老鸦岭尾矿库旋流分级粗颗粒尾矿挤淤特性试验研究  

Experimental Study on Squeezing Silting Characteristics of Coarse-grained Tailings in Laoyaling Tailings Reservoir by Cyclone Classification

作　　者：苏卫宏 高结旺 吴小刚[2,3,4,5] 秦柯 盛欢[1] 方勇 SU Weihong;GAO Jiewang;WU Xiaogang;QIN Ke;SHENG Huan;FANG Yong(Dongguashan Copper Mine,Tongling Nonferrous Metals Group Co.,Ltd.;State Key Laboratory of Safety and Health for Metal Mines;Key Laboratory of National Mine Safety Supervision Bureau for Disas-ter Prevention and Control of Non-coal Open-pit Mines;Sinosteel Maanshan General Institute of Mining Research Co.,Ltd.;Huawei National Engineering Research Center for Efficient Recycling of Metallic Min-eral Resources Co.,Ltd.)

机构地区：[1]铜陵有色金属集团股份有限公司冬瓜山铜矿,安徽省铜陵市244000 [2]金属矿山安全与健康国家重点实验室 [3]非煤露天矿山灾害防控国家矿山安全监察局重点实验室 [4]中钢集团马鞍山矿山研究总院股份有限公司 [5]华唯金属矿产资源高效循环利用国家工程研究中心有限公司

出　　处：《现代矿业》2023年第11期103-107,120,共6页Modern Mining

摘　　要：为研究一种经济高效的尾矿库汇水区沉积滩面挤淤方法,以老鸦岭尾矿库为工程背景,进行了旋流分级粗颗粒尾矿挤淤特性试验研究。研究结果表明:挤淤体积与水下放矿粗颗粒体积成正比,其中老鸦岭尾矿库粗颗粒水下放矿挤淤系数为13.104,挤淤度与尾砂粗细比呈正相关,挤淤比与砂粗细比呈先增大后减小的规律发展;尾矿库条件允许下,抛填粗颗粒尾砂体积选取为尾矿库汇水区细粒尾矿体积的0.4倍,取得的效益最好;工程应用结果表明,此次挤淤特性试验结果不仅提升了尾矿库汇水区有效库容利用率,亦可为后期尾矿库闭库软弱滩面综合治理工程提供良好的工程基础。In order to study an economical and efficient method of squeezing silt on the sedimentary beach in the catchment area of tailings reservoir,taking Laoyaling tailings reservoir as the engineering background,the experimental study on the squeezing silting characteristics of coarse-grained tailings with cyclone classification was carried out.The results show that the squeezing silting volume is proportional to the volume of coarse particles in underwater ore drawing.The squeezing coefficient of coarse-grained underwater ore drawing in Laoyaling tailings reservoir is 13.104.The squeezing degree is positively correlated with the coarse-to-fine ratio of tailings,and the squeezing ratio and the coarse-to-fine ratio of sand increase first and then decrease.Tailings reservoir under permitted conditions,the volume of coarse-grained tailings is selected as 0.4 times of the volume of fine-grained tailings in the catchment area of tailings reservoir,and the benefit is the best.The engineering application results show that the test results of the squeezing characteristics have improved the utilization rate of the effective reservoir capacity in the catchment area of the tailings reservoir,which can provide a good engineering basis for the comprehensive treatment of the weak beach surface of the closed tailings reservoir in the later stage.

关 键 词：尾矿库 库容利用率 软弱滩面 旋流分级 挤淤特性 

分 类 号：TD926.4[矿业工程—选矿]