龙桥矿业全尾砂胶结充填降低灰砂比研究与实践  

Research and Practice of Full Tailings Cemented Filling for Reducing Ratio of Cement to Sand in Longqiao Mining

作　　者：刘金生 LIU Jinsheng(Anhui Lujiang Longqiao Mining Co.,Ltd.)

机构地区：[1]安徽庐江龙桥矿业股份有限公司

出　　处：《现代矿业》2022年第10期269-271,共3页Modern Mining

摘　　要：龙桥矿业为降低全尾砂胶结充填成本,以胶结剂优化为手段,进行了灰砂比降低对充填体抗压强度影响研究和实践。结果表明,在确保充填强度的情况下,胶结剂的优化,可使灰砂比由1∶6降为1∶8,每立方米充填体减少胶结剂用量达36.2 kg,年平均节约充填材料成本1086万元;后续研究还表明,灰砂比可进一步降为1∶10,每立方米充填体可减少胶结剂用量23.04 kg,生产成本也将进一步下降。In order to reduce the cost of full tailings cement filling,research and practice on the in⁃fluence of the reduction of the ratio of cement to sand on the compressive strength of the backfill were car⁃ried out by optimizing cementing agent in Longqiao Mining.The results showed that under the condition of ensuring the filling strength,the optimization of the cementing agent could reduce the ratio of cement to sand from 1∶6 to 1∶8 and the amount of cement by 36.2 kg per cubic meter of filling.The cost of filling ma⁃terials on average per year saved by 10.86 million yuan.The following studies also showed that the ratio of cement to sand can be further reduced to 1∶10,the amount of cement can be reduced by 23.04 kg per cu⁃bic meter of filling,and the production cost also will be further reduced.

关 键 词：尾矿充填 胶结充填 灰砂比 胶结剂 

分 类 号：TD803[矿业工程—矿山开采]