发明名称 |
Method of operating a blast furnace |
摘要 |
According to a method of operating a blast furnace, pure oxygen, pulverized coal, and a temperature control gas which substantially does not contain nitrogen are blown from tuyères. A preheating gas which substantially does not contain nitrogen is blown from an intermediate shaft level. A blast furnace gas which substantially does not contain nitrogen can be produced from a furnace top.
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申请公布号 |
US4917727(A) |
申请公布日期 |
1990.04.17 |
申请号 |
US19880279252 |
申请日期 |
1988.11.22 |
申请人 |
NIPPON KOKAN KABUSHIKI KAISHA |
发明人 |
SAITO, HIROSHI;OONO, YOTARO;HOTTA, HIROHISA;MATSUURA, MASAHIRO |
分类号 |
C21B5/00;C21B5/06 |
主分类号 |
C21B5/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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