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公开(公告)号：DE60031206D1
公开(公告)日：2006-11-23
申请号：DE60031206
申请日：2000-07-04
Applicant: TECH RESOURCES PTY LTD
Inventor： BATES CECIL PETER , BURKE PETER DAMIAN
IPC: C21B13/00 , C21B13/10 , C21B11/08 , 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.
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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
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)
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公开(公告)号：DE60014802T2
公开(公告)日：2005-10-13
申请号：DE60014802
申请日：2000-08-08
Applicant: TECH RESOURCES PTY LTD
Inventor： BURKE PETER DAMIAN
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.
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公开(公告)号：DE60014802D1
公开(公告)日：2004-11-18
申请号：DE60014802
申请日：2000-08-08
Applicant: TECH RESOURCES PTY LTD
Inventor： BURKE PETER DAMIAN
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.
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公开(公告)号：AT279538T
公开(公告)日：2004-10-15
申请号：AT00117021
申请日：2000-08-08
Applicant: TECH RESOURCES PTY LTD
Inventor： BURKE PETER DAMIAN
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.
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Patent Agency Ranking
公开(公告)号：AU768952B2
公开(公告)日：2004-01-08
申请号：AU4272500
申请日：2000-06-28
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.
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公开(公告)号：AU766100B2
公开(公告)日：2003-10-09
申请号：AU4592799
申请日：1999-07-01
Applicant: TECH RESOURCES PTY LTD
Inventor： LEIGH DAVID JOHN , BURKE PETER DAMIAN , BATES CECIL PETER
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公开(公告)号：AU4815601A
公开(公告)日：2001-11-07
申请号：AU4815601
申请日：2001-04-11
Applicant: TECH RESOURCES PTY LTD
Inventor： DRY RODNEY JAMES , BURKE PETER DAMIAN
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.
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公开(公告)号：CA2323272A1
公开(公告)日：2001-04-15
申请号：CA2323272
申请日：2000-10-13
Applicant: TECH RESOURCES PTY LTD
Inventor： BURKE PETER DAMIAN
IPC: C21B11/08 , C21B5/00 , C21C5/56 , F27D3/16 , F27D3/18 , F27D7/02 , F27D7/06 , C21B13/00 , C21B11/00
Abstract: A procedure for holding production of molten metal in a direct smelting process is disclosed. In situations where it is necessary to hold metal production and there is a continuing available supply of oxygen-containing gas and solid carbonaceous material, the hold procedure includes the steps of stopping supply of metalliferous feed material, continuing to inject oxygen-containing has and solid carbonaceous material into the vessel and generating heat within the vessel to maintain the temperature of the molten bath above a temperature at which the bath freezer. In situations where it is necessary to hold production and there is a continuing supply of oxygen-containing gas but no available solid carbonaceous material, the hold procedure includes the steps of stopping supply of metalliferous feed material and injecting oxygen-containing gas and gaseous or liquid combustible material into the vessel and generating heat within the vessel to maintain the bath temperature.
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公开(公告)号：ZA200004008B
公开(公告)日：2001-03-28
申请号：ZA200004008
申请日：2000-08-07
Applicant: TECH RESOURCES PTY LTD
Inventor： BURKE PETER DAMIAN
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.
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