Process for producing molten iron and apparatus for producing molten iron

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United States of America Patent

PATENT NO 8277536
APP PUB NO 20110226092A1





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A process for producing molten iron with a combination of a moving-hearth reducing furnace and an iron bath-type melting furnace that includes charging a bedding carbonaceous material on a hearth of the moving-hearth reducing furnace and placing carbonaceous material-containing agglomerates containing a powdery iron oxide source and a powdery carbonaceous reductant on the bedding carbonaceous material; thermally reducing the carbonaceous material-containing agglomerates while moving the hearth in the moving-hearth reducing furnace to generate solid reduced iron and simultaneously thermally carbonizing the bedding carbonaceous material to generate char; hot-forming the solid reduced iron and the char into agglomerates without substantial cooling; continuously charging the agglomerates into the iron bath-type melting furnace from thereabove; and blowing oxygen-containing gas into the iron bath-type melting furnace to melt the solid reduced iron and to thereby generate molten iron.

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International Classification(s)


Inventor Name Address # of filed Patents Total Citations
Hajika, Kiminori Kobe, JP 5 24
Harada, Takao Kobe, JP 63 398
Kurakake, Toshiyuki Kobe, JP 3 23
Tanaka, Hidetoshi Shinagawa-ku, JP 72 567
Yaso, Tadashi Kobe, JP 6 27

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