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2. 发明授权

EP0948654B1 VERFAHREN ZUR HERSTELLUNG VON FLÜSSIGEM ROHEISEN ODER STAHLVORPRODUKTEN SOWIE ANLAGE ZUR DURCHFÜHRUNG DES VERFAHRENS 失效
标题翻译： VERFAHREN ZUR HERSTELLUNG VONFLÜSSIGEMROHEISEN ODER STAHLVORPRODUKTEN SOWIE ANLAGE ZURDURCHFÜHRUNGDES VERFAHRENS
公开(公告)号：EP0948654B1
公开(公告)日：2001-08-01
申请号：EP97942698.8
申请日：1997-10-06
申请人： VOEST-ALPINE INDUSTRIEANLAGENBAU GESELLSCHAFT m.b.H.
发明人： STOCKINGER, Josef , NAGL, Michael
IPC分类号： C21B13/14 , C21B13/00
CPC分类号： C21B13/002 , C21B13/0026 , C21B13/14 , C21B2100/44 , Y02P10/136 , Y02P10/216 , Y10S75/961
摘要： In a method for producing liquid pig iron (10) from fine particle iron-oxide carriers and lumpy ferriferous material in a melt-down gasification area (9) of a melt-down gasifier, the ferriferous material is molten down in the melt-down gasifier along with the feeding of material containing carbon and gas containing oxygen and the simultaneous formation of a reducing gas on a bed (13) formed by solid carbon carriers. The fine-particle iron-oxide carriers, such as ferriferous fine ore and ore dust and oxidic iron fine dust are fed into the reducing gas stream coming out of the melt-down gasifier (3). The reducing gas is then freed from the resulting fine particle material. The released fine particle material is fed into a melt-down gasification area (9) through a dust recycling line (26, 27, 28, 29) by means of a dust burner (30) and the reducing gas for deoxidizing the ferriferous material is drawn in. To be able to use large quantities of fine ore or ore dust in the disclosed method, the released fine particle material in the dust recycling line (26 to 29) is fed to the dust burner (30) through a fluidized bed sluice (25), formed by the released fine particle material and the reducing gas.
摘要翻译：在由熔融气化器的熔化气化区（9）中的细粒氧化铁载体和块状铁质材料生产液态生铁（10）的方法中，所述含铁材料在熔化气化器连同进料含碳和含氧气体的物质，同时在由固体碳载体形成的床（13）上形成还原气体。细粒氧化铁载体如铁矿石细粉和矿粉以及氧化铁细粉被送入从熔化气化器（3）排出的还原气流中。然后将还原气体从所得到的微粒材料中除去。释放的细颗粒材料借助于粉尘燃烧器（30）通过粉尘再循环管线（26,27,28,29）进入熔化气化区域（9），并且用于使含铁材料脱氧的还原气体是为了能够在所公开的方法中使用大量的细矿石或矿石粉尘，将粉尘再循环管线（26至29）中的释放的细颗粒材料通过流化床闸门供给至粉尘燃烧器（30）（25），由释放的细粒材料和还原气体形成。

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