A paint mist collecting filter structure and a paint spray booth

Abstract

The utility model discloses a kind of lacquer mist collection filtering structures, comprising: collection area, trolley, positioning mechanism, filtering assembly, collection area is ground structure, and with the air inlet and exhaust port of being communicated with spray booth, trolley can be displaced and set in collection area, positioning mechanism is set between trolley and collection area, positioning mechanism is used to position trolley at air inlet, filtering assembly is installed in trolley, and filtering assembly is used for lacquer mist filtering.Lacquer mist collection structure is changed from underground to ground structure, significantly reduce the civil engineering and equipment investment cost, avoid the inconvenience that worker needs to disassemble grid and drill into operation of operation ditch when replacing filtering assembly, so that disassembly and replacement process is more convenient and efficient, displaceable trolley cooperates positioning mechanism, ensure that filtering assembly is accurately and stably positioned at air inlet, effectively reduce the phenomenon of paint leakage, trolley can be integrally removed, and material replacement operation is not limited by space, significantly improve worker's working environment and work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of paint mist treatment technology, and in particular to a paint mist collection and filtration structure. Background Technology

[0002] Overspray paint mist generated during the product surface coating process must be filtered and collected to ensure that the emitted gas does not contain solid pollutants and that the environment is not polluted.

[0003] The current method for treating paint mist involves laying a paint mist collection and filtration device at the bottom of the spray booth, consisting of filter cotton and filter paper boxes. Because it's installed at the bottom, a trench needs to be dug in the ground for the air duct, and a floor grating is installed over the trench to prevent workers from stepping on it. Since the paint mist filter needs frequent replacement, workers must remove the floor grating before each replacement to remove the filter cotton and filter paper boxes from the air duct. During this process, workers must bend over, easily getting paint and other dirt from the ground. The replacement process is cumbersome, unhygienic, and involves high initial investment in the ground infrastructure. Utility Model Content

[0004] This application provides a paint mist collection and filtration structure to solve the technical problems of cumbersome, unhygienic, and costly replacement processes for filter cotton and filter paper boxes in existing structures. This application also provides a spray booth that employs the aforementioned paint mist collection and filtration structure.

[0005] The first aspect of this application provides a paint mist collection and filtration structure, including:

[0006] The collection area is an above-ground structure and has an air inlet and an exhaust outlet that connect to the paint booth;

[0007] The trolley is movable and positioned within the collection area;

[0008] A positioning mechanism is disposed between the trolley and the collection area, and the positioning mechanism is used to position the trolley at the air inlet;

[0009] A filter assembly is installed on the trolley and is used to filter paint mist.

[0010] The beneficial effects of the above embodiments are as follows: Changing the paint mist collection structure from underground to above-ground significantly reduces civil engineering (ditch excavation, grating installation) and equipment investment costs. It also avoids the inconvenience of workers having to disassemble the grating and crawl into the trench to replace the filter components, making the replacement process more convenient and efficient. The movable trolley, in conjunction with the positioning mechanism, ensures that the filter components are accurately and securely positioned at the air inlet, effectively reducing paint leakage and improving paint mist collection efficiency. The trolley can be moved out as a whole, allowing for consumable replacement operations without space constraints, resulting in a cleaner environment less prone to dirt accumulation, thereby significantly improving the worker's working environment and work efficiency.

[0011] Based on the above embodiments, the embodiments of this application can be further improved as follows:

[0012] In one embodiment of this application: the collection area is a frame structure formed by a skeleton and surrounding panels, and the exhaust port is connected to an exhaust duct. The beneficial effects of this step are: the frame structure composed of the skeleton and surrounding panels facilitates assembly, reduces manufacturing costs and maintenance difficulty; simultaneously, the exhaust port is directly connected to the exhaust duct, ensuring smooth discharge of filtered air, reducing system resistance, improving ventilation efficiency, and preventing the accumulation of paint mist residue.

[0013] In one embodiment of this application: a track is provided in the collection area, and the trolley is rolled on the track by rollers. The beneficial effect of this step is that the design of the track and rollers makes the trolley move more smoothly and steadily, reduces frictional resistance, and makes it easier for workers to push and pull the trolley for positioning or retrieval.

[0014] In one embodiment of this application, the filter assembly is a multi-stage filtration structure. The beneficial effect of this step is that the multi-stage filtration structure achieves gradient capture, efficiently processes paint mist particles of different sizes, and improves overall filtration efficiency.

[0015] In one embodiment of this application: the filter assembly forms a primary filtration structure and a secondary filtration structure in the direction of paint mist flow. The beneficial effect of this step is that the two-stage filtration structure can effectively filter the paint mist.

[0016] In one embodiment of this application, a sealing structure is provided between the trolley and the collection area. The beneficial effects of this step are: the sealing structure effectively prevents paint mist leakage, ensures that all airflow passes through the filter components, and improves the paint mist capture rate; at the same time, it reduces the risk of contamination in the work area and improves the cleanliness of the working environment.

[0017] In one embodiment of this application: the sealing structure includes a sealing element, which is installed on the surface of the trolley facing the air inlet, and the sealing element contacts the inner wall of the collection area structure. The beneficial effect of this step is that the sealing element is directly placed in the direction of the air inlet and in close contact with the inner wall to form a sealing surface, effectively preventing external air infiltration and paint mist overflow.

[0018] In one embodiment of this application: the positioning mechanism applies a thrust to the trolley toward the air inlet. The beneficial effects of this step are: the positioning mechanism ensures the trolley is always firmly pressed against the air inlet, preventing displacement due to airflow or vibration in the paint spray chamber, avoiding gaps between the seal and the inner wall of the air inlet, and allowing paint mist to be filtered through the sealing assembly and discharged.

[0019] In one embodiment of this application: the positioning mechanism includes a clamping handle and a stop block. The stop block is installed in the collection area and has a guide slope facing the air inlet. The clamping handle is rotatably connected to the trolley and has a clamping part. During rotation, the clamping part contacts the guide slope and generates a thrust on the trolley towards the air inlet. The beneficial effects of this step are: the clamping handle and stop block structure provide a simple and reliable manual operation method; the thrust is amplified through the lever effect of the slope, allowing workers to lock the trolley with less effort; and the positioning process is fast and accurate.

[0020] A second aspect of this application provides a paint spray booth, including the aforementioned paint mist collection and filtration structure. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0022] Figure 1 A schematic diagram of the first structure of the paint mist collection and filtration structure;

[0023] Figure 2 This is a structural diagram of the car from the rear.

[0024] The components include: 1. Collection area; 101. Air inlet; 102. Exhaust outlet; 2. Cart; 3. Positioning mechanism; 301. Pressing handle; 302. Stop block; 4. Filter assembly; 401. Primary filter structure; 402. Secondary filter structure; and 5. Exhaust duct. Detailed Implementation

[0025] In this application, unless otherwise expressly specified and limited, the terminology used should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of different terms in this utility model according to the specific circumstances, and the scope of the specific meaning should be limited to achieving the function of this application.

[0026] In the description of this application, it should be understood that the directional terms or positional relationships described are based on the orientation or positional relationships shown in the accompanying drawings, or based on the orientation or positional relationships in actual use, and are only for the purpose of facilitating the description of the contents of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Example 1

[0028] like Figure 1 , 2 As shown, a paint mist collection and filtration structure includes: a collection area 1, a trolley 2, a positioning mechanism 3, and a filter assembly 4. The collection area 1 is a ground-level structure and has an air inlet 101 and an exhaust outlet 102 that communicate with the paint spray booth. The trolley 2 is movable and disposed in the collection area 1. The positioning mechanism 3 is disposed between the trolley 2 and the collection area 1. The positioning mechanism 3 is used to position the trolley 2 at the air inlet 101. The filter assembly 4 is installed on the trolley 2 and is used to filter the paint mist.

[0029] Specifically, such as Figure 1 As shown, the collection area 1 is a frame structure formed by a skeleton and a surrounding plate. The skeleton is formed by splicing steel sections, and the surrounding plate is a galvanized steel plate. The surrounding plate covers the outside of the skeleton and leaves an air inlet 101 at the front end, an exhaust outlet 102 at the top end, and an opening at the rear end for operators and the trolley 2 to enter and exit. The frame structure composed of the skeleton and the surrounding plate facilitates assembly operations and reduces manufacturing costs and maintenance difficulties.

[0030] Specifically, such as Figure 1 As shown, the air inlet 101 is connected to the paint booth area, and the exhaust outlet 102 is connected to the exhaust duct 5. The exhaust duct 5 is used to exhaust the filtered air to the outside of the paint booth. The exhaust duct 5 is made of galvanized steel plate, replacing the underground cement duct structure, which greatly reduces the investment cost. At the same time, the exhaust outlet 102 is directly connected to the exhaust duct 5 to ensure that the filtered air is discharged smoothly, reduce system resistance, improve ventilation efficiency, and avoid the accumulation of paint mist residue.

[0031] Specifically, such as Figure 1 , 2 As shown, the collection area 1 is equipped with a track, and the trolley 2 is rolled on the track by rollers. There are two tracks arranged side by side on the ground. The track is located between the air inlet 101 and the opening of the collection area 1. The lower end of the trolley 2 is equipped with four rollers, which consist of two directional wheels and two omnidirectional wheels. The paint mist trolley 2 can be pushed or pulled out through the wheel track, which facilitates the replacement of filter consumables.

[0032] Specifically, such as Figure 1 As shown, the filter component 4 is a multi-stage filtration structure. The multi-stage filtration structure realizes gradient capture, efficiently processes paint mist particles of different sizes, and improves the overall filtration efficiency.

[0033] Specifically, such as Figure 1As shown, the filter assembly 4 forms a primary filtration structure 401 and a secondary filtration structure 402 in the direction of paint mist flow. The primary filtration structure 401 uses a filter paper box, specifically a dry Venturi filter paper box, serving as the first layer of filtration for initial large-area, coarse particle filtration. The secondary filtration structure 402 uses filter cotton, specifically a pre-filter bag filter, serving as the second layer of filtration for further fine particle filtration. The two-stage filtration structure can effectively filter paint mist particles of different sizes.

[0034] Specifically, such as Figure 1 , 2 As shown, the trolley 2 has a frame structure, which is formed by splicing steel sections. The steel sections are surrounded by panels on the sides and inside. In the height direction, the interior of the trolley 2 forms a three-layer structure, and each layer is equipped with a filter paper box. A bag filter is installed at the rear end of the trolley 2. The bag filter is surrounded by panels to close the rear end of the trolley 2, so that the coarsely filtered paint mist after being filtered by the filter paper box must be filtered a second time through the bag filter. The four sides of the bag filter are fixed by limiting blocks connected to the frame of the trolley 2, thereby connecting the bag filter to the trolley 2.

[0035] Specifically, the trolley 2 and the collection area 1 have a sealing structure, which effectively prevents paint mist leakage and ensures that all airflow passes through the filter assembly 4, thereby improving the paint mist capture rate. At the same time, it reduces the risk of pollution in the work area and improves the cleanliness of the working environment.

[0036] Specifically, the sealing structure includes a sealing element, which is installed on the surface of the trolley 2 facing the air inlet 101. The sealing element is in contact with the inner wall of the collection area 1 structure. The sealing element is a sealing strip, which is inserted into the opening of the steel profile around the front end of the trolley 2. The sealing element is placed directly in the direction of the air inlet 101 and is in close contact with the inner wall to form a sealing surface, effectively preventing external air from seeping in and paint mist from overflowing.

[0037] Specifically, the positioning mechanism 3 applies a thrust to the trolley 2 in the direction of the air inlet 101. The positioning mechanism 3 keeps the trolley 2 firmly pressed against the air inlet 101, preventing displacement due to airflow or vibration in the paint spray chamber, avoiding gaps between the seal and the inner wall of the air inlet 101, so that paint mist can be filtered through the sealing assembly and discharged.

[0038] Specifically, such as Figure 2As shown, the positioning mechanism 3 includes a clamping handle 301 and a stop block 302. The stop block 302 is installed in the collection area 1 and has a guide slope facing the air inlet 101. The clamping handle 301 is rotatably connected to the trolley 2 and has a clamping part. During rotation, the clamping part contacts the guide slope and generates a thrust on the trolley 2 towards the air inlet 101. The structure of the clamping handle 301 and the stop block 302 provides a simple and reliable manual operation method. The thrust is amplified by the lever effect of the slope, allowing the worker to lock the trolley 2 with less effort, and the positioning process is fast and accurate.

[0039] Specifically, such as Figure 2 As shown, the baffle 302 is installed on the frame around the collection area 1. The baffles 302 are in pairs. The baffles 302 in the same group are symmetrically arranged on both sides of the trolley 2. The guide slope extends towards the opening direction, so that the two guide slopes in the same group form an opening structure with the large end on the side of the air inlet 101. The clamping handle 301 corresponds to the baffle 302 one by one. The clamping handle 301 is a crescent-shaped clamping handle 301. The crescent structure is the clamping part.

[0040] When this paint mist collection and filtration structure is in use, the paint mist enters the trolley 2 through the air inlet 101, undergoes primary filtration through the filter paper box, and then undergoes secondary filtration through the bag filter. The filtered gas is discharged through the exhaust port 102. When it is necessary to replace the consumables in the filter assembly 4, simply loosen the positioning mechanism 3, pull the trolley 2 out of the collection area 1, replace the filter consumables, and then push the trolley 2 back to the air inlet 101. The positioning mechanism 3 will then position the trolley 2.

[0041] Example 2

[0042] A paint spray booth includes the paint mist collection and filtration structure disclosed in Embodiment 1.

[0043] The above are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. A paint mist collection and filtration structure, characterized in that, include: The collection area is an above-ground structure and has an air inlet and an exhaust outlet that connect to the paint spraying booth; The trolley is movable and positioned within the collection area; A positioning mechanism is disposed between the trolley and the collection area, and the positioning mechanism is used to position the trolley at the air inlet; A filter assembly is installed on the trolley and is used to filter paint mist.

2. The paint mist collection and filtration structure according to claim 1, characterized in that, The collection area is a frame structure formed by a skeleton and surrounding panels, and the exhaust port is connected to an exhaust duct.

3. The paint mist collection and filtration structure according to claim 1, characterized in that, The collection area is equipped with a track, and the trolley is set on the track by rolling wheels.

4. The paint mist collection and filtration structure according to claim 1, characterized in that, The filter assembly has a multi-stage filtration structure.

5. The paint mist collection and filtration structure according to claim 4, characterized in that, The filter assembly forms a primary filtration structure and a secondary filtration structure in the direction of paint mist flow.

6. The paint mist collection and filtration structure according to claim 1, characterized in that, The trolley and the collection area have a sealed structure.

7. The paint mist collection and filtration structure according to claim 6, characterized in that, The sealing structure includes a sealing element, which is installed on the surface of the trolley facing the air inlet, and the sealing element is in contact with the inner wall of the collection area structure.

8. The paint mist collection and filtration structure according to claim 1, characterized in that, The positioning mechanism applies a thrust to the trolley in the direction of the air inlet.

9. The paint mist collection and filtration structure according to claim 1, characterized in that, The positioning mechanism includes a clamping handle and a stop block. The stop block is installed in the collection area and has a guide slope facing the air inlet. The clamping handle is rotatably connected to the trolley and has a clamping part. During rotation, the clamping part contacts the guide slope and generates a thrust on the trolley in the direction of the air inlet.

10. A spray booth, characterized in that, Includes the paint mist collection and filtration structure as described in any one of claims 1-9.

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