A multi-stage filtering device for composite coating production

Abstract

The utility model relates to a paint production technical field, concretely is a kind of filter device of staging for composite coating production, including filter box and feeding port, several groups of filter plate are installed along vertical to in filter box, and the position of filter box side end corresponding each filter plate is connected and is installed with the guide channel of oblique setting, the other end of guide channel is installed with the grinding mechanism of carrying out rebreak to filter unqualified particle, the end of grinding mechanism is installed with the circulating mechanism of re-feeding grinding particle into filter box.The utility model is provided with guide channel, grinding mechanism and circulating mechanism etc., the material meeting the particle size of filter plate can fall in the material receiving box on the baffle, the material not meeting is then into grinding mechanism, after regrinding, re-feeding to the upper part of filter box by circulating mechanism, carries out again screening;Unqualified material need not be returned to grinding procedure and be ground, realize grinding, screening and recirculation integration work, and production efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of coating production technology, specifically a staged filtration device for composite coating production. Background Technology

[0002] Coatings are applied to the surface of objects to be protected or decorated, forming a continuous film that adheres firmly to the object. They are usually viscous liquids made primarily of resins, oils, or emulsions, with selective pigments, fillers, and appropriate additives, and formulated with organic solvents or water.

[0003] For solid or liquid composite coatings with fixed fillers, multi-stage filtration is required beforehand to remove larger particles and ensure a smooth final coating. To reuse the screened material, it is typically collected and returned to a grinding or pulverizing unit for further processing, which is inconvenient and inefficient. Therefore, a multi-stage filtration device for composite coating production is proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a staged filtration device for composite coating production, which integrates grinding, screening, and recycling, significantly improving production efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a staged filtration device for composite coating production, comprising a filter box and a feeding port opened on one side of the top of the filter box. Several sets of filter plates are installed vertically inside the filter box. From top to bottom, the aperture of the filter plates gradually decreases. An inclined material guiding channel is installed on the side of the filter box corresponding to the position of each filter plate. A grinding mechanism for re-crushing unqualified particles is installed at the other end of the material guiding channel. A circulation mechanism for re-feeding the ground particles back into the filter box is installed at the end of the grinding mechanism.

[0006] Preferably, the grinding mechanism includes a housing, inside which several sets of grinding rings are vertically mounted, and the same rotating shaft is rotatably mounted on the housing between the multiple sets of grinding rings. Grinding blocks are fixed on the rotating shaft at the positions corresponding to the grinding rings. The size of the grinding blocks gradually increases from top to bottom, and a servo motor that drives the rotating shaft is mounted on the housing.

[0007] Preferably, a vibration motor is installed at the bottom of the filter plate, and the filter plate is inclined.

[0008] Preferably, the circulation mechanism includes a circulation pipe installed in communication with the housing, the other end of the circulation pipe extending into the filter box and facing downwards, and the extension end of the circulation pipe being located above the filter plate, and a fan is installed on the circulation pipe.

[0009] Preferably, a partition is fixed to the lower side of the inside of the filter box, and the portion of the circulation pipe that passes through the filter box is located below the partition.

[0010] Preferably, a buffer element is embedded in the horizontal section of the circulation pipe at the inlet end; the buffer element includes a ring rotatably installed in the horizontal section of the circulation pipe, and a filter screen is fixed inside the ring.

[0011] Preferably, scrapers are installed on both sides of the filter screen inside the circulation pipe.

[0012] This utility model provides a staged filtration device for composite coating production, which has the following advantages compared with the prior art:

[0013] 1. The system is equipped with a material guiding channel, a grinding mechanism, and a circulation mechanism. Materials that meet the particle size of the filter plate will fall into the receiving box on the partition, while materials that do not meet the size will enter the grinding mechanism. After being ground again, the materials will be added back to the top of the filter box through the circulation mechanism for further screening. There is no need to return unqualified materials to the grinding process for further grinding. This system integrates grinding, screening, and recycling, which greatly improves production efficiency.

[0014] 2. A buffer is installed on the circulation pipe. The air force carries the abrasive particles out from the horizontal section of the circulation pipe. Most of the air force is sprayed horizontally, which will not agitate the powder on the top of the uppermost filter plate. After long-term operation, the filter screen may become clogged. At this time, rotating the ring will drive the filter screen inside to rotate. The abrasive particles accumulated on the filter screen will be scraped off by the scraper, detach from the filter screen and fall down. The overall operation is simple and convenient. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0016] Figure 1 This is a schematic diagram of the tiered filtration device of this utility model;

[0017] Figure 2 This is a cross-sectional view of the tiered filtration device of this utility model;

[0018] Figure 3 This is a cross-sectional view of the internal structure of the housing of this utility model;

[0019] Figure 4 This is a schematic diagram of the filter plate structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the buffer structure of this utility model.

[0021] In the diagram: 1-Filter box, 2-Feeding port, 31-Filter plate, 32-Vibration motor, 4-Guide channel, 5-Grinding mechanism, 6-Circulation mechanism, 7-Buffer, 8-Baffle plate;

[0022] 51-Housing, 52-Servo motor, 53-Rotating shaft, 54-Grinding ring, 55-Grinding block; 61-Circulation pipe, 62-Fan; 71-Ring, 72-Filter screen, 73-Scraper rod. Detailed Implementation

[0023] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0024] Example 1

[0025] In the production process of composite coatings, to avoid accumulation and clogging caused by large size differences, multi-layer screening is usually performed to ensure high-efficiency screening. This embodiment provides a multi-stage filtration device for composite coating production, such as... Figures 1-5 As shown, it includes a filter box 1 and a feeding port 2 located on the top side of the filter box 1. A partition 8 is fixed to the lower side of the interior of the filter box 1. The feeding port 2 can be optionally equipped with a cover. Several sets of filter plates 31 are vertically installed inside the filter box 1. A vibration motor 32 is installed at the bottom of the filter plate 31, and the filter plate 31 is inclined. From top to bottom, the aperture of the filter plate 31 gradually decreases, that is, the aperture of the uppermost filter plate 32 is larger than that of the lowermost filter plate 32. An inclined guide channel 4 is installed on the side of the filter box 1 corresponding to the position of each filter plate 31. The particles intercepted by the filter plate 31 will enter the grinding mechanism 5 along the guide channel 4. The other end of the guide channel 4 is equipped with a grinding mechanism 5 for re-crushing the unqualified particles. The end of the grinding mechanism 5 is equipped with a circulation mechanism 6 for re-feeding the ground particles back into the filter box 1. The coating material to be screened enters the upper part of the filter box 1 through the feeding port 2 and falls onto the uppermost filter plate 31. The vibration motor 32 drives the filter plate 31 to vibrate. Material that meets the particle size requirement falls onto the middle filter plate 31, while material that does not meet the size requirement moves towards the guide channel 4 under the action of gravity and vibration, and enters the grinding mechanism 5 through the guide channel 4. According to this principle, material that meets the particle size requirement of the middle and lowermost filter plates 31 falls into the receiving box on the partition 8, while material that does not meet the size requirement enters the grinding mechanism 5. After being ground again, it is added back to the upper part of the filter box 1 through the circulation mechanism 6 for screening again. There is no need to return unqualified material to the grinding process for grinding, realizing the integrated operation of grinding, screening and recycling, which greatly improves production efficiency.

[0026] Specifically, different filter plates 31 retain materials with different particle sizes, so the grinding device must be able to grind materials of different particle sizes individually to prevent insufficient grinding. Therefore, the grinding mechanism 5 includes a housing 51, inside which several sets of grinding rings 54 are vertically mounted. The same rotating shaft 53, which is rotatably mounted on the housing 51, runs through the multiple sets of grinding rings 54. Grinding blocks 55 are fixed to the rotating shaft 53 at the positions corresponding to the grinding rings 54. From top to bottom, the size of the grinding blocks 55 gradually increases. As a result, the distance between the outer wall of the grinding block 55 and the inner wall of the grinding ring 54 is different at different positions. For example, the distance between the uppermost grinding block 55 and the grinding ring 54 is the largest to meet the grinding of large-particle-size materials, and the distance between the lowermost grinding block 55 and the grinding ring 54 is the smallest to meet the grinding of small-particle-size materials. A servo motor 52 that drives the rotating shaft 53 is mounted on the housing 51. During the tiered screening process, the servo motor 52 is started, which drives the rotating shaft 53 to rotate, thereby simultaneously driving multiple sets of grinding rings 54 to rotate, grinding the material entering the housing 51 from the material guide channel 4, making the particle size smaller, and the ground material will fall to the lower part of the housing 51.

[0027] In this embodiment, the circulation mechanism 6 includes a circulation pipe 61 connected to the bottom of the housing 51. The other end of the circulation pipe 61 extends into the filter box 1 and faces downwards, with the extended end of the circulation pipe 61 located above the filter plate 31. A fan 62 is mounted on the circulation pipe 61. The portion of the circulation pipe 61 that traverses the filter box 1 is located below the partition plate 8. When the fan 62 is started, the grinding particles at the bottom of the housing 51 enter the circulation pipe 61. Driven by the airflow of the fan 62, the grinding particles re-enter the filter box 1 along the circulation pipe 61 for screening, achieving integrated grinding, screening, and recirculation, significantly improving production efficiency.

[0028] Example 2

[0029] If all the airflow is ejected from the inlet end of the circulation pipe 61, it can easily agitate the powder, causing pollution to the surrounding environment. Therefore, a buffer 7 is embedded in the horizontal section of the inlet end of the circulation pipe 61; the buffer 7 includes a ring 71 rotatably installed in the horizontal section of the circulation pipe 61, and a filter screen 72 is fixed inside the ring 71. Scrapers 73 are installed on both sides of the circulation pipe 61 corresponding to the filter screen 72. The airflow carrying the abrasive particles flows out from the horizontal section port of the circulation pipe 61. Most of the airflow is ejected horizontally and will not agitate the powder on the top of the uppermost filter plate 31. The abrasive particles are blocked by the filter screen 72 and continue to remain in the circulation pipe 61. Under the action of gravity and a small amount of downward airflow, the abrasive particles in the circulation pipe 61 flow downward and fall onto the uppermost filter plate 31. After prolonged operation, the filter screen may become clogged. At this time, rotating the ring 71 causes the filter screen 72 inside to rotate. The abrasive particles accumulated on the filter screen 72 are scraped off by the scraper 73, detach from the filter screen 72 and fall down. The overall operation is simple and convenient.

[0030] 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 these 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. A staged filtration device for composite coating production, comprising a filter box (1) and a feeding port (2) opened on one side of the top of the filter box (1), characterized in that: The filter box (1) is vertically installed with several sets of filter plates (31). From top to bottom, the aperture of the filter plates (31) gradually decreases. The side end of the filter box (1) is connected to the position of each filter plate (31) with an inclined guide channel (4). The other end of the guide channel (4) is equipped with a grinding mechanism (5) for re-crushing the unqualified particles. The end of the grinding mechanism (5) is equipped with a circulation mechanism (6) for re-feeding the ground particles into the filter box (1).

2. The staged filtration device for composite coating production according to claim 1, characterized in that: The grinding mechanism (5) includes a housing (51), and several sets of grinding rings (54) are installed vertically inside the housing (51). The same rotating shaft (53) is rotatably installed between the multiple sets of grinding rings (54). A grinding block (55) is fixed on the rotating shaft (53) at the position corresponding to the grinding ring (54). The size of the grinding block (55) gradually increases from top to bottom, and a servo motor (52) that drives the rotating shaft (53) is installed on the housing (51).

3. The staged filtration device for composite coating production according to claim 1, characterized in that: The filter plate (31) is equipped with a vibration motor (32) at its bottom end, and the filter plate (31) is inclined.

4. The staged filtration device for composite coating production according to claim 1, characterized in that: The circulation mechanism (6) includes a circulation pipe (61) installed in communication with the housing (51). The other end of the circulation pipe (61) extends into the filter box (1) and faces downward. The end of the circulation pipe (61) is located above the filter plate (31). A fan (62) is installed on the circulation pipe (61).

5. The staged filtration device for composite coating production according to claim 4, characterized in that: The filter box (1) has a partition (8) fixed on the lower side inside, and the part of the circulation pipe (61) that runs through the filter box (1) is located below the partition (8).

6. The staged filtration device for composite coating production according to claim 4, characterized in that: A buffer (7) is fitted into the horizontal section of the end of the circulation pipe (61); the buffer (7) includes a ring (71) rotatably mounted on the horizontal section of the circulation pipe (61), and a filter screen (72) is fixed inside the ring (71).

7. The staged filtration device for composite coating production according to claim 6, characterized in that: Scraper rods (73) are installed on both sides of the filter screen (72) inside the circulation pipe (61).

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