电石渣旋风分离器的设计及仿真

Design and Simulation of the Carbide Slag Cyclone Separator

采用旋风分离器分离提纯电石渣中Ca(OH)2,设计了符合电石渣特性的旋风分离器,并使用Fluent软件平台,采用雷诺系数模型(RSM)以及DPM模型,对分离器内部流场进行仿真模拟,分别从速度、压力、湍流强度等方面分析。结果表明:以临界粒径为切入点,设计的旋风分离器,内部具有稳定的流场;在不大于46μm区度范围内,电石渣Ca(OH)2含量较高的颗粒可以得到集中收集,而大于46μm含杂质较多的电石渣颗粒得到集中处理;使用旋风分离器能够提纯出电石渣中的Ca(OH)2,以及达到预期的提纯目的。

The cyclone separator is often used to separate and purify Ca（OH）2 in the carbide slag,thus a type of cyclone sep-arator that would accord with the carbide slag characteristics is designed in this paper. Based on the Fluent software platform,analogue simulation to the internal flow field of separator is conducted by using the Renault coefficient model（RSM）and theDPM model,and then it is analyzed on the aspects of seed,pressure,turbulence intensity respectively. Results show that thecritical particle size as the breakthrough point,the designed cyclone separator has stable interior flow field;within the scope ofno more than 46 μm area,the carbide slag grains of higher Ca（OH）2content could be collected,while in larger than 46 μmrange,the carbide slag grains with impurity are centralized processing. It is proved that the cyclone separator can isolate Ca（OH）2from the calcium carbide slag,thus the desired purification purpose could be achieved.