粉体碰撞带电机理的探讨  

Probe into the Mechanism of Collision Charge of Fine Particle

作　　者：安振连[1] 陈清如[1] 章新喜[1] 

机构地区：[1]中国矿业大学煤综合利用系

出　　处：《中国矿业大学学报》1997年第2期71-74,共4页Journal of China University of Mining & Technology

摘　　要：阐述了固体接触带电的一般理论，系统地分析了颗粒的碰撞过程，并利用固体表面态理论及电容器模型和放电缓和模型对碰撞带电三个过程的电荷转移做了定量或定性的说明．同时详细分析和研究了碰撞速度的切向分量和法向分量对颗粒带电的影响机理．The general theory of solid contact electrification is expounded. The collision process of particles is systematically analysed . And the charge transfer in the three processes of collision electrification has been quantitatively or qualitatively explained by using the solid surface state theory, the condenser model, and the discharge relaxation model. Meanwhile, the mechanism of influence of collision velocity in both the tangential component and the normal component on particle electrification is studied and analysed in detail.

关 键 词：颗粒碰撞 带电过程 电磁选矿 带电机理 粉体碰撞 

分 类 号：TD924[矿业工程—选矿]