Pulping device for paper pulp raw materials

Abstract

The utility model provides a paper pulp raw material repulping device which comprises a support, a repulping barrel is arranged at the top of the support, a barrel cover is fixedly connected to the top of the repulping barrel through bolts, a first motor is fixedly connected to the bottom of the repulping barrel, the first motor is provided with a first motor shaft, and the first motor shaft penetrates through the bottom of the repulping barrel and extends into the repulping barrel. A lower grinding disc is welded to the end, away from the first motor, of the first motor shaft, a plurality of pulp passing channels are formed in the center of the top of the lower grinding disc around the first motor shaft, and the outer ring of the lower grinding disc is rotationally matched with the inner wall of the pulping barrel. The lower grinding disc is welded to the first motor shaft, the upper grinding disc is welded to the second motor, the grinding protruding strips are arranged on the close faces of the upper grinding disc and the lower grinding disc, the first motor and the second motor are started through tangency between the grinding protruding strips, the first motor rotates forwards, and the second motor rotates backwards; the grinding raised lines on the lower grinding disc and the grinding raised lines on the upper grinding disc make tangent motion, when paper pulp passes through the gap between the upper grinding disc and the lower grinding disc, the paper pulp is ground by the grinding raised lines, the quality of paper pulp repulping is guaranteed, and then the quality of paper production is guaranteed.

Description

Technical Field

[0001] This utility model relates to a pulping device for paper pulp raw materials, belonging to the technical field of pulping devices. Background Technology

[0002] A pulper is a fiber raw material crushing device used in waste paper recycling and remanufacturing processes. By adding water and subjecting the pulp raw material to tearing action on the blades and the mutual friction between the pulp layers, the pulp is strongly broken down and the fibers are separated in a wet state to obtain paper pulp, which is then ready for subsequent production processing.

[0003] However, in existing technologies, when pulp fibers are far apart, the tearing action of the blades and the friction between the pulp layers cannot completely break down the confined raw materials, resulting in the retention of particulate matter. This leads to poor pulp quality and affects the quality of the produced paper. Therefore, this invention proposes a paper pulp breaking device to solve the above problems. Utility Model Content

[0004] Based on the above background, the purpose of this utility model is to provide a pulping device for paper pulp raw materials to solve the problems in the background art.

[0005] This utility model provides the following technical solution:

[0006] A pulping device for paper raw materials includes a support frame, a pulping tank at the top of the support frame, a tank lid fixedly connected to the top of the pulping tank by bolts, a first motor fixedly connected to the bottom of the pulping tank, the first motor having a first motor shaft extending through the bottom of the pulping tank into the interior of the pulping tank, a lower grinding disc welded to the end of the first motor shaft away from the first motor, multiple pulp passages formed around the first motor shaft at the top center of the lower grinding disc, the outer ring of the lower grinding disc rotatingly engaging with the inner wall of the pulping tank, a second motor at the top center of the tank lid, the second motor having a second motor shaft extending through the tank lid into the pulping tank, an upper grinding disc welded to the end of the second motor shaft away from the second motor, the diameter of the upper grinding disc being smaller than the inner diameter of the pulping tank, and multiple grinding protrusions circumferentially provided on the adjacent surfaces of the upper and lower grinding discs, the grinding protrusions on the upper grinding disc being tangential to the grinding protrusions on the lower grinding disc.

[0007] Preferably, a frustum is provided at the center of the bottom of the inner wall of the pulping tank, and an annular filter screen is fixedly connected to the frustum by hexagonal bolts. The second motor shaft is rotatably connected to the frustum, and a set of anti-clogging rods is provided on the second motor shaft. The anti-clogging rods are tangent to the top surface of the annular filter screen.

[0008] Preferably, the first motor shaft is provided with a plurality of lower stirring rods arranged vertically and horizontally in a circular pattern on the part inside the pulping tank, and the lower stirring rods are all located between the lower grinding disc and the filter screen.

[0009] Preferably, the second motor shaft is provided with a plurality of upper stirring rods arranged vertically and horizontally in a circular pattern on the inner part of the pulping tank, and the upper stirring rods are all located between the upper grinding disc and the tank cover.

[0010] Preferably, the top of the barrel lid is provided with a feeding head, and the feeding head is equipped with a feeding valve.

[0011] Preferably, the bottom inclined surface of the pulping tank is provided with a discharge head, and a discharge valve is installed on the discharge head.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] This utility model discloses a pulping device for paper raw materials. A lower grinding disc is welded to a first motor shaft, and a grinding disc is welded to a second motor. Grinding protrusions are provided on the adjacent surfaces of the upper and lower grinding discs. By utilizing the tangency between the grinding protrusions, the first and second motors are started. The first motor rotates forward, and the second motor rotates in reverse. The grinding protrusions on the lower and upper grinding discs move tangentially. When the pulp passes through the gap between the upper and lower grinding discs, it is ground by the grinding protrusions, ensuring the quality of the pulp and thus ensuring the quality of paper production. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0016] Figure 2 This is a utility model Figure 1 A schematic diagram of a half-section structure;

[0017] Figure 3 This is a schematic diagram of the lower grinding disc structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the upper grinding disc structure of this utility model.

[0019] In the diagram: 1. Support frame; 2. Pulping tank; 3. Bolt; 4. Tank lid; 5. First motor; 6. First motor shaft; 7. Lower grinding disc; 8. Pulping channel; 9. Second motor; 10. Second motor shaft; 11. Upper grinding disc; 12. Grinding ridge; 13. Frustum; 14. Socket head bolt; 15. Annular filter screen; 16. Anti-clogging rod; 17. Lower stirring rod; 18. Upper stirring rod; 19. Feed head; 20. Feed valve; 21. Discharge head; 22. Discharge valve. Detailed Implementation

[0020] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. It should be understood that the implementation of this utility model is not limited to the following embodiments, and any modifications and / or alterations made to this utility model will fall within the protection scope of this utility model.

[0021] In this invention, unless otherwise specified, all parts and percentages are by weight, and the equipment and raw materials used are commercially available or commonly used in the field. Unless otherwise specified, the methods in the following embodiments are conventional methods in the field. Unless otherwise specified, the components or equipment in the following embodiments are general standard parts or components known to those skilled in the art, and their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0022] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the following detailed description, many specific details are set forth to facilitate explanation and provide a comprehensive understanding of the embodiments of the present invention. However, one or more embodiments may be practiced by those skilled in the art without these specific details.

[0023] like Figures 1-4As shown, a pulping device for paper raw materials includes a support 1. A pulping tank 2 is provided on the top of the support 1. A tank cover 4 is fixedly connected to the top of the pulping tank 2 by bolts 3. A first motor 5 is fixedly connected to the bottom of the pulping tank 2. The first motor 5 has a first motor shaft 6, which extends through the bottom of the pulping tank 2 and into the interior of the pulping tank 2. A lower grinding disc 7 is welded to the end of the first motor shaft 6 away from the first motor 5. Multiple pulp passages 8 are formed around the center of the top of the lower grinding disc 7 around the first motor shaft 6. The outer ring of the lower grinding disc 7 is connected to the pulping tank. The inner walls of the bucket 2 are rotated together. A second motor 9 is provided at the center of the top of the bucket lid 4. The second motor 9 is provided with a second motor shaft 10. The second motor shaft 10 extends through the bucket lid 4 into the pulping bucket 2. An upper grinding disc 11 is welded to the end of the second motor shaft 10 away from the second motor 9. The diameter of the upper grinding disc 11 is smaller than the inner diameter of the pulping bucket 2. Several grinding protrusions 12 are provided in a circular shape on the surfaces of the upper grinding disc 11 and the lower grinding disc 7. The grinding protrusions 12 on the upper grinding disc 11 are tangent to the grinding protrusions 12 on the lower grinding disc 7.

[0024] In the above technical solution, a lower grinding disc 7 is welded to the first motor shaft 6, and a grinding disc 11 is welded to the second motor 9. Grinding protrusions 12 are provided on the adjacent surfaces of the upper grinding disc 11 and the lower grinding disc 7. The tangency between the grinding protrusions 12 is used to start the first motor 5 and the second motor 9. The first motor 5 rotates forward and the second motor 9 rotates in reverse. The grinding protrusions 12 on the lower grinding disc 7 and the grinding protrusions 12 on the upper grinding disc 11 move tangentially. When the pulp passes through the gap between the upper grinding disc 11 and the lower grinding disc 7, it will be ground by the grinding protrusions 12, which ensures the quality of the pulp and thus the quality of paper production.

[0025] In this utility model, a frustum 13 is provided at the center of the bottom of the inner wall of the pulping tank 2. An annular filter screen 15 is fixedly connected to the frustum 13 by an internal hex bolt 14. The second motor shaft 10 is rotatably connected to the frustum 13. A set of anti-blocking rods 16 is provided on the second motor shaft 10. The anti-blocking rods 16 are tangent to the top surface of the annular filter screen 15.

[0026] In the above technical solution, the annular filter screen 15 can filter the pulp during discharge. The anti-clogging rod 16 can be driven to rotate and scrape the top surface of the annular filter screen 15 when the second motor shaft 10 rotates, thus preventing the annular filter screen 15 from clogging.

[0027] In this utility model, the first motor shaft 6 is located inside the pulping tank 2 and is provided with a plurality of lower stirring rods 17 arranged vertically and circumferentially. The lower stirring rods 17 are all located between the lower grinding disc 7 and the filter screen.

[0028] In the above technical solution, the lower stirring rod 17 can be used to stir the ground pulp, making it more uniformly mixed.

[0029] In this utility model, the second motor shaft 10 is located inside the pulping tank 2 and is provided with a plurality of upper stirring rods 18 arranged vertically and circumferentially. The upper stirring rods 18 are all located between the upper grinding disc 11 and the tank cover 4.

[0030] In the above technical solution, by setting the upper stirring rod 18, the pulp that enters the pulping tank 2 can be initially pulped and mixed, which is beneficial to the next step of pulp grinding.

[0031] In this utility model, in order to facilitate the pulp entering the pulping tank 2 and to control the flow rate, a feed head 19 is provided on the top of the tank cover 4, and a feed valve 20 is installed on the feed head 19.

[0032] In this utility model, in order to facilitate the flow of pulp from the pulping tank 2 and to control the flow rate, a discharge head 21 is provided on the inclined surface at the bottom of the pulping tank 2, and a discharge valve 22 is installed on the discharge head 21.

[0033] It is worth noting that:

[0034] In this invention, the first motor 5 and the second motor 9 are electrically connected to and controlled by a controller.

[0035] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A pulping device for paper raw materials, characterized in that: The system includes a support frame (1), a pulping tank (2) on top of the support frame (1), a lid (4) fixedly connected to the top of the pulping tank (2) by bolts (3), a first motor (5) fixedly connected to the bottom of the pulping tank (2), a first motor shaft (6) on the first motor (5), the first motor shaft (6) extending through the bottom of the pulping tank (2) into the interior of the pulping tank (2), a lower grinding disc (7) welded to the end of the first motor shaft (6) away from the first motor (5), multiple pulp passages (8) are formed around the first motor shaft (6) at the top center of the lower grinding disc (7), and the outer ring of the lower grinding disc (7) is flush with the inner wall of the pulping tank (2). The two parts rotate and cooperate. The top center of the barrel cover (4) is provided with a second motor (9). The second motor (9) is provided with a second motor shaft (10). The second motor shaft (10) extends through the barrel cover (4) into the pulping barrel (2). The end of the second motor shaft (10) away from the second motor (9) is welded with an upper grinding disc (11). The diameter of the upper grinding disc (11) is smaller than the inner diameter of the pulping barrel (2). The upper grinding disc (11) and the lower grinding disc (7) are provided with several grinding protrusions (12) in a circular shape on their similar surfaces. The grinding protrusions (12) on the upper grinding disc (11) are tangent to the grinding protrusions (12) on the lower grinding disc (7).

2. The pulping device for paper raw materials according to claim 1, characterized in that: The pulping tank (2) has a frustum (13) at the center of the bottom of the inner wall. A ring filter screen (15) is fixedly connected to the frustum (13) by an internal hex bolt (14). The second motor shaft (10) is rotatably connected to the frustum (13). A set of anti-blocking rods (16) is provided on the second motor shaft (10). The anti-blocking rods (16) are tangent to the top surface of the ring filter screen (15).

3. The pulping device for paper raw materials according to claim 2, characterized in that: The first motor shaft (6) is located inside the pulping tank (2) and has several sets of lower stirring rods (17) arranged vertically and circumferentially. The lower stirring rods (17) are all located between the lower grinding disc (7) and the filter screen.

4. A pulping device for paper raw materials according to claim 3, characterized in that: The second motor shaft (10) is located inside the pulping bucket (2) and has several sets of upper stirring rods (18) arranged in a circular pattern. The upper stirring rods (18) are all located between the upper grinding disc (11) and the bucket cover (4).

5. A pulping device for paper raw materials according to claim 1, characterized in that: The top of the barrel lid (4) is provided with a feed head (19), and a feed valve (20) is installed on the feed head (19).

6. A pulping device for paper raw materials according to claim 1, characterized in that: The pulping bucket (2) has a discharge head (21) on its bottom inclined surface, and a discharge valve (22) is installed on the discharge head (21).

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