Slurry screening device

Abstract

The slurry screening device comprises a screening barrel, screening plates, a discharging assembly and a swinging mechanism, a feeding port is formed in the top of the screening barrel, a drainage port is formed in the bottom of the screening barrel, the screening plates are arranged in the screening barrel from top to bottom, and screening ports are formed in the two sides of each screening plate. One discharging assembly is connected with one screening opening, the screening barrel is connected with the swinging mechanism, the swinging mechanism comprises a base, vertical plates, a rotating shaft and a swinging driving assembly, the screening barrel is arranged above the base, the two sides of the base are each fixedly connected with one vertical plate, and the vertical plates are rotationally connected with the upper portion of the screening barrel through the rotating shafts; one side of the swing driving assembly is connected with the screening barrel, and the other side of the swing driving assembly is connected with the bottom of the screening barrel; therefore, the slurry can be better screened, the efficiency of the slurry passing through the screen plate is improved, the screening effect is prevented from being reduced, and the screening time is shortened.

Description

Technical Field

[0001] This utility model relates to the field of pulp screening technology, and in particular to a pulp screening device. Background Technology

[0002] Paper, made from plant fibers, is a sheet of paper that can be folded at will for writing. Paper is a medium for writing and printing, and can also be used for other purposes such as packaging and hygiene, including printing paper, carbon paper, toilet paper, and facial tissue. The earliest practical application of paper dates back to ancient Egypt, more than 5,000 years ago.

[0003] Pulp screening is an important step in papermaking. Waste newspapers, books, cardboard boxes, and shredded paper can all be recycled and reused. The pulp produced after crushing these materials can be recycled and reused, thus making full use of waste materials.

[0004] During typical slurry recycling, prolonged operation can clog the screen plate, preventing the slurry from passing through, thus reducing the screening efficiency and extending the screening time. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the aforementioned problems in the prior art, this utility model provides a slurry screening device that can better screen slurries, improve the efficiency of slurry passing through the screen plate, avoid reduced screening effect, and shorten screening time.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0009] A slurry screening device includes a screening barrel, screen plates, a discharge assembly, and a swing mechanism. The top of the screening barrel is provided with a feed inlet, and the bottom of the screening barrel is provided with a drain outlet. Several screen plates are arranged from top to bottom inside the screening barrel, and screening ports are provided on both sides of each screen plate. One discharge assembly is connected to one screening port, and the screening barrel is connected to the swing mechanism.

[0010] The swing mechanism includes a base, upright plates, a rotating shaft, and a swing drive assembly. The screening barrel is disposed above the base. An upright plate is fixedly connected to both sides of the base. The upright plates are rotatably connected to the upper part of the screening barrel through the rotating shaft. One side of the swing drive assembly is connected to the base, and the other side of the swing drive assembly is connected to the bottom of the screening barrel.

[0011] Furthermore, each of the sieve plates is provided with sieve holes, and the diameter of the sieve holes gradually decreases from top to bottom.

[0012] Furthermore, the swing drive assembly includes a first rotating seat, a telescopic drive member, and a second rotating seat. The lower part of the first rotating seat is connected to the base, and the upper part of the second rotating seat is connected to the bottom of the screening barrel. One end of the telescopic drive member is rotatably connected to the upper part of the first rotating seat, and the other end of the telescopic drive member is rotatably connected to the lower part of the second rotating seat.

[0013] Furthermore, one end of each rotating shaft is fixedly connected to the upper part of the screening barrel, the other end of each rotating shaft is rotatably connected to the upper part of the vertical plate, and the lower part of the vertical plate is fixedly connected to the base.

[0014] Furthermore, a reinforcing rib is fixedly connected to the lower part of the upright plate at the connection point with the base.

[0015] Furthermore, the discharge assembly includes a discharge chute and a sealing assembly, wherein the discharge chute is fixedly connected to the screening port, and the sealing assembly is connected to the screening port;

[0016] The enclosure assembly includes a fixed plate, a slide rail, a closing plate, a lifting plate, and a linear drive component. The slide rail is fixedly installed on the outer surface of the screening barrel via the fixed plate. The closing plate is disposed outside the screening opening and is slidably connected to the slide rail. The linear drive component is installed on the fixed plate, and the lifting plate is fixedly connected to the closing plate. The linear drive component is linearly driven connected to the lifting plate.

[0017] Furthermore, a sealing strip is provided on the side of the sealing plate near the screening port.

[0018] Furthermore, it also includes a feed hopper, which is fixedly connected to the feed inlet.

[0019] Furthermore, it also includes a drain pipe, and a drain outlet is provided on both sides of the bottom of the screening barrel, and a drain pipe is fixedly connected to a drain outlet.

[0020] Furthermore, it also includes a controller, which is electrically connected to both the discharge assembly and the oscillating mechanism.

[0021] (III) Beneficial Effects

[0022] The beneficial effects of this utility model are as follows: In the actual papermaking process, when it is necessary to screen the pulp for papermaking, the pulp can be poured into the screening barrel through the feed inlet. Then, the pulp is screened through several screen plates in the screening barrel, and the screened pulp is discharged through the screening port. Excess liquid is discharged through the drain port. When the screen plate becomes blocked, the discharge component can be operated to close the screening port. At the same time, the swing drive component is operated to move the lower part of the screening barrel. Meanwhile, the upper part of the screening barrel rotates on the vertical plate through the rotating shaft, causing the screening barrel to swing back and forth. The pulp in the screening barrel moves back and forth, and the impact force brought by the swing gradually clears the blocked screen plate. Then, the discharge component is opened to continue screening. This can better screen the pulp, improve the efficiency of the pulp passing through the screen plate, avoid reducing the screening effect, and shorten the screening time. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the slurry screening device according to an embodiment of the present invention;

[0024] Figure 2 This is a front view of the overall structure of the slurry screening device according to an embodiment of the present invention;

[0025] Figure 3 This is a side view of the overall structure of the slurry screening device according to an embodiment of the present invention.

[0026] Figure 4 This is a cross-sectional view of the overall structure of the slurry screening device according to an embodiment of the present invention.

[0027] [Explanation of Labels in the Attached Image]

[0028] 1. Feed hopper, 2. Rotary shaft, 3. Screening barrel, 4. Vertical plate, 5. Reinforcing rib, 6. Base, 7. Telescopic drive component, 8. First rotating seat, 9. Drainage pipe, 10. Discharge chute, 11. Enclosed plate, 12. Lifting plate, 13. Slide rail, 14. Fixed plate, 15. Linear drive component, 16. Screen plate, 17. Second rotating seat. Detailed Implementation

[0029] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Please refer to Figures 1 to 4As shown, a slurry screening device of the present invention includes a screening barrel 3, a screen plate 16, a discharge component and a swing mechanism. The top of the screening barrel 3 is provided with a feed inlet and the bottom of the screening barrel 3 is provided with a drain outlet. A plurality of screen plates 16 are arranged from top to bottom inside the screening barrel 3. Screening ports are provided on both sides of the screen plate 16. One discharge component is connected to one of the screening ports. The screening barrel 3 is connected to the swing mechanism.

[0031] The swing mechanism includes a base 6, a vertical plate 4, a rotating shaft 2, and a swing drive assembly. The screening barrel 3 is disposed above the base 6. A vertical plate 4 is fixedly connected to both sides of the base 6. The vertical plates 4 are rotatably connected to the upper part of the screening barrel 3 through the rotating shaft 2. One side of the swing drive assembly is connected to the base, and the other side of the swing drive assembly is connected to the bottom of the screening barrel 3.

[0032] The working principle of this utility model is as follows: In the actual papermaking process, when it is necessary to screen the pulp for papermaking, the pulp can be poured into the screening barrel 3 through the feed port. Then, the pulp is screened by several screen plates 16 in the screening barrel 3, and the screened pulp is discharged through the screening port. Excess liquid is discharged through the drain port. When the screen plate 16 is blocked, the discharge component can be operated to close the screening port. At the same time, the swing drive component is operated to move the lower part of the screening barrel 3. Meanwhile, the upper part of the screening barrel 3 rotates on the vertical plate 4 through the rotating shaft 2, causing the screening barrel 3 to swing back and forth. The pulp in the screening barrel 3 moves back and forth. The impact force brought by the swing gradually clears the blocked screen plate 16. Then, the discharge component is opened to continue screening.

[0033] Furthermore, each of the sieve plates 16 is provided with sieve holes, and the diameter of the sieve holes gradually decreases from top to bottom.

[0034] As can be seen from the above description, it is beneficial to better screen the slurry step by step.

[0035] Furthermore, the swing drive assembly includes a first rotating seat 8, a telescopic drive member 7, and a second rotating seat 17. The lower part of the first rotating seat 8 is connected to the base 6, and the upper part of the second rotating seat 17 is connected to the bottom of the screening barrel 3. One end of the telescopic drive member 7 is rotatably connected to the upper part of the first rotating seat 8, and the other end of the telescopic drive member 7 is rotatably connected to the lower part of the second rotating seat 17.

[0036] As can be seen from the above description, when it is necessary to make the screening barrel 3 swing, the telescopic drive 7 can be operated to extend the telescopic drive 7 and offset the lower part of the screening barrel 3. Then, the telescopic drive 7 is controlled to retract, which simultaneously drives the lower part of the screening barrel 3 to swing back. The telescopic drive 7 is operated repeatedly to make the screening barrel 3 swing.

[0037] Furthermore, one end of each rotating shaft 2 is fixedly connected to the upper part of the screening barrel 3, the other end of each rotating shaft 2 is rotatably connected to the upper part of the vertical plate 4, and the lower part of the vertical plate 4 is fixedly connected to the base 6.

[0038] As can be seen from the above description, it is beneficial for the upper part of the screening barrel 3 to rotate better with the vertical plate 4 via the rotating shaft 2.

[0039] Furthermore, a reinforcing rib 5 is fixedly connected to the lower part of the upright plate 4 at the connection point with the base 6.

[0040] As can be seen from the above description, it is beneficial to improve the compressive strength of the vertical plate 4.

[0041] Furthermore, the discharge assembly includes a discharge chute 10 and a sealing assembly, wherein the discharge chute 10 is fixedly connected to the screening port, and the sealing assembly is connected to the screening port;

[0042] The enclosure assembly includes a fixed plate 14, a slide rail 13, a closing plate 11, a lifting plate 12, and a linear drive component 15. The slide rail 13 is fixedly installed on the outer surface of the screening barrel 3 via the fixed plate 14. The closing plate 11 is disposed outside the screening port and is slidably connected to the slide rail 13. The linear drive component 15 is installed on the fixed plate 14, and the lifting plate 12 is fixedly connected to the closing plate 11. The linear drive component 15 is linearly driven connected to the lifting plate 12.

[0043] As can be seen from the above description, when it is necessary to close the screening port, the linear drive component 15 can be operated, so that the linear drive component 15 drives the closing plate 11 to descend through the lifting plate 12, and at the same time the closing plate 11 slides on the slide rail 13 to close the screening port.

[0044] Furthermore, a sealing strip is provided on the side of the sealing plate 11 near the screening port.

[0045] As can be seen from the above description, it is beneficial to improve the sealing performance of the sealing plate 11.

[0046] Furthermore, it also includes a feed hopper 1, which is fixedly connected to the feed inlet.

[0047] As can be seen from the above description, it is beneficial to better guide the slurry into the screening tank 3.

[0048] Furthermore, it also includes a drain pipe 9, and a drain outlet is provided on both sides of the bottom of the screening barrel 3, and a drain pipe 9 is fixedly connected to a drain outlet.

[0049] As can be seen from the above description, it is beneficial to drain excess liquid through drain pipe 9.

[0050] Furthermore, it also includes a controller, which is electrically connected to both the discharge assembly and the oscillating mechanism.

[0051] As can be seen from the above description, it makes it more convenient for users to control the overall device.

[0052] Example 1

[0053] Please refer to Figures 1 to 4 A slurry screening device includes a screening barrel 3, screen plates 16, a discharge assembly, and a swing mechanism. The top of the screening barrel 3 is provided with a feed inlet, and the bottom of the screening barrel 3 is provided with a drain outlet. Several screen plates 16 are arranged from top to bottom inside the screening barrel 3. Screening ports are provided on both sides of each screen plate 16. One discharge assembly is connected to one of the screening ports. The screening barrel 3 is connected to the swing mechanism.

[0054] There are a total of 3 sieve plates 16, and each sieve plate 16 is welded to the inner surface of the screening barrel 3;

[0055] The swing mechanism includes a base 6, a vertical plate 4, a rotating shaft 2, and a swing drive assembly. The screening barrel 3 is disposed above the base 6. A vertical plate 4 is fixedly connected to both sides of the base 6 and is welded together. The vertical plates 4 are rotatably connected to the upper part of the screening barrel 3 through the rotating shaft 2. One side of the swing drive assembly is connected to the base, and the other side of the swing drive assembly is connected to the bottom of the screening barrel 3.

[0056] Each of the sieve plates 16 is provided with sieve holes, and the diameter of the sieve holes gradually decreases from top to bottom;

[0057] The swing drive assembly includes a first rotating seat 8, a telescopic drive member 7, and a second rotating seat 17. The lower part of the first rotating seat 8 is connected to the base 6 by bolts, and the upper part of the second rotating seat 17 is connected to the bottom of the screening barrel 3 by bolts. One end of the telescopic drive member 7 is rotatably connected to the upper part of the first rotating seat 8, and the other end of the telescopic drive member 7 is rotatably connected to the lower part of the second rotating seat 17.

[0058] The telescopic drive component 7 is a hydraulic cylinder;

[0059] One end of each rotating shaft 2 is fixedly connected to the upper part of the screening barrel 3 by welding, and the other end of each rotating shaft 2 is rotatably connected to the upper part of the vertical plate 4. The lower part of the vertical plate 4 is fixedly connected to the base 6 by welding.

[0060] The lower part of the upright plate 4 is fixedly connected to the base 6 with a reinforcing rib 5, and the connection is made by welding.

[0061] The discharge assembly includes a discharge chute 10 and a sealing assembly. The discharge chute 10 is fixedly connected to the screening port by welding, and the sealing assembly is connected to the screening port.

[0062] The enclosed assembly includes a fixed plate 14, a slide rail 13, a closing plate 11, a lifting plate 12, and a linear drive component 15. The slide rail 13 is fixedly installed on the outer surface of the screening barrel 3 via the fixed plate 14 and is welded. The closing plate 11 is disposed outside the screening port and is slidably connected to the slide rail 13. The linear drive component 15 is bolted to the fixed plate 14. The lifting plate 12 is fixedly connected to the closing plate 11 and is welded. The linear drive component 15 is linearly driven connected to the lifting plate 12.

[0063] The linear drive component 15 is an electric cylinder;

[0064] A sealing strip is provided on the side of the sealing plate 11 near the screening port;

[0065] It also includes a feed hopper 1, which is fixedly connected to the feed inlet by welding;

[0066] It also includes a drain pipe 9, and a drain outlet is provided on both sides of the bottom of the screening barrel 3. The drain pipe 9 is fixedly connected to the drain outlet by welding.

[0067] It also includes a controller, which is electrically connected to both the discharge assembly and the oscillating mechanism;

[0068] The controller is model DATA-7311, and it is electrically connected to the telescopic drive 7 and the linear drive 15 respectively.

[0069] The above describes the basic principles, main features, and advantages of this utility model. All standard parts used in this utility model can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all adopt conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and the circuit connections adopt conventional connection methods in the prior art, which will not be detailed here.

[0070] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A slurry screening device, characterized in that: The device includes a screening barrel, screening plates, a discharge assembly, and a swing mechanism. The top of the screening barrel is provided with a feed inlet, and the bottom of the screening barrel is provided with a drain outlet. Several screening plates are arranged from top to bottom inside the screening barrel. Screening ports are provided on both sides of each screening plate. One discharge assembly is connected to one screening port. The screening barrel is connected to the swing mechanism. The swing mechanism includes a base, upright plates, a rotating shaft, and a swing drive assembly. The screening barrel is disposed above the base. An upright plate is fixedly connected to both sides of the base. The upright plates are rotatably connected to the upper part of the screening barrel through the rotating shaft. One side of the swing drive assembly is connected to the base, and the other side of the swing drive assembly is connected to the bottom of the screening barrel.

2. The slurry screening device as described in claim 1, characterized in that: Each sieve plate is provided with sieve holes, and the diameter of the sieve holes gradually decreases from top to bottom.

3. The slurry screening device as described in claim 1, characterized in that: The swing drive assembly includes a first rotating seat, a telescopic drive member, and a second rotating seat. The lower part of the first rotating seat is connected to the base, and the upper part of the second rotating seat is connected to the bottom of the screening barrel. One end of the telescopic drive member is rotatably connected to the upper part of the first rotating seat, and the other end of the telescopic drive member is rotatably connected to the lower part of the second rotating seat.

4. The slurry screening device as described in claim 1, characterized in that: One end of each rotating shaft is fixedly connected to the upper part of the screening barrel, and the other end of each rotating shaft is rotatably connected to the upper part of the vertical plate. The lower part of the vertical plate is fixedly connected to the base.

5. The slurry screening device as described in claim 4, characterized in that: The lower part of the upright plate is fixedly connected to the base with a reinforcing rib.

6. The slurry screening device as described in claim 1, characterized in that: The discharge assembly includes a discharge chute and a sealing assembly. The discharge chute is fixedly connected to the screening port, and the sealing assembly is connected to the screening port. The enclosure assembly includes a fixed plate, a slide rail, a closing plate, a lifting plate, and a linear drive component. The slide rail is fixedly installed on the outer surface of the screening barrel via the fixed plate. The closing plate is disposed outside the screening opening and is slidably connected to the slide rail. The linear drive component is installed on the fixed plate, and the lifting plate is fixedly connected to the closing plate. The linear drive component is linearly driven connected to the lifting plate.

7. The slurry screening device as described in claim 6, characterized in that: A sealing strip is provided on the side of the sealing plate near the screening port.

8. The slurry screening device as described in claim 1, characterized in that: It also includes a feed hopper, which is fixedly connected to the feed inlet.

9. The slurry screening device as described in claim 8, characterized in that: It also includes a drain pipe, and a drain outlet is provided on both sides of the bottom of the screening barrel, and a drain pipe is fixedly connected to a drain outlet.

10. The slurry screening device as described in claim 1, characterized in that: It also includes a controller, which is electrically connected to the discharge assembly and the swing mechanism, respectively.

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