缓倾斜极薄矿脉定向抛掷爆破技术试验研究  

Experimental study on directional throwing blasting technology for gently inclined ultra-thin mineral veins

作　　者：孙庆和 SUN Qing-he(Hebei Chongli Zijin Mining Co.,Ltd,Zhangjiakou 075000,China)

机构地区：[1]河北崇礼紫金矿业有限责任公司,河北张家口075000

出　　处：《世界有色金属》2024年第17期208-210,共3页World Nonferrous Metals

摘　　要：对于缓倾斜极薄矿脉采用壁式削壁充填采矿法开采,最重要的回采工艺是充填工艺,其直接影响充填质量和矿块生产能力,仅靠机械或人工进行空区充填,也很难达到回采工艺的要求。采用定向抛掷爆破技术,将削壁围岩抛掷到采空区内,通过爆力将废石充填料充填到位,同时使充填料充填接顶密实,从而达到充填质量的要求,降低工人劳动强度,提高劳动生产率,是解决缓倾斜极薄矿脉开采的主要技术关键之一,整个壁式削壁充填采矿法的凿岩爆破工艺,都围绕着定向抛掷爆破技术来进行,使其达到理想的技术效果。For the mining of gently inclined and extremely thin ore veins using the wall cutting and filling mining method,the most important backfilling process is the filling process,which directly affects the quality of backfilling and the production capacity of ore blocks.It is also difficult to meet the requirements of backfilling process solely by mechanical or manual filling of empty areas.The use of directional throwing blasting technology to throw the wall cutting surrounding rock into the goaf,fill the waste rock filling material in place through blasting force,and make the filling material tightly connected to the top,thus achieving the requirements of filling quality,reducing labor intensity of workers,and improving labor productivity,is one of the main technical keys to solve the mining of gently inclined and extremely thin mineral veins.The rock drilling and blasting process of the entire wall cutting and filling mining method revolves around directional throwing blasting technology to achieve the desired technical effect.

关 键 词：倾斜薄矿脉 削壁充填 定向抛掷爆破 试验研究 

分 类 号：TD85[矿业工程—金属矿开采]