A METHOD AND APPARATUS FOR ANALYSING A MATERIAL
    83.
    发明公开
    A METHOD AND APPARATUS FOR ANALYSING A MATERIAL 有权
    VERFAHREN UND VORRICHTUNG ZUR ANALYZE EINES MATERIALS

    公开(公告)号:EP2335057A4

    公开(公告)日:2011-09-28

    申请号:EP09810939

    申请日:2009-09-08

    CPC classification number: G01N23/087 G01N33/22

    Abstract: A method of analyzing particles of a material which include a constituent is disclosed. The method comprises the steps of exposing particles of the material to x radiation having a range of x-radiation energies, detecting x-radiation intensities at two different energy levels transmitted through the particles, and determining the concentration of the constituent in particles from the detected intensities.

    Abstract translation: 公开了分析包含成分的材料的粒子的方法。 该方法包括以下步骤:将材料的颗粒暴露于具有x辐射能量范围的x辐射,检测通过颗粒传输的两个不同能级的x辐射强度,以及从检测到的颗粒中确定成分的浓度 强度。

    A GAS INJECTION LANCE
    87.
    发明公开
    A GAS INJECTION LANCE 有权
    GASSPÜLLANZE

    公开(公告)号:EP1404881A4

    公开(公告)日:2004-08-11

    申请号:EP02742539

    申请日:2002-07-08

    CPC classification number: C21C5/4613

    Abstract: A lance for injecting a pre-heated oxygen-containing gas into a vessel containing a bath of molten material is disclosed. The lance (26) includes an elongate gas flow duct (31) from which to discharge gas from the duct. The duct includes (i) inner and outer concentric carbon steel tubes (37, 39) which provide major structural support for the duct, (ii) cooling water supply and return passage means (43, 44) extending through the duct wall from the rear end to the forward end of the duct for supply and return of cooling water to the forward end of the duct, and (iii) a mechanical means in the form of lands (136) on the exterior surface of the duct adapted to hold a layer of frozen slag on the duct. The lance also includes a gas inlet (32) for introducing hot gas into the rear end of the duct. The lance also includes a tip means (36) joined to the concentric tubes at the forward end of the duct. The lance also includes a protective lining formed from a refractory or other material that is capable of protecting the duct from exposure to gas flow at 800-1400 DEG C through the duct. The lining is a non-metallic material with heat insulating properties when compared to the steel tubes. The lance also includes a swirl means (34) located in the duct for imparting swirl to gas flow through the forward end of the duct.

    Abstract translation: 公开了一种用于将预热的含氧气体注入容纳熔融材料池的容器中的喷枪。 喷枪(26)包括细长的气体流动通道(31),气体从该通道从管道排出。 该管道包括(i)为管道提供主要结构支撑的内部和外部同心碳钢管(37,39),(ii)从后部延伸穿过管道壁的冷却水供应和返回通道装置(43,44) 终止于管道的前端以供应冷却水并将其返回到管道的前端;以及(iii)管道外表面上的台面形式的机械装置(136),其适于保持层 在风管上的冷冻炉渣。 该喷枪还包括用于将热气体引入管道后端的气体入口(32)。 该喷枪还包括在管道的前端连接到同心管的尖端装置(36)。 该喷枪还包括由耐火材料或其他材料形成的保护性内衬,该保护性内衬能够保护管道免于暴露于通过管道的800-1400℃的气流中。 与钢管相比,衬里是一种具有绝热性能的非金属材料。 该喷枪还包括一个位于管道中的涡流装置(34),用于对通过管道前端的气流施加涡流。

    A DIRECT SMELTING PROCESS
    88.
    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

    Inventor: DRY RODNEY JAMES

    Abstract: 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.

    Abstract translation: 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
    89.
    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

    CPC classification number: C21C5/56 C21B11/00 C21B13/0006 Y02P10/136

    Abstract: 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.

    Abstract translation: 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
    90.
    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

    Inventor: DRY RODNEY JAMES

    Abstract: 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.

    Abstract translation: 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。

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