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    • 1. 发明授权
    • Process for the production of pig iron using cyclone
    • 使用旋风式生产生铁的工艺
    • US4851039A
    • 1989-07-25
    • US188715
    • 1988-04-29
    • Gero PapstRolf Hauk
    • Gero PapstRolf Hauk
    • C21B11/08C21B11/00C21B13/14
    • C21B11/00C21B13/14Y02P10/122Y02P10/128
    • 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.
    • 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。
    • 3. 发明授权
    • Process for the production of pig iron
    • 生铁生产工艺
    • US4673432A
    • 1987-06-16
    • US819404
    • 1986-01-16
    • Rolf Hauk
    • Rolf Hauk
    • C21B13/02C21B5/00C21B11/02C21B13/00C21B13/10C21B13/14
    • C21B13/002C21B13/14Y02P10/122Y02P10/128Y02P10/136
    • 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.
    • 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。
    • 6. 发明授权
    • Process for producing pig iron
    • 生铁生产工艺
    • US4913733A
    • 1990-04-03
    • US788621
    • 1989-10-17
    • Rolf Hauk
    • Rolf Hauk
    • C21B11/02C21B11/00C21B13/00C21B13/02C21B13/14
    • C21B13/14C21B11/00C21B13/002Y02P10/122Y02P10/128Y02P10/136
    • A process for producing pig iron is described involving the use of a reduction shaft furnace 1 and a melt-down gasifier 2. The sponge iron produced from iron ore in the reduction shaft furnace is fed into the melt-down gasifier and converted into a pig iron melt. The gas produced in the melt-down gasifier is passed as reducing gas into the reduction shaft furnace both via a cyclone separator 11 and a line 12 and directly via a line 13. The top gas leaving the reduction shaft furnace, after passing through a scrubber 4, is largely returned via a CO.sub.2 scrubber 6, in which CO.sub.2 and H.sub.2 O are removed from the gas, in such a way that it can be used for forming the reducing gas in the melt-down gasifier and also as a cooling gas for the reducing gas produced in said gasifier.
    • 描述了生产生铁的方法,其涉及使用还原竖炉1和熔化气化器2.在还原竖炉中由铁矿石生产的海绵铁进料到熔化气化器中并转化成猪 铁熔。 在熔化气化器中产生的气体通过旋风分离器11和管线12直接通过管线13作为还原气体进入还原炉中。经过还原炉的顶部气体经过洗涤器 如图4所示,大部分通过CO 2洗涤器6返回,其中CO 2和H 2 O从气体中除去,使得其可以用于在熔化气化器中形成还原气体,并且还可以作为冷却气体 在所述气化器中产生的还原气体。
    • 8. 发明授权
    • Method for producing molten pig iron or steel pre-products in a
melt-down gasifier
    • 在熔融气化炉中生产生铁或钢制前产品的方法
    • US4588437A
    • 1986-05-13
    • US563359
    • 1983-12-20
    • Werner KepplingerRolf Hauk
    • Werner KepplingerRolf Hauk
    • C21B11/02C21B13/00C21B13/02C21B11/08
    • C21B13/002Y02P10/136
    • There is disclosed a method and a melt-down gasifier for producing molten pig iron or steel pre-products and reduction gas. A first fluidized-bed zone is formed by coke particles, with a heavy motion of the particles, above a first blow-in plane by the addition of coal and by blowing in oxygen-containing gas. Iron sponge particles and/or pre-reduced iron ore particles with a substantial portion of particle sizes of more than 3 mm are added to the first fluidized-bed zone from above. A melt-down gasifier for carrying out the method is formed by a refractorily lined vessel having openings for the addition of coal and ferrous material, openings for the emergence of the reduction gases produced, and openings for tapping the metal melt and the slag. Pipes or nozzles enter into the meltdown gasifier above the slag level at at least two different heights.
    • 公开了一种用于生产熔融生铁或钢预制品和还原气体的方法和熔化气化器。 第一流化床区由焦炭颗粒形成,颗粒的重运动通过加入煤和吹入含氧气体在第一吹入平面之上。 将大部分粒径大于3mm的铁海绵颗粒和/或预还原的铁矿石颗粒从上方加入到第一流化床区。 用于实施该方法的熔化气化器由具有用于添加煤和铁质材料的开口的耐火衬里容器形成,用于产生的还原气体的出口的开口,以及用于挖掘金属熔体和炉渣的开口。 管道或喷嘴在至少两个不同高度的炉渣水平面上进入熔化炉中。