摘要
对球磨机筒体内介质运动规律进行研究是提高磨矿效率的主要途径,笔者利用三维离散元软件PFC3D对球磨机介质运动进行数值模拟,得到球磨机泻落临界转速率与抛落临界转速率,并与计算结果和高速摄影实验结果进行对比分析。所得结果表明,利用PFC3D进行计算机数值模拟能够准确分析球磨机介质运动形态。笔者将临界转速率划分为泻落和抛落两种。
The movement of the media in the tube is the primary factor for improving the grinding efficiency.We simulate numerically the movement of the mill＇s medium with the three-dimensional discrete element software Particle Flow Code in 3 Dimensions（PFC3D）.The result of rush critical rotating speed rate and throw critical rotating speed rate are contrasted with the kinetic profile of the medium by high-speed photographic experiment and the calculated results.It is an appropriate way to study the movement of medium by numerical simulation with computer.The critical rotating speed rate is divided into rush and throw critical rotating speed rate.It is helpful for studying the actual movement of medium and setting the operating parameters.
出处
《机械科学与技术》
CSCD
北大核心
2010年第10期1302-1305,共4页
Mechanical Science and Technology for Aerospace Engineering
关键词
数值模拟
泻落临界转速
抛落临界转速
numerical simulation
rush critical rotating speed rate
throw critical rotating speed rate
作者简介
作者简介：孙军锋（1984-），硕士，研究方向为碎磨设备研究与开发，CAD／CAE／CAM，junfengsun@139．oom；
董为民（联系人），教授，硕士生导师，kgjd2007@yahoo．cn
