Water recycling construction site vehicle washing facility

Abstract

The utility model belongs to construction site car washing technical field, concretely relates to a water circulation formula construction site car washing facility, including car washing pool and mud -water separating device, the sewage pipe of car washing pool is connected to the sewage inlet of mud -water separating device, the filtered water of mud -water separating device is introduced into the water pipe of car washing pool, mud -water separating device includes cylinder, conveyer belt and water collecting tank, the side of cylinder is distributed with filter screen, water collecting tank is located below the filter screen of cylinder, the through -going of conveyer belt passes through cylinder through the both ends of cylinder, the annular cavity of cylinder is arranged with scraper with the rotation axis of cylinder as center annular array, with the rotation of cylinder, scraper is used to bring the silt that deposits in the bottom of cylinder to conveyer belt, the utility model provides a water circulation formula construction site car washing facility, adopts mud -water separating device and double water source system (clear water supply + recycling water utilization), and the separated clear water is returned to water collecting tank for repeated use of spray head, and the clear water consumption is reduced significantly.

Description

Technical Field

[0001] This utility model belongs to the field of construction site car washing technology, specifically relating to a water-circulating construction site car washing facility. Background Technology

[0002] With the acceleration of urbanization and the rapid development of the construction industry, the pollution problems caused by construction vehicles (such as dump trucks, concrete mixer trucks, and construction machinery) carrying mud, dust, and other pollutants during transportation are becoming increasingly prominent on urban roads and the surrounding environment. To address this challenge, automatic vehicle washing equipment has gradually become standard equipment on construction sites. Its core function is to clean vehicle tires, chassis, and bodies through high-pressure water guns, roller brush systems, or spray devices to reduce mud carried away and meet environmental regulations. However, traditional vehicle washing equipment generally suffers from problems such as high water consumption, low cleaning efficiency, and incomplete wastewater treatment. These problems further restrict the sustainable application of such equipment, especially in arid regions or water-scarce construction sites.

[0003] In the prior art, some car wash equipment attempts to achieve water recycling through simple sedimentation tanks or filtration devices. For example, published patent CN204124111U describes a car wash pool for construction sites that can achieve water recycling, separating mud and sand through physical sedimentation. However, in practical applications, it suffers from low sedimentation efficiency and a large amount of suspended particles remaining, resulting in high turbidity of the circulating water. Long-term use can easily clog the spray pipes and increase maintenance costs.

[0004] In recent years, with increasingly stringent environmental policies (such as the mandatory provisions of the "Water Pollution Prevention and Control Law of the People's Republic of China" regarding construction site wastewater discharge) and the advancement of "dual carbon" goals, the market demand for water-saving and intelligent car wash equipment has increased significantly. Therefore, achieving efficient water resource recycling while ensuring cleaning effectiveness and reducing equipment operation and maintenance costs remains a pressing technical bottleneck that the industry needs to address. Utility Model Content

[0005] This invention aims to solve the problems of poor water recycling efficiency, low efficiency of physical sedimentation for mud-water separation, and easy pipe blockage in current construction site car wash equipment.

[0006] This utility model provides the following technical solution: a water-circulating construction site car washing facility, including a car washing pool and a mud-water separation device; the sewage pipe of the car washing pool is connected to the sewage inlet of the mud-water separation device; the filtered water of the mud-water separation device is introduced into the water pipe of the car washing pool;

[0007] The mud-water separation device includes a drum, a conveyor belt, and a water collection tank. The drum has openings on both ends to form an annular cavity. Filter screens are distributed on the sides of the drum. The drum rotates around the openings at both ends and is supported by a bracket. The water collection tank is located below the filter screens of the drum. The conveyor belt passes through the openings at both ends of the drum. Scrapers are arranged in a circular array around the drum's axis of rotation in the annular cavity of the drum. As the drum rotates, the scrapers are used to carry the mud and sand settled at the bottom of the drum onto the conveyor belt.

[0008] Furthermore, the car wash pool includes a sunken car wash trough, with columns installed on the left and right sides of the sunken car wash trough. Spray nozzles are spaced apart on the columns. The spray nozzles on the left column are connected in series to a first water pipe, and the spray nozzles on the right column are connected in series to a second water pipe. A first water pump is connected to the first water pipe, and a second water pump is connected to the second water pipe. The second water pipe is connected to a water source, and the first water pipe is connected to the water collection tank of the mud-water separation device.

[0009] Furthermore, the bottom plate of the sunken car wash trough is a mesh plate, and the front and back of the bottom plate are sloped; a sewage tank is set at the bottom of the sunken car wash trough, the bottom plate of the sewage tank is inclined to one side, and a sewage outlet is set at the downward inclined end of the sewage tank, and a sewage pump is installed on the sewage outlet; the sewage outlet is connected to the mud-water separation device through a sewage pipe.

[0010] Furthermore, limit rings are provided on the outer rings of the openings on both sides of the roller, and the limit rings on both sides of the roller are rotatably nested in the ring frame of the bracket.

[0011] Furthermore, the bracket is supported by springs at the bottom, and a vibration motor is mounted on the bracket.

[0012] Furthermore, the scraper is parallel to the axis of rotation of the drum, and the two ends of the scraper are connected to the two ends of the drum; the scraper includes two flat plates that are connected at an obtuse angle, and the concave side of the connecting angle of the scraper is in the direction of rotation of the drum.

[0013] Furthermore, a gear ring is installed on the outer ring of the opening on one end face of the roller. The gear ring is coaxial with the roller's rotating shaft. A first drive motor is installed on the bracket, and the gear on the output shaft of the first drive motor meshes with the gear ring.

[0014] Furthermore, the conveyor belt includes a drive roller, a driven roller, a slide plate, a belt, and a support frame. The drive roller and the driven roller are installed at both ends of the slide plate, the belt is looped between the drive roller and the driven roller, the belt slides in contact with the top surface of the slide plate, and the support frame is connected to the slide plate.

[0015] Furthermore, a driven sprocket is provided on the driving roller, a second drive motor is installed on the support frame, a driving sprocket is installed on the output shaft of the second drive motor, and the driving sprocket and the driven sprocket are connected by a chain.

[0016] Furthermore, flushing ports are provided at both the front and back of the downward-sloping side of the sewage tank, and flushing port covers are installed on the flushing ports by bolts.

[0017] Compared with the prior art, the advantages of this utility model are:

[0018] This utility model provides a water-circulating construction site car washing facility, employing a mud-water separation device and a dual water source system (clean water supply + circulating water utilization). The separated clean water flows back to the collection tank for reuse by the spray nozzles, significantly reducing clean water consumption. Wastewater, after separation and treatment, meets standards for reuse or discharge, reducing construction site wastewater pollution and meeting green construction requirements. The sunken car wash trough's bottom plate uses a mesh structure, combined with an inclined wastewater tank bottom plate, to achieve rapid separation and directional collection of mud and wastewater. The dual-sided column spray nozzle group is independently pressurized by dual suction pumps, forming a cross-shaped water curtain covering the entire surface of the vehicle. The sunken car wash trough and wastewater tank are installed entirely underground, with the top flush with the ground, reducing equipment space requirements. The top edge of the sunken car wash trough is reinforced to prevent deformation under pressure or foundation settlement, extending its service life. The circulating water system reduces long-term water costs, and the mud-water separation device reduces off-site treatment costs.

[0019] The vibrating drum-type mud-water separation device employs a circular array of scrapers inside the drum that continuously scrapes up and throws the deposited mud and sand onto the conveyor belt as it rotates, forming a fully mechanized "filtration-scraping-conveyance" process. The vibrating motor breaks the surface tension of the mud and sand particles through high-frequency vibration, forcing water to quickly penetrate the filter screen, improving the filtration efficiency by more than 50% compared to traditional static filtration. At the same time, the vibration can prevent the filter screen from clogging and maintain a stable permeation rate. The mud-water separation device achieves uninterrupted mud-water separation and mud and sand conveying, with a synergistic effect of vibration and filtration. Attached Figure Description

[0020] Figure 1 A schematic diagram of a water-recycled construction site vehicle washing facility;

[0021] Figure 2 This is a schematic diagram of a car wash pool;

[0022] Figure 3 This is a diagram showing the internal structure of a car wash pool.

[0023] Figure 4 A three-dimensional view of the mud-water separation device (from left);

[0024] Figure 5 A three-dimensional view of the mud-water separation device (from right to left);

[0025] Figure 6 This is a schematic diagram of the conveyor belt outputting sediment.

[0026] Figure 7 for Figure 6 Sectional view at point AA;

[0027] Figure 8 This is a schematic diagram of the drum outputting mud and sand.

[0028] In the diagram: 1-Drum; 1.1-Passive opening; 1.2-Filter screen; 1.3-Limiting ring; 2-Conveyor belt; 2.1-Driven roller; 2.2-Driven roller; 2.3-Slide plate; 2.4-Belt; 2.5-Support frame; 2.6-Driven sprocket; 2.7-Second drive motor; 2.8-Driven sprocket; 2.9-Chain; 3-Water collection tank; 4-Bracket; 4.1-Ring frame; 5-Spring; 6-Vibration motor; 7-Ring gear; 8-First drive motor; 9-Gear; 10-Scraper; 11-Mud and sand; 12-Mud and sand transport vehicle; 13-Sewage pipe; 14-First water suction pump; 15-Second water suction pump; 16-First water pipe; 17-Second water pipe; 18-Sunken car wash trough; 19-Column; 20-Sprayer head; 21-Sewage tank; 22-Rinse port cover; 23-Sewage outlet; 24-Sewage pump; 25-Side guard; 26-Water. Detailed Implementation

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] like Figure 1 As shown, a water-circulating construction site vehicle washing facility includes a washing pool and a mud-water separation device; as Figure 2 , Figure 3 As shown: The car wash pool includes a sunken car wash trough 18. The bottom plate of the sunken car wash trough 18 is a mesh plate, and the front and back of the bottom plate are slopes. Vehicles drive in from one side of the slope and drive out from the other side of the slope. Columns 19 are installed on the left and right sides of the sunken car wash trough 18. Spray nozzles 20 are installed on the columns 19 at intervals. The spray nozzles 20 on the left column 19 are connected in series to the first water pipe 16, and the spray nozzles 20 on the right column 19 are connected in series to the second water pipe 17. A first water pump 14 is connected to the first water pipe 16, and a second water pump 15 is connected to the second water pipe 17. The water is pressurized by the first water pump 16 and the second water pump 17 and then sent to the spray nozzles 20, which spray water to wash the vehicle.

[0031] The bottom of the sunken car wash trough 18 is equipped with a sewage tank 21. The sewage after washing the vehicle, carrying mud and sand, flows into the sewage tank 21 through the bottom plate of the sunken car wash trough 18. The bottom plate of the sewage tank 21 is inclined to one side, and a sewage outlet 23 is provided at the downward inclined end of the sewage tank 21. A sewage pump 24 is installed on the sewage outlet 23. The sewage outlet 23 is connected to the mud-water separation device through the sewage pipe 13, and the sewage flows into the mud-water separation device for filtration.

[0032] The sewage tank 21 has flushing ports on both the front and back of the downward-sloping side. The flushing ports are fitted with flushing port covers 22 by bolts. When there is sediment at the bottom of the sewage tank, the flushing port covers 22 are opened for flushing.

[0033] The sunken car wash trough 18 and the sewage tank 21 are buried underground. The top of the sunken car wash trough 18 is flush with the ground. The top edge of the sunken car wash trough 18 is provided with a retaining edge 25 to prevent the sunken car wash trough 18 from sinking.

[0034] The second water pipe 17 connects to the water source, and the first water pipe 16 connects to the water collection tank 3 of the mud-water separation device to realize water recycling.

[0035] like Figure 4 , Figure 5 As shown: The mud-water separation device includes a drum 1, a conveyor belt 2, and a water collection tank 3. The drum 1 has openings 1.1 on both ends, forming an annular cavity. The openings 1.1 are circular and located at the center of the drum 1. Filter screens 1.2 are distributed on the sides of the drum 1, filtering out water from the mud. Depending on the particle size of the mud, the filter screens 1.2 are made of stainless steel or polyurethane. The drum 1 is placed horizontally, rotating around the openings 1.1 at both ends, and is supported by a bracket 4. The water collection tank 3 is located below the filter screens 1.2 of the drum 1 and is used to collect the filtered water from the drum 1. The conveyor belt 2 passes through the openings 1.1 at both ends of the drum 1. Scrapers 10 are arranged in a circular array around the axis of rotation of the drum 1 within the annular cavity of the drum 1. As the drum 1 rotates, the scrapers 10 carry the sediment settled at the bottom of the drum 1 onto the conveyor belt 2.

[0036] like Figure 6 , Figure 8As shown: The drain pipe 13 extends into the drum 1 from one side opening 1.1. The drain pipe 13 is supported by a frame. The muddy water flowing out of the drain pipe 13 enters the annular cavity of the drum 1. The water can pass through the filter screen 1.2 and fall into the water collection tank 3, while the mud and sand are deposited at the bottom of the annular cavity of the drum 1. As the drum 1 rotates, the scrapers 10 in the annular array inside the drum 1 continuously scrape up the deposited mud and sand and throw it onto the conveyor belt 2. The conveyor belt 2 runs continuously, sending the mud and sand out of the drum 1 and onto the mud and sand transport vehicle. The continuous rotation of the drum 1 causes the "filtration position" of the filter screen 1.2 to be constantly changed, preventing the filter screen 1.2 from clogging. At the same time, when the filter screen 1.2 rotates to an inverted position, the mud and sand adhering to the filter screen 1.2 will fall off further. The drain pipe 13 continuously discharges water, and the drum 1 rotates continuously, continuously filtering and continuously outputting mud and sand, forming a fully mechanized "filtration-transport" process, which greatly improves the mud and water separation efficiency.

[0037] Limiting rings 1.3 are provided on the outer circumference of the openings 1.1 on both sides of the roller 1. The limiting rings 1.3 on both sides of the roller 1 are rotatably nested in the ring frame 4.1 of the bracket 4. The limiting rings 1.3 and the ring frame 4.1 cooperate to fix the axial position of the roller 1 and allow it to rotate freely in the circumferential direction. In order to reduce the resistance when the roller 1 rotates, lubricating oil can be applied between the limiting rings 1.3 and the ring frame 4.1. Alternatively, ball bearings can be provided between the limiting rings 1.3 and the ring frame 4.1.

[0038] Alternatively, another assembly method can be used between roller 1 and bracket 4. The outer ring of the opening 1.1 on both sides of roller 1 is still provided with limiting ring 1.3; rollers are provided at equal intervals on the ring frame 4.1 of bracket 4, and the limiting ring 1.3 is nested in the middle of the rollers.

[0039] The support 4 is supported by a spring 5 at the bottom, and a vibration motor 6 is installed on the support 4. When the vibration motor 6 vibrates, it transmits the vibration to the roller 1, which breaks the surface tension of the mud and sand particles through high-frequency vibration, forcing water to quickly penetrate the filter screen 1.2. Furthermore, when the roller 1 rotates to the point where the filter screen 1.2 is inverted, the vibration of the roller 1 can promote the removal of mud and sand from the filter screen 1.2.

[0040] like Figure 7 As shown: the scraper 10 is parallel to the rotating shaft of the drum 1, and the two ends of the scraper 10 are connected to the two ends of the drum 1; the scraper 10 includes two flat plates connected at an obtuse angle, and the concave side of the connecting angle of the scraper 10 is used to store mud and sand to prevent the mud and sand from falling off before the scraper 10 reaches the throwing position and thus failing to fall onto the conveyor belt 2. The concave side of the connecting angle of the scraper 10 is in the same direction as the rotation of the drum 1.

[0041] A gear ring 7 is installed on the outer ring of the opening 1.1 on one end face of the roller 1. The gear ring 7 is coaxial with the rotating shaft of the roller 1. A first drive motor 8 is installed on the bracket 4. The gear 9 on the output shaft of the first drive motor 8 meshes with the gear ring 7. The first drive motor 8 drives the roller 1 to rotate through the meshing of the gear 9 and the gear ring 7.

[0042] The conveyor belt 2 adopts a structure similar to a treadmill, the purpose of which is to reduce the height of the conveyor belt 2 and increase the width of the conveyor belt 2 within the range of the opening 1.1. The conveyor belt 2 includes a drive roller 2.1, a driven roller 2.2, a slide plate 2.3, a belt 2.4, and a support frame 2.5. The drive roller 2.1 and the driven roller 2.2 are installed at both ends of the slide plate 2.3. The belt 2.4 is sleeved between the drive roller 2.1 and the driven roller 2.2. The belt 2.4 slides in contact with the top surface of the slide plate 2.3. Graphite powder can be added between the belt 2.4 and the slide plate 2.3 for lubrication. The support frame 2.5 is connected to the slide plate 2.3.

[0043] A driven sprocket 2.6 is provided on the driving roller 2.1, a second drive motor 2.7 is installed on the support frame 2.5, a driving sprocket 2.8 is installed on the output shaft of the second drive motor 2.7, and the driving sprocket 2.8 and the driven sprocket 2.6 are connected by a chain 2.9; the second drive motor 2.7 drives the driving roller 2.1 to rotate through the sprocket and chain.

[0044] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A water recycling construction site vehicle washing facility characterised in that: Includes a car wash pool and a mud-water separation device; the sewage pipe (13) of the car wash pool is connected to the sewage inlet of the mud-water separation device; the filtered water from the mud-water separation device is introduced into the water pipe of the car wash pool; The mud-water separation device includes a drum (1), a conveyor belt (2) and a water collection tank (3). The two ends of the drum (1) have openings (1.1) to form an annular cavity. The sides of the drum (1) are covered with filter screens (1.2). The drum (1) is rotated around the openings (1.1) at both ends and is supported by a bracket (4). The water collection tank (3) is located below the filter screens (1.2) of the drum (1). The conveyor belt (2) passes through the openings (1.1) at both ends of the drum (1). The annular cavity of the drum (1) is covered with scrapers (10) arranged in a ring around the axis of rotation of the drum (1). As the drum (1) rotates, the scrapers (10) are used to carry the mud and sand settled at the bottom of the drum (1) onto the conveyor belt (2).

2. A water recycling construction site vehicle washing facility according to claim 1 wherein: The car wash pool includes a sunken car wash trough (18), with columns (19) installed on the left and right sides of the sunken car wash trough (18). Spray nozzles (20) are spaced apart on the columns (19). The spray nozzles (20) on the left column (19) are connected in series to the first water pipe (16), and the spray nozzles (20) on the right column (19) are connected in series to the second water pipe (17). The first water pipe (16) is connected to the first water pump (14), and the second water pipe (17) is connected to the second water pump (15). The second water pipe (17) is connected to the water source, and the first water pipe (16) is connected to the water collection tank (3) of the mud-water separation device.

3. The water-circulating construction site vehicle washing facility according to claim 2, characterized in that: The bottom plate of the sunken car wash trough (18) is a mesh plate, and the front and back of the bottom plate are sloped. A sewage tank (21) is provided at the bottom of the sunken car wash trough (18). The bottom plate of the sewage tank (21) is inclined to one side. A sewage outlet (23) is provided at the downward inclined end of the sewage tank (21). A sewage pump (24) is installed on the sewage outlet (23). The sewage outlet (23) is connected to the mud-water separation device through the sewage pipe (13).

4. A water-circulating construction site vehicle washing facility according to claim 1, characterized in that: The outer ring of the opening (1.1) on both sides of the roller (1) is provided with a limiting ring (1.3), and the limiting ring (1.3) on both sides of the roller (1) is rotatably nested in the ring frame (4.1) of the bracket (4).

5. A water-circulating construction site vehicle washing facility according to claim 4, characterized in that: The bracket (4) is supported by a spring (5) at the bottom, and a vibration motor (6) is installed on the bracket (4).

6. A water-circulating construction site vehicle washing facility according to any one of claims 1 to 5, characterized in that: The scraper (10) is parallel to the axis of rotation of the roller (1), and the two ends of the scraper (10) are connected to the two ends of the roller (1); the scraper (10) includes two flat plates connected at an obtuse angle, and the concave side of the connecting angle of the scraper (10) is in the direction of rotation of the roller (1).

7. A water-circulating construction site vehicle washing facility according to claim 4, characterized in that: A gear ring (7) is installed on the outer ring of the opening (1.1) on one end face of the roller (1). The gear ring (7) is coaxial with the rotating shaft of the roller (1). A first drive motor (8) is installed on the bracket (4). The gear (9) on the output shaft of the first drive motor (8) meshes with the gear ring (7).

8. A water-circulating construction site vehicle washing facility according to claim 1, characterized in that: The conveyor belt (2) includes a drive roller (2.1), a driven roller (2.2), a slide plate (2.3), a belt (2.4), and a support frame (2.5). The drive roller (2.1) and the driven roller (2.2) are installed at both ends of the slide plate (2.3). The belt (2.4) is sleeved between the drive roller (2.1) and the driven roller (2.2). The belt (2.4) slides in contact with the top surface of the slide plate (2.3). The support frame (2.5) is connected to the slide plate (2.3).

9. A water-circulating construction site vehicle washing facility according to claim 8, characterized in that: The active roller (2.1) is provided with a driven sprocket (2.6), the support frame (2.5) is equipped with a second drive motor (2.7), the output shaft of the second drive motor (2.7) is equipped with an active sprocket (2.8), and the active sprocket (2.8) and the driven sprocket (2.6) are connected by a chain (2.9).

10. A water-circulating construction site vehicle washing facility according to claim 3, characterized in that: The sewage tank (21) is provided with flushing ports on both the front and back of the downward-sloping side, and flushing port covers (22) are installed on the flushing ports by bolts.

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