公开(公告)号：PH12016501167A1

公开(公告)日：2016-07-18

申请号：PH12016501167

申请日：2016-06-16

Applicant: TECH RESOURCES PTY LTD

Inventor： JAMES DRY RODNEY ,  JACQUES PILOTE ,  ALBERTUS MEIJER HENDRIKUS KOENRAAD

IPC: F27B1/24 ,  B22D11/10 ,  C21B7/10 ,  C21B13/10 ,  C21C5/42 ,  F27B3/24 ,  F27D1/12 ,  F27D9/00

Abstract: A smelting apparatus that includes (a) a smelting vessel. (4) that is adapted to contain a bath of molten metal and slag and (b) a smelt cyclone (2) for pre-treating a metalliferous feed material positioned above and communicating directly with the smelting vessel The apparatus also includes an oft-gas duct (9) extending from the smelt, cyclone for discharging an off-gas from the smelt cyclone. The off-gas duct has an inlet section (18) that extends upwardly from the smelt cyclone and is formed to cause off-gas to undergo a substantial change of direction as it flows through the inlet section of the off-gas duct.

公开(公告)号：ZA200208389B

公开(公告)日：2004-07-02

申请号：ZA200208389

申请日：2002-10-17

Applicant: TECH RESOURCES PTY LTD

Inventor： JAMES DRY RODNEY ,  DAMIAN BURKE PETER

IPC: C22B5/00 ,  C21B11/00 ,  C21B11/02 ,  C21B13/00 ,  C21B

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.

公开(公告)号：ID22145A

公开(公告)日：1999-09-09

申请号：ID990158

申请日：1997-09-17

Applicant: TECH RESOURCES PTY LTD

Inventor： JAMES DRY RODNEY

IPC: C21B13/14 ,  C22B1/00 ,  C22B5/12 ,  C22B5/18

Abstract: A method of producing metals and metal alloys from metal oxides is disclosed. The method comprises the steps of partially pre-reducing the metal oxides to a pre-reduction degree of at least 60% in one or more pre-reduction stages. Thereafter, the method comprises completely reducing the metal oxides and melting the metal in a smelt reduction stage. The method is further characterized by carrying out at least one of the pre-reduction stages with one or more of natural gas, reformed natural gas, and partially reformed natural gas as a source of reductant.