Blast furnace operation method

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12180555
APP PUB NO 20220119899A1
SERIAL NO

17430657

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Abstract

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A blast furnace operation method according to one aspect of the present invention includes: a process of acquiring a correlation between a carbon consumption in reducing gas and a reduction InputΔC in specific carbon consumption caused by blowing the reducing gas into the blast furnace per molar ratio C/H of carbon atoms to hydrogen atoms in the reducing gas; a process of determining a carbon consumption in the reducing gas where the reduction InputΔC in specific carbon consumption is a predetermined target value or higher on the basis of the correlation acquired per C/H; and a process of adjusting the amount of the reducing gas blown into the blast furnace on the basis of the determined carbon consumption in the reducing gas and the carbon proportion in the reducing gas.

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Patent Owner(s)

Patent OwnerAddress
JFE STEEL CORPORATION2-3 UCHISAIWAI-CHO 2-CHOME CHIYODA-KU TOKYO 1000011 ?1000011
KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL LTD )2-4 WAKINOHAMA-KAIGANDORI 2-CHOME CHUO-KU KOBE-SHI HYOGO 6518585 ?6518585
NIPPON STEEL CORPORATION6-1 MARUNOUCHI 2-CHOME CHIYODA-KU TOKYO 1008071 ?1008071
NIPPON STEEL ENGINEERING CO LTD5-1 OSAKI 1-CHOME SHINAGAWA-KU TOKYO 1418604 ?1418604

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nakano, Kaoru Tokyo, JP 5 41
Nishioka, Koki Tokyo, JP 1 0
Sakai, Hiroshi Tokyo, JP 330 3676

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