UNIT FOR PREPARATION OF COALMINE METHANE FOR RECOVERY Russian patent published in 2015 - IPC E21F7/00 

FIELD: mining operations.

SUBSTANCE: invention relates to the coal industry and can be used in the preparation of coalmine methane for recovery by different consumers. A unit for the preparation of coalmine methane for recovery is proposed, containing a moist separator, a filter of wet cleaning the gas, the control devices of methane content in the gas mixture and pressure, a mixer, a devices of protection against emergency regimes, the pipelines of supplying the gas mixture and the captured gas and the control system of methane concentration with the gas analyser and the gas concentration controller, the primary damping container mounted in the supply line of the captured gas in front of the mixer, and the secondary damping container mounted downstream of the mixer in the supply line to the consumer of the gas mixture, the inlet pipeline with an air inlet, a gas analyser connected to the gas concentration controller, an odorator connected to the mixer and the gas concentration controller by the regulating valve, a pressure regulator-stabiliser, and the additional control valves, and a shut-off valve mounted on the inlet pipeline between the air inlet and the mixer. In addition, the unit is provided with a cassette with the separation membranes mounted between the injection and the discharge pipelines, and has the ventilation device connected to the gas pipeline for methane-air mixture intake from the shaft, at that the moist separator, the filter of wet cleaning the gas are mounted in front of the cassette with the separating membranes.

EFFECT: increasing the efficiency of operating unit of the preparation of coalmine methane for recovery, by providing the ability of preliminary separation of recyclable captured methane-air mixtures, and improvement of safety of the unit operation.

1 dwg