A paper pulp waste residue screening device

Abstract

The utility model provides a paper pulp waste residue screening equipment for papermaking relates to paper pulp screening technical field, including the cylinder, both ends of the cylinder are all seted up round hole, the inner wall of both ends of the cylinder and be located at the round hole all are fixedly connected with fixed ring board, the inside embedding of fixed ring board and bearing rotation connection has the rotary ring board, fixedly connected with the mesh screen cylinder between the rotary ring board, the inside of the cylinder and be located in top recess is equipped with the rotating rod, the surface of fixed ring board all is covered and fixedly connected with the gear ring, the surface of rotating rod and be located gear ring top all cover and fixedly connected with the gear, the gear is engaged connection with gear ring. In the utility model, through the utilization high pressure shower head sprays high pressure liquid, the mechanical scraping effect in combination arc type cleaning plate, can carry out the cleaning to the mesh screen cylinder surface from different angle, with different mode, can more thoroughly remove the blockage in the mesh, guarantee the screening performance of mesh screen cylinder, improve the fiber recovery rate.

Description

Technical Field

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

[0002] Under the general trend of green and low-carbon development in the paper industry, the efficient screening and resource utilization of pulp waste has become a focus of industry attention. The papermaking process generates a large amount of fiber-containing waste. If the fibers can be effectively screened and recycled, raw material costs can be reduced, while solid waste emissions can be decreased.

[0003] Traditional pulp waste screening equipment has many shortcomings: during use, impurities in the pulp easily clog the mesh of the screen cylinder, affecting the screening effect. In addition, traditional cleaning methods are mostly manual, which is inefficient and labor-intensive. The cleaning components of the equipment (such as nozzles and cleaning plates) are mostly fixed. When the components malfunction or need to be replaced, disassembly is difficult, time-consuming and labor-intensive, which seriously affects the maintenance efficiency and continuity of the equipment. Utility Model Content

[0004] The purpose of this invention is to solve the problems in the existing technology where impurities in the pulp easily clog the mesh during the use of the screen cylinder, affecting the screening effect, and the traditional cleaning method is mostly manual cleaning, which is inefficient and labor-intensive. Therefore, this invention proposes a pulp waste screening device for papermaking.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a paper pulp waste screening device, comprising a cylinder, with circular holes at both ends of the cylinder, and fixed ring plates fixedly connected to the inner walls of both ends of the cylinder at the circular holes; rotating ring plates are embedded in and rotatably connected to the fixed ring plates; a screen cylinder is fixedly connected between the rotating ring plates; a rotating rod is provided inside the cylinder and in the top groove; toothed rings are fitted and fixedly connected to the surface of each fixed ring plate; and gears are fitted and fixedly connected to the surface of each rotating rod above the toothed rings. The gear meshes with the gear ring. The inner wall surfaces of the grooves on both sides of the cylinder are provided with sliding grooves. A first insert and a second insert are respectively embedded and slidably connected inside the sliding grooves. A trapezoidal plate is fixedly connected to the surface of the first insert. High-pressure nozzles are installed at equal intervals on the surface of the trapezoidal plate. An electric push rod is embedded and fixedly connected to the surface of the second insert at equal intervals. An arc-shaped cleaning plate is fixedly connected to the output end of the electric push rod. A square hole is symmetrically opened at one end of the cylinder. A mounting plate is embedded inside each square hole. The two mounting plates are fixedly connected to the first insert and the second insert, respectively.

[0006] Preferably, the bottom of the cylinder and near both ends are symmetrically fixedly connected with L-shaped support legs.

[0007] Preferably, both ends of the rotating rod pass through the cylinder and are rotatably connected to its bearings. A drive motor is fixedly connected to one end of the cylinder near the top, and the output end of the drive motor is fixedly connected to one end of the rotating rod.

[0008] Preferably, the bottom of the cylinder is fixed and connected to a discharge funnel.

[0009] Preferably, a limiting rod is slidably connected through the center of both the first and second panels, and one end of the limiting rod is fixedly connected to the inner wall of one end of the slide groove.

[0010] Preferably, a mounting groove is symmetrically provided at one end of the cylinder and on one side of the square hole, and a mounting block is embedded in the interior of each mounting groove, and the mounting block is fixedly connected to the mounting plate.

[0011] Preferably, one of the mounting plates has a liquid inlet pipe that is fixedly connected through and to the surface of the mounting plate, and one end of the liquid inlet pipe is embedded in the first insert plate and communicates with the high-pressure nozzle.

[0012] Preferably, the edges of the protrusions on the surface of the cylinder are all rounded.

[0013] Preferably, the arc shape of the arc-shaped cleaning plate is adapted to the outer wall of the screen cylinder.

[0014] Preferably, the mounting plate is adapted to the square hole.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] 1. In this utility model, by using a high-pressure nozzle to spray high-pressure liquid, combined with the mechanical scraping action of the arc-shaped cleaning plate, the surface of the screen cylinder can be cleaned from different angles and in different ways, which can more thoroughly remove the blockages in the mesh, ensure the screening performance of the screen cylinder, and improve the fiber recovery rate.

[0017] 2. In this utility model, the first and second inserts are detachably connected to the cylinder via the mounting plate. When the high-pressure nozzle or arc-shaped cleaning plate malfunctions and needs to be cleaned or replaced, the relevant inserts can be quickly disassembled, facilitating the repair, cleaning or replacement of the components and improving equipment maintenance efficiency.

[0018] 3. In this utility model, because the cleaning components are easy to maintain, the downtime of the equipment due to the failure of the cleaning components can be reduced, ensuring the continuity of the screening operation and improving the overall production efficiency. Attached Figure Description

[0019] Figure 1 This utility model provides a three-dimensional view of the overall structure of a papermaking pulp waste screening device;

[0020] Figure 2A cross-sectional view of the overall structure of a papermaking pulp waste screening device is provided for this utility model.

[0021] Figure 3 This utility model provides a vertical sectional view of the overall structure of a papermaking pulp waste screening device;

[0022] Figure 4 This utility model provides a three-dimensional view of an arc-shaped cleaning plate structure for a papermaking pulp waste screening device;

[0023] Figure 5 This utility model presents a three-dimensional view of a high-pressure nozzle structure for a papermaking pulp waste screening device.

[0024] Legend: 1. Cylinder; 2. L-shaped support leg; 3. Circular hole; 4. Fixed ring plate; 5. Rotating ring plate; 6. Screen cylinder; 7. Rotating rod; 8. Gear; 9. Gear ring; 10. Drive motor; 11. Discharge funnel; 12. Limiting rod; 13. Slide groove; 14. First insert plate; 15. Second insert plate; 16. Trapezoidal plate; 17. High-pressure nozzle; 18. Electric push rod; 19. Arc-shaped cleaning plate; 20. Square hole; 21. Mounting plate; 22. Mounting groove; 23. Mounting block; 24. Liquid inlet pipe. Detailed Implementation

[0025] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0027] Example 1, as Figure 1-5As shown, this utility model provides a paper pulp waste screening device, including a cylinder 1. Both ends of the cylinder 1 have circular holes 3. Fixed ring plates 4 are fixedly connected to the inner walls of both ends of the cylinder 1 at the circular holes 3. Rotating ring plates 5 are embedded inside the fixed ring plates 4 and rotatably connected to them via bearings. A screen cylinder 6 is fixedly connected between the rotating ring plates 5. A rotating rod 7 is provided inside the cylinder 1, located in the top groove. Gear rings 9 are fitted and fixedly connected to the surfaces of the fixed ring plates 4. Gears 8 are fitted and fixedly connected to the surfaces of the rotating rod 7 above the gear rings 9. The gears 8 mesh with the gear rings 9. The two ends of the cylinder 1... The inner wall surface of the side groove is provided with a sliding groove 13. The first panel 14 and the second panel 15 are respectively embedded and slidably connected inside the sliding groove 13. The surface of the first panel 14 is fixedly connected with a trapezoidal plate 16. The surface of the trapezoidal plate 16 is installed with high-pressure nozzles 17 at equal intervals. The surface of the second panel 15 is embedded and fixedly connected with an electric push rod 18 at equal intervals. The output end of the electric push rod 18 is fixedly connected with an arc-shaped cleaning plate 19. One end of the cylinder 1 is symmetrically provided with square holes 20. The interior of each square hole 20 is embedded with a mounting plate 21. The two mounting plates 21 are respectively fixedly connected to the first panel 14 and the second panel 15.

[0028] The overall effect of Embodiment 1 is as follows: Both ends of the cylinder 1 have circular holes 3. Fixed ring plates 4 are fixedly connected to the inner walls of both ends of the cylinder 1 at the circular holes 3. Rotating ring plates 5 are embedded and rotatably connected inside the fixed ring plates 4. A screen cylinder 6 is fixedly connected between the rotating ring plates 5, allowing the rotating ring plates 5 at both ends of the screen cylinder 6 to rotate within the fixed ring plates 4. A rotating rod 7 is provided inside the cylinder 1, located in the top groove. Gear rings 9 are fitted and fixedly connected to the surface of the fixed ring plates 4. Gears 8 are fitted and fixedly connected to the surface of the rotating rod 7, above the gear rings 9. The gears 8 mesh with the gear rings 9, allowing the rotating rod 7 to rotate, which in turn drives the gears 8, which in turn drives the gear rings 9. Sliding grooves 13 are provided on the inner walls of the grooves on both sides of the cylinder 1. First insert plates 1 are embedded and slidably connected inside the sliding grooves 13. 4. The second insert 15 can be used to embed the first insert 14 and the second insert 15 into the slide groove 13. A trapezoidal plate 16 is fixedly connected to the surface of the first insert 14. High-pressure nozzles 17 are installed at equal intervals on the surface of the trapezoidal plate 16, which can spray and clean the surface of the screen cylinder 6. An electric push rod 18 is embedded and fixedly connected to the surface of the second insert 15 at equal intervals. An arc-shaped cleaning plate 19 is fixedly connected to the output end of the electric push rod 18, which can push the arc-shaped cleaning plate 19 to move. A square hole 20 is symmetrically opened at one end of the cylinder 1. An installation plate 21 is embedded in the square hole 20. The two installation plates 21 are fixedly connected to the first insert 14 and the second insert 15 respectively, which can be used to install and fix the first insert 14 and the second insert 15 by embedding the installation plates 21 into the square hole 20.

[0029] Example 2, as Figure 1-5 As shown, L-shaped support legs 2 are symmetrically fixedly connected to the bottom and near both ends of the cylinder 1; both ends of the rotating rod 7 pass through the cylinder 1 and are rotatably connected to its bearings; a drive motor 10 is fixedly connected to one end of the cylinder 1 near the top, and the output end of the drive motor 10 is fixedly connected to one end of the rotating rod 7; a discharge funnel 11 is fixedly connected to the bottom of the cylinder 1; a limiting rod 12 is slidably connected through the center of the first plate 14 and the second plate 15, and one end of the limiting rod 12 is fixedly connected to the inner wall of one end of the chute 13. A mounting groove 22 is symmetrically provided at one end of the cylinder 1 and on one side of the square hole 20. Mounting blocks 23 are embedded inside the mounting grooves 22 and are fixedly connected to the mounting plate 21. A liquid inlet pipe 24 is fixedly connected through the surface of one of the mounting plates 21. One end of the liquid inlet pipe 24 is embedded in the first insert plate 14 and communicates with the high-pressure nozzle 17. The edges of the protrusions on the surface of the cylinder 1 are all rounded. The arc shape of the arc-shaped cleaning plate 19 is adapted to the outer wall of the screen cylinder 6. The mounting plate 21 is adapted to the square hole 20.

[0030] The overall effect of embodiment 2 is as follows: L-shaped support legs 2 are symmetrically fixedly connected to the bottom and near both ends of the cylinder 1, enabling the L-shaped support legs 2 to support the bottom of the cylinder 1; the rotating rod 7 passes through both ends of the cylinder 1 and is rotatably connected to its bearings; a drive motor 10 is fixedly connected to one end of the cylinder 1 near the top, and the output end of the drive motor 10 is fixedly connected to one end of the rotating rod 7, enabling the drive motor 10 to drive the rotating rod 7 to rotate; a discharge funnel 11 is fixedly connected to the bottom of the cylinder 1, enabling material discharge; a limiting rod 12 passes through and slides through the center of the first panel 14 and the second panel 15, and one end of the limiting rod 12 is fixedly connected to the inner wall of one end of the slide groove 13, enabling the limiting rod 12 to limit the first panel 14 and the second panel 15; the cylinder 1… A mounting groove 22 is symmetrically provided at one end and on one side of the square hole 20. The mounting groove 22 is embedded with a mounting block 23. The mounting block 23 is fixedly connected to the mounting plate 21, which can fix the mounting plate 21. A liquid inlet pipe 24 is connected through and fixedly connected to the surface of one of the mounting plates 21. One end of the liquid inlet pipe 24 is embedded in the first insert plate 14 and communicates with the high-pressure nozzle 17, which can fill the liquid from the liquid inlet pipe 24 and spray it out from the high-pressure nozzle 17. The edges of the protrusions on the surface of the cylinder 1 are all rounded, which can improve the aesthetics of the device. The arc shape of the arc-shaped cleaning plate 19 is adapted to the outer wall of the screen cylinder 6, which can make the arc-shaped cleaning plate 19 fit against the outer arc wall of the screen cylinder 6. The mounting plate 21 is adapted to the square hole 20, which can make the mounting plate 21 completely embedded in the square hole 20.

[0031] Working principle: During operation, the drive motor 10 is started, which drives the rotating rod 7 to rotate. The gear 8 on the surface of the rotating rod 7 rotates synchronously with it. The gear 8 meshes with the toothed ring 9 on the surface of the fixed ring plate 4, thereby driving the toothed ring 9 and the rotating ring plate 5 to rotate inside the fixed ring plate 4. The screen cylinder 6 between the rotating ring plates 5 rotates synchronously with the rotating ring plate 5 inside the cylinder 1. The pulp waste enters the screen cylinder 6 through the round hole 3 at one end of the cylinder 1. During the rotation of the screen cylinder 6, fibers and other materials that meet the mesh size of the screen cylinder 6 pass through the mesh and fall to the bottom of the cylinder 1, and are finally discharged through the discharge funnel 11. Impurities are trapped inside the screen cylinder 6 and discharged through the round hole 3 at the other end of the cylinder 1. When the surface of the screen cylinder 6 becomes clogged and needs to be cleaned, high-pressure liquid is supplied to the high-pressure nozzle 17 through the liquid inlet pipe 24. The high-pressure nozzle 17 sprays high-pressure water jets onto the surface of the screen cylinder 6 for flushing. During washing, the electric push rod 18 on the surface of the second panel 15 is activated. The output end of the electric push rod 18 drives the arc-shaped cleaning plate 19 to approach the screen cylinder 6 and adhere to its outer wall. During the rotation of the screen cylinder 6, the arc-shaped cleaning plate 19 scrapes its surface, achieving efficient cleaning in conjunction with the high-pressure nozzle 17. If the high-pressure nozzle 17 or the arc-shaped cleaning plate 19 needs to be repaired, cleaned, or replaced, first pull the mounting block 23 out of the mounting groove 22, and then pull the mounting plate 21 out of the square hole 20. The first panel 14 and the second panel 15 slide away from the cylinder 1 along the slide groove 13 and the limiting rod 12, respectively, so that the high-pressure nozzle 17 or the arc-shaped cleaning plate 19 can be operated. After completion, push the first panel 14 and the second panel 15 back to their original positions along the slide groove 13 and the limiting rod 12, so that the mounting plate 21 is embedded in the square hole 20 and the mounting block 23 is embedded in the mounting groove 22, completing the component reinstallation.

[0032] The wiring diagrams of the drive motor 10, high-pressure nozzle 17, and electric push rod 18 in this utility model are common knowledge in the field. Their working principles are known technologies. The appropriate model is selected according to actual use. Therefore, the control method and wiring layout of the drive motor 10, high-pressure nozzle 17, and electric push rod 18 will not be explained in detail.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A paper pulp waste screening device, comprising a cylinder (1), characterized in that: Both ends of the cylinder (1) are provided with circular holes (3). Fixed ring plates (4) are fixedly connected to the inner walls of both ends of the cylinder (1) at the circular holes (3). Rotating ring plates (5) are embedded in and rotatably connected to the fixed ring plates (4). A screen cylinder (6) is fixedly connected between the rotating ring plates (5). A rotating rod (7) is provided inside the cylinder (1) and in the top groove. A toothed ring (9) is fitted and fixedly connected to the surface of the fixed ring plates (4). A gear (8) is fitted and fixedly connected to the surface of the rotating rod (7) above the toothed ring (9). The gear (8) meshes with the toothed ring (9). Sliding grooves (1) are provided on the inner wall surfaces of the grooves on both sides of the cylinder (1). 3) The groove (13) is embedded and slidably connected with a first panel (14) and a second panel (15). A trapezoidal plate (16) is fixedly connected to the surface of the first panel (14). A high-pressure nozzle (17) is installed at equal intervals on the surface of the trapezoidal plate (16). An electric push rod (18) is embedded and fixedly connected at equal intervals on the surface of the second panel (15). An arc-shaped cleaning plate (19) is fixedly connected to the output end of the electric push rod (18). A square hole (20) is symmetrically opened at one end of the cylinder (1). An installation plate (21) is embedded inside the square hole (20). The two installation plates (21) are fixedly connected to the first panel (14) and the second panel (15) respectively.

2. The papermaking pulp waste screening equipment according to claim 1, characterized in that: The cylinder (1) is symmetrically fixed with L-shaped support legs (2) at its bottom and near both ends.

3. The papermaking pulp waste screening equipment according to claim 1, characterized in that: Both ends of the rotating rod (7) pass through the cylinder (1) and are rotatably connected to its bearing. A drive motor (10) is fixedly connected to one end of the cylinder (1) and near the top. The output end of the drive motor (10) is fixedly connected to one end of the rotating rod (7).

4. The papermaking pulp waste screening equipment according to claim 1, characterized in that: The bottom of the cylinder (1) is fixed and connected to a discharge funnel (11).

5. The papermaking pulp waste screening equipment according to claim 1, characterized in that: The center of the first panel (14) and the second panel (15) are both connected to a limiting rod (12), and one end of the limiting rod (12) is fixedly connected to the inner wall of one end of the groove (13).

6. The papermaking pulp waste screening equipment according to claim 1, characterized in that: The cylinder (1) has symmetrically provided mounting grooves (22) at one end and on the side of the square hole (20). Each mounting groove (22) has a mounting block (23) embedded inside it. Each mounting block (23) is fixedly connected to the mounting plate (21).

7. The papermaking pulp waste screening equipment according to claim 1, characterized in that: One of the mounting plates (21) has a liquid inlet pipe (24) that is fixedly connected to its surface. One end of the liquid inlet pipe (24) is embedded in the first insert plate (14) and communicates with the high-pressure nozzle (17).

8. The papermaking pulp waste screening equipment according to claim 1, characterized in that: The edges of the protrusions on the surface of the cylinder (1) are all rounded.

9. A papermaking pulp waste screening device according to claim 1, characterized in that: The arc shape of the arc-shaped cleaning plate (19) is adapted to the outer wall of the screen cylinder (6).

10. A papermaking pulp waste screening device according to claim 1, characterized in that: The mounting plate (21) is adapted to the square hole (20).

Images