Treatment device for urban car washing wastewater

Abstract

The present invention relates to a treatment device for urban car wash wastewater, comprising a collection tank and a floating debris collection tank, separated by a floating weir wall. A blower is positioned above the collection tank, blowing air toward the floating weir wall. A sludge collection mechanism is provided at the bottom of the collection tank, which can be removed. A drainage mechanism with an opening and closing function is also provided at the bottom of the collection tank. The treatment device of the present invention can separate and remove sludge and floating debris from the wastewater for centralized treatment, effectively reducing the processing volume. Furthermore, the device is integrated and occupies a small footprint, addressing issues such as insufficient on-site installation space for drainage facilities in the car wash industry and substandard wastewater discharge.

Description

Technical Field

[0001] The invention relates to the technical field of municipal engineering, and in particular to a treatment device for urban car washing wastewater. Background Art

[0002] With the rapid growth of car ownership in my country, car washes consume large amounts of water and cause serious pollution. How to treat car wash wastewater has become a technical problem that needs to be solved urgently. The treatment of car wash wastewater is a requirement for water environment improvement.

[0003] Removing sediment and floating debris is a key component of car wash wastewater treatment. Currently, existing methods for treating car wash wastewater typically involve a mixture of sediment and floating debris, resulting in large treatment volumes, difficulty in fully settling sediment, suboptimal floating debris treatment, and substandard wastewater discharge. Therefore, a treatment device suitable for installation in small car washes (stations) is urgently needed to address the challenges of insufficient sediment settling and the difficulty in clearing these facilities, as well as the inconvenience of effectively removing floating debris. This device, designed to address the drainage challenges faced by the car wash industry, will ensure that discharge requirements for car wash wastewater are met. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a treatment device for urban car washing wastewater, which can conveniently separate and remove sediment and floating objects in the wastewater and reduce the treatment volume.

[0005] To achieve the above-mentioned objectives, the present invention provides a treatment device for urban car washing wastewater, comprising a collection tank and a floating object collection tank, wherein the collection tank and the floating object collection tank are separated by a floating weir wall. Above the collection tank, a blower is provided for blowing air toward the floating weir wall. A removable sediment collection mechanism is provided at the bottom of the collection tank. A drainage mechanism with an opening and closing function is also provided at the bottom of the collection tank.

[0006] Furthermore, a drainage mechanism is provided in the floating object collection pool, and the drainage mechanism includes a drainage ditch provided at the bottom of the collection pool, and a drainage grid provided on the drainage ditch for filtering floating objects.

[0007] Furthermore, the drain channel is connected to the collection tank through a connecting pipe, and a float valve is provided at the outlet of the connecting pipe.

[0008] Furthermore, the float valve includes a funnel-shaped valve seat, a valve reservoir installed on the funnel-shaped valve seat, and a ball core installed in the funnel-shaped valve seat. The bottom of the funnel-shaped valve seat is connected to a connecting pipe. The valve reservoir has a pipe opening for water inlet and outlet. When the ball core is located in the funnel-shaped valve seat, it is in sealing contact with the funnel-shaped valve seat.

[0009] Furthermore, a side of the floating weir wall facing the collection pool is a floating object guiding surface, and the floating object guiding surface is inclined from top to bottom with a smooth transition.

[0010] Furthermore, the sediment collection mechanism includes an umbrella-type collector, which includes an umbrella handle, a collection bag, an umbrella ring and a bag ring that are sleeved on the umbrella handle and can move up and down along the umbrella handle, and at least four umbrella ribs distributed circumferentially along the umbrella ring, the upper ends of the umbrella ribs are hinged on the umbrella ring, the bag ring is located below the umbrella ring, and a bag rope is provided between the bag ring and the umbrella ring for connection, an inner hole is provided in the middle of the collection bag and the edge of the inner hole is connected to the bag ring, and the outer edge of the collection bag is connected to the lower ends of each umbrella rib; when the umbrella-type collector is installed in the collection pool, the collection bag is unfolded and covers the bottom of the collection pool.

[0011] Furthermore, the umbrella-type collector further comprises an umbrella cord, the upper end of the umbrella cord is connected to the umbrella ring, and the lower end of the umbrella cord is connected to the outer edge of the collection bag.

[0012] Furthermore, the drainage mechanism includes a drainage hole connected to the bottom of the collection pool, a flap door arranged at the entrance of the drainage hole, a winch arranged above the flap door, and a sling connecting the winch and the flap door.

[0013] Preferably, it further comprises a box body, in which the collection tank, floating object collection tank, floating weir wall and blower are all located.

[0014] Furthermore, the box body is provided with an exhaust port and also includes an exhaust system, wherein the exhaust system includes an exhaust passage arranged in the box body and connected with the exhaust port, and an exhaust fan arranged in the exhaust passage.

[0015] As described above, the processing device according to the present invention has the following beneficial effects:

[0016] By configuring a collection tank, a floating debris collection tank, a floating weir wall, a sediment collection mechanism, and a drainage mechanism, the system first enters the collection tank. The wastewater, which contains sediment, oil, foam, and other floating debris, is buffered in the collection tank. The slow flow rate in the collection tank facilitates sedimentation, allowing sediment and other materials to gradually settle in the sediment collection mechanism at the bottom of the collection tank, while floating debris floats on the surface. As the wastewater level in the collection tank gradually reaches the designed water level and approaches the top of the floating weir wall, a blower is activated, allowing floating debris to flow over the floating weir wall and into the floating debris collection tank. There, the floating debris accumulates, facilitating centralized treatment. Once sediment and other sediment in the collection tank accumulate to a certain level in the umbrella collector, the sediment collection mechanism is removed. Once the sediment is removed from the wastewater, the drainage mechanism is opened to discharge the wastewater out of the collection tank. The flexible, removable umbrella collector facilitates the removal of settled sediment, reducing the volume of the collection tank and effectively minimizing space. The treatment device of the present invention can separate and remove the silt and floating objects in the wastewater, effectively reduce the treatment volume, and has a small footprint. It uses a low-power electric fan, is eco-friendly and low-carbon, and is suitable for wastewater treatment in small car washes (stations). It solves the problems of insufficient on-site installation space for drainage facilities in the industry and mismatched water treatment volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the planar layout of the processing device of the present invention.

[0018] Figure 2 It is a schematic diagram of the longitudinal cross-section structure of the processing device of the present invention.

[0019] Figure 3 It is a structural schematic diagram of the ball valve in the present invention.

[0020] Figure 4 Schematic diagram of the operation of the ball valve in the present invention.

[0021] Figure 5 Schematic diagram of the working of the drainage mechanism in the present invention.

[0022] Figure 6 It is a structural schematic diagram of the sediment collection mechanism in the present invention.

[0023] Figure 7 It is a top view of the sediment collection mechanism of the present invention when it is unfolded.

[0024] Figure 8 This is a schematic diagram of the operation of the sediment collection mechanism of the present invention when it is expanded and retracted.

[0025] Figure 9 It is a structural schematic diagram of the handle of the sediment collection mechanism in the present invention.

[0026] Component number description

[0027] 1 Collection pool

[0028] 2 Floating debris collection pool

[0029] 3 Floating weir wall

[0030] 31 Floating object guide surface

[0031] 4. Hair dryer

[0032] 5 Sediment collection mechanism

[0033] 51 umbrella handle

[0034] 52 Umbrella Ring

[0035] 52a Handle

[0036] 53 ribs

[0037] 54 Collection Bag

[0038] 55 bag ring

[0039] 56 positioning block

[0040] 57 Side Rope

[0041] 58 Bag Rope

[0042] 59 Parachute cord

[0043] 6 Drainage mechanism

[0044] 61 drainage holes

[0045] 62 Knock on the door

[0046] 63 winch

[0047] 64 Sling

[0048] 7. Drainage mechanism

[0049] 71 drainage ditch

[0050] 72 Float Valve

[0051] 721 Funnel-shaped valve seat

[0052] 722 Valve Library

[0053] 723 Core

[0054] 724 Pipeline

[0055] 73 Connecting pipes

[0056] 74 Drainage grille

[0057] 8 cabinets

[0058] 81 Water inlet hole

[0059] 82 air inlet

[0060] 83 Sediment cleaning hole

[0061] 84 Manhole

[0062] 85 floating debris cleaning hole

[0063] 86 exhaust vent

[0064] 9 Exhaust mechanism

[0065] 91 exhaust fan

[0066] 92 Exhaust duct

[0067] 10 Air intake duct

[0068] 11 Water inlet pipe DETAILED DESCRIPTION

[0069] The following describes the implementation of the present invention through specific embodiments. People skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0070] It should be noted that the structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the present invention. Therefore, they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the efficacy and purpose of the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle", etc. quoted in this specification are only for the convenience of description and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0071] See also Figures 1 to 9 The present invention provides a treatment device for urban car washing wastewater, including a collection pool 1 and a floating object collection pool 2. The collection pool 1 and the floating object collection pool 2 are separated by a floating weir wall 3. A blower 4 is provided above the collection pool 1 to blow air toward the floating weir wall 3. A silt collection mechanism that can be removed is provided at the bottom of the collection pool 1; a drainage mechanism 6 with an opening and closing function is also provided at the bottom of the collection pool 1.

[0072] In the present invention, the depth of the collection tank 1 is determined according to the elevation of the water inlet pipe 11 for car washing water, and the volume of the collection tank 1 should meet the water volume for washing a car. The two are determined comprehensively, and the volume of the collection tank 1 should not be too large, so that the cleaning wastewater can be promptly precipitated after flowing in. The floating weir wall 3 is arranged between the collection tank 1 and the floating object collection tank 2, and its height is determined according to the designed water level of the collection tank 1. The collection tank 1 and the floating object collection tank 2 constitute a double tank structure, forming an entire treatment tank, which is used to treat sediments such as mud and sand, and floating objects such as oil and foam. The height difference between the inlet of the drainage mechanism 6 and the bottom of the collection tank 1 is set according to the amount of mud and sand sediments in the collection tank 1 each time it is cleaned.

[0073] The basic working principle of the processing device involved in the present invention is: Figure 2 Urban car wash wastewater contains silt, oil, foam, and other floating materials. The wastewater first enters a collection tank 1, where it accumulates continuously. The wastewater is stagnant in the collection tank 1, allowing sediment to settle. The sediment and other materials gradually settle to the bottom of the collection tank 1 and fall directly into the sediment collection mechanism, while the floating materials float on the surface. When the wastewater level in the collection tank 1 gradually reaches the designed water level A and approaches the top of the floating weir wall 3, a blower 4 is activated, allowing the floating materials, driven by the water flow and wind, to cross the floating weir wall 3 and enter the floating material collection tank 2. There, the floating materials accumulate, increasing their concentration and facilitating centralized treatment. If on-site treatment is required, methods such as felt adsorption, fiber mat adsorption, or biofilm treatment can be installed within the tank, or pumped out for separate treatment. Once the sediment and other materials in the collection tank 1 reach a certain level in an umbrella collector 5, they are removed from the sediment collection mechanism for centralized treatment. Once the sediment in the wastewater is removed, the drain mechanism 6 is activated to discharge the wastewater from the collection tank 1. Then the drainage mechanism 6 is closed and the sediment collection mechanism is replaced, and subsequent wastewater treatment can be carried out. In addition, due to the use of the flexible umbrella collector 5, the sediment can be easily removed, so the volume of the collection tank 1 can be reduced, which can effectively reduce the footprint of the device.

[0074] The treatment device of the present invention can separate and remove the silt and floating objects in the wastewater and treat them centrally, which can effectively reduce the treatment volume. In addition, the device occupies a small area, uses a low-power electric fan, is environmentally friendly and low-carbon, and is suitable for wastewater treatment in small car washes (stations). It solves the problems of insufficient on-site installation space for drainage facilities in the industry and mismatched water treatment volume.

[0075] See also Figures 1 to 9 The present invention will be further described below with reference to a specific embodiment:

[0076] In this embodiment, see Figure 1 and Figure 3As a preferred design, a drainage mechanism 7 is provided in the floating object collection pool 2. The drainage mechanism 7 includes a drainage ditch 71 provided at the bottom of the collection pool 2, and a drainage grille 74 provided on the drainage ditch 71 for filtering floating objects. The drainage ditch 71 is provided on both sides of the bottom of the floating object collection pool 2, and preferably, the bottom of the floating object collection pool 2 is inclined from the middle to the two sides where the drainage ditch 71 is located, and the inclination angle is not less than 2°. The drainage grille 74 has a suitable density and can block floating objects without affecting the passage of water. When floating objects enter the floating object collection pool 2, a portion of water will enter together. In the floating object collection pool 2, the upper part of the liquid is floating objects such as oil and foam, and the lower part is water. The water can be discharged from the drainage ditch 71, while the floating objects are blocked by the drainage grille 74 and left behind. After the floating objects are concentrated, they are easy to handle.

[0077] In this embodiment, see Figure 3 and Figure 4 Furthermore, the drain ditch 71 is connected to the collecting pool 1 through a connecting pipe 73, and a float valve 72 is provided at the outlet of the connecting pipe 73. Specifically, the float valve 72 includes a funnel-shaped valve seat 721, a valve reservoir 722 installed on the funnel-shaped valve seat 721, and a ball core 723 installed in the funnel-shaped valve seat 721. The bottom of the funnel-shaped valve seat 721 is connected to the connecting pipe 73, and the valve reservoir 722 has a pipe opening 724. When the ball core 723 is located in the funnel-shaped valve seat 721, it is in sealing contact with the funnel-shaped valve seat 721. The ball core 723 is a hollow round sphere. The specific gravity of the ball core 723 is slightly greater than the specific gravity of water. The ball core 723 can be a hollow ball made of metal or a hollow ball made of plastic. In order to control the specific gravity of the ball core 723, a hole is drilled in the ball shell, and an appropriate amount of sand is put in. After the requirement is met, the hole is sealed. In the above manner, the water in the floating object collection pool 2 can be returned to the collection pool 1 and then discharged. The float valve 72 is used to control the opening and closing of the action of the water in the floating object collection pool 2 returning to the collection pool 1. Specifically, when the water level in the floating object collection pool 2 is lower than the water level in the collection pool 1 by a certain degree, the float valve 72 is used to control the opening and closing of the action of the water in the floating object collection pool 2 returning to the collection pool 1. Figure 4 As shown in (b), the ball core 723 is tightly attached to the funnel-shaped valve seat 721 under the action of its own weight and the water pressure in the collection tank 1. At this time, the float valve 72 is in a closed state to prevent the water in the collection tank 1 from flowing back into the floating object collection tank 2. When the water level C in the floating object collection tank 2 is higher than the water level B in the collection tank 1 to a certain extent, see Figure 4 As shown in Figure (a), the water pressure in the floating object collection tank 2 overcomes the weight of the ball core 723 and the water pressure in the collection tank 1, lifting the ball core 723 away from the funnel-shaped valve seat 721. The connecting pipe connects to the pipe port 724 on the valve reservoir 722. At this time, the float valve 72 is open, and the water in the floating object collection tank 2 is discharged into the collection tank 1. In this way, the float valve 72 can automatically control the discharge of water from the floating object collection tank 2.

[0078] In this embodiment, see Figure 2 and Figure 3 As a preferred design, the side of the floating weir wall 3 facing the collection pool 1 is a floating object guide surface 31. The floating object guide surface 31 is inclined from top to bottom with a smooth transition, and the floating object guide surface 31 is preferably a curved surface. At this time, the floating weir wall 3 is both a partition member and a floating object guide member. The floating objects are collected on the side of the floating object guide surface 31. When the water level rises to near the top of the floating weir wall 3, under the action of the blower 4, the floating objects cross the top of the floating weir wall 3 along the floating object guide surface 31 and smoothly enter the floating object collection pool 2.

[0079] In this embodiment, see Figure 2 、 Figure 6 、 Figure 7 and Figure 8 As a preferred design, the sediment collection mechanism includes an umbrella-type collector 5, which includes an umbrella handle 51, a collection bag 54, an umbrella ring 52 and a bag ring 55 that are sleeved on the umbrella handle 51 and can move up and down along the umbrella handle 51, and at least three umbrella ribs 53 distributed circumferentially along the umbrella ring 52. The upper ends of the umbrella ribs 53 are hinged to the lower end of the umbrella ring 52, and the bag ring 55 is located below the umbrella ring 52. A bag rope 58 is provided between the bag ring 55 and the umbrella ring 52 for connection. The collection bag 54 has an inner hole in the middle, and the edge of the inner hole is connected to the bag ring 55. The outer edge of the collection bag 54 is connected to the lower end of each umbrella rib 53. When the umbrella-type collector 5 is installed in the collection pool 1, the collection bag 54 is unfolded and covers the bottom of the collection pool 1. The number of umbrella ribs 53 and the shape of the collection bag 54 can be determined according to the shape of the collection pool 1. In addition, U-shaped handles 52a are provided on both sides of the umbrella ring 52. The handles 52a are made of flexible ropes and facilitate the lifting of the umbrella ring 52. The collection bag 54 in the umbrella collector 5 can be made of geotextile or similar materials that can collect soil and are water-permeable. The pore size of the geotextile must match the composition of the collected sediment to prevent large amounts of sediment from being lost while allowing the water in the collection bag 54 to be drained as quickly as possible.

[0080] When using, see Figure 8 As shown in (a), the lower end of the umbrella handle 51 is fixed to the bottom of the collection pool 1 and kept stable. The bag ring 55 is put on the umbrella handle 51 and lowered. Then the umbrella ring 52 is put on 51, and the umbrella ring 52 is operated to move downward. The umbrella ribs 53 rotate outward around their upper end hinge points while moving downward with the umbrella ring 52. The lower ends of the umbrella ribs 53 push the edges of the collection bag 54 outward. At the same time, the bag ring 55 also moves downward. Finally, the collection bag 54 is stretched to the expanded state. The lower ends of the umbrella ribs 53 are against the side wall of the collection pool 1. The edge of the collection bag 54 is close to the side of the collection pool 1. In this way, the collection bag 54 covers the bottom of the collection pool 1, and the sediment and other materials fall into the collection bag 54 after precipitation. When a certain amount of sediment is collected in the collection bag 54, the umbrella collector 5 is folded up. See Figure 8As shown in (b), along the fixed umbrella handle 51, the umbrella ring 52 is pulled upward, and the umbrella ribs 53 rotate inward around their upper end hinge points as the umbrella ring 52 moves upward, and at the same time, the umbrella ring 52 pulls the bag ring 55 upward through the bag rope 58, and the inner and outer edges of the collection bag 54 are lifted up, and the middle part sinks due to the gravity of the sediment, thereby closing the collection bag 54 to form a bag shape, and the sediment is wrapped in the collection bag 54. Finally, the umbrella collector 5 can be taken out of the collection pool 1, and then the umbrella collector 5 can be reused after the sediment is poured out. In actual use, the amount of sediment collected by the umbrella collector 5 can be controlled to no more than 50 kg each time, so manual operation can be used throughout the process. In addition, if conditions permit, an operating platform can be set up, and the corresponding operating mechanism can be used to take out the umbrella collector 5.

[0081] In this embodiment, a locking structure such as a lock card is further provided on the umbrella handle 51, which is used to lock the position of the umbrella ring 52 on the umbrella handle 51 in the open state, thereby stabilizing the state of the umbrella collector 5 when it is opened. Figure 6 and Figure 7 A positioning block 56 is provided at the lower end of the umbrella rib 53, and a side rope 57 is provided at the edge of the collection bag 54. The side rope 57 is fixedly connected to the positioning block 56. An umbrella rope 59 is also connected to the side rope 57. The umbrella rope 59 is arranged between adjacent umbrella ribs 53. The upper end of the umbrella rope 59 is connected to the umbrella ring 52, and the lower end is connected to the side rope 57. When the collection pool 1 is square, see Figure 7 There are four ribs 53, with positioning blocks 56 at the bottom of each rib located at four right angles to the collection pool 1, aligning with the right angles to position the umbrella collector 5. The side cords 57 of the collection bag 54 are conveniently connected to the ribs 53 and the cords 59. When the umbrella ring 52 is pulled upward, the edges of the collection bag 54 are not only gathered by the ribs 53 but also lifted by the cords 59. The cords 59 are made of flexible ropes and are preferably symmetrically arranged. Their number should be determined based on the side length of the collection bag 54. They further facilitate the folding of the collection bag 54, preventing sediment from leaking from the edges during the collection process. They also reduce the number of ribs 53 and simplify the mechanism.

[0082] In this embodiment, see Figure 2 and Figure 5As a preferred design, the drainage mechanism 6 includes a drainage hole 61 connected to the bottom of the collection tank 1, a flap gate 62 provided at the entrance of the drainage hole 61, a winch 63 provided above the flap gate 62, and a sling 64 connecting the winch 63 and the flap gate 62. The flap gate 62 can be a conventional flap gate, and the sling 64 is a steel wire rope. The flap gate 62 is driven to open and close in the moving water by the winch 63 and the sling 64. The flap gate 62 is used to control the collection and discharge of wastewater. When the winch 63 is activated to drive the sling 64 to open the flap gate 62, drainage can begin. When the winch 63 is released, the flap gate 62 closes under its own weight and water pressure, stopping drainage. Preferably, the bottom of the collection tank 1 is approximately 200 mm lower than the entrance of the drainage hole 61.

[0083] In this embodiment, see Figure 1 and Figure 2 As a preferred design, the treatment device further includes a housing 8, with the collection tank 1, floating object collection tank 2, floating weir wall 3, blower 4, and drainage mechanism 6 all located within housing 8. The floating weir wall 3 is positioned horizontally in the middle of housing 8. The collection tank 1 is bounded by the floating weir wall 3 and the front sidewalls of housing 8, while the floating object collection tank 2 is bounded by the floating weir wall 3 and the rear sidewalls of housing 8. Preferably, drainage holes 61 are positioned at the lower end of the floating object collection tank 2. Because the required volume of the floating object collection tank 2 is smaller than that of the collection tank 1 and the bottom of the floating object collection tank 2 is higher than that of the collection tank 1, positioning the drainage holes 61 at the lower end of the floating object collection tank 2, with the tank above and the holes below, creates a more rational and compact layout, which helps reduce the overall size of the treatment device.

[0084] In this embodiment, see Figure 2 The front side of the box body 8 is provided with a water inlet hole 81 for connecting to the water inlet pipe 11. The diameter of the water inlet hole 81 matches the water inlet pipe 11, and the water inlet pipe 11 is used for the entry of cleaning wastewater. The top of the box body 8 is also provided with a sediment cleaning hole 83, an inspection hole 84, and a floating object cleaning hole 85. The sediment cleaning hole 83 is located above the collection tank 1 and is used for placing and removing the umbrella collector 5. The inspection hole 84 is located above the winch 63 and is used for the inspection of the winch 63. The floating object cleaning hole 85 is located above the floating object collection tank 2 and is used to clean floating objects. Cover plates are provided in the inspection hole 84, the sediment cleaning hole 83, and the floating object cleaning hole 85 to prevent debris from entering.

[0085] In this embodiment, the main structure of the box 8, floating weir wall 3, and drainage hole 61 can be made of fiberglass reinforced plastics. As a standardized finished product, fiberglass reinforced plastics have a simple structure and are easy and quick to install. If conditions permit, reinforced concrete can also be used for on-site casting.

[0086] In this embodiment, the housing 8 has an air inlet 82 with a grille inside. An air inlet duct 10 is located inside the housing 8, communicating with the air inlet 82. Both the air inlet 82 and the air inlet duct 10 are located above the collection tank 1. A blower 4 is located at the outlet of the air inlet duct 10. An air exhaust 86 is located inside the housing 8, with a grille inside. An exhaust duct 92 is located inside the outer housing 8, communicating with the air exhaust 86. An exhaust fan 91 is located within the exhaust duct 92. These exhaust duct 92 and the exhaust fan 91 constitute the exhaust system 9. During operation, air enters the exhaust duct 92 through the air inlet 82, is delivered by the blower 4, and blows away floating objects on the water surface. The air is then discharged through the exhaust duct 92 by the exhaust fan 91, creating a continuous cycle that ensures the fan can successfully blow away floating objects.

[0087] In this embodiment, the processing devices are all integrated in the box body 8, which has a compact structure and is convenient for transportation and construction, and can be conducive to device integration, reducing floor space and investment.

[0088] The treatment device of the present invention can be used not only for treating car washing wastewater, but also for treating similar wastewater containing sediments and floating objects.

[0089] In summary, the present invention effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

[0090] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed herein are intended to be covered by the claims of the present invention.

Claims

1. A treatment device for urban car washing wastewater, characterized by: The invention comprises a collection pool (1) and a floating object collection pool (2), wherein the collection pool (1) and the floating object collection pool (2) are separated by a floating weir wall (3), a blower (4) is provided above the collection pool (1) for blowing air toward the floating weir wall (3), a sediment collection mechanism capable of being removed is provided at the bottom of the collection pool (1), and a drainage mechanism (6) with an opening and closing function is also provided at the bottom of the collection pool (1); a drainage mechanism (7) is provided in the floating object collection pool (2), and the drainage mechanism (7) comprises a drainage ditch (71) provided at the bottom of the floating object collection pool (2), and a drainage mechanism (71) provided at the bottom of the floating object collection pool (2). A drainage grille (74) for filtering floating objects is provided on the drainage ditch (71); the drainage ditch (71) is connected to the collection tank (1) via a connecting pipe (73), and a float valve (72) is provided at the outlet of the connecting pipe (73); a side of the floating weir wall (3) facing the collection tank (1) is a floating object guide surface (31), and the floating object guide surface (31) is inclined from top to bottom and has a smooth transition; a box (8) is also included, wherein the collection tank (1), the floating object collection tank (2), the floating weir wall (3) and the blower (4) are all located in the box (8); the box (8 ) is provided with an exhaust port (86), and also includes an exhaust system (9), the exhaust system (9) includes an exhaust channel (92) arranged in the box (8) and connected to the exhaust port (86), and an exhaust fan (91) arranged in the exhaust channel (92); the box (8) is provided with an air inlet (82), and a grille is provided in the air inlet (82), the box (8) is provided with an air inlet channel (10) connected to the air inlet (82), the air inlet (82) and the air inlet channel (10) are both located above the collecting pool (1), and the hair dryer (4) is arranged in the air inlet channel ( 10) outlet; when working, wind enters the air inlet channel (10) from the air inlet (82), is sent out by the blower (4), blows the floating objects on the water surface, and is then discharged by the exhaust fan (91) through the exhaust channel (92); the drainage mechanism (6) includes a drainage hole (61) connected to the bottom of the collection pool (1), a flap door (62) arranged at the entrance of the drainage hole (61), a winch (63) arranged above the flap door (62), and a sling (64) connecting the winch (63) and the flap door (62); the drainage hole (61) is arranged at the lower end of the floating object collection pool (2).

2. The processing device according to claim 1, characterized in that: The float valve (72) comprises a funnel-shaped valve seat (721), a valve reservoir (722) mounted on the funnel-shaped valve seat (721), and a ball core (723) mounted in the funnel-shaped valve seat (721). The bottom of the funnel-shaped valve seat (721) is in communication with the connecting pipe (73). The valve reservoir (722) has a pipe opening (724) for water inlet and outlet. When the ball core (723) is located in the funnel-shaped valve seat (721), it is in sealing contact with the funnel-shaped valve seat (721).

3. The processing device according to claim 1, characterized in that: The sediment collection mechanism comprises an umbrella-type collector (5), the umbrella-type collector (5) comprising an umbrella handle (51), a collection bag (54), an umbrella ring (52) and a bag ring (55) sleeved on the umbrella handle (51) and movable up and down along the umbrella handle (51), and at least four umbrella ribs (53) distributed circumferentially along the umbrella ring (52), the upper ends of the umbrella ribs (53) being hinged on the umbrella ring (52), the bag ring (55) being located below the umbrella ring (52), and a bag rope (58) being provided between the bag ring (55) and the umbrella ring (52) for connection, the collection bag (54) being provided with an inner hole in the middle thereof, and the edge of the inner hole being connected to the bag ring (55), and the outer edge of the collection bag (54) being connected to the lower ends of the umbrella ribs (53); when the umbrella-type collector (55) is installed in the collection pool (1), the collection bag (54) is unfolded and covers the bottom of the collection pool (1).

4. The processing device according to claim 3, characterized in that: The umbrella-type collector (5) further comprises an umbrella cord (59), wherein the upper end of the umbrella cord (59) is connected to the umbrella ring (52) and the lower end is connected to the outer edge of the collection bag (54).

Images