A device for refining particles
By combining centrifugal ejection and grinding with vibration discharge technology in the particle refinement device, the problem of long and thin particles produced by existing granulation mechanisms has been solved, thereby improving the uniformity and flowability of the particles.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CENT SOUTH UNIV
- Filing Date
- 2023-08-08
- Publication Date
- 2026-04-21
AI Technical Summary
The granules produced by existing granulators tend to be elongated, have poor flowability, and insufficient bulk density, resulting in low density and large fluctuations during molding.
A particle refining device is used, which uses a servo motor to drive the feed pipe and turntable to rotate, and combines a brush to centrifuge and grind the material. The material is further refined by the brush on the side wall of the turntable, and the particles are evenly discharged by a vibrating motor.
The resulting granules are uniform and full, reducing the fluctuation of bulk density and improving the flowability and molding effect of the granules.
Smart Images

Figure CN116985293B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of granulation equipment technology, and more specifically to a device for particle refinement. Background Technology
[0002] Reciprocating pellet mill granulation is a convenient and fast granulation method. Due to the viscosity of the glue, the granules produced are often long strips. These long strips have poor flowability and low bulk density. In the electronic materials industry, such granules will result in low density and large fluctuations in the green body density during molding due to their poor flowability and low bulk density.
[0003] Existing granulators typically feed materials into a screen, where a brush rotates on the screen to break the particles. The particles then fall automatically from the bottom of the screen. This process results in premature discharge of the particles, which tend to be elongated and of varying lengths. To address this, we propose a particle refining device. Summary of the Invention
[0004] The purpose of this invention is to provide a particle refinement apparatus to address the aforementioned shortcomings in the technology.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a particle refinement device, comprising a circular granulation box, wherein a first support frame is fixedly provided on the inner wall of the circular granulation box at equal intervals, a metal mesh cover is fixedly provided on the outer wall of one end of the first support frame, the bottom outer wall of the metal mesh cover is attached to the top outer wall of the circular granulation box, a feeding pipe is provided at the top center of the metal mesh cover, a turntable is fixedly provided on the bottom outer wall of the feeding pipe, brushes are fixedly provided on the bottom outer wall and side wall of the turntable at equal intervals, a driven pulley is fixedly provided on the top outer wall of the feeding pipe, a fixing cover is fixedly provided on the outer wall of the circular granulation box, a servo motor is fixedly provided on the inner wall of the fixing cover, a driving pulley is fixedly provided on the output shaft of the servo motor, and a belt strip is sleeved on the outer wall of the driving pulley and the driven pulley.
[0006] Preferably, the inner wall of the circular granulation box is fixedly provided with a second support frame that is evenly distributed. One end of the second support frame is fixedly provided with a fixing ring. The outer wall of the fixing ring is fixedly provided with a bearing ring. The outer ring of the bearing ring is fixedly connected to the inner wall of the fixing ring, which facilitates fixing the feed pipe to the top of the metal mesh cover.
[0007] Preferably, a feeding hopper is fixedly provided at one end of the top of the feeding pipe.
[0008] Preferably, a motor mounting plate is fixedly provided on the bottom outer wall of the circular granulation box, and a vibration motor is fixedly provided on the inner wall of the motor mounting plate.
[0009] Preferably, the bottom of the circular granulation box is provided with a base plate, and the bottom outer wall of the circular granulation box and the top outer wall of the base plate are fixedly provided with equally spaced fixed seats. A spring bracket is fixedly provided on the outer wall of the corresponding fixed seat. The material in the circular granulation box can be driven to vibrate by the vibration motor, and the circular granulation box vibrates on the top of the base plate in conjunction with the spring bracket.
[0010] Preferably, the brush is made of polytetrafluoroethylene material.
[0011] Preferably, a discharge port is opened on one side of the outer wall of the circular granulation box, and a discharge box is fixedly provided on the inner wall of the discharge port, so that the material can be discharged through the discharge box and the vibration motor.
[0012] Preferably, the servo motor and the vibration motor are connected to a power switch via wires, and the power switch is connected to a power cord.
[0013] S1: When in use, first discharge the abrasive media zirconium balls into the feeding pipe through the feeding hopper, then discharge the granulated material into the feeding pipe through the feeding hopper. The output shaft of the servo motor drives the active pulley to rotate, the active pulley drives the driven pulley to rotate through the belt strip, the driven pulley drives the feeding pipe to rotate, and the feeding pipe drives the turntable and brush to rotate on the inner wall of the metal mesh cover.
[0014] S2: The abrasive media and material are thrown out from the center of the metal mesh cover through the rotating feed pipe. Centrifugal force causes the abrasive media and material to be thrown to the edge of the metal mesh cover. The material is then rounded and cut by the brushes at the bottom of the turntable. After the material is thrown to the edge of the metal mesh cover, it is further ground and cut by the brushes on the side wall of the turntable, which can refine the material. The ground and cut material is discharged into the circular granulation box through the holes of the metal mesh cover. The resulting material particles are uniform and full, reducing the fluctuation of the bulk density of the granules and achieving good granulation effect.
[0015] S3: The particles thrown between the circular granulation box and the metal mesh cover need to be discharged. At this time, the vibration motor fixed on the motor mounting plate at the bottom of the circular granulation box generates vibration. The particles in the circular granulation box move towards the discharge port through vibration and are discharged into the designated container through the discharge box.
[0016] The technical effects and advantages provided by the present invention in the above technical solution are as follows:
[0017] Material is fed into the metal mesh cover from the center of the turntable through a feeding pipe. A servo motor drives the feeding pipe to rotate, which in turn drives the turntable and brushes to rotate on the inner wall of the metal mesh cover. Centrifugal force throws the material to the edge of the metal mesh cover. As the material moves towards the edge of the metal mesh cover, the brushes at the bottom of the turntable round and cut it, preventing it from falling and continuing to be ground within the metal mesh cover. After reaching the edge of the metal mesh cover, the material is further ground and cut by the brushes on the side wall of the turntable, refining the material. The ground and cut material is then discharged into the circular granulation box through the holes in the metal mesh cover. This process produces uniform and full granules, reducing the fluctuation range of the bulk density of the granules and resulting in a good granulation effect. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.
[0019] Figure 1 This is a three-dimensional structural diagram of a particle refinement device according to the present invention;
[0020] Figure 2 This is a top view of the circular granulation box of the particle refining device of the present invention;
[0021] Figure 3 This is a schematic diagram of the circular granulation box structure of a particle refining device according to the present invention;
[0022] Figure 4 This is a schematic diagram of the rotary structure of a particle refining device according to the present invention;
[0023] Figure 5 This is a schematic diagram of the base plate structure of a particle refinement device according to the present invention.
[0024] Explanation of reference numerals in the attached figures:
[0025] 1. Circular granulation box; 2. First support frame; 3. Metal mesh cover; 4. Second support frame; 5. Fixing ring; 6. Feed pipe; 7. Turntable; 8. Brush; 9. Bearing ring; 10. Feed hopper; 11. Driven pulley; 12. Fixing cover; 13. Servo motor; 14. Drive pulley; 15. Discharge port; 16. Discharge box; 17. Motor mounting plate; 18. Vibration motor; 19. Base plate; 20. Fixing seat; 21. Spring bracket; 22. Belt strip. Detailed Implementation
[0026] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings. Example 1
[0027] Refer to the instruction manual appendix Figure 1-5 A particle refining device includes a circular granulation box 1. A first support frame 2, evenly distributed, is fixedly mounted on the inner wall of the circular granulation box 1. A metal mesh cover 3 is fixedly mounted on the outer wall of one end of the first support frame 2. The bottom outer wall of the metal mesh cover 3 is attached to the top outer wall of the circular granulation box 1. A feeding pipe 6 is located at the top center of the metal mesh cover 3. A turntable 7 is fixedly mounted on the bottom outer wall of the feeding pipe 6. Brushes 8, evenly distributed, are fixedly mounted on the bottom outer wall and side walls of the turntable 7. A driven pulley 11 is fixedly mounted on the top outer wall of the feeding pipe 6. A fixing cover 12 is fixedly mounted on the outer wall of the circular granulation box 1. A servo motor 13 is fixedly mounted on the inner wall of the fixing cover 12. A driving pulley 14 is fixedly mounted on the output shaft of the servo motor 13. A belt strip 22 is sleeved between the driving pulley 14 and the outer wall of the driven pulley 11. Example 2
[0028] Based on Embodiment 1, the inner wall of the circular granulation box 1 is fixedly provided with a second support frame 4 that is evenly distributed. One end of the second support frame 4 is fixedly provided with a fixing ring 5. The outer wall of the fixing ring 5 is fixedly provided with a bearing ring 9. The outer ring of the bearing ring 9 is fixedly connected to the inner wall of the fixing ring 5, so as to facilitate fixing the feed pipe 6 to the top of the metal mesh cover 3. Example 3
[0029] Based on Embodiment 1, a feeding hopper 10 is fixedly provided at one end of the top of the feeding pipe 6, the brush 8 is made of polytetrafluoroethylene material, and the servo motor 13 and the vibration motor 18 are connected to a power switch through wires, and the power switch is connected to a power cord. Example 4
[0030] Based on Embodiment 1, a motor mounting plate 17 is fixedly provided on the bottom outer wall of the circular granulation box 1, and a vibration motor 18 is fixedly provided on the inner wall of the motor mounting plate 17. A bottom plate 19 is provided at the bottom of the circular granulation box 1. Fixed seats 20 are fixedly provided at equal intervals on the bottom outer wall of the circular granulation box 1 and the top outer wall of the bottom plate 19. A spring bracket 21 is fixedly provided on the outer wall of the corresponding fixed seat 20. The vibration motor 18 can drive the material in the circular granulation box 1 to vibrate. With the help of the spring bracket 21, the circular granulation box 1 vibrates on the top of the bottom plate 19. A discharge port 15 is opened on one side outer wall of the circular granulation box 1. A discharge box 16 is fixedly provided on the inner wall of the discharge port 15. The material is conveniently discharged through the discharge box 16 and the vibration motor 18.
[0031] Working principle of this invention:
[0032] Refer to the instruction manual appendix Figure 1-5In operation, the abrasive media (zirconia balls) are first discharged into the feed pipe 6 through the feed hopper 10. Then, the granulated material is discharged into the feed pipe 6 through the feed hopper 10. The output shaft of the servo motor 13 drives the drive pulley 14 to rotate. The drive pulley 14 drives the driven pulley 11 to rotate through the belt strip 22. The driven pulley 11 drives the feed pipe 6 to rotate. The feed pipe 6 drives the turntable 7 and the brush 8 to rotate on the inner wall of the metal mesh cover 3. The abrasive media and material are thrown out at the center of the metal mesh cover 3 through the rotating feed pipe 6. Centrifugal force causes the abrasive media and material to be thrown to the edge of the metal mesh cover 3. The brush 8 at the bottom of the turntable 7 rolls the material into a round shape. After the material is thrown to the edge of the metal mesh cover 3, it is further ground and cut by the brush 8 on the side wall of the turntable 7, which can refine the material. The ground and cut material is discharged into the circular granulation box 1 through the holes of the metal mesh cover 3. The resulting material particles are uniform and full, reducing the fluctuation range of the bulk density of the material and achieving good granulation effect. The particles thrown between the circular granulation box 1 and the metal mesh cover 3 need to be discharged. At this time, the vibration motor 18 fixedly installed on the motor mounting plate 17 at the bottom of the circular granulation box 1 generates vibration. The particles in the circular granulation box 1 move towards the discharge port 15 through the vibration and are discharged into the designated container through the discharge box 16.
[0033] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A particle refining device, comprising a circular granulation box (1), characterized in that: The inner wall of the circular granulation box (1) is fixed with a first support frame (2) distributed at equal intervals. A metal mesh cover (3) is fixed on the outer wall of one end of the first support frame (2). The bottom outer wall of the metal mesh cover (3) is attached to the top outer wall of the circular granulation box (1). A feeding pipe (6) is provided at the top center of the metal mesh cover (3). A turntable (7) is fixed on the bottom outer wall of the feeding pipe (6). Brushes (8) are fixed on the bottom outer wall and side wall of the turntable (7). A driven pulley (11) is fixed on the top outer wall of the feeding pipe (6). A fixed cover (12) is fixed on the outer wall of the circular granulation box (1). A servo motor (13) is fixed on the inner wall of the fixed cover (12). A drive pulley (14) is fixed on the output shaft of the servo motor (13). A belt strip (22) is sleeved on the outer wall of the drive pulley (14) and the driven pulley (11). The inner wall of the circular granulation box (1) is fixedly provided with a second support frame (4) distributed at equal intervals. One end of the second support frame (4) is fixedly provided with a fixing ring (5). The outer wall of the fixing ring (5) is fixedly provided with a bearing ring (9). The outer ring of the bearing ring (9) is fixedly connected to the inner wall of the fixing ring (5). The top end of the feeding pipe (6) is fixedly provided with a feeding hopper (10). The bottom of the circular granulation box (1) is provided with a bottom plate (19), and the bottom outer wall of the circular granulation box (1) and the top outer wall of the bottom plate (19) are fixedly provided with equally spaced fixed seats (20), and the outer wall of the fixed seats (20) is fixedly provided with spring brackets (21). Material is fed into the metal mesh cover (3) from the center of the turntable (7) through the feeding pipe (6). The feeding pipe (6) is rotated by the servo motor (13). The feeding pipe (6) drives the turntable (7) and the brush (8) to rotate on the inner wall of the metal mesh cover (3). The centrifugal force causes the material to be thrown to the edge of the metal mesh cover (3). The brush (8) at the bottom of the turntable (7) rolls and cuts the material as it moves toward the edge of the metal mesh cover (3). The material does not fall and is still being polished in the metal mesh cover (3). After the material is thrown to the edge of the metal mesh cover (3), it is further polished and cut by the brush (8) on the side wall of the turntable (7) to refine the material. The polished and cut material is discharged into the circular granulation box (1) through the holes of the metal mesh cover (3).
2. The particle refinement device according to claim 1, characterized in that: The bottom outer wall of the circular granulation box (1) is fixedly provided with a motor mounting plate (17), and the inner wall of the motor mounting plate (17) is fixedly provided with a vibration motor (18).
3. The particle refinement device according to claim 1, characterized in that: The brush (8) is made of polytetrafluoroethylene material.
4. The particle refinement device according to claim 1, characterized in that: The circular granulation box (1) has a discharge port (15) on one side of its outer wall, and a discharge box (16) is fixedly provided on the inner wall of the discharge port (15).
5. The particle refinement device according to claim 1, characterized in that: The servo motor (13) and the vibration motor (18) are connected to a power switch via wires, and the power switch is connected to a power cord.
6. The particle refining apparatus according to any one of claims 1-5, characterized in that, It also includes the following steps: Step 1: When using, first discharge the abrasive media zirconium balls into the feeding pipe (6) through the feeding hopper (10), then discharge the granulated material into the feeding pipe (6) through the feeding hopper (10), drive the active pulley (14) to rotate through the output shaft of the servo motor (13), drive the driven pulley (11) to rotate through the belt strip (22), drive the feeding pipe (6) to rotate, and drive the turntable (7) and brush (8) to rotate on the inner wall of the metal mesh cover (3); Step 2: The abrasive medium and material are thrown out at the center of the metal mesh cover (3) through the rotating feed pipe (6). The centrifugal force causes the abrasive medium and material to be thrown to the edge of the metal mesh cover (3). The material is rolled and cut by the brush (8) at the bottom of the turntable (7). After the material is thrown to the edge of the metal mesh cover (3), it is further ground and cut by the brush (8) on the side wall of the turntable (7). This can refine the material. The ground and cut material is discharged into the circular granulation box (1) through the holes of the metal mesh cover (3). The resulting material particles are uniform and full, reducing the fluctuation range of the bulk density of the granules and achieving good granulation effect. Step 3: The particles thrown between the circular granulation box (1) and the metal mesh cover (3) need to be discharged. At this time, the vibration motor (18) fixed on the motor mounting plate (17) at the bottom of the circular granulation box (1) generates vibration. The particles in the circular granulation box (1) move towards the discharge port (15) through vibration and are discharged into the designated container through the discharge box (16).
Citation Information
Patent Citations
Granulation equipment for plastic product processing
CN113561356A
Granulating device for hippocampus electuary production
CN209317623U