NOVELTY - The combustion stabilizing device comprises a gas production tank (2), a fine processing device (4), a drier (5), a compressor (6), an air storage tank (7), a booster fan, a gun control valve and a gas gun that are orderly connected through pipelines. The air storage tank is provided with a drain valve and the top of the air storage tank is provided with an emergency exhaust valve. The air storage tank is provided with pressure, temperature and oxygen parameters monitoring device.    USE - The combustion stabilizing device is useful in a thermal power plant.    ADVANTAGE - The device is simple in structure, convenient to maintain, capable of automatically controlling and improving the efficiency of the boiler in the power plant, and reduces the energy consumption.    DETAILED DESCRIPTION - The combustion stabilizing device comprises a gas production tank (2), a fine processing device (4), a drier (5), a compressor (6), an air storage tank (7), a booster fan, a gun control valve and a gas gun that are orderly connected through pipelines. The air storage tank is provided with a drain valve and the top of the air storage tank is provided with an emergency exhaust valve. The air storage tank is provided with pressure, temperature and oxygen parameters monitoring device. The booster fan is provided with a bypass that is provided with a boosting fan bypass electric valve and a check valve. The compressor and the air storage tank are provided with a first check valve. The gas flow booster fan and the air pipe are equipped with a second check valve. The second check valve and a methane concentration monitor are connected with the air inlet of the bypass. The bypass is provided with the air bypass electric door and a third check valve. The third check valve is equipped with a valve on the pipeline between the gas tank and processing device. The bypass and gun control valve are connected with the methane concentration monitor. The gas production tank, processing device, drier, compressor, booster fan, gun control valve and a marsh gas gun are connected power plant distributed control system (DCS) by means of hard wiring to realize the monitoring to the whole device through the power plant DCS system and an automatic control and markers in linkage disequilibrium with that. The gas production tank is configured on another pipe connecting to the power plant near residential user. The fine treatment device is used for removing carbon dioxide and absorbing the carbon dioxide using solid absorbent or alcohol amine. The solid absorbent is limestone generated by calcining after calcium oxide, calcium oxide absorbing carbon dioxide to form calcium carbonate and calcining calcium oxide, to recycle the resource utilization. The alcohol amine is the amine solution for absorbing carbon dioxide. The gas production tank is an energy-saving biomass marsh gas tank. An air outlet of energy saving biomass biogas pool according to the marsh gas tank is buried underground and two sides of the front panel are provided with a bearing wall supporting marsh gas tank. The marsh gas tank is provided with a smoke channel. The bearing wall of the smoke channel is divided into left and right sides of the boiler smoke that flows from one side of the other side of the flow, or is not used. The left and right sides of the smoke channel are respectively provided with a soot blowing gun, a gun that can be 360 degrees rotation, which is used for blowing the smoke channel wall and the marsh gas tank wall surface of the dust. The gas channel is arranged with ash removing device. The smoke channel is set with a stirrer that is set at the middle shaft of the marsh gas tank. The inlet of the smoke channel is provided with a smoke channel inlet adjusting valve, a smoke channel outlet adjusting valve and a boiler chimney that is set at the outlet of the smoke channel. The smoke channel is made of cement mixing sand and has a rough surface for dust-removing. A draught fan is positioned on a tail part of the smoke channel.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of a combustion stabilizing device.    Gas production tank (2)    Fine processing device (4)    Drier (5)    Compressor (6)    Air storage tank. (7)