Process and plant for the direct reduction of particulate iron-oxide-containing material
    3.
    发明授权
    Process and plant for the direct reduction of particulate iron-oxide-containing material 有权
    用于直接还原颗粒状氧化铁的材料的工艺和设备

    公开(公告)号:US06336954B1

    公开(公告)日:2002-01-08

    申请号:US09505559

    申请日:2000-02-17

    IPC分类号: C21B1300

    摘要: A process for the direct reduction of particulate iron-oxide-containing material by fluidization. A synthesis gas is introduced as a reducing gas into several fluidized bed zones consecutively arranged in series for the reducing gas. The reducing gas is conducted from one fluidized bed zone to another fluidized bed zone in counterflow to the particulate iron-oxide containing material. In order to reduce operating costs and, in particular, the energy demand, the temperature of the iron-oxide-containing material is adjusted in the first fluidized bed zone to be either below 400° C. (and, preferably, below 350° C.), or above 580° C. (and preferably about 650° C.), or to a temperature ranging from 400° C. to 580° C. If the temperature of the iron-oxide-containing material in the first fluidized bed zone is adjusted to be below 400° C., the temperature range in the following fluidized bed zone between 400° C. and 580° C. is passed through within a period of 10 minutes and, preferably, within 5 minutes. If the temperature of the iron-oxide-containing material in the first fluidized bed zone is adjusted to be above 580° C., the temperature range in the first fluidized bed zone between 400° C. and 580° C. is passed through within a period of time of maximally 10 minutes and, preferably, 5 minutes. If the temperature of the iron-oxide-containing material in the first fluidized bed zone is adjusted to be in the range of from 400° C. to 580° C., the iron-oxide-containing material remains within that temperature range for a maximum of 10 minutes and, preferably, 5 minutes, and the material is passed on into the following fluidized bed zone immediately after having reached the desired temperature.

    摘要翻译: 一种通过流化直接还原含氧化铁颗粒物质的方法。 将合成气作为还原气体引入连续排列为还原气体的多个流化床区域。 还原气体从一个流化床区域传导到另一个流化床区域,与含铁氧化物颗粒材料相反。 为了降低运行成本,特别是能量需求,将含铁氧化物的材料的温度在第一流化床区域调节至低于400℃(优选低于350℃) ),或高于580℃(优选约650℃),或达到400℃至580℃的温度。如果第一流化床中含氧化铁的材料的温度 将区域调节至低于400℃,在下述流化床区域中在400℃至580℃之间的温度范围在10分钟内优选在5分钟内通过。 如果将第一流化床区域中含氧化铁的材料的温度调节至高于580℃,则在400℃至580℃之间的第一流化床区域内的温度范围通过 时间最长为10分钟,最好为5分钟。 如果将第一流化床区域中含氧化铁的材料的温度调节至400℃至580℃的范围内,则含铁氧化物的材料保持在该温度范围内 最多10分钟,优选5分钟,并且在达到所需温度之后立即将材料通入下一流化床区。

    Plant for the direct reduction of particulate iron-oxide-containing material

    公开(公告)号:US06569377B2

    公开(公告)日:2003-05-27

    申请号:US10045061

    申请日:2002-01-15

    IPC分类号: C21B1300

    摘要: In a process for the direct reduction of particulate iron-oxide-containing material by fluidization, a synthesis gas is introduced as a reducing gas into several fluidized bed zones consecutively arranged in series. The reducing gas is conducted from one fluidized bed zone to another fluidized bed zone in counterflow to a flow of particulate iron-oxide containing material through the fluidized bed zones. In order to reduce operating costs and, in particular, the energy demand, various process parameters are varied according to the temperature of the iron-oxide-containing material in the first fluidized bed zone being adjusted to be below 400° C. (and, preferably, below 350° C.), above 580° C. (and preferably about 650° C.), or to a temperature within the range of from 400° C. to 580° C. If the temperature of the iron-oxide-containing material in the first fluidized bed zone is maintained to be below 400° C., the temperature of the iron-oxide-containing material in the following fluidized bed zone is passed through the temperature range between 400° C. and 580° C. within a period of 10 minutes and, preferably, within 5 minutes. If the temperature of the iron-oxide-containing material in the first fluidized bed zone is adjusted to a temperature above 580° C., the temperature range of between 400° C. and 580° C. in the first fluidized bed zone is passed through within a maximum period of time of 10 minutes and, preferably, 5 minutes. If the temperature of the iron-oxide-containing material in the first fluidized bed zone is adjusted to be within the range of from 400° C. to 580° C., the iron-oxide-containing material remains in the first fluidized bed zone within that temperature range for a maximum of 10 minutes and, preferably, 5 minutes, and the material is then passed on into the following fluidized bed zone immediately after having reached the desired temperature.

    Method for reducing a particulate material containing a metal, especially iron ore
    5.
    发明授权
    Method for reducing a particulate material containing a metal, especially iron ore 有权
    用于还原含有金属,特别是铁矿石的颗粒材料的方法

    公开(公告)号:US07597739B2

    公开(公告)日:2009-10-06

    申请号:US11820749

    申请日:2007-06-20

    IPC分类号: C21B13/14

    摘要: In a process for reducing iron-ore-containing particulate material in at least a two-stage process, reducing gas is conducted through at least two reaction zones consecutively arranged in series and formed by a moving particulate material and the particulate material passes through the reaction zones in reverse order to the reducing gas, with the particulate material being heated in the reaction zone arranged first for the particulate material and being reduced in the further reaction zone.In order to achieve a maximum preheating temperature without any formation of magnetite, the reducing gas added to the first reaction zone is conditioned such that no or hardly any reduction takes place, although for the particulate material a preheating temperature within the fringe range of starting a reduction is achieved, whereby either the degree of oxidation of the reducing gas is increased or the temperature of the reducing gas is decreased or both measures are carried out jointly and whereby, in the reactor zone arranged second for the iron ore, a temperature level of at least about 600° C., preferably in the range of between 600 and 700° C., in particular of between 620 and 660° C., is adjusted and the iron-oxide-containing material is reduced to wuestite (FIG. 1).

    摘要翻译: 在至少两阶段工艺中还原含铁矿石颗粒材料的方法中,还原气体通过至少两个串联连续排列的反应区进行,并由移动的颗粒材料形成,颗粒材料通过反应 区域与还原气体相反,其中颗粒材料在反应区域中被加热,首先用于颗粒材料并在另外的反应区域中被还原。 为了达到最大预热温度而没有任何形成磁铁矿,添加到第一反应区域的还原气体被调节,使得不发生或几乎不发生任何还原,尽管对于颗粒材料,预热温度在起始 由此可以减少还原气体的氧化程度,还原气体的温度降低或两者兼而有之,由此在铁矿石排列第二的反应器区域中, 至少约600℃,优选在600和700℃之间,特别是在620和660℃之间,并且将含铁氧化物的材料还原成为硅酸盐(图1 )。

    PROCESS AND APPARATUS FOR PRODUCING METALS AND/OR PRIMARY METAL PRODUCTS
    6.
    发明申请
    PROCESS AND APPARATUS FOR PRODUCING METALS AND/OR PRIMARY METAL PRODUCTS 有权
    用于生产金属和/或主要金属产品的方法和装置

    公开(公告)号:US20120313300A1

    公开(公告)日:2012-12-13

    申请号:US13543291

    申请日:2012-07-06

    IPC分类号: F27D3/18 F27D3/08

    摘要: The invention relates to an apparatus for producing metals and/or primary metal products, in particular pig iron and/or primary pig iron products, in which a metal-containing charge material, in particular in fine particle form, is introduced, using pneumatic conveying, by means of a carrier gas stream, in the form of a stream of medium formed from the charge material and the carrier gas stream, into a melting unit, in particular a melter gasifier, for further processing. According to the invention, the charge material is introduced after the carrier gas stream has been separated off and separately at at least two introduction points, so that at least two partial quantities of the charge material can be introduced independently of one another and continuously or in stacked form.

    摘要翻译: 本发明涉及一种用于生产金属和/或初级金属产品,特别是生铁和/或主要生铁产品的设备,其中使用气动输送(特别是细颗粒形式)引入含金属的充电材料 通过载气流以从充电材料和载气流形成的介质流的形式,形成熔化单元,特别是熔化器气化器,用于进一步处理。 根据本发明,在载气流已经在至少两个引入点被分离并分开之后引入充电材料,使得至少两个部分量的电荷材料可以彼此独立地引入并且连续地或以 堆叠形式。

    Process and apparatus for producing metals and/or primary metal products
    7.
    发明授权
    Process and apparatus for producing metals and/or primary metal products 有权
    用于生产金属和/或初级金属产品的方法和设备

    公开(公告)号:US08361189B2

    公开(公告)日:2013-01-29

    申请号:US13543291

    申请日:2012-07-06

    IPC分类号: C21B15/00 C22B1/00

    摘要: The invention relates to an apparatus for producing metals and/or primary metal products, in particular pig iron and/or primary pig iron products, in which a metal-containing charge material, in particular in fine particle form, is introduced, using pneumatic conveying, by means of a carrier gas stream, in the form of a stream of medium formed from the charge material and the carrier gas stream, into a melting unit, in particular a melter gasifier, for further processing. According to the invention, the charge material is introduced after the carrier gas stream has been separated off and separately at at least two introduction points, so that at least two partial quantities of the charge material can be introduced independently of one another and continuously or in stacked form.

    摘要翻译: 本发明涉及一种用于生产金属和/或初级金属产品,特别是生铁和/或主要生铁产品的设备,其中使用气动输送(特别是细颗粒形式)引入含金属的充电材料 通过载气流以从充电材料和载气流形成的介质流的形式,形成熔化单元,特别是熔化器气化器,用于进一步处理。 根据本发明,在载气流已经在至少两个引入点被分离并分开之后引入充电材料,使得至少两个部分量的电荷材料可以彼此独立地引入并且连续地或以 堆叠形式。

    Process and apparatus for producing metals and/or primary metal products
    9.
    发明授权
    Process and apparatus for producing metals and/or primary metal products 有权
    用于生产金属和/或初级金属产品的方法和设备

    公开(公告)号:US08236090B2

    公开(公告)日:2012-08-07

    申请号:US11722789

    申请日:2005-12-06

    IPC分类号: C21B15/00 C22B1/10

    摘要: The invention relates to a process and an associated apparatus for producing metals and/or primary metal products, in particular pig iron and/or primary pig iron products, in which a metal-containing charge material, in particular in fine particle form, is introduced, using pneumatic conveying, by means of a carrier gas stream, in the form of a stream of medium formed from the charge material and the carrier gas stream, into a melting unit, in particular a melter gasifier, for further processing. According to the invention, the charge material is introduced after the carrier gas stream has been separated off and separately at at least two introduction points, so that at least two partial quantities of the charge material can be introduced independently of one another and continuously or in stacked form.

    摘要翻译: 本发明涉及用于生产金属和/或初级金属产品,特别是生铁和/或主要生铁产品的方法和相关设备,其中引入含金属的电荷材料,特别是细颗粒形式 利用载气流将气流从电荷材料和载气流形成为介质流,形成熔融单元,特别是熔化气化器,用于进一步处理。 根据本发明,在载气流已经在至少两个引入点被分离并分开之后引入充电材料,使得至少两个部分量的电荷材料可以彼此独立地引入并且连续地或以 堆叠形式。

    Process and Apparatus for Producing Metals and/or Primaryh Metal Products
    10.
    发明申请
    Process and Apparatus for Producing Metals and/or Primaryh Metal Products 有权
    用于生产金属和/或金属制品的工艺和设备

    公开(公告)号:US20080047397A1

    公开(公告)日:2008-02-28

    申请号:US11722789

    申请日:2005-12-06

    IPC分类号: C21B13/00 C21B13/14 F27D3/00

    摘要: The invention relates to a process and an associated apparatus for producing metals and/or primary metal products, in particular pig iron and/or primary pig iron products, in which a metal-containing charge material, in particular in fine particle form, is introduced, using pneumatic conveying, by means of a carrier gas stream, in the form of a stream of medium formed from the charge material and the carrier gas stream, into a melting unit, in particular a melter gasifier, for further processing. According to the invention, the charge material is introduced after the carrier gas stream has been separated off and separately at at least two introduction points, so that at least two partial quantities of the charge material can be introduced independently of one another and continuously or in stacked form.

    摘要翻译: 本发明涉及用于生产金属和/或初级金属产品,特别是生铁和/或主要生铁产品的方法和相关设备,其中引入含金属的电荷材料,特别是细颗粒形式 利用载气流将气流从电荷材料和载气流形成为介质流,形成熔融单元,特别是熔化气化器,用于进一步处理。 根据本发明,在载气流已经在至少两个引入点被分离并分开之后引入充电材料,使得至少两个部分量的电荷材料可以彼此独立地引入并且连续地或以 堆叠形式。