METHOD FOR CONTROLLING NITROGEN IN STEELMAKING BY SPRAYING HYDROGEN CONTAINING PLASMA

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United States of America

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)

Patent OwnerAddress
UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING100083 NO 30 HAIDIAN DISTRICT BEIJING XUEYUAN ROAD BEIJING CITY BEIJING CITY 100083
XUANHUA IRON AND STEEL GROUP CO LTD075100 NO 30 EAST PAI DONG STREET XUANHUA DISTRICT HEBEI ZHANGJIAKOU ZHANGJIAKOU CITY HEBEI PROVINCE 075100
HBZX HIGH TECH CO LTDNO 93 XUAN FU STREET XUANHUA ZHANGJIAKOU

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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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