摘要
在模拟硝酸铵(AN)的生产工艺流程中加入防爆添加剂制成防爆AN,按照工业炸药配方制成铵油炸药,并用8#雷管起爆,实验表明该防爆AN失去了爆炸性。用加速量热仪研究了AN和防爆AN的绝热分解过程,得到了绝热分解温度与压力随时间的变化、自加热速率与分解压力随温度的变化曲线,计算了分解动力学参数表观活化能和指前因子。据此分析了防爆AN的安全性,表明它具有良好的热稳定性;同时也表明防爆AN热稳定性的提高是爆炸特性得以消除的原因。。
Anti-explosive ammonium nitrate(AEAN) was prepared by adding anti-explosive additives in the course of modeling manufacture process flowsheet of ammonium nitrate, then formulated according to an industrial explosive formula into ammonium nitrate fuel oil (ANFO), and detonated by the No.8 detonator. The experimental results show that the explosive characteristic of AEAN was eliminated. The adiabatic decompositions of AN and AEAN were investigated by an accelerating rate calorimeter (ARC). The curves of thermal decomposition temperature and pressure versus time, self-heating rate and pressure versus temperature for two systems were obtained. The kinetic parameters such as apparent activation energy and pre-exponential factor were calculated. The safety of AEAN was analyzed. It was indicated that AEAN has better thermal stability. The elimination of AEAN explosive characteristic is due to the improvement on its thermal stability.
出处
《火炸药学报》
EI
CAS
CSCD
2004年第2期73-76,共4页
Chinese Journal of Explosives & Propellants
关键词
防爆硝酸铵
加速量热法
绝热分解
热稳定性
anti-explosive ammonium nitrate
accelerating rate calorimeter
adiabatic decomposition
thermal stability
