Direct smelting process and apparatus
    1.
    发明授权
    Direct smelting process and apparatus 有权
    直接冶炼工艺和设备

    公开(公告)号:US09175907B2

    公开(公告)日:2015-11-03

    申请号:US13148576

    申请日:2010-02-09

    Abstract: A process and apparatus for direct smelting metalliferous material is disclosed. The invention concentrates injection of solid feed materials comprising metalliferous material and carbonaceous material into a direct smelting vessel during the course of the process into a relatively small region within a metal layer in a molten bath in the vessel in order to generate a substantial upward movement of molten material and gas from the metal layer into a region in the vessel that is above the molten bath. In particular, the invention injects the solid feed materials with sufficient momentum and/or velocity via an opposed pair of lances that are oriented within the vessel and arranged to form overlapping plumes of injected material in the molten bath.

    Abstract translation: 公开了用于直接熔炼含金属材料的方法和装置。 本发明将包含含金属材料和含碳材料的固体进料材料在工艺过程中集中到直接熔炼容器中,进入容器中熔融浴中的金属层内的相对较小的区域,以便产生大量向上移动 熔融材料和气体从金属层进入容器中位于熔池上方的区域。 特别地,本发明通过相对的一对喷枪将具有足够动量和/或速度的固体进料材料注入到容器内,并且布置成在熔融浴中形成重叠的喷射材料的羽流。

    DIRECT SMELTING PROCESS AND APPARATUS
    3.
    发明申请
    DIRECT SMELTING PROCESS AND APPARATUS 有权
    直接冶炼工艺和设备

    公开(公告)号:US20120067171A1

    公开(公告)日:2012-03-22

    申请号:US13148576

    申请日:2010-02-09

    Abstract: A process and apparatus for direct smelting metalliferous material is disclosed. The invention concentrates injection of solid feed materials comprising metalliferous material and carbonaceous material into a direct smelting vessel during the course of the process into a relatively small region within a metal layer in a molten bath in the vessel in order to generate a substantial upward movement of molten material and gas from the metal layer into a region in the vessel that is above the molten bath. In particular, the invention injects the solid feed materials with sufficient momentum and/or velocity via an opposed pair of lances that are oriented within the vessel and arranged to form overlapping plumes of injected material in the molten bath.

    Abstract translation: 公开了用于直接熔炼含金属材料的方法和装置。 本发明将包含含金属材料和含碳材料的固体进料材料在工艺过程中集中到直接熔炼容器中,进入容器中熔融浴中的金属层内的相对较小的区域,以便产生大量向上移动 熔融材料和气体从金属层进入容器中位于熔池上方的区域。 特别地,本发明通过相对的一对喷枪将具有足够动量和/或速度的固体进料材料注入到容器内,并且布置成在熔融浴中形成重叠的喷射材料的羽流。

    Direct smelting plant
    5.
    发明授权
    Direct smelting plant 有权
    直接冶炼厂

    公开(公告)号:US07201868B2

    公开(公告)日:2007-04-10

    申请号:US10821952

    申请日:2004-04-12

    Abstract: A direct smelting plant for producing molten metal from a metalliferous feed material is disclosed. The plant includes a fixed smelting vessel to hold a molten bath of metal and slag and a gas space above the bath. The plant also includes means for supplying solids and gas feed materials to the vessel and for tapping molten material from the vessel. The plant also includes at least two platforms for supporting plant operators at different heights of the vessel. The metal tapping means and the slag tapping means are located so as to be accessible by plant operators on a cast house platform and the end metal tapping means and the end slag tapping means are located to be accessible by plant operators on an end tap platform that is at a lower height than the cast house platform.

    Abstract translation: 公开了一种用于从含金属进料生产熔融金属的直接熔炼设备。 该设备包括一个固定的冶炼容器,以容纳金属和炉渣的熔池以及浴槽上方的气体空间。 该设备还包括用于向容器供应固体和气体进料并用于从容器中排出熔融材料的装置。 该工厂还包括至少两个平台,用于支持船舶不同高度的工厂操作员。 金属攻丝装置和矿渣攻丝装置位于工厂操作员在铸造房屋平台上可接近的位置,并且终端金属出钢装置和末端矿渣攻丝装置位于工厂操作者可在一个端部水龙头平台上接近, 处于比铸房平台较低的高度。

    Direct smelting process
    6.
    发明授权
    Direct smelting process 失效
    直接冶炼工艺

    公开(公告)号:US06423115B1

    公开(公告)日:2002-07-23

    申请号:US09478750

    申请日:2000-01-06

    CPC classification number: C21B13/0026 C21B11/00 C21B13/0013 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 controlled by maintaining a high slag inventory and by reducing the heat loss from the vessel through the side walls being continuously splashed by the transition zone.

    Abstract translation: 公开了一种用于从含金属进料中生产金属的直接熔炼方法。 该方法包括在冶金容器中在金属层上形成具有金属层(15)和熔渣层(16)的熔池,通过多个喷枪/风口将含金属进料和固体含碳材料注入金属层( 11),并将含金属材料熔炼到金属层中的金属。 该过程还包括使熔融材料作为飞溅,液滴和流投射到熔融浴的标称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根或多于一根的喷枪/风口(13)将含氧气体注入到容器中,以便将从熔融浴释放的反应气体后燃烧,由此上升和随后下降的熔融液滴和液流 过渡区域中的材料促进热量传递到熔池,并且由此过渡区域最小化与过渡区域接触的侧壁从容器的热损失。 该过程通过保持高渣量库存并通过减少由过渡区域连续飞溅的侧壁的船舶的热损失来控制。

    DIRECT SMELTING PROCESS
    7.
    发明申请
    DIRECT SMELTING PROCESS 有权
    直接的冶炼工艺

    公开(公告)号:US20130180361A1

    公开(公告)日:2013-07-18

    申请号:US13823308

    申请日:2011-09-15

    Abstract: A molten bath-based direct smelting process includes controlling the process conditions in a direct smelting vessel so that molten slag in a molten bath of metal and slag in the vessel has a viscosity in a range of 0.5-5 poise in an operating temperature range for the process.

    Abstract translation: 基于熔融浴的直接熔炼方法包括控制直接熔炼容器中的工艺条件,使得在容器中的金属和熔渣的熔池中的熔渣在0.5-5泊的范围内在工作温度范围内 的过程。

    Ironmaking and Steelmaking
    8.
    发明申请
    Ironmaking and Steelmaking 有权
    炼铁和炼钢

    公开(公告)号:US20110185856A1

    公开(公告)日:2011-08-04

    申请号:US13081733

    申请日:2011-04-07

    Abstract: A steelmaking process is disclosed. The process includes producing molten steel and molten steelmaking slag in a steelmaking process, the steelmaking slag including iron units and flux units, and thereafter producing molten iron in a molten bath based direct smelting process using a substantial portion of the steelmaking slag as part of the feed material requirements for the direct smelting process. A direct smelting process is also disclosed. The process includes pre-treating ferrous material including steelmaking slag and thereafter direct smelting molten iron using the pretreated ferrous material as part of the feed material for the process.

    Abstract translation: 公开了炼钢工艺。 该方法包括在炼钢过程中生产钢水和炼钢渣,钢铁炉渣包括铁单元和助熔剂单元,然后在基于熔池的直接熔炼过程中生产铁水,其中使用大部分钢铁渣作为 饲料要求直接冶炼过程。 还公开了直接熔炼过程。 该方法包括预处理含铁材料,包括炼钢渣,此后使用预处理的铁质材料直接熔炼铁水作为该方法的原料的一部分。

    Ironmaking and steelmaking
    9.
    发明授权
    Ironmaking and steelmaking 有权
    炼铁和炼钢

    公开(公告)号:US07935172B2

    公开(公告)日:2011-05-03

    申请号:US10587469

    申请日:2005-01-31

    Abstract: A steelmaking process is disclosed. The process includes producing molten steel and molten steelmaking slag in a steelmaking process, the steelmaking slag including iron units and flux units, and thereafter producing molten iron in a molten bath based direct smelting process using a substantial portion of the steelmaking slag as part of the feed material requirements for the direct smelting process. A direct smelting process is also disclosed. The process includes pre-treating ferrous material including steelmaking slag and thereafter direct smelting molten iron using the pretreated ferrous material as part of the feed material for the process.

    Abstract translation: 公开了炼钢工艺。 该方法包括在炼钢过程中生产钢水和炼钢渣,钢铁炉渣包括铁单元和助熔剂单元,然后在基于熔池的直接熔炼过程中生产铁水,其中使用大部分钢铁渣作为 饲料要求直接冶炼过程。 还公开了直接熔炼过程。 该方法包括预处理含铁材料,包括炼钢渣,此后使用预处理的铁质材料直接熔炼铁水作为该方法的原料的一部分。

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