某小型金属矿山充填站设计方案研究  

Study on Design Scheme of Filling Station in a Small Metal Mine

作　　者：刘铁军 乐敏杰 许高锋 LIU Tiejun;LE Minjie;XU Gaofeng(China Nerin Engineering Co.,Ltd.)

机构地区：[1]中国瑞林工程技术股份有限公司,江西省南昌市330031

出　　处：《现代矿业》2022年第9期178-183,共6页Modern Mining

摘　　要：小型金属矿山充填站设计方案选择时应考虑采矿方法、尾砂性质、胶凝材料、脱水设备性能等,同时还需要进行多方案技术经济比选,最终确定适合企业的设计方案。通过介绍某小型金属矿山充填站设计实例全过程,从尾砂物化性质测定实验、充填料浆管道输送水力学实验、充填料浆强度配比实验结果分析,不同充填工艺方案经济比较,关键设备选型结果验证等方面指出设计过程应关注的重点问题。目前该充填站已经调试成功并且已经试生产近半年,成功充填井下采空区近8万m^(3)。从该设计实例可以得出:充填系统工艺方案确定时,应尽可能采用一段脱水方案,该系统简单、经营管理方便;针对超细粒级尾砂且尾砂产率不高的充填矿山,可尝试采用无动力深锥浓密机进行脱水充填,该设备具有较高底流浓度,长时间储料无压耙风险。设计方案对细粒级、小型充填矿山设计、生产具有一定借鉴意义。When selecting the design scheme of filling station in small metal mines,mining meth⁃ods,properties of tailings,cementitious materials,performance of dehydration equipment,etc.should be considered.At the same time,multi scheme technical and economic comparison should be carried out to fi⁃nally determine the design scheme suitable for enterprises.By introducing the whole process of the design of a filling station in a small metal mine,this paper points out the key problems that should be paid atten⁃tion to in the design process from the aspects of the determination experiment of physical and chemical properties of tailings,the hydraulic experiment of filling slurry pipeline transportation,the analysis of the experimental results of filling slurry strength ratio,the economic comparison of different filling process schemes,and the verification of key equipment selection results.At present,the filling station has been successfully commissioned and has been in trial production for nearly half a year,and the underground goaf has been successfully filled with nearly 80000 m^(3).From the design example,it can be concluded that when determining the process scheme of the filling system,one-stage dehydration scheme should be adopt⁃ed as far as possible,and the system is simple and convenient for operation and management;For filling mines with ultra-fine tailings and low tailings yield,it can be tried to use unpowered deep cone thickener for dewatering and filling,which has high underflow concentration and pressure raking risk for long-term storage.The design scheme has certain reference significance for the design and production of fine-grained and small-scale filling mines.

关 键 词：充填站 脱水设备 无动力深锥 细粒级尾砂 

分 类 号：TD853.34[矿业工程—金属矿开采]