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为解决玲南金矿原有采矿方法回采作业安全性差、矿石损失贫化大、通风条件差等问题,设计采用盘区交错式上向水平分层充填采矿法作为该矿的主体采矿方法。该法将盘区内矿体划分为矿房矿柱分两步进行回采,矿房矿柱交错回采又同时向上推进。生产实践取得了采场综合生产能力105~120 t/d、矿石损失率5.8%、贫化率4.6%、采矿成本96.29元/t、充填成本32.95元/t的良好技术经济指标。
In order to solve the problems of poor safety of mining operations, poor depletion of ores and poor ventilation conditions in the original mining method of Lingnan Gold Mine, a staggered horizontal plate-loading mining method was adopted as the main mining method for this mine. This method divides the ore bodies in the panel area into ore pillars in two steps for mining, and the pillars of ore pillars are interlaced and pumped up at the same time. Production practice has achieved a comprehensive technical capacity of 105 ~ 120 t / d stope, ore loss rate of 5.8%, 4.6% depletion rate, mining costs 96.29 yuan / t, filling costs 32.95 yuan / t a good technical and economic indicators.