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    Direct smelting vessel and direct smelting process.
    41.
    发明专利
    Direct smelting vessel and direct smelting process. 未知

    公开(公告)号：ZA200006408B

    公开(公告)日：2002-05-10

    申请号：ZA200006408

    申请日：2000-11-08

    Applicant: TECH RESOURCES PTY LTD

    Inventor： LEIGH DAVID JOHN ,  BURKE PETER DAMIAN ,  BATES CECIL PETER ,  WEBER RALPH GOTTFRIED

    IPC: C22B5/10 ,  C21B11/00 ,  C21B11/08 ,  C21B13/00 ,  C21B13/10 ,  C21C5/56 ,  F27B3/08 ,  F27B3/19 ,  F27B3/22 ,  F27D1/12 ,  F27D3/15 ,  F27D3/18 ,  C21B ,  C22B

    Abstract: A vessel which produces metal from a metalliferous feed material by a direct smelting process is disclosed. The vessel contains a molten bath having a metal layer (15) and a slag layer (16) on the metal layer and has a gas continuous space (31) above the slag layer. The vessel includes a hearth formed of refractory material having a base (3) and sides (55) in contact with the molten metal and side walls (5) which extend upwardly from the sides (55) of the hearth and are in contact with the slag layer and the gas continuous space. The side walls that contact the gas continuous space include water cooled panels (57) and a layer of slag on the panels. The vessel also includes one or more than one lance/tuyere (13) extending downwardly into the vessel and injecting an oxygen-containing gas into the vessel above the metal layer and a plurality of lances/tuyeres (11) injecting at least part of the metalliferous feed material and a carbonaceous material with a carrier gas into the molten bath so as to penetrate the metal layer.

    Start-up procedure for direct smelting process
    43.
    发明专利
    Start-up procedure for direct smelting process 未知

    公开(公告)号：CZ20002522A3

    公开(公告)日：2001-07-11

    申请号：CZ20002522

    申请日：2000-07-04

    Applicant: TECH RESOURCES PTY LTD

    Inventor： BATES CECIL PETER ,  BURKE PETER DAMIAN

    IPC: C21B13/10 ,  C21B11/08 ,  C21B13/00 ,  C21B13/04 ,  C21C5/28 ,  F27B3/22 ,  F27B3/28 ,  F27D1/12 ,  F27D1/16 ,  F27D3/18

    Abstract: A procedure for starting up a direct smelting process for producing iron from a metalliferous feed material in a metallurgical vessel is disclosed. The vessel is of the type which includes a plurality of feed material injection lances/tuyeres (11, 13). The start-up procedure includes the steps of: (a) preheating the vessel; (b) supplying a charge of molten iron to the vessel and forming a molten bath in the vessel, (c) supplying carbonaceous material and flux to the molten bath and injecting oxygen-containing gas through one or more than one feed material injection lance/tuyere and combusting carbon and bath derived gas (if present) and thereby heating the molten bath and generating slag; and (d) suppling metalliferous feed material to the vessel while continuing supply of carbonaceous material and flux and injection of oxygen-containing gas and smelting metalliferous feed material and producing molten iron and thereby completing the start-up procedure.

    49.
    发明专利
    未知

    公开(公告)号：BR9710304A

    公开(公告)日：1999-08-17

    申请号：BR9710304

    申请日：1997-07-11

    Applicant: TECH RESOURCES PTY LTD

    Inventor： DRY RODNEY J ,  BATES CECIL PETER ,  WEBER RALPH M

    IPC: F27D3/18 ,  C21C5/32 ,  C21C5/46 ,  C21C5/48 ,  F27D3/16 ,  F27D9/00

    Abstract: A lance (5) for injecting a feed material, preferably a solid feed material, into a metallurgical vessel, is disclosed. The lance comprises: an inlet (21) for introducing the feed material into the lance; an outlet (23) at a forward end of the lance (5) for discharging the feed material from the lance (5); a hollow elongate member (25) that defines a passageway (33) for the feed material between the inlet (21) and the outlet (23) and is adapted to be cooled by a first cooling fluid; and an outer jacket (35) positioned around a section of the length of the member (25) and is adapted to be cooled by a second cooling fluid.

    A method of producing iron.
    50.
    发明专利
    A method of producing iron. 未知

    公开(公告)号：ZA9711351B

    公开(公告)日：1998-06-23

    申请号：ZA9711351

    申请日：1997-12-18

    Applicant: TECH RESOURCES PTY LTD

    Inventor： BATES CECIL PETER

    IPC: C21B15/00 ,  C21B13/00 ,  C21C5/56 ,  C22B

    Abstract: A method of producing iron from iron carbide is disclosed. Solid iron carbide is injected into a molten bath comprising molten iron and slag and dissolves in the molten bath. An oxygen-containing gas is injected into a gas space above the surface of the molten bath to cause combustion of at least a portion of combustible material in the gas space. In addition splashes and/or droplets of molten iron and/or slag are ejected upwardly from the molten bath into the gas space above the quiescent bath surface to form a transition zone. The transition zone is a region in which heat generated by combustion of combustible material is transferred to the splashes and/or droplets of molten iron and/or slag and thereafter is transferred to the molten bath when the splashes and/or droplets of molten iron and/or slag return to the molten bath.

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