Construction method of automatic mud-discharging prefabricated steel car washing system

Abstract

The present invention relates to the technical field of car washing systems, and discloses a construction method of an automatic mud-discharging prefabricated steel car washing system, which includes the following construction steps: 1) assembling a base of a spray structure and a three-stage sedimentation tank; 2) excavating a sedimentation tank trough; hoisting the three-stage sedimentation tank into the sedimentation tank trough, and forming a backfill area between the outer periphery of the three-stage sedimentation tank and the side wall of the sedimentation tank trough; 3) backfilling fine-grained soil into the backfill area; 4) excavating a spray trough and a drainage ditch at a construction site; 5) hoisting the base into the spray trough, and forming a water spray base plate on the top of the base, and installing side walls on both sides of the water spray base plate, with multiple side water spray heads on the side walls and multiple bottom water spray heads on the water spray base plate; 6) using gray sand bricks to build in the drainage ditch to form a drainage ditch, and plastering the drainage ditch with waterproof mortar; 7) providing a water pump, fixing the water pump in the three-stage sedimentation tank, and injecting a set amount of water into the tank body; connecting a water pipe.

Description

Technical Field

[0001] The patent of this invention relates to the technical field of car washing systems, specifically, to a construction method of an automatic mud-discharging prefabricated steel car washing system. Background Art

[0002] A conventional car wash system consists of three components: a 30m long, 4.5m wide, and 1m deep wash trough at the rear, a 5m long spray system at the front, and a sedimentation tank structure on the side. The wash system is typically located inside the construction site gate, surrounded by drainage ditches connected to the tertiary sedimentation tanks. Mud and wastewater are handled according to regulations, and the sedimentation tanks require regular cleaning and connection to the municipal drainage network.

[0003] In the existing technology, after a dump truck enters the car wash system at the main entrance, it first enters the wash trough. As the vehicle moves, mud on the sides of the vehicle, chassis, and tires is washed away by the flowing water in the trough and falls into the wash trough. When the dump truck exits the trough, mud on the tires, floor, and lower areas of the vehicle's sides is rinsed clean. The truck then enters the spray system, whose piping is connected to a high-powered pump in the third-stage sedimentation tank. When the pump is activated, the spray pipes automatically spray high-pressure water jets from nozzles to further clean any remaining mud from the higher areas of the vehicle and from the wash trough. Finally, the vehicle exits the spray system, and a manual inspection is performed to check for any remaining mud. If any, it is manually cleaned in the open area in front of the spray system. However, this system requires a large floor space. A conventional car wash system, consisting of the wash trough, spray system, third-stage sedimentation tank, and surrounding drainage ditches, requires a total of approximately 200 square meters. The car wash tank alone occupies a massive 30 x 4.5 m = 135 m2, accounting for more than half of the car wash system. Consequently, traditional car wash systems are unable to adapt to the increasingly limited land availability of urban construction sites. Furthermore, most existing systems are constructed of reinforced concrete, making them difficult to disassemble and reassemble for repeated reuse. Even though some equipment utilizes prefabricated steel sections, this is not fully prefabricated and cannot be fully reused. Furthermore, the car wash system becomes unusable each time sediment accumulates in the car wash tank, hindering construction progress. Summary of the Invention

[0004] The purpose of the present invention is to provide a construction method for an automatic mud-discharging prefabricated steel car washing system, aiming to solve the problem in the prior art that the car washing system occupies a large area.

[0005] The present invention is implemented in this way: the construction method of the automatic mud discharge prefabricated steel car washing system includes the following construction steps:

[0006] 1) Assemble the base of the spray structure and the tertiary sedimentation tank in the factory or construction site;

[0007] 2) Level the ground at the entrance and exit of the construction site according to the external dimensions of the tertiary sedimentation tank, and excavate a sedimentation tank tank; hoist the tertiary sedimentation tank into the sedimentation tank tank, and form a backfill area between the outer periphery of the tertiary sedimentation tank and the side wall of the sedimentation tank tank;

[0008] 3) backfilling the backfill area with fine-grained soil to form a soil layer, and fixing the tertiary sedimentation tank in the sedimentation tank tank through the soil layer; the tertiary sedimentation tank includes a tank body, which includes a head sedimentation tank, an intermediate sedimentation tank, and a terminal sedimentation tank arranged in sequence, a first partition is provided between the head sedimentation tank and the intermediate sedimentation tank, and a second partition is provided between the intermediate sedimentation tank and the terminal sedimentation tank;

[0009] 4) Excavate a spray trough and a drainage ditch at the construction site. The drainage ditch is arranged between the spray trough and the sedimentation tank. One side of the drainage ditch is connected to the spray trough, and the other side of the drainage ditch is connected to the head end sedimentation tank;

[0010] 5) Hoist the base into the spray trough, with a water spray base plate formed on the top of the base and a guide plate in the middle of the base. The guide plate and the water spray base plate are spaced apart to form an overhead layer, which is connected to the drainage ditch; install the side walls on both sides of the water spray base plate, and form a car washing area between the two side walls. The side walls are provided with a plurality of side water spray heads, which are connected to the side water pipes. The water spray base plate is provided with a plurality of bottom water spray heads, which are connected to the bottom water pipes;

[0011] 6) Use lime sand bricks to build drainage ditches, and use waterproof mortar to plaster the drainage ditches;

[0012] 7) Provide a water pump, fix the water pump in the terminal sedimentation tank, and inject a set amount of water into the tank; connect the water pump to a water pipe, and connect the water pipe to the bottom water pipe and the side water pipe;

[0013] When the vehicle enters the car wash area, the side water spray heads and the bottom water spray heads spray water toward the vehicle body. The water carries the mud on the vehicle body through the water spray bottom plate into the overhead layer, forming car wash wastewater. The car wash wastewater flows along the extension direction of the guide plate to the drainage ditch, and then flows into the head end sedimentation tank. The car wash wastewater flows and settles along the head end sedimentation tank, the middle sedimentation tank and the terminal sedimentation tank in sequence.

[0014] Optionally, in the construction step 2), before the tertiary sedimentation tank is hoisted into the sedimentation tank, the bottom of the sedimentation tank is hardened with concrete to form a first hardened layer. When the tank body is placed in the sedimentation tank, the bottom of the tank body is pressed against the first hardened layer.

[0015] Optionally, in the construction step 5), before hoisting the base to the spray tank, the bottom of the spray tank is hardened with concrete to form a second hardened layer. When the base is placed in the spray tank, the base is pressed against the second hardened layer from top to bottom.

[0016] Optionally, the water spray base plate includes a plurality of pressure-bearing rods, and the plurality of pressure-bearing rods are arranged at intervals along the length direction of the water spray base plate, and pressure-bearing intervals are formed between adjacent water spray base plates;

[0017] In the construction step 5), the plurality of bottom water pipes are respectively arranged below the plurality of pressure-bearing intervals, and the bottom water spray heads are embedded in the pressure-bearing intervals.

[0018] Optionally, the upper surface of the bottom water pipe is provided with a plurality of bottom water spray heads, the lower surface of the bottom water pipe is provided with a plurality of lower water spray heads, and the bottom of the lower water spray head has a lower water spray port arranged downward;

[0019] When the car wash wastewater is discharged into the drainage ditch through the overhead layer, the lower water spray port sprays water toward the guide plate, causing the mud in the car wash wastewater to flow into the drainage ditch.

[0020] Optionally, a water collecting pipe is provided above the drainage ditch, the water collecting pipe extends along the length of the drainage ditch, one side of the water collecting pipe is connected to the pumping pipe, and the other side of the water collecting pipe is connected to multiple bottom water pipes, and the multiple bottom water pipes are arranged at intervals along the length of the water collecting pipe; the water collecting pipe is provided with multiple drainage ditch sprinklers, and the multiple drainage ditch sprinklers are arranged at intervals along the length of the water collecting pipe, and the drainage ditch sprinklers are arranged above the drainage ditch;

[0021] When the car wash wastewater flows through the drainage ditch to the head end sedimentation tank, the drainage ditch spray head sprays water toward the drainage ditch. Under the impact of the water, the car wash wastewater in the drainage ditch is forced to flow to the head end sedimentation tank.

[0022] Optionally, the guide plate has an inclined section arranged obliquely, and along the direction toward the drain outlet, the inclined section extends obliquely downward;

[0023] When the car wash wastewater falls onto the inclined section from top to bottom, the car wash wastewater flows downward along the extending direction of the inclined section under the action of gravity and flows into the drainage ditch.

[0024] Optionally, the top of the water spray base plate is higher than the horizontal plane of the construction site. In the construction step 5), after the base is hoisted into the spray trough, end seats are hoisted at the front and rear ends of the base respectively, and the bottom of the end seat is pressed against the bottom of the spray trough. The top of the end seat has an inclined plate arranged at an angle, the inner end of the inclined plate is aligned with the water spray base plate, and the outer end of the inclined plate is aligned with the horizontal plane of the construction site.

[0025] Optionally, in the construction step 5), after the base is hoisted into the spray tank, a plurality of longitudinal rods are installed on both sides of the base, wherein the plurality of longitudinal rods are arranged at intervals along the length direction of the base, and installation intervals are formed between adjacent longitudinal rods;

[0026] A plurality of transverse bars are arranged in the installation interval, the transverse bars extending along the length direction of the base, the ends of the transverse bars are respectively connected to two longitudinal bars arranged at intervals, the plurality of transverse bars are respectively arranged in the middle and top of the installation interval, and the plurality of transverse bars and longitudinal bars enclose a plurality of rectangular installation areas; side panels are fixed in the installation areas, and the plurality of side panels respectively enclose the plurality of installation areas to form the side walls;

[0027] The transverse rod has a transverse surface facing the car wash area, and an inwardly recessed mounting groove is formed on the transverse surface. The mounting groove has a groove opening. The side water pipes are arranged longitudinally, and the side water pipes pass through the mounting groove on the transverse rod from top to bottom. The outer side of the side water pipes is exposed on the outer side of the groove opening, and are connected to a bracket, by which the side water pipes are fixed.

[0028] Optionally, the guide plate has a horizontal section arranged horizontally, the horizontal section being connected to the top of the inclined section; the side water pipe has a lower section extending into the overhead layer, the bottom of the lower section is provided with an end water spray head, the end water spray head has an end water spray port, and the end water spray port is arranged toward the drain outlet; a fixed rotating drum is provided on the horizontal section;

[0029] The plurality of rotating cylinders are spaced apart along the length direction of the horizontal section, and a plurality of rotating blades are provided on the outer circumference of the rotating cylinder, and the bottoms of the plurality of rotating blades are pressed against the horizontal section;

[0030] In the process of washing wastewater being discharged into the drainage ditch through the overhead layer, the end water spray port faces outward toward the water body, and the rotating blades rotate under the impact of the water body. The rotating blades sweep the washing wastewater on the horizontal section, causing the washing wastewater to flow toward the inclined section.

[0031] Compared with the existing technology, the construction method of the automatic mud-discharging prefabricated steel car wash system provided by the present invention forms a sedimentation tank and a spray tank through excavation, and then hoists the prefabricated three-stage sedimentation tank and base to the set position, which is easy to disassemble and can be recycled. It replaces the traditional reinforced concrete car wash tank, reinforced concrete spray system and reinforced concrete three-stage sedimentation tank, achieving the purpose of recycling. Then, it occupies a small area and does not need to construct a large car wash tank like the traditional car wash system. By adopting an extra-long spray structure and setting a bottom high-pressure water spray head and a side high-pressure water spray head, combined with a high-power water pump, the high-pressure water jet sprayed out can impact and clean the mud blocks on the tires and vehicle chassis, achieving the same effect as the car wash tank, so the setting of the car wash tank can be eliminated. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a flow chart of the construction method of the automatic mud-discharging prefabricated steel car washing system provided by the present invention;

[0033] Figure 2 This is a schematic diagram of the layout of the automatic mud-discharging prefabricated steel car washing system provided by the present invention;

[0034] Figure 3 It is a cross-sectional schematic diagram of the automatic mud-discharging prefabricated steel car washing system provided by the present invention;

[0035] Figure 4 It is a cross-sectional schematic diagram of the automatic mud-discharging prefabricated steel car washing system provided by the present invention;

[0036] Figure 5 It is a schematic diagram of the arrangement of the sedimentation structure and drainage ditch provided by the present invention;

[0037] Figure 6 It is a schematic diagram of the arrangement of the side water pipes, bottom water pipes, water collecting pipes and water pumping pipes provided by the present invention;

[0038] Figure 7 It is a partial schematic diagram of the connection between the side wall and the base provided by the present invention;

[0039] Figure 8 It is a partial schematic diagram of the overhead layer provided by the present invention. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0041] The implementation of the present invention is described in detail below with reference to specific embodiments.

[0042] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0043] Reference Figure 1-8 The figure shows a preferred embodiment of the present invention.

[0044] The construction method of the automatic mud-discharging prefabricated steel car washing system provided by the present invention includes the following construction steps:

[0045] 1) Assemble the base of the spray structure and the tertiary sedimentation tank 200 at the factory or construction site;

[0046] 2) Level the ground at the entrance and exit of the construction site according to the dimensions of the tertiary sedimentation tank 200 and excavate a sedimentation tank trough; hoist the tertiary sedimentation tank 200 into the sedimentation tank trough, forming a backfill area between the outer periphery of the tertiary sedimentation tank 200 and the side wall of the sedimentation tank trough;

[0047] 3) Backfilling the backfill area with fine-grained soil to form a soil layer, and fixing the tertiary sedimentation tank 200 in the sedimentation tank tank through the soil layer; the tertiary sedimentation tank 200 includes a tank body, which includes a head sedimentation tank 210, an intermediate sedimentation tank 220, and a terminal sedimentation tank 230 arranged in sequence. A first partition 211 is provided between the head sedimentation tank 210 and the intermediate sedimentation tank 220, and a second partition 221 is provided between the intermediate sedimentation tank 220 and the terminal sedimentation tank 230;

[0048] 4) Excavate a spray trough and a drainage ditch at the construction site. The drainage ditch is arranged between the spray trough and the sedimentation tank. One side of the drainage ditch is connected to the spray trough, and the other side of the drainage ditch is connected to the head end sedimentation tank 210.

[0049] 5) Hoist the base into the spray trough. A water spray base plate 100 is formed on the top of the base. A guide plate 600 is provided in the middle of the base. The guide plate 600 and the water spray base plate 100 are spaced apart from each other to form an overhead layer, which is connected to the drainage ditch. Side walls 400 are installed on both sides of the water spray base plate 100. A car wash area is formed between the two side walls 400. The side walls 400 are provided with multiple side water spray heads 410, which are connected to the side water pipes 420. The water spray base plate 100 is provided with multiple bottom water spray heads 110, which are connected to the bottom water pipes 130.

[0050] 6) Use lime sand bricks to build drainage ditches to form drainage ditches 300, and apply waterproof mortar to the surface of the drainage ditches 300;

[0051] 7) Provide a water pump 240, fix the water pump 240 in the terminal sedimentation tank 230, and inject a set amount of water into the tank; connect the water pump 240 to a water pipe 241, and connect the water pipe 241 to the bottom water pipe 130 and the side water pipe 420;

[0052] When the vehicle enters the car wash area, the side water spray heads 410 and the bottom water spray heads 110 spray water toward the vehicle body. The water carries the mud on the vehicle body through the water spray bottom plate 100 into the overhead layer, forming car wash wastewater. The car wash wastewater flows along the extension direction of the guide plate 600 to the drain ditch 300, and then flows into the head end sedimentation tank 210. The car wash wastewater flows and settles along the head end sedimentation tank 210, the middle sedimentation tank 220 and the terminal sedimentation tank 230 in sequence.

[0053] The above-mentioned construction method for the automatic mud-discharging prefabricated steel car wash system forms a sedimentation tank and a spray tank by excavation, and then hoists the prefabricated three-stage sedimentation tank 200 and the base to the set position, which is easy to disassemble and can be recycled. It replaces the traditional reinforced concrete car wash tank, reinforced concrete spray system and reinforced concrete three-stage sedimentation tank 200, achieving the purpose of recycling. Furthermore, it occupies a small area, eliminating the need for a large car wash tank required by traditional car wash systems. By adopting an extra-long spray structure and setting up bottom and side high-pressure water spray heads, combined with a high-power water pump 240, the high-pressure water jets sprayed out can impact and clean mud from tires and vehicle chassis, achieving the same effect as a car wash tank, so the car wash tank can be eliminated.

[0054] This application eliminates the traditional large car wash tank, retaining only the spray system and three-stage sedimentation system. As a result, the floor space is significantly reduced, and the overall length is reduced from the traditional 30m to 12m. At the same time, a prefabricated steel spray structure and sedimentation structure 200 that are easy to disassemble and assemble are used to replace the traditional reinforced concrete spray system and three-stage sedimentation tank 200.

[0055] In construction step 2), before the tertiary sedimentation tank 200 is hoisted into the sedimentation tank, the bottom of the sedimentation tank is hardened with concrete to form a first hardened layer. When the tank is placed in the sedimentation tank, the bottom of the tank presses against the first hardened layer. This hardens the bottom of the sedimentation tank to ensure its load-bearing capacity.

[0056] In construction step 5), before the base is hoisted into the spray tank, the bottom of the spray tank is hardened with concrete to form a second hardened layer. Once the base is placed in the spray tank, it presses down on this second hardened layer from top to bottom. This hardens the bottom of the spray tank and ensures its load-bearing capacity.

[0057] The water spray base plate 100 includes a plurality of pressure-bearing rods, which are arranged at intervals along the length direction of the water spray base plate 100, and pressure-bearing intervals are formed between adjacent water spray base plates 100;

[0058] In construction step 5), multiple bottom water pipes 130 are arranged below the multiple pressure-bearing spaces, and the bottom sprinkler heads 110 are embedded in the pressure-bearing spaces. This design of the pressure-bearing spaces provides space for the bottom sprinkler heads, preventing vehicles from running over the bottom sprinkler heads 110.

[0059] The upper surface of the bottom water pipe 130 is provided with a plurality of bottom water spray heads 110, and the lower surface of the bottom water pipe 130 is provided with a plurality of lower water spray heads 120. The bottom of the lower water spray heads 120 has a lower water spray port arranged downward.

[0060] As the car wash wastewater is discharged into the gutter 300 through the overhead floor, the lower water nozzle sprays water toward the guide plate 600, causing the mud in the car wash wastewater to flow into the gutter 300. In this way, the design of the lower water nozzle 120 prevents mud from accumulating in the overhead floor. Once mud from the vehicle falls into the overhead floor, it will be flushed by the high-pressure water from the lower water nozzle 120 and flow into the gutter.

[0061] A water collecting pipe 242 is provided above the drainage ditch 300. The water collecting pipe 242 extends along the length of the drainage ditch 300. One side of the water collecting pipe 242 is connected to the pumping pipe 241, and the other side of the water collecting pipe 242 is connected to multiple bottom water pipes 130. The multiple bottom water pipes 130 are arranged at intervals along the length of the water collecting pipe 242. The water collecting pipe 242 is provided with multiple drainage ditch sprinklers 310. The multiple drainage ditch sprinklers 310 are arranged at intervals along the length of the water collecting pipe 242. The drainage ditch sprinklers 310 are arranged above the drainage ditch 300.

[0062] As the car wash wastewater flows through the gutter 300 to the headend sedimentation tank 210, the gutter spray head 310 sprays water toward the gutter 300. The impact of the water forces the car wash wastewater in the gutter 300 to flow into the headend sedimentation tank 210. Thus, the design of the gutter spray head 310 prevents sediment from settling in the gutter 300 and encourages it to flow into the headend sedimentation tank 210.

[0063] The guide plate 600 has an inclined section 610 arranged obliquely. Along the direction toward the drain outlet, the inclined section 610 extends obliquely downward.

[0064] When the car wash wastewater falls onto the inclined section 610 from top to bottom, it flows downward along the extension direction of the inclined section 610 under the action of gravity and flows into the drainage ditch 300. In this way, the guide plate 600 at the bottom of the elevated floor is provided with the inclined section 610, and the sediment cannot be settled on the floor of the elevated floor.

[0065] The top of the spray base plate 100 is elevated above the construction site's horizontal surface. In construction step 5), after the base is hoisted into the spray trough, end blocks 500 are hoisted onto the front and rear ends of the base. The bottoms of the end blocks 500 press against the bottom of the spray trough. The tops of the end blocks 500 feature an inclined plate, the inner ends of which align with the spray base plate 100, while the outer ends align with the construction site's horizontal surface. This ensures that the top of the spray base plate 100 is elevated above the construction site's horizontal surface, facilitating the installation of the side walls 400 and avoiding extensive excavation.

[0066] In construction step 5), after the base is hoisted into the spray tank, multiple longitudinal rods 401 are installed on both sides of the base. The multiple longitudinal rods 401 are arranged at intervals along the length of the base, and installation intervals are formed between adjacent longitudinal rods 401.

[0067] Multiple transverse rods 402 are arranged in the installation interval. The transverse rods 402 extend along the length of the base. The ends of the transverse rods 402 are respectively connected to two longitudinal rods 401 arranged at intervals. The multiple transverse rods 402 are respectively arranged in the middle and top of the installation interval. The multiple transverse rods 402 and longitudinal rods 401 enclose multiple rectangular installation areas. Side panels are fixed in the installation areas. The multiple side panels respectively enclose the multiple installation areas to form side walls 400.

[0068] The transverse bar 402 has a transverse surface facing the car wash area. This surface is formed with an inwardly recessed mounting slot with an opening. The side water pipes 420 are arranged longitudinally, extending from top to bottom through the mounting slot on the transverse bar 402. The outer sides of the side water pipes 420 are exposed outside the opening. Brackets 4020 are connected to the side water pipes 420, securing them. This provides a simple structure for the side wall 400, allowing for quick on-site installation and easy disassembly. Furthermore, the brackets 4020 connect the side water pipes 420 to the transverse bar 402, ensuring a long-term, stable longitudinal arrangement of the side water pipes 420.

[0069] The guide plate 600 has a horizontal section that is arranged horizontally and is connected to the top of the inclined section 610. The side water pipe 420 has a lower section that extends into the overhead layer. The bottom of the lower section is provided with an end water spray head 430. The end water spray head 430 has an end water spray port that is arranged toward the drain outlet. A fixed rotating drum 620 is provided on the horizontal section.

[0070] A plurality of rotating cylinders 620 are arranged at intervals along the length direction of the horizontal section. A plurality of rotating blades 621 are provided on the outer periphery of the rotating cylinder 620. The bottoms of the plurality of rotating blades 621 press against the horizontal section.

[0071] As the wash water is discharged through the overhead floor into the gutter 300, the end water outlet faces outward toward the water body. The rotating blades 621 rotate under the impact of the water body, sweeping the car wash wastewater on the horizontal section and causing it to flow toward the inclined section 610. In this way, the water sprayed by the end high-pressure water nozzle moves from the end of the guide plate 600 toward the gutter 300, promoting the flow of car wash wastewater along the way. The design of the rotating blades 621 also prevents sediment from settling in the horizontal section.

[0072] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. The construction method of the automatic mud-discharging prefabricated steel car washing system is characterized in that: The construction steps include: 1) Assemble the base of the spray structure and the tertiary sedimentation tank in the factory or on the construction site; 2) Level the ground at the entrance and exit of the construction site according to the external dimensions of the tertiary sedimentation tank and excavate the sedimentation tank; hoist the tertiary sedimentation tank into the sedimentation tank, forming a backfill area between the outer periphery of the tertiary sedimentation tank and the side wall of the sedimentation tank; 3) Backfilling the backfill area with fine-grained soil to form a soil layer, and fixing the tertiary sedimentation tank in the sedimentation tank tank through the soil layer; the tertiary sedimentation tank includes a tank body, which includes a head sedimentation tank, an intermediate sedimentation tank, and a terminal sedimentation tank arranged in sequence, a first partition is provided between the head sedimentation tank and the intermediate sedimentation tank, and a second partition is provided between the intermediate sedimentation tank and the terminal sedimentation tank; 4) Excavate a spray trough and a drainage ditch at the construction site. The drainage ditch is arranged between the spray trough and the sedimentation tank. One side of the drainage ditch is connected to the spray trough, and the other side of the drainage ditch is connected to the head end sedimentation tank; 5) Hoist the base into the spray trough. A water spray base is formed on the top of the base. A guide plate is provided in the middle of the base. The guide plate and the water spray base are spaced apart to form an overhead layer. The overhead layer is connected to the drainage ditch. Side walls are installed on both sides of the water spray base. A car wash area is formed between the two side walls. The side walls are provided with multiple side water spray heads, which are connected to the side water pipes. The water spray base is provided with multiple bottom water spray heads, which are connected to the bottom water pipes. 6) Use lime sand bricks to build drainage ditches, and use waterproof mortar to plaster the drainage ditches; 7) Provide a water pump, fix the water pump in the terminal sedimentation tank, and inject a set amount of water into the tank; connect the water pump to the water pipe, and connect the water pipe, the bottom water pipe, and the side water pipe to each other; When a vehicle enters the car wash area, the side water spray heads and the bottom water spray heads spray water toward the vehicle. The water carries the mud on the vehicle through the water spray bottom plate into the overhead layer, forming car wash wastewater. The car wash wastewater flows along the extension direction of the guide plate into the drainage ditch, and then flows into the head end sedimentation tank. The car wash wastewater flows and settles in the head end sedimentation tank, the middle sedimentation tank and the terminal sedimentation tank in sequence. The guide plate has an inclined section that is arranged obliquely, and the inclined section extends obliquely downward in the direction toward the drain outlet; when the car wash wastewater falls from top to bottom onto the inclined section, under the action of gravity, the car wash wastewater flows downward along the extension direction of the inclined section and flows into the drain ditch; The guide plate has a horizontal section arranged horizontally, and the horizontal section is connected to the top of the inclined section; the side water pipe has a lower section extending into the overhead layer, and the bottom of the lower section is provided with an end water spray head, and the end water spray head has an end water spray port, and the end water spray port is arranged toward the drain outlet; the horizontal section is provided with a fixed rotating drum; The plurality of rotating cylinders are spaced apart along the length direction of the horizontal section, and a plurality of rotating blades are provided on the outer circumference of the rotating cylinder, and the bottoms of the plurality of rotating blades are pressed against the horizontal section; In the process of washing wastewater being discharged into the drainage ditch through the overhead layer, the end water spray port faces outward toward the water body, and the rotating blades rotate under the impact of the water body. The rotating blades sweep the washing wastewater on the horizontal section, causing the washing wastewater to flow toward the inclined section.

2. The construction method of the automatic mud-discharging prefabricated steel car washing system according to claim 1, characterized in that: In the construction step 2), before the tertiary sedimentation tank is hoisted into the sedimentation tank, the bottom of the sedimentation tank is hardened with concrete to form a first hardened layer. When the tank body is placed in the sedimentation tank, the bottom of the tank body is pressed against the first hardened layer.

3. The construction method of the automatic mud-discharging prefabricated steel car washing system according to claim 1, characterized in that: In the construction step 5), before the base is hoisted to the spray tank, the bottom of the spray tank is hardened with concrete to form a second hardened layer. When the base is placed in the spray tank, the base is pressed against the second hardened layer from top to bottom.

4. The construction method of the automatic mud-discharging prefabricated steel car washing system according to claim 1 is characterized in that: The water spray base plate includes a plurality of pressure-bearing rods, which are arranged at intervals along the length direction of the water spray base plate, and pressure-bearing intervals are formed between adjacent water spray base plates; In the construction step 5), the plurality of bottom water pipes are respectively arranged below the plurality of pressure-bearing intervals, and the bottom water spray heads are embedded in the pressure-bearing intervals.

5. The construction method of the automatic mud-discharging prefabricated steel car washing system according to claim 4 is characterized in that: The upper surface of the bottom water pipe is provided with a plurality of bottom water spray heads, the lower surface of the bottom water pipe is provided with a plurality of lower water spray heads, and the bottom of the lower water spray head has a lower water spray port arranged downward; When the car wash wastewater is discharged into the drainage ditch through the overhead layer, the lower water spray port sprays water toward the guide plate, causing the mud in the car wash wastewater to flow into the drainage ditch.

6. The construction method of the automatic mud-discharging prefabricated steel car washing system according to claim 1, characterized in that: A water collecting pipe is provided above the drainage ditch, and the water collecting pipe extends along the length of the drainage ditch. One side of the water collecting pipe is connected to the pumping pipe, and the other side of the water collecting pipe is connected to multiple bottom water pipes, and the multiple bottom water pipes are arranged at intervals along the length of the water collecting pipe; a plurality of drainage ditch sprinklers are provided on the water collecting pipe, and the multiple drainage ditch sprinklers are arranged at intervals along the length of the water collecting pipe, and the drainage ditch sprinklers are arranged above the drainage ditch; When the car wash wastewater flows through the drainage ditch to the head end sedimentation tank, the drainage ditch spray head sprays water toward the drainage ditch. Under the impact of the water, the car wash wastewater in the drainage ditch is forced to flow to the head end sedimentation tank.

7. The construction method of the automatic mud-discharging prefabricated steel car washing system according to claim 5 is characterized in that: The top of the water spray base plate is higher than the horizontal plane of the construction site. In the construction step 5), after the base is hoisted into the spray trough, end seats are hoisted at the front and rear ends of the base respectively, and the bottom of the end seat is pressed against the bottom of the spray trough. The top of the end seat has an inclined plate arranged at an angle, the inner end of the inclined plate is aligned with the water spray base plate, and the outer end of the inclined plate is aligned with the horizontal plane of the construction site.

8. The construction method of the automatic mud-discharging prefabricated steel car washing system according to any one of claims 1 to 6, characterized in that: In the construction step 5), after the base is hoisted into the spray tank, a plurality of longitudinal rods are installed on both sides of the base. The plurality of longitudinal rods are arranged at intervals along the length direction of the base, and installation intervals are formed between adjacent longitudinal rods. A plurality of transverse bars are arranged in the installation interval, the transverse bars extending along the length direction of the base, the ends of the transverse bars are respectively connected to two longitudinal bars arranged at intervals, the plurality of transverse bars are respectively arranged in the middle and top of the installation interval, and the plurality of transverse bars and longitudinal bars enclose a plurality of rectangular installation areas; side panels are fixed in the installation areas, and the plurality of side panels respectively enclose the plurality of installation areas to form the side walls; The transverse rod has a transverse surface facing the car wash area, and an inwardly recessed mounting groove is formed on the transverse surface. The mounting groove has a groove opening. The side water pipes are arranged longitudinally, and the side water pipes pass through the mounting groove on the transverse rod from top to bottom. The outer side of the side water pipes is exposed on the outer side of the groove opening, and are connected to a bracket, by which the side water pipes are fixed.

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