FIELD: mining, particularly to vent underground development and breakage faces of gas coal mines.
SUBSTANCE: method involves supplying gaseous mixture including oxygen, nitrogen and methane into coal mine, wherein oxygen, nitrogen and methane are taken in amounts to prevent explosive methane concentration formation in mine; directing the gaseous mixture exiting the mine to gas-conditioning separation station to separate air-methane mixture into two flows; supplying the first flow to consumer; regulating oxygen, nitrogen and methane shares in the second flow to prevent explosive methane concentration in mine; delivering the second flow into mine.
EFFECT: increased efficiency of coal mine venting with the use of gas mixture, which avoids explosive methane concentration in underground environment.
3 cl, 1 dwg
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