A pulp disc bleaching apparatus for papermaking

By introducing a chute and slider structure into the pulp pan bleaching equipment, and using a drive motor to drive a scraper to automatically clean floating impurities, the problem of impurity accumulation at the top of the equipment is solved, improving production efficiency and safety.

CN224494722UActive Publication Date: 2026-07-14VINDA PAPER (CHINA) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
VINDA PAPER (CHINA) CO LTD
Filing Date
2025-07-22
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

During the use of existing pulp pan bleaching equipment, impurities and debris easily float on the top of the equipment, requiring frequent manual cleaning, which affects production efficiency and operator safety, and poses safety risks.

Method used

Design a bleaching device body with a chute and a slider. Drive a motor to drive a reciprocating screw and a slide bar to realize the reciprocating movement of the scraper, automatically clean up floating impurities, and reduce manual intervention.

Benefits of technology

It enables automated cleaning of floating impurities, reduces the labor intensity of operators, and improves production efficiency and equipment performance.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224494722U_ABST
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Abstract

The utility model relates to bleaching equipment technical field, concretely is a kind of paper pulp disc bleaching equipment for papermaking, including bleaching equipment body, the top of bleaching equipment body is equipped with the chute in both sides, the inner wall left side of chute is slidably connected with slider, the top of slider in both sides is installed with moving plate, the bottom of moving plate is installed with scraper, the left upper portion of bleaching equipment body is installed with driving motor, the output of driving motor is installed with reciprocating lead screw, the inner wall of rear side chute is installed with slide rod, the right end of reciprocating lead screw penetrates front side chute;By driving moving plate reciprocating motion along bleaching equipment top left and right, and synchronously drive scraper to move, so as not to need operating personnel manual cleaning floating impurity scrap, not only convenient for operating personnel's operation, reduce labour intensity, still can further improve the use effect and production efficiency of paper pulp disc bleaching equipment.
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Description

Technical Field

[0001] This utility model relates to the field of bleaching equipment technology, and more specifically, to a pulp pan bleaching device for papermaking. Background Technology

[0002] In the papermaking industry, pulp bleaching equipment is a crucial component. Pulp bleaching is the process of removing colored substances from pulp through chemical or physical methods to improve pulp brightness and purity. However, existing pulp bleaching equipment has a significant problem during long-term use: impurities and debris tend to float to the top of the equipment.

[0003] The sources of these impurities and debris are quite diverse. On the one hand, the pulp itself carries some impurities such as incompletely dissociated fiber bundles and straw. During the bleaching process, due to the flow of liquid and the effect of chemical reactions, some impurities will float to the top of the equipment. On the other hand, some external impurities will also be introduced during the addition of bleaching agents.

[0004] In the papermaking process, pulp bleaching equipment is generally running continuously, and impurities and debris will continuously accumulate at the top. Operators have to perform cleaning operations frequently. This situation not only has an adverse impact on production efficiency, but also significantly increases the labor intensity of operators. In addition, during manual cleaning, operators need to directly contact pulp containing chemical agents and impurities, which undoubtedly poses certain safety risks, thus greatly reducing the effectiveness of the bleaching equipment. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, this utility model provides a pulp pan bleaching device for papermaking, which solves the problem that in the prior art, operators need to manually clean the floating impurities and debris, which is not only inconvenient for operators to use, but also affects the efficiency of production, resulting in poor performance of the bleaching equipment.

[0006] To solve the above technical problems, this utility model provides the following technical solution: a pulp pan bleaching device for papermaking, including a bleaching device body, with sliding grooves on both the front and rear sides of the top of the bleaching device body, a slider slidably connected to the left side of the inner wall of the sliding groove, a movable plate installed on the top of the slider on both the front and rear sides, and a scraper installed on the bottom of the movable plate.

[0007] The bleaching equipment body has a drive motor installed on the upper left side, a reciprocating screw installed at the output end of the drive motor, and a slide rod installed on the inner wall of the rear slide groove.

[0008] The right end of the reciprocating screw passes through the front slide groove and is rotatably connected to the top right side of the bleaching device body.

[0009] The front slider is threadedly connected to the outer left side of the reciprocating screw, while the rear slider is slidably connected to the outer side of the slide rod.

[0010] The movable plate has mounting grooves on both the front and rear sides of its bottom. Mounting blocks are inserted into the inner walls of the mounting grooves. A slot is formed in the middle of the mounting blocks. Two auxiliary grooves are formed in the middle of the movable plate. A lever is slidably connected to the inner wall of the auxiliary groove. A rod is installed on the opposite side of the lever on both the front and rear sides. Movable grooves are formed on both the front and rear sides of the movable plate. Limiting plates are slidably connected to the inner walls of the movable grooves. Springs are installed on the adjacent side of the limiting plates on both the front and rear sides.

[0011] The springs on both the front and rear sides are mounted on the inner wall of the moving groove, the limiting plate is mounted on the outer side of the middle part of the insertion rod, and the mounting block is mounted on the top of the scraper.

[0012] The two ends of the insert rods on the front and rear sides pass through the mounting groove and are inserted into the inner wall of the slot. The insert rods also pass through the moving groove.

[0013] The bottom front and rear sides of the movable plate are both attached to the top of the bleaching equipment body, and the scraper is slidably connected to the upper side of the inner wall of the bleaching equipment body.

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

[0015] In the above solution, by driving the moving plate to move back and forth along the top of the bleaching equipment and simultaneously moving the scraper, the operator does not need to manually clean the floating impurities and debris. This not only facilitates the operation of the operator and reduces labor intensity, but also further improves the use effect and production efficiency of the pulp pan bleaching equipment. 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 slide bar structure of this utility model;

[0018] Figure 3 This is a front view of the present invention;

[0019] Figure 4 for Figure 3 Cross-sectional view of the structure at point AA;

[0020] Figure 5 This is a front view of the movable plate of this utility model;

[0021] Figure 6 for Figure 5 Cross-sectional view of the structure at point BB;

[0022] Figure 7 for Figure 6 Enlarged view of the structure at point C;

[0023] Figure 8 This is a schematic diagram of the mounting block structure of this utility model.

[0024] [Figure Labels]

[0025] 1. Bleaching equipment body; 2. Drive motor; 3. Reciprocating lead screw; 4. Slide rod; 5. Slide groove; 6. Moving plate; 7. Scraper; 8. Slider; 9. Pulley; 10. Auxiliary groove; 11. Mounting block; 12. Moving groove; 13. Insert rod; 14. Spring; 15. Limiting plate; 16. Mounting groove; 17. Slot. Detailed Implementation

[0026] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0027] Example 1: Please refer to Figures 1 to 8 This utility model provides a technical solution: a pulp bleaching device for papermaking, including a bleaching device body 1. Slide grooves 5 are provided on both the front and rear sides of the top of the bleaching device body 1. A slider 8 is slidably connected to the left side of the inner wall of the slide groove 5. A movable plate 6 is installed on the top of the slider 8 on both the front and rear sides, and a scraper 7 is installed on the bottom of the movable plate 6. The bottom of the movable plate 6 is fitted against the top of the bleaching device body 1 on both the front and rear sides. The scraper 7 is slidably connected to the upper side of the inner wall of the bleaching device body 1, thereby using the reciprocating movement of the scraper 7 to clean the floating impurities and debris inside the bleaching device body 1, thus improving its performance.

[0028] First, the sliders 8 on both sides are driven to slide to the right along the inner wall of the chute 5, and the moving plate 6 is driven to move back and forth on the top of the bleaching equipment body 1. Then, the scraper 7 is used to scrape the impurities and debris floating in the bleaching equipment body 1 to the right and push them into the collection box, so that cleaning can be carried out without the need for manual operation by the operator.

[0029] Example 2: Based on Example 1, in order to realize the reciprocating movement of the scraper 7, a drive motor 2 is installed on the upper left side of the bleaching equipment body 1. A reciprocating screw 3 is installed at the output end of the drive motor 2, and a slide rod 4 is installed on the inner wall of the rear slide groove 5. The right end of the reciprocating screw 3 passes through the front slide groove 5 and is rotatably connected to the top right side of the bleaching equipment body 1. Thus, by starting the drive motor 2, the reciprocating screw 3 is driven to rotate synchronously, thereby driving the moving plate 6 to move reciprocally left and right. The front slider 8 is threaded to the outer left side of the reciprocating screw 3, and the rear slider 8 is slidably connected to the outer side of the slide rod 4, thereby synchronously driving the scraper 7 to move reciprocally and increasing its stability during the movement.

[0030] First, start the drive motor 2, which drives the reciprocating screw 3 at its output end to rotate synchronously. At this time, since the front slider 8 is screwed to the reciprocating screw 3 and the rear slider 8 is slidably connected to the slide rod 4, the front and rear sliders 8 are driven to slide to the right along the inner wall of the slide groove 5, and the moving plate 6 moves back and forth on the top of the bleaching equipment body 1. Then, the scraper 7 is used to scrape the impurities and debris floating in the bleaching equipment body 1 to the right, which not only makes it convenient for operators to use, but also improves the use effect of the bleaching equipment body 1.

[0031] Example 3: Based on Example 2, to facilitate the removal of the scraper 7, mounting grooves 16 are provided on both the front and rear sides of the bottom of the movable plate 6. Mounting blocks 11 are inserted into the inner walls of the mounting grooves 16, and slots 17 are provided in the middle of the mounting blocks 11. Two auxiliary grooves 10 are provided in the middle of the movable plate 6, and levers 9 are slidably connected to the inner walls of the auxiliary grooves 10. Insert rods 13 are installed on the opposite sides of the levers 9 on both the front and rear sides. Movable grooves 12 are provided on both the front and rear sides inside the movable plate 6, and limiting plates 15 are slidably connected to the inner walls of the movable grooves 12. The adjacent sides of the limiting plates 15 on both the front and rear sides... Springs 14 are installed on both sides; the near ends of the springs 14 on the front and rear sides are installed on the inner wall of the moving groove 12, the limiting plate 15 is installed on the outer side of the middle of the insertion rod 13, and the mounting block 11 is installed on the top of the scraper 7. Thus, the spring force of the spring 14 pushes one end of the insertion rod 13 to always be inserted into the slot 17, thereby facilitating the disassembly and assembly of the scraper 7. The far ends of the insertion rods 13 on the front and rear sides pass through the mounting groove 16 and are inserted into the inner wall of the slot 17. The insertion rod 13 passes through the moving groove 12, thereby using the insertion rod 13 to lock the mounting block 11 and the moving plate 6 for subsequent disassembly and assembly operations.

[0032] First, pull the front and rear levers 9 to move them towards each other along the inner wall of the auxiliary groove 10, thereby causing the front and rear insert rods 13 to move towards each other. During this process, the front and rear limit plates 15 slide towards each other along the inner wall of the moving groove 12, while squeezing the spring 14 to compress it. At this time, one end of the insert rod 13 disengages from the slot 17, thereby releasing the restriction between the mounting block 11 and the mounting groove 16. Then, pull the scraper 7 down to disengage it from the moving plate 6 for maintenance. After that, reset the scraper 7 and drive the mounting block 11 into the inner wall of the mounting groove 16. At this time, release the two levers 9, thereby using the elastic force of the spring 14 to push the front and rear limit plates 15 back to their original positions, and drive one end of the insert rod 13 to continue to insert into the inner wall of the slot 17, thereby continuing to lock the mounting block 11 and the moving plate 6 for subsequent disassembly and maintenance.

[0033] The working process of this utility model is as follows:

[0034] When in use, first start the drive motor 2, which drives the reciprocating screw 3 at its output end to rotate synchronously. At this time, since the front slider 8 is screwed to the reciprocating screw 3 and the rear slider 8 is slidably connected to the slide rod 4, the front and rear sliders 8 are driven to slide to the right along the inner wall of the slide groove 5, and the moving plate 6 moves back and forth on the top of the bleaching equipment body 1. Then, the scraper 7 scrapes the floating impurities and debris in the bleaching equipment body 1 to the right and pushes them into the collection frame. Thus, cleaning can be carried out without the need for manual operation by the operator. This not only makes it convenient for the operator to use, but also improves the use effect of the bleaching equipment body 1.

[0035] When the scraper 7 needs to be disassembled, first pull the front and rear levers 9 to move them towards each other along the inner wall of the auxiliary groove 10, thereby driving the front and rear insert rods 13 to move towards each other. During this process, the front and rear limit plates 15 slide towards each other along the inner wall of the moving groove 12, while squeezing the spring 14 to compress it. At this time, one end of the insert rod 13 disengages from the slot 17, thereby releasing the restriction between the mounting block 11 and the mounting groove 16. Then, the scraper 7 can be pulled down to disengage it from the moving plate 6 for maintenance of the scraper 7. After that, the scraper 7 is reset and the mounting block 11 is inserted into the inner wall of the mounting groove 16. At this time, release the two levers 9, thereby using the elastic force of the spring 14 to push the front and rear limit plates 15 to reset, and drive one end of the insert rod 13 to continue to insert into the inner wall of the slot 17, thereby continuing to lock the mounting block 11 and the moving plate 6 for subsequent disassembly and maintenance.

[0036] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0037] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0038] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 disc bleaching apparatus for papermaking, characterized in that The bleaching equipment includes a main body (1), and the top front and rear sides of the bleaching equipment (1) are provided with sliding grooves (5). A slider (8) is slidably connected to the left side of the inner wall of the sliding groove (5). A movable plate (6) is installed on the top of the slider (8) on the front and rear sides, and a scraper (7) is installed on the bottom of the movable plate (6).

2. The pulp pan bleaching equipment for papermaking according to claim 1, characterized in that, A drive motor (2) is installed on the upper left side of the bleaching equipment body (1), a reciprocating screw (3) is installed at the output end of the drive motor (2), and a slide rod (4) is installed on the inner wall of the slide groove (5) on the rear side.

3. The pulp pan bleaching equipment for papermaking according to claim 2, characterized in that, The right end of the reciprocating screw (3) passes through the front slide groove (5) and is rotatably connected to the top right side of the bleaching equipment body (1).

4. The pulp pan bleaching equipment for papermaking according to claim 2, characterized in that, The front slider (8) is threadedly connected to the left outer side of the reciprocating screw (3), and the rear slider (8) is slidably connected to the outer side of the slide rod (4).

5. The pulp bleaching equipment for papermaking according to claim 1, characterized in that, The movable plate (6) has mounting grooves (16) on both the front and rear sides of its bottom. Mounting blocks (11) are inserted into the inner walls of the mounting grooves (16). A slot (17) is provided in the middle of the mounting blocks (11). Two auxiliary grooves (10) are provided in the middle of the movable plate (6). A lever (9) is slidably connected to the inner wall of the auxiliary groove (10). A plug rod (13) is installed on the opposite side of the lever (9) on both the front and rear sides. The movable plate (6) has moving grooves (12) on both the front and rear sides of its interior. A limiting plate (15) is slidably connected to the inner wall of the moving groove (12). A spring (14) is installed on the adjacent side of the limiting plate (15) on both the front and rear sides.

6. The pulp pan bleaching equipment for papermaking according to claim 5, characterized in that, The springs (14) on both the front and rear sides are installed on the inner wall of the moving groove (12), the limiting plate (15) is installed on the outer side of the middle part of the insert rod (13), and the mounting block (11) is installed on the top of the scraper (7).

7. The pulp pan bleaching equipment for papermaking according to claim 5, characterized in that, The two ends of the insert rods (13) on the front and rear sides pass through the mounting groove (16) and are inserted into the inner wall of the slot (17). The insert rods (13) pass through the moving groove (12).

8. The pulp pan bleaching equipment for papermaking according to claim 1, characterized in that, The bottom front and rear sides of the movable plate (6) are attached to the top of the bleaching equipment body (1), and the scraper (7) is slidably connected to the upper side of the inner wall of the bleaching equipment body (1).