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1.发明公开VERFAHREN ZUR DIREKTREDUKTION VON EISENOXIDHÄLTIGEM MATERIAL 失效VERFAHREN ZUR DIREKTREDUTRON VONEISENOXIDHÄLTIGEMMATERIAL
公开(公告)号：EP0766748A1
公开(公告)日：1997-04-09
申请号：EP95920705.0
申请日：1995-06-20
CPC分类号： C21B13/0073 , C21B2100/22 , C21B2100/282 , Y02P10/122 , Y02P10/136 , Y02P10/143
摘要： A direct reduction process is disclosed for iron oxide-containing materials. Synthesis gas is mixed with top gas produced during direct reduction of the iron oxide-containing materials and is used as reduction gas for directly reducing iron oxide-containing materials. In order to avoid or reduce metal dusting caused by an increased CO content of the reduction gas with a simple technique and equipment, the CO/CO2 ratio of the reduction gas is set at a predetermined value from 1 to 3.
摘要翻译： 公开了一种用于含氧化铁材料的直接还原方法。 合成气与直接还原含氧化铁物质过程中产生的顶部气体混合，并用作直接还原含氧化铁物质的还原气体。 为了通过简单的技术和设备避免或减少由还原气体的CO含量增加引起的金属粉化，将还原气体的CO / CO 2比率设定为1至3的预定值。
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公开(公告)号：EP0766748B1
公开(公告)日：1999-12-15
申请号：EP95920705.1
申请日：1995-06-20
CPC分类号： C21B13/0073 , C21B2100/22 , C21B2100/282 , Y02P10/122 , Y02P10/136 , Y02P10/143
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3.发明授权
公开(公告)号：EP0840806B1
公开(公告)日：2001-10-04
申请号：EP96922679.4
申请日：1996-07-18
申请人： VOEST-ALPINE INDUSTRIEANLAGENBAU GMBH , POHANG IRON & STEEL CO., LTD. , RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY, INCORPORATED FOUNDATION
IPC分类号： C21B13/00
CPC分类号： C21B13/002 , C21B13/14 , C21B2100/44 , Y02P10/136
摘要： In a process for producing liquid pig iron (24) or intermediate steel products form finely divided iron-containing material (5) in a melt gasification region of a melt gasifier (1), the iron-containing material (5) is melted on passing through the bed (27) consisting of solid carbon carriers (16', 16'') with the supply of carbon-containing material and oxygen-containing gas and with the simultaneous generation of a reducing gas. In order to be able to implement the process with a charge consisting of up to 100 % fine ore, while reliably preventing the separation of the fine ore fed, an inlet (18) for the finely divided coal (19), like coal dust and/or other carbon-containing materials with volatile components, and a line (21) supplying an oxygen-containing gas open in the vicinity of the reducing gas outlet (2, 17) of themelt gasifier (1), the finely divided coal (19) and/or other carbon-containing materials with volatile components are converted on entering the melt gasifier (1) into finely divided coke (19'), which is extracted together with the reducing gas taken from the melt gasifier (1) and separated in a separator (3).
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4.发明授权
公开(公告)号：EP0787213B1
公开(公告)日：2004-04-14
申请号：EP96922678.6
申请日：1996-07-18
申请人： VOEST-ALPINE INDUSTRIEANLAGENBAU GMBH , POHANG IRON & STEEL CO., LTD. , RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY, INCORPORATED FOUNDATION
IPC分类号： C21B13/00
CPC分类号： C21B13/002 , C21B2100/44 , Y02P10/136
摘要： In a process for producing liquid raw iron (23) or semi-finished steel products from finely divided iron-containing material (15) in a melt gasification region of a melt gasifier (1), the iron-containing material (15) is melted on passing through the bed (26) with the simultaneous formation of a reducing gas in a bed (26) consisting of solid carbon carriers. In order to be able to operate the process with an addition consisting of up to 100 % fine ore, while reliably preventing the separation of the fine ore added, a high temperature burning and/or gasification region (27) is formed in a deoxidising region (III) above the bed (26) by the burning and/or gasification of carbon-containing material (16', 16'') with the direct supply of oxygen, into which the finely divided iron-containing material (15) is fed directly, whereby at least a surface melting of the iron-containing material (15) and its agglomeration are effected by means of the heat released on the reaction of the carbon-containing material (16', 16'').
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5.发明公开
公开(公告)号：EP0787213A1
公开(公告)日：1997-08-06
申请号：EP96922678.0
申请日：1996-07-18
申请人： VOEST-ALPINE INDUSTRIEANLAGENBAU GMBH , POHANG IRON & STEEL CO., LTD. , RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY, INCORPORATED FOUNDATION
CPC分类号： C21B13/002 , C21B2100/44 , Y02P10/136
摘要： In a process for producing liquid raw iron (23) or semi-finished steel products from finely divided iron-containing material (15) in a melt gasification region of a melt gasifier (1), the iron-containing material (15) is melted on passing through the bed (26) with the simultaneous formation of a reducing gas in a bed (26) consisting of solid carbon carriers. In order to be able to operate the process with an addition consisting of up to 100 % fine ore, while reliably preventing the separation of the fine ore added, a high temperature burning and/or gasification region (27) is formed in a deoxidising region (III) above the bed (26) by the burning and/or gasification of carbon-containing material (16', 16'') with the direct supply of oxygen, into which the finely divided iron-containing material (15) is fed directly, whereby at least a surface melting of the iron-containing material (15) and its agglomeration are effected by means of the heat released on the reaction of the carbon-containing material (16', 16'').
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6.发明公开
公开(公告)号：EP0840806A1
公开(公告)日：1998-05-13
申请号：EP96922679.0
申请日：1996-07-18
申请人： VOEST-ALPINE INDUSTRIEANLAGENBAU GMBH , POHANG IRON & STEEL CO., LTD. , RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY, INCORPORATED FOUNDATION
CPC分类号： C21B13/002 , C21B13/14 , C21B2100/44 , Y02P10/136
摘要： In a process for producing liquid pig iron (24) or intermediate steel products form finely divided iron-containing material (5) in a melt gasification region of a melt gasifier (1), the iron-containing material (5) is melted on passing through the bed (27) consisting of solid carbon carriers (16', 16'') with the supply of carbon-containing material and oxygen-containing gas and with the simultaneous generation of a reducing gas. In order to be able to implement the process with a charge consisting of up to 100 % fine ore, while reliably preventing the separation of the fine ore fed, an inlet (18) for the finely divided coal (19), like coal dust and/or other carbon-containing materials with volatile components, and a line (21) supplying an oxygen-containing gas open in the vicinity of the reducing gas outlet (2, 17) of themelt gasifier (1), the finely divided coal (19) and/or other carbon-containing materials with volatile components are converted on entering the melt gasifier (1) into finely divided coke (19'), which is extracted together with the reducing gas taken from the melt gasifier (1) and separated in a separator (3).
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