A waste fiber recovery device for a hydropulper

By using a motor-driven filter cylinder rotation and vibration design, combined with multiple feeding tubes, the problem of easy clogging of the filter screen in hydraulic pulpers is solved, achieving efficient solid-liquid separation and fiber recovery.

CN224524165UActive Publication Date: 2026-07-21WEIYUAN COUNTY HENGFENG PAPER CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WEIYUAN COUNTY HENGFENG PAPER CO LTD
Filing Date
2025-06-26
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The first filter screen of existing hydraulic pulpers is easily clogged by pulp fibers, resulting in reduced filtration efficiency and affecting the recycling efficiency of waste fibers.

Method used

The system employs a recycling component, which uses a motor to drive the filter cylinder to rotate and, in conjunction with the collision of the first and second protrusions, triggers the reciprocating motion of the slide bar and spring, causing the filter cylinder to vibrate and preventing localized fiber accumulation. The feeding component rotates synchronously with the rotating filter cylinder through multiple feeding pipes, preventing blockage at a single inlet.

Benefits of technology

It significantly improves solid-liquid separation efficiency, ensures continuous and efficient fiber recycling, and avoids the problem of easy clogging of traditional filter screens.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of hydraulic pulper, and disclose a kind of waste fiber recovery device for hydraulic pulper, including recycling box;Four support legs are fixedly connected in the bottom surface of recycling box;Respectively fixedly connected in the shock pad of four support legs bottom surface;And the storage tank located above recycling box, recycling box inside is provided with recovery subassembly;Storage tank surface is provided with feeding assembly, recovery subassembly includes the filter cartridge in recycling box interior, the filter cartridge top end surface is extended to recycling box above by the penetration recycling box top surface.The recycling subassembly is rotated continuously by motor drive filter cartridge, so that paper pulp is evenly dispersed in the filter hole of cylinder wall under the action of centrifugal force, avoid local accumulation of fiber, while the first bump on the surface of filter cartridge periodically collides with the second bump, triggers the reciprocating motion of slide bar and spring, so that filter cartridge produces vibration, effectively shakes off the fiber adhered in filter hole, significantly solve the problem that traditional filter screen is easy to block.
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Description

Technical Field

[0001] This utility model relates to the field of hydraulic pulping technology, specifically to a waste fiber recycling device for hydraulic pulping. Background Technology

[0002] Hydraulic pulpers are key equipment in the pulp and paper industry, mainly used for breaking down raw materials such as waste paper, pulp boards, and damaged paper. Through hydraulic and mechanical action, they break down the raw materials into uniform fiber pulp, ensuring fiber length and strength, thereby guaranteeing the delamination effect of the paper stock.

[0003] According to Chinese patent publication CN218553271U, a waste fiber recovery device for a hydrapulper includes a frame and a solid-liquid separation pipe. A threaded shaft extending to the left side of the solid-liquid separation pipe is rotatably mounted on the right side of its inner cavity. A discharge port is located at the bottom of the solid-liquid separation pipe, and a liquid outlet is located to the right of the discharge port. A liquid storage tank communicating with the liquid outlet is fixedly mounted on the top of the frame. A first filter screen is fixedly mounted inside the liquid outlet. A water pump is fixedly mounted on the top of the frame. A filter box communicating with the right side of the feed pipe is fixedly mounted on the top of the solid-liquid separation pipe. A second filter screen is fixedly mounted inside the filter box. A pneumatic telescopic rod is fixedly mounted on the right side of the filter box. This waste fiber recovery device for a hydrapulper has advantages such as secondary filtration of pulp, improving the recovery rate of pulp fibers. However, existing devices have the following problems: when filtering the pulped pulp, pulp fibers easily clog the first filter screen, reducing its filtration efficiency and affecting the recycling efficiency of waste fibers. Therefore, a waste fiber recycling device for hydraulic pulpers is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a waste fiber recycling device for a hydraulic pulper to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a waste fiber recycling device for a hydraulic pulper, comprising a recycling bin; Four support legs are fixedly connected to the bottom of the recycling bin; Shock-absorbing pads are fixedly connected to the bottom of the four support legs respectively; And a storage tank located above the recycling bin, the recycling bin being equipped with recycling components; The surface of the storage tank is equipped with a feeding assembly.

[0006] Preferably, the recycling assembly includes a filter cartridge located inside the recycling bin. The top surface of the filter cartridge extends through the top surface of the recycling bin to the top of the recycling bin. The surface of the filter cartridge is rotatably connected to the inner wall of the recycling bin via a bearing seat. Multiple adding pipes are provided above the filter cartridge. The bottom surface of each adding pipe is fixedly extended through the top surface of the filter cartridge to the inside of the filter cartridge. A discharge pipe is provided inside the filter cartridge. The bottom surface of the discharge pipe is fixedly extended through the bottom surface of the filter cartridge to the bottom of the filter cartridge. A drain pipe is provided on the left side of the recycling bin. The right end of the drain pipe is fixedly extended through the left side of the recycling bin to the inside of the recycling bin. A first valve is provided inside both the discharge pipe and the drain pipe. A discharge trough is provided through the bottom surface of the recycling bin. A baffle is hinged to the bottom surface of the recycling bin. A motor is fixedly connected to the bottom surface of the recycling bin. The top surface of the motor output rod extends through the bottom surface of the recycling bin to the inside of the recycling bin. The top surface of the motor output rod is fixedly connected to the bottom surface of the filter cartridge.

[0007] Preferably, a first protrusion is fixedly connected to the surface of the filter cartridge, a slide cylinder is fixedly connected to the inner side of the recycling bin, a slide rod, a slide plate, and a spring are provided inside the slide cylinder, the right end face of the slide rod is fixedly connected to the left side face of the slide plate, the left end face of the slide rod slides through the inner left side face of the slide cylinder and extends to the left side of the slide cylinder, a connecting plate is fixedly connected to the left end face of the slide rod, a second protrusion is fixedly connected to the left side face of the connecting plate, the spring is sleeved on the surface of the slide rod, and the two ends of the spring are fixedly connected to the inner left side face of the slide cylinder and the left side face of the slide plate, respectively.

[0008] Preferably, the multiple adding tubes are evenly distributed, and the top surface of the adding tubes is flush with the top surface of the recycling bin, so that the crushed pulp can be added into the filter cylinder from different positions.

[0009] Preferably, the discharge pipe is located directly above the discharge trough, and a through groove is provided on the front of the recycling box. An observation window is fixedly connected inside the through groove. The observation window can be used to observe the situation in the recycling box and to determine whether the discharge pipe has moved directly above the discharge trough.

[0010] Preferably, the first protrusion and the second protrusion are adapted to each other, and the first protrusion and the second protrusion are pressed together.

[0011] Preferably, the filter cylinder has filter holes that extend through its sides and bottom to facilitate solid-liquid separation of the crushed pulp.

[0012] Preferably, the feeding assembly includes a support frame fixedly connected to the bottom surface of the storage tank, the bottom surface of the support frame being fixedly connected to the top surface of the recycling bin, a feeding pipe being provided above the storage tank, the bottom end of the feeding pipe being fixedly extended through the top surface of the storage tank to the inside of the storage tank, a discharge pipe being provided inside the support frame, the top end of the discharge pipe being fixedly extended through the inner top surface of the support frame and the bottom surface of the storage tank to the inside of the storage tank, a second valve being provided inside the discharge pipe, and the diameter of the discharge pipe being smaller than the diameter of the addition pipe, so as to facilitate the discharge of the crushed pulp in the storage tank from the discharge pipe into the addition pipe.

[0013] Preferably, a circular plate is provided on the inner side of the support frame, and the bottom end face of the discharge pipe is fixedly extended through the top surface of the circular plate to the bottom of the circular plate. The bottom surface of the circular plate and the bottom end face of the discharge pipe are slidably connected to the addition pipe. The top surface of the discharge pipe is flush with the bottom surface of the circular plate. The circular plate can block the addition pipe, thereby preventing the pulp after crushing from overflowing from the addition pipe.

[0014] Preferably, a fixing plate is provided between the circular plate and the support frame, and the two ends of the fixing plate are fixedly connected to the inner side of the support frame and the side of the circular plate, respectively. The fixing plate facilitates the connection between the circular plate and the support frame.

[0015] Compared with the prior art, the beneficial effects of this utility model are: This waste fiber recovery device for hydraulic pulpers uses a motor to drive the filter cylinder to rotate continuously through the recovery component. This causes the pulp to be evenly dispersed in the filter holes of the cylinder wall under centrifugal force, avoiding local fiber accumulation. At the same time, the first protrusion on the surface of the filter cylinder periodically collides with the second protrusion, triggering the reciprocating motion of the slide bar and spring, which causes the filter cylinder to vibrate and effectively shake off the fibers attached to the filter holes. This significantly solves the problem of easy clogging of traditional filter screens and ensures solid-liquid separation efficiency. This waste fiber recycling device for a hydraulic pulper uses a feeding assembly to feed pulp into the filter cylinder through multiple evenly distributed addition pipes that rotate synchronously with the rotating filter cylinder. The discharge pipe adds pulp into the filter cylinder from addition pipes at different positions, avoiding the risk of blockage at a single inlet. Attached Figure Description

[0016] Figure 1 This is a front sectional perspective view of the present invention; Figure 2 This is a perspective view of the overall main view of this utility model; Figure 3 This is a left-side perspective view of the entire utility model; Figure 4 This is a perspective view of the filter cartridge of this utility model; Figure 5 Add a front perspective view of the tube to this utility model; Figure 6 This utility model Figure 1Enlarged 3D view of area A in the middle.

[0017] In the diagram: 1. Recycling bin; 2. Support leg; 3. Shock-absorbing pad; 4. Observation window; 5. Storage tank; 60. Recycling assembly; 601. Filter cylinder; 602. Motor; 603. Discharge pipe; 604. Addition pipe; 605. Drain pipe; 606. Baffle; 607. First protrusion; 608. Second protrusion; 609. Connecting plate; 6010. Slide rod; 6011. Slide cylinder; 6012. Slide plate; 6013. Spring; 61. Feeding assembly; 611. Support frame; 612. Feeding pipe; 613. Discharge pipe; 614. Circular plate; 615. Fixing plate. Detailed Implementation

[0018] 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.

[0019] Example 1: Please refer to Figure 1 - Figure 6 This utility model provides a technical solution: a waste fiber recycling device for a hydraulic pulper, including a recycling box 1; Four support legs 2 are fixedly connected to the bottom of the recycling bin 1; The shock-absorbing pads 3 are fixedly connected to the bottom of the four support legs 2 respectively. The shock-absorbing pads 3 at the bottom of the support legs 2 absorb the vibration of the equipment operation, ensure the smooth rotation of the filter cartridge, and extend its service life. And a storage tank 5 located above the recycling bin 1, the recycling bin 1 is equipped with a recycling component 60; The surface of the storage tank 5 is provided with a feeding component 61.

[0020] The recycling assembly 60 includes a filter cylinder 601 located inside the recycling bin 1. The top surface of the filter cylinder 601 extends through the top surface of the recycling bin 1 and reaches above the recycling bin 1. The surface of the filter cylinder 601 is rotatably connected to the inner wall of the recycling bin 1 via a bearing seat. Multiple addition tubes 604 are provided above the filter cylinder 601. The bottom end of each addition tube 604 is fixedly extended through the top surface of the filter cylinder 601 and into the filter cylinder 601. A discharge pipe 603 is provided inside the filter cylinder 601. The bottom end of the discharge pipe 603 is fixedly extended through the bottom surface of the filter cylinder 601 and reaches below the filter cylinder 601. A drain pipe 605 is provided on the left side of the recycling bin 1. The right end of the drain pipe 605 is fixedly... The fixed end extends from the left side of the recycling box 1 into the interior of the recycling box 1. The discharge pipe 603 and the liquid discharge pipe 605 are both equipped with first valves. The bottom surface of the recycling box 1 is provided with a discharge trough. A baffle 606 is hinged to the bottom surface of the recycling box 1. A motor 602 is fixedly connected to the bottom surface of the recycling box 1. The top surface of the output rod of the motor 602 extends through the bottom surface of the recycling box 1 into the interior of the recycling box 1. The top surface of the output rod of the motor 602 is fixedly connected to the bottom surface of the filter cylinder 601. After the liquid is separated by the filter holes, it is discharged through the liquid discharge pipe 605. The fiber falls into the discharge trough at the bottom of the recycling box through the discharge pipe 603 and is collected centrally by the hinged baffle 606 to achieve continuous operation.

[0021] A first protrusion 607 is fixedly connected to the surface of the filter cartridge 601. A slide cylinder 6011 is fixedly connected to the inner side of the recycling bin 1. A slide rod 6010, a sliding plate 6012, and a spring 6013 are provided inside the slide cylinder 6011. The right end face of the slide rod 6010 is fixedly connected to the left side face of the sliding plate 6012. The left end face of the slide rod 6010 slides through the inner left side face of the slide cylinder 6011 and extends to the left side of the slide cylinder 6011. A connecting plate 609 is fixedly connected to the left end face of the slide rod 6010. A second protrusion 608 is fixedly connected to the left side face of the connecting plate 609. The spring 6013 is sleeved on the surface of the slide rod 6010. The two ends of 013 are fixedly connected to the left side of the inside of the slide cylinder 6011 and the left side of the slide plate 6012, respectively. Through the recycling component 60, the motor 602 drives the filter cylinder 601 to rotate continuously, so that the pulp is evenly dispersed in the filter holes of the cylinder wall under the action of centrifugal force, avoiding local fiber accumulation. At the same time, the first protrusion 607 on the surface of the filter cylinder 601 periodically collides with the second protrusion 608, triggering the reciprocating motion of the slide rod 6010 and the spring 6013, so that the filter cylinder 601 vibrates, effectively shaking off the fibers attached to the filter holes, significantly solving the problem of easy clogging of traditional filter screens, and ensuring solid-liquid separation efficiency.

[0022] Multiple addition tubes 604 are evenly distributed, with the top surface of the addition tubes 604 flush with the top surface of the recycling bin 1.

[0023] The discharge pipe 603 is located directly above the discharge trough. The front of the recycling box 1 has a through groove, and an observation window 4 is fixedly connected inside the through groove. The observation window 4 on the front of the recycling box 1 facilitates real-time monitoring of the internal working conditions (such as the position of the discharge pipe and the fiber accumulation status), reducing the difficulty of manual intervention.

[0024] The first protrusion 607 and the second protrusion 608 are adapted to each other, and the first protrusion 607 and the second protrusion 608 are pressed together.

[0025] The filter cartridge 601 has filter holes that are opened through the sides and bottom.

[0026] Example 2: Based on Example 1, a preferred embodiment of the waste fiber recycling device for a hydraulic pulper provided by this utility model is as follows: Figure 1 - Figure 3 and Figure 5 As shown: The feeding assembly 61 includes a support frame 611 fixedly connected to the bottom surface of the storage tank 5. The bottom surface of the support frame 611 is fixedly connected to the top surface of the recycling bin 1. A feeding pipe 612 is provided above the storage tank 5. The bottom end of the feeding pipe 612 is fixedly connected through the top surface of the storage tank 5 and extends into the interior of the storage tank 5. A discharge pipe 613 is provided inside the support frame 611. The top end of the discharge pipe 613 is fixedly connected through the inner top surface of the support frame 611 and the bottom surface of the storage tank 5 and extends into the interior of the storage tank 5. A second valve is provided inside the discharge pipe 613. The diameter of the discharge pipe 613 is smaller than the diameter of the addition pipe 604. Through the feeding assembly 61, multiple evenly distributed addition pipes 604 rotate synchronously with the rotating filter cylinder 601. The discharge pipe 613 adds pulp from the addition pipes 604 at different positions into the filter cylinder 601, avoiding the risk of blockage at a single inlet.

[0027] A circular plate 614 is provided on the inner side of the support frame 611. The bottom end of the discharge pipe 613 is fixedly extended through the top surface of the circular plate 614 to the bottom of the circular plate 614. The bottom surface of the circular plate 614 and the bottom end of the discharge pipe 613 are slidably connected to the addition pipe 604. The top surface of the discharge pipe 613 is flush with the bottom surface of the circular plate 614. The circular plate 614 seals the addition pipe 604 to prevent overflow.

[0028] A fixing plate 615 is provided between the circular plate 614 and the support frame 611. The two ends of the fixing plate 615 are fixedly connected to the inner side of the support frame 611 and the side of the circular plate 614, respectively.

[0029] In use, the pulp pulverized by the hydrapulper is added to the storage tank 5 through the feed pipe 612. The second valve is opened, and the pulverized pulp in the storage tank 5 is discharged into the addition pipe 604 through the discharge pipe 613. The motor 602 is turned on, and the output rod of the motor 602 drives the filter cylinder 601 to rotate. When the filter cylinder 601 rotates, it drives the addition pipe 604 and the first protrusion 607 to rotate, so that the discharge pipe 613 sends the pulverized pulp into the filter cylinder 601 from different addition pipes 604. When the filter cylinder 601 rotates, it performs solid-liquid separation on the pulverized pulp. When the first protrusion 607 and the second protrusion 608 are pressed into contact, the connecting plate 609 drives the slide rod 6010 to slide the filter cylinder 601. Sliding in 011 causes the slide plate 6012 to slide in the slide cylinder 6011 and pull the spring 6013. When the first protrusion 607 and the second protrusion 608 are no longer in contact, the force of the spring 6013 drives the slide plate 6012 to move, causing the connecting plate 609 to drive the second protrusion 608 to approach the filter cylinder 601 and strike the outer wall of the filter cylinder 601, thereby causing the filter cylinder 601 to vibrate, which in turn shakes off the pulp fibers attached to the filter holes of the filter cylinder 601. The separated water is discharged through the drain pipe 605. After separation, the pulp fibers are discharged through the discharge pipe 603. The baffle 606 is opened to discharge the pulp fibers from the discharge trough, realizing the recycling of waste fibers.

[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 the 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 waste fiber recycling device for a hydraulic pulper, comprising a recycling bin (1); Four support legs (2) are fixedly connected to the bottom of the recycling bin (1); Shock-absorbing pads (3) are fixedly connected to the bottom of the four support legs (2); and the storage tank (5) located above the recycling bin (1), characterized in that: The recycling bin (1) is equipped with a recycling component (60). The recycling assembly (60) includes a filter cylinder (601) located inside the recycling bin (1). The top surface of the filter cylinder (601) extends through the top surface of the recycling bin (1) to the top of the recycling bin (1). The surface of the filter cylinder (601) is rotatably connected to the inner wall of the recycling bin (1) via a bearing seat. A plurality of adding pipes (604) are provided above the filter cylinder (601). The bottom end of the adding pipes (604) is fixedly extended through the top surface of the filter cylinder (601) to the inside of the filter cylinder (601). A discharge pipe (603) is provided inside the filter cylinder (601). The bottom end of the discharge pipe (603) is fixedly inserted through the bottom surface of the filter cylinder (601) and extends to the bottom of the filter cylinder (601). A drain pipe (605) is provided on the left side of the recovery box (1). The right end of the drain pipe (605) is fixedly inserted through the left side of the recovery box (1) and extends to the inside of the recovery box (1). A first valve is provided inside both the discharge pipe (603) and the drain pipe (605). A discharge trough is opened through the bottom surface of the recovery box (1). A baffle (606) is hinged to the bottom surface of the recovery box (1). A motor (602) is fixedly connected. The top surface of the output rod of the motor (602) extends through the bottom surface of the recycling box (1) into the interior of the recycling box (1). The top surface of the output rod of the motor (602) is fixedly connected to the bottom surface of the filter cylinder (601). A first protrusion (607) is fixedly connected to the surface of the filter cylinder (601). A slide cylinder (6011) is fixedly connected to the inner side of the recycling box (1). A slide rod (6010), a slide plate (6012), and a spring (6013) are provided inside the slide cylinder (6011). The slide rod (6010) is on the right side. The end face is fixedly connected to the left side of the slide plate (6012). The left end face of the slide rod (6010) slides through the left side of the slide cylinder (6011) and extends to the left side of the slide cylinder (6011). A connecting plate (609) is fixedly connected to the left end face of the slide rod (6010). A second protrusion (608) is fixedly connected to the left side of the connecting plate (609). The spring (6013) is sleeved on the surface of the slide rod (6010). The two ends of the spring (6013) are fixedly connected to the left side of the slide cylinder (6011) and the left side of the slide plate (6012) respectively. The surface of the storage tank (5) is provided with a feeding assembly (61).

2. The waste fiber recycling device for a hydraulic pulper according to claim 1, characterized in that: The multiple addition tubes (604) are evenly distributed, and the top surface of the addition tubes (604) is flush with the top surface of the recycling box (1).

3. The waste fiber recycling device for a hydraulic pulper according to claim 1, characterized in that: The discharge pipe (603) is located directly above the discharge trough, and the recycling box (1) has a through groove on its front, with an observation window (4) fixedly connected inside the through groove.

4. A waste fiber recycling device for a hydraulic pulper according to claim 1, characterized in that: The first protrusion (607) and the second protrusion (608) are adapted to each other, and the first protrusion (607) and the second protrusion (608) are pressed together.

5. A waste fiber recycling device for a hydraulic pulper according to claim 1, characterized in that: The filter cylinder (601) has filter holes through its sides and bottom.

6. A waste fiber recycling device for a hydraulic pulper according to claim 1, characterized in that: The feeding assembly (61) includes a support frame (611) fixedly connected to the bottom surface of the storage tank (5). The bottom surface of the support frame (611) is fixedly connected to the top surface of the recycling box (1). A feeding pipe (612) is provided above the storage tank (5). The bottom end of the feeding pipe (612) is fixedly connected through the top surface of the storage tank (5) and extends into the storage tank (5). A discharge pipe (613) is provided inside the support frame (611). The top end of the discharge pipe (613) is fixedly connected through the top surface of the inner side of the support frame (611) and the bottom surface of the storage tank (5) and extends into the storage tank (5). A second valve is provided inside the discharge pipe (613). The diameter of the discharge pipe (613) is smaller than the diameter of the addition pipe (604).

7. A waste fiber recycling device for a hydraulic pulper according to claim 6, characterized in that: A circular plate (614) is provided on the inner side of the support frame (611). The bottom end face of the discharge pipe (613) is fixedly inserted through the top surface of the circular plate (614) and extends to the bottom of the circular plate (614). The bottom surface of the circular plate (614) and the bottom end face of the discharge pipe (613) are slidably connected to the addition pipe (604). The top surface of the discharge pipe (613) is flush with the bottom surface of the circular plate (614).

8. A waste fiber recycling device for a hydraulic pulper according to claim 7, characterized in that: A fixing plate (615) is provided between the circular plate (614) and the support frame (611), and the two ends of the fixing plate (615) are fixedly connected to the inner side of the support frame (611) and the side of the circular plate (614), respectively.