A wet granulation mixer
By introducing a cutting motor and frequency converter to adjust the cutting blade speed in the mixing granulator, combined with a stirring motor and an airtight structure, the problem of difficulty in adjusting the cutting speed in existing granulators has been solved, achieving controllable particle size and improved production efficiency, while ensuring the cleanliness of the operating environment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING SHENPENG MACHINERY EQUIP
- Filing Date
- 2025-06-17
- Publication Date
- 2026-06-16
Smart Images

Figure CN224358379U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a mixed granulator, specifically a wet granulation mixed granulator, and belongs to the technical field of mixed granulator. Background Technology
[0002] High-speed wet granulation machines are used in the pharmaceutical, food, and feed industries for granulation processes. This machine integrates mixing and granulation, and its biggest advantages are high granulation speed and excellent results. It is widely used in the following industries: Pharmaceutical industry: tablet production, providing ideal granular raw materials for the tableting process; Food industry: granulation for chemical seasonings, dairy products, spices, acidulants, food additives, and food colorings; Feed industry: granulation for feed additives, fish feed, and livestock feed.
[0003] In the process of mixing and granulation, the raw materials are added to the cylinder at once, mixed, and then a binder is injected. The mixture is then shredded into granules. However, existing mixing and granulating machines are difficult to safely adjust the cutting speed as needed, making it difficult to cut granules of different sizes, and thus have low applicability. To address this issue, we provide a wet granulation mixing and granulating machine to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide a wet granulation mixing granulator to solve the above-mentioned problems, thereby addressing the difficulty in safely adjusting the cutting speed as needed in the prior art, which makes it difficult to cut the granules into different sizes.
[0005] This utility model is achieved through the following technical solution: a wet granulation mixing granulator, including a frame, a pot body fixedly connected to the upper surface of the frame, a cutting motor fixedly connected to one side of the pot body, a cutting blade fixedly connected to the output shaft of the cutting motor, the output shaft of the motor passing through the pot body and rotatably connected to the pot body, a stirring shaft rotatably connected inside the pot body, the stirring shaft passing through the pot body, and a first air seal provided on the outer surface of the output shaft of the stirring shaft;
[0006] The output shaft of the stirring shaft is fixedly connected to a reducer, the output shaft of the reducer is engaged with a transmission belt, the transmission belt is engaged with a stirring motor, and the lower surface of the stirring motor is fixedly connected to the inner side of the frame.
[0007] Preferably, a staircase is fixedly connected to one side of the frame, and a second air seal is provided on the output shaft of the cutting motor. The second air seal is installed on the output shaft of the cutting motor to prevent leakage when the output shaft of the cutting machine rotates, thus playing a sealing role.
[0008] Preferably, the outlet of the pot is fixedly connected to a pneumatic discharge valve, and the outlet of the pneumatic discharge valve is fixedly connected to a granulator. The mixed raw materials are discharged through the pneumatic discharge valve and then granulated by the granulator.
[0009] Preferably, a lid is hinged to one side of the pot body, and an opening cylinder is hinged to one side of the lid. The lid is installed on the pot body, and the lid can prevent the raw materials inside the pot body from spraying out during mixing.
[0010] Preferably, the upper surface of the frame is hinged to the lower end of the lid-opening cylinder, and a breather valve is fixedly connected to the upper surface of the pot lid. A pneumatic ball valve is fixedly connected to one side of the breather valve. The lid can be opened and closed by the lid-opening cylinder, and the air pressure inside the pot can be leaked out by the breather valve to prevent the air pressure inside the pot from becoming too high.
[0011] Preferably, a spray ball is fixedly connected to the inner wall of the pot lid, and a slurry spray gun is fixedly connected to the upper surface of the pot lid. The inlet of the slurry spray gun is fixedly connected to a dual-machine spiral air pump. The raw materials drawn by the dual-machine spiral air pump can be sprayed onto the inside of the pot body through the slurry spray gun.
[0012] Preferably, the outlet of the granulator is fixedly connected to a discharge adapter, and the outlet of the discharge adapter is fixedly connected to a sintered filter element. The discharge adapter can be equipped with different types of discharge devices, and the sintered filter element can perform filtration.
[0013] This utility model provides a wet granulation mixing granulator, which has the following beneficial effects:
[0014] 1. This mixing granulator uses a cutting motor, a stirring motor, a sintering filter element, a discharge adapter, a pot lid, a two-stage spiral air pump, a pot body, and a cutting blade in combination. The cutting motor drives the cutting blade to rotate at high speed via a transmission belt, and the stirring motor drives the stirring paddle to achieve controllable particle size. The cutting blade speed is steplessly adjustable via a frequency converter, which can flexibly adjust the cutting intensity according to different material characteristics and precisely control the particle size. The stirring paddle mixes the materials at low speed, while the cutting blade cuts soft materials at high speed. The dual-speed design shortens the granulation time and improves production efficiency.
[0015] 2. This mixing granulator utilizes a combination of components including a frame, granulator, pneumatic discharge valve, first air seal, stirring shaft, slurry spray gun, spray ball, breather valve, pneumatic ball valve, lid opening cylinder, and reducer. Through air seal technology combined with a labyrinth seal, it completely solves the leakage problem of the stirring and cutting shafts, avoiding material contamination and cross-contamination. The breather valve and pneumatic ball valve work together to regulate the air pressure inside the pot, preventing material splashing due to pressure fluctuations, while ensuring the operating environment meets GMP cleanliness requirements. Attached Figure Description
[0016] Figure 1 This is a frontal three-dimensional structural diagram of the present invention;
[0017] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the present invention from the left view.
[0018] Figure 3 This is a top view of the overall three-dimensional structure of this utility model.
[0019] [Explanation of Key Component Symbols]
[0020] 1. Frame; 2. Granulator; 3. Pneumatic discharge valve; 4. First air seal; 5. Agitator shaft; 6. Slurry spray gun; 7. Spray ball; 8. Breathing valve; 9. Pneumatic ball valve; 10. Lid opening cylinder; 11. Reducer; 12. Second air seal; 13. Cutting motor; 14. Agitator motor; 15. Staircase; 16. Sintering filter element; 17. Discharge adapter; 18. Pot lid; 19. Two-stage spiral air pump; 20. Pot body; 21. Cutting blade; 22. Drive belt. Detailed Implementation
[0021] This utility model provides a wet granulation mixing granulator.
[0022] Please see Figure 2 The system includes a frame 1, the upper surface of which is hinged to the lower end of the lid-opening cylinder 10. A breather valve 8 is fixedly connected to the upper surface of the pot lid 18, and a pneumatic ball valve 9 is fixedly connected to one side of the breather valve 8. The lid-opening cylinder 10 is mounted on the frame 1 and can play a fixing role when it extends or retracts, preventing it from falling off. The breather valve 8 is mounted on the pot lid 18. When the air pressure inside the pot body 20 is too high, the breather valve 8 and the pneumatic ball valve 9 can release the pressure inside the pot body 20. A staircase 15 is fixedly connected to one side of the frame 1. The output shaft of the cutting motor 13 is equipped with a second air seal 12. The staircase 15 is mounted on the frame 1, and the operator can stand on the staircase 15 to add raw materials to the breather valve 8. The output shaft of the cutting motor 13 is equipped with a second air seal 12. When the output shaft of the cutting motor 13 rotates, the second air seal 12 can seal the joint between the output shaft of the cutting motor 13 and the breather valve 8, thus achieving a sealing function.
[0023] A pot body 20 is fixedly connected to the upper surface of the frame 1. A pot lid 18 is hinged to one side of the pot body 20. A spray ball 7 is fixedly connected to the inner wall of the pot lid 18. A slurry spray gun 6 is fixedly connected to the upper surface of the pot lid 18. A two-stage spiral air pump 19 is fixedly connected to the inlet of the slurry spray gun 6. Both the slurry spray gun 6 and the spray ball 7 are installed on the pot lid 18. The inside of the breather valve 8 can be cleaned by the spray ball 7. The raw materials for mixing are drawn by the two-stage spiral air pump 19 and sprayed into the inside of the breather valve 8 by the slurry spray gun 6.
[0024] Please see Figure 1 and Figure 3 A lid-opening cylinder 10 is hinged to one side of the pot lid 18. The pot lid 18 is installed on the pot body 20. When the raw materials inside the pot body 20 are mixed and crushed, the pot lid 18 can prevent the raw materials from being sprayed out, thus playing a sealing role. The lid-opening cylinder 10 can drive the pot lid 18 to open. The outlet of the pot body 20 is fixedly connected to a pneumatic discharge valve 3. The outlet of the pneumatic discharge valve 3 is fixedly connected to a granulator 2. The pneumatic discharge valve 3 is installed on the pot body 20. The pneumatic discharge valve 3 can control the discharge speed and quantity. The granulator 2 is installed on the pneumatic discharge valve 3 and can granulate the mixed raw materials. The outlet of the granulator 2 is fixedly connected to a discharge adapter 17. The outlet of the discharge adapter 17 is fixedly connected to a sintered filter element 16. The discharge adapter 17 is installed on the granulator 2. Different types of discharge equipment can be installed through the discharge adapter 17. The sintered filter element 16 is installed on the discharge adapter 17 and can be used for filtration to reduce dust.
[0025] A cutting motor 13 is fixedly connected to one side of the pot body 20. A cutting blade 21 is fixedly connected to the output shaft of the cutting motor 13. The output shaft of the motor passes through the pot body 20 and is rotatably connected to the pot body 20. A stirring shaft 5 is rotatably connected inside the pot body 20. The stirring shaft 5 passes through the pot body 20. A first air seal 4 is provided on the outer surface of the output shaft of the stirring shaft 5. A reducer 11 is fixedly connected to the output shaft of the stirring shaft 5. A transmission belt 22 is engaged with the output shaft of the reducer 11. A stirring motor 14 is engaged with the transmission belt 22. The lower surface of the stirring motor 14 is fixedly connected to the inner side of the frame 1. After the raw materials are poured into the pot body 20, the cutting blade 21 is driven by the cutting motor 13 to crush the raw materials inside the pot body 20. Then, the transmission belt 22 and the reducer 11 are driven by the stirring motor 14 to rotate. The stirring shaft 5 is driven by the reducer 11 to crush and mix the raw materials inside the pot body 20.
[0026] The granulator 2, pneumatic discharge valve 3, stirring shaft 5, slurry spray gun 6, spray ball 7, breather valve 8, pneumatic ball valve 9, cover opening cylinder 10, reducer 11, cutting motor 13, stirring motor 14, discharge adapter 17 and double-stage spiral air pump 19 in this application are all common electrical devices in the prior art, and their models or specific structures will not be described in detail in this application.
[0027] Working principle: Raw materials are added to the inverted conical pot 20 at once. After the pot lid 18 is closed, a sealed space is formed. The binder is injected into the pot 20 by spraying or dripping through the slurry spray gun 6, or added simultaneously with the raw materials. The stirring motor 14 drives the stirring shaft 5 to rotate at low speed, which fully mixes the raw materials and binder to form a soft material. The inverted conical pot 20 is designed to enhance the material turning efficiency and reduce sedimentation. The cutting motor 13 drives the cutting blade 21 to rotate at high speed through the transmission belt 22, which cuts the soft material into granules. The cutting speed is steplessly adjusted by the frequency converter to precisely control the particle size. The stirring shaft 5 and the cutting blade 21 adopt the first air seal 4 and the second air seal 12, combined with the labyrinth seal to prevent leakage and avoid cross-contamination. The breather valve 8 and the pneumatic ball valve 9 work together to regulate the air pressure inside the pot 20 to prevent material splashing and meet GMP clean requirements. After granulation, the pneumatic discharge valve 3 is opened, and the granules enter the granulator 2 for further shaping. Finally, the granules are discharged after being filtered for dust by the discharge adapter 17 and the sintering filter element 16.
[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A wet granulation mixing granulator, comprising a frame (1), characterized in that: A pot body (20) is fixedly connected to the upper surface of the frame (1). A cutting motor (13) is fixedly connected to one side of the pot body (20). A cutting blade (21) is fixedly connected to the output shaft of the cutting motor (13). The output shaft of the motor passes through the pot body (20) and is rotatably connected to the pot body (20). A stirring shaft (5) is rotatably connected inside the pot body (20). The stirring shaft (5) passes through the pot body (20). A first air seal (4) is provided on the outer surface of the output shaft of the stirring shaft (5). The output shaft of the stirring shaft (5) is fixedly connected to a reducer (11), the output shaft of the reducer (11) is engaged with a transmission belt (22), the transmission belt (22) is engaged with a stirring motor (14), and the lower surface of the stirring motor (14) is fixedly connected to the inner side of the frame (1).
2. The wet granulation mixing granulator according to claim 1, characterized in that: A staircase (15) is fixedly connected to one side of the frame (1), and a second air seal (12) is provided on the output shaft of the cutting motor (13).
3. The wet granulation mixing granulator according to claim 1, characterized in that: The outlet of the pot body (20) is fixedly connected to a pneumatic discharge valve (3), and the outlet of the pneumatic discharge valve (3) is fixedly connected to a granulator (2).
4. The wet granulation mixing granulator according to claim 1, characterized in that: A lid (18) is hinged to one side of the pot body (20), and an opening cylinder (10) is hinged to one side of the lid (18).
5. A wet granulation mixing granulator according to claim 4, characterized in that: The upper surface of the frame (1) is hinged to the lower end of the lid-opening cylinder (10), and a breather valve (8) is fixedly connected to the upper surface of the pot lid (18). A pneumatic ball valve (9) is fixedly connected to one side of the breather valve (8).
6. A wet granulation mixing granulator according to claim 5, characterized in that: A spray ball (7) is fixedly connected to the inner wall of the pot lid (18), and a slurry spray gun (6) is fixedly connected to the upper surface of the pot lid (18). A two-stage spiral air pump (19) is fixedly connected to the inlet of the slurry spray gun (6).
7. A wet granulation mixing granulator according to claim 3, characterized in that: The outlet of the granulator (2) is fixedly connected to a discharge adapter (17), and the outlet of the discharge adapter (17) is fixedly connected to a sintered filter element (16).