Influence of Gassing Agent and Density on Detonation Velocity of Bulk Emulsion Explosives

被引：8
|
作者：
Mishra, Arvind Kumar [1 ]
Rout, Manamohan [2 ]
Singh, Deepanshu Ranjan [1 ]
Jana, Sakti Pada [3 ]
机构：
[1] Indian Sch Mines, Dept Min Engn, Dhanbad 826004, Jharkhand, India
[2] Eastern Coalfield Ltd, Sarpi Mines, Durgapur 713363, W Bengal, India
[3] IDL Explos Ltd, Kolkata 700071, W Bengal, India
来源：
GEOTECHNICAL AND GEOLOGICAL ENGINEERING | 2018年 / 36卷 / 01期
关键词：
Emulsion explosives; Gassing kinetics; Explosive performance; Velocity of detonation; Bulk explosive; Gassing agent;
D O I：
10.1007/s10706-017-0308-7
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
The demand for coal from surface mining projects are on the higher side like never before for which blasting is the basic unit operation. The explosive plays an important role in blasting and also influence the explosive-rock interaction. The most common explosive type used in surface mines is emulsion explosives. This paper presents the study on the detonation velocity of bulk emulsion explosives due to variation in gassing agent and density. In this study Sodium Nitrite (NaNO2) has been used as the gas generating additive and the performance of emulsion explosives with different concentrations of gassing agents at different temperatures has been observed. This study was undertaken to also understand the cyclic variation of temperature on gassing kinetics and performance of explosive. The effect of cooling on detonic-behaviour of bulk emulsion explosives has also been studied and presented in this paper.
引用
收藏
页码：89 / 94
页数：6
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