Analysis of Optimization Weights for Flow Field of Internal Rotation Stabilizer Coupled with Porous Retaining Wall

Ziyu Liu,Peng Lin,Yan Jin,Jun Li,Feifang Gan,Jingyu Huang

doi:10.3390/met11081208

Ziyu Liu, Peng Lin + Show 4 more

Open Access

https://doi.org/10.3390/met11081208

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Abstract

In this paper, the flow field of the approximate T-shaped tundish and the removal rate of fine inclusions are improved by changing the parameters of the flow control device of the SCB (stabilizer coupling baffle) structure. Studies have shown that the synergistic effect of the DPRW (double porous retaining wall) structure and the IRS (internal rotation stabilizer) structure has excellent performance in mixing the temperature composition of the molten steel, increasing the average residence time of the molten steel, reducing the volume fraction of the dead zone, and improving the removal rate of fine inclusions. The opening method and diameter of the double-layer retaining wall have a greater impact on the flow field parameters. The larger the diameter, the more conducive to increasing the average residence time, and the smaller the diameter, the more conducive to increasing the removal rate of fine inclusions.

Highlights

Optimization Weights for Flow FieldThe tundish has the function of storing and distributing molten steel in the continuous casting production process to ensure the continuity and automation of the production process
The research goal of this paper is to explore the influence of SCB structure on the flow field movement of the tundish and the removal rate of fine inclusions
The results of variance analysis reflect the level of influence of various factors on the flow field in the tundish and the removal rate of fine inclusions

Summary

Introduction

The tundish has the function of storing and distributing molten steel in the continuous casting production process to ensure the continuity and automation of the production process. In the modern continuous casting production process, in order to improve the output and yield rate of cast slabs, most of the production methods adopt higher drawing speed and mold cooling intensity. The small-sized inclusions do not have enough time to gather so that they are discretely distributed on the slab dendrite interface, and are difficult to remove by rolling process after forming the slab [1]. With the expansion of the demand for high quality steel in modern production and life, higher requirements are put forward for the quality of molten steel, which gives the tundish an increasingly important role in the refining of molten steel [2]. The main functions include [3,4,5,6]: of Internal Rotation Stabilizer

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Results

Conclusion