Wastewater recovery treatment device for intelligent car washing machine

Abstract

The invention belongs to the technical field of wastewater treatment, and particularly relates to a wastewater recovery treatment device for an intelligent car washer, which comprises a base and a main machine mounted on the end face of the base, the car washer is mounted above the base, a water receiving tank is formed in the end face of the base, and a metal net rack is mounted in the water receiving tank; a waste water treatment box is installed on the end face of the base, and the two U-shaped hollow plates are installed on the two side walls of a portal frame of the car washing machine respectively. The car washing wastewater recycling device can contain wastewater generated by car washing of the car washing machine, can synchronously move along with the portal frame of the car washing machine to adsorb water mist, prevents water mist from escaping, reduces water resource waste, improves wastewater recycling sufficiency, can perform multi-stage treatment of filtration, defoaming, oil removal, neutralization and adsorption on the car washing wastewater, ensures the wastewater recycling effect, and is suitable for popularization and application. The oil in the oil removal area is rapidly removed, and the oil is rapidly floated and defoamed under the assistance of airflow.

Description

Technical Field

[0001] The present invention belongs to the technical field of wastewater treatment, and in particular relates to a wastewater recycling and treatment device for an intelligent car wash machine. Background Art

[0002] With the rapid increase in the number of automobiles, intelligent car wash machines are widely used, and the amount of car wash wastewater generated has increased significantly. Such wastewater contains pollutants such as sediment, oil, and surfactants. If directly discharged, the sediment will make the water body turbid, the oil will hinder the dissolved oxygen in the water body, and the surfactant will increase the chemical oxygen demand, which will seriously pollute the soil and water body and damage the ecological balance. Therefore, there is an urgent need for efficient intelligent car wash machine wastewater treatment technology to achieve up-to-standard discharge and water resource recycling.

[0003] For example, a wastewater recycling and treatment device for an intelligent car wash machine disclosed in the patent publication number CN211367200U can, to a certain extent, prevent wastewater from polluting the environment and reduce water resource waste through multi-stage treatment of car wash wastewater. However, during car washing, due to the impact of the high-pressure water column sprayed by the washing nozzle on the vehicle body, some water will form a water mist phenomenon due to the impact. This part of the water mist is easily escaped with the airflow, which not only reduces the wastewater recovery rate, but also some pollutants will escape with the water mist and pollute the surrounding environment. Secondly, since the space of the intelligent car wash machine is very precious, the integration degree of the wastewater treatment device is not high, resulting in low space utilization rate and restricting the wastewater treatment effect to a certain extent. Summary of the Invention

[0004] The purpose of the present invention is to provide a wastewater recycling and treatment device for an intelligent car wash machine in view of the above problems.

[0005] To achieve the above object, the present invention adopts the following technical solutions: A wastewater recycling and treatment device for an intelligent car wash machine includes a base and a main machine installed on the end face of the base. The car wash machine is installed above the base. A water receiving groove is opened on the end face of the base, and a metal wire frame is installed inside the water receiving groove. A wastewater treatment tank is installed on the end face of the base, and further includes: Two U-shaped hollow plates are respectively installed on two side walls of the gantry of the car wash machine. Absorbent cotton is filled inside both of the two U-shaped hollow plates. A return pipe is fixedly inserted at the bottom of both of the two U-shaped hollow plates, and both of the two return pipes are arranged above the metal wire frame. A negative pressure suction unit is commonly installed on the two U-shaped hollow plates, and a plurality of water mist inlet holes are opened on the side walls of both of the two U-shaped hollow plates; A partition frame is installed inside the wastewater treatment tank, and the partition frame divides the wastewater treatment tank into a primary filtration area, a water storage and defoaming area, an oil removal area, a neutralization area, and an adsorption area. A first pumping assembly is installed on the water receiving groove, and the first pumping assembly transports the wastewater in the water receiving groove to the primary filtration area; The water passing unit is installed inside the wastewater treatment tank. The primary filtration area, water storage and defoaming area, oil removal area, neutralization area, and adsorption area are sequentially connected through the water passing unit, and the adsorption area is connected to the water storage container of the car wash through the water passing unit; The oil removal unit is installed inside the oil removal area.

[0006] Preferably, the negative pressure suction unit includes two negative pressure suction fans. Both negative pressure suction fans are fixedly connected to the side walls of two U-shaped hollow plates, and the two negative pressure suction fans are respectively arranged on both sides of the U-shaped hollow plate. The air outlet ends of the two negative pressure suction fans are fixedly connected and communicated with a connecting hollow plate. An air outlet hose is fixedly inserted into the side wall of the connecting hollow plate. The wastewater treatment tank is equipped with a detachable cover, and the cover is equipped with a flotation mechanism. The air outlet hose is communicated with the oil removal area through the flotation mechanism. Both negative pressure suction fans are electrically connected to the main machine.

[0007] Preferably, the water passing unit includes a square hole opened on the side wall of the primary filtration area, and the primary filtration area is connected to the water storage and defoaming area through the square hole. A stainless steel filter screen is installed inside the square hole. A communicating pipe is fixedly inserted at the lower end of the side wall of the water storage and defoaming area, and the communicating pipe is connected to the oil removal area. A communicating electric control valve is installed inside the communicating pipe. A second pumping component is installed at the lower end of the outer side wall of the wastewater treatment tank. The oil removal area is connected to the neutralization area through the second pumping component. A sector piston plate is slidably arranged inside the neutralization area. An electric hydraulic cylinder is inserted into the end face of the cover, and the telescopic end of the electric hydraulic cylinder is fixedly connected to the sector piston plate. A tail water hole is opened on the side wall of the neutralization area, and the tail water hole is connected to the adsorption area. A third pumping component is fixedly installed on the outer side wall of the wastewater treatment tank, and the third pumping component pumps the water in the adsorption area into the water storage container of the car wash. The communicating electric control valve, the second pumping component, the electric hydraulic cylinder, and the third pumping component are all electrically connected to the main machine.

[0008] Preferably, the oil removal unit includes a support roller arranged in the oil removal area, and an oil-absorbing and water-repellent sleeve is fixedly sleeved on the roller wall of the support roller. An installation groove is opened at one end of the support roller, a support frame is arranged inside the installation groove, and a plurality of ultrasonic transducers are installed on the side wall of the support frame. The end of each ultrasonic transducer is in contact with the inner wall of the oil-absorbing and water-repellent sleeve. An ultrasonic generator is installed on the side wall of the partition frame, and the ultrasonic generator is electrically connected to the ultrasonic transducer through a rotary joint. A motor drive component is installed on the outer side wall of the wastewater treatment tank, and the motor drive component drives the support roller to rotate. The ultrasonic generator and the motor drive component are electrically connected to the main machine. A scraping oil component corresponding to the position of the oil-absorbing and water-repellent sleeve is arranged inside the oil removal area.

[0009] Preferably, the air flotation mechanism includes a sealing cover fixedly installed on the top of the box cover. The air outlet hose is communicated with the inside of the sealing cover. A plurality of air flotation tubes communicated with the sealing cover are fixedly inserted into the end face of the box cover, and the air outlet ends of the air flotation tubes are arranged on the lower side inside the oil removal area. An exhaust defoaming assembly is installed in the water storage and defoaming area, and the exhaust defoaming assembly is communicated with the inside of the oil removal area.

[0010] Preferably, the oil scraping assembly includes an oil scraping plate fixedly installed at a corner on one side inside the oil removal area, and the oil scraping plate is inclined. One end of the oil scraping plate is in sliding contact with the outer side wall of the oil absorption and hydrophobic sleeve. A drain pipe is fixedly inserted into the side wall of the oil removal area above the oil scraping plate. An oil storage cover is fixedly installed on the outer side wall of the wastewater treatment tank, and the drain pipe is communicated with the oil storage cover.

[0011] Preferably, the exhaust defoaming assembly includes an exhaust hollow plate fixedly installed on the upper side of the inner wall of the water storage and defoaming area. A plurality of round holes are jointly opened in the exhaust hollow plate and the side wall of the oil removal area. A plurality of conical jet heads are fixedly inserted into the side wall of the exhaust hollow plate, and the inlet port diameter of each conical jet head is larger than the outlet port diameter.

[0012] Preferably, a tail gas pipe is fixedly inserted into the end face of the box cover, and the inlet end of the tail gas pipe is arranged inside the primary filtration area.

[0013] Compared with the existing technology, the advantages of a wastewater recycling and treatment device for an intelligent car wash machine are as follows: Through the mutual cooperation of the base, the host, the water receiving tank, and the metal wire rack, the wastewater generated during the car wash by the car wash machine can be received. And through the mutual cooperation of the U-shaped hollow plate, the water absorption cotton, the return pipe, the negative pressure suction unit, and a plurality of water mist inlet holes, it can move synchronously with the gantry of the car wash machine during the car wash, so that the water mist generated during the car wash can be quickly and fully adsorbed in a follow-up manner, minimizing the escape of water mist to pollute the environment and reducing the waste of water resources, and improving the adequacy of wastewater recycling.

[0014] Through the mutual cooperation of the partition frame, the primary filtration area, the water storage and defoaming area, the oil removal area, the neutralization area, the adsorption area, the first pumping assembly, and the water passing unit, multi-stage treatment of car wash wastewater such as filtration, defoaming, oil removal, neutralization, and adsorption can be carried out, so as to ensure the effect of wastewater recycling, improve the integration degree of the wastewater treatment device, and reduce the space occupation.

[0015] Through the arranged oil removal unit, the oil liquid in the oil removal area can be quickly removed, and the air flow generated by the negative pressure suction unit can be used to cooperate with the air flotation mechanism to quickly float the oil liquid in the wastewater. At the same time, with the arranged exhaust defoaming assembly, the air flow generated by the negative pressure suction unit can be used to assist in quickly defoaming. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of a waste water recycling and treatment device for an intelligent car washing machine provided by the present invention; Figure 2 It is a partial internal structural schematic diagram of a U-shaped hollow plate of a waste water recycling and treatment device for an intelligent car washing machine provided by the present invention; Figure 3 It is a waste water recycling and treatment device for an intelligent car washing machine provided by the present invention Figure 1 The enlarged structural diagram of part A therein; Figure 4 It is an internal structural schematic diagram of a waste water treatment tank of a waste water recycling and treatment device for an intelligent car washing machine provided by the present invention; Figure 5 It is an internal top view structural schematic diagram of a waste water treatment tank of a waste water recycling and treatment device for an intelligent car washing machine provided by the present invention; Figure 6 It is a waste water recycling and treatment device for an intelligent car washing machine provided by the present invention Figure 5 The enlarged structural diagram of part B therein.

[0017] In the figure: 1 base, 2 main machine, 3 car washing machine, 4 water receiving tank, 5 metal wire rack, 6 waste water treatment tank, 7 U-shaped hollow plate, 8 absorbent cotton, 9 return pipe, 10 negative pressure suction unit, 101 negative pressure suction fan, 102 connecting hollow plate, 103 air outlet hose, 104 box cover, 11 water mist inlet hole, 12 partition rack, 13 primary filtration area, 14 water storage and defoaming area, 15 oil removal area, 16 neutralization area, 17 adsorption area, 18 first pumping assembly, 19 water passing unit, 191 square hole, 192 stainless steel filter screen, 193 connecting pipe, 194 connecting electric control valve, 195 second pumping assembly, 196 sector piston plate, 197 electric hydraulic cylinder, 198 tail water hole, 199 third pumping assembly, 20 oil removal unit, 201 support roller, 202 oil absorbing and water repellent sleeve, 203 installation groove, 204 support frame, 205 ultrasonic transducer, 206 ultrasonic generator, 207 motor drive assembly, 21 air flotation mechanism, 211 sealing cover, 212 air flotation pipe, 22 oil scraping assembly, 221 oil scraping plate, 222 oil discharge pipe, 223 oil storage cover, 23 exhaust and defoaming assembly, 231 exhaust hollow plate, 232 round hole, 233 conical air jet head, 24 tail gas pipe. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0019] Such as Figures 1 - 6As shown in the figure, a waste water recycling and treatment device for an intelligent car washer includes a base 1 and a main machine 2 installed on the end face of the base 1. A car washer 3 is installed above the base 1. A water receiving tank 4 is opened on the end face of the base 1, and a metal wire mesh 5 is installed inside the water receiving tank 4. A waste water treatment tank 6 is installed on the end face of the base 1. It also includes: two U-shaped hollow plates 7, which are respectively installed on the two side walls of the gantry of the car washer 3. Absorbent cotton 8 is filled inside the two U-shaped hollow plates 7, and a return pipe 9 is fixedly inserted at the bottom of each of the two U-shaped hollow plates 7, and the two return pipes 9 are both arranged above the metal wire mesh 5. A negative pressure suction unit 10 is commonly installed on the two U-shaped hollow plates 7. A plurality of water mist inlet holes 11 are opened on the side walls of the two U-shaped hollow plates 7. The negative pressure suction unit 10 includes two negative pressure suction fans 101, and the two negative pressure suction fans 101 are both fixedly connected to the side walls of the two U-shaped hollow plates 7, and the two negative pressure suction fans 101 are respectively arranged on both sides of the U-shaped hollow plate 7. The air outlet ends of the two negative pressure suction fans 101 are fixedly connected and communicated with a connecting hollow plate 102. An air outlet hose 103 is fixedly inserted on the side wall of the connecting hollow plate 102. The waste water treatment tank 6 is equipped with a detachable tank cover 104, and an air flotation mechanism 21 is installed on the tank cover 104. The air outlet hose 103 is communicated with the oil removal area 15 through the air flotation mechanism 21. The two negative pressure suction fans 101 are both electrically connected to the main machine 2. A tail gas pipe 24 is fixedly inserted on the end face of the tank cover 104, and the intake end of the tail gas pipe 24 is arranged inside the primary filtration area 13. The air flotation mechanism 21 includes a sealing cover 211 fixedly installed on the top of the tank cover 104. The air outlet hose 103 is communicated with the inside of the sealing cover 211. A plurality of air flotation pipes 212 communicated with the sealing cover 211 are fixedly inserted on the end face of the tank cover 104, and the air outlet ends of each air flotation pipe 212 are all arranged at the lower side inside the oil removal area 15. An exhaust defoaming assembly 23 is installed in the water storage and defoaming area 14, and the exhaust defoaming assembly 23 is communicated with the inside of the oil removal area 15. The exhaust defoaming assembly 23 includes an exhaust hollow plate 231 fixedly installed on the upper side of the inner wall of the water storage and defoaming area 14, and a plurality of round holes 232 are opened together on the side wall of the exhaust hollow plate 231 and the side wall of the oil removal area 15. A plurality of conical jet heads 233 are fixedly inserted on the side wall of the exhaust hollow plate 231, and the intake port diameter of each conical jet head 233 is larger than the outlet port diameter. The orientations of each conical jet head 233 are different, which improves the comprehensiveness of the impact coverage of the bubbles.

[0020] The partition rack 12 is installed inside the wastewater treatment tank 6, and the partition rack 12 divides the wastewater treatment tank 6 into a primary filtration area 13, a water storage and defoaming area 14, an oil removal area 15, a neutralization area 16, and an adsorption area 17. A first pumping assembly 18 is installed on the water receiving tank 4, and the first pumping assembly 18 conveys the wastewater in the water receiving tank 4 into the primary filtration area 13. The water passing unit 19 is installed inside the wastewater treatment tank 6. The primary filtration area 13, the water storage and defoaming area 14, the oil removal area 15, the neutralization area 16, and the adsorption area 17 are sequentially connected through the water passing unit 19, and the adsorption area 17 is connected to the water storage container of the car washer 3 through the water passing unit 19. The water passing unit 19 includes a square hole 191 opened on the side wall of the primary filtration area 13, and the primary filtration area 13 is connected to the water storage and defoaming area 14 through the square hole 191. A stainless steel filter screen 192 is installed inside the square hole 191. A connecting pipe 193 is fixedly inserted at the lower end of the side wall of the water storage and defoaming area 14, and the connecting pipe 193 is connected to the oil removal area 15. A connecting electric control valve 194 is installed inside the connecting pipe 193. A second pumping assembly 195 is installed at the lower end of the outer side wall of the wastewater treatment tank 6. The oil removal area 15 is connected to the neutralization area 16 through the second pumping assembly 195. A sector piston plate 196 is slidably arranged inside the neutralization area 16. An electric hydraulic cylinder 197 is inserted into the end face of the tank cover 104, and the telescopic end of the electric hydraulic cylinder 197 is fixedly connected to the sector piston plate 196. A tail water hole 198 is opened on the side wall of the neutralization area 16, and the tail water hole 198 is connected to the adsorption area 17. A third pumping assembly 199 is fixedly installed on the outer side wall of the wastewater treatment tank 6, and the third pumping assembly 199 pumps the water in the adsorption area 17 into the water storage container of the car washer 3. The connecting electric control valve 194, the second pumping assembly 195, the electric hydraulic cylinder 197, and the third pumping assembly 199 are all electrically connected to the main machine 2. The first pumping assembly 18, the second pumping assembly 195, and the third pumping assembly 199 all include components such as water pumps and water pipes. When the water pumps work, they can cooperate with the water pipes to pump the liquid.

[0021] The degreasing unit 20 is installed inside the degreasing area 15. The degreasing unit 20 includes a support roller 201 arranged in the degreasing area 15. A grease-absorbing and water-repellent sleeve 202 is fixedly sleeved on the roller wall of the support roller 201. An installation groove 203 is formed at one end of the support roller 201. A support frame 204 is arranged inside the installation groove 203. A plurality of ultrasonic transducers 205 are installed on the side wall of the support frame 204. The end of each ultrasonic transducer 205 is in contact with the inner wall of the grease-absorbing and water-repellent sleeve 202. An ultrasonic generator 206 is installed on the side wall of the partition frame 12. The ultrasonic generator 206 is electrically connected to the ultrasonic transducers 205 through a rotary joint. A motor drive assembly 207 is installed on the outer side wall of the wastewater treatment tank 6. The motor drive assembly 207 drives the support roller 201 to rotate. The ultrasonic generator 206 and the motor drive assembly 207 are electrically connected to the host 2. A grease scraping assembly 22 corresponding to the position of the grease-absorbing and water-repellent sleeve 202 is arranged inside the degreasing area 15. The grease scraping assembly 22 includes a grease scraping plate 221 fixedly installed at a corner on one side inside the degreasing area 15. The grease scraping plate 221 is inclined. One end of the grease scraping plate 221 is in sliding contact with the outer side wall of the grease-absorbing and water-repellent sleeve 202. An oil discharge pipe 222 is fixedly inserted at a position on the side wall of the degreasing area 15 above the grease scraping plate 221. An oil storage cover 223 is fixedly installed on the outer side wall of the wastewater treatment tank 6. The oil discharge pipe 222 is communicated with the oil storage cover 223. An oil outlet pipe is left at the bottom of the oil storage cover 223, and a sealing cover is threadedly assembled at the pipe orifice, which is convenient for cleaning the oil liquid in the oil storage cover 223. The rotary joint is sealed through sealing parts such as a sealing washer and a sealing sleeve to prevent water liquid from entering the inside of the rotary joint.

[0022] The operating principle of the present invention will be described as follows: When washing a car, the host 2 is started. The host 2 will control the car wash agent to work. The car washer 3 will spray the car wash agent and water liquid on the vehicle body, so as to wash the vehicle body. Most of the wastewater generated by the washing will fall into the water receiving tank 4 through the metal wire mesh 5, while a small part of the wastewater will be scattered to form water mist due to the impact with the vehicle body. When washing a car, the host 2 will control the two negative pressure suction fans 101 to work. The two negative pressure suction fans 101 will generate negative pressure suction in the two U-shaped hollow plates 7, so that negative pressure suction can be generated at the water mist inlet holes 11 on the side walls of the two U-shaped hollow plates 7. Since the U-shaped hollow plates 7 are installed on the gantry of the car washer 3, when the gantry of the car washer 3 moves, the two U-shaped hollow plates 7 will also move synchronously. Therefore, when water mist is generated during car washing, the water mist will be immediately sucked into the water mist inlet holes 11 on the side walls of the two U-shaped hollow plates 7 on both sides. Under the blocking action of the water-absorbing cotton 8 inside the U-shaped hollow plate 7, the water mist is intercepted in the water-absorbing cotton 8. The water mist accumulates in the water-absorbing cotton 8 to form large water droplets, and will start to flow downward under the action of its own weight and finally be discharged into the water receiving tank 4 through the return pipe 9, thereby reducing the possibility of water mist escaping and improving the sufficiency of wastewater recovery. After the host 2 is started, it will also control the first pumping component 18 to work. The first pumping component 18 can pump the wastewater in the water receiving tank 4 to the primary filter area 13. Since the primary filter area 13 is connected with the water storage and defoaming area 14 through the square hole 191, the wastewater in the primary filter area 13 will pass through the square hole 191 and enter the water storage and defoaming area 14. Under the blocking effect of the stainless steel filter 192 inside the square hole 191, large particles of debris (such as sand and gravel) will be trapped in the primary filter area 13, so that the wastewater can be preliminarily filtered. After the host 2 is started, it will control the connecting electric control valve 194 to work. At this time, the wastewater in the water storage and defoaming area 14 will enter the oil removal area 15 through the connecting pipe 193. When the wastewater in the oil removal area 15 is at a height position of three-quarters of the oil removal area 15, the liquid level sensor (not shown in the figure) at the bottom of the box cover 104 located above the oil removal area 15 will feedback an electrical signal to the host 2. At this time, the host 2 controls the connecting electric control valve 194 to stop working. Subsequently, the host 2 controls the motor drive component 207 to work. The motor drive component 207 will drive the support roller 201 to rotate, thereby driving the oil absorption and hydrophobic sleeve 202 to rotate. Since the airflow generated by the two negative pressure suction fans 101 will enter the connecting hollow plate 102, the airflow will be discharged from the multiple air flotation tubes 212 through the connecting hollow plate 102, the air outlet hose 103 and the sealing cover 211, and then This will cause bubbles to be generated in the wastewater in the oil removal area 15. When the bubbles flow above the liquid surface, they will drive the oil in the wastewater to move upward. Under the effect of the density difference, the oil will float on the upper side of the water, and the oil-absorbing hydrophobic sleeve 202 will absorb the oil. When the main engine 2 controls the motor drive component 207 to work, it will control the ultrasonic generator 206 to work synchronously. The ultrasonic generator 206 outputs a high-frequency electrical signal to each ultrasonic transducer 205 through a rotary joint. Each ultrasonic transducer 205 can convert the electrical signal into mechanical energy, thereby generating ultrasonic waves. Under the action of ultrasonic waves, the oil absorbed inside the oil-absorbing hydrophobic sleeve 202 will penetrate outward, and the penetrated oil will be scraped off by the oil scraper 221, and flow along the oil scraper 221 to the oil drain pipe 222, and flow into the oil storage cover 223, thereby completing the removal of the oil in the wastewater. The airflow flowing above the liquid surface will enter the exhaust hollow plate 231 through the circular hole 232, and finally be ejected through the conical nozzle 233. Since the diameter of the air inlet port of the conical nozzle 233 is larger than the diameter of the air outlet port, the velocity of the discharged airflow will be accelerated, and the accelerated airflow will impact the foam on the upper side of the wastewater in the water storage and defoaming area 14, so that the foam will explode and disappear, and then the airflow will flow back from the stainless steel filter 192 to the primary filter area 13 (the reverse flow of the airflow can avoid impurities clogging the stainless steel filter 192 as much as possible), and finally the airflow is discharged through the tail pipe 24; After the motor drive assembly 207 works for 5 minutes, the host 2 controls the second pumping assembly 195 to work at a fixed time. The second pumping assembly 195 can transport the wastewater in the oil removal area 15 to the neutralization area 16. After the second pumping assembly 195 finishes working at a fixed time, the wastewater in the oil removal area 15 is drained. At this time, the host 2 continues to control the communication electric control valve 194 to work, so that the wastewater in the water storage and defoaming area 14 is replenished into the oil removal area 15 again, and the above steps are repeated to remove oil from the wastewater; The pH detection probe (not marked in the figure) on the side wall of the neutralization area 16 will detect the acidity and alkalinity of the wastewater, and feedback the result to the host 2 after the measurement. Subsequently, the host 2 controls the medicine box (not marked in the figure) above the box cover 104 to pour acidic or alkaline neutralizing agents into the neutralization area 16 according to the acidity and alkalinity of the wastewater, so as to neutralize the wastewater. After 5 minutes, the host 2 will control the electric hydraulic cylinder 197 to work at a fixed time. The electric hydraulic cylinder 197 can drive the sector piston plate 196 to move upward, so as to lift the wastewater in the neutralization area 16 upward. When the lifted wastewater reaches the position of the tail water hole 198, it will flow into the adsorption area 17. After the wastewater contacts the activated carbon filler (not marked in the figure) in the adsorption area 17, the impurities in the wastewater can be further removed. At the same time, the host 2 controls the third pumping assembly 199 to work. The third pumping assembly 199 can transport the water liquid purified by adsorption to the water storage container of the car wash agent (such as a ton barrel), so as to recycle the wastewater.

[0023] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A wastewater recovery and treatment device for an intelligent car washing machine, comprising a base (1) and a host (2) mounted on the end surface of the base (1); a car washing machine (3) is mounted above the base (1); a water receiving trough (4) is provided on the end surface of the base (1); a metal grid (5) is installed inside the water receiving trough (4); a wastewater treatment box (6) is installed on the end surface of the base (1); and the device is characterized in that: Also includes: Two U-shaped hollow plates (7) are respectively mounted on two side walls of the gantry of the car washing machine (3); the interiors of the two U-shaped hollow plates (7) are filled with absorbent cotton (8); the bottoms of the two U-shaped hollow plates (7) are fixedly plugged with return pipes (9); the two return pipes (9) are arranged above the metal grid (5); the two U-shaped hollow plates (7) are jointly mounted with a negative pressure suction unit (10); and the side walls of the two U-shaped hollow plates (7) are provided with a plurality of water mist inlet holes (11); A partition frame (12) is installed inside the wastewater treatment tank (6), and the partition frame (12) divides the wastewater treatment tank (6) into a primary filtration area (13), a water storage and defoaming area (14), an oil removal area (15), a neutralization area (16), and an adsorption area (17); the water receiving tank (4) is installed with a first pumping assembly (18), and the first pumping assembly (18) transports the wastewater in the water receiving tank (4) to the primary filtration area (13); A water flow unit (19) is installed inside the wastewater treatment tank (6); the primary filtration area (13), the water storage and defoaming area (14), the oil removal area (15), the neutralization area (16) and the adsorption area (17) are connected in sequence through the water flow unit (19); and the adsorption area (17) is connected to the water storage container of the car washing machine (3) through the water flow unit (19); An oil removal unit (20) is installed inside the oil removal area (15).

2. The wastewater recovery and treatment device for an intelligent car washing machine according to claim 1 is characterized in that: The negative pressure suction unit (10) comprises two negative pressure suction fans (101), the two negative pressure suction fans (101) are fixedly connected to the side walls of the two U-shaped hollow plates (7), and the two negative pressure suction fans (101) are respectively arranged on both sides of the U-shaped hollow plates (7), the air outlet ends of the two negative pressure suction fans (101) are fixedly connected to the connecting hollow plate (102), the side walls of the connecting hollow plates (102) are fixedly plugged with an air outlet hose (103), the wastewater treatment box (6) is equipped with a detachable box cover (104), and the box cover (104) is equipped with an air flotation mechanism (21), the air outlet hose (103) is connected to the oil removal area (15) through the air flotation mechanism (21), and the two negative pressure suction fans (101) are electrically connected to the main unit (2).

3. The wastewater recovery and treatment device for an intelligent car washing machine according to claim 2, characterized in that: The water passing unit (19) comprises a square hole (191) formed on the side wall of the primary filtration zone (13), and the primary filtration zone (13) is connected to the water storage and defoaming zone (14) through the square hole (191), a stainless steel filter screen (192) is installed inside the square hole (191), a connecting pipe (193) is fixedly plugged into the lower end of the side wall of the water storage and defoaming zone (14), and the connecting pipe (193) is connected to the oil removal zone (15), and a connecting electric control valve (194) is installed inside the connecting pipe (193), a second pumping assembly (195) is installed at the lower end of the outer wall of the wastewater treatment tank (6), the oil removal zone (15) is connected to the neutralization zone (16) through the second pumping assembly (195), and the inside of the neutralization zone (16) is slidable. A fan-shaped piston plate (196) is provided, an electric hydraulic cylinder (197) is inserted into the end surface of the box cover (104), and the telescopic end of the electric hydraulic cylinder (197) is fixedly connected to the fan-shaped piston plate (196), a tail water hole (198) is opened on the side wall of the neutralization zone (16), and the tail water hole (198) is connected to the adsorption zone (17), a third pumping assembly (199) is fixedly installed on the outer side wall of the wastewater treatment box (6), and the third pumping assembly (199) pumps water in the adsorption zone (17) into the water storage container of the car washing machine (3), and the connecting electric control valve (194), the second pumping assembly (195), the electric hydraulic cylinder (197) and the third pumping assembly (199) are all electrically connected to the main machine (2).

4. The wastewater recovery and treatment device for an intelligent car washing machine according to claim 1, characterized in that: The oil removal unit (20) comprises a support roller (201) arranged in the oil removal area (15), and the roller wall of the support roller (201) is fixedly sleeved with an oil-absorbing hydrophobic sleeve (202), one end of the support roller (201) is provided with a mounting groove (203), a support frame (204) is arranged inside the mounting groove (203), and a plurality of ultrasonic transducers (205) are installed on the side wall of the support frame (204), the end of each of the ultrasonic transducers (205) is in contact with the inner wall of the oil-absorbing hydrophobic sleeve (202), and the partition frame (1 An ultrasonic generator (206) is installed on the side wall of the wastewater treatment box (2), and the ultrasonic generator (206) is electrically connected to the ultrasonic transducer (205) via a rotary joint. A motor drive assembly (207) is installed on the outer side wall of the wastewater treatment box (6), and the motor drive assembly (207) drives the support roller (201) to rotate. The ultrasonic generator (206) and the motor drive assembly (207) are electrically connected to the main machine (2). An oil scraping assembly (22) corresponding to the position of the oil absorption hydrophobic sleeve (202) is arranged inside the oil removal area (15).

5. The wastewater recovery and treatment device for an intelligent car washing machine according to claim 2, characterized in that: The air flotation mechanism (21) comprises a sealing cover (211) fixedly mounted on the top of the box cover (104); the air outlet hose (103) is connected to the interior of the sealing cover (211); a plurality of air flotation tubes (212) connected to the sealing cover (211) are fixedly plugged into the end surface of the box cover (104); and the air outlet end of each air flotation tube (212) is arranged at the lower side of the interior of the oil removal area (15); the water storage defoaming area (14) is equipped with an exhaust defoaming component (23), and the exhaust defoaming component (23) is connected to the interior of the oil removal area (15).

6. The wastewater recovery and treatment device for an intelligent car washing machine according to claim 4, characterized in that: The oil scraper assembly (22) comprises an oil scraper plate (221) fixedly mounted at a corner of one side of the oil removal area (15), and the oil scraper plate (221) is inclined, one end of the oil scraper plate (221) is in sliding contact with the outer wall of the oil absorption and hydrophobic sleeve (202), an oil discharge pipe (222) is fixedly plugged into the side wall of the oil removal area (15) located above the oil scraper plate (221), and an oil storage cover (223) is fixedly mounted on the outer wall of the wastewater treatment tank (6), and the oil discharge pipe (222) is connected to the oil storage cover (223).

7. The wastewater recovery and treatment device for an intelligent car washing machine according to claim 5, characterized in that: The exhaust and defoaming component (23) comprises an exhaust hollow plate (231) fixedly mounted on the upper side of the inner wall of the water storage and defoaming area (14), and the exhaust hollow plate (231) and the side wall of the oil removal area (15) are jointly provided with a plurality of circular holes (232), and a plurality of conical jet heads (233) are fixedly plugged into the side wall of the exhaust hollow plate (231), and the diameter of the air inlet port of each conical jet head (233) is larger than the diameter of the air outlet port.

8. The wastewater recovery and treatment device for an intelligent car washing machine according to claim 2, characterized in that: An exhaust pipe (24) is fixedly plugged into the end surface of the box cover (104), and an air inlet end of the exhaust pipe (24) is arranged inside the primary filter area (13).

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