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    PRESSURE CONTROL
    71.
    发明专利
    PRESSURE CONTROL 未知

    公开(公告)号：MY122509A

    公开(公告)日：2006-04-29

    申请号：MYPI20003609

    申请日：2000-08-08

    Applicant: TECH RESOURCES PTY LTD

    Inventor： BURKE PETER DAMIAN

    IPC: C21B15/00 ,  C22B5/10 ,  C21B11/08 ,  C21B13/00 ,  C21B13/04 ,  C21B13/10 ,  C21C5/28 ,  C21C5/46

    Abstract: A DIRECT SMELTING PROCESS FOR PRODUCING MOLTEN IRON AND/OR FERROALLOYS FROM A METALLIFEROUS FEED MATERIAL IS DISCLOSED. THE PROCESS IS A MOLTEN BATH BASED PROCESS THAT IS CARRIED OUT IN A DIRECT SMELTING VESSEL. THE PROCESS INCLUDES THE STEPS OF SUPPLYING METALLIFEROUS FEED MATERIAL, CARBONACEOUS MATERIAL AND FLUXES INTO THE VESSEL; SMELTING METALLIFEROUS FEED MATERIAL TO MOLTEN IRON IN THE MOLTEN BATH; AND INJECTING AN OXYGEN-CONTAINING GAS INTO THE VESSEL TO POST-COMBUST GASES GENERATED IN THE PROCESS. THE PROCESS IS CHARACTERISED BY CONTROLLING THE LEVEL OF MOLTEN METAL IN THE VESSEL BY ADJUSTING THE PRESSURE IN THE VESSEL. (FIG.1)

    73.
    发明专利
    未知

    公开(公告)号：AT304612T

    公开(公告)日：2005-09-15

    申请号：AT99928910

    申请日：1999-07-01

    Applicant: TECH RESOURCES PTY LTD

    Inventor： MCCARTHY CAROLYN ,  DRY RODNEY JAMES ,  BURKE PETER DAMIAN

    IPC: C22B5/10 ,  C21B11/00 ,  C21B13/00 ,  C21C5/56 ,  C22B5/00

    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 characterised by controlling the process by maintaining a high slag inventory.

    76.
    发明专利
    未知

    公开(公告)号：AT294876T

    公开(公告)日：2005-05-15

    申请号：AT99928909

    申请日：1999-07-01

    Applicant: TECH RESOURCES PTY LTD

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

    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 ,  C21B11/02

    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.

    Direct melting process and apparatus for making the same
    77.
    发明专利
    Direct melting process and apparatus for making the same 未知

    公开(公告)号：CZ20023440A3

    公开(公告)日：2003-09-17

    申请号：CZ20023440

    申请日：2001-04-11

    Applicant: TECH RESOURCES PTY LTD

    Inventor： DRY RODNEY JAMES ,  BURKE PETER DAMIAN

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

    Abstract: 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 40 m/s through at least one downwardly extending solids injection lance having a delivery tube of internal diameter of 40-200 mm 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 Nm 3 /s/m 2 within the molten bath at least in part by reactions of injected material in the bath. The gas now 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
    78.
    发明专利
    Direct smelting process 未知

    公开(公告)号：CZ20004920A3

    公开(公告)日：2001-10-17

    申请号：CZ20004920

    申请日：1999-07-01

    Applicant: TECH RESOURCES PTY LTD

    Inventor： MCCARTHY CAROLYN ,  DRY RODNEY JAMES ,  BURKE PETER DAMIAN

    IPC: C22B5/10 ,  C21B11/00 ,  C21B13/00 ,  C21C5/56 ,  C22B5/00

    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 characterised by controlling the process by maintaining a high slag inventory.

    Direct smelting vessel and direct smelting process
    79.
    发明专利
    Direct smelting vessel and direct smelting process 未知

    公开(公告)号：CZ20004907A3

    公开(公告)日：2001-10-17

    申请号：CZ20004907

    申请日：1999-07-01

    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 ,  C22B5/00

    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.

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