公开(公告)号：US5630862A

公开(公告)日：1997-05-20

申请号：US416798

申请日：1995-06-15

申请人： Richard B. Greenwalt

发明人： Richard B. Greenwalt

IPC分类号： C21B13/00 ,  C21B13/14

CPC分类号： C21B13/143 ,  C21B13/002 ,  C21B13/0066 ,  C21B13/14 ,  Y02P10/136 ,  Y10S75/958

摘要： The invention provides a method for both disposing of an environmentally undesirable material comprising petroleum coke and the sulfur and heavy metals contained therein and of providing fuel for a process of making molten iron or steel preproducts and reduction gas in a melter gasifier having an upper fuel charging end, a reduction gas discharging end, a lower molten metal and slag collection end, and means providing an entry for charging ferrous material into the melter gasifier; introducing a carbonaceous fuel including petroleum coke into the melter gasifier at the upper fuel charging end; blowing oxygen-containing gas into the petroleum coke to form at least a first fluidized bed of coke particles from the petroleum coke; introducing ferrous material into the melter gasifier through the entry means, reacting petroleum coke, oxygen and particulate ferrous material to combust the major portion of the petroleum coke to produce reduction gas and molten iron or steel preproducts containing heavy metals freed from combustion of the petroleum coke and a slag containing sulfur freed from combustion of the petroleum coke.

摘要翻译： PCT No.PCT / US93 / 08648 Sec。 371日期：1995年6月15日 102（e）日期1995年6月15日PCT提交1993年9月14日PCT公布。 出版物WO94 / 08055 日期1994年04月14日本发明提供了一种处理包含石油焦炭和其中所含的硫和重金属的环境不需要的材料的方法，并且提供用于在熔融气化器中制备铁水或钢前产物和还原气体的方法的燃料 具有上燃料充填端，还原气体排出端，下熔融金属和炉渣收集端，以及提供用于将铁质材料充入熔融气化器的入口的装置; 在上燃料充填端将含石油焦炭的碳质燃料引入熔化炉气化炉中; 将含氧气体吹入石油焦中以形成来自石油焦炭的至少第一流化床的焦炭颗粒; 通过进入装置将铁质材料引入熔化炉气化器中，使石油焦炭，氧气和颗粒状亚铁材料反应，使石油焦炭的主要部分燃烧，以产生还原气体和含铁的重金属的铁水或钢铁前产物， 以及含有从石油焦炭燃烧中释放的硫的炉渣。

公开(公告)号：US5582631A

公开(公告)日：1996-12-10

申请号：US380950

申请日：1995-01-31

申请人： Allan S. Myerson ,  Charles A. Burrows ,  Charles Sanzenbacher ,  Paul R. DiBella

发明人： Allan S. Myerson ,  Charles A. Burrows ,  Charles Sanzenbacher ,  Paul R. DiBella

IPC分类号： C22B1/02 ,  C01G9/02 ,  C21B13/00 ,  C22B3/14 ,  C22B3/44 ,  C22B3/46 ,  C22B5/10 ,  C22B7/00 ,  C22B7/02 ,  C22B19/28 ,  C22B19/30 ,  C22B19/34 ,  C21B13/14

CPC分类号： C01G9/02 ,  C21B13/006 ,  C22B13/045 ,  C22B17/04 ,  C22B19/24 ,  C22B19/26 ,  C22B19/28 ,  C22B19/30 ,  C22B19/34 ,  C22B3/14 ,  C22B3/46 ,  C22B5/10 ,  C22B7/008 ,  C22B7/02 ,  Y02P10/136 ,  Y02P10/216 ,  Y02P10/234 ,  Y10S75/961

摘要： A method for the production of an iron-based feedstock suitable for use as the feedstock for steel mills, from industrial waste streams containing iron, by combining an iron poor material such as exhaust fumes from metals production processes with the waste streams, treating the combined waste stream with an ammonium chloride leaching solution, separating the undissolved precipitates comprising iron compounds from the leachant solution, and further treating the undissolved precipitants by elevated temperature roasting, resulting in the iron-based feedstocks.

摘要翻译： 一种用于生产铁基原料的方法，适用于来自含有铁的工业废物流的钢厂的原料，通过将诸如来自金属生产方法的废气等贫铁材料与废物流组合，处理组合 用氯化铵浸出溶液废物流，从浸出剂溶液中分离含有铁化合物的未溶解沉淀物，并通过高温焙烧进一步处理未溶解的沉淀剂，得到铁基原料。

公开(公告)号：US5534046A

公开(公告)日：1996-07-09

申请号：US461710

申请日：1995-06-05

申请人： Werner Kepplinger ,  Panajiotis Matzawrakos ,  Johannes Schenk ,  Dieter Siuka ,  Christian Bohm

发明人： Werner Kepplinger ,  Panajiotis Matzawrakos ,  Johannes Schenk ,  Dieter Siuka ,  Christian Bohm

IPC分类号： C22B1/14 ,  C21B5/00 ,  C21B11/00 ,  C21B11/02 ,  C21B13/00 ,  C21B13/14 ,  F27B1/20 ,  F27B1/21 ,  F27B15/10 ,  F27B15/14 ,  F27D3/10 ,  F27D13/00

CPC分类号： C21B13/14 ,  C21B13/002 ,  Y02P10/122 ,  Y02P10/136 ,  Y02P10/265 ,  Y02P10/283

摘要： 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.

摘要翻译： 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 。

公开(公告)号：US5480474A

公开(公告)日：1996-01-02

申请号：US260032

申请日：1994-06-15

申请人： Kalus H. Ulrich

发明人： Kalus H. Ulrich

IPC分类号： C21B11/00 ,  C21B13/00 ,  C21B13/14 ,  C21C5/56

CPC分类号： C21B13/002 ,  C21B13/0006 ,  C21B13/14 ,  C21C5/567

摘要： A process and apparatus for smelting reduction of ores or pre-reduced metal carriers in the form of an emulsion composed of slag, liquid metal and floating coke particles which pass from a smelting reduction reactor to a separate settling tank through a connection conduit. At least one lance is provided for blowing a "hard" stream of oxygen into the settling tank while a second lance is provided for blowing a relatively "soft" stream of oxygen into the settling tank. The relatively softly blown stream of oxygen sufficiently increases the volume of gas in the settling tank beyond that resulting from the hard oxygen stream alone so as to drive back coke particles floating on the emulsion from the settling tank to the smelting reduction reactor through the connection conduit.

摘要翻译： 用于熔融还原矿石或预还原金属载体的方法和装置，其为由熔渣，液态金属和浮选焦炭颗粒组成的乳液形式，其通过连接导管从冶炼还原反应器通过单独的沉淀池。 提供至少一个喷枪，用于将“硬”氧气流吹入沉淀槽，同时提供第二喷枪用于将相对“软”的氧气流吹入沉降槽。 相对较轻的氧气流充分地增加了沉淀槽中的气体体积，超过单独的硬氧气流产生的气体量，从而将漂浮在乳液上的焦炭颗粒通过连接导管从沉淀池驱回到冶炼还原反应器 。

公开(公告)号：US5445363A

公开(公告)日：1995-08-29

申请号：US71756

申请日：1993-06-09

申请人： Jorge O. Becerra-Novoa ,  Ricardo Viramontes-Brown ,  Marco A. Flores-Verdugo ,  Jose J. Garza-Ondarza

发明人： Jorge O. Becerra-Novoa ,  Ricardo Viramontes-Brown ,  Marco A. Flores-Verdugo ,  Jose J. Garza-Ondarza

IPC分类号： C21B13/00 ,  C21B13/14 ,  F27B3/18 ,  F27B3/19

CPC分类号： C21B13/14 ,  C21B13/00 ,  C21B13/0086 ,  Y02P10/122 ,  Y02P10/136 ,  Y02P10/143

摘要： In method and apparatus for producing iron and steel from iron cores largely composed of iron oxides, wherein a direct reduction process is used to produce a solid particulate intermediate product, generally known as sponge Iron or Direct Reduced Iron (DRI); pneumatically conveying large iron-bearing particles, such as pelletized iron ore or particularly DRI, in a closed transport pipe, eg. from the reduction reactor of the direct reduction process to the metallurgical furnaces where liquid iron or steel are produced, for example electric arc furnaces, induction furnaces, basic oxygen furnaces, etc. or to a briquetting press to form DRI briquettes, or simply to a silo or storage bin, or in general to a subsequent processing step for said DRI. When the carrier gas is recirculated for reuse, surprisingly air can be a preferred source of such gas, especially for reactive hot DRI. This method has a superior efficiency and productivity and reduces the overall energy consumption relative to currently used DRI steelmaking plants.By using pneumatic conveyors, elements of the plant may be arranged side by side rather than one on top of the other, whereby the overall height of the plant may be reduced.

摘要翻译： 主要由铁氧化物构成的铁芯生产铁和钢的方法和装置，其中直接还原工艺用于生产通常称为海绵铁或直接还原铁（DRI）的固体颗粒中间产物; 将诸如造粒铁矿石或特别是DRI的大型含铁颗粒气动输送到封闭的输送管中，例如， 从直接还原工艺的还原反应器到生产液态铁或钢的冶金炉，例如电弧炉，感应炉，碱性氧气炉等，或用于压块机以形成DRI压块，或简单地 仓库或存储箱，或通常用于所述DRI的后续处理步骤。 当载气再循环以重新使用时，令人惊讶的是，空气可以是这种气体的优选来源，特别是对于反应性热DRI。 与目前使用的DRI炼钢厂相比，该方法具有优异的效率和生产率，降低了总体能耗。 通过使用气动输送机，植物的元件可以并排设置，而不是一个在另一个之上，由此可以减少植物的整体高度。

公开(公告)号：US5433767A

公开(公告)日：1995-07-18

申请号：US208872

申请日：1994-03-09

申请人： Wolfgang Bresser ,  Martin Hirsch ,  Bernd Kosters ,  Fritz Rose

发明人： Wolfgang Bresser ,  Martin Hirsch ,  Bernd Kosters ,  Fritz Rose

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

CPC分类号： C21B13/002 ,  C21B13/0033 ,  C21B13/14 ,  Y02P10/122 ,  Y02P10/126 ,  Y02P10/136 ,  Y02P10/216 ,  Y02P10/265 ,  Y02P10/283

摘要： In a first fluidized bed vessel containing an expanded fluidized bed, iron oxide-containing materials are reduced under weakly reducing conditions with solid carbonaceous reducing agents to or to less than the FeO state. In a second fluidized bed vessel containing an expanding fluidized bed the gas-solids suspension discharged from the first fluidized bed vessel is treated with a highly reducing fluidizing gas whereby the material is reduced in part to iron metal. From the gas-solid suspension discharged from the second fluidized bed vessel the carbonized carbonaceous material is separated and is recycled to the first fluidized bed vessel. The exhaust gas from which the carbonized carbonaceous material has been removed is purified and CO.sub.2 is removed therefrom and the exhaust gas is subsequently fed as a fluidizing gas to the second fluidized bed vessel. A reduced material which has a degree of metallization from 50 to 80% and the remainder of the carbonized carbonaceous material are discharged from the second fluidized bed vessel and in a melting reactor are completely reduced and melted.

摘要翻译： 在含有膨胀流化床的第一流化床容器中，含氧化铁的物质在弱还原条件下用固体碳质还原剂还原至或低于FeO态。 在包含膨胀流化床的第二流化床容器中，从高度还原的流化气体处理从第一流化床容器排出的气固体悬浮液，由此将材料部分还原成铁金属。 从第二流化床容器排出的气体 - 固体悬浮液中，将碳化碳质材料分离并再循环至第一流化床容器。 净化碳化碳质材料的废气被净化，并且从其中除去CO 2，随后废气作为流化气体送入第二流化床容器。 金属化度为50〜80％的还原材料和碳化碳质材料的其余部分从第二流化床容器排出，并且在熔融反应器中被完全还原并熔化。

公开(公告)号：US5407461A

公开(公告)日：1995-04-18

申请号：US134816

申请日：1993-10-12

申请人： Gregory J. Hardie ,  Paul-Gerhard Mantey ,  Mark P. Schwarz

发明人： Gregory J. Hardie ,  Paul-Gerhard Mantey ,  Mark P. Schwarz

IPC分类号： C21B13/08 ,  C21B11/00 ,  C21B13/00 ,  C21B13/14 ,  C21C5/42 ,  C21C5/44 ,  C21C5/48 ,  C21C5/56 ,  F27D1/16

CPC分类号： C21C5/567 ,  C21B13/14 ,  C21C5/44 ,  F27D1/1678 ,  Y02P10/136

摘要： The invention relates to a method for protecting the refractory lining of a metallurgical reaction vessel containing a smelt consisting of metal and slag, the reacting agents for the smelt being fed to the metal bath through introducing means disposed below and above the bath surface, and the gases escaping from the smelt being afterburned with oxidizing agents in the gas space, i.e. in the space above the still smelt, whereby gaseous reacting agents and/or gases acting inertly in the metal bath are fed to the smelt below the bath surface, and the total refractory lining surface in the gas space of the metallurgical reaction vessel is wetted by partial amounts of smelt in the form of drops, splashes, liquid portions rising or ejected eruptively and like a fountain and/or by wave or sloshing motion of the smelt.

摘要翻译： 本发明涉及一种用于保护含有由金属和炉渣组成的熔体的冶金反应容器的耐火衬里的方法，通过设置在浴表面下方和上方的引入装置将熔融物的反应剂进料到金属浴中， 在气体空间即即静止熔融物的上方的空间中也被氧化剂再次燃烧的气体逸出的气体，由此将在金属浴中起作用的气态反应剂和/或气体惰性地进料到熔池表面以下的熔体中， 冶金反应容器的气体空间中的全部耐火衬里表面被喷溅，喷溅，液体部分的喷溅形式的部分熔体润湿，像喷泉一样喷洒和/或通过熔体的波浪或晃动运动而被润湿。

公开(公告)号：US5238487A

公开(公告)日：1993-08-24

申请号：US799415

申请日：1991-11-27

申请人： Rolf Hauk ,  Werner Kepplinger

发明人： Rolf Hauk ,  Werner Kepplinger

IPC分类号： C21B11/00 ,  C21B13/00 ,  C21B13/02 ,  C21B13/14 ,  F27D17/00

CPC分类号： C21B13/00 ,  C21B13/14 ,  Y02P10/122 ,  Y02P10/128 ,  Y02P10/136

摘要： A process for producing pig iron is described, which contains a reducing shaft furnace 1 and a melting gasifier 2. The sponge iron produced from iron ores in the reducing shaft furnace is supplied to the melting gasifier and converted there into a pig iron melt. The gas produced in the melting gasifier is supplied directly via a line 4 as reducing gas to the reducing shaft furnace. The blast furnace gas passing out of the reducing shaft furnace, after traversing a CO.sub.2 scrubber 6, is at least partly heated in a heat exchanger to 200.degree. to 500.degree. C. and passed to a partial combustion plant 13 where, accompanied by the addition of oxygen, the gas is heated to the necessary reducing temperature.

摘要翻译： 描述了生产生铁的方法，其包含还原炉1和熔化气化器2.在还原炉中由铁矿石生产的海绵铁被供应到熔化气化器并转化成生铁熔体。 在熔化气化器中产生的气体通过作为还原气体的管线4直接供给到还原炉。 在通过CO 2洗涤器6之后，从还原轴炉出来的高炉煤气至少部分地在热交换器中被加热至200-500℃，并通入一个部分燃烧设备13，在此同时加入 的氧气，将气体加热到必要的还原温度。

公开(公告)号：US5185032A

公开(公告)日：1993-02-09

申请号：US887830

申请日：1992-05-26

申请人： Roy H. Whipp

发明人： Roy H. Whipp

IPC分类号： C21B13/14

CPC分类号： C21B13/14 ,  Y02P10/122 ,  Y02P10/126 ,  Y02P10/136

摘要： A fluidized bed direct process for reducing raw iron ore fines and directly producing an iron product comprises a process for feeding raw iron ore fines into a multi-stage reactor assembly; a process for reducing fines in fluidized beds developed by a counter-current flow of reducing gas, where the reducing gas is developed in a process for directly producing slag and iron in a gasifier/smelter assembly; a process for producing iron by further reducing and removing impurities from a part of the reduced iron ore in a gasifier/smelter assembly; a process for compacting excess reduced iron ore; and, a process for preparing reducing gas from offgas exiting said gasifier/smelter assembly; and, a process for recycling spent reducing gas exiting said reactor assembly. The processed offgas is 100% utilizable as reducing gas by balancing the reduced iron ore between the gasifier/smelter and compacting assemblies. The iron product exiting said gasifier/smelter assembly is refinable into steel with standardly available refining methods, such as those using ladle or basic oxygen furnaces for removal of impurities prior to casting.

摘要翻译： 用于还原生铁矿粉和直接生产铁产品的流化床直接方法包括将原料铁矿石细粉供给到多级反应器组件中的方法; 通过逆流气流还原气体来减少流化床中的细粉的方法，其中还原气体在气化器/熔炼炉组件中直接生产炉渣和铁的过程中产生; 通过在气化炉/熔炼炉组件中进一步还原和除去一部分还原铁矿石中的杂质来生产铁的方法; 一种压实多余还原铁矿石的工艺; 以及从离开所述气化炉/冶炼厂组件的废气中制备还原气体的方法; 以及用于再循环离开所述反应器组件的废还原气体的方法。 通过平衡气化器/冶炼厂和压实组件之间的还原铁矿石，经处理的废气可100％用作还原气体。 离开所述气化器/冶炼机组件的铁产品可以用标准可用的精炼方法，例如使用钢包或碱式氧气炉在铸造前去除杂质的那些方法可炼钢。

公开(公告)号：US5183495A

公开(公告)日：1993-02-02

申请号：US619759

申请日：1990-11-29

申请人： Tatsuro Ariyama ,  Shinichi Isozaki ,  Kenzo Yamada ,  Masahiro Matsuo ,  Genji Kanatani

发明人： Tatsuro Ariyama ,  Shinichi Isozaki ,  Kenzo Yamada ,  Masahiro Matsuo ,  Genji Kanatani

IPC分类号： C21B13/14

CPC分类号： C21B13/14

摘要： A method for controlling a flow rate of gas for prereducing ore comprises the steps of prereducing ore in a prereduction furnace having a fluidized bed with a gas generated in a smelting reduction furnace and controlling a pressure of gas generated in the smelting reduction furnace and introduced into the prereduction furnace, thereby controlling the actual flow rate of gas introduced into the prereduction furnace. An apparatus for controlling a flow rate of gas for prereducing ore comprises a flow passage for introducing gas generated in a smelting reduction furnace into a prereduction furnace and a gas pressure control valve positioned in the flow passage.