Coalbed gases (CBG) in Enhong syncline are characterized by high concentration of C2+ (C2-5 ), with the highest content of ethane over 30%. However, the concent
Geomechanics in deep mines becomes more complex and structural support in soft rock can be very difficult.Highly stressed soft rock subject to expansion deforma
Separation of particles from liquid in the large gravitational tanks is widely used in mining and industrial wastewater treatment process. Thickener is key unit
The global trends of increasing oil and gas costs have compelled coal possessing countries to start long term underground coal gasification(UCG) projects.These
In order to reduce the energy consumption and subsequent air pollution of coal-fired power station, based on the analysis to size and density distribution of pa
Based on low illumination and a large number of mixed noises contained in coal mine, denoising with one method usually cannot achieve good results, so a multi-l