公开(公告)号：BR0003486A

公开(公告)日：2001-03-13

申请号：BR0003486

申请日：2000-08-10

Applicant: TECH RESOURCES PTY LTD

Inventor： BURKE PETER DAMIAN

IPC: 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.

公开(公告)号：ZA200003263B

公开(公告)日：2001-01-17

申请号：ZA200003263

申请日：2000-06-29

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 ,  C21B ,  C21D

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.

公开(公告)号：CA2313622A1

公开(公告)日：2001-01-09

申请号：CA2313622

申请日：2000-07-07

Applicant: TECH RESOURCES PTY LTD

Inventor： BURKE PETER DAMIAN ,  BATES CECIL PETER

IPC: C21B13/10 ,  C21B11/08 ,  C21B13/00 ,  C21B13/04 ,  C21C5/28 ,  F27B3/22 ,  F27B3/28 ,  F27D1/12 ,  F27D1/16 ,  F27D3/18 ,  C21B11/00 ,  C22B5/02

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.