F27B 9/20 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatmentFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path
F27B 9/30 - Details, accessories or equipment specially adapted for furnaces of these types
Plant (10) for heat treatment of metal products (PM), comprising : a furnace (20) for heat treatment of metal products (PM), comprising: - a working chamber (201) with at least one opening for entering and/or exiting metal products (PM), at least one conditioning assembly (30) of the atmosphere inside the working chamber (201), which is coupled to the furnace (20) and is in fluid communication with the working chamber (201) and comprises: at least one combustion unit (300) of a combustible fluid and a comburent fluid in a combustion chamber which is defined by the working chamber (201) or is in fluid communication with it; at least one first supply duct (40) and at least one second supply duct (50) for supplying respectively a combustible fluid and a comburent fluid, and adapted to be coupled at the inlet respectively to a respective source of a combustible fluid and a comburent fluid (400, 500), - at least one suction duct (60) for suctioning at least a fraction of the atmosphere inside the working chamber (201), and at least one heat-generating electric unit (310) configured to heat the atmosphere inside the working chamber (201), wherein the electric unit (310) is adapted to be coupled to an electric energy source (320) and is configured to transform the electric energy into thermal energy.
F27B 9/06 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and chargeFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity electrically heated
F27B 9/20 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatmentFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path
A machine for carrying out surface treatments onto rolling mill rolls, which includes a supporting structure extending along a longitudinal direction of development, a casing placed at least partially to cover the supporting structure, at least two supporting elements placed on the supporting structure opposed to each other and aligned along a rotation axis parallel to the longitudinal direction of development, a rotation motor configured to put in rotation the roll when supported by the two supporting elements, a grinding group slidably connected to the supporting structure and which includes a grinding tool, a texturing group slidably connected to the supporting structure and which includes a laser head, and a control unit placed in signal communication with the grinding group and with the texturing group and configured to control the grinding group and the texturing group.
Apparatus and method for surface processing of cylindrical bodies, particularly for surface restoration of laminating cylinders. The apparatus includes a workstation configured to receive a cylindrical body having a lateral surface movable by rotation about an axis of rotation, a laser emitter cooperating with the workstation and configured to emit at least one laser beam, a profile detector configured to detect a detected surface profile of the lateral surface of the cylindrical body, and a control unit operatively configured to perform at least one procedure for restoring the lateral surface of the cylindrical body. The restoration procedure includes a procedure for detecting the surface profile of the cylindrical body, including a step of comparing the detected surface profile with a target surface profile, and a removal procedure including a step of emitting the laser beam on the cylindrical body to remove metallic material and to obtain the target surface profile.
40 - Treatment of materials; recycling, air and water treatment,
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Storage and moving apparatus and machines, namely, power jacks and mechanical and hydraulic lifts; open cast mining, port and yard machines, namely, bucket wheel and chain excavators, surface miners, mobile, semi-mobile and stationary crushing machines for industrial purposes and structural parts and components therefor; mobile transfer conveyors and belt wagons in the nature of open and closed belt conveyors and bucket conveyors; mechanical spreaders and cross pit mechanical spreaders; heap/leach systems, namely, copper or other precious metal extraction machines, long distance conveyors, conveyor belts for open and closed belt conveyors, slope conveyor belts for open and closed belt conveyors; transport crawler track loaders, bucket chain continuous and grab type ship unloaders; ship loaders, namely, cranes for loading and unloading boats and ships, boom stacking machines; reclaiming machines for collecting bulk materials, namely, boom bucket wheel reclaimers, bridge type bucket wheel reclaimers, bridge and portal scraper reclaimers, barrel reclaimers, and combined bucket wheel stacker reclaimers; conveyors for ore, coal and other bulk materials, namely, tube conveyors, belt conveyors; train loading and unloading machines Treatment of materials, namely, metal treatment; consultation in the field of custom manufacture of materials movement machines and metal working and processing machines; environmental impact reduction of all listed technologies in the nature of environmental remediation services, namely, consultation in the field of soil, waste, and water treatment services Electronic control systems for machines for controlling, moving and managing loose material at ports and steel plants and for controlling, moving and managing lines, installations and machinery doing said operations; electronic control systems for Open Cast Mining Equipment, electronic control systems for machines for controlling and managing steel plant materials Furnaces; furnaces sold as a unit with electrical reactors; equipment for heating, heat-treatment, calcinating, smelting, cooking, curing, direct reduction of products and materials for the metallurgical industry, namely, carburizing furnaces and controlled atmosphere furnaces; carburizing/decarburization furnaces; feed gas regulation systems for furnaces based on the measurement of exhaust gas comprised of regulating accessories for gas apparatus; Electric Arc Furnaces for the treatment of post-steelwork residues; pyrometallurgical plants in the nature of electric arc furnaces for the treatment of post-steelwork residues Construction planning, namely, planning and laying out of production facilities Industrial analysis and research services, namely, industrial research in the field of reduction of environmental impact and reduction of energy consumption, design and development of computer hardware and software
6.
PLANT AND PROCESS FOR HIGH-EFFICIENCY PRODUCTION OF HYDROGEN BY PYROLYSIS
The present invent ion relates to a plant for high- efficiency production of hydrogen by pyrolysis of an input gas mixture comprising gaseous hydrocarbons, said plant comprising: a reactor (1) for heating and pyrolyzing said input gas mixture by an electric arc and consequent production of an output produced mixture enriched with hydrogen and containing a solid fraction (Carbon Black and/or carbon in various shapes); a heat exchanger (4) for pre-heating said input gas mixture and for cooling said output produced mixture; said plant being characterized in that: said reactor (1) comprises a containment structure (100) defining a reaction chamber (101), provided with controllable openings for the input (120) of said input gas mixture, for the output (130) of the produced mixture; at least one electrode (200), passing through one or more holes in the containment structure (100), and sealing elements (150) between said holes and said at least one electrode (200) for preventing the gas exchange between interior and exterior, at least one electrically conductive element (300) placed at least partially within said reaction chamber (101), wherein said at least one electrode (200) is movable, relative to other electrodes (200) or to said electrically conductive element (300), along its axis (X), wherein said electric arc is formed between said one or more electrodes (200) and said electrically conductive element (300); and wherein said heat exchanger (4) provides one or more heat exchange and storage elements (42), wherein said heat exchange and storage elements (42) store heat by cooling said produced mixture exiting the reactor (1) and successively or simultaneously transfer heat by pre- heating said gas mixture entering the reactor (1). The invention also relates to a process for high- efficiency production of hydrogen by pyrolysis.
The present invention relates to a heater for heating an input gas or gas mixture to be heated by electric arc and resulting production of an output heated gas or gas mixture, said heater (1') comprising: a containment structure (100 ' ) defining a heating chamber (101'), provided with controllable openings for the input (120') of said input gas or gas mixture to be heated, for the output (130') of the output heated gas or gas mixture; at least one electrode (200'), passing through one or more holes in the containment structure (100 ' ), and sealing elements (150') between said holes and said at least one electrode (200 ' ) for preventing the gas exchange between interior and exterior; at least one electrically conductive element (300 ' ) placed at least partially within said reaction chamber (101 ' ), wherein said at least one electrode (200 ' ) is movable, relative to other electrodes (200 ' ) or to said electrically conductive element (300 ' ), along its axis (X'), wherein said electric arc is formed between said one or more electrodes (200') and said electrically conductive element (300'). The present invention also relates to a plant for conducting chemical processes comprising such a heater d') arranged to heat a process gas or gas mixture.
B01J 19/08 - Processes employing the direct application of electric or wave energy, or particle radiationApparatus therefor
C01B 3/00 - HydrogenGaseous mixtures containing hydrogenSeparation of hydrogen from mixtures containing itPurification of hydrogen
8.
GRANULE AND/OR POWDER SOLID MATERIALS INJECTION LANCE FOR INJECTING SOLID MATERIALS IN THE FORM OF GRANULES AND/OR POWDERS INTO A METALLURGICAL FURNACE
A lance (10) for injecting solid materials in the form of granules and/ or powders into a metallurgical furnace, the lance (10) comprises : a tubular housing (11) having a central longitudinal axis (A) and extending between a distal end (110) and a proximal end (111) opposite to each other and along which, starting from the distal end (110), a plurality of longitudinal segments follow one another, respectively a feeding segment (SA) of solid materials, a transporting segment (ST) of the fed solid materials and an outflow segment (SE) of the transported solid materials comprising an outflow opening (15) at the proximal end (ill); a plurality of distinct tubular ducts (17', 17 " ) arranged inside the housing (11), wherein each of such tubular ducts (17', 17 " ) has a longitudinal development axis (B', B") and longitudinally extends between a first end (170', 170 ' ' ) and a second end (171', 171 ' ' along at least one portion of the feeding segment ( SA), at which it has at least one first input mouth (172', 172 ' ' ) of a respective flow of solid materials (FS ', FS ' ' ), and along at least one portion of the transporting segment (ST) ending in an output mouth (173', 173 ' ' ) of the respective flow of solid materials which is in f luid communication with the outflow opening (15), wherein the longitudinal development axes (B', B") of the tubular ducts (17', 17 " ) are non- co incident with each other and are parallel to the central longitudinal axis (A); and at least one feeding manifold (18', 18 " ) for each tubular duct (17', 17 " ) which is associated with the housing (11) at the feeding segment (SA) and which is in fluid communication with the first input mouth (172', 172 ' ' ) of the respective tubular duct (17', 17 " ) and is provided with at least one connecting junction (19', 19 " ) with a feeding source (S1, S2) of the respective flow of solid materials.
Raw material feed into an electric arc furnace (“EAF”) is melted into heated liquid metal at a controlled temperature with impurities and inclusions removed as a separate liquid slag layer. The heated liquid metal is removed from the EAF into a passively heatable ladle wherein it is moved into a refining station where they are placed into a inductively heated refining holding vessel and wherein vacuum oxygen decarburization is applied to remove carbon, hydrogen, oxygen, nitrogen and other undesirable impurities from the liquid metal. The ladle and liquid metal is then transferred to a refining station/gas atomizer having a controlled vacuum and inert atmosphere wherein the liquid metal is poured from an inductively heated atomizing holder vessel into a heated tundish at a controlled rate wherein high pressure inert gas is applied through a nozzle to create a spray of metal droplets forming spherical shapes as the droplets cool.
B22F 9/08 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
10.
Process and plant for preheating a metal charge fed in continuous to an electric melting furnace
A process and a plant for preheating a metal charge fed in continuous to an electric melting furnace through a preheating tunnel provided with a horizontal conveyor, wherein the metal charge is hit, in countercurrent, by the exhaust fumes or gas leaving the electric melting furnace and by jets of gas ejected through a plurality of nozzles positioned on the hood of the tunnel. The nozzles are arranged in groups interspaced from each other in a longitudinal direction with respect to the tunnel, and generate a small-scale turbulence or inject small fast gas jets that can penetrate the main gas stream passing through the preheating tunnel, and simultaneously generate a “horseshoe vortex” structure composed of a descending central gas flow (“downwash”), and ascending flows (“upwash”) close to the side walls of the preheating tunnel, which enable a desired circulation of the gases.
A machine (10) for carrying out surface treatments onto rolling mill rolls is disclosed, which comprises: - a supporting structure (100) extending along a longitudinal direction (Y) of development; - a casing (50) placed at least partially to cover the supporting structure (100); - at least two supporting elements (101) placed on the supporting structure (100) opposed to each other and aligned along a rotation axis (K) parallel to the longitudinal direction (Y) of development; the supporting elements (101) are configured to support a roll (1) which has a surface (2) to be treated; - a rotation motor (102) configured to put in rotation the roll (1) when supported by the two supporting elements (101); - a grinding group (20) slidably connected to the supporting structure (100) and which comprises a grinding tool (203), where the grinding tool (203) is able to face the roll (1) and movable over a working zone (200) for grinding at least part of the surface (2) of the roll ( 1 ); - a texturing group (40) slidably connected to the supporting structure (100) and which comprises a laser head (403), where the laser head (403) is able to face the roll (1) and movable over the working zone (200) for texturing at least part of the surface (2) of the roll (1); - a control unit (60) placed in signal communication with the grinding group (20) and with the texturing group (40) and configured to control the grinding group (20) and the texturing group (40).
A direct flame furnace burner unit for furnaces for the thermo-chemical treatment of steel strips in continuous hot-dip galvanizing plants includes a burner with a combustion head provided with a combustion chamber having an outlet opening of the combustion flame, and a body to which the combustion head is fixed. The body includes a first chamber which is in communication with the combustion chamber, a first lance for the injection of a fuel into the combustion chamber, a mixing chamber provided with at least a first inlet and a second inlet opening which is connectable to a second supply source, at least a second lance for the injection of the mixture into the combustion chamber. The burner is operable in two distinct operating modes, a diffusive flame combustion mode and a premixed flame combustion mode.
C21D 1/76 - Adjusting the composition of the atmosphere
C21D 11/00 - Process control or regulation for heat treatments
C21D 8/02 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
C21D 8/04 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
C21D 9/00 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor
C21D 9/48 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals deep-drawing sheets
C21D 9/573 - Continuous furnaces for strip or wire with cooling
F23D 14/22 - Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
F27D 99/00 - Subject matter not provided for in other groups of this subclass
13.
Process and apparatus for the granulation of slag deriving from iron and steel production
A process for the granulation of slag deriving from iron and steel production, in particular a process for the granulation of slag in air, and an apparatus configured to perform this process, provide for the production of granulates with different characteristics depending on the intended use, thus making this process and apparatus particularly versatile. More specifically, a process according to the present invention includes a step of controlling and modifying the time and/or the cooling rate of the slag granules so as to obtain slag granules having desired morphological features.
Apparatus (10) and method for surface processing of cylindrical bodies (1), particularly for surface restoration of laminating cylinders. The apparatus includes a workstation (100) configured to receive a cylindrical body having a lateral surface movable by rotation about an axis of rotation K, a laser emitter (600) cooperating with the workstation and configured to emit at least one laser beam, a profile detector (700) configured to detect a detected surface profile of the lateral surface of the cylindrical body, and a control unit (15) operatively configured to perform at least one procedure for restoring the lateral surface of the cylindrical body. The restoration procedure includes a procedure for detecting the surface profile of the cylindrical body, including a step of comparing the detected surface profile with a target surface profile, and a removal procedure including a step of emitting the laser beam on the cylindrical body to remove metallic material and to obtain the target surface profile.
B23K 26/08 - Devices involving relative movement between laser beam and workpiece
B21B 38/00 - Methods or devices for measuring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
B21C 51/00 - Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses
15.
Improved process and plant for preheating a metal charge fed in continuous to an electric melting furnace
A process and plant for preheating a metal charge fed in continuous to an electric melting furnace through a preheating tunnel provided with side walls, a vault and a horizontal conveyor, wherein the metal charge is enveloped in countercurrent by fumes or exhaust gases exiting from the electric melting furnace, includes causing an air intake from the surrounding environment through openings along the preheating tunnel to complete the combustion of the fumes or exhaust gases. The intake is regulated by acting on suction fans and/or on the openings, based on measurements by temperature sensors and/or the composition of the outgoing gases in or downstream of the terminal part of the tunnel. The metal charge is enveloped by jets of gas ejected through a plurality of nozzles arranged non-uniformly longitudinally on the vault of the tunnel, with a greater concentration on the top of the vault of the tunnel.
An apparatus for surface processing of cylindrical bodies including a work station (100) for rotatably supporting the cylindrical body (1), a laser emitter (600) movable along a main direction (X) parallel to the rotation axis (K) of the cylindrical body (1) and according to an auxiliary direction (Z) transverse to the main direction (X), a distance sensor (700) for detecting a control parameter relative to a distance of the sensor or the laser emitter (600), and a control unit (15) configured for commanding a movement of the laser emitter (600) and of the distance sensor (700) along said main direction (X), commanding the emission of a laser beam directed towards a surface of the cylindrical body (1), executing a correction procedure adapted to compensate for the eccentricity of the cylindrical body (1) with respect to said rotation axis (K).
Methods and systems for producing steel or similar molten-iron-containing materials in melting or smelting furnaces utilizing pre-reduced iron ore, known also as direct reduced iron (DRI) or sponge iron, wherein the emission of CO2 and other greenhouse gases is significantly low. Such methods and systems are based on producing DRI in a direct reduction furnace with a reducing gas comprising hydrogen; melting at least a portion of the DRI in a melting furnace in order to generate hot gases; producing steam and/or hot water using the heat contained in the hot gases. From the steam and/or hot water hydrogen is produced by electrolysis, at least a portion of which is fed to the direct reduction furnace as a component of the reducing gas to produce the DRI.
Treatment apparatus of hot flue gases emitted by an industrial plant, comprising a gas circuit and having a first heat exchange chamber along a first branch and a second heat exchange chambers along a second branch, a temperature measuring device and/or a flow rate measuring device of the flue gases, a regulating member movable at least between a first position and a second position. In the first position transit of the flue gases into the first heat exchange chamber is allowed, while transit of flue gases into the second heat exchange chamber is prevented or reduced, and in second position transit of the flue gases into both the first and the second heat exchange chambers is allowed. A control unit is configured to command the regulating member in the first or in the second position based on the temperature and/or flow rate values of the flue gases.
Treatment apparatus of hot flue gases emitted by an industrial plant, comprising a gas circuit and having a first heat exchange chamber along a first branch and a second heat exchange chambers along a second branch, a temperature measuring device and/or a flow rate measuring device of the flue gases, a regulating member movable at least between a first position and a second position. In the first position transit of the flue gases into the first heat exchange chamber is allowed, while transit of flue gases into the second heat exchange chamber is prevented or reduced, and in second position transit of the flue gases into both the first and the second heat exchange chambers is allowed. A control unit is configured to command the regulating member in the first or in the second position based on the temperature and/or flow rate values of the flue gases.
The present invention relates to a process for passivating a tinplate comprising the following steps: a. subjecting the tinplate to at least one cathodic electrolytic treatment in an aqueous solution containing at least one sulphate of an alkali metal to form a tin oxide surface layer having a thickness of less than 6 mC/cm2; b. subjecting the tinplate from step a to at least one cathodic electrolytic treatment in an aqueous solution containing at least sulphate ions and zirconium ions to form a passivation layer containing zirconium on said tin oxide surface layer, the amount of zirconium in the passivation layer being 12 mg/m2 at most; c. subjecting the passivated tinplate from step b to an oxidation treatment to form an oxidized passivation layer, said oxidation treatment comprising at least one step selected from: c1. contacting the tinplate with an aqueous oxidising solution; c2. subjecting the tinplate to an anodic electrolytic treatment.
Direct flame furnace burner unit (100) for furnaces (200) for the thermo-chemical treatment of steel strips in continuous hot-dip galvanizing plants, comprising a burner provided with: - a combustion head (11) provided with a combustion chamber (12) having an outlet opening (13) of the combustion flame; - a body (14) to which the combustion head (11) is fixed and which comprises: a first chamber (16) which is in communication with the combustion chamber (12) and which is provided with at least one inlet opening (17) connectable to a supply source (SA1) of a pre- heated comburent, a first lance (18) for the injection of a fuel into the combustion chamber (12) and which has an inlet end which is connectable to a first supply source of a fuel (SG1) and an outlet end in communication with the combustion chamber (12), a mixing chamber (19) provided with at least a first inlet opening (20) which is connectable to a supply source of a not pre-heated comburent (SA2), with at least a second inlet opening (21) which is connectable to a second supply source of a fuel (SG2) and with at least an outlet opening of the mixture formed therein; at least a second lance (23) for the injection of the mixture into the combustion chamber (12) and having an inlet end in communication with the outlet opening of the mixing chamber (19) and an outlet end in communication with the combustion chamber (12); wherein the burner is alternatively and selectively operable in two distinct operating modes: a diffusive flame combustion mode, with lambda ranging between 0.9 and 0.98, wherein the combustion chamber (12) is fed only through the first chamber (16) and the first lance (18) respectively with the preheated comburent and with the fuel, and a premixed flame combustion mode, with lambda ranging between 1 and 1.25, wherein the combustion chamber (12) is fed only by means of the second lance (23) with the mixture formed inside the mixing chamber (19).
Direct flame furnace burner unit (100) for furnaces (200) for the thermo-chemical treatment of steel strips in continuous hot-dip galvanizing plants, comprising a burner provided with: - a combustion head (11) provided with a combustion chamber (12) having an outlet opening (13) of the combustion flame; - a body (14) to which the combustion head (11) is fixed and which comprises: a first chamber (16) which is in communication with the combustion chamber (12) and which is provided with at least one inlet opening (17) connectable to a supply source (SA1) of a pre- heated comburent, a first lance (18) for the injection of a fuel into the combustion chamber (12) and which has an inlet end which is connectable to a first supply source of a fuel (SG1) and an outlet end in communication with the combustion chamber (12), a mixing chamber (19) provided with at least a first inlet opening (20) which is connectable to a supply source of a not pre-heated comburent (SA2), with at least a second inlet opening (21) which is connectable to a second supply source of a fuel (SG2) and with at least an outlet opening of the mixture formed therein; at least a second lance (23) for the injection of the mixture into the combustion chamber (12) and having an inlet end in communication with the outlet opening of the mixing chamber (19) and an outlet end in communication with the combustion chamber (12); wherein the burner is alternatively and selectively operable in two distinct operating modes: a diffusive flame combustion mode, with lambda ranging between 0.9 and 0.98, wherein the combustion chamber (12) is fed only through the first chamber (16) and the first lance (18) respectively with the preheated comburent and with the fuel, and a premixed flame combustion mode, with lambda ranging between 1 and 1.25, wherein the combustion chamber (12) is fed only by means of the second lance (23) with the mixture formed inside the mixing chamber (19).
42 - Scientific, technological and industrial services, research and design
Goods & Services
Furnaces for melting metals; reactors being industrial
chemical installations; reactors for gas-solids reactions;
founding furnaces; electric furnaces for metallurgical
purposes; smelting furnaces. Scientific research; technological research; design
services; consultancy in the field of technological design;
engineering; scientific and technological services; design
of industrial plant; technical feasibility studies.
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Furnaces for melting metals; reactors being industrial chemical installations, namely chemical reactors for the direct reduction of iron ores; reactors for gas-solids reactions; founding furnaces, namely blast furnaces, casting furnaces, melting furnaces; electric furnaces for industrial purposes being metallurgical purposes; smelting furnaces (1) Scientific research in the field of metalworking; technological research in the field of metalworking; industrial design services; consultancy in the field of technological design, namely consultancy in the field of design of automated machinery for use in the industrial sector; foundry engineering; architectural design, namely design of industrial plant; conducting feasibility studies
42 - Scientific, technological and industrial services, research and design
Goods & Services
Furnaces for melting metals; founding furnaces, electric furnaces for metallurgical purposes, smelting furnaces Technological research, namely, research and development services in the fields of iron and steel processes; design services, namely, technical project design services of industrial plants for the treatment of metals; consultancy in the field of technological design of furnaces, burners for furnaces, processes and equipment for the heating, heat treatment, calcination, firing, direct reduction of products and materials for the metallurgical industry; engineering; scientific and technological services, namely, engineering services relating to ovens and furnaces; design of industrial plant, namely, technical project design services of plants for the treatment of metals; technical feasibility studies in the field of engineering relating to ovens and furnaces
26.
PROCESS FOR PICKLING AND/OR PASSIVATING A STAINLESS STEEL
The present invention relates to a process for pickling and/or passivating a stainless steel with acid aqueous treatment solutions comprising FeIIIions and FeII ions, wherein at least a first and a second treatment solution are used in sequence, wherein: the redox potential of the second solution is maintained at a value higher than the redox potential of the first solution; the total concentration of iron ions in the first treatment solution is maintained at a value higher than the total concentration of iron ions in the second treatment solution; the first solution, when exhausted, is subjected to regeneration to obtain regenerated acid, which is recycled to the second solution; part of the second solution is transferred to the first solution to compensate for the removal of the first exhausted solution.
A process and a plant for preheating a metal charge fed in continuous to an electric melting furnace through a preheating tunnel provided with a horizontal conveyor, wherein the metal charge is hit, in countercurrent, by the exhaust fumes or gas leaving the electric melting furnace and by jets of gas ejected through a plurality of nozzles positioned on the hood of the tunnel. The nozzles are arranged in groups interspaced from each other in a longitudinal direction with respect to the tunnel, and generate a small-scale turbulence or inject small fast gas jets that can penetrate the main gas stream passing through the preheating tunnel, and simultaneously generate a “horseshoe vortex” structure composed of a descending central gas flow (“downwash”), and ascending flows (“upwash”) close to the side walls of the preheating tunnel, which enable a desired circulation of the gases.
The present invention relates to a process for the granulation of slag deriving from iron and steel production, in particular a process for the granulation of slag in air, in addition to an apparatus suitable for implementing this process. In particular, the process and apparatus according to the present invention allow granulates with different characteristics to be produced, depending on the intended use, thus proving to be particularly versatile. More specifically, the process object of the present invention is characterized in that it comprises at least one step consisting in controlling and modifying the time and/or the cooling rate of the slag granules in order to obtain slag granules having the desired morphological characteristics.
The present invention relates to a process for the granulation of slag deriving from iron and steel production, in particular a process for the granulation of slag in air, in addition to an apparatus suitable for implementing this process. In particular, the process and apparatus according to the present invention allow granulates with different characteristics to be produced, depending on the intended use, thus proving to be particularly versatile. More specifically, the process object of the present invention is characterized in that it comprises at least one step consisting in controlling and modifying the time and/or the cooling rate of the slag granules in order to obtain slag granules having the desired morphological characteristics.
A process and plant for preheating a metal charge (11) fed in continuous to an electric melting furnace (12) through a preheating tunnel (16) provided with side walls, a vault and horizontal conveyor (13), wherein said metal charge (11) is enveloped in countercurrent by the fumes or exhaust gases (17) exiting from said electric melting furnace (12). According to said process and plant, the air intake for completing the combustion of said fumes or exhaust gases (17) is effected from the surrounding environment through openings along the preheating tunnel, preferably openings present at the interface between said preheating tunnel and said electric melting furnace, said intake being regulated by acting on suction fans and/or on said openings, on the basis of measurements revealed by temperature sensors (21) and/or composition of the outgoing gases located in the terminal part of said tunnel (16) or downstream of said part; the metal charge is enveloped by jets of gas ejected through a plurality of nozzles (15) arranged on the vault of said tunnel (16), the jets of gas injected by said nozzles (15) being non- uniformly distributed transversely on the vault of the preheating tunnel (16), with a greater concentration on the top of the vault of said tunnel (16) and the jets of gas being non- uniformly distributed longitudinally along said preheating A process and plant for preheating a metal charge (11) fed in continuous to an electric melting furnace (12) through a preheating tunnel (16) provided with side walls, a vault and horizontal conveyor (13), wherein said metal charge (11) is enveloped in countercurrent by the fumes or exhaust gases (17) exiting from said electric melting furnace (12). According to said process and plant, the air intake for completing the combustion of said fumes or exhaust gases (17) is effected from the surrounding environment through openings along the preheating tunnel, preferably openings present at the interface between said preheating tunnel and said electric melting furnace, said intake being regulated by acting on suction fans and/or on said openings, on the basis of measurements revealed by temperature sensors (21) and/or composition of the outgoing gases located in the terminal part of said tunnel (16) or downstream of said part; the metal charge is enveloped by jets of gas ejected through a plurality of nozzles (15) arranged on the vault of said tunnel (16), the jets of gas injected by said nozzles (15) being non- uniformly distributed transversely on the vault of the preheating tunnel (16), with a greater concentration on the top of the vault of said tunnel (16) and the jets of gas being non- uniformly distributed longitudinally along said preheating tunnel (16), transverse sections being provided along which said nozzles (15) are distributed, interspersed with longitudinal sections of tunnel (16) without said nozzles (15) so as to avoid interference phenomena.
3C; charging the charge of pre-reduced iron ore into the electric arc furnace; and melting the DRI charge to form liquid cast iron having at least 80% by weight of actual carbon content deriving from the carbon in the charge of pre-reduced iron ore, the melting step being in a reducing atmosphere and in a melting chamber of the electric arc furnace subjected to a positive internal pressure generated by the gases produced by reduction reactions that develop during melting.
B22F 9/08 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
C21B 13/12 - Making spongy iron or liquid steel, by direct processes in electric furnaces
A furnace assembly for a metal-making process, including: an electric arc furnace configured for flat bath operation and having a bottom, and an electromagnetic stirrer configured to be arranged underneath the bottom of the electric arc furnace to enable stirring of molten metal in the electric arc furnace.
F27B 3/08 - Hearth-type furnaces, e.g. of reverberatory typeElectric arc furnaces heated electrically, e.g. electric arc furnaces, with or without any other source of heat
42 - Scientific, technological and industrial services, research and design
Goods & Services
Furnaces for melting metals; Reactors being industrial chemical installations; Reactors for gas-solids reactions; Founding furnaces; Electric furnaces for metallurgical purposes; Smelting furnaces. Scientific research; Technological research; Design services; Consultancy in the field of technological design; Engineering services; Science and technology services; Design of industrial plant; Engineering feasibility studies.
34.
Method for producing metal powders by means of gas atomization and production plant of metal powders according to such method
A method for producing metal powders by gas atomization is provided, including providing a metal charge; melting the metal charge inside an electric-arc furnace, controlling its composition until a molten metal bath having a desired composition is obtained; tapping the bath from the furnace, collecting it inside a ladle; refining the bath under controlled atmosphere, vacuum, or overpressure condition; atomizing the refined bath by feeding it into a gas atomizer, inside which a molten metal bath flow is produced, and impinging the molten metal bath flow with an atomization inert gas stream for the atomization of the molten metal bath into metal powders; and extracting the obtained metal powders from the gas atomizer.
B22F 9/08 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
A lamination cylinder includes a surface structure, on which a plurality of craters is defined having a different geometry and a random distribution. Some of the craters are partially superimposed with respect to each other.
An apparatus and relative process for the surface processing of cylindrical bodies are described, in particular for the surface texturing of rolling cylinders. The apparatus comprises a work station (100) for rotatably supporting the cylindrical body (1), a laser emitter (600) movable along a main direction (X) parallel to the rotation axis (K) of the cylindrical body (1) and according to an auxiliary direction (Z) transverse to the main direction (X), a distance sensor (700) for detecting a control parameter relative to a distance of the sensor itself or of the laser emitter (600) from an external lateral surface of the cylindrical body (1), and a control unit (15) connected with the laser emitter (600) and with the distance sensor (700). The control unit (15) is configured for commanding a movement of the laser emitter (600) and of the distance sensor (700) along said main direction (X), commanding the emission of a laser beam directed towards a surface of the cylindrical body (1), executing a correction procedure adapted to compensate for the eccentricity of the cylindrical body (1) with respect to said rotation axis (K).
An apparatus and relative process for the surface processing of cylindrical bodies are described, in particular for the surface texturing of rolling cylinders. The apparatus comprises a work station (100) for rotatably supporting the cylindrical body (1), a laser emitter (600) movable along a main direction (X) parallel to the rotation axis (K) of the cylindrical body (1) and according to an auxiliary direction (Z) transverse to the main direction (X), a distance sensor (700) for detecting a control parameter relative to a distance of the sensor itself or of the laser emitter (600) from an external lateral surface of the cylindrical body (1), and a control unit (15) connected with the laser emitter (600) and with the distance sensor (700). The control unit (15) is configured for commanding a movement of the laser emitter (600) and of the distance sensor (700) along said main direction (X), commanding the emission of a laser beam directed towards a surface of the cylindrical body (1), executing a correction procedure adapted to compensate for the eccentricity of the cylindrical body (1) with respect to said rotation axis (K).
The present invention generally relates to methods and systems for producing steel or similar molten-iron-containing materials in melting or smelting furnaces utilizing pre-reduced iron ore, known also as direct reduced iron (DRI) or sponge iron, wherein the emission of CO2 and other greenhouse gases is significantly low. Such methods and systems are based on producing DRI in a direct reduction furnace with a reducing gas comprising hydrogen; melting at least a portion of said DRI in a melting furnace in order to generate hot gases; producing steam and/or hot water using the heat contained in said hot gases. From said steam and/or hot water hydrogen is produced by electrolysis, at least a portion of which is fed to said direct reduction furnace as a component of said reducing gas to produce the DRI.
A method and apparatus for the inspection of a hostile environment includes a sensorized device carrying a plurality of image sensors positioned with different orientations, so as to detect image data of the hostile environment; a support adapted to support the sensorized device in the hostile environment; a processor of the image data generating a spherical and/or three-dimensional image based on the image data; and a remote display device adapted to be positioned outside the hostile environment and in communication with at least the processor of the image data, the plurality of sensors detecting contemporaneous image data of at least 60% of 4π steradians of the hostile environment, the apparatus being adapted for a hostile environment with temperatures and/or atmospheric contaminants harmful or dangerous for human beings.
G08B 13/196 - Actuation by interference with heat, light, or radiation of shorter wavelengthActuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
F16M 11/18 - Heads with mechanism for moving the apparatus relatively to the stand
G08B 17/00 - Fire alarmsAlarms responsive to explosion
G03B 35/08 - Stereoscopic photography by simultaneous recording
G03B 37/04 - Panoramic or wide-screen photographyPhotographing extended surfaces, e.g. for surveyingPhotographing internal surfaces, e.g. of pipe with cameras or projectors providing touching or overlapping fields of view
Raw material feed into an electric arc furnace ("EAF") is melted into heated liquid metal at a controlled temperature with impurities and inclusions removed as a separate liquid slag layer. The heated liquid metal is removed from the EAF into a passively heatable ladle wherein it is moved into a refining station where they are placed into a inductively heated refining holding vessel and wherein vacuum oxygen decarburization is applied to remove carbon, hydrogen, oxygen, nitrogen and other undesirable impurities from the liquid metal. The ladle and liquid metal is then transferred to a refining station/gas atomizer having a controlled vacuum and inert atmosphere wherein the liquid metal is poured from an inductively heated atomizing holder vessel into a heated tundish at a controlled rate wherein high pressure inert gas is applied through a nozzle to create a spray of metal droplets forming spherical shapes as the droplets that cool and fall into a bottom formed in the chamber. Spherical powder comprising the droplets are removed from the chamber through screen and blenders and then classified by size.
B22F 9/06 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from liquid material
B22F 9/08 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
C21C 5/52 - Manufacture of steel in electric furnaces
Raw material feed into an electric arc furnace ("EAF") is melted into heated liquid metal at a controlled temperature with impurities and inclusions removed as a separate liquid slag layer. The heated liquid metal is removed from the EAF into a passively heatable ladle wherein it is moved into a refining station where they are placed into a inductively heated refining holding vessel and wherein vacuum oxygen decarburization is applied to remove carbon, hydrogen, oxygen, nitrogen and other undesirable impurities from the liquid metal. The ladle and liquid metal is then transferred to a refining station/gas atomizer having a controlled vacuum and inert atmosphere wherein the liquid metal is poured from an inductively heated atomizing holder vessel into a heated tundish at a controlled rate wherein high pressure inert gas is applied through a nozzle to create a spray of metal droplets forming spherical shapes as the droplets that cool and fall into a bottom formed in the chamber. Spherical powder comprising the droplets are removed from the chamber through screen and blenders and then classified by size.
B22F 9/06 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from liquid material
B22F 9/08 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
42.
EQUIPMENT FOR MEASUREMENT AND CONTROL OF LOAD MATERIAL FED INTO A FURNACE
A system and equipment tomeasure and control the feeding of load material into an electrical arc furnace(EAF) includesan automatic control device feeding the load material;a measuring device positioned between the EAF and the tilting platform that includes an upper plate adapted to slide against the EAF, a lower plate engaged to the tilting platform, and a ring structure therebetween having a peripheral ring wall, a ring plate extending across the ring structure, and a contact member coupled to the ring plate that upperly contacts the upper plate and lowerly approaches, without contacting the lower plate; and one or more sensors measuring a deformation of the ring plate upon application of a load on the upper plate.
G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
F27D 3/00 - ChargingDischargingManipulation of charge
F27D 21/00 - Arrangement of monitoring devicesArrangement of safety devices
C21C 5/52 - Manufacture of steel in electric furnaces
43.
EQUIPMENT FOR MEASUREMENT AND CONTROL OF LOAD MATERIAL FED INTO A FURNACE
A system and equipment tomeasure and control the feeding of load material into an electrical arc furnace(EAF) includesan automatic control device feeding the load material;a measuring device positioned between the EAF and the tilting platform that includes an upper plate adapted to slide against the EAF, a lower plate engaged to the tilting platform, and a ring structure therebetween having a peripheral ring wall, a ring plate extending across the ring structure, and a contact member coupled to the ring plate that upperly contacts the upper plate and lowerly approaches, without contacting the lower plate; and one or more sensors measuring a deformation of the ring plate upon application of a load on the upper plate.
C21C 5/52 - Manufacture of steel in electric furnaces
F27D 3/00 - ChargingDischargingManipulation of charge
F27D 21/00 - Arrangement of monitoring devicesArrangement of safety devices
G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
44.
IMPROVED PROCESS AND PLANT FOR PREHEATING A METAL CHARGE FED IN CONTINUOUS TO AN ELECTRIC MELTING FURNACE
Process and plant for preheating a metal charge (11) fed in continuous to an electric melting furnace (12) through a preheating tunnel (16) provided with a horizontal conveyor (13), wherein said metal charge (11) is hit, in countercurrent, by the exhaust fumes or gas (17) leaving said electric melting furnace (12) and by jets of gas ejected through a plurality of nozzles (15) positioned on the hood of said tunnel (16) provided with side walls and said hood. Said nozzles (15) are arranged in groups interspaced with respect to each other in a longitudinal direction with respect to the tunnel, and generate a small-scale turbulence or inject small fast gas jets that can penetrate the main gas stream (17) passing through the preheating tunnel (16), and said nozzles (15) simultaneously generate a "horseshoe vortex" structure, consisting of a descending central gas flow ("downwash"), and ascending flows ("upwash") close to the side walls of the preheating tunnel (16) which allow the necessary circulation of the gases.
F27D 13/00 - Apparatus for preheating chargesArrangements for preheating charges
45.
Convertible metallurgical furnace and modular metallurgical plant comprising said furnace for conducting production processes for the production of metals in the molten state, in particular steel or cast iron
A metallurgical furnace including a vessel with a lower shell for containing a metal bath, the metal bath composed of molten metal and an overlying layer of slag. The lower shell is tiltingly supported and provided with a deslagging opening for evacuating the slag and a tapping opening for tapping the molten metal. The vessel includes an upper shell removably positioned on the lower shell and first and second inlet openings for feeding. The vessel includes a closing roof for the upper closing of the vessel removably positioned on the upper shell and a passage opening for the passage, through the same, of at least one electrode, at least one charge opening for feeding, through the same, charge material in the solid state. At least one of the inlet openings, passage opening, and charge opening is closed or associated with a closing element.
C21B 11/10 - Making pig-iron other than in blast furnaces in electric furnaces
C21C 5/52 - Manufacture of steel in electric furnaces
C21C 5/54 - Processes yielding slags of special composition
F27B 14/02 - Crucible or pot furnacesTank furnaces with tilting or rocking arrangements
F27B 14/06 - Crucible or pot furnacesTank furnaces heated electrically, e.g. induction crucible furnaces, with or without any other source of heat
F27D 3/14 - Charging or discharging liquid or molten material
F27D 3/15 - Tapping equipmentEquipment for removing slag
H05B 7/144 - Power supplies specially adapted for heating by electric dischargeAutomatic control of power, e.g. by positioning of electrodes
H05B 7/20 - Direct heating by arc discharge, i.e. where at least one end of the arc directly acts on the material to be heated, including additional resistance heating by arc current flowing through the material to be heated
A furnace assembly for a metal-making process, including: an electric arc furnace configured for flat bath operation and having a bottom, and an electromagnetic stirrer configured to be arranged underneath the bottom of the electric arc furnace to enable stirring of molten metal in the electric arc furnace.
F27B 3/08 - Hearth-type furnaces, e.g. of reverberatory typeElectric arc furnaces heated electrically, e.g. electric arc furnaces, with or without any other source of heat
An industrial recuperative burner (10) configured to be mounted on a wall (100) of an industrial furnace so that such burner (10) extends at least partially through an opening (101) formed in the wall of the furnace, the wall (100) delimiting a chamber (102) of the furnace, wherein the burner comprises a recuperator configured to heat at least one fluid selected among a combustible fluid and an comburent fluid by means of the heat of the combustion fumes generated by the combustion of the combustible fluid and of the comburent fluid, the recuperator comprising: an exchanger-body (11) for the heat exchange between the fluid to be heated and the combustion fumes, which exchanger-body (11) extending along a longitudinal axis (A-A) between a first end (11a) and a second end (lib), which are axially opposite one another, a matrix formed in the exchanger-body (11) and that consists of a plurality of first channels (12), which are crossed by the fluid to be heated, and of a plurality of second channels (13), which are crossed by the combustion fumes, wherein the first channels (12) and the second channels (13) extend along the longitudinal extension of the exchanger-body between the first end (11a) and the second end (lib) thereof, are arranged alternately with one another along a plurality of lines and along a plurality of columns forming, in transverse planes to the longitudinal axis (A-A), a chessboard matrix and are separated from one another by separating walls (14), and wherein each separating wall (14) that separates mutually adjacent first channels (12) and second channels (13) borders, on one side, at least one of the first channels (12) and, on the other side, at least one of the second channels (13), and at least one feeding duct (15) for feeding the other fluid selected from the comburent fluid and the combustible fluid, which has an inlet end (15a) associable with a source of the other fluid and an outlet end (15b) in fluid communication with a combustion chamber (CC).
A system and equipment to measure and control the feeding of load material into an electrical arc furnace (EAF) includes an automatic control device feeding the load material; a measuring device positioned between the EAF and the tilting platform that includes an upper plate adapted to slide against the EAF, a lower plate engaged to the tilting platform, and a ring structure therebetween having a peripheral ring wall, a ring plate extending across the ring structure, and a contact member coupled to the ring plate that upperly contacts the upper plate and lowerly approaches, without contacting the lower plate; and one or more sensors measuring a deformation of the ring plate upon application of a load on the upper plate.
A method and apparatus for the inspection of a hostile environment includes a sensorized device carrying a plurality of image sensors positioned with different orientations, so as to detect image data of the hostile environment; a support adapted to support the sensorized device in the hostile environment; a processor of the image data generating a spherical and/or three-dimensional image based on the image data; and a remote display device with respect to the sensorized device adapted to be positioned outside the hostile environment and in communication with at least the processor of the image data, the apparatus being adapted for a hostile environment with temperatures and/or atmospheric contaminants harmful or dangerous for human beings, and the plurality of sensors detecting contemporaneous image data of at least 60% of 4π steradians of the hostile environment.
G08B 13/196 - Actuation by interference with heat, light, or radiation of shorter wavelengthActuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
F16M 11/18 - Heads with mechanism for moving the apparatus relatively to the stand
G08B 17/00 - Fire alarmsAlarms responsive to explosion
G03B 35/08 - Stereoscopic photography by simultaneous recording
G03B 37/04 - Panoramic or wide-screen photographyPhotographing extended surfaces, e.g. for surveyingPhotographing internal surfaces, e.g. of pipe with cameras or projectors providing touching or overlapping fields of view
The present invention relates to a device (10, 100) for continuous unloading of non-coherent material, of the split type, provided with a horizontal excavating foot assembly (11, 111) rotatably connected with a lower terminal portion of a bucket chain elevator assembly (13, 113) having a vertical axis; there is provided, on the horizontal excavating foot assembly (11, 111) having fixed geometry, a mobile excavating device (19, 119) that collects non-coherent material from an excavating area (22, 122) to convey it to its collecting area (28, 128), with the excavating portion (21, 121) that moves horizontally with respect to the excavating area (22, 122) and at a height lower than the collecting area (28, 29, 128, 129).
A method for producing metal powders by means of gas atomization, comprising at least the steps of: a) providing a metal charge comprising at least one material selected from the group comprising metal scraps, metal minerals and metal powders; b) melting the metal charge inside an electric-arc furnace (106) controlling its composition until a molten metal bath having a desired composition is obtained; c) tapping the molten metal bath from the electric-arc furnace (106), collecting it inside at least one ladle (104); cl) refining the molten metal bath collected in the ladle (104) until obtaining a refined molten metal bath, wherein said refining step cl) is conducted under controlled atmosphere or vacuum or overpressure conditions by introducing said ladle (104) containing the molten metal bath tapped from said electric-arc furnace (106) into a closable refining chamber (114), inside which said controlled atmosphere or said vacuum or overpressure conditions are generated; d) atomizing the refined molten metal bath tapped from the electric-arc furnace by feeding the refined molten metal bath tapped from the electric-arc furnace into a gas atomizer, inside which a molten metal bath flow is produced, and impinging the molten metal bath flow with an atomization inert gas stream for the atomization the molten metal bath into metal powders; e) extracting the thus obtained metal powders from gas atomizer.
B22F 9/08 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
53.
Method and apparatus for the production of cast iron, cast iron produced according to said method
3C; charging the charge of pre-reduced iron ore into the electric arc furnace; and melting the DRI charge to form liquid cast iron having at least 80% by weight of actual carbon content deriving from the carbon in the charge of pre-reduced iron ore, the melting step being in a reducing atmosphere and in a melting chamber of the electric arc furnace subjected to a positive internal pressure generated by the gases produced by reduction reactions that develop during melting.
B22F 9/08 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
C21B 13/12 - Making spongy iron or liquid steel, by direct processes in electric furnaces
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Installations, equipment and machinery for the metallurgy
industry, namely, continuous scraps loaders for use in iron
and steel mills, flues being structural parts for iron and
steel mills, conveyors for feeding industrial melting
furnaces for use in iron and steel mills, and conveyors for
use in liquid metal mills; stirrers [parts of metal smelting
installations] for molten metals and for metal alloys. Furnaces for the production of molten metals; stirrers for
metallurgical furnaces, being combined with furnaces. Installation, maintenance and repair of machinery for the
metallurgical industry. Technical project design services of plants for the
treatment of metals.
The present disclosure relates to a furnace assembly (1) for a metal-making process, comprising:an electric arc furnace (3) configured for flat bath operation and having a bottom(3a),and an electromagnetic stirrer (5) configured to be arranged underneath the bottom (3a) of the electric arc furnace (3) to enable stirring of molten metal in the electric arc furnace(3).
F27B 3/08 - Hearth-type furnaces, e.g. of reverberatory typeElectric arc furnaces heated electrically, e.g. electric arc furnaces, with or without any other source of heat
F27B 3/10 - Details, accessories or equipment, e.g. dust-collectors, specially adapted for hearth-type furnaces
F27B 3/28 - Arrangement of controlling, monitoring, alarm or like devices
56.
CONVERTIBLE METALLURGICAL FURNACE AND MODULAR METALLURGICAL PLANT COMPRISING SAID FURNACE FOR CONDUCTING PRODUCTION PROCESSES FOR THE PRODUCTION OF METALS IN THE MOLTEN STATE, IN PARTICUALR STEEL OR CAST IRON
A metallurgical furnace (10) of the convertible type to an electric arc furnace or to a converter for conducting production processes for the production of metals in the molten state, in particular steel or cast iron, it comprises a vessel, in turn comprising a lower shell (11) for containing the metal bath, the metal bath being composed of molten metal and an overlying layer of slag, wherein the lower shell (11) is tiltingly supported and is provided with a deslagging opening (15) for evacuating the slag and with a tapping opening (16) for tapping the molten metal, and an upper shell (12) removably positioned on the lower shell (11) and provided with at least one inlet opening (17a, 17b) for feeding, through the same, charge material in the solid state or in the molten state, a closing roof (13) for the upper closing of the vessel, wherein the closing roof (13) is removably positioned on the upper shell (12) and is provided with a passage opening (18) for the passage, through the same, of at least one electrode (E) and at least one charge opening (20) for feeding, through the same, charge material in the solid state, wherein at least one of the inlet openings (17a, 17b), the passage opening (18), the charge opening (20) is closed or can be associated with a closing element of the removable type, and wherein the lower shell (11) has a diameter D and the vessel has an overall height H ranging from 0.70D to 1.25D, preferably ranging from 0.70D to 0.80D if the furnace is used as an electric arc furnace and from 0.80D to 1.25D if the furnace is used as a converter.
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Installations, equipment and machinery for the metallurgy industry, namely, exhaust ducts with heat recovery being structural parts for iron and steel mills, conveyors being machines for feeding industrial melting furnaces for use in iron and steel mills, and conveyors being machines for use in liquid metal mills; metalworking machine tools, namely, stirrers being parts of metal smelting installations for molten metals and for metal alloy Furnaces for the production of molten metals; stirrers specially adapted for metallurgical furnaces Installation, maintenance and repair of metalworking machinery for the metallurgical industry Technical project design services of industrial plants for the treatment of metals
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Installations, equipment and machinery for the metallurgy industry, namely, exhaust ducts as structural parts for iron and steel milling machines, conveyors for feeding industrial melting furnaces for use in iron and steel mills, and conveyors for use in liquid metal mills; metalworking machine tools, namely, stirrers being parts of metal smelting installations for molten metals and for metal alloy.
(2) Furnaces for the production of molten metals; motor driven tools, namely stirrers specially adapted for metallurgical furnaces. (1) Installation, maintenance and repair of metalworking machinery for the metallurgical industry.
(2) Technical project design services of plants for the treatment of metals.
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Installations and machinery for the iron and steel industry; Agitators for molten metals and cast metals. Furnaces for the production of molten metal; Agitators for metallurgical furnaces. Installation, maintenance and repair of machinery for the iron and steel industry. Design of metal-processing installations.
60.
Positioning of a spindle with micrometric forwarding control and tilting of its rotation axis
A positioning of a spindle with micrometric forwarding control and tilting of its rotation axis includes a spindle shaft rotatingly supported inside rotatable supports, wherein the rotatable supports include two spherical elements having housings which are eccentric with respect to the rotation axis that join the centers of the spheres, and wherein the two spherical elements are positioned in a cylindrical housing having at least two parts, and wherein two rotation elements are connected to the two spherical elements and cause their independent rotation.
A method for the production of cast iron starting from pre-reduced iron ore DRI by means of an electric arc furnace EAF, comprising the following steps: a. preparing a charge of pre-reduced iron ore DRI having a metallization higher than 90% and containing over 2.8% by weight of carbon, wherein at least 80% of said carbon is combined with the iron to form iron carbide Fe3C, b. charging the charge of pre-reduced iron ore DRI into the electric arc furnace EAF, c. melting the DRI charge to form liquid cast iron wherein said liquid cast iron has a predetermined actual content of carbon, at least 80% by weight of said actual carbon content of the cast iron deriving from the carbon in the charge of pre-reduced iron ore DRI and wherein step c. is carried out in a reducing atmosphere and in a melting chamber of the electric arc furnace EAF subjected to a positive internal pressure generated by gases produced by reduction reactions that develop in step c.
A method for the production of cast iron starting from pre-reduced iron ore DRI by means of an electric arc furnace EAF, comprising the following steps: a. preparing a charge of pre-reduced iron ore DRI having a metallization higher than 90% and containing over 2.8% by weight of carbon, wherein at least 80% of said carbon is combined with the iron to form iron carbide Fe3C, b. charging the charge of pre-reduced iron ore DRI into the electric arc furnace EAF, c. melting the DRI charge to form liquid cast iron wherein said liquid cast iron has a predetermined actual content of carbon, at least 80% by weight of said actual carbon content of the cast iron deriving from the carbon in the charge of pre-reduced iron ore DRI and wherein step c. is carried out in a reducing atmosphere and in a melting chamber of the electric arc furnace EAF subjected to a positive internal pressure generated by gases produced by reduction reactions that develop in step c.
An apparatus for inspection of a hostile or harsh environment which is harmful or dangerous for human beings is provided. The apparatus has a plurality of image sensors positioned with different orientations with respect to each other, so as to detect image data or a plurality of images in sequence of the environment. The plurality of sensors detect contemporaneous image data of at least 60% of 4n steradians of the environment and are housed in a protective shell. The apparatus further comprises stable positioning means, destined for positioning the sensorized device always in a same, pre-determined position of the hostile or harsh environment during subsequent inspections. Also provided is a method for inspecting the environment using the apparatus to acquire image data in a predetermined position in the environment and compare with other sets of image data acquired at a different time to recognize pattern differences.
G01J 5/48 - ThermographyTechniques using wholly visual means
G01N 21/84 - Systems specially adapted for particular applications
G01N 23/00 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or
G01N 37/00 - Details not covered by any other group of this subclass
G03B 17/55 - Details of cameras or camera bodiesAccessories therefor with provision for heating or cooling, e.g. in aircraft
G03B 35/08 - Stereoscopic photography by simultaneous recording
G03B 37/04 - Panoramic or wide-screen photographyPhotographing extended surfaces, e.g. for surveyingPhotographing internal surfaces, e.g. of pipe with cameras or projectors providing touching or overlapping fields of view
64.
COMPACT BURNER WITH BOTH FUEL AND COMBUSTIVE AIR REGENERATION
A compact burner with both fuel and combustive-air regeneration (11) comprising: a refractory block (12), a metallic body (13) of the burner, internally coated with an insulating refractory layer (14), and an ignition device (15) with flame detection, wherein said refractory block (12) is positioned directly facing a combustion chamber of a furnace, wherein said metallic body (13) of the burner comprises a pair of regeneration units (16, 17) both coated by said insulating refractory layer (14), an intermediate refractory block (33) also being provided, which separates said pair of regeneration units (16, 17) and sealingly collaborates with said refractory block (12), said pair of regeneration units comprises an air- regeneration unit (16) and a fuel-regeneration unit (17) integrated with each other and supported in said metallic body (13), said air-regeneration unit (16) and fuel-regeneration unit (17) both being connected to a single combustion pre-chamber of the burner (29) positioned in said refractory block (12), wherein said combustion pre- chamber of the burner (29) is also connected to said ignition device (15) with flame detection interposed in said two units (16, 17), wherein said air-regeneration unit (16) and fuel-regeneration unit (17) are connected to said combustion pre-chamber of the burner (29) by means of at least one respective intermediate duct (30, 31) positioned in said refractory block (12).
Plant e method for regenerative combustion which burns low- calorific-value fuels in a furnace or combustion chamber (11) for high- temperature thermal processes at around 1200-1300°C, comprising at least one air-regeneration unit (12) and at least one regeneration unit of low-calorific-value fuel (13) for preheating air and low-calorific- value fuel before entering a control area of the furnace, wherein each of said regeneration units is positioned on a respective exhaust fume duct (12e,13e) at the outlet of the furnace and on an air-feeding duct (18a) and a feeding duct of low-calorific-value fuel (19a) at the inlet of the furnace, wherein each regeneration unit is periodically and selectively run in two different consecutive regeneration and combustion states, valves (12a, 13a, 12b, 13b) being envisaged on said ducts, downstream of said regeneration units in an open and/or closed arrangement depending on one of the two regeneration and combustion states selected and active, a post-combustion unit (14) is connected to a duct (13f), at the outlet of the fuel regeneration unit, which is fed by at least a part of regenerated fumes coming from a fume-regeneration valve (13a) at the outlet of said fuel-regeneration unit, said post-combustion unit being further fed by a certain quantity of air coming from a valve (14c) positioned on the air-feeding line (18) and by a certain quantity of fuel fed by a valve (13c) of the feeding line (19) of low-calorific-value fuel to complete the oxidation of the regenerated fumes coming from the fume-regeneration valve inside the post-combustion unit, said post-combustion unit being connected at the outlet to at least one heat exchanger (16a, 16b, 16c, 16d), wherein said control area comprises consecutive control areas (11a, lib, 11c, lid, etc.), each of said control areas comprising at least one air-regeneration unit and at least one regeneration unit of low- calorific-value fuel, wherein each of said fuel regeneration units is connected to said post-combustion unit.
F23G 7/06 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of specific waste or low grade fuels, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
F27B 17/00 - Furnaces of a kind not covered by any of groups
66.
METHOD AND APPARATUS FOR THE INSPECTION OR OPERATIONAL OBSERVATION OF DANGEROUS, HARSH SPACES OR SPACES WITH HOSTILE ENVIRONMENTAL CONDITIONS
Method and apparatus for the inspection of a hostile environment comprising a sensorized device (26) comprising in turn a plurality of image sensors (42, 44, 46, 48) positioned with different orientations with respect to each other, so as to detect image data of said hostile environment, a support (30) destined for supporting said device in said hostile environment, processing means of said image data for generating a spherical and/or three-dimensional image on the basis of said image data, a remote display device with respect to said sensorized device (26), destined for being positioned outside the hostile environment and in communication with at least the processing means of the image data, said apparatus is destined for said hostile environment which has temperature characteristics and/or atmospheric contaminants harmful or dangerous for human beings and in that said plurality of sensors having different orientations with respect to each other are sensors that detect contemporaneous image data of at least 60% of 4n steradians of said hostile environment.
G03B 35/08 - Stereoscopic photography by simultaneous recording
G03B 37/04 - Panoramic or wide-screen photographyPhotographing extended surfaces, e.g. for surveyingPhotographing internal surfaces, e.g. of pipe with cameras or projectors providing touching or overlapping fields of view
Equipment for grinding external rings of roller bearings includes a supporting pin of a bearing to be ground, a stop extending outwardly from the supporting pin for axial positioning of a side of the bearing, a sliding flange on the pin which can be positioned to rest on the other side of the bearing, a clamping nut which can be firmly positioned on a complementary portion of the pin, skids preloaded by springs situated on opposite sides of the bearing, and a guiding element on the opposite side of the stop, which receives a structure carrying a pair of contrast rolls movable to be engaged with the external ring of the bearing creating a radial force thereon, which can be predetermined and regulated by a maneuvering element to eliminate the clearance of the bearing in the radial direction. A machine for housing equipment of the above specified type.
B24B 5/04 - Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfacesAccessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces externally
A positioning of a spindle with micrometric forwarding control and tilting of its rotation axis, comprising a spindle shaft (11) rotatingly supported inside at least a pair of rotatable supports, wherein the at least pair of rotatable supports consists of two spherical elements (13,14) provided with respective housings (12), eccentric with respect to the axis (99), joining the centres of the same spheres, wherein the at least two spherical elements (13,14) are in turn positioned in a cylindrical housing composed of at least two parts (17,17'; 19, 20), two rotation means (23,24), connected to the two spherical elements (13,14) being envisaged, for determining their independent rotation.
A self-regenerating industrial burner including a head with which at least one first fuel injection nozzle, associable at an inlet with a fuel supplying group, and at least one pair of second nozzles, that can be alternatively and selectively passed through by combustion air and combustion exhaust gases, are associated; a tubular body open at opposite ends, arranged at a front part of the head and coaxial to the at least one first nozzle with an end close to the face of the head at which the first nozzle and the at least one pair of second nozzles protrude and the opposite end distant from the face. Each second nozzle includes at least one first tubular portion, radially lying outside the tubular body and defining at an end at least one first port, alternatively for exit of the combustion air and for inlet of the combustion exhaust gases.
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Ovens and furnaces; ovens and furnaces for industrial use;
induction, electric and gas ovens and furnaces; furnaces for
foundries; founding furnaces; melting ovens and furnaces;
ovens and furnaces for melting metals; ovens and furnaces
for metals recovering. Construction, installation, maintenance and repairing
services of ovens and furnaces. Design and development of ovens and furnaces; conducting of
technical feasibility studies relating to ovens and furnaces
construction; engineering services relating to ovens and
furnaces.
71.
Industrial furnace and process for controlling the combustion inside
Industrial furnace (1) which can be used for example for treating semi-finished and siderurgical products, metal and inorganic materials, comprising a) a hot chamber (3) in which a combustion takes place and the hot gases generated by the combustion come in direct contact with the materials to be treated (p) in the furnace itself; B) a combustion stabilizing system in turn comprising b1) an injection system in turn comprising at least a mixer (11) arranged to mix a fuel and a diluent before injecting them into the hot chamber (3). The diluent has the effect of reducing the amount of nitrogen oxides in the combustion products. It considerably reduces the consumption of required diluent and the Nox emissions in the fumes.
F23L 7/00 - Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
F27D 99/00 - Subject matter not provided for in other groups of this subclass
F23N 5/08 - Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements
F23C 9/08 - Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for reducing temperature in combustion chamber, e.g. for protecting walls of combustion chamber
F23N 5/16 - Systems for controlling combustion using noise-sensitive detectors
F27B 9/20 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatmentFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path
F27B 9/24 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatmentFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path being carried by a conveyor
F27B 9/40 - Arrangements of controlling or monitoring devices
72.
Equipment for measurement and control of load material or scrap feeding into a furnace and relative method
Equipment for the measurement and control of load material and scrap metal feeding into an electrical arc furnace includes an automatic control device for feeding control of load material or scrap according to the energy supplied to the bath, and a measuring device for the added load material, in correlation with the automatic control device, and a weighing device for the furnace shell, its contents and any other components it may support.
Equipment for the grinding of external rings of roller bearings, in particular for rolling mills, comprising a supporting pin (12) of a completely assembled bearing (11) to be subjected to grinding, a stop (13) which extends outwardly from the axis of the supporting pin (12) for the axial positioning of a side of the bearing (11), a sliding flange (15) on the pin (12) which can be positioned so as to rest on the other side of the bearing (11) inserted on the pin, and a clamping nut (16) which can be firmly positioned on a complementary portion of the pin (12), skids (17, 18) preloaded by springs (21, 82) situated on opposite sides of the bearing (11) also being envisaged, all of which guarantees the axial stability of both the internal ring (14) and also of rolling elements (19) and an external ring (20) of the bearing (11), allowing the external ring (20) to rotate on the rolling elements (19), a guiding element (23) also being envisaged on the opposite side of said stop (13) on the pin (12), which receives a structure (24) carrying a pair of contrast rolls (25, 26) which can be moved to be engaged with the external ring (20) of the bearing (11) creating a radial force thereon, which can be predetermined and regulated by means of a manoeuvring element (27) in order to eliminate the clearance of the bearing in said radial direction. A machine for housing equipment of the type specified above is also envisaged.
B24B 5/04 - Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfacesAccessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces externally
B24B 41/06 - Work supports, e.g. adjustable steadies
A machine for the grinding of external rings of roller bearings, in particular for rolling mills, comprising a base (41) which essentially carries a grinding group comprising a wheelhead (45) and a grinding spindle (48) for a grinder (32) and a supporting group of a bearing comprising supports (49,50; 51,52) for a roller bearing (11) to be ground, in said machine, an external ring (20) of said roller bearing (11) is positioned facing said grinder (32), and in said machine, there are two movable supports (49,50) in the supporting group of a bearing, activated by a control actuator (54), to each of which a supporting spindle (51,52) of a complete roller bearing (11) to be ground, is fixed, wherein each spindle is engaged- in a part of a hole of an inner ring (14) of the bearing (11), so as to support the roller bearing (11), wherein either the grinding group or the supporting group of a bearing is fixed and the other movable, and vice versa.
B24B 5/04 - Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfacesAccessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces externally
B24B 5/37 - Single-purpose machines or devices for grinding rolls, e.g. barrel-shaped rolls
75.
AUGER CONVEYOR ASSEMBLY FOR TRANSPORTING ELONGATED ARTICLES OF THE BAR TYPE, PIPE TYPE OR THE LIKE, CONVEYOR APPLIANCE FOR TRANSPORTING ELONGATED ARTICLES OF THE BAR TYPE, PIPE TYRE OR THE LIKE COMPRISING SUCH AUGER CONVEYOR ASSEMBLY AND PLANT FOR HEAT TREATMENT OF ELONGATED ARTICLES OF THE BAR TYPE, PIPE TYPE OR THE LIKE COMPRISING SUCH A CONVEYOR APPLIANCE
An auger conveyor assembly (10) for transporting elongated articles of the bar type, pipe type or the like along a transport direction (T2) substantially orthogonal to the longitudinal axis of said elongated articles (B), said auger conveyor assembly (10) being arrangeable downstream of a transferring and supplying assembly (11) for transferring and supplying a plurality of elongated articles (B) separated from one another and arranged with their longitudinal axis parallel to or coinciding with a first direction (Dl) and being characterised in that it comprises at least one pair of conveyor elements (13), which are arranged parallel to one another and spaced apart from one another and each of which comprises a shaft (14) that extends along a direction orthogonal to the first direction (Dl), is supported rotatably around its own axis (A) and is provided with a helical relief (15) that projects from its outer lateral surface (16) and that develops along at least one portion of its length between a first winding (17) for the entry of each elongated article (B) and a last winding (18) for the exit of each elongated article (B), wherein, when the auger conveyor assembly (10) is arranged downstream of the transferring and supplying assembly (11), the first winding (17) and the last winding (18) are respectively close to and distant from the transferring and supplying assembly (11), and, for each conveyor element (13) of at least one pair of conveyor elements (13), loading means (19) for loading the elongated articles (B), the loading means (19) being rigidly connected to the respective shaft (14) so as to rotate integrally with it and which, when the auger conveyor assembly (10) is arranged downstream of the transferring and supplying assembly (11), during the rotation of the respective shaft (14) are suitable for lifting or anyway collecting from the transferring and supplying assembly (11) each of the separated elongated articles (B) and for arranging it at the first groove (20) of the respective helical relief (15).
A self-regenerating industrial burner (10) comprising a head (11) with which at least one first fuel injection nozzle (12), that is associable at the inlet with a fuel supplying group (13), and at least one pair of second nozzles (14, 15), that can be alternatively and selectively passed through by the combustion air and by the combustion exhaust gases, are associated, a tubular body (16) open at the opposite ends, which is arranged, at the front part of the head (11) and coaxial to the at least one first nozzle (12) with an end close to the face of the head (11) at which the first nozzle (12) and the at least one pair of second nozzles (14, 15) come out or protrude and the opposite end distant from such a face, wherein, when the burner (10) is applied to a combustion chamber (101), in particular the chamber of an industrial furnace (100).
A self-regenerating industrial burner (10) comprising a head (11) with which at least one first fuel injection nozzle (12), that is associable at the inlet with a fuel supplying group (13), and at least one pair of second nozzles (14, 15), that can be alternatively and selectively passed through by the combustion air and by the combustion exhaust gases, are associated, a tubular body (16) open at the opposite ends, which is arranged, at the front part of the head (11) and coaxial to the at least one first nozzle (12) with an end close to the face of the head (11) at which the first nozzle (12) and the at least one pair of second nozzles (14, 15) come out or protrude and the opposite end distant from such a face, wherein, when the burner (10) is applied to a combustion chamber (101), in particular the chamber of an industrial furnace (100).
A method and apparatus closing a slag doorway and cleaning the slag doorway and channel of a metallurgical furnace including walls defining a slag doorway and a slag channel that crosses the slag doorway and has a bottom. The apparatus includes a support structure associable with the furnace, at least one slag-breaking body including a lower border that, under mounting conditions of the apparatus on the furnace, is directed towards the bottom and at a definable height, the slag-breaking body being associated with the support structure in a movable manner along the slag channel away and/or towards the slag doorway to wipe, with its lower border, the bottom or a parallel plane, and a vibrating or oscillating mechanism associated with the slag-breaking body to confer a vibrating or oscillating movement with non null component incident the bottom, during a travel performed during its movement away or towards the slag doorway.
Industrial furnace (1) which can be used for example for treating semi-finished and siderurgical products, metal and inorganic materials, comprising a) a hot chamber (3) in which a combustion takes place and the hot gases generated by the combustion come in direct contact with the materials to be treated (p) in the furnace itself; B) a combustion stabilising system in turn comprising bl) an injection system in turn comprising at least a mixer (11) arranged to mix a fuel and a diluent before injecting them into the hot chamber (3). The diluent has the effect of reducing the amount of nitrogen oxides in the combustion products. It considerably reduces the consumption of required diluent and the Nox emissions in the fumes.
C21D 9/00 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor
F23C 9/08 - Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for reducing temperature in combustion chamber, e.g. for protecting walls of combustion chamber
F23L 7/00 - Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
F23N 5/08 - Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements
F27D 99/00 - Subject matter not provided for in other groups of this subclass
80.
INDUSTRIAL FURNACE AND PROCESS FOR CONTROLLING THE COMBUSTION INSIDE
Industrial furnace (1) which can be used for example for treating semi-finished and siderurgical products, metal and inorganic materials, comprising a) a hot chamber (3) in which a combustion takes place and the hot gases generated by the combustion come in direct contact with the materials to be treated (p) in the furnace itself; B) a combustion stabilising system in turn comprising bl) an injection system in turn comprising at least a mixer (11) arranged to mix a fuel and a diluent before injecting them into the hot chamber (3). The diluent has the effect of reducing the amount of nitrogen oxides in the combustion products. It considerably reduces the consumption of required diluent and the Nox emissions in the fumes.
F23L 7/00 - Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
F23N 5/08 - Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements
F23C 9/08 - Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for reducing temperature in combustion chamber, e.g. for protecting walls of combustion chamber
A lamination cylinder includes a surface structure, on which a plurality of craters is defined having a different geometry and a random distribution. Some of the craters are partially superimposed with respect to each other.
A lamination cylinder having certain surface characteristics for allowing the cylinder to be advantageously used in rolling mills. The lamination cylinder comprises a surface on which a plurality of craters are defined. In one example, the craters have a different geometry and a random distribution along a helical path. In addition, some of the craters are partially superimposed with respect to each other. Moreover, the craters comprise craters having a circular conformation and craters having an oval conformation. The circular craters are partially superimposed with respect to the oval craters. The circular and oval craters may be obtained with a pulsed laser beam and the duration of the laser beam may vary to obtain craters having different dimensions and depths. The hardness of the surface may be increased such that the cylinder is adapted to tolerate longer lamination processes without loss of quality of a laminated product.
A machine for the surface treatment of a cylinder includes a first operative station for supporting the cylinder and for bringing it into rotation around its longitudinal axis, and at least a second operative station cooperating with the first station for generating and emitting, by means of an optical fiber apparatus, pulsed laser radiations randomly striking the surface of the cylinder and defining a desired roughness on the same surface; the second station being adjustably coupled with the first station in a first direction parallel with respect to the axis of the cylinder and carrying one or more pulsed laser radiation emitting heads, and slidingly assembled with respect to the cylinder in a second direction perpendicular to the axis of the cylinder.
A positioning apparatus (100,100′,100″) for steelmaking lances (300) of an electric arc furnace (200) comprising:—a supporting structure (150,150′) for a steelmaking lance intended to be introduced into said furnace (200) through an opening (230) of said furnace—a linkage (110;120;130;160) associated to said supporting structure (150,150′) and intended to position a carriage (115) linearly movable with respect to said linkage (110;120;130;160) wherein said linkage (110;120;130;160) is an articulated quadrilateral intended to cause said at least one steelmaking lance (330) to be moved from a parking position outside said electric arc furnace to an operating position wherein at least a part of said lance is inside said electric arc furnace and said positioning apparatus (100,100′,100″) further comprises rotation means to cause at least said carriage (115) to rotate about an axis (X) substantially vertical in the assembly condition.
F27B 3/22 - Arrangements of air or gas supply devices
C21C 5/52 - Manufacture of steel in electric furnaces
F27B 3/08 - Hearth-type furnaces, e.g. of reverberatory typeElectric arc furnaces heated electrically, e.g. electric arc furnaces, with or without any other source of heat
85.
APPARATUS FOR THE SURFACE ELECTROLYTIC TREATMENT IN CONTINUOUS OF METAL SEMI-FINISHED PRODUCTS, IN PARTICULAR FLAT METAL SEMI-FINISHED PRODUCTS
An apparatus (10) for the surface electrolytic treatment in continuous of metal semi-finished products, in particular flat metal semi-finished products, comprising a containment tank (12) containing an electrolytic solution (SE) and inside which a metal semi-finished product (11) is made to advance in continuous along an advancement plane, immersion means (31, 32, 33) for immersing the semi-finished product (11) in the electrolytic solution, at least one pair of electrodes (14) opposite to each other and between which the metal semi-finished product (11) is made to advance in continuous, wherein the pair of electrodes (14) comprises at least one first electrode (15) facing one of the two opposite plane faces of the advancement plane and at a defined distance from the metal semi¬ finished product (11) so as to define with it a first interspace (16) and at least one second electrode (17) facing the other one of the two opposite plane faces of the advancement plane and at a defined distance from the metal semi-finished product (11) so as to define with it a second interspace (18) and wherein the at least one pair of electrodes (14) is immersed in the electrolytic solution and is associable with an electric power supply group, inletting and agitation means (19) for inletting and agitating the electrolytic solution in the tank (12) which comprise at least one duct (20) arranged at at least one pair of electrodes (14) and provided with a delivery end (20a) facing one of the two opposite plane faces at respectively the first interspace (16) or the second interspace (18) and with a suction end (20b) that is opposite the delivery end (20a) and open and immersed in the electrolytic solution contained in the tank (12) and at least one inletting nozzle (21) for inletting electrolytic solution which is associable with feeding means (22) for feeding the solution and the outlet mouth (21a) of which is arranged at said suction end (20b) of the duct (20), wherein the suction end (20b) of the at least one duct (20) has a portion that is free from the at least one nozzle (21) and which is immersed in the electrolytic solution contained in the tank (12) and wherein the jet of electrolytic solution emitted by the nozzle (21) draws from the inside of the tank (12) an electrolytic solution current that enters into the duct (20) through the free portion of the suction end (20b), the jet and the current mixed together exiting from the delivery end (20a) at the first interspace (16) or the second interspace (18).
The present invention refers to a method for treating in continuous the surface of a laminate made of stainless steel that comprises at least the steps of: (a) subjecting said laminate to an electrolytic pickling treatment in alternating current, in an aqueous electrolytic solution comprising at least HCl and Fe3+ ions; (b) subjecting said electrolytically pickled laminate to a chemical pickling treatment in an aqueous chemical pickling solution comprising at least HCl and Fe3+ ions; (c) subjecting said chemically pickled laminate to a surface finishing and surface passivation treatment.
The present invention refers to a method for treating in continuous the surface of a laminate made of stainless steel that comprises at least the steps of: (a) making said laminate (11) pass in continuous in a tank (12) containing an aqueous electrolytic solution (SE) of sulfuric acid, said laminate (11) passing between at least two electrodes (150, 170) immersed in said electrolytic solution (SE) and arranged in a direction substantially parallel to the movement direction of the laminate (11) and having a length Le measured along said direction, said electrodes (150, 170) facing the opposite faces of said laminate (11) and being arranged in a position facing each other, (b) subjecting said laminate (11) to an electrolytic pickling treatment by applying an alternating current having a frequency f comprised between 5 Hz and 150 Hz, said frequency f being correlated to said forward velocity v of the laminate (11) and to said length Le of said electrodes (150, 170) by the relation F ≥ (A*v)/Le, where A is a rational number greater than 1, preferably greater than 2; (c) subjecting said electrolytically pickled laminate (11) to a surface finishing and a surface passivation treatment.
A plant (IM) and relative process for continuously feeding heated metallic material (5) to a melting furnace (1), according to which on at least one feeding line (L) defined by a conveyor (2) for continuously advancing said material (5) to said furnace (1), there is one pair (C) of operative modules (17', 17") defined by a first (17') and a second (17") operative feeding and heating module, said first (17') and second (17") operative modules being positioned in succession with respect to each other along said line (L); said first module (17') being suitable for forming and directly heating a first layer (5') of said material (5) arranged on said line (L), and said second module (17") being suitable for forming and directly heating a second layer (5") of said material (5) arranged superimposed with respect to said first layer (5').
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
Installations, machines and devices for the iron and steel and metallurgical industries; Installations, machines and devices for the surface treatment of metals; Installations, machines and devices for the surface treatment of laminating cylinders of metal; Installations, machines and devices for the surface treatment of cylinders for the paper industry; Installations, machines and devices for the surface treatment of bands of metal; Machines and devices for the surface treatment of sheets of metal. Installation, maintenance and repair of machines for the iron and steel and metallurgical industries. Metal treating. Design of metal-processing installations.
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
Installations, machines and devices for the iron and steel and metallurgical industries; Installations, machines and devices for the surface treatment of metals; Installations, machines and devices for the surface treatment of laminating cylinders of metal; Installations, machines and devices for the surface treatment of cylinders for the paper industry; Installations, machines and devices for the surface treatment of bands of metal; Machines and devices for the surface treatment of sheets of metal. Installation, maintenance and repair of machines for the iron and steel and metallurgical industries. Metal treating. Design of metal-processing installations.
91.
APPARATUS FOR CLOSING THE SLAG DOORWAY AND FOR CLEANING THE SLAG DOORWAY AND CHANNEL OF A METALLURGICAL FURNACE AND RELATIVE METHOD
The present invention refers to a method and an apparatus (10) for closing the slag doorway and for cleaning the slag doorway and channel of a metallurgical furnace (100) comprising walls in which a slag doorway (107) is defined and a slag channel (108) that crosses said slag doorway (107) and has a bottom (109), in which the apparatus (10) comprises a support structure (11) associable with the furnace (100), at least one slag-breaking body that is provided with a lower border that, under mounting conditions of the apparatus (10) on the furnace (100), is directed towards the bottom (109) and at a definable height with respect to it, in which the slag-breaking body is associated with the support structure (11) in a movable manner along the slag channel (108) away from and/or towards the slag doorway (107) in order to wipe, with its lower border, the bottom (109) or a plane parallel to it and vibrating or oscillating means (25) that are associated with the slag-breaking body in order to confer it a vibrating or oscillating movement with non null component incident the bottom (109), during at least one tract of the travel performed by it during its movement away from or towards the slag doorway.
Method and control and tracking system of the charge of material transported by a continuous supply conveyor of a metallurgical furnace, particularly an electric furnace for the production of steel
A method, control, and tracking system of a charge of material transported by a continuous supply conveyor of a metallurgical furnace, for example an electric furnace for production of steel. The continuous conveyor includes, in sequence starting from its inlet end towards its outlet end, a loading section of the charge of material to be supplied to the furnace, a preheating section of the charge of material loaded, and an introduction section into the furnace of the preheated charge of material, and along the loading section at least a first loading station of material.
F27D 21/00 - Arrangement of monitoring devicesArrangement of safety devices
93.
Panel cooled with a fluid for metallurgic furnaces, a cooling system for metallurgic furnaces comprising such a panel and metallurgic furnace incorporating them
A panel cooled with a fluid, for metallurgic furnaces, includes a first chamber having a face which, in assembly conditions, is configured to face an interior of a metallurgic furnace and an opposite face in thermal contact with a face of a second chamber whose opposed face is configured to face, in assembly conditions, an external part of the metallurgic furnace. The first and second chambers are mutually independent. The first and second chambers each include an inlet and outlet of a cooling fluid. The panel has a first working configuration in which the first chamber is passed by a first cooling fluid and the second chamber is passed by a second cooling fluid different from the first cooling fluid, and a second working configuration in which the first chamber is passed by the second cooling fluid and the second chamber is passed by the first cooling fluid.
A machine (M) for the surface treatment of a cylinder (C), comprises a first operative station (MA) for supporting said cylinder (C) and bringing it into rotation around its own longitudinal axis (X), and at least a second operative station (MB) cooperating with said first station (MA) for generating and emitting, by means of an optical fibre apparatus, pulsed laser radiations randomly striking the surface (S) of said cylinder (C) and defining a desired roughness on the same surface (S); said second station (MB) being adjustably coupled with said first station (MA) in a first direction (K) parallel with respect to the axis (X) of said cylinder (C) and carrying one or more pulsed laser radiation emitting heads (8), and slidingly assembled with respect to said cylinder (C) in a second direction (Z) perpendicular to said axis (X).
A machine (M) for the surface treatment of a cylinder (C), comprises a first operative station (MA) for supporting said cylinder (C) and bringing it into rotation around its own longitudinal axis (X), and at least a second operative station (MB) cooperating with said first station (MA) for generating and emitting, by means of an optical fibre apparatus, pulsed laser radiations randomly striking the surface (S) of said cylinder (C) and defining a desired roughness on the same surface (S); said second station (MB) being adjustably coupled with said first station (MA) in a first direction (K) parallel with respect to the axis (X) of said cylinder (C) and carrying one or more pulsed laser radiation emitting heads (8), and slidingly assembled with respect to said cylinder (C) in a second direction (Z) perpendicular to said axis (X).
A calibration device for gauges for the measurement of the geometrical characteristics of cylinders, such as the diameter, profile, rotundity and eccentricity errors, wherein such gauges include a pair of movable opposing arms equipped with feelers or sensors at their free ends, includes a pair of abutments reciprocally approachable and/or withdrawable by means of motors until a sample measure is obtained, as desired, within the measuring range of the gauge, on which the calibration device is assembled, revealed by means of measuring means cooperating with the abutments, such that consequently the feelers or sensors are respectively abutted or approached to the abutments to reveal the sample measure.
G01B 11/08 - Measuring arrangements characterised by the use of optical techniques for measuring diameters
G01B 5/08 - Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
B24B 49/04 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or workArrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent involving measurement of the workpiece at the place of grinding during grinding operation
G01B 3/30 - Bars, blocks, or strips in which the distance between a pair of faces is fixed, although it may be preadjustable, e.g. end measure, feeler strip
G01B 5/20 - Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures
G01B 21/04 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
Installations, equipments and machinery for the
metallurgical industry. Furnaces for the production of molten metals. Installation, maintenance and repair of machinery for the
metallurgical industry. Treatment of materials. Technical project design services of plants for the
treatment of metals.
98.
APPARATUS AND METHOD FOR POSITIONING LANCES OF ELECTRIC ARC FURNACE, ELECTRIC ARC FURNACE COMPRISING SUCH APPARATUS
The present invention relates to a positioning apparatus (100,100',100") for steelmaking lances (300) of an electric arc furnace (200) comprising: - a supporting structure (150,150') for a steelmaking lance intended to be introduced into said furnace (200) through an opening (230) of said furnace - a linkage (110;120;130;160) associated to said supporting structure (150,150') and intended to position a carriage (115) linearly movable with respect to said linkage (110;120;130;160) wherein said linkage (110;120;130;160) is an articulated quadrilateral intended to cause said at least one steelmaking lance (330) to be moved from a parking position outside said electric arc furnace to an operating position wherein at least a part of said lance is inside said electric arc furnace and said positioning apparatus (100,100',100") further comprises rotation means to cause at least said carriage (115) to rotate about an axis (X) substantially vertical in the assembly condition; further aspects of the inventions are also a system and a method for steelmaking.
C21C 5/52 - Manufacture of steel in electric furnaces
F27B 3/08 - Hearth-type furnaces, e.g. of reverberatory typeElectric arc furnaces heated electrically, e.g. electric arc furnaces, with or without any other source of heat
F27B 3/22 - Arrangements of air or gas supply devices
99.
Continuous feeding system to a smelting furnace of pre-heated metal material, in continuous, potentiated and combined form
A process for heating a metal feedstock (31) fed in continuous to a smelting furnace (30) through a second horizontal heating section (34) through which hot discharge fumes collected from said furnace (30) pass, said fumes exerting a heating phase of said feedstock (31), characterized in that, immediately before entering said second heating section (34), the feedstock (31) is subjected to a preheating phase by heating means other than the discharge fumes collected from the smelting furnace (30). In a plant for the embodiment of said process, said different heating means are envisaged inside a first preheating section (33), which is operatively connected with said second heating section (34) by means of an intermediate fume evacuation section (35), the fumes coming from said sections (33) and (34) being conveyed to said section. Said sections (33, 34) preferably have a tunnel configuration.
F27D 3/00 - ChargingDischargingManipulation of charge
C21C 5/52 - Manufacture of steel in electric furnaces
F27B 3/08 - Hearth-type furnaces, e.g. of reverberatory typeElectric arc furnaces heated electrically, e.g. electric arc furnaces, with or without any other source of heat
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
Installations, equipment and machinery for the metallurgy industry, namely, continuous scraps loaders for use in iron and steel mills, flues being structural parts for iron and steel rolling mills, [ industrial robots for use in iron and steel mills, stands being structural parts for mills for pouring liquid metal for use in iron and steel mills, ] conveyors for feeding industrial melting furnaces for use in iron and steel mills, and conveyors for use in liquid metal mills [ Furnaces for the production of molten metals ] [ Installation, maintenance and repair of machinery for the metallurgical industry ] [ Treatment of materials, namely, treatment of metals in the nature of treatment of metallic scraps, melting of metals, metal fabrication and finishing services for others, treatment of metals by heat, namely, by means of electric furnaces, all of the aforementioned services excluding the processing, liquefaction, storage and supply of natural gas ] Technical project design services of plants for the treatment of metals
