九江城门山铜矿尾矿综合回收利用试验研究

Experimental Study on Comprehensive Recovery and Utilization of Tailings at Chengmenshan Copper Mine in Jiujiang

城门山铜矿毗邻赛城湖区,年产尾矿约250万t,随着国家环保要求的提高,现有的刘家沟尾矿库库容使用年限将至,积极开发尾矿综合利用技术,对提高效益、改善生存环境和矿山可持续发展都具有重要的意义。城门山铜矿尾矿在含硫2.27%左右的情况下,经过“一粗两扫三精”实验室闭路浮选流程,可以得到35.57%的标硫精矿,整体回收率为94.20%,可实现资源的回收利用,且最终尾矿含硫0.14%左右,能满足最终尾矿的综合利用要求,进而实现无尾矿排放。

Chengmenshan Copper Mine is adjacent to Saichenghu District,with an annual tailings output of about 2.5 million tons.With the improvement of national environmental protection requirements,the existing Liujiagou tailing pond capacity is coming to an end.It is of great significance to actively develop the comprehensive utilization technology of tailings for raising the benefit,improving the living environment and sustainable development of the mine.When the sulfur content in the tailings of Chengmenshan Copper Mine is about 2.27%,35.57%of the standard sulfur concentrate can be obtained through the laboratory closed-circuit flotation process.The overall recovery rate is 94.20%,which can realize the resource recovery and utilization,and the final tailings sulfur content is about 0.14%,which can meet the comprehensive utilization requirements of the final tailings and realize no tailings discharge.