High-speed pulping kettle with grinding paddle
By introducing a grinding paddle and linkage rod design into the pulping kettle, the problem of bottom caking is solved, achieving efficient cleaning and uniform mixing, extending equipment life and improving production efficiency.
Patent Information
- Application Number
- CN202521353031.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-30
- Publication Date
- 2026-05-26
- Estimated Expiration
- 2035-06-30
AI Technical Summary
Existing pulping kettles are prone to pulp precipitation and sedimentation when they are shut down for a long time, resulting in slurry hardening and sedimentation at the bottom of the kettle. Traditional cleaning methods are time-consuming, labor-intensive, and may damage the equipment, affecting production efficiency and product quality.
Design a high-speed pulping vessel with a grinding paddle, which is equipped with a grinding paddle and a stirring paddle. The grinding paddle can rotate independently or synchronously through a linkage rod. The grinding paddle blades contact the bottom of the vessel to break up the sediment. The linkage rod is driven by a drive motor to improve cleaning efficiency.
It effectively breaks up sediment at the bottom of the vessel, ensuring uniform mixing of the slurry, extending the service life of the equipment, reducing manual intervention, and improving production stability and equipment efficiency.
Smart Images

Figure CN224270985U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of pulping equipment, specifically relating to a high-speed pulping machine with a grinding paddle. Background Technology
[0002] A pulping reactor is a chemical equipment specifically designed for the efficient and uniform mixing of solid powders (or particles) with a liquid medium (usually water or a solvent) to form a slurry (suspension) of specific concentration and dispersion. Its core purpose is to achieve the wetting, dispersion, deagglomeration (breaking up clumps), and stable suspension of solids, preventing sedimentation and agglomeration.
[0003] During prolonged shutdowns, pulp can precipitate and settle inside the pulping kettle, resulting in hardened sediment at the bottom. Since conventional pulping kettles lack specific structures to handle this sediment buildup, operators typically need to empty the kettle and then scrub the interior. This cleaning method is not only time-consuming and labor-intensive but can also lead to equipment damage or incomplete cleaning due to improper operation, thus affecting subsequent production efficiency and product quality. Furthermore, frequent disassembly and cleaning accelerate equipment aging and increase maintenance costs. Therefore, designing a pulping kettle structure that effectively addresses the sediment buildup problem has become a pressing technical challenge. By improving the internal structure and optimizing the paddle function, cleaning efficiency can be significantly improved, manual intervention reduced, thereby extending equipment lifespan and ensuring production stability.
[0004] In order to solve the above problems, this utility model aims to provide a high-speed pulping kettle with a grinding paddle. Utility Model Content
[0005] The purpose of this invention is to provide a high-speed pulping kettle with a grinding paddle to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A high-speed pulping vessel with a grinding paddle includes a main cylinder. Inside the main cylinder are a grinding frame and a stirring frame. The grinding frame is located below the stirring frame, and a grinding paddle is located at the grinding frame. A stirring paddle is located directly below the stirring paddle. A first linkage seat is located at the bottom of the stirring paddle, and a second linkage seat is located at the top of the grinding frame. A linkage rod passes through the stirring paddle and can move up and down. A locking block is located at the bottom of the linkage rod, and a locking groove is located corresponding to one of the linkage seats. A second locking groove is located at the top of the second linkage seat. The linkage rod can lock with the first locking groove when moved upwards, and can lock with the second locking groove when moved downwards. A drive motor is connected to the top of the linkage rod.
[0008] Preferably, the grinding paddle includes a grinding bearing, and the bottom of the grinding bearing is provided with a plurality of grinding blades, which are in contact with the bottom of the main cylinder.
[0009] Preferably, the stirring paddle includes a stirring bearing, and the stirring bearing is provided with a plurality of stirring blades.
[0010] Preferably, the stirring bearing is hollow inside, the linkage rod passes through the stirring bearing, and the linkage rod and the stirring bearing can rotate independently.
[0011] Preferably, the upper part of the main body is provided with a liftable motor bracket, and a drive motor is provided at the motor bracket; the upper part of the linkage rod is rotatably connected to the motor bracket, and the drive motor is engaged with the top of the linkage rod; the linkage rod can rise and fall with the motor bracket.
[0012] Preferably, the top of the main cylinder is provided with a rotating opening cover.
[0013] Preferably, the bottom of the main body cylinder is provided with several fixed support legs.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] (1) The present invention provides a high-speed pulping kettle with a grinding paddle, wherein a grinding paddle is provided at the bottom of the pulping kettle; the blades of the grinding paddle are in contact with and close to the bottom of the main body cylinder, and through the rotation of the device, the sediment and slab at the bottom of the kettle can be effectively broken or removed, ensuring that they are mixed evenly with the slurry again; the design of the grinding paddle can avoid the problem of bottom material accumulation that occurs after long-term use of traditional pulping kettles, and significantly improve the working efficiency and service life of the equipment;
[0016] (2) The present invention provides a high-speed pulping kettle with a grinding paddle. Through the vertical movement of the linkage rod, the rod can be independently linked with the grinding paddle or the stirring paddle, and can also drive the grinding paddle and the stirring paddle to rotate at the same time; thereby realizing a single grinding operation, a single stirring operation, or simultaneous grinding and stirring. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the structure of the main tube of this utility model;
[0019] Figure 3 This is a cross-sectional view of the main cylinder of the present invention in the locked state of the linkage rod and linkage seat;
[0020] Figure 4This is a cross-sectional view of the main cylinder of the present invention in the locked state of the linkage rod and linkage seat;
[0021] Figure 5 This is a cross-sectional view of the main cylinder of this utility model in the state where the linkage rod and linkage seat one and linkage seat two are simultaneously locked;
[0022] Figure 6 This is a structural schematic diagram of the grinding frame, stirring frame, grinding paddle, stirring paddle, linkage rod, and other components of this utility model;
[0023] Figure 7 This is a structural schematic diagram of the grinding frame, stirring frame, grinding paddle, stirring paddle, and other components of this utility model;
[0024] Figure 8 This is a schematic diagram of the linkage rod of this utility model;
[0025] In the diagram: 1-Main cylinder; 2-Grinding frame; 3-Stirring frame; 4-Grinding paddle; 5-Stirring paddle; 6-Grinding bearing; 7-Grinding paddle blade; 8-Connecting frame; 9-Stirring bearing; 10-Stirring paddle blade; 11-Linkage rod; 12-Linkage seat one; 13-Linkage seat two; 14-Locking block; 15-Locking groove one; 16-Locking groove two; 17-Motor bracket; 18-Drive motor; 19-Opening cover; 20-Fixed support angle. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] A high-speed mixing vessel with a grinding paddle includes a main cylinder 1. Inside the main cylinder 1, a grinding frame 2 and a stirring frame 3 are provided, with the grinding frame 2 located below the stirring frame 3. A grinding paddle 4 is provided at the grinding frame 2, and a stirring paddle 5 is provided at the stirring frame 3. The grinding paddle 4 and the stirring paddle 5 are arranged coaxially, with the grinding paddle 4 located directly below the stirring paddle 5. Both can rotate independently.
[0028] The grinding paddle 4 includes a grinding bearing 6, with four grinding blades 7 at its bottom. The bottom surfaces of the four grinding blades 7 contact the bottom of the main body cylinder 1. As the grinding bearing 6 rotates, the grinding blades 7 can grind and scrape away the hardened material or sediment at the bottom of the main body cylinder 1. To enhance the rotational stability of the grinding blades 7, a connecting frame 8 is provided between the four grinding blades 7. The stirring paddle 5 includes a stirring bearing 9, with four stirring blades 10 mounted on it. As the stirring bearing 9 rotates, it can agitate the liquid inside the main body cylinder 1.
[0029] The stirring bearing 9 is hollow inside, and the linkage rod 11 passes through it, allowing it to move independently up and down within the bearing. A first linkage seat 12 is located at the bottom of the stirring bearing 9, and a second linkage seat 13 is located at the top of the grinding bearing 6. A locking block 14 is located at the bottom of the linkage rod 11. Correspondingly, a first locking groove 15 is located at the first linkage seat 12, and a second locking groove 16 is located at the top of the second linkage seat 13. When the linkage rod 11 moves upward, the locking block 14 engages with the first locking groove 15 to lock, and as the linkage rod 11 rotates, it drives the stirring paddle 5 to rotate. When the linkage rod 11 moves downward, the locking block 14 engages with the second locking groove 16 to lock, and as the linkage rod 11 rotates, it drives the grinding paddle 4 to rotate. When the linkage rod 11 moves to the middle position, the locking block 14 engages with both the first locking groove 15 and the second locking groove 16 to lock simultaneously. At this point, the linkage rod 11 rotates, driving both the stirring paddle 5 and the grinding paddle 4 to rotate simultaneously.
[0030] A liftable motor bracket 17 is provided at the upper part of the main body cylinder 1, and the linkage rod 11 can be raised and lowered along with the motor bracket 17. A drive motor 18 is provided at the motor bracket 17, and the drive motor 18 is engaged with the top of the linkage rod 11, so that the drive motor 18 can drive the linkage rod 11 to rotate. The top of the main body cylinder 1 is provided with a rotating opening cover 19, and the bottom of the main body cylinder 1 is provided with four fixed support corners 20.
[0031] 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 high-speed pulping vessel with a grinding paddle, characterized in that: The device includes a main cylinder, inside which are a grinding frame and a stirring frame. The grinding frame is located below the stirring frame, and a grinding paddle is located on the grinding frame. A stirring paddle is located on the stirring frame. The grinding paddle is located directly below the stirring paddle. A first linkage seat is located at the bottom of the stirring paddle, and a second linkage seat is located at the top of the grinding frame. A linkage rod passes through the stirring paddle and can move up and down. A locking block is located at the bottom of the linkage rod, and a locking groove is located at the corresponding first linkage seat. A second locking groove is located at the top of the second linkage seat. The linkage rod can lock with the first locking groove when moved upward, and can lock with the second locking groove when moved downward. A drive motor is connected to the top of the linkage rod.
2. The high-speed pulping kettle with a grinding paddle according to claim 1, characterized in that: The grinding paddle includes a grinding bearing, and the bottom of the grinding bearing is provided with a plurality of grinding blades, which are in contact with the bottom of the main cylinder.
3. A high-speed pulping kettle with a grinding paddle according to claim 1, characterized in that: The stirring paddle includes a stirring bearing, and the stirring bearing is provided with a plurality of stirring blades.
4. A high-speed pulping kettle with a grinding paddle according to claim 3, characterized in that: The stirring bearing is hollow inside, and the linkage rod passes through the stirring bearing, allowing independent rotation between the linkage rod and the stirring bearing.
5. A high-speed pulping kettle with a grinding paddle according to claim 1, characterized in that: The upper part of the main body is provided with a liftable motor bracket, and a drive motor is provided at the motor bracket; the upper part of the linkage rod is rotatably connected to the motor bracket, and the drive motor is engaged with the top of the linkage rod; the linkage rod can rise and fall with the motor bracket.
6. A high-speed pulping kettle with a grinding paddle according to claim 1, characterized in that: The top of the main cylinder is equipped with a rotating cover.
7. A high-speed pulping kettle with a grinding paddle according to claim 1, characterized in that: The bottom of the main tube is provided with several fixed support feet.