粗粒径分级尾砂级配改性与似膏体充填新思路  

New idea of grading modification and paste filling of coarse particle size graded tailings

作　　者：朱久隆 李帅[2] 袁作军 何维峰 王新民[2] 项振忠 ZHU Jiu-long;LI Shuai;YUAN Zuo-jun;HE Wei-feng;WANG Xin-min;XIANG Zhen-zhong(Xiaotieshan Mine,Baiyin Nonferrous Metals Group Co.,LTD.,Baiyin 730900,China;School of Resources and Safety Engineering,Central South University,Changsha 410083,China)

机构地区：[1]白银有色集团股份有限公司小铁山矿,甘肃白银730900 [2]中南大学资源与安全工程学院,湖南长沙410083

出　　处：《世界有色金属》2024年第10期185-187,共3页World Nonferrous Metals

基　　金：湖南省科技创新计划资助(项目编号2023RC3035);湖南省自然科学基金项目资助(项目编号2021JJ40745)。

摘　　要：小铁山矿立式砂仓分级尾砂充填系统建设历史久远,分级尾砂颗粒较粗、细粒径成分缺失,导致充填料浆泌水量大、水泥分层离析严重、充填成本高,通过添加粉煤灰改性粗颗粒分级尾砂的级配,实现了组合料似膏体充填,显著提高了充填质量和效果。The hierarchical tailings filling system of hemisphic-bottom vertical sand silo in Xiaotieshan Mine was built in the 1980s,and there are a series of technical problems in the actual operation.Through the technical upgrading measures such as the transformation of the cone bottom of the vertical sand silo and the upgrading of the automatic control system,the filling quality and effect have been significantly improved.

关 键 词：分级尾砂 分层离析 粉煤灰改性 似膏体充填 

分 类 号：TD724[矿业工程—矿井通风与安全]