Prevention of explosion in coal mine and management of coal mine gas

来源 :煤炭学报(英文版) | 被引量 : 0次 | 上传用户:kassilw
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
There are many problems in terms of safe coal production and the sound de-velopment of the coal industry. Accompanying the intensification and increasing efficiency of coal production and the conducting of mining operations at deeper and more remote areas of mines, the efficient recovery and utilization of Coal Mine Methane (CMM) is an important issue in improving and stabilizing the productivity in the coal mining industry with high levels of gas, where the incidence of gas outbursts is increasing. We plan to study various aspects of the development of production technology and characteristics of the mine site. This is to establish the technology for highly efficient coproduction coal and gas operation rate. As a result, the productivity at the coal mine face will increase due to the reduction in gas emissions in the mining face. Effective use of recovered gas can be ex-pected to reduce global warming by reducing the amount of coal mine methane gas emis-sion in the air.
其他文献
In recent years, studies show that coal formed during marine transigression process is also important in coal accumulation basin. Still, the characteristics of coal formation is more clearly demonstrated by the coal formation in TST in the sequence strati
With the enlarge of cross section of roadway,the radius of plastic area and broken area increase.and the tensile stress and shear stress distributing in roof coal-rock layers relevantly increase,which induce support effect not obvious for ordinary bolt(ca
Referring to GB5618-1995 about heavy metal pollution, and using statistical analysis SPSS, the major pollutants of mine area farmland heavy metal pollution were identified by variable clustering analysis. Assessment and classification were done to the min
Based on the engineering background of No.8402 stope face in Silaogou Coal Mine of Datong Mineral Bureau and the theory of plate presented by researchers before,considering surrounding rock structure in the stope and according to mechanical property of r
Roof bolt support system has been widely applied in the No.7.9 seam in Caozhuang coal mine.However,it has not been able to be applied in the NO.10-2 seam since the small interburden(2m)between NO.9 and NO.10-2 seam.The NO.9 and NO.10-2 seams are contiguou
Patterns of shear band, precursors to shear failure occurring in strain-softening stage, axial, lateral and volumetric strains as well as Poisson\'s ratio of plane strain rock specimens in compression for different heights were investigated by use of Fa
High performance metakaolinite based cementitious materials were prepared with metakaolinite as main component, and the different modules of Na and Na-K silicate solutions as diagenetic agent. The results show that the mechanical properties are affected b
It is very important for secure mining under water bodies to study the effects of Iongwall mining on the underground water. In order to study this problem, piezometers for monitoring underground water levels were established in an American coalmine. Large
An active measurement method and its principle was introduced considering the low success rate, special difficulty, and long measurement time of the direct gas pres-sure measurement currently used in coal roadways. The technology of drilling, borehole sea
Using coal tar pitch as a matrix precursor to prepare carbon materials is widely used by impregnation/carbonization processing technology. Four different grades of coal tar pitch and a natural pitch were characterized in terms of carbon yield, density, vi