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钻井沟金矿主要的矿石类型为含金多金属硫化物石英脉和含金白云母石英岩,矿石结构以粒状晶结构、碎裂结构和包含结构为主;构造主要为块状构造和浸染状构造。金矿物为自然金,以裂隙金为主,少量包裹金,金矿物以中粗粒金为主,载金矿物为黄铁矿、黄铜矿和石英。矿石中金的品位高,赋存状态简单,有害元素砷、锑、硫、碳等的含量低,属易浸型矿石。采用浮选—氰化联合工艺流程,金的综合回收率可以到达99.24%。
The main ore types of the drilling gold mine are gold-bearing polymetallic sulfide quartz veins and gold-bearing muscovite quartzite. The ore structure is dominated by granular crystal structure, fragmentation structure and inclusion structure. The structures are mainly massive structure and disseminated structure. The gold minerals are natural gold, mainly fractured gold, a small amount of gold, the gold is mainly composed of medium-grained gold, and the gold-bearing minerals are pyrite, chalcopyrite and quartz. Ore high gold grade, the existence of a simple state, the harmful elements of arsenic, antimony, sulfur, carbon and other content is low, is easy to dipping ore. The flotation - cyanidation combined process, the comprehensive recovery of gold can reach 99.24%.