稀土萃取搅拌槽内两相混合过程的数值计算

Numerical calculation of two-phase mixing process in rare earth extraction agitation tank

应用CFD流体仿真软件对稀土萃取搅拌槽内两相料液的混合过程进行了三维数值模拟,通过搅拌混合过程中的非定常计算,得到了搅拌槽内挡板宽度与混合时间及搅拌能耗之间的关系。利用该方法可以确定最佳挡板宽度,达到优化槽体结构,提高整体混合性能的目的。同时也为其他类型搅拌设备的优化设计提供理论参考。

A three-dimensional numerical simulation is conducted by using the CFD fluid simulation software to simulate the mixing process of the two-phase mixture in rare earth extraction agitation tank.The relationship between baffle width and mixing time and energy consumption is obtained through the calculation of the unsteady flow in the mixing process.This method can be used to determine the optimum baffle width to optimize the tank structure.It can also improve the overall mixing performance.At the same time,it also provides a theoretical reference for the optimization design of other types of mixing equipment.