A New Electrostatic Dispersion Method for Fine Powder in Air
A new electrostatic dispersion device was designed to reduce the agglomeration of fine powder in the air. This device is using the repulse force between particles which charged the same charge to prevent the particles from reuniting. The effects of charge voltage, particle size, the distant between electrode, and moisture content on the dispersion degree of the powder are discussed. The invalidation time of the electrostatic dispersion is also highlighted in the paper. The results show that the electrostatic dispersion is an effective method for the fine powders in the air. The charge voltage is the most important parameter for the dispersion. Middle size particle got best dispersion. When the distance between the electrodes is 24cm, the dispersion degree reaches the maximum. The humidity of the powder not only affects the charge of the powder, but also affects the dispersion degree of the powder.
Powder Electrostatic technology Dispersion Particle
Zheng Xu Shouci Lu
General research institute for nonferrous metals,Beiing,100088,China Civil and Environmental School of University of Science and Technology,Beijing,100083,China
国际会议
2008国际粉体技术与应用论坛暨全国粉体产品与设备应用技术交流大会
北京
英文
1-13
2008-04-01（万方平台首次上网日期，不代表论文的发表时间）