C - Chemistry – Metallurgy – 21 – B
Patent
C - Chemistry, Metallurgy
21
B
53/44, 39/62
C21B 5/00 (2006.01) C21B 13/00 (2006.01) C21B 13/14 (2006.01)
Patent
CA 1193867
- 58 - PROCESS FOR COAL-GASIFICATION AND MAKING PIG IRON AND APPARATUS THEREFORE ABSTRACT OF THE DISCLOSURE In a melting/gasifying furnace including a coke-filled layer, coal is gasified by oxygen blown through tuyeres into a hot reducing gas which is caused to ascend through the coke- filled layer so as to melt reduced iron supported on the top of the coke-filled layer. The resulting molten iron flows down through the coke-filled layer, and is collected in the lowermost region of the coke-filled layer and discharged therefrom, while the hot gas is recovered. The thus recovered gas is fed into a shaft reduction furnace to reduce iron ores, and the thus formed reduced iron is supplied into the melting/gasifying furnace. In addition to the coal, a variety of fuels mainly comprising carbon and hydrogen such as heavy oil, natural gas, etch are used for gasification. The fuel is blown through the tuyeres and/ or charged through middle openings disposed above the tuyeres.
401962
Hatano Michiharu
Miyazaki Tomio
Oki Koji
Shimoda Teruhisa
Yamaoka Hideyuki
Kirby Eades Gale Baker
Sumitomo Metal Industries Ltd.
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