A drying equipment for producing powder coatings

Abstract

This utility model discloses a drying equipment for producing powder coatings, relating to the field of powder coating production technology. It includes a drying tank and an mounting shaft. An insulation box is fixedly installed on the outside of the drying tank, and a second heater is installed inside the insulation box. The mounting shaft is located inside the drying tank. A crushing mechanism is connected to the upper end of the drying tank, and a circulation mechanism is installed inside the drying tank. A cleaning mechanism is installed at the bottom end of the rotating tube. This utility model, by setting up a crushing mechanism, allows the female and male grinding heads to work together to crush agglomerated powder coatings, thereby increasing the drying effect. The circulation mechanism circulates and transports the powder coatings at the bottom of the drying tank. Furthermore, the drying tank interior, combined with a vortex plate, forms a vortex channel, and the first heater heats the gas delivered by the fan, thus enabling uniform circulation and drying of the powder coatings that have fallen to the top of the drying tank, thereby increasing the practicality of the drying equipment.

Description

Technical Field

[0001] This utility model relates to the field of powder coating production technology, specifically a drying equipment for producing powder coatings. Background Technology

[0002] Powder coatings, unlike traditional liquid coatings, are in the form of fine powders, offering significant advantages such as being solvent-free, pollution-free, recyclable, environmentally friendly, energy-saving, reducing labor intensity, and producing high mechanical strength coating films. Drying is crucial in the final stage of the production process. However, existing drying equipment typically involves directly pouring the powder coating into the drying chamber, resulting in large amounts of powder accumulating into clumps. This accumulation severely hinders uniform heat conduction and effective air circulation, making it difficult for the powder at the core to dry synchronously with the surface powder, easily leading to uneven drying, such as insufficient internal heating or over-drying on the outside. This uneven drying not only directly affects the curing quality and performance stability of the powder coating but also adversely impacts subsequent screening, packaging, and application processes.

[0003] The existing patent announcement number, CN221724781U, discloses a drying device for producing powder coatings. Its innovation lies in the inclusion of a drive motor, a connecting rod, a stirring rod, and a stirring disc. This device attempts to improve drying uniformity by using the drive motor to rotate the connecting rod during the drying process, thereby driving the stirring rod and stirring disc to agitate the powder inside the drying chamber. Specifically, the stirring disc is designed to stir the powder at the bottom.

[0004] However, this design has significant shortcomings: First, the stirring disc is typically too short to effectively reach and agitate the powder in the central and larger areas of the drying chamber, leading to powder stratification during drying and unsatisfactory overall uniformity. Second, the powder tends to accumulate even under static or weak agitation, reducing the effective contact area with hot air, significantly prolonging heating time, and decreasing efficiency. More importantly, powder coatings often clump before drying due to moisture absorption or storage. This equipment lacks a mechanism to break up these clumps; even with agitation, they are difficult to completely disperse once they enter the drying chamber, severely impacting the final drying quality and powder flowability.

[0005] Based on this, a drying device for producing powder coatings is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0006] The purpose of this invention is to provide a drying device for producing powder coatings, so as to solve the problem of inconvenience in uniformly drying powder coatings in the prior art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A drying device for producing powder coatings includes a drying tank and a mounting shaft. A discharge pipe is connected to the bottom of the drying tank. An insulation box is fixed to the outside of the drying tank, and a second heater is provided inside the insulation box. The mounting shaft is located inside the drying tank, and a first support frame is rotatably mounted at one end of the mounting shaft. The first support frame is fixed inside the discharge pipe. The device is characterized in that a third spiral plate is fixed at a position corresponding to the inner side of the discharge pipe at one end of the mounting shaft. A rotating tube is rotatably mounted in a mounting hole at the upper end of the drying tank. A filter screen is installed at one end of the rotating tube. A second exhaust pipe is connected to the upper end of the rotating tube and is connected to the input end of an external gas treatment component. A crushing mechanism for breaking up agglomerated powder coatings is connected to the upper end of the drying tank. A circulation mechanism for circulating and drying the powder coatings is provided inside the drying tank, coaxial with the mounting shaft. A cleaning mechanism to prevent the filter screen from being clogged is provided at the bottom end of the rotating tube.

[0009] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0010] In one alternative: a baffle plate is attached to one end of the discharge pipe, the baffle plate is hinged to the end of the discharge pipe, a fixing ring is fixed to the bottom of the drying tank, and a number of support legs are arranged in an array at the bottom of the fixing ring.

[0011] In one alternative embodiment: the crushing mechanism includes a female grinding head and a male grinding head. The female grinding head is installed in a mounting hole at the upper end of the drying tank. A male grinding head is fitted inside the female grinding head. A second support frame is rotatably mounted at the bottom end of the male grinding head. The second support frame is fixedly mounted inside the female grinding head. A fixed shaft is fixedly mounted at the upper end of the male grinding head. The fixed shaft is fixedly connected to the output end of a first motor. The first motor is fixedly mounted at the upper end of a storage box. The storage box is fixedly mounted at the upper end of the female grinding head. A feeding pipe is connected to the storage box. A first spiral plate is fixedly mounted on the fixed shaft. The first spiral plate is in close contact with the interior of the female grinding head and the storage box. The first motor and the second heater are both electrically connected to a control component. The control component is fixedly mounted on an insulation box.

[0012] In one alternative embodiment: the circulation mechanism includes a transmission pipe, which is coaxially arranged with the mounting shaft. One end of the transmission pipe is rotatably provided with a third support frame, which is fixedly installed inside the drying tank. The other end of the transmission pipe is connected to a discharge box, which has several discharge ports at its bottom. A connecting shaft is fixedly provided at the top of the discharge box, extending to the outside of the drying tank. Several levers are arrayed on the mounting shaft at positions corresponding to the inside of the discharge box. Several stirring rods are arrayed on the outside of the transmission pipe. A drying assembly for drying powder coatings is provided inside the drying tank and below the discharge box.

[0013] In one alternative embodiment: the drying assembly includes a drying chamber, which is fixedly disposed inside a drying tank and positioned below a discharge box. The upper end of the drying chamber is conical. A vortex plate is fixedly disposed inside the drying chamber, forming a vortex channel with the vortex plate. A first heater is fixedly disposed inside the vortex channel and electrically connected to a control component. An air inlet pipe and a first exhaust pipe are connected within the vortex channel. One end of the air inlet pipe is connected to the output end of a fan. The fan is fixedly disposed on the upper end of a fixed plate, which is fixedly disposed on an insulation box. One end of the first exhaust pipe extends to the outside of the insulation box.

[0014] In one alternative: a first bevel gear and a second bevel gear are fixedly mounted at one end of the mounting shaft and the sleeve shaft, respectively. Both the first bevel gear and the second bevel gear mesh with a third bevel gear. The third bevel gear is fixedly mounted at the output end of the second motor. The second motor is fixedly mounted at the upper end of the drying tank. The second motor is electrically connected to the control component.

[0015] In one alternative: a rotating tube is rotatably installed in the mounting hole at the upper end of the drying tank, a filter screen is installed at one end of the rotating tube, and a second exhaust pipe is connected to the upper end of the rotating tube, which is connected to the input end of an external gas treatment component.

[0016] In one alternative: the cleaning mechanism includes a brush plate, the bottom end of the filter screen is closely attached to the brush plate, the brush plate is fixedly mounted on the discharge box, a driven wheel is fixedly mounted on the second exhaust pipe, the driven wheel is connected to the driving wheel via a belt, the driving wheel is fixedly mounted on the sleeve shaft, and an air guide fan is fixedly mounted inside the rotating pipe.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This invention incorporates a crushing mechanism, allowing the female and male grinding heads to break up any clumps of powder coating before it is added to the drying chamber, thereby improving the drying effect. A circulation mechanism circulates the powder coating at the bottom of the drying chamber, and the interior of the drying chamber, combined with a vortex plate, forms a vortex channel. A first heater heats the gas supplied by the fan, ensuring uniform circulation and drying of the powder coating that falls to the top of the drying chamber. This enhances the practicality of the drying equipment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the internal structure of the drying tank of this utility model.

[0021] Figure 3 This is a schematic diagram of the installation of the second spiral plate of this utility model.

[0022] Figure 4 This is a schematic diagram of the female grinding head and male grinding head of this utility model.

[0023] Figure 5 This is a schematic diagram of the installation of the vortex plate and the first heater of this utility model.

[0024] Figure 6 This is a schematic diagram of the internal structure of the drying oven of this utility model.

[0025] Figure reference numerals: 11 Drying tank, 12 Discharge pipe, 13 Baffle plate, 14 Female grinding head, 15 Male grinding head, 16 Storage box, 17 First spiral plate, 18 First motor, 19 Mounting shaft, 20 Transmission pipe, 21 Second spiral plate, 22 Third spiral plate, 23 Discharge box, 24 Baffle plate, 25 Second motor, 26 Drying box, 27 Scroll plate, 28 First heater, 29 First exhaust pipe, 30 Fan, 31 Rotating pipe, 32 Filter screen, 33 Air guide fan, 34 Second exhaust pipe, 35 Brush plate, 36 Second heater, 37 Insulation box, 38 Control components. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0027] Example 1

[0028] In one embodiment, such as Figures 1-6 As shown, a drying device for producing powder coatings includes a drying tank 11 and a mounting shaft 19. The bottom of the drying tank 11 is connected to a discharge pipe 12. An insulation box 37 is fixedly installed on the outside of the drying tank 11, and a second heater 36 is installed inside the insulation box 37. The mounting shaft 19 is located inside the drying tank 11. A first support frame is rotatably provided at one end of the mounting shaft 19, and the first support frame is fixed inside the discharge pipe 12. A third spiral plate 22 is fixed at one end of the mounting shaft 19 at a position corresponding to the inside of the discharge pipe 12. A crushing mechanism for crushing agglomerated powder coatings is connected to the upper end of the drying tank 11. A circulation mechanism for circulating and drying the powder coatings is provided inside the drying tank 11 at a position coaxial with the mounting shaft 19. The crushing mechanism facilitates the screening and crushing of the powder coatings before they are added to the drying tank 11, and the circulation mechanism facilitates the conveying of the powder coatings at the bottom of the drying tank 11, thereby preventing the powder coatings from stratifying.

[0029] One end of the discharge pipe 12 is tightly fitted with a baffle plate 13, which is hinged to the end of the discharge pipe 12. The bottom of the drying tank 11 is fixed with a fixing ring, and the bottom of the fixing ring is arranged with several support legs. In use, when it is necessary to discharge the dried powder coating inside the drying tank 11, the baffle plate 13 is rotated to release the seal on one end of the discharge pipe 12, and the mounting shaft 19 is rotated in the opposite direction, thereby discharging the powder coating inside the drying tank 11.

[0030] The crushing mechanism includes a female grinding head 14 and a male grinding head 15. The female grinding head 14 is installed in the mounting hole at the upper end of the drying tank 11. The male grinding head 15 is fitted inside the female grinding head 14. A second support frame is rotatably mounted at the bottom end of the male grinding head 15, and the second support frame is fixedly mounted inside the female grinding head 14. A fixed shaft is fixedly mounted at the upper end of the male grinding head 15. The fixed shaft is fixedly connected to the output end of a first motor 18. The first motor 18 is fixedly mounted at the upper end of a storage tank 16. The storage tank 16 is fixedly mounted at the upper end of the female grinding head 14. A feeding pipe is connected to the storage tank 16. A first spiral plate 17 is fixedly mounted on the fixed shaft. The first spiral plate 17 is in close contact with the interior of the female grinding head 14 and the storage tank 16. The first motor 18 and the second heater 36 are both electrically connected to a control component 38. Component 38 is fixedly mounted on the insulation box 37. When it is needed to dry the powder coating, the powder coating to be dried is added to the storage box 16 through the external feeding component. Then, the first motor 18 and the second heater 36 are started by the control component 38. The output end of the first motor 18 drives the fixed shaft to rotate. The fixed shaft drives the first spiral plate 17 and the male grinding head 15 to rotate. The first spiral plate 17 pushes the powder coating inside the storage box 16 into the female grinding head 14. Then, the crushing blades on the outside of the male grinding head 15 and inside the female grinding head 14 can crush the agglomerated powder coating. The unagglomerated powder coating falls into the drying tank 11 through the gap between the female grinding head 14 and the male grinding head 15. At the same time, the second heater 36 heats the air inside the insulation box 37, thereby heating the powder coating inside the drying tank 11.

[0031] The circulation mechanism includes a transmission pipe 20, which is coaxially arranged with the mounting shaft 19. One end of the transmission pipe 20 is rotatably provided with a third support frame, which is fixedly installed inside the drying tank 11. The other end of the transmission pipe 20 is connected to a discharge box 23. The bottom end of the discharge box 23 is provided with several discharge ports. The upper end of the discharge box 23 is fixedly provided with a sleeve shaft, which extends to the outside of the drying tank 11. Several levers 24 are arranged in an array on the mounting shaft 19 at positions corresponding to the inside of the discharge box 23. Several stirring rods are arranged in an array on the outside of the transmission pipe 20. A drying component for drying powder coating is provided inside the drying tank 11 and below the discharge box 23.

[0032] The drying assembly includes a drying chamber 26, which is fixedly installed inside the drying tank 11. The drying chamber 26 is located below the discharge box 23. The upper end of the drying chamber 26 is conical. A vortex plate 27 is fixedly installed inside the drying chamber 26. The interior of the drying chamber 26 and the vortex plate 27 form a vortex channel. A first heater 28 is fixedly installed inside the vortex channel. The first heater 28 is electrically connected to the control component 38. An air inlet pipe and a first exhaust pipe 29 are connected in the vortex channel. One end of the air inlet pipe is connected to the output end of the fan 30. The fan 30 is fixedly installed on the upper end of a fixed plate. The fixed plate is fixedly installed on the insulation box 37. One end of the first exhaust pipe 29 extends to the outside of the insulation box 37.

[0033] The mounting shaft 19 and the sleeve shaft are respectively fixed with a first bevel gear and a second bevel gear. Both the first and second bevel gears mesh with a third bevel gear. The third bevel gear is fixed at the output end of the second motor 25. The second motor 25 is fixed at the upper end of the drying tank 11 and is electrically connected to the control component 38. In use, when it is necessary to dry the powder coating inside the drying tank 11, the control component 38 starts the second motor 25, the fan 30, the first heater 28, and the second heater 36. Then, the output end of the second motor 25 drives the third bevel gear to rotate. The third bevel gear meshes with the first and second bevel gears, so that the first and second bevel gears drive the mounting shaft 19 and the sleeve shaft to rotate respectively. The sleeve shaft drives the discharge box 23 and the transmission pipe 20 to rotate. The mounting shaft 19 drives the second spiral plate 21 to rotate, so that the transmission pipe 20 meshes with the second spiral plate 21. The rotating plate 21, in conjunction with the drying tank 11, transports the powder coating from the bottom to the discharge box 23. Simultaneously, the mounting shaft 19 drives several paddles 24 to rotate, which in turn move the powder coating, discharging it through the discharge port at the bottom of the discharge box 23. The powder coating falls onto the upper part of the drying chamber 26. Since the upper part of the drying chamber 26 is conical, the powder coating falls back into the drying tank 11 through the upper part of the drying chamber 26. At the same time, the first heater 28 and the fan 30 are activated. The fan 30 delivers gas into the vortex channel, while the first heater 28 heats the gas, allowing the hot air to exchange heat with the drying chamber 26, thereby drying the powder coating on the upper part of the drying chamber 26. Subsequently, the hot air is discharged through the first exhaust pipe 29. It is worth noting that the first heater 28 and the second heater 36 both use existing components, and their specific structures, principles, and control methods are well known and will not be described in detail here.

[0034] A rotating tube 31 is rotatably installed in the mounting hole at the upper end of the drying tank 11. A filter screen 32 is installed at one end of the rotating tube 31. A second exhaust pipe 34 is connected to the upper end of the rotating tube 31. The second exhaust pipe 34 is connected to the input end of the external gas treatment component. When the drying box 26 dries the powder coating, the generated water vapor is discharged through the second exhaust pipe 34. At the same time, the filter screen 32 can filter the powder coating.

[0035] Example 2

[0036] The difference from Embodiment 1 is that: an air guide fan 33 is fixedly installed inside the rotating tube 31, a brush plate 35 is tightly attached to the bottom end of the filter screen 32, the brush plate 35 is fixedly installed on the discharge box 23, a driven wheel is fixedly installed on the second exhaust pipe 34, the driven wheel is connected to the driving wheel through a belt, and the driving wheel is fixedly installed on the sleeve shaft. In use, when the second motor 25 drives the sleeve shaft to rotate, the sleeve shaft drives the second exhaust pipe 34 and the rotating tube 31 to rotate through the belt. Under the action of the air guide fan 33, the discharge of water vapor inside the drying tank 11 is accelerated, and the brush plate 35 is driven to rotate when the discharge box 23 rotates. When the brush plate 35 is tightly attached to the bottom end of the filter screen 32, the brush plate 35 cleans the powder coating at the bottom end of the filter screen 32 with the brush bristles.

[0037] The above embodiment discloses a drying equipment for producing powder coatings. When drying the powder coating, the powder coating to be dried is added to the storage tank 16 through an external feeding component. Then, the first motor 18 and the second heater 36 are started by the control component 38. The output end of the first motor 18 drives the fixed shaft to rotate, and the fixed shaft drives the first spiral plate 17 and the male grinding head 15 to rotate. The first spiral plate 17 pushes the powder coating inside the storage tank 16 into the female grinding head 14. Then, the crushing blades on the outside of the male grinding head 15 and inside the female grinding head 14 can crush the agglomerated powder coating. The unagglomerated powder coating falls into the drying tank 11 through the gap between the female grinding head 14 and the male grinding head 15. At the same time, the second heater 36 heats the air inside the heat preservation box 37, thereby heating the powder coating inside the drying tank 11.

[0038] Simultaneously, the second motor 25, fan 30, first heater 28, and second heater 36 are started via control component 38. Then, the output of the second motor 25 drives the third bevel gear to rotate. The third bevel gear meshes with the first and second bevel gears, causing the first and second bevel gears to drive the mounting shaft 19 and the sleeve shaft to rotate respectively. The sleeve shaft drives the discharge box 23 and the transmission pipe 20 to rotate. The mounting shaft 19 drives the second spiral plate 21 to rotate, causing the transmission pipe 20 to cooperate with the second spiral plate 21 to transport the powder coating from the bottom of the drying tank 11 to the discharge box 23. At the same time, the mounting shaft 19 drives several... The lever 24 rotates, causing the powder coating to be discharged through the discharge port at the bottom of the discharge box 23. The powder coating falls onto the upper part of the drying box 26. Since the upper part of the drying box 26 is conical, the powder coating falls back into the drying tank 11 through the upper part of the drying box 26. At the same time, the first heater 28 and the fan 30 are started. The fan 30 delivers gas into the vortex channel, and the first heater 28 heats the gas, so that the hot air exchanges heat with the drying box 26, thereby drying the powder coating at the upper part of the drying box 26. Then the hot air is discharged through the first exhaust pipe 29.

[0039] At the same time, when the second motor 25 drives the sleeve shaft to rotate, the sleeve shaft drives the second exhaust pipe 34 and the rotating pipe 31 to rotate through the belt. Under the action of the air guide fan 33, the water vapor inside the drying tank 11 is accelerated to be discharged through the second exhaust pipe 34. When the discharge box 23 rotates, it drives the brush plate 35 to rotate. When the brush plate 35 is in close contact with the bottom end of the filter screen 32, the brush plate 35 cleans the powder coating at the bottom end of the filter screen 32 through the brush bristles.

[0040] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A drying device for producing powder coatings, comprising a drying tank (11) and a mounting shaft (19), wherein a discharge pipe (12) is connected to the bottom end of the drying tank (11), an insulation box (37) is fixedly provided on the outside of the drying tank (11), a second heater (36) is provided on the inside of the insulation box (37), the mounting shaft (19) is disposed inside the drying tank (11), and a first support frame is rotatably provided at one end of the mounting shaft (19), the first support frame being fixedly disposed inside the discharge pipe (12), characterized in that, A third spiral plate (22) is fixedly installed at one end of the mounting shaft (19) corresponding to the inner side of the discharge pipe (12). A rotating pipe (31) is rotatably installed in the mounting hole at the upper end of the drying tank (11). A filter screen (32) is installed at one end of the rotating pipe (31). A second exhaust pipe (34) is connected to the upper end of the rotating pipe (31). The second exhaust pipe (34) is connected to the input end of the external gas treatment component. A crushing mechanism for crushing agglomerated powder coating is connected to the upper end of the drying tank (11). A circulation mechanism for circulating drying of powder coating is provided inside the drying tank (11) at the coaxial position with the mounting shaft (19). A cleaning mechanism to prevent the filter screen (32) from being blocked is provided at the bottom end of the rotating pipe (31).

2. The drying equipment for producing powder coatings according to claim 1, characterized in that, One end of the discharge pipe (12) is closely attached to a baffle plate (13), which is hinged to the end of the discharge pipe (12). The bottom of the drying tank (11) is fixedly provided with a fixing ring, and the bottom of the fixing ring is provided with several support legs arranged in an array.

3. The drying equipment for producing powder coatings according to claim 1, characterized in that, The crushing mechanism includes a female grinding head (14) and a male grinding head (15). The female grinding head (14) is installed in the mounting hole at the upper end of the drying tank (11). The male grinding head (15) is fitted inside the female grinding head (14). A second support frame is rotatably provided at the bottom end of the male grinding head (15). The second support frame is fixedly installed inside the female grinding head (14). A fixed shaft is fixedly provided at the upper end of the male grinding head (15). The fixed shaft is fixedly connected to the output end of a first motor (18). The first spiral plate (17) is fixedly installed on the upper end of the storage box (16), the storage box (16) is fixedly installed on the upper end of the female grinding head (14), the storage box (16) is connected to the feeding pipe, the fixed shaft is fixedly installed on the first spiral plate (17), the first spiral plate (17) is in close contact with the inside of the female grinding head (14) and the storage box (16), the first motor (18) and the second heater (36) are both electrically connected to the control component (38), the control component (38) is fixedly installed on the heat preservation box (37).

4. A drying device for producing powder coatings according to claim 3, characterized in that, The circulation mechanism includes a transmission pipe (20), which is coaxially arranged with the mounting shaft (19). One end of the transmission pipe (20) is rotatably provided with a third support frame, which is fixedly installed inside the drying tank (11). The other end of the transmission pipe (20) is connected to a discharge box (23). The bottom end of the discharge box (23) is provided with several discharge ports. The upper end of the discharge box (23) is fixedly provided with a connecting shaft, which extends to the outside of the drying tank (11). Several levers (24) are arranged in an array on the mounting shaft (19) at positions corresponding to the inside of the discharge box (23). Several stirring rods are arranged in an array on the outside of the transmission pipe (20). A drying component for drying powder coating is provided inside the drying tank (11) and below the discharge box (23).

5. A drying device for producing powder coatings according to claim 4, characterized in that, The drying assembly includes a drying chamber (26), which is fixed inside the drying tank (11). The drying chamber (26) is located below the discharge box (23). The upper end of the drying chamber (26) is conical. A vortex plate (27) is fixed inside the drying chamber (26). The interior of the drying chamber (26) and the vortex plate (27) are combined to form a vortex channel. A first heater (28) is fixed inside the vortex channel. The first heater (28) is electrically connected to the control component (38). An air inlet pipe and a first exhaust pipe (29) are connected inside the vortex channel. One end of the air inlet pipe is connected to the output end of a fan (30). The fan (30) is fixed on the upper end of a fixed plate. The fixed plate is fixed on a heat preservation box (37). One end of the first exhaust pipe (29) extends to the outside of the heat preservation box (37).

6. A drying device for producing powder coatings according to claim 5, characterized in that, The mounting shaft (19) and the sleeve shaft are respectively fixed with a first bevel gear and a second bevel gear. The first bevel gear and the second bevel gear are both meshed with a third bevel gear. The third bevel gear is fixed at the output end of the second motor (25). The second motor (25) is fixed at the upper end of the drying tank (11). The second motor (25) is electrically connected to the control component (38).

7. A drying device for producing powder coatings according to claim 6, characterized in that, The cleaning mechanism includes a brush plate (35), the bottom end of the filter screen (32) is closely attached to the brush plate (35), the brush plate (35) is fixedly mounted on the discharge box (23), the driven wheel is fixedly mounted on the second exhaust pipe (34), the driven wheel is connected to the driving wheel by a belt, the driving wheel is fixedly mounted on the sleeve shaft, and the air guide fan (33) is fixedly mounted inside the rotating pipe (31).

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