西山石膏矿玉泉矿区采空区贫矿回收技术改造方案

摘要

西山石膏矿在过去采用房柱法开采过程中对采空区内的贫矿没有进行回收，造成了资源的浪费。通过技术改造，设计采用后退式回采方法，采用底板回采爆破、矿柱回采爆破、崩柱切顶爆破和矿石回收等技术，回收利用玉泉矿区的贫矿资源，变废为宝，提高资源回采率，保护环境，具有良好的经济和社会效益。%Room-and-pillar method which used in Xishan gypsum mine caused the waste of gypsum resources in the goaf. We designed to using the retreating stoping method to recover the lean mine resources. Stoping and blasting with the ore lfoor and the pillar, collapsing the pillar and cutting the roof, recover the lean gypsum resources of Yuquan mining area, make waste proiftable, improve the resources utilization rate, protect the environment and has a good economic and social beneifts.