Long-life service method for powder-bottom-injecting converter based on collaborative hot replacement of furnace bottom and bottom purging brick

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United States of America Patent

PATENT NO 11667982
APP PUB NO 20220235427A1
SERIAL NO

17476501

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Abstract

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A long-life service method for powder-bottom-injecting converter based on collaborative hot replacement of furnace bottom and bottom purging brick belongs to the field of steelmaking technologies using powder-bottom-injecting converters. According to equipment characteristics, process characteristics, and erosion characteristics of the powder-bottom-injecting converter, the design, arrangement, installation, use, maintenance, and replacement of the bottom purging/powder injection bricks are systematically optimized and improved, a technology of automatically detecting the erosion height of bottom purging bricks is adopted, and hot replacement of bottom purging/powder injection bricks and hot replacement of the converter furnace bottom are used collaboratively, which not only can prolong the service life of a single bottom purging/powder injection brick, but also can greatly prolong the overall life of the powder-bottom-injecting converter from 1000-3000 heats in the prior art to 6000-10000 heats. Hence, the life of the powder-bottom-injecting converter is as long as that of a conventional converter.

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Patent Owner(s)

Patent OwnerAddress
SOOCHOW UNIVERSITY215123 NO 199 BENEVOLENCE ROAD SUZHOU INDUSTRIAL PARK JIANGSU SUZHOU SUZHOU CITY JIANGSU PROVINCE 215123
UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING100083 HAIDIAN DISTRICT XUEYUAN ROAD NO 30 BEIJING CITY BEIJING CITY 100083

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dong, Kai Beijing, CN 82 103
Hu, Shaoyan Suzhou, CN 8 5
Li, Weifeng Beijing, CN 24 145
Su, Rongfang Beijing, CN 4 1
Zhu, Rong Beijing, CN 23 149

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