Provided in an electric furnace facility comprising: a melting chamber for melting a metal raw material; and an electrode inserted into the melting chamber from above. In the electric furnace facility, the metal raw material charged in the melting chamber is dissolved by an arc generated from the electrode. Also provided is a height profile creation device for a metal raw material, said device being characterized by comprising: a 2D or higher range-finding radar provided at a position where a top surface position of the metal raw material in the electric furnace facility can be measured; and a computation unit that calculates the height profile of the metal raw material on the basis of data on the top surface position measured by the range-finding radar.
The present invention provides a pressing plate and an edge folding device that can suppress an occurrence of tearing and wrinkling of packaging paper. The pressing plate is attached to an arm distal end of an articulated robot provided to an edge folding device that performs edge folding of an end surface covering portion of a packaging material for packaging a metal strip coil, said portion covering an axial end surface of the metal strip coil. The pressing plate is used to press the end surface covering portion against the axial end surface of the metal strip coil. An outer edge of a portion of the pressing plate corresponding to a leading side in a travel direction which is a direction toward which the pressing plate is moved when a fold of a valley fold is formed in the packaging material is chamfered on a side of a pressing surface that contacts the packaging material, hence is suitable for smoothly forming the fold up to a vicinity of the outermost peripheral portion of the metal strip coil without damaging the packaging material when the valley fold is formed. In plan view, the pressing plate has an asymmetrical protruding shape in a left-right direction with respect to the travel direction in plan view so that no portion other than the distal end portion in the travel direction reaches the outermost peripheral portion of the metal strip coil and all apex portions including the distal end portion are rounded.
Provided are a metal coil inner peripheral packaging material mounting device which has a simple structure and can be made compact, and a metal coil inner peripheral packaging material mounting method. This inner peripheral packaging material mounting device for mounting a packaging material on an inner peripheral surface of a coil of a metal thin plate comprises: a cylindrical mandrel; a packaging material restraining device configured to be capable of holding the packaging material on the mandrel in a state in which the mandrel has been inserted into the packaging material wound in a cylindrical shape, and switching between a holding state in which the packaging material is held on the mandrel and a released state in which the holding of the packaging material is released; and a mandrel drive device configured to be capable of supporting one end of the mandrel and rotating the mandrel once along the inner peripheral surface of the coil.
B65B 11/02 - Enveloppement d'objets ou de quantités de matériaux sans changer leur position durant l'opération, p. ex. dans des moules avec des plieurs à charnières
B65B 25/14 - Emballage de papier ou feuilles analogues, enveloppes ou journaux, à plat, pliés ou roulés
4.
DEVICE FOR DETERMINING TIMING OF ADDITIONAL CHARGING, MELT FACILITY, AND METHOD FOR DETERMINING TIMING OF ADDITIONAL CHARGING
In order to determine the timing for additional charging of a metal raw material into a furnace body into which the metal raw material is charged and which melts the metal raw material with an arc generated by an electrode inserted from above, the present invention provides a determination device comprising: a bucket raw-material-height measurement device for measuring the height of the metal raw material in a bucket; and a computing device provided with a mathematical model that, on the basis of the measurement result by the bucket raw-material-height measurement device, calculates a bucket raw material bulk volume, which is the bulk volume of the metal raw material in the bucket, that uses at least a voltage measurement value and a current measurement value to calculate the energy amount input for melting the metal raw material in the furnace body, that calculates a theoretical molten component bulk volume, which is the theoretical value of the bulk volume of the metal raw material that will be melted by the energy amount, and that uses the theoretical molten component bulk volume to calculate a chargeable bulk volume, which is the estimated value of the bulk volume of the metal raw material that can be charged into the furnace body, said computing device being configured to determine the timing for additional charging of the metal raw material on the basis of the result of comparing the chargeable bulk volume and the bucket raw material bulk volume and to output the result of the determination. Also provided is a determination method which uses the determination device.
Provided are a heating-type sintering machine and a heating-type sintering method capable of achieving a reduction in the quantity of emission of carbon dioxide (CO) during a sintering process. A heating-type sintering machine 1 according to the present invention comprises a conveyance device 5 that moves at a prescribed speed, and a sintering device 3 that includes: a feedstock introduction device 7 that is provided above the conveyance device 5 and is configured so as to introduce a sinter feedstock from above the conveyance device 5 at a prescribed supply amount formed by a feedstock layer 10, which has a thickness within a prescribed range, on the conveyance device 5 that moves at the prescribed speed; and a feedstock layer heating device 9 that is provided downstream of the feedstock introduction device 7 in the conveyance direction of the conveyance device 5 and is configured so as to heat and sinter the entirety of the feedstock layer 10 in the height direction.
The present invention provides an air supply/exhaust device for a sintered ore cooling machine, the air supply/exhaust device being capable of preventing leakage of a gas or dust from a sealed portion between a trough carriage and a hood to the outside of the system even in cases where a gap is formed between the trough carriage and the hood due to long-term deterioration or the like. An air supply/exhaust device 3 for a sintered ore cooling machine 1 according to the present invention is used for a sintered ore cooling machine 1 which cools sintered ores 15 by causing a cooling gas to pass through layers of the sintered ores 15 stacked on a plurality of trough carriages 5 that are covered by a hood 13. This air supply/exhaust device 3 is provided with: a cooling gas pressure feed device 7 which feeds the cooling gas below the plurality of trough carriages 5; an exhaust gas suction device 9 for discharging the exhaust gas from a space covered by the hood 13 to the outside; and a control device 11 which controls at least one of the cooling gas pressure feed device 7 and the exhaust gas suction device 9 so that the flow rate of the cooling gas is lower than the flow rate of the exhaust gas.
KANAGAWA INSTITUTE OF INDUSTRIAL SCIENCE AND TECHNOLOGY (Japon)
JP STEEL PLANTECH CO. (Japon)
Inventeur(s)
Hosoi, Atsushi
Kawada, Hiroyuki
Harada, Kazuki
Jespersen, Kristine Munk
Abrégé
A fracture toughness testing machine evaluates fracture toughness of a specimen in pure mode. The testing machine includes: a testing-load applying device for applying a predetermined testing load to the specimen, in which the stresses are present; and a cancelling-load applying device for applying a cancelling load to the specimen to cancel the stresses therein. The cancelling-load applying device includes: a pressing-force applying portion that applies a pressing force to the specimen as the canceling load; and a pressing-force determining portion that determines magnitude of the force. The pressing-force determining portion calculates the magnitude of the force using pre-stored equations so that an energy release rate related to in-plane shear mode crack deformation becomes zero.
G01N 3/08 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique par application d'efforts permanents de traction ou de compression
G01N 3/24 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant des efforts permanents de cisaillement
G01N 19/04 - Mesure de la force d'adhérence entre matériaux, p. ex. du ruban adhésif, d'un revêtement
A roof facility for covering a pile of raw material put in a raw material yard, the roof facility comprising a roof including a plurality of roof bodies that are independent of each other so that each is movable individually, and a crane configured to be capable of lifting and moving each of the plurality of roof bodies, wherein the roof facility is characterized by being capable of partially opening and closing the roof by moving at least one of the plurality of roof bodies using the crane as needed.
E04B 1/34 - Structures particulières, p. ex. avec des parties suspendues ou en encorbellement supportées par des poteaux ou des structures analogues à des tours, renfermant des ascenseurs ou des escaliersConstructions en généralStructures qui ne sont limitées ni aux murs, p. ex. aux cloisons, ni aux planchers, ni aux plafonds, ni aux toits caractéristiques relatives à la stabilité élastique
E04B 1/343 - Structures caractérisées par des parties mobiles, séparables ou repliables, p. ex. pour le transport
This melting equipment, for melting metal raw materials by means of an arc formed by passing current through an arc electrode, is provided with: a furnace main body in which the metal raw materials to be melted are charged; a primary preheating chamber which is configured to be capable of storing the metal raw materials and has a charge port for charging the metal raw materials into the furnace main body, and which preheats the metal raw materials by means of an exhaust gas introduced from the furnace main body through the charge port; a pusher which comprises a pressing member and a pressing member drive device which causes the pressing member to reciprocate in the primary preheating chamber, and which presses the metal raw materials from the primary preheating chamber into the furnace main body by moving the pressing member towards the charge port; and a preheating tunnel which is provided with a transport device that is connected to the primary preheating chamber and that horizontally transports the metal raw materials in a position above the bottom edge of the charge port of the primary preheating chamber, and which, by means of the transport device, supplies the metal raw materials to the primary preheating chamber while preheating the metal raw materials by means of the exhaust gas.
Provided is a cooler for sintered ore capable of effectively cooling the sintered ore through the entire layer without using water for cooling. In a cooler (1) for sintered ore according to the present invention, a sintered ore (5) sintered by a sintering machine is layered on a trough trolley (3) and the sintered ore (5) is continuously cooled while moving the trough trolley (3), the cooler comprising: a lower cooling apparatus (27) for performing lower air-supply cooling by passing the air from below upward in the layer of the sintered ore (5), and an upper cooling apparatus (29) for performing upper air-supply cooling by discharging a cooling gas onto the upper surface of the sintered ore (5), wherein the upper cooling apparatus (29) has a hollow discharge unit (34) that is provided with a discharge port (37) for the cooling gas and arranged above the trough trolley (3) so that the discharge port (37) and the upper surface of the sintered ore (5) face each other, and a cooling gas supply device (36) that is connected by a duct (35) to the discharge unit (34) and supplies the cooling gas to the discharge unit (34) through the duct (35) at a positive pressure.
The present invention provides a magnesium hydride production device, which is suitable for the mass production of magnesium hydride, etc. The magnesium hydride production device (10) comprises: a tubular production furnace (20) in which magnesium is reacted with hydrogen to produce magnesium hydride; a first chamber (21) which is connected to a first end of the production furnace (20) and in which magnesium to be supplied into the production furnace (20) is heated; and a second chamber (22) which is connected to a second end of the production furnace (20) and in which magnesium hydride produced in the production furnace (20) is cooled.
This three-phase alternating current arc furnace for melting solid metal raw materials with an arc, said furnace comprising: a furnace body in which a solid metal raw material is charged and which has a cylindrical upper furnace shell and lower furnace shell; three electrodes for forming an arc inside the furnace body; an electrode lifting and driving device for lifting and driving each of the three electrodes separately; and a water-cooled panel provided on the inner circumference of the upper furnace shell. The water-cooled panel includes a first portion provided in a first region, which is a region close to the three electrodes out of the whole circumference of a virtual circle substantially coincident with the shape of an inner wall upper edge of the lower furnace shell in plan view, and a second portion provided in a second region, which is a region, out of the whole circumference of the virtual circle in plan view, where the distance to a point on the virtual circle from the three electrodes is further than in the first region. The three-phase alternating current arc furnace further comprises a temperature detection unit for detecting at least one of the temperature of the first portion of the water-cooled panel and the temperature of the cooling medium flowing in the first portion, and a control device for controlling the electrode lifting and driving device on the basis of the temperature detected by the temperature detection unit.
KANAGAWA INSTITUTE OF INDUSTRIAL SCIENCE AND TECHNOLOGY (Japon)
JP STEEL PLANTECH CO. (Japon)
Inventeur(s)
Hosoi, Atsushi
Kawada, Hiroyuki
Harada, Kazuki
Jespersen, Kristine Munk
Abrégé
When there is thermal residual stress in a test piece obtained by joining different types of materials, a fracture toughness testing device 10 according to this invention is capable of evaluating the fracture toughness of the test piece in a pure mode in which the effect of the thermal residual stress has been removed. This fracture toughness testing device 10 comprises a testing load application means 17 for applying a prescribed testing load to a test piece 11 having thermal residual stress and a cancelling load application means 18 for applying a cancelling load to the test piece 11 so as to cancel the thermal residual stress of the test piece 11. The cancelling load application means 18 comprises a pressing force application unit 23 for operating so as to apply a pressing force to the test piece 11 as the cancelling load and a pressing force determination unit 24 for determining the magnitude of the pressing force. The pressing force determination unit 24 uses a formula that has been stored in advance to calculate a pressing force magnitude for making an energy release rate component corresponding to an in-plane-shear-type crack deformation state zero.
G01N 3/00 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique
G01N 3/08 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique par application d'efforts permanents de traction ou de compression
14.
COKE DRY QUENCHING FACILITY AND OPERATION METHOD FOR COKE DRY QUENCHING FACILITY
Achieved are a coke dry quenching facility and an operation method for a coke dry quenching facility, which can shorten a charging cycle time while adopting a traverser method. A coke dry quenching facility 1 according to the present invention, which quenches and cools red-hot coke taken out from a coke furnace 5 with a furnace-front rail 3 laid on a coke-taken-out side, and recovers exhaust heat, comprises: a furnace-front carriage 11; a single cooling tower 13; a first winding tower 15 and a second winding tower 17; a top traveling rail 19; a winding machine 21; a first traverser 23; and a second traverser 25, wherein each of the first traverser 23 and the second traverser 25 has a waiting space, the furnace-front carriage 11 includes two connected vehicles in which each vehicle is configured such that a sub-carriage 9 can be mounted thereon, when the furnace-front carriage 11 is stopped at a predetermined position, the mounting position of the sub-carriage 9 of one vehicle coincides with a first transfer position P2, and the mounting position of the sub-carriage 9 in the other vehicle coincides with a second transfer position P4.
B21B 13/14 - Cages de laminoirs, c.-à-d. ensembles composés d'un châssis, de cylindres et d’accessoires ayant des dispositifs de contre-pression agissant sur les cylindres pour les empêcher de ployer sous l'effort
B21B 1/22 - Méthodes de laminage ou laminoirs pour la fabrication des produits semi-finis de section pleine ou de profilésSéquence des opérations dans les trains de laminoirsInstallation d'une usine de laminage, p. ex. groupement de cagesSuccession des passes ou des alternances de passes pour laminer des bandes ou des feuilles en longueurs indéfinies
B21B 31/20 - Réglage des cylindres en déplaçant les cylindres perpendiculairement à leur axe
16.
Spatter scattering prevention apparatus and flash butt welder including the same
Provided is a spatter scattering prevention apparatus that eliminates the necessity to, for example, remove scattered spatters and thus makes it possible to facilitate maintenance work, and also provided is a flash butt welder including the spatter scattering prevention apparatus.
The spatter scattering prevention apparatus 1 according to the present invention is characterized by being configured to form a water screen in midair in the vicinity of a welding spot, at which welding is performed, wherein the water screen is for preventing spatters, generated during the welding, from scattering.
The spatter scattering prevention apparatus is also characterized by being configured to form the water screen on one side in a lateral direction of the welding spot and form the water screen on the other side, laterally opposite to the one side, of the welding spot.
B23K 37/08 - Dispositifs ou procédés auxiliaires non spécialement adaptés à un procédé couvert par un seul des autres groupes principaux de la présente sous-classe pour l'ébavurage
17.
REEL DEVICE, ROLLING EQUIPMENT PROVIDED WITH SAME, AND ROLLING METHOD
This reel device, for performing at least either one of unwinding and rewinding of rolling stock rolled by a rolling mill, is characterized by being provided with: a main electric motor having a main drive shaft; a first mandrel having a first rotating shaft; the first rotating shaft, which is coupled coaxially to the first mandrel in such a way as to rotate together with the first mandrel; a first auxiliary electric motor having a first auxiliary drive shaft, for rotating the first rotating shaft; a second mandrel; a second rotating shaft which is coupled coaxially to the second mandrel in such a way as to rotate together with the second mandrel; a second auxiliary electric motor having a second auxiliary drive shaft, for rotating the second rotating shaft; and a motive power transmitting device which is fixed onto a base, is configured to connect the main drive shaft and the first auxiliary drive shaft selectively to the first rotating shaft, thereby enabling the motive power source of the first mandrel to be switched between the main electric motor and the first auxiliary electric motor, and is configured to connect the main drive shaft and the second auxiliary drive shaft selectively to the second rotating shaft, thereby enabling the motive power source of the second mandrel to be switched between the main electric motor and the second auxiliary electric motor.
B21C 47/00 - Enroulement, bobinage ou dévidage des fils, bandes ou autres matériaux flexibles métalliques, caractérisés par le fait que ces opérations ne s'appliquent qu'au travail des métaux
A gas component measuring device includes: a cyclone including a gas inlet; and a laser gas analyzer configured to take, in the cyclone, a measurement of a component of a subject gas that contains particulate matter and is introduced into the cyclone through the gas inlet.
G01M 15/10 - Test des moteurs à combustion interne par contrôle des gaz d'échappement
G01N 21/3504 - CouleurPropriétés spectrales, c.-à-d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes en recherchant l'effet relatif du matériau pour les longueurs d'ondes caractéristiques d'éléments ou de molécules spécifiques, p. ex. spectrométrie d'absorption atomique en utilisant la lumière infrarouge pour l'analyse des gaz, p. ex. analyse de mélanges de gaz
G01N 21/39 - CouleurPropriétés spectrales, c.-à-d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes en recherchant l'effet relatif du matériau pour les longueurs d'ondes caractéristiques d'éléments ou de molécules spécifiques, p. ex. spectrométrie d'absorption atomique en utilisant des lasers à longueur d'onde réglable
19.
ROLLING MILL AND METHOD FOR CONTROLLING ROLLING MILL
A rolling mill equipped with a pair of rolls that includes a first roll and a second roll for rolling a steel bar to be rolled, and a first hydraulic rolling reduction device and second hydraulic rolling reduction device, which are connected respectively to a first support part and second support part rotatably supporting the first roll at the ends of the first roll, and which move the first roll relative to the second roll, said rolling mill characterized in that a rolling portion, which is a portion where the steel bar is rolled and that is set in a continuous partial region of the pair of rolls in the lengthwise direction, is set at a position at which the distance from the first support part to the rolling portion and the distance from the second support part to the rolling portion are different, and in that the rolling mill is equipped with a distance sensor configured so as to measure a roll deflection amount for the rolling portion of the first roll and/or the second roll, and a control unit configured so as to control the rolling reduction amount of the first hydraulic rolling reduction device and the rolling reduction amount of the second hydraulic rolling reduction device on the basis of a detection value from the distance sensor.
B21B 37/58 - Commande de la force de laminageCommande de l'écartement des cylindres
B21B 38/12 - Procédés ou dispositifs de mesure spécialement adaptés aux laminoirs, p. ex. détection de la position, inspection du produit pour mesurer le bombé des cylindres
B21C 51/00 - Dispositifs de mesure, de calibrage, d'indication, de comptage ou de marquage, spécialement conçus pour être utilisés dans la production ou la manipulation des matériaux concernés par les sous-classes
20.
SPATTER SCATTERING PREVENTION DEVICE AND FLASH BUTT WELDING MACHINE PROVIDED WITH SAID SPATTER SCATTERING PREVENTION DEVICE
Provided is a spatter scattering prevention device which eliminates the need for removing scattered spatter and facilitates maintenance, and a flash butt welding machine provided with the spatter scattering prevention device. A spatter scattering prevention device 1 according to the present invention is characterized by being configured such that: a water film for preventing spatter, which is generated during welding, from being scattered around is formed in the air in the vicinity of the position in which the welding is performed; and such that water films are formed on one side laterally of the position in which the welding is performed, and on another side which is the side opposing the one side laterally of the position in which the welding is performed.
This gas component measuring device is characterized in being provided with: a cyclone device provided with a gas inlet port; and a laser gas analyzing device which measures, inside the cyclone device, a component of a target gas containing particulate matter, introduced into the cyclone device from the gas inlet port.
G01N 1/22 - Dispositifs pour prélever des échantillons à l'état gazeux
G01N 21/27 - CouleurPropriétés spectrales, c.-à-d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes en utilisant la détection photo-électrique
The present invention provides a sintering machine that is for obtaining sintered ore and that is capable of increasing the circulation volume of exhaust gas and ensuring high safety by effectively preventing air leakage. This sintering machine 50 for obtaining sintered ore is provided with a sintering bed 6 comprising a plurality of pallet trolleys that run on a track laid out on a floor surface, and is used for manufacturing a sintered ore by continuously combusting a sintering raw material stacked on the pallet trolleys while the pallet trolleys are moving. The sintering machine 50 is also provided with: an exhaust duct 2 which has disposed therein a main blower 14 for drawing exhaust gas from below the sintering bed 6 and discharging the exhaust gas to outside; an exhaust gas circulation hood 1 that provides a cover above the pallet trolleys; an exhaust gas circulation duct 3 that connects the exhaust duct 2 and the exhaust gas circulation hood 1; and a seal part for hermetically sealing a gap between the exhaust gas circulation hood 1 and the floor surface, wherein the exhaust gas circulation hood 1 is configured so as to maintain the pressure therein at a level equal to or lower than the atmospheric pressure.
Provided is a coke dry quenching plant which has a reduced charging cycle time in spite of the employing of a traverser mode and enables a high throughput. The coke dry quenching plant 1 according to the present invention is equipped with: a single cooling tower 7 which can quench and cool red hot cokes discharged from a coke oven 5 on which an oven-front rail 3 is laid on the coke discharge side and enables the recycling of waste heat; a first oven-front dolly 11 and a second oven-front dolly 13 for respectively transferring buckets 9 that receive the red hot cokes; a first hoisting tower 15; a first hoisting machine 17; a first traverser 19; a second hoisting tower 21; a second hoisting machine 23; a second traverser 25; and a top running rail 27. The coke dry quenching plant 1 is configured such that the red hot cokes can be charged into the single cooling tower 7 alternatively from a bucket 9 hoisted from the first hoisting tower 15 and a bucket 9 hoisted from the second hoisting tower 21.
A mold oscillator includes: a ball screw unit that has a ball screw 32having a threaded shaft 29 and a ball nut 30, and a nut-side shaft 31 fixed to the ball nut 30 coaxially with the threaded shaft 29, wherein the ball screw unit is positioned so that the central axis of the ball screw unit extends in the vertical direction; and a power transmitting mechanism that transmits rotation to the ball screw unit. Bearings rotatably support a first shaft. A second shaft that is the other of the threaded shaft and the nut-side shaft is connected to the mold side. An attachment portion to fix the mold oscillator at an installation position is provided so as to be immovable relative to the bearings in the vertical direction and is configured to be able to change the relative position between the bearings and the second shall in the vertical direction in a state where operation of the mold oscillator is stopped.
B22D 11/053 - Moyens pour faire osciller les moules
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaisonÉléments essentiels pour l'utilisation de ces organes
F16H 25/24 - Éléments essentiels pour ces mécanismes, p. ex. vis, écrous
H02K 7/06 - Moyens de transformation d'un mouvement alternatif en un mouvement circulaire ou vice versa
H02K 7/10 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques
F16H 57/04 - Caractéristiques relatives à la lubrification ou au refroidissement
A mold oscillator includes a ball screw unit that has a ball screw 32 having a threaded shaft 29 and a ball nut 30, and has a nut-side shaft 31 fixed to the ball nut 30 coaxially with the threaded shaft 29, wherein the ball screw unit is positioned so that the central axis of the ball screw unit extends in the vertical direction. A casing surrounds at least part of the ball screw 32. The ball nut 30 of the ball screw 32 and part of the threaded shaft 29 of the ball screw 32, on which, part the ball nut 30 is engaged with the threaded shaft 29, are submerged in a lubricating oil so as to be able to lubricate the ball screw 32 with an oil bath.
B22D 11/053 - Moyens pour faire osciller les moules
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaisonÉléments essentiels pour l'utilisation de ces organes
F16H 57/029 - Boîtes de vitessesMontage de la transmission à l'intérieur caractérisés par des moyens pour rendre hermétiques les boîtes de vitesses, p. ex. pour améliorer l'étanchéité à l'air
F16H 57/04 - Caractéristiques relatives à la lubrification ou au refroidissement
H02K 7/06 - Moyens de transformation d'un mouvement alternatif en un mouvement circulaire ou vice versa
H02K 7/10 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques
09 - Appareils et instruments scientifiques et électriques
11 - Appareils de contrôle de l'environnement
Produits et services
Metalworking machines and tools; chemical processing
machines and apparatus; non-electric prime movers, not for
land vehicles [other than water mills and wind mills]; parts
of non-electric prime movers [other than water mills and
wind mills]; power transmissions and gearing, machine
elements not for land vehicles; brakes, machine elements not
for land vehicles, waste compacting machines and apparatus;
waste crushing machines; plastic processing machines and
apparatus, construction machines and apparatus;
loading-unloading machines and apparatus. Power distribution or control machines and apparatus; rotary
converters; phase modifiers; measuring or testing machines
and instruments; electronic machines, apparatus and their
parts; electric or magnetic meters and testers; electronic
publications; telecommunication machines and apparatus;
laboratory apparatus and instruments. Industrial furnaces; nuclear reactors [atomic piles]; drying
apparatus [for chemical processing]; recuperators [for
chemical processing]; steamers [for chemical processing];
evaporators [for chemical processing]; distillers [for
chemical processing]; heat exchangers [for chemical
processing]; boilers [other than parts of non-electric prime
movers, engines]; garbage incinerators for industrial
purposes; air-conditioning apparatus [for industrial
purposes], freezing machines and apparatus; water purifying
apparatus.
This invention comprises a ball screw unit including: a ball screw 32 that includes a screw shaft 29 and a ball nut 30; and a nut-side shaft 31 provided fixedly to the ball nut 30 and coaxially with the screw shaft 29. The center axis of the ball screw unit is arranged so as to extend in the vertical direction. A case surrounds at least a portion of the ball screw 32. The ball nut 30 of the ball screw 32 and a part of the screw shaft 29 of the ball screw 32 which is in engagement with the ball nut 30 are immersed in lubricating oil, and the ball screw 32 can be lubricated by an oil bath.
B22D 11/053 - Moyens pour faire osciller les moules
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaisonÉléments essentiels pour l'utilisation de ces organes
F16H 25/24 - Éléments essentiels pour ces mécanismes, p. ex. vis, écrous
H02K 7/06 - Moyens de transformation d'un mouvement alternatif en un mouvement circulaire ou vice versa
H02K 7/10 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques
This mold vibrating device comprises a ball screw unit including: a ball screw 32 that includes a screw shaft 29 and a ball nut 30; and a nut-side shaft 31 provided fixedly to the ball nut 30 and coaxially with the screw shaft 29. The center axis of the ball screw unit is arranged so as to extend in the vertical direction. A power transmission mechanism for transmitting rotary motion is provided to the ball screw unit. A bearing rotatably supports a first shaft, and a second shaft, which is the other one of the screw shaft and the nut-side shaft, is coupled on the mold side. An attachment part for fixing the mold vibrating device in an installation position is provided such that relative movement in the vertical direction with respect to the bearing is not possible. The relative position, in the vertical direction, between the bearing and the second shaft can be changed in a state where the mold vibrating device has stopped moving.
B22D 11/053 - Moyens pour faire osciller les moules
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaisonÉléments essentiels pour l'utilisation de ces organes
F16H 25/24 - Éléments essentiels pour ces mécanismes, p. ex. vis, écrous
H02K 7/06 - Moyens de transformation d'un mouvement alternatif en un mouvement circulaire ou vice versa
H02K 7/10 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques
Provided is a compact cooling device for sintered ore which has good cooling efficiency for sintered ore, is capable of large-volume processing, has high heat recovery efficiency, and with which dust is easily collected. In this sintered ore cooling device (1) one side surface of a cooling vat (3) is provided with a gas passage section that stops sintered ore but allows gas to pass through, and the portion of the other side surface of the cooling vat (3) which faces the gas passage section is a ventilation section that stops sintered ore but allows air to pass through. The length in the height direction of a cooling region (defined by the region sandwiched between the gas passage section and the ventilation section) is at least 1/2 the height of the cooling vat (3), the thickness of the cooling region is 1/6 - 1/4 the height of the cooling vat (3), and the upper end of both the inner circumferential and outer circumferential side walls of the cooling vat (3) is located at a height of no less than 1.2 times the thickness of the cooling region from the upper end of the cooling region. In addition, this sintered ore cooling device is equipped with a suction chamber formation wall (39) forming a suction chamber (5), an air intake duct (7) connected to the suction chamber (5), a suction device for suctioning gas in the cooling vat (3), and an exhaust heat recovery device.
Leveler equipment includes a leveler body, a first roll cassette for a roller leveler, and a second roll cassette for a tension leveler. The roller leveler is formed when the first roll cassette is attached to the leveler body, and the tension leveler is formed when the second roll cassette is attached to the leveler body.
B21B 31/08 - Changement des cylindres, des supports de cylindres ou des châssis
B21D 1/02 - Redressage, remise en forme ou élimination des distorsions locales des tôles ou d'objets déterminés faits à partir de tôlesÉtirage des feuilles métalliques combiné avec le laminage au moyen de rouleaux matriceurs
A raw material conveyancing bucket (4) that, prior to raw material for melting in a melting furnace (3) being melted in the melting furnace (3), conveys the raw material in a suspended state using a crane, to a pre-heating device (2) that preheats using heat generated by the melting furnace (3). The raw material conveyancing bucket (4) comprises: a container section (60) that has an upper opening and a lower opening, is for housing the raw material, and comprises an upper lid (62) whereby the upper opening can be opened and closed and a lower lid (63) whereby the lower opening can be opened and closed; a handle (70) suspended by the crane; and a link mechanism that connects the handle (70) to the container section (60) so as to be movable relative to the container section (60). The link mechanism is coupled to the upper lid (62) and the lower lid (63) and functions so as to open and close the upper lid (62) by causing the handle (70) to perform a first relative movement relative to the container section (60) and open and close the lower lid (63) by causing the handle (70) to perform a second relative movement in a different direction to the first relative movement relative to the container section (60).
F27D 3/00 - ChargementDéchargementManutention des charges
C21C 5/52 - Fabrication de l'acier au four électrique
F27B 3/08 - Fours à sole, p. ex. fours à réverbérationFours à arc électrique à chauffage électrique, p. ex. fours à arc électrique, avec ou sans une autre source de chaleur
F27B 3/18 - Aménagement des dispositifs de chargement
F27D 13/00 - Appareils pour le préchauffage des chargesDispositions pour le préchauffage des charges
F27D 17/00 - Dispositions pour l'utilisation de la chaleur perdueDispositions pour l'utilisation ou pour l'élimination des gaz résiduaires
33.
PREHEATING DEVICE AND MELTING EQUIPMENT USED IN MELTING FURNACES AND CONSTRUCTION METHOD FOR MELTING EQUIPMENT
A preheating device (100) that, by using heat generated inside a furnace main body that melts raw material, preheats a raw material supplied to the furnace main body and comprises: a preheating shaft (11) that stores raw material and has a raw material supply opening (18) that supplies the raw material to the furnace main body and is formed so as to conform to and face a raw material charging opening formed in the furnace main body; preheating chamber tilting mechanisms (1, 2, 13) separate from a furnace main body tilting mechanism that tilts the furnace main body; and a linking device (14) that, at least when melt formed inside the furnace main body is discharged, maintains the state in which the raw material charging opening in the furnace main body and the raw material supply opening (18) in the preheating chamber are facing each other and, in conjunction with the tilting of the furnace main body by the furnace main body tilting mechanism, tilts the preheating shaft (11).
A roller leveler is provided having a substantially uniform pitch of leveling rolls arranged in a zigzag manner. The roller leveler has a first roll group with first leveling rolls at a pitch “P1”, a second roll group with second leveling rolls at the pitch “P1”, a first retract mechanism for retracting the middle first leveling rolls, and second retract mechanisms for retracting pairs of end second leveling rolls. The second roll group also has third leveling rolls at the pitch “P1” with respect to the outermost second leveling rolls.
B21D 1/02 - Redressage, remise en forme ou élimination des distorsions locales des tôles ou d'objets déterminés faits à partir de tôlesÉtirage des feuilles métalliques combiné avec le laminage au moyen de rouleaux matriceurs
A roller leveler includes: a leveling roll unit having a plurality of leveling rolls configured to rotate so as to pass a plate while sandwiching and pressing the plate; a pushing cylinder provided at each of an entrance side and a discharge side of the leveling roll unit, at which the plate enters and is discharged, respectively, and configured to press the plate via the leveling rolls; and a driving mechanism configured to rotate the leveling rolls to pass the plate. At least one of the plurality of leveling rolls has a stepped structure, including a lateral center portion with a large diameter, corresponding to a center portion of the plate with respect to a plate width direction, and lateral end portions with a small diameter, corresponding to edge portions of the plate with respect to the plate width direction.
B21B 1/24 - Méthodes de laminage ou laminoirs pour la fabrication des produits semi-finis de section pleine ou de profilésSéquence des opérations dans les trains de laminoirsInstallation d'une usine de laminage, p. ex. groupement de cagesSuccession des passes ou des alternances de passes pour laminer des bandes ou des feuilles en longueurs indéfinies selon un processus continu
B21B 37/28 - Commande de la planéité ou du profil pendant le laminage de bandes, de feuilles ou de tôles
B21D 1/02 - Redressage, remise en forme ou élimination des distorsions locales des tôles ou d'objets déterminés faits à partir de tôlesÉtirage des feuilles métalliques combiné avec le laminage au moyen de rouleaux matriceurs
B21B 39/00 - Systèmes pour faire avancer, soutenir ou présenter le matériau, ou pour commander son mouvement, combinés avec des laminoirs, disposés dans des laminoirs, ou spécialement conçus pour être utilisés avec des laminoirs
B21B 39/06 - Introduction du matériau dans le creux par poussée ou à force
A corner support roll of a rhombic deformation prevention device is brought into contact with each of at least two corners among four corners of a cast piece in a state where a solidified shell is formed in the periphery thereof, and unsolidified molten steel is present in the interior thereof. Contact surfaces of the corner support roll form a right angle in a cross section including a rotating shaft. The rhombic deformation of the solidified shell of the cast piece is prevented by the corners of the cast piece being supported by the corner support rolls. Consequently, the rhombic deformation prevention device for a continuous casting machine, which can reliably prevent the rhombic deformation of the cast piece by simple structure and device, can be provided.
A lance system (20) for blowing reactant gas onto molten metal in a metallurgical furnace includes: a lance (21) configured to blow the reactant gas; a driving mechanism (24) configured to move the lance (21) toward and away from a surface of the molten metal; and a detector (22) configured to detect a parameter indicating a reaction state, in which the reactant gas and the molten metal react with each other in a striking region, in which the reactant gas blown toward the surface of the molten metal strikes the surface of the molten metal. The lance system (20) is configured so as to position the lance (21) to an adequate position based on a value of the parameter indicating the reaction state, which value is supplied from the detector (22).
F27B 3/22 - Aménagement des dispositifs d'alimentation en air ou gaz
F27B 3/28 - Aménagement des dispositifs de commande, de surveillance, d'alarme ou des dispositifs similaires
F27D 3/16 - Introduction d'un jet de fluide ou d'un courant dans la charge
F27D 21/00 - Aménagement des dispositifs de surveillanceAménagement des dispositifs de sécurité
F27D 19/00 - Aménagement des dispositifs de commande
38.
Method of and apparatus for controlling molten metal surface in mold of continuous-casting machine and continuous-casting machine including the apparatus
A method of and an apparatus for controlling a molten metal surface in a mold that are effective to various disturbances are provided. The method and the apparatus for controlling a molten metal surface level in a mold according to the present invention perform the following operations of: measuring the molten metal surface level in the mold of a continuous-casting machine; changing a reference position of oscillation of the mold based on the difference between a molten metal surface setting value set in advance as a desired value of the molten metal surface and a measured value of the molten metal surface level; and making the reference position of oscillation follow molten metal surface fluctuations.
A continuous casting device comprises: a mold; a dummy bar that is inserted into the mold and receives molten steel when starting casting and that is curved at a constant curvature in the longitudinal direction; a guide roller group that guides the dummy bar and the molded piece that are removed from the mold downward along a circular path that passes through the mold and has the same radius of curvature; a sending unit that sends in a direction tangential to the circular path the molded piece that is separated from the dummy bar at the bottom of the circular path; and a guide mechanism that moves the dummy bar that is separated from the molded piece along the circular path and inserts the dummy bar into the mold from the top.
Leveler equipment (100) is provided with: a leveler main body (10); a first roll cassette (20) for a roller leveler; and a second roll cassette (30) for a tension leveler. The roller leveler is constituted when the first roll cassette (20) is attached to the leveler main body (10), and the tension leveler is constituted when the second roll cassette (30) is attached to the leveler main body (10).
B21D 1/02 - Redressage, remise en forme ou élimination des distorsions locales des tôles ou d'objets déterminés faits à partir de tôlesÉtirage des feuilles métalliques combiné avec le laminage au moyen de rouleaux matriceurs
41.
ROLLER LEVELER AND PLATE MATERIAL CORRECTION METHOD USING SAME
A roller leveler (100) equipped with: a leveling roll unit (20) having multiple leveling rolls (6, 8a, 8b) that sandwich a plate material (P) therebetween and rotate so as to transfer the plate material while pressing against the plate material; pressing cylinders (4a, 4b) that press against the plate material at the entrance and the exit of the leveling roll unit (20) via the leveling rolls (6, 8a, 8b); and a drive mechanism (15) that causes the leveling rolls (6, 8a, 8b) to rotate, thereby transferring the plate material (P). At least one leveling roll (8b) of the multiple leveling rolls (6, 8a, 8b) is a stepped structure having a larger diameter width-direction center part (21) corresponding to the center part of the plate material in the width direction and smaller diameter width-direction end parts (22) corresponding to the ends of the plate material in the width direction.
This roller leveler (100) for correcting a sheet material (S) is equipped with: a leveling roll unit (20) having a plurality of leveling rolls (6, 8) that rotate so as to thread the sheet material through while also taking in and pressing on the sheet material (S); pressure cylinders (4a, 4b) for pressing on the sheet material (S) via the leveling rolls (6, 8) at an entry-side and exit-side of the leveling roll unit (20); and a driving mechanism (15) for rotating the leveling rolls (6, 8) to thread the sheet material (S) through. The diameter (D) of the plurality of leveling rolls (6, 8) is given a value satisfying 0.5 < D/P < 0.9 in relation to a between-roll pitch (P) of the leveling rolls (6, 8), determined by the maximum required yield stress and maximum required sheet thickness for a sheet material that must be corrected.
This arc furnace is provided with a furnace main body (1) in which raw material (S) to be dissolved is charged, a furnace cover (4) which closes a top opening in the furnace main body (1), arc electrodes (5) which are inserted from the top of the furnace cover (4) into the furnace main body (1) and which, by being electrified, form an arc and dissolve the raw material, and a discharge port (6) which discharges discharge gas in the furnace main body (1). The arc electrodes (5) are arranged such that in the horizontal plane of the furnace main body (1), the center of arc heating is eccentric from the center of the furnace main body towards one side. The discharge port (6) is in the side wall of the furnace main body (1) opposite the eccentricity direction of the arc electrodes (5) and is provided at a height position in the range where raw material (S) is present, and the discharge gas generated by arc heat from the arc electrodes (5) is discharged from the discharge port (6) through the raw material (S) charged in the furnace main body (1).
F27B 3/20 - Aménagement des dispositifs de chauffage
C21C 5/52 - Fabrication de l'acier au four électrique
F27B 3/08 - Fours à sole, p. ex. fours à réverbérationFours à arc électrique à chauffage électrique, p. ex. fours à arc électrique, avec ou sans une autre source de chaleur
F27B 3/18 - Aménagement des dispositifs de chargement
F27B 3/22 - Aménagement des dispositifs d'alimentation en air ou gaz
44.
PALM KERNEL SHELL CHARCOAL MANUFACTURING METHOD AND SYSTEM
In order to obtain a method and a device for manufacturing palm kernel shell charcoal that uses palm kernel shell as a starting material at reduced starting material cost, this palm kernel shell charcoal manufacturing method uses a boiler (3) in which palm kernel shell can be used as fuel and high-temperature gas can be introduced from outside and used, and a palm kernel shell charcoal manufacturing device (31) for manufacturing palm kernel shell charcoal by carbonizing the palm kernel shell by a spontaneous combustion-type direct heating kiln (33), the palm kernel shell charcoal manufacturing method being characterized in that secondary combustion air is supplied to exhaust gas including an unburned combustible content and discharged from the spontaneous combustion-type direct heating kiln (33) to burn the exhaust gas to thereby produce high-temperature gas, and the high-temperature gas is conveyed and introduced into the boiler.
C10B 53/02 - Distillation destructive spécialement conçue pour des matières premières solides particulières ou sous forme spéciale de matières contenant de la cellulose
B09B 3/00 - Destruction de déchets solides ou transformation de déchets solides en quelque chose d'utile ou d'inoffensif
45.
CONTINUOUS CASTING MACHINE MOLD HOT WATER SURFACE CONTROL METHOD AND DEVICE, AND CONTINUOUS CASTING MACHINE COMPRISING DEVICE
Provided are a mold hot water surface control method and device with which efficacy holds even with respect to various disturbances. A mold hot water surface level control method according to the present invention is characterized by measuring an inner-mold hot water surface level in a continuous casting machine, changing the mold fluctuation reference location on the basis of the deviation between a hot water surface setting value which is preset as a hot water target value and the measured value, and the fluctuation reference location tracking with the hot water surface fluctuation.
The correction ratio of the widthwise end parts of a plate (P) is calculated from the degree of offset from the center of a pass line in the plate-width center, and from the load on pressing cylinders (4a, 4b) at the two widthwise ends. The degree of tightening of the pressing cylinders (4a, 4b) at the two widthwise ends is individually controlled and vertical deflection is corrected. The degree of tightening of a plurality of hydraulic crowning cylinders (12) is individually controlled and lateral deflection is corrected on the basis of detection values from a plurality of deflection-detection sensors (21). The plate-width center is determined from the degree of offset of the plate (P). The degree of compressive deformation in the plate-thickness center is calculated on the basis of the mill constant of compressive deformation and the load at the plate-width center. The degree of tightening of the plurality of hydraulic crowning cylinders (12) is individually controlled and the compressive deformation is corrected by multiplying the degree of compressive deformation in the plate-thickness center by a function of the degree of offset and the plate width in the position of each of the hydraulic crowning cylinders (12).
The roller leveler (100) has multiple leveling rolls (6, 8), pressing cylinders (4), and a control unit (30). When the established plunge for an entry side pressing cylinder that is necessary for leveling a metal plate (P) is greater than the limiting plunge for feed-in, the control unit (30) limits the entry side pressing cylinder plunge to the limiting plunge for feed-in on the basis of a feed-in compensation table until the feed-in compensation control distance is reached and when the leading end of the metal plate reaches the feed-in compensation control distance, controls the plunge of the entry side pressing cylinder (4) to equal the established plunge.
Provided is coke dry quenching equipment, the power consumption of which can be reduced by compacting a gas circulating blower. The coke dry quenching equipment (1) according to the present invention is characterized by comprising: a CDQ cooling tower (3) for passing an inactive gas over red-hot cokes and cooling the red-hot cokes; a primary dust collector (5) for performing a primary dust collection of gas discharged from the CDQ cooling tower (3); a waste heat boiler (7) in which the primary dust-collected gas is introduced and waste heat is recovered; a secondary dust collector (9) provided on the gas outlet side of the waste heat boiler (7) and performing a secondary dust collection; a gas cooler (11) for cooling the secondary dust-collected gas; and a gas circulating blower (13) for circulating gas. In the coke dry quenching equipment (1), the gas cooler (11) is disposed on the upstream side of the gas circulating blower (13).
C10B 39/02 - Refroidissement à sec en dehors du four
49.
Waste heat recovery structure for steel making electric arc furnaces, steel making electric arc furnace facility, and waste heat recovery method for steel making electric arc furnaces
A waste heat recovery structure includes a first exhaust gas flow path provided to each of steel making electric arc furnaces to discharge exhaust gas thereinto; a waste heat boiler disposed on the first exhaust gas flow path to recover waste heat as saturated steam from exhaust gas; a steam accumulator configured to store steam formed by confluence of saturated steam parts, each generated by the waste heat boiler; a steam super heater configured to turn steam into superheated steam by heating; a second exhaust gas flow path configured to lead exhaust gas from the waste heat boiler to the steam super heater to use it for superheating; a third exhaust gas flow path configured to discharge exhaust gas from the waste heat boiler not through the steam super heater; and a switching device configured to switch flow paths between the second and third exhaust gas flow paths.
C21C 5/40 - Prises de gaz ou appareils séparateurs pour gaz résiduaires ou poussières de convertisseurs
C21C 5/52 - Fabrication de l'acier au four électrique
F22B 1/18 - Méthodes de production de vapeur caractérisées par le genre de chauffage par exploitation de l'énergie thermique contenue dans une source chaude la source chaude étant un gaz chaud, p. ex. des gaz d'évacuation tels que les gaz d'échappement de moteurs à combustion interne
F27D 19/00 - Aménagement des dispositifs de commande
The purpose of the invention is to obtain an axial flow multi-cyclone dust collector that can efficiently and equally distribute and introduce dust-containing gas into multiple axial flow cyclones disposed in a gas introduction chamber. This axial flow multi-cyclone dust collector (1) is equipped with a gas introduction chamber (3) into which dust-containing gas is introduced and in which multiple axial flow cyclones (11) are disposed, a dust-collecting chamber (5) that accumulates the dust separated from the dust-containing gas by the multiple axial flow cyclones (11), and a clean gas chamber (7) for collecting the clean gas resulting from the dust being separated from the dust-containing gas, and is characterized in that the gas introduction chamber (3) is obtained by providing: a lower chamber (3a), which is formed from a ring-shaped flow channel with an open upper surface that is formed to surround the upper outer circumference of the dust-collecting chamber (5) and in which a gas inlet (9) where the dust-containing gas is introduced is formed; and an upper chamber (3b) that communicates with the opening of the lower chamber (3a) from above the lower chamber (3a) and in which the multiple axial flow cyclones (11) are disposed.
A pusher includes a pusher main body configured to push forward a target object; a pusher main body cylinder connected to the pusher main body and configured to move the pusher main body forward and backward; a pusher carriage connected to the pusher main body cylinder; and a pusher carriage cylinder connected to the pusher carriage and configured to move the pusher carriage forward and backward, the pusher carriage cylinder having a pushing-out direction opposite to a pushing-out direction of the pusher main body cylinder.
A system for transporting red-hot coke including a non-rotary coke receiving car which travels on a first rail for receiving coke from at least one coke oven chamber; at least two rotary coke buckets, the at least two rotary coke buckets being mounted on a turntable, wherein the turntable is operable to orbit the at least two rotary coke buckets around its center, and the turntable travels along a second rail; one or two sets of discharge devices, each containing a discharge chute and a dust collector hood, which is operable to discharge the coke from the non-rotary coke receiving car to the at least two rotary coke buckets; and a hoist for hoisting and transporting the at least two rotary coke buckets to a coke dry quenching unit.
Provided is a coke charging apparatus such that elimination of particle size segregation of red hot coke can be ensured during charging of the red hot coke. This coke charging apparatus (1) is provided above a CDQ cooling tower (7) and charges red hot coke (5) discharged from a coke bucket (3) into the CDQ cooling tower (7). The coke charging apparatus (1) has a receiving hopper part (9) for receiving the red hot coke (5) discharged from the coke bucket (3) and a charging chute part (11) for charging the red hot coke (5) received in the receiving hopper part (9) into the CDQ cooling tower (7). The feeding chute part (11) is configured such that part or all of the feeding chute part (11) is rotatable, and a rotation driving device (13) for rotating part or all of the feeding chute part (11) is provided.
A roller leveller (100) that levels a slab-like metal plate (P) is provided with: a plurality of leveling rolls (6, 8), arranged staggered above and below the pass line of the metal plate (P) to be leveled, which sandwich the metal plate (P) and rotate to pass the metal plate (P) being leveled; a hydraulic press cylinder (4) that presses the metal plate (P) via the leveling rolls (6, 8); a plurality of intermediate rolls (13, 14) larger in diameter than the leveling rolls (6, 8), and disposed on the upper and lower outer sides of the plurality of leveling rolls (6, 8) so as to be in contact with the leveling rolls (6, 8); and driving devices (15) that respectively rotate the intermediate rolls (13, 14). While the metal plate (P) is pressed by the press cylinder (4) via the leveling rolls (6), the driving devices (15) rotatingly drive the intermediate rolls so as to transmit the driving force therefrom to the leveling rolls (6, 8) to pass the metal plate (P).
A roller leveller (100) that levels a slab-like metal plate (P) is provided with: a plurality of leveling rolls (6, 8) that rotate to pass the metal sheet while sandwiching and pressing the metal plate (P); a hydraulic press cylinder (4) that presses the metal plate (P) via the leveling rolls (6, 8); driving devices (15) that rotate corresponding leveling rolls to pass the metal plate (P); and pinch rolls (31a, 31b) disposed on the outer part of the leveling roll arrangement site on the pass line of the metal plate (P). While the metal plate (P) is pressed via the leveling rolls (6, 8) with the required pressing force for leveling the metal plate (P) by the press cylinder (4), the metal plate (P) is passed by the pulling force generated by the pinch rolls (31a, 31b) and the drive force generated by the driving devices (15).
The purpose of the invention is to obtain a red-hot coke receiving and conveying apparatus having less restrictions on the shape and size of a conveying bucket and capable of efficiently conveying red-hot coke. The red-hot coke receiving and conveying apparatus (1) comprises: a conveying bucket (9) mounted on a carriage (7) running on quenching car rails (5) provided along a coke oven (3); a hoisting tower (11) for hoisting the conveying bucket (9); and a coke guide car (13) running on coke guide car running rails (15) provided on the upper both sides of the quenching car rails (5) so as to sandwich the quenching car rails (5). The red-hot coke receiving and conveying apparatus (1) receives the red-hot coke pushed out from the coke oven (3) and conveys the red-hot coke to the side of a coke dry quenching facility. The red-hot coke receiving and conveying apparatus (1) has a rail (57) constituting a part of the coke guide car running rails (15) and is equipped with a horizontal movement type rail evacuating and restoring device (17) for evacuating the rail (57) from a position continuing to the coke guide car running rails (15) in a direction departing from the opposing coke guide car running rails (15) and for restoring the rail (57) to the position continuing to the coke guide car running rails (15).
Obtained are a method and an apparatus for recovering a metal from electric furnace dust, which are capable of recovering the metal with high efficiency without causing problems such as occlusion of the apparatus. An apparatus (1) for recovering a metal from electric furnace dust of the present invention, which recovers molten iron and zinc oxide by melting and reducing electric furnace dust, which contains not less than 12% by mass of a chlorine content and a zinc content in total, mainly by electrical energy. The apparatus (1) for recovering a metal from electric furnace dust comprises: a melting/reduction furnace (3); a secondary combustion chamber (5) in which the exhaust gas from the melting/reduction furnace (3) is caused to form an upward flow at an ascending rate of 0.5-2.0 m/s (inclusive); a coarse-grained dust recovery device (7) for recovering coarse-grained dust that settles in the lower part of the secondary combustion chamber (5); and a fine dust recovery device (9) which is disposed on the exhaust gas exit side of the secondary combustion chamber (5) for the purpose of recovering fine dust.
A baffle plate unit (24) has a pair of baffle plates (22), and a position adjustment mechanism (23) that adjusts the position with respect to the ends in the width direction of a metal band of the pair of baffle plates (22). The position adjustment mechanism (23) has a pair of electromagnetic wave sensor units (32) that detect the position of each end in the width direction of the metal band (1), and controls the position of the baffle plates (22) on the basis of the detection values using a control unit (33). Each electromagnetic wave sensor unit (32) has a detector (38) that: emits electromagnetic waves, and has an antenna that receives the magnetic waves reflected by the ends in the width direction of the metal band (1); and a body (37). The detectors (38) are disposed in a fixed manner at positions that are spaced a predetermined length from the ends in the width direction of the metal band (1).
A coke dry quenching plant (100) is provided with: a quenching tower (1) having at the upper part thereof a charging opening (11) through which red-hot coke is charged into the quenching tower (1) and quenching the red-hot coke charged therein; a furnace top lid (12) for opening and closing the charging opening (11); gas circulation channels (31, 22) provided with a quenching gas channel (31) for causing a quenching gas to flow toward the quenching tower (1) and also with a high-temperature-gas channel (22) for allowing high-temperature gas, which is produced by the heat exchange of the quenching gas with the red-hot coke, to flow therethrough, the gas circulation channels (31, 22) circulating gas which contains the quenching gas; a waste heat recovery boiler(4) provided in the gas circulation channels (31, 22) and recovering the heat of the quenching gas, the temperature of which has been raised to a high level through the heat exchange thereof with the red-hot coke; adjustment mechanisms (5, 6) for adjusting the flow rate of the gas which circulates through the quenching tower (1) and through the gas circulation channels (31, 22); and a control unit (7) which, when the furnace top lid (12) is opened and the red-hot coke is charged into the quenching tower (1), performs control in such a manner that the flow rate of the gas which circulates through the quenching tower (1) and through the gas circulation channels (31, 22) is reduced to a level lower than that when the coke dry quenching plant is normally operated with the furnace top lid (12) closed.
Disclosed are a method and a device for producing a palm kernel shell (PKS) charcoal, said PKS charcoal having a fixed carbon content of 80% or more and a volatile matter content of 12% or less, using a direct heating type rotary kiln in which self-sustaining combustion can proceed. The method for producing a PKS charcoal, whereby PKS is carbonized by using a direct heating type rotary kiln in which self-sustaining combustion can proceed to give the PKS charcoal, is characterized by comprising a carbonization step for carbonizing the PKS by using said rotary kiln, and a volatile matter-removal step for removing volatile matters contained in said PKS charcoal with the use of the potential heat thereof by, after the carbonization step, enclosing the hot PKS charcoal in a heat-insulated chamber with restricted air flow and holding the PKS charcoal therein for 30 minutes or longer.
C10B 53/02 - Distillation destructive spécialement conçue pour des matières premières solides particulières ou sous forme spéciale de matières contenant de la cellulose
61.
WASTE HEAT RECOVERY FACILITY FOR ARC FURNACE FOR STEEL MAKING, ARC FURNACE FACILITY FOR STEEL MAKING, AND WASTE HEAT RECOVERY METHOD FOR ARC FURNACE FOR STEEL MAKING
A waste heat recovery facility for an arc furnace for steel making is provided with: first exhaust gas passages for discharging exhaust gas from each of a plurality of arc furnaces for steel making (1); waste heat boilers (6) that are installed in the first exhaust gas passages (2, 3, 4), and that recover the waste heat from the exhaust gas as saturated steam; a steam accumulator (62) that accumulates steam by merging the saturated steam generated by each of the waste heat boilers (6); a steam superheater (43) that produces superheated steam by heating the steam accumulated in the steam accumulator (62); second exhaust gas passages (5, 41, 42) that discharge exhaust gas, which has been obtained from the waste heat recovered by the waste heat boilers (6), guided to the steam superheater (43), and provided for superheating of the saturated steam; third exhaust gas passages that discharge exhaust gas, which has been obtained from the waste heat recovered by the waste heat boilers (6), but which bypasses the steam superheater (43); switching means (31, 32) that switch the exhaust gas passage, after waste heat has been recovered, between the second exhaust gas passages and the third exhaust passages (18, 12, 51).
C21C 5/52 - Fabrication de l'acier au four électrique
F22B 1/18 - Méthodes de production de vapeur caractérisées par le genre de chauffage par exploitation de l'énergie thermique contenue dans une source chaude la source chaude étant un gaz chaud, p. ex. des gaz d'évacuation tels que les gaz d'échappement de moteurs à combustion interne
F22B 3/04 - Autres méthodes de production de vapeurChaudières à vapeur non prévues dans les autres groupes de la présente sous-classe par détente brusque d'eau chaude à haute pression à l'intérieur des chambres de détente, p. ex. dans des accumulateurs
F27B 3/10 - Parties constitutives, accessoires ou équipement, p. ex. collecteurs de poussière, spécialement adaptés aux fours à sole
Provided is a vertical shaft furnace with which the equipment is simplified and the operating conditions are not complicated. A vertical shaft furnace (1) continuously produces a target product by incineration, gasification, and dry distillation or reduction of charging materials charged from the furnace top. Tuyeres (11) and (13) for blasting high-temperature gas are disposed in two steps in the direction of furnace length in order to form a high-temperature soaking zone of a predetermined length below the center position in the direction of furnace length.
C10B 53/08 - Distillation destructive spécialement conçue pour des matières premières solides particulières ou sous forme spéciale sous forme de briquettes, mottes ou similaires
C10B 57/04 - Autres procédés de carbonisation ou de cokéfactionCaractéristiques générales des procédés de distillation destructive utilisant des charges de composition spéciale
Provided is a pusher having a compact structure to conserve space, wherein a driving force necessary to move a pusher main body backward can be increased without increasing the diameter of a cylinder. The pusher is provided with a pusher main body (1) for pushing an object, a cylinder (2) for the pusher main body, which is connected to the pusher main body (1) and which moves the pusher main body (1) forward or backward, a pusher carriage (3) connected to the cylinder (2) for the pusher main body, and a cylinder (4) for the pusher carriage, which is connected to the pusher carriage (3) and which moves the pusher carriage (3) forward or backward, said cylinder (4) being disposed in a cylinder pushing direction opposite to the cylinder pushing direction of the cylinder (2) for the pusher main body.
Even if a number of corrective rollers used to correct steel sheets is comparatively low, when the pitches of said rollers are changed, the disclosed roller leveler makes it possible to roughly equalize the pitches of the corrective rollers in the transfer direction of the steel sheets. Said corrective rollers are arranged in a zigzag pattern. The disclosed roller leveler (1), which has a comparatively simple structure, is provided with: a first roller group (2) that has first corrective rollers (4 to 7) arranged with a pitch P1 in the steel-sheet transfer direction; a second roller group (3) that has five second corrective rollers (9 to 13) that are arranged, with a pitch P1 in the steel-sheet transfer direction, in a zigzag pattern with respect to the first corrective rollers (4 to 7); a first pull-back mechanism (29) that pulls first corrective rollers (5 and 6) back from the transfer path (PL); and second pull-back mechanisms (32 and 33) that pull second corrective rollers (9, 10, 12, and 13) back from the transfer path (PL). The second roller group (3) is provided with third corrective rollers (8 and 14) that are disposed at a pitch P1 in the steel-sheet transfer direction with respect to second corrective rollers (9 and 13).
In order to maintain molten metal in an arc furnace in a stable state by detecting a change in the state of an iron source supplied into the arc furnace when the iron source is continuously supplied to the furnace and melted, provided is an arc melting facility (22) provided with a melting chamber (1) for melting an iron source (20) by arc discharge generated from an electrode (2), and an iron source supply device (8) for continuously supplying the iron source to the melting chamber, the arc melting facility being characterized by comprising a state change detection unit (12a, 12b, 12c) for detecting a change in the state of the melting chamber when the arc discharge is generated from the electrode, and a control device (6) for adjusting the supply speed when the iron source is supplied to the melting chamber by the iron source supply device on the basis of the result of detection by the state change detection unit.
C21C 5/52 - Fabrication de l'acier au four électrique
F27B 3/28 - Aménagement des dispositifs de commande, de surveillance, d'alarme ou des dispositifs similaires
F27D 17/00 - Dispositions pour l'utilisation de la chaleur perdueDispositions pour l'utilisation ou pour l'élimination des gaz résiduaires
F27D 19/00 - Aménagement des dispositifs de commande
F27D 21/00 - Aménagement des dispositifs de surveillanceAménagement des dispositifs de sécurité
H05B 7/144 - Sources de puissance spécialement adaptées pour le chauffage par décharge électriqueCommande automatique de la puissance, p. ex. en commandant la position des électrodes
Disclosed is a receiving/conveyance device for red-hot coke, said device having a simple structure. Also, a conveyance bucket in said device can have increased volumetric efficiency. The disclosed receiving/conveyance device for red-hot coke (1) has a receiving device for red-hot coke (5) and a hoisting tower (7). A conveyance bucket (3), the bottom of which has a discharge gate opening/closing mechanism (31), is placed on the receiving device for red-hot coke (5), and said device receives red-hot coke from a coke oven via the conveyance bucket (3). The hoisting tower (7) suspends the conveyance bucket (3) on the side on which coke dry quenching equipment is provided. The receiving device for red-hot coke (5) is provided with: a parent wheeled platform (13) that runs on a rail (11) provided along the coke oven; a child wheeled platform (17) that moves the conveyance bucket (3) between the parent wheeled platform (13) and the hoisting tower (7); and a rotating table (15) that is provided on the parent wheeled platform (13) and that rotates the conveyance bucket. The hoisting tower (7) is provided with: a metal suspension fixture (21) having hook parts (19) that can hold the bottom of a conveyance bucket (3) that has moved to the hoisting tower side; and a hoisting mechanism (25) that hoists the metal suspension fixture (21).
Provided is arc melting equipment used for melting an iron source with a high heat efficiency and capable of controlling the supply of the iron source supplied from a preheat chamber to a melting chamber, and also provided is a molten metal operation method using the arc melting equipment. The arc melting equipment (1) comprises a melting chamber (2) for melting an iron source, a shaft-type preheat chamber (4) provided so as to be directly coupled to the melting chamber (2), and an electrode (3). In the arc melting equipment (1), at least part of the bottom surface of the preheat chamber (4) is formed as a sloped bottom surface (7a) having a slope descending toward the melting chamber (2). A shaft front dimension (H) is set to the optimum value for controlling the supply of the iron source. A pushing-out device (6) for moving the iron source in the preheat chamber (4) toward the melting chamber (2) is provided at a lower part of the preheat chamber (4). Driving the pushing-out device (6) allows the iron source to be supplied from the preheat chamber (4) to the melting chamber (2), and stopping the driving of the pushing-out device (6) stops the supply of the iron source supplied from the preheat chamber (4) to the melting chamber (2). The optimum value of the shaft front dimension (H) is set so that for the maximum length (A) of the iron source, the relationship A ≤ H ≤ 4A is satisfied.
F27B 3/18 - Aménagement des dispositifs de chargement
C21C 5/52 - Fabrication de l'acier au four électrique
F27B 3/08 - Fours à sole, p. ex. fours à réverbérationFours à arc électrique à chauffage électrique, p. ex. fours à arc électrique, avec ou sans une autre source de chaleur
A welder for a metal rolling system, which is disposed in the metal rolling system and is configured to perform spot-welding on a product strip, includes a back bar disposed below the pass line and welding guns disposed above the pass line to perform series welding for welding a plurality of points at one time.
B21B 1/38 - Méthodes de laminage ou laminoirs pour la fabrication des produits semi-finis de section pleine ou de profilésSéquence des opérations dans les trains de laminoirsInstallation d'une usine de laminage, p. ex. groupement de cagesSuccession des passes ou des alternances de passes pour laminer des feuilles de longueur limitée, p. ex. des feuilles pliées, des feuilles superposées
70.
WASTE HEAT RECOVERY FACILITY OF ARC FURNACE FOR STEEL-MAKING AND METHOD FOR RECOVERING WASTE HEAT
In generating steam by utilizing the heat of the waste gas discharged from an arc furnace for steel-making, the object aims to level the generated quantity of steam so as to easily use the steam for power generation. A waste heat boiler for recovering the sensible heat and combustion heat of the waste gas discharged from an arc furnace (1) for steel-making is installed in each of a plurality of the arc furnaces. The arc furnaces are operated at the shifted operation times, and the saturated steam generated in each of the waste heat boilers is converged, whereby the quantities of the generated saturated steams are leveled.
C21C 5/52 - Fabrication de l'acier au four électrique
F22B 1/18 - Méthodes de production de vapeur caractérisées par le genre de chauffage par exploitation de l'énergie thermique contenue dans une source chaude la source chaude étant un gaz chaud, p. ex. des gaz d'évacuation tels que les gaz d'échappement de moteurs à combustion interne
F27B 3/28 - Aménagement des dispositifs de commande, de surveillance, d'alarme ou des dispositifs similaires
F27D 17/00 - Dispositions pour l'utilisation de la chaleur perdueDispositions pour l'utilisation ou pour l'élimination des gaz résiduaires
71.
METHOD AND APPARATUS FOR CHARGING RAW MATERIAL TO BE SINTERED
Provided is a technique for keeping the spacing of wires forming a chute equivalent in charging a raw material to be sintered into a sintering machine, thereby to keep a classifying performance. A method for charging a raw material to be sintered feeds a raw material to a wire chute (5) equipped with a plurality of wires (3), thereby to classify and charge the raw material into a pallet (9) therebelow. The raw material is fed to the wire chute (5) while brackets (17, 19, 21) for supporting the wires (3) are being moved in the axial directions of the wires (3).
A radiant tube burner device and a heat storing element unit have a simple structure, high reliability, and excellent heat storing performance. A radiant tube burner device used for a heating device for a continuous steel-strip annealing facility has a burner device (11) mounted on the one end side of a radiant tube (5), an air supply pipe (15) for supplying combustion air to the burner device (11), a gas discharge pipe (17) connected to the other end side of the radiant tube (5), a pair of heat storing elements (19, 21) provided in a piping system for interconnecting the gas discharge pipe (17) and the air supply pipe (15), a first four-way switching valve (31) provided in a piping system for interconnecting the gas discharge pipe (17) and the pair of heat storing elements (19, 21), and a second four-way switching valve (33) provided in a piping system for interconnecting the air supply pipe (15) and the pair of heat storing elements (19, 21).
Disclosed are an air supply device and a high‑temperature particulate cooling facility equipped with the air supply device that are used to cool a high‑temperature particulate such as sintered ore, pellets or high‑temperature clinker and that have superior usage efficiency and good maintainability. The upper parts of water seal chamber upper spaces (24i), (24i) on the movable air passage (25) side and the upper part of the movable air passage (25) are connected, and the ring‑shaped air passage (25) is continuous in the circumferential direction. In addition, an air damper (81) is provided in the linking air duct (26) thereof, and the air damper (81) is closed in an ore supply/discharge section (B) and open in a cooling section (C).
[PROBLEMS]
To provide a roll, a rolling mill and rolling method capable of not only effectively correcting the plate crown of a material to be rolled but also reducing the edge drop and preventing a roll from damage caused by the increase of the local line pressure between the rolls.
[MEANS FOR SOLVING PROBLEMS]
A roll crown is formed by a continuous curve having a local maximum point and a local minimum value point where the central region held between the local maximum point and the local minimum point represents one function and the end region from the local maximum point to the nearer roll end represents another function having an inclination of steeper gradient (or having a radius decreasing more sharply toward the roll end) than that of the extension of the function in the central region.
This aims to provide a welder optimum for use in rolling a sheet, and a rolling method including the most advantageous procedure for the welding operation and the subsequent separation of a leader strip. The rolling facility welder (10) performs a series welding operation with a back bar disposed below a pass line and a welding gun disposed over the pass line, thereby to weld a plurality of points simultaneously. The rolling method joints a leader portion (L) held in an exit welder (4) and the tip of a rolled sheet (A) by the spot welder (10), and the rolled sheet (A) is finished in a pass of an even number toward an entrance winder (3).
B21B 15/00 - Systèmes permettant d'effectuer des opérations auxiliaires pour le travail des métaux, spécialement combinés, disposés ou adaptés pour être associés aux laminoirs
B21B 1/32 - Méthodes de laminage ou laminoirs pour la fabrication des produits semi-finis de section pleine ou de profilésSéquence des opérations dans les trains de laminoirsInstallation d'une usine de laminage, p. ex. groupement de cagesSuccession des passes ou des alternances de passes pour laminer des bandes ou des feuilles en longueurs indéfinies selon un processus non continu dans des laminoirs réversibles, p. ex. avec des bobines de stockage intermédiaires pour accumuler le matériau travaillé
B21C 47/26 - Dispositions particulières permettant un traitement simultané ou subséquent du matériau
An arc furnace steelmaking process includes the steps of: feeding a mixture obtained by adding carbide obtained by dry distillation of coconut palm or oil palm shell (coconut shell charcoal or PKS charcoal) and having a residual volatile content of 12% or more to iron scraps to an arc furnace; and producing molten steel by melting the iron scraps. It is preferred that a carbon material blown into the arc furnace from a lance has a residual volatile content less than 12%.
[PROBLEMS] To provide a rolling roll, a rolling mill and a rolling method in which the board crown of a rolled material can be corrected effectively while edge drop can be reduced, and damage to the roll due to local line pressure rise between rolls is prevented. [MEANS FOR SOLVING PROBLEMS] A roll crown is formed by a continuous curve having a maximal value point and a minimal value point where the central region held between the maximal value point and the minimal value point represents one function, and the end region from the maximal value point to a closest roll end represents a function having an inclination of steeper gradient than that of the extension of the function in the central region (i.e., the radius decreases sharply toward the roll end).
B21B 13/14 - Cages de laminoirs, c.-à-d. ensembles composés d'un châssis, de cylindres et d’accessoires ayant des dispositifs de contre-pression agissant sur les cylindres pour les empêcher de ployer sous l'effort
B21B 37/42 - Commande de la planéité ou du profil pendant le laminage de bandes, de feuilles ou de tôles utilisant une combinaison de la flexion et du déplacement axial des cylindres
78.
GLOWING COKE DELIVERING EQUIPMENT AND METHOD OF DELIVERING THE SAME
A glowing coke delivering equipment, and method of delivering the same, not requiring size growing of a winch, reinforcing of CDQ facilities, etc. even when the loading capacity of a coke bucket does not agree with the output volume per coke oven. In particular, there is provided a glowing coke delivering equipment characterized by including a coke receiving vehicle for receiving of the coke outputted from a coke oven; a dispensing unit for dispensing of the coke into a coke bucket; a delivery unit for delivering of the coke bucket to winching position; and a winch for delivering of the coke bucket to coke dry quenching facilities.
The continuous rolling method and the continuous rolling apparatus provide good product quality and product yield by successively joining pluralities of traveling hot steel pieces by flash welding, and by rolling thus prepared endless steel piece, thus preventing generation of flaws in the rolling step, thereby manufacture steel rods, wires, and the like by the continuous rolling technology. The method has: a heating step for heating billet to a specified temperature; a flash welding step for joining the trailing end of preceding billet with the leading end of succeeding billet while they are traveling using flash welding; a deburring step for removing burrs from the welded part; a trimming step for trimming corners of cross section of the deburred welded part; and a rolling step for rolling the joined billets.
