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 ›› 2020, Vol. 39 ›› Issue (1): 31-34.

• • 上一篇    下一篇

碳酸钙、磷酸二氢氨与二氧化硅对面粉爆炸的抑制作用

马雪松，孟祥豹，肖琴，王俊峰，崔丽媛   

  1. 山东科技大学矿业与安全工程学院，山东青岛266590
  • 收稿日期:2019-09-07 出版日期:2020-01-15 发布日期:2020-09-17
  • 通讯作者: 孟祥豹，男，山东科技大学青岛校区矿业与安全工程学院学院讲师，博士。
  • 作者简介:马雪松（1994-），女，河北石家庄人，山东科技大学青岛校区矿业与安全工程学院硕士研究生，主要从事粉尘爆炸与抑爆研究，山东省青岛市黄岛区辛安街道前湾港路579 号，266590。
  • 基金资助:
    中国博士后科学基金资助项目（2018M632693）；山东省重点研发计划项目（2018GSF120016、2018GGX109004）

Inhibiting effect of calcium carbonate dihydroammonia phosphate and silicon dioxide on explosion of flour

MA Xue-song，MENG Xiang-bao，XIAO Qin，WANG Jun-feng，CUI Li-yuan   

  1. College of Mining and Safety Engineering, Shandong University of Science and Technology,Shandong Qingdao 266590,China
  • Received:2019-09-07 Online:2020-01-15 Published:2020-09-17

摘要： 以面粉为研究对象，采用20 L 爆炸球和哈特曼管测试系统，分别测试了碳酸钙、磷酸二氢氨、二氧化硅和碳酸钙与磷酸二氢氨复合对面粉最大爆炸压力、压力上升速率、火焰传播速度等特性参数的影响。对比分析了4 种惰性粉体的抑制效果及机理。结果表明：磷酸二氢氨除物理吸热外还通过化学分解抑制面粉燃烧和爆炸，其抑爆效果优于二氧化硅和碳酸钙；碳酸钙与磷酸二氢氨两者间会发生抑制燃烧爆炸的附加反应，二者复合比单一惰化粉体有更高的惰化效能。

关键词: 面粉爆炸, 碳酸钙, 磷酸二氢氨, 二氧化硅, 复合, 抑爆性能

Abstract: Taking flour as the research object,using 20 L ball and Hartmann tube explosion test system,the effects of calcium carbonate, ammonia dihydrogen phosphate, silica, and compound of calcium carbonate and ammonia dihydrogen phosphate on the maximum explosion pressure, pressure rise rate and flame propagation rate of flour were tested respectively.The inhibition effect and mechanism of 4 kinds of inert powders were compared and analyzed. The results showed that in addition to physical heat absorption,ammonium biphosphate also inhibits dust combustion and explosion by chemical decomposition,and its explosion suppression effect is better than that of silicon dioxide and calcium carbonate. There is additional reaction between calcium carbonate and ammonia dihydrogen phosphate which can inhibit combustion and explosion,and the composite of this two has higher inerting efficiency than the single inerting powder.

Key words: flour explosion, calcium carbonate, ammonium biphosphate, silica, compound, explosion suppression performance