低砷磷生产工艺中分相器的优化技术研究

Optimization of phase separator used in low arsenic phosphorus production process

通过建立计算流体力学模型,采用Fluent软件,选用雷诺应力模型(RSM模型)作为湍流模型对该工艺中的液-液旋流分相器进行流体力学数值模拟,通过数值模拟仿真优化旋流器的各结构参数,同时研究不同操作参数和物性参数对旋流器分离效率的影响,并在此基础上进行结构参数的优化。模拟结果表明,溢流口直径为30 mm,溢流管伸入长度为60 mm,圆柱段长度为80 mm时旋流器分离效率最佳。

A computational fluid dynamics （CFD） modeling methodology is established to simulate the phase separator.Through selecting the Reynolds stress model （RSM） as the turbulence model in Fluent software,CFD analysis on the liquid-liquid phase separator is performed.The structure parameters are optimized and the separation efficiency at different operating and physical property parameters are studied.The reasonable structure parameters are determined as follows：30 mm of diameter of overflow vent,60 mm of insertion length of overflow pipe,and 80 mm of cylinder length.