Papermaking pulp deslagging device

By introducing a conical guide plate and a multi-layer screen structure into the paper pulp deslagging device, the problems of screen clogging and cleaning difficulty have been solved, achieving efficient filtration and convenient cleaning.

CN224243560UActive Publication Date: 2026-05-15GUANGFENG COUNTY LULIN PAPER CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGFENG COUNTY LULIN PAPER CO LTD
Filing Date
2025-06-23
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

In existing paper pulp deslagging devices, the screen pores are easily clogged during the filtration process, and impurities become embedded in the screen holes, resulting in reduced filtration efficiency and increased cleaning difficulty.

Method used

A slag removal device comprising a conical guide plate and a multi-layer screen structure was designed. The conical guide plate guides impurities to the bottom screen, and the device is combined with a lifting electric push rod and a threaded mounting ring to facilitate impurity removal.

Benefits of technology

It effectively avoids screen clogging, maintains filtration efficiency, and reduces the difficulty and workload of cleaning impurities.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a papermaking pulp deslagging device, which relates to the technical field of papermaking pulp deslagging and comprises a filter barrel, a lifting frame component is arranged at the top of the filter barrel, and a movable filter component is arranged on the inner side of the filter barrel. A barrel cover is arranged at the top of the lifting frame part; a lifting filtering part is arranged at the bottom of the inner side of the lifting frame part; by means of the structure, papermaking pulp carrying impurities can be guided into the arc-shaped screen at the bottom, the impurities can be collected in a centralized mode, filtering is conducted through the side screen, blocking can be avoided, the filtering efficiency is guaranteed, the filtering efficiency is improved, and the papermaking pulp filtering device is suitable for popularization and application. And the movable filtering part can be driven to extend out of the barrel body, the movable filtering part can be detached by loosening the threaded mounting ring, impurities can be conveniently cleaned, and the cleaning work difficulty is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of paper pulp deslagging technology, specifically to a paper pulp deslagging device. Background Technology

[0002] Paper pulp, as the basic raw material for papermaking in the paper industry, consists of cellulose fibers, hemicellulose, lignin, and additives. Its quality and characteristics directly affect the performance and quality of the final paper. In paper production, it is mainly used in the manufacture of cultural paper and packaging paper.

[0003] Existing pulp deslagging devices typically require pouring the pulp onto a screen to filter out large particles of impurities during the deslagging process. However, as filtration time increases, a layer of impurities gradually and evenly accumulates on the screen surface. This not only clogs the screen pores, significantly reducing filtration efficiency, but also allows impurities to embed inside the screen openings, further increasing the difficulty of subsequent cleaning. Therefore, we propose a pulp deslagging device to address the aforementioned problems. Utility Model Content

[0004] The purpose of this invention is to provide a pulp deslagging device to solve the problem mentioned in the background art: existing pulp deslagging devices typically require pouring the pulp onto a screen to filter out large particles of impurities during deslagging operations. However, as the filtration time increases, a layer of impurities gradually and evenly accumulates on the screen surface. This not only causes the screen pores to become clogged, significantly reducing filtration efficiency, but also allows impurities to embed inside the screen holes, further increasing the difficulty of subsequent cleaning.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A paper pulp deslagging device includes a filter barrel, a lifting frame component is provided on the top of the filter barrel, a movable filter component is provided on the inner side of the filter barrel, a barrel cover is provided on the top of the lifting frame component, a lifting filter component is provided on the bottom of the inner side of the lifting frame component, a conical guide plate is provided on the top of the inner side of the movable filter component, and a threaded mounting ring is provided on the top of the outer side of the movable filter component.

[0007] The movable filter component includes an arc-shaped screen, with an outer screen vertically fixed to the top of the outer ring of the arc-shaped screen and an inner screen vertically fixed to the top of the inner ring of the arc-shaped screen.

[0008] Furthermore, the filter barrel includes a barrel body, and a discharge pipe is fixedly connected to the bottom of the barrel body.

[0009] Furthermore, the lifting frame component includes a lifting plate, and multiple electric lifting rods are fixedly connected to the lower outer surface of the lifting plate by rotating uniformly around an axis. The bottom of the multiple electric lifting rods is fixedly connected to the outer side of the barrel body.

[0010] Furthermore, the barrel lid includes a lid body, and a feeding pipe is fixedly connected to the center of the upper surface of the lid body. The lid body is fixedly connected to the upper surface of the lifting plate. The lifting and filtering component includes a side screen. Multiple screen electric push rods are fixedly connected to the top of the side screen by rotating uniformly around the axis. The inner diameter of the side screen is larger than the outer diameter of the outer screen. The tops of the multiple screen electric push rods are fixedly connected to the inner side of the lower surface of the lifting plate.

[0011] Furthermore, the inner bottom side of the threaded mounting ring is rotatably connected to the outer side of the outer screen, and the inner top side of the threaded mounting ring is threadedly connected to the outer side of the side screen.

[0012] Furthermore, the bottom of the conical guide plate is fixedly connected to the inner screen, the side projection of the conical guide plate is conical, and the tip of the conical guide plate is set upward.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. By setting a conical guide plate, this utility model can guide the paper pulp carrying impurities into the bottom arc-shaped screen, collect the impurities, and filter them through the side screen, which can avoid clogging and ensure filtration efficiency.

[0015] 2. This utility model uses two lifting electric push rods to drive the lifting plate to rise, which in turn drives the movable filter component at the bottom of the lifting filter component to extend out of the barrel. By loosening the threaded mounting ring, the movable filter component can be removed, making it easier to clean impurities and reducing the difficulty of cleaning. 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 side sectional view of the installation structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the installation structure of the movable filter component of this utility model;

[0019] Figure 4 This is a schematic diagram of the installation structure of the lifting filter component of this utility model;

[0020] Reference numerals in the attached drawings: 1. Filter barrel; 101. Barrel body; 102. Discharge pipe; 2. Lifting frame assembly; 201. Lifting plate; 202. Lifting electric push rod; 3. Movable filter assembly; 301. Arc-shaped screen; 302. Outer screen; 303. Inner screen; 4. Barrel lid; 401. Lid body; 402. Feeding pipe; 5. Lifting filter assembly; 501. Side screen; 502. Screen electric push rod; 6. Conical guide plate; 7. Threaded mounting ring. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-4 This utility model provides a technical solution: a paper pulp deslagging device, including a filter barrel 1, a lifting frame component 2 on the top of the filter barrel 1, a movable filter component 3 on the inner side of the filter barrel 1, a barrel cover 4 on the top of the lifting frame component 2, a lifting filter component 5 on the bottom inner side of the lifting frame component 2, a conical guide plate 6 on the top inner side of the movable filter component 3, and a threaded mounting ring 7 on the top outer side of the movable filter component 3;

[0023] The movable filter component 3 includes an arc-shaped screen 301, an outer screen 302 is vertically fixedly connected to the top of the outer ring of the arc-shaped screen 301, and an inner screen 303 is vertically fixedly connected to the top of the inner ring of the arc-shaped screen 301.

[0024] The filter barrel 1 includes a barrel body 101, and a discharge pipe 102 is fixedly connected to the bottom of the barrel body 101. In this example, by setting the discharge pipe 102, it is convenient to discharge the papermaking pulp from the filter screen.

[0025] The lifting frame component 2 includes a lifting plate 201. Multiple electric lifting rods 202 are fixedly connected to the lower outer surface of the lifting plate 201, rotating uniformly around an axis. The bottoms of the multiple electric lifting rods 202 are fixedly connected to the outer side of the barrel body 101. In this example, by setting multiple electric lifting rods 202, the lifting filter component 5 at the bottom of the lifting plate 201 can be raised, facilitating the removal of the movable filter component 3 and cleaning of impurities.

[0026] The barrel lid 4 includes a lid body 401, with a feeding pipe 402 fixedly connected to the center of the upper surface of the lid body 401. The lid body 401 is fixedly connected to the upper surface of the lifting plate 201. The lifting filter component 5 includes a side screen 501. Multiple screen electric push rods 502 are fixedly connected to the top of the side screen 501 around an axis, and the inner diameter of the side screen 501 is larger than the outer diameter of the outer screen 302. The tops of the multiple screen electric push rods 502 are fixedly connected to the inner side of the lower surface of the lifting plate 201. In this example, by setting multiple screen electric push rods 502, the bottom movable filter component 3 can be raised and lowered, making it easy to remove the movable filter component 3 for cleaning.

[0027] The inner bottom of the threaded mounting ring 7 is rotatably connected to the outer side of the outer screen 302, and the inner top of the threaded mounting ring 7 is threadedly connected to the outer side of the side screen 501. In this example, by setting the threaded mounting ring 7, the movable filter component 3 can be connected to the side screen 302, which facilitates disassembly and assembly and reduces the difficulty of maintenance and cleaning.

[0028] The bottom of the conical guide plate 6 is fixedly connected to the inner screen 303. The side projection of the conical guide plate 6 is conical, and the tip of the conical guide plate 6 is set upward.

[0029] Working principle: Paper pulp is fed into the filter tank 1 through the feed pipe 402. Under the action of gravity, the paper pulp impacts the conical guide plate 6 and flows through the conical guide plate 6 to the bottom arc screen 301. Impurities inside the paper pulp are filtered through the side screen 501, outer screen 302, arc screen 301 and inner screen 303 respectively. The impurities are blocked inside the arc screen 301. The filtered pulp flows into the bottom of the tank 101 and is discharged through the discharge pipe 102. When it is necessary to clean the impurities, multiple screen electric push rods 502 drive the side screen 501 to rise, which in turn drives the movable filter component 3 to rise and approach the tank cover 4. At the same time, multiple lifting electric push rods 202 drive the lifting plate 201 to rise, which in turn drives the movable filter component 3 to extend out of the tank 101. By rotating the threaded mounting ring 7, the movable filter component 3 is loosened from the side screen 501 and taken out through the gap between the multiple lifting electric push rods 202 to clean the accumulated impurities.

[0030] 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 pulp deslagging device, characterized in that: The filter includes a filter barrel (1), a lifting frame component (2) is provided on the top of the filter barrel (1), a movable filter component (3) is provided on the inner side of the filter barrel (1), a barrel cover (4) is provided on the top of the lifting frame component (2), a lifting filter component (5) is provided on the bottom of the inner side of the lifting frame component (2), a conical guide plate (6) is provided on the top of the inner side of the movable filter component (3), and a threaded mounting ring (7) is provided on the top of the outer side of the movable filter component (3). The active filter component (3) includes an arc-shaped screen (301), with an outer screen (302) vertically fixed to the top of the outer ring of the arc-shaped screen (301) and an inner screen (303) vertically fixed to the top of the inner ring of the arc-shaped screen (301).

2. The paper pulp deslagging device according to claim 1, characterized in that: The filter barrel (1) includes a barrel body (101), and the bottom of the barrel body (101) is fixedly connected to a discharge pipe (102).

3. The paper pulp deslagging device according to claim 2, characterized in that: The lifting frame component (2) includes a lifting plate (201). Multiple lifting electric push rods (202) are fixedly connected to the lower outer surface of the lifting plate (201) around the axis in a uniform rotation. The bottom of the multiple lifting electric push rods (202) is fixedly connected to the outer side of the barrel body (101).

4. A pulp deslagging device according to claim 3, characterized in that: The barrel lid (4) includes a lid body (401), and a feeding pipe (402) is fixedly connected to the center of the upper surface of the lid body (401). The lid body (401) is fixedly connected to the upper surface of the lifting plate (201). The lifting filter component (5) includes a side screen (501). Multiple screen electric push rods (502) are fixedly connected to the top of the side screen (501) around the axis in a uniform rotation. The inner diameter of the side screen (501) is larger than the outer diameter of the outer screen (302). The top of the multiple screen electric push rods (502) is fixedly connected to the inner side of the lower surface of the lifting plate (201).

5. A pulp deslagging device according to claim 4, characterized in that: The inner bottom of the threaded mounting ring (7) is rotatably connected to the outer side of the outer screen (302), and the inner top of the threaded mounting ring (7) is threadedly connected to the outer side of the side screen (501).

6. The pulp deslagging device according to claim 1, characterized in that: The bottom of the conical guide plate (6) is fixedly connected to the inner screen (303), the side projection of the conical guide plate (6) is conical, and the tip of the conical guide plate (6) is set upward.