• 安全与环保 •

### 高压静电场中粉尘静电力及收集的研究

1. 江西理工大学
• 出版日期:2009-03-14 发布日期:2012-01-30
• 基金资助:

* 国家自然科学基金项目(编号：50167001)。

### Electrostatic Forces and Dust Collection in High Electrostatic Field

Zhi Xueyi，Jiang Xiaohua，Tang Minkang

1. Jiangxi University of Science and Technology
• Online:2009-03-14 Published:2012-01-30

Abstract: Electrostatic forces consisting of corona electrostatic force, polarization electrostatic force, contact electrostatic force & faradic electrostatic force are of great importance to dust adhesion on the plate and collection in electrostatic precipitator.The theoretical equations for all kinds of electrostatic forces of particles from microcosmic aspect are derived by setting up a model.By simulating the electrostatic field in electrostatic precipitator, the magnitude of the electrostatic forces of dust with different applied pulse electrostatic fields are measured，and the conditions for the air re-entrainment of particles under rapping are proposed.The experiment result shows that the electrostatic forces of dust is proportional to the applied pulse electrostatic field and the dust can not be re-entrained easily because of high electrostatic forces at a great current density .It is indicated that the charging bar is also beneficial to controlling the re-entrainment of precipitated particles.