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公开(公告)号：EP1029088B1
公开(公告)日：2001-10-04
申请号：EP98961102.5
申请日：1998-10-26
发明人： SCHMIDT, Martin , LASSNIG, Herbert , WURM, Johann , WIEDER, Kurt , AICHINGER, Georg , ZIEGLER, Josef
摘要： The invention relates to a shaft furnace (1), especially a direct reduction shaft furnace, with a charging stock (2) of lumpy material, especially lumpy material containing iron oxide and/or sponge iron, and conveyor screws (3) for removing the lumpy material from the shaft furnace (1). Said conveyor screws intersperse the shaft furnace casing in which they are mounted and are arranged over the floor area of the shaft furnace (1).
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公开(公告)号：EP1105541B1
公开(公告)日：2002-09-25
申请号：EP99934664.6
申请日：1999-07-12
发明人： KEPPLINGER, Leopold, Werner , WIEDER, Kurt , MIZELLI, Herbert , STOCKINGER, Josef , WURM, Johann , ZAHEDI, Parviz
CPC分类号： C21B13/002 , Y02P10/136
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3.发明授权VERFAHREN ZUM RÜCKFÜHREN EINES AUS EINEM REAKTORGEFÄSS MIT EINEM TRÄGERGAS AUSGETRAGENEN FEINTEILIGEN FESTSTOFFES 失效FOR驾车从与输送气体的反应容器背部方法来传送细颗粒固体
公开(公告)号：EP0953057B1
公开(公告)日：2001-09-19
申请号：EP97945869.2
申请日：1997-10-24
发明人： STOCKINGER, Josef , KASTNER, Rainer, Walter , MAYR, Herbert , LASSNIG, Herbert , HECKMANN, Hado , WIEDER, Kurt , SCHENK, Johannes
CPC分类号： C21B13/0006 , C21B5/023 , C21B13/002 , C21B2100/44 , Y02P10/136 , Y02P10/216
摘要： In a process for returning finely dispersed solids discharged from a reactor vessel (1) with a carrier gas through a discharge point (2) of the reactor vessel (1) to a return point (15) of the reactor vessel (1), the solids are separated in a solid separator (4), in particular a cyclone separator, then returned with a carrier gas to the reactor vessel (1) while a differential pressure is maintained between the solid separator (4) and the return point (15). When the solids enter the reactor vessel (1), they are at least partially gasified and/or burned with oxygen supplied for that purpose. To enable the solids to be returned without moving parts which would be exposed to abrasion, in a continuous and controlled manner, the separated solids are directly and continuously aspirated by the solid separator (4) by means of a propellant gas and by an injector effect, accelerated and supplied to the reactor vessel (1).
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4.发明公开VERFAHREN ZUM RÜCKFÜHREN EINES AUS EINEM REAKTORGEFÄSS MIT EINEM TRÄGERGAS AUSGETRAGENEN FEINTEILIGEN FESTSTOFFES 失效FOR驾车从与输送气体的反应容器背部方法来传送细颗粒固体
公开(公告)号：EP0953057A1
公开(公告)日：1999-11-03
申请号：EP97945869.0
申请日：1997-10-24
发明人： STOCKINGER, Josef , KASTNER, Rainer, Walter , MAYR, Herbert , LASSNIG, Herbert , HECKMANN, Hado , WIEDER, Kurt , SCHENK, Johannes
CPC分类号： C21B13/0006 , C21B5/023 , C21B13/002 , C21B2100/44 , Y02P10/136 , Y02P10/216
摘要： In a process for returning finely dispersed solids discharged from a reactor vessel (1) with a carrier gas through a discharge point (2) of the reactor vessel (1) to a return point (15) of the reactor vessel (1), the solids are separated in a solid separator (4), in particular a cyclone separator, then returned with a carrier gas to the reactor vessel (1) while a differential pressure is maintained between the solid separator (4) and the return point (15). When the solids enter the reactor vessel (1), they are at least partially gasified and/or burned with oxygen supplied for that purpose. To enable the solids to be returned without moving parts which would be exposed to abrasion, in a continuous and controlled manner, the separated solids are directly and continuously aspirated by the solid separator (4) by means of a propellant gas and by an injector effect, accelerated and supplied to the reactor vessel (1).
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公开(公告)号：EP1105542B1
公开(公告)日：2004-01-07
申请号：EP99934663.8
申请日：1999-07-12
发明人： KEPPLINGER, Leopold, Werner , KASTNER, Rainer, Walter , WIEDER, Kurt , SCHIFFER, Wilhelm , STASTNY, Wilhelm
摘要： The invention relates to a shaft furnace, especially a direct reduction shaft furnace, with a charge of lump materials (2), especially materials containing iron oxide and/or spore iron, which can be introduced into the furnace from above and also comprising a plurality of inlets (3) for a reduction gas arranged on a plane in the region of the lower third part of the furnace, whereby the profile of the furnace has an extended diameter (7) and a cavity (8) is formed between the gas inlets (3) and the charge (2). The inventive furnace enables gas to be supplied and distributed in a uniform manner along the periphery of said furnace.
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公开(公告)号：EP1017859B1
公开(公告)日：2002-05-08
申请号：EP98951258.7
申请日：1998-08-26
申请人： Deutsche Voest-Alpine Industrieanlagenbau GmbH , VOEST-ALPINE INDUSTRIEANLAGENBAU GESELLSCHAFT m.b.H.
CPC分类号： C21B13/02 , F27B1/21 , F27D3/0033 , F27D3/08
摘要： A device for producing sponge iron from iron oxide lumps consists of a reduction shaft in which a hot dust laden reducing gas is delivered. Said gas is produced in a gas generator by means of partial oxidation of solid carbon carriers and passes into the lower end of the reduction zone via lateral reduction gas inlets. The iron oxide lumps are fed to the upper area of the reduction shaft and are radially fed as sponge iron to the lower end of said reduction shaft via delivery organs (3). An additional delivery organ for sponge iron is provided within the middle area of the reduction shaft. The additional delivery organ is situated downstream from the surfaces in the reduction shaft base (2), said surfaces being configured between the inner ends of the delivery organ. In addition, a guiding device (6) is arranged between each of the two delivery organs and projects upwards above said organs in such a way that the sponge iron which is falling downwards is guided laterally to the delivery organs and radially to the additional delivery opening. Feed spirals are preferably used as delivery organs. One advantage of the guiding device is that it has an upper edge which runs in a diagonal manner from the additional delivery opening end up to the reduction shaft inner wall and it can be effectively enlarged downward and radially outwards to the width of the facing space between the delivery organs.
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