含煤基固废漂珠低爆速乳化炸药的爆炸特性和热安全性

打开文本图片集

中图分类号：0389 国标学科代码：13035 文献标志码：A

Abstract： Inthis paper， the microspheres in flying-ash are used as sensitizerand inert additive to prepare the low detonation velocity emulsion explosives.The detonationvelocityandthe parameters of explosive shock wave in theairof emulsion explosiveswere measured bythe probe method，the lead columncompression methodandtheair explosion method， respectively.The safetyofemulsion explosives was testedbythestorage life experiment andthermal analysis experiment.The experimentalresultsshow that thedetonationvelocity，thebrisance，thepeak pressure，thepositiveimpulseandthe positive pressureactiontime ofshock wave ofemulsion explosives increased firstandthendecreased withthe increase ofthe contentof flying-ash microspheres. When the content of flying-ash microspheres was 1 5 % ， the detonation performance of emulsion explosive was the best， and when the content of flying-ash microsphereswas 45 % ，thedetonation velocity of the explosive decreasedobviously.Meanwhile， the detonationvelocityranged from2191to 2 3 1 2 m / s ，which can satisfythe condition of using explosiveforexplosive welding.In adition， it is found thatthedetonation performanceofemulsion explosives with

flying-ash microspheres was higher than those of flying-ash microspheres with and .The storage lifeandtermalanalysisresults indicatethatthe storage lifeoflowdetonationvelocityemulsionexplosives with flying-ash microspheres issignificantly beter than thatoftraditional low detonation velocity emulsion explosive with clay particles，the activation energy of thermal decomposition of the emulsion explosive with 1 5 % flying-ash microsphereswas only 0 . 3 % higher than that ofemulsion matrix.Theresultsalsoshowthattheadditionofflying-ash microspheres has noobvious effectonthe thermal stabilityofthe emulsion matrix.The research results have important reference value for gren resource disposal of coal-based solid waste and formulation design of the low detonation velocity emulsion explosive.

Keywords：emulsion explosives;coal-basedsolid waste;flyashmicrospheres; explosive welding;lowdetonation velocity explosives

乳化炸药是一种油包水型工业炸药，拥有良好的爆炸性能和安全性，广泛应用于矿山开采和工程爆破等实际工程[1-6]。（剩余15674字）