发明名称 Oxygen blast furnace for direct steel making
摘要 A method and apparatus for direct steel making in a blast furnace wherein a continuous flow of process ingredients including iron ore is directed in a descending tortuous path through reduction and combustion zones which are maintained in the shaft of a blast furnace.
申请公布号 US4670049(A) 申请公布日期 1987.06.02
申请号 US19850810555 申请日期 1985.12.19
申请人 KELMAR, JOHN J. 发明人 KELMAR, JOHN J.
分类号 C21B5/00;C21B5/02 主分类号 C21B5/00
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