Inclusion Removal Studies in a Two-Strand Tundish: Effect of Substitution of Turbulence Inhibitor with Dams and Effect of Teeming Ladle and Ladle Shroud Set Asymmetry Employing Physical and Mathematical Modeling

Steel refining in a continuous casting tundish using flow modifiers is a common practice in the steel industry given its positive effect on the removal of inclusions from the steel bath. In this work, the effect of replacing the turbulence inhibitor with dams and the effect of the teeming ladle and ladle shroud set misalignment on inclusion removal have been evaluated through physical model simulation. The effect on the residence time distribution and the refractory wear have also been investigated. It has been shown that for larger particles, the inclusion removal efficiency with turbulence inhibitor was not very different as compared with the dams. However, in the case of smaller particles, the inclusion removal efficiency was 7.15% greater than the case of dams in comparison with the inhibitor. The inlet asymmetry led to a drop in the removal efficiency of smaller inclusion particles. For increased inlet asymmetry, greater refractory wear of the weirs should be expected for configurations without turbulence inhibitors.