A concentrated compounding tank for pharmaceutical excipient production

By introducing a spray pipe and a stirring assembly into the concentration tank, the problem of raw material splashing and adhesion was solved, achieving efficient mixing and cleaning of the solution and improving the accuracy and quality of the solution proportions.

CN224506952UActive Publication Date: 2026-07-17CHENGDU HUAYI PHARM EXCIPIENTS MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHENGDU HUAYI PHARM EXCIPIENTS MFG CO LTD
Filing Date
2025-08-15
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Raw materials are prone to splashing and adhering to the walls of the concentration tank during the feeding process, which leads to a decrease in the accuracy of the solution ratio and affects the solution quality.

Method used

A concentration tank with a spray pipe and a stirring assembly was designed. The lower layer of solution in the tank is pumped to the spray pipe by a water pump to spray and rinse the tank cover and inner wall. At the same time, the spray pipe is rotated by a rotating shaft to achieve comprehensive stirring and cleaning of the solution in the tank.

Benefits of technology

This effectively prevents raw materials from adhering to the tank wall, improves solution mixing efficiency and cleaning effect, and ensures the accuracy and quality of solution proportioning.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224506952U_ABST
Patent Text Reader

Abstract

The utility model provides a kind of for medicinal adjuvant production concentration tank, belong to medicinal material auxiliary processing equipment technical field. Including tank body, the top of tank body is provided with tank cover, liquid suction pipe is provided in tank body, the top of tank body is equipped with water pump, still be provided with spray pipe in tank body, spray pipe is opened with the spray hole of tank cover bottom wall and tank body inner wall, and liquid suction pipe and spray pipe are respectively with the water inlet and water outlet of water pump intercommunication, drive piece for driving spray pipe rotation is set on tank body. While stirring solution in tank body, solution in tank body lower layer can also be pumped up to spray tank cover and tank body inner wall, avoid tank cover, tank body inner wall adhere raw material, while, the mixing of upper and lower layer solution in tank body can also be accelerated, with the effect of keeping solution fresh and improving solution mixing efficiency.
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Description

Technical Field

[0001] This utility model relates to the technical field of pharmaceutical excipient processing equipment, and in particular to a concentration tank for the production of pharmaceutical excipients. Background Technology

[0002] Concentration tanks, also known as mixing tanks, offer advantages such as energy saving, concentration, high production capacity, easy cleaning, and simple structure. They are primarily used for mixing pharmaceutical materials and other elements and drugs after compounding, making them an indispensable piece of equipment for pharmaceutical manufacturers. To ensure stable temperature of the pharmaceutical materials, concentration tanks are equipped with temperature control jackets, using steam or cooling water to regulate the temperature.

[0003] Patent CN220003680U discloses a quantitatively proportionable concentration tank, including a tank body, a support frame fixedly connected to the bottom end of the tank body, a discharge valve fixedly connected to the bottom end of the tank body, a discharge pipe fixedly connected to the bottom end of the discharge valve, a mounting cover movably connected to the top end of the tank body, a feed box fixedly connected to one side of the top end of the mounting cover, a drive motor fixedly connected to the top end of the mounting cover, a drive shaft fixedly connected to the output end of the drive motor through the top end of the mounting cover, stirring rods fixedly connected to both sides of the drive shaft, a fixing plate fixedly connected to one side of the stirring rod, and a rubber scraper fixedly connected to one side of the fixing plate.

[0004] However, when raw materials are fed into the milk tank from the feed box, they tend to splash and adhere to the tank wall above the liquid level. They cannot be effectively stirred, which affects the accuracy of the concentration ratio of the solution in the concentration tank. Furthermore, the raw materials adhering to the tank wall are prone to expiring over time, affecting the quality of the solution in the concentration tank. Utility Model Content

[0005] In view of the above problems, this utility model provides a concentration tank for the production of pharmaceutical excipients.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A concentration tank for pharmaceutical excipient production is provided, comprising a tank body, a tank cover at the top of the tank body, a feed pipe connected to the tank cover, a feed bucket connected to one side of the feed pipe, a support frame at the bottom of the tank body, a stirring assembly inside the tank body, a liquid outlet pipe connected to the bottom of the tank body, a liquid extraction pipe inside the tank body, a water pump at the top of the tank body, and a spray pipe inside the tank body. The spray pipe has spray holes facing the bottom wall of the tank cover and the inner wall of the tank body. The liquid extraction pipe and the spray pipe are respectively connected to the inlet and outlet of the water pump. A drive component for driving the spray pipe to rotate is provided on the tank body.

[0008] Furthermore, the stirring assembly includes a rotating shaft and a drive motor. The drive motor is fixedly installed at the bottom of the tank, and the rotating shaft is coaxially installed inside the tank. The bottom end of the rotating shaft is connected to the output shaft of the drive motor, and several stirring rods are fixedly connected to the outer wall of the rotating shaft.

[0009] Furthermore, a water intake trough is coaxially provided at the top of the rotating shaft, and several through holes communicating with the water intake trough are provided on the outer wall of the rotating shaft, with the bottom end of the liquid extraction tube extending into the water intake trough.

[0010] Furthermore, the inner bottom wall of the water intake tank is provided with a drainage protrusion with an upper surface that is arc-shaped / conical, and at least one perforation is aligned with the lower edge of the drainage protrusion.

[0011] Furthermore, a channel pipe is fixedly installed on the tank cover. The top of the channel pipe is connected to the water outlet of the water pump through a pipe, and the bottom of the channel pipe is connected to the spray pipe. The spray pipe is rotatably connected to the channel pipe through a bearing.

[0012] Furthermore, the driving component includes a connecting cylinder, the top end of which is fixedly connected to the outer wall of the spray pipe, the bottom end of which has a polygonal cross-section, and the bottom end of which is inserted into the rotating shaft. Several connecting holes are provided on the connecting cylinder.

[0013] The beneficial effects of this utility model are as follows: After the raw materials are added into the tank through the inlet pipe and the feed bucket, the solution in the lower layer of the tank is pumped to the spray pipe by the water pump and sprayed on the bottom wall of the tank cover and the inner wall of the tank. Then, by rotating the rotating shaft, the solution in the tank is stirred, and the spray pipe is also rotated to spray and rinse the tank cover and the inner wall of the tank. This avoids the raw materials from adhering to the tank cover and the inner wall of the tank, and can also accelerate the mixing of the upper and lower layers of the solution in the tank, thereby improving the solution mixing efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the concentration tank according to an embodiment of this application.

[0015] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the concentration tank according to an embodiment of this application.

[0016] Among them, 1. Tank body; 11. Tank cover; 12. Feed pipe; 13. Feed bucket; 14. Support frame; 15. Liquid outlet pipe; 21. Liquid extraction pipe; 22. Water pump; 23. Spray pipe; 231. Spray hole; 31. Rotating shaft; 32. Drive motor; 33. Stirring rod; 331. Water intake tank; 332. Perforation; 333. Drainage protrusion; 4. Channel pipe; 5. Connecting cylinder; 51. Connecting hole. Detailed Implementation

[0017] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0018] This application discloses a concentration tank for the production of pharmaceutical excipients, referring to... Figure 1 and Figure 2 The system includes a tank body 1, with a tank cover 11 sealed to the top of the tank body 1 via a flange or snap-fit. A feed pipe 12 and a feed container 13 are connected to the tank cover 11. The feed pipe 12 is connected to liquid raw materials, and the feed container 13 can store liquid raw materials or solid powders. A liquid outlet pipe 15 is connected to the bottom of the tank body 1. Electronic valves are installed on the feed container 13, the top of the tank body 1, the feed pipe 12, and the liquid outlet pipe 15. A support frame 14 is fixedly installed at the bottom of the tank body 1, and the tank body 1 is fixedly installed on the ground via the support frame 14.

[0019] The tank 1 is equipped with a stirring assembly. In this embodiment, the stirring assembly may include a rotating shaft 31 and a drive motor 32. The rotating shaft 31 is coaxially rotatably installed inside the tank 1, and the drive motor 32 is fixedly installed at the bottom of the tank 1. The output shaft of the drive motor 32 is coaxially connected to the rotating shaft 31. A stirring rod 33 is fixedly connected to the outer wall of the rotating shaft 31. Multiple stirring rods 33 are provided. The rotating shaft 31 is driven to rotate by the drive motor 32, thereby stirring the solution in the tank 1 by the stirring rods 33.

[0020] A liquid extraction pipe 21 is installed inside the tank body 1, with its bottom end extending as far as possible towards the bottom of the tank body 1. A water pump 22 is installed on the tank cover 11, with the top end of the liquid extraction pipe 21 extending out of the tank cover 11 and connected to the water inlet of the water pump 22. A spray pipe 23 is also installed inside the tank body 1, close to the tank cover 11. The spray pipe 23 has spray holes 231 facing the bottom wall of the tank cover 11 and the inner wall of the tank body 1. Alternatively, nozzles facing the bottom wall of the tank cover 11 and the inner wall of the tank body 1 can be connected to the spray pipe 23. One end of the spray pipe 23 is connected to the water outlet of the water pump 22. A driving component is provided on the tank body 1 to drive the spray pipe 23 to rotate, so that the spray pipe 23 can cover the bottom wall of the tank cover 11 for spraying.

[0021] Specifically, a water intake trough 331 is coaxially provided at the top of the rotating shaft 31, and several through holes 332 communicating with the water intake trough 331 are provided on the outer wall of the rotating shaft 31. The through holes 332 are staggered with the stirring rod 33. The liquid extraction pipe 21 is coaxially installed in the tank 1 and inserted into the water intake trough 331. Sufficient water passage gap is left between the liquid extraction pipe 21 and the inner wall of the water intake trough 331. The solution in the tank 1 enters the water intake trough 331 through the through holes 332 and is drawn and pumped to the spray pipe 23 by the liquid extraction pipe 21 in the water intake trough 331. This avoids interference between the liquid extraction pipe 21 and the rotating shaft 31 and allows the liquid extraction pipe 21 to extend as far as possible to the bottom of the tank 1. This design allows the lower layer of solution in tank 1 to be pumped to spray pipe 23 to rinse away any unmixed raw materials from the bottom wall of tank cover 11 and the inner wall of tank 1. It also allows the lower layer of solution to be pumped to the upper layer, accelerating the mixing efficiency of the solution in the concentration tank.

[0022] A channel pipe 4 is installed on the tank lid 11. The channel pipe 4 has an annular channel inside and is coaxially fitted onto the outside of the liquid extraction pipe 21. A pipe is connected to the top wall of the channel pipe 4, and the channel pipe 4 is connected to the outlet of the water pump 22 through this pipe. One end of the spray pipe 23 is connected to a connecting seat, which is rotatably installed at the bottom of the channel pipe 4 via a bearing, and the spray pipe 23 and the channel pipe 4 are connected through the connecting seat. A rubber ring can be used to seal between the connecting seat and the channel pipe 4, or they can be directly connected without sealing, as long as the solution pressure in the spray pipe 23 is sufficient to spray the solution onto the bottom wall of the tank lid 11 and the inner wall of the tank body 1.

[0023] In addition to rinsing the raw materials attached to the tank body 1 and the tank cover 11 to improve the utilization rate of raw materials and accelerate the solution mixing effect, the cleaning solution can also be sprayed onto the top wall of the tank cover 11 and the inner wall of the tank body 1 during cleaning, thereby improving the automatic cleaning effect of the tank body 1.

[0024] In this embodiment, the driving component includes a connecting cylinder 5. The top end of the connecting cylinder 5 is fixedly connected to the outer wall of the spray pipe 23. The bottom end of the connecting cylinder 5 has a polygonal cross-section and is inserted into the rotating shaft 31. The connecting cylinder 5 has several connecting holes 51. Through the cooperation between the connecting cylinder and the rotating shaft 31, the spray pipe 23 can rotate together with the rotating shaft 31. The design of the connecting holes 51 can balance the air pressure in the water tank 331 under the weight of the rotating shaft 31, so that the liquid extraction pipe 21 can smoothly extract the solution from the water tank 331.

[0025] Furthermore, to ensure the solution in the water intake tank 331 drains naturally without residue, the inner bottom wall of the water intake tank 331 is provided with a drainage protrusion 333 whose upper surface is an arc / conical surface. At least one through hole 332 on the rotating shaft 31 is aligned with the lower edge of the drainage protrusion 333. Through the cooperation of the drainage protrusion 333 and the through hole 332, the solution in the water intake tank 331 can be effectively discharged outward. In other embodiments, a through hole can also be opened at the lowest position on the spray pipe 23 to allow the solution in the spray pipe 23 to drain smoothly.

[0026] Those skilled in the art will understand that although preferred embodiments of the present invention have been described, those skilled in the art, once they understand the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention. Clearly, those skilled in the art can make various alterations and modifications to the present invention without departing from its spirit and scope. Thus, if these modifications and modifications of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include these modifications and modifications.

Claims

1. A concentrated compounding tank for the production of pharmaceutical excipients, characterized by: The system includes a tank body (1), a tank cover (11) on the top of the tank body (1), a feed pipe (12) connected to the tank cover (11), a feed bucket (13) connected to one side of the feed pipe (12), a support frame (14) at the bottom of the tank body (1), a stirring assembly inside the tank body (1), a liquid outlet pipe (15) connected to the bottom of the tank body (1), and a liquid extraction pipe (21) inside the tank body (1). The tank (1) is equipped with a water pump (22) at the top and a spray pipe (23) is provided inside the tank (1). The spray pipe (23) has spray holes (231) facing the bottom wall of the tank cover (11) and the inner wall of the tank (1). The liquid extraction pipe (21) and the spray pipe (23) are respectively connected to the water inlet and water outlet of the water pump (22). The tank (1) is equipped with a drive component for driving the spray pipe (23) to rotate.

2. The concentration tank for producing a pharmaceutical excipient according to claim 1, wherein The stirring assembly includes a rotating shaft (31) and a drive motor (32). The drive motor (32) is fixedly installed at the bottom of the tank (1). The rotating shaft (31) is coaxially installed inside the tank (1). The bottom end of the rotating shaft (31) is connected to the output shaft of the drive motor (32). Several stirring rods (33) are fixedly connected to the outer wall of the rotating shaft.

3. The concentration tank for producing a pharmaceutical excipient according to claim 2, wherein The top end of the rotating shaft (31) is coaxially provided with a water intake trough (331), and a number of through holes (332) communicating with the water intake trough (331) are provided on the outer wall of the rotating shaft (31). The bottom end of the liquid extraction pipe (21) extends into the water intake trough (331).

4. The concentration tank for producing a pharmaceutical excipient according to claim 3, wherein The inner bottom wall of the water intake tank (331) is provided with a drainage protrusion (333) with an upper surface that is arc-shaped / conical, and at least one of the perforations (332) is aligned with the lower edge of the drainage protrusion (333).

5. The concentration tank for producing pharmaceutical excipients according to any one of claims 2 to 4, characterized in that, A channel pipe (4) is fixedly installed on the tank cover (11). The top of the channel pipe (4) is connected to the water outlet of the water pump (22) through a pipe. The bottom of the channel pipe (4) is connected to the spray pipe (23). The spray pipe (23) is rotatably connected to the channel pipe (4) through a bearing.

6. The concentration tank for producing a pharmaceutical excipient according to claim 5, wherein The driving component includes a connecting cylinder (5), the top end of which is fixedly connected to the outer wall of the spray pipe (23), the bottom end of which has a polygonal cross section, and the bottom end of which is inserted into the rotating shaft (31). The connecting cylinder (5) has several connecting holes (51).