Practice of Gas Comprehensive Control Technology in Tunlan Coal Mine

Tunlan Coal Mine of Xishan Coal Electricity Group Company was the high gas mine, through using gas comprehensive control technology of "Y" type ventilation system for gob-side entry retaining separating wall pipe drainage and inclined end pumping roadway in 18205 working face, it greatly reduced gas content in mining face, and further liberated the production capacity of fully mechanized face, the ventilation capacity of mine had overall promotion, it effectively promoted safety production of the mine. It provided a better way for dealing with the problems of high gas in working face.