Optimization of Deflector Hole on Porous Baffle Wall in Six-Strand Tundish for Bloom Continuous Casting

Porous baffle wallPorous baffle wall is a common flow control device in tundishTundish. The flow field in the tundish can be improved by adjusting the elevation angle and position of the deflector holeDeflector hole on porous baffle wallPorous baffle wall, so the residence time of liquid steel is prolonged, inclusionsInclusions easily to be removed. In this paper, the method of orthogonal experimental design is used to simulate and optimize the deflector holeDeflector hole on the porous baffle wallPorous baffle wall. The results showed that the flow field of the casting region in tundishTundish can be improved significantly with proper elevation angle and location of the deflector hole. The volume of dead zone decreased from 23.1% to 18.4%, the average residence time of each outlet changed from 572.6 s, 594.6 s, and 794.4 s to 663.5 s, 633.6 s, and 663.2, the standard deviation decreased from 99.8 to 14.0, and consistency of outlet was greatly improved.