Effect of Particle Size of Coal Dusts on Explosion Pressure and Rise Rate of Explosion Pressure

摘要：

The effect of particle size of coal dusts on explosion pressure and rise rates of explosion pressure is studied. Three coal dusts are selected to test data. They come from Lingan coal mine of Canada and Datong coal mine of China. By experiment, the influence of particle size on the maximum explosion pressure Pmax and maximum pressure rising rates (dp/dt)max of each coal was tested. Result indicated that along with the decrease of particle size of coal dusts, explosion pressure increase at the same concentration. For different concentration of each coal dust, the maximum explosion pressure appear at the concentration of 500 g/m3. The smaller the particle size of coal. dusts is, the more excessive of rise rate of explosion pressure of coal dusts. When concentration of cold dusts is 500 g/m3, rise rate of explosion pressure of each coal dust is maximal.

关键词： coal dust explosion pressure rise rate dust explosion particle size

作者: TAN Yingxin YU Cunjuan GAO Yun YUAN Hongsu

作者单位: School of Chemical Engineering and Environment,North University of China,Taiyuan 030051,Shanxi,China

会议类型: 国际会议

会议名称: The 2008 International Symposium on Safety Science and Technology(2008年安全科学技术国际会议)

会议地点: 北京

会议语种:英文

页码: 1010-1012

在线出版日期: 2008-09-24（万方平台首次上网日期，不代表论文的发表时间）