潞宁矿区资源整合矿井提高回收率关键技术研究  

Study on coal recovery rate of integrated mine in Luning mining area

作　　者：宋晓军 Song Xiao jun(Luning Mining Industry Corporation Ltd.,Shanxi Lu’an Group,Ningwu 036706,China)

机构地区：[1]山西潞安集团潞宁煤业有限责任公司,山西宁武036706

出　　处：《煤炭与化工》2017年第12期114-117,共4页Coal and Chemical Industry

摘　　要：基于潞宁煤矿整合前原先小煤矿产量低、工作面短等问题,在利用现有设备的基础上,通过理论分析和数值模拟研究将工作面加长进行回采,结合潞宁煤矿的情况,在采用ZZ7500/22/45型支架的基础上,将工作面长度增大至240 m。通过数值模拟手段,研究合理小煤柱护巷尺寸为4.5 m,实际留设4.5~6 m,相对最初15~30 m的煤柱留设大大减小了煤柱损失。Based on the low output and short working face before integration in Luning Mine,how to long the working face and conduct recovery mining was studied by theory analysis and numerical simulation,the length of the working face was added to 240 m,adopting the existed ZZ7500/22/45 support,the reasonable small coal column is 4.5 m,4.5~6 m in practice,which reduced the coal column loss comparing to the original 15~30 m leaving coal pillar.

关 键 词：工作面加长 小煤柱护巷尺寸 合理停采线 资源采出率 

分 类 号：TD823.8[矿业工程—煤矿开采]