Method of supplying pulverized fuel mixture to blast furnace...

Details Method of supplying pulverized fuel mixture to blast furnace... Method of supplying pulverized fuel mixture to blast furnace...

C - Chemistry, Metallurgy

21

C

53/89

C21C 5/32 (2006.01)

Patent

CA 1181950

ABSTRACT OF THE DISCLOSURE A method of supplying a pulverized fuel mixture to blast furnace tuyeres comprises batch loading the pulverized fuel mixture into a discharging chamber which is under pres- sure, and subsequent continuous distribution thereof from this chamber, and transportation along pipe lines to the blast furnace tuyeres by means of a main gas. According to the invention, after distributing the pulverized fuel mix- ture from the discharging chamber, a supplementary gas is introduced into each pipeline, the total flow rate of said gas exceeding that of the main gas by 3 to 10 times, and the product of the total flow rate of gas within each pipeline by concentration of the fuel mixture therewithin being main- tained equal for all the tuyeres.

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