Method of operating blast furnace

Details Method of operating blast furnace Method of operating blast furnace

C - Chemistry, Metallurgy

21

B

53/43

C21B 5/06 (2006.01) C21B 5/00 (2006.01) C21B 7/00 (2006.01) C21B 13/02 (2006.01)

Patent

CA 1280609

Abstract of the Disclosure 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 tuyeres. 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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