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    A PROCESS AND AN APPARATUS FOR PRODUCING METALS AND METAL ALLOYS
    71.
    发明公开
    A PROCESS AND AN APPARATUS FOR PRODUCING METALS AND METAL ALLOYS 有权
    方法和设备生产金属和金属合金

    公开(公告)号：EP1114192A4

    公开(公告)日：2003-06-25

    申请号：EP99944167

    申请日：1999-08-30

    Applicant: TECH RESOURCES PTY LTD

    Inventor： BATES CECIL PETER

    IPC: C21B11/10 ,  C21B13/00 ,  C21B13/10 ,  C21B13/12 ,  C21C5/52 ,  F27B3/08 ,  F27B3/18 ,  F27B3/22 ,  F27B14/06 ,  C21B11/00 ,  C22B5/10 ,  C22B5/12 ,  F27B19/02 ,  F27B19/04

    CPC classification number: C21B13/10 ,  C21B13/0006 ,  C21C5/5217 ,  F27B3/183 ,  Y02P10/136 ,  Y02P10/216

    Abstract: A process for producing metals from a metalliferous feed material in an electric furnace is disclosed. The process includes the steps of forming a molten bath having a metal layer and a slag layer on the metal layer in the furnace and supplying electrical energy to the furnace and converting the electrical energy to thermal energy and thereby contributing to the heat input requirements of the process. The process also includes injecting a carrier gas and a solid carbonaceous material into the molten bath via one or more than one solids injection lance/tuyere and causing molten material to be projected from the molten bath as splashes, droplets, and streams into a space above a nominal quiescent surface of the molten bath and forming a transition zone. The process also includes injecting an oxygen-containing gas into the furnace via one or more than one oxygen-containing gas injection lance/tuyere and post-combusting reaction gases released from the molten bath and thereby further contributing to the heat requirements of the process. In this process the ascending and thereafter descending splashes, droplets, and streams of molten material in the transition zone facilitate heat transfer to the molten bath and the transition zone minimises heat loss from the furnace via the side walls in contact with the transition zone.

    A NON-MECHANICAL VALVE
    72.
    发明公开
    A NON-MECHANICAL VALVE 失效
    NICHTMACHANISCHES VENTIL

    公开(公告)号：EP0819092A4

    公开(公告)日：2001-01-24

    申请号：EP96907948

    申请日：1996-04-04

    Applicant: TECH RESOURCES PTY LTD

    Inventor： HARDIE GREGORY JOHN ,  DRY ROD JAMES ,  BEEBY COLIN JOHN

    IPC: B01J8/00 ,  B65G53/16 ,  B65G53/52 ,  F16L11/12 ,  F17D1/20 ,  F23C10/18

    CPC classification number: B01J8/0025 ,  B01J8/003 ,  B65G53/16 ,  F23C10/18

    Abstract: A non-mechanical valve (3) for controlling the flow of fluidisable solids is disclosed. The valve (3) comprises a pipe having an upstream leg (5) with a solids inlet (13) at an upper end, a downstream leg (7) with a solids outlet (14) at an upper end, and a base section (9) interconnecting lower ends of the legs (5, 7). The valve (3) further comprises a means for introducing aeration gas into each of the legs (5, 7) to maintain fluidised flow of solids through the valve (3) and a means for adjusting the flow of aeration gas to the legs (5, 7) to control the solids flow through the valve (3).

    Abstract translation: 公开了用于控制可流化固体流动的非机械阀（3）。 阀（3）包括具有在上端具有固体入口（13）的上游腿（5）的管，在上端具有固体出口（14）的下游腿（7）和基部（ 9）互连腿（5,7）的下端。 阀（3）还包括用于将充气气体引入每个支腿（5,7）中以保持通过阀（3）的固体的流动流动的装置以及用于调节通向支腿（5,7）的充气气体的流动的装置 ，7）以控制通过阀（3）的固体流动。

    REDUCING IRON OXIDES IN ROTARY HEARTH FURNACE
    73.
    发明公开
    REDUCING IRON OXIDES IN ROTARY HEARTH FURNACE 失效
    减少Von EisenoxyD IM DREHHERDOFEN

    公开(公告)号：EP0843740A4

    公开(公告)日：1998-10-07

    申请号：EP96925608

    申请日：1996-08-07

    Applicant: TECH RESOURCES PTY LTD

    Inventor： INNES JOHN ALEXANDER

    IPC: C22B1/16 ,  C21B13/08 ,  C21B13/10 ,  C22B1/14 ,  C22B1/216 ,  C22B1/24 ,  C22B5/10

    CPC classification number: C22B1/2406 ,  C21B13/08 ,  C21B13/105 ,  C22B5/10 ,  Y10S75/961

    Abstract: A process for at least partially reducing iron oxides comprises forming a bed of reactants on a hearth of a rotary hearth furnace, the reactants comprising (a) mixture of iron ore fines and particulate carbonaceous material and/or (b) micro-agglomerates of iron ore fines and particulate carbonaceous material. The mixture and/or the micro-agglomerates are heated in the rotary hearth furnace to at least reduce the iron oxides. The "micro-agglomerates" are agglomerates that are less than 1400 microns (and preferably more than 500 microns) in diameter. The at least partially reduced product is preferably used in the production of metallic iron. An apparatus for at least partially reducing iron oxides is also claimed. The process permits operation of the rotary hearth furnace without requiring pelletisation of iron oxide fines and coal.

    Abstract translation: 一种至少部分还原铁氧化物的方法包括在旋转炉底炉的炉膛上形成反应物床，反应物包括（a）铁矿粉和颗粒状含碳材料的混合物和/或（b）铁的微团聚体 矿石细粒和颗粒状碳质材料。 在转底炉中加热混合物和/或微团聚体以至少还原氧化铁。 “微团聚体”是直径小于1400微米（并且优选大于500微米）的团聚体。 至少部分还原的产物优选用于生产金属铁。 本发明还要求保护用于至少部分还原氧化铁的设备。 该方法允许旋转炉底炉的操作，而不需要氧化铁细粉和煤的造粒。

    A REACTOR.
    75.
    发明公开
    A REACTOR. 失效
    电抗器。

    公开(公告)号：EP0606432A4

    公开(公告)日：1994-11-30

    申请号：EP93915520

    申请日：1993-07-09

    Applicant: TECH RESOURCES PTY LTD

    Inventor： BATTERHAM ROBIN JOHN ,  HOFFMANN WARWICK ARTHUR ,  CONOCHIE DAVID STEWART

    IPC: B01F3/04 ,  B01F5/04 ,  B01F15/02 ,  B01J8/18 ,  B01J10/00 ,  B01J19/18 ,  C02F3/14

    CPC classification number: B01J19/1875 ,  B01F3/0451 ,  B01F3/04609 ,  B01F5/0413 ,  B01F5/0428 ,  B01F5/0498 ,  B01F15/0201 ,  B01F2003/04865 ,  B01J8/1854 ,  Y10S261/75

    Abstract: A reactor for introducing a gas into a fluid comprises a mixing tank (12, 43) for the fluid and a partition means (13, 45) for dividing the tank into at least two chambers (21, 89) and (23, 91). The reactor further comprises a first pump means (14, 47) located in one of the chambers for circulating the fluid downwards in one chamber and then upwards in the other chamber and an aerator assembly (29, 49) for aerating a sidestream of the fluid and introducing the aerated fluid into the tank for mixing the aerated fluid with the circulating fluid in the tank. The aerator assembly (29, 49) comprises a bank of venturi aerators (38, 57) each having an aerator inlet; an aerator outlet; and a constriction intermediate the aerator inlet and the aerator outlet for creating a region of reduced pressure in the fluid, the constriction being elongate in a section transverse to the direction of flow of the fluid through the constriction; and a means for introducing the gas into the constriction to aerate the fluid.

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