A twin screw hydroxypropyl methylcellulose delivery device

Abstract

The utility model relates to hydroxypropyl methyl cellulose production technical field, concretely relates to a kind of double screw hydroxypropyl methyl cellulose conveying devices, including connecting shell main body, the top of connecting shell main body is fixedly connected with connecting jar, the top of connecting jar is fixedly connected with feed hopper, the inside of connecting jar is equipped with dispersion component, the inside rotationally connected of feed hopper has two groups of crushing roller, the inside rotationally connected of connecting shell main body has two groups of conveying screw, the dispersion component is used to disperse the material of two groups of crushing roller crushing and process, the dispersion component includes fixed shell fixedly connected in the inside top of connecting jar, compared with existing conveying device, by the primary crushing of feed hopper, the efficient secondary dispersion of dispersion component and the stable conveying of the collaborative design of double screw in connecting shell, successfully the blocky material of easy to block is converted into uniform, flowability loose state and reliably conveyed.

Description

Technical Field

[0001] This utility model relates to the field of hydroxypropyl methylcellulose production technology, specifically to a twin-screw hydroxypropyl methylcellulose conveying device. Background Technology

[0002] Hydroxypropyl methylcellulose (HMCMC) is a white or off-white powder, belonging to the category of nonionic cellulose mixed ethers. It is a semi-synthetic, inactive, viscoelastic polymer widely used in industries such as synthetic resins, petrochemicals, ceramics, papermaking, leather, pharmaceuticals, food, and cosmetics. The production process of HMCMC involves refining and pulverizing cotton, etherification and alkalization, pressure filtration, drying, pulverizing again, in-plant packaging, blending, and final packaging. After the pressure filtration process, the material exiting the filter press needs to be fed into a feeder and then into an airflow drying system for further drying.

[0003] Large particles and lumps may be present in hydroxypropyl methylcellulose (HMCMC). Existing conveying devices do not address these large particles and lumps at the feed hopper. The wet HMCMC material after pressure filtration is prone to re-agglomeration or bridging at the feed inlet, leading to poor material flow or even complete blockage of the conveying channel. The direct entry of lumpy material into the conveying mechanism can cause fluctuations in conveying efficiency, failing to provide a stable and uniform material flow for downstream drying processes, thus affecting drying quality and efficiency. Once blockage occurs, manual cleaning is often required, increasing the labor intensity and safety risks for operators, severely disrupting production continuity, and reducing overall production efficiency. Therefore, improving existing conveying devices and designing a novel twin-screw HMCMC conveying device to address these technical deficiencies and enhance the overall practicality of the conveying system is of paramount importance. Utility Model Content

[0004] The purpose of this invention is to provide a twin-screw hydroxypropyl methylcellulose conveying device, which solves the problem that existing conveying devices do not handle large particles and lumps at the feed hopper, and the wet hydroxypropyl methylcellulose material after pressing and filtration is prone to re-agglomeration or bridging at the feed inlet, resulting in poor material discharge or even complete blockage of the conveying channel.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A twin-screw hydroxypropyl methylcellulose conveying device includes a connecting shell body, a connecting tank fixedly connected to the top of the connecting shell body, a feeding hopper fixedly connected to the top of the connecting tank, a dispersing component inside the connecting tank, two sets of crushing rollers rotatably connected inside the feeding hopper, and two sets of conveying screws rotatably connected inside the connecting shell body.

[0007] The dispersion assembly is used to disperse the material crushed by the two sets of crushing rollers. The dispersion assembly includes a fixed shell fixedly connected to the top of the inside of the connecting tank. A rotating frame is rotatably connected to the bottom of the fixed shell. A first rotating plate is rotatably connected to all four sides inside the rotating frame. Multiple sets of second rotating plates are fixedly connected to the middle of the inside of the rotating frame.

[0008] As a preferred embodiment of this utility model, an internal gear ring is fixedly connected inside the fixed shell, and a first drive gear is rotatably connected around the top of the rotating frame and inside the fixed shell, the first drive gear meshing with the internal gear ring.

[0009] As a preferred embodiment of this utility model, the first rotating plate extends to the top of the rotating frame and is fixedly connected to the first driving gear. A guide groove is provided at the bottom of the fixed shell, and the rotating frame and the first rotating plate are slidably connected to the guide groove.

[0010] As a preferred embodiment of this utility model, a first drive motor is fixedly connected to the top of the inside of the connecting tank, and the drive end of the first drive motor is fixedly connected to the rotating frame.

[0011] As a preferred embodiment of this utility model, the interior of the fixed shell is designed as a hollow structure, the connecting tank, the feeding hopper and the main body of the connecting shell are interconnected, and the bottom of the main body of the connecting shell is fixedly connected to the feeding hopper.

[0012] As a preferred embodiment of this utility model, the crushing roller extends to the outside of the feed hopper and is fixedly connected to two sets of second drive gears, the two sets of second drive gears meshing with each other, and a second drive motor is fixedly connected to the end of the feed hopper away from the second drive gears, and the drive end of the second drive motor is fixedly connected to a set of crushing rollers.

[0013] As a preferred embodiment of this utility model, the conveying screw extends to the outside of the connecting shell and is fixedly connected to a third drive gear. Two sets of the third drive gears are meshed with each other. A third drive motor is fixedly connected to the end of the connecting shell away from the third drive gear. The drive end of the third drive motor is fixedly connected to a set of conveying screws.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this invention, the design of the feeding hopper and dispersing components allows the crushing roller to perform primary crushing, breaking down large pieces of material that may have formed due to moisture absorption or filtration processes. This lays the foundation for subsequent uniform dispersion and smooth conveying, preventing blockages. The first drive motor directly drives the entire rotating frame, causing it to rotate around its central axis. The second rotating plate, fixed on the rotating frame, revolves accordingly, generating a macroscopic, large-scale stirring and scattering effect on the falling material. As the rotating frame revolves, the first drive gear rolls along its internal gear ring, forcing it to rotate on its own axis, which in turn drives the first rotating plate below to rotate simultaneously, achieving efficient secondary dispersion and anti-blockage. The rotating motion mode, similar to a high-efficiency mixer, can thoroughly break up, beat, and comb through the pre-crushed materials, effectively breaking up electrostatic adsorption or slight agglomeration between materials. This ensures that the materials enter the conveying section below in a very loose state, fundamentally avoiding bridging or blockage at the discharge port. It completely solves the key pain points of wet materials after filter pressing easily agglomerating and clogging the discharge port during the conveying process. Through the synergistic design of primary crushing in the feed hopper, efficient secondary dispersion by the dispersion component, and stable conveying by the twin screws inside the connecting shell, it successfully transforms easily clogged lumpy materials into a uniform, fluid, loose state for reliable conveying. Attached Figure Description

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

[0017] Figure 2 This is a schematic diagram of the connecting tank structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the distributed component of this utility model;

[0019] Figure 4 This is a schematic diagram of the rotating frame structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the internal structure of the connecting shell of this utility model.

[0021] In the diagram: 1. Connecting shell body; 2. Connecting tank; 3. Feed hopper; 4. Dispersing component; 5. Crushing roller; 6. Conveying screw; 7. Fixed shell; 8. Rotating frame; 9. First rotating plate; 10. Second rotating plate; 11. Internal gear ring; 12. First drive gear; 13. Guide groove; 14. First drive motor; 15. Feed hopper; 16. Second drive motor; 17. Third drive gear; 18. Third drive motor. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Example:

[0024] Please see Figures 1-5 This utility model provides a technical solution:

[0025] A twin-screw hydroxypropyl methylcellulose conveying device includes a connecting shell body 1, a connecting tank 2 fixedly connected to the top of the connecting shell body 1, a feeding hopper 3 fixedly connected to the top of the connecting tank 2, a dispersing component 4 provided inside the connecting tank 2, two sets of crushing rollers 5 rotatably connected inside the feeding hopper 3, and two sets of conveying screws 6 rotatably connected inside the connecting shell body 1.

[0026] The dispersing component 4 is used to disperse the material crushed by the two sets of crushing rollers 5. The dispersing component 4 includes a fixed shell 7 fixedly connected to the top of the inside of the connecting tank 2. A rotating frame 8 is rotatably connected to the bottom of the fixed shell 7. A first rotating plate 9 is rotatably connected to all four sides inside the rotating frame 8. Multiple sets of second rotating plates 10 are fixedly connected to the middle of the inside of the rotating frame 8.

[0027] Furthermore, an internal gear ring 11 is fixedly connected inside the fixed shell 7. A first drive gear 12 is rotatably connected around the top of the rotating frame 8 and inside the fixed shell 7. The first drive gear 12 meshes with the internal gear ring 11. A first drive motor 14 is fixedly connected to the top of the connecting tank 2. The drive end of the first drive motor 14 is fixedly connected to the rotating frame 8. When the first drive motor 14 is started, it drives the rotating frame 8 to rotate, causing multiple sets of first rotating plates 9 and second rotating plates 10 to move in an arc around the rotating frame 8. When the rotating frame 8 rotates, it drives multiple sets of first drive gears 12 to move in an arc around the rotating frame 8. The meshing connection between the first drive gear 12 and the internal gear ring 11 causes the first drive gear 12 to rotate, thereby causing the first rotating plate 9 to rotate. This allows the first rotating plate 9 and the second rotating plate 10 to contact the material and beat the material.

[0028] The first rotating plate 9 extends to the top of the rotating frame 8 and is fixedly connected to the first drive gear 12. The bottom of the fixed shell 7 is provided with a guide groove 13. The rotating frame 8 and the first rotating plate 9 are slidably connected to the guide groove 13. The guide groove 13 guides the rotating frame 8 and the first rotating plate 9, increasing the stability of the rotation of the rotating frame 8 and the stability of the displacement of the first rotating plate 9.

[0029] Secondly, the interior of the fixed shell 7 has a hollow structure design. The connecting tank 2, the feed hopper 3, and the connecting shell body 1 are interconnected. The bottom of the connecting shell body 1 is fixedly connected to the discharge hopper 15, which guides the material into the interior of the feed hopper 3, so that the material can be introduced into the interior of the connecting tank 2. The hollow structure design of the fixed shell 7 can prevent the material from being obstructed from entering the interior of the connecting tank 2. When the material is introduced into the interior of the connecting tank 2, the dispersing component 4 can disperse the material, preventing the material from clogging the discharge hopper 15 when it is introduced into the interior of the connecting shell body 1. This would require manual cleaning, which would not only increase the workload of the staff, but also further reduce the production efficiency of hydroxypropyl methylcellulose.

[0030] Furthermore, two sets of second drive gears are fixedly connected to the outer side of the crushing roller 5 extending to the feed hopper 3. The two sets of second drive gears are meshed with each other. A second drive motor 16 is fixedly connected to the end of the feed hopper 3 away from the second drive gears. The drive end of the second drive motor 16 is fixedly connected to a set of crushing rollers 5. When the second drive motor 16 is started, it drives a set of crushing rollers 5 to rotate, causing the second drive gear fixedly connected to its outer side to rotate, which in turn drives the other set of second drive gears to rotate. This allows both sets of crushing rollers 5 to rotate and crush the material introduced into the feed hopper 3, preventing large particles and lumps from being introduced into the connecting shell body 1 and clogging the connecting shell body 1, thus affecting its operation.

[0031] Furthermore, the conveying screw 6 extends to the outside of the connecting shell body 1 and is fixedly connected to a third drive gear 17. Two sets of third drive gears 17 are meshed with each other. A third drive motor 18 is fixedly connected to the end of the connecting shell body 1 away from the third drive gear 17. The drive end of the third drive motor 18 is fixedly connected to a set of conveying screws 6. When the material is introduced into the interior of the connecting shell body 1, the third drive motor 18 is started to drive a set of conveying screws 6 to rotate, causing the third drive gear 17 fixedly connected to its outside to rotate, which in turn drives the other set of third drive gears 17 to rotate, thereby causing the two sets of conveying screws 6 to rotate, conveying the material and guiding it into the interior of the discharge hopper 15, thus completing the conveying operation.

[0032] In this embodiment, the specific implementation scenario is as follows: In actual use, the material is introduced into the feed hopper 3, and the second drive motor 16 is started to drive a set of crushing rollers 5 to rotate, causing the second drive gear fixedly connected to its outer side to rotate, which in turn drives another set of second drive gears to rotate, thereby enabling the two sets of crushing rollers 5 to rotate and crush the material introduced into the feed hopper 3. This prevents large particles or lumps from entering the connecting shell body 1 and clogging it, thus affecting operation. The drive end of the first drive motor 14 is fixedly connected to the rotating frame 8. Starting the first drive motor 14 drives the rotating frame 8 to rotate, causing multiple sets of first rotating plates 9 and second rotating plates 10 to perform arc-shaped displacement around the rotating frame 8. When the rotating frame 8 rotates, it drives multiple sets of first rotating plates 9 and second rotating plates 10 to rotate. The drive gear 12 moves in an arc around the rotating frame 8. The first drive gear 12 meshes with the internal gear ring 11, causing the first drive gear 12 to rotate, which in turn causes the first rotating plate 9 to rotate. This allows the first rotating plate 9 and the second rotating plate 10 to contact the material and beat it. When the material is introduced into the interior of the connecting shell body 1, the third drive motor 18 is started to drive a set of conveying screws 6 to rotate, causing the third drive gear 17 fixedly connected to its outer side to rotate, which in turn drives another set of third drive gears 17 to rotate. This causes both sets of conveying screws 6 to rotate, conveying the material and guiding it into the hopper 15, thus completing the conveying operation. Compared with existing conveying devices, this utility model improves the overall practicality of the conveying device through its design.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A twin-screw hydroxypropyl methylcellulose conveying device, comprising a connecting shell body (1), characterized in that: The top of the connecting shell body (1) is fixedly connected to a connecting tank (2), the top of the connecting tank (2) is fixedly connected to a feeding hopper (3), the inside of the connecting tank (2) is provided with a dispersing component (4), the inside of the feeding hopper (3) is rotatably connected to two sets of crushing rollers (5), and the inside of the connecting shell body (1) is rotatably connected to two sets of conveying screws (6). The dispersion component (4) is used to disperse the material crushed by the two sets of crushing rollers (5). The dispersion component (4) includes a fixed shell (7) fixedly connected to the top of the inside of the connecting tank (2). A rotating frame (8) is rotatably connected to the bottom of the fixed shell (7). A first rotating plate (9) is rotatably connected to the four sides inside the rotating frame (8). Multiple sets of second rotating plates (10) are fixedly connected to the middle of the inside of the rotating frame (8).

2. The twin-screw hydroxypropyl methylcellulose conveying device according to claim 1, characterized in that: An internal gear ring (11) is fixedly connected inside the fixed shell (7), and a first drive gear (12) is rotatably connected around the top of the rotating frame (8) and inside the fixed shell (7). The first drive gear (12) meshes with the internal gear ring (11).

3. The twin-screw hydroxypropyl methylcellulose conveying device according to claim 1, characterized in that: The first rotating plate (9) extends to the top of the rotating frame (8) and is fixedly connected to the first driving gear (12). The bottom of the fixed shell (7) is provided with a guide groove (13). The rotating frame (8) and the first rotating plate (9) are slidably connected to the guide groove (13).

4. The twin-screw hydroxypropyl methylcellulose conveying device according to claim 1, characterized in that: The top of the inside of the connecting tank (2) is fixedly connected to a first drive motor (14), and the drive end of the first drive motor (14) is fixedly connected to the rotating frame (8).

5. The twin-screw hydroxypropyl methylcellulose conveying device according to claim 1, characterized in that: The interior of the fixed shell (7) is designed as a hollow structure. The connecting tank (2), the feeding hopper (3) and the connecting shell body (1) are interconnected. The bottom of the connecting shell body (1) is fixedly connected to the feeding hopper (15).

6. The twin-screw hydroxypropyl methylcellulose conveying device according to claim 1, characterized in that: The crushing roller (5) extends to the outside of the feed hopper (3) and is fixedly connected to two sets of second drive gears. The two sets of second drive gears are meshed with each other. The end of the feed hopper (3) away from the second drive gear is fixedly connected to a second drive motor (16). The drive end of the second drive motor (16) is fixedly connected to a set of crushing rollers (5).

7. The twin-screw hydroxypropyl methylcellulose conveying device according to claim 1, characterized in that: The conveying screw (6) extends to the outside of the connecting shell body (1) and is fixedly connected to a third drive gear (17). Two sets of the third drive gears (17) mesh with each other. A third drive motor (18) is fixedly connected to one end of the connecting shell body (1) away from the third drive gear (17). The drive end of the third drive motor (18) is fixedly connected to a set of conveying screws (6).

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