铝粉粒度对乳化炸药能量输出特性及热安定性的影响

doi:10.11949/j.issn.0438-1157.20161294

化工学报 ›› 2017, Vol. 68 ›› Issue (4): 1721-1727.DOI: 10.11949/j.issn.0438-1157.20161294

铝粉粒度对乳化炸药能量输出特性及热安定性的影响

龚悦¹, 汪旭光², 何杰³, 颜事龙³, 程扬帆³

1 安徽理工大学土木建筑学院, 安徽淮南 232001;
2 北京矿冶研究总院, 北京 100044;
3 安徽理工大学化学工程学院, 安徽淮南 232001

收稿日期:2016-09-18 修回日期:2016-11-28 出版日期:2017-04-05 发布日期:2017-04-05
通讯作者: 何杰
基金资助:
国家自然科学基金面上项目(51174183)；安徽省教育厅基金项目(KJ2015A074)；安徽省科技厅基金项目(1608085QA15)。

Influence of aluminum particle size on energy output characteristics and thermal stability of emulsion explosive

GONG Yue¹, WANG Xuguang², HE Jie³, YAN Shilong³, CHENG Yangfan³

1 School of Civil Engineering, Anhui University of Science and Technology, Huainan 232001 Anhui, China;
2 Beijing General Research Institute of Mining and Metallurgy, Beijing 100044, China;
3 School of Chemical Engineering, Anhui University of Science and Technology, Huainan 232001 Anhui, China

Received:2016-09-18 Revised:2016-11-28 Online:2017-04-05 Published:2017-04-05
Supported by:
supported by the General Program of the National Natural Science Foundation of China (51174183).

摘要/Abstract

摘要：

为了研究铝粉粒度对乳化炸药水下爆炸能量输出的影响，在相同乳化炸药中分别添加3种不同粒度的铝粉制得含铝乳化炸药。利用水下爆炸实验，获得冲击波压力时程曲线，经分析计算得到峰值压力、冲击波冲量、比冲击波能、比气泡能、总能量等水下爆炸能量参数。并运用DSC-TG联用技术测试添加不同粒度铝粉的乳化炸药在不同升温速率下的热安定性。结果表明：铝粉粒度对乳化炸药水下爆炸的能量有较大的影响，添加了中粒度（平均粒度为177.2 μm）铝粉的乳化炸药各能量参数均达到最大值，而3组样品的热安定性则随着铝粉粒度的减小而降低，活化能的最大降幅达3.7%。

关键词: 铝粉, 粒度, 乳化炸药, 爆炸, 能量, 活化能

Abstract:

In order to study the influence of aluminum particle size on underwater explosion energy output of emulsion explosive, three kinds of aluminized emulsion explosives were prepared by mixing emulsion explosive with aluminum powder with different particle sizes, respectively. Pressure-time curves were determined by underwater explosion experiments, and underwater explosion energy parameters were obtained by analyzing the curves. The thermal stability of emulsion explosive which contained different particle sizes of aluminum powder were examined by means of DSC and TG methods at various heating rates. The results showed that the aluminum particle size had a great influence on underwater explosion energy of emulsion explosive. The underwater explosion energy output of emulsion explosive reached the maximum when the medium grain size aluminum powder (average particle size was 177.2 μm) was added, but the thermal stability of three samples reduced with the decrease of aluminum particle size. The biggest falling range of the activation energy was 3.7%.

Key words: aluminum powder, particle size, emulsion explosive, explosion, energy, activation energy

中图分类号:

TQ560.7
TJ55

龚悦, 汪旭光, 何杰, 颜事龙, 程扬帆. 铝粉粒度对乳化炸药能量输出特性及热安定性的影响[J]. 化工学报, 2017, 68(4): 1721-1727.

GONG Yue, WANG Xuguang, HE Jie, YAN Shilong, CHENG Yangfan. Influence of aluminum particle size on energy output characteristics and thermal stability of emulsion explosive[J]. CIESC Journal, 2017, 68(4): 1721-1727.

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铝粉粒度对乳化炸药能量输出特性及热安定性的影响

Influence of aluminum particle size on energy output characteristics and thermal stability of emulsion explosive

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