Centrifugal granulation apparatus

Abstract

The utility model relates to centrifugal granulating equipment technical field, and disclose a kind of adjustable centrifugal granulating equipment of particle size, including base, the upper end of base is fixedly installed with driving motor, and the upper end of base is fixedly installed with machine case on one side, the upper end of machine case is fixedly installed with granulating cylinder, and the right side outer wall of granulating cylinder is equipped with discharge plate.The centrifugal granulating equipment of adjustable particle size, by adopting the design of fixed disc and the design of two adjusting disc superposition, and setting up three kinds of specifications filter hole of big, medium and small on each disc respectively, the relative rotation angle between adjusting disc is accurately controlled by driving assembly, i.e. the coincident area of three layers filter hole can be changed, so that the stepless continuous adjustment of particle size between maximum and minimum aperture is realized;This method overcomes the complexity and discreteness of traditional filter disc replacement method, can flexibly adapt to the particle size specification requirement of different materials, significantly improves the versatility of equipment and product adaptability.

Description

Technical Field

[0001] This utility model relates to the technical field of centrifugal granulation equipment, specifically to a centrifugal granulation equipment with adjustable particle size. Background Technology

[0002] Centrifugal granulation equipment is a key device used in industries such as chemical, pharmaceutical, and food processing to produce granules of specific sizes from powdered or slurry materials. Its basic principle is to force the material through a screen or filter plate with fixed apertures using a high-speed rotating component, thereby cutting and shaping it into uniform granules. The particle size is one of the core parameters determining key indicators such as product quality, dissolution rate, and tableting performance.

[0003] In existing technologies, most traditional centrifugal granulation equipment uses screens or filter discs with fixed apertures. When different sizes of granules need to be produced, the machine must be stopped and screens or filter discs with different apertures must be replaced. This operation is not only time-consuming and labor-intensive, reducing production efficiency and increasing the labor intensity of workers, but also easily causes cross-contamination of materials during the replacement process. This is particularly unfavorable for industries that require strict batch separation (such as pharmaceuticals). Therefore, we propose a centrifugal granulation equipment with adjustable particle size to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a centrifugal granulation device with adjustable particle size, solving the problems mentioned in the background art.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a centrifugal granulation device with adjustable particle size, including a base, a drive motor fixedly installed at the upper end of the base, and a machine box fixedly installed on one side of the upper end of the base. A granulation cylinder is fixedly installed at the upper end of the machine box, and a discharge plate is provided on the right outer wall of the granulation cylinder. A rotating shaft is rotatably connected inside the granulation cylinder. A filter disc structure is provided on the outer wall of the rotating shaft inside the granulation cylinder, and a guide plate and a cutting plate are spaced apart along the axial direction on the outer wall of the rotating shaft. The filter disc structure includes a fixed disc, the outer wall of which is fixedly installed on the inner wall of the granulation cylinder. The upper surface of the fixed disc is connected to an adjusting disc one and an adjusting disc two in sequence through an annular sliding groove, and the lower surface of the adjusting disc two is in contact with the upper surface of the adjusting disc one. The fixed disk, the first adjusting disk, and the second adjusting disk are each provided with a number of large filter holes arranged in a ring and uniformly. The first adjusting disk and the second adjusting disk are provided with medium filter holes between two adjacent large filter holes. The second adjusting disk is provided with small filter holes between the medium filter holes and the large filter holes. The outer wall of the granulation cylinder is fixed with an adjustment drive assembly for driving the first adjustment disk and the second adjustment disk to rotate, and the fixed disk is provided with a magnetic positioning assembly for positioning the first adjustment disk and the second adjustment disk.

[0006] Furthermore, the magnetic positioning component includes an arc-shaped groove, a magnetic component, and a magnetic component. The outer wall of the fixed disk has an arc-shaped groove that communicates with the annular sliding groove. The outer walls of the adjusting disk and the adjusting disk are respectively fixedly connected along the circumferential direction to an arc-shaped toothed rack and an arc-shaped toothed rack, which are slidably adapted to the arc-shaped groove. The bottom of the inner wall of the arc-shaped groove is fixedly connected to a magnetic component. An electromagnet is fixedly installed at the bottom of the arc-shaped toothed rack near the magnetic component. The top of the inner wall of the arc-shaped groove is fixedly connected to a magnetic component. An electromagnet is fixedly installed at the top of the arc-shaped toothed rack near the magnetic component. When the electromagnets are energized, they magnetically attract the magnetic components to achieve the positioning of the adjusting disks.

[0007] Furthermore, the adjustment drive assembly includes a mounting plate; the outer wall of the granulation cylinder has an arc-shaped groove two that communicates with the arc-shaped groove one, and the mounting plate is fixedly connected to the outer wall of the granulation cylinder below the arc-shaped groove two. A forward and reverse motor is fixedly connected to the mounting plate, and a connecting shaft is fixedly connected to the output end of the forward and reverse motor. A rotating wheel is fixedly connected to the end of the connecting shaft away from the forward and reverse motor. The rotating wheel can selectively mesh with either the arc-shaped toothed rack one or the arc-shaped toothed rack two.

[0008] Furthermore, two lever blocks are symmetrically fixedly connected to the outer wall of the rotating wheel, and a lever block is fixedly connected below the lever block on the left side of the outer wall of the rotating wheel to limit the range of movement of the rotating wheel.

[0009] Furthermore, the interiors of the fixed disk, adjusting disk one, and adjusting disk two are rotatably connected to the rotating shaft via fixedly installed bearings.

[0010] Furthermore, the guide plate is fixed to the outer wall of the rotating shaft at an incline, and the incline of the guide plate faces the discharge plate; the cutting plate is fixed to the outer wall of the rotating shaft and located between the guide plate and the filter disc structure. The cutting plate has an arc-shaped structure, and a blade is fixedly installed on the lower surface of the cutting plate. The blade faces the same direction as the rotation of the rotating shaft. Two pressure rollers are rotatably connected to the top outer wall of the rotating shaft through a fixed shaft, and the outer walls of the two pressure rollers are in contact with the upper surface of the second adjusting disc. The machine housing has a cavity inside, and the transmission mechanism between the drive motor and the rotating shaft is accommodated in the cavity.

[0011] The beneficial effects of this utility model are: 1. This centrifugal granulation equipment with adjustable particle size adopts a design of a fixed disc and two adjusting discs stacked together, with large, medium and small filter holes set on each disc. By precisely controlling the relative rotation angle between the adjusting discs through the drive component, the overlapping area of ​​the three layers of filter holes can be changed, thereby achieving stepless continuous adjustment of particle size between the maximum and minimum pore size. This method overcomes the cumbersome and discrete nature of traditional filter disc replacement methods, can flexibly adapt to the particle size requirements of different materials, and significantly improves the versatility of the equipment and the adaptability of products.

[0012] 2. This centrifugal granulation equipment with adjustable particle size utilizes a locking method based on magnetic positioning components (electromagnets and magnetic parts) to quickly and reliably fix the adjusting disc in the target position after adjustment. This effectively prevents the disc from shifting due to vibration during high-speed operation, ensuring the stability of particle size parameters during production. Combined with an external, limit-protected adjustment drive component, the rotating wheel is driven by a forward and reverse motor, and its movement range is limited by a lever, achieving precise engagement and drive with the arc-shaped toothed racks on different adjusting discs. This structure cleverly reuses one drive source for two adjusted objects and ensures the accuracy of the engagement position through mechanical limits. This not only simplifies the transmission structure and reduces manufacturing costs but also automates and ensures the reliability of the particle size adjustment process, effectively avoiding misoperation. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the structure of this utility model; Figure 3 This is a partial cross-sectional view of the granulation cylinder structure of this utility model; Figure 4 This is a cross-sectional view of the granulation cylinder structure of this utility model; Figure 5 This is a cross-sectional view of the filter disc structure of this utility model; Figure 6 This utility model Figure 4 Enlarged schematic diagram of the structure at point A in the middle; Figure 7 This utility model Figure 4 Enlarged schematic diagram of the structure at point B.

[0015] Explanation of reference numerals in the attached drawings: 1. Base; 11. Drive motor; 12. Chassis; 2. Granulation cylinder; 21. Arc groove II; 22. Mounting plate; 23. Forward and reverse motor; 24. Connecting shaft; 25. Rotary wheel; 26. Pulley I; 27. Pulley II; 3. Discharge plate; 4. Rotating shaft; 5. Guide plate; 6. Cutting plate; 7. Filter disc structure; 71. Fixed disc; 72. Adjusting disc I; 73. Adjusting disc II; 74. Large filter hole; 75. Medium filter hole; 76. Small filter hole; 77. Arc groove I; 771. Magnetic component I; 772. Magnetic component II; 78. Arc toothed rack I; 79. Electromagnet I; 710. Arc toothed rack II; 711. Electromagnet II; 8. Pressure roller. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0017] Please see Figures 1-7 A centrifugal granulation device with adjustable particle size includes a base 1, a drive motor 11 fixedly installed at the upper end of the base 1, and a housing 12 fixedly installed on one side of the upper end of the base 1. A granulation cylinder 2 is fixedly installed at the upper end of the housing 12, and a discharge plate 3 is provided on the outer wall of the right side of the granulation cylinder 2. A rotating shaft 4 is rotatably connected inside the granulation cylinder 2. A filter disc structure 7 is provided on the outer wall of the rotating shaft 4 inside the granulation cylinder 2, and a guide plate 5 and a cutting plate 6 are spaced apart along the axial direction on the outer wall of the rotating shaft 4. The filter disc structure 7 includes a fixed disc 71. The outer wall of the fixed disc 71 is fixedly installed on the inner wall of the granulation cylinder 2. The upper surface of the fixed disc 71 is movably connected to the first adjustment disc 72 and the second adjustment disc 73 in sequence through an annular sliding groove. The lower surface of the second adjustment disc 73 is in contact with the upper surface of the first adjustment disc 72. The fixed disc 71, the first adjustment disc 72 and the second adjustment disc 73 are respectively provided with a number of large filter holes 74 arranged in a ring. The first adjustment disc 72 and the second adjustment disc 73 are respectively provided with medium filter holes 75 between two adjacent large filter holes 74. The second adjustment disc 73 is provided with small filter holes 76 between the medium filter holes 75 and the large filter holes 74. The outer wall of the granulation cylinder 2 is fixed with an adjustment drive assembly for driving the first adjustment disc 72 and the second adjustment disc 73 to rotate. The fixed disc 71 is provided with a magnetic positioning assembly for positioning the first adjustment disc 72 and the second adjustment disc 73.

[0018] In this embodiment, the stacked design of fixed disk 71, adjusting disk one 72, and adjusting disk two 73, with large filter holes 74, medium filter holes 75, and small filter holes 76 respectively, allows the degree of overlap of the filter holes to be changed by rotating the adjusting disks relative to each other, thereby continuously adjusting the effective filter hole size and achieving precise control of the granulation particle size. This structure not only improves the flexibility and adaptability of the equipment to meet the production needs of different particle size specifications, but also has a compact overall layout, is easy to operate, and significantly improves the control range and efficiency of the granulation process.

[0019] Reference Figures 2-7 As shown, the magnetic positioning assembly includes an arc-shaped groove 77, a magnetic component 771, and a magnetic component 772. The outer wall of the fixed disk 71 has an arc-shaped groove 77 that communicates with the annular sliding groove. The outer walls of the adjusting disk 72 and the adjusting disk 73 are respectively fixedly connected along the circumferential direction to arc-shaped toothed racks 78 and 710, which are slidably adapted to the arc-shaped groove 77. A magnetic component 771 is fixedly connected to the bottom of the inner wall of the arc-shaped groove 77, and the arc-shaped toothed rack 78 is close to the magnetic component. An electromagnet 79 is fixedly installed at one end of the bottom of component 771. A magnetic component 772 is fixedly connected to the top of the inner wall of the arc-shaped groove 77. An electromagnet 711 is fixedly installed at the top of the end of the arc-shaped toothed rack 710 near the magnetic component 772. When electromagnets 79 and 711 are energized, they magnetically attract each other to the magnetic components 771 and 772 respectively, which is used to position the adjustment disk 72 and the adjustment disk 73.

[0020] In this embodiment, the magnetic positioning component utilizes the magnetic attraction between the electromagnet and the magnetic component to achieve rapid locking and unlocking of adjustment disk 1 72 and adjustment disk 2 73. When the electromagnet is energized, it generates magnetic force and attracts the magnetic component, ensuring that the adjustment disk is firmly fixed in the set position, preventing misalignment due to vibration or inertia during equipment operation, thereby ensuring the accuracy and stability of particle size adjustment. This design is responsive, reliable in locking, and requires no mechanical contact, reducing wear and noise and extending service life.

[0021] Reference Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 7 As shown, the adjustment drive assembly includes a mounting plate 22; the outer wall of the granulation cylinder 2 is provided with an arc-shaped groove 21 that communicates with the arc-shaped groove 77, the outer wall of the granulation cylinder 2 is fixedly connected to the mounting plate 22 below the arc-shaped groove 21, a forward and reverse motor 23 is fixedly connected to the mounting plate 22, the output end of the forward and reverse motor 23 is fixedly connected to a connecting shaft 24, and a rotating wheel 25 is fixedly connected to the end of the connecting shaft 24 away from the forward and reverse motor 23; the rotating wheel 25 can selectively mesh with the arc-shaped toothed rack 78 or the arc-shaped toothed rack 710.

[0022] In this embodiment, the adjustment drive assembly drives the connecting shaft 24 via the forward and reverse motor 23 to rotate the rotating wheel 25. The rotating wheel 25 engages with the arc-shaped toothed rack 78 or the arc-shaped toothed rack 710 via a limiting mechanism, thereby driving the adjustment disk 72 or the adjustment disk 73 to rotate precisely. This drive method has a simple structure, direct transmission, and allows for remote control of the adjustment process, improving the convenience and automation of operation. The mounting plate 22 provides a stable support for the drive assembly, ensuring smooth transmission, avoiding jamming or deviation during the adjustment process, and realizing the fine-tuning function of particle size.

[0023] Reference Figure 3 , Figure 5 and Figure 7 As shown, two toggle blocks 26 are symmetrically fixedly connected to the outer wall of the rotating wheel 25. Toggle block 27 is fixedly connected below the toggle block 26 on the left side of the outer wall of the rotating wheel 25 to limit the movement range of the rotating wheel 25.

[0024] In this embodiment, the first toggle block 26 and the second toggle block 27 on the rotating wheel 25 serve as limiting mechanisms to effectively constrain the rotation angle of the rotating wheel 25 and prevent excessive rotation of the rotating wheel from causing the adjustment disc to overtravel or be damaged. The first toggle block 26 is symmetrically arranged to ensure that the rotating wheel is restricted in both forward and reverse rotation, while the second toggle block 27 further refines the limiting range, improving the accuracy and safety of the adjustment. This design avoids equipment failure caused by misoperation and ensures the reliability and repeatability of the adjustment process.

[0025] Reference Figure 4 and Figure 5 As shown, the interiors of the fixed disk 71, the first adjusting disk 72, and the second adjusting disk 73 are rotatably connected to the rotating shaft 4 via fixedly installed bearings.

[0026] In this embodiment, the fixed disk 71, the first adjusting disk 72, and the second adjusting disk 73 are rotatably connected to the rotating shaft 4 through bearings, so that the rotating shaft 4 can rotate at high speed under the drive of the drive motor 11, while the filter disk structure 7 remains relatively independent, which can rotate according to the adjustment requirements without interfering with the main movement of the rotating shaft 4; the bearing connection reduces frictional resistance, improves transmission efficiency, and ensures the concentricity and stability of the rotating shaft 4, thereby ensuring that the material passes through the filter holes evenly during the granulation process and improving the consistency of particle quality.

[0027] Reference Figure 1 and Figure 2As shown, the guide plate 5 is fixed to the outer wall of the rotating shaft 4 in an inclined shape, and the inclined direction of the guide plate 5 is towards the discharge plate 3; the cutting plate 6 is fixed to the outer wall of the rotating shaft 4 and is located between the guide plate 5 and the filter plate structure 7. The cutting plate 6 has an arc-shaped structure, and the lower surface of the cutting plate 6 is fixedly installed with a blade. The blade faces the same direction as the rotation of the rotating shaft 4. The top outer wall of the rotating shaft 4 is rotatably connected to two pressure rollers 8 through a fixed shaft, and the outer walls of the two pressure rollers 8 are in contact with the upper surface of the adjustment plate 73; the machine housing 12 has a cavity inside, and the transmission mechanism between the drive motor 11 and the rotating shaft 4 is accommodated in the cavity; the outer surface of the drive motor 11 near the machine housing 12 is movably installed with a shaft, and the outer surface of the shaft is provided with helical teeth. The machine housing 12 is movably installed with a gear, and the rotating shaft 4 is fixedly installed at the middle position of the upper outer surface of the gear. The gear and the shaft mesh with each other.

[0028] In this embodiment, the inclined design of the guide plate 5 guides the material to flow along a predetermined path to the discharge plate 3, optimizing the material flow efficiency; the arc-shaped structure and blade of the cutting plate 6 shear and crush the material when rotating, promoting particle formation; the pressure roller 8 contacts the upper surface of the regulating plate 73, applying pressure to the material and enhancing the density and uniformity of the particles; the gear transmission mechanism inside the housing 12 efficiently transmits the power of the drive motor 11 to the rotating shaft 4, ensuring stable equipment operation; the overall structure works synergistically to improve the production efficiency and product quality of granulation, while reducing energy consumption and maintenance requirements.

[0029] When using the device, determine the target particle size: Based on production requirements, determine the required particle size, and calculate the size and shape of the openings of the large filter holes 74, medium filter holes 75, and small filter holes 76 on the fixed disk 71, adjusting disk one 72, and adjusting disk two 73 that need to overlap; start the adjustment drive assembly: start the forward and reverse motor 23, which drives the rotating wheel 25 to rotate through the connecting shaft 24, so that the first and second paddles 27 on the rotating wheel 25 engage with the arc-shaped toothed rack one 78 (for adjusting disk one 72) or the arc-shaped toothed rack two 710 (for adjusting disk two 73) corresponding to the disk to be adjusted; the first and second paddles 27 ensure that the rotating wheel 25 moves precisely to the predetermined engagement position. Setting; Deactivating magnetic positioning: Before rotating the adjustment disc, ensure that the electromagnet (electromagnet 1 79 or electromagnet 2 711) corresponding to the target adjustment disc is de-energized, and release the magnetic lock with magnetic component 1 771 or magnetic component 2 772, so that the adjustment disc can rotate freely; Driving disc rotation: The forward and reverse motor 23 rotates in a predetermined direction and angle, driving the corresponding adjustment disc (adjustment disc 1 72 or adjustment disc 2 73) to rotate relative to the fixed disc 71 through the toggle block 1 26 and toggle block 27 on the rotating wheel 25 and the arc-shaped toothed rack; Achieving aperture adjustment: The rotation of the adjustment disc changes the relative aperture between the filter holes of different specifications on the three-layer disc body. Position and overlap; by precisely controlling the rotation angle, an effective filter pore size that continuously varies from the smallest (small filter holes 76 completely overlap) to the largest (large filter holes 74 completely overlap) can be obtained; Magnetic locking positioning: when the adjusting disc rotates to the target position, the corresponding electromagnet is immediately energized, so that it generates a strong magnetic attraction with the magnetic component on the fixed disc 71, thereby firmly locking the adjusting disc in the current position and preventing displacement due to vibration during subsequent granulation; after the particle size is set, the equipment enters continuous granulation production; the wet material or soft material to be granulated is fed from the top of the granulation cylinder 2; the drive motor 11 is started; the drive motor 11. Power is transmitted to the rotating shaft 4 through the transmission mechanism (such as a gear set) inside the housing 12, causing it to rotate at high speed inside the granulation cylinder 2. Under the action of centrifugal force, the cut material is thrown onto the surface of the filter disc structure 7. At the same time, two pressure rollers 8 installed at the top of the rotating shaft 4 rotate with the shaft and roll on the upper surface of the adjusting disc 73, applying rolling pressure to the material and assisting it to pass through the filter holes with the adjusted aperture. Qualified wet granules are squeezed out of the filter holes under the action of centrifugal force and pressure rollers. The granules squeezed out of the filter holes fall into the lower part of the granulation cylinder 2 and are discharged from the equipment from the discharge plate 3 under the action of centrifugal force or other guiding devices, completing the granulation process.

[0030] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A centrifugal granulation device with adjustable particle size, comprising a base (1), wherein a drive motor (11) is fixedly installed on the upper end of the base (1), and a housing (12) is fixedly installed on one side of the upper end of the base (1), wherein a granulation cylinder (2) is fixedly installed on the upper end of the housing (12), and a discharge plate (3) is provided on the outer right side of the granulation cylinder (2), characterized in that: The granulation cylinder (2) is rotatably connected to a rotating shaft (4). The outer wall of the rotating shaft (4) inside the granulation cylinder (2) is provided with a filter plate structure (7), and the outer wall of the rotating shaft (4) is provided with a guide plate (5) and a cutting plate (6) at intervals along the axial direction. The filter disc structure (7) includes a fixed disc (71), the outer wall of the fixed disc (71) is fixedly installed on the inner wall of the granulation cylinder (2), and the upper surface of the fixed disc (71) is connected to the first adjustment disc (72) and the second adjustment disc (73) in sequence through an annular sliding groove, and the lower surface of the second adjustment disc (73) is in contact with the upper surface of the first adjustment disc (72). The fixed disk (71), the first adjusting disk (72) and the second adjusting disk (73) are respectively provided with a number of large filter holes (74) arranged in a ring evenly. The first adjusting disk (72) and the second adjusting disk (73) are respectively provided with medium filter holes (75) between two adjacent large filter holes (74). The second adjusting disk (73) is provided with small filter holes (76) between the medium filter holes (75) and the large filter holes (74). The outer wall of the granulation cylinder (2) is fixed with an adjustment drive assembly for driving the first adjustment disk (72) and the second adjustment disk (73) to rotate. The fixed disk (71) is provided with a magnetic positioning assembly for positioning the first adjustment disk (72) and the second adjustment disk (73).

2. The apparatus according to claim 1, wherein: The magnetic positioning assembly includes an arc-shaped groove (77), a magnetic component (771), and a magnetic component (772). The outer wall of the fixed disk (71) is provided with an arc-shaped groove (77) that communicates with the annular sliding groove. The outer walls of the adjusting disk (72) and the adjusting disk (73) are respectively fixedly connected along the circumferential direction with an arc-shaped toothed rack (78) and an arc-shaped toothed rack (710) that are slidably adapted to the arc-shaped groove (77). The bottom of the inner wall of the arc-shaped groove (77) is fixedly connected with a magnetic component (771). The arc-shaped toothed rack (78) is close to the magnetic component. Electromagnet 1 (79) is fixedly installed at one end of component 1 (771). Magnetic component 2 (772) is fixedly connected to the top of the inner wall of the arc-shaped groove 1 (77). Electromagnet 2 (711) is fixedly installed at the top of one end of the arc-shaped toothed bar 2 (710) near magnetic component 2 (772). When electromagnet 1 (79) and electromagnet 2 (711) are energized, electromagnet 1 (79) and electromagnet 2 (711) are magnetically attracted to magnetic component 1 (771) and magnetic component 2 (772) respectively, which is used to realize the positioning of adjustment disk 1 (72) and adjustment disk 2 (73).

3. A centrifugal granulation apparatus capable of adjusting particle size according to claim 2, characterized in that: The adjustment drive assembly includes a mounting plate (22); the outer wall of the granulation cylinder (2) is provided with an arc groove two (21) that communicates with the arc groove one (77), the outer wall of the granulation cylinder (2) is fixedly connected to the mounting plate (22) below the arc groove two (21), a forward and reverse motor (23) is fixedly connected to the mounting plate (22), the output end of the forward and reverse motor (23) is fixedly connected to a connecting shaft (24), and a rotating wheel (25) is fixedly connected to the end of the connecting shaft (24) away from the forward and reverse motor (23); the rotating wheel (25) can selectively mesh with the arc meshing rack one (78) or the arc meshing rack two (710).

4. A centrifugal granulation apparatus capable of adjusting particle size according to claim 3, wherein: Two lever blocks (26) are symmetrically fixedly connected to the outer wall of the rotating wheel (25). A lever block (27) is fixedly connected below the lever block (26) on the left side of the outer wall of the rotating wheel (25) to limit the movement range of the rotating wheel (25).

5. The apparatus of claim 1, wherein: The interior of the fixed disk (71), the first adjusting disk (72) and the second adjusting disk (73) are rotatably connected to the rotating shaft (4) through fixedly installed bearings.

6. The apparatus of claim 1, wherein: The guide plate (5) is fixed to the outer wall of the rotating shaft (4) in an inclined manner, and the inclined direction of the guide plate (5) is towards the discharge plate (3); the cutting plate (6) is fixed to the outer wall of the rotating shaft (4) and is located between the guide plate (5) and the filter plate structure (7). The cutting plate (6) has an arc-shaped structure, and a blade is fixedly installed on the lower surface of the cutting plate (6). The blade is aligned with the rotation direction of the rotating shaft (4). The top outer wall of the rotating shaft (4) is rotatably connected to two pressure rollers (8) through a fixed shaft, and the outer walls of the two pressure rollers (8) are in contact with the upper surface of the adjustment plate (73); the machine box (12) has a cavity inside, and the transmission mechanism between the drive motor (11) and the rotating shaft (4) is accommodated in the cavity.

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