玉米淀粉粉尘爆炸的正交试验研究  

Orthogonal experiment study on explosion characteristic of corn starch dust

作　　者：周洪文[1] 赵飞[1] ZHOU Hong-wen ZHAO Fei(College of Resource and Environment Engineering, Wu han University of Technology, Hubei Wuhan 430070, Chin)

机构地区：[1]武汉理工大学资源与环境学院,湖北武汉430070

出　　处：《消防科学与技术》2016年第10期1368-1371,共4页Fire Science and Technology

基　　金：国家自然科学基金项目"典型工业粉尘爆炸火焰微观结构特性及灾变演化机理"(51174153);国家自然科学基金项目"纳米粉体对工业粉尘爆炸火焰及流场灾变行为的抑制机理"(51374164)

摘　　要：为了探明粉尘浓度、点火能量和惰性介质添加量对玉米淀粉粉尘爆炸特性参数的影响,利用20L球形爆炸装置进行试验测试,运用正交试验方法进行研究分析。结果表明:点火能量对粉尘最大爆炸压力的影响作用最显著;粉尘浓度对于最大升压速率的影响作用最显著;随着粉尘浓度的增加,粉尘最大爆炸压力不断上升,而最大升压速率先增大后减小;随着点火能量的增加,粉尘最大爆炸压力和最大升压速率呈线性上升;在高浓度下,粉尘爆炸压力受点火能量影响更显著;添加碳酸钙能够降低玉米淀粉的爆炸压力。In order to investigate the influence of dust concentration,ignition energy and additive amount of inert media on explosion characteristic parameters of corn starch dust,systematic experiments were carried out in the Siwek 20-L sphere,and orthogonal exp eriment method was conducted.The results showed that influence of ignition energy on the maximum explosion pressure is the most significant;the influence of dust concentration on maximum pressure rise rate is more significant;with the increase of dust concentration,the maximum explosion pressure increases constantly,and the maximum pressure rise rate first increases then decreases;with the increase of ignition energy,the maximum explosion pressure and the maximum pressure rise rate rise linearly;influence of ignition energy on dust explosion pressure is more significant at high concentration;addition of calcium carbonate can reduce explosion pressure of corn starch.

关 键 词：粉尘爆炸 正交试验 粉尘浓度 点火能量 惰性介质 

分 类 号：X932[环境科学与工程—安全科学] S513[农业科学—作物学]