Road surface water treatment equipment and treatment method for municipal water conservancy

Abstract

The application discloses a road surface water treatment device and treatment method for municipal water conservancy, which comprises a load frame and a pollution storage box connected with the load frame, a horizontally arranged suction cylinder is installed on the front part of the load frame in a liftable mode, a negative pressure suction pipe driven by a rotary motor is rotationally connected to the inner wall of the suction cylinder, spiral cleaning brush assemblies driven by the negative pressure suction pipe are symmetrically installed on the two sides of the suction cylinder, a negative pressure cylinder is fixedly installed on the surface of the load frame, the surface of the negative pressure cylinder is rotationally communicated with the negative pressure suction pipe through a corrugated connecting pipe, a vacuum pump is fixedly installed on the surface of the pollution storage box, and the port of the vacuum pump is fixedly communicated with the negative pressure cylinder through a vacuum generating pipe. The pollution storage box, spiral conveying and tabletting and spiral filter plate and other structural arrangements enable the device to automatically and efficiently complete the suction and treatment operation of the road surface water in the municipal water conservancy project.

Description

Technical Field

[0001] This invention relates to the field of road surface water treatment technology, and more specifically, to a road surface water treatment device and method for municipal water conservancy. Background Technology

[0002] As we all know, city roads are equipped with drainage outlets to automatically drain rainwater from the road surface into the sewers during rainy days, ensuring smooth traffic flow. However, sometimes things don't go as planned. Due to people's lack of environmental awareness, garbage on the road often enters the sewers along with rainwater, clogging them and causing water to accumulate on the road surface, making it difficult for the water to drain automatically. This is especially true when rainfall is heavy, as the amount of water remaining on the road increases significantly, seriously affecting people's travel.

[0003] To address the problems mentioned in the background art, various types of road surface water treatment equipment have emerged in the prior art. For example, patent document CN115949022A discloses a road construction road surface water treatment device and its usage method. The aforementioned treatment device can automatically locate water accumulation areas on the construction road surface and detect the water depth. However, traditional devices can only absorb road surface water and cannot adsorb dirt and scale on the road surface. At the same time, after water treatment, existing devices are not convenient for integrated solid-liquid separation and purification of water and extrusion dehydration of separated solids, thus having low functionality. Based on this, the present invention provides a road surface water treatment device for municipal water conservancy to solve the problems mentioned in the background art. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, the present invention aims to provide a road surface water treatment device and method for municipal water conservancy projects. Through the structural design of a sludge storage tank, a spiral conveyor plate, and a spiral filter plate, the present invention enables the device to efficiently and automatically complete the removal and treatment of road surface water in municipal water conservancy projects.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a road surface water treatment device for municipal water conservancy, comprising a load frame and a sludge storage tank connected to the load frame. A horizontally positioned suction cylinder is mounted on the front of the load frame, and a negative pressure suction pipe driven by a rotary motor is rotatably connected to the inner wall of the suction cylinder. Spiral cleaning assemblies driven by the negative pressure suction pipe are symmetrically mounted on both sides of the suction cylinder. A negative pressure cylinder is fixedly mounted on the surface of the load frame, and the surface of the negative pressure cylinder is rotatably connected to the negative pressure suction pipe via a corrugated connecting pipe. A vacuum pump is fixedly mounted on the surface of the sludge storage tank, and the port of the vacuum pump is fixedly connected to the negative pressure cylinder via a vacuum generating pipe. A sludge discharge cylinder is provided below the negative pressure cylinder. A material-feeding rotary cylinder is rotatably connected between the opposing surfaces of the pressure cylinder and the slag discharge cylinder. An outer shaft is rotatably connected to the inner wall of the negative pressure cylinder, a central shaft is rotatably connected to the inner wall of the outer shaft, and a mandrel is rotatably connected to the inner wall of the central shaft. A servo motor is mounted on the surface of the negative pressure cylinder. The outer shaft, central shaft, and mandrel are all driven by the servo motor. A spiral conveying plate is fixedly mounted on the circumferential side of the outer shaft, and a spiral filter plate is fixedly mounted on the circumferential side of the central shaft. A three-jaw connecting frame is installed between the opposing surfaces of the mandrel and the material-feeding rotary cylinder. A set of material-feeding plates arranged in a circular array is installed inside the material-feeding rotary cylinder at positions corresponding to the spiral conveying plate and the spiral filter plate. A pumping mechanism is installed at the bottom of the slag discharge cylinder, and a purification component is installed inside the sludge storage tank.

[0008] As a preferred embodiment, a self-driving vehicle body is installed at the bottom of the load rack, a central control unit is fixedly installed on the end face of the load rack, and a set of vertically arranged lifting push rods are installed between the opposite surfaces of the load rack and the suction cylinder.

[0009] As a preferred embodiment, the spiral cleaning assembly includes a bracket fixedly installed on the inner wall of the suction cylinder and a differential shaft rotatably connected to the inner wall of the suction cylinder. The inner wall of the bracket is rotatably connected to the cleaning shaft. A spiral soft brush blade that fits against the suction cylinder is fixedly installed on the circumferential side of the cleaning shaft. A driven bevel gear is fixedly installed at the tail end of the cleaning shaft. A driven gear driven by a negative pressure suction tube and a differential bevel gear that meshes with the driven bevel gear are fixedly installed on the circumferential side of the differential shaft.

[0010] As a preferred embodiment, a driving gear that meshes with the driven gear is fixedly installed on the peripheral side of the negative pressure suction tube, the axis of the negative pressure suction tube is perpendicular to the axis of the suction cylinder, the suction cylinder is a hollow cylindrical structure with openings at both ends, and a guide slope that cooperates with the negative pressure suction tube is fixedly opened inside the suction cylinder.

[0011] As a preferred embodiment, a set of crushing blades arranged in a circular array are installed at the bottom of the negative pressure suction tube and at a position corresponding to the inside of the suction cylinder.

[0012] As a preferred embodiment, the pumping mechanism includes a sludge storage cylinder fixed to the bottom of the sludge discharge cylinder and a pump body fixed to the surface of the sludge storage tank. The sludge discharge cylinder has a set of regularly distributed and vertically arranged guide sludge filter holes inside. The bottom end of the guide sludge filter holes is fixedly connected to the sludge storage cylinder. The inlet port of the pump body is fixedly connected to the sludge storage cylinder, and the outlet port of the pump body is fixedly connected to a drain pipe.

[0013] As a preferred embodiment, the spiral filter disc has vertically arranged filter mesh holes at equal intervals inside, the diameter of the filter mesh holes being the same as the diameter of the guide filter holes, and a downwardly inclined slag discharge pipe is fixedly installed at the bottom end of the slag discharge cylinder, with a valve installed inside the slag discharge pipe.

[0014] As a preferred embodiment, the purification components include an annular filter cotton belt, a drive motor fixed to the surface of the sludge storage tank, a heating plate disposed above the annular filter cotton belt and fixedly connected to the sludge storage tank, and an active roller and a driven roller rotatably connected between the inner surfaces of the sludge storage tank. The output shaft end of the drive motor is fixedly connected to the active roller. The peripheral surfaces of the active roller and the driven roller are both connected to the annular filter cotton belt. A sludge guiding cavity is fixedly opened inside the sludge storage tank at a position corresponding to the lower part of the annular filter cotton belt. A scraper that fits against the annular filter cotton belt is fixedly installed on the surface of the sludge guiding cavity. A drain valve a communicating with the drain cavity is installed on the surface of the sludge storage tank. A drain valve b is fixedly connected to the bottom of the sludge storage tank.

[0015] As a preferred embodiment, a driven bevel gear a is fixedly installed on the upper part of both the outer shaft and the middle shaft, a driven bevel gear b is fixedly installed on the upper part of the spindle, and a transmission bevel gear a and a transmission bevel gear b are fixedly installed on the output shaft end of the servo motor, respectively. The bevel surfaces of the two driven bevel gears a are connected to the transmission bevel gear a, and the two driven bevel gears a are symmetrically arranged about the horizontal plane where the axis of the servo motor is located. The rotation directions of the outer shaft and the middle shaft are opposite, and the circumferential surface of the transmission bevel gear b is connected to the driven bevel gear b.

[0016] As a preferred embodiment, a method for treating surface water accumulation in municipal water conservancy projects includes the following steps:

[0017] SS001, Deployment: Before operation, this equipment is deployed at the designated road surface of the municipal water conservancy project. After deployment, the deployment depth of the suction cylinder is adjusted according to the water depth of the road surface. After the deployment depth of the suction cylinder is adjusted, the bottom surface of the spiral soft brush blade is in contact with the municipal road surface. After the spatial position of the suction cylinder is adjusted, the central control host automatically sets the travel route and travel speed of the self-driving vehicle.

[0018] SS002, Sewage Suction Treatment: During sewage suction treatment, the rotary motor, servo motor, and drive motor output speeds at set settings. The heating plate provides constant-temperature electric heating, and the vacuum pump creates a vacuum at a set power. After the rotary motor starts, two spiral soft brushes transport road sewage and debris to the inside of the suction cylinder, where they are sucked in by the negative pressure suction pipe. The suctioned debris and liquid enter the negative pressure cylinder. When the servo motor starts, it drives the spiral conveyor plate to feed material upwards, and the spiral filter plate to feed material upwards. After the debris and liquid enter the negative pressure cylinder, they are solidified... Solid impurities are trapped by the spiral filter. The wastewater with solid impurities removed enters the sludge storage cylinder through the guide filter holes. The wastewater in the sludge storage cylinder is sucked in by the pump body under negative pressure. The wastewater sucked in by the pump body is discharged to the annular filter cotton belt and purified by the annular filter cotton belt. As solid impurities are continuously trapped on the spiral filter, the spiral conveyor and the spiral filter work together to squeeze and dewater the filtered solid impurities. After the wastewater is completely sucked in, the spiral filter reverses and discharges slag downwards. The solid impurities that have been squeezed and dewatered are then discharged through the slag discharge pipe.

[0019] (III) Beneficial Effects

[0020] Compared with the prior art, the present invention provides a road surface water treatment device and method for municipal water conservancy, which has the following beneficial effects.

[0021] 1. This invention, through the structural design of a sludge storage tank, a spiral conveyor plate, and a spiral filter plate, enables the device to efficiently and automatically complete the removal of surface water in municipal water conservancy projects. Furthermore, when treating surface water, the device, with its double spiral soft brush plate, can not only treat the accumulated water but also efficiently adsorb and remove dirt and scale from the road surface, thereby improving the functionality of the equipment.

[0022] 2. By using a spiral conveyor and a spiral filter, this invention can efficiently complete the filtration process during water treatment. In addition, during the filtration process, the device can efficiently separate the solid and liquid components of the water and forcefully squeeze and dehydrate the separated solids. Through the dual purification structure of the purification components and the spiral filter, the purification effect of this device on road surface water can be effectively improved. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a road surface water treatment device for municipal water conservancy according to the present invention;

[0024] Figure 2 This is a schematic diagram of the rotary motor and lifting push rod of the present invention;

[0025] Figure 3 For the present invention Figure 2 A magnified schematic diagram of the partial structure at point A in the middle;

[0026] Figure 4 This is a schematic cross-sectional view of the suction cylinder and differential shaft of the present invention;

[0027] Figure 5 This is a cross-sectional structural diagram of the rotary motor and pressure cylinder of the present invention;

[0028] Figure 6 For the present invention Figure 5 A magnified schematic diagram of the local structure at point B;

[0029] Figure 7 This is a schematic diagram of the structure of the waste storage box and the material feeding cylinder of the present invention;

[0030] Figure 8 This is a schematic diagram of the structure of the annular filter cotton belt and the heating plate of the present invention;

[0031] Figure 9 This is a cross-sectional structural diagram of the sewage guiding cavity and scraper of the present invention.

[0032] In the diagram: 1. Load frame; 2. Sludge tank; 3. Suction cylinder; 4. Rotary motor; 5. Negative pressure suction pipe; 6. Negative pressure cylinder; 7. Corrugated connecting pipe; 8. Vacuum pump; 9. Slag discharge cylinder; 10. Material feeding swirl cylinder; 11. Outer shaft; 12. Central shaft; 13. Mandrel; 14. Servo motor; 15. Screw conveyor plate; 16. Spiral filter plate; 17. Material feeding plate; 18. Self-driving vehicle body; 19. Lifting push rod; 20. Differential shaft; 21. Cleaning shaft; 22. Spiral soft brush; 23. Driven gear; 24. Drive gear; 25. Crusher bar; 26. Sludge tank; 27. Pump body; 28. Drain pipe; 29. ​​Sludge guide filter hole; 30. Slag discharge pipe; 31. Annular filter cotton belt; 32. Electric heating plate; 33. Sludge guide chamber; 34. Scraper. Detailed Implementation

[0033] The present invention will be further described and illustrated below with reference to specific embodiments and the accompanying drawings:

[0034] Please see Figure 1-9 The present invention is a road surface water treatment device for municipal water conservancy. The technical solution adopted is: including a load frame 1 and a sludge storage tank 2 connected to the load frame 1. A central control host is fixedly installed on the end face of the load frame 1, and a self-driving vehicle body 18 is installed at the bottom of the load frame 1.

[0035] The self-driving vehicle body 18 has its own power system, which drives the load rack 1 to move at a set speed or along a set trajectory.

[0036] A horizontally arranged suction cylinder 3 is installed at the front of the load frame 1, which can be raised and lowered. A set of vertically arranged lifting push rods 19 are installed between the opposite surfaces of the load frame 1 and the suction cylinder 3.

[0037] The suction cylinder 3 is a hollow cylindrical structure with openings at both ends. The inner wall of the suction cylinder 3 is rotatably connected to a negative pressure suction tube 5 driven by a rotary motor 4. The negative pressure suction tube 5 is a hollow tubular structure with openings at both ends. The axis of the negative pressure suction tube 5 is perpendicular to the axis of the suction cylinder 3. The inside of the suction cylinder 3 is fixedly provided with a dirt-guiding inclined surface that cooperates with the negative pressure suction tube 5.

[0038] The design of the guide slope helps to improve the suction strength and suction effect of the negative pressure suction tube 5;

[0039] A set of crushing blades 25 arranged in a circular array are installed at the bottom of the negative pressure suction tube 5 and at the position corresponding to the inside of the suction tube 3. By setting the crushing blades, the solid dirt sucked up can be effectively refined and the dirt can be prevented from clogging at the bottom of the negative pressure suction tube 5.

[0040] Spiral cleaning components driven by negative pressure suction tubes 5 are symmetrically installed on both sides of the suction tube 3;

[0041] The spiral cleaning assembly includes a bracket fixedly installed on the inner wall of the suction cylinder 3 and a differential shaft 20 rotatably connected to the inner wall of the suction cylinder 3. The inner wall of the bracket is rotatably connected to a cleaning shaft 21. A spiral soft brush 22 that fits against the suction cylinder 3 is fixedly installed on the circumferential side of the cleaning shaft 21. A driven bevel gear is fixedly installed at the tail end of the cleaning shaft 21. A driven gear 23 driven by the negative pressure suction tube 5 and a differential bevel gear that meshes with the driven bevel gear are fixedly installed on the circumferential side of the differential shaft 20.

[0042] A drive gear 24 that meshes with the driven gear 23 is fixedly installed on the peripheral side of the negative pressure suction tube 5;

[0043] A negative pressure cylinder 6 is fixedly installed on the surface of the load rack 1. The surface of the negative pressure cylinder 6 is rotatably connected to the negative pressure suction pipe 5 through the corrugated connecting pipe 7. A vacuum pump 8 is fixedly installed on the surface of the sludge storage tank 2. The port of the vacuum pump 8 is fixedly connected to the negative pressure cylinder 6 through the vacuum generating pipe.

[0044] Below the negative pressure cylinder 6 is a slag discharge cylinder 9. A material feeding cylinder 10 is rotatably connected between the opposite surfaces of the negative pressure cylinder 6 and the slag discharge cylinder 9. An outer shaft 11 is rotatably connected to the inner wall of the negative pressure cylinder 6. A middle shaft 12 is rotatably connected to the inner wall of the outer shaft 11. A spindle 13 is rotatably connected to the inner wall of the middle shaft 12. A servo motor 14 is installed on the surface of the negative pressure cylinder 6. The outer shaft 11, the middle shaft 12 and the spindle 13 are all driven by the servo motor 14.

[0045] Both the outer shaft 11 and the middle shaft 12 are fixedly mounted with driven bevel gear a, and the upper part of the spindle 13 is fixedly mounted with driven bevel gear b. The output shaft end of the servo motor 14 is fixedly mounted with transmission bevel gear a and transmission bevel gear b respectively. The bevel surfaces of the two driven bevel gears a are connected to the transmission bevel gear a. The two driven bevel gears a are symmetrically arranged with the horizontal plane where the axis of the servo motor 14 is located as the axis. The rotation directions of the outer shaft 11 and the middle shaft 12 are opposite. The circumferential surface of the transmission bevel gear b is connected to the driven bevel gear b.

[0046] A spiral conveying plate 15 is fixedly installed on the circumferential side of the outer shaft 11, and a spiral filter plate 16 is fixedly installed on the circumferential side of the middle shaft 12. Vertically arranged filter screen holes are equidistantly opened inside the spiral filter plate 16. The size of the filter screen holes can be customized according to actual needs. A three-jaw connecting frame is installed between the opposite surfaces of the core shaft 13 and the feeding cylinder 10.

[0047] Inside the material feeding cylinder 10, and at the position corresponding to the spiral conveying plate 15 and the spiral filter plate 16, a set of material feeding plates 17 distributed in a circular array are installed. A pumping mechanism is installed at the bottom of the slag discharge cylinder 9, and a purification component is installed inside the sludge storage tank 2.

[0048] The pump mechanism includes a sludge storage cylinder 26 fixed to the bottom of the sludge discharge cylinder 9 and a pump body 27 fixed to the surface of the sludge storage tank 2. The sludge discharge cylinder 9 has a set of regularly distributed and vertically arranged guide sludge filter holes 29. The bottom end of the guide sludge filter holes 29 is fixedly connected to the sludge storage cylinder 26. The inlet port of the pump body 27 is fixedly connected to the sludge storage cylinder 26. The outlet port of the pump body 27 is fixedly connected to the drain pipe 28.

[0049] The discharge direction of the drain pipe 28 is directly opposite to the annular filter cotton belt 31.

[0050] The aperture of the filter screen is the same as that of the guide filter hole 29. A downwardly inclined slag discharge pipe 30 is fixedly installed at the bottom of the slag discharge cylinder 9. A valve is installed inside the slag discharge pipe 30.

[0051] The purification components include an annular filter cotton belt 31, a drive motor fixed to the surface of the sludge storage tank 2, an electric heating plate 32 disposed above the annular filter cotton belt 31 and fixedly connected to the sludge storage tank 2, and an active roller and a driven roller rotatably connected between the inner surfaces of the sludge storage tank 2. The output shaft end of the drive motor is fixedly connected to the active roller, and the peripheral surfaces of the active roller and the driven roller are both connected to the annular filter cotton belt 31 for transmission.

[0052] The annular filter cotton belt 31 is made of PP filter cotton.

[0053] Inside the sludge storage tank 2, at a position corresponding to the lower part of the annular filter cotton belt 31, a sludge guiding cavity 33 is fixedly opened. A scraper 34 that fits against the annular filter cotton belt 31 is fixedly installed on the surface of the sludge guiding cavity 33. A drain valve a that communicates with the sludge guiding cavity 33 is installed on the surface of the sludge storage tank 2. A drain valve b that is fixedly connected to the bottom of the sludge storage tank 2 is also fixedly connected.

[0054] Working principle: Before operation, this equipment is deployed at the designated road surface of the municipal water conservancy project. After deployment, the deployment depth of the suction cylinder 3 is adjusted according to the water depth of the road surface. After the deployment depth of the suction cylinder 3 is adjusted, the bottom surface of the spiral soft brush 22 is made to contact and adhere to the municipal road surface. After the spatial position of the suction cylinder 3 is adjusted, the central control host automatically sets the travel route and travel speed of the self-driving vehicle 18.

[0055] During the sewage suction operation, the rotary motor 4, servo motor 14, and drive motor output their speeds at set settings. The heating plate 32 performs constant-temperature electric heating, and the vacuum pump 8 creates a vacuum at a set power. After the rotary motor 4 starts working, the two spiral soft brushes 22 transport the road sewage and dirt to the inside of the suction cylinder 3, where they are sucked up by the negative pressure suction pipe 5. The dirt and sewage sucked up by the negative pressure enter the negative pressure cylinder 6. After the servo motor 14 starts working, it drives the spiral conveying plate 15 to feed the material upwards, and the spiral filter plate 16 to feed the material upwards. After the dirt and sewage enter the negative pressure cylinder 6, solid impurities pass through the spiral filter plate. Wastewater with solid impurities filtered out by the spiral filter plate 16 enters the sludge storage cylinder 26 through the guide filter hole 29. The wastewater in the sludge storage cylinder 26 is sucked in by the negative pressure of the pump body 27. The wastewater sucked in by the pump body 27 is discharged to the annular filter cotton belt 31 and purified by the annular filter cotton belt 31. As solid impurities are continuously intercepted on the spiral filter plate 16, the spiral conveying pressing plate 15 and the spiral filter plate 16 cooperate to squeeze and dewater the filtered solid impurities. After the wastewater is completely sucked out, the spiral filter plate 16 reverses and discharges slag downwards. The solid impurities after being squeezed and dewatered are then discharged through the slag discharge pipe 30.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A road surface water treatment device for municipal water conservancy, comprising a load frame (1) and a storage tank (2) connected with the load frame (1), characterized in that: The front of the load frame (1) is provided with a horizontally arranged suction cylinder (3), the inner wall of the suction cylinder (3) is rotatably connected with a negative pressure suction pipe (5) driven by a rotary motor (4), the two sides of the suction cylinder (3) are symmetrically provided with spiral cleaning brush assemblies driven by the negative pressure suction pipe (5), the surface of the load frame (1) is fixedly provided with a negative pressure cylinder (6), the surface of the negative pressure cylinder (6) is rotatably communicated with the negative pressure suction pipe (5) through a corrugated connecting pipe (7), the surface of the storage tank (2) is fixedly provided with a vacuum pump (8), the port of the vacuum pump (8) is fixedly communicated with the negative pressure cylinder (6) through a vacuum generating pipe, the lower portion of the negative pressure cylinder (6) is provided with a slag discharging cylinder (9), the opposite surfaces of the negative pressure cylinder (6) and the slag discharging cylinder (9) are rotatably communicated with a stirring rotary cylinder (10), the inner wall of the negative pressure cylinder (6) is rotatably connected with an outer shaft (11), the inner wall of the outer shaft (11) is rotatably connected with a middle shaft (12), the inner wall of the middle shaft (12) is rotatably connected with a core shaft (13), the surface of the negative pressure cylinder (6) is provided with a servo motor (14), the outer shaft (11), the middle shaft (12) and the core shaft (13) are all driven by the servo motor (14), the peripheral surface of the outer shaft (11) is fixedly provided with a spiral conveying pressing piece (15), the peripheral surface of the middle shaft (12) is fixedly provided with a spiral filtering piece (16), the opposite surfaces of the core shaft (13) and the stirring rotary cylinder (10) are provided with a three-jaw connecting frame, a group of stirring pieces (17) in circumferential array are arranged in the interior of the stirring rotary cylinder (10) and correspond to the positions between the spiral conveying pressing piece (15) and the spiral filtering piece (16), the bottom of the slag discharging cylinder (9) is provided with a pump liquid mechanism, and the interior of the storage tank (2) is provided with a purification assembly; The spiral cleaning brush assembly comprises a support fixedly installed on the inner wall of the suction cylinder (3) and a differential shaft (20) rotatably connected to the inner wall of the suction cylinder (3), the inner wall of the support is rotatably connected with a cleaning brush shaft (21), the peripheral surface of the cleaning brush shaft (21) is fixedly provided with a spiral soft brush piece (22) abutting the suction cylinder (3), the tail end of the cleaning brush shaft (21) is fixedly provided with a driven bevel gear, and the peripheral surface of the differential shaft (20) is fixedly provided with a driven gear (23) driven by the negative pressure suction pipe (5) and a differential bevel gear meshing with the driven bevel gear; The peripheral surface of the negative pressure suction pipe (5) is fixedly provided with a driving gear (24) meshing with the driven gear (23), the axis of the negative pressure suction pipe (5) is perpendicular to the axis of the suction cylinder (3), the suction cylinder (3) is a hollow cylinder structure with both ends being open, and a pollution guiding slope matched with the negative pressure suction pipe (5) is fixedly arranged in the interior of the suction cylinder (3); A group of crushing knife bars (25) in circumferential array are arranged at the bottom of the negative pressure suction pipe (5) and correspond to the positions in the interior of the suction cylinder (3); The purification assembly respectively comprises an annular filter cotton belt (31), a driving motor fixed to the surface of the dirt storage box (2), an electric heating plate (32) arranged above the annular filter cotton belt (31) and fixedly connected with the dirt storage box (2), and a driving roller and a driven roller rotationally connected between the inner surface of the dirt storage box (2), the output shaft end of the driving motor is fixedly connected with the driving roller, the circumferential side surfaces of the driving roller and the driven roller are drivingly connected with the annular filter cotton belt (31), a dirt guide cavity (33) is fixedly arranged in the dirt storage box (2) and corresponds to the position below the annular filter cotton belt (31), and a scraper (34) is fixedly arranged on the surface of the dirt guide cavity (33) and abuts against the annular filter cotton belt (31).

2. A road surface water treatment apparatus for municipal water according to claim 1, characterized in that: The bottom of the load frame (1) is provided with a self-driving vehicle body (18), and the end surface of the load frame (1) is fixedly provided with a central control host.

3. A road surface water treatment apparatus for municipal water according to claim 2, characterized in that: The pump liquid mechanism comprises a dirt storage cylinder (26) fixed to the bottom of the deslagging cylinder (9) and a pump body (27) fixed to the surface of the dirt storage box (2), a plurality of dirt guide filter holes (29) are vertically arranged and regularly distributed in the interior of the deslagging cylinder (9), the bottom end of the dirt guide filter hole (29) is fixedly communicated with the dirt storage cylinder (26), the liquid inlet port of the pump body (27) is fixedly communicated with the dirt storage cylinder (26), and the liquid outlet port of the pump body (27) is fixedly communicated with a liquid discharge pipe (28).

4. A road surface water treatment apparatus for municipal water according to claim 3, characterized in that: The interior of the spiral filter sheet (16) is equidistantly provided with vertically arranged dirt filter holes, the hole diameter of the dirt filter hole is the same as that of the dirt guide filter hole (29), the bottom end of the deslagging cylinder (9) is fixedly provided with a downwardly inclined deslagging pipe (30), and a valve is arranged in the interior of the deslagging pipe (30).

5. A road surface water treatment apparatus for municipal water according to claim 4, characterized in that: The surface of the dirt storage box (2) is provided with a dirt discharge valve a communicated with the dirt guide cavity (33), and the bottom of the dirt storage box (2) is fixedly communicated with a dirt discharge valve b.

6. A road surface water treatment apparatus for municipal water according to claim 5, characterized in that: The upper portions of the outer shaft (11) and the middle shaft (12) are fixedly provided with driven bevel gears a, the upper portion of the mandrel (13) is fixedly provided with a driven bevel gear b, the output shaft end of the servo motor (14) is fixedly provided with a transmission bevel gear a and a transmission bevel gear b, the tooth surfaces of the two driven bevel gears a are drivingly connected with the transmission bevel gear a, the two driven bevel gears a are symmetrically arranged with the horizontal plane of the axis of the servo motor (14) as the axis, the rotation directions of the outer shaft (11) and the middle shaft (12) are opposite, and the circumferential surface of the transmission bevel gear b is drivingly connected with the driven bevel gear b.

7. The treatment method of claim any one of claims 4-6, wherein, The method comprises the following steps: SS001, arrangement, before work, the equipment is arranged at a designated road surface dirt place of municipal water conservancy, after arrangement, the arrangement depth of the suction cylinder (3) is adjusted according to the water depth of the road surface dirt place, after the arrangement depth of the suction cylinder (3) is adjusted, the bottom surface of the spiral soft brush sheet (22) is in contact with and abuts against the municipal road surface, and the space position of the suction cylinder (3) is adjusted, the advancing route and advancing speed of the self-driving vehicle body (18) are set by the central control host after the space position of the suction cylinder (3) is adjusted. SS002、Suction treatment, when the suction treatment is performed, the rotary motor (4), the servo motor (14) and the driving motor output the rotating speed in the set state, the electric heating plate (32) performs the constant temperature electric heating operation, the vacuum pump (8) creates the vacuum in the set power, after the rotary motor (4) works, the two spiral soft brush pieces (22) transport the road surface sewage and dirt to the inside of the suction cylinder (3) and the negative pressure suction pipe (5) performs the negative pressure suction, the dirt and sewage sucked by the negative pressure suction enter the negative pressure cylinder (6), after the servo motor (14) works, the spiral conveying pressure piece (15) drives the upward feeding, the spiral filter piece (16) feeds upward, after the dirt and sewage enter the negative pressure cylinder (6), the solid impurities are intercepted by the spiral filter piece (16), the sewage filtered by the solid impurities enters the dirt storage cylinder (26) through the dirt filtering hole (29), the sewage in the dirt storage cylinder (26) is sucked by the pump body (27), the sewage sucked by the pump body (27) is discharged to the annular filter cotton belt (31) and is purified by the annular filter cotton belt (31), with the continuous interception of the solid impurities on the spiral filter piece (16), the spiral conveying pressure piece (15) and the spiral filter piece (16) cooperate, so as to extrude and dewater the filtered solid impurities, after the sewage is completely sucked, the spiral filter piece (16) reverses and discharges the slag downward, the solid impurities after the extrusion and dewatering are discharged through the slag discharge pipe (30).

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