Water circulation filtering device for construction site car washing pool

Abstract

The utility model relates to a water circulation filtering device for a vehicle washing tank in a construction site, which belongs to the technical field of waste water filtering equipment in construction engineering construction, and comprises a vehicle washing tank, a sedimentation tank, a self-cleaning filtering device, a clean water tank and a high-pressure vehicle washing device, the vehicle washing tank comprises a vehicle washing platform and a drainage ditch, the sedimentation tank is communicated with the vehicle washing tank through the drainage ditch, and the self-cleaning filtering device is communicated with the clean water tank through the drainage ditch. A protective barrier is fixedly installed on the vehicle washing platform, a drainage ditch cover plate is fixedly installed on the drainage ditch, and the self-cleaning filtering device comprises a sewage pump, a water inlet pipe, a flow guide groove, an overflow pipe, a sand filtering mechanism, a clear water outlet pipe and a back washing water inlet pipe. According to the water circulation filtering device for the construction site car washing pool, sewage in the sedimentation pool is injected into the self-cleaning filtering device through the sewage pump to be filtered, filtered clear water is stored in the clear water pool to be used for washing cars, car washing wastewater is collected in the sedimentation pool through the drainage ditch, cyclic utilization of water resources is achieved, and the cyclic utilization rate of the wastewater is increased; and water resource waste is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of construction project construction wastewater filtration equipment, in particular to a water circulation filtration device for a construction site car wash pond. Background Technique

[0002] Construction projects refer to building construction, municipal infrastructure projects, their ancillary facilities, and the installation projects of pipelines and equipment supporting them. Vehicle washing platforms and washing facilities should be set at the entrances and exits of construction sites to ensure the cleanliness and hygiene of construction vehicles, protect the environment. The filtration device for the water used to wash vehicles is directly related to the recycling of car wash water and is crucial for the conservation and protection of water resources.

[0003] Existing car wash wastewater is mostly discharged into the sewage pipe after being precipitated in a three-stage sedimentation tank. The sedimentation effect of the sedimentation tank is average, and it is difficult to achieve the recycling of wastewater, resulting in a waste of water resources. Therefore, a water circulation filtration device for a construction site car wash pond is proposed to solve the above problems. Content of the Utility Model

[0004] In view of the deficiencies of the prior art, the utility model provides a water circulation filtration device for a construction site car wash pond, which has the advantages of improving the recycling rate of wastewater and avoiding waste of water resources, and solves the problems that existing car wash wastewater is mostly discharged into the sewage pipe after being precipitated in a three-stage sedimentation tank, the sedimentation effect of the sedimentation tank is average, and it is difficult to achieve the recycling of wastewater, resulting in a waste of water resources.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A water circulation filtration device for a construction site car wash pond, including a car wash trough, a sedimentation tank, a self-cleaning filtration device, a clean water tank, and a high-pressure car washer. The car wash trough includes a vehicle washing platform and a drainage ditch. The sedimentation tank is communicated with the car wash trough through the drainage ditch. A guardrail is fixedly installed on the vehicle washing platform, and a drainage ditch cover plate is fixedly installed on the drainage ditch.

[0006] The self-cleaning filtration device includes a sewage pump, a water inlet pipe, a diversion trough, an overflow pipe, a sand filtration mechanism, a clean water outlet pipe, a backwashing water inlet pipe, a backwashing air inlet pipe, a clean water pump, and an air compressor. The sewage pump is fixedly installed inside the sedimentation tank, the clean water pump is fixedly installed inside the clean water tank. Protective nets are placed on both the sedimentation tank and the clean water tank. The water inlet pipe is fixedly installed at the water outlet end of the sewage pump. The diversion trough is opened inside the self-cleaning filtration device. The water inlet pipe extends into the diversion trough. One end of the overflow pipe is fixedly connected to the left inner wall of the self-cleaning filtration device, and the other end passes through the self-cleaning filtration device and extends into the sedimentation tank. An inlet pipe valve is fixedly installed on the outer peripheral wall of the backwashing air inlet pipe.

[0007] Further, one end of the clear water outlet pipe is fixedly connected to the right inner wall of the self-cleaning filtration device, and the other end thereof penetrates through the self-cleaning filtration device and extends into the interior of the clear water tank. One end of the backwashing inlet pipe is fixedly installed on the water outlet end of the clear water pump, and the other end thereof penetrates through the self-cleaning filtration device and extends into its interior.

[0008] Further, one end of the clear water outlet pipe is fixedly connected to the right inner wall of the self-cleaning filtration device, and the other end thereof penetrates through the self-cleaning filtration device and extends into the interior of the clear water tank. A clear water outlet pipe valve is fixedly installed on the outer peripheral wall of the clear water outlet pipe.

[0009] Further, the air compressor is located on the right side of the self-cleaning filtration device, and the backwashing inlet air pipe is fixedly installed on the air compressor.

[0010] Further, the sand filtration mechanism includes a partition plate fixedly installed inside the sand filtration mechanism. A first screen is fixedly connected to the top surface of the partition plate. A supporting filter layer is arranged on the top surface of the first screen. A second screen is fixedly connected to the top surface of the supporting filter layer. A fine sand filter layer is arranged on the top surface of the second screen.

[0011] Further, the sand filtration mechanism is made of quartz sand material, and the aperture of the first screen is smaller than the particle size of the largest particles at the bottom of the supporting filter layer.

[0012] Further, the aperture of the second screen is ten meshes. The thickness of the supporting filter layer is 0.5 m, and the particle size is 8 to 16 mm. The thickness of the fine sand filter layer is 0.5 to 0.8 m, and the particle size is 0.6 to 1.2 mm.

[0013] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0014] For the water circulation filtration device of the construction site car wash pond, by using a sewage pump to inject the sewage in the sedimentation tank into the self-cleaning filtration device for filtration, the filtered clear water is stored in the clear water tank for vehicle washing, and the car wash wastewater is collected in the sedimentation tank through the drainage ditch, achieving the recycling of water resources, improving the recycling rate of wastewater, and avoiding waste of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a front schematic diagram of the structure of the present utility model;

[0017] Figure 3 is an internal structural schematic diagram of the self-cleaning filtration device in the structure of the present utility model;

[0018] Figure 4This is a schematic flow chart of the structure of the present utility model.

[0019] In the figure: 1, car wash tank; 2, sedimentation tank; 3, self-cleaning filtration device; 4, clean water tank; 5, high-pressure car washer; 11, protective railing; 21, drain gutter cover plate; 22, protective net; 31, sewage pump; 32, water inlet pipe; 33, diversion trough; 34, overflow pipe; 35, sand filtration mechanism; 36, clean water outlet pipe; 37, backwash water inlet pipe; 38, backwash air inlet pipe; 39, clean water pump; 351, partition board; 352, screen one; 353, supporting filtration layer; 354, screen two; 355, fine sand filtration layer; 361, clean water outlet pipe valve; 381, air compressor; 382, air inlet pipe valve. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Embodiment 1: Please refer to Figures 1 to 4 , a water circulation filtration device for a construction site car wash pond in this embodiment, includes a car wash tank 1, a sedimentation tank 2, a self-cleaning filtration device 3, a clean water tank 4 and a high-pressure car washer 5. The car wash tank 1 includes a vehicle washing platform and a drain gutter. The sedimentation tank 2 is connected to the car wash tank 1 through the drain gutter. A protective railing 11 is fixedly installed on the vehicle washing platform, and a drain gutter cover plate 21 is fixedly installed on the drain gutter.

[0022] The self-cleaning filtration device 3 includes a sewage pump 31, a water inlet pipe 32, a diversion trough 33, an overflow pipe 34, a sand filtration mechanism 35, a clean water outlet pipe 36, a backwash water inlet pipe 37, a backwash air inlet pipe 38, a clean water pump 39 and an air compressor 381. The sewage pump 31 is fixedly installed inside the sedimentation tank 2, and the clean water pump 39 is fixedly installed inside the clean water tank 4. Protective nets 22 are placed on both the sedimentation tank 2 and the clean water tank 4. The water inlet pipe 32 is fixedly installed at the water outlet end of the sewage pump 31. The diversion trough 33 is opened inside the self-cleaning filtration device 3, and the water inlet pipe 32 extends into the diversion trough 33. One end of the overflow pipe 34 is fixedly connected to the left inner wall of the self-cleaning filtration device 3, and the other end thereof penetrates through the self-cleaning filtration device 3 and extends into the sedimentation tank 2. An air inlet pipe valve 382 is fixedly installed on the outer peripheral wall of the backwash air inlet pipe 38.

[0023] One end of the clean water outlet pipe 36 is fixedly connected to the right inner wall of the self-cleaning filter device 3, and the other end thereof penetrates through the self-cleaning filter device 3 and extends into the interior of the clean water tank 4. One end of the backwash inlet pipe 37 is fixedly installed on the water outlet end of the clean water pump 39, and the other end thereof penetrates through the self-cleaning filter device 3 and extends into its interior. One end of the clean water outlet pipe 36 is fixedly connected to the right inner wall of the self-cleaning filter device 3, and the other end thereof penetrates through the self-cleaning filter device 3 and extends into the interior of the clean water tank 4. A clean water outlet pipe valve 361 is fixedly installed on the outer peripheral wall of the clean water outlet pipe 36. The air compressor 381 is located on the right side of the self-cleaning filter device 3, and the backwash inlet air pipe 38 is fixedly installed on the air compressor 381.

[0024] It should be noted that the high-pressure car washer 5, the sewage pump 31, the clean water pump 39, the clean water outlet pipe valve 361, the air compressor 381, and the inlet air pipe valve 382 are all conventional devices well-known to the public in the prior art, and their specific structures and working principles will not be elaborated herein.

[0025] Specifically, the vehicle is located on the car wash trough 1, and then the vehicle is washed by the high-pressure car washer 5. The car wash sewage first converges to the sedimentation tank 2 through the drainage ditch for sedimentation to obtain the water after preliminary sedimentation treatment. When the self-cleaning filter device 3 filters water, the raw water is pumped from the sedimentation tank 2 to the diversion trough 33 by the sewage pump 31 through the water inlet pipe 32, and after being filtered by the sand filtration mechanism 35, it flows into the clean water tank through the bottom clean water outlet pipe 36. When the self-cleaning filter device 3 performs backwashing, the washing water is pumped from the clean water tank 4 to the backwash inlet pipe 37 by the clean water pump 39, and compressed air is introduced into the backwash inlet air pipe 38 by the air compressor 381. During cleaning, the clean water outlet pipe valve 361 is closed, and the upward water flow and air carry out the silt in the sand filter layer and flow back to the sedimentation tank 2 through the upper overflow pipe 34 for sedimentation. The silt in the sedimentation tank 2 is cleaned regularly.

[0026] Embodiment 2: Please refer to Figures 1 to 4 , in this embodiment, on the basis of Embodiment 1, the sand filtration mechanism 35 includes a partition plate 351, the partition plate 351 is fixedly installed inside the sand filtration mechanism 35, a first screen 352 is fixedly connected to the top surface of the partition plate 351, a supporting filter layer 353 is arranged on the top surface of the first screen 352, a second screen 354 is fixedly connected to the top surface of the supporting filter layer 353, and a fine sand filter layer 355 is arranged on the top surface of the second screen 354.

[0027] Among them, the sand filtration mechanism 35 is made of quartz sand. The aperture of the first screen 352 is smaller than the particle size of the largest particles at the bottom of the supporting filter layer 353. The aperture of the second screen 354 is ten meshes. The thickness of the supporting filter layer 353 is 0.5 m, and the particle size is 8 to 16 mm. The thickness of the fine sand filter layer 355 is 0.5 to 0.8 m, and the particle size is 0.6 to 1.2 mm.

[0028] Specifically, under the action of the first screen 352, the second screen 354, the supporting filter layer 353 and the fine sand filter layer 355, the sewage is filtered.

[0029] The working principle of the above embodiment is as follows:

[0030] The vehicle is located on the car wash trough 1, and then the vehicle is washed by the high-pressure car washer 5. The car wash sewage is first collected in the sedimentation tank 2 through the drainage ditch for sedimentation to obtain the water after preliminary sedimentation treatment. When the self-cleaning filtration device 3 filters the water, the raw water is pumped from the sedimentation tank 2 to the diversion trough 33 by the sewage pump 31 through the water inlet pipe 32, and after being filtered by the sand filtration mechanism 35, it flows into the clear water tank through the bottom clear water outlet pipe 36. When the self-cleaning filtration device 3 performs backwashing, the washing water is pumped from the clear water tank 4 to the backwashing inlet pipe 37 by the clear water pump 39, and compressed air is introduced into the backwashing inlet pipe 38 by the air compressor 381. During cleaning, the clear water outlet pipe valve 361 is closed, and the upward water flow and air carry out the sludge in the sand filter layer and flow back to the sedimentation tank 2 through the upper overflow pipe 34 for sedimentation. The sludge in the sedimentation tank 2 is cleaned regularly.

[0031] The control mode of the present utility model is controlled by a controller. The control circuit of the controller can be realized by simple programming by those skilled in the art. The provision of power also belongs to the common knowledge in the art, and the present utility model is mainly used to protect mechanical devices, so the control mode and circuit connection of the present utility model will not be explained in detail.

[0032] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the presence of additional identical elements in the process, method, article or device including the said element.

[0033] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A water circulation filtration device for a car wash pool at a construction site, characterized in that: The vehicle washing tank (1) comprises a vehicle washing platform and a drainage ditch, the sedimentation tank (2) is connected to the vehicle washing tank (1) through the drainage ditch, a guardrail (11) is fixedly installed on the vehicle washing platform, and a drainage ditch cover plate (21) is fixedly installed on the drainage ditch; The self-cleaning filtering device (3) comprises a sewage pump (31), a water inlet pipe (32), a guide groove (33), an overflow pipe (34), a sand filtering mechanism (35), a clean water outlet pipe (36), a backwashing water inlet pipe (37), a backwashing air inlet pipe (38), a clean water pump (39) and an air compressor (381), wherein the sewage pump (31) is fixedly installed inside the sedimentation tank (2), the clean water pump (39) is fixedly installed inside the clean water tank (4), and protective nets are placed on both the sedimentation tank (2) and the clean water tank (4). (22), the water inlet pipe (32) is fixedly mounted on the water outlet end of the sewage pump (31), the guide groove (33) is opened inside the self-cleaning filter device (3), the water inlet pipe (32) extends to the inside of the guide groove (33), one end of the overflow pipe (34) is fixedly connected to the left inner wall of the self-cleaning filter device (3), and the other end thereof passes through the self-cleaning filter device (3) and extends to the inside of the sedimentation tank (2), and an air inlet pipe valve (382) is fixedly mounted on the outer peripheral wall of the backwash air inlet pipe (38).

2. A water circulation filtration device for a construction site car wash pool according to claim 1, characterized in that: One end of the clean water outlet pipe (36) is fixedly connected to the right inner wall of the self-cleaning filter device (3), and the other end thereof passes through the self-cleaning filter device (3) and extends to the interior of the clean water tank (4); one end of the backwash water inlet pipe (37) is fixedly mounted on the water outlet end of the clean water pump (39), and the other end thereof passes through the self-cleaning filter device (3) and extends to the interior thereof.

3. A water circulation filtration device for a construction site car wash pool according to claim 2, characterized in that: One end of the clean water outlet pipe (36) is fixedly connected to the right inner wall of the self-cleaning filter device (3), and the other end thereof passes through the self-cleaning filter device (3) and extends to the interior of the clean water tank (4). A clean water outlet pipe valve (361) is fixedly mounted on the outer peripheral wall of the clean water outlet pipe (36).

4. A water circulation filtration device for a construction site car wash pool according to claim 3, characterized in that: The air compressor (381) is located on the right side of the self-cleaning filter device (3), and the backwash air inlet pipe (38) is fixedly mounted on the air compressor (381).

5. The water circulation and filtering device for a construction site car wash pool according to claim 1, characterized in that: The sand filtering mechanism (35) comprises a partition (351), the partition (351) being fixedly mounted inside the sand filtering mechanism (35), the top surface of the partition (351) being fixedly connected to a first screen (352), the top surface of the first screen (352) being provided with a supporting filtering layer (353), the top surface of the supporting filtering layer (353) being fixedly connected to a second screen (354), and the top surface of the second screen (354) being provided with a fine sand filtering layer (355).

6. A water circulation and filtering device for a car wash pool at a construction site according to claim 5, characterized in that: The sand filtering mechanism (35) is made of quartz sand, and the aperture of the first screen (352) is smaller than the particle size of the largest particle at the bottom of the supporting filtering layer (353).

7. A water circulation and filtering device for a construction site car wash pool according to claim 6, characterized in that: The aperture of the second screen (354) is ten meshes, the thickness of the supporting filter layer (353) is 0.5m, the particle size is 8 to 16mm, the thickness of the fine sand filter layer (355) is 0.5 to 0.8m, and the particle size is 0.6 to 1.2mm.

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