In multi-strand tundish, the structure is more complex and has various types compared with single/double-strand tundish and the horizontal distance between ladle shroud and each submerged nozzles is much different which leads to the inhomogeneity between each outlets. In this paper, physical simulation was conducted in a full-scale physical model of asymmetrical multi-strand tundish to study the effect of the direction of the diversion hole on the retaining wall on tundish performance. The optimized retaining wall is applied to field production, and industrial experiments were conducted to analyze the effect of inclusion removal before and after optimization. The effects were quantified by measuring residence time of fluid in the tundish. According to the results, the optimized retaining wall improved the homogeneity between each outlets and enhanced the metallurgical function of the tundish.
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This work was financially supported by the Open Project of State Key Laboratory of Advanced Special Steel, Shanghai University (SKLASS 2017-13).
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