Method for operating a blast furnace

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United States of America Patent

PATENT NO 9410218
APP PUB NO 20140131929A1
SERIAL NO

14131592

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Abstract

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A method of operating a blast furnace comprising two or more lances that inject reducing agents from a tuyere including injecting a solid reducing agent and a flammable reducing agent from different lances; and arranging a position of an end of the lance that injects the flammable reducing agent closer to a near side in a injecting direction by more than 0 to 50 mm than a position of an end of the lance that injects the solid reducing agent.

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Patent Owner(s)

Patent OwnerAddress
JFE STEEL CORPORATION2-3 UCHISAIWAI-CHO 2-CHOME CHIYODA-KU TOKYO 1000011

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fujiwara, Daiki Fukuyama, JP 10 24
Murao, Akinori Fukuyama, JP 10 23
Watakabe, Shiro Fukuyama, JP 3 14

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