Mixed liquid filtering device for coating production

By designing a filtration device for mixed liquids used in paint production, and employing a cylindrical filter element and an anti-clogging mechanism, the problem of inconvenient filter element replacement and cleaning was solved, achieving automatic sewage discharge and high-efficiency filtration.

CN224086162UActive Publication Date: 2026-04-07JIANGSU ZHAOHUI CHEM
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-09
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing paint filtration devices require filter element replacement and internal cleaning after a period of use, which is inconvenient and reduces filtration efficiency.

Method used

Design a filtration device for a mixed liquid in paint production. It adopts a cylindrical filter element with openings at both ends and an anti-clogging mechanism. A geared motor drives a brush assembly to scrape the inner wall of the filter element, and impurities are deposited to the drain port by gravity. Automatic sewage discharge is achieved through a diaphragm pump and a drain pipe.

Benefits of technology

It enables automatic drainage of the filter element during long-term use, avoiding manual disassembly and cleaning, maintaining the filtration effect of the filter element, and simplifying the operation process.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224086162U_ABST
    Figure CN224086162U_ABST
Patent Text Reader

Abstract

The utility model relates to a mixed liquid filtering device for coating production, and belongs to the technical field of coating filtration, the mixed liquid filtering device comprises a moving trolley and a filtering tank mounted on the moving trolley, a filter element is mounted in the filtering tank, the filtering tank comprises a tank body and a top cover detachably mounted on the tank body, a feeding hole and a discharging hole are formed in the side part of the tank body, and the top cover is detachably mounted on the top cover. A drain outlet is formed in the bottom of the tank body, and a valve is mounted in the drain outlet. According to the invention, the filter element is arranged to be cylindrical with two open ends, impurities attached to the surface of the filter element gradually sink to the bottom of the filter element, namely the drain outlet under the action of gravity in a long-time filtering process, and after a period of time, the impurities can be discharged from the drain outlet along with the coating under the action of pressure of the coating only by opening the valve in the drain outlet, so that the coating is prevented from being damaged. The filter element does not need to be detached to remove impurities, and use is convenient.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This application relates to the technical field of coating filtration, and in particular to a mixture filtration device for coating production. Background Technology

[0002] Paint filtration is an indispensable part of the paint production process, and its core technology is to use filters to screen and purify paint.

[0003] The filter devices used in the prior art require the filter element to be replaced after a period of use. In order to improve the service life of the filter element, some filter devices are equipped with anti-clogging mechanisms. However, the impurities are still stored inside the filter element, and the filter canister still needs to be disassembled to remove the impurities, which is inconvenient to use.

[0004] Therefore, there is an urgent need to improve existing filtration devices in order to enhance filtration efficiency and simplify usage. Utility Model Content

[0005] The purpose of this application is to provide a mixture filtration device for paint production to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this application provides a mixed liquor filtration device for paint production, which adopts the following technical solution:

[0007] A filtration device for a mixture used in paint production includes a mobile trolley and a filter tank mounted on the trolley. A filter element is installed inside the filter tank. The filter tank includes a tank body and a detachable top cover mounted on the tank body. An inlet and an outlet are provided on the side of the tank body, and a drain outlet is provided at the bottom of the tank body. A valve is installed inside the drain outlet. The filter element is a cylindrical shape with openings at both ends. An annular protrusion is provided inside the filter tank, and the filter element is fixedly sealed on the annular protrusion. The bottom end of the filter element is sealed against the bottom wall of the filter tank. A clean discharge zone is formed between the annular protrusion, the filter element, and the filter tank. The outlet is connected to the clean discharge zone. The middle part of the filter element is directly connected to the drain outlet. The top of the tank body corresponding to the annular protrusion is a feed zone, and the feed inlet is connected to the feed zone.

[0008] Preferably, the filter canister is further provided with an anti-clogging mechanism, which includes a geared motor, a rotating shaft and a brush assembly. The brush assembly is matched and disposed inside the filter element. The rotating shaft passes through the top cover and is fixed to the brush assembly. The geared motor is fixed on the top cover and is used to drive the rotating shaft to rotate.

[0009] By adopting the above technical solution and setting an anti-clogging mechanism, the brush assembly driven by the geared motor scrapes along the inner wall of the filter element, which can remove the impurities clogging the filter element, so as to ensure that the filter element always has a good filtration effect.

[0010] The brush assembly includes a central rod and a vertical rod. The central rod is connected to the rotating shaft. Several bristles are evenly installed on the side of the vertical rod. Multiple connecting rods are evenly fixed between the vertical rod and the central rod. To reduce paint resistance, the cross-section of the connecting rod is rhomboid.

[0011] Preferably, in order to ensure the smooth operation of the brush assembly, the filter tank has a cross-shaped structure corresponding to the position of the drain outlet, and a positioning hole is provided in the center of the cross-shaped structure, and the central rod is rotatably connected in the positioning hole.

[0012] The mobile trolley is also equipped with a diaphragm pump that is connected to the feed inlet.

[0013] The sewage outlet is connected to a sewage pipe.

[0014] In summary, this application includes at least one of the following beneficial technical effects:

[0015] 1. This paint production mixture filtration device sets the filter element as a cylindrical shape with open ends. During the long-term filtration process, the impurities attached to the surface of the filter element gradually sink to the bottom of the filter element, i.e. the drain port, under the action of gravity. After a period of time, simply open the valve in the drain port, and the impurities can be discharged from the drain port along with the paint under the pressure of the paint. There is no need to disassemble the filter element to remove the impurities, making it more convenient to use.

[0016] 2. By incorporating an anti-clogging mechanism, the brush assembly driven by a geared motor scrapes along the inner wall of the filter element, which can remove impurities clogging the filter element, thus ensuring that the filter element always has a good filtration effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0018] Figure 2 This is a schematic diagram illustrating the internal cross-sectional structure of the tank in the embodiments of this application.

[0019] Explanation of reference numerals in the attached drawings: 1. Moving trolley; 2. Tank body; 21. Top cover; 22. Feed inlet; 23. Discharge outlet; 24. Sewage outlet; 25. Clean discharge area; 26. Feeding area; 3. Valve; 4. Filter element; 5. Gear motor; 6. Rotating shaft; 7. Brush assembly; 71. Connecting rod; 8. Diaphragm pump. Detailed Implementation

[0020] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0021] This application discloses a mixture filtration device for coating production, referring to... Figure 1-2 The system includes a mobile trolley 1 and a filter tank mounted on the mobile trolley 1. The filter tank contains a filter element 4. The filter tank includes a tank body 2 and a top cover 21 that is detachably mounted on the tank body 2. The side of the tank body 2 is provided with an inlet 22 and an outlet 23. The bottom of the tank body 2 is provided with a drain outlet 24. A valve 3 is installed in the drain outlet 24. The filter element 4 is a cylindrical shape with open ends. The filter tank contains an annular protrusion. The filter element 4 is fixedly sealed on the annular protrusion. The bottom end of the filter element 4 is sealed against the bottom wall of the filter tank. A clean discharge area 25 is formed between the annular protrusion, the filter element 4, and the filter tank. The outlet 23 is connected to the clean discharge area 25. The middle part of the filter element 4 is directly connected to the drain outlet 24. The top of the annular protrusion in the tank body 2 is the inlet area 26. The inlet 22 is connected to the inlet area 26.

[0022] Reference Figure 2 The filter tank is also equipped with an anti-clogging mechanism, which includes a geared motor 5, a rotating shaft 6 and a brush assembly 7. The brush assembly 7 is matched and installed in the filter element 4. The rotating shaft 6 passes through the top cover 21 and is fixed to the brush assembly 7. The geared motor 5 is fixed on the top cover 21 and is used to drive the rotating shaft 6 to rotate. The brush assembly 7 includes a central rod and a vertical rod. The central rod is connected to the rotating shaft 6. Several bristles are evenly installed on the side of the vertical rod. Multiple connecting rods 71 ​​are evenly fixed between the vertical rod and the central rod. The cross-section of the connecting rod 71 is rhomboid.

[0023] The filter tank has a cross-shaped structure at the position corresponding to the drain outlet 24. A positioning hole is provided in the middle of the cross-shaped structure, and the central rod is rotatably connected in the positioning hole.

[0024] By incorporating an anti-clogging mechanism, the brush assembly 7, driven by the geared motor 5, scrapes along the inner wall of the filter element 4, which can remove impurities clogging the filter element 4, thus ensuring that the filter element 4 always has a good filtration effect.

[0025] Reference Figure 1 The mobile trolley 1 is also equipped with a diaphragm pump 8 connected to the feed inlet 22, and a drain pipe is connected to the drain outlet 24.

[0026] The implementation principle of a mixed liquid filtration device for coating production according to an embodiment of this application is as follows:

[0027] In use, the diaphragm pump 8 pumps the paint mixture into the filter tank. After the paint is filtered by the filter element 4, it enters the clean discharge area 25 and is then discharged through the discharge port 23, thus achieving filtration. During the long-term filtration process, the impurities attached to the surface of the filter element 4 gradually settle to the bottom of the filter element 4, i.e., the drain port 24, under the action of gravity. After a period of time, simply open the valve 3 in the drain port 24, and under the action of the paint pressure, the impurities are discharged from the drain port 24 along with the paint (the discharged paint can be filtered again later). There is no need to disassemble the filter element 4 to remove impurities, making it more convenient to use.

[0028] Meanwhile, by setting up an anti-clogging mechanism, the brush assembly 7 is driven by the geared motor 5 to scrape along the inner wall of the filter element 4, which can remove the impurities that are blocked on the filter element 4, so as to ensure that the filter element 4 always has a good filtration effect.

[0029] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A mixture filtration device for paint production, comprising a mobile trolley (1) and a filter tank mounted on the mobile trolley (1), wherein a filter element (4) is installed inside the filter tank, characterized in that: The filter tank includes a tank body (2) and a top cover (21) detachably mounted on the tank body (2). The tank body (2) has an inlet (22) and an outlet (23) on its side. The tank body (2) has a drain outlet (24) at its bottom. A valve (3) is installed in the drain outlet (24). The filter element (4) is a cylindrical shape with openings at both ends. The filter tank has an annular protrusion. The filter element (4) is fixedly sealed on the annular protrusion. The bottom end of the filter element (4) is sealed against the bottom wall of the filter tank. A clean discharge area (25) is formed between the annular protrusion, the filter element (4), and the filter tank. The outlet (23) is connected to the clean discharge area (25). The middle part of the filter element (4) is directly connected to the drain outlet (24). The top of the tank body (2) corresponding to the annular protrusion is the feed area (26). The feed inlet (22) is connected to the feed area (26).

2. The paint production mixture filtration device according to claim 1, characterized in that: The filter canister is also equipped with an anti-clogging mechanism, which includes a geared motor (5), a rotating shaft (6) and a brush assembly (7). The brush assembly (7) is matched and arranged inside the filter element (4). The rotating shaft (6) passes through the top cover (21) and is fixed to the brush assembly (7). The geared motor (5) is fixed on the top cover (21) and is used to drive the rotating shaft (6) to rotate.

3. The paint production mixture filtration device according to claim 2, characterized in that: The brush assembly (7) includes a central rod and a vertical rod. The central rod is connected to the rotating shaft (6). Several bristles are evenly installed on the side of the vertical rod. Multiple connecting rods (71) are evenly fixed between the vertical rod and the central rod. The cross-section of the connecting rod (71) is rhomboid.

4. The paint production mixture filtration device according to claim 3, characterized in that: The filter tank has a cross-shaped structure corresponding to the drain outlet (24), and a positioning hole is provided in the middle of the cross-shaped structure. The central rod is rotatably connected in the positioning hole.

5. The paint production mixture filtration device according to claim 1, characterized in that: The mobile trolley (1) is also equipped with a diaphragm pump (8) that is connected to the feed inlet (22).

6. The paint production mixture filtration device according to claim 1, characterized in that: The drain outlet (24) is connected to a drain pipe.