Efficient granulator
By using a granulation unit with large and small conical blades rotating in opposite directions and a gear set for transmission, the problems of low efficiency and uneven particle size in existing granulators are solved, achieving efficient and uniform material crushing effect, and reducing production costs and operating difficulty.
Patent Information
- Application Number
- CN202520143975.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-01-22
AI Technical Summary
Existing granulators have low processing efficiency and produce uneven particle sizes, requiring repeated processing.
The pelletizing unit uses large and small conical blades rotating in opposite directions, combined with gear transmission, to achieve efficient shearing and uniform crushing of materials. The blade position can be adjusted by tightening the nut to accommodate wear.
It improves crushing efficiency and material particle size consistency, reduces production costs and operational difficulty, and enhances equipment stability and service life.
Smart Images
Figure CN223888148U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pharmaceutical equipment technology, specifically to a high-efficiency granulator. Background Technology
[0002] The main function of a granulator is to granulate materials, that is, to break up clumps of powder or granular materials into smaller particles or to crush larger particles into a specified particle size range to meet the requirements of the production process. In the existing technology, the blades used in granulators rotate in one direction, resulting in low efficiency and uneven application of shearing or impact forces to the materials. This often requires repeated processing to complete the processing of all materials, which is time-consuming and labor-intensive. Utility Model Content
[0003] This utility model discloses a high-efficiency granulator, which solves the technical problem of low processing efficiency in existing granulators. It features a reasonable structure, high processing efficiency, and facilitates the formation of finished materials with uniform particle size. The technical solution adopted is as follows:
[0004] A high-efficiency pelletizer includes a storage bin, a screen, and a pelletizing unit. The screen is funnel-shaped and located inside the storage bin, allowing the pelletized material to fall from the screen into the storage bin. The pelletizing unit includes a large conical blade and a small conical blade. The large conical blade extends into the screen and forms a pelletizing cavity with the screen. The small conical blade is fitted inside the large conical blade. The large and small conical blades can rotate in opposite directions under the action of an external drive unit.
[0005] Based on the above technical solution, the storage bin includes a storage bucket and a cover plate. The upper edge of the screen extends outward to form a wing plate. When the screen is fitted inside the storage bin, the upper edge of the storage bucket abuts against the wing plate to support the screen upward. The cover plate covers the screen.
[0006] Based on the above technical solution, the storage bin is provided with a feed inlet, which is connected upward to a funnel-shaped feed cylinder.
[0007] Based on the above technical solution, the drive unit includes an inner shaft and an outer shaft, which are rotatably connected to the storage bin. The inner shaft and the outer shaft are coaxially sleeved and can drive the large conical cutter and the small conical cutter respectively.
[0008] Based on the above technical solution, it also includes a first locking nut and a second locking nut. The large conical cutter is sleeved on the end of the inner shaft and can rotate synchronously with the inner shaft. The first locking nut is screwed to the end of the inner shaft and can abut against the large conical cutter upwards to limit the large conical cutter upwards. The small conical cutter is sleeved on the end of the outer shaft and can rotate synchronously with the outer shaft. The second locking nut is screwed to the end of the outer shaft and can abut against the small conical cutter upwards to limit the small conical cutter upwards.
[0009] Based on the above technical solution, the drive unit further includes a gear set, which includes a first bevel tooth, a second bevel tooth, and a third bevel tooth. The first bevel tooth is fixedly connected to the inner shaft, the second bevel tooth is fixedly connected to the outer shaft and is disposed opposite to the first bevel tooth, and the third bevel tooth meshes with the first bevel tooth and the second bevel tooth respectively to transmit the rotational motion to the first bevel tooth and the second bevel tooth.
[0010] Based on the above technical solution, an outer cylinder is fixed above the storage bin, the outer shaft is rotatably connected to the outer cylinder through a bearing, and the inner shaft is rotatably connected to the outer cylinder and / or the outer shaft through a bearing.
[0011] Based on the above technical solution, the outer shaft passes through the bottom surface of the outer cylinder and extends into the screen, and the outer shaft and the outer cylinder are fitted with a clearance. An annular wing plate is fixed on the outer wall surface of the outer shaft extending out of the outer cylinder. The annular wing plate is set near the bottom of the outer cylinder to prevent debris from entering the screen.
[0012] Based on the above technical solution, the large conical cutter includes a plurality of first blades evenly arranged in the circumferential direction, the lower part of the first blades is fixedly connected to the first connecting part by a plurality of ribs, and the inner shaft passes through the first connecting part and is fixedly connected to the first connecting part; the small conical cutter includes at least one second blade, the middle part of the second blade is fixedly connected to the second connecting part by a plurality of ribs, and the outer shaft passes through the second connecting part and is fixedly connected to the second connecting part.
[0013] Based on the above technical solution, it also includes a frame, the storage bin is located on the frame, and the drive unit also includes a motor, which is located in a cavity formed by the frame to isolate it from the storage bin.
[0014] Beneficial effects
[0015] This utility model has a reasonable structure, including a large conical blade and a small conical blade that are nested together. When the large conical blade and the small conical blade rotate in opposite directions, the large conical blade shears and crushes the material with the screen, while the small conical blade moves the material at the center of the screen, causing the material to flow outward under the action of centrifugal force. This improves the crushing efficiency and the consistency of the particle size of the crushed material.
[0016] This utility model also includes a first locking nut and a second locking nut, which can limit the movement of the large and small conical cutters, resulting in good structural stability. Moreover, when the large and small conical cutters are worn, their height positions can be adjusted by rotating the first and second locking nuts, making the operation flexible and the service life long.
[0017] In this invention, the reverse rotation of the inner and outer shafts is achieved by a gear set, which has a simple structure, low production cost, and good stability. In addition, the horizontal setting of the third conical tooth in the gear set helps to reduce the vertical space occupation and facilitates the layout.
[0018] In this invention, the motor of the drive unit is isolated from the storage bin, which helps to reduce air pollution sources. In addition, the outer shaft extends to the outer wall of the outer cylinder and is fixed with an annular wing plate, which reduces the probability of dust and impurities entering the storage bin and helps to improve the quality of finished products. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other embodiments can be derived from the provided drawings without creative effort.
[0020] Figure 1 : A three-dimensional structural schematic diagram of this utility model;
[0021] Figure 2 : A cross-sectional structural schematic diagram of the main view of this utility model;
[0022] Figure 3 : A three-dimensional structural diagram of the granulation unit and the driving unit after they are combined in this utility model; Detailed Implementation
[0023] The following description and accompanying drawings fully illustrate specific embodiments described herein to enable those skilled in the art to practice them. Some embodiments may include or substitute parts and features of other embodiments. The scope of the embodiments herein encompasses the entire scope of the claims and all available equivalents thereof. Throughout this document, the terms “first,” “second,” etc., are used only to distinguish one element from another without requiring or implying any actual relationship or order between the elements. Indeed, a first element can also be referred to as a second element, and vice versa. Furthermore, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a structure, apparatus, or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a structure, apparatus, or device. Without further limitation, an element defined by the phrase “comprising one…” does not exclude the presence of other identical elements in the structure, apparatus, or device that includes said element. The various embodiments described herein are presented in a progressive manner, with each embodiment focusing on its differences from other embodiments; similar or identical parts between embodiments can be referred to interchangeably.
[0024] The terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" used in this document to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings. They are used solely for the convenience of describing the document and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. In the description herein, unless otherwise specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two elements; they can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.
[0025] In this document, unless otherwise stated, the term "multiple" means two or more.
[0026] In this article, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.
[0027] In this article, the term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.
[0028] like Figures 1-3 The high-efficiency pelletizer shown includes a frame 9, a storage bin 1, a screen 2, a pelletizing unit and a drive unit 5.
[0029] The frame 9 is fixedly installed and encloses a chamber;
[0030] Storage bin 1 is located on the frame, such as Figure 1 As shown, the storage bin 1 includes a storage bucket 11 and a cover plate 12. The storage bucket 11 opens upwards, and the cover plate 12 is used to seal the storage bucket 11. The cover plate 12 of the storage bin 1 is provided with a feed inlet, which communicates upwards with the funnel-shaped feed cylinder 4 to guide the material into the cavity formed by the screen 2.
[0031] Screen 2 is funnel-shaped and located inside storage silo 1. The granulated material falls from screen 2 into storage silo 1. Figure 3 As shown, the upper edge of the screen 2 extends outward to form a wing plate 21. When the screen 2 is fitted inside the storage bin 1, the upper edge of the storage bin 11 abuts against the wing plate 21 to support the screen 2 upward. The cover plate 12 is placed on the screen 2, which can stabilize and fix the screen 2 on the one hand, and facilitate disassembly and cleaning on the other hand.
[0032] like Figure 3As shown, the granulation unit includes a large conical blade 31 and a small conical blade 32. The large conical blade 31 extends into the screen 2 and forms a granulation cavity with the screen 2. The outer edge of the large conical blade 31 is adapted to the screen 2. The large conical blade 31 includes a plurality of first blades 312 evenly arranged in the circumferential direction. The lower part of the first blades 312 is fixed to the first connecting part 311 by a plurality of ribs. The small conical blade 32 is sleeved inside the large conical blade 31. In this embodiment, the small conical blade 32 includes a second blade 322. The second blade 322 is arranged with the same taper as the large conical blade 31. The middle part of the second blade 322 is fixed to the second connecting part 321 by a rib. The large conical blade 32 and the small conical blade 31 can rotate in opposite directions under the action of the external driving unit 5.
[0033] like Figure 3 As shown, the drive unit 5 includes a motor, an inner shaft 51, an outer shaft 52, and a gear set 54. The outer shaft 52 is sleeved outside the inner shaft 51, and an outer cylinder 53 is sleeved on the outer shaft 52. The outer cylinder 53 is fixed on the frame 9 and is fixed downward to the cover plate 12. In this way, the storage bin 1 can be fixedly set. In this embodiment, the storage bucket 11 is suspended, which makes it easy to remove the storage bucket 11, so that the screen 2 and the storage bucket 11 are separated from the granulation unit. The operation is convenient, time-saving and labor-saving.
[0034] In addition, the motor is located in a cavity formed by the frame 9 to isolate it from the storage bin 1.
[0035] like Figure 2 As shown, the outer shaft 52 is rotatably connected to the outer cylinder 53 via two bearings arranged vertically. The inner shaft 51 is coaxially sleeved inside the outer shaft 52 and is rotatably connected to both the outer cylinder 53 and the outer shaft 52 via two bearings, thus improving stability during rotation. In other embodiments of the present invention, the inner shaft 51 may also be rotatably connected to the outer shaft 52 via two bearings.
[0036] like Figure 2 As shown, the inner shaft 51 passes through the outer shaft 52 and extends out of the outer shaft 52. Then, the inner shaft 51 passes through the first connecting part 311 of the large conical knife 31 and is fixedly connected to the first connecting part 311. The outer shaft 52 passes through the bottom surface of the outer cylinder 53 and extends into the screen 2. Then, the outer shaft 52 passes through the second connecting part 321 of the small conical knife 32 and is fixedly connected to the second connecting part 321. The outer shaft 52 and the bottom surface of the outer cylinder 53 are clearance-fitted. An annular wing plate is fixed on the outer wall of the bottom surface of the outer shaft 52 extending out of the outer cylinder 53. The annular wing plate is set near the bottom of the outer cylinder 53 to prevent debris from entering the screen 2, which is beneficial to the quality of the finished product.
[0037] The gear set 54 includes a first conical tooth 541, a second conical tooth 542, and a third conical tooth 543. The first conical tooth 541 is coaxially fixed to the inner shaft 51. The second conical tooth 542 is coaxially fixed to the outer shaft 52 and is arranged opposite to the first conical tooth 541. The third conical tooth 543 meshes with the first conical tooth 541 and the second conical tooth 542 respectively to transmit the rotational motion to the first conical tooth 541 and the second conical tooth 542. In this embodiment, the motor is fixed in a cavity formed by the frame 1. The output shaft of the motor can transmit the rotational motion to the third conical tooth 543, thus driving the first conical tooth 541 and the second conical tooth 542 to rotate at the same speed and in opposite directions. In this way, the large conical knife 31 cuts and crushes the material with the screen 2, and the small conical knife 32 moves the material at the center of the screen 2, causing the material to flow rapidly to the outer periphery under the action of centrifugal force. This improves the crushing efficiency and the consistency of the particle size of the crushed material; moreover, it simplifies the structure and helps to reduce the production and manufacturing costs.
[0038] In addition, it includes a first locking nut 6 and a second locking nut 7. The large conical cutter 31 is sleeved on the end of the inner shaft 51 and can rotate synchronously with the inner shaft 51. The first locking nut 6 is screwed to the end of the inner shaft 51 and can abut against the large conical cutter 31 upwards to limit the large conical cutter 31. The small conical cutter 32 is sleeved on the end of the outer shaft 52 and can rotate synchronously with the outer shaft 52. The second locking nut 7 is screwed to the end of the outer shaft 52 and can abut against the small conical cutter 32 upwards to limit the small conical cutter 32. On the one hand, the gap between the large conical knife 31 and the screen 2 can be adjusted by rotating the first locking nut 6, and the gap between the small conical knife 32 and the large conical knife 31 can be adjusted by rotating the second locking nut 7. This makes assembly and debugging convenient and saves time and effort. On the other hand, when the outer edge of the large conical knife 31 or the small conical knife 32 is worn and the thickness of the knife is reduced, the height position of the large conical knife 31 or the small conical knife 32 can also be adjusted by rotating the first locking nut 6 or the second locking nut 7. This provides good flexibility and helps to improve the service life of the pellet mill.
[0039] The present invention has been described above by way of example, but the present invention is not limited to the specific embodiments described above. Any modifications or variations made based on the present invention shall fall within the scope of protection claimed by the present invention.
Claims
1. A high-efficiency granulator, characterized in that, The device includes a storage bin (1), a screen (2), and a pelletizing unit. The screen (2) is funnel-shaped and located inside the storage bin (1), allowing the pelletized material to fall from the screen (2) into the storage bin (1). The pelletizing unit includes a large conical knife (31) and a small conical knife (32). The large conical knife (31) extends into the screen (2) and forms a pelletizing cavity with the screen (2). The small conical knife (32) is fitted inside the large conical knife (31). The large conical knife (31) and the small conical knife (32) can rotate in opposite directions under the action of an external drive unit (5).
2. The high-efficiency granulator according to claim 1, characterized in that, The storage bin (1) includes a storage bucket (11) and a cover plate (12). The upper edge of the screen (2) extends outward to form a wing plate (21). When the screen (2) is fitted inside the storage bin (1), the upper edge of the storage bucket (11) abuts against the wing plate (21) to support the screen (2) upward. The cover plate (12) covers the screen (2).
3. The high-efficiency granulator according to claim 1, characterized in that, The storage bin (1) is provided with a feed inlet, which is connected to the funnel-shaped feed cylinder (4) upwards.
4. The high-efficiency granulator according to any one of claims 1 to 3, characterized in that, The drive unit (5) includes an inner shaft (51) and an outer shaft (52). The inner shaft (51) and the outer shaft (52) are rotatably connected to the storage bin (1). The inner shaft (51) and the outer shaft (52) are coaxially sleeved and can drive the large conical cutter (31) and the small conical cutter (32) respectively.
5. The high-efficiency granulator according to claim 4, characterized in that, It also includes a first locking nut (6) and a second locking nut (7). The large conical cutter (31) is sleeved on the end of the inner shaft (51) and can rotate synchronously with the inner shaft (51). The first locking nut (6) is screwed to the end of the inner shaft and can abut against the large conical cutter (31) upwards to limit the large conical cutter (31). The small conical cutter (32) is sleeved on the end of the outer shaft (52) and can rotate synchronously with the outer shaft (52). The second locking nut (7) is screwed to the end of the outer shaft (52) and can abut against the small conical cutter (32) upwards to limit the small conical cutter (32).
6. The high-efficiency granulator according to claim 5, characterized in that, The drive unit (5) further includes a gear set (54), which includes a first bevel tooth (541), a second bevel tooth (542), and a third bevel tooth (543). The first bevel tooth (541) is fixedly connected to the inner shaft (51), the second bevel tooth (542) is fixedly connected to the outer shaft (52) and is disposed opposite to the first bevel tooth (541), and the third bevel tooth (543) meshes with the first bevel tooth (541) and the second bevel tooth (542) respectively to transmit rotational motion to the first bevel tooth (541) and the second bevel tooth (542).
7. The high-efficiency granulator according to claim 5 or 6, characterized in that, An outer cylinder (53) is fixed above the storage bin (1). The outer shaft (52) is rotatably connected to the outer cylinder (53) through a bearing. The inner shaft (51) is rotatably connected to the outer cylinder (53) and / or the outer shaft (52) through a bearing.
8. The high-efficiency granulator according to claim 7, characterized in that, The outer shaft (52) passes through the bottom surface of the outer cylinder (53) and extends into the screen (2). The outer shaft (52) and the outer cylinder (53) are in clearance fit. The outer shaft (52) extends out to the outer wall surface of the outer cylinder (53) and is fixed with an annular wing plate. The annular wing plate is set near the bottom of the outer cylinder (53) to prevent debris from entering the screen (2).
9. The high-efficiency granulator according to claim 7, characterized in that, The large conical cutter (31) includes a plurality of first blades (312) evenly arranged in the circumference. The lower part of the first blade (312) is fixed to the first connecting part (311) by a plurality of ribs. The inner shaft (51) passes through the first connecting part (311) and is fixed to the first connecting part (311). The small conical cutter (32) includes at least one second blade (322). The middle part of the second blade (322) is fixed to the second connecting part (321) by a plurality of ribs. The outer shaft (52) passes through the second connecting part (321) and is fixed to the second connecting part (321).
10. The high-efficiency granulator according to claim 8 or 9, characterized in that, It also includes a frame (9), and the drive unit (5) also includes a motor, which is located in a cavity formed by the frame (9) to isolate it from the storage bin (1).