公开(公告)号：US10000821B2

公开(公告)日：2018-06-19

申请号：US13823308

申请日：2011-09-15

申请人： Rodney James Dry ,  Jacques Pilote

发明人： Rodney James Dry ,  Jacques Pilote

IPC分类号： C21B13/00 ,  C21B5/04 ,  C21B11/02 ,  C21C5/54

CPC分类号： C21B13/0006 ,  C21B5/04 ,  C21B11/02 ,  C21B13/0013 ,  C21C5/54 ,  Y02P10/136 ,  Y02P10/216

摘要： A molten bath-based direct smelting process includes controlling the process conditions in a direct smelting vessel so that molten slag in a molten bath of metal and slag in the vessel has a viscosity in a range of 0.5-5 poise in an operating temperature range for the process.

公开(公告)号：US20160320125A1

公开(公告)日：2016-11-03

申请号：US15107781

申请日：2014-12-22

申请人： Tecnored Desenvolvimento Technologico S.A.

发明人： Hermes Joaquim Ferreira Filho ,  Kleiton Gonçalves Lovati

IPC分类号： F27B1/16 ,  F27D7/02 ,  C21B11/02 ,  F27B1/02

CPC分类号： F27B1/16 ,  C21B7/16 ,  C21B11/02 ,  C21C5/56 ,  F27B1/02 ,  F27B1/10 ,  F27D7/02 ,  F27D99/0033 ,  Y02P10/136

摘要： The present invention pertains to metallurgical processes and equipment and, more particularly, to a metallurgical furnace capable of operating with a broad range of broad range of raw materials and fuels, including those with high levels of impurities. Accordingly, the metallurgical furnace of the present invention comprises (i) at least an upper tub, (ii) at least a lower tub, (iii) at least a fuel feeder positioned substantially between the at least an upper tub and the at least a lower tub, (iv) at least a row of tuyeres positioned on at least one of at least an upper tub and at least a lower tub, the at least a row of tuyeres fluidly communicating inside the furnace with the outside environment, and (v) at least a burner positioned on at least one of at least an upper tub and at least a lower tub. The use of at least a burner jointly with the at least a row of tuyeres generates a very intense release of heat by virtue of the exothermic reactions which occur by this combination.

摘要翻译： 本发明涉及冶金工艺和设备，更具体地涉及一种能够在广泛范围的原料和燃料（包括那些具有高含量杂质）的燃料中运行的冶金炉。 因此，本发明的冶金炉包括（i）至少一个上部桶，（ii）至少一个下部桶，（iii）至少一个燃料供给器，基本位于至少一个上部桶和至少一个 下部桶，（iv）位于至少一个上部桶和至少一个下部桶中的至少一个的至少一排风口，所述至少一排风扇在炉内与外部环境流体连通，以及（v ）至少一个位于至少一个上部桶和至少一个下部桶中的至少一个上的燃烧器。 与至少一排风口共同使用至少一个燃烧器由于通过这种组合发生的放热反应，产生了非常强烈的热释放。

公开(公告)号：US09273368B2

公开(公告)日：2016-03-01

申请号：US14235277

申请日：2012-07-16

申请人： Iakov M. Gordon

发明人： Iakov M. Gordon

IPC分类号： C21B11/02 ,  C21B13/02 ,  C21B13/00

CPC分类号： C21B13/02 ,  C21B11/02 ,  C21B13/004 ,  C21B13/0073 ,  C21B2100/02 ,  C21B2100/04 ,  C21B2100/282 ,  Y02P10/122 ,  Y02P10/128 ,  Y02P10/136

摘要： A process for direct reduction of iron oxide in a shaft furnace. The process includes feeding iron oxide to the furnace, passing the iron oxide successively downwardly through a pre-reduction zone, a transition zone, a metallization zone, and a cooling zone while passing rich fuel gas produced by external partial combustion with a sub-stoichiometric volume of air upwardly through the pre-reduction zone in counter-current flow so as to partially reduce the iron oxide, and passing reducing gas downwardly through the metallization zone in co-current flow so as to substantially complete the reduction of the iron oxide to metallic iron. The reducing gas is first pre-heated in a gas heater and then subjected to partial combustion with oxygen to further increase its temperature. The process includes removing a metallized iron product from the cooling zone.

摘要翻译： 在竖炉中直接还原氧化铁的方法。 该方法包括向炉中加入氧化铁，使铁氧化物连续向下通过预还原区，过渡区，金属化区和冷却区，同时通过外部部分燃烧产生的富燃料气体以亚化学计量 空气的体积向上通过预还原区域以逆流流动，以便部分地还原氧化铁，并且使还原气体以并流流动向下通过金属化区域，以便基本上完成氧化铁的还原 金属铁。 还原气体首先在气体加热器中预热，然后用氧进行部分燃烧，以进一步提高其温度。 该方法包括从冷却区去除金属化的铁产品。

公开(公告)号：US20130312571A1

公开(公告)日：2013-11-28

申请号：US13955654

申请日：2013-07-31

申请人： Gary E. METIUS ,  James M. MCCLELLAND, JR. ,  David C. MEISSNER ,  Stephen C. MONTAGUE

发明人： Gary E. METIUS ,  James M. MCCLELLAND, JR. ,  David C. MEISSNER ,  Stephen C. MONTAGUE

IPC分类号： C21B11/02

CPC分类号： C21B11/02 ,  C01B2203/025 ,  C21B13/02 ,  C21B2100/02 ,  C21B2100/04 ,  C21B2100/06 ,  C21B2100/22 ,  C21B2100/282 ,  C21B2100/60 ,  C21B2100/66 ,  Y02P10/122 ,  Y02P10/126 ,  Y02P10/132 ,  Y02P10/136 ,  Y02P20/129

摘要： Novel systems and methods are described for reducing iron oxide to metallic iron in an integrated steel mill or the like that has a coke oven and/or an oxygen steelmaking furnace. More specifically, the present invention relates to novel systems and methods for reducing iron oxide to metallic iron using coke oven gas (COG) or COG and basic oxygen furnace gas (BOFG).

摘要翻译： 在具有焦炉和/或氧气炼钢炉的综合钢厂等中描述了将氧化铁还原为金属铁的新型系统和方法。 更具体地说，本发明涉及使用焦炉煤气（COG）或COG和碱性氧气炉气体（BOFG）还原氧化铁至金属铁的新系统和方法。

公开(公告)号：US5698009A

公开(公告)日：1997-12-16

申请号：US577254

申请日：1995-12-22

申请人： Dong Joon Min ,  Yoon Chul Park

发明人： Dong Joon Min ,  Yoon Chul Park

IPC分类号： C22B1/243 ,  C21B5/00 ,  C21B11/00 ,  C21B11/02 ,  C22B1/16

CPC分类号： C21B5/008 ,  C21B11/02 ,  Y02P10/136

摘要： A method for agglomerating iron ore particles pre-reduced to produce hot pig iron, wherein hot iron ore particles pre-reduced in the pre-reduction furnace are simply mixed with aluminum powder or aluminum-containing metal powder before being loaded in the smelting reduction furnace so that they will be agglomerated, thereby being capable of not only simplifying the agglomeration, but also eliminating the adverse effect on the quality of ingot iron caused by impurities such as S or P. Aluminum dross, which is a waste, may be used as the aluminum-containing metal powder for agglomerating the iron ore particles. In this case, a reduced energy consumption and disposal of wastes can be achieved.

摘要翻译： 一种预先还原以生产热生铁的铁矿石颗粒凝集的方法，其中预还原炉中预还原的热铁矿石颗粒在装入熔炼还原炉之前与铝粉或含铝金属粉末简单混合 因此能够凝聚，不仅能够简化凝聚，而且可以消除由诸如S或P等杂质引起的铁质量的不良影响。作为废料的铝渣可用作 用于使铁矿石颗粒附聚的含铝金属粉末。 在这种情况下，可以实现能源消耗减少和废物处理。

公开(公告)号：US5632953A

公开(公告)日：1997-05-27

申请号：US492016

申请日：1995-09-11

申请人： Hans U. Feustel ,  Joachim Mallon ,  Michael Schaaf ,  Edmund Wilms ,  Gerhard Neumann ,  Karl-Heinz Kohler ,  Ludwig Ruschitzka

发明人： Hans U. Feustel ,  Joachim Mallon ,  Michael Schaaf ,  Edmund Wilms ,  Gerhard Neumann ,  Karl-Heinz Kohler ,  Ludwig Ruschitzka

IPC分类号： C21B11/02 ,  F27B1/10 ,  F27B1/16

CPC分类号： C21B11/02 ,  F27B1/16 ,  Y02P10/136 ,  Y02P10/216

摘要： A coke-fired cupola, including: a furnace shaft having a well at one end, a charging device connected to the shaft, a lower-mouth exhaust connected to the shaft below the charging device, and a furnace gas exhaust ring arranged at the shaft below the charging device and the lower-mouth exhaust. Additionally, at least one nozzle is connected to the shaft above the well. The at least one nozzle has a centrally run oxygen lance. A gas recirculating circuit is provided for connecting the furnace gas exhaust ring to the at least one nozzle. The gas recirculating circuit includes an exhaust device connected to the furnace gas exhaust ring, a recirculating gas ring connected to the at least one nozzle and a recirculating gas duct connected between the exhaust device and the recirculating gas ring.

摘要翻译： PCT No.PCT / EP94 / 00108 Sec。 371 1995年9月11日第 102（e）1995年9月11日PCT PCT 1994年1月18日PCT公布。 第WO94 / 17352号公报 日期：1994年8月4日焦炉式冲天炉，包括：一端具有井的炉轴，连接在轴上的充气装置，与充气装置下方的轴连接的下口排气，以及炉内气体排气 环设置在充电装置下方的轴和下口排气口。 此外，至少一个喷嘴连接到井上方的轴。 至少一个喷嘴具有中心运行的氧枪。 提供了一种气体再循环回路，用于将炉排气环连接到至少一个喷嘴。 气体循环回路包括连接到炉排气环的排气装置，连接到至少一个喷嘴的再循环气体环和连接在排气装置和再循环气体环之间的再循环气体管道。

公开(公告)号：US5045112A

公开(公告)日：1991-09-03

申请号：US234914

申请日：1988-08-22

申请人： John M. Lehto

发明人： John M. Lehto

IPC分类号： C10G1/00 ,  C21B11/02 ,  C21B13/00 ,  C21B13/14 ,  C21C5/56 ,  F02B3/06

CPC分类号： C21B13/002 ,  C10G1/00 ,  C21B11/02 ,  C21B13/0066 ,  C21B13/14 ,  C21C5/567 ,  F02B3/06 ,  Y02P10/136 ,  Y02P10/265 ,  Y02P10/283 ,  Y10S75/958

摘要： A process and arrangement are provided for the efficient generation of energy from coal, while at the same time providing for a relatively inexpensive step in processing of iron or steel, and the extraction of valuable materials such as oils from coal. An advantage to the process is that relatively low quality coals can be utilized, since the coal is pretreated before any burning operation. Generally, the process involves three interacting stages. In the First Stage, a coal liquefaction/pyrolysis procedure is utilized to drive off volatiles, and form a very low volatile char. The volatiles can be collected and utilized as a valuable oil product, such as for diesel fuel or the like. The char material is preferably pelletized and utilized as a reductant, in a Second Stage of iron reduction and melting. Preferably the iron reduction and melting operation is conducted in a pressurized cupola and the high pressure hot product gases are utilized directly and/or indirectly, to generate electricity in Stage Three, and to produce hot steam for use in driving certain portions of Stages One and Two. High pressure product gases have a greater energy content than gases at atmospheric pressure and facilitate more efficient production of electricity in Stage Three. Problems of handling molten iron from a pressurized cupola are solved using the pressure to drive the molten iron up a vertical tap mechanism. The weight of the metal offsets the pressure as the metal rises so that the metal is driven up to a point at which the metal's pressure is decreased to atmospheric pressure. Also, preferably steel is formed from the reduced iron product of Stage Two. Preferred arrangements for generating steel are shown.

摘要翻译： 提供了一种工艺和布置，用于从煤中有效地产生能量，同时为铁或钢的加工提供相对便宜的步骤，以及从煤中提取有价值的材料如石油。 该方法的优点是可以利用相对低质量的煤，因为在任何燃烧操作之前预处理煤。 通常，该过程涉及三个相互作用的阶段。 在第一阶段，煤液化/热解程序被用来驱除挥发物，形成非常低的挥发性焦炭。 挥发物可以被收集并用作有价值的油产品，例如柴油燃料等。 在第二阶段的铁还原和熔融中，焦炭材料优选被造粒并用作还原剂。 优选地，铁还原和熔化操作在加压冲天炉中进行，并且高压热产物气体被直接和/或间接地用于在第三阶段中发电，并且产生用于驱动第一阶段的某些部分的热蒸汽 二。 高压产品气体的能量含量大于大气压力的气体，并有助于在第三阶段更有效地生产电力。 使用压力将铁水从加压冲天炉处理的问题解决成垂直水龙头机构。 当金属上升时，金属的重量抵消了压力，使得金属被驱动到金属压力降低到大气压的点。 此外，优选地，钢由第二阶段的还原铁产物形成。 示出了用于产生钢的优选布置。

公开(公告)号：US4341553A

公开(公告)日：1982-07-27

申请号：US173696

申请日：1980-07-30

申请人： Karl Immekus

发明人： Karl Immekus

IPC分类号： C21B11/02 ,  C21C1/08 ,  C22C33/08

CPC分类号： C21C1/08 ,  C21B11/02

摘要： A cupola furnace has a hearth 1 with tuyeres 2, a floor 3 and a tapping duct 4 leading to a forehearth 5. To enable treatment agents to be introduced into the melt in the furnace below the surface of the melt, the furnace is additionally provided with a lance 17 which extends through lining brickwork of the furnace into a sump 15 in the floor of the furnace. The lance 17 may be connected to a hot blast ring main which supplies the tuyeres 2.

摘要翻译： 冲击炉具有炉膛1，风口2，地板3和通向前炉5的出钢管4.为了使处理剂能够被引入熔炉表面以下的熔炉中，另外提供炉 其中喷枪17延伸穿过炉子的衬砌砖进入炉底部的贮槽15中。 喷枪17可以连接到供应风口2的热风环主体。

公开(公告)号：US4340207A

公开(公告)日：1982-07-20

申请号：US99336

申请日：1979-12-03

申请人： Alfred Bruhn ,  William Bernard

发明人： Alfred Bruhn ,  William Bernard

IPC分类号： C21B11/02 ,  F27B1/22 ,  F27D17/00

CPC分类号： F27B1/22 ,  C21B11/02 ,  F27D17/004 ,  F28D21/001 ,  Y10S165/909 ,  Y10S266/90

摘要： There is disclosed a process and apparatus for the recovery of heat from exhaust or waste gases having a temperature of from about 500.degree. to about 2500.degree. F. generated in a process operation cycling between an operational mode and in idling mode utilizing an intermediate heat transfer fluid to recover heat and to use all or a portion of such recovered heat, inter alia, in such process operation.

摘要翻译： 公开了一种用于从在操作模式和怠速模式之间循环的过程操作中产生的温度为约500°至约2500°F的废气或废气回收热量的方法和装置，其利用中间传热 流体回收热量，并且在这种处理操作中尤其是这种回收热量的全部或部分使用。

公开(公告)号：US4072504A

公开(公告)日：1978-02-07

申请号：US669863

申请日：1976-03-24

申请人： Orn G. Perdahl ,  Sven O. Santen

发明人： Orn G. Perdahl ,  Sven O. Santen

IPC分类号： C21B5/02 ,  C21B11/02 ,  C21B13/00 ,  C21B13/14 ,  C22B5/00 ,  C21B11/00

CPC分类号： C21B13/143 ,  C21B11/02 ,  C21B13/002 ,  C21B13/0026 ,  C21B5/026 ,  C22B5/00 ,  Y02P10/136 ,  Y02P10/265 ,  Y02P10/283

摘要： The present invention relates to a method for producing metal from metal oxides, especially iron from iron oxides by a pre-reduction as well as final reduction wherein the pre-reduced oxidic material as well as optional slag formers and optional recirculated gas are injected at the bottom through tuyeres or the like by means of a carrier gas, inert or reducing of a reactor resembling a shaft furnace filled with solid reducing agent during simultaneous supplying of energy, e.g. in the form of oxygen gas and hydrocarbon, the oxidic material being blown against a pillar of solid reducing agent at such a level that essentially all injected solid material is retained (e.g. by galling) on the lower end of the pillar to bring the oxidic material to instantaneous final reduction, melting and possible alloying of the reduced metal.

摘要翻译： 本发明涉及通过预还原和金属氧化物，特别是来自氧化铁的铁从金属氧化物中生产金属的方法以及最终还原，其中预还原的氧化物以及任选的成渣剂和任选的再循环气体在 底部通过风口等通过载气惰性或还原，在同时供应能量的情况下，类似于装有固体还原剂的竖炉的反应器，例如 以氧气和碳氢化合物的形式，将氧化物材料以固体还原剂柱的方式吹送，使得基本上所有注入的固体材料（例如通过磨擦）保留在柱的下端以使氧化材料 即时还原金属的最终还原，熔融和合金化。