A staged filtration device for a glass fiber slurry circulation system

Abstract

The application discloses a kind of glass fiber slurry circulating system's grading filter device, it is related to glass fiber production technical field.The cyclone is included, output pipe is set in the upper cyclone, and the output end of output pipe is provided with filter mechanism one, the right side of filter mechanism one is provided with filter mechanism two, and the right side of filter mechanism two is provided with filter mechanism three.The device forms grading filter structure by cyclone, filter mechanism one, filter mechanism two and filter mechanism three, and cyclone is primarily removed by centrifugal force Heavyweight rubber chip, filter mechanism one and filter mechanism two cooperate with each other, and be especially used for intercepting and processing filamentous broken glass fiber, and filter mechanism three uses ceramic filter membrane, and the final fine filter is carried out to smaller rubber chip and microsuspension substance.Through the synergistic effect of multiple filter structures, different particle sizes, different morphological impurities are separated gradually, and the high cleanliness of circulating slurry is ensured.

Description

Technical Field

[0001] This invention relates to the field of glass fiber production technology, and in particular to a graded filtration device for a glass fiber slurry circulation system. Background Technology

[0002] After glass fiber production and dehydration, the production white water containing trace amounts of solutes and fine suspended matter is separated. After unified collection and reflux, it is transported again to the pulp preparation, pulp mixing and pipeline replenishment stations to continuously participate in pulp preparation, concentration adjustment and system replenishment. This realizes the uninterrupted recycling of process white water and various functional liquid phase agents, which can stabilize the pulp liquid phase ratio, reduce the consumption of water and chemical agents, and maintain the overall stability of the pulp liquid phase system. Solid phase glass fiber only relies on liquid phase fluid to complete the transportation and circulation.

[0003] With long-term circulation of the liquid carrier, two types of impurities—filamentous glass fiber fragments and blocky coated rubber debris—will continuously mix into the circulating white water and various liquid reagent systems. These impurities are mixed and suspended, and are prone to entanglement and aggregation, remaining within the circulating liquid phase for extended periods. Therefore, this application proposes a staged filtration device for a glass fiber slurry circulation system. Summary of the Invention

[0004] The purpose of this invention is to provide a graded filtration device for a glass fiber slurry circulation system, which solves the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a graded filtration device for a glass fiber slurry circulation system, comprising a hydrocyclone, an input pipe arranged tangentially at the upper end of the side wall of the hydrocyclone, an output pipe arranged above the hydrocyclone, the lower end of the output pipe penetrating the upper side wall of the hydrocyclone and extending into the hydrocyclone, a first filtration mechanism arranged at the output end of the output pipe, a second filtration mechanism arranged to the right of the first filtration mechanism, and a third filtration mechanism arranged to the right of the second filtration mechanism.

[0006] The filter mechanism includes a storage box with an opening at the top, the output end of the output pipe extends to the top of the storage box, a cleaning port is provided at the upper end of the right side wall of the storage box, and a number of baffle rods are fixedly connected to the lower inner wall of the storage box. The baffle rods are inclined and the right end of the baffle rods is fixedly connected to the lower inner wall of the cleaning port.

[0007] The second filtration mechanism includes a connecting pipe and a storage cylinder with an opening at the top. A collection mechanism is provided at the upper end of the storage cylinder. A cleaning filter plate is provided inside the storage cylinder. A fixing frame is provided above the collection mechanism. A rotating motor is fixedly connected to the upper end of the fixing frame. A rotating rod is fixedly connected to the output end of the rotating motor. The lower end of the rotating rod passes through the fixing frame, the collection mechanism, and the cleaning filter plate in sequence and is rotatably connected to the lower inner wall of the storage cylinder. A lifting mechanism is provided on the cleaning filter plate. A drive pipe is fixedly connected to the rotating rod. A driven gear ring is provided between the cleaning filter plate and the rotating rod. The driven gear ring is fixedly connected to the cleaning filter plate. A mating tooth is provided on the outer wall of the drive pipe. The driven gear ring is adapted to the mating tooth.

[0008] Preferably, the collection mechanism includes a collection outer cylinder, the upper end of the storage cylinder penetrates the lower side wall of the collection outer cylinder and extends into the collection outer cylinder, the upper side wall of the collection outer cylinder has a through hole, the rotating rod is located in the through hole, a fixing bracket is fixed to the upper end of the collection outer cylinder, an input end of a connecting pipe is connected to the storage box, and an output end of the connecting pipe penetrates the upper side wall of the collection outer cylinder and extends above the storage cylinder;

[0009] The lifting mechanism includes a rotating frame sleeved on a rotating rod. A limiting slide is provided on the lower side wall of the rotating frame. Several connecting rods are fixedly connected to the upper end of the cleaning filter plate. The upper end of the connecting rod passes through the limiting slide and is fixedly connected to a limiting plate. At least two traction slides are fixedly connected to the upper end of the rotating frame. A second fixing frame is provided outside the rotating motor. A movable electric push rod is fixedly connected to the upper end of the second fixing frame. A support plate is fixedly connected to the output end of the movable electric push rod. A movable plate is provided above the support plate. The upper end of the traction slide passes through the through hole, the first fixing frame, and the support plate in sequence and is fixedly connected to the lower end of the movable plate.

[0010] Preferably, a support spring is sleeved on the traction slide rod, and the upper and lower ends of the support spring are fixedly connected to the adjacent side walls of the moving plate and the support plate, respectively. A limiting support tube is sleeved on the traction slide rod, and the limiting support tube is fixed to the support plate. The limiting support tube is located inside the support spring. An abutment spring is fixedly connected to the upper end of the moving plate, and a pressure detection sensor is fixedly connected to the lower end of the abutment spring. The lower end of the pressure detection sensor is fixedly connected to the upper end of the support plate.

[0011] Preferably, a vibration track is provided inside the rotating frame, the vibration track is coaxial with the rotating frame, the vibration track is wavy, a suspension plate is fixedly connected to the upper end of the limiting plate, a sliding hole is provided on the suspension plate, a moving position opening is provided on the upper side wall of the sliding hole, the vibration track is located inside the sliding hole, and a plurality of fixed columns are fixedly connected to the vibration track, the upper end of the fixed columns is fixedly connected to the upper inner wall of the rotating frame, and the outer diameter of the fixed columns is smaller than the inner diameter of the moving position opening.

[0012] Preferably, the upper edge of the cleaning filter plate is inclined downwards, and a plurality of collecting plates are fixedly connected to the upper end of the cleaning filter plate. A plurality of collecting teeth are provided on the collecting plates, and the upper ends of the collecting teeth are inclined away from the driven tooth ring.

[0013] Preferably, a moving motor is fixedly connected to the upper end of the collecting outer cylinder, the output end of the moving motor passes through the upper side wall of the collecting outer cylinder and is fixedly connected to a transmission gear, a transmission gear ring is rotatably connected to the inner side wall of the collecting outer cylinder, the transmission gear ring meshes with the transmission gear, a cleaning push plate is fixedly connected to the lower end of the transmission gear ring, the outer end of the cleaning push plate is close to the inner side wall of the collecting outer cylinder, and a discharge pipe is connected to the collecting outer cylinder.

[0014] Preferably, a lifting motor is fixedly connected to the rear end of the storage box, a hollow conveyor belt is provided inside the storage box, the conveyor belt is located to the right of the baffle bar, the left side wall of the conveyor belt is parallel to the baffle bar, a number of lifting rods are provided on the outer side wall of the conveyor belt, the lifting rods are staggered with the baffle bar, a collection box is provided on the right side of the storage box, and the cleaning port is located inside the collection box.

[0015] Preferably, the third filter mechanism includes a filter outer cylinder with a built-in ceramic filter membrane. A supply pipe is connected to the lower end of the side wall of the filter outer cylinder, a water outlet pipe is connected to the upper end of the filter outer cylinder, a backwash water inlet pipe is connected to the lower end of the filter outer cylinder, and a backwash sewage discharge pipe is connected to the upper end of the side wall of the filter outer cylinder. A supply pump is provided between the second and third filter mechanisms. A connecting pipe two is connected to the input end of the supply pump. The output end of the connecting pipe two passes through the side wall of the storage cylinder and is connected to the storage cylinder. The output end of the supply pump is connected to the supply pipe.

[0016] Preferably, a first flushing pipe and a second flushing pipe are fixedly connected to the inner wall of the upper side of the outer collecting cylinder. Both the first flushing pipe and the second flushing pipe have water spray holes on their side walls. The water spray holes on one side wall of the first flushing pipe point towards the cleaning push plate, and the water spray holes on the second side wall of the second flushing pipe point towards the cleaning filter plate.

[0017] Compared with related technologies, the graded filtration device for a glass fiber slurry circulation system provided by the present invention has the following beneficial effects:

[0018] 1. This invention provides a graded filtration device for a glass fiber slurry circulation system. The device forms a graded filtration structure through a hydrocyclone, a first filter mechanism, a second filter mechanism, and a third filter mechanism. The hydrocyclone utilizes centrifugal force to initially remove larger rubber debris. Filter mechanisms one and two work together to intercept and process filamentous glass fiber fragments. Filter mechanism three uses a ceramic filter membrane for final fine filtration of smaller rubber debris and fine suspended matter. Through the synergistic effect of multiple filtration structures, the device achieves stepwise separation of impurities of different particle sizes and forms, ensuring high cleanliness of the circulating slurry.

[0019] 2. This invention provides a graded filtration device for a glass fiber slurry circulation system. In the first filtration mechanism, the interlocking of baffles and lifting rods on the conveyor belt intercepts filamentous glass fiber fragments while simultaneously using the perforated conveyor belt to automatically lift and feed the fragments into a collection box, completing the automatic cleaning after preliminary filtration. Simultaneously, the second filtration mechanism utilizes a rotating motor, drive tube, and driven toothed ring to drive the cleaning filter plate to rotate continuously. During the filtration process, the plate actively grabs and collects the filamentous glass fiber fragments using the inclined collection teeth, effectively preventing fiber entanglement or clogging of the filter pores, thus improving the continuity and stability of filtration.

[0020] 3. This invention provides a graded filtration device for a glass fiber slurry circulation system. The outer end of the cleaning filter plate is inclined downward. When the cleaning filter plate is in the storage cylinder, the rotating motor rotates at low speed. When the pressure sensor detects that the weight has increased to a preset weight, the lifting mechanism moves the cleaning filter plate upward. When the cleaning filter plate moves to the preset position and reaches the top of the storage cylinder, it stops, and the rotating motor turns to high speed. Under the action of high speed rotation, the filamentous glass fiber fragments on the cleaning filter plate and the collecting teeth are thrown out and collected in the outer collection cylinder. The structure of the cleaning filter plate and the collecting teeth makes it easier to throw out the filamentous glass fiber fragments.

[0021] 4. This invention provides a graded filtration device for a glass fiber slurry circulation system. A wave-shaped vibration track is provided inside the rotating frame, and a movable position opening is provided on the upper side of the sliding hole on the suspension plate, which maintains the same height position as the vibration track. During the rotation of the cleaning filter plate, the suspension plate slides along the wave-shaped contour of the vibration track, thereby causing the cleaning filter plate to vibrate periodically up and down. This vibration can effectively shake off the tiny fibers or particles that are blocked in the filter holes, avoiding clogging of the cleaning filter plate after long-term use, extending the cleaning cycle and reducing the need for manual maintenance. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a three-dimensional structural diagram of the filtration mechanism of the present invention;

[0024] Figure 3 For the present invention Figure 2 Enlarged view of a portion of point A in the middle;

[0025] Figure 4 A schematic diagram showing the location of the cleaning port of the present invention is provided.

[0026] Figure 5 This is a three-dimensional structural diagram of the conveyor belt of the present invention;

[0027] Figure 6 This is a three-dimensional structural diagram of the filtration mechanism of the present invention;

[0028] Figure 7 For the present invention Figure 6 Enlarged view of a section at point B in the middle;

[0029] Figure 8 This is a three-dimensional cross-sectional structural diagram of the storage cylinder location of the present invention;

[0030] Figure 9 For the present invention Figure 8 Enlarged view of a section at point C;

[0031] Figure 10 This is a partial structural diagram of the filter mechanism of the present invention;

[0032] Figure 11 For the present invention Figure 10 Enlarged view of a section at point D;

[0033] Figure 12 This is a three-dimensional structural diagram of the rotating frame position of the present invention;

[0034] Figure 13 This is a schematic diagram of the three-dimensional structure of the vibration track of the present invention;

[0035] Figure 14 For the present invention Figure 13 Enlarged view of a section at point E in the middle;

[0036] Figure 15 This is a schematic diagram of the three-dimensional structure of the cleaning filter plate of the present invention;

[0037] Figure 16 This is a three-dimensional structural diagram of the filtration mechanism of the present invention.

[0038] In the diagram: 1. Hydrocyclone; 2. Inlet pipe; 3. Outlet pipe; 4. Filter mechanism one; 401. Storage tank; 402. Cleaning port; 403. Collection tank; 404. Baffle rod; 405. Lifting motor; 406. Conveyor belt; 407. Lifting rod; 5. Filter mechanism two; 501. Storage cylinder; 502. Connecting pipe one; 503. Outer collection cylinder; 504. Through hole; 505. Discharge pipe; 506. Connecting pipe two; 507. Fixing frame one; 508. Rotating motor; 509. Fixing frame two; 510. Moving electric push rod; 511. Support plate; 512. Moving plate; 513. Traction slide bar; 514. Support spring; 515. Limiting support pipe; 516. Abutment spring; 517. Pressure detection. 518. Sensor; 519. Moving motor; 520. Transmission gear ring; 521. Transmission gear; 522. Cleaning push plate; 523. Flushing pipe one; 524. Flushing pipe two; 525. Cleaning filter plate; 526. Rotating rod; 527. Drive pipe; 528. Driven gear ring; 529. Collection plate; 530. Rotating frame; 531. Connecting rod; 532. Limiting slide; 533. Limiting plate; 534. Vibration track; 535. Fixed column; 536. Suspension plate; 537. Moving position port; 538. Sliding hole; 6. Filter mechanism three; 601. Supply pipe; 602. Filter outer cylinder; 603. Backwash inlet pipe; 604. Backwash drain pipe; 605. Outlet pipe; 7. Supply pump. Detailed Implementation

[0039] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0040] Example 1:

[0041] Please see Figures 1-5 The present invention provides a technical solution: a graded filtration device for a glass fiber slurry circulation system, including a hydrocyclone 1 for preliminary separation of high-density rubber debris, an input pipe 2 arranged tangentially at the upper end of the side wall of the hydrocyclone 1, an output pipe 3 arranged above the hydrocyclone 1, the lower end of the output pipe 3 penetrating the upper side wall of the hydrocyclone 1 and extending into the hydrocyclone 1, a first filter mechanism 4 arranged at the output end of the output pipe 3, a second filter mechanism 5 arranged to the right of the first filter mechanism 4, and a third filter mechanism 6 arranged to the right of the second filter mechanism 5. The first filter mechanism 4 is used to intercept filamentous glass fiber fragments, the second filter mechanism 5 is used to grab and collect filamentous fibers, and the third filter mechanism 6 is used to filter smaller rubber debris and suspended matter.

[0042] The filter mechanism 4 includes a storage tank 401 with an opening at the top. The storage tank 401 is used to receive the liquid after preliminary separation by the hydrocyclone 1. The output end of the output pipe 3 extends to the top of the storage tank 401. A cleaning port 402 is provided at the upper end of the right side wall of the storage tank 401. Several baffle rods 404 are fixedly connected to the lower inner wall of the storage tank 401. The baffle rods 404 are inclined. The inclined baffle rods 404 can intercept the filamentous glass fibers. The filamentous glass fibers float to the water surface under the action of water flow, which is convenient for centralized cleaning. The right end of the baffle rod 404 is fixedly connected to the lower inner wall of the cleaning port 402.

[0043] A lifting motor 405 is fixedly connected to the rear end of the storage box 401. A hollow conveyor belt 406 is installed inside the storage box 401. The conveyor belt 406 is located to the right of the baffle bar 404. The left side wall of the conveyor belt 406 is parallel to the baffle bar 404. Several lifting rods 407 are provided on the outer side wall of the conveyor belt 406. The lifting rods 407 are staggered with the baffle bar 404. The lifting rods 407 are used to lift the filamentous glass fibers intercepted on the baffle bar 404 upward when the conveyor belt 406 moves. A collection box 403 is provided on the right side of the storage box 401. The cleaning port 402 is located inside the collection box 403. In use, the lifting motor 405 drives the conveyor belt 406 and the lifting rods 407 to rotate, thereby cleaning away the filamentous fibers intercepted by the baffle bar 404 and moving them upward along the baffle bar 404, and finally collecting them in the collection box 403.

[0044] Example 2:

[0045] Please see Figures 6-16 As shown, based on Embodiment 1, the present invention provides a technical solution: the second filtration mechanism 5 includes a connecting pipe 502 and a storage cylinder 501 with an opening at the upper end. A collection mechanism is provided at the upper end of the storage cylinder 501. A cleaning filter plate 524 is provided inside the storage cylinder 501. The cleaning filter plate 524 is used to filter filamentous glass fibers in the liquid. A fixing frame 507 is provided above the collection mechanism. A rotating motor 508 is fixedly connected to the upper end of the fixing frame 507. A rotating rod 525 is fixedly connected to the output end of the rotating motor 508. The lower end of the rotating rod 525 passes through the fixing frame 507, the collection mechanism, and the cleaning filter plate 524 in sequence. The filter plate 524 is rotatably connected to the lower inner wall of the storage cylinder 501. A lifting mechanism is provided on the cleaning filter plate 524. A drive tube 526 is fixedly connected to the rotating rod 525. A driven gear ring 527 is provided between the cleaning filter plate 524 and the rotating rod 525. The driven gear ring 527 is fixedly connected to the cleaning filter plate 524. The outer wall of the drive tube 526 is provided with mating teeth. The driven gear ring 527 is matched with the mating teeth. In use, the rotating motor 508 drives the cleaning filter plate 524 to rotate through the drive tube 526 and the driven gear ring 527. During the liquid filtration process, the rotating motor 508 rotates at a low speed.

[0046] The lifting mechanism includes a rotating frame 530 sleeved on a rotating rod 525. A limiting slide 532 is provided on the lower side wall of the rotating frame 530. Several connecting rods 531 are fixedly connected to the upper end of the cleaning filter plate 524. The upper ends of the connecting rods 531 pass through the limiting slide 532 and are fixedly connected to a limiting plate 533. At least two traction slide rods 513 are fixedly connected to the upper end of the rotating frame 530. A second fixing frame 509 is provided outside the rotating motor 508. A movable electric push rod 510 is fixedly connected to the upper end of the second fixing frame 509. A support plate 511 is fixedly connected to the output end of the movable electric push rod 510. A movable plate 512 is provided above the support plate 511. The upper ends of the traction slide rods 513 pass through through holes in sequence. 504, fixed frame 507, support plate 511 and fixed connection to the lower end of the moving plate 512; when cleaning the filamentous glass fibers collected on the cleaning filter plate 524, the moving electric push rod 510 pushes the support plate 511 to move upward. When the upper end of the limiting support tube 515 contacts the lower end of the moving plate 512, it drives the moving plate 512, the traction slide rod 513 and the cleaning filter plate 524 to move upward. The cleaning filter plate 524 stops when it is above the storage cylinder 501. At the same time, the rotating motor 508 switches to high-speed rotation mode and uses centrifugal force to throw the filamentous limiting fibers attached to the cleaning filter plate 524 and the collecting teeth 529 outward and collect them in the outer collection cylinder 503.

[0047] A support spring 514 is fitted onto the traction slide bar 513. The upper and lower ends of the support spring 514 are fixedly connected to the adjacent side walls of the moving plate 512 and the support plate 511, respectively. A limiting support tube 515 is fitted onto the traction slide bar 513 and is fixed to the support plate 511. The limiting support tube 515 is located inside the support spring 514. An abutment spring 516 is fixedly connected to the upper end of the moving plate 512, and a pressure detection sensor 517 is fixedly connected to the lower end of the abutment spring 516. The lower end of the pressure detection sensor 517 is fixedly connected to the upper end of the support plate 511. The signal output terminal of the pressure detection sensor 517 is electrically connected to the signal input terminal of an external controller. The control output terminal of the external controller is electrically connected to the rotating motor 508 and the moving electric push rod 510. This cleans the fibers on the filter plate 524. As the material gradually accumulates, it causes the traction slide bar 513 and the moving plate 512 to move downwards. This, in turn, applies pressure to the pressure detection sensor 517 via the abutment spring 516. The pressure detection sensor 517 transmits the detected pressure signal to the external controller in real time. When the pressure value reaches the preset value, it indicates that the filamentous glass fibers collected on the cleaning filter plate 524 have reached the required level for cleaning. At this point, the external controller first controls the rotating motor 508 to stop rotating, and then controls the moving electric push rod 510 to start, lifting the cleaning filter plate 524 upwards above the storage cylinder 501 for subsequent throwing-out operation. After the throwing-out and reset, the external controller controls the moving electric push rod 510 to reset, the cleaning filter plate 524 is re-immersed in the liquid surface, and the pressure detection sensor 517 returns to its initial detection state, realizing automatic cleaning control.

[0048] A vibration track 534 is provided inside the rotating frame 530. The vibration track 534 is coaxial with the rotating frame 530 and is wave-shaped. A suspension plate 536 is fixedly connected to the upper end of the limiting plate 533. A sliding hole 538 is provided on the suspension plate 536. A moving position opening 537 is provided on the upper side wall of the sliding hole 538. The vibration track 534 is located inside the sliding hole 538. Several fixed columns 535 are fixedly connected to the vibration track 534. The upper end of the fixed column 535 is fixedly connected to the upper inner wall of the rotating frame 530. The outer diameter of the fixed column 535 is smaller than the inner diameter of the moving position opening 537. When the cleaning filter plate 524 rotates, the connecting rod 531, the limiting plate 533 and the suspension plate 536 rotate synchronously with the cleaning filter plate 524. The wave-shaped vibration track 534 and the suspension plate 536 cooperate to make the cleaning filter plate 524 vibrate periodically, thereby effectively preventing the filter holes from clogging. The filtered liquid flows to the bottom of the storage cylinder 501.

[0049] The upper edge of the cleaning filter plate 524 is inclined downward. Several collection plates 528 are fixedly connected to the upper end of the cleaning filter plate 524. Several collection teeth 529 are provided on the collection plates 528. The upper end of the collection teeth 529 is inclined away from the driven tooth ring 527. When the rotating motor 508 drives the cleaning filter plate 524 to rotate, the gripping teeth are used to actively grip the filamentous glass fibers.

[0050] The collection mechanism includes an outer collection cylinder 503, an upper end of a storage cylinder 501 that penetrates the lower side wall of the outer collection cylinder 503 and extends into the outer collection cylinder 503, a through hole 504 is provided on the upper side wall of the outer collection cylinder 503, a rotating rod 525 is located in the through hole 504, a fixing bracket 507 is fixed to the upper end of the outer collection cylinder 503, an input end of a connecting pipe 502 is connected to a storage box 401, and an output end of the connecting pipe 502 penetrates the upper side wall of the outer collection cylinder 503 and extends above the storage cylinder 501.

[0051] A moving motor 518 is fixedly connected to the upper end of the collecting outer cylinder 503. The output end of the moving motor 518 passes through the upper side wall of the collecting outer cylinder 503 and is fixedly connected to a transmission gear 520. A transmission gear ring 519 is rotatably connected to the inner side wall of the collecting outer cylinder 503. The transmission gear ring 519 meshes with the transmission gear 520. A cleaning push plate 521 is fixedly connected to the lower end of the transmission gear ring 519. The outer end of the cleaning push plate 521 is close to the inner side wall of the collecting outer cylinder 503. A discharge pipe 505 is connected to the collecting outer cylinder 503. After collection, the moving motor 518 drives the transmission gear 520 to rotate. With the cooperation of the transmission gear 520 and the transmission gear ring 519, the cleaning push plate 521 is driven to rotate. The cleaning push plate 521 pushes the collected fibers to the position of the discharge pipe 505 for discharge.

[0052] The inner wall of the outer cylinder 503 is fixedly connected to a first flushing pipe 522 and a second flushing pipe 523. Both the first flushing pipe 522 and the second flushing pipe 523 have water spray holes on their side walls. The water spray holes on the side wall of the first flushing pipe 522 point towards the cleaning push plate 521, and the water spray holes on the side wall of the second flushing pipe 523 point towards the cleaning filter plate 524. The second flushing pipe 523 and the cleaning filter plate 524 can be flushed by the external flushing equipment cooperating with the first flushing pipe 522 and the second flushing pipe 523.

[0053] Filter mechanism 3 (6) includes an outer filter cylinder 602 with a ceramic filter membrane inside. A supply pipe 601 is connected to the lower end of the side wall of the outer filter cylinder 602, an outlet pipe 605 is connected to the upper end of the outer filter cylinder 602, a backwash inlet pipe 603 is connected to the lower end of the outer filter cylinder 602, and a backwash drain pipe 604 is connected to the upper end of the side wall of the outer filter cylinder 602. A supply pump 7 is installed between filter mechanism 2 (5) and filter mechanism 3 (6). A connecting pipe 2 (506) is connected to the input end of the supply pump 7, and the output end of the connecting pipe 2 (506) passes through the side wall of the storage cylinder 501 and is connected to the storage cylinder 501. The output end of the supply pump 7 is connected to the supply... The liquid is connected through pipe 601 and then filtered by filter mechanism 2 5. Under the action of supply pump 7, the liquid is pushed into filter mechanism 3 6. The liquid enters the outer filter cylinder 602 through supply pipe 601, and is then filtered by the ceramic filter membrane of the outer filter cylinder 602 before being discharged from the outlet pipe 605. This process performs final filtration of some small rubber debris and suspended solids, thus obtaining the final recycled water. After long-term use, flushing water is introduced into the backwash inlet pipe 603 through external flushing equipment. The flushing water is used to filter the ceramic filter membrane, and the flushed wastewater is discharged from the backwash drain pipe 604.

[0054] Working principle: During use, the slurry containing impurities enters the hydrocyclone 1 tangentially through the input pipe 2. Under the action of centrifugal force, the heavier rubber debris is thrown against the side wall of the hydrocyclone 1 and settles downwards and is discharged, while the liquid carrying lighter impurities such as filamentous fibers is discharged upwards from the output pipe 3 and enters the storage tank 401 of the filtration mechanism 4. In the storage tank 401, the liquid passes through the inclined baffle bar 404 and the hollow conveyor belt 406, and enters the storage cylinder 501 through the connecting pipe 502. In the filtration mechanism 4, the lifting motor 405 drives the conveyor belt 406 and the lifting rod 407 to rotate, thereby cleaning away the filamentous fibers intercepted by the baffle bar 404 and moving them upwards along the baffle bar 404, and finally collecting them in the collection tank 403.

[0055] In the second filtration mechanism 5, the rotating motor 508 drives the cleaning filter plate 524 to rotate at a low speed through the drive tube 526 and the driven gear ring 527. When the liquid enters the second filtration mechanism 5, the filamentous fibers in the liquid are actively grabbed by the collecting teeth 529 during the rotation of the cleaning filter plate 524. At the same time, as the liquid passes through the cleaning filter plate 524, the cleaning filter plate 524 filters the filamentous fibers. While the cleaning filter plate 524 rotates, the connecting rod 531, the limiting plate 533, and the suspension plate 536 rotate synchronously with the cleaning filter plate 524. The wave-shaped vibration track 534 cooperates with the suspension plate 536, which causes the cleaning filter plate 524 to vibrate periodically, thereby effectively preventing the filter holes from clogging. The filtered liquid then flows to the bottom of the storage cylinder 501.

[0056] As fibers gradually accumulate on the cleaning filter plate 524, the traction slide bar 513 and the moving plate 512 move downwards. This, in turn, applies pressure to the pressure sensor 517 via the abutment spring 516. When the pressure reaches a preset value, the lifting mechanism raises the cleaning filter plate 524 above the storage cylinder 501. During this lifting, the moving electric drive pushes the support plate 511 upwards. When the upper end of the limiting support tube 515 contacts the lower end of the moving plate 512, it causes the moving plate 512, the traction slide bar 513, and the cleaning filter plate 524 to move upwards. After the filter plate 524 is positioned above the storage cylinder 501, the rotation motor 508 switches to high-speed rotation mode. Centrifugal force is used to throw the filamentous limiters attached to the filter plate 524 and the collection teeth 529 outwards and collect them in the outer collection cylinder 503. After collection, the moving motor 518 drives the transmission gear 520 to rotate. With the cooperation of the transmission gear 520 and the transmission gear ring 519, the cleaning push plate 521 is driven to rotate. The cleaning push plate 521 pushes the collected fibers to the discharge pipe 505 for discharge.

[0057] After being filtered by filter mechanism 2 (5), the liquid is pushed into filter mechanism 3 (6) by supply pump 7. The liquid enters the outer filter cylinder 602 through supply pipe 601, and then passes through the ceramic filter membrane in the outer filter cylinder 602 before being discharged from the outlet pipe 605. This process performs final filtration of small rubber debris and suspended solids, resulting in recycled water. After prolonged use, flushing water is introduced into the backwash inlet pipe 603 through external flushing equipment to backwash the ceramic filter membrane. The flushed wastewater is discharged from the backwash drain pipe 604.

[0058] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A graded filtration device for a glass fiber slurry circulation system, characterized in that: Includes a hydrocyclone (1), an input pipe (2) is provided on the upper end of the side wall of the hydrocyclone (1) along the tangential direction, an output pipe (3) is provided above the hydrocyclone (1), the lower end of the output pipe (3) penetrates the upper side wall of the hydrocyclone (1) and extends into the hydrocyclone (1), a filter mechanism one (4) is provided at the output end of the output pipe (3), a filter mechanism two (5) is provided on the right side of the filter mechanism one (4), and a filter mechanism three (6) is provided on the right side of the filter mechanism two (5). The first filter mechanism (4) includes a storage box (401) with an opening at the top. The output end of the output pipe (3) extends to the top of the storage box (401). A cleaning port (402) is provided at the upper end of the right side wall of the storage box (401). Several baffle rods (404) are fixedly connected to the lower inner wall of the storage box (401). The baffle rods (404) are inclined and the right end of the baffle rods (404) is fixedly connected to the lower inner wall of the cleaning port (402). The second filtration mechanism (5) includes a connecting pipe (502) and a storage cylinder (501) with an opening at the top. A collection mechanism is provided at the upper port of the storage cylinder (501). A cleaning filter plate (524) is provided inside the storage cylinder (501). A fixing frame (507) is provided above the collection mechanism. A rotating motor (508) is fixedly connected to the upper end of the fixing frame (507). A rotating rod (525) is fixedly connected to the output end of the rotating motor (508). The lower end of the rotating rod (525) passes through the fixing frame in sequence. (507) A collection mechanism and a cleaning filter plate (524) are rotatably connected to the lower inner wall of the storage cylinder (501). The cleaning filter plate (524) is provided with a lifting mechanism. A drive tube (526) is fixedly connected to the rotating rod (525). A driven toothed ring (527) is provided between the cleaning filter plate (524) and the rotating rod (525). The driven toothed ring (527) is fixedly connected to the cleaning filter plate (524). The outer wall of the drive tube (526) is provided with mating teeth. The driven toothed ring (527) is adapted to the mating teeth.

2. The graded filtration device for a glass fiber slurry circulation system according to claim 1, characterized in that: The collection mechanism includes a collection outer cylinder (503), the upper end of the storage cylinder (501) penetrates the lower side wall of the collection outer cylinder (503) and extends into the collection outer cylinder (503), the upper side wall of the collection outer cylinder (503) is provided with a through hole (504), the rotating rod (525) is located in the through hole (504), the first fixing bracket (507) is fixed to the upper end of the collection outer cylinder (503), the input end of the first connecting pipe (502) is connected to the storage box (401), and the output end of the first connecting pipe (502) penetrates the upper side wall of the collection outer cylinder (503) and extends above the storage cylinder (501); The lifting mechanism includes a rotating frame (530) sleeved on a rotating rod (525). A limiting slide (532) is provided on the lower side wall of the rotating frame (530). Several connecting rods (531) are fixedly connected to the upper end of the cleaning filter plate (524). The upper ends of the connecting rods (531) pass through the limiting slide (532) and are fixedly connected to a limiting plate (533). At least two traction slides (513) are fixedly connected to the upper end of the rotating frame (530). The rotating motor (525)... 08) A second fixed frame (509) is provided on the outside. A movable electric push rod (510) is fixedly connected to the upper end of the second fixed frame (509). A support plate (511) is fixedly connected to the output end of the movable electric push rod (510). A movable plate (512) is provided above the support plate (511). The upper end of the traction slide rod (513) passes through the through hole (504), the first fixed frame (507), and the support plate (511) in sequence and is fixedly connected to the lower end of the movable plate (512).

3. The graded filtration device for a glass fiber slurry circulation system according to claim 2, characterized in that: A support spring (514) is fitted on the traction slide (513). The upper and lower ends of the support spring (514) are fixedly connected to the adjacent side walls of the moving plate (512) and the support plate (511), respectively. A limiting support tube (515) is fitted on the traction slide (513). The limiting support tube (515) is fixed on the support plate (511). The limiting support tube (515) is located inside the support spring (514). An abutment spring (516) is fixedly connected to the upper end of the moving plate (512). A pressure detection sensor (517) is fixedly connected to the lower end of the abutment spring (516). The lower end of the pressure detection sensor (517) is fixedly connected to the upper end of the support plate (511).

4. The graded filtration device for a glass fiber slurry circulation system according to claim 2, characterized in that: A vibration track (534) is provided inside the rotating frame (530). The vibration track (534) is coaxially arranged with the rotating frame (530). The vibration track (534) is wavy. A suspension plate (536) is fixedly connected to the upper end of the limiting plate (533). A sliding hole (538) is provided on the suspension plate (536). A moving position opening (537) is provided on the upper side wall of the sliding hole (538). The vibration track (534) is located inside the sliding hole (538). Several fixed columns (535) are fixedly connected to the vibration track (534). The upper end of the fixed column (535) is fixedly connected to the upper inner wall of the rotating frame (530). The outer diameter of the fixed column (535) is smaller than the inner diameter of the moving position opening (537).

5. The graded filtration device for a glass fiber slurry circulation system according to claim 2, characterized in that: The cleaning filter plate (524) is inclined downward at the edge of the upper surface. Several collection plates (528) are fixedly connected to the upper end of the cleaning filter plate (524). Several collection teeth (529) are provided on the collection plates (528). The upper end of the collection teeth (529) is inclined away from the driven tooth ring (527).

6. The graded filtration device for a glass fiber slurry circulation system according to claim 2, characterized in that: A moving motor (518) is fixedly connected to the upper end of the collecting outer cylinder (503). The output end of the moving motor (518) passes through the upper side wall of the collecting outer cylinder (503) and is fixedly connected to a transmission gear (520). A transmission gear ring (519) is rotatably connected to the inner side wall of the collecting outer cylinder (503). The transmission gear ring (519) meshes with the transmission gear (520). A cleaning push plate (521) is fixedly connected to the lower end of the transmission gear ring (519). The outer end of the cleaning push plate (521) is close to the inner side wall of the collecting outer cylinder (503). A discharge pipe (505) is connected to the collecting outer cylinder (503).

7. The graded filtration device for a glass fiber slurry circulation system according to claim 1, characterized in that: A lifting motor (405) is fixedly connected to the rear end of the storage box (401). A hollow conveyor belt (406) is provided inside the storage box (401). The conveyor belt (406) is located to the right of the baffle bar (404). The left side wall of the conveyor belt (406) is parallel to the baffle bar (404). Several lifting rods (407) are provided on the outer side wall of the conveyor belt (406). The lifting rods (407) are staggered with the baffle bar (404). A collection box (403) is provided on the right side of the storage box (401). The cleaning port (402) is located inside the collection box (403).

8. The graded filtration device for a glass fiber slurry circulation system according to claim 1, characterized in that: The third filter mechanism (6) includes a filter outer cylinder (602), which has a built-in ceramic filter membrane. The lower end of the side wall of the filter outer cylinder (602) is connected to a supply pipe (601), the upper end of the filter outer cylinder (602) is connected to a water outlet pipe (605), the lower end of the filter outer cylinder (602) is connected to a backwash water inlet pipe (603), and the upper end of the side wall of the filter outer cylinder (602) is connected to a backwash drain pipe (604). A supply pump (7) is provided between the second filter mechanism (5) and the third filter mechanism (6). The input end of the supply pump (7) is connected to a connecting pipe (506), the output end of the connecting pipe (506) passes through the side wall of the storage cylinder (501) and is connected to the storage cylinder (501). The output end of the supply pump (7) is connected to the supply pipe (601).

9. A graded filtration device for a glass fiber slurry circulation system according to claim 2, characterized in that: The upper inner wall of the collection outer cylinder (503) is fixedly connected to a flushing pipe one (522) and a flushing pipe two (523). Both flushing pipe one (522) and flushing pipe two (523) have water spray holes on their side walls. The water spray holes on the side wall of flushing pipe one (522) point towards the cleaning push plate (521), and the water spray holes on the side wall of flushing pipe two (523) point towards the cleaning filter plate (524).

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