公开(公告)号：US20240318916A1

公开(公告)日：2024-09-26

申请号：US18259660

申请日：2021-11-09

申请人： ANDRITZ Metals Germany GmbH

发明人： Dankmar Taets von Amerongen ,  Boris Kofmann ,  Maicon Piske

IPC分类号： F27D99/00 ,  F27B9/20 ,  F27D3/00

CPC分类号： F27D99/0073 ,  F27B9/201 ,  F27D3/00 ,  F27D2003/0048

摘要： The subject of the present invention is a shielding shoe for covering openings in the bottom of a walking beam furnace, the shielding shoe having a semi-circular recess and can thereby be taken up by a vertical support of the walking beam furnace. The shielding shoe consists essentially of refractory cast concrete or refractory rammed concrete and, according to the invention, has a honeycomb-like structure below the shielding jacket. The present invention also relates to a walking beam furnace with such shielding shoes.

公开(公告)号：US11959153B2

公开(公告)日：2024-04-16

申请号：US17903773

申请日：2022-09-06

申请人： Technological Resources Pty. Limited

发明人： Michael Buckley

IPC分类号： C22B5/10 ,  C21B3/00 ,  C21B11/10 ,  C21B13/00 ,  C21B13/12 ,  C21B15/00 ,  C22B5/00 ,  F27D11/12 ,  F27D19/00 ,  F27D99/00 ,  H05B6/80

CPC分类号： C22B5/10 ,  C21B3/00 ,  C21B11/10 ,  C21B13/004 ,  C21B13/0066 ,  C21B13/12 ,  C21B15/00 ,  C22B5/00 ,  F27D11/12 ,  F27D19/00 ,  H05B6/806 ,  C21B2200/00 ,  F27D2099/0028 ,  Y02P10/122

摘要： A process for direct reduction of iron ore in a solid state includes exposing briquettes of iron ore fragments and biomass to electromagnetic energy under anoxic conditions and generating heat within iron ore in the briquettes. The iron ore is reduced in a solid state within the briquettes, and the biomass provides a source of reductant.

公开(公告)号：US20230375272A1

公开(公告)日：2023-11-23

申请号：US18027488

申请日：2021-09-27

申请人： PAUL WURTH S.A.

发明人： Nicolas MAGGIOLI ,  Gilles KASS ,  Klaus Peter KINZEL

IPC分类号： F27D7/02 ,  F27D3/16 ,  F27B1/16 ,  F27B1/24 ,  F27D99/00

CPC分类号： F27D7/02 ,  F27D3/16 ,  F27B1/16 ,  F27B1/24 ,  F27D99/0073 ,  F27D2007/023 ,  F27D2003/166

摘要： A shaft furnace, in particular a blast furnace, comprises includes an outer metal shell; a plurality of tuyeres arranged to inject hot blast into the shaft furnace; and means for injecting process gas in the shaft stack area, where the injector has a nozzle body with a peripheral wall extending along a longitudinal axis from a front portion, with at least one injection hole, to an opposite rear portion connected to a base member, where the nozzle body includes an inner gas channel for guiding process gas from an inlet port in the base member to the injection holes(s), nozzle body being mounted through an aperture in the metal shell in such a way that the front region with injection hole(s) is located on the inner side of the metal shell, whereas the rear portion is outside of the metal shell, and the base member includes a peripheral mounting portion configured for connecting the injector in a gas tight manner to a mounting unit surrounding the aperture in the metal shell.

公开(公告)号：US20230220990A1

公开(公告)日：2023-07-13

申请号：US18000800

申请日：2021-06-04

申请人： TENOVA S.P.A.

发明人： Davide ASTESIANO ,  Claudio LEONCINI

IPC分类号： F23D14/02 ,  C21D1/52 ,  C21D1/76 ,  C21D11/00 ,  C21D8/02 ,  C21D8/04 ,  C21D9/00 ,  C21D9/48 ,  C21D9/56 ,  C21D9/573 ,  F23D14/22 ,  F27D99/00

CPC分类号： F23D14/02 ,  C21D1/52 ,  C21D1/76 ,  C21D8/0247 ,  C21D8/0447 ,  C21D9/005 ,  C21D9/0006 ,  C21D9/48 ,  C21D9/562 ,  C21D9/573 ,  C21D11/00 ,  F23D14/22 ,  F27D99/0033 ,  F23C2202/10

摘要： A direct flame furnace burner unit for furnaces for the thermo-chemical treatment of steel strips in continuous hot-dip galvanizing plants includes a burner with a combustion head provided with a combustion chamber having an outlet opening of the combustion flame, and a body to which the combustion head is fixed. The body includes a first chamber which is in communication with the combustion chamber, a first lance for the injection of a fuel into the combustion chamber, a mixing chamber provided with at least a first inlet and a second inlet opening which is connectable to a second supply source, at least a second lance for the injection of the mixture into the combustion chamber. The burner is operable in two distinct operating modes, a diffusive flame combustion mode and a premixed flame combustion mode.

公开(公告)号：US20230204290A1

公开(公告)日：2023-06-29

申请号：US18145331

申请日：2022-12-22

申请人： HPSP Co., Ltd.

发明人： Kun Young LIM

IPC分类号： F27D7/02 ,  F27D99/00 ,  F27D7/06

CPC分类号： F27D7/02 ,  F27D99/007 ,  F27D7/06 ,  F27D2001/0059

摘要： Provided is a high pressure heat treatment apparatus including: an internal chamber accommodating an object to be heat-treated; an external chamber including a housing and a partition plate partitioning the housing into a high-temperature zone accommodating the internal chamber and a low-temperature zone having a lower temperature than the high-temperature zone, the partition plate including a discharge hole for allowing the high-temperature zone and the low-temperature zone to communicate with each other; a gas supply module configured to supply a process gas for the heat treatment to the internal chamber at a first pressure higher than that of the atmosphere, and supply a protective gas to the high-temperature zone and the low-temperature zone at a second pressure set in relation to the first pressure; and a discharge module configured to open the discharge hole to discharge the protective gas in the high-temperature zone to the low-temperature zone.

公开(公告)号：US20230002852A1

公开(公告)日：2023-01-05

申请号：US17903773

申请日：2022-09-06

申请人： Technological Resources Pty. Limited

发明人： Michael Buckley

IPC分类号： C22B5/10 ,  C21B15/00 ,  C21B13/00 ,  C21B11/10 ,  H05B6/80 ,  C21B13/12 ,  C22B5/00 ,  F27D19/00 ,  F27D11/12 ,  F27D99/00

摘要： A process for direct reduction of iron ore in a solid state includes exposing briquettes of iron ore fragments and biomass to electromagnetic energy under anoxic conditions and generating heat within iron ore in the briquettes. The iron ore is reduced in a solid state within the briquettes, and the biomass provides a source of reductant.

公开(公告)号：US11536516B2

公开(公告)日：2022-12-27

申请号：US16646045

申请日：2017-09-13

申请人： Hitoshi Sakamoto

发明人： Hitoshi Sakamoto

IPC分类号： F27D3/00 ,  F27B9/02 ,  F27D1/18 ,  C22F1/04 ,  F27D7/04 ,  F27D99/00

摘要： A heat-treating furnace has: a rotary shaft; a rotary bottom surface pivotally supported by the rotary shaft and rotates; a plurality of workpiece storage chambers arranged on the rotary bottom surface in a multi-stage torus configuration around an axis of the rotary shaft as a center; a hollow bell-shaped hot-blast guide disposed in a center of the torus configuration on the rotary bottom surface around the axis of the rotary shaft as a center so as to decrease a volumetric capacity in the furnace and to adjust a quantity of a hot blast fed in from above itself into the workpiece storage chamber on each stage; a furnace body bottom surface spaced away from the rotary bottom surface; and a furnace body lateral surface disposed on the furnace body bottom surface.

公开(公告)号：US20220389536A1

公开(公告)日：2022-12-08

申请号：US17773674

申请日：2020-11-20

申请人： AURUBIS BEERSE

发明人： Mathias Chintinne ,  Yves De Visscher ,  Charles Geenen ,  Bert Coletti

IPC分类号： C22B4/00 ,  C21B13/00 ,  C21B13/12 ,  C21B3/06 ,  C22B5/16 ,  C22B7/04 ,  F27B3/20 ,  F27B3/22 ,  F27D99/00

摘要： Disclosed is a single-chamber furnace for fuming an evaporable metal or metal compound from a metallurgical charge including a bath furnace for containing a molten charge up to a determined level, the furnace being equipped with a non-transferred plasma torch for the generation of plasma and a first submerged injector for injecting the plasma below the determined level, the furnace further including an afterburning zone to form an oxidized form of the at least one evaporable metal or metal compound, and a recovery zone for recovering the oxidized form from the gas formed in the afterburning zone, whereby the furnace is further equipped with a second submerged injector for injecting extra gas into the furnace below the determined level. Further disclosed is the use of the furnace and a process for fuming an evaporable metal or metal compound from a metallurgical charge.

公开(公告)号：US11479837B2

公开(公告)日：2022-10-25

申请号：US15716577

申请日：2017-09-27

申请人： Novelis Inc.

发明人： David Michael Custers

IPC分类号： C22F1/04 ,  B21C47/18 ,  B21C47/34 ,  H05B6/10 ,  B21C47/16 ,  B65H29/00 ,  B65H29/20 ,  B21D22/02 ,  B21D37/16 ,  C21D1/42 ,  F27D99/00 ,  H05B6/32 ,  H05B6/36 ,  B21B39/02 ,  B21B39/34 ,  B21C37/02 ,  C21D1/04 ,  C22C21/02 ,  C22C21/06 ,  C22C21/10 ,  C22C21/12 ,  B65G54/02 ,  C22F1/02 ,  H02N15/00 ,  F27D19/00

摘要： Systems and methods of pre-ageing of a metal strip during metal processing include passing the metal strip adjacent a magnetic rotor of a reheater. The systems and methods also include heating the metal strip through the magnetic rotor by rotating the magnetic rotor. Rotating the magnetic rotor induces a magnetic field into the metal strip such that the metal strip is heated.

公开(公告)号：US11460386B2

公开(公告)日：2022-10-04

申请号：US16360648

申请日：2019-03-21

申请人： King Abdulaziz University

发明人： Mohammed Algarni

IPC分类号： G01N3/18 ,  H05B3/28 ,  F27B17/02 ,  F27D5/00 ,  F27D99/00 ,  G01N25/00 ,  H05B1/02 ,  H05B3/00 ,  F27D21/00 ,  F27B13/08 ,  F27B13/12 ,  F27B13/00

摘要： A specimen heating apparatus includes a heater unit configured to heat a test specimen held in a material testing machine, a heater holding unit configured to hold the heater unit in a set position relative to the test specimen for heating, a specimen temperature measurement unit attached to the heater unit and configured to measure temperature of the test specimen when the heater unit is in the set position, a temperature controller configured to control heating of the heater unit in response to a temperature measured by the specimen temperature measurement unit, and a thermal insulation unit configured to cover the heater unit, wherein the heater holding unit holds the heater unit in such a way that the heater unit is allowed to be brought to and removed from the set position while the test specimen is being held in the material testing machine.