The mixing behavior of compositional modifiers into viscous liquid BOF slag was studied using fluid flow modeling under industrially relevant conditions. The Volume of Fluid-Large Eddy Simulation-Discrete Phase Model was used to simulate the gas-solid particle-liquid slag turbulent flow. The area fraction of the particle migration zone was calculated to quantify the mixing process. The results show that increasing gas flow rate and/or depth of lance submergence can shrink the quiescent region at the bottom of the slag pot, shortening the mixing process. Influence of the lance submergence depth is more significant on the particle mixing process. The input energy flux can be used as a measure to quantitatively evaluate the mixing behavior. Additionally, it was confirmed that increasing the slag viscosity prolongs the mixing process. Particle size in the range that was studied has little influence on the particle migration.

中文翻译：

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粘性液体转炉渣中添加剂的混合特性

在工业相关条件下使用流体流动模型研究了成分改性剂与粘性液体转炉炉渣的混合行为。采用体积流体-大涡模拟-离散相模型来模拟气-固-颗粒-液渣湍流。计算粒子迁移区的面积分数以量化混合过程。结果表明，增加气体流速和/或喷枪浸没深度可以缩小渣罐底部的静止区域，缩短混合过程。喷枪浸没深度对颗粒混合过程的影响更为显着。输入能量通量可用作定量评估混合行为的量度。此外，已证实增加炉渣粘度会延长混合过程。