空气间隔装药技术在露天矿山的应用  

Application of air interval charging technology in Open-pit Mine

作　　者：王银涛 白和强 刘坚 刘宗海 周岳 丁言鑫 WANG Yintao;BAI Heqiang;LIU Jian;LIU Zonghai;ZHOU Yue;DING Yanxin(North Blasting Technology Co.,Ltd.,Beijing 100089,China;Shanxi Jiangyang Engineering Blasting Co.,Ltd.,Taiyuan 030041,China)

机构地区：[1]北方爆破科技有限公司,北京100089 [2]山西江阳工程爆破有限公司,山西太原030041

出　　处：《露天采矿技术》2021年第2期59-61,65,共4页Opencast Mining Technology

摘　　要：为解决露天矿山爆破施工过程中出现的炮区后冲现象对后续穿孔和爆破施工作业的负面影响,缅甸莱比塘露天铜矿采用在后排炮孔顶部放置不同长度PVC管空气间隔器的装药技术;爆破后对炮区后排炮孔的后拉裂距离、大块率及挖机铲装效率进行了现场采集数据综合分析。结果表明:PVC管空气间隔器长度为1.2 m时,爆破效果与质量不仅满足现场铲装需求,而且有效降低爆破成本。In order to solve the negative impact of blasting area recoil phenomenon on subsequent drilling and blasting operation in open-pit mine,the charging technology of placing PVC pipe air spacer with different length at the top of back blast hole is adopted in Lai Bi Tang open-pit copper mine of Myanmar.After blasting,the article comprehensively analyzes post splitting distance,block ratio and shovel loading efficiency of backholes in the blasting area.The results show that when the length of PVC pipe air spacer is 1.2 m,the blasting effect and quality can not only meet the demand of field loading,but also effectively reduce the blasting cost.

关 键 词：炮区后冲 间隔装药 空气间隔器 爆破效果 爆破成本 

分 类 号：TD824.2[矿业工程—煤矿开采]