公开(公告)号：JPH07216426A

公开(公告)日：1995-08-15

申请号：JP31988094

申请日：1994-12-22

Applicant: TECH RESOURCES PTY LTD ,  TECH RESOURCES PTY LTD

Inventor： KAARU BUROTSUMAN

IPC: C21C5/00 ,  C21B11/02 ,  C21B13/00 ,  C21B13/02 ,  C21C5/28 ,  C21C5/56

公开(公告)号：JP2001280847A

公开(公告)日：2001-10-10

申请号：JP2001076457

申请日：2001-03-16

Applicant: TECH RESOURCES PTY LTD

Inventor： ANDREW CHARLES BARLOW

IPC: C22B5/10 ,  C21B13/00 ,  C21B13/10 ,  C21C5/56 ,  C22B9/02 ,  F27B3/08 ,  F27B3/18 ,  F27B3/19 ,  F27B3/20 ,  F27B3/22 ,  F27D3/14 ,  F27D3/15 ,  F27D3/18 ,  F27D7/02 ,  F27D99/00

Abstract: PROBLEM TO BE SOLVED: To provide a direct smelting device for producing a molten metal in a pure state or an alloyed state from a feed material containing the metal. SOLUTION: The starting point of the direct smelting apparatus for making the molten metal from the material containing the metal resides in a smelting vessel 11 for containing the molten metal/slug bath under a hot gas space. A solid injection lance 27 penetrating a side wall of the vessel is protruded downwards in an interior side. Heated gas for oxidation is guided into the gas space located at the lower side by a gas injection lance 26 erected vertically at a center. The above described facility is divided into four working zones disposed around the vessel at specified intervals and extending outwards from the vessel. The zone 1 is located above the vessel and includes a hot gas distribution duct 31 for sending the gas to the lance 26 and a gas exhausting duct 32. The zone 2 includes a front hearth 19 and a front hearth metal tapping trough 34. The zone 3 includes a slug cutting-extracting part 45 and a slug trough 46. The zone 4 includes a main slug discharge opening and a slug discharge trough 48. By this arrangement, the possibility of causing the transfer of the slug to interfere with the heated gas, the supply material containing the metal and the molten metal is decreased to the utmost.

公开(公告)号：JP2001165577A

公开(公告)日：2001-06-22

申请号：JP2000326672

申请日：2000-10-26

Applicant: TECH RESOURCES PTY LTD

Inventor： DRY RODNEY JAMES

IPC: C22B5/10 ,  C21B5/00 ,  C21B11/02 ,  C21B13/00 ,  C21C5/46 ,  C21C7/00 ,  F27B1/16 ,  F27B1/20 ,  F27D3/16 ,  F27D3/18 ,  F27D13/00

Abstract: PROBLEM TO BE SOLVED: To provide a vessel, producing a metal from a metal-containing charging material by a direct refining method. SOLUTION: The vessel comprises a melting bath having a metallic layer 15 as well as a slag layer 16 and is provided with the continuous space 31 of gas above the slag layer. The vessel comprises a lance/tuyere 13, extended into the vessel to inject oxygen-containing gas into the vessel above the layers of the metal and slag. The vessel comprises also a plurality of pairs of lance/ tuyere 11 to inject the metal-containing charging material and a carbon- containing charging material into the melting bath together with carrier gas and generate the flow of gas from the melting bath. One of the lance/tuyere 11 of the plurality of pairs of the lance/tuyere 11 injects an iron constituent- containing charging material mainly at a temperature higher than 200 deg.C while the other lance/tuyere injects the carbon-containing charging material mainly at the temperature lower than 200 deg.C to produce the flow of gas released from the bath and burn the same, then, transfer the reaction heat after combustion, which is useful for a heat energy for refining the metal-containing material, into the melting bath.

公开(公告)号：JP2001158906A

公开(公告)日：2001-06-12

申请号：JP2000333858

申请日：2000-09-26

Applicant: TECH RESOURCES PTY LTD

Inventor： ROBIN JOHN BATTAARAMU

IPC: C22B5/10 ,  C21B11/00 ,  C21B11/08 ,  C21B13/00 ,  C21B13/10 ,  C21C5/00 ,  C21C5/56 ,  C22B7/02

Abstract: PROBLEM TO BE SOLVED: To provide a direct smelting method and a fixed (i.e., non-rotating type) metallurgical vessel for manufacturing metal from supplying material containing the metal. SOLUTION: This method is executed by pouring the solid supplying material together with carrier gas into a fused bath through one or more of lances/ tuyeres 11 extended downward to generate gas stream from the fused bath at least at 0.30 Nm3/s/m2 flow rate in the interface between a metal layer 15 and a slag layer 16 of the fused bath (under static condition).

公开(公告)号：JPH0688143A

公开(公告)日：1994-03-29

申请号：JP4269593

申请日：1993-03-03

Applicant: TECH RESOURCES PTY LTD

Inventor： KAARU BUROTSUTSUMAN

IPC: C21B11/02 ,  C21B11/00 ,  C21B13/14 ,  C22B5/00 ,  C22B5/10

公开(公告)号：JP2001073019A

公开(公告)日：2001-03-21

申请号：JP2000242976

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: PROBLEM TO BE SOLVED: To promote the heat transfer to molten material bath and to minimize the heat loss with a transition zone by spouting molten material into a space on the molten material as splash, droplet and stream, blowing gaseous oxygen and afterburning reaction gas. SOLUTION: Iron ore, solid material containing carbon and flux are blown into molten metallic layer 15 through a lance/tuyere 11. The upward movement of splash, droplet and stream of the molten material is developed, and the stirring in the iron phase and slag layer 16 is developed, and the upward movement of splash, droplet and stream of the molten metal and the slag reaches the upper space of a vessel to form the transition zone 23. A part of molten metal is spouted to a barrel upper part 51 and a roof part 7 passing through the transition zone 23. The gaseous oxygen blown from the lance 13 enters the center range in the transition zone 23 and the reaction gases of CO and H2, are afterburned to develop the high temp. in the gas space, and the temp. of the transition zone 23 reaches about 1,450-1,550 deg.C. The molten iron is continuously discharged through a front furnace hearth 77 and the molten slag is periodically tapped from a tapping hole 61.

公开(公告)号：JP2001049329A

公开(公告)日：2001-02-20

申请号：JP2000205845

申请日：2000-06-02

Applicant: TECH RESOURCES PTY LTD

Inventor： JOHN ALEXANDER INZU

IPC: C21B13/02 ,  C21B11/00 ,  C21B11/08 ,  C21B13/00 ,  C21C5/56 ,  C21C7/04 ,  C21C7/072 ,  C21C7/076 ,  F27D17/00

Abstract: PROBLEM TO BE SOLVED: To provide a direct refining method which can be applied to such a case that the momentum of gas flow from a metal layer to the upper part is insufficient. SOLUTION: Molten bath having the metal layer 15 and a slag layer 16 thereon is formed in a metallurgical vessel, and a metal-containing supplying material and solid carbonaceous material are poured into a plurality of lance/ tuyeres 11 with carrier gas. The gas flow from the metal layer to the upper part is developed and a turbulance is generated in at least interface between the slag layer and the metal layer, and the gas is blown into the slag layer through the plurality of lance/tuyeres. The turbulent is developed in the upper range of the slag layer, and the splash, drips and flow of molten material are spread from the slag layer into top space of the vessel existing at the upper part from the slag layer. Then, a process for afterburning of reaction gas in the top-space 43 and/or the upper range of the slag layer is provided.

公开(公告)号：JP2001032006A

公开(公告)日：2001-02-06

申请号：JP2000206378

申请日：2000-07-07

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: PROBLEM TO BE SOLVED: To provide a method for starting a direct smelting method, with which iron is produced from metal-containing supplied material in a metallurgical type vessel having plural raw material spouting lances/tuyeres. SOLUTION: This method is executed with the following steps, i.e., (a) the vessel is preheated and (b) the molten iron in a vessel 77 is supplied to form the molten material. Further, (c) carboneceous material and flux are supplied into the molten material and oxygen-containing gas is spouted through the lances/tuyeres 11 and gas generated from the carbon, and the molten material is burnt to heat the molten material and slag is produced. Furthermore, (d) while continuing the supply of the carboneceous material and the flux and the spouting of the oxygen-containing gas, the metal-containing material is supplied into the vessel and the metal-containing material is smelted to produce the molten iron.

公开(公告)号：JPH093514A

公开(公告)日：1997-01-07

申请号：JP12505496

申请日：1996-05-20

Applicant: TECH RESOURCES PTY LTD

Inventor： JIYON INESU ,  GUREGORII HAADEII

IPC: C21B11/00 ,  C21B13/00

公开(公告)号：JP2001226708A

公开(公告)日：2001-08-21

申请号：JP2001018779

申请日：2001-01-26

Applicant: TECH RESOURCES PTY LTD

Inventor： MARTIN JOSEPH DAN

IPC: C22B9/10 ,  C21B11/08 ,  C21B13/10 ,  C21C5/46 ,  C21C5/52 ,  C21C5/56 ,  C21C7/00 ,  C22B5/10 ,  F27B3/00 ,  F27B3/02 ,  F27B3/18 ,  F27B3/22 ,  F27D3/00 ,  F27D3/15 ,  F27D3/16 ,  F27D3/18 ,  F27D99/00

Abstract: PROBLEM TO BE SOLVED: To provide a metallurgical lance for injecting solid particulate materials into a smelting vessel. SOLUTION: This lance 27 has a central tube 31 allowing the passage of the solid materials and an annular cooling jacket 32 enclosing the central tube. The jacket 32 includes a long-sized annular structure 41 which is formed by outer and inner tubes 42 and 43 connected by a front end connector 44. A long- sized annular structure 45 is disposed in the structure 41 in order to divide the inside of the structure 41 to the inner side annular water passage 46 and the outer side outer side annular water passage 47. A long-sized annular structure 45 has a front end piece 49 fitted into the connector 44 of the structure 41 in order to form an annular end passage 51 for interconnecting the front ends of water passages 46 and 47. Cooling water flows forward through the water passage 46 and further flows outward around the passage 51 toward the outer passage 47 then to a water outlet 53 side. The effective sectional area of the water flow passing the passage 51 is smaller than the flow sectional area of the water passage 46 and 47 in order to obtain the high volume of the water in the front end region of the cooling jacket.