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    A DIRECT SMELTING PROCESS
    242.
    发明专利
    A DIRECT SMELTING PROCESS 未知

    公开(公告)号：MY125804A

    公开(公告)日：2006-08-30

    申请号：MYPI9902751

    申请日：1999-06-30

    Applicant: TECH RESOURCES PTY LTD

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

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

    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. (FIG 1)

    A DIRECT SMELTING PROCESS
    243.
    发明专利
    A DIRECT SMELTING PROCESS 未知

    公开(公告)号：MY123336A

    公开(公告)日：2006-05-31

    申请号：MYPI9903827

    申请日：1999-09-03

    Applicant: TECH RESOURCES PTY LTD

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

    IPC: C21B11/00 ,  C21B11/02 ,  C21B13/00 ,  C21B13/02 ,  C21C5/28 ,  C21C5/46 ,  C21C5/56 ,  C21C7/00 ,  C22B5/10 ,  C22B5/12 ,  F27B3/04 ,  F27B3/08 ,  F27B3/19 ,  F27B3/22 ,  F27B19/02 ,  F27D3/00 ,  F27D3/18 ,  F27D9/00

    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 (15),CARRIER GAS/METALLIFEROUS FEED MATERIAL/SOLID CARBONACEOUS MATERIAL ARE INJECTED INTO THE METAL LAYER (15) VIA LANCES/TUYERES (11),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 (23).THE PROCESS IS CHARACTERISED BY FORMING A PIEP OF A SOLID MATERIAL ON AN OUTLET END (35) OF AT LEAST ONE LANCE/TUYERE (11) WHILE INJECTING THE METALLIFEROUS FEED MATERIAL AND THE CARBONACEOUS MATERIAL THROUGH THE LANCES/TUYERES (11) AND THEREBY EXTENDING THE EFFECTIVE LENGTH OF THE LANCE/TUYERE OR THE LANCES/TUYERES.FIG.1

    DIRECT SMELTING PLANT
    245.
    发明专利
    DIRECT SMELTING PLANT 未知

    公开(公告)号：CA2521705A1

    公开(公告)日：2004-10-21

    申请号：CA2521705

    申请日：2004-04-08

    Applicant: TECH RESOURCES PTY LTD

    Inventor： IONS PHILIP JAMES ,  DRY RODNEY JAMES

    IPC: C21B11/00 ,  C21B13/00 ,  C21C5/32 ,  C21C5/56 ,  C22B5/10 ,  C22B9/00 ,  F27B1/20 ,  F27B14/08 ,  F27D3/15 ,  F27D3/16 ,  F27D3/18

    Abstract: A direct smelting plant for producing molten metal from a metalliferous feed material is disclosed. The plant includes a fixed smelting vessel to hold a molten bath of metal and slag and a gas space above the bath. The plant also includes means for supplying solids and gas feed materials to the vessel and for tapping molten material from the vessel. The plant also includes at leas t two platforms for supporting plant operators at different heights of the vessel. The metal tapping means and the slag tapping means are located so as to be accessible by plant operators on a cast house platform and the end met al tapping means and the end slag tapping means are located to be accessible by plant operators on an end tap platform that is at a lower height than the ca st house platform.

    247.
    发明专利
    未知

    公开(公告)号：AT258995T

    公开(公告)日：2004-02-15

    申请号：AT99945759

    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

    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 characterized 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.

    Direct melting process and apparatus for making the same
    250.
    发明专利
    Direct melting process and apparatus for making the same 未知

    公开(公告)号：CZ2003168A3

    公开(公告)日：2003-10-15

    申请号：CZ2003168

    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

    Abstract: A direct smelting process for producing iron and/or ferroalloys is provided, which involves injecting feed materials into a molten bath of molten metal in a metallurgical vessel to form an expanded molten bath zone, and injecting oxygen containing gas, wherein the selection of the number of, and position of, the solids injection and oxygen gas injection lances is such that the expanded molten bath zone includes a raised region around the oxygen gas injection region, and such that splashes, droplets and streams of molten material project upwardly from the raised region, and such that a free space forms around a lower end of the oxygen gas injection lance.

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