Title:
【発明の名称】直接製錬法
Document Type and Number:
Japanese Patent JP2002524656
Kind Code:
A
Abstract:
A direct smelting process for producing metal from a metalliferous feed material is disclosed. The direct smelting process is a molten bath-based process in which smelting occurs predominantly in the metal layer, carrier gas/metalliferous feed material/solid carbonaceous material are injected into the metal layer via lances/tuyeres, and oxygen-containing gas is injected into the top space above the molten bath and post-combusts reaction gases released from the bath. The injection of metalliferous feed material and solid carbonaceous material causes molten material to be projected from the molten bath as splashes, droplets and streams and to form a transition zone. The process is characterized by forming a pipe of a solid material on an outlet end of at least one lance/tuyere while injecting the metalliferous feed material and the carbonaceous material through the lances/tuyeres and thereby extending the effective length of the lance/tuyere or the lances/tuyeres.
Inventors:
McCarthy, Carolyn, Anne
Dry, Rodney, James
Goldsworthy, Tara, Ellen
Dry, Rodney, James
Goldsworthy, Tara, Ellen
Application Number:
JP2000569025A
Publication Date:
August 06, 2002
Filing Date:
September 03, 1999
Export Citation:
Assignee:
Technological Resources Proprietary Limited
International Classes:
C21B11/00; C21B13/00; C21B13/02; C21C5/28; C21C5/46; C21C5/56; C21C7/00; C22B5/10; F27B3/08; F27B3/22; F27B19/02; F27D3/18; F27B3/04; F27B3/19; F27D3/00; F27D9/00; (IPC1-7): C21B11/00; C21B13/02; C21C5/28; C21C5/46; C22B5/10
Attorney, Agent or Firm:
Akira Asamura (3 outside)