Numerical simulation of inclusion removal behavior in six strand T-type tundish
ZHU Hang-hang1, WANG Min1,2, YAO Cheng1, BAO Yan-ping1
1. State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China; 2. Technical Support Center for Prevention and Control of Disastrous Accidents in Metal Smelting, Beijing 100083, China
Abstract:Taking the 41-ton round billet continuous casting tundish as the research object, using ANSYS software, combined with the flow model and Lagrange discrete phase model, the molten steel flow and inclusions behavior were simulated. A new judgment standard was set for the boundary condition of the interface between steel and slag in the tundish through the user-defined function, that is, whether inclusions were removed or entered the molten steel was judged according to the force of inclusion. The number density of inclusions at the exit of tundish was calculated by numerical simulation, and compared with the results of industrial experiments. It is found that the model with new judgment standard has higher calculation accuracy than the traditional trap boundary condition. On this basis, the floating time, floating position and removal rate of Al2O3 inclusion with different sizes in the steady state casting process were calculated. This thesis provided support for better study of the inclusion behavior in tundish.
祝航航, 王敏, 姚骋, 包燕平. 六流T型中间包夹杂物去除行为的数值模拟[J]. 中国冶金, 2022, 32(8): 89-97.
ZHU Hang-hang, WANG Min, YAO Cheng, BAO Yan-ping. Numerical simulation of inclusion removal behavior in six strand T-type tundish[J]. China Metallurgy, 2022, 32(8): 89-97.
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