大倾角厚煤层放煤工艺数值模拟及应用  

Numerical Simulation and Application of Coal Drawing Technology in Large-inclined-angle Thick Seam

作　　者：张楠楠 Zhang Nannan(Gucheng Colliery,Shanxi Lu'an Mining(Group)Co.,Ltd.,Changzhi,Shanxi 046000)

机构地区：[1]山西潞安矿业(集团)有限责任公司古城煤矿,山西长治046000

出　　处：《江西煤炭科技》2024年第1期48-50,共3页Jiangxi Coal Science & Technology

摘　　要：为研究泉店煤矿12050工作面大倾角厚煤层放煤参数,采用PFC3D数值模拟软件,对比分析工作面不同放煤顺序和放煤步距下顶煤采出率和含矸率,确定工作面合理放煤参数。结果表明:一采一放、上行单轮间隔放煤方式较其他放煤方式顶煤采出率要高,且含矸率较低。现场工业试验应用表明,工作面回采期间,顶煤平均采出率为86.8%,多回收产量5%,取得了良好的经济效益。In order to study the coal drawing parameters of 12050 working face of Quandian Colliery,PFC3D numerical simulation software is used to compare and analyze the top coal recovery rate and gangue ratio under different coal drawing sequences and coal drawing steps,and determine the reasonable coal drawing parameters at the working face,whose results show that the top coal recovery rate of the one-mining,one-caving and upward single-wheel interval coal drawing method is higher than that of other coal drawing methods,and the gangue content is lower.The field industrial test application shows that the average recovery rate of the top coal is 86.8% and the extra recovery yield is 5% during the mining with good economic benefits.

关 键 词：放煤工艺 数值模拟 大倾角 厚煤层 

分 类 号：TD823.49[矿业工程—煤矿开采]