DWP重介质旋流器流场的数值模拟  

Numerical simulation of flow field in the DWP heavy medium cyclone

作　　者：刘峰[1] 郭秀军[2] 钱爱军[2] 

机构地区：[1]中国矿业大学(北京)化学与环境工程学院,北京100083 [2]煤炭科学研究总院唐山分院,河北唐山063012

出　　处：《煤炭学报》2007年第2期186-189,共4页Journal of China Coal Society

基　　金："十五"国家科技攻关基金资助项目(2004BA615A-12)

摘　　要：选用雷诺应力湍流计算模型(RSM),对两种直径为1 300 mm的DWP型重介质旋流器的流场进行了数值模拟,并对结构参数和能耗进行了研究.对流场三维速度、压强、密度和空气柱的数值模拟研究表明,在旋流器内存在短路流现象;双入介DWP旋流器分选效果优于单入介DWP旋流器,处理能力高于单入介DWP旋流器,能耗比单入介DWP旋流器减少33%.Based on the Reynolds Stress Model （ RSM）, the numerical simulation of the flow fields in two kinds of DWP heavy medium cyclones with diameter of 1 300 mm was made and their structural parameters and power consumption were studied as well. The results of the numerical simulation research made to the three-dimensional velocity, pressure strength, density and air column of each flow field indicate that, the short-circuit flow circumstances exist in the cyclones and compared with the DWP single-medium inlet cyclone, the DWP dual-medium inlet cyclone is superior in separation efficiency and capacity, and even reduces by 33% in power consumption.

关 键 词：DWP重介质旋流器 双入介 湍流模型 速度场 压力场 

分 类 号：TD922.7[矿业工程—选矿]