Anti-sticking dry-method granulator

Abstract

The utility model discloses an anti-sticking dry-method granulator, which relates to the technical field of dry-method granulation, and comprises a granulator, the upper end of the granulator is provided with a cylindrical frame communicated with the interior of the granulator, the cylindrical frame is fixedly connected with a feeding frame, a support frame is arranged above the feeding frame, the support frame is fixedly connected to the upper end of the granulator, and the upper end of the granulator is provided with a plurality of air holes. A rotating rod located in the feeding frame is arranged in the supporting frame, a motor is fixedly connected to the upper end of the supporting frame, the output shaft end of the motor penetrates through the supporting frame and is connected with the rotating rod, the lower end of the rotating rod is fixedly sleeved with a spiral blade, and the spiral blade is located in a cylindrical frame; two connecting rods connected with the rotating rod are arranged above the spiral blade, the other ends of the two connecting rods are both fixedly connected with scrapers, the spiral blade and the scrapers are introduced to optimize the material path, gear damage is avoided, meanwhile, a cleaning system is additionally arranged to effectively remove residual materials, and therefore the granulation quality is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of dry granulation technology, and in particular to an anti-sticking dry granulation machine. Background Technology

[0002] Dry granulation is a widely used process technology in the pharmaceutical, chemical, and food industries. It involves mixing drug and excipient powders evenly, then using mechanical pressure to extrude them into blocks or flakes between rollers, and finally crushing them into granules through a sieve.

[0003] A Chinese patent with publication number CN220940425U, entitled "A Dry Granulator with a Cleanable Feed Inlet," includes a granulator body with a cover on its upper side and a feed hopper fixed inside the cover. It also includes a cleaning mechanism positioned above the cover. This invention utilizes a driving bevel gear to rotate, which in turn drives multiple connecting rods to rotate synchronously. These connecting rods then drive multiple crushing teeth to stir and break up clumps of raw materials. Multiple brushes simultaneously scrape the inner wall of the feed hopper, preventing material adhesion and ensuring proper feeding. Spiral blades feed the broken-up material, preventing clogging of the feed inlet. However, this patent has several drawbacks. The driving and driven bevel gears are both located at the feed inlet, which can cause powdery mixtures to fall into the meshing area of ​​the gears, causing damage. Furthermore, the lack of a cleaning mechanism leads to residue buildup, affecting subsequent granulation. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an anti-sticking dry granulation machine.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A non-stick dry granulation machine includes a granulator. A cylindrical frame communicating with the interior of the granulator is mounted on its upper end. A feed frame is fixedly connected to the upper part of the cylindrical frame. A support frame is located above the feed frame and fixedly connected to the upper end of the granulator. A rotating rod located inside the feed frame is located inside the support frame. A motor is fixedly connected to the upper end of the support frame. The output shaft of the motor passes through the support frame and is connected to the rotating rod. A helical blade is fixedly sleeved on the lower end of the rotating rod. The helical blade is located inside the cylindrical frame. Two connecting rods connected to the rotating rod are located above the helical blade. Scrapers are fixedly connected to the other ends of the two connecting rods, and both scrapers are located inside the feed frame.

[0007] As a further improvement of this utility model, the lower end of the granulator is fixedly connected with multiple casters, and each of the multiple casters is equipped with a self-locking device.

[0008] As a further improvement of this utility model, the granulator is provided with an observation port, and an explosion-proof glass plate is installed inside the observation port.

[0009] As a further improvement of this utility model, a water sprayer connected to a support frame is provided on one side of the motor. The output end of the water sprayer passes through the support frame and is located above the feed frame. A water pump is fixedly connected to one side of the support frame. A connecting pipe is connected to the output end of the water pump. The other end of the connecting pipe is connected to the water sprayer.

[0010] As a further improvement of this utility model, the water sprayer is supported by a support column, which is fixedly connected to the upper end of the support frame.

[0011] As a further improvement of this utility model, the feed frame has a conical structure and the scraper has an irregular shape, with the scraping side fitting against the inner wall of the feed frame.

[0012] The beneficial effects of this utility model are:

[0013] By introducing the design of spiral blades and scrapers, the path of material entering the pellet mill is changed, so that the material no longer passes directly through the meshing point of the driving bevel gear and the driven bevel gear, thereby avoiding damage to the gears by the powder mixture and reducing maintenance and replacement costs.

[0014] By incorporating a cleaning system consisting of a water sprayer, a water pump, and connecting pipes, the inside of the feed frame can be rinsed after granulation, effectively removing residual material. This improvement solves the problem of mixture residue caused by the lack of a cleaning mechanism, ensuring the quality and efficiency of subsequent granulation.

[0015] This invention optimizes the material path by introducing spiral blades and scrapers to avoid gear damage, and adds a cleaning system to effectively remove residual materials, thereby ensuring granulation quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an anti-sticking dry granulation machine proposed in this utility model;

[0017] Figure 2 This is a partial cross-sectional structural diagram of the support frame, water pump, connecting pipe, water sprayer, motor, feed frame, rotating rod, spiral blade, scraper, connecting rod, and column frame connection of an anti-sticking dry granulator proposed in this utility model.

[0018] Figure 3This utility model presents a schematic diagram of the connection between a water pump, connecting pipe, water sprayer, motor, feed frame, and support column in an anti-sticking dry granulator.

[0019] In the diagram: 1. Granulator, 2. Casters, 3. Observation port, 4. Support frame, 5. Water pump, 6. Connecting pipe, 7. Water sprayer, 8. Motor, 9. Feed frame, 10. Rotary rod, 11. Spiral blade, 12. Scraper, 13. Connecting rod, 14. Support column, 15. Column frame. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Figures 1-3 A non-stick dry granulation machine includes a granulator 1. The granulator 1 has an observation port 3 with an explosion-proof glass plate installed inside, allowing for observation of the internal working conditions without opening the granulator 1, ensuring safety. Multiple casters 2 are fixedly connected to the lower end of the granulator 1 for easy movement and positioning. Each caster 2 has a self-locking device to ensure stability during operation. A cylindrical frame 15, communicating with the interior of the granulator 1, is installed at the upper end to guide material into the granulator 1. A feed frame 9, with a conical structure, is fixedly connected to the upper part of the cylindrical frame 15 to facilitate concentrated material falling and reduce blockage. A support frame 4 is located above the feed frame 9, fixedly connected to the upper end of the granulator 1 to provide support for the internal structure. Inside the frame 4 is a rotating rod 10 located inside the feed frame 9. The rotating rod assists in material handling. The upper end of the support frame 4 is fixedly connected to a motor 8. The output shaft of the motor 8 passes through the support frame 4 and is connected to the rotating rod 10 to provide rotational power. A spiral blade 11 is fixedly sleeved on the lower end of the rotating rod 10. The spiral blade 11 is located inside the cylindrical frame 15. The rotating blade effectively transmits materials and prevents materials from accumulating during transmission. Above the spiral blade 11 are two connecting rods 13 connected to the rotating rod 10 for fixing and transmitting motion. The other end of each of the two connecting rods 13 is fixedly connected to a scraper 12. The rotation of the scraper 12 not only scrapes away residual materials on the inner wall of the feed frame 9, but also ensures that the materials are scraped off evenly through its irregular structure design, avoiding excessive wear or insufficient scraping in some areas.

[0022] A water sprayer 7 connected to a support frame 4 is provided on one side of the motor 8 for cleaning. The water sprayer 7 is supported by a support column 14 to ensure stable operation. The support column 14 is fixedly connected to the upper end of the support frame 4. The output end of the water sprayer 7 passes through the support frame 4 and is located above the feed frame 9, directly rinsing the inside of the feed frame 9 to remove residual materials. A water pump 5 is fixedly connected to one side of the support frame 4. The output end of the water pump 5 is connected to a connecting pipe 6, and the other end of the connecting pipe 6 is connected to the water sprayer 7.

[0023] When using this utility model, when the worker feeds material into the pellet mill 1, the drive motor 8 first drives the rotating rod 10 to rotate, which in turn drives the two scrapers 12 to rotate. The two scrapers 12 scrape off the material remaining on the feed frame 9 and make it fall downwards. At the same time, the spiral blades 11 below will also transport the material as the rotating rod 10 rotates. After pelleting is completed, the water pump 5 is connected to an external water source, and then the water pump 5 is started to pump water into the sprayer 7 to rinse the inside of the feed frame 9.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A non-sticking dry granulation machine, comprising a granulator (1), characterized in that, The pellet mill (1) is equipped with a cylindrical frame (15) that communicates with its interior. A feed frame (9) is fixedly connected to the top of the cylindrical frame (15). A support frame (4) is provided above the feed frame (9). The support frame (4) is fixedly connected to the top of the pellet mill (1). A rotating rod (10) located inside the feed frame (9) is provided inside the support frame (4). A motor (8) is fixedly connected to the top of the support frame (4). The output shaft of the motor (8) passes through the support frame (4) and is connected to the rotating rod (10). A spiral blade (11) is fixedly sleeved on the lower end of the rotating rod (10). The spiral blade (11) is located inside the cylindrical frame (15). Two connecting rods (13) connected to the rotating rod (10) are provided above the spiral blade (11). Scrapers (12) are fixedly connected to the other ends of the two connecting rods (13). The two scrapers (12) are located inside the feed frame (9).

2. The anti-sticking dry granulator according to claim 1, characterized in that, The lower end of the pellet mill (1) is fixedly connected to a plurality of casters (2), and each caster (2) is equipped with a self-locking device.

3. The anti-sticking dry granulator according to claim 1, characterized in that, The granulator (1) is provided with an observation port (3), and an explosion-proof glass plate is installed inside the observation port (3).

4. The anti-sticking dry granulator according to claim 1, characterized in that, The motor (8) has a water sprayer (7) connected to a support frame (4) on one side. The output end of the water sprayer (7) passes through the support frame (4) and is located above the feed frame (9). A water pump (5) is fixedly connected to one side of the support frame (4). The output end of the water pump (5) is connected to a connecting pipe (6). The other end of the connecting pipe (6) is connected to the water sprayer (7).

5. The anti-sticking dry granulator according to claim 4, characterized in that, The water sprayer (7) is supported by a support column (14), which is fixedly connected to the upper end of the support frame (4).

6. The anti-sticking dry granulator according to claim 1, characterized in that, The feed frame (9) has a conical structure, and the scraper (12) has an irregular shape, with the scraping side fitting against the inner wall of the feed frame (9).

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