耐热型铵油炸药露天煤矿火区爆破试验及分析  

Blasting Test and Analysis of Heat Resistant ANFO Explosives in High Temperature Overburdens of Open Coal Mine

作　　者：郭子如[1] 方琦 段晓兵 宋家旺 王洋[1] 高中国 霍毅超 何志伟[1] 李洪伟[1] GUO Ziru;FANG Qi;DUAN Xiaobing;SONG Jiawang;WANG Yang;GAO Zhongguo;HUO Yichao;HE Zhiwei;LI Hongwei(School of chemical engineering,Anhui University of Science and Technology,Huainan 232001,Anhui,China;Kinergy Blasting Engineering Company,Eerduosi 017205,Inner Mongolia,China;Keda chemical Company of Yahua Corp.,Baotou 014070,Inner Mongolia,China)

机构地区：[1]安徽理工大学化学工程学院,安徽淮南232001 [2]内蒙古康宁爆破有限公司,内蒙古鄂尔多斯017205 [3]雅化集团内蒙古柯达化工有限公司,内蒙古包头014070

出　　处：《煤矿爆破》2019年第5期1-3,12,共4页Coal Mine Blasting

摘　　要：由于煤炭的自燃,造成某些露天煤矿开采中部分煤层上方岩石覆盖层处于高温状态,在此区域进行的爆破剥离属于高温爆破,俗称火区爆破。为提高露天煤矿火区爆破的安全性和效率,采用耐热型铵油炸药在火区爆破现场进行了对比试验。结果表明:在炮孔温度为80~150℃的范围,耐热型铵油炸药的爆炸性能良好,接近普通铵油炸药,可以满足火区岩石爆破的能量需要,并直接装填炮孔,不需要隔热或降温,减少了隔热防护的费用,提高了爆破效率和安全。The temperature of overburdens above the coal bed is high in some overcast coal mine due to last coal combustion spontaneously.Blasting operation in these overburdens stripping is high temperature blasting,which is colloquially called“fire zone blasting”.A heat resistant ANFO(mixture of ammonium nitrate prill and fuel oil)explosives was developed and applied to high temperature blasting as a blasting test to improve the blasting safety and efficiency.It is showed that when the borehole temperature is in the range of 80~150℃,the explosion properties of the heat resistant ANFO are good and similar to the traditional ANFO,which meets the demand of overburdens stripping blasting.The heat resistant ANFO was directly charged in hot boreholes without doing heat insulation or borehole cooling,which lowers the blasting costs and improves the blasting safety and efficiency.

关 键 词：露天煤矿 爆破 高温炮孔 铵油炸药 

分 类 号：TQ560[化学工程—炸药化工]