Process for the production of pig iron using cyclone
    1.
    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。

    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。

    Process for gaining electric energy in addition to producing molten pig
iron and an arrangement for carrying out the process
    3.
    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。

    Melting gasifier
    5.
    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。

    Arrangement comprising a gasifier and a direct reduction furnace
    6.
    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 producing gas containing CO and H.sub.2
    7.
    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。

    Process for the production of molten pig iron and steel pre-products
    8.
    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。

    Process for producing molten pig iron or steel raw material
    9.
    发明授权
    Process for producing molten pig iron or steel raw material 失效
    生产生铁或钢原料的工艺

    公开(公告)号:US4755219A

    公开(公告)日:1988-07-05

    申请号:US3277

    申请日:1987-01-14

    申请人: Rolf Hauk

    发明人: Rolf Hauk

    摘要: A process for producing molten pig iron or steel raw material in which iron oxide-containing, preferably pre-reduced raw material particles are introduced from above into a fluidized bed formed from carbonaceous solid particles and an oxygen-containing carrier gas. When the fluidized bed passes through in countercurrent to the carrier gas, the solid particles are heated, reduced and melted. The fluidized bed receives additional energy through plasma heating, in such a way that the plasma energy is supplied level with the entry of the oxygen-containing carrier gas into the fluidized bed.

    摘要翻译: 一种生产生铁水或钢原料的方法,其中将含氧化铁,优选预还原的原料颗粒从上面引入到由碳质固体颗粒和含氧载气形成的流化床中。 当流化床与载气逆流通过时,固体颗粒被加热,还原和熔化。 流化床通过等离子体加热接收额外的能量,使得等离子体能量与含氧载气进入流化床的水平相等。

    Process for the production of pig iron
    10.
    发明授权
    Process for the production of pig iron 失效
    生铁生产工艺

    公开(公告)号:US4673432A

    公开(公告)日:1987-06-16

    申请号:US819404

    申请日:1986-01-16

    申请人: Rolf Hauk

    发明人: Rolf Hauk

    摘要: A process for the production of pig iron from iron ore is disclosed. The pig iron is firstly converted to sponge iron in a direct reduction shaft furnace (1) and then the sponge iron is converted to pig iron in a melt-down gasifier (2). The shaft furnace and melt-down gasifier are interconnected by means of downcomers (6). Apart from the sponge iron, the melt-down gasifier is supplied with a carbon carrier in the form of coke and oxygen-containing gas. The gas produced in the melt-down gasifier is supplied to the shaft furnace (1) in the form of reduction gas via downcomers (6), pipe (8), cyclone separator (12) and pipe (4). By means of pipes (10 and 11), cooled, cleaned blast furnace gas from shaft furnace (1) is admixed as cooling gas with the gas produced in the melt-down gasifier. With the aid of a screen (15), the melt-down gasifier is supplied with the fine fraction via pipe (7) and the shaft furnace is supplied via pipe (16) with the coarse fraction of the coke required for the operation of the plant. The coke introduced into the shaft furnace passes through the same and then enters the melt-down gasifier in preheated, dried form. The coke in the shaft furnace also leads to a reduction of CO.sub.2 and H.sub.2 O to CO and H.sub.2 and also reduces the sticking tendency of the sponge iron.

    摘要翻译: 公开了一种从铁矿石生产生铁的方法。 在直接还原竖炉(1)中首先将生铁转化为海绵铁,然后在熔融气化炉(2)中将海绵铁转化为生铁。 竖炉和熔化气化器通过降液管(6)相互连接。 除了海绵铁之外,熔化气化器还供应有焦炭和含氧气体形式的碳载体。 在熔化气化炉中产生的气体通过降液管(6),管道(8),旋风分离器(12)和管道(4)以还原气体的形式供应到竖炉(1)。 通过管道(10和11),将来自竖炉(1)的冷却,清洁的高炉煤气与作为熔化气化器中产生的气体的冷却气体混合。 借助于筛网(15),熔化气化器被供给精细馏分通过管道(7),并且竖炉通过管道(16)供应用于操作所需的焦炭的粗部分 厂。 引入竖炉的焦炭通过它,然后以预热干燥的形式进入熔化气化炉。 竖炉中的焦炭还导致CO 2和H 2 O还原成CO和H 2,并且还降低了海绵铁的粘附倾向。