A continuous granulating device for powder
Patent Information
- Application Number
- CN202522615748.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-10
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-10
AI Technical Summary
Existing granulation equipment is not convenient for adjusting the granulation diameter and for crushing powder agglomerates, which affects the granulation quality.
A continuous powder granulation device was designed, comprising a mixing component, a crushing box, a sieving component, and an adjustable extrusion plate. The mixing component ensures the uniformity of the raw materials, the crushing box refines the powder, the sieving component screens qualified particles, and the extrusion plate is adapted to different particle size requirements.
It achieves uniformity of granulation particle size and improves quality. The mixing, crushing and sieving processes ensure the forming quality of the powder and adapt to the production needs of different particle sizes.
Smart Images
Figure CN224926059U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of granulation equipment technology, specifically a continuous powder granulation device. Background Technology
[0002] Western medicines are generally made by chemical synthesis or extracted from natural products; including aspirin, penicillin, analgesics, etc. Western medicines are organic chemical drugs, inorganic chemical drugs and biological products. Granulation technology has been widely used in the pharmaceutical, food and other industries. At present, granulation machines are indispensable in the preparation and production of Western medicines.
[0003] Most existing granulation devices are not convenient for adjusting the diameter of the granules as needed, and are not convenient for crushing agglomerated powders, thus affecting the quality of granulation.
[0004] To address the aforementioned problems, a continuous powder granulation device is proposed. Utility Model Content
[0005] The purpose of this invention is to provide a continuous powder granulation device, which solves the problem that most existing granulation devices in the background art are inconvenient to adjust the diameter of the granules as needed, and are not convenient to crush agglomerated powders, thus affecting the quality of granulation.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a continuous powder granulation device, comprising a conveying cylinder, a rotating shaft passing through and rotatably connected inside the conveying cylinder, a spiral pusher plate fixedly connected to the outer ring of the rotating shaft, a plurality of grooved columns fixedly connected to the outer ring of the right side of the conveying cylinder, a bidirectional threaded rod passing through and rotatably connected inside the grooved columns, clamping arms threadedly connected to both sides of the outer ring of the bidirectional threaded rod, insert blocks fixedly connected to the inner side of the clamping arms, an extrusion plate disposed on the right side of the conveying cylinder, a plurality of mounting blocks fixedly connected to the outer side of the extrusion plate, the mounting blocks being disposed between two clamping arms, and the mounting blocks having two... Slots are provided on both sides. A second motor is fixedly connected to the front end of the conveying cylinder. A screening component is provided on the lower right side of the conveying cylinder. A mixing component is installed on the top of the conveying cylinder. A feeding cylinder is connected to the outside of the mixing component. A crushing box is fixedly connected to the top of the feeding cylinder. Two rotating rods are rotatably connected through the crushing box. A crushing roller is fixedly connected to the outer ring of the rotating rod. Gears are fixedly connected to the front end of the outer ring of both rotating rods. A fourth motor is fixedly connected to the front end of the crushing box, and the output end of the fourth motor is fixedly connected to the rotating rod on the right side. A bracket is fixedly connected to both the bottom of the crushing box and the bottom of the conveying cylinder.
[0007] By adopting the above technical solution, rotating the knob drives the bidirectional threaded rod to rotate, causing the insert block to disengage from the slot of the mounting block, thus removing the extrusion plate; after replacing the extrusion plate with the corresponding die hole specification, rotating the knob in the opposite direction causes the clamping arm to clamp the mounting block, achieving rapid fixation and adapting to the production needs of particles of different sizes.
[0008] As a further description of the above technical solution: the screening assembly includes a support frame, which is located on the lower right side of the conveying cylinder. A filter plate is fixedly connected to the middle of the support frame. Springs are fixedly connected to both sides of the top of the support frame. A screening plate is fixedly connected to the top of the springs. A vibration motor is fixedly connected to the bottom of the screening plate.
[0009] By adopting the above technical solution, the sieving component can sieve the granular drug. Qualified granules that meet the specifications fall through the sieve holes onto the filter plate, while debris and fine powder fall into the box below through the filter plate. Qualified granules fall through the inclined filter plate into the collection box on the left for collection. Unqualified large granules are intercepted and enter the recovery box on the right through the inclined sieve plate 18.
[0010] As a further description of the above technical solution: the mixing component includes a mixing cylinder, which is disposed above the conveying cylinder. A third motor is fixedly connected to the top of the mixing cylinder. A stirring rod is fixedly connected to the output end of the third motor through the mixing cylinder. A discharge cylinder is fixedly connected to the bottom of the mixing cylinder. The bottom of the discharge cylinder is fixedly connected to the conveying cylinder. A slide valve is fixedly connected to the outside of the discharge cylinder. A feeding cylinder is fixedly connected to the mixing cylinder.
[0011] By adopting the above technical solution, the mixing component can fully stir and mix the humidified powder, ensuring that the raw material composition is uniform and the humidity is consistent, which facilitates subsequent granulation.
[0012] As a further description of the above technical solution: a first motor is fixedly connected to the left side of the conveying cylinder, and the output end of the first motor is fixedly connected to the rotating shaft.
[0013] By adopting the above technical solution, the first motor can drive the rotating shaft to rotate.
[0014] As a further description of the above technical solution: a knob is fixedly connected to the end of the bidirectional threaded rod, and the knob is located on the outside of the groove post.
[0015] By adopting the above technical solution, the bidirectional threaded rod can be rotated by turning the knob.
[0016] As a further description of the above technical solution: a sealing groove is provided on the inner side of the extrusion plate, and the right side of the conveying cylinder is disposed in the sealing groove.
[0017] By adopting the above technical solution, a sealing ring is installed in the sealing groove to ensure the sealing of the extrusion plate installed on the right side of the conveyor cylinder.
[0018] As a further description of the above technical solution: the gear is disposed outside the crushing chamber, and the two gears are meshed together.
[0019] By adopting the above technical solution, a transmission function is achieved, which allows the motor to drive one gear to rotate while simultaneously driving another gear to rotate, thus realizing relative motion between the two gears.
[0020] As a further description of the above technical solution: a scraper is fixedly connected to the output end of the second motor, and the scraper is located on the outside of the extrusion plate.
[0021] By adopting the above technical solution, the extruded columnar particles can be cut by a scraper.
[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0023] 1. The present invention provides a continuous powder granulation device. First, the mixing component can fully stir and mix the humidified powder to ensure uniform raw material composition and consistent humidity. Then, the powder is extruded with the help of the conveying cylinder and the spiral pusher. Finally, the extruded columnar particles are cut by the scraper to complete the granulation of the powder. At the same time, rotating the knob drives the bidirectional threaded rod to rotate, which drives the insert block to disengage from the slot of the mounting block, so that the extrusion plate can be removed. After replacing the extrusion plate with the corresponding die hole specification, rotating the knob in the opposite direction makes the clamping arm clamp the mounting block to achieve quick fixation and adapt to the production needs of particles with different particle sizes.
[0024] 2. This utility model provides a continuous powder granulation device. Two grinding rollers inside the grinding chamber can compress and shear large or clump-like powders, pulverizing them. The refined powder then enters the mixing component through a feeding cylinder, preventing clumping from affecting subsequent mixing and granulation. Simultaneously, the granulated powder is sieved by a screening component. Particles meeting the particle size standard pass through the sieve holes and fall into the collection box, while larger particles fall into the recovery box, ensuring uniform particle size. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0026] Figure 2 This is a cross-sectional view of the conveyor cylinder of this utility model;
[0027] Figure 3 This is an exploded view of the extruded plate of this utility model;
[0028] Figure 4This is a cross-sectional view of the mixing drum and crushing box of this utility model;
[0029] Figure 5 This is an exploded view of the support frame of this utility model.
[0030] In the diagram: 1. Conveying cylinder; 2. First motor; 3. Rotating shaft; 4. Spiral pusher plate; 5. Grooved column; 6. Bidirectional threaded rod; 7. Knob; 8. Clamping arm; 9. Insert block; 10. Extrusion plate; 11. Sealing groove; 12. Mounting block; 13. Slot; 14. Second motor; 15. Scraper; 16. Support frame; 17. Spring; 18. Screening plate; 19. Vibrating motor; 20. Mixing cylinder; 21. Discharge cylinder; 22. Slide valve; 23. Third motor; 24. Stirring rod; 25. Crushing box; 26. Rotating rod; 27. Crushing roller; 28. Fourth motor; 29. Gear; 30. Feeding cylinder; 31. Support; 32. Filter plate. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] To further understand the contents of this utility model, a detailed description of this utility model will be provided with reference to the accompanying drawings.
[0033] Reference Figure 1-5This utility model discloses a continuous powder granulation device, comprising a conveying cylinder 1, a rotating shaft 3 passing through and rotatably connected inside the conveying cylinder 1, and a spiral pusher plate 4 fixedly connected to the outer ring of the rotating shaft 3, which drives the spiral pusher plate 4 to rotate. Multiple grooved pillars 5 are fixedly connected to the outer ring of the right side of the conveying cylinder 1, with grooves on the outer side of each pillar 5. A bidirectional threaded rod 6 passes through and rotatably connected inside each grooved pillar 5, with clamping arms 8 threaded to both sides of the outer ring of the bidirectional threaded rod 6. The two sides of the outer ring of the bidirectional threaded rod 6 have reverse threads, which can drive the two clamping arms 8 to move relative to or away from each other. Insert blocks 9 are fixedly connected to the inner side of each clamping arm 8, serving a positioning function. An extrusion plate 10 is provided on the right side of the conveying cylinder 1, with evenly distributed holes inside the extrusion plate 10 to facilitate material extrusion. Multiple mounting blocks 12 are fixedly connected to the outer side of the extrusion plate 10, positioned between the two clamping arms 8, facilitating the fixed installation of the extrusion plate 10. Both sides of the mounting block 12 have slots 13. A second motor 14 is fixedly connected to the front end of the conveying cylinder 1. A screening component is located on the lower right side of the conveying cylinder 1. A mixing component is installed on the top of the conveying cylinder 1. A feeding cylinder 30 is connected to the outside of the mixing component, facilitating the entry of the pulverized powder into the mixing cylinder 20. A pulverizing box 25 is fixedly connected to the top of the feeding cylinder 30. A feeding cylinder (not shown in the figure) is located on the top of the pulverizing box 25. Two rotating rods 26 are rotatably connected through the pulverizing box 25. A pulverizing roller 27 is fixedly connected to the outer ring of the rotating rods 26, which can drive the pulverizing roller 27 to rotate. Gears 29 are fixedly connected to the front end of the outer ring of each of the two rotating rods 26. A fourth motor 28 is fixedly connected to the front end of the pulverizing box 25, and the output end of the fourth motor 28 is fixedly connected to the right rotating rod 26, which can drive the right rotating rod 26 to rotate. A bracket 31 is fixedly connected to the bottom of both the pulverizing box 25 and the conveying cylinder 1. A controller (not shown in the figure) for controlling the operation of the motor is installed on the outside of the bracket 31. A first motor 2 is fixedly connected to the left side of the conveying cylinder 1, and the output end of the first motor 2 is fixedly connected to the rotating shaft 3, which drives the rotating shaft 3 to rotate. A knob 7 is fixedly connected to the end of the bidirectional threaded rod 6, and the knob 7 is located outside the grooved post 5, which drives the bidirectional threaded rod 6 to rotate. A sealing groove 11 is opened on the inner side of the extrusion plate 10, and the right side of the conveying cylinder 1 is located in the sealing groove 11. A sealing ring (not shown in the figure) is installed in the sealing groove 11 to ensure the sealing of the extrusion plate 10 on the right side of the conveying cylinder 1. Gears 29 are located outside the crushing box 25, and two gears 29 are meshed together to play a transmission role, so that the motor can drive the other gear 29 to rotate at the same time, realizing the relative movement of the two gears 29. A scraper 15 is fixedly connected to the output end of the second motor 14, and the scraper 15 is located outside the extrusion plate 10, which can cut the columnar particles after extrusion.
[0034] Reference Figure 2 and Figure 5The screening assembly includes a support frame 16, which is located on the lower right side of the conveyor cylinder 1. A filter plate 32 is fixedly connected to the center of the support frame 16. Springs 17 are fixedly connected to both sides of the top of the support frame 16. A screening plate 18 is fixedly connected to the top of the springs 17. A vibration motor 19 is fixedly connected to the bottom of the screening plate 18. The power or frequency of the vibration motor 19 is controlled by a controller to reduce the vibration amplitude of the screening plate 18, preventing particles from colliding and breaking due to high-frequency strong vibration; at the same time, sufficient screening efficiency is maintained to avoid incomplete screening due to weak vibration. The screening assembly can screen particulate drugs. Qualified particles that meet the specifications fall through the sieve holes onto the filter plate 32. Debris and fine powder fall into the box below through the filter plate 32. Qualified particles fall into the collection box on the left side through the inclined filter plate 32 for collection. Unqualified large particles are intercepted and enter the recovery box on the right side through the inclined screening plate 18.
[0035] Reference Figure 1-5 The mixing component includes a mixing cylinder 20, which is positioned above the conveying cylinder 1. A third motor 23 is fixedly connected to the top of the mixing cylinder 20. A stirring rod 24 is fixedly connected to the output end of the third motor 23 through the mixing cylinder 20. A discharge cylinder 21 is fixedly connected to the bottom of the mixing cylinder 20. The bottom of the discharge cylinder 21 is fixedly connected to the conveying cylinder 1. A gate valve 22 is fixedly connected to the outside of the discharge cylinder 21. A feeding cylinder 30 is fixedly connected to the mixing cylinder 20. The mixing component can fully mix the humidified powder to ensure uniform raw material composition and consistent moisture content, which is convenient for subsequent granulation.
[0036] Working Principle: During operation, the powdered raw material is fed into the crushing chamber 25 through the feed cylinder at the top of the crushing chamber 25. The fourth motor 28 starts and drives the right rotating rod 26 to rotate, which in turn drives the left rotating rod 26 to rotate synchronously in the opposite direction through two meshing gears 29. The crushing rollers 27 on the outer ring of the rotating rod 26 rotate relative to each other, squeezing and shearing large or agglomerated powders. The refined powder enters the mixing component through the feeding cylinder 30, avoiding agglomeration that would affect subsequent mixing and granulation. The crushed powder enters the mixing cylinder 20, and at the same time, an appropriate amount of water is added through the water inlet pipe at the top of the mixing cylinder 20 to achieve humidification pretreatment of the powder (increasing the powder viscosity and facilitating molding). Simultaneously, the third motor 23 starts and drives the stirring rod 24 to rotate, thoroughly mixing the humidified powder to ensure uniform raw material composition and consistent moisture content. After mixing is completed, the gate valve 22 on the outside of the discharge cylinder 21 is opened, and the uniformly mixed and moistened powder falls into the conveying cylinder 1 through the discharge cylinder 21, achieving continuous feeding. The first motor 2 starts, driving the rotating shaft 3 inside the conveying cylinder 1 to rotate. The spiral pusher 4 on the outer ring of the rotating shaft 3 pushes the wet powder to the right, while applying continuous extrusion pressure to the powder, gradually compacting it. The compacted powder is pushed to the right side of the conveying cylinder 1 and extruded through the die holes on the extrusion plate 10 to form continuous columnar granules. The second motor 14 synchronously drives the scraper 15 to rotate, precisely cutting the columnar granules on the outer side of the extrusion plate 10 into granules of a preset length, completing the granulation process.
[0037] Furthermore, the extrusion plate 10 is flexibly replaceable: rotating the knob 7 drives the bidirectional threaded rod 6 to rotate, causing the clamping arms 8 on both sides to separate outwards, and the insert 9 disengages from the slot 13 of the mounting block 12, allowing the extrusion plate 10 to be removed; after replacing the extrusion plate 10 with one of the corresponding die hole specifications, rotating the knob 7 in the opposite direction causes the insert 9 of the clamping arm 8 to be inserted into the slot 13, clamping the mounting block 12 for quick fixation, adapting to the production needs of particles of different sizes. The cut particles fall to the screening assembly below, and the vibration motor 19 starts to drive the inclined screening plate 18 to vibrate. The spring 17 at the top of the support frame 16 provides elastic support, enhancing the vibration amplitude and screening efficiency. The screening plate 18 screens through the sieve holes, and qualified particles that meet the specifications fall from the sieve holes onto the filter plate 32. Debris and fine powder fall through the filter plate 32 into the box below, while qualified particles fall through the inclined filter plate 32 into the collection box on the left for collection. Large, non-compliant particles are intercepted and pass through the inclined screening plate 18 into the recycling bin on the right.
[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A continuous powder granulation device, comprising a conveying cylinder (1), characterized in that: A rotating shaft (3) is rotatably connected through the conveying cylinder (1). A spiral pusher plate (4) is fixedly connected to the outer ring of the rotating shaft (3). Multiple grooved columns (5) are fixedly connected to the outer ring of the right side of the conveying cylinder (1). A bidirectional threaded rod (6) is rotatably connected through the grooved column (5). Clamping arms (8) are threadedly connected to both sides of the outer ring of the bidirectional threaded rod (6). Insert blocks (9) are fixedly connected to the inner side of the clamping arms (8). An extrusion plate (10) is provided on the right side of the conveying cylinder (1). Multiple mounting blocks (12) are fixedly connected to the outer side of the extrusion plate (10). The mounting blocks (12) are located between two clamping arms (8), and slots (13) are provided on both sides of the mounting blocks (12). A first... Two motors (14), a screening component is provided on the lower right side of the conveying cylinder (1), a mixing component is installed on the top of the conveying cylinder (1), a feeding cylinder (30) is connected to the outside of the mixing component, a crushing box (25) is fixedly connected to the top of the feeding cylinder (30), two rotating rods (26) are connected through and rotatably inside the crushing box (25), a crushing roller (27) is fixedly connected to the outer ring of the rotating rod (26), a gear (29) is fixedly connected to the front end of the outer ring of the two rotating rods (26), a fourth motor (28) is fixedly connected to the front end of the crushing box (25), and the output end of the fourth motor (28) is fixedly connected to the rotating rod (26) on the right side, and a bracket (31) is fixedly connected to the bottom of the crushing box (25) and the conveying cylinder (1).
2. The continuous powder granulation device according to claim 1, characterized in that: The screening assembly includes a support frame (16), which is located below the right side of the conveying cylinder (1). A filter plate (32) is fixedly connected to the middle of the support frame (16). Springs (17) are fixedly connected to both sides of the top of the support frame (16). A screening plate (18) is fixedly connected to the top of the springs (17). A vibration motor (19) is fixedly connected to the bottom of the screening plate (18).
3. The continuous powder granulation device according to claim 1, characterized in that: The mixing assembly includes a mixing cylinder (20), which is positioned above the conveying cylinder (1). A third motor (23) is fixedly connected to the top of the mixing cylinder (20). A stirring rod (24) is fixedly connected to the output end of the third motor (23) through the mixing cylinder (20). A discharge cylinder (21) is fixedly connected to the bottom of the mixing cylinder (20). The bottom of the discharge cylinder (21) is fixedly connected to the conveying cylinder (1). A slide valve (22) is fixedly connected to the outside of the discharge cylinder (21). A feeding cylinder (30) is fixedly connected to the mixing cylinder (20).
4. The continuous powder granulation device according to claim 1, characterized in that: The first motor (2) is fixedly connected to the left side of the conveying cylinder (1), and the output end of the first motor (2) is fixedly connected to the rotating shaft (3).
5. The continuous powder granulation device according to claim 1, characterized in that: The end of the bidirectional threaded rod (6) is fixedly connected to a knob (7), and the knob (7) is located on the outside of the grooved post (5).
6. The continuous powder granulation apparatus according to claim 1, characterized in that: The inner side of the extrusion plate (10) is provided with a sealing groove (11), and the right side of the conveying cylinder (1) is located in the sealing groove (11).
7. The continuous powder granulation device according to claim 1, characterized in that: The gear (29) is located outside the crushing box (25), and two gears (29) are meshed together.
8. The continuous powder granulation apparatus according to claim 1, characterized in that: The output end of the second motor (14) is fixedly connected to a scraper (15), and the scraper (15) is located on the outside of the extrusion plate (10).