The present application relates to the technical field of mine ventilation air
methane utilization, and particularly relates to a mine ventilation air
methane comprehensive
treatment system and method based on
coal-
electricity integration, which realizes effective
recovery and utilization of mine ventilation air
methane waste heat by setting a ventilation air
methane air heat exchanger to exchange heat between mine ventilation air methane and
cold air in a
plant area in winter, and conveying the heated air to a
plant area living area ventilation or
heating system. The technical scheme of the present application is that mine ventilation air methane is treated by heat exchange and condensation and then enters a boiler
system for methane oxidation;
water vapor in the ventilation air methane is condensed and collected by heat exchange and cooling, so as to reduce the
water content of the ventilation air methane, and then the treated ventilation air methane is sent to a
power station boiler secondary air
system, so that trace methane in the ventilation air methane is oxidized into
carbon dioxide under high-temperature conditions in the
boiler furnace, so as to reduce the
greenhouse effect of the mine ventilation air methane and improve the boiler
combustion efficiency. The present application solves the problems of
resource utilization and
greenhouse gas emission reduction of mine ventilation air methane in the prior art.