两种乳化炸药基质耐热性研究  

Study on heat resistance of two kinds of emulsion explosive matrix

作　　者：杜宝强 郭子如[1] 王洋 方琦 刘峰[1] 何志伟[1] 吴俊浩 刘伟[1] 张金元 DU Baoqiang;GUO Ziru;WANG Yang;FANG Qi;LIU Feng;HE Zhiwei;WU Junhao;LIU Wei;ZHANG Jinyuan(School of Chemical Engineering,Anhui Unwersity of Science and Technology,Huainan 232001,China;Tongling Nonferrous Metals Group Co.,Ltd.,Tongling 244000,China;Anhui Hongxing Electromechanical Technology Co.,Ltd.,Hefei,230000,China)

机构地区：[1]安徽理工大学化学工程学院,安徽淮南232001 [2]铜陵有色金属集团股份有限公司,安徽铜陵244000 [3]安徽红星机电科技股份有限公司,安徽合肥230000

出　　处：《煤矿爆破》2021年第3期11-14,23,共5页Coal Mine Blasting

摘　　要：根据目前露天煤矿高温爆破使用工业炸药情况,探究高温炮孔中工业炸药的耐热性能,通过C80微量量热仪实验对普通型乳化炸药和耐热型乳化炸药进行试验得到热分解动力学参数,再通过模拟高温炮孔钢筒实验测量炸药受热后的温度变化进行验证。实验结果表明:耐热型乳化炸药(样品2#)比普通型乳化炸药(样品1#)具有更高的活化能,并且起始分解温度高了约20℃;模拟高温炮孔钢筒实验中,在100、150、200、250℃恒温环境下,样品2#比样品1#升温速率更慢,炸药的热分解延滞期更长,样品2#具有更明显的耐热效果。According to the current situation of industrial explosive used in high-temperature blasting in open-pit coal mines,the heat resistance of industrial explosive in high-temperature blastholes is explored.The thermal decomposition kinetic parameters of ordinary emulsion explosive and heat-resistant emulsion explosive are obtained through the C80microcalorimeter,and then the temperature change of the explosive after heating is verified by simulating the steel tube experiment on high-temperature blastholes.The experimental results show that the heat resistant emulsion explosive(sample 2;) has higher activation energy than the ordinary one (sample 1;),and the initial decomposition temperature is about 20℃higher.In the simulated high-temperature blasthole steel tube experiment,under the constant temperature environment of 100℃,150℃,200℃and 250℃,the heating rate of sample 2;is slower than that of sample 1;,and the thermal decomposition delay time is longer.Sample 2;has more obvious heat resistance effect.

关 键 词：高温炮孔 耐热性 乳化炸药 热分解 延滞期 

分 类 号：TQ560.71[化学工程—炸药化工]