Automatic dredging device for waste incineration power plant leachate grating plates

Abstract

The invention discloses an automatic dredging device for waste incineration power plant leachate grating plates. The automatic dredging device comprises dredging actuation mechanisms and a moving rack, wherein the dredging actuation mechanisms comprise ejection structures, guide structures and transmission structures; the grating plates are fixed on a wall body; the multiple dredging actuation mechanisms are mounted on the grating plates, and correspond to the grating plates one to one; the ejection structures are arranged in a manner of corresponding to grating holes; the ejection structuresdo reciprocating motions in a direction perpendicular to the grating plates along guide paths of the guide structures; the moving rack can move along the distribution direction of the grating plates;when the moving rack moves to positions corresponding to the dredging actuation mechanisms, the transmission structures drive the ejection structures to move. The automatic dredging device dredges the waste incineration power plant leachate grating plates through hydraulic power elements, is simple in mechanism and high in automation degree, and can replace the current purely manual constructionmode and obviously improve the working efficiency and the safety.

Description

technical field [0001] The invention relates to power plant equipment, in particular to an automatic dredging device for leachate grid plates in waste incineration power plants. Background technique [0002] Along with economic development, the process of urbanization is also accelerating. Garbage disposal has become a social problem that cannot be ignored. At present, due to the continuous and explosive increase in the amount of garbage, the original landfill is becoming increasingly saturated, and it is far from being able to meet the demand. Waste incineration power generation can effectively reduce the pollution and storage pressure caused by simple landfill. [0003] The moisture content of garbage in my country is relatively high, and the average moisture content of garbage is 30%-40%. In order to facilitate the smooth discharge of water in the garbage, the "Household Waste Incineration Power Generation Engineering Design Code" requires that the garbage storage in t...

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Problems solved by technology

[0005] 1. The concentration of leachate is high, viscous, and the flow speed is slow, and the slag and plastic falling to the bottom of the garbage pool will also affect the directional flow of leachate, and even block the leachate grid plate, resulting in leachate The liquid cannot be drained in time

[0006] 2. A large amount of leachate accumulates at the bottom of the pool, which may cause the phenomenon of "leachate soaking garbage"

This will reduce the calorific value of the garbage, so that the incineration process requires more combustion aids, thereby increasing the cost of incineration

[0007] 3. If the leachate cannot be discharged in time, it will cause the spread of malodorous gas and pollute the environment

[0008] 4. Due to the poor drainage of garbage leachate, the actual volumetric density of garbage in the garbage pool can reach 10kN / m 3 , which greatly exceeded the design value, resulting in overload operation of the garbage pool structure, which brought great hidden dangers to the safety and durability of the garbage pool structure

[0009] 5. At present, most of the grid plates in waste incineration power plants are cleaned manually, and there are strong carcinogens (dioxin, etc.), acid gases, and flammable and explosive gases (methane, etc.) Liquid is a special organic wastewater with high concentration of pollutants, complex water quality and strong stench, which can cause dizziness, nausea, hematuria and other symptoms, which pose a huge threat to the health and safety of dredging personnel; Explosion accident occurred during dredging of leachate and inspection channel

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