Flow field simulation and optimization of multi-strand tundish

ZHAO Zhan-shan; WANG Shi; REN Tao; LI Yi; ZHANG Zhong-fu; WANG Qing

doi:10.13228/j.boyuan.issn1005-4006.20220034

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Continuous Casting ›› 2022, Vol. 41 ›› Issue (5) : 23-29. DOI: 10.13228/j.boyuan.issn1005-4006.20220034

Continuous Casting Technology

Flow field simulation and optimization of multi-strand tundish

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Abstract

In order to reduce the probability of slag rolling and improve the removal ability of inclusions, the internal structure of multi-strand tundish in a steel plant was optimized by physical simulation and numerical simulation. The results show that the elevation angle of the diversion hole has a great influence on the flow field and temperature field in the tundish. The improved retaining wall uses 25 ° elevation diversion holes to reduce the maximum temperature difference of each flow from 5.2 ℃ to 2.4 ℃. The smaller elevation angle of the diversion hole is beneficial to the removal of inclusions, and the flow uniformity at the elevation angle of 25 ° is better. Increasing the dam height is also conducive to the floating of inclusions. The recommended dam height is 650 mm. In addition, it is recommended to keep the pouring height above 100 mm to eliminate the adverse effect of slag entrapment.

Key words

tundish simulation / flow control device / inclusion / flow filed / slag

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ZHAO Zhan-shan, WANG Shi, REN Tao, et al. Flow field simulation and optimization of multi-strand tundish[J]. Continuous Casting, 2022, 41(5): 23-29 https://doi.org/10.13228/j.boyuan.issn1005-4006.20220034

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