夏甸金矿细颗粒尾砂充填技术研究与应用  

Research and application of fine tailings filling technology in Xiadian Gold Mine

作　　者：董国强 于涛 童玉升 Dong Guoqiang;Yu Tao;Tong Yusheng(Zhaojin Mining Industry Co.,Ltd.;School of Civil and Resource Engineering,University of Science and Technology Beijing;Xiadian Gold Mine,Zhaojin Mining Industry Co.,Ltd.)

机构地区：[1]招金矿业股份有限公司 [2]北京科技大学土木与资源工程学院 [3]招金矿业股份有限公司夏甸金矿

出　　处：《黄金》2024年第3期9-14,共6页Gold

基　　金：山东省重点研发计划(竞争性创新平台)项目(2022CXPT032)。

摘　　要：为解决夏甸金矿充填存在的细颗粒尾砂处理困难、充填浓度低、充填体强度低等技术难题,开展了充填材料物理化学性质研究、细颗粒尾砂沉降特性研究、细颗粒尾砂强度配比试验研究、细颗粒尾砂充填料浆流动性能研究等,提出了夏甸金矿充填系统技术改造方案,并完成了现场技术改造。现场应用结果表明:细颗粒尾砂(-74μm)在灰砂比1∶7~1∶8,充填能力≥60%时,充填体3 d强度≥1 MPa,满足夏甸金矿开采要求,不仅解决了细颗粒尾砂排放问题,减轻尾矿库库容压力,而且还提高了矿山尾砂利用率。In order to address the technical challenges of difficult processing of fine particle tailings,low filling concentration,and poor filling body strength in Xiadian Gold Mine,experimental research was conducted on the physical and chemical properties of filling materials,settling characteristics of fine tailings,strength ratio of fine tailings,and flowability performance of fine tailings filling slurry.A technical renovation plan for the filling system in Xiadian Gold Mine was proposed and implemented on-site.The goal was achieved to have the filling body strength of≥1 MPa at 3 d for fine tailings(-74μm)with a cemented sand ratio of 1∶7-1∶8 and a filling capacity≥60%.This improvement met the requirements of the Xiadian Gold Mine,not only solving the discharge issues of fine tailings but also reducing the pressure on tailings storage capacity while increasing the utilization rate of mine tailings.

关 键 词：细颗粒尾砂 充填系统 充填体强度 料浆流动性 充填倍线 

分 类 号：TD853.34[矿业工程—金属矿开采]