Direct smelting plant
    141.
    发明专利

    公开(公告)号:AU2007219729B2

    公开(公告)日:2011-03-24

    申请号:AU2007219729

    申请日:2007-03-01

    Abstract: A direct smelting plant for producing molten metal from a metalliferous feed material using a molten bath based direct smelting process is disclosed. The plant includes a gas delivery duct assembly extending from a gas supply location away from the vessel to deliver oxygen-containing gas to gas injection lances extending into a direct smelting vessel. The gas delivery duct assembly includes a single gas delivery main connected to the gas injection lances to supply oxygen-containing gas to the gas injection lances. The gas delivery main is located at a height above a lower half of the vessel.

    DIRECT SMELTING PLANT
    145.
    发明专利

    公开(公告)号:MY139692A

    公开(公告)日:2009-10-30

    申请号:MYPI20041277

    申请日:2004-04-08

    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 LEAST 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 METAL 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 CAST HOUSE PLATFORM.

    A DIRECT SMELTING PROCESS AND APPARATUS

    公开(公告)号:CA2338592C

    公开(公告)日:2009-09-08

    申请号:CA2338592

    申请日:1999-07-26

    Inventor: DRY RODNEY JAMES

    Abstract: A process for direct smelting a metalliferous feed material is disclosed. Char and fuel gas are produced by pre-treating coal with an oxygen-containing gas. The fuel gas is used to heat an oxygen-containing gas and/or to produce an oxygen-containing gas in an oxygen plant. Metalliferous feed material, char, and the oxygen-containing gas are injected into a direct smelting vessel, and the metalliferous feed material is smelted to molten metal in the direct smelting vessel using the char as a source of energy and as a reductant.

    147.
    发明专利
    未知

    公开(公告)号:DE602004021588D1

    公开(公告)日:2009-07-30

    申请号:DE602004021588

    申请日:2004-04-08

    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 least 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 metal 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 cast house platform.

    DIRECT SMELTING PLANT
    148.
    发明专利

    公开(公告)号:CA2642711A1

    公开(公告)日:2007-09-07

    申请号:CA2642711

    申请日:2007-03-01

    Abstract: A direct smelting plant for producing molten metal from a metalliferous feed material using a molten bath based direct smelting process is disclosed. The plant includes a gas delivery duct assembly extending from a gas supply location away from the vessel to deliver oxygen-containing gas to gas injection lances extending into a direct smelting vessel. The gas delivery duct assembly includes a single gas delivery main connected to the gas injection lances to supply oxygen-containing gas to the gas injection lances. The gas delivery main is located at a height above a lower half of the vessel.

    149.
    发明专利
    未知

    公开(公告)号:AT356887T

    公开(公告)日:2007-04-15

    申请号:AT01966825

    申请日:2001-09-13

    Abstract: A direct smelting process for producing iron and/or ferroalloys is provided, which involves forming a molten bath in a metallurgical vessel, supplying feed materials, injecting oxygen containing gas, generating upward movement of the molten material from the molten bath, wherein the oxygen-containing gas is injected by three or more lances, and entraining into the jets of oxygen containing gas a volume of top space gas that is 2-6 times the volume of the injected gas.

    A PROCESS OF PRODUCING MOLTEN METALS

    公开(公告)号:MY127877A

    公开(公告)日:2006-12-29

    申请号:MYPI9804405

    申请日:1998-09-25

    Inventor: DRY RODNEY JAMES

    Abstract: A MOLTEN BATH-BASED DIRECT SMELTING PROCESS FOR PRODUCING METALS FROM METAL OXIDES (INCLUDING PARTIALLY REDUCED METAL OXIDES) IS DISCLOSED. THE PROCESS INCLUDES CAUSING UPWARD MOVEMENT OF SPLASHES, DROPLETS, AND STREAMS OF MOLTEN MATERIAL FROM A METAL LAYER (15) OF THE MOLTEN BATH WHICH : (i) PROMOTES STRONG MIXING OF METAL IN A SLAG LAYER (16) OF THE MOLTEN BATH SO THAT THE SLAG LAYER (16) IS MAINTAINED IN A STRONGLY REDUCING CONDITION LEADING TO FEO LEVELS BELOW 8 WT% BASED ON THE TOTAL WEIGHT OF THE SLAG IN THE SLAG LAYER (16) ; AND (ii) EXTENDS INTO A SPACE ABOVE A NOMINAL QUIESCENT SURFACE OF THE MOLTEN BATH TO FORM A TRANSITION ZONE (23).(FIG 1)

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