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    A DIRECT SMELTING PROCESS AND APPARATUS
    3.
    发明公开
    A DIRECT SMELTING PROCESS AND APPARATUS 有权
    方法DIREKTERSCHMELZUNG及相关设备

    公开(公告)号：EP1276912A4

    公开(公告)日：2004-11-17

    申请号：EP01921038

    申请日：2001-04-11

    申请人： TECH RESOURCES PTY LTD

    发明人： DRY RODNEY JAMES ,  BURKE PETER DAMIAN

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

    CPC分类号： C21B11/00 ,  C21B13/0026 ,  Y02P10/136

    摘要： A molten-bath based direct smelting process and apparatus for producing metals from a ferrous material is disclosed. The process includes injecting feed materials being solid material and carrier gas into a molten bath at a velocity of at least 40m/s through at least one downwardly extending solids injection lance having a delivery tube of internal diameter of 40-200mm that is located so that a central axis of an outlet end of the lance is at an angle of 20 to 90 degrees to a horizontal axis. The feed materials injection generates a superficial gas flow of at least 0.04 Nm3/s/m2 within the molten bath at least in part by reactions of injected material in the bath. The gas flow causes molten material to be projected upwardly as splashes, droplets and streams and form an expanded molten bath zone, with the gas flow and the upwardly projected molten material causing substantial movement of material within the molten bath and strong mixing of the molten bath. The feed materials are selected so that, in an overall sense, the reactions of the feed materials in the molten bath are endothermic. The process also includes injecting an oxygen-containing gas into an upper region of the vessel via at least one oxygen gas injection lance and post-combusting combustible gases released from the molten bath.

    DIRECT SMELTING PROCESS
    4.
    发明公开
    DIRECT SMELTING PROCESS 有权
    DIREKTSCHMELZUNGSVERFAHREN

    公开(公告)号：EP2673387A4

    公开(公告)日：2017-06-21

    申请号：EP12744399

    申请日：2012-02-09

    申请人： TECH RESOURCES PTY LTD

    发明人： DRY RODNEY JAMES

    IPC分类号： C21B13/00 ,  C21C5/56 ,  C21C7/00 ,  C22B5/00 ,  F27B3/02 ,  F27B3/22 ,  F27D3/18

    CPC分类号： C22B5/00 ,  C21B13/0006 ,  C21B13/0013 ,  C21B13/0026 ,  C21C5/56 ,  C21C7/0037 ,  F27B3/02 ,  F27B3/225 ,  F27D3/18 ,  Y02P10/136

    摘要： A molten bath-based process for direct smelting metalliferous material and producing molten metal in a direct smelting vessel that contains a molten bath that has a metal layer that is at least 900 mm deep. The process includes selecting operating parameters of the process so that feed material (solid material and carrier gas) is injected from above the metal layer into the metal layer via at least one solids injection lance with sufficient momentum to penetrate to a depth of at least 100 mm below a nominal quiescent surface of the metal layer to cause upward movement of molten material and gas from the metal layer.

    摘要翻译： 一种熔池方法，用于直接熔炼含金属材料并在直接熔炼容器中生产熔融金属，该熔炼容器包含熔池，该熔池具有至少900mm深的金属层。 该方法包括选择工艺的操作参数，使得从金属层上方通过至少一个固体喷射枪将进料材料（固体材料和载气）注入金属层中，所述固体喷射枪具有足够的动量以穿透至少100 在金属层的名义静止表面以下，以引起熔融材料和气体从金属层向上移动。

    DUPLEX PROCEDURE FOR THE PRODUCTION OF METALS AND METAL ALLOYS FROM OXIDIC METAL ORES
    7.
    发明公开
    DUPLEX PROCEDURE FOR THE PRODUCTION OF METALS AND METAL ALLOYS FROM OXIDIC METAL ORES 失效
    双重工艺用于生产金属和金属合金FROM氧化金属矿

    公开(公告)号：EP0862657A4

    公开(公告)日：1999-06-02

    申请号：EP96934219

    申请日：1996-11-04

    申请人： TECH RESOURCES PTY LTD

    发明人： INNES JOHN ALEXANDER ,  DRY RODNEY JAMES

    IPC分类号： C22B1/00 ,  C21B5/00 ,  C21B7/00 ,  C21B7/14 ,  C21B7/16 ,  C21B11/00 ,  C21B11/02 ,  C21B13/00 ,  C21B13/02 ,  C21B13/14 ,  C22B5/10 ,  C22B5/14 ,  C22B5/18 ,  F27B1/10 ,  F27B1/16 ,  F27B1/20 ,  F27B1/21 ,  F27B15/08 ,  F27B15/09 ,  F27B19/04

    CPC分类号： F27B19/04 ,  C21B13/143 ,  C21B2100/60 ,  C21B2100/64 ,  Y02P10/136

    摘要： The production of highly metallised feed, an intermediate product produced solely by gaseous reductants in two stage reduction processes of that kind, encounters sticking problems, which interfere with continuous processing and productivity. This problem has been overcome by exploiting a high volatile carbonaceous material, such as coal, as the reducing agent for the (partially reduced) oxide ore starting material in the solid state prereduction stage of a duplex process, in which the final stage consists of smelting, to produce the final metal (alloy). Intermediate products of the first stage are char from the coal, which avoids the sticking problem, partially reduced ore and CO and H2, which participate in the prereduction. The process has particular application to iron ores, such as haematite and magnetite and similar derivatives, namely, chromite and oxidic nickel ores. The process may be extended to a triplex, which includes drying, preheating and partial reduction in the first stage, followed by further partial reduction and finally the smelting step. Plant for the process may consist of a shaft furnace or fluidised bed for the prereduction sequence, preferably the latter. For the triplex process, two associated fluidised beds (3, 5) are preferred. Any suitable furnace (7) may be used for smelting, as long as it is equipped for the injection of partially reduced ore, char and fluxes, hot air lancing, off gas and the tapping of molten metal and slag. The final stage of solid state reduction takes place at a temperature of at least 550 DEG C, preferably 750-900 DEG C. At least 50 % of metallisation is essential for satisfactory processing, preferably at least 80 %.