Vibration device for fluidized bed dryer
By introducing a vibration device into the fluidized bed dryer, the problem of powder on the filter bag not falling off was solved, and continuous vibration of the filter bag was achieved, preventing clogging and waste and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-03-31
AI Technical Summary
In fluidized bed dryers, the powder adhering to the filter bags cannot be completely shaken off, resulting in waste and filter bag blockage, which increases costs.
By increasing the vibration frequency of the filter bag, and utilizing a vibration device including a vibrating plate, a miniature vibration motor, a lifting cylinder, and a tension spring, continuous vibration of the filter bag is achieved, ensuring that the powder falls back into the fluidized bed.
It effectively prevents powder from adhering to the filter bag, keeps the filter bag unobstructed, reduces waste and clogging, and lowers costs.
Smart Images
Figure CN224065767U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of dryers, specifically relating to a vibration device for a fluidized bed dryer. Background Technology
[0002] Fluidized bed dryers, also known as boiling granulation dryers, involve material powder particles undergoing annular fluidization within a raw material container (fluidized bed). These particles are preheated and mixed with purified heated air. A binder solution is then atomized and sprayed in, causing several particles to aggregate into binder-containing granules. As the hot air continuously dries the material, moisture evaporates from the granules, and the binder solidifies. This process is repeated continuously, forming ideal, uniform, multi-porous spherical particles. During fluidization, fine material powder rises under the strong airflow. Some of the fine powder rises to the filter bag and is captured. After a certain time, the exhaust valve closes, and the filter bag in the filter chamber is shaken up and down by a cylinder. The shaken-off powder falls back into the fluidized bed for re-granulation, thus cleaning the captured powder, keeping the filter bag unobstructed, and reducing costs. However, during the cylinder's lifting and lowering of the filter bag, not all the powder on the filter bag is shaken off; some powder remains, resulting in powder waste, increased costs, and, over time, filter bag clogging.
[0003] In view of this, in order to solve the above problems, this utility model proposes a fluidized bed dryer that increases the shaking frequency of the filter bag, so that the powder on the filter bag is shaken off and falls back into the fluidized bed for regranulation, and also keeps the filter bag unobstructed. Summary of the Invention
[0004] This invention provides a vibration device for a fluidized bed dryer. By increasing the vibration frequency of the filter bag, it can prevent the filter bag from being coated with powder, thus keeping the filter bag in good condition. The specific solution is as follows:
[0005] A vibration device for a fluidized bed dryer includes a dryer body. A filter chamber is located on the upper part of the dryer body. A filter bag mounting part is located within the filter chamber. The bottom surface of the filter bag mounting part has several through holes, and elongated filter bags are respectively installed in the through holes, with their tops connected to the top surface of the filter bag mounting part. The filter bag mounting part moves up and down via a cylinder. A vibrating disc is horizontally located in the middle of the filter bag mounting part. The vibrating disc has through holes for several filter bags to pass through. A lifting cylinder is located on the upper surface of the filter bag mounting part. The output end of the lifting cylinder passes through the top surface of the filter bag mounting part and extends downwards. A first ball joint connector is located in the middle of the upper surface of the vibrating disc. The end of the output end of the lifting cylinder is provided with a first movable ball joint suitable for the ball joint connector. Tension springs are vertically arranged upwards on opposite sides of the vibrating disc edges of the first ball joint, and the tops of the two tension springs are respectively connected to the filter bag mounting part. A miniature vibration motor is located on the edge of the vibrating disc. The miniature vibration motor and the lifting cylinder are respectively connected to a controller via signal lines.
[0006] Furthermore, the inner walls of several of the through holes are provided with a plurality of protrusions arranged in the radial direction at intervals.
[0007] Furthermore, there are two miniature vibration motors, which are spaced apart on the circumferential edge of the vibratory feeder. The two miniature vibration motors are connected to the controller via signal lines.
[0008] Furthermore, the two micro vibration motors are spaced 90°-180° apart in the circumferential direction of the vibratory disk.
[0009] Furthermore, the first ball head connector has a second ball head connector on each side of the vibrating plate edge. The two second ball head connectors each have a second movable ball head. The upper side of the two second movable ball heads is vertically connected to a support rod. The two support rods pass through the top surface of the filter bag mounting part and extend upward. The two tension springs are respectively sleeved on the two support rods, and their two ends are fixedly connected to the top of the filter bag mounting part and the second ball head connector.
[0010] Furthermore, a limit ring is horizontally connected to the top surface of the two support rods.
[0011] The beneficial effects of this utility model are:
[0012] This utility model discloses a vibration device for a fluidized bed dryer. It comprises a vibrating disc, a vibrating motor, a tension spring, a lifting cylinder, a first ball-head connector, and a first movable ball head. When the filter bag mounting part moves up and down due to the cylinder drive, causing the filter bag to vibrate, the lifting cylinder and the vibrating motor are simultaneously activated. The continuous vibration of the vibrating motor causes the vibrating disc to vibrate continuously, and the reciprocating motion of the lifting cylinder causes the several through holes to continuously contact and vibrate with the filter bag. This allows the powder adhering to the filter bag to fall back into the fluidized bed, maintaining the unobstructed flow of the filter bag. By setting several protrusions on the inner wall of the through holes and installing two miniature vibrating motors, the vibration intensity of the vibrating disc can be further increased, and the protrusions can better generate vibration force on the filter bag, further ensuring that the powder on the filter bag is vibrated and falls off. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the dryer body of this utility model.
[0014] Figure 2 This is a bottom view of the filter chamber of this utility model.
[0015] Figure 3 This is a schematic diagram showing the installation position of the device of this utility model.
[0016] Figure 4 This is a schematic diagram of the structure of this utility model.
[0017] Figure 5 for Figure 4 Enlarged view of section A.
[0018] Explanation of reference numerals in the attached drawings: 1. Dryer body; 101. Filter chamber; 2. Filter bag mounting part; 201. Through hole; 3. Filter bag; 4. Cylinder; 5. Vibrating plate; 6. Through hole; 7. Lifting cylinder; 8. First ball joint connector; 9. Tension spring; 10. Miniature vibration motor; 11. Protrusion; 12. Second ball joint connector; 13. Support rod; 14. Limiting ring. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0020] See Figure 1-5A vibration device for a fluidized bed dryer includes a dryer body 1. A filter chamber 101 is located on the upper part of the dryer body 1. A filter bag mounting part 2 is located inside the filter chamber 101. The filter bag mounting part 2 consists of two circular plates spaced vertically apart. A plurality of through holes 201 are formed on the bottom surface of the filter bag mounting part 2. Elongated filter bags 3 are respectively placed inside the through holes 201, and their tops are connected to the top surface of the filter bag mounting part 2. The filter bag mounting part 2 moves vertically via a cylinder 4. A vibrating disc 5 is horizontally positioned in the middle of the filter bag mounting part 2. The diameter of the vibrating disc 5 is the same as that of the filter bag mounting part 2. Through holes 6 are formed on the vibrating disc 5 to allow the filter bags 3 to pass through. The inner diameter of the through holes 6 is the same as the outer diameter of the filter bags 3. The upper surface of the filter bag mounting part 2... The vibrating plate 5 is equipped with a lifting cylinder 7. The output end of the lifting cylinder 7 passes through the top surface of the filter bag mounting part 2 and extends downward. The middle of the upper surface of the vibrating plate 5 is equipped with a first ball head connector 8. The first ball head connector 8 is a commonly used ball head connector. The end of the output end of the lifting cylinder 7 is equipped with a first movable ball head suitable for the ball head connector. The first ball head connector 8 is equipped with tension springs 9 vertically upward at the edges of the vibrating plate 5 on both sides. The design of the tension springs 9 not only improves the mobility of the vibrating plate 5, but also stabilizes the vibrating plate 5 when it is static. The tops of the two tension springs 9 are respectively connected to the filter bag mounting part 2. The edge of the vibrating plate 5 is equipped with a micro vibration motor 10. The micro vibration motor 10 and the lifting cylinder 7 are respectively connected to the controller through signal lines.
[0021] The inner walls of the preferred through holes 6 are provided with a plurality of protrusions 11 arranged in the radial direction. The multiple protrusions 11 on the inner walls of the through holes 6 can generate more friction on the filter bag 3 when the micro vibration motor 10 vibrates, thereby better vibrating the filter bag 3 to ensure that the powder attached to the filter bag 3 falls back into the fluidized bed for regranulation.
[0022] Preferably, there are two miniature vibration motors 10, which are spaced apart on the circumferential edge of the vibratory plate 5. The two miniature vibration motors 10 are connected to the controller through signal lines. The arrangement of two miniature vibration motors 10 facilitates the better provision of vibration force.
[0023] The preferred arrangement of the two miniature vibration motors 10 with a circumferential spacing of 90°-180° around the vibration plate 5 can create a gravity difference on the vibration plate 5, thereby increasing the vibration force.
[0024] The preferred first ball head connector 8 is provided with second ball head connectors 12 on the edges of the vibrating plate 5 on both sides. The two second ball head connectors 12 are provided with second movable ball heads. The upper side of the two second movable ball heads is vertically connected to support rods 13. The two support rods 13 pass through the top surface of the filter bag 3 mounting part 2 and extend upward. Two tension springs 9 are respectively sleeved on the two support rods 13, and their two ends are fixedly connected to the top of the filter bag mounting part 2 and the second ball head connector 12, which can effectively ensure the stability of the vibrating plate 5.
[0025] The top surface of the preferred support rod 13 is horizontally connected to a limit ring 14.
[0026] The working principle of this utility model:
[0027] When the cylinder 4 drives the filter bag mounting part 2 to move up and down, thereby causing the filter bag 3 to shake up and down, the lifting cylinder 7 and the two micro vibration motors 10 are started simultaneously. At this time, the continuous vibration of the micro vibration motors 10 causes the vibrating plate to continuously vibrate up and down, and the lifting cylinder 7 drives the vibrating plate 5 to move up and down. This allows the protrusions 11 on the inner wall of several through holes 6 to continuously contact and shake with the filter bag 3, thereby causing the powder adhering to the filter bag 3 to fall back to the fluidized bed, keeping the filter bag unobstructed.
[0028] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.
[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A vibrating device for a fluidized bed dryer, characterized by: The utility model relates to a filter bag installation part (2) bottom surface is equipped with a plurality of through holes (201), a plurality of the through holes (201) are equipped with long strip type filter bags (3) respectively, and its top is connected with filter bag installation part (2) top surface, filter bag installation part (2) moves up and down through air cylinder (4), the middle part of filter bag installation part (2) is equipped with a vibration disc (5) horizontally, the vibration disc (5) is equipped with the through -hole (6) of a plurality of filter bags (3) through on, the upper surface of filter bag installation part (2) is equipped with lifting cylinder (7), lifting cylinder (7) output passes through filter bag installation part (2) top surface and extends downward, the upper surface middle part of vibration disc (5) is equipped with first ball head connecting piece (8), the end of lifting cylinder (7) output is equipped with the first movable ball head of being suitable for ball head connecting piece, the first ball head connecting piece (8) relative both sides vibration disc (5) edge is equipped with the tension spring (9) that sets up vertically upward respectively, and the top of two tension springs (9) is connected with filter bag installation part (2) respectively, vibration disc (5) edge is equipped with micro -vibration motor (10), micro -vibration motor (10) and lifting cylinder (7) are connected with controller respectively through signal line.
2. A vibrating device for a fluidized bed dryer according to claim 1, characterized in that: A plurality of the through hole (6) inner wall is equipped with a plurality of protrusions (11) along its radial direction.
3. The vibrating device for fluidized bed dryer according to claim 1, wherein: The micro -vibration motor (10) is two, and interval sets up at the circumferential edge of vibration disc (5), and two micro -vibration motors (10) are connected with controller respectively through signal line.
4. The vibrating device for fluidized bed dryer according to claim 1, wherein: The interval distance of two micro -vibration motors (10) in the circumferential direction of vibration disc (5) is between 90 DEG and 180 DEG.
5. The vibrating device for fluidized bed dryer according to claim 1, wherein: The second ball head connecting piece (12) is respectively arranged on the edges of the vibration disc (5) on the opposite sides of the first ball head connecting piece (8), and second movable ball heads are respectively arranged on the second ball head connecting pieces (12).
6. A vibrating device for a fluidized bed dryer according to claim 5, characterized in that: Two support rods (13) are respectively arranged on the second ball head connecting pieces (12), and the top surfaces of the two support rods (13) are connected with limit rings (14). Two support rods (13) are respectively arranged on the second ball head connecting pieces (12), and the top surfaces of the two support rods (13) are connected with limit rings (14).