Title:
【考案の名称】鉄鉱石の溶融還元における予備還元炉
Document Type and Number:
Japanese Patent JPH068997
Kind Code:
Y2
Inventors:
Tatsuro Ariyama
Susumu Isozaki
Susumu Isozaki
Application Number:
JP15897088U
Publication Date:
March 09, 1994
Filing Date:
December 08, 1988
Export Citation:
Assignee:
Nippon Steel Tube Co., Ltd.
International Classes:
C21B11/02; C21B13/00; F27B15/02; (IPC1-7): C21B13/00; C21B11/02; F27B15/02
Attorney, Agent or Firm:
Shozo Yoshihara (1 person outside)
Next Patent: 高温ワークの冷却装置