摘要：以聚乙烯生产工艺爆炸风险评价、聚乙烯粉尘爆炸特征参数、聚乙烯粉尘爆炸灾害动力学传播规律、聚乙烯粉尘与可燃气体杂混物爆炸机理、聚乙烯粉尘防爆控爆技术为主线, 综述了国内外聚乙烯粉尘爆炸的研究现状, 归纳各方面研究所存在的不足之处;指出未来聚乙烯粉尘爆炸研究发展的5个方向:1) 对不同种类聚乙烯粉尘爆炸特性开展比较研究;2) 建立可定量预测爆炸特征参数的工程模型;3) 深入剖析可燃气体对粉尘爆炸的影响机制及规律;4) 运用系统安全分析等方法进一步深入、定量地研究粉尘爆炸风险;5) 加强对聚乙烯粉尘爆炸灾害衍化动力学规律及其有效控制技术的研究, 为聚乙烯生产工艺安全的深入研究和事故防控提供理论依据和实际指导。

关键词：聚乙烯；粉尘爆炸；爆炸灾害；事故预防控制

Abstract：Recent advances in polyethylene dust explosion at home and abroad were reviewed and existing problems in researches about the polyethylene dust explosion were concluded, based on risk assessment of polyethylene production process, characteristic parameters of polyethylene dust explosion, the dynamics of damage caused by polyethylene dust explosion, explosion mechanism for the mixture of polyethylene dust and combustible gas, and explosion-proof and controlled explosion technique for polyethylene dust. Furthermore, some prospects concerning polyethylene dust explosion were presented as follows:1) comparative studies between different kinds of polyethylene dust explosion deserve to be carried; 2) the engineering models which can quantitatively predict the characteristic parameter of the explosion should be established; 3) the mechanisms and laws of dust explosion affected by combustible gas need to be investigated in depth; 4) the dust explosion risks can be evaluated further and quantitatively by means of systematic safety analysis and so on; 5) more efforts should be paid to research the dynamics and effective controlling of the polyethylene dust explosion. These will provide theoretical basis and practical guidance for intense research and accident prevention of security during the polyethylene production process.

Keywords：polyethylene；dust explosion；explosion disaster；accident prevention and control