会宝岭铁矿全尾砂胶结充填最优配比试验研究  

Experimental study on the optimal proportion of unclassified tailings cemented filling in Huibaoling Iron Mine

作　　者：饶运章[1] 舒太镜 郑长龙[1] 彭立正 张海涛 王正英 

机构地区：[1]江西理工大学资源与环境工程学院,江西赣州341000 [2]山东能源临沂矿业集团会宝岭铁矿,山东临沂277712

出　　处：《中国矿业》2014年第3期97-100,共4页China Mining Magazine

摘　　要：会宝岭铁矿拟采用全尾砂骨料和水泥胶凝剂进行嗣后充填，对料浆流动性及充填体强度开展全尾砂胶结充填料配比试验。采用回归正交组合设计方法对全尾砂料浆的坍落度、充填体养护28天和90天的强度性能进行了研究。结果表明：料浆浓度在70％～75％时可泵性较好；充填体养护28天和90天的抗压强度、弹性模量、内聚力随着料浆重量浓度、水泥用量的增加有增大的趋势；强度性能回归分析得出充填浓度75％、水泥用量10.5％的情况下，全尾砂胶结充填体达到满足该矿生产需要的最佳强度性能。The unclassified tailings as aggregate and the cement as gelling agent were used in Hui Bao Ling Iron Mine for subsequent filling ,and proportion test on backfilling material of cemented unclassified tailings was carried out to study the slurry fluidity and strength of filling body . Based on regression orthogonal combination design ,slurry slump degree of unclassified tailings ,strength properties of filling body within 28 days and 90 days were researched .Results showed that the slurry′s pump ability was great with slurry concentration varying from 70 percent to 75 percent .And the compressive strength ,elastic modulus ,cohesion of filling body cured for 28 days and 90 days have an increase tendency with the augment of slurry concentration in weight and cement dosage .It is revealed that the best strength performance of filling body ,with concentration 75 percent and cement dosage 10.5 percent can be achieved by strength properties regression analysis ,which meets the production of the mine .

关 键 词：全尾砂胶结充填 回归正交组合设计 强度性能 最优配比 

分 类 号：TD853.34[矿业工程—金属矿开采]