Multilayer filter screen dust removal and purification device for powder coating

Abstract

The utility model relates to the technical field of dust removal and purification, and discloses a multi-layer filter screen dust removal and purification device for powder coatings, which comprises a support frame, a support plate is fixedly connected to the rear side of the top of the support frame, and a filter mechanism is arranged at the top of the support frame and is used for realizing a filter effect. A replacement mechanism is arranged on the right side of the top of the supporting frame, the replacement mechanism is used for replacing the purification object, the filtering mechanism comprises a supporting box, the bottom of the supporting box is fixedly connected to the left side of the top of the supporting frame, and a negative pressure machine is fixedly connected to the top of the supporting box. According to the dust removing and filtering device, suction force is generated through the negative pressure machine, the suction range is expanded through the flow guide frame, it is ensured that all working dust can be sucked into the filtering pipeline, then the working dust is filtered through the filter screens, the dust removing and filtering effects are achieved, and when cleaning is needed, the first bevel gear is driven by the motor to rotate, so that the filter plate is cleaned, and blocking is prevented.

Description

Technical Field

[0001] This utility model relates to the field of dust removal and purification technology, and in particular to a multi-layer filter screen powder coating dust removal and purification device. Background Technology

[0002] In modern industrial systems, powder coatings have become a core material for key industries such as automobile manufacturing, home appliance production, and building decoration due to their outstanding environmental performance, high coating efficiency, and strong coating durability. However, throughout the entire life cycle of powder coatings, from the production stages of raw material mixing, grinding, and sieving to application processes such as electrostatic spraying, a large number of dust particles with a wide range of particle sizes are inevitably generated, ranging from coarse particles at the millimeter level to inhalable particles at the micrometer and even nanometer level. In the production workshop, the mechanical force generated by stirring the raw materials during the mixing process causes the powder particles to break free from their binding and disperse into the work space. The grinding process further refines the powder through physical crushing, exacerbating the generation of fine dust. Powder that does not pass through the sieve during the sieving stage will also form dust and be dispersed. In the coating stage, only a portion of the powder in the electrostatic spraying process can accurately adhere to the surface of the workpiece, while a large amount of unused powder coating is suspended in the air as dust, forming continuous pollution.

[0003] If such dust is not effectively controlled, it will cause multiple risks. When the dust concentration in the workshop exceeds the explosion limit and is triggered by open flame, high temperature and electrostatic discharge, it will cause a violent dust explosion, resulting in major casualties and property damage. Traditional dust removal technology is no longer able to meet the stringent requirements of modern industry. Single filters are limited by structural design and can only trap larger dust particles. They have little effect on filtering micron-sized fine particles, making it difficult for exhaust gas emissions to meet environmental protection standards. The research and application of multi-layer filter powder coating dust removal and purification devices has become an inevitable trend. By adopting a graded filtration structure and setting different filtration levels of coarse, medium and high efficiency filters, precise graded filtration of dust of different particle sizes can be achieved, greatly improving dust removal efficiency and ensuring that exhaust gas emissions meet or even exceed environmental protection standards. However, filter cleaning requires manual replacement, which is cumbersome and can easily cause dust to be re-raised. Maintenance requires professional tools, which delays production. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a multi-layer filter screen powder coating dust removal and purification device, which aims to improve the problems in the existing technology where filter cleaning requires manual replacement, the process is cumbersome and easily leads to secondary dust re-entrainment, maintenance requires professional tools, and production is delayed.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a multi-layer filter powder coating dust removal and purification device, including a support frame, a support plate fixedly connected to the top rear side of the support frame, a filter mechanism provided at the top of the support frame for achieving a filtration effect, a replacement mechanism provided at the top right side of the support frame for replacing the purified material, the filter mechanism including a support box, the bottom of the support box fixedly connected to the top left side of the support frame, a negative pressure machine fixedly connected to the top of the support box, a guide frame fixedly connected to the left side of the support box, a filter pipe connected to the right side of the support box, a coarse filter fixedly connected to the inner left end of the filter pipe, a fine filter fixedly connected to the inner middle of the filter pipe, an ultrafine filter fixedly connected to the inner right end of the filter pipe, an adjustment component provided at the top front side of the support frame, a connecting component provided at the top of the filter pipe, and a positioning component provided at the middle of the connecting component.

[0006] As a further description of the above technical solution:

[0007] The replacement mechanism includes a collector, the bottom of which is fixedly connected to the top right side of the support frame. The top of the collector is connected to a discharge pipe, and a purification box is slidably connected to the top inner side of the discharge pipe. A support plate is slidably connected to the bottom inner side of the purification box. Bolts are threaded around the bottom of the support plate, and the tops of the bolts penetrate the support plate and engage with the bottom of the purification box. A mounting base is fixedly connected to the top of the support plate, and a purification component is provided on the top of the mounting base. A fixing component is provided on the outer wall of the purification box.

[0008] As a further description of the above technical solution:

[0009] The adjustment assembly includes a support block, the bottom of which is fixedly connected to the middle of the front side of the top of the support frame. A motor is fixedly connected to the top of the support block. A bevel gear one is fixedly connected to the output end of the motor. A bevel gear two is meshed with the outer wall of the bevel gear one. A threaded rod is fixedly connected to the middle of the bevel gear two.

[0010] As a further description of the above technical solution:

[0011] The connecting assembly includes a T-shaped plate, the rear side of which is slidably connected to the front side of the support plate, the front middle part of which is threadedly connected to the outer wall of the threaded rod, and two long plates are fixedly connected to the middle part of the T-shaped plate.

[0012] As a further description of the above technical solution:

[0013] The positioning component includes multiple positioning posts, each of which is engaged with the front and rear sides of the coarse filter, fine filter, and ultrafine filter at one adjacent end. The long plate has multiple positioning holes in the middle.

[0014] As a further description of the above technical solution:

[0015] The purification component includes activated carbon, the bottom of which is mounted on the top of the mounting base. Positioning pins are slidably connected to both the left and right sides of the mounting base, and each adjacent side of the positioning pin penetrates the mounting base and engages with the outer wall of the activated carbon.

[0016] As a further description of the above technical solution:

[0017] The fixing assembly includes two fixing blocks 1. Each of the adjacent sides of the fixing blocks 1 is fixedly connected to the outer wall of the discharge pipe. The top of the left and right sides of the purification box is fixedly connected to fixing blocks 2. Each fixing block 2 has a locking post in the middle, and the bottom of the locking post engages with the middle of the corresponding fixing block 1.

[0018] As a further description of the above technical solution:

[0019] A protective cover is fixedly connected to the top front side of the support frame, and two U-shaped frames are fixedly connected to the bottom of the filter pipe.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, suction is generated by a negative pressure machine, and the absorption range is expanded by the guide frame to ensure that all dust is sucked into the filter pipe, avoiding dust diffusion. The dust is filtered through coarse, fine and ultrafine filters to achieve the dust removal effect. When cleaning is required, the motor drives the rotation of bevel gear one to pull the corresponding filter plate out of the filter pipe for cleaning, improving filtration efficiency and preventing clogging.

[0022] 2. In this utility model, the filtered gas is introduced into the collector and purified by activated carbon to remove odors, and then discharged from the purification box at the top of the discharge pipe, making the discharged gas cleaner and more environmentally friendly. When it is necessary to replace the internal activated carbon, the locking column can be rotated to cancel the locking state with the fixing block, then the bolt fixing can be removed, and finally the locking state between the activated carbon and the positioning pin can be removed to complete the replacement of the activated carbon. This is suitable for continuous construction scenarios and reduces the impact on the construction progress. Attached Figure Description

[0023] Figure 1 This is a perspective view of the front side of the support frame of the multi-layer filter powder coating dust removal and purification device proposed in this utility model;

[0024] Figure 2A diagram showing the motor of the multi-layer filter powder coating dust removal and purification device proposed in this utility model;

[0025] Figure 3 This is a split view of the long plate of the multi-layer filter powder coating dust removal and purification device proposed in this utility model;

[0026] Figure 4 This is a split view of the discharge pipe of the multi-layer filter powder coating dust removal and purification device proposed in this utility model;

[0027] Figure 5 This is a schematic diagram of the purification box of the multi-layer filter powder coating dust removal and purification device proposed in this utility model.

[0028] Legend:

[0029] 1. Support frame; 2. Filtration mechanism; 201. Support box; 202. Negative pressure unit; 203. Flow guide frame; 204. Filter pipe; 205. Coarse filter screen; 206. Fine filter screen; 207. Ultrafine filter screen; 208. Adjustment component; 2081. Support block; 2082. Motor; 2083. Bevel gear one; 2084. Bevel gear two; 2085. Threaded rod; 209. Connecting component; 2091. T-shaped plate; 2092. Long plate; 210. Fixed... Positioning component; 2101, positioning post; 2102, positioning hole; 3, replacement mechanism; 301, collector; 302, discharge pipe; 303, purification box; 304, support plate; 305, bolt; 306, mounting base; 307, purification component; 3071, activated carbon; 3072, positioning pin; 308, fixing component; 3081, fixing block one; 3082, fixing block two; 3083, locking post; 4, support plate; 5, protective cover; 6, U-shaped frame. Detailed Implementation

[0030] 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.

[0031] Please see the appendix Figure 1 - Appendix Figure 3This utility model provides an embodiment of a multi-layer filter screen powder coating dust removal and purification device, including a support frame 1. A support plate 4 is fixedly connected to the top rear side of the support frame 1. A filter mechanism 2 is provided on the top of the support frame 1 to achieve a filtration effect. A replacement mechanism 3 is provided on the top right side of the support frame 1 for replacing the purified material. The filter mechanism 2 includes a support box 201. The bottom of the support box 201 is fixedly connected to the top left side of the support frame 1, and a negative pressure unit 202 is fixedly connected to the top of the support box 201. A guide frame 203 is fixedly connected to the left side of the support box 201, and a filter pipe 204 is connected to the right side of the support box 201. A coarse filter screen 205 is fixedly connected to the left inner side of the filter pipe 204, a fine filter screen 206 is fixedly connected to the middle inner side of the filter pipe 204, and an ultrafine filter screen 207 is fixedly connected to the right inner side of the filter pipe 204. An adjustment component 208 is provided on the front top of the support frame 1, a connecting component 209 is provided on the top of the filter pipe 204, and a positioning component 210 is provided in the middle of the connecting component 209.

[0032] Specifically, the support frame 1 possesses excellent stability and durability, capable of withstanding various pressures and vibrations generated during device operation. A support plate 4 is installed on the top rear side of the support frame 1 to enhance the stability of the entire device. A filter mechanism 2 is installed on the top of the support frame 1, achieving the dust removal effect for powder coatings. Through multi-layer filtration, it effectively separates dust particles from the air, ensuring that the discharged air meets environmental standards. A replacement mechanism 3 is installed on the top right side of the support frame 1. As the purified material gradually becomes saturated over time, affecting the filtration effect, it needs to be replaced. The main function of the replacement mechanism 3 is to facilitate the convenient replacement of the purified material. The bottom of the support box 201 is fixedly connected to the top left side of the support frame 1, ensuring the stability of the entire filtration mechanism. To ensure stability, a negative pressure unit 202 is fixedly connected to the top of the support box 201, providing strong suction to promote airflow within the device and enhance filtration. A guide frame 203 is fixedly connected to the left side of the support box 201, guiding airflow to ensure even distribution of incoming air within the filter pipe 204, thus optimizing the filtration process. A coarse filter 205 is fixedly connected to the inner left end of the filter pipe 204, with larger mesh sizes for initial filtration of larger particles. A fine filter 206 is fixedly connected to the inner middle of the filter pipe 204, further filtering smaller particles. An ultrafine filter 207 is fixedly connected to the inner right end of the filter pipe 204, capturing extremely fine particles and effectively filtering out tiny airborne particles.

[0033] Please see the appendix Figure 3 - Appendix Figure 5The replacement mechanism 3 includes a collector 301. The bottom of the collector 301 is fixedly connected to the top right side of the support frame 1. The top of the collector 301 is connected to a discharge pipe 302. The top inner side of the discharge pipe 302 is slidably connected to a purification box 303. The bottom inner side of the purification box 303 is slidably connected to a support plate 304. Bolts 305 are threaded around the bottom of the support plate 304. The top of each bolt 305 passes through the support plate 304 and engages with the bottom of the purification box 303. A mounting base 306 is fixedly connected to the top of the support plate 304. A purification component 307 is provided on the top of the mounting base 306. A fixing component 308 is provided on the outer wall of the purification box 303.

[0034] Specifically, the bottom of the collector 301 is connected to the top right side of the support frame 1 to ensure the stability and reliability of the overall structure. The top of the collector 301 has a discharge pipe 302, which realizes the discharge of internal gas. The bottom of the inner side of the purification box 303 is connected to the support plate 304 by a sliding connection. Bolts 305 are evenly distributed around the bottom of the support plate 304. The top of the bolts 305 penetrates the support plate 304 and engages with the bottom of the purification box 303, further enhancing the stability of the overall structure.

[0035] Please see the appendix Figure 2 - Appendix Figure 4 The purification component 307 includes activated carbon 3071. The bottom of the activated carbon 3071 is installed on the top of the mounting base 306. Positioning pins 3072 are slidably connected to the left and right sides of the mounting base 306. The adjacent side of the positioning pins 3072 penetrates the mounting base 306 and engages with the outer wall of the activated carbon 3071. A protective cover 5 is fixedly connected to the top front side of the support frame 1. Two U-shaped frames 6 are fixedly connected to the bottom of the filter pipe 204. The fixing component 308 includes two fixing blocks 3081. The adjacent side of the fixing blocks 3081 is fixedly connected to the outer wall of the discharge pipe 302. Fixing blocks 3082 are fixedly connected to the top of the left and right sides of the purification box 303. A locking post 3083 is provided in the middle of the fixing block 3082. The bottom of the locking post 3083 engages with the middle of the corresponding fixing block 3081.

[0036] Specifically, the bottom of activated carbon 3071 is installed on the top of mounting base 306 to ensure its fixed and stable position. There are sliding positioning pins 3072 on both the left and right sides of mounting base 306. The adjacent side of these positioning pins 3072 passes through mounting base 306 and is tightly engaged with the outer wall of activated carbon 3071, thereby further enhancing the structural stability of the entire purification component 307. The protective cover 5 is used to protect the internal components from interference and damage from external factors. The bottom of filter pipe 204 is fixedly connected to two U-shaped frames 6. These two U-shaped frames 6 not only provide additional support, but also optimize the layout and stability of filter pipe 204. The bottom of the engaging column 3083 engages with the middle of the corresponding fixing block 3081 to form a connection structure, which further improves the stability and reliability of the entire structure.

[0037] Please see the appendix Figure 2 - Appendix Figure 4 The adjusting assembly 208 includes a support block 2081, the bottom of which is fixedly connected to the middle of the front side of the top of the support frame 1. A motor 2082 is fixedly connected to the top of the support block 2081. A bevel gear 2083 is fixedly connected to the output end of the motor 2082. A bevel gear 2084 is meshed with the outer wall of the bevel gear 2083. A threaded rod 2085 is fixedly connected to the middle of the bevel gear 2084. The connecting assembly 209 includes a T-plate 2091. The rear side of the profile plate 2091 is slidably connected to the front side of the support plate 4. The front side of the middle part of the T-shaped plate 2091 is threadedly connected to the outer wall of the threaded rod 2085. Two long plates 2092 are fixedly connected to the middle part of the T-shaped plate 2091. The positioning component 210 includes multiple positioning posts 2101. The adjacent ends of the positioning posts 2101 are engaged with the front and rear sides of the coarse filter screen 205, the fine filter screen 206 and the ultrafine filter screen 207. Multiple positioning holes 2102 are opened in the middle of the long plate 2092.

[0038] Specifically, the bottom of the support block 2081 is fixedly connected to the middle of the front side of the top of the support frame 1, ensuring the stability and support force of the entire component. The top of the support block 2081 is connected to the motor 2082. The outer wall of the first bevel gear 2083 meshes with the second bevel gear 2084, forming a transmission system to ensure smooth and efficient power transmission. The middle of the second bevel gear 2084 is fixedly connected to the threaded rod 2085. The rear side of the T-shaped plate 2091 is connected to the front side of the support plate 4 by a sliding connection. The front side of the middle of the T-shaped plate 2091 is connected to the threaded rod 2085. The outer wall of the threaded rod 2085 is connected by threads to ensure the fit and precise adjustment between the two. Two long plates 2092 are also fixedly connected to the middle of the T-shaped plate 2091. The adjacent ends of the positioning post 2101 are engaged with the front and rear sides of the coarse filter 205, fine filter 206 and ultrafine filter 207 to ensure the position between the filters and facilitate adjustment. Multiple positioning holes 2102 are opened in the middle of the long plate 2092. These positioning holes 2102 cooperate with the positioning post 2101 to further improve the positioning accuracy of the entire component and the stability of the overall structure.

[0039] Working principle: The negative pressure machine 202 generates suction, and the guide frame 203 expands the absorption range to ensure that all dust is drawn into the filter pipe 204, preventing dust diffusion. After the exhaust gas is drawn into the filter pipe 204, it is filtered through the coarse filter 205, fine filter 206 and ultrafine filter 207 to achieve dust removal and filtration effect, improving the breathing environment of construction personnel. When cleaning is required, the positioning column 2101 is passed through the corresponding positioning column 2101 and engaged with the corresponding filter plate. Then, the motor 2082 drives the rotation of the first bevel gear 2083. The rotation of the first bevel gear 2083 drives the rotation of the meshing second bevel gear 2084, which in turn drives the rotation of the threaded rod 2085, which in turn drives the T-shaped plate 2091 to rise, thereby pulling the corresponding filter plate out of the filter pipe 204 for cleaning, improving filtration efficiency, preventing clogging, and facilitating the reuse of the filter plate after cleaning, which is in line with the concept of green construction.

[0040] The filtered gas enters the collector 301 where it is purified and deodorized by activated carbon 3071, and then discharged from the purification box 303 at the top of the discharge pipe 302, making the discharged gas cleaner and more environmentally friendly. When it is necessary to replace the activated carbon 3071 inside, the locking column 3083 can be rotated to release the locking state with the first fixing block 3081, then the second fixing block 3082 can be removed, then the bolt 305 can be released, the support plate 304 can be removed, and finally the locking state between the activated carbon 3071 and the positioning pin 3072 can be released to complete the replacement of the activated carbon 3071. No complicated tools and cumbersome steps are required, which shortens the maintenance time, is suitable for continuous construction scenarios, and reduces the impact on the construction progress.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-layer filter screen powder coating dust removal and purification device, comprising a support frame (1), characterized in that: A support plate (4) is fixedly connected to the top rear side of the support frame (1). A filter mechanism (2) is provided on the top of the support frame (1). The filter mechanism (2) is used to achieve the filtration effect. A replacement mechanism (3) is provided on the top right side of the support frame (1). The replacement mechanism (3) is used to replace the purified material. The filtration mechanism (2) includes a support box (201), the bottom of which is fixedly connected to the top left side of the support frame (1), a negative pressure machine (202) is fixedly connected to the top of the support box (201), a flow guide frame (203) is fixedly connected to the left side of the support box (201), a filter pipe (204) is connected to the right side of the support box (201), a coarse filter screen (205) is fixedly connected to the left inner side of the filter pipe (204), a fine filter screen (206) is fixedly connected to the middle inner side of the filter pipe (204), an ultrafine filter screen (207) is fixedly connected to the right inner side of the filter pipe (204), an adjustment component (208) is provided on the front top side of the support frame (1), a connecting component (209) is provided on the top of the filter pipe (204), and a positioning component (210) is provided in the middle of the connecting component (209).

2. The multi-layer filter screen powder coating dust removal and purification device according to claim 1, characterized in that: The replacement mechanism (3) includes a collector (301), the bottom of which is fixedly connected to the top right side of the support frame (1). The top of the collector (301) is connected to a discharge pipe (302). The top of the discharge pipe (302) is slidably connected to a purification box (303). The bottom of the purification box (303) is slidably connected to a support plate (304). Bolts (305) are threaded around the bottom of the support plate (304). The top of each bolt (305) penetrates the support plate (304) and engages with the bottom of the purification box (303). A mounting base (306) is fixedly connected to the top of the support plate (304). A purification component (307) is provided on the top of the mounting base (306). A fixing component (308) is provided on the outer wall of the purification box (303).

3. The multi-layer filter screen powder coating dust removal and purification device according to claim 1, characterized in that: The adjustment component (208) includes a support block (2081), the bottom of which is fixedly connected to the middle of the front side of the top of the support frame (1). A motor (2082) is fixedly connected to the top of the support block (2081). A bevel gear (2083) is fixedly connected to the output end of the motor (2082). A bevel gear (2084) is meshed with the outer wall of the bevel gear (2083). A threaded rod (2085) is fixedly connected to the middle of the bevel gear (2084).

4. The multi-layer filter screen powder coating dust removal and purification device according to claim 3, characterized in that: The connecting assembly (209) includes a T-shaped plate (2091), the rear side of which is slidably connected to the front side of the support plate (4), the front middle part of which is threadedly connected to the outer wall of the threaded rod (2085), and two long plates (2092) are fixedly connected to the middle part of the T-shaped plate (2091).

5. The multi-layer filter screen powder coating dust removal and purification device according to claim 4, characterized in that: The positioning component (210) includes multiple positioning posts (2101), with each adjacent end of the positioning post (2101) engaging with the front and rear sides of the coarse filter (205), fine filter (206), and ultrafine filter (207). The long plate (2092) has multiple positioning holes (2102) in the middle.

6. The multi-layer filter screen powder coating dust removal and purification device according to claim 2, characterized in that: The purification component (307) includes activated carbon (3071), the bottom of which is mounted on the top of the mounting base (306). Positioning pins (3072) are slidably connected to both the left and right sides of the mounting base (306). The adjacent side of the positioning pins (3072) penetrates the mounting base (306) and engages with the outer wall of the activated carbon (3071).

7. The multi-layer filter screen powder coating dust removal and purification device according to claim 2, characterized in that: The fixing component (308) includes two fixing blocks (3081). The adjacent sides of the fixing blocks (3081) are fixedly connected to the outer wall of the discharge pipe (302). The top of the left and right sides of the purification box (303) are fixedly connected to fixing blocks (3082). The middle of each fixing block (3082) is provided with a locking post (3083). The bottom of each locking post (3083) is engaged with the middle of the corresponding fixing block (3081).

8. The multi-layer filter screen powder coating dust removal and purification device according to claim 1, characterized in that: A protective cover (5) is fixedly connected to the top front side of the support frame (1), and two U-shaped frames (6) are fixedly connected to the bottom of the filter pipe (204).

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