A device (1) for drying and/or preheating metallic and/or non-metallic materials, preferably scrap, comprises a receiving container (3) and a scrap basket (7) which is arranged in the receiving container (3) and has a gas-permeable bottom area (9). The receiving container (3) has at least one process gas inlet line (6) in its wall (4), via which a process gas with a temperature in the range from 200 to 1600 C can be introduced into the receiving container (3), and at least an injector nozzle (19) arranged coaxially within the at least one process gas inlet line (6) via which a cooling gas can be introduced into the process gas.
C22B 1/00 - Preliminary treatment of ores or scrap
C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
F26B 21/14 - Arrangements for supplying or controlling air or gases for drying solid materials or objects using gases or vapours other than air or steam
F27D 13/00 - Apparatus for preheating chargesArrangements for preheating charges
F27D 17/00 - Arrangements for using waste heatArrangements for using, or disposing of, waste gases
The present application relates to a method for recycling lithium-containing electrochemical energy storage devices, more particularly cells and/or batteries, wherein: i) the electrochemical energy storage devices are first comminuted and a fraction comprising an active material is removed from the comminuted matter, the fraction comprising active material having carbon (C), lithium (Li) and at least one of the elements selected from the series comprising cobalt (Co), manganese (Mn), nickel (Ni), iron (Fe) and/or combinations thereof; ii) the fraction comprising active material is subsequently fed to a melt-down unit and is melted down in the presence of slag-forming agents, so that a molten slag phase and a molten metal phase are formed; and iii) then the lithium (Li) contained in the molten slag phase and/or molten metal phase is converted into a gas phase by the addition of a fluorinating agent and the carbon (C) is converted into a gas phase by the addition of an oxygen-containing gas, and said lithium and carbon are withdrawn from the process as discharge gas.
The present invention relates to a method for the pyrometallurgical smelting of metal-containing raw materials, waste materials and/or secondary waste materials (M), wherein these are fed in shredded form to a smelting unit (1) which comprises a smelting zone (6), a main reaction zone (7) and a secondary reaction zone (8) and are smelted in the presence of an oxidizing, reducing and/or inert gas and/or gas mixture (G), such that a liquid melt phase (9), a liquid slag phase (10) and a gas phase are formed, wherein the oxidizing, reducing and/or inert gas and/or gas mixture (G) is supplied in compressed form via at least one injector (11) and is expanded adiabatically within the smelting unit (1) and is then injected as adiabatically expanded gas and/or gas mixture into the liquid slag phase (10).
The present invention relates to a method and a smelting unit (1) for the pyrometallurgical smelting of metal-containing raw materials, waste materials and/or secondary waste materials (M) in the presence of an oxidizing, reducing and/or inert gas (G).
The invention relates to a method for pre-shaping sheet metal (1) in strip- or panel-form having a flat cross-sectional profile into a circular arc-shaped cross-sectional profile, in a pre-shaping section (3) of a plant for producing open-seam pipes, wherein the circular arc-shaped cross-sectional profile is provided to the sheet metal (1) in the pre-shaping section (3) by means of roll profiling in a plurality of successive bending steps in a transport direction, wherein the cross-sectional profile is created by step-by-step bending of individual circular arc portions (8) from an outer edge of the sheet metal (1) toward a centre line (7) such that the individual circular arc portions (8) directly adjoin one another or at least partially overlap. The invention further relates to a device for carrying out the method.
B21C 37/08 - Making tubes with welded or soldered seams
B21D 5/00 - Bending sheet metal along straight lines, e.g. to form simple curves
B21D 5/12 - Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles for making tubes making use of forming-rollers
6.
DEVICE AND METHOD FOR HANDLING MANDREL RODS IN A TUBE ROLLING MILL
Device (10) for handling mandrel rods (3) in a rolling plant (1) that has a rolling mill (20) for rolling seamless tubes (2'), the device (10) comprising: a push pointer (11) which is designed to move a mandrel rod (3) situated in a rolling line (L) in a rolling direction (R) such that the mandrel rod (3), starting from an initial state, can be pushed into a tube blank (2) situated upstream of the mandrel rod (3) in the rolling direction (R); a retaining device (12) having a fixing unit (12a) that is movable along the rolling line (L) and is designed to temporarily hold the mandrel rod (3) at an action point (3c) in the region of the rear end (3b) of the mandrel rod (3) and to carry out a working stroke, starting from a starting position (xA), in the rolling direction (R) and counter to the rolling direction (R), as a result of which the mandrel rod (3) can be inserted into the rolling mill (20) in the rolling direction (R) and pulled out of the rolling mill (20) counter to the rolling direction (R) by the retaining device (12); characterised in that the retaining device (12) is configured such that the starting position (xA) of the fixing unit (12a) in the initial state is between the two ends (3a, 3b) of the mandrel rod (3).
The present invention relates to a method for obtaining non-ferrous metals, in particular black and/or raw copper, from scrap containing organic matter (8), comprising the steps: i) providing a melting reactor (2), wherein the melting reactor (2) is configured such that it has at least one melting region (5), a combustion region (6) and a pyrolysis region (7), ii) supplying the melting reactor (2) with a mixture comprising the scrap containing organic matter (8) such that it first passes through the pyrolysis region (7) and the combustion region (6) before it reaches the melting region (5), and is at least partially pre-pyrolyzed and/or combusted, such that an energy-containing gas stream (9) is formed, iii) transferring the energy-containing gas stream (9) into a thermal post-combustion chamber (3), in which the energy-containing gas stream (9) is completely combusted and the thermal energy released during combustion is carried off via an energy recovery unit (11), and iv) melting the scrap containing organic matter (8) at least part of which has been pre-pyrolized and/or combusted.
The present invention relates to a method for obtaining metals of the 8th to 14th group, in particular raw copper, comprising the steps of: i) providing and melting down a mixed feed comprising electronic waste in a smelting reactor, so that a first melt with a first metallic phase and a first slag phase is formed, ii) separating out the first slag phase from the smelting reactor, iii) refining the remaining first metallic phase by means of an oxygen-containing gas, possibly with the addition of copper-containing remains, so that a second, copper-enriched slag phase is formed, iv) possibly separating off the second slag phase and repeating the step, v) separating off the refined first metallic phase from the smelting reactor, and vi) adding a further mixed feed comprising electronic waste into the remaining second, copper-enriched slag phase and repeating process steps i) to vi).
The invention relates to a gas injection device (1) for introducing a process gas into a non-iron molten metal and/or slag, in particular molten copper and/or copper slag, comprising a hollow cylindrical lance (2) which is made of a refractory material and/or graphite, preferably a lance which consists of a refractory material and/or graphite, wherein the lance (2) has an inlet opening (5) for the process gas and a gas injection module (9, 23, 27) which is connected to the hollow cylindrical lance (2) and is made of a refractory material and/or graphite, preferably a gas injection module which consists of a refractory material and/or graphite, comprising at least one outlet opening (12) for the process gas, and the outlet opening (12) comprises at least one element (13) which is made of a ceramic material and through which a gas can flow and the process gas is introduced into the molten metal.
The invention relates to a method for producing liquid pig iron, comprising the following steps: i) providing a directly reduced iron product (1) (DRI product) with an iron content of at least 75.0 wt.%, a carbon content of at least 0.10 wt.% and a content of acids and basic slag components, selected from the group comprising CaO, SiO2, MgO and AI2O3, of max. 15.0 wt.%; ii) supplying the DRI product (1), adding slag formers (2), into an electrically operated smelting unit (3); iii) optionally supplying further iron and/or carbon components (5) into the electrically operated smelting unit (3); iv) smelting the DRI product (1) and optionally the further iron and/or carbon components (5) in the presence of the slag former (2), such that a liquid pig iron phase (6) and a liquid slag phase (7) are formed; v) adjusting the slag phase (7) in such a way that it has a basicity of (CaO+MgO/SiO2) from 0.95 to 1.5; vi) tapping the liquid pig iron phase (6); and vii) tapping and granulating the slag phase (7).
The invention relates to a device (1) for the internal welding of pipes and profiles, comprising a cantilever arm (2, 2a), which is secured to a suspension (3), which cantilever arm can be inserted into the pipe or profile to be welded and on which a welding head (4) is displaceably attached, the cantilever arm (2, 2a) further comprising at least one laser (5) and at least one camera (6). To avoid the disadvantageous effects of magnetism and heat on the position of the welding head (4), the invention proposes that a laser (5) is attached on the suspension (3), and a camera (6) for observing the laser beam (5a) is attached on the end of the cantilever arm (3) or on the welding head (4). A correction signal is calculated from the change in position of the laser beam (5a) observed with the camera (6) and forwarded to a control unit for adjusting the welding head (4) by means of displacement devices (8, 9).
The invention relates to a method for preparing raw kaolin (R) in a milling and separating device (1) which has a milling section (13) and a first separating section (16). The raw kaolin (R) is a material mixture of at least kaolin as a first fraction (F1) and a second fraction (F2) which comprises at least quartz. The raw kaolin (R) is supplied to the milling section (13), in which the first fraction (F1) is at least partly removed from the raw kaolin (R) by means of a grinding process, and the first fraction (F1) is then separated from the second fraction (F2) in the first separating section (16).
The invention relates to a roll stand (10), wherein at least two rolls (7, 8) for forming a workpiece are accommodated in the stand, and wherein a rolling force acting during the forming is supported by the roll stand (10), wherein the roll stand (10) is produced by means of additive manufacturing.
Melting furnace (1), in particular for producing metal alloys by melting alloying constituents, comprising a melting crucible (10), a cylindrical electrode rod (40) with a consumable electrode (41) attached thereto and a power supply (50), which is designed to supply power to the electrode (41) via the electrode rod (40), wherein the electrode rod (40) is rotatable about its own axis and movable along its own axis during the melting process.
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
The invention relates to a method for producing lithium hydroxide, for use in batteries and/or accumulators, from lithium-containing ore, mineral and/or earths. The aim of the invention is to provide a method by which highly pure lithium hydroxide may be produced using a chlor-alkali electrolysis. In a calcining and leaching step, a lithium chloride solution is produced, the lithium-containing ores, minerals and/or earths first being roasted, one or more metal chlorides and/or a mixture of metal chlorides being used, and then leached out, water being used, then a highly pure lithium chloride solution being produced in a subsequent purification step, the solution being purified by removing cations, such as sodium, potassium, calcium, magnesium, and/or iron, and then lithium hydroxide being produced in a subsequent electrolysis step, the highly pure lithium chloride solution being subjected to a membrane electrolysis process, which produces chlorine gas and hydrogen as byproducts.
= . .AbstractA method for producing high-purity lithium hydroxide, for use in batteries and/or accumulators, from lithium-containing ore, minerals, and/or lithium-containing earths (1) whereby chloroalkali electrolysis is performed. In a chlorination step (A) a lithium chloride solution (2) is produced, wherein initially, the lithium-containing ores, minerals and/or earths (1) are chlorinated using chlorine gas (5), and subsequently, are leached out with the use of water. In a subsequent purification step (B), a high-purity lithium chloride solution (3) is generated, wherein the lithium chloride solution (2) is purified by removing cations, such as sodium, potassium, calcium, magnesium and/or iron, from the lithium chloride solution (2). In a subsequent electrolysis step (C), high-purity lithium hydroxide, is then produced, wherein the high-purity lithium chloride solution (3) is subjected to a membrane electrolysis generating chlorine gas (5) and hydrogen as by-products.CA 3054747 2021-01-18
The invention relates to a method and to a device for cleaning slag from a production process for non-ferrous (NE) metal or iron alloy. For this purpose, the slag arising in said production processes is typically continuously conducted into a settling furnace and is heated and metallurgically treated there. In order to improve the environmental friendliness of the first residual slag resulting from this treatment, the first residual slag, according to the invention, is tapped into a ladle (120), the composition of the first residual slag is analyzed, and finally, at least one gaseous medium is introduced onto or into the first residual slag for metallurgical-physical reaction to form a second residual slag in the ladle. The gaseous medium is selected in accordance with the analyzed individual composition of the first residual slag. In addition, the slag can optionally be heated. Thereafter, transport into a second settling furnace (140) and settling of the metal particles finely distributed in the slag in said second settling furnace are optionally performed.
The present invention relates to a method for predicting, controlling and/or regulating steelworks processes, comprising the steps of monitoring at least two input variables related to a target variable, determining the relationship between the at least two input variables and at least one target variable by means of regression analysis or classification methods, and using the determined target variable for predicting, controlling and/or regulating the steelworks process.
The present invention relates to a cooling device for a smelting furnace, particularly for cooling a liquid slag (S) in a reduction furnace. In that case the device comprises a lining (3) for lateral screening of a liquid metal melt bath (M) and a liquid slag (S) present thereon, as well as a metal plate (5), which is arranged on a side of the lining (3) remote from the metal melt bath (M) and the slag (S). The metal plate (5) has a plurality of substantially vertically oriented, mutually adjacent slots (13), wherein a respective one of the copper plates (7) extends into the lining (3) through each of the slots (13) substantially perpendicularly to the metal plate (5) and the device further comprises cooling channels (9), which can be flowed through by coolant and which are each arranged between two mutually adjacent slots (13) and the cooper plates (7), which extend through these slots (13), on the side of the metal plate (5) remote from the metal melt bath (M) and the slag (S). The invention is additionally directed to a furnace comprising the cooling device and to a method for producing such a cooling device or such a furnace.
The invention relates to an ultrasonic nozzle for use in metallurgical installations, in particular for the top blowing of oxygen in a Basic Oxygen Furnace (BOF) or an electric arc furnace (EAF), comprising a convergent portion and a divergent portion, which are adjacent to each other at a nozzle throat (DK), wherein the ultrasonic nozzle is defined by the following group of nozzle forms in the respective design case thereof: (T1)
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