振动磨筒内磨介流的DEM数值仿真与分析  

Research and Numerical Simulation on Medium Flow in Vibration Mill Based on DEM

作　　者：陆薛彬[1] 刘极峰[1,2] 杨小兰[2] 丁维[1] 贾晓林[2] 

机构地区：[1]常州大学机械工程学院,江苏常州213164 [2]南京工程学院机械工程学院,南京211100

出　　处：《煤矿机械》2013年第8期121-122,共2页Coal Mine Machinery

基　　金：国家自然科学基金项目(21003073);河南省重大科技攻关项目(102102210050);江苏省自然科学基金项目(BK2012865)

摘　　要：建立磨介流的运动学数值仿真模型,运用离散单元法模拟了磨介流运动轨迹。将筒体截面等分成3个区域,借助DEM离散元软件得到了每个区域中磨介的平均动能。结果表明在给定的振频振幅下,筒体内部都会存在乏能区,但提高振幅后,乏能区明显缩小,匀化了能量分布,提高了粉磨效率。The kinematic model of medium flow is constructed,and the motion trail is imitated based on DEM.Grinding tube is divided into the same area of three regions,and the average kinetic energy of medium in each region is gain by using DEM software.The results show that the low energy region is always existed,but after increasing the vibration amplitude,the low energy region is significantly reduced,energy distribution is uniformed,and the efficiency is improved significantly.

关 键 词：振动磨 筒体 DEM 磨介流 数值仿真 

分 类 号：TD453[矿业工程—矿山机电]