Cleaning device for pervious concrete and cleaning method based on device

Abstract

The invention discloses a cleaning device for pervious concrete and a cleaning method based on the cleaning device. The device comprises an electric vehicle, a vacuum pump and a water tank are arranged on a frame of the electric vehicle, and a composite cleaning head and a head washing cleaning disc are arranged on the lower portion of the frame, and the composite cleaning head is connected with the frame through a vertical reciprocating mechanism and a horizontal slewing mechanism. The composite cleaning head comprises an inner air suction disc and an outer water bundling cover. A suction nozzle is arranged at the lower part of the suction disc; a hanging net for separating obstructions is arranged in the air suction nozzle; a water spraying opening is formed in the water bundling cover and connected with the water tank through a water conveying pipe; the washing head cleaning disc is fixed on the rotation circumference of the composite cleaning head; an oscillator is arranged on the lower portion of the hair washing cleaning disc, the hair washing cleaning disc is connected with the water tank through a water return pipe, and a water return pump and a filter are arranged on the water return pipe. The cleaning device has the advantages that the cleaning depth is controllable, the pervious concrete foundation is not damaged; meanwhile, the water consumption is small, and waste of water resources is eradicated.

Description

technical field [0001] The invention relates to the field of sponge city construction, in particular to a permeable concrete cleaning device and a cleaning method based on the device. Background technique [0002] The construction of sponge city is in full swing, but there are defects in the equipment and methods of maintaining the sponge city, especially for the problem that the permeable holes in the permeable concrete are blocked and affect the water permeability, and there is no good solution. After research, it is found that the substances that block the permeable holes are mainly aggregates composed of fine sand and organic matter. The fine sand comes from rainwater, and the organic matter comes from rotten leaves, withered flowers, and flocs that wrap plant seeds. In permeable concrete, the distribution is shallow, and the depth does not exceed 1 cm. Blockages in pervious concrete cannot be cleaned by conventional sweepers. Since there are continuous holes on the sur...

AI Technical Summary

Problems solved by technology

Blockages in pervious concrete cannot be cleaned by conventional sweepers. Since there are continuous holes on the surface and inside of pervious concrete, the rotating broom of the sweeper will only push the blockages from the shallow layer of pervious concrete to deeper layers. There is a large amount of air leakage at the contact surface between the nozzle of the suction pipe and the permeable concrete, the suction force is weak, and the obstruction cannot be sucked out

There are no mature solutions available in the public innovative solutions, for example: Application No. 201922250142.4, a cleaning and maintenance device for the permeable body of the sponge city. The premise of using this device to clean the permeable bricks is to fill the permeable bricks with water in order to remove the obstruction from the permeable Bricks are sucked out, and the water permeability of permeable concrete is as high as 25%, which is much higher than that of permeable bricks. The injected cleaning water will quickly spread outward. Using this device to clean permeable concrete pavements or squares will inevitably cause a lot of waste of water resources; application number 201910220381.7 Sponge city permeable pavement cleans unmanned vehicles, uses high-pressure water to spray the surface of permeable concrete, and then collects and filters muddy water containing obstructions to clean permeable concrete. This method will not only cause a lot of waste of water resources, but also high-pressure water will be hollowed out The foundation of permeable concrete even causes the subsidence of the permeable concrete body; application number 201710430182.X is an in-situ water permeability recovery device and recovery method for blocked permeable concrete based on reverse water flow washing, using the negative pressure generated by vacuum to spray downward to the permeable concrete The water in the concrete is reversely pumped back to the water tank through the suction pipe and filtered. From common knowledge, the condition for using a vertical pipe to lift water from bottom to top is that there must be no air in this pipe. It is necessary to use this device to clean permeable concrete. A large amount of water is sprayed to discharge all the air at the nozzle of the suction pipe in this invention, so that a continuous water flow can be formed to bring out the obstruction. It is also a solution with an astonishing water consumption, which is difficult to apply in actual work

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