基于PDCA循环的高温爆破技术  

Technology of high temperature blasting based on PDCA cycle

作　　者：谢钱斌 XIE Qian-bin(Hongda Blasting Engineering Group Co.,Ltd.,Guangzhou 510623,China)

机构地区：[1]宏大爆破工程集团有限责任公司,广州510623

出　　处：《工程爆破》2021年第2期125-129,共5页Engineering Blasting

基　　金：广东省产学研合作院士工作站资助项目(2013B090400026)。

摘　　要：为确保在高温火区安全爆破的前提下,进一步增加高温火区爆破作业规模,稳步提升露天煤矿岩石剥离作业进度,结合宁夏大石头露天煤矿爆破现状,针对降温效果、孔内积水、炸药选择等进行深入研究。将PDCA循环安全管理与布孔钻孔、信息化测温、炮孔降温等进行有效结合,准确掌握了高温区分布情况,制定合理的降温方案;并针对裂隙区炮孔升温反弹等现象研究制作高温隔热护套,对炸药和起爆器材进行绝热保温,并在实践过程中使用反程序高温爆破,实现了高温火区安全高效爆破。实践证明,基于PDCA循环的高温爆破技术安全可靠,成本低,效率高,可在今后类似工程中推广应用。In order to further increase the blasting scale in high-temperature fire areas under the premise of safe blasting in high-temperature fire areas and steadily improve rock stripping in open-pit coal mines under a promise of safety,this paper combined with the current blasting situation in Ningxia Dashitou open-pit coal mine,conducted a deep research on the cooling effect,the water accumulation in holes,and the choice of explosives.It combined the PDCA cycle safety management with hole design and drilling,information-based temperature measurement,and blasthole cooling,etc.The distribution of high-temperature areas is grasped accurately,and a reasonable cooling plan is formulated.For the phenomenon of blasthole heating and rebound in the fissure area,a high-temperature insulation sheath was made to insulate explosives and initiating equipment.During the operation,reverse program was used to achieve safe and efficient blasting in high-temperature fire areas.The practice has proved that the high-temperature blasting technology based on the PDCA cycle is safe and reliable,with low cost and high efficiency,and can be popularized and applied in similar programs in the future.

关 键 词：PDCA循环 高温火区 高温爆破 隔热护套 炮孔降温 

分 类 号：TD235.3[矿业工程—矿井建设]