Method for obtaining a low-methane fuel in the ventilation shafts of coal mines

摘要

method for obtaining fuel niskometanowego in the air shafts kopaln bituminous coal has theair discharged from the shaft (7) is supplied with a stream of gas mixture odmetanowania objetosciowego adjustable in manual or automatic gas valve (4),the air in the exhaust pipe (7) is being drained out of odmetanowania zrobu00f3w gas, which can be regulated manually creek objetosciowy or automatically through the valve (2).the air in the shaft (7) is also supplied with gas odmetanowania workings udostepniajacych and preparatorythe creek objetosciowy is regulated manually or automatically valve (6), in addition to air in the shaft (7) is supplied with odmetanowania creek methane niskometanowego,a creek objetosciowy gas is regulated by a valve (5).a mixture of methane and air stream from other areas is supplied also to the mine exhaust (7) and an adjustable manually or automatically through the vent regulatory (3).