Study on numerical simulation for flow field optimization in argon blowing VD ladle

Liu Chonglin; Song Sicheng; Sun Yanhui; An Hanghang; Zhou Lvmin; Liang Longqing; Long Lian

doi:10.7513/j.issn.1004-7638.2021.04.020

Volume 42 Issue 4

Aug. 2021

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Liu Chonglin, Song Sicheng, Sun Yanhui, An Hanghang, Zhou Lvmin, Liang Longqing, Long Lian. Study on numerical simulation for flow field optimization in argon blowing VD ladle[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(4): 117-123. doi: 10.7513/j.issn.1004-7638.2021.04.020

Citation:

Liu Chonglin, Song Sicheng, Sun Yanhui, An Hanghang, Zhou Lvmin, Liang Longqing, Long Lian. Study on numerical simulation for flow field optimization in argon blowing VD ladle[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(4): 117-123. doi: 10.7513/j.issn.1004-7638.2021.04.020

Citation:

Liu Chonglin, Song Sicheng, Sun Yanhui, An Hanghang, Zhou Lvmin, Liang Longqing, Long Lian. Study on numerical simulation for flow field optimization in argon blowing VD ladle[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(4): 117-123. doi: 10.7513/j.issn.1004-7638.2021.04.020

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Study on numerical simulation for flow field optimization in argon blowing VD ladle

doi: 10.7513/j.issn.1004-7638.2021.04.020

1.
Guangxi Liuzhou Iron and Steel (Group) Company, Liuzhou 545002, Guangxi, China
2.
Collaborative Innovation Center of Steel Technology，University of Science and Technology Beijing, Beijing 100083, China

Received Date: 2019-12-09
Publish Date: 2021-08-10

Abstract

Abstract

Taking a steel plant VD ladle furnace as research object and using commercial software ANSYS-Fluent, a 150 t ladle bottom-blown argon gas model was established to simulate different molten steel volumes and two argon-blowing ports with different argon-blowing volume. The flow field and velocity were changed, and the flow of molten steel in ladle furnace after standing for 10 minutes was also considered. All tests monitored the speed of same position at lower part of ladle, and selected the optimal production plan through the orthogonal design method. The results show that variation of molten steel volume and bottom-blown argon flow in ladle within a small range have little effect on flow field and flow velocity of molten steel in ladle. And the influence of steel and argon blowing volume on the internal flow field after standing for 10 minutes is negligible. Excessive argon blowing will result in a larger slag hole opening, which will cause slag entrapment and gas suction. If the blowing amount is too small, lower flow rate of molten steel will result in a longer time for the formation of a stable circulating flow field. Finally, through comparative analysis, it is concluded that when the height of molten steel is 3 590 mm and the flow rate of No. 1 and No. 2 argon ports are both 0.9 m³/h, the comprehensive flow effect in ladle furnace is better, which reduces contamination degree of molten steel and improves production efficiency.
- VD ladle furnace,
- bottom-blown argon,
- flow field,
- numerical simulation,
- two-phase flow,
- argon blowing period,
- standing period

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References(17)

References

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