粉体柱型料仓电场数值计算及安全技术评价的研究

Research on Electrical Field Numerical Calculation & Safety Evaluation in Cylindrical Silo Filled Powder

介绍了圆柱型粉体料仓灌充欧姆介质粉体时电场分布的数值计算软件的设计思想及其特点，并结合我国的实践，就粉体料仓的静电安全技术评价进行了讨论；提出了料仓刚刚灌充时或者接近灌满时，电场的起伏变化，可能是诱发危害性静电放电的原因之一。

The design ideas and characters of a calculation software on field distribution when ohmic dielectrical powder is filled into cylindrical silo are presented in this paper. Also included in the discussion is the static safety evaluation in silo with practice in China. It is raised that, at the beginning of the filling operation or when it is nearly fully filled, the undulating change of the field should be one of the reasons which may cause incentive ESD.