Dry granulation equipment

Abstract

The utility model provides dry granulation equipment which comprises a frame body, driving chains are arranged on the two sides of the upper end of the frame body, a driving motor used for driving the driving chains to move is installed on the frame body, a plurality of granulation plates are connected between the two driving chains, a plurality of granulation holes are formed in each granulation plate in a penetrating mode in the thickness direction of the granulation plate, and the granulation holes are communicated with the driving chains. A support plate is arranged at the lower end of the granulating plate above the frame body, a storage tank with openings at the upper end and the lower end is arranged at the upper end of the granulating plate of the frame body, a first telescopic driving assembly is arranged above the granulating plate of the frame body, and the lower end of the first telescopic driving assembly is connected with a granulating plate matched with the granulating plate; a plurality of pellet pressing shafts in one-to-one correspondence with pellet pressing holes in the pelletizing plate are arranged at the lower end of the pellet pressing plate, and a pellet discharging groove is outwards and downwards formed in the lower portion of the end, close to the first telescopic driving assembly, of the frame body. Pelletizing is conducted in a rapid pressing mode, the pressed particles are uniform in size, fine powder is not prone to being generated, the quality of the particles is higher, and production cost is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of granulation equipment and relates to dry granulation equipment. Background Art

[0002] Dry granulation technology, which eliminates the need for liquid binders, holds a significant position in numerous industries, including pharmaceuticals, food, and chemicals. It offers an effective solution for handling water-instable or heat-sensitive materials. It not only improves material flow and compressibility but also enhances product stability and quality consistency, playing an indispensable role in the production process.

[0003] Existing dry granulators mainly include two stages: first, the powder raw material is passed through the gap between one or more pairs of high-pressure rollers, and the pressure applied by the rollers is used to squeeze the powder into large flakes. The main purpose of this stage is to form sufficient binding force between the powder particles through compression, thereby forming a flake body with a certain structural strength. Next, in the second stage, these flakes will be transported to the crushing device and broken into smaller particles through mechanical forces (such as knocking, rolling, shearing, etc.). However, there are several key problems with this process: First, since the crushing operation is usually random, the size and shape of the particles cannot be precisely controlled, resulting in a wide range of particle size distribution of the resulting particles, making it difficult to meet the high requirements for particle uniformity in certain applications; second, during the knocking process, the strong mechanical action will cause some of the material to be crushed into fine powder. This fine powder not only affects the final quality of the granular product, but also increases production costs because additional screening or separation steps are required to remove the fine powder. Utility Model Content

[0004] The purpose of the utility model is to provide a dry granulation equipment, which granulates by a rapid pressing method, the pressed particles are of uniform size, and are not prone to producing fine powder, so that the particles are of higher quality and the production cost is saved.

[0005] In order to solve the above technical problems, the utility model provides a dry granulation equipment, including a frame, both sides of the upper end of the frame are provided with vertically arranged drive chains, the upper and lower sides of each drive chain are straight lines, a drive motor for driving the drive chain to move is installed on the frame, a plurality of granulation plates are connected between the two drive chains, when in a horizontal state, the edges of the two adjacent granulation plates are in close contact, each granulation plate is provided with a plurality of granulation holes along its thickness, and the frame is provided with a granulation plate at the lower end of the upper granulation plate in close contact with and sliding connection with the granulation plate. The support plate of the present invention is provided with a material storage trough with openings at both upper and lower ends at the upper end of the granulation plate, the lower end of the material storage trough is in close contact with and slidably connected to the upper end of the granulation plate above, and the first telescopic drive component is provided on the upper side of the granulation plate and at one side of the material storage trough, the lower end of the first telescopic drive component is connected to a pelletizing plate that matches the granulation plate, and the lower end of the pelletizing plate is provided with a number of pelletizing shafts that correspond one-to-one to the pelletizing holes on the pelletizing plate, and a pellet outlet trough is provided outward and downward below the lower end of the frame close to one end of the first telescopic drive component.

[0006] By using the above technical solution, after adding powder into the storage trough, the equipment is started, the driving motor drives the driving chain to move, and then drives the granulation plate to continuously enter the bottom of the storage trough, and fills the pelletizing hole in the storage trough with powder, and then moves out from the other side of the storage trough, and then makes the first telescopic driving component regularly drive the pelletizing plate to move up and down. When the pelletizing plate moves downward, the pelletizing shaft is pressed into the pelletizing hole to press the powder inside into pellets, and then the pelletizing plate continues to move. When it moves to the end, the first telescopic driving component regularly drives the pellet pushing plate to move back and forth, so that the pellet pushing shaft extends into the pelletizing hole to push the pellets out, and the pellets fall into the pellet outlet trough and slide out.

[0007] The utility model is further configured such that a second telescopic drive assembly is installed between the upper and lower granulation plates of the frame, a particle pushing plate cooperating with the granulation plate is horizontally arranged at one end of the second telescopic drive assembly facing the particle outlet trough, and a plurality of particle pushing shafts corresponding one to one to the particle pressing holes on the granulation plate are arranged on the outward side of the particle pushing plate.

[0008] The present invention is further configured such that the first telescopic drive assembly and the second telescopic drive assembly both include a rotating motor, a telescopic shaft arranged on the power output shaft of the drive motor, and a telescopic sleeve outer sleeve of the telescopic shaft; the telescopic sleeve is arranged on the side of the pellet pressing plate away from the pellet pressing shaft or the side of the pellet pushing plate away from the pellet pushing shaft; an elliptical circulation groove is provided on the outer periphery of the telescopic shaft; and a sliding protrusion is provided on the inner wall of the telescopic sleeve with a sliding protrusion slidably connected to the elliptical circulation groove.

[0009] The utility model is further configured such that a mounting bracket for mounting a corresponding rotating motor is provided upwardly at the upper end of the frame body, a plurality of first limiting sleeves are provided at the lower end of the mounting bracket, and a plurality of first limiting shafts slidably connected to the first limiting sleeves in a one-to-one correspondence are provided upwardly at the upper end of the pelletizing plate.

[0010] The utility model is further configured such that the frame is provided with a plurality of second limiting sliding sleeves inwardly toward the particle pushing plate, and a plurality of second limiting shafts are provided on the side of the particle pushing plate away from the particle pushing shaft, which are slidably connected to the second limiting sliding sleeves in a one-to-one correspondence.

[0011] The utility model is further configured such that the frame is rotatably connected to sprockets meshing therewith at both ends of each drive chain, a drive shaft is connected between the two sprockets away from one end of the particle outlet trough, and a power output shaft of the drive motor is connected to the drive shaft.

[0012] The utility model is further configured such that slide rails are provided on both sides of the frame body close to the drive chain, and both ends of each granulating plate are provided with slide shafts slidably connected to the corresponding slide rails.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] First, the utility model improves the granulation method and adopts a cyclic rapid pressing method to granulate. The granules produced by pressing have a uniform and regular shape, and fine powder is not easily generated during the process. Compared with the existing crushing granulation method, the granules produced are of higher quality and can also save production costs accordingly.

[0015] Secondly, the utility model drives the granulation plate to circulate through the driving chain, and the first telescopic driving component drives the granulation pressing plate to reciprocate, and the second telescopic driving component drives the granulation pushing plate to reciprocate, so that the granulation plate can quickly and continuously bring the powder out of the granulation, which can effectively improve the granulation speed and accelerate the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a partial cross-sectional view of the utility model;

[0018] Figure 3 Used to show the positional relationship between the pelletizing plate, pelletizing plate and pellet pushing plate;

[0019] Figure 4 It is a partial cross-sectional view used to show the connection between the telescopic shaft and the telescopic sleeve;

[0020] Figure 5 It is the overall structure of the frame.

[0021] Among them, 1. frame; 2. drive chain; 3. sprocket; 4. drive shaft; 5. drive motor; 6. pelletizing plate; 7. pelletizing hole; 8. support plate; 9. slide rail; 10. slide shaft; 11. storage trough; 12. pelletizing plate; 13. pelletizing shaft; 14. pellet discharging trough; 15. pellet pushing plate; 16. pellet pushing shaft; 17. rotating motor; 18. telescopic shaft; 19. telescopic sleeve; 20. elliptical circulation groove; 21. sliding protrusion; 22. mounting frame; 23. first limit sleeve; 24. first limit shaft; 25. second limit sleeve; 26. second limit shaft. DETAILED DESCRIPTION

[0022] The following is a detailed description of the dry granulation equipment proposed by the present invention, with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are greatly simplified and not to exact scale, and are intended solely to facilitate and clearly illustrate the embodiments of the present invention. Identical or similar reference numerals in the drawings represent identical or similar components.

[0023] Example, see Figure 1-5 A dry granulation device includes a frame 1, with a vertically arranged drive chain 2 provided on both sides of the upper end of the frame 1, and the upper and lower sides of each drive chain 2 are straight lines. The frame 1 is rotatably connected to a sprocket 3 meshing with the drive chain 2 at both ends of each drive chain 2, and a drive shaft 4 is connected between the two sprockets 3 at the rear end. A drive motor 5 for driving the drive shaft 4 is installed on the outside of the frame 1. A plurality of granulation plates 6 are connected between the two drive chains 2. When in a horizontal state, the edges of two adjacent granulation plates 6 are in close contact with each other. Each granulation plate 6 has a plurality of granulation holes 7 formed along its thickness. The frame 1 is provided with a support plate 8 in close contact with and slidably connected to the lower end of the upper granulation plate 6 to prevent the powder in the granulation holes 7 from spilling out. A slide rail 9 is provided on both sides of the frame 1 near the drive chain 2, and a slide shaft 10 slidably connected to the corresponding slide rail 9 is provided at both ends of each granulation plate 6.

[0024] The frame 1 is provided with a storage trough 11 with both ends open at the upper end of the granulation plate 6. The lower end of the storage trough 11 is in close contact with and slidably connected to the upper end of the granulation plate 6 above. The frame 1 is provided with a first telescopic drive assembly above the granulation plate 6 and on one side of the storage trough 11. The lower end of the first telescopic drive assembly is connected to a pelletizing plate 12 that matches the granulation plate 6. The lower end of the pelletizing plate 12 is provided with a number of pelletizing shafts 13 that correspond one-to-one with the pelletizing holes 7 on the granulation plate 6. The frame 1 is provided with a pelletizing groove 14 facing forward and downward below one end of the first telescopic drive assembly. The frame 1 is installed with a second telescopic drive assembly between the upper and lower layers of the granulation plates 6. The second telescopic drive assembly is provided with a pellet pushing plate 15 that matches the granulation plate 6 horizontally at one end facing the pelletizing groove 14. The pellet pushing plate 15 is provided with a number of pellet pushing shafts 16 that correspond one-to-one with the pelletizing holes 7 on the granulation plate 6 on the outward side.

[0025] The first telescopic drive assembly and the second telescopic drive assembly each include a rotating motor 17, a telescopic shaft 18 arranged on the power output shaft of the drive motor 5, and a telescopic sleeve 19 covering the telescopic shaft 18. The telescopic sleeve 19 is arranged on the side of the pellet pressing plate 12 away from the pellet pressing shaft 13 or the side of the pellet pushing plate 15 away from the pellet pushing shaft 16. An elliptical circulation groove 20 is provided on the outer periphery of the telescopic shaft 18. A sliding protrusion 21 is provided on the inner wall of the telescopic sleeve 19, which is slidably connected to the elliptical circulation groove 20. Through the connection between the sliding protrusion 21 and the elliptical circulation groove 20, when the rotating motor 17 drives the telescopic shaft 18 to rotate, it can drive the telescopic sleeve 19 to slide relative to the telescopic shaft 18, thereby driving the pellet pressing plate 12 or the pellet pushing plate 15 to move. The upper end of the frame 1 is provided with a mounting bracket 22 for mounting the corresponding rotating motor 17. The lower end of the mounting bracket 22 is provided with two first limiting sleeves 23. The upper end of the pellet pressing plate 12 is provided with two first limiting shafts 24 that are slidably connected to the first limiting sleeves 23 in a one-to-one correspondence. The frame 1 is provided with two second limiting sleeves 25 inwardly facing the pellet pushing plate 15. The side of the pellet pushing plate 15 away from the pellet pushing shaft 16 is provided with two second limiting shafts 26 that are slidably connected to the second limiting sleeves 25 in a one-to-one correspondence.

[0026] Working principle: After adding powder into the storage trough 11, start the equipment, drive the motor 5 to drive the drive chain 2 to move, and then drive the granulation plate 6 to continuously enter the bottom of the storage trough 11, and fill the pelletizing hole 7 in the storage trough 11 with powder, and then move it out from the other side of the storage trough 11, and then rotate the motor 17 to make the first telescopic drive component regularly drive the pelletizing plate 12 to move up and down. When the pelletizing plate 12 moves downward, the pelletizing shaft 13 is pressed into the pelletizing hole 7 to press the powder inside into pellets. Then the pelletizing plate 12 continues to move. When it moves to the end, the first telescopic drive component regularly drives the pellet pushing plate 15 to move back and forth, so that the pellet pushing shaft 16 extends into the pelletizing hole 7 to push the pellets out, and then slides out after falling into the pellet outlet trough 14.

[0027] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0028] The above description is only a description of the preferred embodiment of the present invention and does not limit the scope of the present invention. Any changes and modifications made by ordinary technicians in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A dry granulation device, comprising a frame (1), characterized in that: Both sides of the upper end of the frame (1) are provided with vertically arranged driving chains (2), and the upper and lower sides of each driving chain (2) are both straight lines. A driving motor (5) for driving the driving chain (2) is installed on the frame (1), and a plurality of granulating plates (6) are connected between the two driving chains (2). When in a horizontal state, the edges of the two adjacent granulating plates (6) are in close contact with each other, and each granulating plate (6) is provided with a plurality of granulating holes (7) along its thickness. The frame (1) is provided with a supporting plate (8) in close contact with and slidably connected to the upper granulating plate (6) at the lower end of the upper granulating plate (6). The frame (1) is provided with a supporting plate (8) in close contact with and slidably connected to the upper granulating plate (6). A material storage trough (11) with openings at both ends is provided at the end, the lower end of the material storage trough (11) is in close contact with and slidably connected to the upper end of the granulation plate (6) above, the frame (1) is provided with a first telescopic drive component above the granulation plate (6) and on one side of the material storage trough (11), the lower end of the first telescopic drive component is connected to a pelletizing plate (12) matched with the granulation plate (6), the lower end of the pelletizing plate (12) is provided with a plurality of pelletizing shafts (13) corresponding one-to-one to the pelletizing holes (7) on the pelletizing plate (6), and a pellet outlet trough (14) is provided outward and downward below one end of the frame (1) close to the first telescopic drive component.

2. A dry granulation equipment according to claim 1, characterized in that, The frame (1) is provided with a second telescopic drive assembly between the upper and lower granulation plates (6); a particle pushing plate (15) that matches the granulation plate (6) is horizontally provided at one end of the second telescopic drive assembly facing the particle outlet groove (14); and a plurality of particle pushing shafts (16) that correspond one to one with the particle pressing holes (7) on the granulation plate (6) are provided on the outward side of the particle pushing plate (15).

3. A dry granulation equipment according to claim 2, characterized in that, The first telescopic drive assembly and the second telescopic drive assembly both include a rotating motor (17), a telescopic shaft (18) arranged on the power output shaft of the drive motor (5), and a telescopic sleeve (19) outermost of the telescopic shaft (18). The telescopic sleeve (19) is arranged on the side of the pellet pressing plate (12) away from the pellet pressing shaft (13) or the side of the pellet pushing plate (15) away from the pellet pushing shaft (16). An elliptical circulation groove (20) is provided on the outer periphery of the telescopic shaft (18), and a sliding protrusion (21) slidably connected to the elliptical circulation groove (20) is provided on the inner wall of the telescopic sleeve (19).

4. A dry granulation equipment according to claim 3, characterized in that, The upper end of the frame (1) is provided with a mounting frame (22) for mounting a corresponding rotating motor (17), the lower end of the mounting frame (22) is provided with a plurality of first limiting sleeves (23), and the upper end of the pelletizing plate (12) is provided with a plurality of first limiting shafts (24) that are slidably connected to the first limiting sleeves (23) in a one-to-one correspondence.

5. A dry granulation equipment according to claim 3, characterized in that, The frame (1) is provided with a plurality of second limiting sliding sleeves (25) inwardly toward the particle pushing plate (15), and a plurality of second limiting shafts (26) are provided on a side of the particle pushing plate (15) away from the particle pushing shaft (16) and are slidably connected to the second limiting sliding sleeves (25) in a one-to-one correspondence.

6. A dry granulation equipment according to claim 1, characterized in that, The frame (1) is rotatably connected to sprockets (3) meshing with the drive chains (2) at both ends thereof, a drive shaft (4) is connected between the two sprockets (3) at one end away from the particle outlet trough (14), and a power output shaft of the drive motor (5) is connected to the drive shaft (4).

7. The dry granulation equipment according to claim 1, characterized in that: Slide rails (9) are provided on both sides of the frame (1) close to the drive chain (2), and slide shafts (10) are provided at both ends of each granulation plate (6) and are slidably connected to the corresponding slide rails (9).

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