公开(公告)号：US5227116A

公开(公告)日：1993-07-13

申请号：US893543

申请日：1992-06-04

申请人： Rodney J. Dry ,  Robert La Nauze

发明人： Rodney J. Dry ,  Robert La Nauze

IPC分类号： C21B13/14

CPC分类号： C21B13/14 ,  Y02P10/136 ,  Y02P10/212

摘要： Prereduced iron oxides are supplied to a smelting vessel (1) for the production of iron or steel by directing a hot reducing offgas from the vessel (1) into a vertical riser duct (8) without substantial cooling of the offgas and by way of inlet (16), particulate iron oxide containing material is entrained in the hot reducing offgas as the gas is conveyed upwardly through the duct (8). The hot gas heats the entrained material to a temperature at which partial reduction of the iron oxide occurs, the hot gas thereby losing sensible heat. Additional materials may be introduced to the duct (8) for entrainment in the gas. Particulate material is separated in a cyclone (9) from the gas and the separated partially reduced material is introduced to the smelting vessel by way of passage (12). The particulate material, or part of it, may be recycled by way of passage (15) through the vertical riser duct before the partially reduced material is introduced to the smelting vessel and only part of the hot reducing offgas emitted by the vessel may be directed into the duct.

摘要翻译： 通过将热还原废气从容器（1）引导到垂直提升管（8）中而不将废气大量冷却并通过入口进入，将预还原的氧化铁供应给熔炼炉（1）以生产铁或钢 （16）中，含气体的氧化铁的材料被夹带在热还原废气中，因为气体被向上输送通过管道（8）。 热气体将夹带的材料加热到发生氧化铁的部分还原的温度，热气体由此失去显热。 可以将另外的材料引入管道（8）以夹带在气体中。 颗粒材料在旋风分离器（9）中与气体分离，并且分离的部分还原的材料通过通道（12）引入熔炼容器。 颗粒材料或其一部分可以在将部分还原的材料引入熔炼容器之前通过通道（15）再循环通过竖直提升管，并且只有部分由容器排放的热还原废气可以被引导 进入管道。

公开(公告)号：US5198019A

公开(公告)日：1993-03-30

申请号：US688540

申请日：1991-06-20

申请人： Rodney J. Dry ,  Robert La Nauze

发明人： Rodney J. Dry ,  Robert La Nauze

IPC分类号： C21B11/00 ,  C21B13/00 ,  C21B13/14

CPC分类号： C21B13/14 ,  Y02P10/136 ,  Y02P10/212

摘要： Prereduced iron oxides are supplied to a smelting vessel (1) for the production of iron or steel by directing a hot reducing offgas from the vessel (1) into a vertical riser duct (8) without substantial cooling of the offgas and by way of inlet (16), particulate iron oxide containing material is entrained in the hot reducing offgas as the gas is conveyed upwardly through the duct (8). The hot gas heats the entrained material to a temperature at which partial reduction of the iron oxide occurs, the hot gas thereby, losing sensible heat. Additional materials may be introduced to the duct (8) for entrainment in the gas. Particulate material is separated in a cyclone (9) from the gas and the separated partially reduced material is introduced to the smelting vessel by way of passage (12). The particulate material, or part of it may be recycled by way of passage (15) through the vertical rise duct before the partially reduced material is introduced to the smelting vessel and only part of the hot reducing offgas emitted by the vessel may be directed into the duct.

摘要翻译： PCT No.PCT / AU89 / 00544 Sec。 371日期1991年6月20日 102（e）1991年6月20日PCT 1989年12月20日PCT PCT。 第WO90 / 07010号公报 日期：1990年6月28日。将还原的氧化铁供应到熔炼容器（1），用于通过将热还原废气从容器（1）引入垂直提升管（8）而不大量冷却 废气和通过入口（16），当气体向上传送通过管道（8）时，颗粒状氧化铁的材料被夹带在热还原废气中。 热气体将夹带的材料加热至发生氧化铁的部分还原的温度，从而导致热气体失去显热。 可以将另外的材料引入管道（8）以夹带在气体中。 颗粒材料在旋风分离器（9）中与气体分离，并且分离的部分还原的材料通过通道（12）引入熔炼容器。 在将部分还原的材料引入熔炼容器之前，颗粒材料或其一部分可以通过通道（15）再循环通过竖直上升管道，并且只有一部分由容器排放的热还原废气可以被引入 管道。