Powder coating processing dust and raw material recycling integrated equipment
By designing a double-layer filter screen and a hydraulically controlled filter box in the powder coating processing equipment, the problems of raw material waste and filter screen clogging are solved, realizing the recycling of coating powder and the efficient operation of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHU JINMAO ENVIRONMENTAL MATERIAL SCI & TECH CO LTD
- Filing Date
- 2025-08-26
- Publication Date
- 2026-07-24
AI Technical Summary
In the existing technology, the dust suppression equipment near the crusher tends to draw away the crushed raw material particles during use, resulting in material waste. Furthermore, the dust can easily clog the dust suppression equipment, affecting its performance.
An integrated dust suppression and raw material recycling device for powder coating processing was designed. By setting up a double-layer filter screen and a filter box controlled by a hydraulic cylinder, the device can recycle coating powder with qualified dimensions. The filter box is vibrated by the cooperation of a turntable and a protrusion to avoid filter screen clogging.
It enables the recycling of crushed paint powder, avoiding waste of raw materials, and prevents filter clogging through vibration, maintaining the high-efficiency operation of the equipment.
Smart Images

Figure CN224541944U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of powder coating processing, specifically an integrated equipment for dust reduction and raw material recycling in powder coating processing. Background Technology
[0002] Coating powders are commonly used in fields such as electrostatic spraying and anti-corrosion coatings. For example, the crushing and processing of epoxy resin powder and polyester powder is the core link in their production chain. The purpose is to crush and grind the polymerized block resin, pigment, additive mixture or coarse particulate raw materials into powder with uniform particle size, good flowability and good dispersibility, so as to meet the requirements of subsequent spraying processes for powder particle size and performance.
[0003] A search revealed a Chinese patent (authorization announcement number CN217450412U) disclosing a powder coating pulverizing device. This patented technology includes a housing with a feed hopper fixedly installed at the top. A guide pipe is rotatably connected to the inner wall of the top of the housing, and a crushing mechanism is located within the guide pipe. A placement plate is located inside the housing, and an annular inclined plate is fixedly installed on the placement plate, connected to the inner wall of the housing. A motor is fixedly installed at the bottom of the housing, and four symmetrically arranged support legs are also fixedly installed at the bottom. A rotating mechanism is located on the placement plate, and is driven by the crushing mechanism. A scraping mechanism is located on the annular inclined plate, and is driven by the crushing mechanism. Discharge holes are located on both sides of the guide pipe, and filter plates are fixedly installed on the inner walls of the discharge holes. This device features a simple structure, convenient operation, ensures thorough pulverization of the coating, and facilitates filtration and discharge, making it easy for users to operate.
[0004] In powder coating processing, it is often necessary to use a pulverizer to crush raw materials. During the crushing process, dust suppression equipment is used to suppress dust near the pulverizer. However, with existing technology, when using dust suppression equipment to suppress dust near the pulverizer, the crushed raw material particles are often extracted along with the pulverized material. Moreover, the extracted raw material particles cannot be recycled, resulting in waste of raw materials. Furthermore, when using dust suppression equipment to suppress dust near the pulverizer, the filtered dust is very likely to clog the dust suppression equipment, affecting its operation.
[0005] Therefore, this utility model provides an integrated equipment for dust reduction and raw material recycling in powder coating processing. Utility Model Content
[0006] To address the shortcomings of existing technologies and solve the problems of existing dust suppression equipment often removing crushed raw material particles along with the dust when used to suppress dust near the pulverizer, resulting in waste of raw materials as these particles cannot be recycled, and the fact that the filtered dust easily clogs the dust suppression equipment and affects its operation, this utility model proposes an integrated dust suppression and raw material recycling device for powder coating processing.
[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: The integrated dust suppression and raw material recycling equipment for powder coating processing of this utility model includes a base, a crushing bin fixedly connected to the top of the base, three rotating shafts equidistantly rotatably connected to the inner wall of the crushing bin, crushing rollers fixedly connected to the outer walls of each of the three rotating shafts, gears fixedly connected to the outer walls of each of the three rotating shafts, and the three gears meshing with each other. A motor is fixedly connected to the outer wall of the crushing bin, the output end of the motor extends into the interior of the crushing bin and is fixedly connected to one of the rotating shafts, and a sliding plate is slidably connected to the top of the base. A [missing information - likely a component or component] is fixedly connected to the top of the sliding plate. A support plate is provided, with a filter box slidably connected to its outer wall. A blower is fixedly connected to the bottom of the filter box, and the output end of the blower is connected to a first pipe. One end of the first pipe extends into the interior of the filter box. A second pipe is fixedly connected to the top of the filter box, and one end of the second pipe extends above the crushed material bin and is fixedly connected to a feed hopper. A first filter screen is fixedly connected to the inner wall of the filter box, and a second filter screen is fixedly connected to the inner wall of the filter box and below the first filter screen. The mesh size of the first filter screen is larger than that of the second filter screen. Both the first and second filter screens are installed at an angle. A circulation component is provided on the top of the slide plate.
[0008] Preferably, the circulation assembly includes a hydraulic cylinder, which is fixedly installed on the top of the slide plate. The output end of the hydraulic cylinder is fixedly connected to the filter box. A first through groove is provided on the outer wall of the filter box above the first filter screen. A second through groove is provided inside the support plate. A third through groove is provided on the outer wall of the crushing box.
[0009] Preferably, a guide plate is fixedly connected to the outer wall of the support plate and below the second through groove, one side of the guide plate extends into the interior of the third through groove, and the guide plate is installed at an angle.
[0010] Preferably, one end of one of the rotating shafts passes through the crushing bin and is fixedly connected to a turntable. Two protrusions are symmetrically fixedly connected to the outer wall of the turntable. The outer wall of the protrusions is set as a symmetrical inclined surface. Two top plates are symmetrically fixedly connected to the outer wall of the support plate. The protrusions and the top plates are used in conjunction. A reset component is provided inside the base.
[0011] Preferably, the reset assembly includes a slide shaft, which is fixedly installed inside the base. A slider is slidably connected to the outer wall of the slide shaft, and the slider is fixedly connected to the slide plate. A spring is sleeved on the outer wall of the slide shaft.
[0012] Preferably, a discharge valve is provided on the outer wall of the filter box above the second filter screen, and a drawer is slidably connected to the inner wall of the crushed material box below the third through groove.
[0013] Preferably, the outer wall of the crushing bin is provided with a control panel, and the motor, exhaust fan, and hydraulic cylinder are all electrically connected to the control panel.
[0014] The beneficial effects of this utility model are as follows: 1. The powder coating processing dust reduction and raw material recycling integrated equipment of this utility model filters the dust drawn into the filter box through a first filter screen, so that the paint powder that meets the size requirements but is accidentally drawn into the filter box is left on the first filter screen. The remaining dust passes through the first filter screen and is filtered by a second filter screen, so that the dust is left on the second filter screen. Excess air is discharged from the filter box through a first pipe. The filter box is moved downward by a hydraulic cylinder so that the first channel and the second channel are aligned. At this time, the paint powder left on the first filter screen falls onto the guide plate along the first channel and the second channel. Guided by the guide plate, the paint powder enters the crushing bin along the guide plate and the third channel. In this way, the accidentally drawn paint powder can be recycled and waste is avoided.
[0015] 2. The powder coating processing dust reduction and raw material recycling integrated equipment of this utility model, when the rotating shaft rotates, drives the turntable to rotate, causing the protrusion to rotate. Through the cooperation between the protrusion and the top plate, the filter box is continuously vibrated, so as to avoid the first filter screen and the second filter screen being blocked and affecting the filtration effect. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings.
[0017] Figure 1 This is a perspective view of the base of this utility model used in conjunction with the scrap bin; Figure 2 This is a perspective view of the material crushing bin and filter box used in conjunction with this utility model. Figure 3 This is a perspective view of the filter box of this utility model used in conjunction with the second channel. Figure 4 This is a cross-sectional view of the first and second filters of this utility model used together; Figure 5 This is a utility model Figure 4 Enlarged view of point A in the middle; In the diagram: 1. Base; 11. Grinding bin; 12. Shaft; 13. Grinding roller; 14. Gear; 15. Motor; 16. Control panel; 17. Slide plate; 18. Filter box; 19. Drawer; 2. Exhaust fan; 21. First pipe; 22. Second pipe; 23. Feed hopper; 24. First filter screen; 25. Second filter screen; 26. Discharge valve; 27. Hydraulic cylinder; 28. Support plate; 3. First through slot; 31. Second through slot; 32. Guide plate; 33. Third through slot; 34. Turntable; 35. Protrusion; 36. Top plate; 37. Sliding shaft; 38. Sliding block; 39. Spring. Detailed Implementation
[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0019] like Figures 1 to 5As shown, this utility model provides a technical solution: an integrated device for dust reduction and raw material recycling in powder coating processing. It includes a base 1, a crushing bin 11 fixedly connected to the top of the base 1, three rotating shafts 12 equidistantly rotatably connected to the inner wall of the crushing bin 11, crushing rollers 13 fixedly connected to the outer walls of each of the three rotating shafts 12, and gears 14 fixedly connected to the outer walls of each of the three rotating shafts 12, with the gears 14 meshing with each other. A motor 15 is fixedly connected to the outer wall of the crushing bin 11, with the output end of the motor 15 extending into the interior of the crushing bin 11 and fixedly connected to one of the rotating shafts 12. A sliding plate 17 is slidably connected to the top of the base 1, a support plate 28 is fixedly connected to the top of the sliding plate 17, a filter box 18 is slidably connected to the outer wall of the support plate 28, an exhaust fan 2 is fixedly connected to the bottom of the filter box 18, the output end of the exhaust fan 2 is connected to a first pipe 21, one end of the first pipe 21 extending into the interior of the filter box 18, and a second pipe 2 is fixedly connected to the top of the filter box 18. 2. One end of the second pipe 22 extends above the crushing bin 11 and is fixedly connected to the feed hopper 23. The inner wall of the filter box 18 is fixedly connected to the first filter screen 24. The inner wall of the filter box 18 and below the first filter screen 24 is fixedly connected to the second filter screen 25. The mesh size of the first filter screen 24 is larger than that of the second filter screen 25. Both the first filter screen 24 and the second filter screen 25 are installed at an angle. A circulation assembly is provided on the top of the slide plate 17. The circulation assembly includes a hydraulic cylinder 27, which is fixedly installed on the top of the slide plate 17. The output end of the hydraulic cylinder 27 is fixedly connected to the filter box 18. A first through groove 3 is opened on the outer wall of the filter box 18 and above the first filter screen 24. A second through groove 31 is opened inside the support plate 28. A third through groove 33 is opened on the outer wall of the crushing bin 11. A guide plate 32 is fixedly connected on the outer wall of the support plate 28 and below the second through groove 31. One side of the guide plate 32 extends into the interior of the third through groove 33. The guide plate 32 is installed at an angle.
[0020] Through the above technical solution, the hydraulic cylinder 27 controls the filter box 18 to move upward, causing the first through groove 3 and the second through groove 31 to be misaligned. The support plate 28 blocks the first through groove 3. The motor 15 is started, driving one of the rotating shafts 12 to rotate. Through the cooperation of the three gears 14, the three rotating shafts 12 rotate simultaneously, driving the three crushing rollers 13 to rotate simultaneously. The paint raw material is put into the crushing box 11. The rotating crushing rollers 13 crush the paint raw material into powder. The ground paint powder is stored in the crushing box 11. At the same time as crushing the paint raw material, the exhaust fan 2 is started. Through the cooperation of the first pipe 21 and the second pipe 22, air is drawn from the feed hopper 23, and the dust from the crushing rollers 13 is drawn into the filter box 18 along the feed hopper 23 and the second pipe 22. The dust drawn into the filter box is filtered by the first filter screen 24. The dust filtration within the filter box 18 ensures that paint powder that is of acceptable size but accidentally drawn into the filter box remains on the first filter screen 24. The remaining dust passes through the first filter screen 24 and is then filtered by the second filter screen 25, leaving the dust on the second filter screen 25. Excess air is discharged from the filter box 18 through the first pipe 21. After the crushing operation has been running for a period of time, the feeding of paint raw materials is stopped, and the filter box 18 is moved downward by the hydraulic cylinder 27, aligning the first channel 3 with the second channel 31. At this time, the paint powder remaining on the first filter screen 24 falls onto the guide plate 32 along the first channel 3 and the second channel 31. Guided by the guide plate 32, the paint powder enters the crushing box 11 along the guide plate 32 and the third channel 33, thus allowing the accidentally drawn paint powder to be recycled and avoiding waste.
[0021] Specifically, one end of one of the rotating shafts 12 passes through the crushing bin 11 and is fixedly connected to a turntable 34. Two protrusions 35 are symmetrically fixedly connected to the outer wall of the turntable 34. The outer wall of the protrusions 35 is set as a symmetrical inclined surface. Two top plates 36 are symmetrically fixedly connected to the outer wall of the support plate 28. The protrusions 35 and the top plates 36 are used in conjunction. A reset assembly is provided inside the base 1. The reset assembly includes a sliding shaft 37, which is fixedly installed inside the base 1. A slider 38 is slidably connected to the outer wall of the sliding shaft 37. The slider 38 is fixedly connected to the slide plate 17. A spring 39 is sleeved on the outer wall of the sliding shaft 37.
[0022] Through the above technical solution, the rotating shaft 12 drives the rotating disk 34 to rotate, causing the protrusion 35 to rotate. When the protrusion 35 rotates to the top plate 36, under the pressure of the inclined surface of the protrusion 35, it pushes the top plate 36 to one side, drives the support plate 28 to one side, causes the filter box 18 to move to one side, drives the slider 38 to move to one side, and compresses the spring 39. When the protrusion 35 rotates to a position away from the top plate 36, under the action of the spring 39, the slider 38 moves back and vibrates, driving the filter box 18 to move back and vibrate. This process repeats, and while the rotating shaft 12 rotates, it drives the filter box 18 to vibrate continuously, preventing the first filter screen 24 and the second filter screen 25 from being blocked and affecting the filtration effect.
[0023] Specifically, a discharge valve 26 is provided on the outer wall of the filter box 18 above the second filter screen 25, and a drawer 19 is slidably connected to the inner wall of the crushed material box 11 below the third through groove 33.
[0024] Through the above technical solution, the dust remaining on the second filter screen 25 can be removed by the discharge valve 26, and the paint powder in the waste bin 11 can be removed by removing the drawer 19.
[0025] Specifically, the outer wall of the crushing bin 11 is equipped with a control panel 16, and the motor 15, the exhaust fan 2, and the hydraulic cylinder 27 are all electrically connected to the control panel 16.
[0026] Through the above technical solution, the start and stop of the motor 15, the exhaust fan 2, and the hydraulic cylinder 27 can be controlled through the control panel 16.
[0027] In use, the filter box 18 is moved upward by the hydraulic cylinder 27, causing the first through groove 3 and the second through groove 31 to be misaligned. The first through groove 3 is blocked by the support plate 28. The motor 15 is started, driving one of the rotating shafts 12 to rotate. Through the cooperation of the three gears 14, the three rotating shafts 12 rotate simultaneously, driving the three crushing rollers 13 to rotate simultaneously. The paint raw material is put into the crushing box 11, and the rotating crushing rollers 13 crush the paint raw material into powder. The crushed paint powder is stored in the crushing box 11. While crushing the paint raw material, the exhaust fan 2 is started, and the exhaust is connected to the first pipe 21 and the second pipe 22. The combination of 2 and 3 causes air to be drawn from the feed hopper 23, drawing dust from the crushing roller 13 along the feed hopper 23 and the second pipe 22 into the filter box 18. The dust is filtered through the first filter screen 24, leaving any paint powder that is of acceptable size but accidentally drawn into the filter box 18 on the first filter screen 24. The remaining dust passes through the first filter screen 24 and is then filtered through the second filter screen 25, leaving the dust on the second filter screen 25. Excess air is discharged from the filter box 18 through the first pipe 21. After the crushing operation has been running for a period of time, the feeding of paint raw materials is stopped, controlled by the hydraulic cylinder 27. The filter box 18 moves downward, aligning the first channel 3 with the second channel 31. At this time, the paint powder remaining on the first filter screen 24 falls onto the guide plate 32 along the first channel 3 and the second channel 31. Guided by the guide plate 32, the paint powder enters the waste bin 11 along the guide plate 32 and the third channel 33, thus allowing the accidentally removed paint powder to be recycled and avoiding waste. While the rotating shaft 12 rotates, it drives the turntable 34 to rotate, causing the protrusion 35 to rotate. When the protrusion 35 rotates to the top plate 36, the pressure from the inclined surface of the protrusion 35 pushes the top plate 36 to one side, driving the support plate 2. Move 8 to one side, causing the filter box 18 to move to one side, which in turn moves the slider 38 to one side, compressing the spring 39. When the protrusion 35 rotates to a position away from the top plate 36, the slider 38 moves back and vibrates under the action of the spring 39, causing the filter box 18 to move back and vibrate. This process repeats, causing the filter box 18 to vibrate continuously while the rotating shaft 12 rotates, thus preventing the first filter screen 24 and the second filter screen 25 from being blocked and affecting the filtration effect. The dust left on the second filter screen 25 can be removed through the discharge valve 26, and the paint powder in the waste bin 11 can be removed by removing the drawer 19.
[0028] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.
[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.
[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An integrated equipment for dust suppression and raw material recycling in powder coating processing, characterized in that, Includes a base (1), the top of which is fixedly connected to a shredder (11), the inner wall of which is equidistantly connected to three rotating shafts (12), the outer walls of which are fixedly connected to shredder rollers (13), and the outer walls of which are fixedly connected to gears (14), which mesh with each other. The outer wall of which is fixedly connected to a motor (15), the output end of which extends into the interior of the shredder (11) and is fixedly connected to one of the rotating shafts (12). The top of which is slidably connected to a slide plate (17), the top of which is fixedly connected to a support plate (28), and the outer wall of which is slidably connected to a filter box (18). A blower (2) is fixedly connected to the bottom of the filter box (18). The output end of the blower (2) is connected to a first pipe (21). One end of the first pipe (21) extends into the interior of the filter box (18). A second pipe (22) is fixedly connected to the top of the filter box (18). One end of the second pipe (22) extends above the crushed material box (11) and is fixedly connected to a feed hopper (23). A first filter screen (24) is fixedly connected to the inner wall of the filter box (18). A second filter screen (25) is fixedly connected to the inner wall of the filter box (18) and below the first filter screen (24). The mesh size of the first filter screen (24) is larger than that of the second filter screen (25). Both the first filter screen (24) and the second filter screen (25) are installed at an angle. A circulation component is provided on the top of the slide plate (17).
2. The integrated dust suppression and raw material recycling equipment for powder coating processing according to claim 1, characterized in that, The circulation assembly includes a hydraulic cylinder (27), which is fixedly installed on the top of the slide plate (17). The output end of the hydraulic cylinder (27) is fixedly connected to the filter box (18). A first through groove (3) is provided on the outer wall of the filter box (18) above the first filter screen (24). A second through groove (31) is provided inside the support plate (28). A third through groove (33) is provided on the outer wall of the crushing box (11).
3. The integrated equipment for dust suppression and raw material recycling in powder coating processing according to claim 2, characterized in that, A guide plate (32) is fixedly connected to the outer wall of the support plate (28) and below the second through groove (31). One side of the guide plate (32) extends into the interior of the third through groove (33). The guide plate (32) is installed at an angle.
4. The integrated dust suppression and raw material recycling equipment for powder coating processing according to claim 3, characterized in that, One end of one of the rotating shafts (12) passes through the crushing bin (11) and is fixedly connected to a turntable (34). Two protrusions (35) are symmetrically fixedly connected to the outer wall of the turntable (34). The outer wall of the protrusions (35) is set as a symmetrical inclined surface. Two top plates (36) are symmetrically fixedly connected to the outer wall of the support plate (28). The protrusions (35) and the top plates (36) are used in conjunction. A reset component is provided inside the base (1).
5. The integrated dust suppression and raw material recycling equipment for powder coating processing according to claim 4, characterized in that, The reset assembly includes a slide shaft (37), which is fixedly installed inside the base (1). A slider (38) is slidably connected to the outer wall of the slide shaft (37). The slider (38) is fixedly connected to the slide plate (17). A spring (39) is sleeved on the outer wall of the slide shaft (37).
6. The integrated dust suppression and raw material recycling equipment for powder coating processing according to claim 3, characterized in that, A discharge valve (26) is provided on the outer wall of the filter box (18) and above the second filter screen (25), and a drawer (19) is slidably connected to the inner wall of the crushed material box (11) and below the third through groove (33).
7. The integrated equipment for dust suppression and raw material recycling in powder coating processing according to claim 2, characterized in that, The outer wall of the crushing bin (11) is provided with a control panel (16), and the motor (15), the exhaust fan (2), and the hydraulic cylinder (27) are all electrically connected to the control panel (16).