| 微米级硅粉粉尘爆炸特性及抑爆试验研究 |
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| 引用本文： | 卫园梦,王庆慧,杨晓明,周玉峰.微米级硅粉粉尘爆炸特性及抑爆试验研究[J].消防科学与技术,2019(6):775-779. |
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| 作者姓名： | 卫园梦 王庆慧 杨晓明 周玉峰 |
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| 作者单位： | 东北石油大学机械科学与工程学院;黑龙江省大庆市安全生产监督管理局;中国石油天然气有限公司大庆炼化分公司 |
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| 摘 要： | 为了减少硅加工行业粉尘爆炸事故,以硅粉为试验对象,采用20 L球形爆炸测试系统,对硅粉的爆炸特性和不同影响因素对爆炸特性的影响进行研究,并选取两种惰性介质探究其对硅粉尘爆炸的抑制效果。试验结果表明:在一定质量浓度范围内,硅粉尘云的最大爆炸压力随质量浓度的升高先增大后减小。硅粉尘云的爆炸下限浓度为80~90 g/m^3,最大爆炸压力在粉尘质量浓度为750 g/m^3时达到峰值0.798 MPa,爆炸指数在500g/m^3时取得最大值40.72 MPa·m/s,且硅粉的爆炸危险性达St3级。NH4H2PO4对于硅粉尘爆炸的惰化效力较SiO2更强,且当其质量分数达80%时完全抑制硅粉发生爆炸。
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| 关 键 词： | 硅粉尘 爆炸下限 爆炸压力 爆炸指数 危险性分级 抑爆 |
Experimental study on explosion characteristics and explosion suppression of micron silicon dust |
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| WEI Yuan-meng,WANG Qing-hui,YANG Xiao-ming,ZHOU Yu-feng.Experimental study on explosion characteristics and explosion suppression of micron silicon dust[J].Fire Science and Technology,2019(6):775-779. |
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| Authors: | WEI Yuan-meng WANG Qing-hui YANG Xiao-ming ZHOU Yu-feng |
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| Affiliation: | (School of Mechanical Science and Engineering, Northeast Petroleum University, Heilongjiang Daqing 163318,China;Daqing Administration of Work Safety, Heilongjiang Daqing 163311, China;Daqing Refining and Chemical Branch of China National Petroleum Corporation, Heilongjiang Daqing 163411, China) |
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| Abstract: | WEI Yuan-meng;WANG Qing-hui;YANG Xiao-ming;ZHOU Yu-feng(School of Mechanical Science and Engineering, Northeast Petroleum University, Heilongjiang Daqing 163318,China;Daqing Administration of Work Safety, Heilongjiang Daqing 163311, China;Daqing Refining and Chemical Branch of China National Petroleum Corporation, Heilongjiang Daqing 163411, China) |
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| Keywords: | silicon dust lower explosive limit explosion pressure explosion index risk classification explosion suppression |
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