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1. 发明公开

EP4237775A1 MULTI-HALF PIPE HEAT EXCHANGE SYSTEM FOR ELECTRIC ARC, METALLURGICAL OR REFINING FURNACES AND SYSTEM THEREOF 审中-实审
公开(公告)号：EP4237775A1
公开(公告)日：2023-09-06
申请号：EP21887704.1
申请日：2021-11-01
申请人： Amerifab, Inc.
发明人： MANASEK, Richard, J.
IPC分类号： F27B1/22 , C21B7/00 , F28D21/00

2. 发明公开

EP4141130A1 BLAST FURNACE OPERATION METHOD AND AUXILIARY FACILITY FOR BLAST FURNACE 有权
公开(公告)号：EP4141130A1
公开(公告)日：2023-03-01
申请号：EP21792587.4
申请日：2021-01-07
申请人： JFE Steel Corporation
发明人： TAKAHASHI, Koichi , NOUCHI, Taihei , OZAWA, Sumito , KAWASHIRI, Yuki , MORITA, Yuya
IPC分类号： C21B5/00 , C21B7/00
摘要： Provided is a method of operating a blast furnace, including separating carbon dioxide gas from a by-product gas discharged from the blast furnace, generating a regenerative methane gas from the carbon dioxide gas, and blowing a blast gas and a reducing agent into the blast furnace from a tuyere, in which the blast gas is oxygen gas and the regenerative methane gas is used as at least part of the reducing agent.

3. 发明公开

EP4067508A1 BLAST FURNACE OPERATION METHOD AND BLAST FURNACE ANCILLARY EQUIPMENT 审中-公开
公开(公告)号：EP4067508A1
公开(公告)日：2022-10-05
申请号：EP20891789.8
申请日：2020-11-11
申请人： JFE Steel Corporation
发明人： TAKAHASHI, Koichi , NOUCHI, Taihei , OZAWA, Sumito , KAWASHIRI, Yuki , MORITA, Yuya
IPC分类号： C21B5/00 , C21B7/00
摘要： Provided is a method of operating a blast furnace, having generating a regenerative methane gas from a by-product gas discharged from the blast furnace, and blowing a blast gas and a reducing agent into the blast furnace from a tuyere of the blast furnace in which the blast gas is oxygen gas and the regenerative methane gas is used as at least part of the reducing agent.

4. 发明公开

EP3951351A1 PARTICLE SIZE DISTRIBUTION MONITORING DEVICE, PARTICLE SIZE DISTRIBUTION MONITORING METHOD, COMPUTER PROGRAM, FURNACE, BLAST FURNACE, FURNACE CONTROL METHOD, AND BLAST FURNACE OPERATION METHOD 审中-公开
公开(公告)号：EP3951351A1
公开(公告)日：2022-02-09
申请号：EP20782803.9
申请日：2020-03-17
申请人： JFE Steel Corporation
发明人： YAMAHIRA, Naoshi
IPC分类号： G01N15/02 , C21B5/00 , C21B7/00
摘要： The present invention makes is possible to ascertain the particle size distribution of inserted material each time material has been inserted. Tha particle size distribution monitoring device according to the present invention comprises an information acquisition device for, at least once each time material has been inserted, acquiring information for identifying the particle size distribution of the inserted material and an information processing device for processing the information. The information processing device comprises a particles size distribution identification unit for identifying a particles size distribution each time material has been inserted on the basis of the information acquired by the information acquisition unit at least once each time material has been inserted and a particle size distribution display unit for visualizing the particle size distributions that have been identified by the particle size distribution identification unit each time material has been inserted, associating the visualized particle size distributions for each time material has been inserted with each time material has been inserted, and displaying the same on a screen.

5. 发明授权

EP3720976B1 CHARGING SYSTEM, IN PARTICULAR FOR A SHAFT SMELT REDUCTION FURNACE 有权
公开(公告)号：EP3720976B1
公开(公告)日：2021-08-25
申请号：EP18811569.5
申请日：2018-12-06
发明人： HUTMACHER, Patrick , SCHONS, Stefan , STEICHEN, Charles , HOUBART, Michel
IPC分类号： C21B5/00 , F27B1/00 , F27D3/00 , C21B7/00 , C21B7/02 , C21B13/02 , F27B1/20

6. 发明授权

EP2410065B1 BLAST FURNACE OPERATION METHOD 有权
公开(公告)号：EP2410065B1
公开(公告)日：2019-06-05
申请号：EP10769862.3
申请日：2010-04-30
申请人： JFE Steel Corporation
发明人： ASANUMA, Minoru , NOUCHI, Taihei , SATO, Takeshi , MURAO, Akinori , TAKEUCHI, Naoyuki
IPC分类号： C21B5/00 , C21B5/06 , C21B7/00 , C21B7/16 , C21B9/14

7. 发明公开

EP3375893A1 BLEEDER VALVE FOR PRESSURIZED FURNACE 审中-公开
公开(公告)号：EP3375893A1
公开(公告)日：2018-09-19
申请号：EP17160652.8
申请日：2017-03-13
申请人： Danieli Corus BV
发明人： Domin, Oleksandr , de Koning, Maurice Philipe , Nobel, Willem Teunis , Klut, Pieter Dirk , Vaynshteyn, Roman
IPC分类号： C21B7/00
CPC分类号： C21B7/005
摘要： A bleeder valve (300) for controlling a gas outflow from the interior of a pressurized container (302) to an ambient atmosphere through an exhaust conduit (303) comprises: a valve seat (309) associated with said exhaust conduit (303), a movable lid (311) having a central closure portion (313) and a peripheral sealing surface (315) cooperating with said valve seat (309), and an actuating mechanism (316) connected to said lid (311) for moving said lid between a closed position on said valve seat and an open position distant from said valve seat. The lid comprises a deflection portion (317) at the periphery of said sealing surface. The deflection portion comprises a deflection surface (318) inclined relative to a tangent (Tsl) to said sealing surface (315) by an included angle (α) less than 180 degrees for imparting to a gas outflow passing between said valve seat (309) and said lid (311) a velocity component which is perpendicular or opposite to the initial opening movement of said lid. The central closure portion (313) is recessed with respect to said sealing surface (315).

8. 发明授权

EP2796566B1 BLAST FURNACE OPERATION METHOD 有权
公开(公告)号：EP2796566B1
公开(公告)日：2018-08-29
申请号：EP12860851.0
申请日：2012-03-01
申请人： JFE Steel Corporation
发明人： FUJIWARA, Daiki , MURAO, Akinori , WATAKABE, Shiro
IPC分类号： C21B5/00 , C21B7/00 , C21B7/16
CPC分类号： C21B5/003 , C21B7/163
摘要： A lance 4 for injecting a fuel through a tuyere 3 is a double tube. Pulverized coal is injected through an inner tube 21 of the double wall lance 4. Oxygen is injected through an outer tube 22 of the double wall lance 4. Notches 23 are formed in a injecting front end of the inner tube 21 of the double wall lance 4. The concentration of oxygen in a gas composed of a carrier gas for the pulverized coal and a gas injected through the outer tube is 35% by volume or more. Even in an operation using pulverized coal having a volatile matter content of 25 mass% or less at a high pulverized coal ratio of 150 kg/t or more, the combustion temperature can be increased, and consequently CO 2 emissions can be reduced. The specific oxygen consumption can be suppressed by decreasing the oxygen concentration to less than 70% by volume. The notches 23 may be circumferentially evenly spaced in the inner tube 21 of the double wall lance 4 and further improve combustion efficiency.

9. 发明公开

EP3336037A1 A SYSTEM COMPRISING A ROTATABLE WORK PLATFORM 有权
公开(公告)号：EP3336037A1
公开(公告)日：2018-06-20
申请号：EP16397535.2
申请日：2016-12-14
申请人： Scanclimber Oy
发明人： Matikainen, Pekka , Koskensalo, Kimmo
IPC分类号： B66B9/187 , B66F11/04 , C21B7/00 , E04G1/18 , F27D1/16
摘要： A rotatable work platform system comprising: a substantially vertical mast structure (1); a frame structure (80) which is connected to the mast structure (1) and adapted to move up and down along the mast structure (1). The system further comprises: a rotating frame (40) attached to the frame structure (80) and adapted to rotate around the frame structure (80) and the mast structure (1); and a work platform (10) connected to the rotating frame (40) for providing rotating motion of the work platform (10) around the mast structure (1). The rotating frame (40) and the frame structure (80) comprise openings (43, 83) which enable the rotating frame (40) and the frame structure (80) to ascend and descend along the mast structure (1) past one or more supports (50) immovably attached to the mast structure (1).

10. 发明公开

EP2410065A4 BLAST FURNACE OPERATION METHOD 有权
标题翻译： BETRIEBSVERFAHRENFÜREINEN VERBRENNUNGSOFEN
公开(公告)号：EP2410065A4
公开(公告)日：2017-06-07
申请号：EP10769862
申请日：2010-04-30
申请人： JFE STEEL CORP
发明人： ASANUMA MINORU , NOUCHI TAIHEI , SATO TAKESHI , MURAO AKINORI , TAKEUCHI NAOYUKI
IPC分类号： C21B5/00 , C21B5/06 , C21B7/00 , C21B7/16 , C21B9/14
CPC分类号： C21B7/163 , C21B5/06 , C21B7/007 , C21B9/14 , C21B2100/64 , C21C2250/02 , Y02P10/216 , Y02P10/283
摘要： In a blast furnace operation in which air or oxygen-enriched air is blown from tuyeres, upon letting a throat radius be R 0 , a position at a depth of R 0 from a stock line be p 1 , and a position at 1/3 of the overall height of a shaft from the lower end of the shaft be p 2 , a preheating gas "g" is injected into the furnace from a gas injection portion "A" arranged between the positions p 1 and p 2 in the height direction of the furnace. It is possible to prevent the occurrence of inappropriate furnace conditions during low-RAR operation, in particular, an inadequate increase in the temperature of burden materials in an upper portion of the furnace. Furthermore, the stability of the descent of raw materials can be maintained without causing fluidization or stirring of charged layers of the raw materials due to the injection of the gas from the shaft. The preheating gas is injected from gas injection portions A at a linear velocity of 102 (m/s) or less.
摘要翻译：在从风口吹入空气或富氧空气的高炉操作中，当喉部半径为R 0时，距离料线的深度为R 0的位置为p 1，并且在1/3 从轴的下端到轴的总高度为p 2时，从位于高度方向上的位置p 1和p 2之间的气体注入部分“A”向炉内注入预热气体“g” 的炉子。可以防止在低RAR操作期间出现不适当的炉条件，特别是在炉上部的负载材料的温度不适当增加。此外，由于从轴中注入气体，可以保持原材料下降的稳定性，而不引起原材料带电层的流化或搅拌。预热气体以102（m / s）以下的线速从气体喷射部A喷射。

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