Apparatus for coal-gasification and making pig iron

Details Apparatus for coal-gasification and making pig iron Apparatus for coal-gasification and making pig iron

1983-05-24

1985-03-12

Andrews, M. J.

Metallurgical apparatus

Combined or convertible

48 92, 75 38, 266144, 266156, 266218, F27B 1900

Patent

active

045040435

ABSTRACT:
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, etc. are used for gasification. The fuel is blown through the tuyeres and/or charged through middle openings disposed above the tuyeres.

REFERENCES:
patent: 3948640 (1976-04-01), Elvander et al.
patent: 4310350 (1982-01-01), Santen
patent: 4340420 (1982-07-01), Santen et al.

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