Spray feeding device of wet type granulator for pharmacy

By introducing a combination design of scraper and stirring rod into the spray feeding device, the problem of material adhesion is solved, achieving efficient mixing and cleaning, and improving the working efficiency and material utilization rate of the pellet mill.

CN224156807UActive Publication Date: 2026-04-24XINGAN PHARM CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XINGAN PHARM CO LTD
Filing Date
2025-05-22
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

During the drug granulation process, the material adheres to the inner wall of the feeding tank during mixing, resulting in inconvenient cleaning and material waste.

Method used

Design a spray feeding device that combines a scraper and a stirring rod. The scraper scrapes the inner wall of the feeding tank while spraying the material, and the water pump nozzle sprays and mixes the material to prevent sticking. The material discharge is controlled by a hydraulic rod.

Benefits of technology

It effectively prevents materials from sticking to the inner wall of the feeding tank, improves mixing efficiency and material utilization, and simplifies the cleaning process.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224156807U_ABST
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Abstract

The utility model relates to the technical field of feeding devices, and discloses a spraying feeding device of a pharmaceutical wet type granulator, which comprises a mounting plate, a feeding tank is mounted at the top of the mounting plate, a sealing cover is mounted at the top of the feeding tank, a fixing sleeve is fixedly connected to the top of the sealing cover, and a driving motor is mounted on the inner wall of the fixing sleeve. A rotating rod is fixedly connected to the output end of the driving motor, a connecting plate is fixedly connected to the surface of the rotating rod, a scraping plate is fixedly connected to one end of the connecting plate, a stirring rod is fixedly connected to the surface of the rotating rod, a feeding hopper is mounted at the top of the mounting plate, and a material box is fixedly connected to the top of the mounting plate; and a water pump is mounted at the top of the material box. According to the feeding tank disclosed by the utility model, the scraping plate is arranged, so that when material spraying is carried out in the feeding tank, the scraping plate scrapes the inner wall of the feeding tank and cleans the inner wall of the feeding tank, and breakage caused by adhesion of materials and the inner wall of the feeding tank is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of feeding device technology, specifically a spray feeding device for a pharmaceutical wet granulation machine. Background Technology

[0002] A granulator is a device that turns powdered materials into granules, and it is widely used in many fields such as pharmaceuticals, food, and chemicals. It effectively improves the physical properties of materials, such as flowability and compressibility, facilitating subsequent processing and storage. Different granulation processes and technologies, such as wet granulation and dry granulation, can meet diverse production needs. Its working principle typically involves using mechanical force or other actions to agglomerate powder into particles of a suitable size. Advanced granulators are characterized by high automation, good granulation precision, and high production efficiency, playing a crucial role in improving product quality and production efficiency.

[0003] When spraying materials into a pharmaceutical granulator, the spray needs to be applied to the surface of the material and mixed. However, during the mixing process, the material adheres to the inner wall of the feeding tank, which not only makes subsequent cleaning inconvenient but also wastes material. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a spray feeding device for a pharmaceutical wet granulation machine, including a mounting plate, a feeding tank mounted on the top of the mounting plate, a cover mounted on the top of the feeding tank, a fixing sleeve fixedly connected to the top of the cover, a drive motor mounted on the inner wall of the fixing sleeve, a rotating rod fixedly connected to the output end of the drive motor, a connecting plate fixedly connected to the surface of the rotating rod, a scraper fixedly connected to one end of the connecting plate, a stirring rod fixedly connected to the surface of the rotating rod, a feeding hopper mounted on the top of the mounting plate, a material box fixedly connected to the top of the mounting plate, a water pump mounted on the top of the material box, a connecting pipe mounted on the output end of the water pump, and a spray nozzle mounted on the output end of the connecting pipe.

[0005] The above technical solution involves setting up a scraper, starting the drive motor, and having the output of the drive motor drive the rotating rod to rotate. The rotation of the rotating rod causes the material inside the feeding tank to be stirred and mixed. The water pump is then started, and its output drives the material inside the material box into the nozzle, spraying and mixing the material inside the feeding tank. Simultaneously, the scraper scrapes and cleans the inner wall of the feeding tank while spraying the material, preventing the material from sticking to the inner wall and causing damage.

[0006] As a further improvement to the above solution, the bottom of the rotating rod is located inside the feeding tank.

[0007] With the above technical solution, the bottom of the rotating rod is located inside the feeding tank. This design ensures that the scraper and stirring rod on the rotating rod can directly act on the material in the feeding tank, effectively carrying out stirring and scraping operations, thereby improving the material processing efficiency and quality.

[0008] As a further improvement to the above solution, two connecting plates are provided, and the two connecting plates are evenly distributed on the surface with respect to the center of the top of the rotating rod.

[0009] With the above technical solution, the two connecting plates are symmetrically and evenly distributed on the surface with respect to the top center of the rotating rod. This symmetrical distribution makes the scraper more evenly stressed when rotating, reducing the device shaking or instability that may be caused by uneven stress. At the same time, it can also ensure that the scraper has a wider scraping range on the inner wall of the feeding tank and improve the scraping effect.

[0010] As a further improvement to the above solution, the input end of the water pump is located inside the material box, the nozzle is located inside the feeding tank, and the nozzle is located above the scraper.

[0011] With the above technical solution, the water pump inlet is located inside the material tank, facilitating direct extraction of liquid materials from the tank. The nozzle is located inside the mounting plate and above the scraper, ensuring that the liquid material sprayed from the nozzle accurately lands on the material below the scraper.

[0012] As a further improvement to the above solution, a mounting bracket is fixedly connected to the bottom of the mounting plate, a hydraulic rod is fixedly connected inside the mounting bracket, a cap is fixedly connected to the output end of the hydraulic rod, and a semi-circular sleeve is fixedly connected to the bottom of the feeding tank.

[0013] The above technical solution provides a mounting position for the hydraulic rod, ensuring its stable operation. The hydraulic rod drives the end cap to move accordingly. Through the cooperation between the end cap and the semi-circular sleeve, control of the bottom opening of the feeding tank is achieved, facilitating material discharge. The semi-circular sleeve connects to the bottom of the feeding tank, providing a mating structure for the sealing operation of the end cap.

[0014] As a further improvement to the above solution, the semi-circular sleeve is concentric with the feeding tank.

[0015] With the above technical solution, the semi-circular sleeve is concentric with the feeding tank, which can ensure that the end cap can accurately seal the bottom opening of the feeding tank when it is engaged with the semi-circular sleeve, avoiding problems such as poor sealing or poor material discharge caused by eccentricity.

[0016] As a further improvement to the above solution, the surface of the end cap is in contact with the inner wall of the semi-circular sleeve.

[0017] Through the above technical solution, the surface of the end cap is in contact with the inner wall of the semi-circular sleeve. This design ensures that the end cap can effectively seal the semi-circular sleeve under the action of the hydraulic rod, preventing the material in the feeding tank from leaking when it is not needed to discharge, thus ensuring the sealing of the device.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This invention features a scraper. When the drive motor is activated, its output drives a rotating rod, which in turn rotates the material inside the feeding tank, simultaneously stirring and mixing it. A water pump is also activated, drawing material from the material bin into the nozzle, spraying and mixing the material inside the feeding tank. Simultaneously, the scraper cleans the inner wall of the feeding tank while spraying the material, preventing the material from sticking and causing damage.

[0020] This invention, by setting a sealing head and activating a hydraulic rod, allows the output end of the hydraulic rod to detach the sealing head from the surface of the semi-circular sleeve, thus enabling the mixed material inside the feeding tank to be completely discharged from the feeding tank. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall internal structure of this utility model;

[0023] Figure 3 This is a cross-sectional view of the feeding tank of this utility model;

[0024] Figure 4 This is a schematic diagram of the overall connection structure of the rotating rod of this utility model;

[0025] Figure 5 This is a schematic diagram of the overall bottom structure of this utility model.

[0026] In the diagram: 1. Mounting plate; 2. Feeding tank; 3. Cover; 4. Fixing sleeve; 5. Drive motor; 6. Rotating rod; 7. Connecting plate; 8. Scraper; 9. Stirring rod; 10. Feed hopper; 11. Material box; 12. Water pump; 13. Connecting pipe; 14. Nozzle; 15. Mounting bracket; 16. Hydraulic rod; 17. End cap; 18. Semicircular sleeve. Detailed Implementation

[0027] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0028] Example:

[0029] Please combine Figure 1-5 This embodiment of a spray feeding device for a pharmaceutical wet granulation machine includes a mounting plate 1, a feeding tank 2 mounted on the top of the mounting plate 1, a cover 3 mounted on the top of the feeding tank 2, a fixing sleeve 4 fixedly connected to the top of the cover 3, a drive motor 5 mounted on the inner wall of the fixing sleeve 4, a rotating rod 6 fixedly connected to the output end of the drive motor 5, a connecting plate 7 fixedly connected to the surface of the rotating rod 6, a scraper 8 fixedly connected to one end of the connecting plate 7, a stirring rod 9 fixedly connected to the surface of the rotating rod 6, a feeding hopper 10 mounted on the top of the mounting plate 1, a material box 11 fixedly connected to the top of the mounting plate 1, a water pump 12 mounted on the top of the material box 11, and a connecting pipe 12 mounted on the output end of the water pump 12. 3. A nozzle 14 is installed at the output end of the connecting pipe 13. Material is fed into the inside of the feeding tank 2 from the feed hopper 10. The drive motor 5 is started. The output end of the drive motor 5 drives the rotating rod 6 to rotate. The rotation of the rotating rod 6 drives the 9 to rotate, and simultaneously drives the material inside the feeding tank 2 to stir and mix. The water pump 12 is started. The output end of the water pump 12 drives the material inside the material box 11 into the nozzle 14 to spray and mix the material inside the feeding tank 2. At the same time, when the material is sprayed inside the feeding tank 2 by the scraper 8, the scraper scrapes down the inner wall of the feeding tank 2 to avoid the material from sticking to the inner wall of the feeding tank 2 and causing material breakage.

[0030] The bottom of the rotating rod 6 is located inside the feeding tank 2.

[0031] There are two connecting plates 7, which are evenly distributed on the surface with respect to the top center of the rotating rod 6.

[0032] The input end of the water pump 12 is located inside the material box 11, the nozzle 14 is located inside the mounting plate 1, and the nozzle 14 is located above the scraper 8.

[0033] The bottom of the mounting plate 1 is fixedly connected to the mounting bracket 15, the inside of the mounting bracket 15 is fixedly connected to the hydraulic rod 16, the output end of the hydraulic rod 16 is fixedly connected to the end cap 17, and the bottom of the feeding tank 2 is fixedly connected to the semi-circular sleeve 18.

[0034] The semi-circular sleeve 18 is concentric with the feeding tank 2.

[0035] The surface of the end cap 17 is in contact with the inner wall of the semi-circular sleeve 18.

[0036] The implementation principle of the spray feeding device for a pharmaceutical wet granulation machine in this application embodiment is as follows: When feeding the granulator, the material is put into the inside of the feeding tank 2 from the feed hopper 10. The drive motor 5 is started, and the output end of the drive motor 5 drives the rotating rod 6 to rotate. The rotation of the rotating rod 6 drives the 9 to rotate, and simultaneously drives the material inside the feeding tank 2 to stir and mix. The water pump 12 is started, and the output end of the water pump 12 drives the material inside the material box 11 into the inside of the nozzle 14 to spray and mix the material inside the feeding tank 2. At the same time, when the material is sprayed inside the feeding tank 2 by the scraper 8, the scraper scrapes down the inner wall of the feeding tank 2 to avoid the material from sticking to the inner wall of the feeding tank 2 and causing material breakage.

[0037] By using the end cap 17, the hydraulic rod 16 is activated. The output end of the hydraulic rod 16 disengages the end cap 17 from the surface of the semi-circular sleeve 18, allowing the mixed material inside the feeding tank 2 to be completely discharged from the inside of the feeding tank 2.

[0038] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A spray feeding device for a pharmaceutical wet granulation machine, characterized in that: The device includes an installation plate (1), a feeding tank (2) is installed on the top of the installation plate (1), a cover (3) is installed on the top of the feeding tank (2), a fixing sleeve (4) is fixedly connected to the top of the cover (3), a drive motor (5) is installed on the inner wall of the fixing sleeve (4), a rotating rod (6) is fixedly connected to the output end of the drive motor (5), a connecting plate (7) is fixedly connected to the surface of the rotating rod (6), a scraper (8) is fixedly connected to one end of the connecting plate (7), a stirring rod (9) is fixedly connected to the surface of the rotating rod (6), a feeding hopper (10) is installed on the top of the installation plate (1), a material box (11) is fixedly connected to the top of the installation plate (1), a water pump (12) is installed on the top of the material box (11), a connecting pipe (13) is installed at the output end of the water pump (12), and a nozzle (14) is installed at the output end of the connecting pipe (13).

2. The spray feeding device for a pharmaceutical wet granulation machine according to claim 1, characterized in that: The bottom of the rotating rod (6) is located inside the feeding tank (2).

3. The spray feeding device for a pharmaceutical wet granulation machine according to claim 1, characterized in that: There are two connecting plates (7), which are evenly distributed on the surface with the top center of the rotating rod (6) symmetrically arranged.

4. The spray feeding device for a pharmaceutical wet granulation machine according to claim 1, characterized in that: The input end of the water pump (12) is located inside the material box (11), the nozzle (14) is located inside the feeding tank (2), and the nozzle (14) is located above the scraper (8).

5. The spray feeding device for a pharmaceutical wet granulation machine according to claim 1, characterized in that: The bottom of the mounting plate (1) is fixedly connected to a mounting bracket (15), and a hydraulic rod (16) is fixedly connected inside the mounting bracket (15). The output end of the hydraulic rod (16) is fixedly connected to a cap (17), and a semi-circular sleeve (18) is fixedly connected to the bottom of the feeding tank (2).

6. The spray feeding device for a pharmaceutical wet granulation machine according to claim 5, characterized in that: The semicircular sleeve (18) is concentric with the feeding tank (2).

7. The spray feeding device for a pharmaceutical wet granulation machine according to claim 5, characterized in that: The surface of the end cap (17) is in contact with the inner wall of the semicircular sleeve (18).