The behavior of gas-liquid two-phase flow in a vessel under reduced pressure was evaluated, and the deviation between the theoretical and measured concentration in the ladle was measured using a water model. The fluid flow trajectory and mixing behavior between the fresh and stale solutions in the vessel under different degrees of vacuum were predicted. The flow in the up-leg changed from a dispersed bubble flow regime to a coalescence bubble flow regime as the degree of vacuum decreased. After reaching the ultimate degree of vacuum, the flow was a discrete bubble flow regime if the amount of liquid in the vacuum chamber was greater than the processing capacity of the chamber. There were many dead zones and local circulation phenomena in the ladle. Even in the best mixing case in the experiment, there was an obvious deviation between the measured and theoretical conductivity values in the upper part of the ladle, and the difference increased as the degree of vacuum decreased.

评估了减压容器中气液两相流动的行为，并使用水模型测量了钢包中理论浓度与实测浓度之间的偏差。预测了不同真空度下容器中新鲜和陈旧溶液之间的流体流动轨迹和混合行为。随着真空度的降低，上支管中的流动从分散气泡流态变为聚结气泡流态。达到极限真空度后，如果真空室中的液体量大于室的处理能力，则流动为离散气泡流态。钢包内有许多死区和局部循环现象。即使在实验中最好的混合情况下，