公开(公告)号：US06939391B2

公开(公告)日：2005-09-06

申请号：US10220049

申请日：2001-03-02

申请人： Rodney J. Dry ,  Peter Burke

发明人： Rodney J. Dry ,  Peter Burke

IPC分类号： C21B11/08 ,  C21B11/00 ,  C21B13/00 ,  C21B13/10

CPC分类号： C21B13/0026 ,  C21B13/0013 ,  Y02P10/136

摘要： A molten bath-based direct smelting process for producing ferrous metal from a ferrous feed material is disclosed. The process is characterised by injecting pro-heated air downwardly into metallurgical vessel at an angle of 20 to 90° C. relative to a horizontal axis and at a temperature of 800-1400 ° C. and at a velocity of 200-600 m/s via at least one lance (27) . This step forces molten material in the region of a lower end of the lance away from the lance and forming a “free”space around the lower end of the lance that has a concentration of molten material that is lower than the molten material concentration in the raised bath. The process is further characterised in that the lance is located so that: (i) the lance extends into the vessel a distance that is at least the outer diameter of he lover end of the lance; and (ii) the lower end of the lance is at least 3 times the outer diameter of the lower end of the lance above a quiescent surface of the molt bath.

摘要翻译： 公开了一种用于从含铁原料生产黑色金属的基于熔池的直接熔炼方法。 该方法的特征在于，将预热的空气以相对于水平轴20度至90度的角度并且在800-1400℃的温度和200-600米/秒的速度向下注入冶金容器中， 至少一个喷枪（27）。 该步骤迫使喷枪下端区域中的熔融材料远离喷枪，并在喷枪下端周围形成“自由”空间，该空间的熔融材料浓度低于熔融材料的熔融材料浓度 沐浴。 该方法的特征还在于，所述喷枪的位置使得：（i）所述喷枪延伸到所述船舶中至少至少是所述喷枪的情人端的外径的距离; 和（ii）喷枪的下端至少是蜕皮浴静止表面上方的喷枪下端外径的3倍。

公开(公告)号：US5358548A

公开(公告)日：1994-10-25

申请号：US855019

申请日：1991-06-29

申请人： Roger L. Player ,  Rodney J. Dry

发明人： Roger L. Player ,  Rodney J. Dry

IPC分类号： B01D5/00 ,  B01J8/18 ,  C22B19/18 ,  C22B9/02

CPC分类号： B01D5/0033 ,  B01J8/1863 ,  C22B19/18

摘要： Metal vapor, for example zinc fume in the offgas of a smelting furnace, is captured by bringing the stream into direct contact with a fluidized bed of solid particles having a particulate loading of greater than 10 kg/m.sup.3 and preferably greater than 400 kg/m.sup.3. The thermal mass and temperature of the bed is such as to rapidly quench the vapor in the case of zinc from above 960.degree. C. to below 419.degree. C. in less than 100 milliseconds, whereby the vapor condenses in the bed and is recovered as zinc metal in acceptable yield.

摘要翻译： PCT No.PCT / AU90 / 00535 Sec。 371日期1991年6月29日 102（e）1991年6月29日PCT PCT 1990年11月7日PCT公布。 出版物WO91 / 07225 日期：1991年5月30日。金属蒸气，例如冶炼炉废气中的锌烟被捕获，使得流与具有大于10kg / m 3的颗粒负荷的固体颗粒的流化床直接接触， 大于400 kg / m3。 床的热质量和温度可以在不到100毫秒的时间内将锌从960℃升至低于419℃的速度快速冷却，由此蒸汽在床中冷凝并回收为 锌金属以可接受的产率。

公开(公告)号：US06989042B2

公开(公告)日：2006-01-24

申请号：US10257721

申请日：2001-04-11

申请人： Rodney J. Dry ,  Peter D. Burke

发明人： Rodney J. Dry ,  Peter D. Burke

IPC分类号： C21B13/00

CPC分类号： C21B11/00 ,  C21B13/0026 ,  Y02P10/136

摘要： A molten-bath based direct smelting process and apparatus for producing metals from a ferrous material is disclosed. The process includes injecting feed materials being solid material and carrier gas into a molten bath at a velocity of at least 40 m/s through at least one downwardly extending solids injection lance having a delivery tube of internal diameter of 40–200 mm that is located so that a central axis of an outlet end of the lance is at an angle of 20 to 90 degrees to a horizontal axis. The feed materials injection generates a superficial gas flow of at least 0.04 Nm3/s/m2 within the molten bath at least in part by reactions of injected material in the bath. The gas now causes molten material to be projected upwardly as splashes, droplets and streams and form an expanded molten bath zone, with the gas flow and the upwardly projected molten material causing substantial movement of material within the molten bath and strong mixing of the molten bath. The feed materials are selected so that, in an overall sense, the reactions of the feed materials in the molten bath are endothermic. The process also includes injecting an oxygen-containing gas into an upper region of the vessel via at least one oxygen gas injection lance and post-combusting combustible gases released from the molten bath.

摘要翻译： 公开了一种基于熔池的直接熔炼方法以及从黑色金属材料生产金属的设备。 该方法包括通过至少一个向下延伸的固体注射枪将具有固体材料和载气的进料材料以至少40m / s的速度注入熔池中，所述固体注射枪具有内径为40-200mm的输送管，所述输送管位于 使得矛杆的出口端的中心轴线相对于水平轴线成20度至90度的角度。 进料材料注入至少部分地通过注入材料在浴中的反应而在熔池内产生至少0.04Nm 3 / s / m 2以上的表观气流 。 气体现在使熔融材料作为飞溅，液滴和流向上突出，并形成膨胀的熔浴区，气流和向上突出的熔融材料引起材料在熔池内的显着移动，并且熔融浴的强烈混合 。 选择进料材料，使得在总体意义上，熔融浴中进料的反应是吸热的。 该方法还包括通过至少一个氧气注射枪和从熔融浴释放的后燃烧的可燃气体将含氧气体注入容器的上部区域。

公开(公告)号：US06245285B1

公开(公告)日：2001-06-12

申请号：US09214179

申请日：1999-06-02

申请人： Rodney J. Dry ,  Cecil Peter Bates ,  Ralph M. Weber

发明人： Rodney J. Dry ,  Cecil Peter Bates ,  Ralph M. Weber

IPC分类号： C21C530

CPC分类号： F27D9/00 ,  C21C5/4613 ,  F27D3/16

摘要： A lance (5) for injecting a feed material, preferably a solid feed material, into a metallurgical vessel, is disclosed. The lance comprises: an inlet (21) for introducing the feed material into the lance; an outlet (23) at a forward end of the lance (5) for discharging the feed material from the lance (5); a hollow elongate member (25) that defines a passageway (33) for the feed material between the inlet (21) and the outlet (23) and is adapted to be cooled by a first cooling fluid; and an outer jacket (35) positioned around a section of the length of the member (25) and is adapted to be cooled by a second cooling fluid.

摘要翻译： 公开了一种用于将进料（优选固体进料）注入到冶金容器中的喷枪（5）。 喷枪包括：用于将进料材料引入喷枪的入口（21） 在喷枪（5）的前端处的用于从喷枪（5）排出进料的出口（23）; 中空细长构件（25），其限定用于入口（21）和出口（23）之间的进料的通道（33），并且适于由第一冷却流体冷却; 以及围绕所述构件（25）的长度的一部分定位并且适于被第二冷却流体冷却的外护套（35）。

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。