基于正交试验法的萃取槽澄清效率研究

Study on clarification efficiency of extraction tank based on orthogonal test method

以稀土萃取槽模型为研究对象,运用ANSYS Fluent流体仿真软件对加入搅拌桨后的澄清室内的澄清过程进行模拟分析,通过观察分散带厚度的变化来分析不同入口速度、搅拌转速以及搅拌桨距离澄清室底部的高度对澄清效率的影响。研究表明:当入口速度为0.1m/s,搅拌转速为25r/min,搅拌桨离底高度为400mm时,分散带厚度最小,澄清效率最高。

The simplified model of rare earth extraction tank was taken as the research object to simulate the clarification process in the settler after adding the agitator with ANSYS Fluent software,the effects of inlet velocity,stirring speed and impeller distance from the bottom of the clarifier on the clarification efficiency were analyzed by observing the thickness of the dispersion band.The results show that when the inlet velocity is 0.1 m/s,the stirring speed is 25 rpm and the impeller height is 400 mm,the dispersion band thickness is the minimum and the clarification effect is the best.