塑料科技2025，Vol.53Issue(2)：122-126,5.DOI:10.15925/j.cnki.issn1005-3360.2025.02.022
聚丙烯粉尘燃爆敏感特性研究
Research on Combustion and Explosion Sensitivity Characteristics of Polypropylene Dust
郑秋雨 1王金玉 1齐宇萱 2张岩3
作者信息
- 1. 沈阳航空航天大学安全工程学院,辽宁 沈阳 110136
- 2. 辽宁金发科技有限公司,辽宁 盘锦 124000
- 3. 沈阳市消防救援支队,辽宁 沈阳 110013
- 折叠
摘要
Abstract
During the production and processing of polypropylene,the fine dust generated is prone to combustion and explosion accidents.Targeting two typical ignition sources,electrical sparks and high-temperature surface objects,the study investigated the combustion sensitivity of suspended and accumulated polypropylene dust using a minimum ignition energy test apparatus for dust clouds,an electrostatic spark sensitivity tester,and a minimum ignition temperature test apparatus for dust clouds/layers.The results indicate that the minimum ignition energy of 10～13,18～23,25～38 μm polypropylene dust clouds is significantly lower than that of 48～75 μm dust clouds.The minimum ignition energy of polypropylene dust clouds shows a trend of first decreasing then increasing with the rise of dust concentration,powder injection pressure,and ignition delay time.In accumulated state,the minimum ignition energy gradually increases with particle size,indicating reduced electrostatic spark sensitivity.Under single-variable conditions,the minimum ignition temperature of polypropylene dust clouds displays inflection points with increasing particle size due to dust agglomeration phenomena.关键词
聚丙烯粉尘/粉尘爆炸/最小点火能/最低着火温度/静电火花感度Key words
Polypropylene dust/Dust explosion/Minimum ignition energy/Minimum ignition temperature/Electrostatic spark sensitivity分类
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郑秋雨,王金玉,齐宇萱,张岩..聚丙烯粉尘燃爆敏感特性研究[J].塑料科技,2025,53(2):122-126,5.
