A pulp drain cage

Abstract

This utility model discloses a pulp draining cage, including a draining mesh cylinder, a supporting frame fixed to the outside of the draining mesh cylinder, connecting frames fixed to both ends of the supporting frame, and a fixed rotating shaft located inside the draining mesh cylinder and fixedly connected to the connecting frames. A rotating shaft seat is installed on the fixed rotating shaft, and a roller frame is suspended below the rotating shaft seat by a chain. A pressure roller that is rolled and connected to the inner wall of the draining mesh cylinder is installed inside the roller frame. A rake plate is provided on one side of the pressure roller, and the rake plate is movably connected to the roller frame, with its lower edge in contact with the inner wall of the draining mesh cylinder. In this utility model, the pressure roller and rake plate are always located inside the lower part of the draining mesh cage due to gravity. When the draining mesh cage rotates and drives the pulp to move, the pulp is squeezed and drained by the gravity of the pressure roller, improving the draining efficiency. At the same time, in order to prevent the pulp from being squeezed and adhering to the inner wall of the draining mesh cylinder, the rake plate scrapes the inner wall of the draining mesh cylinder when the draining mesh cylinder rotates, achieving the effect of not affecting the pulp conveying and improving the draining efficiency.

Description

Technical Field

[0001] This utility model relates to the field of dewatering equipment technology, specifically a pulp dewatering mesh cage. Background Technology

[0002] When the draining mesh cage and its internal fixed rotating shaft are installed, one end is slightly higher than the other. When the pulp is drained through the draining mesh cage, the pulp is fed into the draining mesh cage from the higher end. With the action of gravity, the water in the pulp seeps downwards. With the action of gravity and the rotation of the draining mesh cage, the pulp gradually moves from the higher end to the lower end inside the draining mesh cage, continuously tumbling and draining.

[0003] However, due to the large size of the draining mesh cage, it is not suitable for high-speed rotation to accelerate the draining by centrifugal force, resulting in low draining efficiency. Therefore, the pulp needs to pass through multiple draining mesh cages for draining, which not only occupies workshop space, but also increases energy consumption due to the many steps involved. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a pulp draining mesh cage to solve the problem of low draining efficiency in existing pulp draining mesh cages.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A pulp draining mesh cage includes a draining mesh cylinder, a support frame fixed to the outside of the draining mesh cylinder, connecting frames fixed to both ends of the support frame, and a fixed rotating shaft located inside the draining mesh cylinder and fixedly connected to the connecting frames. A rotating shaft seat is installed on the fixed rotating shaft, and a roller frame is suspended below the rotating shaft seat by a chain. A pressure roller that is rolled and connected to the inner wall of the draining mesh cylinder is installed inside the roller frame. A rake plate is provided on one side of the pressure roller. The rake plate is movably connected to the roller frame, and the lower edge of the rake plate contacts the inner wall of the draining mesh cylinder.

[0006] Preferably, the lower part of the draining mesh cylinder is provided with multiple sets of roller frames, pressure rollers and rake plates equidistantly arranged along the axial direction.

[0007] Preferably, each of the roller frames is connected to two rotating shaft seats by two chains, and the chains are connected to the top two ends of the roller frame.

[0008] Preferably, the two chains corresponding to each roller frame are parallel to each other or inclined with their lower ends close together and their upper ends far apart.

[0009] Preferably, pins are installed at both ends of the roller frame, and the rake plate is rotatably mounted on the pins.

[0010] Preferably, the rake plate is an arc-shaped steel plate that curves upward in the middle, and the side of the rake plate that contacts the draining net cylinder is provided with dense rake teeth.

[0011] Compared with the prior art, the present invention has the following beneficial effects: This invention incorporates a pressure roller and a rake plate. Due to gravity, the pressure roller and rake plate are always positioned inside the lower part of the draining mesh cage. When the draining mesh cage rotates and moves the pulp, the pulp is squeezed and drained by the gravity of the pressure roller, improving the draining efficiency. At the same time, to prevent the pulp from being squeezed and adhering to the inner wall of the draining mesh cylinder, the rake plate scrapes the inner wall of the draining mesh cylinder when it rotates, achieving the effect of not affecting the pulp conveying while improving the draining efficiency. This solves the problem of low draining efficiency in existing pulp draining mesh cages. Attached Figure Description

[0012] Figure 1 This is a front view of the present utility model; Figure 2 This is a front view of the internal structure of this utility model; Figure 3 This is a side view of the structure at the corresponding position of the fixed rotating shaft of this utility model; Figure 4 This is a partial side view of the structure at the corresponding position of the rake plate of this utility model; Figure 5 This is a partial side view of the structure at the corresponding position of the pressure roller of this utility model.

[0013] In the diagram: 1. Draining screen cylinder; 2. Support frame; 3. Connecting frame; 4. Fixed rotating shaft; 5. Rotating shaft seat; 6. Chain; 7. Roller frame; 8. Pressure roller; 9. Rake plate; 10. Pin shaft; 11. Rake teeth. Detailed Implementation

[0014] 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.

[0015] like Figure 1-5 As shown, this utility model provides a technical solution: a pulp draining mesh cage, including a draining mesh cylinder 1, a support frame 2 fixed to the outside of the draining mesh cylinder 1, a connecting frame 3 fixed to both ends of the support frame 2, and a fixed rotating shaft 4 located inside the draining mesh cylinder 1 and fixedly connected to the connecting frame 3. A rotating shaft seat 5 is installed on the fixed rotating shaft 4. A roller frame 7 is suspended below the rotating shaft seat 5 by a chain 6. Each roller frame 7 is connected to two rotating shaft seats 5 by two chains 6, and the chains 6 are connected to the top two ends of the roller frame 7. The two chains 6 corresponding to each roller frame 7 are parallel to each other or inclined with their lower ends close to each other and their upper ends far apart. Inside the roller frame 7, a pressure roller 8 is installed and is rolledly connected to the inner wall of the drain net cylinder 1. A rake plate 9 is provided on one side of the pressure roller 8. Multiple sets of roller frames 7, pressure rollers 8 and rake plates 9 are equidistantly arranged along the axial direction at the lower part of the drain net cylinder 1. The rake plate 9 is movably connected to the roller frame 7. Pins 10 are installed at both ends of the roller frame 7. The rake plate 9 is rotatably mounted on the pins 10, and the lower edge of the rake plate 9 is in contact with the inner wall of the drain net cylinder 1. The rake plate 9 is an arc-shaped steel plate that is bent upward in the middle. Dense rake teeth 11 are provided on the side of the rake plate 9 that is in contact with the drain net cylinder 1.

[0016] Working principle: If the height of the rear end of the draining screen cylinder 1 and the fixed rotating shaft 4 is greater than the height of the front end during installation, the pulp will be continuously added from the rear end of the draining screen cylinder 1. The thickness remaining in the draining screen cage will not exceed five centimeters. The pulp will drain naturally due to gravity. The draining screen cylinder 1 will rotate counterclockwise under the drive system. With the rotation of the draining roller and the action of gravity, the pulp will tumble inside the draining screen cylinder 1 and gradually move from back to front. It will be rolled by the pressure roller 8, which is always located at the bottom inside the draining screen cylinder 1. The pressure roller 8 is a solid steel roller. The rolling action will accelerate the drainage. When rotating counterclockwise, the edge of the rake plate 9 on the right side of the pressure roller 8 will always scrape against the inner wall of the draining screen cylinder 1. This will scrape down the pulp adhering to the inner wall of the draining screen cylinder 1 and prevent it from adhering and being unable to be conveyed.

[0017] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0018] 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 draining mesh cage, comprising a draining mesh cylinder (1), a supporting frame (2) fixed to the outside of the draining mesh cylinder (1), connecting frames (3) fixed to both ends of the supporting frame (2), and a fixed rotating shaft (4) located inside the draining mesh cylinder (1) and fixedly connected to the connecting frames (3), characterized in that: A rotating shaft seat (5) is installed on the fixed rotating shaft (4). A roller frame (7) is suspended below the rotating shaft seat (5) by a chain (6). A pressure roller (8) is installed inside the roller frame (7) and is rolledly connected to the inner wall of the drain net cylinder (1). A rake plate (9) is provided on one side of the pressure roller (8). The rake plate (9) is movably connected to the roller frame (7), and the lower edge of the rake plate (9) is in contact with the inner wall of the drain net cylinder (1).

2. The pulp draining mesh cage according to claim 1, characterized in that: The draining net cylinder (1) has multiple sets of roller frames (7), pressure rollers (8) and rake plates (9) arranged equidistantly along the axial direction at the lower part of the interior.

3. The pulp draining mesh cage according to claim 1, characterized in that: Each of the roller frames (7) is connected to two rotating shaft seats (5) by two chains (6), and the chains (6) are connected to the top two ends of the roller frame (7).

4. The pulp draining mesh cage according to claim 1, characterized in that: The two chains (6) corresponding to each roller frame (7) are parallel to each other or inclined with their lower ends close to each other and their upper ends far apart.

5. A pulp draining screen cage according to claim 1, characterized in that: The roller frame (7) is equipped with pins (10) at both ends, and the rake plate (9) is rotatably mounted on the pins (10).

6. A pulp draining screen cage according to claim 1, characterized in that: The rake plate (9) is an arc-shaped steel plate that curves upward in the middle, and the side of the rake plate (9) that contacts the draining net cylinder (1) is provided with dense rake teeth (11).

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