Medicine granulating device

Abstract

The utility model relates to the technical field of medicine granulation, and discloses a medicine granulation device which comprises a stock bin and a rotating roller, supporting legs are supported at the bottom of the stock bin, the rotating roller is rotatably installed on the lower portion inside the stock bin through a rotating shaft, the rotating roller is in transmission connection with a motor installed on the outer surface of the stock bin at the tail end of the rotating roller, and a plurality of stirring rods are evenly fixed to the outer ring of the rotating roller. A discharging port is formed in the bottom of the stock bin, a separation net is fixed in the discharging port, a protruding block attached to the surface of the separation net is integrally arranged at the bottom of the rotating roller, and a liquid spraying pipe is longitudinally fixed to the surface of the inner wall of the upper portion of the stock bin. According to the technical scheme, the plurality of stirring rods are distributed on the outer ring of the rotating roller, the side edge of the rotating roller is integrally provided with the convex block structure, the stirring rods are used for stirring powdery medicament so that the powdery medicament can be agglomerated into blocks, and the bulged blocks are used for extruding the blocky medicament so that the blocky medicament can be divided into particles to be discharged through the separation net. The structure is simpler, and continuous extrusion and efficient granulation work can be realized.

Description

Technical Field

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

[0002] Pharmaceutical granulation is a technique that processes materials in the form of powder, molten liquid, or aqueous solution into granules of a certain shape and size. Granulation technology is not only used in the preparation of pharmaceuticals such as tablets, capsules, and granules, but is also often used to improve drug flowability, prevent component segregation, prevent dust from flying, adjust bulk density, and improve solubility. Common granulation methods include wet granulation, which turns powdered drugs into granules.

[0003] Existing wet granulation machines require agitation of the powder using a stirring device and the spraying of a binder or wetting agent to agglomerate the powder and prepare granules. A cutting blade is also needed to break up any clumps, resulting in a more complex granulation structure and requiring further improvement in granulation efficiency. Therefore, we propose a pharmaceutical granulation device. Utility Model Content

[0004] The purpose of this invention is to provide a pharmaceutical granulation device. By setting multiple stirring rods distributed on the outer ring of the rotating roller, and by providing a raised bump structure on the side of the rotating roller, the stirring rods agitate the powdered medicine, causing it to agglomerate into lumps. The bumps then compress the lumps of medicine, causing them to be separated into granules and discharged through a mesh. The structure is simpler and can perform continuous extrusion and efficient granulation, solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pharmaceutical granulation device, comprising a hopper and a rotating roller. The bottom of the hopper is supported by feet. The rotating roller is rotatably mounted inside the lower part of the hopper via a rotating shaft. The rotating roller is connected to a motor mounted on the outer surface of the hopper at its end. Multiple stirring rods are evenly fixed on the outer ring of the rotating roller. A discharge port is provided at the bottom of the hopper, and a partition is fixed inside the discharge port. The bottom of the rotating roller is also integrally provided with protrusions that contact the surface of the partition. A spray pipe is longitudinally fixed on the upper inner wall surface of the hopper. A nozzle is provided below the spray pipe and communicates with it. An inlet pipe that penetrates to the outside of the hopper is also connected to the side of the spray pipe.

[0006] By adopting the above technical solution, after the powdered medicine is put into the hopper, it will come into contact with the binder and agglomerate into clumps. It will also be agglomerated into clumps quickly by the stirring action of the stirring rod. Then, the protrusions squeeze the agglomerated medicine clumps and make them pass through the mesh, which can efficiently disperse the medicine into granules and discharge them to achieve the purpose of granulation.

[0007] Optionally, multiple sets of stirring rods are evenly arranged in the longitudinal direction of the outer ring of the roller, and the ends of the stirring rods are close to the inner surface of the hopper.

[0008] By adopting the above technical solution, multiple sets of stirring rods can not only achieve better stirring, but also stir up the clumps of medicine stuck to the surface of the mesh again.

[0009] Optionally, spray pipes are fixed on both inner walls of the hopper, and the spray pipes on both sides are at the same height.

[0010] Optionally, multiple nozzles are evenly arranged at the bottom of the spray pipe in the longitudinal direction.

[0011] By adopting the above technical solution, multiple nozzles combined with the spray pipes on both sides can make the adhesive evenly sprayed into the powdered medicine from both sides.

[0012] Optionally, the top of the silo is provided with a feed inlet communicating with its interior, and the feed inlet is located in the middle of the top of the silo.

[0013] By adopting the above technical solution, the powdered medicine is added into the silo from the feed inlet.

[0014] Optionally, an electrically controlled valve is installed on the inlet pipe, and the electrically controlled valve is connected to the inlet pipe.

[0015] By adopting the above technical solution, the opening and closing of the liquid inlet pipe is controlled by an electronically controlled valve.

[0016] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows:

[0017] 1. The technical solution of this application sets multiple stirring rods distributed on the outer ring of the rotating roller, and the side of the rotating roller is also provided with a raised bump structure. The stirring rods are used to agitate the powdered medicine and cause it to agglomerate into lumps. The bumps are used to squeeze the lumps of medicine and cause them to be separated into granules and discharged through the screen. The structure is simpler and can continuously extrude and perform granulation work efficiently.

[0018] 2. The technical solution of this application is to set the end of the stirring rod to contact the inner wall surface of the hopper. The stirring rod can not only stir the medicine, but also scrape up and turn the medicine that is squeezed and stuck to the surface of the mesh, so that the medicine can continue to be squeezed in the future. Attached Figure Description

[0019] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of the pharmaceutical granulation device of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the hopper of the pharmaceutical granulation device of this utility model.

[0022] In the diagram: 1. Hopper; 11. Motor; 12. Feed inlet; 13. Support leg; 2. Rotary roller; 21. Rotary shaft; 22. Stirring rod; 23. Protrusion; 3. Spray pipe; 31. Nozzle; 32. Inlet pipe; 321. Electrically controlled valve; 4. Discharge port; 41. Partition screen. Detailed Implementation

[0023] Please see Figure 1-2 This utility model provides a technical solution: a pharmaceutical granulation device, including a hopper 1 and a rotating roller 2. The bottom of the hopper 1 is supported by support legs 13. Multiple support legs 13 are provided at the bottom of the hopper 1. The multiple support legs 13 are of the same height to support the hopper 1. The top of the hopper 1 is provided with a feed inlet 12 that communicates with its interior. The feed inlet 12 is located at the middle of the top of the hopper 1. The powdered medicine to be granulated can be fed into the hopper 1 through the feed inlet 12.

[0024] Spray pipes 3 are fixed longitudinally on the upper inner wall surface of both sides of the silo 1. The spray pipes 3 on both sides are at the same height, and a nozzle 31 connected to the spray pipe 3 is provided below it. The nozzle 31 is inclined towards the middle of the silo 1, and multiple nozzles 31 are evenly arranged in the longitudinal direction at the bottom of the spray pipe 3. The side of the spray pipe 3 is also connected to an inlet pipe 32 that extends to the outside of the silo 1. An electric control valve 321 is installed on the inlet pipe 32 and is connected to the inlet pipe 32.

[0025] When in use, the liquid inlet pipe 32 is connected to the adhesive supply pipe. When the electric control valve 321 is opened, the adhesive can enter the spray pipe 3 from the liquid inlet pipe 32 and be sprayed into the hopper 1 from the nozzle 31.

[0026] The rotating roller 2 is placed inside the lower part of the hopper 1. The rotating roller 2 is rotatably installed inside the lower part of the hopper 1 via the rotating shaft 21. The rotating roller 2 is connected to the motor 11 installed on the outer surface of the hopper 1 at its end. Multiple stirring rods 22 are evenly fixed on the outer ring of the rotating roller 2. When the motor 11 drives the rotating roller 2 to rotate, the stirring rods 22 also rotate, which has a stirring effect on the powder, so that it can fully react with the binder and agglomerate into a block.

[0027] A discharge port 4 is provided at the bottom of the hopper 1, and a partition 41 is fixed inside the discharge port 4. The bottom of the roller 2 is also provided with protrusions 23 that are in contact with the surface of the partition 41. The lumps of medicine can be squeezed by the protrusions 23 and pass through the partition 41. The partition 41 disperses the lumps of medicine into granules and discharges them. In order to prevent the powder medicine from being discharged through the partition 41 before it clumps together, the adhesive needs to be sprayed into the hopper 1 first, and then the powder medicine is added so that the powder medicine can quickly clump together and reduce the amount of powder medicine leaking out of the discharge port 4.

[0028] In addition, multiple sets of stirring rods 22 are evenly arranged in the longitudinal direction of the outer ring of the roller 2. The ends of the stirring rods 22 are close to the inner surface of the hopper 1. The multiple sets of stirring rods 22 can not only better agitate, but also stir up the clumps of medicine that are stuck to the surface of the mesh 41 again, so that the medicine can continue to be extruded and granulated in the future.

[0029] In use, the inlet pipe 32 is connected to the adhesive supply pipe. The motor 11 and the electrically controlled valve 321 are both connected to the control equipment. Before the powdered agent is fed into the silo 1, the motor 11 is started to drive the roller 2 to rotate, and the electrically controlled valve 321 is opened to supply adhesive to the spray pipe 3. Then, the powdered agent is fed into the silo 1 through the inlet 12. Because the adhesive has been sprayed into the silo 1 beforehand, the powdered agent entering the silo 1 will come into contact with the adhesive and clump together. It will then be agitated and turned by the stirring rod 22 driven by the rotating roller 2, causing more powder to mix with the adhesive. When the adhesive comes into contact and clumps together, when the protrusion 23 of the roller 2 rotates to the bottom of the hopper 1, the clumped medicine is pushed to the position of the partition 41 and squeezed by the protrusion 23, causing the clumped medicine to act on the partition 41. The medicine is discharged in granular form after passing through the partition 41, and can be further processed by drying. Some powdered medicine is discharged together, which can be filtered and put back into the hopper 1. When the stirring rod 22 rotates, it can scrape up and turn the medicine that is squeezed and stuck to the surface of the partition 41 again, so that the medicine can continue to be squeezed in the future.

Claims

1. A pharmaceutical granulation apparatus, comprising a hopper (1) and a rotating roller (2), wherein the bottom of the hopper (1) is supported by legs (13), characterized in that: The rotating roller (2) is rotatably installed inside the lower part of the hopper (1) via the rotating shaft (21). The rotating roller (2) is connected to the motor (11) installed on the outer surface of the hopper (1) at its end. Multiple stirring rods (22) are evenly fixed on the outer ring of the rotating roller (2). The bottom of the hopper (1) is provided with a discharge port (4), and a partition net (41) is fixed inside the discharge port (4). The bottom of the rotating roller (2) is also provided with a protrusion (23) that contacts the surface of the partition net (41). A spray pipe (3) is longitudinally fixed on the upper inner wall surface of the silo (1). A nozzle (31) connected to the spray pipe (3) is provided below it. An inlet pipe (32) that penetrates to the outside of the silo (1) is also connected to the side of the spray pipe (3).

2. The pharmaceutical granulating apparatus according to claim 1, characterized by: Multiple sets of stirring rods (22) are evenly arranged in the longitudinal direction of the outer ring of the roller (2), and the end of the stirring rod (22) is close to the inner surface of the hopper (1).

3. The pharmaceutical granulating apparatus according to claim 1, characterized by: The inner walls of both sides of the silo (1) are fixed with spray pipes (3), and the height of the spray pipes (3) on both sides is the same.

4. The pharmaceutical granulating apparatus according to claim 3, characterized by: The nozzles (31) at the bottom of the spray pipe (3) are evenly arranged in the longitudinal direction.

5. The pharmaceutical granulating apparatus according to claim 1, characterized by: The top of the silo (1) is provided with a feed inlet (12) that communicates with its interior, and the feed inlet (12) is located in the middle of the top of the silo (1).

6. The pharmaceutical granulating apparatus according to claim 1, characterized by: An electrically controlled valve (321) is installed on the liquid inlet pipe (32), and the electrically controlled valve (321) is connected to the liquid inlet pipe (32).

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