Coating cleaning water treatment system

Abstract

The utility model belongs to the technical field of glass cleaning, and discloses a coating cleaning water treatment system which comprises a water collecting tank, a filter tank and a clean water tank, the water collecting tank is connected with a water return pipe, and the water return pipe is used for conveying coating cleaning water to the water collecting tank; an ultrafiltration membrane is arranged in the filter tank, and the filter tank is communicated with the output end of the water collecting tank; the clean water tank is arranged on one side of the collecting water tank, the filtering tank is communicated with the clean water tank, and the clean water tank is connected with a water supply pipe used for conveying coating cleaning water to the outside. Thus, the collecting water tank can store the to-be-treated coating cleaning water, the ultrafiltration membrane in the filtering tank can filter impurities in the coating cleaning water, and when the ultrafiltration membrane bears too many impurities and the filtering effect is reduced, by replacing the ultrafiltration membrane, the filtering effect of the ultrafiltration membrane on the coating cleaning water can be kept, the treatment efficiency of the coating cleaning water is improved, and the service life of the coating cleaning water is prolonged. And the coating cleaning water can be conveniently recycled.

Description

Technical Field

[0001] The utility model relates to the technical field of glass cleaning, in particular to a water treatment system for coating cleaning water. Background Art

[0002] With the rapid development of the photovoltaic industry, the market demand for photovoltaic glass is increasing. During the process of manufacturing coated photovoltaic glass, it is necessary to clean the coated glass.

[0003] The cleaning water after cleaning contains some coating residue liquid. In order to enable the cleaning water to be recycled, it is necessary to treat the coating cleaning water. In the prior art, a mechanical filter is usually used for filtration, and the coating cleaning water flows through media such as sand to remove impurities in the coating cleaning water.

[0004] However, the mechanical filter often needs to be shut down for backwashing when treating the coating cleaning water. During the shutdown and backwashing of the mechanical filter, the coating cleaning water treatment work cannot be carried out normally, and the coating cleaning water treatment efficiency is low. Due to the high turbidity, hardness and conductivity indexes of the coating cleaning water input into the mechanical filter, the mechanical filter can only remove impurities in the coating cleaning water and is difficult to adjust the water quality of the cleaning water, resulting in problems of low coating cleaning water treatment efficiency and being not conducive to recycling after treatment. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a water treatment system for coating cleaning water to solve the problems of low coating cleaning water treatment efficiency and being not conducive to recycling after treatment.

[0006] To achieve the above object, the utility model adopts the following technical solutions:

[0007] A water treatment system for coating cleaning water includes: a collection pool, a return pipe is connected to the collection pool, and the return pipe is used to convey the coating cleaning water to the collection pool; a filtration pool, an ultrafiltration membrane is arranged in the filtration pool, and the filtration pool is communicated with the output end of the collection pool; a clean water pool, the clean water pool is arranged on one side of the collection pool, the filtration pool is communicated with the clean water pool, and a water supply pipe is connected to the clean water pool, and the water supply pipe is used to convey the coating cleaning water to the outside.

[0008] Preferably, the water treatment system for coating cleaning water further includes a pre-sedimentation tank, the pre-sedimentation tank is arranged downstream of the collection pool and upstream of the filtration pool, so that the coating cleaning water flows through the collection pool, the pre-sedimentation tank, the filtration pool and the clean water pool in sequence.

[0009] Preferably, the collecting pool, the pre-sedimentation pool and the filtering pool are arranged in sequence along a first direction, and the clear water pool is arranged on one side of the collecting pool in a second direction; the first direction is perpendicular to the second direction.

[0010] Preferably, the clean water tank is connected to a softening device for softening the coating cleaning water in the clean water tank.

[0011] Preferably, a softening zone is provided inside the clean water tank, the softening device is provided in the softening zone, and the input end of the water supply pipe is provided toward the softening zone.

[0012] Preferably, a plurality of the ultrafiltration membranes are provided, and the plurality of the ultrafiltration membranes are arranged in sequence along the first direction.

[0013] Preferably, the coating cleaning water treatment system further comprises a treatment device, which is arranged on a side of the filter tank away from the collection tank and is used to treat the ultrafiltration membrane.

[0014] Preferably, the treatment device comprises a backwash water tank; and / or, the treatment device comprises a chemical cleaning tank.

[0015] Preferably, the coating cleaning water treatment system further comprises a filter press device, and the filter press device is arranged on a side of the clean water tank away from the filter tank.

[0016] Preferably, the coating cleaning water treatment system further comprises a drainage ditch, which is arranged around the collection pool, the filter pool and the clean water pool.

[0017] Beneficial effects of the utility model:

[0018] A coating cleaning water treatment system comprises a collecting water tank, a filtering tank and a clear water tank, wherein the collecting water tank is connected to a return pipe, and the return pipe is used to transport the coating cleaning water to the collecting water tank; an ultrafiltration membrane is arranged in the filtering tank, and the filtering tank is connected to the output end of the collecting water tank; the clear water tank is arranged on one side of the collecting water tank, and the filtering tank is connected to the clear water tank, and the clear water tank is connected to a water supply pipe, and the water supply pipe is used to transport the coating cleaning water to the outside.

[0019] In this way, the coated film cleaning water to be processed can be discharged into the collection pool for temporary storage, reducing the water storage pressure in the cleaning workshop. The coated film cleaning water in the collection pool is transported to the filtration pool, and the coated film cleaning water flows through the ultrafiltration membrane. Impurities can be filtered under the action of the ultrafiltration membrane, facilitating the recycling of the coated film cleaning water. When the filtration effect of the ultrafiltration membrane deteriorates, the ultrafiltration membrane can be directly replaced. While ensuring the filtration effect of the ultrafiltration membrane in the filtration pool, the replaced ultrafiltration membrane can be maintained, reducing the downtime and improving the treatment efficiency of the coated film cleaning water. Description of the Drawings

[0020] Figure 1 is a top view of the coated film cleaning water treatment system in an embodiment of the present invention.

[0021] In the figure:

[0022] 1. Collection pool; 11. Return pipe; 2. Pre-sedimentation tank; 3. Filtration pool; 31. Ultrafiltration membrane; 4. Treatment device; 41. Backwashing pool; 42. Chemical cleaning pool; 5. Clear water pool; 51. Water supply pipe; 52. Softening area; 6. Pressure filtration device; 7. Drainage ditch; X. First direction; Y. Second direction. Detailed Embodiments

[0023] The present invention will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. Additionally, it should be noted that for the sake of description, only parts related to the present invention are shown in the drawings, rather than all structures.

[0024] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0026] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the drawings. They are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0027] Refer to Figure 1 , the present utility model provides a coating cleaning water treatment system, which includes a collection pool 1, a filtration pool 3 and a clean water pool 5. A return pipe 11 is connected to the collection pool 1, and the return pipe 11 is used to convey the coating cleaning water to the collection pool 1; an ultrafiltration membrane 31 is arranged in the filtration pool 3, and the filtration pool 3 is communicated with the output end of the collection pool 1; the clean water pool 5 is arranged on one side of the collection pool 1, the filtration pool 3 is communicated with the clean water pool 5, and a water supply pipe 51 is connected to the clean water pool 5, and the water supply pipe 51 is used to convey the coating cleaning water to the outside.

[0028] In this embodiment, the input end of the return pipe 11 is communicated with the coating cleaning water discharge end (not shown in the figure), and the output end is communicated with the collection pool 1. The input end of the water supply pipe 51 is communicated with the filtration pool 3, and the output end is communicated with the coating cleaning water recycling end (not shown in the figure). The ultrafiltration membrane 31 is detachably arranged in the filtration pool 3; both between the collection pool 1 and the filtration pool 3 and between the filtration pool 3 and the clean water pool 5 can be communicated through pipes (not shown in the figure), and valves and water pumps can be arranged on the pipes to control the flow of the coating cleaning water in the pipes.

[0029] It should be noted that the coating cleaning water generated after the cleaning workshop cleans the coated glass enters the coating cleaning water discharge end and enters the collection pool 1 through the return pipe 11 for temporary storage. The coating cleaning water is conveyed from the collection pool 1 to the filtration pool 3. After the impurities in the coating cleaning water are filtered by the ultrafiltration membrane 31, it is conveyed to the clean water pool 5 and then conveyed to the coating cleaning water recycling end through the water supply pipe 51, so that the filtered coating cleaning water can be recycled.

[0030] In this way, the collection pool 1 can temporarily store the coating cleaning water to be processed, reducing the storage pressure of the coating cleaning water in the cleaning workshop. After the coating cleaning water in the collection pool 1 is transported to the filtration pool 3, the ultrafiltration membrane 31 can filter out the impurities in the coating cleaning water, making the coating cleaning water discharged from the filtration pool 3 into the clean water pool 5 convenient for recycling. When the ultrafiltration membrane 31 bears too many impurities and the filtration effect decreases, the ultrafiltration membrane 31 can be directly replaced, reducing the downtime and improving the treatment efficiency of the coating cleaning water, making the treated coating cleaning water convenient for recycling.

[0031] It can be understood that the installation positions and quantities of the valves and water pumps on the pipeline can be flexibly adjusted according to actual needs.

[0032] Refer to Figure 1 , in some embodiments, the coating cleaning water treatment system further includes a pre-sedimentation tank 2, which is arranged downstream of the collection pool 1 and upstream of the filtration pool 3, so that the coating cleaning water flows through the collection pool 1, the pre-sedimentation tank 2, the filtration pool 3, and the clean water pool 5 in sequence. Among them, the pre-sedimentation tank 2 is arranged between the collection pool 1 and the filtration pool 3, and the pre-sedimentation tank 2 is communicated with the collection pool 1 and the filtration pool 3 through pipelines respectively. A negative pressure device (not shown in the figure) is arranged on the side of the ultrafiltration membrane 31 facing away from the collection pool 1.

[0033] In this way, the coating cleaning water in the collection pool 1 is transported to the pre-sedimentation tank 2, where it can be preliminarily sedimented. Larger suspended matters are sedimented in the pre-sedimentation tank 2. The negative pressure device transports the sedimented coating cleaning water in the pre-sedimentation tank 2 to the filtration pool 3 and flows through the ultrafiltration membrane 31 for filtration, reducing the filtration burden of the ultrafiltration membrane 31 and improving the treatment effect of the coating cleaning water.

[0034] It can be understood that the negative pressure device can be structures such as a water pump or a vacuum pump, as long as it can achieve the directional flow of the coating cleaning water, and no more examples are listed here.

[0035] Refer to Figure 1 , in some embodiments, the collection pool 1, the pre-sedimentation tank 2, and the filtration pool 3 are arranged in sequence along the first direction X, and the clean water pool 5 is arranged on one side of the collection pool 1 in the second direction Y; the first direction X and the second direction Y are perpendicular.

[0036] In this embodiment, the first direction X is the length direction of the clean water pool 5. When the negative pressure device is started, the coating cleaning water in the filtration pool 3 flows along the first direction X; the clean water pool 5 is arranged on the side of the collection pool 1 facing away from the return pipe 11.

[0037] Thus, the collection pool 1, the pre-sedimentation tank 2, and the filtration tank 3 are arranged in sequence along the first direction X, which facilitates the direct flow of the coating cleaning water in the collection pool 1 into the pre-sedimentation tank 2, and enables the negative pressure device to transport the sedimented coating cleaning water in the pre-sedimentation tank 2 to the filtration tank 3 for filtration, improving the treatment efficiency of the coating cleaning water; one side of the collection pool 1 in the second direction Y has a larger space, which is convenient for placing the clean water tank 5 and enabling the clean water tank 5 to hold more treated coating cleaning water for recycling.

[0038] It can be understood that the installation positions of the collection pool 1, the pre-sedimentation tank 2, the filtration tank 3, and the clean water tank 5 can be flexibly adjusted according to actual needs, and are not limited to the above settings. It is only necessary to enable the coating cleaning water to pass through the collection pool 1, the pre-sedimentation tank 2, the filtration tank 3, and the clean water tank 5 in sequence, which will not be elaborated here.

[0039] Refer to Figure 1 , in some embodiments, the clean water tank 5 is connected with a softening device (not shown in the figure), which is used for softening the coating cleaning water in the clean water tank. In this embodiment, the softening device is a living water softening device, and the living water softening device is installed inside the clean water tank 5 to remove calcium ions, magnesium ions, etc. in the coating cleaning water located in the clean water tank 5.

[0040] Thus, setting the softening device in the clean water tank 5 can reduce the hardness and conductivity of the coating cleaning water in the clean water tank 5, improve the treatment effect of the coating cleaning water, make the recycled coating cleaning water more environmentally friendly, and facilitate the repeated recycling of the treated coating cleaning water.

[0041] It can be understood that the softening device is not limited to the living water softening device. The softening treatment of the coating cleaning water belongs to the prior art, and the specific structure of the softening device can be flexibly adjusted as long as it can soften the coating cleaning water in the clean water tank 5, and will not be listed in detail here.

[0042] Furthermore, a filter element (not shown in the figure) can also be installed in the water supply pipe 51 to filter the coating cleaning water transported to the recycling end of the coating cleaning water, improving the treatment effect of the coating cleaning water.

[0043] Refer to Figure 1 , in some embodiments, a softening area 52 is arranged inside the clean water tank 5, the softening device is arranged in the softening area 52, and the input end of the water supply pipe 51 faces the softening area 52. Among them, the softening area 52 is arranged at the bottom of the clean water tank 5, and the softening device located in the softening area 52 can soften the filtered coating cleaning water in the clean water tank 5.

[0044] In this way, the coating cleaning water near the softening area 52 can be transported to the coating cleaning water circulation end through the water supply pipe 51, enabling the coating cleaning water in the clear water tank 5 to flow towards the softening device under the drive of water flow, improving the softening efficiency, making the quality of the coating cleaning water transported to the water supply pipe 51 better, and facilitating recycling.

[0045] It can be understood that the installation position of the input end of the water supply pipe 51 can be flexibly adjusted according to actual needs, and no more examples will be listed here.

[0046] Refer to Figure 1 , in some embodiments, multiple ultrafiltration membranes 31 are provided, and the multiple ultrafiltration membranes 31 are arranged in sequence along the first direction X. In this embodiment, 5 ultrafiltration membranes 31 are provided.

[0047] In this way, providing multiple ultrafiltration membranes 31 can improve the filtration effect on the coating cleaning water. Moreover, when one or several of the ultrafiltration membranes 31 need to be replaced or maintained, they can be removed from the filtration tank 3 and replaced with normally filtering ultrafiltration membranes 31 to ensure the normal progress of the filtration work. Compared with a mechanical filter that requires shutdown for backwashing, multiple ultrafiltration membranes 31 can enable the treatment of the coating cleaning water to proceed continuously, improving the treatment efficiency of the coating cleaning water.

[0048] It can be understood that the number of ultrafiltration membranes 31 can be flexibly adjusted. Exemplarily, the number of ultrafiltration membranes 31 can also be 3, 4, 6, 7, not limited to 5, as long as it can achieve sufficient filtration of the coating cleaning water and enable the negative pressure device to overcome the resistance of the ultrafiltration membranes 31 to drive the coating cleaning water to flow.

[0049] Refer to Figure 1 , in some embodiments, the coating cleaning water treatment system further includes a treatment device 4, and the treatment device 4 is arranged on the side of the filtration tank 3 away from the collection tank 1 for treating the ultrafiltration membranes 31.

[0050] In this way, the treatment device 4 can treat the ultrafiltration membranes 31 removed from the filtration tank 3, reduce the impurities on the ultrafiltration membranes 31, enable them to be reinstalled into the filtration tank 3 to participate in the filtration work, and at the same time install normally filtering ultrafiltration membranes 31 in the filtration tank 3, which can ensure continuous filtration of the coating cleaning water without shutdown, improve the treatment efficiency of the coating cleaning water, and facilitate the recycling of the treated coating cleaning water.

[0051] Refer to Figure 1 , in some embodiments, the treatment device 4 includes a backwashing water tank 41 and a chemical cleaning tank 42. Among them, the filtration tank 3, the backwashing water tank 41, and the chemical cleaning tank 42 are arranged in sequence along the first direction X.

[0052] Thus, the ultrafiltration membrane 31 that needs to be replaced and maintained is placed in the backwashing water tank 41, and the water in the backwashing water tank 41 is used to backwash the ultrafiltration membrane 31, which can remove the impurities on the surface of the ultrafiltration membrane 31 and improve the filtration effect of the ultrafiltration membrane 31; when the ultrafiltration membrane 31 is placed in the chemical cleaning tank 42, the impurities on the surface of the ultrafiltration membrane 31 can be further removed by chemical agents. At the same time, since the filtration tank 3, the backwashing water tank 41, and the chemical cleaning tank 42 are arranged along the first direction X, it is convenient for the staff to replace and maintain the ultrafiltration membrane 31 in the filtration tank 3 in a timely manner, improve the maintenance efficiency of the ultrafiltration membrane 31, and then improve the treatment efficiency of the coated film cleaning water, which is convenient for improving the water quality of the coated film cleaning water that is treated and recycled.

[0053] Refer to Figure 1 , in some embodiments, the coated film cleaning water treatment system further includes a pressure filtration device 6, and the pressure filtration device 6 is arranged on the side of the clear water tank 5 away from the filtration tank 3. In this embodiment, the pressure filtration device 6 is a filter press.

[0054] Thus, the suspended solids and other impurities generated in the pre-sedimentation tank 2, the backwashing water tank 41, and the chemical cleaning tank 42 can be transported into the filter press for compression, so that the water in the impurities is squeezed out, which is convenient for the water to re-enter the treatment process of the coated film cleaning water, improve the recycling rate of the coated film cleaning water, and at the same time, the solid filter cake formed after the impurities are compressed is convenient for collection and subsequent treatment.

[0055] It can be understood that the specific structure and installation position of the pressure filtration device 6 can be flexibly adjusted and will not be listed in detail here.

[0056] Refer to Figure 1 , in some embodiments, the coated film cleaning water treatment system further includes a drainage ditch 7, and the drainage ditch 7 surrounds the collection tank 1, the filtration tank 3, and the clear water tank 5.

[0057] Among them, the drainage ditch 7 surrounds the filter press, the collection tank 1, the pre-sedimentation tank 2, the filtration tank 3, the backwashing water tank 41, the chemical cleaning tank 42, and the clear water tank 5, so that the wastewater generated during the treatment process of the coated film cleaning water can be discharged to the outside through the drainage ditch 7, thereby keeping the ground clean.

[0058] Obviously, the above-mentioned embodiments of the present invention are only examples for clearly explaining the present invention, and are not intended to limit the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments, and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the implementation manners here. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A coating cleaning water treatment system, characterized in that: include: A collecting water pool (1), wherein the collecting water pool (1) is connected to a water return pipe (11), and the water return pipe (11) is used to transport coating cleaning water to the collecting water pool (1); A filter pool (3), wherein an ultrafiltration membrane (31) is arranged in the filter pool (3), and the filter pool (3) is connected to the output end of the collection pool (1); A clean water tank (5), wherein the clean water tank (5) is arranged on one side of the collecting water tank (1), the filtering tank (3) is connected to the clean water tank (5), and the clean water tank (5) is connected to a water supply pipe (51), and the water supply pipe (51) is used to transport the coating cleaning water to the outside.

2. The coating cleaning water treatment system according to claim 1, characterized in that: The coating cleaning water treatment system also includes a pre-sedimentation tank (2), which is arranged downstream of the collecting tank (1) and upstream of the filtering tank (3), so that the coating cleaning water flows through the collecting tank (1), the pre-sedimentation tank (2), the filtering tank (3), and the clean water tank (5) in sequence.

3. The coating cleaning water treatment system according to claim 2, characterized in that: The collection pool (1), the pre-sedimentation pool (2), and the filtration pool (3) are arranged in sequence along a first direction (X), and the clean water pool (5) is arranged on one side of the collection pool (1) in a second direction (Y); The first direction (X) and the second direction (Y) are perpendicular.

4. The coating cleaning water treatment system according to claim 1, characterized in that: The clean water tank (5) is connected to a softening device for softening the coating cleaning water in the clean water tank (5).

5. The coating cleaning water treatment system according to claim 4, characterized in that: A softening zone (52) is arranged inside the clean water tank (5), the softening device is arranged in the softening zone (52), and the input end of the water supply pipe (51) is arranged toward the softening zone (52).

6. The coating cleaning water treatment system according to claim 1, characterized in that: A plurality of the ultrafiltration membranes (31) are provided, and the plurality of the ultrafiltration membranes (31) are arranged in sequence along a first direction (X).

7. The coating cleaning water treatment system according to claim 6, characterized in that: The coating cleaning water treatment system further comprises a treatment device (4), wherein the treatment device (4) is arranged on a side of the filter pool (3) away from the collection pool (1) and is used for treating the ultrafiltration membrane (31).

8. The coating cleaning water treatment system according to claim 7, characterized in that: The treatment device (4) comprises a backwash water tank (41); and / or, the treatment device (4) comprises a chemical cleaning tank (42).

9. The coating cleaning water treatment system according to any one of claims 1 to 8, characterized in that: The coating cleaning water treatment system further comprises a filter press device (6), and the filter press device (6) is arranged on a side of the clean water tank (5) away from the filter tank (3).

10. The coating cleaning water treatment system according to any one of claims 1 to 8, characterized in that: The coating cleaning water treatment system further comprises a drainage ditch (7), and the drainage ditch (7) is arranged around the collection pool (1), the filter pool (3) and the clean water pool (5).

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