Arrangement for the dosed introduction of fine-particulate material into a reactor vessel
    2.
    发明授权
    Arrangement for the dosed introduction of fine-particulate material into a reactor vessel 失效
    用于将细颗粒材料定量引入反应器容器的布置

    公开(公告)号:US06210627B1

    公开(公告)日:2001-04-03

    申请号:US09284095

    申请日:1999-04-07

    IPC分类号: C21B1314

    摘要: An arrangement for the dosed introduction of fine-particulate material into a reactor vessel comprises a fluidized bed sluice, into which a material supply means enters from above and into which a gas duct feeding a fluidization gas runs in the lower end region thereof and which includes an overflow tube for conveying on the fine-particulate material. In order to introduce the fine-particulate material into the reactor vessel at specific zones, a plurality of independently connectable fluidized bed sluices are provided outside of the reactor vessel, the fluidized bed sluices having overflow tubes which project into the interior of the reactor vessel.

    摘要翻译: 用于将细颗粒材料定量引入反应器容器的布置包括流化床闸门,物料供应装置从上方进入其中,供给流化气体的气体管道在其下端区域中延伸,并且包括 用于在细颗粒材料上输送的溢流管。 为了在特定区域将细颗粒材料引入反应器容器中,在反应器外部设置多个可独立连接的流化床闸门,流化床闸门具有突出到反应器容器内部的溢流管。

    Method of charging metal carriers to a melt-down gasifying zone
    3.
    发明授权
    Method of charging metal carriers to a melt-down gasifying zone 失效
    将金属载体装入熔化气化区的方法

    公开(公告)号:US06277172B1

    公开(公告)日:2001-08-21

    申请号:US09205425

    申请日:1998-12-04

    IPC分类号: C21B1100

    摘要: In a method of charging metal carriers which contain a portion of fines and are at least partially reduced and carbon carriers to a melter gasifier (10) in which a melt-down gasifying zone (11) is maintained, the metal carriers and the carbon carriers are fed into the melter gasifier (10) above the level of the melt-down gasifying zone (11) and descend to the melt-down gasifying zone (11) and travel through the same forming a metal melt and producing a reducing gas by coal gasification. In order to prevent a partial discharge of the metal carriers from the melter gasifier (10) during the charging of the same and to be able to achieve uniform distribution of the carbon carriers and the metal carriers, both the carbon carriers and the metal carriers are introduced into the melter gasifier centrally above the melt-down gasifying zone (11), preferably gravitationally, with a central strand (32) of metal carriers being formed which is peripherally surrounded by a jacket strand (37) formed by the carbon carriers.

    摘要翻译: 在将含有一部分细粉并且至少部分还原的金属载体和碳载体装入其中保持熔化气化区(11)的熔化气化器(10)的方法中,金属载体和碳载体 被送入熔融气化炉(10)的高于熔化气化区(11)的水平面并下降到熔化气化区(11)并通过其形成金属熔体并由煤生产还原气体 气化。 为了防止金属载体在其充电期间从熔融气化器(10)中部分放电,并且能够实现碳载体和金属载体的均匀分布,碳载体和金属载体都是 优选重力地在熔融气化区(11)的上方引入到熔融气化器中,形成金属载体的中心线(32),周边地被由碳载体形成的护套线(37)围绕。

    Process for producing liquid pig iron or semifinished steel products from ore
    4.
    发明授权
    Process for producing liquid pig iron or semifinished steel products from ore 失效
    从矿石生产液态生铁或半成品钢产品的工艺

    公开(公告)号:US06179896B2

    公开(公告)日:2001-01-30

    申请号:US09101150

    申请日:1998-07-01

    IPC分类号: C21B1100

    CPC分类号: C21B13/002

    摘要: In a method of producing molten pig iron (9) or steel pre-products from lump ore which in at least one reduction zone is reduced to partially and/or completely reduced sponge iron (4) in a shaft furnace, the sponge iron (4) is melted down in a melt-down gasifying zone (8) of a melter gasifier (1) under supply of carbon-containing material (2) and oxygen and while simultaneously forming a reducing gas. To ensure that there will be a specific gap volume in the bed (13) of solid carbon carriers (2) even when charging fine-particle sponge iron (14) and hence that the bed (13) of solid carbon carriers (2) will be thoroughly flown through by gas, at least the sponge iron (4) is charged to the melt-down gasifying zone (8) discontinually, under formation of areas (14) of piled-up sponge iron which are embedded in the bed (13) of carbon carriers (2) and which are superposed and which are separated by solid carbon carriers (2), wherein each of the areas (14) of piled-up sponge iron while sparing a cross section zone (15) of the melt-down gasifying zone (8) extends over the cross section of the same and wherein the reducing gas forming the melt-down gasifying zone (8) flows past the areas (14) of piled-up sponge iron under melting of the same and upwards through the cross section zones (15) that are free from sponge iron and formed from carbon carriers (2), and flows through these zones.

    摘要翻译: 在生产熔融生铁(9)或块矿的钢制前产品的方法中,在竖炉中至少一个还原区被还原成部分和/或完全还原海绵铁(4)的方法中,海绵铁 )在含碳材料(2)和氧的供应下同时形成还原气体的同时在熔化气化器(1)的熔化气化区(8)中熔化。 为了确保在固体碳载体(2)的床(13)中将具有特定的间隙体积,即使在加入细颗粒海绵铁(14)时,因此固体碳载体(2)的床(13)将会 通过气体彻底地流通,至少将海绵铁(4)不连续地装入熔化气化区(8)中,形成嵌入床(13)中的堆积海绵铁的区域(14) )的碳载体(2)并且它们被重叠并且被固体碳载体(2)分离,其中堆积的海绵铁的每个区域(14)同时保持熔融物的横截面区域(15) 向下气化区(8)在其横截面上延伸,并且其中形成熔化气化区(8)的还原气体流过堆积的海绵铁的区域(14),熔融的同时向上通过 横截面区域(15),其不含海绵铁并由碳载体(2)形成并且流过这些区域。

    Process for producing sponge iron
    6.
    发明授权
    Process for producing sponge iron 失效
    海绵铁生产工艺

    公开(公告)号:US6149708A

    公开(公告)日:2000-11-21

    申请号:US101208

    申请日:1998-08-04

    IPC分类号: C21B13/00 C21B13/14

    摘要: A process for producing sponge iron by directly reducing particulate, iron-oxide-containing material, wherein reducing gas that is formed from carbon carriers and an oxygen-containing gas in a melt-down gasifying zone is introduced into a reduction zone that contains the iron-oxide-containing material, characterized by the combination of the following characteristic features: (i) to the reduction zone, a reducing gas is fed which contains between iron-oxide-containing material 20 g and 100 g per Nm.sup.3 of a dust having a carbon content of between 30 mass % and 70 mass %; and (ii) the iron-oxide-containing material is exposed to the reducing gas for a time period that exceeds the period for a complete reduction. The process of the invention renders it possible to produce a sponge iron of elevated carbon content.

    摘要翻译: PCT No.PCT / AT97 / 00238 Sec。 371日期:1998年8月4日 102(e)日期1998年8月4日PCT 1997年11月5日PCT公布。 公开号WO98 / 20172 日期1998年5月14日一种通过直接还原颗粒状氧化铁的材料制造海绵铁的方法,其中在熔融气化区中由碳载体和含氧气体形成的还原气体被引入还原区 其含有含铁氧化物的材料,其特征在于结合以下特征:(i)至还原区,进料还原气体,该还原气体含有含铁氧化物的材料20g和100g每Nm 3的 碳含量在30质量%至70质量%之间的粉尘; 和(ii)含氧化铁材料暴露于还原气体超过完全还原期间的时间。 本发明的方法使得可以生产具有高碳含量的海绵铁。

    Process for reducing ore fines and arrangement for carrying out the
process
    7.
    发明授权
    Process for reducing ore fines and arrangement for carrying out the process 失效
    减少矿石罚款和进行安排的过程

    公开(公告)号:US6030432A

    公开(公告)日:2000-02-29

    申请号:US913505

    申请日:1997-11-17

    CPC分类号: C21B13/0033 Y02P10/136

    摘要: In a process for the reduction of fine ore by reducing gas in the fluidized bed method, the following characteristic features are realized in order to achieve a uniform and even degree of metallization at optimum utilization of the reducing gas and while minimizing the amount of reducing gas employed, that the fine ore is fractionated by aid of the reducing gas into at least two fractions having different grain size distributions, that each fraction is reduced by the reducing gas in a separate fluidized bed, wherein the reducing gas maintains a first fluidized bed containing the coarse-grain fraction and separates the fine-grain fraction from the same, is accelerated together with the fine-grain fraction, subsequently under pressure release forms a further fluidized bed, into which it is continuously injected in a radially symmetrical manner and from below, and wherein, furthermore, secondary reducing gas additionally is directly injected into the further fluidized bed in a radially symmetrical manner, and that reduced ore is discharged from both the first and the second fluidized beds.

    摘要翻译: PCT No.PCT / AT96 / 00045 Sec。 371日期:1997年11月17日 102(e)1997年11月17日PCT PCT 1996年3月11日PCT公布。 公开号WO96 / 29435 日期1996年9月26日在流化床方法中通过还原气体还原细矿石的方法中,实现了以下特征,以便在最佳利用还原气体的同时实现均匀均匀的金属化,同时最小化 所用的还原气体的量,将细矿石通过还原气体分级成至少两个具有不同粒度分布的馏分,每个馏分在单独的流化床中被还原气体还原,其中还原气体保持 含有粗晶粒部分并将细晶粒部分与其分离的第一流化床与细晶粒部分一起加速,随后在压力释放下形成另外的流化床,其中它以径向方式连续注入 另外,二次还原气体另外直接注入到另外的流化床中 d以径向对称的方式,并且还原的矿石从第一和第二流化床排出。

    Process for the production of molten pig iron or steel pre-products and
a plant for carrying out the process
    8.
    发明授权
    Process for the production of molten pig iron or steel pre-products and a plant for carrying out the process 失效
    用于生产生铁或钢铁前处理产品的工艺以及进行该工艺的工厂

    公开(公告)号:US5948139A

    公开(公告)日:1999-09-07

    申请号:US793875

    申请日:1997-04-17

    CPC分类号: C21B13/002 Y02P10/136

    摘要: In a process for the production of molten pig iron or steel pre-products from fine-particulate iron-cintaining material, in a meltdown-gasifying zone of a melter gasifier (1), under the supply of carbon-containing material and oxygen-containing gas at the simultaneous formation of a reducing gas, in a bed formed of sold carbon carriers, the iron-containing material is melted when passing the bed. To be able to employ a charge here up to 100% of which consist of fine ore, while reliably avoiding discharge of the supplied fine ore, a high-temperature combustion and/or gasification xzone is formed by combusting and/or gasifying carbon-containing material under direct supply of oxygen in a killing space (III) formed above the bed, into which high-temperature combustion and/or gasification zone the fine-particulate iron-containing material is directly introduced, wherein at least incipient surface melting of the iron-containing material and agglomeration of the same are carried out by means of the heat released during the reaction of the carbon-containing material.

    摘要翻译: PCT No.PCT / AT96 / 00129 Sec。 371日期1997年04月17日 102(e)日期1997年4月17日PCT提交1996年7月18日PCT公布。 出版物WO97 / 04137 日期1997年2月6日在熔炼炉气化炉(1)的熔化气化区中,在含碳含量较高的熔融气化炉(1)的熔化气化区中生产熔融生铁或钢铁预制品的方法 材料和含氧气体在同时形成还原气体时,在由销售的碳载体形成的床中,含铁材料在通过床时熔化。 为了能够在其中使用100%的矿石,在可靠地避免供给的细矿石排放的同时,通过燃烧和/或气化含碳的方法形成高温燃烧和/或气化xzone 在床上形成的杀伤空间(III)中直接供应氧的材料,高温燃烧和/或气化区直接引入细颗粒含铁材料,其中至少初期的铁表面熔化 的含有材料和其附聚物通过在含碳材料的反应期间释放的热量进行。

    Process for the production of liquid pig iron or liquid steel pre-products

    公开(公告)号:US06254663B1

    公开(公告)日:2001-07-03

    申请号:US09221494

    申请日:1998-12-28

    IPC分类号: C21B1314

    摘要: In the process for the production of liquid pig iron 943) or liquid steel pre-products from charging substances comprising iron ore (5) and fluxes and at least partially containing a portion of fines, the iron ore is directly reduced to sponge iron in at least two reduction stages (1, 2) by the fluidized bed method, the sponge iron is melted in a melt-down gasifying zone (39) under the supply of carbon carriers and an oxygen-containing gas, and a CO- and H2-containing reducing gas is produced which is injected into reduction zones of the reduction stages (1, 2), is reacted there, is withdrawn as a top gas and optionally is supplied to a consumer. To achieve uniform reduction of the iron ore at optimum exploitation of the reducing gas, the iron ore (5) in a first reduction stage (1) by aid of the reducing gas is fractionated into at least two fractions having different grain size distributions each, each fraction is reduced by the reducing gas in a separate fluidized bed (6, 15), wherein the reducing gas maintains a first fluidized bed (6) containing the coarse-grain fraction and separates the fine-grain fraction from the same, and wherein, further, reducing gas is additionally introduced into the further fluidized bed (15) directly reduced iron ore (5) is discharged both from the first and from the further fluidized bed (6, 15) and the fine- and the coarse-grain fraction reduced in the first reduction stage (1) are further reduced in at least one further reduction stage (2) operating in the same manner as the first reduction stage (1) and from the last reduction stage (2) the fine-grain fraction is introduced into the melt-down gasifying zone (39) while being agglomerated by provision of oxygen, and the coarse-grain fraction is fed directly into the melt-down gasifying zone (39) gravitationally (FIG. 1).

    Process for producing liquid pig iron or intermediate steel products and installation for implementing it
    10.
    发明授权
    Process for producing liquid pig iron or intermediate steel products and installation for implementing it 失效
    生产液体生铁或中间钢产品的工艺及其实施的安装

    公开(公告)号:US06264722B1

    公开(公告)日:2001-07-24

    申请号:US08983529

    申请日:1998-01-20

    IPC分类号: C21B1314

    摘要: In a process for producing molten pig iron or steel preproducts from fine-particulate iron containing material in a meltdown gasifying zone of a melter gasifier, under the supply of carbon-containing material and oxygen-containing gas at the simultaneous formation of a reducing gas in a bed formed of solid carbon carriers, the iron-containing material is melted when passing the bed. In order to be able to work with a charge consisting of fine ore by up to 100%, yet reliably avoid discharging of the fine ore supplied, a supply duct for fine-particulate coal, such as coal dust and/or other carbon-containing materials including volatile portions, and a duct feeding an oxygen-containing gas enter in the vicinity of the reducing-gas discharge duct of the melter gasifier, the fine-particulate coal and/or other carbon-containing materials including volatile portions are reacted to fine-particulate coke upon introduction into the melter gasifier, the fine-particulate coke is discharged along with the reducing gas carried off the melter gasifier and is separated in a separating means.

    摘要翻译: 在熔融气化炉的熔化气化区的含细粒铁的材料生产熔融生铁或钢前产品的方法中,在含碳材料和含氧气体的供应下,同时形成还原气体 由固体碳载体形成的床,当含铁材料通过床时熔化。 为了能够将由细矿石组成的装置加工达100%,可靠地避免排出提供的细矿石,用于细粉煤的供应管道,例如煤粉和/或其他含碳的 包括挥发部分的材料和供给含氧气体的管道进入熔化器气化器的还原气体排放管道附近,包含挥发部分的细颗粒煤和/或其它含碳材料反应至细 颗粒状焦炭在引入熔化炉气化器中时,微粉末焦炭与从气化器气化器输送的还原气体一起排出,并在分离装置中分离。