Drying device for thermosetting powder coating production
By adding a stirring box and discharge chute in the middle of the thermosetting powder coating drying assembly line, two rounds of drying are achieved, solving the problems of low drying efficiency and uneven drying of existing equipment, and significantly improving the drying efficiency and effect.
Patent Information
- Application Number
- CN202421733959.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-22
AI Technical Summary
The existing thermosetting powder coating drying equipment has low drying efficiency, which can easily lead to surface drying but still have slab bonds or moisture at the bottom, so the drying effect needs to be optimized.
A drying device is designed. By adding a tumbling box in the middle of the drying assembly line, the powder enters the tumbling box after the first round of drying, and then it is laid on the belt of the second round of drying device through the discharge chute to continue drying, achieving two rounds of drying.
The device significantly improves the drying efficiency by dividing it into two drying stages, preventing the surface from drying but still having plate bonds or moisture at the bottom, and optimizing the drying effect.
Smart Images
Figure CN222912244U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of powder material processing equipment, in particular to a drying device used for the production of thermosetting powder coatings. Background Art
[0002] Thermosetting powder is a powdered coating that can harden on the surface of an object when heated. The main material is resin. It can give the coated object additional beneficial properties such as additional physical impact protection and corrosion resistance. It is widely used in construction, material production, home decoration and other fields. It is an environmentally friendly surface coating material.
[0003] In the production process of thermosetting powder coatings, in order to ensure the quality and dryness of the powder products after mixing and synthesis, a drying process must be carried out to ensure that they are basically dehydrated and dried. The existing thermosetting powder coating drying equipment basically dries flat throughout the entire process, and the drying efficiency is low. It is easy to cause the surface to be dry but there is still compaction or moisture on the bottom. There is still room for improvement in the drying effect.
[0004] In order to solve the above problems, we have made improvements and proposed a drying device for the production of thermosetting powder coatings. Utility Model Content
[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:
[0006] The utility model provides a drying device for the production of thermosetting powder coatings, comprising a first drying device, a transmission pipe being butt-jointed at the right end of the first drying device, a tumbling box being butt-jointed below the right end of the transmission pipe, a discharging chute being fixedly welded at the bottom of the tumbling box, a second drying device being arranged below the tumbling box, the left end of the second drying device being located below the discharging chute, the first drying device and the second drying device having exactly the same structure, feet being fixedly mounted on the bottom surfaces of the first drying device and the second drying device, and the height of the feet of the first drying device being greater than that of the second drying device.
[0007] As a preferred technical solution of the utility model, the first drying device includes a drying box, on the top of which hot air ducts are fixedly installed at equal intervals, the hot air ducts pass through the top surface of the drying box and extend into the interior of the drying box, side panels are fixedly welded to the bottom of the front and rear ends of the drying box, and a reduction box and a first motor are fixedly installed on the left end of the front side panel by bolts.
[0008] As a preferred technical solution of the utility model, transmission rollers are rotatably installed at the left and right ends between the two side plates, the rotating shaft of the first motor is connected to the transmission roller at the left end of the side plate through a gear set, the surfaces of the two transmission rollers are sleeved with conveyor belts, and a pad is fixedly welded at the top of the middle part between the two side plates, and the top surface of the pad is in contact with the top surface inside the conveyor belt.
[0009] As a preferred technical solution of the utility model, a side baffle is fixedly welded to the right side of the two side plates of the first drying device, an input bucket is arranged below the side baffle, the bottom of the side baffle extends into the top of the input bucket, a bracket is welded to the outer surface of the input bucket, and the bottom of the input bucket is welded to the inner top surface of the left end of the transmission pipe.
[0010] As a preferred technical solution of the utility model, a spiral rod is rotatably arranged inside the transmission tube, a second motor is fixedly installed on the top surface of the outer right end of the transmission tube by bolts, the spiral rod is coaxially fixedly connected with the rotating shaft of the second motor, an output bucket is fixedly welded to the bottom surface of the right end of the transmission tube, and the bottom of the output bucket is fixedly welded to the top interior of the stirring box.
[0011] As a preferred technical solution of the utility model, a third motor is fixedly installed with bolts at the right center of the outer surface of the tumbling box, and a tumbling fan is rotatably installed at the inner center of the tumbling box. The central axis of the tumbling fan is coaxially fixedly connected with the rotating shaft of the third motor, and the edge of the fan blades of the tumbling fan is close to the inner wall of the tumbling box.
[0012] As a preferred technical solution of the utility model, the width of the top of the left end of the discharge chute is smaller than the width of the bottom of the right end, and leveling scraper plates are fixedly welded on the top and bottom of the inner wall of the discharge chute, and the bottom of the leveling scraper plates is close to the bottom surface of the inner wall of the discharge chute.
[0013] The beneficial effects of the utility model are as follows: the drying device for the production of thermosetting powder coatings adopts the existing hot air drying device to dry the thermosetting powder, and adds a connecting powder stirring structure in the middle position of the drying line, so that the powder drying can be divided into two stages on the basis of the existing hot air drying equipment. After the first round of drying, the powder can be stirred again inside the stirring box to break up the powder, and then laid on the belt of the next round of drying device for drying through the discharging chute, which can greatly improve the drying efficiency, prevent the situation where the surface is dried but there is still compaction or moisture on the bottom due to the whole process of flat laying, and optimize the drying effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0015] Figure 1 This is a schematic diagram of the structure of a drying device for producing thermosetting powder coatings according to the utility model;
[0016] Figure 2 This is a schematic cross-sectional structure diagram of a first drying device of a drying device for producing thermosetting powder coatings of the utility model;
[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of a transmission pipe of a drying device for producing thermosetting powder coatings according to the utility model;
[0018] Figure 4 This is a schematic diagram of the right side cross-sectional structure of a tumbling box of a drying device for producing thermosetting powder coatings according to the utility model;
[0019] In the figure: 1. first drying device; 2. transmission pipe; 3. stirring box; 4. second drying device; 5. first motor; 6. transmission roller; 7. transmission belt; 8. pad; 9. drying box; 10. hot air duct; 11. side baffle; 12. input bucket; 13. screw rod; 14. second motor; 15. output bucket; 16. third motor; 17. stirring fan; 18. discharge chute; 19. leveling scraper. DETAILED DESCRIPTION
[0020] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.
[0021] Example: Figure 1-4 As shown, a drying device for the production of thermosetting powder coatings comprises a first drying device 1, a transmission pipe 2 is butt-jointed at the right end of the first drying device 1, a tumbling box 3 is butt-jointed below the right end of the transmission pipe 2, a discharging chute 18 is fixedly welded at the bottom of the tumbling box 3, a second drying device 4 is arranged below the tumbling box 3, and the left end of the second drying device 4 is located below the discharging chute 18. Thermosetting powder is input from the first drying device 1 and starts to be dried. In the middle, it is lifted and transported to the tumbling box 3 through the transmission pipe 2, and after tumbling, it is input into the second drying device 4 for further drying. The structures of the first drying device 1 and the second drying device 4 are exactly the same. The bottom surfaces of the first drying device 1 and the second drying device 4 are both fixedly mounted with feet, and the height of the feet of the first drying device 1 is greater than that of the second drying device 4.
[0022] The first drying device 1 includes a drying box 9, on the top of which hot air ducts 10 are fixedly installed at equal intervals. The hot air ducts 10 pass through the top surface of the drying box 9 and extend into the interior of the drying box 9, so that hot air is continuously input into the drying box 9 to dry the powder. Side panels are fixedly welded to the bottom of the front and rear ends of the drying box 9, and a reduction box and a first motor 5 are fixedly installed on the left end of the front side panel by bolts.
[0023] Transmission rollers 6 are rotatably installed at the left and right ends between the two side plates. The rotating shaft of the first motor 5 is connected to the transmission roller 6 at the left end of the side plate through a gear set. A conveyor belt 7 is sleeved on the surface of the two transmission rollers 6. A pad 8 is fixedly welded on the top of the middle part between the two side plates. The top surface of the pad 8 is in contact with the top surface inside the conveyor belt 7. The top surface of the conveyor belt 7 holds the spread powder. The first motor 5 drives the transmission roller 6 to rotate, thereby driving the conveyor belt 7 to move continuously, and the powder is transported through the drying box 9 for drying.
[0024] A side baffle 11 is fixedly welded to the right side of the two side plates of the first drying device 1, an input hopper 12 is arranged below the side baffle 11, the bottom of the side baffle 11 extends into the top of the input hopper 12, a bracket is welded on the outer surface of the input hopper 12, the bottom of the input hopper 12 is welded and connected to the top surface of the left end of the transmission pipe 2, and the powder after the first round of drying enters the transmission pipe 2 through the input hopper 12.
[0025] A spiral rod 13 is rotatably arranged inside the transmission tube 2, and a second motor 14 is fixedly installed on the top surface of the outer right end of the transmission tube 2 by bolts. The spiral rod 13 is coaxially fixedly connected with the rotating shaft of the second motor 14, and an output bucket 15 is fixedly welded to the bottom surface of the right end of the transmission tube 2. The bottom of the output bucket 15 is fixedly welded to the top of the stirring box 3. The second motor 14 drives the spiral rod 13 to rotate, lifts the powder and discharges it into the stirring box 3 through the output bucket 15.
[0026] A third motor 16 is fixedly installed at the center of the right side of the outer surface of the stirring box 3 by bolts, and a stirring fan 17 is rotatably installed at the inner center of the stirring box 3. The central axis of the stirring fan 17 is coaxially fixedly connected with the rotating shaft of the third motor 16, and the edge of the fan blade of the stirring fan 17 is close to the inner wall of the stirring box 3. The third motor 16 drives the stirring fan 17 to rotate continuously, and continuously stirs the powder entering the stirring box 3, and the powder will be discharged from the bottom of the stirring box 3 into the discharge chute 18.
[0027] The width of the top of the left end of the discharge chute 18 is smaller than the width of the bottom of the right end. Leveling scraper plates 19 are fixedly welded to the top and bottom of the inner wall of the discharge chute 18. The bottom of the leveling scraper plates 19 is close to the bottom surface of the inner wall of the discharge chute 18. When sliding down, it passes through the gap between the two leveling scraper plates 19 and the discharge chute 18, thereby increasing and leveling the powder laying surface, and finally falls into the second drying device 4 to start the second round of drying.
[0028] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A drying device for producing thermosetting powder coatings, comprising a first drying device (1), characterized in that: The right end of the first drying device (1) is butt-jointed with a transmission pipe (2), and a stirring box (3) is butt-jointed below the right end of the transmission pipe (2). A discharge chute (18) is fixedly welded to the bottom of the stirring box (3), and a second drying device (4) is arranged below the stirring box (3). The left end of the second drying device (4) is located below the discharge chute (18). The structures of the first drying device (1) and the second drying device (4) are completely the same. The bottom surfaces of the first drying device (1) and the second drying device (4) are both fixedly mounted with feet, and the height of the feet of the first drying device (1) is greater than that of the second drying device (4).
2. A drying device for thermosetting powder coating production according to claim 1, characterized in that: The first drying device (1) comprises a drying box (9), hot air ducts (10) are fixedly installed at equal intervals on the top of the drying box (9), the hot air ducts (10) pass through the top surface of the drying box (9) and extend into the interior of the drying box (9), side panels are fixedly welded to the bottom of the front and rear ends of the drying box (9), and a reduction box and a first motor (5) are fixedly installed on the left end of the front side panel by bolts.
3. A drying device for thermosetting powder coating production according to claim 2, characterized in that: The left and right ends between the two side plates are both rotatably mounted with transmission rollers (6); the rotating shaft of the first motor (5) is transmission-connected to the transmission roller (6) at the left end of the side plate through a gear set; the surfaces of the two transmission rollers (6) are sleeved with a transmission belt (7); a pad (8) is fixedly welded at the top of the middle part between the two side plates; the top surface of the pad (8) contacts the top surface of the inside of the transmission belt (7).
4. A drying device for thermosetting powder coating production according to claim 3, characterized in that: A side baffle (11) is fixedly welded to the right side of the two side plates of the first drying device (1), an input hopper (12) is arranged below the side baffle (11), the bottom of the side baffle (11) extends into the top of the input hopper (12), a bracket is welded to the outer surface of the input hopper (12), and the bottom of the input hopper (12) is welded to the top surface of the left end of the inner part of the transmission pipe (2).
5. A drying device for thermosetting powder coating production according to claim 1, characterized in that: A spiral rod (13) is rotatably arranged inside the transmission tube (2); a second motor (14) is fixedly mounted on the top surface of the outer right end of the transmission tube (2) by means of bolts; the spiral rod (13) is coaxially fixedly connected to the rotating shaft of the second motor (14); an output bucket (15) is fixedly welded to the bottom surface of the right end of the transmission tube (2); and the bottom of the output bucket (15) is fixedly welded to the top of the stirring box (3).
6. A drying device for thermosetting powder coating production according to claim 1, characterized in that: A third motor (16) is fixedly mounted at the right center of the outer surface of the stirring box (3) by means of bolts, and a stirring fan (17) is rotatably mounted at the inner center of the stirring box (3), the central axis of the stirring fan (17) is coaxially fixedly connected to the rotating shaft of the third motor (16), and the blade edge of the stirring fan (17) is close to the inner wall of the stirring box (3).
7. A drying device for thermosetting powder coating production according to claim 1, characterized in that: The width of the top of the left end of the discharging chute (18) is smaller than the width of the bottom of the right end thereof, and a leveling scraper plate (19) is fixedly welded to the top and bottom of the inner wall of the discharging chute (18), and the bottom of the leveling scraper plate (19) is close to the bottom surface of the inner wall of the discharging chute (18).