A fine filtration device for water-based paint production

Abstract

This utility model relates to the field of filtration device technology and discloses a fine filtration device for water-based paint production, including a filter box. A feed pipe is centrally located at the top of the filter box, and a discharge valve pipe is located on one side of the filter box near the bottom. A baffle is centrally located inside the filter box, and several filter ports are formed through the baffle. A coarse filter screen is installed inside each filter port, and a locking block matching the filter port is located near the top of the outer ring of the coarse filter screen. Through the locking block, handle, coarse filter screen, and baffle, larger clumps can be directly stored inside the coarse filter screen, effectively reducing the probability of clogging and improving filtration efficiency. The water-based paint, after coarse filtration through the coarse filter screen, directly enters the fine filter screen bag for secondary fine filtration, further screening out small particulate impurities in the water-based paint and improving the filtration effect.

Description

Technical Field

[0001] This utility model relates to the field of filtration device technology, specifically a fine filtration device for water-based paint production. Background Technology

[0002] Water-based paint is a type of water-based coating. It is a coating that uses water as a diluent and does not contain organic solvents. It has a full, crystal-clear, and flexible film, and is water-resistant, wear-resistant, aging-resistant, yellowing-resistant, fast-drying, and easy-to-use. During the production of water-based paint, lumps may form. If lumps of water-based paint are added to the finished product container, it may affect the entire paint.

[0003] A search revealed a Chinese patent for a filtration device used in the production of water-based paint, publication number CN223112440U. The device includes a filter box, with a feed pipe fixedly connected to the top of the filter box and a discharge pipe fixedly connected to the bottom right side of the filter box. A valve is installed on the discharge pipe. A filtration mechanism is installed inside the filter box.

[0004] When the filter needs to be removed, the above-mentioned device is used to press the push block inward. The push block drives the first piston to move inward, and the air pressure drives the two second pistons to move outward. The movement of the second pistons drives the two push plates to move outward through the connecting rod. The two push plates push the two inserts out of the push groove and then pull the filter outward, thereby achieving the effect of convenient installation and disassembly of the filter. However, its structure is relatively simple, only using filter plates to intercept agglomerates. When there are many agglomerates, the filter plates are easily clogged, which affects normal filtration. Moreover, the filter plates can only filter large particles of impurities and are not suitable for fine filtration. A small number of small solid particles can still easily mix into the water-based paint. If these impurities are not removed, they can easily cause defects such as particles, pits, and pinholes on the paint film surface, affecting the aesthetics. Summary of the Invention

[0005] The purpose of this invention is to provide a fine filtration device for water-based paint production, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A fine filtration device for water-based paint production includes a filter box, a feed pipe is provided at the top center of the filter box, a discharge valve pipe is provided at the lower side of the filter box, and a baffle is installed at the center of the interior of the filter box. Several filter openings are provided inside the baffle. A coarse filter screen is installed inside each filter opening. A locking block matching the filter opening is provided on the upper part of the outer ring of the coarse filter screen. A handle is fixedly connected to the upper part of the inside of the coarse filter screen. A fine filter screen bag is provided at the bottom of the baffle and below each coarse filter screen. A fixing ring is fixedly installed at the top of the fine filter screen bag. A mounting bolt rod and fixing nut matching the fixing ring are provided on one side of the bottom of the baffle.

[0007] Preferably, the coarse filter cylinder is cylindrical, and the outer ring of the coarse filter cylinder has a plurality of filter holes, and the opening rate of the coarse filter cylinder is not less than 85%.

[0008] Preferably, the fine filter bag is flexible and is detachably connected to the baffle via a fixing nut and mounting bolt.

[0009] Preferably, a vibration motor is installed at the center of the bottom end of the baffle, a sealing box is provided around the outer ring of the vibration motor, and a heat dissipation pipe is provided at the rear end of the sealing box, with the heat dissipation pipe extending into the interior of the filter box.

[0010] Preferably, an observation window is provided at the upper front end of the filter box, and a sealing plate is detachably installed at the lower front end of the filter box via sealing bolts, with a sealing ring provided at the connection between the sealing plate and the filter box.

[0011] Preferably, a guide block is provided at the lower part of the interior of the filter box, which is compatible with the discharge valve pipe, and the two ends of the guide block away from the center of the filter box are raised.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This utility model uses a combination of a locking block, a handle, a coarse filter cylinder, and a baffle to filter water-based paint through multiple coarse filter cylinders. Larger clumps can be directly stored inside the coarse filter cylinders, which can then be lifted for cleaning. The non-standard flat shape of the multiple coarse filter cylinders effectively reduces the probability of clogging and improves filtration efficiency.

[0013] With the cooperation of the fixing nut, fixing ring, and fine filter bag, the water-based paint that has been coarsely filtered by the coarse filter cylinder will directly enter the fine filter bag for secondary fine filtration. This further filters out small particulate impurities in the water-based paint, improving the filtration effect and reducing the probability of defects such as particles and pinholes in the paint film during use. Attached Figure Description

[0014] Figure 1This is a schematic diagram of the overall structure of a water-based paint production fine filtration device according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the baffle and the vibration motor in the embodiment of this utility model; Figure 3 This is a schematic diagram of the structure of the fine filter bag and the coarse filter cylinder in the embodiments of this utility model.

[0015] In the diagram: 1. Filter box; 2. Feed pipe; 3. Discharge valve pipe; 4. Baffle; 5. Filter port; 6. Coarse filter screen cylinder; 7. Clamping block; 8. Handle; 9. Fixing ring; 10. Fixing nut; 11. Fine filter screen bag; 12. Vibration motor; 13. Sealing plate; 14. Observation window; 15. Guide block. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0017] Combination Figures 1-3 A fine filtration device for water-based paint production includes a filter box 1, a feed pipe 2 located at the top center of the filter box 1, a discharge valve pipe 3 located at the lower side of the filter box 1, and a baffle 4 installed at the center of the interior of the filter box 1.

[0018] See Figure 3 Furthermore, it is found that several filter ports 5 are opened inside the baffle 4, and a coarse filter screen cylinder 6 is set inside the filter port 5. A locking block 7 that is compatible with the filter port 5 is set at the upper position of the outer ring of the coarse filter screen cylinder 6. A handle 8 is fixedly connected at the upper position of the inner ring of the coarse filter screen cylinder 6. A fine filter screen bag 11 is set at the bottom of the baffle 4 and below each coarse filter screen cylinder 6. A fixing ring 9 is fixedly installed at the top of the fine filter screen bag 11. An installation bolt rod and a fixing nut 10 that are compatible with the fixing ring 9 are set at one side of the bottom of the baffle 4. The coarse filter screen cylinder 6 is cylindrical. Several filter holes are opened on the outer ring of the coarse filter screen cylinder 6, and the opening rate of the coarse filter screen cylinder 6 is not less than 85%.

[0019] Specifically, the water-based paint to be filtered can be added into the filter box 1 through the feed pipe 2, and the filtered water-based paint can be discharged through the discharge valve pipe 3. After the water-based paint enters the filter box 1, it will flow into multiple coarse filter cylinders 6 on the baffle 4 for coarse filtration. The coarse filter cylinders 6 can intercept large particles and clumps of impurities. The coarse filter cylinders 6 are cylindrical, and there are multiple coarse filter cylinders 6. The opening rate of the coarse filter cylinders 6 is not less than 85%. After a large amount of impurities accumulate at the bottom, the water-based paint will flow out from the side. The filter holes are not opened on the filter plate to reduce the impact of impurity accumulation on the filtration efficiency. In subsequent cleaning, the coarse filter cylinder 6 can be lifted directly by the handle 8. The internal impurities can then be cleaned. It is highly flexible in use, allowing for centralized processing and reducing the probability of impurities falling to the bottom of the filter box 1 during the cleaning process. Example 2

[0020] See Figure 2 and Figure 3 Furthermore, based on Embodiment 1, the fine filter bag 11 is made of soft material. The fine filter bag 11 is detachably connected to the baffle 4 via the fixing nut 10 and the mounting bolt rod. A vibration motor 12 is installed at the center of the bottom of the baffle 4. A sealing box is provided around the outer ring of the vibration motor 12, and a heat dissipation pipe is provided at the rear end of the sealing box. The heat dissipation pipe extends into the interior of the filter box 1. An observation window 14 is provided at the upper front end of the filter box 1. A sealing plate 13 is detachably installed at the lower front end of the filter box 1 via sealing bolts. A sealing rubber ring is provided at the connection between the sealing plate 13 and the filter box 1. A guide block 15, which is compatible with the discharge valve pipe 3, is provided at the lower interior of the filter box 1. The two ends of the guide block 15 away from the center of the filter box 1 are raised.

[0021] Specifically, because the fine filter bag 11 is installed below the coarse filter cylinder 6 through various components, the water-based paint that has been coarsely filtered by the coarse filter cylinder 6 will directly enter the fine filter bag 11. The fine filter bag 11 can perform fine filtration to remove small particulate solid impurities and prevent them from having a significant impact on the aesthetics of the paint film. The fine filter bag 11 is installed at the baffle 4 with the fixing nut 10 and fixing ring 9. When the sealing plate 13 is removed to clean the coarse filter cylinder 6, the fine filter bag 11 can also be removed to clean its interior. It is highly practical and flexible. At the same time, during the filtration process, the vibration motor 12 is started to continuously generate vibration, which is non-static filtration and effectively improves the filtration efficiency.

[0022] In actual operation, the water-based paint to be filtered can be added into the filter box 1 through the feed pipe 2, and the filtered water-based paint can be discharged through the discharge valve pipe 3. When the water-based paint enters the filter box 1, it will flow into multiple coarse filter cylinders 6 on the baffle 4 for coarse filtration. The coarse filter cylinders 6 can intercept large particles and clumps of impurities. The coarse filter cylinders 6 are cylindrical and there are multiple coarse filter cylinders 6. The opening rate of the coarse filter cylinders 6 is not less than 85%. After a lot of impurities accumulate at the bottom, the water-based paint will flow out from the side. The filter holes are not opened on the filter plate to reduce the impact of impurity accumulation on the filtration efficiency. In subsequent cleaning, the coarse filter cylinder 6 can be lifted by holding the handle 8. The internal impurities can be cleaned later. It is highly flexible in use, so as to centrally process and reduce the probability of impurities falling to the bottom of the filter box 1 during the cleaning process. Because the fine filter bag 11 is installed below the coarse filter cylinder 6 through various components, the water-based paint that has been coarsely filtered by the coarse filter cylinder 6 will directly enter the fine filter bag 11. Fine filtration can be performed through the fine filter bag 11 to remove small solid particles and impurities, preventing them from having a significant impact on the aesthetics of the paint film. The fine filter bag 11 is installed at the baffle 4 with the fixing nut 10 and fixing ring 9. When the sealing plate 13 is removed to clean the coarse filter cylinder 6, the fine filter bag 11 can also be removed to clean its interior. It is highly practical and flexible. At the same time, during the filtration process, the vibration motor 12 is started to continuously generate vibration, which is non-static filtration and effectively improves the filtration efficiency. Furthermore, the control components and modules used in the aforementioned vibration motor 12 are all existing technologies, which can be fully implemented by those skilled in the art. The power supply is also common knowledge in the field and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An aqueous paint production fine filter device, comprising a filter box (1), a feed pipe (2) is arranged at the central position of the top end of the filter box (1), and a discharge valve pipe (3) is arranged at the lower position of one side of the filter box (1), characterized in that: A baffle (4) is installed in the center of the interior of the filter box (1); A number of filter ports (5) are provided inside the baffle (4). A coarse filter cylinder (6) is provided inside the filter port (5). A locking block (7) that is compatible with the filter port (5) is provided on the upper part of the outer ring of the coarse filter cylinder (6). A handle (8) is fixedly connected to the upper part of the inside of the coarse filter cylinder (6). A fine filter bag (11) is provided at the bottom of the baffle (4) and below each coarse filter cylinder (6). A fixing ring (9) is fixedly installed at the top of the fine filter bag (11). An installation bolt rod and a fixing nut (10) that are compatible with the fixing ring (9) are provided on one side of the bottom of the baffle (4).

2. The water-based paint production fine filter equipment according to claim 1, characterized in that: The coarse filter cylinder (6) is cylindrical, and the outer ring of the coarse filter cylinder (6) is provided with a number of filter holes, and the opening rate of the coarse filter cylinder (6) is not less than 85%.

3. The water-based paint production fine filter equipment according to claim 1, characterized in that: The fine filter bag (11) is flexible and is detachably connected to the baffle (4) by a fixing nut (10) and a mounting bolt rod.

4. The water-based paint production fine filter equipment according to claim 1, characterized in that: A vibration motor (12) is installed at the center of the bottom of the baffle (4). A sealing box is provided on the outer ring of the vibration motor (12), and a heat dissipation pipe is provided at the rear end of the sealing box, with the heat dissipation pipe extending out of the filter box (1).

5. The water-based paint production fine filter equipment according to claim 1, characterized in that: An observation window (14) is provided at the upper front end of the filter box (1), and a sealing plate (13) is detachably installed at the lower front end of the filter box (1) by means of sealing bolts, and a sealing ring is provided at the connection between the sealing plate (13) and the filter box (1).

6. The water-based paint production fine filter equipment according to claim 1, characterized in that: The filter box (1) is provided with a guide block (15) that is compatible with the discharge valve pipe (3) at a lower position inside, and the two ends of the guide block (15) away from the center end of the filter box (1) are raised.

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