爆破器材2012，Vol.41Issue(3)：16-18,3.
石松子粉粉尘爆炸试验研究
Experimental Research on Lycopodium Dust Explosion
秋珊珊 1曹卫国 2黄丽媛 1张建新 1潘峰2
作者信息
- 1. 南京理工大学化工学院 江苏南京 210094
- 2. 国家民用爆破器材质量监督检验中心 江苏南京 210094
- 折叠
摘要
Abstract
In order to investigate the explosion characteristics in terms of the lower explosion limit, the explosion pressure and the explosion index with the variability of the dust concentration of the lycopodium with grain size less than 75 μm, the dust explosion was experimentally studied using a 20 L sphere explosion test unit. The results showed that the lower explosion limit of lycopodium was in the range of 20 -40 g/m3. On one hand, the dust explosion pressure and the explosion index increased significantly with the dust concentration when the concentration was in the relative low range 60 -500 g/m3, in which the maximum explosion pressure of 0.69 Mpa and the maximum explosion index of 17.20 Mpa · m/s were obtained when the concentration reached 500 g/m3. On the other hand, the concentration higher than 500 g/m3 had no impact on these two values. Furthermore, both of the values decreased slightly but still stayed at the relatively high level. Accordingly the classification of lycopodium dust explosion hazard is rated to Level I.关键词
石松子粉/粉尘爆炸/爆炸下限浓度/最大爆炸压力/爆炸指数Key words
lycopodium/ dust explosion/ lower explosive limit/ maximum explosion pressure/ explosion index分类
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秋珊珊,曹卫国,黄丽媛,张建新,潘峰..石松子粉粉尘爆炸试验研究[J].爆破器材,2012,41(3):16-18,3.
