主管：中华人民共和国应急管理部
主办：应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU
消防科学与技术

消防科学与技术 ›› 2022, Vol. 41 ›› Issue (3): 291-295.

• •    下一篇

三聚氰胺聚磷酸盐抑制聚丙烯粉尘爆炸研究

王 保1,2，江丙友1,2，苏明清3，杨炳辉1,2   

  1. （1.安徽理工大学 工业粉尘防控与职业安全健康教育部重点实验室，安徽 淮南 232001； 2.安徽理工大学 安全科学与工程学院，安徽 淮南 232000； 3.中国矿业大学（北京） 应急管理与安全工程学院，北京 100083）
  • 出版日期:2022-03-15 发布日期:2022-03-15
  • 作者简介:王 保（1996-），男，安徽蚌埠人，安徽理工大学安全科学与安全工程学院，硕士，主要研究方向为气体粉尘爆炸防治，安徽省淮南市田家庵区三和乡泰丰大街168号，232001。
  • 基金资助:
    国家自然科学基金面上项目（51874009，52074012）

Research on suppression of polypropylene dust explosion by melamine polyphosphate

WANG Bao1,2, JIANG Bing-you1,2, SU Ming-qing3, YANG Bing-hui1,2   

  1. （1. Key Laboratory of Industrial Dust Control and Occupational Health, Ministry of Education, Anhui University of Science and Technology, Anhui Huainan 232000, China; 2. School of Safety Science and Engineering, Anhui University of Science and Technology, Anhui Huainan 232001, China; 3. School of Emergency Management and Safety Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China）
  • Online:2022-03-15 Published:2022-03-15

摘要： 利用20 L 球形爆炸装置，试验研究了聚丙烯（PP）粉尘爆炸特性及三聚氰胺聚磷酸盐（MPP）对聚丙烯粉尘爆炸的抑制效果。结果表明，质量浓度为300 g/m3的聚丙烯粉尘爆炸强度最大，最大爆炸压力为0.746 MPa、最大爆炸压力上升速率为60.508 MPa/s、爆炸指数最大为16.398 MPa·m/s。随着MPP粉末质量分数的增加，聚丙烯粉尘爆炸的最大爆炸压力、最大爆炸压力上升速率、爆炸指数均不断下降。当混合物中MPP粉末的质量分数为70%时，质量浓度为300 g/m3的聚丙烯粉尘的爆炸被完全抑制。由热重分析可知MPP粉末的加入使得聚丙烯分解温度升高，热稳定性增强。结合热分析的测试结果，对MPP粉末的抑爆机理进行了探讨，分析表明MPP粉末具有物理抑制作用和化学抑制作用。

关键词: 粉尘爆炸；聚丙烯；三聚氰胺聚磷酸盐；抑制

Abstract: The explosive characteristics of polypropylene (PP) dust and the restraining effect of melamine polyphosphates (MPP) on polypropylene dust explosion were studied by using a 20 L spherical explosive device. The results show that the explosive strength of polypropylene dust with the mass concentration of 300 g/m3 is the highest, the maximum explosive pressure is 0.746 MPa, the maximum explosive pressure rising rate is 60.508 MPa/s, and the maximum explosive index is 16.398 MPa·m/s. With the increase of the mass fraction of MPP powder, the maximum explosion pressure, the rate of increase of the maximum explosion pressure and the explosion index of polypropylene dust decreased continuously. When the mass fraction of MPP powder in the mixture is 70%, the explosion of polypropylene dust with a mass concentration of 300 g/m3 is completely inhibited. Thermogravimetric analysis showed that the addition of MPP powder increased the decomposition temperature and thermal stability of polypropylene. Combined with the test results of thermal analysis, the explosive suppression mechanism of MPP powder was discussed, and the analysis showed that MPP powder had physical and chemical inhibition effects.

Key words: dust explosion; polypropylene; melamine polyphosphate; suppression