Title:
直接製錬装置および方法
Document Type and Number:
Japanese Patent JP4883833
Kind Code:
B2
Abstract:
A vessel which produces metal from a feed material by direct smelting is disclosed. The vessel contains a molten bath having a metal layer (15) and a slag layer (16) on the metal layer and a gas continuous space (31) above the slag layer. The vessel includes one or more lances/tuyeres (13) extending downwardly into the vessel and injecting an oxygen-containing gas into the vessel and injecting an oxygen-containing bas into the vessel above the metal and slag layer. The vessel includes a plurality of pairs of lances/tuyeres (11) extending downwardly and inwardly into the vessel and injecting feed material with a carrier gas into the molten bath so as to penetrate the metal layer and generate a bath-derived gas flow which carries molten material upwardly. The pairs of lances/tuyeres are spaced around the circumference of the vessel with one lance/tuyere of each pair injecting metalliferous feed material, at a temperature of at least 200° C. and the other lance/tuyere of each pair injecting carbonaceous material, at a temperature less than 200° C.
Inventors:
Rodney James Dry
Application Number:
JP2000326672A
Publication Date:
February 22, 2012
Filing Date:
October 26, 2000
Export Citation:
Assignee:
Technological Resources Proprietary Limited
International Classes:
C21B11/02; C21B5/00; C22B5/10; C21B13/00; C21C7/00; F27B1/16; F27B1/20; F27D3/16; F27D3/18; F27D13/00; C21C5/46
Foreign References:
| WO1999016911A1 |
Attorney, Agent or Firm:
Hideto Asamura
Hajime Asamura
Katsunori Shirae
Toru Mori
Hajime Asamura
Katsunori Shirae
Toru Mori