无底柱分段崩落法开采过程的机械化应用研究

Study on the Mechanization Application of Bottomless Column Segmental Crumbling Mining Process

在无底柱分段崩落法开采的井下矿山,其矿石开采和巷道掘进工序主要包括巷道掘进、爆破回采、浮石清理、二次破碎、巷道支护、溜井施工等,通常均需要大量人工现场作业。巷道掘进和回采工序作业人员长时间暴露在作业面下,劳动强度大、作业环境差,同时存在冒顶、片帮、设备打击等安全风险。蒙库铁矿在采掘作业循环中全面使用台车,利用先进采掘作业工艺实现机械化作业,提升作业本质化安全,改善作业环境,降低人员劳动强度。通过现场生产实践已形成了一条完整的安全、高效的机械化作业线,实现减人的目标。

In underground mines explored by the bottomless column segmented crumbling mining meth-od,the ore mining and roadway excavation processes mainly include roadway excavation,blasting and re-covery,pumice cleaning,secondary crushing,roadway support,shaft construction,etc.,which usually require a lot of manual on-site work.The operators of roadway digging and recovery process are exposed to the working surface for a long time,which is labor-intensive and has poor working environment,and there are safety risks such as roofing,flaking and equipment strike.Adopting advanced mining operation technology,the Mengku iron ore mine uses dollies in all aspects of the mining operation cycle to realize mechanized operation.This enhances the essential safety of operation,improves the operating environ-ment and reduces the labor intensity.Through on-site production practice,a complete,safe and efficient mechanized operation line has been formed to achieve the goal of reducing manpower.