Analysis Method of Acceptable Safety Degree on Polyethylene Dust Conveying System

Journal of Petrochemical Universities ›› 2010, Vol. 23 ›› Issue (2): 72-75.

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Analysis Method of Acceptable Safety Degree on Polyethylene Dust Conveying System

College of Chemistry and Chemical Engineering, China University of Petroleum (Huadong), Qingdao Shandong 266555,P.R. China

Received:2009-08-31 Published:2010-06-25 Online:2010-06-25

聚乙烯粉体输送系统安全可接受程度分析方法

刘义,赵东风,路帅,尹法波,张林

中国石油大学(华东)化学化工学院, 山东青岛266555

作者简介:刘义(1977 -), 男, 河北沧县, 副教授, 博士
基金资助:
中国石油“ 十一五” 科技攻关项目(2006AZ-JS -07)

Abstract

Abstract:

The hazard of polyethylene dust during conveying process was analyzed in different aspects. Based on the necessary conditions of polyethylene dust explosion, the analysis method of acceptable safety degree during the process of polyethylene dust conveying was put forward. The method consists of five steps, which is concentration test of hydrocarbon gas, minimum ignition energy test of the polyethylene dust, minimum ignition energy calculation of the hybrid combustible gas and polyethylene dust, comparing the minimum ignition energy of the hybrid and electrostatic discharge and effectiveness assessment on existing safety measures. The method can be also used to assess the hazard of other poly-olefin dust, determine its hazard extent and provide some effective countermeasures, which can solve the poly-olefin dust explosion problem that puzzles the petrochemical industry for many years.

Key words:

Polyethylene, , Dust, , Explosion, , Electrostatic discharge

摘要： 以聚乙烯输送系统为研究对象, 从不同角度系统地分析了输送系统的危险性。基于导致聚乙烯输送
系统爆炸的必要条件, 提出了聚乙烯粉体在输送过程的安全可接受程度分析方法。该方法包括聚乙烯输送过程中
烃类气体含量的测定、聚乙烯粉体最小点火能量的测定、聚乙烯粉体与可燃性气体混合物最小点火能量的计算、静
电放电能量和聚乙烯粉体与可燃性气体混合物最小点火能量的比较和现有安全措施的有效性分析5 个步骤。该方
法也可用于评估其它聚烯烃粉料输送系统的危险性, 进而确定其相应的危险程度, 提出有效预防措施, 从而解决困
扰石化行业多年的聚烯烃闪爆问题。

关键词: 聚乙烯 , 粉尘 , 爆炸 , 静电放电

LIU Yi, ZHAO Dong-feng, LU Shuai, et al. Analysis Method of Acceptable Safety Degree on Polyethylene Dust Conveying System[J]. Journal of Petrochemical Universities, 2010, 23(2): 72-75.

刘义,赵东风,路帅. 聚乙烯粉体输送系统安全可接受程度分析方法[J]. 石油化工高等学校学报, 2010, 23(2): 72-75.

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Analysis Method of Acceptable Safety Degree on Polyethylene Dust Conveying System

聚乙烯粉体输送系统安全可接受程度分析方法

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