Pulp tower for storing paper pulp

By designing the propeller and stirring rod structure inside the cylinder, the problems of stratification and flocculation during pulp storage were solved, achieving uniform storage and smooth discharge of pulp.

CN223963728UActive Publication Date: 2026-03-03VINDA PAPER LIAONING
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-24
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

Pulp is prone to stratification and flocculation during storage, leading to uneven storage and blockage of discharge pipes.

Method used

A pulp tower comprising a cylinder, a riser, a rotating shaft, and a dispersing rod was designed. By using a combination of a propeller and a stirring rod, the pulp can achieve vertical circulation and horizontal mixing, preventing sedimentation and flocculation.

Benefits of technology

It effectively prevents pulp sedimentation, stratification, and flocculation, ensuring uniform pulp quality and avoiding blockage of the discharge pipe.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a pulp tower for storing paper pulp, which relates to the technical field of papermaking equipment and comprises a barrel, a feeding pipe is fixedly connected to one side above the barrel, a lifting pipe is fixedly arranged on the outer side of the barrel, a connecting pipe is connected to the bottom of the barrel, the bottom of the lifting pipe is connected with the connecting pipe, and the top of the lifting pipe is communicated with the inside of the barrel. A first rotating shaft is rotationally arranged in the lifting pipe, a plurality of propellers are fixedly arranged on the first rotating shaft, a plurality of first dispersing rods are fixedly arranged on one side wall of the rotating shaft in the height direction, a plurality of second dispersing rods are fixedly arranged on the inner wall of the lifting pipe in the height direction, and the first dispersing rods and the second dispersing rods are arranged in a staggered mode in the height direction. Paper pulp can flow up and down in the barrel through the lifting pipe, the paper pulp flowing up and down can be stirred in the horizontal direction through the stirring rod, the paper pulp is prevented from precipitating and layering, and flocculated paper pulp blocks can be smashed through the first dispersing rod and the second dispersing rod in the lifting pipe.
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Description

Technical Field

[0001] This utility model relates to the field of papermaking equipment technology, specifically a pulp tower for storing pulp. Background Technology

[0002] The papermaking process involves a pulping stage, which uses the mechanical action of grinding discs to process the fibers in the pulp, loosening, appropriately cutting and separating them into flocs. This allows the fibers to absorb water and swell during pulping, so that the produced paper can meet the expected quality indicators. After pulping, the pulp is stored in a pulp tower, ready to be transported to the next papermaking stage.

[0003] However, pulp is prone to stratification during storage, and some pulp is also prone to flocculation during storage, resulting in uneven internal material of the discharged pulp and easy blockage of the discharge pipe. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a pulp tower for storing pulp, which solves the problems of pulp stratification and flocculation that easily occur in traditional pulp towers when storing pulp.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A pulp tower for storing pulp includes a cylinder, a feed pipe fixedly connected to one side of the upper part of the cylinder, a lifting pipe fixedly installed on the outer side of the cylinder, a connecting pipe connected to the bottom of the cylinder, the bottom of the lifting pipe connected to the connecting pipe, a discharge pipe connected to one end of the connecting pipe, the top of the lifting pipe communicating with the inside of the cylinder, a rotating shaft rotatably installed inside the lifting pipe, multiple spiral propellers fixedly installed on the rotating shaft rotatably, multiple sets of dispersing rods rotatably installed along the height direction on one side wall of the rotating shaft, each set of dispersing rods rotatably installed multiple times, and multiple sets of dispersing rods rotatably installed along the height direction on the inner wall of the lifting pipe, each set of dispersing rods rotatably installed multiple times, the multiple sets of dispersing rods rotatably installed and the multiple sets of dispersing rods rotatably installed are staggered along the height direction.

[0006] Preferably, the top of the lifting pipe is connected to a horizontally arranged water distribution pipe, which extends into the cylinder and has multiple water distribution holes.

[0007] Preferably, a second rotating shaft is provided inside the cylinder, and a stirring rod is provided on the side wall of the second rotating shaft.

[0008] Preferably, a motor is fixedly installed on the outer side of the upper part of the cylinder, and a drive pulley is fixedly connected to the power output end of the motor. A small pulley is fixedly installed on the top of the first rotating shaft, and a large pulley is fixedly installed on the top of the second rotating shaft. Both the small pulley and the large pulley are connected to the drive pulley by belts.

[0009] Preferably, a valve is installed on the discharge pipe.

[0010] Beneficial effects

[0011] This utility model provides a pulp tower for storing pulp, which has the following beneficial effects: the pulp can flow up and down in the cylinder through the riser pipe, and the stirring rod can agitate the pulp flowing up and down in the horizontal direction to prevent the pulp from settling and separating. The dispersing rod one and dispersing rod two in the riser pipe can break up the flocculated pulp blocks and prevent the pulp from affecting the discharge due to flocculation. Attached Figure Description

[0012] Figure 1 This is a front view of the internal structure of this utility model;

[0013] Figure 2 for Figure 1 A magnified view of part A in the image.

[0014] In the diagram: 1. Cylinder; 2. Feed pipe; 3. Lifting pipe; 4. Connecting pipe; 5. Discharge pipe; 6. Water distribution pipe; 7. Shaft 1; 8. Propeller; 9. Dispersing rod 1; 10. Dispersing rod 2; 11. Water distribution hole; 12. Shaft 2; 13. Stirring rod; 14. Large pulley; 15. Small pulley; 16. Motor; 17. Drive pulley; 18. Valve. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0016] Please see Figure 1-2 This utility model provides a technical solution: a pulp tower for storing pulp, including a cylinder 1, a feed pipe 2 fixedly connected to one side of the upper part of the cylinder 1, a lifting pipe 3 fixedly installed on the outside of the cylinder 1, a connecting pipe 4 connected to the bottom of the cylinder 1, the bottom of the lifting pipe 3 connected to the connecting pipe 4, a discharge pipe 5 connected to one end of the connecting pipe 4, and the top of the lifting pipe 3 communicating with the inside of the cylinder 1. The pulp in the cylinder 1 can enter the lifting pipe 3 through the connecting pipe 4, and the pulp in the lifting pipe 3 can flow into the cylinder 1. A rotating shaft 7 is rotatably installed inside the lifting pipe 3, and multiple spiral propellers 8 are fixedly installed on the rotating shaft 7. The rotation of the propeller 8 causes the pulp in the riser pipe 3 to flow upward, allowing the pulp to circulate up and down within the cylinder 1, preventing pulp sedimentation. Multiple sets of dispersing rods 9 are fixedly installed on the side wall of the rotating shaft 7 along the height direction, with multiple sets of dispersing rods 9. Multiple sets of dispersing rods 10 are fixedly installed on the inner wall of the riser pipe 3 along the height direction, with multiple sets of dispersing rods 9 and 10 staggered along the height direction. The multiple sets of dispersing rods 8 and 10 can break up the flocculated lumps in the pulp, and the broken pulp flows back into the cylinder 1 through the riser pipe.

[0017] Furthermore, the top of the lifting pipe 3 is connected to a horizontally arranged water distribution pipe 6, which extends into the cylinder 1. The water distribution pipe 6 has multiple water distribution holes 11, which allow the pulp to be more dispersed into the cylinder 1.

[0018] Furthermore, a rotating shaft 12 is rotatably installed inside the cylinder 1, and a stirring rod 13 is installed on the side wall of the rotating shaft 12. The rotating shaft 12 can drive the stirring rod 13 to rotate, and the stirring rod 13 can stir the pulp inside the cylinder 1 to improve the mixing effect.

[0019] Furthermore, a motor 16 is fixedly installed on the outer side of the upper part of the cylinder 1. The power output end of the motor 16 is fixedly connected to the drive pulley 17. A small pulley 15 is fixedly installed on the top of the first shaft 7, and a large pulley 14 is fixedly installed on the top of the second shaft 12. Both the small pulley 15 and the large pulley 14 are connected to the drive pulley 17 by belts. The motor 16 can drive the first shaft 7 and the second shaft 12 to rotate simultaneously. The difference in diameter between the large pulley 14 and the small pulley 15 can make the rotation speed of the first shaft 7 greater than that of the second shaft 12, thereby improving the water conveying efficiency of the propeller 8 and increasing the torque of the second shaft 12.

[0020] Furthermore, a valve 18 is installed on the discharge pipe 5, and opening the valve 18 can discharge the pulp.

[0021] The working principle and usage process of this utility model are as follows: During use, the pulp is discharged into the cylinder 1 through the feed pipe 2. Starting the motor 16 can make the rotating shaft 7 and the rotating shaft 12 rotate simultaneously. The spiral propeller 8 on the rotating shaft 7 can make the pulp in the lifting pipe 3 flow upward, so that the pulp at the bottom of the cylinder 1 enters the lifting pipe 3 through the connecting pipe 4. The pulp in the lifting pipe 3 can be discharged into the cylinder 1 through the water distribution pipe 6, so that the pulp can flow up and down in the cylinder 1. The rotating shaft 12 can drive the stirring rod 13 to rotate. The stirring rod 13 can stir the pulp flowing up and down in the horizontal direction, so as to stir the pulp and prevent the pulp from settling and separating. The dispersing rod 9 and the dispersing rod 10 in the lifting pipe 3 can break up the flocculated pulp lumps, so as to avoid the pulp from affecting the discharge due to flocculation.

[0022] 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 these 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 pulp tower for storing paper pulp, characterized in that, The device includes a cylinder (1), a feed pipe (2) fixedly connected to one side of the upper part of the cylinder (1), a lifting pipe (3) fixedly installed on the outside of the cylinder (1), a connecting pipe (4) connected to the bottom of the cylinder (1), the bottom of the lifting pipe (3) connected to the connecting pipe (4), a discharge pipe (5) connected to one end of the connecting pipe (4), the top of the lifting pipe (3) connected to the inside of the cylinder (1), a rotating shaft (7) rotatably installed inside the lifting pipe (3), multiple propellers (8) fixedly installed on the rotating shaft (7), multiple sets of dispersing rods (9) fixedly installed on the side wall of the rotating shaft (7) along the height direction, each set of dispersing rods (9) being multiple, multiple sets of dispersing rods (10) fixedly installed on the inner wall of the lifting pipe (3) along the height direction, each set of dispersing rods (10) being multiple, and multiple sets of dispersing rods (9) and multiple sets of dispersing rods (10) being staggered along the height direction.

2. A pulp tower for storing pulp according to claim 1, characterized in that, The top of the lifting pipe (3) is connected to a horizontally arranged water distribution pipe (6), which extends into the cylinder (1). Multiple water distribution holes (11) are provided on the water distribution pipe (6).

3. A pulp tower for storing pulp according to claim 1, characterized in that, The cylinder (1) is equipped with a rotating shaft (12) inside, and a stirring rod (13) is provided on the side wall of the rotating shaft (12).

4. A pulp tower for storing pulp according to claim 3, characterized in that, A motor (16) is fixedly installed on the outer side of the upper part of the cylinder (1). The power output end of the motor (16) is fixedly connected to the drive pulley (17). A small pulley (15) is fixedly installed on the top of the first rotating shaft (7). A large pulley (14) is fixedly installed on the top of the second rotating shaft (12). Both the small pulley (15) and the large pulley (14) are connected to the drive pulley (17) by belts.

5. A pulp tower for storing pulp according to claim 1, characterized in that, A valve (18) is installed on the discharge pipe (5).