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    Method and plant for the heat treatment of solids containing iron oxide using a fluidized bed reactor
    1.
    发明申请
    Method and plant for the heat treatment of solids containing iron oxide using a fluidized bed reactor 有权
    使用流化床反应器对含有氧化铁的固体进行热处理的方法和设备

    公开(公告)号：US20070137435A1

    公开(公告)日：2007-06-21

    申请号：US10540435

    申请日：2003-12-01

    申请人： Andreas Orth ,  Martin Hirsch ,  Peter Weber ,  Stuart Sneyd ,  Dirk Nuber ,  Michael Stroder

    发明人： Andreas Orth ,  Martin Hirsch ,  Peter Weber ,  Stuart Sneyd ,  Dirk Nuber ,  Michael Stroder

    IPC分类号： C21B13/00

    CPC分类号： B01J8/18 ,  B01J8/1863 ,  B01J8/30 ,  B01J8/44 ,  B01J2208/00061 ,  C22B1/10 ,  C22B5/14 ,  F27B15/02 ,  F27B15/08 ,  F27B15/10

    摘要： The present invention relates to a method and a plant for the heat treatment of solids containing iron oxide, in which fine-grained solids are heated to a temperature of 700 to 1150° C. in a fluidized bed reactor (8). To improve the utilization of energy, it is proposed to introduce a first gas or gas mixture from below through at least one gas supply tube (9) into a mixing chamber region (15) of the reactor (8), the gas supply tube (9) being at least partly surrounded by a stationary annular fluidized bed (12) which is fluidized by supplying fluidizing gas. The gas velocities of the first gas or gas mixture and of the fluidizing gas for the annular fluidized bed (12) are adjusted such that the Particle-Froude-Numbers in the gas supply tube (9) are between 1 and 100, in the annular fluidized bed (12) between 0.02 and 2, and in the mixing chamber (15) between 0.3 and 30.

    摘要翻译： 本发明涉及用于热处理包含氧化铁的固体的方法和设备，其中在流化床反应器（8）中将细粒固体加热至700至1150℃的温度。 为了提高能量的利用率，建议从下方通过至少一个气体供给管（9）将第一气体或气体混合物引入反应器（8）的混合室区域（15），气体供给管 9）至少部分地被固定的环形流化床（12）包围，所述静止环形流化床通过供应流化气体而被流化。 第一气体或气体混合物以及用于环形流化床（12）的流化气体的气体速度被调整为使得气体供应管（9）中的“微粒 - 弗劳德数”在1和100之间，在环形 流化床（12）在0.02和2之间，在混合室（15）中在0.3和30之间。

    Method and plant for the heat treatment of solids containing iron oxide using a fluidized bed reactor
    3.
    发明授权
    Method and plant for the heat treatment of solids containing iron oxide using a fluidized bed reactor 有权
    使用流化床反应器对含有氧化铁的固体进行热处理的方法和设备

    公开(公告)号：US07625422B2

    公开(公告)日：2009-12-01

    申请号：US10540435

    申请日：2003-12-01

    申请人： Andreas Orth ,  Martin Hirsch ,  Peter Weber ,  Stuart Sneyd ,  Dirk Nuber ,  Michael Ströder

    发明人： Andreas Orth ,  Martin Hirsch ,  Peter Weber ,  Stuart Sneyd ,  Dirk Nuber ,  Michael Ströder

    IPC分类号： B01J8/24 ,  C22B1/10 ,  C22B5/14

    CPC分类号： B01J8/18 ,  B01J8/1863 ,  B01J8/30 ,  B01J8/44 ,  B01J2208/00061 ,  C22B1/10 ,  C22B5/14 ,  F27B15/02 ,  F27B15/08 ,  F27B15/10

    摘要： The present invention relates to a method and a plant for the heat treatment of solids containing iron oxide, in which fine-grained solids are heated to a temperature of 700 to 1150° C. in a fluidized bed reactor (8). To improve the utilization of energy, it is proposed to introduce a first gas or gas mixture from below through at least one gas supply tube (9) into a mixing chamber region (15) of the reactor (8), the gas supply tube (9) being at least partly surrounded by a stationary annular fluidized bed (12) which is fluidized by supplying fluidizing gas. The gas velocities of the first gas or gas mixture and of the fluidizing gas for the annular fluidized bed (12) are adjusted such that the Particle-Froude-Numbers in the gas supply tube (9) are between 1 and 100, in the annular fluidized bed (12) between 0.02 and 2, and in the mixing chamber (15) between 0.3 and 30.

    摘要翻译： 本发明涉及用于热处理包含氧化铁的固体的方法和设备，其中在流化床反应器（8）中将细粒固体加热至700至1150℃的温度。 为了提高能量的利用率，建议从下方通过至少一个气体供给管（9）将第一气体或气体混合物引入反应器（8）的混合室区域（15），气体供给管 9）至少部分地被固定的环形流化床（12）包围，所述静止环形流化床通过供应流化气体而被流化。 第一气体或气体混合物以及用于环形流化床（12）的流化气体的气体速度被调整为使得气体供应管（9）中的“微粒 - 弗劳德数”在1和100之间，在环形 流化床（12）在0.02和2之间，在混合室（15）中在0.3和30之间。

    Process and plant for reducing solids containing iron oxide
    5.
    发明申请
    Process and plant for reducing solids containing iron oxide 审中-公开
    用于还原含有氧化铁的固体的方法和装置

    公开(公告)号：US20070079666A1

    公开(公告)日：2007-04-12

    申请号：US10567821

    申请日：2004-07-16

    申请人： Stuart Sneyd ,  Martin Hirsch ,  Dirk Nuber

    发明人： Stuart Sneyd ,  Martin Hirsch ,  Dirk Nuber

    IPC分类号： C21B15/00

    CPC分类号： C22B5/18 ,  C21B13/0033 ,  C21B13/008 ,  C21B13/0086 ,  C22B1/248 ,  C22B5/14 ,  Y02P10/136

    摘要： This invention relates to a process for reducing solids containing iron oxide, such as iron ore, in which fine-grained solids are heated and at least partly calcined in a pre-heating stage (2, 9). In a first fluidized-bed reactor (14) downstream of the preheating stage (2, 9), the solids are prereduced and reduced further in a second fluidized-bed reactor (16). Downstream of the second reactor (16) a briquetting stage (20) is provided, in which the solids are briquetted at a temperature above 500° C. To increase the energy efficiency of the process and improve the flowability of the solids in the briquetting stage (20), magnesite is added to the preheating stage (2, 9) together with the solids containing iron oxide, which magnesite is at least partly calcined in the preheating stage (2, 9) to obtain magnesium oxide. Furthermore, the invention relates to a corresponding plant.

    摘要翻译： 本发明涉及一种用于还原含铁氧化物的固体的方法，例如铁矿石，其中细粒固体被加热并且在预热阶段（2,9）中至少部分地煅烧。 在预热阶段（2,9）下游的第一流化床反应器（14）中，固体在第二流化床反应器（16）中被进一步还原并还原。 在第二反应器（16）的下游提供压块级（20），其中固体在500℃以上的压块压块。为了提高该方法的能量效率并提高压块阶段的固体的流动性 （20）中，将菱镁矿与含有氧化铁的固体一起加入到预热段（2,9）中，该氧化铁在预热阶段（2,9）中至少部分地煅烧以获得氧化镁。 此外，本发明涉及相应的设备。

    Process for conveying granular solids
    6.
    发明授权
    Process for conveying granular solids 有权

    公开(公告)号：US06666629B2

    公开(公告)日：2003-12-23

    申请号：US10114333

    申请日：2002-04-02

    申请人： Martin Hirsch ,  Stuart Sneyd ,  Lothar Formanek

    发明人： Martin Hirsch ,  Stuart Sneyd ,  Lothar Formanek

    IPC分类号： B65G5300

    CPC分类号： C21B13/0086 ,  B01J8/0025 ,  B01J2208/00539 ,  B65G53/521 ,  Y02P10/136

    摘要： A process of continuously conveying granular solids from a first zone with a pressure of 4 to 16 bar through a descending line and via an ascending line to a second zone with a pressure which is lower than in the first zone by 3 to 15 bar, by means of a gaseous medium. To ensure that the pressure between two regions can be reduced at low cost and with little maintenance effort when continuously conveying granular solids, a gaseous medium is injected into a tube through an upwardly directed nozzle at the point where the granular solids are conveyed through a descending line into an ascending line.

    Method and plant for removing gaseous pollutants from exhaust gases
    7.
    发明申请
    Method and plant for removing gaseous pollutants from exhaust gases 审中-公开
    从废气中除去气态污染物的方法和设备

    公开(公告)号：US20060228281A1

    公开(公告)日：2006-10-12

    申请号：US10540437

    申请日：2003-11-14

    申请人： Michael Ströder ,  Stuart Sneyd ,  Klaus Hasselwander

    发明人： Michael Ströder ,  Stuart Sneyd ,  Klaus Hasselwander

    IPC分类号： B01D53/34

    CPC分类号： B01D53/685 ,  B01D53/12 ,  B01D53/508 ,  B01J8/1809 ,  B01J8/1818 ,  B01J8/1863 ,  B01J2208/00548 ,  B01J2208/00725

    摘要： The present invention relates to a method for removing gaseous pollutants from exhaust gases, in which the gaseous pollutants react with a fine-grained reactant by forming solids in a fluidized-bed reactor (2), and to a corresponding plant. To achieve low pollutant concentrations in the clean gas with an almost stoichiometric consumption of reactant, it is proposed to introduce the exhaust gas from below through a preferably central gas supply tube (20) into a mixing chamber (21) of the reactor (2), the gas supply tube (20) being at least partly surrounded by a stationary annular fluidized bed (22) of reactant, which bed is fluidized by supplying fluidizing gas, and to adjust the the gas velocities of the exhaust gas and of the fluidizing gas for the annular fluidized bed (22) such that the Particle-Froude-Numbers in the gas supply tube (20) are between 1 and 100, in the annular fluidized bed (22) between 0.02 and 2, and in the mixing chamber (21) between 0.3 and 30.

    摘要翻译： 本发明涉及一种从排气中除去气态污染物的方法，其中气态污染物通过在流化床反应器（2）中形成固体和相应的设备与细粒反应物反应。 为了以几乎化学计量的反应物消耗清洁气体中的低污染物浓度，建议将来自下方的废气通过优选的中心气体供给管（20）引入反应器（2）的混合室（21） 气体供应管（20）至少部分地被反应物的固定环形流化床（22）包围，所述床通过供应流化气体而流化，并且调节废气和流化气体的气体速度 对于环形流化床（22），使得在环形流化床（22）中在0.02和2之间，并且在混合室（21）中，气体供给管（20）中的粒子 - 弗劳德数在1和100之间 ）在0.3和30之间。