pulp crusher

Abstract

This utility model discloses a pulp crusher for pulp production, belonging to the field of pulp production technology, aiming to solve the technical problem of low pulp crushing efficiency in the prior art. The pulp crusher includes a crushing cylinder and a feeding cylinder. The crushing cylinder is arranged vertically, with a central roller coaxially arranged inside. A second crushing blade is arranged on the circumferential surface of the central roller, and a first crushing blade is arranged on the inner circular surface of the crushing cylinder. The first and second crushing blades are interspersed. The feeding cylinder is located at the top of the crushing cylinder, and its bottom end is connected to the crushing cylinder. A motor for driving the central roller to rotate is installed on the feeding cylinder. A support rod is installed at the bottom inside the crushing cylinder, and a shaft support is installed on the support rod. The bottom end of the central roller is rotatably connected to the shaft support. This pulp crusher for pulp production adopts a spiral cutting method, which improves the crushing efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of pulp production technology, specifically relating to a pulp crusher for pulp production. Background Technology

[0002] In the pulp production industry, pulping is a crucial step, its purpose being to break down recycled waste paper, wood, and other raw materials into fibrous pulp of a certain fineness, providing suitable raw materials for subsequent papermaking processes. With the continuous development of the papermaking industry and increasingly stringent environmental protection requirements, the demands on pulping equipment are also rising.

[0003] Traditional pulping equipment comes in many varieties, commonly including hydraulic pulpers and disc pulpers. Hydraulic pulpers primarily rely on the impact and agitation of water flow to disperse and break down raw materials. They are relatively simple in structure and easy to operate, and were widely used in early pulp production. However, hydraulic pulpers have significant drawbacks. Firstly, their pulping efficiency is low. For some tougher raw materials, such as waste paper with plastic film or adhesives, they are difficult to fully break down, resulting in pulp containing a large amount of unbroken impurities, affecting paper quality. Secondly, hydraulic pulpers consume a large amount of water and generate significant wastewater during the pulping process, increasing the cost and difficulty of wastewater treatment, which does not meet current environmental protection requirements for energy conservation and emission reduction. Disc pulpers, on the other hand, use pulping blades placed between a rotating and a fixed disc. The rotation and shearing action of the blades break down the raw materials. Compared to hydraulic pulpers, disc pulpers improve pulping efficiency to some extent and can handle some more complex raw materials. However, disc pulpers also have some problems. Its structure is relatively complex, resulting in high manufacturing and maintenance costs. Furthermore, the blades wear out quickly and require frequent replacement, increasing production costs. In addition, disc pulpers tend to generate significant noise and vibration during the pulping process, which can negatively impact the working environment.

[0004] Therefore, this application proposes a pulp shredder for pulp production to solve the above problems. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a pulp disintegrator for pulp production, which aims to solve the technical problem of low pulp disintegration efficiency under the existing technology.

[0006] Technical solution

[0007] To solve the above-mentioned technical problems, this utility model provides a pulping machine for pulp production, including a pulping cylinder and a feeding cylinder. The pulping cylinder is arranged vertically, and a central roller is coaxially arranged inside the pulping cylinder. A second pulping blade is arranged on the circumferential surface of the central roller, and a first pulping blade is arranged on the inner circular surface of the pulping cylinder. The first and second pulping blades are interspersed. The feeding cylinder is located at the top of the pulping cylinder, and the bottom end of the feeding cylinder is connected to the pulping cylinder. A motor for driving the central roller to rotate is provided on the feeding cylinder.

[0008] Preferably, a support rod is provided at the bottom of the inside of the crushing cylinder, and a shaft support is provided on the support rod, with the bottom end of the central roller rotatably connected to the shaft support.

[0009] Preferably, a base plate is fixedly fitted at the bottom of the crushing cylinder, and support columns are vertically fixed at the four corners of the bottom of the base plate.

[0010] Preferably, the bottom of the feeding cylinder is configured as a bucket-shaped structure and is connected to a connecting pipe.

[0011] Preferably, the top of the crushing cylinder is provided with a top cover, the top cover is a conical cap structure, the bottom end of the connecting pipe is connected to the top cover, and the top end of the central roller is provided with a conical surface.

[0012] Preferably, a horizontal plate is fixed to the top of the feeding cylinder, the motor is mounted on the horizontal plate, a transmission rod is vertically and rotatably mounted at the bottom of the horizontal plate, the top end of the transmission rod is connected to the output shaft of the motor, and the bottom end of the transmission rod passes through the connecting pipe and the top cover and is connected to the central roller.

[0013] Preferably, the transmission rod is provided with helical blades.

[0014] Preferably, the first and second fragmentation blades are arranged in a spiral shape, and the first and second fragmentation blades are in the same direction of rotation as the spiral blades.

[0015] Beneficial effects

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] In this invention, the first and second crushing blades are interspersed and arranged in a spiral shape, which increases the contact area and contact time between the blades and the raw materials. At the same time, the spiral blades assist in the conveying and initial crushing of the raw materials, so that the raw materials can be fully crushed in the crushing cylinder, which greatly improves the crushing efficiency.

[0018] In this invention, the top cover is a conical cap structure and the top of the central roller is set as a conical surface, which effectively prevents the raw materials from accumulating at the top of the crushing cylinder and the top of the central roller during the crushing process, ensuring that the raw materials can smoothly enter the crushing area and improving the operational stability of the equipment. Attached image description:

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the crushing cylinder and the feeding cylinder in this utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the crushing cylinder in this utility model;

[0023] Figure 4 This is a schematic diagram of the feeding cylinder and the central roller in this utility model;

[0024] Figure 5 This is a schematic diagram of the feeding cylinder, connecting pipe, and top cover in this utility model.

[0025] The labels in the attached diagram are as follows: 1. Crushing cylinder; 2. Feeding cylinder; 3. Connecting pipe; 4. Top cover; 5. Horizontal plate; 6. Motor; 7. Base plate; 8. Support column; 9. Central shaft roller; 10. First crushing blade; 11. Support rod; 12. Shaft support; 13. Second crushing blade; 14. Transmission rod; 15. Spiral blade. 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] This embodiment provides a pulp disintegrator for pulp production, the structural schematic diagram of which is shown below. Figures 1-5 As shown, it includes a crushing cylinder 1 and a feeding cylinder 2.

[0028] In this embodiment, the pulping cylinder 1 is arranged vertically, and a central roller 9 is coaxially arranged inside the pulping cylinder 1. Multiple second pulping blades 13 are evenly arranged on the circumferential surface of the central roller 9, and multiple first pulping blades 10 are correspondingly arranged on the inner circular surface of the pulping cylinder 1. The first pulping blades 10 and second pulping blades 13 are interspersed, and this distribution allows the first pulping blades 10 and second pulping blades 13 to cooperate with each other when the central roller 9 rotates, thus more effectively pulping the pulp raw materials. A support rod 11 is provided at the bottom inside the pulping cylinder 1, and a shaft support 12 is installed on the support rod 11. The shaft support 12 supports the bottom end of the central roller 9, allowing the central roller 9 to rotate on the shaft support 12.

[0029] Furthermore, both the first crushing blade 10 and the second crushing blade 13 are arranged in a spiral shape. This spiral design can increase the contact area and contact time between the blade and the raw material, thereby improving the crushing efficiency.

[0030] In a further embodiment, the feeding cylinder 2 is located at the top of the crushing cylinder 1, and the bottom end of the feeding cylinder 2 is configured as a bucket-shaped structure and is connected to the crushing cylinder 1 through a connecting pipe 3. The bucket-shaped structure facilitates the smooth entry of raw materials into the connecting pipe 3 and their falling into the crushing cylinder 1. A horizontal plate 5 is fixed to the top of the feeding cylinder 2, and a motor 6 is installed on the horizontal plate 5 as a power source to drive the rotation of the central shaft roller 9.

[0031] Furthermore, the top of the crushing cylinder 1 is provided with a top cover 4, which has a conical cap structure. The bottom end of the connecting pipe 3 is connected to the top cover 4, and the top of the central roller 9 is set as a conical surface. This design can prevent the raw materials from accumulating at the top of the crushing cylinder 1 and the top of the central roller 9 during the crushing process, ensuring that the raw materials can smoothly enter the crushing area.

[0032] Furthermore, in this embodiment, a transmission rod 14 is vertically and rotatably mounted at the bottom of the horizontal plate 5. The top end of the transmission rod 14 is connected to the output shaft of the motor 6, and the bottom end of the transmission rod 14 passes through the connecting pipe 3 and the top cover 4 and is connected to the central roller 9, thereby transmitting the power of the motor 6 to the central roller 9 and driving the central roller 9 to rotate. A spiral blade 15 is provided on the transmission rod 14, and the spiral blade 15 rotates in the same direction as the first crushing blade 10 and the second crushing blade 13. When the transmission rod 14 rotates, the spiral blade 15 can assist in conveying the raw material downwards, while simultaneously performing preliminary stirring and crushing of the raw material.

[0033] Furthermore, a base plate 7 is fixedly fitted at the bottom of the crushing cylinder 1, and support columns 8 are vertically fixed at the four corners of the bottom of the base plate 7. The support columns 8 serve to support the entire crusher and keep the crusher stable during operation.

[0034] Working principle:

[0035] In use, the pulp raw material is first poured into the feeding cylinder 2. Under the action of gravity, the raw material enters the connecting pipe 3 along the bucket-shaped structure of the feeding cylinder 2. The motor 6 is started, and the output shaft of the motor 6 drives the transmission rod 14 to rotate. The spiral blades 15 on the transmission rod 14 rotate accordingly, conveying the raw material in the connecting pipe 3 downward and entering the crushing cylinder 1 through the top cover 4.

[0036] The transmission rod 14 drives the central roller 9 to rotate on the shaft support 12, and the second pulping blade 13 on the central roller 9 also rotates accordingly. Since the first pulping blade 10 is fixed on the inner circular surface of the pulping cylinder 1 and is interspersed with the second pulping blade 13, when the second pulping blade 13 rotates, it cooperates with the first pulping blade 10 to cut, squeeze, and tear the raw material entering the pulping cylinder 1, thereby achieving the pulping of the raw material. The spiral blade 15 rotates in the same direction as the first pulping blade 10 and the second pulping blade 13, which can further assist in the conveying and pulping of the raw material, so that the raw material is fully pulped in the pulping cylinder 1, and finally obtains pulp that meets the requirements.

[0037] All technical features in this embodiment can be freely combined according to actual needs.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pulp disintegrator for pulp production, characterized in that, include: A crushing cylinder (1) is arranged vertically. A central shaft roller (9) is coaxially arranged inside the crushing cylinder (1). A second crushing blade (13) is arranged on the circumferential surface of the central shaft roller (9). A first crushing blade (10) is arranged on the inner circular surface of the crushing cylinder (1). The first crushing blade (10) and the second crushing blade (13) are interspersed. Feeding cylinder (2) is located at the top of crushing cylinder (1). The bottom end of feeding cylinder (2) is connected to crushing cylinder (1). A motor (6) for driving the central shaft roller (9) to rotate is provided on feeding cylinder (2).

2. The pulp disintegrator according to claim 1, characterized in that, The crushing cylinder (1) has a support rod (11) at its bottom, and a shaft support (12) is provided on the support rod (11). The bottom end of the central roller (9) is rotatably connected to the shaft support (12).

3. The pulp disintegrator according to claim 1, characterized in that, The bottom of the crushing cylinder (1) is fixedly fitted with a base plate (7), and support columns (8) are vertically fixed at the four corners of the bottom of the base plate (7).

4. The pulp disintegrator according to claim 1, characterized in that, The bottom of the feeding cylinder (2) is configured as a bucket-shaped structure and is connected to a connecting pipe (3).

5. The pulp disintegrator according to claim 4, characterized in that, The top of the crushing cylinder (1) is provided with a top cover (4), which has a conical cap structure. The bottom end of the connecting pipe (3) is connected to the top cover (4), and the top end of the central roller (9) is set as a conical surface.

6. The pulp disintegrator according to claim 4, characterized in that, The top of the feeding cylinder (2) is horizontally fixed with a horizontal plate (5), the motor (6) is installed on the horizontal plate (5), and the bottom of the horizontal plate (5) is vertically rotatably mounted with a transmission rod (14). The top of the transmission rod (14) is connected to the output shaft of the motor (6), and the bottom of the transmission rod (14) passes through the connecting pipe (3) and the top cover (4) and is connected to the central roller (9).

7. The pulp disintegrator according to claim 6, characterized in that, The transmission rod (14) is provided with a helical blade (15).

8. The pulp disintegrator according to claim 7, characterized in that, The first fragmentation blade (10) and the second fragmentation blade (13) are arranged in a spiral shape, and the first fragmentation blade (10) and the second fragmentation blade (13) have the same spiral direction as the spiral blade (15).

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