Method for controlling nitrogen in steelmaking by spraying hydrogen containing plasma

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12234521
APP PUB NO 20240401161A1
SERIAL NO

18670631

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Abstract

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The application provides a method for controlling nitrogen in steelmaking by spraying hydrogen containing plasma, including: using a mixture of hydrogen rich gas and argon gas to generate hydrogen plasma for denitrification of molten steel during at least one of arc furnace smelting, ladle refining, VOD refining, and RH refining. The method for controlling nitrogen in steelmaking by spraying hydrogen containing plasma provided in the application can effectively remove nitrogen from the molten steel by spraying a mixture of argon gas and hydrogen rich gas into the molten steel through a hollow electrode and plasma torch, reducing electrode consumption and electricity consumption per ton steel, and also reducing arc radiation heat loss, improving heating rate, thereby shortening smelting time and reducing production costs.

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Patent Owner(s)

  • XUANHUA IRON AND STEEL GROUP CO., LTD.; UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING; HBZX HIGH TECH CO., LTD.

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chang, Huan Beijing, CN 8 48
Jia, Jianping Beijing, CN 3 1
Li, Ceng Beijing, CN 2 0
Li, Xin Beijing, CN 946 7137
Wang, Hongbin Beijing, CN 71 383
Wang, Jianzhong Beijing, CN 8 51
Wang, Jinlong Beijing, CN 21 38
Wei, Guangsheng Beijing, CN 10 5
Yang, Yongqiang Beijing, CN 21 63
Zhang, Minghai Beijing, CN 1 0
Zhao, Yunxiang Beijing, CN 3 28
Zhu, Rong Beijing, CN 23 149

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