[1]夏良洪①,谭柳①,徐森①②,等.粒径对硝酸铵爆炸特性的影响[J].爆破器材,2015,44(02):32-35.[doi:10.3969/j.issn.1001-8352.2015.02.008]
　XIA Lianghong,TAN Liu,XU Sen,et al.Effects of Particle Size on the Explosibility of Ammonium Nitrate[J].EXPLOSIVE MATERIALS,2015,44(02):32-35.[doi:10.3969/j.issn.1001-8352.2015.02.008]
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粒径对硝酸铵爆炸特性的影响()
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《爆破器材》[ISSN:1001-8352/CN:32-1163/TJ]

卷:
44
期数:
2015年02
页码:
32-35
栏目:
基础理论
出版日期:
2015-04-20

文章信息/Info

Title:
Effects of Particle Size on the Explosibility of Ammonium Nitrate
文章编号:
4863
作者:
夏良洪①; 谭柳①; 徐森①②; 陈相③; 刘大斌①
①南京理工大学化工学院（江苏南京，210094） 
②国家民用爆破器材质量监督检验中心（江苏南京，210094） 
③上海出入境检验检疫局（上海，200135）
Author(s):
XIA Lianghong①;  TAN Liu①;  XU Sen①②;  CHEN Xiang③;  LIU Dabin①
①School of Chemical Engineering, Nanjing University of Science and Technology (Jiangsu Nanjing, 210094)
②National Quality Supervision and Inspection Center for Industrial Explosive Materials (Jiangsu Nanjing, 210094)
③Shanghai EntryExit Inspection and Quarantine Bureau (Shanghai, 200135)
关键词:
爆炸特性; 粒径; 爆速; 破坏效应; 扫描电镜; 装药密度
Keywords:
properties of explosive;  particle size;  detonation velocity;  destructive effect;  scanning electron microscope;  charge density
分类号:
TD235.2+1
DOI:
10.3969/j.issn.1001-8352.2015.02.008
文献标志码:
A
摘要:
为了研究粒径对硝酸铵爆炸特性的影响，采用联合国隔板试验装置，研究了不同粒径硝酸铵的爆速变化特性。结果表明：粒径为149~841μm的硝酸铵都发生了整体爆轰，但不同粒径硝酸铵的爆速和验证板的破坏效应各不相同；粒径范围为420~841 μm、250~420 μm、177~250 μm和149~177 μm的样品爆速分别为1 166、1 336、1 607和1 543 m/s，验证板的破坏效应分别为深5.40 cm的凹痕、直径为3.05、7.95和7.10 cm的穿孔；由爆速和验证板的破坏效应结果可以发现，在装药密度相同的条件下，硝酸铵粒径越小，爆速越高，破坏效应越剧烈；比较粒径范围为177~250 μm和149~177 μm样品的结果可知，当粒径为149~177 μm时，硝酸铵的装药密度明显降低，且样品爆速和破坏效应也相应降低，表明装药密度对硝酸铵爆炸特性有显著影响。
Abstract:
To study the effect of particle size on the explosibility of ammonium nitrate, the partition test device of United Nations was used to test the tendency of explosive velocity of ammonium nitrate with different particle sizes. The results show that ammonium nitrate with particle sizes of 149-841 μm can overall detonate, while the detonation velocity and damaging effects of witness plate will be different with the changes of particle sizes. When particle sizes of the samples were in the ranges of 420-841 μm, 250-420 μm, 177-250 μm and 149-177 μm, the detonation velocity were 1166, 1336, 1607m/s and 1543m/s. The damages of witness plate exhibit 5.4cmdeep dents, and 3.05cm, 7.95cm and 7.10 cmdiameter perforated. From the results of destructive effect of witness plate and detonation velocity, it could be found that with the same charge density, the smaller the ammonium nitrate particle size, the higher the detonation velocity and the severer damage effects. Comparison of samples shows that when particle size is 149-177 μm, the charge density of ammonium nitrate is lower, and the detonation velocity and destruction effects reduced accordingly, indicating that the charge density have significant effect on explosive properties of ammonium nitrate.

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备注/Memo

备注/Memo:
收稿日期：2014-09-09
基金项目：国家自然科学基金项目 (51174120)
作者简介：夏良洪（1989~），男，硕士研究生，主要从事硝酸铵改性研究。E-mail:xialh1021@126.com
通信作者：刘大斌（1963~），男，教授，博导，主要从事含能材料研究。E-mail：dabin63@vip.sina.com
更新日期/Last Update: 2015-04-15