Adjustable wet mixing granulator

Abstract

The utility model discloses an adjustable wet mixing granulator which comprises a rack, a granulating pot is arranged on the rack, a stirring shaft is arranged in the granulating pot, a cutting knife is arranged on the granulating pot, a pot cover is arranged on the granulating pot, a slurry adding device is arranged on the pot cover, a discharging pipe is arranged on the granulating pot, and a first telescopic electric cylinder is arranged on the pot cover. The output end of the first telescopic electric cylinder is provided with a rotating motor, the output end of the rotating motor is connected with a filtering disc, the filtering disc is of a hollow structure, a plurality of filtering holes are formed in the surface of the filtering disc in a penetrating mode, an opening is formed in the bottom of the filtering disc, and a discharging pipe is arranged at the bottom of the granulating pot in a penetrating mode and connected to the rack; a discharging port is formed in the upper portion of the discharging pipe, the discharging pipe is vertically and movably sleeved with a movable cover, the bottom face of the movable cover is connected with one end of a spring, the other end of the spring is connected to the discharging pipe, the filtering disc is driven by the rotating motor to rotate, the mobility of medicine particles on the filtering disc is improved, the filtering efficiency is improved, and material blocking is prevented.

Description

Technical Field

[0001] This utility model relates to the field of granulator technology, and in particular to an adjustable wet mixing granulator. Background Technology

[0002] In wet granulation equipment, the granulation principle of the high-speed mixing granulator is as follows: the mixing and granulation processes are completed in the same container. A downward swirling agitator is used, with the agitator installed at the bottom of the pot and forming a gap with the bottom. The agitator blades ensure that the material is dispersed into a semi-fluid tumbling state through collision, achieving thorough mixing. As the binder is injected, the powder gradually becomes wet, and the shape of the material changes. The shredder located on the horizontal axis of the pot wall and the rotation of the agitator generate vortices, which allow the material to be fully mixed, tumbled, and collided. At this time, the shredder, which is located in the area where the material must tumble, can fully break the clumps of material into granules. At the same time, the extrusion, collision, friction, shearing, and kneading between the particles in the three-dimensional motion of the material make the particle friction more uniform and fine, ultimately forming stable spherical particles.

[0003] The prior art discloses a wet mixing granulator, with the publication number CN116571342B. A drive assembly lowers the filter cylinder and filter plate to contact the upper surface of the stirring shaft, closing the bottom opening of the filter cylinder. The initially formed granules fall onto the filter plate during the tumbling process. After filtration, material of the qualified particle size enters the inner side of the filter cylinder. The filter holes on the side wall of the filter cylinder further filter out particles smaller than the qualified particle size. The filtered particles re-enter the reaction tank. Finally, after all the materials in the reaction tank have reacted, the process continues. However, in actual use, because the filter plate and filter cylinder are fixed and do not rotate, granules of different sizes falling onto the filter plate have poor mobility and are not easy to roll and slide through the filter holes into the filter cylinder, affecting filtration efficiency. Furthermore, the fixed filter plate and filter cylinder are prone to clogging. Utility Model Content

[0004] In view of the above-mentioned prior art, the present invention provides an adjustable wet mixing pellet mill, which mainly solves the above-mentioned technical problems.

[0005] To achieve the above objectives, the technical solution of this utility model embodiment is implemented as follows:

[0006] An adjustable wet mixing pellet mill includes a frame, on which a pelletizing pot is mounted. A stirring shaft with a stirring paddle is rotatably connected to the bottom of the pelletizing pot. A cutting blade is rotatably connected to one side of the pelletizing pot. The pelletizing pot has a lid, through which a slurry feeder is installed. The pelletizing pot has a discharge pipe. A first telescopic electric cylinder is mounted on the lid. A rotary motor is installed at the output end of the first telescopic electric cylinder. A filter disc is connected to the output end of the rotary motor. The filter disc has a hollow structure with several filter holes perforated on its surface. The bottom of the filter disc is open. A discharge pipe is perforated at the bottom of the pelletizing pot and connected to the frame. The upper end of the discharge pipe is sealed, and the lower end is open. A discharge port is located at the top of the discharge pipe. A movable cover is fitted onto the discharge pipe, and one end of a spring is connected to the bottom surface of the movable cover. The other end of the spring is connected to the discharge pipe.

[0007] Furthermore, a first gear is rotatably connected through the bottom of the granulation pot, the stirring shaft is connected to the upper part of the first gear, the first gear meshes with a second gear, the second gear is installed at the bottom of the granulation pot, and a reduction motor is provided inside the frame, the output end of the reduction motor is connected to the second gear.

[0008] Furthermore, the discharge pipe is installed through the first gear, and a fixed frame is provided inside the frame, with the discharge pipe connected to the fixed frame.

[0009] Furthermore, the discharge pipe is provided with a washer ring, the washer ring is fixedly connected to the upper end of the discharge pipe, and the spring is fixedly connected to the washer ring.

[0010] Furthermore, the washer ring is provided with a pad block.

[0011] Furthermore, the fixing frame is provided with a connecting pipe, one end of which is connected to the discharge pipe and the other end is connected to the discharge pipe.

[0012] Furthermore, the frame is equipped with a material bin, which is connected to the feed pipe via a pump. The feed pipe passes through the pot lid and connects to the granulation pot.

[0013] Furthermore, the top of the discharge pipe is provided with a first inclined surface.

[0014] Furthermore, the movable cover is equipped with a protective cover, which is narrower at the top and wider at the bottom.

[0015] Furthermore, the movable cover is provided with a second inclined surface.

[0016] The beneficial effects of this utility model are as follows: After the slurry dispenser completes the spraying of the adhesive, the first telescopic electric cylinder is driven to lower the filter disc into the discharge pipe and press down the movable cover until it extends into the discharge port and into the filter disc. This allows the target particle size particles to easily enter the discharge port and be discharged, while fine powder particles fall from the filter holes back into the granulation pot to be stirred, mixed, and granulated again. The rotary motor drives the filter disc to rotate, improving the fluidity of the particles on the filter disc, allowing the particles to fall into the filter disc better. Larger particles fall back into the granulation pot for regranulation, avoiding material blockage. The particles that enter the filter disc are also filtered by rotating the filter disc, allowing smaller particles to fall out from the lower filter hole and regranulate in the movable granulation pot. Particles of the target particle size slide down the inner surface of the cavity and enter the discharge port for discharge. After granulation, the filter disc is raised, and the movable cover rises back under the elastic force of the spring to cover the discharge port. The structure is reasonable. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an adjustable wet mixing pellet mill according to an embodiment of this application;

[0018] Figure 2 This is an enlarged view of point A in an embodiment of this application;

[0019] Figure 3 This is a cross-sectional schematic diagram of an adjustable wet mixing pellet mill according to an embodiment of this application;

[0020] Figure 4 This is an enlarged schematic diagram of section B in the embodiments of this application;

[0021] Figure 5 This is a schematic diagram of the structure of the discharge pipe in an embodiment of this application;

[0022] Figure 6 This is a schematic diagram of the structure of the discharge pipe and filter disc in an embodiment of this application;

[0023] Figure 7 This is an enlarged schematic diagram of point C in the embodiments of this application;

[0024] Figure 8 This is a schematic diagram of the structure of the protective cover in an embodiment of this application;

[0025] Explanation of icon numbers:

[0026] 1. Frame; 2. Granulation pot; 3. Agitator; 4. Agitator shaft; 5. Cutting transmission housing; 6. Cutting shaft; 7. Second telescopic electric cylinder; 8. Sealing block; 9. Cutting blade; 10. Pot lid; 11. Slurry feeder; 12. Discharge pipe; 13. First telescopic electric cylinder; 14. Rotary motor; 15. Filter disc; 16. Filter holes; 17. Opening; 18. Discharge pipe; 19. Discharge port; 20. Movable cover; 21. Spring; 22. First gear; 23. Second gear; 24. Gearbox; 25. Fixing frame; 26. Washer ring; 27. Pad block; 28. Connecting pipe; 29. ​​Material box; 30. Feed pipe; 31. First inclined plane; 32. Protective cover; 33. Second inclined plane. Detailed Implementation

[0027] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in this specification of this utility model is for the purpose of describing particular embodiments only and is not intended to limit the utility model. In the following description, the expression "some embodiments" refers to a subset of all possible embodiments; however, it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with each other without conflict.

[0028] It should also be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "inner," "outer," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0029] Example 1

[0030] See attached document Figure 1-8This application provides an adjustable wet mixing granulator, including a frame, a granulation pot mounted on the frame, a stirring shaft with a stirring paddle rotatably connected to the bottom of the granulation pot for stirring materials, a cutting blade rotatably connected to one side of the granulation pot, a cutting drive housing connected to a cutting shaft, the cutting blade mounted on the cutting shaft, and the cutting drive housing driving the cutting blade to rotate and cut materials, a lid with a slurry feeder penetrating the lid for adding binders, a discharge pipe for discharging prepared drug granules, and a second telescopic electric cylinder connected to... The granulation pot includes a blocking block for both blocking and opening the discharge path. A first telescopic electric cylinder is mounted on the pot lid, with a rotary motor at its output. The output of the rotary motor is connected to a filter disc, which comprises an upper filter surface and a lower filter surface, both inclined in opposite directions. The upper and lower filter surfaces can be welded together to form a single unit. The filter disc has a hollow structure, with several filter holes perforated on its surface for filtering drug particles. The size of these holes can be slightly larger than the set biological particle size of the drug, allowing particles of the same or slightly smaller size to pass through and enter the granulation pot, while larger particles cannot enter. The bottom of the filter disc is open, and the bottom of the granulation pot is perforated. The machine is equipped with a discharge pipe, which is fixedly connected to the frame. The upper end of the discharge pipe is sealed, and the lower end is open. The upper part of the discharge pipe has a discharge port, which can be one or more, preferably five, arranged in a circumferential array on the discharge pipe. The discharge pipe is fitted with a movable cover that moves up and down and fits snugly against the discharge port. The movable cover is used to cover the discharge port. One end of a spring is fixedly connected to the bottom surface of the movable cover, and the other end of the spring is connected to the discharge pipe. Under normal conditions, the spring lifts the movable cover to block the discharge port. During operation, before the material begins to be stirred and crushed, the filter plate is positioned above the inside of the granulation pot. After the material is added to the granulation pot, the stirring shaft is rotated to stir and mix it. When the slurry feeder completes the mixing of the binder... After spraying, the first telescopic electric cylinder is driven to lower the filter disc, allowing the opening to fit into the discharge pipe. The bottom surface of the filter disc presses against the movable cover as it descends until the discharge port extends into the filter disc. Preferably, there is a certain distance between the lowest surface of the discharge port and the lowest surface of the filter disc's inner cavity, allowing target-size particles to easily enter and exit the discharge port. Fine powder particles fall from the filter holes back into the granulation pot to be stirred, mixed, and granulated again. The particles, after being stirred and cut, fall onto the filter disc. The rotary motor drives the filter disc to rotate, allowing target-size particles and particles smaller than the target size to fall more effectively into the filter disc, while larger particles fall back into the granulation pot for regranulation.To avoid clogging, the rotating filter disc fully utilizes all sides of its surface for filtration of the drug particles. Rotation also increases particle flowability on the filter disc, improving efficiency. Drug particles entering the filter disc are also filtered by the rotating disc, causing smaller particles to fall out through the lower filter holes and be re-granulated in the granulation pot. Particles of the target size slide down the inner surface of the cavity and exit through the discharge port. After granulation, the filter disc is raised, and the remaining drug particles are discharged through the discharge pipe. The movable cover, under the elastic force of a spring, rises back to cover the discharge port. The structure is rationally designed.

[0031] Preferably, a first gear is rotatably connected through the bottom of the granulation pot, and the stirring shaft is fixedly connected to the upper part of the first gear. The first gear meshes with a second gear, which is installed at the bottom of the granulation pot. A reduction motor is provided inside the frame, and the output end of the reduction motor is connected to the second gear. The reduction motor drives the second gear to rotate, and the meshing transmission between the second gear and the first gear drives the stirring shaft to rotate and stir. The structure is simple.

[0032] Preferably, the discharge pipe is installed through the first gear, and a fixing frame is provided inside the frame. The discharge pipe is connected to the fixing frame, and the discharge pipe is fixed by the fixing frame, making the structure more stable.

[0033] Example 2

[0034] See attached document Figure 1-8 The difference between this embodiment and Embodiment 1 is that the discharge pipe is provided with a gasket, which is fixedly connected to the upper end of the discharge pipe. The gasket can play a sealing role to prevent the powder from entering the gap between the discharge pipe and the first gear, which would cause jamming. The spring is fixedly connected to the gasket to realize the installation and fixation of the spring.

[0035] Preferably, the pad ring is provided with a pad block, which is used to hard limit the movable cover so that the depth of the movable cover descending each time is basically the same. This is beneficial for accurately determining the gap between the discharge port and the inside of the filter disc, improving the filtration of target particle size, and the structure is reasonable.

[0036] Preferably, the fixing frame is provided with a connecting pipe, one end of which is connected to the discharge pipe and the other end is connected to the discharge pipe. The medicine particles discharged from the discharge pipe are transferred to the discharge pipe through the connecting pipe for discharge, which facilitates unified collection.

[0037] Preferably, the frame is equipped with a material bin, which is connected to the feed pipe via a pump. The feed pipe passes through the pot lid and connects to the granulation pot. The material is stored in the material bin for later use. When additional material is needed, the pump pumps the material into the granulation pot, which facilitates automatic feeding and relatively precise control of the amount of material added.

[0038] Preferably, the top of the discharge pipe is provided with a first inclined surface to facilitate the insertion of the filter disc into the discharge pipe.

[0039] Preferably, the movable cover is equipped with a protective cover, which is narrower at the top and wider at the bottom, and has a trapezoidal sloping surface. The bottom of the protective cover is hollowed out to avoid gaps with the parts below. The protective cover prevents materials from sticking to the spring and affecting its use. At the same time, the narrower top and wider bottom design makes it easy for particles filtered from the filter plate to fall back into the granulation pot for re-reaction, resulting in a reasonable structure.

[0040] Preferably, the movable cover has a second inclined surface, which further improves the way particles filtered from inside the filter disc fall back into the granulation pot, resulting in a reasonable structure.

[0041] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. The protection scope of this utility model should be determined by the protection scope of the stated claims.

Claims

1. An adjustable wet mixing pellet mill, comprising a frame, a pelletizing pot mounted on the frame, a stirring shaft with a stirring paddle rotatably connected to the bottom of the pelletizing pot, a cutting blade rotatably connected to one side of the pelletizing pot, a pot lid, a slurry feeder extending through the pot lid, and a discharge pipe, characterized in that, The pot lid is equipped with a first telescopic electric cylinder, the output end of which is equipped with a rotary motor. The output end of the rotary motor is connected to a filter disc. The filter disc has a hollow structure, and several filter holes are opened through its surface. The bottom of the filter disc is open. A discharge pipe is provided through the bottom of the granulation pot. The discharge pipe is connected to the frame. The upper end of the discharge pipe is sealed, and the lower end is open. The upper part of the discharge pipe is equipped with a discharge port. A movable cover is fitted onto the discharge pipe. One end of a spring is connected to the bottom surface of the movable cover, and the other end of the spring is connected to the discharge pipe.

2. The adjustable wet mixing pellet mill according to claim 1, characterized in that, A first gear is rotatably connected through the bottom of the granulation pot. The stirring shaft is connected to the upper part of the first gear. The first gear meshes with a second gear, which is installed at the bottom of the granulation pot. A reduction motor is provided inside the frame, and the output end of the reduction motor is connected to the second gear.

3. An adjustable wet mixing pellet mill according to claim 2, characterized in that, The discharge pipe is installed through the first gear, and a fixed frame is provided inside the frame, with the discharge pipe connected to the fixed frame.

4. An adjustable wet mixing pellet mill according to claim 1, characterized in that, The discharge pipe is provided with a gasket, the gasket is fixedly connected to the upper end of the discharge pipe, and the spring is fixedly connected to the gasket.

5. An adjustable wet mixing pellet mill according to claim 4, characterized in that, The washer ring is provided with a pad.

6. An adjustable wet mixing pellet mill according to claim 3, characterized in that, The fixed frame is equipped with a connecting pipe, one end of which is connected to the discharge pipe and the other end is connected to the discharge pipe.

7. An adjustable wet mixing pellet mill according to claim 1, characterized in that, The frame is equipped with a material box, which is connected to the feed pipe via a pump. The feed pipe passes through the pot lid and connects to the granulation pot.

8. An adjustable wet mixing pellet mill according to claim 1, characterized in that, The top of the discharge pipe is provided with a first inclined surface.

9. An adjustable wet mixing pellet mill according to claim 1, characterized in that, The movable cover is equipped with a protective shield, which is narrower at the top and wider at the bottom.

10. An adjustable wet mixing pellet mill according to claim 1, characterized in that, The movable cover has a second inclined surface.

Images