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    • 9. 发明授权
    • Plant for producing molten pig iron or molten steel pre-products
    • 用于生产熔融生铁或钢水预制品的设备
    • US5535991A
    • 1996-07-16
    • US461711
    • 1995-06-05
    • Werner KepplingerPanajiotis MatzawrakosJohannes SchenkDieter SiukaChristian Bohm
    • Werner KepplingerPanajiotis MatzawrakosJohannes SchenkDieter SiukaChristian Bohm
    • C22B1/14C21B5/00C21B11/00C21B11/02C21B13/00C21B13/14F27B1/20F27B1/21F27B15/10F27B15/14F27D3/10F27D13/00C22B5/14
    • C21B13/14C21B13/002Y02P10/122Y02P10/136Y02P10/265Y02P10/283
    • A process for producing molten pig iron or molten steel pre-products from charging substances formed of iron ores and fluxes and at least partially comprising fines, wherein the charging substances are directly reduced to sponge iron in at least one reduction zone by the fluidized layer process, the sponge iron is melted in a melting-gasifying zone under supply of carbon carriers and oxygen-containing gas, and a CO and H.sub.2 -containing reducing gas is produced, which is injected into the reduction zone, is reacted there, is withdrawn as an export gas and is supplied to a consumer, is to be improved with a view to rendering feasible the use of fine ore in an economic manner. This is effected in thatprimarily hematite and/or magnetite fine ores and/or ore dusts are subjected to preheating by the fluidized layer process in a preheating zone,the thus preheated charging substances are completely reduced to a major extent in at least one consecutively arranged reduction zone,whereupon at least the more finely particulate charging substances are charged into the fluidized bed and/or, if desired, also into the fixed bed, of the melting-gasifying zone by forced conveyance, preferably by pneumatic conveyance, and are melted there.
    • 一种从由铁矿石和助熔剂形成的至少部分包含细粉的装料物质生产熔融生铁或钢水预制物的方法,其中所述带电物质通过流化层方法直接还原成至少一个还原区中的海绵铁 在供给碳载体和含氧气体的情况下,在熔融气化区中熔融海绵铁,并且将注入还原区的CO和H 2还原气体在其上反应,作为 要向消费者提供出口天然气,并进行改善,以便以经济的方式使细矿石成为可能。 这是因为主要是赤铁矿和/或磁铁矿细矿石和/或矿石粉尘通过预热区域中的流化层工艺进行预热,因此预热的带电物质在至少一个连续布置 因此,优选通过强制输送,优选通过气动输送将至少更细粒度的带电物质装入熔融气化区的流化床和/或如果需要也进入固定床,并在那里熔化 。
    • 10. 发明授权
    • Process for producing molten pig iron or molten steel pre-products
    • 生产生铁水或钢水预制品的工艺
    • US5534046A
    • 1996-07-09
    • US461710
    • 1995-06-05
    • Werner KepplingerPanajiotis MatzawrakosJohannes SchenkDieter SiukaChristian Bohm
    • Werner KepplingerPanajiotis MatzawrakosJohannes SchenkDieter SiukaChristian Bohm
    • C22B1/14C21B5/00C21B11/00C21B11/02C21B13/00C21B13/14F27B1/20F27B1/21F27B15/10F27B15/14F27D3/10F27D13/00
    • C21B13/14C21B13/002Y02P10/122Y02P10/136Y02P10/265Y02P10/283
    • A process for producing molten pig iron or molten steel pre-products from charging substances formed of iron ores and fluxes and at least partially comprising fines, wherein the charging substances are directly reduced to sponge iron in at least one reduction zone by the fluidized layer process, the sponge iron is melted in a melting-gasifying zone under supply of carbon carriers and oxygen-containing gas, and a CO and H.sub.2 -containing reducing gas is produced, which is injected into the reduction zone, is reacted there, is withdrawn as an export gas and is supplied to a consumer, is to be improved with a view to rendering feasible the use of fine ore in an economic manner. This is effected in thatprimarily hematite and/or magnetite fine ores and/or ore dusts are subjected to preheating by the fluidized layer process in a preheating zone,the thus preheated charging substances are completely reduced to a major extent in at least one consecutively arranged reduction zone,whereupon at least the more finely particulate charging substances are charged into the fluidized bed and/or, if desired, also into the fixed bed, of the melting-gasifying zone by forced conveyance, preferably by pneumatic conveyance, and are melted there.
    • 一种从由铁矿石和助熔剂形成的至少部分包含细粉的装料物质生产熔融生铁或钢水预制物的方法,其中所述带电物质通过流化层方法直接还原成至少一个还原区中的海绵铁 在供给碳载体和含氧气体的情况下,在熔融气化区中熔融海绵铁,并且将注入还原区的CO和H 2还原气体在其上反应,作为 要向消费者提供出口天然气,并进行改善,以便以经济的方式使细矿石成为可能。 这是因为主要是赤铁矿和/或磁铁矿细矿石和/或矿石粉尘通过预热区域中的流化层工艺进行预热,因此预热的带电物质在至少一个连续布置的 因此,优选通过强制输送,优选通过气动输送将至少更细粒度的带电物质装入熔融气化区的流化床和/或如果需要也进入固定床,并在那里熔化 。