Papermaking pulp washing mechanism

Abstract

The utility model discloses a papermaking pulp washing mechanism which comprises a base, the top of the base is fixedly connected with a pulp washing shell, an inner cavity of the pulp washing shell is provided with a filtering frame, one end of the pulp washing shell is provided with a hydraulic cylinder, the output end of the hydraulic cylinder is connected with a cleaning mechanism, and the cleaning mechanism is arranged in the filtering frame. A filter frame is arranged in the pulp washing shell, a sealing cover is connected to one end of the filter frame, a pulp inlet pipe is connected to the sealing cover, a driving mechanism is arranged at the top of the pulp washing shell, an arc-shaped scraping plate is connected to the driving mechanism, and a pulp outlet pipe is connected to the bottom of the pulp washing shell. When impurities in pulp are filtered through the sieve pores of the filter frame, the hydraulic cylinder drives the sliding plate and the annular scraping plate to scrape the inner wall of the filter frame, the impurities accumulated in the filter frame are pushed and discharged, the interior of the filter frame is conveniently cleaned, and the pulp washing efficiency during papermaking is improved.

Description

Technical Field

[0001] This utility model relates to the field of papermaking equipment technology, and more specifically, to a papermaking pulp washing mechanism. Background Technology

[0002] In the pulping process of papermaking, a pulp washer is usually used to separate the dissociated fibers from the cooking waste liquor in order to obtain clean pulp. During the washing process in the pulp washer, because the pulp raw material contains a lot of impurities, after the impurities in the pulp are filtered by the screen plate, the impurities still remain on the screen plate. After a period of use, the impurities accumulated on the screen plate will cause the screen plate to become blocked, which will prevent the pulp from flowing efficiently from the screen plate, thus affecting the washing efficiency of the pulp washer.

[0003] In the prior art, Chinese patent application number 202320949445.9 discloses a papermaking pulp washing mechanism, including a pulp washing machine. The pulp washing machine consists of a pulp washing shell and a screen plate disposed within the pulp washing shell. The upper and lower ends of the pulp washing shell are respectively provided with a pulp inlet pipe and a pulp outlet pipe. It also includes a cleaning mechanism disposed within the pulp washing shell for cleaning the screen plate. The cleaning mechanism includes an operating plate slidably connected within the pulp washing shell. An L-shaped plate is fixedly connected to one side of the operating plate, and a cleaning plate is disposed on the side of the L-shaped plate closest to the screen plate. This invention, through the setting of the cleaning mechanism, drives the cleaning plate to move on the surface of the screen plate under the driving action of the driving mechanism, thereby scraping and cleaning impurities on the surface of the screen plate. This avoids clogging of the screen plate due to excessive accumulation of impurities, thus ensuring that the pulp can flow efficiently from the screen plate, further improving the pulp washing efficiency of the pulp washing machine. However, when cleaning the screen plate, it can only clean one side of the screen plate; the other side of the screen plate will also be affected by the accumulation of impurities, affecting the filtration effect of the screen plate.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a papermaking pulp washing mechanism to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] A papermaking pulp washing mechanism includes a base, a pulp washing shell fixedly connected to the top of the base, a filter frame disposed in the inner cavity of the pulp washing shell, a hydraulic cylinder installed at one end of the pulp washing shell, a cleaning mechanism connected to the output end of the hydraulic cylinder, the cleaning mechanism being disposed inside the filter frame, a sealing cover connected to one end of the filter frame, a pulp inlet pipe connected to the sealing cover, a driving mechanism disposed at the top of the pulp washing shell, an arc-shaped scraper connected to the driving mechanism, and a pulp outlet pipe connected to the bottom of the pulp washing shell.

[0008] Preferably, the filter frame is arranged in a ring shape, and the filter frame is uniformly provided with sieve holes.

[0009] Preferably, the cleaning mechanism includes a sliding plate, an annular scraper, a drive motor, and a stirring rod. The drive motor is mounted on one side of the sliding plate, and the output shaft of the drive motor is connected to the stirring rod. The annular scraper is disposed on one side of the sliding plate.

[0010] Preferably, the annular scraper is fitted to the inner wall of the filter frame, and the sealing cap is threaded onto the filter frame.

[0011] Preferably, the drive mechanism includes a connecting housing, a servo motor, a lead screw, and a moving block. The connecting housing is fixed to the top of the washing and pulping housing, the servo motor is installed at one end of the connecting housing, the output shaft of the servo motor is connected to the lead screw, and the moving block is connected to the lead screw.

[0012] Preferably, one end of the moving block is connected to an arc-shaped scraper, which is attached to the outside of the filter frame.

[0013] Preferably, the bottom of the inner cavity of the washing shell is provided with a flow guide slope, and the slurry outlet pipe is located at the bottom end of the flow guide slope.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. With a cleaning mechanism, when filtering impurities in the pulp through the sieve holes of the filter frame, the hydraulic cylinder drives the sliding plate and the annular scraper to scrape the inner wall of the filter frame, pushing out the impurities accumulated in the filter frame, which facilitates cleaning of the inside of the filter frame and improves the pulp washing efficiency during papermaking.

[0016] 2. By using an arc-shaped scraper, which is driven by a drive mechanism, the outer side of the filter frame can be cleaned and scraped, improving the cleaning efficiency of the filter frame and thus improving the washing effect of the filter frame. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of a papermaking washing mechanism according to an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of a papermaking washing mechanism according to an embodiment of the present utility model;

[0020] Figure 3 This is a structural diagram of a cleaning mechanism of a papermaking pulp washing mechanism according to an embodiment of the present utility model;

[0021] Figure 4 This is a structural diagram of the drive mechanism of a papermaking pulp washing mechanism according to an embodiment of the present utility model.

[0022] In the picture:

[0023] 1. Base; 2. Slurry washing shell; 3. Filter frame; 4. Hydraulic cylinder; 5. Cleaning mechanism; 6. Sealing cover; 7. Slurry inlet pipe; 8. Drive mechanism; 9. Arc-shaped scraper; 10. Slurry outlet pipe; 11. Sliding plate; 12. Annular scraper; 13. Drive motor; 14. Stirring rod; 15. Connecting shell; 16. Servo motor; 17. Lead screw; 18. Moving block. Detailed Implementation

[0024] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0025] According to an embodiment of the present invention, a papermaking pulp washing mechanism is provided.

[0026] Example 1

[0027] like Figure 1As shown in Figure 4, a papermaking washing mechanism according to an embodiment of the present invention includes a base 1, a washing shell 2 fixedly connected to the top of the base 1, a filter frame 3 disposed inside the washing shell 2, a hydraulic cylinder 4 installed at one end of the washing shell 2, a cleaning mechanism 5 connected to the output end of the hydraulic cylinder 4, the cleaning mechanism 5 disposed inside the filter frame 3, a sealing cover 6 connected to one end of the filter frame 3, a pulp inlet pipe 7 connected to the sealing cover 6, and a driving mechanism 8 disposed at the top of the washing shell 2. An arc-shaped scraper 9 is connected to the drive mechanism 8. A pulp outlet pipe 10 is connected to the bottom of the pulp washing shell 2. The filter frame 3 is arranged in a ring shape and has screen holes evenly arranged on it. A guide slope is provided at the bottom of the inner cavity of the pulp washing shell 2. The pulp outlet pipe 10 is located at the bottom end of the guide slope. The pulp raw material is injected into the filter frame 3 of the pulp washing shell 2 through the pulp inlet pipe 7. Impurities in the pulp are filtered through the screen holes of the filter frame 3. The filtered pulp is then collected at the pulp outlet pipe 10 through the guide slope.

[0028] Example 2

[0029] like Figure 1-4 As shown, a papermaking pulp washing mechanism according to an embodiment of the present invention includes a base 1, a pulp washing shell 2 fixedly connected to the top of the base 1, a filter frame 3 disposed in the inner cavity of the pulp washing shell 2, a hydraulic cylinder 4 installed at one end of the pulp washing shell 2, a cleaning mechanism 5 connected to the output end of the hydraulic cylinder 4, the cleaning mechanism 5 disposed inside the filter frame 3, a sealing cover 6 connected to one end of the filter frame 3, a pulp inlet pipe 7 connected to the sealing cover 6, a driving mechanism 8 disposed at the top of the pulp washing shell 2, an arc-shaped scraper 9 connected to the driving mechanism 8, and a pulp outlet pipe 10 connected to the bottom of the pulp washing shell 2. The cleaning mechanism 5 includes a sliding plate 11, an annular scraper 12, a drive motor 13, and a stirring rod 1. 4. The drive motor 13 is installed on one side of the sliding plate 11. The output shaft of the drive motor 13 is connected to the stirring rod 14. The annular scraper 12 is disposed on one side of the sliding plate 11 and fits against the inner wall of the filter frame 3. The sealing cover 6 is threaded onto the filter frame 3. During filtration, the drive motor 13 drives the stirring rod 14 to rotate, stirring the slurry and improving the washing efficiency. When cleaning the filter frame 3, the sealing cover 6 is removed from the filter frame 3. The hydraulic cylinder 4 drives the sliding plate 11 and the annular scraper 12 to move. The annular scraper 12 scrapes the inner wall of the filter frame 3, pushing out the impurities accumulated in the filter frame 3, which facilitates the cleaning of the inside of the filter frame 3.

[0030] Example 3

[0031] like Figure 1As shown in Figure 4, a papermaking pulp washing mechanism according to an embodiment of the present invention includes a base 1, a pulp washing shell 2 fixedly connected to the top of the base 1, a filter frame 3 disposed in the inner cavity of the pulp washing shell 2, a hydraulic cylinder 4 installed at one end of the pulp washing shell 2, a cleaning mechanism 5 connected to the output end of the hydraulic cylinder 4, the cleaning mechanism 5 disposed inside the filter frame 3, a sealing cover 6 connected to one end of the filter frame 3, a pulp inlet pipe 7 connected to the sealing cover 6, a driving mechanism 8 disposed at the top of the pulp washing shell 2, an arc-shaped scraper 9 connected to the driving mechanism 8, and a pulp outlet pipe 10 connected to the bottom of the pulp washing shell 2. The drive mechanism 8 includes a connecting housing 15, a servo motor 16, a lead screw 17, and a moving block 18. The connecting housing 15 is fixed to the top of the washing housing 2. The servo motor 16 is installed at one end of the connecting housing 15, and the output shaft of the servo motor 16 is connected to the lead screw 17. The moving block 18 is connected to the lead screw 17, and one end of the moving block 18 is connected to an arc-shaped scraper 9. The arc-shaped scraper 9 is attached to the outside of the filter frame 3. The servo motor 16 of the drive mechanism 8 drives the lead screw 17 to rotate, so that the moving block 18 drives the arc-shaped scraper 9 to scrape the outside of the filter frame 3, thereby improving the cleaning efficiency of the filter frame 3.

[0032] In summary, with the help of the above-mentioned technical solution of this utility model, when using this device to wash paper pulp raw materials, the pulp raw materials are injected into the filter frame 3 of the washing shell 2 through the pulp inlet pipe 7. The impurities in the pulp are filtered through the sieve holes of the filter frame 3. During filtration, the drive motor 13 drives the stirring rod 14 to rotate, which stirs the pulp and improves the washing efficiency. When cleaning the filter frame 3, the sealing cover 6 is removed from the filter frame 3. The hydraulic cylinder 4 drives the sliding plate 11 and the annular scraper 12 to move. The annular scraper 12 scrapes the inner wall of the filter frame 3, pushing out the impurities accumulated in the filter frame 3, which facilitates the cleaning of the inside of the filter frame 3 and improves the washing efficiency during papermaking. At the same time, the servo motor 16 of the drive mechanism 8 drives the lead screw 17 to rotate, which causes the moving block 18 to drive the arc-shaped scraper 9 to scrape the outside of the filter frame 3, improving the cleaning efficiency of the filter frame 3 and thus improving the washing effect of the filter frame 3.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A papermaking washing mechanism comprising a base (1), characterized in that, The top of the base (1) is fixedly connected with a pulp washing shell (2), the inner cavity of the pulp washing shell (2) is provided with a filter frame (3), one end of the pulp washing shell (2) is provided with a hydraulic cylinder (4), the output end of the hydraulic cylinder (4) is connected with a cleaning mechanism (5), the cleaning mechanism (5) is arranged in the filter frame (3), one end of the filter frame (3) is connected with a sealing cover (6), the sealing cover (6) is connected with a pulp inlet pipe (7), the top of the pulp washing shell (2) is provided with a driving mechanism (8), the driving mechanism (8) is connected with an arc-shaped scraper (9), and the bottom of the pulp washing shell (2) is connected with a pulp outlet pipe (10).

2. A papermaking washers mechanism according to claim 1, characterized in that, The filter frame (3) is arranged in an annular shape, and the filter frame (3) is uniformly provided with screen holes.

3. A papermaking washers mechanism according to claim 2, characterized in that, The cleaning mechanism (5) comprises a sliding plate (11), an annular scraper (12), a driving motor (13) and a stirring rod (14), the driving motor (13) is installed on one side of the sliding plate (11), the output shaft of the driving motor (13) is connected with the stirring rod (14), and the annular scraper (12) is arranged on one side of the sliding plate (11).

4. A papermaking washers mechanism according to claim 3, characterized in that, The annular scraper (12) is attached to the inner wall of the filter frame (3), and the sealing cover (6) is threadedly connected to the filter frame (3).

5. A papermaking washers mechanism according to claim 4, characterized in that, The driving mechanism (8) comprises a connecting shell (15), a servo motor (16), a lead screw (17) and a moving block (18), the connecting shell (15) is fixed to the top of the pulp washing shell (2), the servo motor (16) is installed at one end of the connecting shell (15), the output shaft of the servo motor (16) is connected with the lead screw (17), and the moving block (18) is connected to the lead screw (17).

6. A papermaking washers mechanism according to claim 5, characterized in that, One end of the moving block (18) is connected with the arc-shaped scraper (9), and the arc-shaped scraper (9) is attached to the outer side of the filter frame (3).

7. A papermaking washers mechanism according to claim 6, characterized in that, The inner cavity of the pulp washing shell (2) is provided with a flow guide slope, and the pulp outlet pipe (10) is arranged at the bottom end position of the flow guide slope.

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