提高某铅锌矿分级尾砂产率的工艺研究  

Technical Study on Improving the Yield of Classified Tailings in a Lead-zinc Mine

作　　者：周胜 李茂林[1,2,4] 崔瑞[1,2] 郑伦[3] 曾志飞[4] 徐寒冰 ZHOU Sheng;LI Maolin;CUI Rui;ZHENG Lun;ZENG Zhifei;XU Hanbing(College of Resources and Environmental Engineering,Wuhan University of Science and Technology,Wuhan,Hubei 430081,China;Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources,Wuhan,Hubei 430081,China;Fankou Lead-Zinc Mine,Zhongjin Lingnan NonferrousMetal Co.,Ltd,Shaoguan,Guangdong 512325,China;Changsha Research Institute of Mining and Metallurgy Limited Liability Company,Changsha,Hunan 410012,China)

机构地区：[1]武汉科技大学资源与环境工程学院,湖北武汉430081 [2]冶金矿产资源高效利用与造块湖北省重点实验室,湖北武汉430081 [3]深圳市中金岭南有色金属股份有限公司凡口铅锌矿,广东韶光市411301 [4]长沙矿冶研究院有限责任公司,湖南长沙410012

出　　处：《矿业研究与开发》2020年第1期103-107,共5页Mining Research and Development

摘　　要：针对某铅锌矿分级尾砂供应不足,采场采充失调的问题,开展了提高分级尾砂产率的试验研究。研究结果表明:采用浓密机与两段串联旋流器组构成开路分级浓缩,取代现有浓密机与一段旋流器分级浓缩,新工艺流程可将分级尾砂产率由46.86%提升至55%,浓度由68.41%提升至71.72%;经过陶瓷过滤机过滤后所得的充填尾砂水份由14.82%降低至11.30%。较原有工艺,浓密机与两段串联旋流器分级浓缩工艺不仅提高了分级尾砂产率、延长了尾矿库服务年限,还克服了现有尾砂回收工艺中旋流器堵塞的问题,试验表明提高分级尾砂产量每年可为该矿山创造149.37~160.81万元的经济效益。In order to solve the problem of insufficient supply of tailings in a lead-zinc mine,and imbalance of mining and filling in the stope,an experimental study on improving the yield of classified tailings was carried out.The results showed that the open-circuit grading and concentration with thickener and two-serious hydrocyclone can replace the existing grading and concentration with thickener and one-stage hydrocyclone.The new process increased the yield of classified tailings from 46.86%to 55%,and improved the concentration from 68.41%to 71.72%.The water content of the filled tailings obtained by filtration through a ceramic filter was reduced from 14.82%to 11.30%.Compared with the original technology,the new process not only improved the yield of classified tailings and prolonged the service life of tailings pond,but also overcame the blocking problem of hydrocyclone in the existing tailings recovery process.The test indicated that increasing the yield of classified tailings can create an economic benefit of 1.4937~1.6081 million RMB/a for the mine.

关 键 词：分级尾砂充填 旋流器 浓密机 

分 类 号：TD926.4[矿业工程—选矿]