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滇东南金矿地处滇、黔、桂“金三角”矿集区,区域地质构造控制作用十分明显,按粒度、容矿围岩和含金建造等可划分为基性火山岩建造类微细粒型金矿、沉积岩建造类微细粒浸染型金矿和红色粘土型金矿三个类型。不同类型金矿产出形态、产出构造部位、容矿围岩、蚀变等特征均不相同。实验室柱浸试验结果表明,矿石类型、矿石粒度、氰化物浓度、喷淋强度及助浸剂等是影响矿石浸出率的主要因素,生产过程中选择合适的参数,可有效提高金矿堆浸的浸出速度,缩短堆浸的浸出周期,为金矿合理快速开发提供了理论依据。
The gold deposits in southeast Yunnan are located in the ore-gathering areas of Yunnan, Guizhou and Guangxi in the “Golden Triangle”, and the control of regional geological structures is very obvious. According to the grain size, the ore-bearing wall rocks and the gold-bearing structures, fine gold particles can be classified into basic volcanic rocks Type gold deposits, sedimentary rock-type micro-disseminated gold mine and red clay-type gold mine three types. Different types of gold output patterns, output tectonic positions, ore-bearing rocks, alteration and other characteristics are not the same. Laboratory column leaching test results show that the type of ore, ore size, cyanide concentration, spray strength and additives is the main factor affecting the leaching rate of ore, the production process, select the appropriate parameters, which can effectively improve the gold heap leaching Leaching rate and shortening leaching period of heap leaching, which provides a theoretical basis for the reasonable and rapid development of gold mines.