无压三产品重介质旋流器流场数值模拟及底流口参数优化  

Numerical simulation of flow field in unpressurized feeding three-product dense medium cyclone and parameter optimization of the apex diameter

作　　者：邓建军[1] 梁斌昌 赵建章[1,2] 盛腾飞[1] 

机构地区：[1]中国矿业大学化工学院,江苏徐州221116 [2]新疆工程学院化学与环境工程系,新疆乌鲁木齐830091

出　　处：《煤炭工程》2017年第11期133-137,共5页Coal Engineering

基　　金：国家自然基金项目"重介分选工艺参数的实时预测机制与在线控制策略研究"(51174202)

摘　　要：利用FLUENT软件,在固定的结构及操作条件下,对三产品重介质旋流器流场进行了模拟,并与实验装置相应证,得出模拟的数值条件是合适的。在此基础上,通过改变底流口的直径(41mm、44mm、47mm、50mm、53mm),分别研究一、二段旋流器的流场,研究结果表明:二段底流口直径改变对一段旋流器流场没有影响;二段底流口直径改变主要影响二段旋流器的空气柱直径、流场压力大小和压力梯度,但变化趋势影响不大。The flow field of unpressurized feeding three - product dense medium cyclone is simulated using FLUENT under the fixed structure and operation condition, and which is verified in the experimental device. And the flow filed in the cyclone is researched with different apex diameter of second- stage cyclones （41mm, 44mm, 47mm, 50mm, 53mm）, the results show that, the apex changing has no effect on the first - stage cyclones; the air column diameter of second - stage cyclone, pressure distribution of flow field and pressure gradient is affected by the apex changing, and the variation tendency of pressure is similar.

关 键 词：FLUENT 重介质旋流器 模拟 底流口直径 压力分布 

分 类 号：TD355[矿业工程—矿井建设]