Filtering equipment of paper machine

Abstract

The invention discloses filtering equipment of a paper machine, and relates to the technical field of papermaking, the filtering equipment comprises an equipment main body, a mounting cylinder, a vertical plate and a filtering box, the inner side of the equipment main body is connected with the filtering plate, the bottom of a material storage box is provided with a discharge port, and the inner side of the material storage box is provided with a plugging mechanism; a connecting plate is fixedly connected to the bottom of the filter plate, a reset mechanism is mounted between the connecting plate and the mounting cylinder, a sliding plate is connected to the bottom of the mounting cylinder, and a toothed plate is fixedly connected to the bottom of the sliding plate; a telescopic mechanism is installed outside the vertical plate, and a deflection mechanism is installed on the inner side of the equipment body. A filter screen is arranged at the bottom of the filter box, an opening is formed outside the equipment body, and a cleaning mechanism is mounted on the inner side of the opening. The device can regulate and control paper pulp discharging, guarantee sufficient filtering and reduce waste, the device has a built-in automatic vibration function, blockage of the filter plate can be effectively cleaned, the vibration strength can be flexibly adjusted according to requirements, in addition, a convenient paper scrap cleaning opening and an automatic reset baffle are designed, sealing is guaranteed, and meanwhile maintenance is simplified.

Description

Technical Field

[0001] The invention relates to the technical field of papermaking, and in particular to a filtering device of a papermaking machine. Background Art

[0002] In the papermaking industry, pulp filtration is a key link in the production process. Its purpose is to effectively separate fibers and impurities (such as paper scraps) in the pulp to ensure the quality of the final paper product. Traditional paper machine filtration equipment mostly uses static filtration, that is, the pulp is directly filtered through a fixed filter. Although this method has a simple structure, when processing a large amount of pulp, it often has problems such as low filtration efficiency, easy clogging of the filter, and large pulp loss. Especially when the content of paper scraps in the pulp is high, the filter clogging phenomenon is particularly serious, which not only affects production efficiency, but also increases maintenance costs and energy consumption.

[0003] In order to solve the above problems, some improvement schemes have emerged in the prior art, such as using mechanical vibration to assist filtration, reducing blockage and improving filtration efficiency by vibrating the filter screen. However, these schemes still have some shortcomings in the implementation process. For example, the control of vibration frequency and amplitude is not precise enough, resulting in unstable filtration effect; the vibration mechanism design is complex, which increases equipment cost and failure rate; and the collection and treatment of paper scraps and filtered slurry is not convenient enough, which affects the automation level of the production line. Therefore, in view of the above technical problems, a filtration device for a papermaking machine is proposed here. Summary of the invention

[0004] The purpose of the present invention is to provide a filtering device for a papermaking machine, which can accurately control the pulp feeding through a motor to ensure sufficient filtration and reduce waste. The device has a built-in automatic vibration function, which can effectively clean the blockage of the filter plate and maintain a high-efficiency filtration state. The vibration intensity can be flexibly adjusted according to needs to enhance adaptability and filtration effect. In addition, it is designed with a convenient paper scrap cleaning port and an automatic reset baffle to ensure sealing while simplifying maintenance.

[0005] The present invention is achieved through the following technical solutions:

[0006] A filtering device for a paper machine, comprising:

[0007] The main body of the equipment has a filter plate fixedly connected to its inner side, and the filter plate is installed in an inclined manner. A feed inlet is provided on the upper side of the main body of the equipment, a material storage box is fixedly connected to the upper side of the main body of the equipment, a discharge port is provided at the bottom of the material storage box, and a blocking mechanism is installed on the inner side of the material storage box;

[0008] A mounting cylinder is mounted on the lower side of the filter plate, a connecting plate is fixedly connected to the bottom of the filter plate, a reset mechanism is installed between the connecting plate and the mounting cylinder, a slide plate is slidably connected to the bottom of the mounting cylinder, and a tooth plate is fixedly connected to the bottom of the slide plate;

[0009] A vertical plate, which is fixedly connected to the bottom of the mounting tube, a telescopic mechanism is installed on the outside of the vertical plate, and a deflection mechanism is installed on the inside of the device body;

[0010] A filter box is fixedly connected to the bottom end of the filter plate, and the filter box is fixedly connected to the inner wall of the equipment body. A drainage hole is provided at the connection between the filter box and the filter plate, a filter screen is provided at the bottom of the filter box, and an opening is provided on the outside of the equipment body, and a cleaning mechanism is installed on the inner side of the opening.

[0011] Preferably, the blocking mechanism includes a rotating column, a rotating disk and a through hole, the rotating column is rotatably connected to the inner side of the material storage box, the rotating disk is fixedly connected to the outside of the rotating column, and the rotating disk and the material storage box are slidably connected, the through hole is opened at the bottom of the rotating disk, and the positions of the feed port, the discharge port and the through hole correspond to each other.

[0012] Preferably, a feed pipe is fixedly connected to the upper side of the material storage box, a limit ring is fixedly connected to the inner side of the material storage box, and a through hole is slidably connected to the bottom of the limit ring, a first motor and a protective shell are fixedly connected to the inner top of the equipment body, and the rotating column and the first motor are fixedly connected, and the first motor is located inside the protective shell.

[0013] Preferably, the reset mechanism includes a tension spring and a telescopic rod, and the tension spring and the telescopic rod are fixedly connected between the mounting tube and the connecting plate.

[0014] Preferably, a slide groove is provided on the upper side of the slide plate, a sliding block is fixedly connected to the bottom of the mounting tube, and the sliding block is slidably connected to the inner side of the slide groove.

[0015] Preferably, the telescopic mechanism includes a connecting plate, a second motor, a rotating shaft and a gear, the connecting plate is fixedly connected between the two groups of vertical plates, the second motor is fixedly connected to the outside of the vertical plate, the rotating shaft and the second motor are fixedly connected, and the rotating shaft and the connecting plate are rotatably connected, the gear is fixedly connected to the outside of the rotating shaft, and the gear is meshed with the gear plate.

[0016] Preferably, the deflection mechanism includes a rotating rod and a rotating plate, the rotating rod is rotatably connected to the inner side of the device body, the rotating plate is fixedly connected to the outside of the rotating rod, and the rotating rod and the slide plate are abutted against each other, the outside of the device body is fixedly connected to a third motor, and the rotating rod and the third motor are fixedly connected.

[0017] Preferably, the cleaning mechanism includes a baffle, a mounting plate and a spring, the baffle is rotatably connected to the inner side of the opening, the mounting plate is fixedly connected to the inner side of the filter box, and the spring is fixedly connected between the baffle and the mounting plate.

[0018] Preferably, a positioning plate is fixedly connected to the inner side of the opening, and the positioning plate abuts against the end of the baffle.

[0019] Preferably, a water pump is fixedly connected to the inner bottom of the device body, a conduit is fixedly connected to the outside of the water pump, and the conduit extends out of the device body.

[0020] The technical solution of the present invention has at least the following beneficial effects:

[0021] 1. The filtering device of the paper machine, when using this device to filter pulp and paper scraps, firstly, the pulp is stored in the storage box through the feed pipe, and then the first motor can be operated to rotate the rotating column, and the rotating disk will rotate accordingly, and the through hole is aligned with the discharge port, and the pulp inside the storage box can be put into the main body of the equipment from the discharge port through the feed port, and contacted with the inclined filter plate for filtration. When a certain amount of pulp is discharged, the first motor can be operated in time to move the through hole above the discharge port, so that a small amount of slurry can be discharged at one time for filtration, avoiding excessive slurry input and inability to fully filter, resulting in slurry loss.

[0022] 2. The filtering equipment of the papermaking machine, when the filter plate is used to filter and screen the pulp, the third motor can be operated at this time to make the rotating rod drive the rotating plate to rotate. Since the rotating plate is in contact with the slide plate, the slide plate can drive the mounting tube to move downward as a whole, and at the same time stretch the telescopic rod and the tension spring. When the rotating plate continues to rotate and separates from the slide plate, the tension of the tension spring will drive the mounting tube to quickly hit the connecting plate, thereby achieving a vibration effect on the filter plate, shaking out the paper scraps blocked on the surface of the filter plate and transporting them to the filter box for collection, thereby ensuring the integrity of the filter plate's function of filtering paper scraps in the pulp. At the same time, if it is necessary to adjust the vibration force, the second motor can be operated to drive the rotating shaft to rotate the gear. Since the gear is meshed with the toothed plate at the bottom of the slide plate, the slide plate and the mounting tube can slide relative to each other, extend or contract, so that the mounting tube can be moved to a farther position and then reset and hit, thereby achieving the effect of increasing the vibration force.

[0023] 3. When the filter plate of the paper machine is vibrated and unblocked, not only will paper scraps fall into the filter box through the drainage hole, but the slurry on the filter plate will also flow into the filter box. At this time, the slurry flowing into the filter box will be filtered through the filter screen at the bottom, while the paper scraps will remain in the filter box. When the paper scraps accumulate to a certain extent, the baffle at the opening can be pulled to clean the paper scraps inside the filter box. At the same time, the spring will be stretched when the baffle is pulled open. Therefore, when the inside of the filter box is completely cleaned, the baffle can be released to reset it under the tension of the spring, and it can be accurately positioned through the positioning plate to ensure the sealing between the filter box and the outside world. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 for Figure 1 A magnified view of middle;

[0026] Figure 3 for Figure 1 Enlarged view of middle B;

[0027] Figure 4 It is a schematic diagram of the first partial structure of the present invention;

[0028] Figure 5 for Figure 4 Enlarged view of middle C;

[0029] Figure 6 It is a schematic diagram of a second partial structure of the present invention;

[0030] Figure 7 for Figure 6 Enlarged view of middle D;

[0031] Figure 8 for Figure 1 Enlarged view of E in the middle;

[0032] Icons: 1. Equipment body; 2. Filter plate; 3. Feed inlet; 4. Storage box; 5. Feed pipe; 6. Discharge port; 7. Rotating column; 8. Rotating disk; 9. Through hole; 10. Limiting ring; 11. First motor; 12. Protective shell; 13. Mounting cylinder; 14. Connecting plate; 15. Tension spring; 16. Telescopic rod; 17. Slide plate; 18. Slide groove; 19. Slider; 20. Tooth plate; 21. Vertical plate; 22. Connecting plate; 23. Second motor; 24. Rotating shaft; 25. Gear; 26. Third motor; 27. Rotating rod; 28. Rotating plate; 29. ​​Filter box; 30. Drain hole; 31. Filter screen; 32. Opening; 33. Baffle; 34. Mounting plate; 35. Spring; 36. Positioning plate; 37. Water pump; 38. Conduit. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0034] Example

[0035] See also Figure 1-8The present application proposes a filtering device for a papermaking machine, comprising a device body 1, a mounting cylinder 13, a vertical plate 21 and a filter box 29. A filter plate 2 is fixedly connected to the inner side of the device body 1, and the filter plate 2 is installed at an angle. The filter plate 2 is installed at an angle to facilitate pulp filtering. A feed inlet 3 is provided on the upper side of the device body 1, a storage box 4 is fixedly connected to the upper side of the device body 1, a discharge port 6 is provided at the bottom of the storage box 4, and a blocking mechanism is installed on the inner side of the storage box 4; the mounting cylinder 13 is installed on the lower side of the filter plate 2, a connecting plate 14 is fixedly connected to the bottom of the filter plate 2, and a complex is installed between the connecting plate 14 and the mounting cylinder 13. The bottom of the mounting cylinder 13 is slidably connected with a slide plate 17, and the bottom of the slide plate 17 is fixedly connected with a tooth plate 20; the vertical plate 21 is fixedly connected to the bottom of the mounting cylinder 13, and the outside of the vertical plate 21 is installed with a telescopic mechanism, and the inside of the equipment body 1 is installed with a deflection mechanism; the filter box 29 is fixedly connected to the bottom of the end of the filter plate 2, and the filter box 29 is fixedly connected to the inner wall of the equipment body 1, a drainage hole 30 is opened at the connection between the filter box 29 and the filter plate 2, a filter screen 31 is opened at the bottom of the filter box 29, an opening 32 is opened on the outside of the equipment body 1, and a cleaning mechanism is installed on the inside of the opening 32.

[0036] The blocking mechanism includes a rotating column 7, a rotating disk 8 and a through hole 9. The rotating column 7 is rotatably connected to the inner side of the material storage box 4, the rotating disk 8 is fixedly connected to the outside of the rotating column 7, and the rotating disk 8 and the material storage box 4 are slidably connected. The through hole 9 is opened at the bottom of the rotating disk 8, and the positions of the feed port 3, the discharge port 6 and the through hole 9 are corresponding. The closing of the discharge port 6 can be achieved by the blocking mechanism.

[0037] A feed pipe 5 is fixedly connected to the upper side of the material storage box 4, a limit ring 10 is fixedly connected to the inner side of the material storage box 4, and the through hole 9 is slidably connected to the bottom of the limit ring 10, a first motor 11 and a protective shell 12 are fixedly connected to the inner top of the equipment body 1, and the rotating column 7 is fixedly connected to the first motor 11, and the first motor 11 is located inside the protective shell 12, and the rotation of the rotating column 7 can be controlled by running the first motor 11.

[0038] The reset mechanism includes a tension spring 15 and a telescopic rod 16 . The tension spring 15 and the telescopic rod 16 are fixedly connected between the installation tube 13 and the connecting plate 14 . The reset mechanism is provided to facilitate the installation tube 13 to hit the connecting plate 14 .

[0039] A slide groove 18 is provided on the upper side of the slide plate 17, a slider 19 is fixedly connected to the bottom of the mounting tube 13, and the slider 19 is slidably connected to the inner side of the slide groove 18. The slider 19 and the slide groove 18 can realize limited sliding between the mounting tube 13 and the slide plate 17.

[0040] The telescopic mechanism includes a connecting plate 22, a second motor 23, a rotating shaft 24 and a gear 25. The connecting plate 22 is fixedly connected between the two sets of vertical plates 21, the second motor 23 is fixedly connected to the outside of the vertical plate 21, the rotating shaft 24 and the second motor 23 are fixedly connected, and the rotating shaft 24 and the connecting plate 22 are rotatably connected, the gear 25 is fixedly connected to the outside of the rotating shaft 24, and the gear 25 is meshed with the toothed plate 20.

[0041] The deflection mechanism includes a rotating rod 27 and a rotating plate 28. The rotating rod 27 is rotatably connected to the inner side of the device body 1, and the rotating plate 28 is fixedly connected to the outside of the rotating rod 27, and the rotating rod 27 is abutted against the slide plate 17. The outside of the device body 1 is fixedly connected to a third motor 26, and the rotating rod 27 and the third motor 26 are fixedly connected.

[0042] The cleaning mechanism includes a baffle 33, a mounting plate 34 and a spring 35. The baffle 33 is rotatably connected to the inner side of the opening 32, the mounting plate 34 is fixedly connected to the inner side of the filter box 29, the spring 35 is fixedly connected between the baffle 33 and the mounting plate 34, and a positioning plate 36 is fixedly connected to the inner side of the opening 32, and the positioning plate 36 abuts against the end of the baffle 33. The positioning plate 36 can limit and position the baffle 33.

[0043] A water pump 37 is fixedly connected to the inner bottom of the equipment body 1, and a conduit 38 is fixedly connected to the outside of the water pump 37, and the conduit 38 extends out of the equipment body 1. After the pulp is filtered, the water pump 37 can be operated to output the filtered pulp to the outside of the equipment through the conduit 38.

[0044] The working principle of the filtering device of the papermaking machine based on the embodiment is that when using this device to filter pulp and paper scraps, first, the pulp is stored in the storage box 4 through the feed pipe 5, and then the first motor 11 can be operated to rotate the rotating column 7, and the rotating disk 8 will rotate accordingly, and the through hole 9 is aligned with the discharge port 6, so that the pulp inside the storage box 4 can be put into the equipment body 1 through the discharge port 6 through the feed port 3, and contact with the inclined filter plate 2 for filtration. When a certain amount of pulp is discharged, the first motor 11 can be operated in time to move the through hole 9 away from the discharge port 6, so that a small amount of slurry can be discharged at one time for filtration, avoiding the loss of slurry caused by too much slurry being unable to be fully filtered;

[0045] When the filter plate 2 is used to filter and screen the pulp, the third motor 26 can be operated to make the rotating rod 27 drive the rotating plate 28 to rotate. Since the rotating plate 28 is in contact with the slide plate 17, the slide plate 17 can drive the mounting tube 13 to move downward as a whole, and at the same time stretch the telescopic rod 16 and the tension spring 15. When the rotating plate 28 continues to rotate and disengages from the slide plate 17, the tension of the tension spring 15 will drive the mounting tube 13 to quickly hit the connecting plate 14, so as to achieve the vibration effect on the filter plate 2, and shake out the paper scraps blocked on the surface of the filter plate 2 and transport them to the filter box 29 for collection, thereby ensuring the integrity of the paper scraps filtering function of the filter plate 2 in the pulp. At the same time, if it is necessary to adjust the vibration force, the second motor 23 can be operated to make the rotating shaft 24 drive the gear 25 to rotate. Since the gear 25 is meshed with the tooth plate 20 at the bottom of the slide plate 17, the slide plate 17 and the mounting tube 13 can slide relative to each other, extend or shrink, so that the mounting tube 13 can be moved to a farther position and then reset and hit, thereby achieving the effect of increasing the vibration force.

[0046] When the filter plate 2 is vibrated and dredged, not only will paper scraps fall into the filter box 29 through the drainage hole 30, but the slurry contaminated on the filter plate 2 will also flow into the filter box 29. At this time, the slurry flowing into the filter box 29 will be filtered through the filter screen 31 at the bottom, while the paper scraps will remain in the filter box 29. When the paper scraps accumulate to a certain extent, the baffle 33 at the opening 32 can be pulled to clean the paper scraps inside the filter box 29. At the same time, the spring 35 will be stretched when the baffle 33 is pulled open. Therefore, when the inside of the filter box 29 is completely cleaned, the baffle 33 can be loosened to reset it under the pulling force of the spring 35, and it can be accurately positioned through the positioning plate 36 to ensure the sealing of the filter box 29 with the outside world.

[0047] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A filtering device for a paper machine, characterized in that: include: The device body (1) has a filter plate (2) fixedly connected to its inner side, and the filter plate (2) is installed in an inclined manner. A feed inlet (3) is provided on the upper side of the device body (1). A material storage box (4) is fixedly connected to the upper side of the device body (1). A discharge port (6) is provided at the bottom of the material storage box (4). A blocking mechanism is installed on the inner side of the material storage box (4); A mounting cylinder (13) is mounted on the lower side of the filter plate (2); a connecting plate (14) is fixedly connected to the bottom of the filter plate (2); a reset mechanism is installed between the connecting plate (14) and the mounting cylinder (13); a slide plate (17) is slidably connected to the bottom of the mounting cylinder (13); a tooth plate (20) is fixedly connected to the bottom of the slide plate (17); A vertical plate (21) is fixedly connected to the bottom of the mounting tube (13), a telescopic mechanism is installed on the outside of the vertical plate (21), and a deflection mechanism is installed on the inside of the device body (1); A filter box (29) is fixedly connected to the bottom end of the filter plate (2), and the filter box (29) is fixedly connected to the inner wall of the device body (1). A drainage hole (30) is provided at the connection between the filter box (29) and the filter plate (2). A filter screen (31) is provided at the bottom of the filter box (29). An opening (32) is provided on the outside of the device body (1), and a cleaning mechanism is installed on the inner side of the opening (32).

2. The filtering device for a paper machine according to claim 1, characterized in that: The blocking mechanism comprises a rotating column (7), a rotating disk (8) and a through hole (9); the rotating column (7) is rotatably connected to the inner side of the material storage box (4); the rotating disk (8) is fixedly connected to the outside of the rotating column (7); and the rotating disk (8) and the material storage box (4) are slidably connected; the through hole (9) is provided at the bottom of the rotating disk (8); and the positions of the feed port (3), the discharge port (6) and the through hole (9) are all corresponding.

3. The filtering device for a paper machine according to claim 2, characterized in that: The upper side of the material storage box (4) is fixedly connected to a feed pipe (5), the inner side of the material storage box (4) is fixedly connected to a limit ring (10), and the through hole (9) is slidably connected to the bottom of the limit ring (10), the inner top of the device body (1) is fixedly connected to a first motor (11) and a protective shell (12), and the rotating column (7) is fixedly connected to the first motor (11), and the first motor (11) is located inside the protective shell (12).

4. The filtering device for a paper machine according to claim 1, characterized in that: The reset mechanism comprises a tension spring (15) and a telescopic rod (16), and the tension spring (15) and the telescopic rod (16) are fixedly connected between the mounting tube (13) and the connecting plate (14).

5. The filtering device for a paper machine according to claim 1, characterized in that: A slide groove (18) is provided on the upper side of the slide plate (17), a slider (19) is fixedly connected to the bottom of the mounting tube (13), and the slider (19) is slidably connected to the inner side of the slide groove (18).

6. The filtering device for a paper machine according to claim 1, characterized in that: The telescopic mechanism comprises a connecting plate (22), a second motor (23), a rotating shaft (24) and a gear (25); the connecting plate (22) is fixedly connected between the two groups of vertical plates (21); the second motor (23) is fixedly connected to the outside of the vertical plate (21); the rotating shaft (24) and the second motor (23) are fixedly connected, and the rotating shaft (24) and the connecting plate (22) are rotatingly connected; the gear (25) is fixedly connected to the outside of the rotating shaft (24), and the gear (25) is meshed with the toothed plate (20).

7. The filtering device for a paper machine according to claim 1, characterized in that: The deflection mechanism comprises a rotating rod (27) and a rotating plate (28); the rotating rod (27) is rotatably connected to the inner side of the device body (1); the rotating plate (28) is fixedly connected to the outside of the rotating rod (27); the rotating rod (27) and the slide plate (17) are in contact with each other; the outside of the device body (1) is fixedly connected to a third motor (26); and the rotating rod (27) and the third motor (26) are fixedly connected.

8. The filtering device for a paper machine according to claim 1, characterized in that: The cleaning mechanism comprises a baffle (33), a mounting plate (34) and a spring (35); the baffle (33) is rotatably connected to the inner side of the opening (32); the mounting plate (34) is fixedly connected to the inner side of the filter box (29); and the spring (35) is fixedly connected between the baffle (33) and the mounting plate (34).

9. The filtering device for a paper machine according to claim 8, characterized in that: A positioning plate (36) is fixedly connected to the inner side of the opening (32), and the positioning plate (36) abuts against the end of the baffle (33).

10. The filtering device for a paper machine according to claim 1, characterized in that: A water pump (37) is fixedly connected to the inner bottom of the device body (1), a conduit (38) is fixedly connected to the outside of the water pump (37), and the conduit (38) extends out of the device body (1).

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