酚醛树脂粉尘爆炸危险性实验研究  

Experimental Research on Hazard of Phenolic Resin Dust Explosion

作　　者：覃欣欣 李润之 司荣军 

机构地区：[1]中国煤炭科工集团重庆研究院有限公司,重庆400037

出　　处：《工业安全与环保》2015年第12期12-14,共3页Industrial Safety and Environmental Protection

基　　金：国家自然科学基金(51374235);中国煤炭科工集团有限公司科技创新基金资助项目(2014MS007)

摘　　要：针对工业生产中的酚醛树脂粉尘爆炸问题,运用20 L近球形粉尘爆炸特性测试系统,测试了常温常压条件下酚醛树脂粉尘的爆炸下限、最大爆炸压力和最大压力上升速率等爆炸特征参数,分析不同质量浓度与其之间的变化规律,并计算出相应爆炸指数,对爆炸危害等级进行分级。实验结果表明,酚醛树脂粉尘云的爆炸下限质量浓度为10~20 g/m^3;最大爆炸压力、最大压力上升速率和爆炸指数关系曲线变化趋势大致相同,均呈现先升高后降低的现象,并同在200 g/m^3时达到最大值,分别为0.664 MPa,82.5 MPa/s,22.4 MPa·m/s;其粉尘爆炸危害等级为S_(t2)。In view of the dust explosion problem of phenolic resin in industrial production,the explosion of characteristic parameters of the lower explosive limit,the maximum explosion pressure and maximum pressure rise rate at room temperature are investigated by using a 20 L sphere explosion test unit. Through experimental research,the different dust concentration and its change rule are analyzed,the corresponding explosion index is calculated and the risk degree of explosion is graded. The experimental result indicates that the lower explosive limit concentration of phenolic resin dust cloud is between 10 g/m3 and 20g/m3; the trend of relation curve about the maximum explosion pressure and maximum pressure rise rate and explosion index is roughly the same,it increases first,decreases later and reaches maximum at 200 g/m3,respectively following this order 0.664 MPa,82. 5 MPa/s and 22. 4 MPa·m/ s and the classification of dust explosion hazards is Level S（t2）.

关 键 词：酚醛树脂粉尘 爆炸下限 最大爆炸压力 最大压力上升速率 爆炸指数 

分 类 号：X932[环境科学与工程—安全科学]