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1. 发明公开

EP4389918A1 EINSTELLUNG DES KOHLENSTOFFGEHALTS IN DIREKTREDUZIERTEM EISEN 审中-公开
公开(公告)号：EP4389918A1
公开(公告)日：2024-06-26
申请号：EP23168511.6
申请日：2023-04-18
申请人： Primetals Technologies Austria GmbH
发明人： Hiebl, Bernhard , Rein, Norbert , Wurm, Johann , Zellinger, Karl-Heinz
IPC分类号： C21B13/00 , C21B13/12
CPC分类号： C21B13/0033 , C21B13/004 , C21B13/0046 , C21B13/0073 , C21B13/008 , C21B13/12 , C21B13/0086
摘要： Verfahren zum Einbringen von Kohlenstoff in direktreduziertes Eisen DRI (20), wobei dem DRI (20) zumindest ein fester Kohlenstoffträger zugegeben wird.

2. 发明公开

EP2487266A4 MOLTEN METAL PRODUCING DEVICE 审中-公开
标题翻译：设备技术生产熔融金属
公开(公告)号：EP2487266A4
公开(公告)日：2015-08-26
申请号：EP10822143
申请日：2010-10-08
申请人： KOBE STEEL LTD
发明人： TETSUMOTO MASAHIKO
IPC分类号： C21B13/10 , C21B11/10 , C21B13/02 , C21B13/12 , F27B3/08 , F27B3/18 , F27B3/22 , F27D3/00 , F27D3/04 , F27D3/16 , F27D25/00
CPC分类号： F27B3/085 , C21B13/006 , C21B13/026 , C21B13/10 , C21B13/12 , C21C5/562 , C22B7/02 , F27B3/18 , F27B3/225 , F27D3/04 , F27D3/16 , F27D25/00 , Y02P10/216
摘要： Disclosed is a molten metal producing device capable of effectively preventing a hanging of a metal agglomerate raw material layer and capable of reliably removing hanging even if the hanging occurs. Raw material for forming the raw material layer (A) and metal agglomerate raw material (B) are charged in this order from raw material charging chutes (4,4) at either end portion (2,2) of a stationary non-tilting arc furnace in the width direction of the furnace so as to form raw material layers (12) each having a sloping surface extending downward to the portions of electrodes (5) disposed in a central region in the furnace width direction and metal agglomerate raw material layers (13) on the slopes, respectively. Molten iron is produced by sequentially melting lower end portions of the metal agglomerate raw material layers (13) by arc heating at the electrodes (5). At the same time, an oxygen containing gas (C) is blown from secondary combustion burners (6) in a furnace top (1) so as to cause the combustion of a CO containing gas generated from the metal agglomerate raw material layers (13) while the metal agglomerate raw material layers (13) descend along the sloping surface of the raw material layer (12), and the metal agglomerate raw material layers (13) are heated by the radiant heat of the secondary combustion. Shock generators (18) are disposed above a molten slag layer (15) and below surfaces of the metal agglomerate raw material layers (13) inside the furnace.

3. 发明公开

EP2800823A1 A METHOD FOR MELTING STEEL 有权转让
标题翻译：法熔炼钢
公开(公告)号：EP2800823A1
公开(公告)日：2014-11-12
申请号：EP12704373.5
申请日：2012-01-03
申请人： ABB Research Ltd.
发明人： BEL FDHILA, Rebei , ERIKSSON, Jan- Erik , HJORTSTAM, Olof , RAHMANI, Mohamed Ali , SANDER-TAVALLAEY, Shiva , WIDLUND, Ola , YANG, Hongliang , ZHANG, Xiaojing
IPC分类号： C21C5/52
CPC分类号： C22B9/20 , C21B13/12 , C21B2300/04 , C21C5/527 , C21C7/00 , C21C2005/5276 , C21C2005/5288 , C21C2300/06 , F27D27/00 , F27D2019/0003 , Y02P10/216 , Y02P10/286
摘要： The present invention relates to a method for melting steel in an electric arc furnace (EAF). A hot heal (15) is provided in the EAF. Metal scrap (16) is loaded into the EAF. The metal scrap(16)is melted in the EAF. According to the invention the mass of the hot heel (15) in relation to the mass of the metal scrap that is initially beyond the surface of the hot heel is a certain minimum. This minimum is 0,75 times the relation between the heat required to melt the metal scrap beyond the surface of the hot heel (15) and the het that can be taken from the hot heel without it being solidified when a theoretical heat balance calculation is applied as defined in a formula.

4. 发明公开

EP2190622A4 DIRECT PROCESSING OF FERROTITANIA ORES AND SANDS 审中-公开
标题翻译：钛铁矿和-SANDEN直接加工
公开(公告)号：EP2190622A4
公开(公告)日：2012-04-18
申请号：EP08829218
申请日：2008-08-12
申请人： CARDERO RESOURCE CORP
发明人： HOFFMAN GLENN E
IPC分类号： B23K35/24 , C21B13/00 , C22B34/12
CPC分类号： C22B1/245 , C21B11/10 , C21B13/0013 , C21B13/12 , C21B2100/62 , C21B2100/66 , C21C5/527 , C21C2007/0062 , C22B4/00 , C22B5/10 , C22B5/16 , C22B13/02 , C22B19/04 , C22B19/10 , C22B19/18 , C22B34/12 , Y02P10/136 , Y02P10/216

5. 发明授权

EP2057294B1 A METHOD FOR THE COMMERCIAL PRODUCTION OF IRON 有权
标题翻译：法铁工业生产
公开(公告)号：EP2057294B1
公开(公告)日：2011-04-20
申请号：EP07825975.1
申请日：2007-07-31
申请人： Iron Mineral Beneficiation Services (Proprietary) Limited
发明人： PRETORIUS, Gerard , OLDNALL, Derek Roy
IPC分类号： C21B13/08 , C21B13/00
CPC分类号： C21B13/14 , C21B13/004 , C21B13/08 , C21B13/12 , F27B7/00
摘要： A method for the production of iron from an iron oxide-containing material includes contacting an iron oxide-containing material with a particle size distribution range with a ∂90 of less than 2mm, with a carbon-containing material with a particle size distribution range with a ∂90 of less than 6mm, in a commercial scale reactor at a temperature of between 900°C and 1200°C for a contact time sufficient to reduce the iron oxide to iron.

6. 发明公开

EP2270239A1 PROCESS FOR PRODUCING MOLTEN METAL 有权
标题翻译： HERSTELLUNGSVERFAHRENFÜRFLÜSSIGES金属
公开(公告)号：EP2270239A1
公开(公告)日：2011-01-05
申请号：EP09735934.3
申请日：2009-04-22
申请人： Kabushiki Kaisha Kobe Seiko Sho
发明人： The designation of the inventor has not yet been filed
IPC分类号： C21B11/10 , C21B13/12 , F27B3/08 , F27B3/18 , F27D17/00
CPC分类号： F27B3/08 , C21B11/10 , C21B13/12 , C21C5/5217 , C21C5/527 , F27B3/18 , F27D17/00 , Y02P10/216 , Y02P10/283
摘要： A method for manufacturing molten metal by using a stationary non-tilting electric furnace including: a raw material charging chute that is provided in one end of the furnace in the width direction, and is connected to the interior of the furnace from the upper part of the furnace, an electrical heater that heats a lower position of the furnace in the height direction is located in the other end of the furnace in the width direction, and a secondary combustion burner that is provided at the furnace top and between the two ends of the furnace. The method comprising: forming a raw material layer by charging a particular amount of a carbonaceous material and/or metal oxide agglomerates with carbonaceous material containing a nonvolatile metal element that forms molten metal into the furnace from the raw material charging chute, and having a sloping surface extending downward from the one end of the furnace toward the other end of the; subsequently forming an agglomerate layer on the sloping surface of the raw material layer by charging a particular amount of the metal oxide agglomerates with carbonaceous material into the furnace from the raw material charging chute; and subsequently forming a molten metal layer and a molten slag layer in the furnace by heating the lower end of the agglomerate layer with the heater while allowing the agglomerate layer to descend along the sloping surface of the raw material layer toward the lower end by melting; and concurrently thermally reducing the agglomerate layer by radiant heat from secondary combustion by blowing oxygen-containing gas into the furnace from secondary combustion burner to burn CO-containing gas generated from the agglomerate layer.
摘要翻译：一种通过使用静止非倾斜电炉来制造熔融金属的方法，包括：在宽度方向上设置在炉的一端的原料装料槽，并从炉的上部连接到炉的内部炉子，加热炉的高度方向的下部位置的电加热器位于炉宽度方向的另一端，并且二次燃烧器设置在炉顶部和两端之间炉子。该方法包括：通过将含有特定量的含碳材料和/或金属氧化物附聚物的碳质材料与含有形成熔融金属的非挥发性金属元素的材料从原料装料槽装入炉中，形成原料层，并具有倾斜从炉的一端朝向另一端向下延伸的表面; 随后通过从原料装料槽将特定量的含碳材料的金属氧化物附聚物装入炉中，在原料层的倾斜表面上形成附聚层; 随后通过用加热器加热附聚层的下端，同时使凝聚层沿着原料层的倾斜表面向下端熔化而在炉内形成熔融金属层和熔渣层; 同时通过从二次燃烧器向含有炉内的含氧气体吹入二次燃烧产生的含CO气体同时通过二次燃烧的辐射热来热还原附聚物层。

7. 发明公开

EP1658467A1 ELEKTROREDUKTIONSOFEN 有权
标题翻译：电炉还原
公开(公告)号：EP1658467A1
公开(公告)日：2006-05-24
申请号：EP04740124.5
申请日：2004-06-21
申请人： SMS Demag Aktiengesellschaft
发明人： KUNZE, Jürgen
IPC分类号： F27D3/00 , F27D3/14 , C21C5/00 , C21C5/52 , C21C5/54 , C22B7/04
CPC分类号： F27B3/18 , C21B11/10 , C21B13/12 , C21C5/527 , C22B4/00 , C22B4/08 , C22B5/10 , C22B7/04 , C22B15/0054 , F27D3/10 , F27D17/001 , F27D17/008 , Y02P10/136 , Y02P10/216
摘要： The invention relates to an electric reducing furnace (1) for carrying out reduction processes, particularly for reducing slag in order to recover metallic constituents. The electric reducing furnace operates with electrical energy that is fed into the furnace interior (Oi) via at least one electrode. The reducing furnace (1), while having an air-sealed design, comprises a charging opening (3) for charge stock, which is conveyed via a charging device (4), whereby the charging opening also simultaneously serves as a waste gas exhaust opening (3) for the resulting gas.

8. 发明授权

EP1025267B2 VERFAHREN ZUM SCHMELZEN VON FEINKÖRNIGEM, DIREKT REDUZIERTEM EISEN IN EINEM ELEKTROLICHTBOGENOFEN 有权
标题翻译：方法细粒，直接还原铁融化电弧炉
公开(公告)号：EP1025267B2
公开(公告)日：2004-09-15
申请号：EP98952689.2
申请日：1998-10-02
申请人： Outokumpu Oyj
发明人： EICHBERGER, Heinz , SCHIMO, Siegfried , STROEDER, Michael , WELLS, William
IPC分类号： C21C5/52 , F27B3/18
CPC分类号： C21B13/14 , C21B13/0026 , C21B13/12 , C21C5/527 , Y02P10/216
摘要： According to the invention, direct reduced iron of at least 80 wt. % and having a maximum grain size of 3 mm is smelted in an electric arc furnace. The furnace contains a bath comprised of liquid iron. During operation of the furnace, a foamed slag layer forms on the bath. The direct reduced iron falls into the foamed slag layer and onto the iron bath through at least one movable lance by means of gravitational force. The distance of the lance opening from the iron bath is preferably maintained in an approximately constant manner.

9. 发明授权

EP1232288B1 VERFAHREN ZUM VORWÄRMEN UND ZUM KONTINUIERLICHEN EINBRINGEN EINER CHARGE IN EINEN ELEKTROLICHTBOGENOFEN 有权
标题翻译：方法预热和连续引入装药电弧炉
公开(公告)号：EP1232288B1
公开(公告)日：2003-06-25
申请号：EP00974544.9
申请日：2000-11-16
申请人： SMS Demag AG
发明人： GERMERSHAUSEN, Thomas , DEPPNER, Karl-Heinz
IPC分类号： C21C5/52 , C21B13/14 , F27D17/00 , F27D13/00
CPC分类号： F27D13/002 , C21B13/0086 , C21B13/12 , C21B13/14 , C21C5/527 , F27D7/02 , F27D21/0035 , F27D99/0033 , Y02P10/216

10. 发明公开

EP1099767A4 METHOD AND DEVICE FOR INDUCTION-HEATING AND MELTING METAL OXIDES-CONTAINING POWDER AND GRANULAR MATERIAL 审中-公开
标题翻译：感应式加热和熔化粉末和粒状材料的方法和设备所含金属氧化物
公开(公告)号：EP1099767A4
公开(公告)日：2002-07-24
申请号：EP00922927
申请日：2000-05-01
申请人： KANSA KEN
发明人： KANSA KEN , MUKOUYAMA YOSHIHIDE
IPC分类号： B09B3/00 , C21B13/12 , C22B5/02 , C22B7/00 , C22B7/02 , C22B9/00 , C22B9/02 , C22B9/22 , F27B14/14 , H05B6/10 , C21B15/00 , C22B4/00 , C22B9/04 , C22B13/00 , C22B19/00
CPC分类号： C21B13/12 , C22B5/02 , C22B7/003 , C22B9/003 , Y02P10/212 , Y02P10/253
摘要： A device (1) for induction-heating and melting metal oxides-containing powder and granular material, which can suitably remove metals in burned ash and flying ash to render them harmless, recover metals with high purities and recovery rates and is high in equipment productivity and low in running costs, the device comprising an enclosed hopper (2), a heat-resistant pipeline (3) for supplying powder and granular material to an induction-heating pipe (5) therefrom, the dielectric induction-heating pipe (5) vertically slidably in contact with the lower end of the heat-resistant pipeline and its vertically driving mechanism (5A), a receiver (6) for receiving molten liquid of the powder and granular material melted in the induction-heating pipe (or a filler (60) for receiving the liquid of powder and granular material melted in the same pipe), a cylindrical upper vacuum chamber (8) for enclosing them, induction-heating coils (10) for surrounding the lower portion of the cylindrical upper vacuum chamber, an electric dust collector (4) located at the upper portion in the vacuum chamber, an inclined pan (11) for relaying molten liquid overflowing the receiver (6) to flow down (flowing down from the filler (6)) and its inclining mechanism (11), a molten liquid storing tank (12) for receiving and storing molten liquid flowing down from the inclined pan, and a lower vacuum chamber (16) for enclosing the inclined pan and the molten liquid storing tank and communicating with the lower end of the upper vacuum chamber.
摘要翻译：一种用于感应加热熔融处理的金属氧化物粉末设备1包括一个封闭的料斗2的，具有耐热性的配管3，用于供给粉末感应加热管5，在诱导其由加热管5，在所有介电材料的并且与在垂直方向滑动的方式耐热管的下端部接触，一个升/降驱动机构5A的感应加热管，接收容器6（或填料60），其接收粉末的熔体并已熔化的感应加热管，圆筒状的上真空室8，其包围上述组分到感应加热线圈10，其在外部环绕所述圆柱形上部真空腔室的下部，向电集尘部件的如图4所示，在圆筒形上部真空腔室的内部，倾斜盘11，该中继熔体没有溢出，并从接收容器6（或填料60）流下，倾斜米的上部处理完毕 echanism 11为倾斜锅，熔体储罐12，其接收和存储该熔体从倾斜锅，和下真空室16，其与包围倾斜盘和熔体储槽和连通那样向下流动圆筒形上部真空腔室的下端。

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