Cause analysis of spontaneous combustion in an ammonium nitrate emulsion explosive

被引：11

作者：

Xu, Sen ^{[1
,2
]}

Tan, Liu ^{[1
]}

Liu, Jing-ping ^{[1
,2
]}

Chen, Xiang ^{[3
]}

Jiang, Wei ^{[1
]}

Chen, Yuan ^{[1
]}

Liu, Da-bin ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Sch Chem Engn, Nanjing 210094, Jiangsu, Peoples R China

[2] Natl Qual Supervis & Inspect Ctr Ind Explos Mat, Nanjing 210094, Jiangsu, Peoples R China

[3] Shanghai Entry Exit Inspect & Quarantine Bur, Shanghai 200135, Peoples R China

来源：

JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES | 2016年 / 43卷

基金：

中国国家自然科学基金;

关键词：

Ammonium nitrate; Emulsion explosive; Accident; Thermal runaway; Sodium nitrite; THERMAL HAZARD; CALORIMETRY; DETONATION;

D O I：

10.1016/j.jlp.2016.05.010

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Emulsion explosives (EE) have been widely used in the mining industry for their comparatively high detonation performance and exceptionally good safety characteristics. However, an accidental spontaneous burning of an emulsion explosive occurred in March 24, 2014. The investigation of the accident showed that the reaction between crystalloid sodium nitrite and ammonium nitrate (AN) was likely the cause of the spontaneous burning. To investigate the stability of the EE mixed with crystalloid sodium nitrite, AN, crystalloid Sodium nitrite, and EE, were analyzed by differential scanning calorimeter (DSC), accelerating rate calorimeter (ARC) and Dewar test. The results indicated that crystalloid sodium nitrite could decrease the onset decomposition temperature of AN and EE and the induced thermal runaway is the reason for the accident. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：181 / 188

页数：8

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