Fluidized bed dryer feed inlet cleaning structure

By designing automated cleaning components and utilizing a motor-driven gear system and auger structure, the problem of frequent shutdowns and blockages during the cleaning of the feed inlet of the fluidized bed dryer was solved, achieving efficient and automated cleaning results and improving production continuity and equipment reliability.

CN224382068UActive Publication Date: 2026-06-19SHANDONG LUSHI PESTICIDE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG LUSHI PESTICIDE CO LTD
Filing Date
2025-07-17
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

In the existing technology, cleaning the feed inlet of a fluidized bed dryer requires frequent shutdowns, and mechanical cleaning cannot solve the problem of arching and blockage caused by material accumulation at the feed inlet, which affects production continuity and efficiency.

Method used

A cleaning assembly including a gear ring, a transmission gear, and a drive gear is designed. The drive gear is driven by a motor to rotate, which drives the scraper to clean the material adhering to the inner wall of the feed inlet. The material is pushed by an auger to stir it, and further cleaning is carried out by pusher blocks and brushes, so as to achieve automated cleaning and prevent clogging.

Benefits of technology

It enables efficient cleaning of the feed inlet without stopping the machine, reducing material residue, preventing arching and blockage, improving cleaning efficiency and equipment reliability, and ensuring smooth material descent.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to feed inlet cleaning technical field discloses a fluidized bed dryer feed inlet cleaning structure, including fluidized bed dryer body, the fluidized bed dryer body top fixedly connected with support plate, the support plate top fixedly connected with feed inlet body, the support plate inside is provided with cleaning assembly, the cleaning assembly includes gear ring, transmission gear and driving gear, the gear ring the transmission gear with the driving gear all rotationally connected in the support plate inside, the gear ring with the transmission gear interlock, the transmission gear with the driving gear interlock. Through motor drive driving gear rotation, through transmission gear drive gear ring rotation, make the scraper inside gear ring adhesion feed inlet body inner wall rotation, can effectively clean the material of feed inlet inner wall adhesion, reduce material residue, keep the feed inlet unobstructed, reduce artificial cleaning cost, promote cleaning efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of feed inlet cleaning technology, specifically a feed inlet cleaning structure for a fluidized bed dryer. Background Technology

[0002] A fluidized bed dryer is a device that uses fluidized bed technology to dry granular and powdered materials. It uses airflow to fluidize the material in the drying chamber, and features high drying efficiency, uniform heating of the material, and low energy consumption. Since the material to be dried often has a certain degree of moisture or stickiness, it is very easy to adhere to the inner wall of the feed inlet during the conveying process. Long-term accumulation can lead to a reduction in the cross-section of the feed inlet or even blockage. Therefore, timely cleaning of the feed inlet is a necessary step to ensure the normal operation of the fluidized bed dryer.

[0003] In the existing technology, the cleaning structure of the feed inlet of a fluidized bed dryer mainly includes two types: one is manual cleaning tools, such as detachable scrapers and brushes, which need to be manually inserted into the feed inlet for scraping and cleaning after the equipment is stopped; the other is a simple mechanical cleaning device, which usually has a fixed or manually rotatable scraper on the inner wall of the feed inlet. The scraper is driven by manually turning the handle to perform simple scraping of the inner wall. Some devices are equipped with a small motor to drive the scraper to rotate, so as to reduce the intensity of manual operation.

[0004] While existing technologies can clean the feed inlet of fluidized bed dryers, they still have some shortcomings in use: manual cleaning requires frequent machine shutdowns, which not only increases labor costs but also seriously affects production continuity and has low cleaning efficiency. Existing mechanical cleaning structures can achieve the cleaning function but cannot solve the problem of arching and blockage caused by material accumulation at the feed inlet, resulting in unstable feeding.

[0005] Therefore, this utility model proposes a cleaning structure for the feed inlet of a fluidized bed dryer to address the shortcomings of the prior art. Utility Model Content

[0006] The purpose of this utility model is to provide a cleaning structure for the feed inlet of a fluidized bed dryer, which solves the following technical problems: the need for frequent machine shutdowns for manual cleaning and the inability of mechanical cleaning to deal with the arching and blockage caused by material accumulation at the feed inlet.

[0007] The purpose of this utility model can be achieved through the following technical solution: a cleaning structure for the feed inlet of a fluidized bed dryer, comprising: a fluidized bed dryer body, a support plate fixedly connected to the top of the fluidized bed dryer body, a feed inlet body fixedly connected to the top of the support plate, and a cleaning component provided inside the support plate;

[0008] The cleaning assembly includes a gear ring, a transmission gear, and a drive gear. The gear ring, the transmission gear, and the drive gear are all rotatably connected inside the support plate. The gear ring meshes with the transmission gear, and the transmission gear meshes with the drive gear. A scraper is fixedly connected inside the gear ring, and the outer periphery of the scraper is attached to the inner wall of the feed inlet body. A drive assembly is provided at the bottom of the support plate, an arch-breaking assembly is provided at the top of the support plate, and a material pushing assembly is provided inside the scraper.

[0009] As a preferred embodiment of this utility model: the drive assembly includes a motor, the motor is mounted on the top of the support plate, and the output end of the motor is fixedly connected to the bottom of the drive gear.

[0010] As a preferred embodiment of this utility model: the arch-breaking component includes a support frame, the support frame is fixedly connected to the top of the support plate, a rotating rod is rotatably connected inside the support frame, the bottom of the rotating rod is fixedly connected to the top of the drive gear, a rotating frame is rotatably connected to the bottom of the support frame, an auger is fixedly connected to the bottom of the rotating frame, a pulley is fixedly connected to the top of the rotating rod, and the other end of the pulley is fixedly connected to the top of the rotating frame.

[0011] As a preferred embodiment of this utility model: the pushing assembly includes a rotating rod, which is rotatably connected inside the scraper. A universal coupling is fixedly connected to the top of the rotating rod, and a reciprocating screw is fixedly connected to the top of the universal coupling. The reciprocating screw is rotatably connected inside the scraper, and a push block is threadedly connected to the outer circumference of the reciprocating screw.

[0012] As a preferred embodiment of this utility model: the feeding assembly further includes a slide rail and a pulley, the slide rail is fixedly connected inside the fluidized bed dryer body, the pulley is fixedly connected to the bottom of the rotating rod, and the pulley is slidably connected inside the slide rail.

[0013] As a preferred embodiment of this utility model, the auger is located in the middle of the feed inlet body.

[0014] As a preferred embodiment of this utility model: the pusher block is attached to the inner wall of the feed inlet body, and the pusher block is slidably connected inside the scraper.

[0015] As a preferred embodiment of this utility model: the end of the pusher that contacts the feed inlet body is provided with bristles, and the bristles are attached to the inner wall of the feed inlet body.

[0016] The beneficial effects of this utility model are:

[0017] (1) This utility model drives the active gear to rotate through the motor, and drives the gear ring to rotate through the transmission gear, so that the scraper inside the gear ring rotates against the inner wall of the feed port body, which can effectively clean the material attached to the inner wall of the feed port, reduce material residue, keep the feed port unobstructed, reduce manual cleaning costs, and improve cleaning efficiency.

[0018] (2) While cleaning the material attached to the inner wall of the feed inlet, the active gear drives the rotating rod to rotate, and the rotating frame and auger are rotated through the belt pulley. The auger is located in the middle of the feed inlet body and can stir and push the material to prevent the material from arching and blocking at the feed inlet, ensuring that the material can fall smoothly and improving the feeding stability.

[0019] (3) While cleaning the material attached to the inner wall of the feed inlet, the rotating rod rotates with the movement of the scraper under the action of the slide rail and pulley. The universal coupling drives the reciprocating screw to rotate, so that the push block slides back and forth in the scraper. The bristles on the push block further clean the residual material on the inner wall of the feed inlet, enhance the cleaning effect, avoid material adhesion and accumulation, and improve the reliability of equipment operation. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 This is a perspective view of the present utility model;

[0022] Figure 2 This is a schematic diagram of the feed inlet body in this utility model;

[0023] Figure 3 This is a schematic diagram of the support plate in this utility model;

[0024] Figure 4 This is a schematic diagram of the gear ring in this utility model;

[0025] Figure 5 This is a schematic diagram of the slide rail in this utility model;

[0026] Figure 6 This is a schematic diagram of the scraper in this utility model;

[0027] Figure 7 for Figure 6 Enlarged view of point A in the middle.

[0028] Figure descriptions: 1. Fluidized bed dryer body; 2. Support plate; 3. Feed inlet body; 4. Gear ring; 5. Scraper; 6. Transmission gear; 7. Drive gear; 8. Support frame; 9. Rotating rod; 10. Pulley; 11. Rotating frame; 12. Screw; 13. Motor; 14. Slide rail; 15. Rotating rod; 16. Universal coupling; 17. Reciprocating lead screw; 18. Push block; 19. Pulley. Detailed Implementation

[0029] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1 - Figure 7 As shown, this utility model is a cleaning structure for the feed inlet of a fluidized bed dryer, including a fluidized bed dryer body 1, a support plate 2 fixedly connected to the top of the fluidized bed dryer body 1, and a feed inlet body 3 fixedly connected to the top of the support plate 2.

[0031] Specifically, the fluidized bed dryer body 1 provides a working space for material drying; the support plate 2 serves as a support structure, with the top used to fix and connect the feed inlet body 3, playing the role of bearing and connecting various components. The feed inlet body 3 is the channel for material to enter the fluidized bed dryer body 1, used to transport the material to be dried.

[0032] Please see Figure 1 - Figure 3 As shown, a cleaning assembly is provided inside the support plate 2. The cleaning assembly includes a gear ring 4, a transmission gear 6, and a drive gear 7. The gear ring 4, transmission gear 6, and drive gear 7 are all rotatably connected inside the support plate 2. The gear ring 4 meshes with the transmission gear 6, and the transmission gear 6 meshes with the drive gear 7. A scraper 5 is fixedly connected inside the gear ring 4. The outer periphery of the scraper 5 is attached to the inner wall of the feed inlet body 3. A drive assembly is provided at the bottom of the support plate 2. The drive assembly includes a motor 13. The motor 13 is installed on the top of the support plate 2, and the output end of the motor 13 is fixedly connected to the bottom of the drive gear 7.

[0033] Specifically, the gear ring 4 meshes with the transmission gear 6 and rotates under the drive of the transmission gear 6. The scraper 5 fixed inside rotates with it, providing rotational support for the scraper 5. The transmission gear 6 meshes with the drive gear 7 and the gear ring 4 respectively, playing the role of transmitting power and transmitting the rotational motion of the drive gear 7 to the gear ring 4. The outer circumference of the scraper 5 is attached to the inner wall of the feed inlet body 3. When it rotates with the gear ring 4, it can scrape off the material attached to the inner wall of the feed inlet, realizing the cleaning function. The motor 13 is installed on the top of the support plate 2, and its output end is fixedly connected to the bottom of the drive gear 7, providing power for the rotation of the drive gear 7.

[0034] Please see Figure 2 - Figure 3As shown, the top of the support plate 2 is provided with an arch-breaking component, which includes a support frame 8. The support frame 8 is fixedly connected to the top of the support plate 2. A rotating rod 9 is rotatably connected inside the support frame 8. The bottom of the rotating rod 9 is fixedly connected to the top of the drive gear 7. A rotating frame 11 is rotatably connected to the bottom of the support frame 8. An auger 12 is fixedly connected to the bottom of the rotating frame 11. A pulley 10 is fixedly connected to the top of the rotating rod 9. The other end of the pulley 10 is fixedly connected to the top of the rotating frame 11. The auger 12 is located in the middle of the feed inlet body 3.

[0035] Specifically, the support frame 8 is fixedly connected to the top of the support plate 2, providing rotational support for the rotating rod 9 and the rotating frame 11. The bottom of the rotating rod 9 is fixedly connected to the top of the drive gear 7, and rotates with the drive gear 7 to transmit power to the pulley 10 at the top. The two ends of the pulley 10 are connected to the rotating rod 9 and the rotating frame 11 respectively, transmitting the rotational motion of the rotating rod 9 to the rotating frame 11. The rotating frame 11 rotates under the drive of the pulley 10, and the auger 12 fixed at its bottom rotates with it. The auger 12 is located in the middle of the feed inlet body 3. When rotating, it stirs and pushes the material to prevent the material from arching and blocking at the feed inlet, ensuring that the material falls smoothly.

[0036] Please see Figure 4 - Figure 7 As shown, a pushing assembly is provided inside the scraper 5. The pushing assembly includes a rotating rod 15, which is rotatably connected inside the scraper 5. A universal coupling 16 is fixedly connected to the top of the rotating rod 15. A reciprocating screw 17 is fixedly connected to the top of the universal coupling 16. The reciprocating screw 17 is rotatably connected inside the scraper 5. A push block 18 is threadedly connected to the outer circumference of the reciprocating screw 17. The pushing assembly also includes a slide rail 14 and a pulley 19. The slide rail 14 is fixedly connected inside the fluidized bed dryer body 1. The pulley 19 is fixedly connected to the bottom of the rotating rod 15 and is slidably connected inside the slide rail 14. The push block 18 is attached to the inner wall of the feed inlet body 3 and is slidably connected inside the scraper 5. A brush is provided at the end of the push block 18 that contacts the feed inlet body 3. The brush is attached to the inner wall of the feed inlet body 3.

[0037] Specifically, the rotating rod 15 is rotatably connected inside the scraper 5, and the pulley 19 fixed at the bottom slides in the slide rail 14. It rotates as the scraper 5 rotates, providing power to the universal coupling 16. The universal coupling 16 connects the rotating rod 15 and the reciprocating screw 17, transmitting the rotational motion of the rotating rod 15 to the reciprocating screw 17 to adapt to angle changes during movement. The reciprocating screw 17 is rotatably connected inside the scraper 5, and its outer circumference is threadedly connected to the push block 18. When rotating, it drives the push block 18 to slide back and forth inside the scraper 5. The push block 18 fits against the inner wall of the feed inlet body 3 and is slidably connected inside the scraper 5. When it slides back and forth with the reciprocating screw 17, it cleans the residual material on the inner wall of the feed inlet. The bristles at its contact end fit against the inner wall of the feed inlet, enhancing the cleaning effect. The slide rail 14 is fixed inside the fluidized bed dryer body 1, providing a sliding track for the pulley 19 and guiding the rotating rod 15 to rotate stably with the movement of the scraper 5.

[0038] The working principle of this utility model is as follows: When it is necessary to clean the material attached to the inner wall of the feed inlet, the motor 13 is started. The output end of the motor 13 drives the drive gear 7 to rotate. Since the drive gear 7 and the transmission gear 6 mesh with each other, the rotation of the drive gear 7 will drive the transmission gear 6 to rotate. The transmission gear 6 meshes with the gear ring 4, thereby driving the gear ring 4 to rotate inside the support plate 2. The scraper 5 fixed inside the gear ring 4 rotates with the gear ring 4. The outer periphery of the scraper 5 is in contact with the inner wall of the feed inlet body 3. During the rotation, the material attached to the inner wall of the feed inlet can be scraped off, realizing automatic cleaning of the feed inlet and reducing material residue.

[0039] While the cleaning components are working, the rotation of the drive gear 7 will drive the top rotating rod 9 to rotate synchronously. The pulley 10 at the top of the rotating rod 9 will rotate with the rotating rod 9. Since the other end of the pulley 10 is connected to the top of the rotating frame 11, the pulley 10 will drive the rotating frame 11 to rotate at the bottom of the support frame 8. The auger 12 at the bottom of the rotating frame 11 will rotate together with the rotating frame 11. Since the auger 12 is located in the middle of the feed inlet body 3, its rotation can stir and push the material in the feed inlet, prevent the material from accumulating and arching at the feed inlet, and ensure that the material can fall smoothly into the fluidized bed dryer body 1.

[0040] During the rotation of scraper 5, the internal rotating rod 15 moves together with scraper 5. The pulley 19 at the bottom of the rotating rod 15 slides in the slide rail 14, causing the rotating rod 15 to rotate. The rotating rod 15 drives the reciprocating screw 17 to rotate inside scraper 5 through universal coupling 16. Since the reciprocating screw 17 is threadedly connected to push block 18, the rotation of the reciprocating screw 17 will cause push block 18 to slide back and forth inside scraper 5. Push block 18 fits against the inner wall of feed port body 3, and the bristles at its contact end slide with push block 18 to further clean the material remaining on the inner wall of feed port, enhance the cleaning effect, and prevent material from adhering and accumulating.

[0041] The above description details one embodiment of the present utility model, but it is merely a preferred embodiment and should not be construed as limiting the scope of the present utility model. All equivalent variations and improvements made within the scope of the present utility model application should still fall within the patent coverage of the present utility model.

Claims

1. A fluidized bed dryer feed port cleaning structure comprising a fluidized bed dryer body (1), characterized by, The fluidized bed dryer body (1) is fixedly connected to a support plate (2) at the top, and the support plate (2) is fixedly connected to a feed inlet body (3) at the top. The support plate (2) is equipped with a cleaning component inside. The cleaning assembly includes a gear ring (4), a transmission gear (6), and a drive gear (7). The gear ring (4), the transmission gear (6), and the drive gear (7) are all rotatably connected inside the support plate (2). The gear ring (4) meshes with the transmission gear (6), and the transmission gear (6) meshes with the drive gear (7). A scraper (5) is fixedly connected inside the gear ring (4). The outer periphery of the scraper (5) is attached to the inner wall of the feed inlet body (3). A drive assembly is provided at the bottom of the support plate (2), an arch-breaking assembly is provided at the top of the support plate (2), and a material pushing assembly is provided inside the scraper (5).

2. A fluid bed dryer feed port cleaning structure according to claim 1, wherein The drive assembly includes a motor (13), which is mounted on the top of the support plate (2), and the output end of the motor (13) is fixedly connected to the bottom of the drive gear (7).

3. The fluidized bed dryer feed inlet cleaning structure according to claim 1, characterized in that, The arch-breaking assembly includes a support frame (8), which is fixedly connected to the top of the support plate (2). A rotating rod (9) is rotatably connected inside the support frame (8). The bottom of the rotating rod (9) is fixedly connected to the top of the drive gear (7). A rotating frame (11) is rotatably connected to the bottom of the support frame (8). An auger (12) is fixedly connected to the bottom of the rotating frame (11). A pulley (10) is fixedly connected to the top of the rotating rod (9). The other end of the pulley (10) is fixedly connected to the top of the rotating frame (11).

4. The fluidized bed dryer feed inlet cleaning structure according to claim 1, characterized in that, The feeding assembly includes a rotating rod (15), which is rotatably connected inside the scraper (5). A universal coupling (16) is fixedly connected to the top of the rotating rod (15), and a reciprocating screw (17) is fixedly connected to the top of the universal coupling (16). The reciprocating screw (17) is rotatably connected inside the scraper (5), and a push block (18) is threadedly connected to the outer circumference of the reciprocating screw (17).

5. The fluidized bed dryer feed inlet cleaning structure according to claim 4, characterized in that, The feeding assembly also includes a slide rail (14) and a pulley (19). The slide rail (14) is fixedly connected inside the fluidized bed dryer body (1), and the pulley (19) is fixedly connected to the bottom of the rotating rod (15). The pulley (19) is slidably connected inside the slide rail (14).

6. The fluidized bed dryer feed inlet cleaning structure according to claim 3, characterized in that, The auger (12) is located in the middle of the feed inlet body (3).

7. The fluidized bed dryer feed inlet cleaning structure according to claim 5, characterized in that, The pusher (18) is attached to the inner wall of the feed inlet body (3), and the pusher (18) is slidably connected inside the scraper (5).

8. The fluidized bed dryer feed inlet cleaning structure according to claim 7, characterized in that, The pusher (18) is provided with bristles at the end that contacts the feed inlet body (3), and the bristles are attached to the inner wall of the feed inlet body (3).