Pulper for paper pulp production

Abstract

The utility model relates to the field of paper pulp production, in particular to a pulper for paper pulp production, which comprises a rack and a pulping tank, a motor is arranged on the rack, a pulping wheel set is arranged in the pulping tank and comprises a sun gear, a planetary gear and a pulp scraping ring, the sun gear is connected to an output shaft of the motor, the planetary gear is rotatably connected to a planet carrier, and the pulp scraping ring is connected to the planet carrier. The planet carrier is fixedly connected with the machine frame, the inner ring of the pulp scraping ring is meshed with the planet gear, the outer ring of the pulp scraping ring and the pulping tank are rotationally arranged, and a plurality of pulp scraping rods abutting against the inner wall of the pulp scraping tank are arranged on the pulp scraping ring; when the sun gear drives the first repulping assembly and the second repulping assembly to perform repulping operation, a pulp scraping ring drives a pulp scraping rod to scrape floccules on the inner wall of the repulping tank, so that the problem that paper pulp is attached to the inner wall in the repulping process of repulping equipment in the prior art is solved; and synchronous crushing and uniform mixing of paper pulp in the pulping tank are realized.

Description

Technical Field

[0001] This utility model relates to the field of pulp production, and in particular to a pulper for pulp production. Background Technology

[0002] Pulp is an important raw material for papermaking. Before pulping, the paper is often crushed into strips by a crusher. When the paper strips enter the pulper, the auger blades have limited crushing ability and will transport the paper strips to one end of the pulper, causing the paper strips to easily clump together. This further increases the resistance to shredding, reduces the efficiency of pulp production, and the resulting pulp, being clump together, is also not conducive to subsequent grinding and refining.

[0003] Understandably, since traditional pulpers mostly use rotating crushing structures such as augers, during the pulping process, some of the pulp adheres to the inner wall under the action of centrifugal force. Due to the high surface tension of the pulp, the adhered pulp is not easy to detach, which affects the overall crushing efficiency. Utility Model Content

[0004] The main purpose of this utility model is to provide a pulper for pulp production, which aims to solve the problem of pulp adhering to the inner wall during the pulping process in existing pulping equipment.

[0005] To achieve the above objectives, this utility model provides a pulper for pulp production, comprising a frame and a pulping tank. A motor is mounted on the frame, and a pulping wheel assembly is disposed inside the pulping tank. The pulping wheel assembly includes a sun gear, planetary gears, and a scraper ring. The sun gear is connected to the output shaft of the motor, and the planetary gears are rotatably connected to a planetary carrier. The planetary carrier is fixedly connected to the frame. The inner ring of the scraper ring meshes with the planetary gears, and the outer ring of the scraper ring is rotatably disposed with respect to the pulping tank. The scraper ring is provided with a plurality of scraper rods that abut against the inner wall of the scraper tank.

[0006] Optionally, the output shaft of the motor is connected to a first pulping assembly, which includes two pulping blades arranged in opposite directions.

[0007] Optionally, the planetary gear shaft is connected to a pulping plate, and the pulping plate is provided with several cutting edges at an angle.

[0008] Optionally, the contact surface between the scraper ring and the pulping tank is provided with a groove, and a plurality of ball bearings are provided in the groove.

[0009] Optionally, the output shaft of the motor is also connected to a second pulping assembly. The second pulping assembly includes a scraper seat and a plurality of pulping blades. The plurality of pulping blades are evenly distributed at intervals on the scraper seat, and the scraper seat is fixedly connected to the bottom of the motor output shaft.

[0010] Optionally, the outer diameter of the scraper seat increases from top to bottom.

[0011] Optionally, a plurality of the pulping blades are inclined on the scraper seat, and the inclination direction of the blade edge is opposite to the inclination direction of the pulping blade.

[0012] Optionally, the opening of the pulping tank is detachably connected to a tank lid.

[0013] This invention completes the pulping process by rotating the pulping blade and pulping blade. At the same time, since the sun gear, planetary gear, and scraper ring form a planetary gear set, and the planetary carrier is fixed on the frame, the sun gear uses a motor as the power input and the scraper ring as the power output. In addition, since the scraper ring is equipped with a scraper rod, when the sun gear drives the first pulping component and the second pulping component to perform pulping operations, the scraper ring drives the scraper rod to scrape off the clumps on the inner wall of the pulping tank. This solves the problem of pulp adhering to the inner wall during the pulping process in existing pulping equipment, and realizes the synchronous crushing and uniform mixing of pulp in the pulping tank. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the complete axial view structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the axial view structure of this utility model;

[0016] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 4 This is a schematic diagram of the internal structure of the present invention;

[0018] Figure 5 for Figure 3 A magnified structural diagram of A in the middle.

[0019] Figure label:

[0020] 1-Frame, 2-Pulping tank, 3-Pulping wheel assembly, 4-Motor, 5-First pulping assembly, 6-Second pulping assembly, 7-Tank cover;

[0021] 31-Sun gear, 32-Planetary gear, 33-Scraper ring, 34-Planetary carrier, 35-Scraper rod, 36-Pulp breaking plate, 37-Cutting edge;

[0022] 331 - Slide groove, 332 - Ball bearing;

[0023] 51-Pulping knife;

[0024] 61-Scraper seat, 62-Pulp-breaking blade.

[0025] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. 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] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0030] Example 1:

[0031] Please refer to the attached document as well. Figure 1 To be continued Figure 5This embodiment provides a pulper for pulp production, including a frame 1 and a pulp tank 2. A motor 4 is mounted on the frame 1, and a pulping wheel assembly 3 is mounted inside the pulp tank 2. The pulping wheel assembly 3 includes a sun gear 31, a planetary gear 32, and a scraper ring 33. The sun gear 31 is connected to the output shaft of the motor 4, and the planetary gear 32 is rotatably connected to a planetary carrier 34. The planetary carrier 34 is fixedly connected to the frame 1. The inner ring of the scraper ring 33 meshes with the planetary gear 32, and the outer ring of the scraper ring 33 is rotatably mounted with the pulp tank 2. The scraper ring 33 is provided with a plurality of scraper rods 35 that abut against the inner wall of the scraper tank.

[0032] It should be noted that since traditional pulpers basically use rotating crushing structures such as augers, during the pulping process, some of the pulp adheres to the inner wall under the action of centrifugal force. Due to the high surface tension of the pulp, the adhered pulp is not easy to fall off, which affects the overall crushing efficiency.

[0033] Based on the above problems, the applicant proposed a pulper for pulp production. This pulper uses a pulping wheel assembly 3 within the pulping tank 2 to simultaneously perform pulping and scraping operations. Specifically, a first pulping component 5 and a second pulping component 6 for pulping are mounted on the gear shaft of the sun gear 31. The pulping process is completed by the rotation of the pulping blades 51 and 62. Furthermore, the sun gear 31, planetary gears 32, and scraper ring 33 form a planetary gear set 32, with the planetary carrier 34 fixed. On the frame 1, the sun gear 31 uses the motor 4 as the power input and the scraper ring 33 as the power output. In addition, since the scraper ring 33 is equipped with a scraper rod 35, when the sun gear 31 drives the first pulping component 5 and the second pulping component 6 to perform pulping operations, the scraper ring 33 drives the scraper rod 35 to scrape off the clumps on the inner wall of the pulping tank 2. This solves the problem of pulp adhering to the inner wall during the pulping process in the prior art pulping equipment, and realizes the synchronous crushing and uniform mixing of pulp in the pulping tank 2.

[0034] In this embodiment, the output shaft of the motor 4 is connected to a first pulping assembly 5, which includes two opposing pulping blades 51. It is understood that traditional pulpers typically utilize rotating crushing structures such as augers, which have limited crushing capacity for paper strips and easily cause the paper strips to clump together, increasing shredding resistance and reducing pulp production efficiency. However, by setting two opposing pulping blades 51, the pulp can be cut and crushed more effectively under the drive of the motor 4, preventing paper strip clumping and thus improving pulping efficiency.

[0035] When motor 4 starts, the sun gear 31 rotates, which in turn drives the planetary gear 32 meshing with it. The planetary gear 32 is mounted on the planetary carrier 34, which is fixed to the frame 1. The rotation of the planetary gear 32 then drives the outer ring of the scraper ring 33 to rotate. Simultaneously, the two opposing scraper blades 51 in the first pulping assembly 5 rotate at high speed under the drive of motor 4, initially breaking down the paper strips entering the pulping tank 2. The broken pulp is then scraped by the scraper rods 35 on the scraper ring 33 within the pulping tank 2, preventing it from adhering to the tank wall and ensuring that the pulp is evenly distributed and continuously broken down within the tank. Based on this process, not only are the problems of pulp adhesion and agglomeration solved, but also the synchronous breaking down and uniform mixing of the pulp within the pulping tank 2 are achieved. Through the initial breaking down by the first pulping assembly 5 and the synergistic effect of subsequent components, the pulp can be fully dispersed and uniformly processed within the pulping tank 2, which is beneficial for subsequent grinding and refining of the pulp.

[0036] In this embodiment, the planetary gear 32 has a pulping plate 36 connected to its gear shaft. The pulping plate 36 has several obliquely angled cutting edges 37. The pulping plate 36 with the cutting edges 37 can more finely cut and crush the pulp during the rotation of the planetary gear 32. Furthermore, the cutting edges 37 reduce rotational resistance during crushing. Because the pulping plate 36 is connected to the gear shaft of the planetary gear 32, the cutting edges 37 on the pulping plate 36, under the combined action of the planetary gear 32's revolution and rotation, perform multi-angle, high-intensity cutting and crushing of the pulp. Simultaneously, the scraper ring 33 rotates under the drive of the sun gear 31, and its scraper rod 35 scrapes away the pulp from the inner wall of the pulping tank 2, preventing pulp adhesion and ensuring that the pulp is evenly distributed and continuously crushed within the tank.

[0037] In this embodiment, the contact surface between the scraper ring 33 and the pulp tank 2 is provided with a groove 331, and a plurality of balls 332 are disposed in the groove 331. Based on the above structure, the groove 331 and the balls 332 on the scraper ring 33 form rolling friction in the area in contact with the inner wall of the pulp tank 2. Specifically, when the scraper ring 33 rotates, the balls 332 roll in the groove 331, which greatly reduces the friction between the scraper ring 33 and the tank wall. This rolling friction not only allows the scraper ring 33 to move more smoothly on the tank wall, but also more effectively scrapes off the pulp clumps attached to the tank wall.

[0038] In this embodiment, the output shaft of the motor 4 is also connected to a second pulping assembly 6. The second pulping assembly 6 includes a scraper seat 61 and a plurality of pulping blades 62. The plurality of pulping blades 62 are evenly distributed at intervals on the scraper seat 61. The scraper seat 61 is fixedly connected to the bottom of the output shaft of the motor 4. The outer diameter of the scraper seat 61 increases from top to bottom.

[0039] Understandably, in traditional pulpers, pulp clumps tend to settle to the bottom of the pulping tank 2 during the pulping process, forming bottom clumps that are difficult to break up, resulting in uneven pulping and affecting pulp quality and production efficiency. Based on the above structure, to further enhance the pulping capacity of the pulper, a second pulping component 6 is added, which can perform more comprehensive and detailed cutting and breaking of the pulp under the drive of the motor 4. Specifically, the second pulping component 6 at the bottom of the output shaft of the motor 4 also rotates at high speed. The pulping blades 62 on the scraper 61 further cut and break up the pulp clumps that have settled to the bottom of the pulping tank 2. The scraper ring 33 rotates under the drive of the sun gear 31, and the scraper rod 35 on it scrapes the pulp off the inner wall of the pulping tank 2 to prevent pulp from adhering and ensure that the pulp is evenly distributed and continuously broken up in the tank. During this process, the design of the scraper 61 of the second pulping assembly 6, with its outer diameter increasing from top to bottom, generates a gradually increasing thrust during rotation, lifting the settled pulp clumps upwards and causing them to re-enter the central area of ​​the pulping tank 2, thus preventing the formation of clumps at the bottom. Simultaneously, the inclined setting of the pulping blade 62 and the reverse inclination of the blade edge 37 enable a more efficient pulping effect during cutting, reducing energy loss.

[0040] In this embodiment, several pulping blades 62 are inclinedly arranged on the scraper seat 61, and the inclination direction of the cutting edge 37 is opposite to the inclination direction of the pulping blade 62. During the overall operation of the pulper, the planetary gear 32, the sun gear 31, the scraper ring 33, and other structures together constitute a complex pulping wheel assembly 3. When the motor 4 starts, the sun gear 31 rotates first, thereby driving the planetary gear 32 meshing with it to revolve. Simultaneously, the planetary gear 32 itself also rotates around its gear shaft. Since the pulping plate 36 is connected to the gear shaft of the planetary gear 32, the cutting edge 37 on the pulping plate 36, under the dual action of the planetary gear 32's revolution and rotation, performs multi-angle, high-intensity cutting and crushing of the pulp. At the same time, the scraper ring 33 rotates under the drive of the sun gear 31, and its scraper rod 35 scrapes the pulp from the inner wall of the pulping tank 2, preventing pulp adhesion and ensuring that the pulp is evenly distributed and continuously crushed within the tank. In another preferred embodiment, the second pulping component 6 is separately installed at the bottom of the pulping tank 2 and driven by another motor 4 to achieve reverse crushing of the first crushing component and the second crushing component.

[0041] In this embodiment, a lid 7 is detachably connected to the opening of the pulping tank 2. The lid 7 helps to protect the internal structure of the crusher.

[0042] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A pulper for pulp production, characterized in that, The device includes a frame and a pulping tank. A motor is mounted on the frame, and a pulping wheel assembly is installed inside the pulping tank. The pulping wheel assembly includes a sun gear, planetary gears, and a scraper ring. The sun gear is connected to the output shaft of the motor, and the planetary gears are rotatably connected to a planetary carrier. The planetary carrier is fixedly connected to the frame. The inner ring of the scraper ring meshes with the planetary gears, and the outer ring of the scraper ring is rotatably disposed with the pulping tank. The scraper ring is provided with several scraper rods that abut against the inner wall of the scraper tank.

2. A pulper for pulp production as described in claim 1, characterized in that, The output shaft of the motor is connected to a first pulping assembly, which includes two pulping blades arranged in opposite directions.

3. A pulper for pulp production as described in claim 2, characterized in that, The planetary gear shaft is connected to a pulping plate, and the pulping plate has several cutting edges at an angle.

4. A pulper for pulp production as described in claim 1, characterized in that, The contact surface between the scraper ring and the pulping tank is provided with a groove, and a number of ball bearings are provided in the groove.

5. A pulper for pulp production as described in claim 3, characterized in that, The output shaft of the motor is also connected to a second pulping assembly. The second pulping assembly includes a scraper seat and a plurality of pulping blades. The plurality of pulping blades are evenly distributed at intervals on the scraper seat. The scraper seat is fixedly connected to the bottom of the motor output shaft.

6. A pulper for pulp production as described in claim 5, characterized in that, The outer diameter of the scraper increases from top to bottom.

7. A pulper for pulp production as described in claim 5, characterized in that, Several of the pulping blades are inclined on the scraper seat, and the inclination direction of the blade edge is opposite to the inclination direction of the pulping blade.

8. A pulper for pulp production as described in claim 1, characterized in that, The opening of the pulping tank is detachably connected to a tank lid.

Images