铝粉遇水燃烧爆炸危险性的实验研究  

Experimental study on risk of combustion and explosion of aluminum powder in water

作　　者：邢婧[1] 毕跃 崔瀚[1] Xing Jing;Bi Yue;Cui Han(School of Energy & Water Resources, Shenyang Institute of Technology, Fushun 113122, China;Public Engineering Design Office, Shenyang Aluminum & Magnesium Engineering & Research Institute Co.Ltd., Shenyang 110000, China)

机构地区：[1]沈阳工学院能源与水利学院,辽宁抚顺113122 [2]沈阳铝镁设计研究院有限公司公用工程室,沈阳110000

出　　处：《黑龙江科技大学学报》2022年第2期185-188,共4页Journal of Heilongjiang University of Science And Technology

摘　　要：为减少和避免铝粉生产、储存企业的火灾爆炸事故,研究了在常压、密闭的实验条件下,不同铝粉粒径、温度对铝粉、合金铝粉与水反应程度的影响。研究结果表明:铝粉粒径越小,比表面积越大,反应越剧烈;铝镁合金粉与水反应是先慢后快,当氢气冲破铝镁合金氧化膜后,反应速度极快,产生大量的氢气和热量。当铝粉被加热后与常温水也会产生剧烈反应,且氢气产生量易达到氢气的爆炸下限,从而引发爆炸事故。This paper aims to study reducing and avoiding fire explosion accidents which happen in aluminum powder production and in the storage enterprises.The study is focused on testing the effect of different particle size and temperature of aluminum powder on the reaction degree of aluminum powder and alloy aluminum powder mixed with water under normal pressure and airtight experimental conditions.The results show that the smaller the particle size is,the larger the specific surface area is,and the more violent the reaction is.The reaction of aluminum-magnesium alloy and water is slow at first,then fast,and along with the extremely fast speed,generates a large amount of hydrogen and heat as hydrogen breaking through the oxide film of aluminum-magnesium alloy.A violent reaction will occur when the heated aluminum powder is mixed with normal temperature water,and an explosion will happen caused by the hydrogen production reaching the lower limit of hydrogen explosion.

关 键 词：铝粉 燃烧 爆炸 氢气 

分 类 号：X932[环境科学与工程—安全科学] TG146.21[一般工业技术—材料科学与工程]