A papermaking screen drum filter screen support structure with self-cleaning function

Abstract

The application discloses a papermaking screen drum filter screen support structure with a self-cleaning function, which comprises a limiting ring, a plurality of link gears are fixed on the outer side of the limiting ring at equal angles, a stick is mounted on one side of the limiting ring at equal angles, a reinforcing rib is fixed on the outer side of the stick, and the reinforcing rib and the stick are arranged in an up-and-down staggered mode; a guide column is slidably mounted on the inner side of the limiting ring, a fixed rod is fixed to the upper end of the guide column, and one end of the fixed rod is fixedly mounted on the inner wall of a pressure screen; a cleaning mechanism is fixed to one side of the guide column, the cleaning mechanism is attached to one side of the stick, and residual pulp on the corresponding side of the stick is cleaned. The application has at least the following beneficial effects: by integrating the cleaning mechanism on the support structure, automatic cleaning of residual pulp on the filter screen support structure is realized, the papermaking efficiency is significantly improved, the service life of the filter screen is prolonged, and the replacement frequency and maintenance cost caused by filter screen blockage or wear are reduced.

Description

Technical Field

[0001] This application relates to the field of papermaking technology, specifically to a papermaking screen drum filter support structure with self-cleaning function. Background Technology

[0002] In the papermaking industry, the screen drum filter is a key piece of equipment, and its performance directly affects the papermaking efficiency and the quality of the finished product. However, the traditional support structure for papermaking screen drum filters has certain limitations in its design, the most significant problem being the lack of a self-cleaning function.

[0003] During the papermaking process, pulp tends to remain on the filter screen support structure. This residue not only gradually clogs the filter screen pores, reducing its permeability and thus affecting papermaking efficiency, but also accelerates filter screen wear, shortening its overall service life. Furthermore, the accumulation of residual pulp can lead to serious problems such as filter screen deformation and breakage, further increasing equipment maintenance costs and downtime. Therefore, effectively solving the problem of residual pulp on the filter screen support structure has become a key technical challenge for improving the performance of papermaking equipment and reducing production costs. Utility Model Content

[0004] Therefore, this application provides a papermaking screen filter support structure with self-cleaning function to solve the problems existing in the prior art.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] A papermaking screen filter support structure with self-cleaning function includes:

[0007] A limiting ring has several connecting gear teeth fixed at equal angles on its outer side. A bar is installed at equal angles on one side of the limiting ring. A reinforcing rib is fixed on the outer side of the bar. The reinforcing rib and the bar are arranged alternately vertically. A closing plate is installed on the inner side of the lowest bar to close the lower end of the bar.

[0008] A guide post is slidably installed on the inner side of the limiting ring, and a fixing rod is fixed at the upper end of the guide post. One end of the fixing rod is fixedly installed on the inner wall of the pressure screen.

[0009] A cleaning mechanism is fixed to one side of the guide post. The cleaning mechanism is attached to one side of the bar to clean the residual slurry on the corresponding side of the bar. The cleaning mechanism includes a cleaning rod.

[0010] Optionally, a limiting block is fixed on the side of the cleaning rod facing the reinforcing rib, and a limiting ring groove corresponding to the limiting block is opened on the inner side of the reinforcing rib. The limiting block and the limiting ring groove form a sliding connection.

[0011] Optionally, a bottom cleaning rod is also fixed to the end of the cleaning rod facing the closing plate.

[0012] Optionally, a limiting post is installed at the inner end of the bottom cleaning rod, and the limiting post is rotatably connected to the closing plate.

[0013] Optionally, the bottom cleaning rod has an arc-shaped cross-section, and the individual bottom cleaning rods are arranged radially at equal intervals.

[0014] Optionally, the coverage radius of the bottom cleaning rod is equal to the radius of the enclosure plate, and one side of the bottom cleaning rod is in contact with the surface of the enclosure plate.

[0015] Compared with the prior art, this application has at least the following beneficial effects:

[0016] 1. By integrating a cleaning mechanism into the support structure, the residual pulp on the filter support structure is automatically cleaned, which not only significantly improves papermaking efficiency but also extends the service life of the filter and reduces the replacement frequency and maintenance costs caused by filter clogging or wear.

[0017] 2. The cleaning rod and the reinforcing ribs on the supporting structure are connected by limiting blocks and limiting ring grooves to ensure the stability of the cleaning rod during movement. This effectively avoids bending and breakage of the cleaning rod due to insufficient material rigidity or excessive cleaning force, thus improving the reliability and safety of the equipment. Attached Figure Description

[0018] To more intuitively illustrate the prior art and this application, exemplary drawings are provided below. It should be understood that the specific shapes and structures shown in the drawings should not generally be regarded as limiting conditions for implementing this application; for example, based on the technical concept disclosed in this application and the exemplary drawings, those skilled in the art are able to easily make conventional adjustments or further optimizations to the addition / reduction / classification, specific shapes, positional relationships, connection methods, size ratios, etc. of certain units (components).

[0019] Figure 1 A schematic diagram of the overall structure of a papermaking screen drum filter support structure with self-cleaning function provided in this application;

[0020] Figure 2 A schematic cross-sectional view of a papermaking screen drum filter support structure with self-cleaning function provided in this application;

[0021] Figure 3 A schematic diagram of the overall structure of a cleaning mechanism for a papermaking screen drum filter support structure with self-cleaning function provided in this application;

[0022] Figure 4This is a schematic diagram of the overall structure of a papermaking screen drum filter support structure with self-cleaning function, showing the connection between the bottom cleaning rod and the limiting column.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Limiting ring; 2. Connecting gear teeth; 3. Bar; 4. Reinforcing rib; 5. Limiting ring groove; 6. Sealing plate; 7. Cleaning mechanism; 701. Cleaning rod; 702. Limiting block; 703. Bottom cleaning rod; 704. Limiting post; 8. Fixing rod; 9. Guide post. Detailed Implementation

[0025] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] This utility model provides a papermaking screen drum filter support structure with self-cleaning function, including a limiting ring 1, a number of connecting gear teeth 2 fixed at equal angles on the outer side of the limiting ring 1, a bar 3 installed at equal angles on one side of the limiting ring 1, a reinforcing rib 4 fixed on the outer side of the bar 3, the reinforcing rib 4 and the bar 3 being arranged alternately vertically, and a closing plate 6 installed on the inner side of the bar 3 located at the bottom to close the lower end of the bar 3.

[0027] A guide post 9 is slidably installed on the inner side of the limiting ring 1. A fixing rod 8 is fixed at the upper end of the guide post 9. One end of the fixing rod 8 is fixedly installed on the inner wall of the pressure screen, so that the fixing rod 8 is completely fixed.

[0028] A cleaning mechanism 7 is fixed to one side of the guide column 9. The cleaning mechanism 7 is attached to one side of the bar 3 to clean the residual slurry on the corresponding side of the bar 3. The cleaning mechanism 7 includes a cleaning rod 701. A limiting block 702 is fixed to the side of the cleaning rod 701 facing the reinforcing rib 4. A limiting ring groove 5 corresponding to the limiting block 702 is opened on the inner side of the reinforcing rib 4. The limiting block 702 and the limiting ring groove 5 form a sliding connection, so that the cleaning rod 701 can be restricted in different segments within different limiting ring grooves 5, avoiding bending or even breakage of the cleaning rod 701 in long segments due to insufficient material rigidity.

[0029] A bottom cleaning rod 703 is also fixed to one end of the cleaning rod 701 facing the closed plate 6. A limit post 704 is installed on the inner end of the bottom cleaning rod 703. The limit post 704 is rotatably connected to the closed plate 6, so that the corresponding position of the bottom cleaning rod 703 facing the center of the closed plate 6 has a limiting ability to prevent it from swinging.

[0030] The bottom cleaning rod 703 has an arc-shaped cross-section, and the individual bottom cleaning rods 703 are arranged radially at equal intervals, so that the coverage radius of the bottom cleaning rod 703 is equal to the radius of the sealing plate 6. One side of the bottom cleaning rod 703 is attached to the surface of the sealing plate 6 to clean the surface of the sealing plate 6 and reduce the slurry deposition on the surface of the sealing plate 6.

[0031] The technical features of the above embodiments can be combined in any way (as long as there is no contradiction in the combination of these technical features). For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described; these embodiments not explicitly written should also be considered to be within the scope of this specification.

Claims

1. A papermaking screen filter support structure with self-cleaning function, characterized in that, include: A limiting ring (1) has several connecting gear teeth (2) fixed at equal angles on its outer side. A bar (3) is installed at equal angles on one side of the limiting ring (1). A reinforcing rib (4) is fixed on the outer side of the bar (3). The reinforcing rib (4) and the bar (3) are arranged alternately. A closing plate (6) is installed on the inner side of the bar (3) at the lowest side to close the lower end of the bar (3). A guide post (9) is slidably installed on the inner side of the limiting ring (1), and a fixing rod (8) is fixed at the upper end of the guide post (9). One end of the fixing rod (8) is fixedly installed on the inner wall of the pressure screen. A cleaning mechanism (7) is fixed on one side of the guide post (9). The cleaning mechanism (7) is attached to one side of the bar (3) to clean the residual slurry on the corresponding side of the bar (3). The cleaning mechanism (7) includes a cleaning rod (701).

2. The papermaking screen filter support structure with self-cleaning function according to claim 1, characterized in that, The cleaning rod (701) is fixed with a limiting block (702) on the side facing the reinforcing rib (4). The inner side of the reinforcing rib (4) is provided with a limiting ring groove (5) corresponding to the limiting block (702). The limiting block (702) and the limiting ring groove (5) form a sliding connection.

3. The papermaking screen filter support structure with self-cleaning function according to claim 2, characterized in that, The cleaning rod (701) is also fixed with a bottom cleaning rod (703) at the end facing the closing plate (6).

4. The papermaking screen filter support structure with self-cleaning function according to claim 3, characterized in that, The bottom cleaning rod (703) has a limiting post (704) installed at its inner end, and the limiting post (704) is rotatably connected to the closing plate (6).

5. The papermaking screen filter support structure with self-cleaning function according to claim 4, characterized in that, The bottom cleaning rod (703) has an arc-shaped cross-section, and the individual bottom cleaning rods (703) are arranged radially at equal intervals.

6. The papermaking screen filter support structure with self-cleaning function according to claim 5, characterized in that, The coverage radius of the bottom cleaning rod (703) is equal to the radius of the closing plate (6), and one side of the bottom cleaning rod (703) is in contact with the surface of the closing plate (6).

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