摘要
基于Fluent软件建立蜗壳式旋风分离器物理模型,对蜗壳式旋风分离器气固两相进行模拟,为优化分离器的结构提供理论支撑。分别研究了入口速度、入口颗粒粒径和入口颗粒浓度对分离器内分离效率和压力损失的影响。结果表明:蜗壳式旋风分离器的压降随入口风速的增大而增大,入口风速能够提高分离效率,但是压力损失也逐渐增大;相同入口速度下,分离效率随着颗粒粒径的增大而增大,但增加的幅度有所降低,最终逐渐趋向稳定;蜗壳式旋风分离器的压降随入口颗粒浓度的增大而减小,分离效率随入口颗粒浓度的增大而增大。
Based on the Fluent software, the physical model of the spiral case cyclone separator was established, and the gas solid two phases of the spiral case cyclone separator were simulated to provide theoretical support for optimizing the structure of the separator. The effects of inlet velocity, inlet particle size and inlet particle concentration on separation efficiency and pressure loss in separator were studied respectively. The results show that the pressure drop of the spiral case cyclone separator increases with the increase of the inlet wind speed, and the inlet wind speed can increase the separation efficiency, but the pressure loss increases gradually; the separation efficiency increases with the increase of particle size at the same inlet velocity, but the increase amplitude decreases and eventually gradually tends to stability. The pressure drop of the shell cyclone decreases with the increase of the inlet particle concentration, and the separation efficiency increases with the increase of the inlet particle concentration.
作者
梁容真
田伟
阎富生
LIANG Rongzhen;TIAN Wei;YAN Fusheng(School of Metallurgy,Northeastern Universit;Shenyang 110819,Liaoning,China)
出处
《四川冶金》
CAS
2018年第4期6-10,共5页
Sichuan Metallurgy
基金
国家自然科学基金资助项目(51210007)
辽宁省自然科学基金资助项目(2014020029)
关键词
蜗壳式旋风分离器
入口风速
颗粒浓度
颗粒物性
数值模拟
volute cyclone separator velocity field
inlet wind speed
particle concentration
particulate matter property
numerical simulation
