全尾砂充填试验及充填系统方案研究  

Total Tailings Filling Test and Scheme Study on Filling System

作　　者：王立刚 彭剑平 林健 王炳炜 王怀勇[2] WANG Ligang;PENG Jianping;LIN Jian;WANG Bingwei;WANG Huaiyong

机构地区：[1]招金矿业股份有限公司,山东招远265400 [2]中国恩菲工程技术有限公司,北京100038

出　　处：《中国矿山工程》2022年第1期45-50,共6页China Mine Engineering

摘　　要：某地下矿山采用分级尾砂和废石胶结充填,存在充填设备老化、井下充填泌水率高、料浆离析严重等问题,迫切需要新建充填系统。本文根据可供选择的充填骨料来源和回采工艺要求,进行了全尾砂充填材料试验研究,确定了全尾砂胶结充填料浆输送浓度范围为68%~72%,选择灰砂比为1∶6、1∶10和1∶20三种充填料浆。根据充填试验结果,选择了全尾砂高浓度自流输送充填工艺,并就全尾砂沉降装置进行了技术和经济比较,选择了新型立式砂仓作为尾砂浓缩装置,为充填站建设提供了依据。An underground mine uses graded tailings and waste rock for consolidated filling where there exist such problems as aging filling equipment, high bleeding rate of underground filling, and serious slurry segregation, thus, construction of a new filling system is urgently needed. In this paper, an experimental research on the materials used for total tailings filling was carried out based on available filling aggregate sources and the extraction process requirements, the slurry transport density range of 68%~72% was defined for consolidated filling with total tailings, and three types of filling slurry respectively with a concrete-tailing ratio of 1∶6, 1∶10 and 1∶20 were chosen. According to the results of the filling test, the total tailings high-density gravitating transport and filling process was selected, and a technical and economic comparison of the total tailings settling devices was carried out. Ultimately, a new type of vertical silo was selected as the tailings thickening device, which provided the basis for the construction of the filling station.

关 键 词：全尾砂胶结充填 高浓度 立式砂仓 深锥浓密机 充填系统 

分 类 号：TD853[矿业工程—金属矿开采]