FIELD: mining operation.
SUBSTANCE: method of preventing explosion of combustible gases in mines is proposed, comprising isolation of mine workings with creation in them of nonexplosive concentration of combustible gases under excessive pressure and placement of channel for transporting the rock mass. And the said channel is filled with foam under pressure greater than the pressure of the combustible gas in the mine working. At that the part of the channel for transporting the rock mass is arranged horizontally, and under this part of the channel a container is placed for draining foam-generating liquid from the decomposable foam which is used for repeated obtaining the foam.
EFFECT: increased efficiency of the method of preventing explosion of combustible gases, reduction of flow-rate of the foam-generating liquid.
1 dwg
