Chemical pharmaceutical granulator

Abstract

The utility model discloses a chemical pharmacy granulator relates to granulator technical field, including granulator main part, the granulator main part includes material bin, the material bin inside mounting has sieve plate and a plurality of pressure wheels, the pressure wheel is located above sieve plate, the material bin top is installed with scraping mechanism, the scraping mechanism includes annular gear ring cover, the inside swing joint of annular gear ring cover has the gear ring, the gear ring bottom fixedly connected with a plurality of long scraper and a plurality of short scraper, through installing a scraping mechanism on material bin, there are a plurality of long scraper and a plurality of short scraper in scraping mechanism and extend into material bin and contact with material bin inner wall, when motor and gear drive gear ring rotate, long scraper and short scraper will follow the rotation of gear ring and scrape along material bin inner wall, thereby the material that adheres residual on material bin inner wall is scraped off and is fully utilized, effectively improve the resource utilization, avoid waste, use very convenient.

Description

Technical Field

[0001] This utility model relates to the field of pellet mill technology, and in particular to a chemical pharmaceutical pellet mill. Background Technology

[0002] Pelletizers are frequently used in chemical and pharmaceutical manufacturing. The working principle of a pharmaceutical pelletizer mainly involves compressing powder into granules using mechanical force, without the addition of any liquid binders or wetting agents. This process relies primarily on the powder's own adhesion and friction, achieving granulation through specific pressure and shear forces. Pharmaceutical pelletizers typically consist of a feeding system, pressure rollers, a screen, and a collector. During operation, powder is fed into the machine and compressed by the rotation of the pressure rollers, subsequently passing through the screen to form granules of the desired size.

[0003] In the existing technology, when using granulation to make medicine, the raw materials need to be introduced into the material silo first, and then gradually granulated. After the raw materials accumulate in the material silo and are used continuously, some residual raw materials will inevitably adhere to the inner wall of the material silo and cannot fall off naturally, resulting in insufficient utilization of raw materials and waste of resources.

[0004] To address the aforementioned problems, this application proposes a chemical pharmaceutical pellet mill. Utility Model Content

[0005] This utility model provides a chemical pharmaceutical granulator to solve the above-mentioned technical problems.

[0006] To solve the above-mentioned technical problems, this utility model provides a chemical pharmaceutical pellet mill, including a pellet mill body. The pellet mill body includes a material bin, inside which a sieve plate and multiple pressure rollers are installed. The pressure rollers are located above the sieve plate. A scraping mechanism is installed on the top of the material bin. The scraping mechanism includes an annular toothed ring cover. A toothed ring is movably connected inside the annular toothed ring cover. Multiple long scrapers and multiple short scrapers are fixedly connected to the bottom of the toothed ring. The multiple long scrapers and multiple short scrapers are staggered. The short scrapers are located above the pressure rollers, and the long scrapers are located between two adjacent pressure rollers.

[0007] Preferably, the bottom of the annular toothed cover has an opening, and both the long scraper and the short scraper pass through the opening, with the sides of both the long scraper and the short scraper in contact with the inner wall of the material bin.

[0008] Preferably, a gear cover is integrally formed and connected to one side of the annular toothed ring cover, and the annular toothed ring cover and the gear cover are internally connected.

[0009] Preferably, a motor is fixedly connected to the bottom of the gear cover, the motor is located on one side of the material bin, and a gear is fixedly connected to the output shaft of the motor. The gear is located inside the gear cover, and the gear and the gear ring mesh with each other.

[0010] Preferably, the bottom of the annular toothed ring cover is fixedly connected with multiple mounting ears, which are arranged in a circular array around the central axis of the annular toothed ring cover. The mounting ears are fixedly connected to the outer wall of the material bin by bolts, and the annular toothed ring cover is fixedly connected to the top of the material bin by the mounting ears.

[0011] Compared with related technologies, the chemical and pharmaceutical granulator provided by this utility model has the following beneficial effects:

[0012] By installing a scraping mechanism on the material silo, which has multiple long and short scrapers that extend into the silo and contact the inner wall, the long and short scrapers scrape against the inner wall of the silo as the motor and gear drive the gear ring to rotate. This scrapes off the residual material adhering to the inner wall of the silo and makes full use of it, effectively improving resource utilization, avoiding waste, and making it very convenient to use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a chemical and pharmaceutical granulator proposed in this utility model;

[0014] Figure 2 This is a schematic diagram of the scraping mechanism of a chemical pharmaceutical granulator proposed in this utility model;

[0015] Figure 3 This is a partial structural diagram of the scraping mechanism of a chemical pharmaceutical granulator proposed in this utility model;

[0016] Figure 4 This is a schematic diagram of the second part of the scraping mechanism of a chemical pharmaceutical granulator proposed in this utility model.

[0017] The following are the labels in the diagram: 1. Pellet mill body, 11. Material bin, 12. Screen plate, 13. Pressure roller, 2. Scraping mechanism, 21. Annular toothed ring cover, 22. Gear cover, 23. Toothed ring, 24. Long scraper, 25. Short scraper, 26. Motor, 27. Gear, 28. Opening, 29. Mounting lug. Detailed Implementation

[0018] Implementation examples, by Figure 1-4The present invention includes a pellet mill body 1, which includes a material bin 11. A screen plate 12 and multiple pressure rollers 13 are installed inside the material bin 11. The pressure rollers 13 are located above the screen plate 12. A scraping mechanism 2 is installed on the top of the material bin 11. The scraping mechanism 2 includes an annular toothed ring cover 21. A toothed ring 23 is movably connected inside the annular toothed ring cover 21. Multiple long scrapers 24 and multiple short scrapers 25 are fixedly connected to the bottom of the toothed ring 23. The multiple long scrapers 24 and multiple short scrapers 25 are staggered. The short scrapers 25 are located above the pressure rollers 13, and the long scrapers 24 are located between two adjacent pressure rollers 13. The pellet mill body 1 is an existing product. The positions and structures of the material bin 11, screen plate 12, and pressure rollers 13, as well as the required drive components, are all existing technologies, and therefore will not be described in detail here.

[0019] The bottom of the annular toothed cover 21 has an opening 28, through which both the long scraper 24 and the short scraper 25 pass. The sides of both the long scraper 24 and the short scraper 25 are in contact with the inner wall of the material bin 11. The opening 28 facilitates the passage of the long scraper 24 and the short scraper 25 and avoids interference between the long scraper 24 and the short scraper 25 and the annular toothed cover 21.

[0020] The annular toothed ring cover 21 is integrally formed with a gear cover 22 on one side. The annular toothed ring cover 21 and the gear cover 22 are internally connected. The gear cover 22 can cover the gear 27 inside, preventing the gear 27 and the toothed ring 23 from being accidentally touched during operation and causing injury to personnel.

[0021] A motor 26 is fixedly connected to the bottom of the gear cover 22. The motor 26 is located on one side of the material bin 11. A gear 27 is fixedly connected to the output shaft of the motor 26. The gear 27 is located inside the gear cover 22, and the gear 27 and the gear ring 23 mesh with each other. The motor 26 can be used as a driving component, and the gear 27 can be used as a transmission component. The two work together to drive the gear ring 23 to rotate. When driving the gear ring 23 to rotate, it does not rotate continuously in one direction, but rotates a certain angle and then returns to its original position, and then continues to rotate a certain angle again, and so on. This ensures that when the long scraper 24 scrapes the material off the inner wall of the material bin 11, it will not interfere with the two adjacent pressure rollers 13.

[0022] The bottom of the annular toothed ring cover 21 is fixedly connected to a plurality of mounting ears 29, which are arranged in a circular array around the central axis of the annular toothed ring cover 21. The mounting ears 29 are fixedly connected to the outer wall of the material bin 11 by bolts. The annular toothed ring cover 21 is fixedly connected to the top of the material bin 11 by the mounting ears 29. The scraping mechanism 2 can be installed and fixed on the material bin 11 by the mounting ears 29.

[0023] Working principle:

[0024] When granulating drug raw materials through the granulator body 1, the raw materials are located inside the material bin 11. As the drug raw materials inside the material bin 11 are continuously consumed, the scraping mechanism 2 can scrape off the raw materials adhering to the inner wall of the material bin 11 that cannot fall off onto the sieve plate 12 for granulation. Specifically, the motor 26 can be started, and the output shaft of the motor 26 drives the gear 27 to rotate. Then, through the meshing transmission between the gear 27 and the gear ring 23, the gear ring 23 can rotate inside the annular gear ring cover 21. The rotation of the gear ring 23 will drive... The long scraper 24 and the short scraper 25 move along the inner wall of the material bin 11. During this time, the long scraper 24 can scrape off the raw material on the part of the inner wall of the material bin 11 located between the two pressure rollers 13, while the short scraper 25 scrapes off the raw material on the part of the inner wall of the material bin 11 located above the pressure rollers 13. After the gear ring 23 rotates a certain angle, it can be driven by the motor 26 and the gear 27 to rotate back to its original position, and then rotate back to the center again. The above reciprocating operation can avoid interference between the long scraper 24 and the pressure rollers 13 when scraping off the raw material attached to the inner wall of the material bin 11.

Claims

1. A chemical pharmaceutical pellet mill, comprising a pellet mill body (1), wherein the pellet mill body (1) includes a material bin (11), wherein a sieve plate (12) and a plurality of pressure rollers (13) are installed inside the material bin (11), wherein the pressure rollers (13) are located above the sieve plate (12), characterized in that: The material bin (11) is equipped with a scraping mechanism (2) on top. The scraping mechanism (2) includes an annular toothed ring cover (21). A toothed ring (23) is movably connected inside the annular toothed ring cover (21). A plurality of long scrapers (24) and a plurality of short scrapers (25) are fixedly connected to the bottom of the toothed ring (23). The plurality of long scrapers (24) and the plurality of short scrapers (25) are staggered. The short scrapers (25) are located above the pressure roller (13), and the long scrapers (24) are located between two adjacent pressure rollers (13).

2. The chemical pharmaceutical pellet mill according to claim 1, characterized in that, The annular toothed cover (21) has an opening (28) at the bottom, and the long scraper (24) and the short scraper (25) both pass through the opening (28). The sides of the long scraper (24) and the short scraper (25) are in contact with the inner wall of the material bin (11).

3. A chemical pharmaceutical pellet mill according to claim 1, characterized in that, The annular toothed ring cover (21) is integrally formed with a gear cover (22) on one side, and the annular toothed ring cover (21) and the gear cover (22) are internally connected.

4. A chemical pharmaceutical pellet mill according to claim 3, characterized in that, A motor (26) is fixedly connected to the bottom of the gear cover (22). The motor (26) is located on one side of the material bin (11). A gear (27) is fixedly connected to the output shaft of the motor (26). The gear (27) is located inside the gear cover (22), and the gear (27) and the gear ring (23) mesh with each other.

5. A chemical pharmaceutical pellet mill according to claim 1, characterized in that, The bottom of the annular toothed ring cover (21) is fixedly connected with multiple mounting ears (29). The multiple mounting ears (29) are arranged in a ring array around the central axis of the annular toothed ring cover (21). The mounting ears (29) are fixedly connected to the outer wall of the material bin (11) by bolts. The annular toothed ring cover (21) is fixedly connected to the top of the material bin (11) by the mounting ears (29).

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