Cleaning and recycling system and process for motor sweeper

Abstract

The cleaning and recycling system comprises a vehicle cleaning platform and a garbage cleaning pool, a plurality of sewage recycling channels are formed in the vehicle cleaning platform at intervals, elastic filtering assemblies are arranged on the sewage recycling channels, and air injection channels communicating with the sewage recycling channels are formed in the vehicle cleaning platform; an air pump is arranged in the air injection channel, the garbage cleaning pool is located on one side of the vehicle cleaning platform, the bottom of the garbage cleaning pool communicates with the multiple sewage recycling channels, and the air pump is designed to inject air flow, push sewage in the sewage recycling channels to be injected into the bottom of the garbage cleaning pool and drive the elastic filtering assembly to vibrate at the same time. By adopting the scheme, the air flow generated by the air pump is used as a power source, so that cleaning sewage containing silt is sucked and injected to the bottom of the garbage cleaning pool to generate a disturbance effect on the bottom of the pool, the conditions of sludge hardening and sedimentation are reduced, and meanwhile, the disturbance effect in the garbage cleaning pool is beneficial to separation of large-density garbage and light garbage.

Description

Technical Field

[0001] This application relates to the field of sweeper cleaning technology, and in particular to a sweeper cleaning and recycling system and process. Background Technology

[0002] As a modern urban greening equipment, sanitation sweeping vehicles have played an increasingly important role in the urbanization process in recent years, alleviating urban waste landfill problems to some extent. However, due to issues such as their technical characteristics, operating procedures, and maintenance methods, there are still shortcomings in their practical application, which may have a certain impact on the environment.

[0003] The prior art relates to a sludge separation system for a dry and wet waste collection and treatment station for a sweeper truck. This system uses a sludge separator in conjunction with a sludge collection tank to separate and recycle the sludge collected by the municipal waste sweeper truck. By rationally adjusting the particle size of the separated sludge through the setting of the sludge separator, the sludge with high water content can be separated and then further collected, separated, and recycled, thereby improving the sludge recycling efficiency and water utilization.

[0004] Even with the use of bar screens for garbage sorting and sludge recycling, the heavy sludge in the sewage is prone to compaction and hardening at the bottom of the pool when it is still. Traditional mechanical scrapers are overloaded when dealing with high-viscosity compacted sludge, which can easily lead to equipment failure or incomplete cleaning, thus causing great difficulties in sludge recycling. At the same time, the large amount of garbage and sludge on the sweeper itself can cause secondary pollution to the environment when it is cleaned. Summary of the Invention

[0005] This application provides a sweeper cleaning and recycling system and process, which can solve the problems of existing sweeper cleaning work being difficult, prone to secondary pollution, environmentally unfriendly, and difficult to clean bottom sludge generated during garbage recycling.

[0006] The technical solution of this application is as follows: A sweeper vehicle cleaning and recycling system, comprising: The vehicle washing platform has multiple wastewater recycling channels spaced apart inside, each wastewater recycling channel is equipped with an elastic filter component, and an air jet channel connected to the wastewater recycling channels is opened inside the vehicle washing platform, with an air pump inside the air jet channel. The garbage cleaning pool is located on one side of the vehicle washing platform. The bottom of the garbage cleaning pool is connected to multiple sewage recycling channels. The air pump is designed to spray air and use the negative pressure generated by the airflow at the sewage recycling channels to draw sewage from the sewage recycling channels and spray it into the bottom of the garbage cleaning pool, while driving the elastic filter components to vibrate.

[0007] By adopting the above scheme, the airflow generated by the air pump is used as the power source to create a negative pressure zone at the intersection of the sewage recovery channel and the jet channel. This allows the cleaning sewage containing silt to be directly sucked in and jetted to the bottom of the garbage cleaning tank. As the more silt accumulates on the surface of the elastic filter component, the lower the air resistance, allowing the elastic filter component to retract and move under the negative pressure below, shaking off the surface silt while recovering the sewage from the vehicle washing platform surface. In addition, after the gas-liquid mixture is injected into the bottom of the garbage cleaning tank, it generates continuously expanding and rising bubbles, which in turn disturb the bottom of the tank, effectively reducing the occurrence of sludge compaction and sedimentation, making it easier to clean the sludge. Furthermore, the disturbance effect in the garbage cleaning tank helps to separate high-density garbage from lightweight garbage.

[0008] In one embodiment of this application, the sewage channel includes: The vehicle washing platform has a V-shaped recess on its surface, and the drain hole is located on the surface of the V-shaped recess. A sewage channel is provided inside the vehicle washing platform and extends vertically. The upper end of the sewage channel is connected to the floor drain hole. The vehicle washing platform has spray channels located below the multiple sewage channels. The spray channels extend horizontally and are connected to the lower ends of the sewage channels.

[0009] By adopting the above scheme, the V-shaped concave structure can guide the water accumulated on the cleaning platform to converge into the sewage channel, reducing the water residue on the platform. At the same time, the vertically extending sewage channel uses gravitational potential energy to accelerate the downward flow of sewage, providing initial kinetic energy for subsequent airflow injection and improving the overall jet intensity of the gas-liquid mixture.

[0010] In one embodiment of this application, the jet passage includes: A venting chamber, wherein the air pump is installed inside the venting chamber, and one end of the venting chamber is connected to the atmosphere; The connecting channel is connected to the other end of the venting chamber, and the connecting channel is connected to the injection channel. A one-way valve is provided inside the connecting channel.

[0011] By adopting the above solution, the one-way valve can prevent sewage and garbage from flowing back into the discharge chamber under gravity or hydrostatic pressure when the air pump stops working or the air pressure drops, thus ensuring the safe operation of electrical equipment.

[0012] In one embodiment of this application, the injection channel includes: The channel body, one end of which is connected to the connecting channel; The diversion cavity is located inside the vehicle washing platform and is connected to the other end of the channel body; A branch channel is provided on the other side of the diversion cavity, and multiple branch channels are provided at intervals, all of which are connected to the diversion cavity.

[0013] By adopting the above scheme, the diversion cavity distributes a single airflow to multiple branch channels, realizing large-area multi-point synchronous negative pressure suction of the vehicle washing platform. At the same time, the generated multiple jets enter the garbage washing pool simultaneously, which can form a large-scale turbulent flow field at the bottom of the pool, further improving the turbulence effect.

[0014] In one embodiment of this application, a grid-like spray pipe is further included. The spray pipe is installed inside the bottom end of the garbage washing pool. The spray pipe is connected to multiple branch channels. Multiple air jet holes are spaced apart on the surface of the spray pipe. The height D of the garbage washing pool and the height H of the vehicle washing platform satisfy: D < H.

[0015] By adopting the above scheme, the grid-like jet pipeline evenly distributes the gas-liquid mixture throughout the entire bottom area of ​​the waste washing tank, ensuring comprehensive coverage of the bubble curtain and enhancing the solid-liquid separation and flotation effects. At the same time, the height D of the waste washing tank is set to be less than the height H of the vehicle washing platform. By utilizing the principle of communicating vessels and the hydrostatic pressure difference, potential energy is used to assist in the conveying during operation, reducing the resistance load of pneumatic conveying and thus reducing the energy consumption of the air pump.

[0016] In one embodiment of this application, the resilient filtering component includes: An elastic element is fixedly mounted on the vehicle washing platform and located on both sides of the drain hole; The filter steel plate has an arc-shaped convex surface and multiple filter holes.

[0017] By adopting the above solution, the arc-shaped convex surface design enhances the structural strength of the filter steel plate. At the same time, under the action of airflow suction, the filter steel plate undergoes reciprocating deformation and vibration, which facilitates the shaking off of mud and sand from the filter steel plate and reduces the occurrence of blockage in the drain holes.

[0018] In one embodiment of this application, a cleaning component is further included, the cleaning component comprising: Support frame, which is mounted on the outside of the vehicle washing platform; The spray plate has two opposing spray plates, which are slidably mounted on the support frame. The spray plate has spray holes inside and is configured to communicate with a water supply device to clean the sweeper through the spray holes.

[0019] By adopting the above solution, the sliding assembly spray plate can move back and forth to clean according to the length of the sweeper, which improves cleaning efficiency and ensures the cleaning effect of the sweeper. In conjunction with the vehicle cleaning platform to recycle cleaning wastewater, it reduces the waste of water resources and pollution to the surrounding environment.

[0020] In one embodiment of this application, a waste recycling system is also included, the waste recycling system comprising: A bar flotation machine is installed outside the waste washing tank and is used to remove floating waste on the surface of the waste washing tank. A chain plate scraper is installed inside the bottom of the waste washing pool and is used to scrape away the deposited waste at the bottom of the waste washing pool.

[0021] By adopting the above scheme, the air bubbles inside the waste washing tank lift the suspended solids to the liquid surface, making it easier for the bar flotation machine to efficiently remove them. The chain plate scraper can mechanically remove the settled heavy sludge, thereby reducing the load on the subsequent sewage treatment system.

[0022] In one embodiment of this application, a water recycling system and a waste sorting and processing system are also included; The waste sorting and processing system includes an integrated waste screening machine and a conveyor. One end of the chain plate scraper is located at the bottom of the waste washing pool, and the other end extends to the inlet of the integrated waste screening machine. The integrated waste screening machine is configured to crush, screen, and sort waste. The wastewater recycling system includes a wastewater tank, a chemical dosing and mixing tank, a sedimentation tank, and a clear water tank connected in sequence. The chemical dosing and mixing tank is connected to both the wastewater tank and the sedimentation tank. The upper end of the sedimentation tank is connected to the clear water tank, and the lower end is connected to the chemical dosing and mixing tank. The clear water tank is connected to the water supply equipment and is used to add water from the clear water tank into the spray plate for spraying the sweeper. A filter press is provided on one side of the chemical dosing and mixing tank to filter the flocculated sediment inside the chemical dosing and mixing tank and discharge the wastewater to the wastewater tank.

[0023] By adopting the above solution, solid waste can be classified by setting up an integrated waste screening and sorting machine. At the same time, by sequentially flocculating, settling, and pressing the wastewater, it can be purified into reusable clean water, thereby reducing the water resource costs of sweeper operation.

[0024] The second objective of this invention is to provide a cleaning and recycling process for sweepers.

[0025] The technical solution is as follows: A sweeper cleaning and recycling process, which uses a sweeper cleaning and recycling system to clean the sweeper, includes the following steps: S1: Set up the vehicle washing platform, drive the sweeper onto the vehicle washing platform, dump the garbage into the garbage washing pool, use the washing components to wash the sweeper, and turn on the air pump. S2: The air pump injects air and draws in sewage, so that the sewage and air are injected into the bottom of the garbage washing tank together, forming an upward air bubble flow that breaks up the garbage and separates it into floating garbage and sediment garbage according to density; S3: Floating garbage is retrieved into the garbage bin, and the accumulated garbage is scraped out by the chain plate scraper and transported to the integrated garbage screening machine. The integrated garbage screening machine crushes the garbage and sorts it into incineration garbage and landfill garbage. At the same time, the sewage is discharged into the sewage pool. S4: The sewage in the sewage tank is pumped to the dosing and mixing tank using a sewage pump, and the sewage tank is dosed and mixed to form primary sewage with sedimentation. S5: The primary sewage is pumped to the sedimentation tank for settling using a sewage pump, and the clear water in the upper layer of the sedimentation tank is pumped into the clear water tank. The secondary sewage in the lower layer of the sedimentation tank is pumped back to the dosing and mixing tank. S6: The sterilization system sterilizes the water in the clean water tank and pumps it to the cleaning components and the integrated waste screening machine as needed.

[0026] By adopting the above solution, the air pump is turned on after the car wash, and the car wash wastewater is used as a stirring medium. This helps with hydraulic flotation and improves the convenience of sludge removal. It also ensures the cleanliness of the sweeper while realizing the recycling of water resources.

[0027] In summary, this application includes at least one of the following beneficial technical effects: by using the high-speed airflow generated by the air pump to create negative pressure at the intersection of the jet channel and the sewage channel, the cleaning sewage containing mud and sand is sucked up. This suction method can effectively reduce the potential for malfunctions such as impeller entanglement and wear jamming of traditional centrifugal pumps, while also reducing the possibility of mud and sand clogging the vehicle washing platform and reducing the maintenance cost of the equipment.

[0028] The gas-liquid mixture is directly sprayed onto the bottom of the waste washing tank. The rising and expanding bubbles generated by the gas in the liquid create a turbulent field at the bottom of the tank. This not only effectively breaks up the compacted layer of sediment and prevents heavy sludge from accumulating in dead corners, reducing the mechanical load on the bottom chain scraper, but also helps to separate light waste from sludge and lifts the light waste to the surface, improving the retrieval efficiency of the subsequent bar flotation machine.

[0029] By setting up an elastic filter component, the negative pressure formed at the intersection of the sewage channel and the air jet channel can drive the elastic filter component to produce a slight vibration. This vibration will cause the blockage debris attached to the surface of the filter holes to be bounced or shaken off, thus realizing the self-cleaning function of the filter component and reducing the occurrence of poor drainage caused by blockage of the vehicle washing platform. Attached Figure Description

[0030] Figure 1 This is a perspective view of a sweeper cleaning and recycling system provided in this embodiment of the application; Figure 2 This is a side sectional view of a sweeper cleaning and recycling system provided in this embodiment of the application; Figure 3 This is a top view of a sweeper cleaning and recycling system provided in this embodiment of the application; Figure 4 This is a front sectional view of a sweeper cleaning and recycling system provided in this embodiment of the application; Figure 5 This is a top sectional view of a branch channel of a sweeper cleaning and recycling system provided in this embodiment of the present application; Figure 6 yes Figure 2 An enlarged schematic diagram of part A in the middle.

[0031] Explanation of reference numerals in the attached drawings: 1. Vehicle washing platform; 11. Sewage recycling channel; 111. Floor drain hole; 112. Sewage channel; 113. Spray channel; 1131. Channel body; 1132. Diversion chamber; 1133. Branch channel; 12. Elastic filter assembly; 121. Elastic element; 122. Filter steel plate; 13. Air jet channel; 131. Venting chamber; 132. Connecting channel; 14. Air pump; 15. V-shaped recess; 2. Garbage washing pool; 3. Spray pipeline; 31. Air jet hole; 4. Washing assembly; 41. Support frame; 42. Spray plate; 5. Garbage recycling system; 51. Bar screen flotation machine; 52. Chain plate scraper; 6. Water recycling system; 61. Sewage pool; 62. Chemical dosing and mixing pool; 63. Sedimentation tank; 64. Clear water pool; 65. Filter press; 7. Garbage sorting and treatment system; 71. Integrated garbage screening machine; 72. Conveyor. Detailed Implementation

[0032] The following is in conjunction with the appendix Figures 1-6 This application provides a further detailed description of a sweeper cleaning and recycling system and process.

[0033] The sweeper cleaning and recycling system provided in this application embodiment includes a vehicle cleaning platform 1 and a garbage cleaning pool 2.

[0034] Please see Figure 1 and Figure 2 The vehicle washing platform 1 has multiple wastewater recycling channels 11 spaced apart inside. Each wastewater recycling channel 11 is equipped with an elastic filter assembly 12. The vehicle washing platform 1 also has an air jet channel 13 connected to the wastewater recycling channels 11. An air pump 14 is installed inside the air jet channel 13. The garbage cleaning pool 2 is located on one side of the vehicle washing platform 1. The bottom of the garbage cleaning pool 2 is connected to the multiple wastewater recycling channels 11. The air pump 14 is designed to spray airflow and use the negative pressure generated by the airflow at the wastewater recycling channels 11 to draw in the wastewater and spray it into the bottom of the garbage cleaning pool 2. At the same time, it drives the elastic filter assembly 12 to vibrate, so as to achieve a disturbance effect and drive the elastic filter assembly 12 to vibrate, thereby preventing the elastic filter assembly 12 from becoming blocked during the filtration process.

[0035] In this embodiment, the air pump 14 is preferably a high-pressure Roots blower or a screw air compressor, with a rated exhaust pressure of 0.6MPa-0.8MPa and an exhaust volume of 10-20m³ / min, to ensure that a high-speed airflow sufficient to overcome water depth resistance and form a strong ejection effect can be generated.

[0036] Please continue reading. Figure 1 and Figure 2 The sewage channel 112 includes a drain hole 111, a sewage channel 112, and a spray channel 113. A V-shaped recess 15 is formed on the surface of the vehicle washing platform 1. The drain hole 111 is formed on the surface of the V-shaped recess 15. The sewage channel 112 is formed inside the vehicle washing platform 1 and extends vertically. The upper end of the sewage channel 112 is connected to the drain hole 111. The spray channel 113 is formed below the multiple sewage channels 112 inside the vehicle washing platform 1. The spray channel 113 extends horizontally and is connected to the lower end of the sewage channel 112. The V-shaped recess 15 structure can facilitate the collection of water on the washing platform into the sewage channel 112, reducing the possibility of water residue on the platform.

[0037] In this embodiment, the slope angle of the V-shaped recess 15 is designed to be 2°-5°, which ensures the rapid convergence of water flow without affecting the safety of the sweeper. The drain hole 111 is equipped with a detachable coarse filter basket at its inlet to intercept large stones or metal parts with a diameter greater than 30mm, preventing them from entering the internal pipe and causing hard blockage.

[0038] Please see Figure 2 and Figure 5The jet channel 13 includes a venting chamber 131 and a connecting channel 132. The air pump 14 is installed inside the venting chamber 131. One end of the venting chamber 131 is connected to the atmosphere, and the other end of the venting chamber 131 is connected to the connecting channel 132. The connecting channel 132 is connected to the jet channel 113. A one-way valve is installed inside the connecting channel 132. By installing the one-way valve, sewage and garbage can be prevented from flowing back into the venting chamber 131 when the air pump 14 stops working or the air pressure decreases.

[0039] In this embodiment, the inner wall of the venting chamber 131 may be lined with sound-absorbing cotton or sound-insulating felt to reduce the noise of the air pump 14 during operation.

[0040] Please see Figure 5 The jetting channel 113 includes: a channel body 1131, a diversion cavity 1132, and a branch channel 1133. One end of the channel body 1131 is connected to the connecting channel 132. The diversion cavity 1132 is located inside the vehicle washing platform 1 and is connected to the other end of the channel body 1131. The branch channel 1133 is located on the other side of the diversion cavity 1132, and multiple branch channels 1133 are spaced apart. All of the multiple branch channels 1133 are connected to the diversion cavity 1132. A single airflow is distributed to multiple branch channels 1133, and the resulting multiple jets simultaneously enter the garbage washing pool 2, thereby forming a large-scale turbulent flow field at the bottom of the pool to disturb the sludge at the bottom of the garbage washing pool 2.

[0041] In this embodiment, the inner diameter of the main channel 1131 is larger than the inner diameter of the branch channel 1133. For example, the inner diameter of the main channel 1131 is DN100 and the inner diameter of the branch channel 1133 is DN50, so as to ensure that the flow velocity after air distribution does not decrease.

[0042] Please continue reading. Figure 5 It also includes a grid-like jet pipe 3, which is installed inside the bottom of the waste washing tank 2. The jet pipe 3 is connected to multiple branch channels 1133. Multiple jet holes 31 are spaced apart on the surface of the jet pipe 3. The height D of the waste washing tank 2 and the height H of the vehicle washing platform 1 satisfy: D < H. The grid-like jet pipe 3 can evenly distribute the gas-liquid mixture in the entire bottom area of ​​the waste washing tank 2, ensuring that the bubble curtain covers the inside of the waste washing tank 2, thereby enhancing the solid-liquid separation and flotation effect.

[0043] In this embodiment, the height difference between the height D of the garbage washing pool 2 and the height H of the vehicle washing platform 1 is preferably 500mm-1000mm. The gravitational potential energy generated by this height difference ensures that sewage cannot flow back to the surface of the washing platform when the air pump 14 is off.

[0044] Please see Figure 6 The elastic filter assembly 12 includes an elastic element 121 and a filter steel plate 122. The elastic element 121 is fixedly mounted on the vehicle washing platform 1 and located on both sides of the drain hole 111. The surface of the filter steel plate 122 is provided with an arc-shaped convex surface and multiple filter holes. Under the action of airflow suction, the arc-shaped convex surface can utilize the turbulent characteristics or pulsating negative pressure of the airflow when flowing through the spray channel to make the elastically supported filter steel plate generate high-frequency micro-amplitude vibration, which facilitates the shaking off of mud and sand on the filter steel plate 122.

[0045] In this embodiment, the elastic element 121 is a high-strength rubber damping block or a helical compression spring.

[0046] Please see Figure 1 The system also includes a cleaning component 4, which comprises a support frame 41 and a spray plate 42. The support frame 41 is mounted on the outside of the vehicle cleaning platform 1. The spray plate 42 has two opposite directions and is slidably mounted on the support frame 41. The spray plate 42 has spray holes inside and is configured to communicate with a water supply device to clean the sweeper through the spray holes. By setting the slidably mounted spray plate 42, the device can reciprocate to clean according to the length of the sweeper, thus improving cleaning efficiency.

[0047] In this embodiment, an electric actuator can be installed on the support frame 41. The drive shaft of the electric actuator is connected and fixed to the spray plate 42. Driven by the electric actuator, the spray plate 42 is driven to move back and forth along the support frame 41.

[0048] Please see Figure 3 and Figure 4 It also includes a waste recycling system 5, which includes a bar flotation machine 51 and a chain scraper 52. The bar flotation machine 51 is installed on the outside of the waste washing tank 2 and is used to scoop up floating waste on the surface of the waste washing tank 2. The chain scraper 52 is installed inside the bottom of the waste washing tank 2 and is used to scrape off the sediment at the bottom of the waste washing tank 2. The air bubbles inside the waste washing tank 2 lift the suspended matter to the liquid surface, making it easy for the bar flotation machine 51 to efficiently scoop it up. The chain scraper 52 can also facilitate the mechanical removal of settled heavy sludge.

[0049] In this embodiment, the rake tooth gap of the bar flotation machine 51 is 10mm-20mm, and the running linear speed is 2m / min-5m / min. The chain plate scraper 52 adopts wear-resistant nylon or cast iron scrapers, and the scraper running speed is controlled at a low speed of 0.5m / min-1.0m / min to avoid excessive turbidity of the bottom water.

[0050] Please see Figure 1 It also includes a water recycling system 6 and a waste sorting and treatment system 7. The waste sorting and treatment system 7 includes a waste screening machine 71 and a conveyor 72. One end of the chain plate scraper 52 is located at the bottom of the waste washing tank 2, and the other end extends to the inlet of the waste screening machine 71. The waste screening machine 71 is configured to crush, screen, and sort waste. The wastewater recycling system 6 includes a wastewater tank 61, a chemical dosing and mixing tank 62, a sedimentation tank 63, and a clear water tank 64 connected in sequence. The chemical dosing and mixing tank 62 is connected to the wastewater tank 61 and the sedimentation tank 64 respectively. The sedimentation tank 63 is connected at its upper end to the clear water tank 64 and at its lower end to the dosing and mixing tank 62. The clear water tank 64 is connected to the water supply equipment and is used to add water from the clear water tank 64 into the spray plate 42 for spraying the sweeper. A filter press 65 is provided on one side of the dosing and mixing tank 62 to filter the flocculated sediment inside the dosing and mixing tank 62 and discharge the sewage to the sewage tank 61. By sequentially flocculating, settling, and filtering the sewage, the sewage can be purified into reusable clean water, reducing the water resource cost of sweeper operation.

[0051] In this embodiment, the integrated waste screening machine 71 integrates a twin-shaft crusher and a drum screen, with the crusher having a power of 15kW-30kW. The dosing and mixing tank 62 is equipped with an automatic dosing pump for adding PAC (polyaluminum chloride) and PAM (polyacrylamide) flocculants; The filter press 65 is a plate and frame type or diaphragm type filter press 65, with a filtration pressure of 0.6MPa-1.0MPa. The moisture content of the filter cake after filtration is less than 60%, which is convenient for external transportation and disposal. The entire system is automated through a PLC control cabinet, which automatically adjusts the start and stop of each water pump and air pump 14 based on feedback signals from the liquid level sensor and turbidity sensor.

[0052] The second objective of this invention is to provide a cleaning and recycling process for sweepers.

[0053] The technical solution is as follows: A sweeper cleaning and recycling process, which uses a sweeper cleaning and recycling system to clean the sweeper, includes the following steps: S1: Set up vehicle washing platform 1, drive the sweeper onto vehicle washing platform 1, dump the garbage into garbage washing pool 2, use washing component 4 to wash the sweeper, and turn on air pump 14. S2: Air pump 14 pumps air and draws in sewage, so that the sewage and air are injected into the bottom of the garbage washing tank 2 together, forming an upward bubble flow that breaks up the garbage and separates it into floating garbage and sedimented garbage according to density. S3: Floating garbage is retrieved into the garbage bin, and the chain plate scraper 52 is used to scrape out the sedimented garbage and transport it to the garbage screening machine 71. The garbage screening machine 71 crushes the garbage and sorts it into incineration garbage and landfill garbage. At the same time, the sewage is discharged into the sewage pool 61. S4: The sewage in sewage tank 61 is pumped to chemical dosing and mixing tank 62 using a sewage pump, and chemical dosing and mixing are performed in sewage tank 61 to form primary sewage with sedimentation. S5: The primary sewage is pumped to the sedimentation tank 63 for settling using a sewage pump, and the clear water in the upper layer of the sedimentation tank 63 is pumped into the clear water tank 64. The secondary sewage in the lower layer of the sedimentation tank 63 is pumped back to the dosing and mixing tank 62. S6: The sterilization system is used to sterilize the clean water in the clean water tank 64, and then pumps it to the cleaning component 4 and the garbage screening machine 71 as needed.

[0054] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A sweeper cleaning and recycling system, characterized in that, include: A vehicle washing platform (1) is provided with multiple sewage recycling channels (11) spaced apart inside the vehicle washing platform (1). An elastic filter assembly (12) is provided on the sewage recycling channel (11). An air jet channel (13) communicating with the sewage recycling channel (11) is provided inside the vehicle washing platform (1). An air pump (14) is provided inside the air jet channel (13). The garbage cleaning pool (2) is located on one side of the vehicle washing platform (1). The bottom of the garbage cleaning pool (2) is connected to multiple sewage recycling channels (11). The air pump (14) is designed to spray air and use the negative pressure generated by the airflow at the sewage recycling channel (11) to draw sewage in the sewage recycling channel (11) and spray it into the bottom of the garbage cleaning pool (2), while driving the elastic filter assembly (12) to vibrate.

2. The sweeper cleaning and recycling system according to claim 1, characterized in that, The wastewater recycling channel (11) includes: Drain hole (111), the surface of the vehicle washing platform (1) is provided with a V-shaped recess (15), and the drain hole (111) is provided on the surface of the V-shaped recess (15); Sewage channel (112) is located inside the vehicle washing platform (1) and extends vertically. The upper end of the sewage channel (112) is connected to the floor drain (111). The spray channel (113) is provided inside the vehicle washing platform (1) below the multiple sewage channels (112). The spray channel (113) extends horizontally and is connected to the lower end of the sewage channels (112).

3. The sweeper cleaning and recycling system according to claim 2, characterized in that, The jet passage (13) includes: A venting chamber (131) is provided inside which the air pump (14) is installed, and one end of the venting chamber (131) is connected to the atmosphere; The connecting channel (132) is connected to the other end of the venting chamber (131), and the connecting channel (132) is connected to the injection channel (113). A one-way valve is provided inside the connecting channel (132).

4. The sweeper cleaning and recycling system according to claim 3, characterized in that, The injection channel (113) includes: The channel body (1131) is connected at one end to the connecting channel (132); Diversion cavity (1132), the diversion cavity (1132) is disposed inside the vehicle washing platform (1) and is connected to the other end of the channel body (1131); A branch channel (1133) is provided on the other side of the diversion cavity (1132), and multiple branch channels (1133) are provided at intervals, and the multiple branch channels (1133) are all connected to the diversion cavity (1132).

5. The sweeper cleaning and recycling system according to claim 4, characterized in that: It also includes a grid-shaped spray pipe (3), which is installed inside the bottom of the garbage washing pool (2). The spray pipe (3) is connected to multiple branch channels (1133). Multiple air jet holes (31) are spaced apart on the surface of the spray pipe (3). The height D of the garbage washing pool (2) and the height H of the vehicle washing platform (1) satisfy: D < H.

6. A sweeper cleaning and recycling system according to claim 5, characterized in that, The elastic filter assembly (12) includes: Elastic element (121), which is fixedly assembled on the vehicle washing platform (1) and located on both sides of the drain hole (111); The filter steel plate (122) has an arc-shaped convex surface on its surface and multiple filter holes.

7. A sweeper cleaning and recycling system according to claim 5, characterized in that, It also includes a cleaning component (4), which comprises: A support frame (41) is mounted on the outside of the vehicle washing platform (1); Spray plate (42), the spray plate (42) has two facing directions and is slidably mounted on the support frame (41). The spray plate (42) has spray holes inside. The spray plate (42) is configured to communicate with the water supply equipment and clean the sweeper through the spray holes.

8. A sweeper cleaning and recycling system according to claim 7, characterized in that, It also includes a waste recycling system (5), which comprises: A bar flotation machine (51) is installed on the outside of the garbage washing tank (2) for retrieval of floating garbage on the surface of the garbage washing tank (2); Chain plate scraper (52), which is installed inside the bottom end of the garbage washing pool (2), is used to scrape off the deposited garbage at the bottom of the garbage washing pool (2).

9. A sweeper cleaning and recycling system according to claim 8, characterized in that, It also includes a water recycling system (6) and a waste sorting and treatment system (7); The waste sorting and treatment system (7) includes a waste screening machine (71) and a conveyor (72). One end of the chain plate scraper (52) is located at the bottom of the waste washing pool (2), and the other end extends to the entrance of the waste screening machine (71). The waste screening machine (71) is configured to crush, screen and sort waste. The wastewater recycling system (6) includes a wastewater tank (61), a dosing and stirring tank (62), a sedimentation tank (63), and a clear water tank (64) connected in sequence. The dosing and stirring tank (62) is connected to the wastewater tank (61) and the sedimentation tank (63) respectively. The upper end of the sedimentation tank (63) is connected to the clear water tank (64), and the lower end is connected to the dosing and stirring tank (62). The clear water tank (64) is connected to the water supply equipment and is used to add water from the clear water tank (64) into the spray plate (42) for spraying the sweeper. A filter press (65) is provided on one side of the dosing and stirring tank (62) to filter the flocculated sediment inside the dosing and stirring tank (62) and discharge the wastewater to the wastewater tank (61).

10. A sweeper cleaning and recycling process, characterized in that, The cleaning and recycling system for a sweeper truck as described in any one of claims 7-9 is used to perform the cleaning work on the sweeper truck, including the following steps: S1: Set up a vehicle washing platform (1), drive the sweeper onto the vehicle washing platform (1), dump the garbage into the garbage washing pool (2), use the washing components (4) to wash the sweeper, and turn on the air pump (14). S2: The air pump (14) pumps air and draws in sewage, so that the sewage and air are injected into the bottom of the garbage washing tank (2) and form an upward bubble flow, which breaks up the garbage and separates it into floating garbage and sedimented garbage according to density. S3: Floating garbage is retrieved into the garbage bin, and the sediment is scraped out by the chain plate scraper (52) and transported to the garbage screening machine (71). The garbage screening machine (71) crushes the garbage and classifies it into incineration garbage and landfill garbage. At the same time, the sewage is discharged into the sewage pool (61). S4: The sewage in the sewage tank (61) is pumped to the chemical dosing and stirring tank (62) using a sewage pump, and the sewage tank (61) is dosed and stirred to form primary sewage with sedimentation. S5: The primary sewage is pumped to the sedimentation tank (63) for settling using a sewage pump, and the clear water in the upper layer of the sedimentation tank (63) is pumped into the clear water tank (64). The secondary sewage in the lower layer of the sedimentation tank (63) is pumped back to the dosing and mixing tank (62). S6: The sterilization system is used to sterilize the water in the clean water tank (64), and the water is pumped to the cleaning component (4) and the garbage screening machine (71) as needed.

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