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    A DIRECT SMELTING PROCESS
    22.
    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

    Applicant: TECH RESOURCES PTY LTD

    Inventor： MCCARTHY CAROLYN ANNE ,  DRY RODNEY JAMES ,  GOLDSWORTHY TARA ELLEN

    IPC: 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 classification number: 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

    Abstract: 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.

    Abstract translation: 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
    23.
    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

    Applicant: TECH RESOURCES PTY LTD

    Inventor： DRY RODNEY JAMES

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

    CPC classification number: C22B5/10 ,  C21B13/0026 ,  Y02P10/136

    Abstract: 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 %.

    DIRECT SMELTING PLANT AND PROCESS
    29.
    发明公开
    DIRECT SMELTING PLANT AND PROCESS 审中-公开
    VORRICHTUNG UND VERFAHREN ZUM DIREKTEN SCHMELZEN

    公开(公告)号：EP1611259A4

    公开(公告)日：2006-09-13

    申请号：EP04726385

    申请日：2004-04-08

    Applicant: TECH RESOURCES PTY LTD

    Inventor： DRY RODNEY JAMES ,  LEIGH DAVID JOHN

    IPC: C21B11/00 ,  C21B13/00 ,  C21C5/56 ,  F27B1/20 ,  F27B3/18 ,  F27B14/16 ,  F27D3/15 ,  F27D3/16 ,  F27D3/18

    CPC classification number: C21B13/0013 ,  C21C5/567 ,  F27B1/20 ,  F27D3/1518 ,  F27D3/1545 ,  F27D3/16 ,  F27D3/18 ,  F27D2003/168 ,  Y02P10/136

    Abstract: A solids feed means for a direct smelting plant is disclosed. The solids feed means includes 2 or more pairs of lances for injecting solid feed materials for a direct smelting process into a direct smelting vessel. The solids feed means also includes a main supply line and a pair of branch lines for supplying solid feed material to the lances of each pair of lances with the branch lines interconnecting the main supply line and the lances of the pair of lances. The lances are arranged around the vessel in pairs of diametrically opposed lances. At least one pair of lances is provided for injecting metalliferous feed material (such as iron-containing materials, particularly iron ore fines) and at least one of the other pairs of lances is provided for injecting solid carbonaceous material (such as coal) and optionally fluxes. The pairs of lances are arranged around the vessel so that adjacent lances are lances that are provided to inject different materials.

    Abstract translation: 公开了用于直接熔炼设备的固体进料装置。 固体进料装置包括2对或多对用于​​将直接熔炼过程的固体进料注入直接熔炼容器的喷枪。 固体供给装置还包括主供给管线和一对分支管线，用于将固体供给材料供给到每对矛杆的矛杆，分支管线连接主供给管线和一对矛杆的矛杆。 这些喷枪以成对的直径相对的喷枪的形式布置在容器周围。 提供至少一对喷枪用于喷射含金属原料（例如含铁物质，特别是铁矿石细粉），并且提供至少一对其他喷枪对以喷射固体含碳物质（例如煤）和任选地 通量。 成对的矛杆围绕容器布置，使得相邻的矛杆是提供用于注入不同材料的矛杆。

    A DIRECT SMELTING PROCESS AND APPARATUS
    30.
    发明公开
    A DIRECT SMELTING PROCESS AND APPARATUS 有权
    VERFAHREN UND VORRICHTUNG ZUR DIREKTERSCHMELZUNG

    公开(公告)号：EP1320633A4

    公开(公告)日：2005-06-08

    申请号：EP01951240

    申请日：2001-07-19

    Applicant: TECH RESOURCES PTY LTD

    Inventor： DRY RODNEY JAMES

    IPC: C21B11/08 ,  C21B13/00 ,  C21B13/10 ,  F27B3/18 ,  F27D3/18

    CPC classification number: C21B13/0026 ,  C21B13/0013 ,  Y02P10/136

    Abstract: A direct smelting process for producing iron and/or ferroalloys on a commercial scale in a metallurgical vessel is disclosed. The process includes injecting solid feed materials into a molten bath via multiple solids injection lances (27) and injecting post-combustion oxygen-containing gas into the vessel via one or more lance (26). The process is characterised by selecting the numbers of solids injection and oxygen gas injection lances and the relative positions of these lances and controlling process operating conditions so that: (i) an expanded molten bath zone (28) that has a raised region (70) forms around the oxygen gas injection region of the vessel between the region and the side walls of the vessel; (ii) splashes, droplets and streams of molten material project upwardly from the raised region and form a curtain (72) around the oxygen gas injection region between the region and the vessel side walls and wet the side walls; and (iii) a "free" space (29) forms around a lower end of the or each oxygen gas injection lance, the free space having a concentration of molten material that is lower than the molten material concentration in the expanded molten bath zone.

    Abstract translation: 公开了在冶金容器中以商业规模生产铁和/或铁合金的直接熔炼工艺。 该方法包括通过多个固体喷枪（27）将固体进料注入熔池中，并通过一个或多个喷枪（26）将后燃烧的含氧气体注入容器中。 该方法的特征在于选择固体喷射和氧气喷枪的数量以及这些喷枪的相对位置并控制工艺操作条件，使得：（i）具有凸起区域（70）的扩展熔融浴区域（28） 围绕容器的氧气注入区域在容器的区域和侧壁之间形成; （ii）熔融材料的飞溅物，液滴和熔融物流从凸起区域向上突出，并在区域和容器侧壁之间的氧气注入区域周围形成帘（72）并润湿侧壁; （iii）围绕所述或每个氧气喷枪的下端形成“自由”空间（29），所述自由空间的熔融材料浓度低于膨胀熔池区中的熔融材料浓度。

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