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29 条记录 (耗时 0.012 秒)

    A DIRECT SMELTING PROCESS
    11.
    发明公开
    A DIRECT SMELTING PROCESS 有权
    DIREKT-SCHMELZOFEN

    公开(公告)号：EP1230403A4

    公开(公告)日：2004-06-23

    申请号：EP00949007

    申请日：2000-08-07

    申请人： TECH RESOURCES PTY LTD

    发明人： DRY RODNEY JAMES

    IPC分类号： C21B13/10 ,  C21B11/00 ,  C21B11/02 ,  C21B13/00 ,  C21B13/14 ,  B21B11/00 ,  B21B13/00

    CPC分类号： C21B13/0026 ,  C21B13/14 ,  C21B2100/42 ,  C21B2100/62 ,  C21B2100/66 ,  Y02P10/136 ,  Y10S75/958

    摘要： A process for direct smelting metalliferous feed material is disclosed. Iron oxides are partially reduced in a solid state in a pre-reduction vessel. The partially reduced iron oxides are smelted to molten iron in a direct smelting vessel which contains a molten bath of iron and slag and is supplied with a solid carbonaceous material as a source of reductant and energy and with an oxygen containing gas for post-combusting carbon monoxide and hydrogen generated in the vessel. The direct smelting step generates an off-gas that contains sulphur and the off-gas is released from the direct smelting vessel. Part only of the off-gas released from the direct smelting vessel is used in the pre-reduction step to pre-reduce iron oxides in the pre-reduction vessel. Part only of the off-gas is used in the pre-reduction step in order to control the amount of sulphur that is returned with the partially reduced iron oxides to the direct smelting vessel.

    摘要翻译： 公开了一种直接熔炼含金属原料的方法。 氧化铁在预还原容器中以固态被部分还原。 将部分还原的氧化铁在直接熔炼容器中熔炼成铁水，该熔炼容器含有铁和矿渣的熔融浴并且提供有固体碳质材料作为还原剂和能量的来源以及含氧气体用于后燃烧碳 在容器中产生一氧化碳和氢气。 直接熔炼步骤产生含有硫的废气，废气从直接熔炼容器释放。 仅在预还原步骤中使用从直接熔炼容器释放的废气的一部分来预还原预还原容器中的氧化铁。 在预还原步骤中仅使用部分废气以控制部分还原的氧化铁返回直接熔炼容器的硫的量。

    A DIRECT SMELTING PROCESS
    12.
    发明公开
    A DIRECT SMELTING PROCESS 有权
    DIREKTES SCHMELZVERFAHREN

    公开(公告)号：EP1098997A4

    公开(公告)日：2003-07-02

    申请号：EP99928910

    申请日：1999-07-01

    申请人： TECH RESOURCES PTY LTD

    发明人： MCCARTHY CAROLYN ,  DRY RODNEY JAMES ,  BURKE PETER DAMIAN

    IPC分类号： C22B5/10 ,  C21B11/00 ,  C21B13/00 ,  C21C5/56 ,  C22B5/00

    CPC分类号： C21C5/56 ,  C21B11/00 ,  C21B13/0006 ,  Y02P10/136

    摘要： A direct smelting process for producing metals from a metalliferous feed material is disclosed. The process includes forming a molten bath having a metal layer (15) and a slag layer (16) on the metal layer in a metallurgical vessel, injecting metalliferous feed material and solid carbonaceous material into the metal layer via a plurality of lances/tuyeres (11), and smelting metalliferous material to metal in the metal layer. The process also includes causing molten material to be projected as splashes, droplets, and streams into a top space above a nominal quiescent surface of the molten bath to form a transition zone (23). The process also includes injecting an oxygen-containing gas into the vessel via one or more than one lance/tuyere (13) to post-combust reaction gases released from the molten bath, whereby the ascending and thereafter descending splashes, droplets and streams of molten material in the transition zone facilitate heat transfer to the molten bath, and whereby the transition zone minimises heat loss from the vessel via the side walls in contact with the transition zone. The process is characterised by controlling the process by maintaining a high slag inventory.

    摘要翻译： 公开了用于从含金属原料生产金属的直接熔炼工艺。 该方法包括在冶金容器中的金属层上形成具有金属层（15）和渣层（16）的熔池，通过多个喷枪/风口将金属原料和固体碳质材料注入金属层 11），并将含金属材料熔炼成金属层中的金属。 该方法还包括使熔融材料以飞溅，液滴和液流的形式投射到熔池的名义静止表面上方的顶部空间中以形成过渡区（23）。 该方法还包括通过一个或多于一个的喷枪/风口（13）将含氧气体注入容器中以后燃烧从熔池中释放的反应气体，由此上升和随后下降的飞溅，液滴和熔融流 过渡区中的材料促进热传递到熔池，并且由此过渡区通过与过渡区接触的侧壁使来自容器的热损失最小化。 该过程的特点是通过维持高炉渣库存来控制过程。

    A METHOD AND AN APPARATUS FOR PRODUCING METALS AND METAL ALLOYS
    13.
    发明公开
    A METHOD AND AN APPARATUS FOR PRODUCING METALS AND METAL ALLOYS 失效
    VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG VON METALLEN UND METALLLEGIERUNGEN

    公开(公告)号：EP0950117A4

    公开(公告)日：1999-12-29

    申请号：EP97939860

    申请日：1997-09-17

    申请人： TECH RESOURCES PTY LTD

    发明人： DRY RODNEY JAMES

    IPC分类号： C21B13/14 ,  C22B1/00 ,  C22B5/12 ,  C22B5/18

    CPC分类号： C21B13/14 ,  C22B1/00 ,  C22B5/12 ,  C22B5/18 ,  Y02P10/136 ,  Y02P10/143

    摘要： A method of producing metals and metal alloys from metal oxides is disclosed. The method comprises the steps of partially pre-reducing the metal oxides to a pre-reduction degree of at least 60 % in one or more pre-reduction stages. Thereafter, the method comprises completely reducing the metal oxides and melting the metal in a smelt reduction stage. The method is further characterised by carrying out at least one of the pre-reduction stages with one or more of natural gas, reformed natural gas, and partially reformed natural gas as a source of reductant.

    摘要翻译： 公开了一种由金属氧化物生产金属和金属合金的方法。 该方法包括在一个或多个预还原阶段中将金属氧化物部分预还原至至少60％的预还原度的步骤。 此后，该方法包括完全还原金属氧化物并在熔炼还原阶段熔化金属。 该方法的进一步特征在于，利用天然气，重整天然气和部分重整的天然气中的一种或多种作为还原剂源来执行至少一个预还原阶段。

    A DIRECT SMELTING PROCESS
    17.
    发明公开
    A DIRECT SMELTING PROCESS 有权
    DIREKTSCHMELZVERFAHREN

    公开(公告)号：EP1114191A4

    公开(公告)日：2003-07-02

    申请号：EP99945759

    申请日：1999-09-03

    申请人： TECH RESOURCES PTY LTD

    发明人： MCCARTHY CAROLYN ANNE ,  DRY RODNEY JAMES ,  GOLDSWORTHY TARA ELLEN

    IPC分类号： C21B11/00 ,  C21B13/00 ,  C21B13/02 ,  C21C5/28 ,  C21C5/46 ,  C21C5/56 ,  C21C7/00 ,  C22B5/10 ,  F27B3/04 ,  F27B3/08 ,  F27B3/19 ,  F27B3/22 ,  F27B19/02 ,  F27D3/00 ,  F27D3/18 ,  F27D9/00 ,  C21B11/02 ,  C22B5/12 ,  F27B19/04

    CPC分类号： C22B5/10 ,  C21B13/0013 ,  C21B13/0026 ,  C21C5/4606 ,  C21C5/56 ,  C21C7/0037 ,  C21C7/0087 ,  F27B3/045 ,  F27B3/085 ,  F27B3/19 ,  F27B3/225 ,  F27D3/0026 ,  F27D3/18 ,  F27D9/00 ,  Y02P10/136

    摘要： A direct smelting process for producing metal from a metalliferous feed material is disclosed. The direct smelting process is a molten bath-based process in which smelting occurs predominantly in the metal layer, carrier gas/metalliferous feed material/solid carbonaceous material are injected into the metal layer via lances/tuyeres, and oxygen-containing gas is injected into the top space above the molten bath and post-combusts reaction gases released from the bath. The injection of metalliferous feed material and solid carbonaceous material causes molten material to be projected from the molten bath as splashes, droplets and streams and to form a transition zone. The process is characterised by forming a pipe of a solid material on an outlet end of at least one lance/tuyere while injecting the metalliferous feed material and the carbonaceous material through the lances/tuyeres and thereby extending the effective length of the lance/tuyere or the lances/tuyeres.

    摘要翻译： 公开了由含金属原料生产金属的直接熔炼工艺。 直接熔炼过程是基于熔融浴的过程，其中熔炼主要发生在金属层中，载气/含金属原料/固体含碳材料通过喷枪/风口注入到金属层中，并且将含氧气体注入 熔池上方的顶部空间并且后燃烧从池中释放的反应气体。 含金属原料和固体碳质材料的注入导致熔融材料以飞溅，液滴和物流的形式从熔池中投射并形成过渡区。 该方法的特征在于，在至少一个喷枪/风口的出口端形成固体材料管，同时通过喷枪/风口喷射含金属原料和含碳材料，从而延长喷管/风口的有效长度或 枪/风嘴。

    DIRECT SMELTING PROCESS FOR PRODUCING METALS FROM METAL OXIDES
    18.
    发明公开
    DIRECT SMELTING PROCESS FOR PRODUCING METALS FROM METAL OXIDES 有权
    池窑拉丝工艺用于制造由金属氧化物METALS

    公开(公告)号：EP1034311A4

    公开(公告)日：2003-06-25

    申请号：EP98943588

    申请日：1998-09-23

    申请人： TECH RESOURCES PTY LTD

    发明人： DRY RODNEY JAMES

    IPC分类号： C21B11/00 ,  C21B11/02 ,  C21B13/00 ,  C21B13/04 ,  C22B5/10

    CPC分类号： C22B5/10 ,  C21B13/0026 ,  Y02P10/136

    摘要： The HIsmelt process as disclosed in WO 96/31627 A1 (PCT/AU96/00197) consists of forming a molten bath of iron and slag, injecting metalliferous feed (oxides), solid carbonaceous material (coal and/or coke) and slag formers into the bath and smelting the metalliferous feed to metal. The process also consists of post-combusting the unoxidised reaction gases and transferring the generated heat to the bath to facilitate the smelting. In addition, a transition zone between the post-combustion zone and the quiescent metal zone is formed by injecting the charge together with a carrier gas into the bath, thus causing the metal and slag to be projected into the transition zone. The present application constitutes an improvement over the afore-mentioned application, in that lances/tuyères are inserted deep into the melt to provide oxygen for post-combustion of the unoxidised reaction gases and, in addition, to project splashes, droplets and streams of molten metal into the transition zone, which, in turn, fall back into the bath, thus effectively transferring heat from the post-combustion zone to the molten bath. The level of dissolved carbon in the bath is maintained at >/= 3 %, preferably > 4 %. The FeO level in the slag is maintained at . Primary post-combustion is set at > 40 %, preferably > 50 % or > 60 %.