The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 31, 2024
Filed:
Feb. 17, 2020
Nippon Steel Corporation, Tokyo, JP;
Jfe Steel Corporation, Tokyo, JP;
Kobe Steel, Ltd., Kobe, JP;
Nippon Steel Engineering Co., Ltd., Tokyo, JP;
NIPPON STEEL CORPORATION;, Tokyo, JP;
JFE Steel Corporation, Tokyo, JP;
Kobe Steel, Ltd., Kobe, JP;
NIPPON STEEL ENGINEERING CO., LTD., Tokyo, JP;
Abstract
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.