Title:
ガス吹き込みランス
Document Type and Number:
Japanese Patent JP4309257
Kind Code:
B2
Abstract:
A gas injection lance and an apparatus employing the lance for producing ferrous metal are provided. The lance has an elongated flow duct made of inner and outer concentric carbon steel tubes, a cooling water supply and return, and exterior surface which is designed to hold a frozen layer of slag on the duct, a gas inlet at a rear end of the duct, a tip joining the concentric tubes at the forward end of the duct, a non-metallic or refractory lining for the duct, and swirl-imparting member or members located in the duct for imparting swirl in the gas flow through the forward end of the duct.
Inventors:
Dan, Martin, Joseph
Hardy, Gregory, John
Hardy, Gregory, John
Application Number:
JP2003512450A
Publication Date:
August 05, 2009
Filing Date:
July 08, 2002
Export Citation:
Assignee:
Technological Resources Proprietary Limited
International Classes:
C21C5/46; C21B13/02; C21C5/48; C21C7/072
Domestic Patent References:
| JP2003450U | ||||
| JP5500555A | ||||
| JP2000514505A | ||||
| JP2003535305A |
Attorney, Agent or Firm:
Hideto Asamura
Hajime Asamura
Yutaka Yoshida
Yukio Iwamoto
Hajime Asamura
Yutaka Yoshida
Yukio Iwamoto