University of Science and Technology Beijing

Hbzx High Tech Co., Ltd.

Xuanhua Iron and Steel Group Co., Ltd.

Minghai Zhang

Xin Li

Rong Zhu

Hongbin Wang

Guangsheng Wei

Yongqiang Yang

Jinlong Wang

Jianzhong Wang

Yunxiang Zhao

Huan Chang

Ceng Li

Jianping Jia

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.

Method for controlling nitrogen in steelmaking by spraying hydrogen containing plasma

Growing community of inventors

Beijing, China

Minghai Zhang