Anti-pollution modularized paint mist collecting system

Abstract

The invention discloses an anti-pollution modularized paint mist collecting system. Relates to the technical field of paint mist treatment. A plurality of ventilation pipes are arranged on the partition plate in a penetrating mode, the air inlet ends of the ventilation pipes are located on one side of the partition plate, and the air outlet ends of the ventilation pipes are located on the other side of the partition plate; the collection units are adaptively arranged in the ventilation pipe, and air carrying paint mist enters the ventilation pipe from the air inlet end of the ventilation pipe, sequentially penetrates through the collection units and then is exhausted from the air outlet end of the ventilation pipe; and the replacement unit comprises a replacement mechanism and a movable storage shell, the storage shell is used for storing a new collection unit, the replacement mechanism is arranged at the top of the storage shell, and the replacement mechanism is used for replacing the blocked collection unit. According to the paint mist filtering and collecting device, the operation environment can be improved and the operation cost can be reduced while the paint mist filtering and collecting effects are achieved.

Description

Technical Field

[0001] This application relates to the field of paint mist treatment technology, specifically to a pollution-preventing modular paint mist collection system. Background Technology

[0002] Painting is a highly polluting and energy-intensive industry. The collection of paint mist generated in painting production lines has always been an important issue in the industry, especially for the painting lines of vehicle manufacturers, which produce a large amount of overspray paint mist.

[0003] In existing technologies, paint mist treatment generally includes dry and wet methods. Dry treatment primarily uses a limestone / mineral powder adsorption system. This system automatically and evenly sprays extremely fine limestone or mineral powder (as the adsorption medium) into the air. Paint mist particles collide with and adhere to the powder, forming larger, dry clumps. These clumps are then collected by a filter, offering high treatment efficiency and no wastewater. Wet treatment primarily uses a Venturi paint mist treatment system. This system uses a Venturi tube to spray water at high speed at the throat. The air is accelerated to high speed at the throat, pulverizing the water into very fine droplets. These droplets collide violently with and are adsorbed by the paint mist particles. Then, in the diffusion section, the velocity decreases, and the paint-containing water droplets are separated from the air by a centrifugal separator. This method offers extremely high treatment efficiency and is suitable for large-scale painting lines.

[0004] However, existing treatment methods have obvious drawbacks. The initial investment cost of lime powder / mineral powder adsorption systems is high, and adsorption powder needs to be stored and added before use. Venturi paint mist treatment systems have very high energy consumption, large water consumption, and require wastewater treatment, resulting in high operating costs. Summary of the Invention

[0005] In order to overcome the problems of high energy consumption and high operating costs of existing paint mist treatment equipment, this application provides a pollution-preventing modular paint mist collection system.

[0006] This application adopts the following technical solution: a modular anti-pollution paint mist collection system, comprising: a partition, wherein a plurality of ventilation pipes are provided through the partition, the air inlet end of the ventilation pipes is located on one side of the partition, and the air outlet end is located on the other side of the partition; a collection unit, wherein a plurality of collection units are adapted to be disposed within the ventilation pipes, and air carrying paint mist enters the ventilation pipes through the air inlet end of the ventilation pipes, passes through the plurality of collection units in sequence, and is discharged from the air outlet end of the ventilation pipes; a replacement unit, wherein the replacement unit includes a replacement mechanism and a movable storage shell, the storage shell is used to store new collection units, and the replacement mechanism is disposed on the top of the storage shell and is used to replace clogged collection units.

[0007] Optionally, the partition is used to separate the painting workshop, with one side of the partition being a treatment area with more paint mist and the other side of the partition being a clean area without paint mist. The air inlet of the ventilation pipe is located in the treatment area, and the air outlet of the ventilation pipe is located in the clean area.

[0008] Optionally, the collection unit includes a housing and a plurality of collection columns disposed within the housing. The housing has an air inlet on the side facing the air inlet end of the ventilation pipe and an air outlet on the side facing the air outlet end of the ventilation pipe. The outer wall of the housing is in close contact with the inner wall of the storage shell and the inner wall of the ventilation pipe. The collection column is a hollow structure, and the outer wall of the collection column has a plurality of windows that communicate with the inner cavity of the collection column. A tubular collection net is placed inside the collection column for collecting paint mist.

[0009] Optionally, the housing is provided with a pair of mounting plates, and a plurality of collecting columns are inserted between the pair of mounting plates. The density of the plurality of collecting columns in the housing gradually increases from the air inlet to the air outlet.

[0010] Optionally, the bottom of the ventilation duct is provided with a replacement port, which is close to the air outlet of the ventilation duct. A slide rail is provided below the replacement port, which extends along the laying direction of several ventilation ducts. The storage shell is adapted to slide on the slide rail. The top of the storage shell is provided with a release port, which can be coaxial with any of the replacement ports. The collection unit inside the storage shell enters the ventilation duct through the release port and the replacement port. The distance between the release port and the replacement port is less than the height of the collection unit.

[0011] Optionally, the replacement mechanism includes a lifting assembly and a pushing assembly; the lifting assembly includes a linear slide and a tray, the tray being disposed inside the storage housing and used to support the collection unit inside the storage housing; the side wall of the storage housing is provided with a vertically extending groove and a guard plate, the guard plate being located outside the groove; the linear slide is mounted on the guard plate, the tray being connected to the slide seat of the linear slide; the linear slide is used to drive the tray and the collection unit inside the storage housing to move along the height direction of the storage housing; the pushing assembly includes a vertical plate, a support rod, and an electric push rod; the vertical plate is located outside the storage housing, and the vertical plate is connected to the storage housing via the support rod; the electric push rod is disposed on the vertical plate and located outside the air outlet end of the ventilation pipe, the electric push rod being used to push the collection unit inside the ventilation pipe to move along the length direction of the ventilation pipe.

[0012] Optionally, the end of the electric push rod is provided with a push plate, the radial cross-sectional area of ​​the push plate is smaller than the radial cross-sectional area of ​​the ventilation pipe, and the upright plate is a perforated plate.

[0013] Optionally, the upper part of the side wall connecting the storage shell and the support rod is provided with an insertion port, the insertion port is close to the release port, and a cover plate is adaptedly inserted into the insertion port. One end of the cover plate extends through the insertion port to the inner side of the storage shell and covers the collection unit inside the storage shell, and the other end of the cover plate passes through the upright plate. A first rack is provided on the top of the cover plate and on the outer side of the storage shell, and a second rack is provided on the top of the electric push rod and above the first rack. A drive gear driven by an electric motor is provided between the first rack and the second rack. The upper part of the drive gear meshes with the second rack, and the lower part of the drive gear meshes with the first rack.

[0014] Optionally, the upright plate has an upper notch and a lower notch, the electric push rod passes through the upper notch, and the cover plate passes through the lower notch; the upper notch has a pair of first groove plates, which are used to clamp the electric push rod, and the electric push rod can slide between the pair of first groove plates; the lower notch has a pair of second groove plates, which are used to clamp the cover plate, and the cover plate can slide between the pair of second groove plates; both the first groove plates and the second groove plates are fixedly connected to the upright plate and extend toward the direction of the ventilation pipe.

[0015] Optionally, the number of support rods is not less than two, and the multiple support rods are spaced apart along the width direction of the upright plate. Each support rod is provided with two support plates, and the two support plates are respectively and correspondingly provided on both sides of the upright plate and used to clamp and support the upright plate.

[0016] Compared with the prior art, this application has the following advantages: 1. By setting several ventilation pipes at intervals along the length of the partition and setting several collection units inside the ventilation pipes, the air containing paint mist is drawn into the ventilation pipes and passes through several collection units in sequence, thereby collecting the paint mist. This creates a treatment area with more paint mist and a clean area without paint mist on one side of the partition. The collection unit is made of a shell, collection column and collection net with simple structure and readily available materials, which has the characteristics of low cost and good paint mist collection effect.

[0017] 2. Through the cooperation of the drive gear with the first and second racks, the cover plate and the electric push rod are linked, which makes it easy and accurate for the new collection unit in the storage shell to enter the ventilation pipe, and pushes the old collection unit under the action of the electric push rod to replace the old collection unit, ensuring that the collection unit in the ventilation pipe can reliably collect paint mist. Attached Figure Description

[0018] Figure 1 This is a schematic perspective view of this application; Figure 2 This is a reference diagram showing the location and status of the ventilation ducts and replacement units; Figure 3 It is a schematic three-dimensional representation of the collection unit. Figure 1 ; Figure 4 It is a schematic three-dimensional representation of the collection unit. Figure 2 ; Figure 5 This is a reference diagram of the explosion state of the collection unit; Figure 6 It is a schematic 3D diagram of the collection column; Figure 7 It is a schematic 3D diagram illustrating the replacement of the unit; Figure 8 This is a cross-sectional view of the internal structure of the storage shell; Figure 9 This is a reference diagram showing the assembly state of the cover plate and the electric push rod; Figure 10 This is a reference diagram showing the assembly state of the electric actuator and the second rack; In the diagram: 1. Partition; 2. Ventilation duct; 21. Air inlet; 22. Air outlet; 23. Replacement port; 3. Collection unit; 31. Housing; 311. Air inlet; 312. Air outlet; 313. Mounting plate; 32. Collection column; 321. Window; 322. Collection net; 4. Replacement Unit; 41. Replacement Mechanism; 411. Linear Slide Table; 412. Support Plate; 413. Vertical Plate; 4131. Upper Notch; 4132. Lower Notch; 4133. First Slot Plate; 4134. Second Slot Plate; 414. Support Rod; 4140. Support Plate; 415. Electric Push Rod; 4151. Push Plate; 4152. Second Rack; 416. Cover Plate; 4160. First Rack; 417. Electric Motor; 4170. Drive Gear; 42. Storage Shell; 421. Release Port; 422. Slide Groove; 423. Protective Plate; 424. Insertion Port; 43. Slide Rail; 5. Area to be processed; 6. Cleaned area. Detailed Implementation

[0019] The present application will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0020] Figure 1 This is a schematic perspective view of this application. Figure 2 This is a reference diagram showing the location and status of the ventilation ducts and replacement units. (Participate) Figure 1 and Figure 2 A modular paint mist collection system for pollution prevention includes a partition 1, a collection unit 3, and a replacement unit 4. Several ventilation pipes 2 are installed on the partition 1 and are spaced apart along the length of the partition 1. The air inlet 21 of the ventilation pipe 2 is located on one side of the partition 1 and the air outlet 22 is located on the other side of the partition 1. An air extraction pipe can be installed on the ventilation pipe 2 so that the ventilation pipe 2 can be in a negative pressure state, or the other side of the partition 1 can be set as a negative pressure chamber so that air on one side of the partition 1 can be drawn into the ventilation pipe 2. The collection unit 3 has the function of filtering and collecting paint mist in the air. At the same time, the inner cavity of the ventilation pipe 2 is adapted to the shape of the collection unit 3. In this way, the air carrying paint mist enters the ventilation pipe 2 through the air inlet 21 and passes through the collection unit 3 in sequence. After the paint mist is collected by several collection units 3, the clean air can be discharged from the air outlet 22 of the ventilation pipe 2. Thus, the partition 1 plays a role in separating the painting workshop. That is, the side of the partition 1 at the air inlet 21 of the ventilation pipe 2 is the treatment area 5 with more paint mist, and the side of the partition 1 at the air outlet 22 of the ventilation pipe 2 is the clean area 6 with less or no paint mist.

[0021] Figure 3 It is a schematic three-dimensional representation of the collection unit. Figure 1 , Figure 4 It is a schematic three-dimensional representation of the collection unit. Figure 2 See also Figure 3 and Figure 4 The collection unit 3 includes a housing 31, a pair of mounting plates 313 disposed inside the housing 31, and a plurality of collection columns 32 inserted between the pair of mounting plates 313. The housing 31 has an air inlet opening 311 on the side facing the air inlet end 21 of the ventilation pipe 2 and an air outlet opening 312 on the side facing the air outlet end 22 of the ventilation pipe 2.

[0022] Figure 5 This is a reference diagram of the explosion state of the collection unit. Figure 6 This is a schematic 3D diagram of the collection column. (Participate) Figure 5 and Figure 6 and combined Figure 1The outer wall of the housing 31 is in contact with the inner wall of the ventilation pipe 2. The collection column 32 is a hollow structure. Several windows 321 are provided on the outer wall of the collection column 32. The windows 321 are connected to the inner cavity of the collection column 32. A tubular collection net 322 is placed inside the collection column 32.

[0023] See Figure 1 , Figure 4 and Figure 5 After the air carrying paint mist is drawn into the ventilation duct 2, it enters the inside of the housing 31 through the air inlet 311. Since the outer wall of the collection column 32 is provided with a window 321, when the air flows inside the housing 31, part of it will flow directly on the outside of the collection column 32 toward the air outlet 312 of the housing 31, and the other part will pass through the window 321 into the inside of the collection column 32. Since a collection net 322 is provided on the inside of the collection column 32, the paint mist in the air will be trapped in the collection net 322 as the air passes through it, thus achieving the function of collecting the paint mist. Furthermore, the density of the collection columns 32 within the housing 31 gradually increases from the air inlet 311 towards the air outlet 312. This results in a lower density of collection columns 32 near the air inlet 311, facilitating the rapid entry and flow of air carrying paint mist into the housing 31. Conversely, a higher density of collection columns 32 near the air outlet 312 ensures that all air passes through at least one collection column 32, guaranteeing smooth airflow while reliably filtering and collecting the paint mist. The series connection of multiple collection units 3 within the ventilation duct 2 enables multi-stage collection, improving the paint mist collection effect. The housing 31 can be constructed using corrugated cardboard or plastic sheeting, significantly reducing the production cost of the collection units 3 and consequently lowering the operating cost of the collection system.

[0024] Figure 7 This is a schematic 3D diagram illustrating the replacement of the unit. Figure 8 This is a cross-sectional view of the internal structure of the storage shell. See also... Figure 7 and Figure 8 and combined Figure 1This embodiment also includes a replacement unit 4. After a period of operation, the collection unit 3 near the air inlet 21 of the ventilation duct 2 will gradually become saturated. At this time, the airflow in the ventilation duct 2 will gradually decrease, and the saturated collection unit 3 needs to be replaced by the replacement unit 4. The replacement unit 4 includes a replacement mechanism 41, a slide rail 43, and a storage shell 42. The slide rail 43 is located below the air outlet 22 of the ventilation duct 2 and extends along the laying direction of several ventilation ducts 2. The replacement mechanism 41 is located on top of the storage shell 42. The shape of the storage shell 42 is similar to that of the ventilation duct 2 and is used to store new collection units 3. A pulley can be provided at the bottom of the storage shell 42 to allow the storage shell 42 to slide on the slide rail 43. Furthermore, a replacement port 23 is provided at the bottom of the ventilation pipe 2, which is close to the air outlet 22 of the ventilation pipe 2. A release port 421 is provided at the top of the storage shell 42. By sliding the storage shell 42 on the slide rail 43, the release port 421 can be aligned with any of the replacement ports 23. In this way, the collection unit 3 inside the storage shell 42 can enter the ventilation pipe 2 through the release port 421 and the replacement port 23.

[0025] join Figure 1 and Figure 8 The operation of the collection unit 3 entering the ventilation pipe 2 from the storage shell 42 is completed by the lifting assembly, which includes a linear slide 411 and a support plate 412. The support plate 412 is located inside the storage shell 42 and is used to support the collection unit 3 inside the storage shell 42. The side wall of the storage shell 42 is provided with a vertically extending groove 422 and a protective plate 423. The protective plate 423 is located outside the groove 422. The linear slide 411 is installed on the protective plate 423. The support plate 412 is connected to the slide seat of the linear slide 411. Thus, when the release port 421 of the storage shell 42 is aligned with the replacement port 23 of a ventilation pipe 2, the linear slide 411 starts to drive the support plate 412 to move upward. In this way, the collection unit 3 located at the top of the storage shell 42 will be pushed into the ventilation pipe 2. When a new collection unit 3 enters the ventilation duct 2, the pushing component can push the new collection unit 3 to extend along the length of the ventilation duct 2. In this way, the new collection unit 3 will dock with the old collection unit 3. Under the continuous pushing of the pushing component, the old collection unit 3 at the front will be pushed out of the ventilation duct 2. In this way, the progressive replacement of the collection unit 3 is realized, so that the saturation of the paint mist collected by several collection units 3 decreases, thereby improving the utilization rate of the collection unit 3.

[0026] Figure 9 This is a reference diagram showing the assembly state of the cover plate and the electric push rod. Figure 10 This is a reference diagram showing the assembly state of the electric actuator and the second rack. (Participate) Figure 9 and Figure 10 and combined Figure 8The pushing component includes a vertical plate 413, support rods 414, and an electric push rod 415. The vertical plate 413 is a perforated plate and is located outside the storage shell 42. The vertical plate 413 and the storage shell 42 are connected by at least two support rods 414. The support rods 414 are spaced apart along the width direction of the vertical plate 413. Each support rod 414 is provided with two support pieces 4140. The two support pieces 4140 are respectively and correspondingly provided on both sides of the vertical plate 413 and are used to clamp and support the vertical plate 413. The vertical plate 413 has an upper notch 4131 and a lower notch 4132. A pair of first groove plates 4133 are provided in the upper notch 4131. The first groove plates 4133 are fixedly connected to the vertical plate 413 and extend toward the ventilation pipe 2. The electric push rod 415 is clamped by the pair of first groove plates 4133 and can slide between the pair of first groove plates 4133. A pair of second groove plates 4134 are provided in the lower notch 4132. The second groove plates 4134 are also fixedly connected to the upright plate 413 and extend toward the ventilation pipe 2. The pair of second groove plates 4134 are used to clamp the cover plate 416, and the cover plate 416 can slide between the pair of second groove plates 4134. An insertion port 424 is provided on the upper part of the side wall where the storage shell 42 is connected to the support rod 414. The insertion port 424 is close to the release port 421. One end of the cover plate 416 is clamped by the pair of second groove plates 4134, and the other end of the cover plate 416 extends toward the storage shell 42 and is fitted into the insertion port 424. A first rack 4160 is provided on the top of the cover plate 416 and on the outside of the storage shell 42. A second rack 4152 is provided on the top of the electric push rod 415 and above the first rack 4160. A drive gear 4170 driven by a motor 417 is provided between the first rack 4160 and the second rack 4152. The upper part of the drive gear 4170 meshes with the second rack 4152, and the lower part of the drive gear 4170 meshes with the first rack 4160. The motor 417 can be connected to the storage shell 42 through a bracket to ensure that the motor 417 is in a reliable working state.

[0027] When the replacement unit 4 is in standby mode, the cover plate 416 is inserted into the socket 424, and all the collection units 3 in the storage shell 42 are located below the cover plate 416, which has a dustproof effect. When it is necessary to replace the collection unit 3 in the ventilation pipe 2 and the storage shell 42 is moved to the corresponding position, the motor 417 drives the drive gear 4170 to rotate. Since the first rack 4160 and the second rack 4152 are meshed on the upper and lower sides of the drive gear 4170, the first rack 4160 and the second rack 4152 move in opposite directions. In this way, the cover plate 416 can move away from the socket 424, and the cover plate 416 will not completely detach from the socket 424. At the same time, the electric push rod 415 can move towards the air outlet 22 of the ventilation pipe 2, and the electric push rod 415 will not fall off between the first slot plates 4133. Then, the linear slide 411 drives the new collection unit 3 into the ventilation duct 2 and keeps it stationary. At this time, the electric push rod 415 starts to move, pushing the new collection unit 3 to move within the ventilation duct 2 and pushing out the old and saturated collection unit 3. The electric push rod 415 is mounted on the upright plate 413 and located outside the air outlet 22 of the ventilation duct 2. The end of the electric push rod 415 is provided with a push plate 4151. The radial cross-sectional area of ​​the push plate 4151 is smaller than the radial cross-sectional area of ​​the ventilation duct 2. Meanwhile, the upright plate 413 is a perforated plate, so that the air outlet 22 of the ventilation duct 2 will not be blocked when the electric push rod 415 pushes the collection unit 3, thus realizing the online replacement of the collection unit 3. Furthermore, the distance between the release port 421 and the replacement port 23 is less than the height of the collection unit 3. In this way, when the electric push rod 415 pushes the uppermost collection unit 3 in the storage shell 42, the collection unit 3 below it will not move horizontally due to static friction between the two. That is, the action of the electric push rod 415 will not interfere with the other collection units 3 in the storage shell 42.

[0028] After the old and saturated collection unit 3 is pushed out from the air inlet 21 of the ventilation duct 2, the linear slide 411 drives the tray 412 and the remaining collection unit 3 to reset. The motor 417 then rotates in the opposite direction, thereby resetting the cover plate 416 and the electric push rod 415. In this way, the cover plate 416 once again seals and protects the collection unit 3 inside the storage shell 42, while the electric push rod 415 is kept away from the ventilation duct 2, ensuring that the electric push rod 415 will not collide with the ventilation duct 2 when the storage shell 42 slides on the slide rail 43. The old and saturated collection unit 3 can be centrally recycled after the painting is completed in the painting workshop. The operator only needs to operate the replacement unit 4 and replenish the collection unit 3 in the storage shell 42 in the clean area 6, ensuring reliable collection of paint mist in the painting workshop while improving the operating environment.

[0029] The above embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of protection of this application. Any non-substantial changes and substitutions made by those skilled in the art based on this application shall fall within the scope of protection claimed by this application.

Claims

1. A modular paint mist collection system for pollution prevention, characterized in that, include: A partition (1) is provided with several ventilation pipes (2), the air inlet (21) of the ventilation pipes (2) is located on one side of the partition (1) and the air outlet (22) is located on the other side of the partition (1); Collection unit (3), several collection units (3) are adapted to be installed in the ventilation pipe (2). Air carrying paint mist enters the ventilation pipe (2) from the air inlet (21), passes through several collection units (3) in sequence, and is discharged from the air outlet (22) of the ventilation pipe (2). Replacement unit (4), the replacement unit (4) includes a replacement mechanism (41) and a movable storage shell (42), the storage shell (42) is used to store new collection units (3), the replacement mechanism (41) is located on the top of the storage shell (42), the replacement mechanism (41) is used to replace the blocked collection unit (3).

2. The anti-pollution modular paint mist collection system according to claim 1, characterized in that, The partition (1) is used to separate the painting workshop. One side of the partition (1) is the treatment area (5) with more paint mist, and the other side of the partition (1) is the clean area (6) without paint mist. The air inlet (21) of the ventilation pipe (2) is located in the treatment area (5), and the air outlet (22) of the ventilation pipe (2) is located in the clean area (6).

3. The anti-pollution modular paint mist collection system according to claim 1, characterized in that, The collection unit (3) includes a housing (31) and a plurality of collection columns (32) disposed in the housing (31). The housing (31) has an air inlet (311) on the side facing the air inlet end (21) of the ventilation pipe (2) and an air outlet (312) on the side facing the air outlet end (22) of the ventilation pipe (2). The outer wall of the housing (31) is in contact with the inner wall of the storage housing (42) and the inner wall of the ventilation pipe (2). The collecting column (32) is a hollow structure. Several windows (321) are provided on the outer wall of the collecting column (32). The windows (321) are connected to the inner cavity of the collecting column (32). A tubular collecting net (322) is placed inside the collecting column (32). The collecting net (322) is used to collect paint mist.

4. The anti-pollution modular paint mist collection system according to claim 2, characterized in that, The housing (31) is provided with a pair of mounting plates (313), and a plurality of collection columns (32) are inserted between the pair of mounting plates (313). The density of the plurality of collection columns (32) in the housing (31) gradually increases from the air inlet (311) toward the air outlet (312).

5. The anti-pollution modular paint mist collection system according to claim 4, characterized in that, The bottom of the ventilation pipe (2) is provided with a replacement port (23), which is close to the air outlet (22) of the ventilation pipe (2). A slide rail (43) is provided below the replacement port (23), which extends along the laying direction of the ventilation pipes (2). The storage shell (42) slides on the slide rail (43) in a suitable manner. The top of the storage shell (42) is provided with a release port (421), which can be coaxial with any of the replacement ports (23). The collection unit (3) inside the storage shell (42) enters the ventilation pipe (2) through the release port (421) and the replacement port (23). The distance between the release port (421) and the replacement port (23) is less than the height of the collection unit (3).

6. The anti-pollution modular paint mist collection system according to claim 5, characterized in that, The replacement mechanism (41) includes a lifting component and a pushing component; The lifting assembly includes a linear slide (411) and a tray (412). The tray (412) is disposed inside the storage shell (42) and is used to support the collection unit (3) inside the storage shell (42). The side wall of the storage shell (42) is provided with a vertically extending groove (422) and a guard plate (423). The guard plate (423) is located outside the groove (422). The linear slide (411) is mounted on the guard plate (423). The tray (412) is connected to the slide seat of the linear slide (411). The linear slide (411) is used to drive the tray (412) and the collection unit (3) inside the storage shell (42) to move along the height direction of the storage shell (42). The pushing assembly includes a vertical plate (413), a support rod (414), and an electric push rod (415). The vertical plate (413) is located outside the storage shell (42), and the vertical plate (413) and the storage shell (42) are connected by the support rod (414). The electric push rod (415) is located on the vertical plate (413) and outside the air outlet (22) of the ventilation pipe (2). The electric push rod (415) is used to push the collection unit (3) inside the ventilation pipe (2) to move along the length of the ventilation pipe (2).

7. The anti-pollution modular paint mist collection system according to claim 6, characterized in that, The end of the electric push rod (415) is provided with a push plate (4151), the radial cross-sectional area of ​​the push plate (4151) is smaller than the radial cross-sectional area of ​​the ventilation pipe (2), and the upright plate (413) is a perforated plate.

8. A modular paint mist collection system for pollution prevention according to claim 6, characterized in that, The upper part of the side wall connecting the storage shell (42) and the support rod (414) is provided with an insertion port (424). The insertion port (424) is close to the release port (421). A cover plate (416) is adapted to be inserted into the insertion port (424). One end of the cover plate (416) extends through the insertion port (424) to the inside of the storage shell (42) and covers the collection unit (3) inside the storage shell (42). The other end of the cover plate (416) passes through the upright plate (413). A first rack (4160) is provided on the top of the cover plate (416) and on the outside of the storage shell (42). A second rack (4152) is provided on the top of the electric push rod (415) and above the first rack (4160). A drive gear (4170) driven by an electric motor (4170) is provided between the first rack (4160) and the second rack (4152). The upper part of the drive gear (4170) meshes with the second rack (4152), and the lower part of the drive gear (4170) meshes with the first rack (4160).

9. A modular paint mist collection system for pollution prevention according to claim 8, characterized in that, The upright plate (413) is provided with an upper notch (4131) and a lower notch (4132). The electric push rod (415) passes through the upper notch (4131), and the cover plate (416) passes through the lower notch (4132). The upper notch (4131) is provided with a pair of first groove plates (4133), the pair of first groove plates (4133) are used to clamp the electric push rod (415), and the electric push rod (415) can slide between the pair of first groove plates (4133); The lower notch (4132) is provided with a pair of second groove plates (4134), which are used to clamp the cover plate (416), and the cover plate (416) can slide between the pair of second groove plates (4134); The first groove plate (4133) and the second groove plate (4134) are both fixedly connected to the vertical plate (413) and extend toward the ventilation pipe (2).

10. A modular paint mist collection system for pollution prevention according to claim 8, characterized in that, The number of support rods (414) is not less than two, and the multiple support rods (414) are spaced apart along the width direction of the upright plate (413). Each support rod (414) is provided with two support pieces (4140). The two support pieces (4140) are respectively and correspondingly provided on both sides of the upright plate (413) and are used to clamp and support the upright plate (413).

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