烟煤型煤与原煤渗透特性差异的试验研究  

Experimental Investigation on Differences of Permeability Between Bituminous Coal Coal and Raw Coal

作　　者：刘康 柳晓莉[1,2] 齐艺裴 李甜 杨凯 王文元 赵欢欢 

机构地区：[1]华北理工大学矿业工程学院,河北唐山063009 [2]河北省矿业开发与安全技术实验室,河北唐山063000

出　　处：《煤》2017年第9期5-7,14,共4页Coal

基　　金：河北省重点研发计划自筹项目(16275516);国家级大学生创新创业训练计划资助项目(X2016002)

摘　　要：为研究煤体渗透性实验中型煤和原煤的差异性,选择唐山矿和钱家营矿区的烟煤原煤和型煤煤样,通过渗流实验平台对原煤和型煤的渗透性进行试验研究。试验研究了围压对型煤和原煤渗透性的影响差异;以及围压和气体压力不变的情况下,煤样在不同含水率的条件下,水分对型煤的渗透率影响。试验结果表明,型煤和原煤的渗透性随着围压的增大而减小,型煤渗透性优于原煤,水分对型煤渗透率影响较为明显,渗流实验中煤样的选取对结果有着较大的影响。In order to study the difference of briquette and coal in coal permeability experiment, the bituminous coal and coal samples were selected from Tangshan and Qianjlaying mining areas. The permeability of raw coal and briquette was studied by seepage experi-ment platform. The influence of moisture on the permeability of briquette and raw coal under different confining pressures was studied. The influence of moisture on the permeability of briquette under different water content was observed when confining pressure and fixed gas pressure. The results show that the permeability of briquette and raw coal decreases with the increase of confining pressure, and the permeability of briquette is better than that of raw coal. The influence of moisture on briquette permeability is obvious, and the selec-tion of coal sample in seepage experiment has Greater impact.

关 键 词：渗透率 含水率 围压 气体压力 

分 类 号：TD712[矿业工程—矿井通风与安全]