Device for collecting and filtering wood fibers in paper pulp wastewater for papermaking

Abstract

The utility model discloses a device for collecting and filtering wood fibers in paper pulp wastewater for papermaking, which relates to the technical field of paper pulp filtration and comprises a filter box, a filter screen is arranged in the middle of the inside of the filter box, two groups of U-shaped connecting rods are arranged at the upper end of the rear side of the filter screen, and a push plate is arranged at the other ends of the two groups of U-shaped connecting rods. The push plate is mounted on the outer side of the filter box, a threaded rod is arranged at the lower end of the push plate, a threaded sleeve is arranged at the lower end of the threaded rod, a driving box is arranged below the threaded sleeve, a driven gear is arranged on the outer wall of the lower end of the threaded sleeve in the driving box, and a driving gear is arranged on the side wall of the driven gear; a second motor is arranged at the lower end of the driving gear. According to the device for collecting and filtering the wood fibers in the paper pulp wastewater for papermaking, the filter screen in the filter box can be automatically lifted, cleaning is convenient, and the filtering process is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of paper pulp filtering, in particular to a device for collecting and filtering wood fibers in paper pulp wastewater used for papermaking. Background Art

[0002] The papermaking industry is an industrial sector that uses chemical or mechanical methods to separate plant fibers into pulp, and then interweaves them into paper or paperboard. The development of papermaking machinery affects the rapid progress of the entire papermaking industry. Papermaking machinery includes raw material preparation, pulping, papermaking, and until it is made into rolls or flat sheets of finished products and processed paper and paperboard. In order to avoid waste of resources, the wood fibers in the pulp wastewater need to be filtered and collected during the papermaking process.

[0003] The existing wastewater filtering device generally uses the sedimentation filtration method when filtering wastewater. This method consumes too long a time and has a low filtration efficiency for wastewater. The use of screen filtration also requires people to manually clean the wood fibers filtered on the screen, which is troublesome to operate and has a certain adverse effect on the pulp wastewater filtration process. In order to solve the shortcomings of the existing technology, we propose a wood fiber collection and filtration device for papermaking pulp wastewater. Utility Model Content

[0004] The main purpose of the utility model is to provide a device for collecting and filtering wood fibers in paper pulp wastewater for papermaking, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] The filter screen is provided in the middle of the filter box, and two sets of U-shaped connecting rods are provided at the upper end of the rear side of the filter screen. The other ends of the two sets of U-shaped connecting rods are provided with push plates. The push plates are installed on the outer side of the filter box. The lower ends of the push plates are provided with threaded rods, and the lower ends of the threaded rods are provided with threaded sleeves, and the threaded rods are threadedly connected with the threaded sleeves. A drive box is provided below the threaded sleeve, and two sets of telescopic rods are further provided between the push plate and the drive box. A driven gear is provided on the outer wall of the lower end of the threaded sleeve inside the drive box, and a driving gear is provided on the side wall of the driven gear. A second motor is provided at the lower end of the driving gear, and an installation interface is provided between the second motor and the drive box, and the second motor is detachably connected to the drive box through the provided installation interface.

[0007] Preferably, sliding rails are provided above the inner walls on both sides of the filter box, sliding blocks are provided in the middle of the two groups of sliding rails, the sliding blocks are slidably connected to the sliding rails, a moving rod is provided between the two groups of sliding blocks, a scraper is provided at the lower end of the moving rod, a screw rod is provided in the middle of one group of sliding blocks, a No. 1 motor is provided at the front end of the side wall of the filter box, a connecting port is provided between the No. 1 motor and the screw rod, the No. 1 motor is detachably connected to the screw rod through the provided connecting port, and a collecting box is also provided at the front end of the filter box.

[0008] Preferably, a connecting port is provided between the filter screen and the U-shaped connecting rod, and the filter screen is detachably connected to the U-shaped connecting rod through the provided connecting port, the push plate is fixedly connected to the U-shaped connecting rod, and a connecting port is provided between the push plate and the threaded rod, and the push plate is detachably connected to the threaded rod through the provided connecting port.

[0009] Preferably, a rotating interface is provided between the threaded sleeve and the drive box, and the threaded sleeve is rotatably connected to the drive box via the rotating interface; a rotating shaft is provided between the driving gear and the inner wall of the drive box, and the driving gear is rotatably connected to the inner wall of the drive box via the rotating shaft.

[0010] Preferably, a threaded interface is provided between the screw rod and the sliding block, and the screw rod is detachably connected to the sliding block via the provided threaded interface. A rotating bearing is provided between the end of the screw rod and the inner wall of the sliding track, and the screw rod is rotatably connected to the inner wall of the sliding track via the provided rotating bearing.

[0011] Preferably, a connecting port is provided between the moving rod and the sliding block, and the moving rod is detachably connected to the sliding block through the provided connecting port.

[0012] Beneficial Effects

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. In the utility model, through the U-shaped connecting rod, the push plate and the driving box, the device can automatically lift the filter screen inside the filter box, which is convenient for cleaning. The filter screen is used to filter the wood fiber in the pulp wastewater, which takes less time than the sedimentation filtration method and has higher filtering operation efficiency, and does not require people to manually lift the filter screen in the middle of the filter box, so that the movement of the filter screen in the middle of the filter box is more automated and more convenient. The pulp wastewater is put into the interior of the filter box, and then the No. 2 motor inside the driving box is started, and the threaded sleeve is driven to rotate at the upper end of the driving box through the active gear and the driven gear. When the threaded sleeve rotates, the threaded rod moves up and down at the upper end of the threaded sleeve due to the limitation of the telescopic rod, and at the same time drives the push plate to move up and down. The push plate drives the filter screen to move up and down in the middle of the filter box through two sets of U-shaped connecting rods, and the filter screen is lifted or put down, which is convenient for filtering work and makes the filtering operation of pulp wastewater more convenient.

[0015] 2. In the utility model, through the sliding track, sliding block, moving rod and scraper, the device can automatically clean the wood fiber filtered on the upper end of the filter screen, so that the operation of pulp wastewater filtering is more convenient and automated, and the collection efficiency of wood fiber in pulp wastewater is higher. After the filter screen is lifted, the upper end of the filter screen contacts the scraper, and the No. 1 motor at the front end of the filter box is started, driving the screw rod to rotate inside the sliding track. When the screw rod rotates, the sliding block will move on the outer wall of the screw rod and slide in the middle of the sliding track at the same time, and drive the moving rod to move on the upper end of the filter box. The scraper at the lower end of the moving rod can clean up the wood fiber filtered from the upper end of the filter screen and drop it into the collection box for collection, making the filtering and collecting process of wood fiber in pulp wastewater very convenient and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the filter screen connection structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the push plate connection structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the scraper connection structure of the utility model.

[0020] In the figure: 1. filter box; 2. sliding track; 3. sliding block; 4. No. 1 motor; 5. moving rod; 6. collecting box; 7. U-shaped connecting rod; 8. driving box; 9. push plate; 10. filter screen; 11. threaded rod; 12. threaded sleeve; 13. driven gear; 14. driving gear; 15. No. 2 motor; 16. telescopic rod; 17. screw rod; 18. scraper. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figure 1-4 As shown, a device for collecting and filtering wood fibers in paper pulp wastewater for papermaking comprises a filter box 1, the pulp wastewater is filtered inside the filter box 1, a filter screen 10 is arranged in the middle of the filter box 1, the filter screen 10 is used to filter the wood fibers in the pulp wastewater, two groups of U-shaped connecting rods 7 are arranged on the upper end of the rear side of the filter screen 10, the U-shaped connecting rods 7 are used to lift the filter screen 10 from the inside of the filter box 1, and a push plate 9 is arranged at the other end of the two groups of U-shaped connecting rods 7, the two groups of U-shaped connecting rods 7 are fixedly connected to the push plate 9, the push plate 9 is installed on the outside of the filter box 1, and a screw is arranged at the lower end of the push plate 9. The threaded rod 11 can push the push plate 9 to move upward. The lower end of the threaded rod 11 is provided with a threaded sleeve 12. The threaded rod 11 is threadedly connected with the threaded sleeve 12. A driving box 8 is provided below the threaded sleeve 12. A rotating interface is provided between the threaded sleeve 12 and the driving box 8. The threaded sleeve 12 can rotate at the upper end of the driving box 8. Two sets of telescopic rods 16 are also provided between the push plate 9 and the driving box 8. The telescopic rods 16 can be telescopically movable. When the threaded sleeve 12 rotates, the telescopic rods 16 can limit the threaded rod 11 to prevent the threaded rod 11 from rotating with the threaded sleeve 12 The threaded rod 11 can move up and down on the upper end of the threaded sleeve 12, driving the push plate 9 to move up and down. The outer wall of the lower end of the threaded sleeve 12 is provided with a driven gear 13 inside the driving box 8. The driven gear 13 is fixed to the outer wall of the threaded sleeve 12, which can drive the threaded sleeve 12 to rotate. The side wall of the driven gear 13 is provided with a driving gear 14. The driving gear 14 can drive the driven gear 13 to rotate. The lower end of the driving gear 14 is provided with a second motor 15. The second motor 15 drives the driving gear 14 to rotate. An installation interface is provided between the second motor 15 and the driving box 8. The No. 1 motor 15 is detachably connected to the drive box 8 through the provided installation interface. The waste water of pulp is put into the filter box 1, and then the No. 2 motor 15 inside the drive box 8 is started, and the threaded sleeve 12 is driven to rotate at the upper end of the drive box 8 through the driving gear 14 and the driven gear 13. When the threaded sleeve 12 rotates, the threaded rod 11 moves up and down at the upper end of the threaded sleeve 12 due to the limitation of the telescopic rod 16, and at the same time drives the push plate 9 to move up and down. The push plate 9 drives the filter screen 10 to move up and down in the middle of the filter box 1 through two sets of U-shaped connecting rods 7 to lift or put down the filter screen 10.

[0023] like Figure 1-4As shown, sliding rails 2 are arranged above the inner walls of both sides of the filter box 1, and sliding blocks 3 are arranged in the middle of the two groups of sliding rails 2. The sliding blocks 3 are slidably connected to the sliding rails 2. A moving rod 5 is arranged between the two groups of sliding blocks 3. The moving rod 5 is slidably connected to the sliding rails 2 through the arranged sliding blocks 3. A scraper 18 is arranged at the lower end of the moving rod 5. The scraper 18 moves through the moving rod 5 to clean the wood fibers filtered at the upper end of the filter screen 10. A screw rod 17 is arranged in the middle of a group of sliding blocks 3. A threaded interface is arranged between the screw rod 17 and the sliding block 3. A rotating bearing is arranged between the end of the screw rod 17 and the inner wall of the sliding block 3. When the screw rod 17 rotates, the sliding block 3 will move on the outer wall of the screw rod 17 and slide in the middle of the sliding rail 2 at the same time. A No. 1 motor is arranged at the front end of the side wall of the filter box 1 4. A connection port is provided between the No. 1 motor 4 and the screw rod 17. The No. 1 motor 4 is detachably connected to the screw rod 17 through the provided connection port. The No. 1 motor 4 drives the screw rod 17 to rotate. A collecting box 6 is also provided at the front end of the filter box 1. The collecting box 6 is used to collect wood fibers filtered by the filter screen 10. After the filter screen 10 is lifted, the upper end of the filter screen 10 contacts the scraper 18. The No. 1 motor 4 at the front end of the filter box 1 is started, driving the screw rod 17 to rotate inside the sliding track 2. When the screw rod 17 rotates, the sliding block 3 moves on the outer wall of the screw rod 17 and slides in the middle of the sliding track 2 at the same time, and drives the moving rod 5 to move at the upper end of the filter box 1. The scraper 18 at the lower end of the moving rod 5 can clean up the wood fibers filtered from the upper end of the filter screen 10 and drop them into the collecting box 6 for collection.

[0024] It should be noted that the utility model is a device for collecting and filtering wood fibers in wastewater from paper pulp for papermaking. When in use, wastewater from the paper pulp is put into the filter box 1, and then the No. 2 motor 15 inside the drive box 8 is started, and the threaded sleeve 12 is driven to rotate at the upper end of the drive box 8 through the driving gear 14 and the driven gear 13. When the threaded sleeve 12 rotates, the threaded rod 11 moves up and down at the upper end of the threaded sleeve 12 due to the restriction of the telescopic rod 16, and at the same time drives the push plate 9 to move up and down. The push plate 9 drives the filter screen 10 in the filter box through two sets of U-shaped connecting rods 7. 1 moves upward to lift the filter 10. After the filter 10 is lifted, the upper end of the filter 10 contacts the scraper 18, and the No. 1 motor 4 at the front end of the filter box 1 is started to drive the screw rod 17 to rotate inside the sliding track 2. When the screw rod 17 rotates, the sliding block 3 moves on the outer wall of the screw rod 17 and slides in the middle of the sliding track 2, and drives the moving rod 5 to move at the upper end of the filter box 1. The scraper 18 at the lower end of the moving rod 5 can clean up the wood fibers filtered from the upper end of the filter 10 and drop them into the collection box 6 for collection.

[0025] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A device for collecting and filtering wood fibers in papermaking wastewater, comprising a filter box (1), characterized in that: A filter screen (10) is arranged in the middle of the filter box (1), two groups of U-shaped connecting rods (7) are arranged at the upper end of the rear side of the filter screen (10), and a push plate (9) is arranged at the other end of the two groups of U-shaped connecting rods (7), and the push plate (9) is installed on the outside of the filter box (1), and a threaded rod (11) is arranged at the lower end of the push plate (9), and a threaded sleeve (12) is arranged at the lower end of the threaded rod (11), and the threaded rod (11) is threadedly connected to the threaded sleeve (12), and a drive screw is arranged below the threaded sleeve (12). The invention relates to a driving box (8), wherein two sets of telescopic rods (16) are further arranged between the push plate (9) and the driving box (8), a driven gear (13) is arranged on the outer wall of the lower end of the threaded sleeve (12) inside the driving box (8), a driving gear (14) is arranged on the side wall of the driven gear (13), a second motor (15) is arranged at the lower end of the driving gear (14), a mounting interface is arranged between the second motor (15) and the driving box (8), and the second motor (15) is detachably connected to the driving box (8) through the arranged mounting interface.

2. The device for collecting and filtering wood fibers in papermaking pulp wastewater according to claim 1, characterized in that: Sliding rails (2) are arranged above the inner walls on both sides of the filter box (1), and sliding blocks (3) are arranged in the middle of the two groups of sliding rails (2). The sliding blocks (3) are slidably connected to the sliding rails (2). A moving rod (5) is arranged between the two groups of sliding blocks (3), and a scraper (18) is arranged at the lower end of the moving rod (5). A screw rod (17) is arranged in the middle of one group of sliding blocks (3). A No. 1 motor (4) is arranged at the front end of the side wall of the filter box (1), and a connecting port is arranged between the No. 1 motor (4) and the screw rod (17). The No. 1 motor (4) is detachably connected to the screw rod (17) through the arranged connecting port. A collecting box (6) is also arranged at the front end of the filter box (1).

3. The device for collecting and filtering wood fibers in papermaking pulp wastewater according to claim 1, characterized in that: A connection port is provided between the filter screen (10) and the U-shaped connecting rod (7), and the filter screen (10) is detachably connected to the U-shaped connecting rod (7) via the provided connection port; the push plate (9) is fixedly connected to the U-shaped connecting rod (7); a connection port is provided between the push plate (9) and the threaded rod (11), and the push plate (9) is detachably connected to the threaded rod (11) via the provided connection port.

4. The device for collecting and filtering wood fibers in papermaking pulp wastewater according to claim 1, characterized in that: A rotation interface is provided between the threaded sleeve (12) and the drive box (8), and the threaded sleeve (12) is rotationally connected to the drive box (8) via the rotation interface. A rotation shaft is provided between the driving gear (14) and the inner wall of the drive box (8), and the driving gear (14) is rotationally connected to the inner wall of the drive box (8) via the rotation shaft.

5. The device for collecting and filtering wood fibers in papermaking pulp wastewater according to claim 2, characterized in that: A threaded interface is provided between the screw rod (17) and the sliding block (3), and the screw rod (17) is detachably connected to the sliding block (3) via the provided threaded interface. A rotating bearing is provided between the end of the screw rod (17) and the inner wall of the sliding track (2), and the screw rod (17) is rotatably connected to the inner wall of the sliding track (2) via the provided rotating bearing.

6. The device for collecting and filtering wood fibers in papermaking pulp wastewater according to claim 2, characterized in that: A connection port is provided between the moving rod (5) and the sliding block (3), and the moving rod (5) is detachably connected to the sliding block (3) via the provided connection port.

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