Simulation research of inclusive removal by argon blowing stirring during ladle tapping process

Li Yang; Wu Chenhui; Deng Anyuan; Zeng Jianhua; Zhang Min; Yang Xiaodong

doi:10.7513/j.issn.1004-7638.2023.01.023

Volume 44 Issue 1

Feb. 2023

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Li Yang, Wu Chenhui, Deng Anyuan, Zeng Jianhua, Zhang Min, Yang Xiaodong. Simulation research of inclusive removal by argon blowing stirring during ladle tapping process[J]. IRON STEEL VANADIUM TITANIUM, 2023, 44(1): 142-150. doi: 10.7513/j.issn.1004-7638.2023.01.023

Citation:

Li Yang, Wu Chenhui, Deng Anyuan, Zeng Jianhua, Zhang Min, Yang Xiaodong. Simulation research of inclusive removal by argon blowing stirring during ladle tapping process[J]. IRON STEEL VANADIUM TITANIUM, 2023, 44(1): 142-150. doi: 10.7513/j.issn.1004-7638.2023.01.023

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Simulation research of inclusive removal by argon blowing stirring during ladle tapping process

doi: 10.7513/j.issn.1004-7638.2023.01.023

1.
State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization, Panzhihua 617000, Sichuan, China
2.
Key Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang 110004, Liaoning, China
3.
Steelmaking Plant, Pangang Group Xichang Steel and Vanadium Co. Ltd., Xichang 615000, Sichuan, China

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Received Date: 2022-03-30
Publish Date: 2023-02-28

Abstract

Abstract

Based on the process of ladle tapping, a five-phase numerical model including molten steel, molten slag, gas phase, argon bubble and inclusion had been established and used to investigate the feasibility of improving inclusions removal by argon blowing stirring during the tapping process, and the effect of argon blowing rate on flow field, slag-eye, and the removal efficiency of inclusions. The results show that the argon blowing stirring process can strengthen the flow of molten steel and promote the removal of inclusions. Compared with no argon blowing stirring, the removal efficiency of inclusions increases from 80.74% to 96.69% whilst the argon blowing rate is 100 L/min at 750 s, and the number of inclusions flowed into tundish is reduced by 67.4%. The size of slag-eye and the removal rate of inclusions increase with the increase of argon blowing rate, but argon blowing rate has a little effect on the removal efficiency of inclusions. The recommended argon blowing rate is 100 L/min.
- ladle,
- argon blowing stirring,
- numerical simulation,
- multi-phase flow,
- inclusions,
- inclusions removal rate

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References(27)

References

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