火炸药学报2024，Vol.47Issue(11)：1016-1021,6.DOI:10.14077/j.issn.1007-7812.202403021
微米级煤粉水浊液制备粒状铵油炸药的试验研究
Experimental Study on the Preparation of Porous Ammonium Nitrate Emulsion Explosive using Micro-meter Coal Powder Water Slurry
摘要
Abstract
To reduce the material cost and improve the stability and safety,the porous granular ammonium nitrate and fuel oil(ANFO)explosive was prepared by partially or fully substitution of a mixture of micro-meter coal powder and water(the vol-ume ratio of coal powder and water slurry is 1∶1)for diesel oil.Through experimental testing,the optimal formula with the maximum detonation velocity was obtained.The friction sensitivity of the emulsion explosive was studied using a friction sensi-tivity tester,and the effect of coal powder on the thermal decomposition reaction of porous granular ANFO explosive was stud-ied using a C80 micro-thermal analyzer.The kinetics and thermodynamics parameters of thermal decomposition reaction for dif-ferent samples were calculated using Arrhenius equation based on the thermal flow curve data.Results show that the explosive prepared with a mixture of 10％coal powder water slurry and 2％diesel oil has the highest detonation velocity of 3 227m/s.The friction sensitivity of the explosive is the highest,with a maximum probability of ignition of 4％.The coal powder water slurry inhibits the thermal decomposition reaction of porous granular ANFO explosive.The apparent activation energy,pre-exponen-tial factor,and initial decomposition temperature of the explosive prepared with the coal powder water slurry are higher than those of the pure diesel oil porous granular ANFO explosive.The new-made explosive prepared by partially or fully substitution of the coal powder water slurry for diesel oil has better thermal stability.关键词
物理化学/工业炸药/多孔粒状铵油炸药/煤粉水浊液/爆炸安全性/热稳定性Key words
physical chemistry/industrial explosive/porous granular ANFO explosive/coal powder water slurry/explosion safety/thermal stability分类
军事科技引用本文复制引用
汪泉,张家宝,杜善周,李玉清,叶涛,董晖,李瑞,徐小猛,曹英建..微米级煤粉水浊液制备粒状铵油炸药的试验研究[J].火炸药学报,2024,47(11):1016-1021,6.基金项目
国家自然科学基金(No.11872002) （No.11872002）
安徽省高等学校科学研究项目(No.2023AH051221) （No.2023AH051221）
