Leachate guide and discharge device for garbage landfill gas collecting well

Abstract

The invention provides a leachate guide and discharge device for a garbage landfill gas collecting well. The leachate guide and discharge device comprises a water collecting pipe, a compressed air pipe, an exhaust pipe, a drainage pipe and a guide and discharge mechanism, wherein the water collecting pipe is provided with a top plate and a bottom plate, the roughly central position of the top plate is provided with a hole, and the roughly central position of the bottom plate is provided with a hole provided with a check valve; the compressed air pipe is connected with an air inlet valve passing through the top plate; the exhaust pipe is connected with an exhaust valve passing through the top plate; the drainage pipe passes through the interior of the water collecting pipe through the hole of the top plate; and the guide and discharge mechanism is positioned in the water collecting pipe and used for controlling the check valve according to the height of the water level in the water collecting pipe to open or close the hole in the bottom plate and open or close the air inlet valve and the exhaust valve. Through the leachate guide and discharge device, the leachate of a landfill is guided and discharged in a mechanical mode by using the buoyancy of water, so that the collection of the landfill gas and the guide and discharge efficiency of the leachate can be effectively improved, the automation degree is improved, the complexity of the process is reduced, and the cost is reduced.

Description

technical field [0001] The invention relates to a leachate guiding and draining device for a gas-collecting well of a garbage landfill. Background technique [0002] At present, domestic waste disposal methods include: sanitary landfill technology, composting technology, incineration technology, etc. Sanitary landfill technology currently occupies a considerable proportion in domestic waste disposal in my country and even in the world, so technical research in this field is particularly necessary. [0003] Since the untreated domestic waste is accepted, which has many organic components, a large amount of gas will be produced after a period of landfilling. The main components are hydrogen sulfide, ammonia, volatile organic compounds (VOCs), methane, etc., which not only produce strong Some odorous substances are toxic, and the odorous substances that escape into the air spread to various places along with the flow of air, which will bring regional effects. The surface sewa...

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Problems solved by technology

[0018] At present, in related technologies, the gas collection system has the problems of complex process, high cost, low degree of automation, and low gas collection efficiency

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