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    Method and apparatus for producing hot direct reduced iron
    3.
    发明授权
    Method and apparatus for producing hot direct reduced iron 失效
    生产热直接还原铁的方法和装置

    公开(公告)号：US4725309A

    公开(公告)日：1988-02-16

    申请号：US840384

    申请日：1986-03-17

    申请人： Patrick W. MacKay ,  Ronald-Victor-Manuel Lopez-Gomez ,  Raul Prieto-de-la-Fuente ,  Marco-Aurelio Flores-Verdugo

    发明人： Patrick W. MacKay ,  Ronald-Victor-Manuel Lopez-Gomez ,  Raul Prieto-de-la-Fuente ,  Marco-Aurelio Flores-Verdugo

    IPC分类号： C21B13/02 ,  F27B1/24

    CPC分类号： C21B13/02 ,  Y02P10/136

    摘要： A method and an apparatus for the gaseous reduction of particulate iron ores is disclosed, wherein the reduced ore, commonly called DRI (Direct Reduced Iron) or sponge iron, is treated in a vertical shaft moving bed furnace and discharged from said furnace in solid particulate form at high temperature, e.g. above 500.degree. C. The shaft furnace is of the type wherein a bed of particles descends by gravity through said furnace which has an upper section where ore pellets, lumps, or the like are reduced by reaction with a hot reducing gas, and a lower section of a downwardly tapering, preferably, in a generally conical shape, which converges to an outlet discharge orifice of smaller cross sectional area than the rest of said furnace. A heat-exchanging means, optionally combined with insulation, in contact with the external surface of the wall of said lower section permits control of the temperature of said wall, whereby solids-flow problems in the furnace are minimized, producing a smooth operation and the desired hot exit temperature of the discharged DRI all in a reactor of a practical foreshortened size.

    摘要翻译： 公开了一种用于气体还原微粒铁矿石的方法和装置，其中通常称为DRI（直接还原铁）或海绵铁的还原矿石在垂直轴移动床炉中处理并从固体颗粒物从所述炉排出 在高温下形成，例如 竖炉是其中颗粒床通过重力下降通过所述炉的类型，其具有通过与热还原气体反应而减少矿石颗粒，团块等的上部，并且较低的 向下渐缩的，优选为大致圆锥形的部分，其会聚到比所述炉的其余部分更小的横截面面积的出口排出孔。 任选地与绝缘体组合的与所述下部壁的外表面接触的热交换装置允许控制所述壁的温度，由此使炉中的固体流动问题最小化，产生平稳的操作，并且 排出的DRI的所需热出口温度全部在实际的缩短尺寸的反应器中。

    Integrated steel plant with production of hot or cold DRI
    4.
    发明授权
    Integrated steel plant with production of hot or cold DRI 有权
    集成钢厂生产冷热DRI

    公开(公告)号：US08961648B2

    公开(公告)日：2015-02-24

    申请号：US13319498

    申请日：2010-05-08

    申请人： Jorge Octavio Becerra-Novoa ,  Ronald Victor Manuel Lopez-Gomez ,  Alessandro Martinis ,  Andrea Tavano

    发明人： Jorge Octavio Becerra-Novoa ,  Ronald Victor Manuel Lopez-Gomez ,  Alessandro Martinis ,  Andrea Tavano

    IPC分类号： C21B13/12 ,  C21B13/08 ,  C21B13/02 ,  F27D11/08 ,  F27D19/00 ,  C21B13/14 ,  C21B13/00 ,  F27B3/18

    CPC分类号： C21B13/143 ,  C21B13/0086 ,  C21B13/02 ,  C21B13/029 ,  C21B2100/44 ,  C21B2100/64 ,  F27B3/18 ,  Y02P10/136

    摘要： An integrated steelmaking plant for merging continuous operation of a reduction reactor producing hot DRI with the batch operation of a DRI melting furnace(s). The reactor produces hot DRI for a DRI melting furnace or cold DRI continuously even when the DRI production exceeds the DRI consumption rate of the furnace or suffers long-term operational delays. The reduction reactor has a DRI cooling zone therein which is selectively operable for cooling DRI when the hot DRI produced in the reactor can't all be consumed by the DRI melting furnace and when the capacity of the DRI bin feeding the melting furnace is insufficient to accumulate additional hot DRI. No separate DRI cooling vessel plus its gas compressor and gas cooling-cleaning system is needed, thus decreasing capital and operational costs. This also permits a flexible and modular construction and operation of a steelmaking plant with high or low pressure reduction reactors.

    摘要翻译： 用于将生产热DRI的还原反应器的连续运行与DRI熔化炉的批量操作相结合的综合炼钢厂。 即使DRI生产超过炉子的DRI消耗速率或长期运行的延迟，反应堆也会连续生产用于DRI熔化炉或冷DRI的热DRI。 还原反应器具有DRI冷却区，当反应器中产生的热DRI不能全部被DRI熔炉消耗时，并且当供给熔化炉的DRI箱的容量不足以用于冷却DRI时，其可选择性地可操作用于冷却DRI 积累额外的热DRI。 不需要单独的DRI冷却容器及其气体压缩机和气体冷却清洁系统，从而降低资本和运营成本。 这也允许具有高压或低压减压反应器的炼钢设备的灵活和模块化的结构和操作。

    INTEGRATED STEEL PLANT WITH PRODUCTION OF HOT OR COLD DRI
    5.
    发明申请
    INTEGRATED STEEL PLANT WITH PRODUCTION OF HOT OR COLD DRI 有权
    综合钢厂生产热或冷干粉

    公开(公告)号：US20120125151A1

    公开(公告)日：2012-05-24

    申请号：US13319498

    申请日：2010-05-08

    申请人： Jorge Octavio Becerra-Novoa ,  Ronald Victor Manuel Lopez-Gomez ,  Alessandro Martinis ,  Andrea Tavano

    发明人： Jorge Octavio Becerra-Novoa ,  Ronald Victor Manuel Lopez-Gomez ,  Alessandro Martinis ,  Andrea Tavano

    IPC分类号： C21B13/12 ,  F27D19/00 ,  F27D11/08 ,  C21B13/08 ,  C21D11/00

    CPC分类号： C21B13/143 ,  C21B13/0086 ,  C21B13/02 ,  C21B13/029 ,  C21B2100/44 ,  C21B2100/64 ,  F27B3/18 ,  Y02P10/136

    摘要： An integrated steelmaking plant design is disclosed for efficiently merging the continuous operation of a reduction reactor producing hot DRI with the batch operation of at least one DRI melting furnace. The direct reduction reactor is adapted for producing hot DRI for its consumption in a DRI melting furnace or for producing cold DRI when the continuous production of DRI will exceed the DRI consumption rate of the melting furnace or when it suffers long-term operational delays. The reduction reactor has a DRI cooling zone within the same reactor vessel which is selectively operable for cooling the DRI in the same reactor vessel when the hot DRI produced in said reactor will not be consumed by the DRI melting furnace and when the capacity of the hot DRI bin feeding the melting furnace is insufficient to accumulate the amount of hot DRI which will not be consumed. The need of a DRI cooling vessel with its associated gas compressor and gas cooling and cleaning system is dispensed with therefore decreasing the capital and operational costs of said steelmaking plant. The invention also allows for a flexible and modular construction and operation of a steelmaking plant and is applicable to reduction reactors whether designed to operate at high or low pressure.

    摘要翻译： 公开了一种综合炼钢设备设计，用于有效地将生产热DRI的还原反应器的连续操作与至少一个DRI熔化炉的批量操作相结合。 直接还原反应器适用于在DRI熔炉中生产热DRI，或者当DRI的连续生产将超过熔炉的DRI消耗速率或长时间的运行延迟时，生产冷DRI。 还原反应器具有在同一反应器容器内的DRI冷却区，当在所述反应器中产生的热DRI不会被DRI熔化炉消耗时，该冷却区可选择性地用于冷却同一反应器容器中的DRI， 供应熔炉的DRI仓不足以累积不会消耗的热DRI的量。 因此，不需要使用其相关联的气体压缩机和气体冷却和清洁系统的DRI冷却容器，因此降低了所述炼钢厂的资本和运营成本。 本发明还允许炼钢设备的灵活和模块化构造和操作，并且适用于还原反应器，无论是设计成在高压还是低压下运行。

    Plug valve
    8.
    发明授权
    Plug valve 失效
    旋塞阀

    公开(公告)号：US5706851A

    公开(公告)日：1998-01-13

    申请号：US562680

    申请日：1995-11-27

    申请人： Ronald Victor Manuel Lopez-Gomez ,  Cesar Humberto Valdez-Chapa ,  Manuel Ramirez-Mundo

    发明人： Ronald Victor Manuel Lopez-Gomez ,  Cesar Humberto Valdez-Chapa ,  Manuel Ramirez-Mundo

    IPC分类号： F16K5/04 ,  F16K49/00 ,  F16K27/04

    CPC分类号： F16K49/007 ,  F16K5/0407 ,  Y10T137/4442 ,  Y10T137/6579 ,  Y10T137/7036

    摘要： A high temperature water-cooled gas-tight lubricated steel plug valve for handling abrasive particulates (such as iron ore or sponge iron) having a water-cooled hollow double-walled housing with opposing inlet and outlet, a hollow internally-baffled axially water-cooled cylindrical plug with a transverse flow pipe defining a bore therethrough, at least one relatively thin-walled replaceable iron wear liner of generally cylindrical shape having corresponding bore passages and being positioned around said plug member and fixedly keyed within said housing whereby wear is generally limited to the relatively-moving interfacing inner surface of the wear liner and the outer surface of the plug member. The plug being machinable to restore the proper shape and tolerances when combined with replacement of the wear liner by one of compensatingly greater thickness. In a second embodiment, the one wear member may be fixed to the outer surface of the plug member, whereby any wear occurs between the outer surface of the wear liner and the inner surface of the housing. In a third embodiment for low temperature applications, two replaceable wear liners are used, one fixed to the housing and one fixed to the plug member where the abrasive action of the solids affects only the meeting surfaces of the two concentrically mounted wear liners.

    摘要翻译： 一种用于处理具有相对的入口和出口的水冷中空双壁壳体的磨料颗粒（例如铁矿石或海绵铁）的高温水冷气密润滑钢塞阀， 具有限定穿过其中的孔的横向流动管的至少一个冷却的圆柱形塞子，至少一个相对薄壁的可更换的耐磨衬垫，其大致圆柱形形状具有相应的孔通道，并且围绕所述插塞构件定位并固定地键入所述壳体内，因此磨损通常受到限制 到耐磨衬套的相对移动的接合内表面和插塞构件的外表面。 当与补偿较大厚度的耐磨衬垫的更换组合时，该塞子可加工以恢复适当的形状和公差。 在第二实施例中，一个耐磨构件可以固定到塞构件的外表面，由此在耐磨衬套的外表面和壳体的内表面之间发生任何磨损。 在用于低温应用的第三实施例中，使用两个可替换的耐磨衬垫，一个固定到壳体，一个固定到插塞构件，其中固体的磨蚀作用仅影响两个同心安装的磨损衬垫的会聚表面。