A paper vat for conveniently stirring pulp

Abstract

The utility model discloses a kind of paper fetching tank of convenient paper pulp stirring, including paper fetching pool, paper fetching support is installed on the paper fetching pool, stirrer is installed on the paper fetching pool and the paper fetching support, the stirrer includes four pairs of lifting slide, the inside of lifting slide is opened in convex shape lifting groove, lifting limit shaft is installed in the inside of convex shape lifting groove, lifting sliding block is installed in the inside of convex shape lifting groove, the utility model relates to paper production technical field, using non-contact magnetic drive system, power transmission is realized using electromagnetic repulsion and magnetic coupling principle to lift adjustment, mechanical friction and lubrication pollution risk are completely eliminated, equipment life is significantly extended;Cross-rotating stirring mechanism is designed by driving gear cross-meshing, so that stirring ring is formed three-dimensional turbulent flow in opposite direction rotation, combined with array type metal rod cover, fiber dispersion efficiency is greatly improved, center and edge area concentration difference is significantly reduced.

Description

Technical Field

[0001] This utility model relates to the field of paper production technology, specifically to a paper trough for facilitating pulp stirring. Background Technology

[0002] In the papermaking industry, the paper trough is the core equipment for pulp forming, and its performance directly affects the uniformity of pulp fiber dispersion and the stability of paper quality. However, traditional paper-retrieving tanks suffer from multiple technical defects in their structural design: lifting and adjustment, as well as stirring drive, rely on mechanical transmission components (such as gears, chains, or hydraulic systems). Long-term operation can easily lead to component wear due to mechanical friction, increasing maintenance costs and potentially causing metal debris or lubricating oil leakage to contaminate the pulp, affecting the whiteness and cleanliness of the finished product; traditional single-shaft or dual-shaft stirring blades have a single stirring direction, making it difficult to generate turbulent shear force, causing pulp fibers to aggregate towards the tank wall under centrifugal force, resulting in a lower fiber concentration in the central area, while the large fluid velocity gradient near the tank wall easily causes fiber agglomeration, resulting in uneven mixing and significant longitudinal / transverse differences in paper strength; pulp fiber density is greater than water, and it is prone to settling under static or low-speed stirring conditions. Traditional equipment lacks an effective anti-settling mechanism, causing pulp concentration to fluctuate over time, resulting in unstable paper basis weight and insufficient fiber fibrillation, affecting the paper-sheet bonding strength and surface smoothness. In view of these issues, in-depth research was conducted, leading to this project. Utility Model Content

[0003] To achieve the above objectives, this utility model provides the following technical solution: a paper-feeding tank for convenient pulp stirring, comprising a paper-feeding pool, a paper-feeding support mounted on the paper-feeding pool, an agitator mounted on the paper-feeding pool and the paper-feeding support, the agitator comprising four pairs of lifting slides, a convex lifting groove formed on the inner side of each lifting slide, a lifting limit shaft mounted on the inner side of each convex lifting groove, a lifting slider mounted on the inner side of each convex lifting groove, a lifting hole formed on each lifting slider, a linear bearing mounted on the inner side of each lifting hole, the lifting slider being movably mounted on the lifting limit shaft via the linear bearing, a pair of lifting ring electromagnets mounted on the inner side of each convex lifting groove, lifting ring magnets mounted on the upper and lower ends of each lifting slider, a pair of locking holes formed on each lifting slide, locking telescopic blocks mounted on the inner side of each pair of locking holes, an electromagnetic telescopic device mounted on the inner side of each locking hole, and lifting adjustment blocks mounted on each pair of lifting sliders.

[0004] Preferably, the lifting adjustment block has multiple stirring ring grooves and a drive groove. A stirring ring is installed inside the stirring ring groove and is movably inserted into the stirring ring groove via bearings. The lifting adjustment block is provided with multiple metal rods arranged in multiple ring-shaped arrays and connected to the multiple stirring ring grooves and the drive groove. Multiple drive shafts are installed inside the drive groove and are evenly inserted into the drive groove. Drive gears are installed on the multiple drive shafts and mesh with each other. Cylindrical magnets are installed on the multiple stirring rings and the multiple drive gears. Multiple T-shaped support blocks are installed on the drive shafts and are fitted with metal wires. A fitted drive tube is installed inside the drive groove and is fitted onto the drive shaft. Multiple arc-shaped magnet blocks are installed inside the fitted drive tube.

[0005] Preferably, an ultrasonic vibrator is installed on the inner side of the paper-collecting pool.

[0006] Preferably, a vibration sensor is installed on the outside of the lifting slide.

[0007] Preferably, a central controller is provided on the paper retrieval pool, and the vibration sensor signal is connected to the central controller.

[0008] Preferably, the inner wall of the paper-collecting pool is provided with a concentration detection ring, which includes multiple array-type fiber optic sensors, and the fiber optic sensor signals are connected to the central controller. Beneficial effects

[0009] This invention provides a paper trough for convenient pulp stirring. It offers the following advantages: The paper trough employs a non-contact magnetic drive system, utilizing electromagnetic repulsion and magnetic coupling principles to achieve lifting adjustment and power transmission, completely eliminating the risks of mechanical friction and lubrication contamination, significantly extending equipment lifespan; the cross-rotation stirring mechanism, through a cross-meshing design of drive gears, causes the stirring rings to rotate in opposite directions, creating three-dimensional turbulence, combined with an array of metal rods, greatly improving fiber dispersion efficiency and significantly reducing the concentration difference between the center and edge areas; the ultrasonic collaborative system generates cavitation through high-frequency vibration, not only preventing fiber sedimentation but also promoting fiber fracturing, significantly improving the paper's bursting strength index, while also assisting in cleaning the tank walls, reducing the frequency of manual cleaning; the intelligent closed-loop control system integrates a fiber optic concentration sensor and a central controller, dynamically adjusting the drive speed, lifting position, and ultrasonic power in real time, adapting to raw material fluctuations and providing early warning of faults; the high efficiency of magnetic transmission, combined with an adjustable ultrasonic module, reduces overall energy consumption and the amount of chemical dispersant used; the modular design supports quick assembly and disassembly, and the wear-resistant coating extends the replacement cycle of key components, significantly reducing single maintenance time. This equipment comprehensively solves the problems of high pollution risk, uneven mixing, high energy consumption and complex maintenance of traditional paper troughs, significantly improves pulp quality stability and production efficiency, is suitable for the refined production needs of high-end papermaking, and helps the industry upgrade to low carbon. Attached Figure Description

[0010] Figure 1 This is a front sectional view of a paper-lifting trough for convenient pulp stirring according to the present invention.

[0011] Figure 2 This is a top cross-sectional view of a paper trough for convenient pulp stirring according to the present invention.

[0012] In the diagram: 1. Paper scooping pool; 2. Paper scooping support; 3. Lifting slide; 4. Convex lifting groove; 5. Cylindrical magnet; 6. Lifting limit shaft; 7. Lifting slider; 8. Lifting hole; 9. Lifting ring electromagnet; 10. Lifting ring magnet; 11. Locking hole; 12. Locking telescopic block; 13. Electromagnetic telescopic device; 14. Lifting adjusting block; 15. Stirring ring; 16. Metal rod; 17. Drive shaft; 18. Drive gear. Detailed Implementation

[0013] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0014] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires. Appropriate controllers and encoders should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control further. Example

[0015] Please see Figure 1-2 In the papermaking industry, the paper trough is a key piece of equipment for pulp formation. Its core function is to achieve uniform dispersion of pulp fibers through stirring and guiding, providing a stable pulp for subsequent papermaking processes. However, traditional paper troughs have significant technical defects in their structural design, which restricts the improvement of papermaking efficiency and product quality. The lifting and adjustment and stirring drive of traditional paper troughs mostly rely on mechanical transmission components (such as gears, chains, or hydraulic systems). During long-term operation, mechanical friction can easily lead to component wear, which not only increases maintenance costs but may also contaminate the pulp with metal debris, affecting the whiteness and cleanliness of the finished product. In addition, the mechanical seal structure is prone to failure in humid environments, causing lubricating oil leakage and further aggravating the risk of contamination.

[0016] Therefore, this application protects a paper-collecting trough for convenient pulp stirring. When the lifting ring electromagnet 9 inside the lifting slide 3 is energized, it magnetically repels the lifting ring magnet 10, causing the lifting ring magnet 10 to drive the lifting slider 7 on it to move stably up and down along the inner side of the lifting slide 3. The paired lifting sliders 7 drive the lifting adjustment blocks 14 on them to move stably up and down, thereby changing the height of the lifting adjustment blocks 14 inside the paper-collecting pool 1. The arc-shaped magnet block inside the drive tube on the lifting adjustment block 14 magnetically drives the metal wire on the T-shaped support block, causing multiple T-shaped support blocks to rotate magnetically, thus making the T-shaped support blocks rotate. The support block drives the drive shaft 17 to rotate, which in turn drives the drive gear 18 on it. The drive gear 18 drives the drive gear 18 meshing with it, thereby causing multiple drive gears 18 to rotate in a cross manner. The multiple drive gears 18 drive the cylindrical magnets 5 on them to rotate in a cross manner. The multiple cylindrical magnets 5 transmit magnetism to multiple metal rods 16, which in turn transmit magnetism to the cylindrical magnets 5 on multiple stirring rings 15. This causes the multiple stirring rings 15 to rotate in a cross manner, thereby drawing the mixed liquid inside the paper-collecting pool 1 towards the center through the stirring of multiple cross-rotation rings.

[0017] In summary, the process is as follows: First, the energization of the lifting ring electromagnet 9 within the lifting slide 3 generates magnetic repulsion, driving the lifting slider 7 to move stably along the convex lifting groove. This, in turn, causes the lifting adjustment block 14 to adjust its height to accommodate different pulp concentrations. Subsequently, the energization of the arc-shaped magnet block within the drive tube creates a rotating magnetic field, driving the metal wire on the T-shaped support block to rotate. This, in turn, drives the drive shaft 17 and the cross-meshing drive gears 18 through multi-stage transmission. At this time, the cylindrical magnet 5 on the drive gear 18 transmits its magnetism to the metal rod 16, which in turn drives the cylindrical magnet 5 on the stirring ring 15, causing multiple stirring rings 15 to rotate in a cross direction, creating turbulence and guiding the pulp towards the center for uniform mixing. Simultaneously, the ultrasonic vibrator inside the paper collection tank 1 is activated, using the cavitation effect generated by high-frequency sound waves to prevent fiber sedimentation and decompose fibers. The equipment further enhances mixing uniformity by employing non-contact magnetic drive technology. It utilizes the magnetic repulsion and coupling principle of electromagnets to achieve lifting adjustment and power transmission, avoiding mechanical friction loss and pollution risks, and reducing maintenance costs. The cross-rotation stirring mechanism, through multi-stage transmission and an array of stirring rings (15), expands the coverage area and reduces mixing dead zones, significantly improving fiber dispersion efficiency. The ultrasonic synergistic effect not only strengthens the stirring effect but also promotes fiber filamentation to improve paper strength, while simultaneously assisting in cleaning the tank walls. Furthermore, the equipment features high adjustability, energy efficiency (low energy consumption due to magnetic drive, reduced use of chemical additives), and convenient operation (integrated control, modular structure), effectively solving the problems of uneven mixing, easy sedimentation, and high maintenance costs associated with traditional paper-retrieving tanks. It is suitable for the refined production needs of high-end papermaking.

[0018] 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 paper-lifting trough for convenient pulp stirring, characterized in that, The system includes a paper-collecting pool (1), on which a paper-collecting support (2) is installed. An agitator is installed on both the paper-collecting pool (1) and the paper-collecting support (2). The agitator includes four pairs of lifting slides (3). A convex lifting groove (4) is formed on the inner side of each lifting slide (3). A lifting limit shaft (6) is installed on the inner side of the convex lifting groove (4). A lifting slider (7) is installed on the inner side of the convex lifting groove (4). A lifting hole (8) is formed on the lifting slider (7). A linear bearing is installed on the inner side of the lifting hole (8). The lowering slider (7) is movably mounted on the lifting limit shaft (6) via a linear bearing. A pair of lifting ring electromagnets (9) are installed on the inner side of the convex lifting groove (4). The upper and lower ends of the lifting slider (7) are respectively installed on the lifting ring magnets (10). A pair of locking holes (11) are provided on the lifting slide (3). Locking telescopic blocks (12) are respectively installed on the inner side of the pair of locking holes (11). Electromagnetic telescopic devices (13) are installed on the inner side of the locking holes (11). Lifting adjustment blocks (14) are installed on the pair of lifting sliders (7).

2. The paper-collecting trough for convenient pulp stirring according to claim 1, characterized in that, The lifting adjustment block (14) has multiple stirring ring (15) slots and a drive slot. A stirring ring (15) is installed inside the stirring ring (15) slot. The stirring ring (15) is movably inserted into the stirring ring (15) slot via bearings. The lifting adjustment block (14) is provided with multiple metal rods (16), which are arranged in a ring-shaped array. The multiple metal rods (16) are connected to the multiple stirring ring (15) slots and the drive slot. Multiple drive shafts (17) are installed inside the drive slot. 7) The drive shafts (17) are evenly inserted into the inner side of the drive groove. Drive gears (18) are installed on the drive shafts (17) respectively, and the drive gears (18) mesh with each other. Cylindrical magnets (5) are installed on the stirring rings (15) and the drive gears (18) respectively. Multiple T-shaped support blocks are installed on the drive shafts (17), and metal wires are installed on the T-shaped support blocks respectively. A drive tube is installed on the inner side of the drive groove. The drive tube is fitted onto the drive shaft (17), and multiple arc magnet blocks are installed on the inner side of the drive tube.

3. The paper-collecting trough for convenient pulp stirring according to claim 2, characterized in that, An ultrasonic vibrator is installed on the inner side of the paper-collecting pool (1).

4. A paper-lifting trough for convenient pulp stirring according to claim 3, characterized in that, A vibration sensor is installed on the outside of the lifting slide (3).

5. A paper-collecting trough for convenient pulp stirring according to claim 4, characterized in that, A central controller is provided on the paper retrieval pool (1), and the vibration sensor signal is connected to the central controller.

6. A paper-lifting trough for convenient pulp stirring according to claim 5, characterized in that, The inner wall of the paper-collecting pool (1) is provided with a concentration detection ring, which includes multiple array-type fiber optic sensors, and the fiber optic sensor signals are connected to the central controller.

Images