A paper pulp filtering device for insulating paper production

By designing control and driven components, and utilizing a motor-driven movable rod to strike the filter screen, the problem of the filter cake layer hindering water penetration was solved, enabling rapid filtration and efficient separation of pulp in the production of insulating paper.

CN224313955UActive Publication Date: 2026-06-02NANTONG RIZHI ELECTRIC STUFF CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANTONG RIZHI ELECTRIC STUFF CO LTD
Filing Date
2025-10-13
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing pulp filtration devices rely on natural gravity or conventional negative pressure filtration, resulting in slow filtration speeds. Especially in the later stages of filtration, after the filter cake layer forms, the resistance to water penetration increases significantly, affecting filtration efficiency.

Method used

Using control and driven components, the circular plate is driven by a motor to fold the movable rod, which pushes the connecting rod to move longitudinally, applying pressure to break the filter cake layer. At the same time, the filter screen is struck to accelerate filtration and improve filtration efficiency.

Benefits of technology

It achieves rapid moisture separation, preserves fibers, avoids the impact of increased resistance on filtration efficiency, and improves the filtration speed and efficiency of insulating paper production.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of insulating paper production technology and discloses a pulp filtration device for insulating paper production, including a support frame, a recycling frame placed on the inner wall of the support frame, a filter frame fixedly installed on the inner wall of the support frame, a filter screen disposed in the filter frame, and a control component disposed in the support frame. In this pulp filtration device for insulating paper production, when the output shaft of the motor drives the circular plate to rotate on the side of the support frame, the movable rod hinged to the surface of the circular plate can be folded and push the connecting rod to move longitudinally on the surface of the vertical rod. During the movement of the connecting rod, the support frame fixed at the bottom of the connecting rod and the support rod can simultaneously be longitudinally squeezed within the filter frame, applying pressure to the pulp. This can push the free water and some bound water in the pulp to quickly pass through the filter screen, thereby breaking the bottleneck of the filter cake layer that hinders water penetration and avoiding the impact of increased resistance on filtration efficiency.
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Description

Technical Field

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

[0002] Papermaking is an important invention of the ancient Chinese working people. It has two forms: machine-made and handmade. Machine-made papermaking is carried out continuously on a papermaking machine. Pulp suitable for paper quality is diluted with water to a certain concentration, and then initially dewatered on the wire section of the papermaking machine to form a wet sheet. It is then pressed to remove more water and finally dried to form paper.

[0003] Before using pulp, it needs to be filtered to prevent coarse fibers and impurities inside the pulp from interfering with the quality of the paper. Insulating pulp is essentially a suspension system of "fiber solid particles + water". The core goal of filtration is to quickly separate water and retain fibers.

[0004] When existing filtration devices rely solely on natural gravity or conventional negative pressure filtration, the water in the pulp must overcome the resistance between the fibers to slowly penetrate. Especially in the later stages of filtration, when the pulp fibers gradually accumulate to form a "filter cake layer," the resistance to water penetration increases significantly, resulting in a noticeably slower filtration speed. To address this issue, we propose a pulp filtration device for insulating paper production. Utility Model Content

[0005] The purpose of this invention is to provide a pulp filtration device for insulating paper production to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pulp filtration device for insulating paper production, comprising a support, a recycling frame placed on the inner wall of the support, a filter frame fixedly installed on the inner wall of the support, a filter screen disposed within the filter frame, a control component disposed within the support, and a driven component disposed on the side of the filter frame, the control component comprising:

[0007] The support rod is fixedly installed on the inner wall of the support frame. A connecting rod is fixedly installed on the top of the support frame. The connecting rod passes through the support and is slidably connected to the support. The sides of the connecting rod and the sides of the support are provided with extrusion parts to squeeze the pulp, thereby breaking the bottleneck of the filter cake layer that hinders water penetration and avoiding the impact on filtration efficiency due to increased resistance.

[0008] Preferably, the extrusion member includes a crossbar, which is fixedly installed on the side of the connecting rod. When the connecting rod moves longitudinally, the crossbar fixed to the side of the connecting rod can move synchronously.

[0009] Preferably, a vertical rod is fixedly installed on the inner wall of the bracket. The vertical rod passes through the connecting rod and is slidably connected to the connecting rod. The vertical rod can ensure the stability of the connecting rod during longitudinal movement.

[0010] Preferably, the side of the connecting rod is hinged to one end of the movable rod, and the other end of the movable rod is hinged to the side of the circular plate. When the circular plate rotates, the movable rod can be folded to push the connecting rod to move longitudinally.

[0011] Preferably, the side of the circular plate is rotatably connected to the side of the bracket, a motor is fixedly installed on the inner wall of the bracket, the output shaft of the motor is fixedly connected to the circular plate, and the output shaft of the motor can drive the circular plate to perform circumferential motion on the side of the bracket.

[0012] Preferably, the driven component includes a slider, which is fixedly mounted on the top of the slide plate, and a knocking block is fixedly mounted on the side of the slide plate. When the cut surface of the slider is abutted, the slider can drive the slide plate and the knocking block to move synchronously.

[0013] Preferably, a flat rod is fixedly installed on the side of the filter frame. The flat rod passes through the slide plate and is slidably connected to the slide plate. The side of the slide plate is fixedly connected to one end of a spring, and the other end of the spring is fixedly installed on the outer wall of the flat rod. When the slide plate is no longer under force, it can bounce off the surface of the flat rod under the action of the spring.

[0014] Compared with the prior art, this utility model provides a pulp filtration device for insulating paper production, which has the following beneficial effects:

[0015] 1. This pulp filtration device for insulating paper production, equipped with a control component, allows the motor output shaft to drive a circular plate to rotate on the side of the support. The movable rod hinged to the surface of the circular plate can be folded, pushing the connecting rod to move longitudinally on the surface of the vertical rod. During the movement of the connecting rod, the support frame fixed at the bottom of the connecting rod and the support rod can simultaneously exert longitudinal pressure within the filter frame, applying pressure to the pulp. This pushes free water and some bound water in the pulp to quickly pass through the filter screen, thereby breaking the bottleneck of the filter cake layer that hinders water penetration and preventing increased resistance from affecting filtration efficiency.

[0016] 2. The pulp filtration device for insulating paper production is equipped with a driven component. During the longitudinal movement of the connecting rod, the crossbar fixed to the side of the connecting rod will abut against the cross-section of the slider. When the slider is abutted, it can drive the sliding plate to slide on the surface of the crossbar. When the cross-section of the slider is no longer abutted, it can bounce up under the action of the spring and knock the side of the filter frame by the knocking block, thereby causing the filter screen to shake, thus accelerating the pulp filtration efficiency. Attached Figure Description

[0017] Figure 1This is a front view structural diagram of the present invention;

[0018] Figure 2 This is a frontal cross-sectional view of the present invention.

[0019] Figure 3 This is a schematic diagram of the control component structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the driven component structure of this utility model.

[0021] In the diagram: 1. Support frame; 2. Recycling box; 3. Filter box; 4. Filter screen; 5. Control component; 51. Support rod; 52. Support frame; 53. Connecting rod; 54. Extrusion component; 541. Horizontal bar; 542. Vertical bar; 543. Movable bar; 544. Circular plate; 545. Motor; 6. Driven component; 61. Slider; 62. Slide plate; 63. Knocking block; 64. Flat bar; 65. Spring. Detailed Implementation

[0022] like Figures 1-4 As shown, this utility model provides a technical solution: a pulp filtration device for insulating paper production, including a support 1, a recycling frame 2 placed on the inner wall of the support 1, a filter frame 3 fixedly installed on the inner wall of the support 1, a filter screen 4 disposed inside the filter frame 3, a control component 5 disposed inside the support 1, and a driven component 6 disposed on the side of the filter frame 3. The control component 5 includes: a support rod 51, a support frame 52, a connecting rod 53, and an extrusion component 54. The support rod 51 is fixedly installed on the inner wall of the support frame 52, and the connecting rod 53 is fixedly installed on the top of the support frame 52. The connecting rod 53 passes through the support 1 and is slidably connected to the support 1. The sides of rod 53 and support 1 are provided with extrusion members 54 for squeezing the pulp. When the circular plate 544 rotates, the movable rod 543 hinged to the surface of the circular plate 544 can be folded, pushing the connecting rod 53 to move longitudinally along the surface of the vertical rod 542. When the connecting rod 53 moves, the support frame 52 and the support rod 51 fixed at the bottom of the connecting rod 53 can simultaneously squeeze the pulp in the filter frame 3 and apply pressure to the pulp. This can push the free water and some bound water in the pulp to pass through the filter screen 4 quickly, thereby breaking the bottleneck of the filter cake layer that hinders water penetration and avoiding the impact of increased resistance on filtration efficiency.

[0023] The extrusion component 54 includes a crossbar 541, which is fixedly installed on the side of the connecting rod 53. When the connecting rod 53 moves longitudinally, the crossbar 541 fixed to the side of the connecting rod 53 can move synchronously. A vertical rod 542 is fixedly installed on the inner wall of the bracket 1. The vertical rod 542 passes through the connecting rod 53 and is slidably connected to the connecting rod 53. The vertical rod 542 ensures the stability of the connecting rod 53 during longitudinal movement. The side of the connecting rod 53 is hinged to one end of the movable rod 543, and the other end of the movable rod 543 is hinged to the side of the circular plate 544. When the circular plate 544 rotates, the movable rod 543 can fold and push the connecting rod 53 to move longitudinally. The side of the circular plate 544 is rotatably connected to the side of the bracket 1. A motor 545 is fixedly installed on the inner wall of the bracket 1. The output shaft of the motor 545 is fixedly connected to the circular plate 544. The output shaft of the motor 545 can drive the circular plate 544 to perform circumferential motion on the side of the bracket 1. The driven component 6 includes a slider 61, which is fixedly mounted on the top of the slide plate 62. A knocking block 63 is fixedly mounted on the side of the slide plate 62. When the cut surface of the slider 61 is abutted, the slider 61 can drive the slide plate 62 and the knocking block 63 to move synchronously. A flat rod 64 is fixedly mounted on the side of the filter frame 3. The flat rod 64 passes through the slide plate 62 and is slidably connected to the slide plate 62. One end of the slide plate 62 is fixedly connected to the side of the slide plate 62. The other end of the spring 65 is fixedly mounted on the outer wall of the flat rod 64. When the slide plate 62 is no longer under force, it can bounce off the surface of the flat rod 64 under the action of the spring 65.

[0024] In this invention, during use, the pulp produced from insulating paper production is poured into the filter frame 3. The filter screen 4 inside the filter frame 3 filters the pulp. During the filtration process, the motor 545 on the side of the support 1 is started. The output shaft of the motor 545 drives the circular plate 544 to rotate on the side of the support 1. When the circular plate 544 rotates, the movable rod 543 hinged to the surface of the circular plate 544 can be folded, pushing the connecting rod 53 to move longitudinally along the surface of the vertical rod 542. When the connecting rod 53 moves, the support frame 52 and the support rod 51 fixed at the bottom of the connecting rod 53 can simultaneously squeeze the pulp in the filter frame 3, applying pressure to the pulp. This can push the free water and some bound water in the pulp to quickly pass through the filter screen 4, thereby breaking the bottleneck of the filter cake layer that hinders water penetration and avoiding the problem of water penetration due to moisture loss. Increased resistance affects filtration efficiency. Simultaneously, during the longitudinal movement of the connecting rod 53, the crossbar 541 fixed to the side of the connecting rod 53 can move synchronously. During the lateral movement, the crossbar 541 will abut against the cross-section of the slider 61. When the cross-section of the slider 61 is abutted, the sliding plate 62 fixed to the surface of the slider 61 can slide along the surface of the horizontal rod 64. Since the connecting rod 53 is in longitudinal reciprocating motion, when the crossbar 541 no longer abuts against the cross-section of the slider 61, the sliding plate 62 can bounce up under the action of the spring 65. When it bounces up, it will strike the side of the filter frame 3 through the striking block 63. The force generated by the striking can make the filter screen 4 shake, thereby accelerating the filtration efficiency of the pulp. The filtered pulp can fall into the recycling box 2 for centralized processing.

[0025] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A pulp filtration device for insulating paper production, comprising a support frame (1), characterized in that: A recycling frame (2) is placed on the inner wall of the support (1). A filter frame (3) is fixedly installed on the inner wall of the support (1). A filter screen (4) is provided inside the filter frame (3). A control component (5) is provided inside the support (1). A driven component (6) is provided on the side of the filter frame (3). The control component (5) includes a support rod (51). The support rod (51) is fixedly installed on the inner wall of the support frame (52). A connecting rod (53) is fixedly installed on the top of the support frame (52). The connecting rod (53) passes through the support (1) and is slidably connected to the support (1). An extrusion member (54) for squeezing the pulp is provided on the side of the connecting rod (53) and the side of the support (1).

2. The pulp filtration device for insulating paper production according to claim 1, characterized in that: The extrusion member (54) includes a crossbar (541) which is fixedly mounted on the side of the connecting rod (53).

3. The pulp filtration device for insulating paper production according to claim 1, characterized in that: A vertical rod (542) is fixedly installed on the inner wall of the bracket (1). The vertical rod (542) passes through the connecting rod (53) and is slidably connected to the connecting rod (53).

4. The pulp filtration device for insulating paper production according to claim 1, characterized in that: The side of the connecting rod (53) is hinged to one end of the movable rod (543), and the other end of the movable rod (543) is hinged to the side of the circular plate (544).

5. A pulp filtration device for insulating paper production according to claim 4, characterized in that: The side of the circular plate (544) is rotatably connected to the side of the bracket (1), and a motor (545) is fixedly installed on the inner wall of the bracket (1). The output shaft of the motor (545) is fixedly connected to the circular plate (544).

6. The pulp filtration device for insulating paper production according to claim 1, characterized in that: The driven component (6) includes a slider (61) which is fixedly mounted on the top of the slide plate (62), and a knocking block (63) is fixedly mounted on the side of the slide plate (62).

7. A pulp filtration device for insulating paper production according to claim 6, characterized in that: A flat rod (64) is fixedly installed on the side of the filter frame (3). The flat rod (64) passes through the slide plate (62) and is slidably connected to the slide plate (62). The side of the slide plate (62) is fixedly connected to one end of a spring (65). The other end of the spring (65) is fixedly installed on the outer wall of the flat rod (64).