粮食粉尘爆炸过程分析及泄爆面积的计算  

Analysis of Grain Dust Explosion Process and Calculation of Explosion Venting Area

作　　者：李恩科[1] 

机构地区：[1]唐山市环境监测中心站,河北唐山063000

出　　处：《工业安全与环保》2008年第3期33-35,共3页Industrial Safety and Environmental Protection

摘　　要：分析了粮食粉尘在密闭设备中的爆炸发展过程,引用了等温爆炸模型假设、燃烧产物质量变化速率、压力上升速率的概念及公式,在此基础上对泄爆面积的计算理论和方法进行了分析和归纳,利用爆炸指数K_(st)值诺谟图公式法和粉尘爆炸等级S_t诺谟图公式法对进口加拿大小麦在定容设备、斗式提升机及袋式除尘器储存输送过程中的泄爆面积进行了计算。Grain dust explosion process in airtight equipment is analyzed, in which some concepts and formulas are cited, such as hypothesis of model of uniform temperature, change velocity of mass of combustion production and ascending velocity of pressure. Based on these, the explosion venting area are calculated by using methods of Kst and St formula in fixed dimenstion equipment, elevator and hop - pocket dust catcher in Canada imported wheat transportation.

关 键 词：粮食粉尘 爆炸过程 泄爆面积 

分 类 号：X928.7[环境科学与工程—安全科学] S379[农业科学—农产品加工]