某铅锌矿回采方案改造研究  

Study on Stoping Improvement of one Lead-zinc Ore

作　　者：刘大荣 LIU Da-rong(Yunnan Gold&Mineral Group Co.,Ltd.,Kunming,Yunnan 650220,China)

机构地区：[1]云南黄金矿业集团股份有限公司,云南昆明650220

出　　处：《云南冶金》2022年第2期23-26,共4页Yunnan Metallurgy

摘　　要：为了提高某铅锌矿主矿体资源的统合回收利用,对采矿方法进行了改造,采用上向分层+进路式充填法回采方案:矿块内自下而上分层开采,分层内先采用进路式回采靠上盘方向3 m厚资源,并对进路进行高配比尾砂胶结充填,再回采分层内其余资源并采用低配比尾砂胶结充填。解决了顶板不稳固对开采带来的安全威胁,资源综合回收率提高了41.4%。Stoping improvement was carried out in order to increase the unified recycling utilization of main orebody resources of lead-zinc ore,therefore the stoping scheme that upward slicing+drift filling method was adopted:the exploitation inside the ore blocks was carried out from the bottom to the top,drift stoping was adopted inside the ore layer,which is in the direction of upper disc of 3 m thick resources,and high ratio tailings backfilling was carried out for mining approach,finally,the other resources inside the layer was stoped with low ratio tailings backfilling.Therefore,the security threat brought by unstable roof can be resolved,and the comprehensive recovery of resources was improved by 41.4%.

关 键 词：急倾斜 采矿方法 分层充填 进路式充填 

分 类 号：TD802[矿业工程—矿山开采]