Process for the production of molten pig iron and steel pre-products
    1.
    发明授权
    Process for the production of molten pig iron and steel pre-products 失效
    生产生铁和钢铁前期产品的工艺

    公开(公告)号:US4728360A

    公开(公告)日:1988-03-01

    申请号:US797820

    申请日:1985-11-14

    摘要: A process and an arrangement for the production of molten pig iron or steel pre-products from particulate ferrous material as well as for the production of reducing gas in a meltdown gasifier. A fluidized bed of coke particles is formed by the addition of coal and the injection of oxygen-containing gas. In order to ensure a satisfactory mode of operation of the meltdown gasifier even if coal of inferior quality with a high moisture content and a high portion of volatile matter is used, additional heat is supplied to the meltdown gasifier above the feed lines for the fluidized-bed-forming oxygen-containing gas by burning and/or degassing coal particles separated from the reducing gas.

    摘要翻译: 一种用于生产来自颗粒状亚铁材料的生铁或钢铁预产品以及用于在熔化气化炉中生产还原气体的方法和装置。 通过加入煤和注入含氧气体形成焦炭颗粒流化床。 为了确保熔化气化器的令人满意的操作模式,即使使用具有高水分含量和高挥发性物质的质量差的煤,另外的热量也被供应给用于流化床的进料管线上的熔化气化器, 通过燃烧和/或脱气从还原气体分离的煤颗粒来形成含氧气体。

    Fluidized bed arrangement for the production of molten pig iron and
steel pre-products
    2.
    发明授权
    Fluidized bed arrangement for the production of molten pig iron and steel pre-products 失效
    用于生产生铁和钢铁预产品的流化床装置

    公开(公告)号:US4805880A

    公开(公告)日:1989-02-21

    申请号:US099233

    申请日:1987-09-21

    摘要: A process and an arrangement for the production of molten pig iron or steel pre-products from particulate ferrous material as well as for the production of reducing gas in a meltdown gasifier. A fluidized bed of coke particles is formed by the addition of coal and the injection of oxygen-containing gas. In order to ensure a satisfactory mode of operation of the meltdown gasifier even if coal of inferior quality with a high moisture content and a high portion of volatile matter is used, additional heat is supplied to the meltdown gasifier above the feed lines for the fluidized-bed-forming oxygen-containing gas by burning and/or degassing coal particles separated from the reducing gas.

    摘要翻译: 一种用于生产来自颗粒状亚铁材料的生铁或钢铁预产品以及用于在熔化气化炉中生产还原气体的方法和装置。 通过加入煤和注入含氧气体形成焦炭颗粒流化床。 为了确保熔化气化器的令人满意的操作模式,即使使用具有高水分含量和高挥发性物质的质量差的煤,另外的热量也被供应给用于流化床的进料管线上的熔化气化器, 通过燃烧和/或脱气从还原气体分离的煤颗粒来形成含氧气体。

    Arrangement comprising a gasifier and a direct reduction furnace
    3.
    发明授权
    Arrangement comprising a gasifier and a direct reduction furnace 失效
    包括气化器和直接还原炉的布置

    公开(公告)号:US4605205A

    公开(公告)日:1986-08-12

    申请号:US743640

    申请日:1985-06-11

    CPC分类号: C21B13/002 C21B13/14 F27B1/20

    摘要: In the case of an arrangement comprising a gasifier and a direct reduction shaft furnace positioned above it and which is connected to the gasifier by a connecting shaft, the direct introduction of the reduction gas obtained in the gasifier, even in the case of a high dust proportion, is made possible in that the sponge iron particles are discharged through several radially positioned screw conveyors and the reduction gas is fed to an annular zone formed above the screw conveyors.

    摘要翻译: 在包括位于其上方的气化器和直接还原竖炉的装置的情况下,通过连接轴连接到气化器,即使在高灰尘的情况下也直接引入在气化器中获得的还原气体 使海绵铁颗粒通过几个径向定位的螺旋输送机排出并且还原气体被供给到形成在螺旋输送机上方的环形区域。

    Process for gaining electric energy in addition to producing molten pig
iron and an arrangement for carrying out the process
    4.
    发明授权
    Process for gaining electric energy in addition to producing molten pig iron and an arrangement for carrying out the process 失效
    除了生产熔融生铁以外还有获得电能的方法以及用于执行该过程的装置

    公开(公告)号:US4861369A

    公开(公告)日:1989-08-29

    申请号:US125482

    申请日:1987-11-25

    IPC分类号: C21B13/00 C21B13/14 F25J3/04

    摘要: To gain electric energy in addition to producing molten pig iron, from lumpy iron ore and solid fuels, by using a direct reduction zone for the reduction of the iron ore to sponge iron and a meltdown-gasifying zone for the production of molten pig iron, carbon carriers are used in, and oxygen-containing gases are supplied to, the meltdown-gasifying zone. The reduction gas forming is fed into the direct reduction zone. The reduction gas reacted there is supplied as top gas to a power generation plant including a turbine. In order to adapt the power generation to the power consumption by simultaneously avoiding any influence on the metallurgical conditions at the production of pig iron and its further processing, the charge of carbon carriers into the meltdown-gasifying zone is varied as a function of the gas consumption of the power generation plant in a manner that, with a higher gas consumption, the volatile constituents of the charge are increased and the C.sub.fix charge is reduced and, with a lower gas consumption, it is proceeded the other way round, while keeping the amount and composition of the pig iron produced substantially constant.

    摘要翻译: 通过使用直接还原区将铁矿石还原成海绵铁,以及用于生产熔融生铁的熔化气化区,除了生产熔融生铁以外,还可以获得电能,除铁矿石和固体燃料外, 使用碳载体,并且将含氧气体供应至熔化气化区。 还原气体形成被送入直接还原区。 在那里反应的还原气体作为顶部气体供给到包括涡轮机的发电厂。 为了通过同时避免对生铁生产中的冶金条件的任何影响及其进一步加工,使发电量适应功率消耗,进入熔化气化区的碳载体的电荷随着气体的变化而变化 发电厂的消耗以较高的天然气消耗量增加,挥发性成分增加,Cfix充电量减少,而在较低的耗气量的情况下,以相反的方式进行,同时保持 生铁的量和组成基本上是恒定的。

    Process for the production of pig iron using cyclone
    5.
    发明授权
    Process for the production of pig iron using cyclone 失效
    使用旋风式生产生铁的工艺

    公开(公告)号:US4851039A

    公开(公告)日:1989-07-25

    申请号:US188715

    申请日:1988-04-29

    申请人: Gero Papst Rolf Hauk

    发明人: Gero Papst Rolf Hauk

    IPC分类号: C21B11/08 C21B11/00 C21B13/14

    摘要: A process for the production of pig iron from fine ore is described, in which initially the fine ore undergoes prereduction to a degree of metallization of preferably 65 to 75%. The sponge iron obtained is then melted down and under goes a final reduction. This process takes place in a melting cyclone 2, to which the sponge iron is supplied by means of a central opening 1 and into which are tangetially blown via a lateral opening 3 a carbon carrier, an oxygen-containing gas and optionally fluxes. As a result of the angular momentum produced, the sponge iron particles are deflected to the side and melted and finally reduced by the combustion gases of the carbon carrier. The molten iron collects in an iron bath 8. The gas produced in the melting cyclone is cooled from approximately 1500.degree. C. to approximately 800.degree. C. in a waste heat system 10, as well as by admixing cooling gas supplied via a line 11 and is then used for the prereduction of the iron ore.

    摘要翻译: 描述了从细矿石生产生铁的方法,其中最初将细矿石预先还原至优选65至75%的金属化程度。 然后将获得的海绵铁熔化,并进行最终还原。 该过程在熔融旋流器2中进行,海绵铁通过中心开口1供应到其中,通过侧向开口3,碳载体,含氧气体和任选的助熔剂对其进行正向吹送。 作为产生角动量的结果,海绵铁颗粒被偏转到侧面并且被碳载体的燃烧气体熔化并最终减少。 铁水在铁浴槽8中收集。在废热系统10中,将熔融旋流器中产生的气体从大约1500℃冷却至约800℃,以及通过混合通过管线11供应的冷却气体 然后用于铁矿石的预还原。

    Melting gasifier
    7.
    发明授权
    Melting gasifier 失效
    熔化气化器

    公开(公告)号:US4846449A

    公开(公告)日:1989-07-11

    申请号:US136374

    申请日:1987-12-22

    摘要: A novel melting gasifier (7) is disclosed, in which material at least largely comprising metal is melted in a fluidized bed. The latter is maintained by oxygen-containing gas laterally injected through approximately equidistant nozzles in the lower part of the melting gasifier. A carbon carrier and from above the material to be melted are also introduced into the melting gasifier. Over at least part of the fluidized bed height, the gasifier has a horizontal cross-section, which has different dimensions in two directions perpendicular to one another. The nozzles can project by different amounts into the gasifier vessel.

    摘要翻译: 公开了一种新颖的熔融气化器(7),其中至少在很大程度上包含金属的材料在流化床中熔化。 后者通过在熔化气化器的下部中通过大致等距的喷嘴横向注入的含氧气体来维持。 碳载体和从待熔化的材料上方也被引入熔化气化器中。 在流化床高度的至少一部分上,气化器具有水平横截面,其在彼此垂直的两个方向上具有不同的尺寸。 喷嘴可以通过不同的量投射到气化器容器中。

    Process for producing gas containing CO and H.sub.2
    8.
    发明授权
    Process for producing gas containing CO and H.sub.2 失效
    生产含CO和H2的气体的方法

    公开(公告)号:US4865626A

    公开(公告)日:1989-09-12

    申请号:US225241

    申请日:1988-07-28

    IPC分类号: C10J3/54

    摘要: A process for producing gas containing CO and H.sub.2 from pulverulent to coarse-grained coal in a coal gasifier in which a fluidized bed is produced, and to which are supplied coal, oxygen and/or one or more oxygen-containing gases. The coal is supplied in counter-current to the gas removed from the fluidized bed. Thus, the coal is dried, degassed and preheated before it enters the fluidized bed. The upper limit of the particle size of the coal is between about 10 mm and 40 mm, and is determined by the volatile matter content of the coal.

    摘要翻译: 在生产流化床的煤气化炉中生产含有CO和H 2的从粉状至粗粒煤的气体的方法,并向其供应煤,氧和/或一种或多种含氧气体。 煤被从与流化床去除的气体逆流供应。 因此,在进入流化床之前将煤干燥,脱气并预热。 煤的粒度上限在约10mm至40mm之间,由煤的挥发物质含量决定。

    Hot dust recycling apparatus
    9.
    发明授权
    Hot dust recycling apparatus 失效
    热粉尘回收设备

    公开(公告)号:US5259594A

    公开(公告)日:1993-11-09

    申请号:US815348

    申请日:1991-12-27

    摘要: A process for recycling hot dust from a gasifier or melt-down gasifier by means of a hot gas cyclone separator integrated into a pipe system is described, together with the associated apparatus. The hot dust from the hot gas cyclone separator is supplied by means of a lock system to a burner in order to overcome the pressure difference between the hot gas cyclone separator and the melt-down gasifier. By means of the lock system the dust is supplied from a lower pressure zone to a higher pressure zone. The dust to be recycled comprises coke or a mixture of coke and iron particles.

    摘要翻译: 与相关联的装置一起描述了通过集成到管道系统中的热气旋风分离器从气化炉或熔化气化器回收热灰尘的方法。 来自热气旋风分离器的热灰尘通过锁定系统供应到燃烧器,以克服热气旋风分离器和熔化气化器之间的压力差。 通过锁定系统,灰尘从较低压力区域供应到较高压力区域。 要回收的灰尘包括焦炭或焦炭和铁颗粒的混合物。

    Process for the production of pig iron and sponge iron
    10.
    发明授权
    Process for the production of pig iron and sponge iron 失效
    生产铁和海绵铁的工艺

    公开(公告)号:US5238487A

    公开(公告)日:1993-08-24

    申请号:US799415

    申请日:1991-11-27

    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。