A kaolin slurry filtration apparatus

Abstract

The application discloses a kaolin slurry filtering device, and particularly relates to the technical field of kaolin slurry treatment. The device is provided with a scraping and washing part and a dredging part, and an annular flow guide cavity for the entry of slurry is formed in the treatment box. When normal water inflow filtering is performed, the electric cylinder in the scraping and washing part pushes the arc-shaped plate II to descend, and the arc-shaped plate II performs circumferential movement above the perforated plate, the kaolin slurry staying on the upper part of the perforated plate is stirred and scraped in a ring direction, the slurry accumulated below the water inlet is diffused along the circumference of the ring, and the slurry is subjected to buffer distribution and preliminary uniform distribution before filtering, which is beneficial to improving the stability of the filtering process. The kaolin particles, mud balls or impurities adhering to the upper surface of the perforated plate are scraped and washed, and the effective filtration area of the perforated plate is maintained. The state of the inserted needle is switched to the dredging state, the holes and grooves on the perforated plate are acted on, the kaolin mud blocks, deposited particles or adhering substances in the holes and grooves are pushed, and the periodic cleaning of the perforated plate is realized.

Description

Technical Field

[0001] This invention relates to the field of kaolin mud water treatment technology, specifically to a kaolin mud water filtration device. Background Technology

[0002] Kaolin, as an important non-metallic mineral resource, is widely used in ceramics, papermaking, rubber, coatings, refractory materials, and chemical industries. During the mining, washing, grading, purification, and transportation of kaolin, kaolin slurry containing a large number of fine particles is typically generated. If this slurry is not effectively filtered, it not only makes solid-liquid separation and kaolin slurry recovery difficult, but also easily leads to water waste, increased burden on subsequent processes, and increased discharge pressure. Therefore, efficient filtration of kaolin slurry is of great significance.

[0003] In existing technologies, the filtration treatment methods for kaolin slurry typically include natural sedimentation, screen filtration, vacuum filtration, and filter press filtration. Although these methods can achieve slurry-water separation, the fine particle size, strong suspension stability, and high viscosity of kaolin slurry can easily lead to problems such as slow filter bed formation, low filtration efficiency, severe clogging of filter screens or cloths, and high moisture content in the filter cake during the filtration process.

[0004] In practical use, existing kaolin slurry filtration devices suffer from several problems. Due to the high fine particle content and adhesive properties of the kaolin slurry, the slurry easily impacts the filtration area or concentrates on specific areas of the filter surface after entering through the inlet. This causes the porous filter structure below the inlet to be subjected to prolonged concentrated slurry scouring and sedimentation. As the filtration process continues, kaolin particles, clumps, and impurities tend to adhere to the surface of the porous plate or clog its pores, gradually reducing the effective filtration area and decreasing the flow capacity of the filtration channels. This results in reduced filtration efficiency, unstable treatment capacity, and frequent cleaning and maintenance, hindering continuous filtration of kaolin slurry. Summary of the Invention

[0005] The purpose of this invention is to provide a kaolin mud-water filtration device to solve the problems mentioned in the background art.

[0006] The main technical problem solved by this invention is: In existing technologies, muddy water entering through the inlet can easily directly impact the filtration area or concentrate in localized areas of the filtration surface. Kaolin particles, mud clumps, and impurities can easily adhere to the surface of the perforated plate or clog the perforated plate slots, resulting in a gradual reduction in the effective filtration area and a decrease in the flow capacity of the filtration channel. This leads to reduced filtration efficiency, unstable treatment capacity, and frequent cleaning and maintenance, which is not conducive to the continuous filtration treatment of kaolin muddy water.

[0007] This invention can be achieved through the following technical solutions: A kaolin mud-water filtration device includes a treatment box, an inlet on one side of the top of the treatment box, and an annular cylinder installed in the middle of the inner cavity of the treatment box. A flow guide cavity is formed between the annular cylinder and the treatment box. A porous plate for mud-water infiltration is provided in the upper part of the inner cavity of the flow guide cavity and below the inlet. The top outer side of the ring cylinder is rotatably mounted with a rotating toothed sleeve that rotates around the center of the ring cylinder. The bottom sides of the rotating toothed sleeve are respectively provided with a scraping and washing component for stirring the mud and water in the upper cavity of the perforated plate and a dredging component for cleaning the perforated plate grooves. Both the scraping and unblocking components include a limiting frame that fits against the outer wall of the ring cylinder. A fixing plate is fixed to the outer wall of the limiting frame. An electric cylinder is installed on the bottom surface of the fixing plate. An arc-shaped plate is installed at the pushing end of one electric cylinder, and an arc-shaped plate is installed at the pushing end of the other electric cylinder. The upper ends of the arc-shaped plate and the arc-shaped plate are both limited and slidably installed inside the corresponding limiting frame. A pin is installed on the lower surface of the arc-shaped plate to be inserted into the slot of the perforated plate. When water enters, the second arc-shaped plate in the scraper descends to the top of the perforated plate, and the rotating second arc-shaped plate stirs the mud and water around its circumference. During cleaning, the curved plate in the drain cleaner descends and extends into the slots in the perforated plate to clear the blockage.

[0008] A further technical improvement of the present invention is that: the end of the perforated plate facing the annular cylinder is a downward inclined section, and the end of the inclined section is provided with a straight section.

[0009] A further technical improvement of the present invention is that: a drive tooth is installed on the top of the inner cavity of the processing box, and a number of tooth blocks that mesh with the drive tooth are provided on the outer side wall of the rotating tooth sleeve.

[0010] A further technical improvement of the present invention is that: the lower part of the inner cavity of the guide cavity is provided with a downwardly inclined plate, and the outer surface of the annular cylinder is provided with four equally spaced filter holes for mud and water to pass through; The inner cavity of the flow guide is provided with a tapping element that contacts the filter holes, located above the inclined plate.

[0011] A further technical improvement of the present invention is that: a sealing seat is installed in the middle of the ring cylinder and below the perforated plate, a rotating ring is rotatably provided inside the sealing seat, four movable cavities are provided at the bottom of the rotating ring, and four abutment blocks are fixed on the inner wall surface of the rotating ring. The striking component includes four vibrating plates. Each vibrating plate has a rotating rod fixed to its upper end face that rotates inside the corresponding movable cavity. A torsion spring is provided at the rotational connection between the rotating rod and the movable cavity. A contact block is fixed to the upper end face of the rotating rod, and the contact block abuts against the abutting block.

[0012] A further technical improvement of the present invention is that a lower sealing drain plate and an upper sealing drain plate are respectively provided on one side of the processing box and above the inclined plate and the perforated plate.

[0013] A further technical improvement of the present invention is that: the upper end face of the ring cylinder is fixed to the top surface of the inner cavity of the processing box, and the lower end face of the ring cylinder is fixed to the bottom surface of the inner cavity of the processing box; The upper part of the ring cylinder is provided with a through cavity, and the lower end face of the rotating tooth sleeve is fixed with a connecting rod extending into the through cavity. The lower end face of the connecting rod is fixed to the rotating ring.

[0014] A further technical improvement of the present invention is that: a filter press plate driven by a stroke cylinder is installed inside the lower part of the annular cylinder, and the filter press plate is initially located below the filter holes; A top plate that is raised and lowered inside the annular cylinder and cooperates with the filter press plate for filtration is installed. The front surface of the treatment box is provided with a sludge discharge port, the surface of the ring cylinder is provided with a discharge trough for discharging filter sludge, and the sludge discharge port extends into the interior of the guide cavity and is provided with a sludge discharge channel, which is connected to the discharge trough.

[0015] A further technical improvement of the present invention is that: a drain outlet is provided on the bottom side of the treatment tank away from the water inlet, and the end of the drain outlet is connected to the opening of the ring cylinder.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. By incorporating scraping and unblocking components, an annular flow chamber is formed within the treatment tank to facilitate the entry of mud and water. This prevents mud and water from directly impacting the bottom of the treatment tank or subsequent filtration areas from the inlet, allowing the mud and water to undergo buffering, diversion, and preliminary distribution before filtration. This improves the stability of the filtration process. In conjunction with the rotating toothed sleeve, during normal water intake filtration, the electric cylinder in the scraping component pushes the second arc-shaped plate downwards, causing its lower end to extend into the mud and water area above the porous plate. The second arc-shaped plate then moves in a circular motion along the top of the porous plate, cleaning the kaolin clay remaining on the upper part of the porous plate. The mud and water are stirred and scraped in a circular motion, causing the mud and water accumulated below the inlet to spread around the circumference of the ring cylinder, preventing the mud and water from being concentrated only directly below the inlet for infiltration. It also scrapes and washes away kaolin particles, mud clumps or impurities adhering to the surface of the perforated plate, making it less likely to cover the perforated plate slots for a long time, thus maintaining the effective infiltration area of ​​the perforated plate. When the perforated plate infiltration efficiency is detected to decrease, it switches to the unblocking state of the needle, which acts on the slots of the perforated plate to push away the kaolin mud clumps, deposited particles or adhering substances blocking the slots, thereby achieving periodic cleaning of the perforated plate. 2. By setting up a striking component, when the rotating ring rotates, the four abutting blocks move synchronously with the rotating ring and periodically abut against the contact blocks at the upper end of the corresponding rotating rod. When the abutting blocks push the contact blocks, the contact blocks drive the rotating rod to rotate against the torsion spring force. The rotating rod further drives the vibrating plate to swing away from the filter holes, so that the vibrating plate completes the energy storage action. At this time, the four filter holes do not contact the corresponding vibrating plate, which facilitates the filtration of mud and water. When the abutting blocks continue to rotate and pass the contact blocks, the contact blocks lose their abutting restriction. The rotating rod rotates rapidly under the reset action of the torsion spring. The vibrating plate swings back synchronously with the rotating rod and strikes the area of ​​the corresponding filter holes on the outer surface of the ring cylinder. Through this instantaneous striking action, the kaolin mud adhering to the edge of the filter holes or blocking the filter hole inlet can be loosened, peeled off or shaken off, so that the filter holes can maintain a good flow state again. The area around the filter holes will not be in a static and attached state for a long time. The blockage can be periodically disturbed, thereby ensuring that the mud and water in the guide cavity can continuously enter the interior of the ring cylinder through the filter holes. 3. By setting up an upward-moving filter press plate and a downward-moving top plate, the pneumatic cylinder pushes the filter press plate upward. During the upward movement of the filter press plate, the kaolin mud above it is pushed into the inner upper part of the annular cylinder. At the same time, the top plate is pushed down and reaches below the outlet. The mud gradually approaches the top plate, and the space between the filter press plate and the top plate gradually decreases. The kaolin mud is squeezed, and the squeezed-out water falls through the filter press plate to the bottom of the inner cavity of the annular cylinder. The solid mud is compressed into a relatively concentrated mud cake or filter mud layer between the filter press plate and the top plate. Then the top plate rises, and the filter press plate is pushed up again to the same height as the outlet. The filter mud enters the sludge discharge channel from the outlet and is finally discharged through the sludge discharge port on the front side of the treatment box. The filter mud has a clear discharge path, avoiding the filter mud from being stuck inside the annular cylinder. Attached Figure Description

[0017] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the external structure of the present invention; Figure 2 This is a schematic diagram of the installation structure of the ring cylinder and the processing box of the present invention; Figure 3 For the present invention Figure 2 A magnified view of a section at point A in the middle; Figure 4 For the present invention Figure 2 A magnified view of a section at point B on the middle plate; Figure 5 This is a schematic diagram of the installation structure of the filter holes in this invention; Figure 6 This is a schematic diagram of the mounting structure of the rotating ring of the present invention; Figure 7This is a schematic diagram of the installation structure of the contact block and the push block of the present invention.

[0019] In the diagram: 1. Processing box; 2. Sludge discharge port; 3. Filter press plate; 4. Ring cylinder; 5. Drain outlet; 6. Rotary tooth sleeve; 7. Limiting frame; 8. Electric cylinder; 9. Arc plate one; 10. Insert pin; 11. Arc plate two; 12. Perforated plate; 13. Sealing seat; 14. Rotating ring; 15. Rotating rod; 16. Vibrating plate; 17. Inclined plate; 18. Filter hole; 19. Guide cavity; 20. Movable cavity; 21. Connecting rod; 22. Through cavity; 23. Abutment block; 24. Contact block; 25. Top plate; 26. Fixing plate. Detailed Implementation

[0020] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided.

[0021] Please see Figures 1-7 As shown, the present invention provides a kaolin mud-water filtration device, including a treatment box 1, an inlet on one side of the top of the treatment box 1, and an annular cylinder 4 installed in the middle of the inner cavity of the treatment box 1. A guide cavity 19 is formed between the annular cylinder 4 and the treatment box 1. A porous plate 12 for mud-water infiltration is provided in the upper part of the inner cavity of the guide cavity 19 and below the inlet. A rotating toothed sleeve 6 is rotatably installed on the outer side of the top of the ring cylinder 4, which rotates around the center of the ring cylinder 4. The bottom sides of the rotating toothed sleeve 6 are respectively provided with a scraping and washing component for stirring the mud and water in the upper cavity of the perforated plate 12 and a dredging component for cleaning the grooves of the perforated plate 12. Both the scraping and unblocking components include a limiting frame 7 that fits against the outer wall of the ring cylinder 4. A fixing plate 26 is fixed to the outer wall of the limiting frame 7. An electric cylinder 8 is installed on the bottom surface of the fixing plate 26. An arc plate 9 is installed at the pushing end of one electric cylinder 8, and an arc plate 11 is installed at the pushing end of the other electric cylinder 8. The upper ends of the arc plate 9 and the arc plate 11 are both limited and slidably installed inside the corresponding limiting frame 7. A pin 10 is installed on the lower surface of the arc plate 9 and inserted into the slot of the perforated plate 12. When water enters, the arc-shaped plate 11 in the scraper descends to the top of the perforated plate 12, and the rotating arc-shaped plate 11 stirs the mud and water around its circumference. During cleaning, the arc-shaped plate 9 in the unblocking device descends and extends into the slots in the perforated plate 12 to unclog the blockage.

[0022] During use, the kaolin mud water enters the treatment tank 1 through the inlet on one side of the top. The mud water entering the treatment tank 1 first falls into the upper area of ​​the guide cavity 19 and comes into contact with the perforated plate 12 located below the inlet. This prevents the mud water from directly impacting the bottom of the treatment tank 1 or the subsequent filtration area from the inlet, so that the mud water is buffered, diverted and initially evenly distributed before filtration, thus improving the stability of the filtration process.

[0023] After the mud and water come into contact with the porous plate 12, some of the liquid and smaller suspended particles in the mud and water seep downwards through the holes and grooves on the porous plate 12, while larger agglomerated mud lumps, impurities, and kaolin particles that are prone to accumulation are temporarily trapped in the upper part of the porous plate 12. In this process, the porous plate 12 plays a role in preliminary filtration, buffering the impact of incoming water, and dispersing the flow direction of the mud and water, making the flow of mud and water entering the lower part of the guide cavity 19 more stable, and avoiding local blockage or deposition in the area below the inlet due to concentrated impact of mud and water.

[0024] During the water inlet filtration process, the rotating toothed sleeve 6 rotates around the center of the ring cylinder 4. Since the scraping and unblocking parts are connected to both sides of the bottom of the rotating toothed sleeve 6, the rotating toothed sleeve 6 can drive the corresponding limiting frame 7, fixing plate 26, electric cylinder 8, and arc plate one 9 and arc plate two 11 to make circular motion around the ring cylinder 4 when rotating.

[0025] When the device is in normal water inlet filtration mode, the electric cylinder 8 in the scraping component pushes the arc-shaped plate 11 down, so that the lower end of the arc-shaped plate 11 extends into the mud and water area above the porous plate 12. As the rotating gear sleeve 6 continues to rotate, the arc-shaped plate 11 moves in a circular motion above the porous plate 12, circumferentially stirring and scraping the kaolin mud and water remaining on the upper part of the porous plate 12.

[0026] This stirring and scraping process serves two purposes: firstly, it allows the sludge accumulated below the inlet to diffuse circumferentially around the annular cylinder, preventing it from concentrating directly below the inlet for filtration; secondly, it scrapes away kaolin particles, clumps, or impurities adhering to the surface of the perforated plate 12, preventing them from remaining on the surface of the perforated plate 12 for extended periods, thus maintaining the effective filtration area of ​​the perforated plate 12. The perforated plate 12 does not perform static filtration but works in conjunction with the arc-shaped plate 11 to form dynamic scraping filtration, reducing the probability of kaolin sludge clogging the perforated channels in the initial stages of filtration.

[0027] When some of the slots in the perforated plate 12 become clogged or the filtration speed decreases, the arc-shaped plate 11 in the scraping component rises to maintain a clearance position, while the unblocking component is activated. The electric cylinder 8 in the unblocking component pushes the arc-shaped plate 9 downward, causing the pins 10 on the lower surface of the arc-shaped plate 9 to insert into the slots in the perforated plate 12. Since the arc-shaped plate 9 is mounted on a structure that rotates with the rotating gear sleeve 6, the downward movement of the arc-shaped plate 9 can drive the pins 10 to move circumferentially along the slot distribution area of ​​the perforated plate 12.

[0028] During its movement, the pins 10 sequentially enter or act on the slots of the perforated plate 12, pushing, breaking, and loosening the kaolin clay lumps, sediment particles, or adhering substances blocking the slots, causing the blockages to detach from the slots. The loosened blockages then fall downwards with the seepage of mud and water, restoring the perforated plate 12's ability to pass water and mud, and improving the overall cleaning effect.

[0029] Meanwhile, the upper ends of arc-shaped plate 9 and arc-shaped plate 11 are both slidably installed inside the corresponding limiting frame 7, which is in contact with the outer wall of the ring cylinder 4. The limiting frame 7 restricts the lifting direction and circumferential movement position of arc-shaped plate 9 and arc-shaped plate 11. This prevents arc-shaped plate 9 and arc-shaped plate 11 from deflecting under the resistance of mud and water, allowing arc-shaped plate 11 to stably scrape and stir above the perforated plate 12, and also allowing the needle 10 to accurately insert into the slots of the perforated plate 12 for unblocking.

[0030] After filtration is complete, the arc-shaped plate 9 and arc-shaped plate 11 can rise and reset under the drive of the corresponding electric cylinder 8, avoiding wear caused by long-term contact with the porous plate 12. When water is added again, the device re-enters the scraping and filtration state; when the permeation efficiency of the porous plate 12 is detected to decrease or after a certain period of use, it switches to the unblocking state of the pin 10 to achieve periodic cleaning of the porous plate 12.

[0031] See Figure 4 As shown, the end of the perforated plate 12 facing the annular cylinder 4 is a downward inclined section, and the end of the inclined section is provided with a straight section.

[0032] Liquid and fine particles in the muddy water seep downwards through the perforated grooves on the porous plate 12, while larger kaolin aggregates, impurities, or mud lumps that fail to pass through the grooves in time slide down the inclined section with the muddy water. The porous plate 12 not only serves as a filter but also forms a flow guide using its inclined structure.

[0033] When the mud and water and the trapped mud slide along the inclined section to the lower end, they first enter the straight section area. The straight section can slow down the speed at which the mud and water continue to slide down, so that the mud and water form a relatively stable transition state there.

[0034] See Figure 3 As shown, a drive tooth is installed on the top of the inner cavity of the processing box 1, and several tooth blocks that mesh with the drive tooth are provided on the outer side wall of the rotating tooth sleeve 6.

[0035] When the kaolin mud enters through the inlet and falls above the perforated plate 12, the drive gear drives the rotating sleeve 6 to rotate slowly. The electric cylinder 8 in the scraping component pushes the arc-shaped plate 11 down, so that the arc-shaped plate 11 approaches or contacts the mud layer above the perforated plate 12. As the rotating sleeve 6 rotates, the arc-shaped plate 11 makes a circular motion around the annular cylinder 4, stirring and pushing the mud above the perforated plate 12, causing the mud to diffuse circumferentially along the perforated plate 12, and cooperating with the inclined section of the perforated plate 12 to guide the accumulated mud to the lower end, reducing local deposition below the inlet.

[0036] When the perforated plate 12 needs to be cleared, the scraper rises to avoid obstruction, and simultaneously the electric cylinder 8 in the clearing mechanism is activated, causing the arc-shaped plate 9 to descend and the pin 10 to extend into the slots of the perforated plate 12. At this time, the drive gear continues to drive the rotating gear sleeve 6 to rotate, and the rotating gear sleeve 6 drives the arc-shaped plate 9 and the pin 10 to move circumferentially along the perforated plate 12, so that the pin 10 acts on the slots at different positions in sequence, pushing out, breaking or loosening the kaolin mud, sediment particles or adhering substances in the slots, thereby restoring the permeability of the perforated plate 12.

[0037] See Figure 4 , Figure 5 , Figure 6 and Figure 7 The lower part of the inner cavity of the guide cavity 19 is provided with a downwardly inclined plate 17, and the outer surface of the ring cylinder 4 is provided with four equally spaced filter holes 18 for mud and water to pass through. The inner cavity of the flow guide cavity 19 and above the inclined plate 17 is provided with a tapping element that contacts the filter hole 18; A sealing seat 13 is installed in the middle of the ring cylinder 4 and below the perforated plate 12. A rotating ring 14 is rotatably provided inside the sealing seat 13. The bottom of the rotating ring 14 is provided with four movable cavities 20, and four abutment blocks 23 are fixed on the inner wall surface of the rotating ring 14. The striking component includes four vibrating plates 16. Each vibrating plate 16 has a rotating rod 15 fixed on its upper end face, which rotates inside the corresponding movable cavity 20. A torsion spring is provided at the rotational connection between the rotating rod 15 and the movable cavity 20. A contact block 24 is fixed on the upper end face of the rotating rod 15, and the contact block 24 abuts against the abutting block 23.

[0038] During use, the kaolin mud water is initially filtered through the porous plate 12 and then enters the lower area of ​​the guide cavity 19. Since the lower part of the inner cavity of the guide cavity 19 is provided with a downwardly inclined plate 17, the mud water entering the lower part of the guide cavity 19 will not remain disorderly at the bottom of the treatment tank 1, but will flow along the inclined direction of the inclined plate 17 under the action of gravity, so that the mud water gradually gathers towards the lower end of the inclined plate 17.

[0039] Under the guidance of the inclined plate 17, the mud and water come into contact with the filter holes 18 on the outer surface of the annular cylinder 4 and enter the interior of the annular cylinder 4 through the filter holes 18. The filter holes 18 play a secondary filtration and flow restriction role in this process, so that the mud and water that has been initially filtered by the porous plate 12 can further enter the subsequent treatment area through the annular cylinder 4. Mud and water at different circumferential positions in the guide cavity 19 enter the annular cylinder 4 through the four filter holes 18, reducing the problem of local blockage caused by mud and water entering from a single position.

[0040] During the process of mud and water passing through the filter holes 18, fine kaolin particles, mud clumps, or impurities easily adhere to the edges of the filter holes 18, affecting the throughput of the filter holes 18. The four vibrating plates 16 in the beating component are respectively set corresponding to the filter holes 18 on the outer surface of the ring cylinder 4, and can contact and beat the area near the filter holes 18.

[0041] When the rotating ring 14 rotates, the four abutting blocks 23 move synchronously with the rotating ring 14 and periodically abut against the contact blocks 24 at the upper end of the corresponding rotating rod 15. When the abutting block 23 pushes the contact block 24, the contact block 24 drives the rotating rod 15 to rotate against the torsion spring force. The rotating rod 15 further drives the vibrating plate 16 to swing away from the filter holes 18, so that the vibrating plate 16 completes the power storage action. At this time, the four filter holes 18 do not contact the corresponding vibrating plate 16, which facilitates the filtration of mud and water.

[0042] As the contact block 23 continues to rotate and passes the contact block 24, the contact block 24 loses its contact restriction. The rotating rod 15 rotates rapidly under the reset action of the torsion spring, and the vibrating plate 16 swings back synchronously with the rotating rod 15, striking the area on the outer surface of the ring cylinder 4 corresponding to the filter hole 18. Through this instantaneous striking action, the kaolin clay material attached to the edge of the filter hole 18 or blocked at the inlet of the filter hole 18 can be loosened, peeled off, or shaken off, so that the filter hole 18 can regain a good flow state.

[0043] Because the rotating ring 14 is provided with four abutment blocks 23 and the striking component includes four vibrating plates 16, the rotating ring 14 can cause multiple vibrating plates 16 to simultaneously generate swinging and striking actions during rotation. The area around the filter holes 18 will not remain in a static state for a long time, and the blockage can be periodically disturbed, thereby ensuring that the mud and water in the guide cavity 19 can continuously enter the ring cylinder 4 through the filter holes 18.

[0044] The sealing seat 13 serves two purposes: firstly, it provides a rotational mounting position for the rotating ring 14, enabling the rotating ring 14 to rotate stably around the center of the ring cylinder 4; secondly, it isolates the area below the perforated plate 12 from the mounting area of ​​the rotating ring 14, reducing the direct entry of mud and water into the rotating connection part, reducing the impact of mud and water on the rotating ring 14, the rotating rod 15 and the torsion spring connection, and improving the stability of the striking action.

[0045] A lower sealing drain plate and an upper sealing drain plate are respectively provided on one side of the treatment box 1 and above the inclined plate 17 and the perforated plate 12.

[0046] When the sludge trapped above the perforated plate 12 accumulates to a certain extent, water intake is stopped, and the upper sealing drain plug is opened, allowing the sludge, impurities, and sediments above the perforated plate 12 to be discharged from the upper drain position. At this time, the arc-shaped plate 11 continues to rotate at a low speed to help push the sludge above the perforated plate 12 to the side where the upper sealing drain plug is located, thereby improving the drain efficiency.

[0047] When a lot of mud accumulates above the inclined plate 17, the lower sealing drain plate is opened, allowing the deposited mud above the inclined plate 17, the impurities trapped by the filter holes 18, and the blockages knocked off by the vibrating plate 16 to be discharged through the lower drain position, reducing the disorderly deposition of mud at the bottom of the inner cavity of the treatment box 1.

[0048] See Figure 6 As shown, the upper end face of the ring cylinder 4 is fixed to the top surface of the inner cavity of the processing box 1, and the lower end face of the ring cylinder 4 is fixed to the bottom surface of the inner cavity of the processing box 1. The upper part of the ring cylinder 4 is provided with a through cavity 22, and the lower end face of the rotating tooth sleeve 6 is fixed with a connecting rod 21 that extends into the through cavity 22. The lower end face of the connecting rod 21 is fixed to the rotating ring 14.

[0049] When the rotating gear sleeve 6 rotates, it synchronously drives the rotating ring 14 to rotate via the connecting rod 21. The through cavity 22 provides space for the connecting rod 21 to pass through and move in a circular motion, so that the connecting rod 21 can transmit the rotational power of the rotating gear sleeve 6 to the rotating ring 14 located in the sealing seat 13 without affecting the fixed state of the ring cylinder 4.

[0050] During the rotation of the rotating gear sleeve 6, the scraping and unblocking components on both sides of its bottom move synchronously around the ring cylinder 4. The arc-shaped plate 11 in the scraping component can stir and scrape the mud and water above the perforated plate 12; the arc-shaped plate 9 and the pin 10 in the unblocking component can unblock the holes and grooves of the perforated plate 12 when cleaning is required, reducing the adhesion and accumulation of kaolin mud on the filter channel, improving the mud and water passage efficiency, and reducing the frequency of downtime for cleaning.

[0051] Simultaneously, the connecting rod 21 drives the rotating ring 14 to rotate synchronously. When the rotating ring 14 rotates, the abutment block 23 on its inner wall moves with the rotating ring 14 and periodically abuts against the contact block 24 at the upper end of the rotating rod 15, causing the rotating rod 15 to swing against the torsion spring force. When the abutment block 23 passes the contact block 24, the rotating rod 15 swings back under the action of the torsion spring's restoring force, thereby driving the vibrating plate 16 to beat the filter hole 18 area on the outer surface of the ring cylinder 4, causing the kaolin clay, mud clumps, or impurities attached to the filter holes 18 to be loosened and removed. This allows the anti-clogging of the upper porous plate 12 and the lower filter hole 18 to be carried out simultaneously or continuously, improving the overall anti-clogging ability.

[0052] See Figure 2 and Figure 4 As shown, a filter press plate 3 driven by a stroke cylinder is installed inside the lower part of the ring cylinder 4. Initially, the filter press plate 3 is located below the filter hole 18. A top plate 25 is installed inside the ring cylinder 4 to cooperate with the filter press plate 3 for filtration. The front surface of the treatment box 1 is provided with a sludge discharge port 2, and the surface of the ring cylinder 4 is provided with a discharge trough for discharging filter mud. The sludge discharge port 2 extends into the interior of the guide cavity 19 and is provided with a sludge discharge channel, which is connected to the discharge trough. The filter press plate 3 is provided with drainage holes, and the upper surface of the filter press plate 3 is covered with a filter layer, so that the mud is trapped and the water can be discharged downward.

[0053] After the muddy water enters the interior of the annular cylinder 4 through the filter holes 18, it falls onto the area above the filter press plate 3 located below the filter holes 18. As the filtration process continues, the kaolin muddy water entering the annular cylinder 4 gradually forms a layer of filter mud to be pressed above the filter press plate 3.

[0054] When a certain amount of mud or slurry accumulates above the filter press plate 3, the stroke cylinder pushes the filter press plate 3 upward. During this upward movement, the kaolin mud above it is pushed upward into the annular cylinder 4, while the top plate 25 is pushed downward and reaches below the outlet, causing the mud to gradually approach the top plate 25. Because the top plate 25, which works in conjunction with the filter press plate 3, is installed vertically above the interior of the annular cylinder 4, as the filter press plate 3 continues to rise, the space between the filter press plate 3 and the top plate 25 gradually decreases, and the kaolin mud is subjected to compression.

[0055] Under the squeezing action of the filter press plate 3 and the top plate 25, the water in the kaolin mud is squeezed out, and the mud is gradually compacted to form filter mud with a low moisture content.

[0056] The squeezed-out water falls through the filter press plate 3 to the bottom of the inner cavity of the ring cylinder 4, while the solid mud is compressed into a relatively concentrated mud cake or filter mud layer between the filter press plate 3 and the top plate 25. Then the top plate 25 rises, and the filter press plate 3 is pushed up again to the same height as the outlet. The filter mud enters the discharge channel from the outlet and is finally discharged through the discharge port 2 on the front side of the treatment box 1. The filter mud has a clear discharge path, which avoids the filter mud from being stuck inside the ring cylinder 4.

[0057] See Figure 2 As shown, a drain outlet 5 is provided on the bottom side of the treatment tank 1 away from the water inlet, and the end of the drain outlet 5 is connected to the opening of the ring cylinder 4.

[0058] Kaolin mud water enters through the inlet on one side of the top of the treatment tank 1, first undergoes preliminary filtration through the perforated plate 12, then enters the lower part of the guide cavity 19, and enters the interior of the ring cylinder 4 through the filter holes 18 on the surface of the ring cylinder 4.

[0059] After the mud and water entering the ring cylinder 4 fall above the filter press plate 3, the stroke cylinder pushes the filter press plate 3 upward, so that the filter press plate 3 cooperates with the top plate 25 to filter the mud and water. During the filtration process, the mud is trapped above the filter press plate 3 and gradually compacted, while the water flows downward through the permeable structure on the filter press plate 3 and falls into the bottom of the inner cavity of the ring cylinder 4. The water falling into the bottom of the inner cavity of the ring cylinder 4 can enter the drain outlet 5 through the opening of the ring cylinder 4 and be discharged out of the treatment tank 1 through the drain outlet 5.

[0060] In use, this invention, by setting up a scraping component and a dredging component, forms an annular guide cavity 19 within the treatment tank 1 for the entry of mud and water. This prevents mud and water from directly impacting the bottom of the treatment tank 1 or the subsequent filtration area from the inlet, allowing the mud and water to undergo buffering, diversion, and preliminary uniform distribution before filtration, which helps improve the stability of the filtration process. In conjunction with the rotating toothed sleeve 6, during normal water intake filtration, the electric cylinder 8 in the scraping component pushes the arc-shaped plate 11 downwards, causing the lower end of the arc-shaped plate 11 to extend into the mud and water area above the perforated plate 12. The arc-shaped plate 11 moves in a circular motion along the upper part of the perforated plate 12, facilitating the flow of mud and water remaining on the upper part of the perforated plate 12. The kaolin mud is stirred and scraped in a circular motion, causing the mud accumulated below the inlet to spread around the four sides of the ring cylinder, preventing the mud from being concentrated directly below the inlet for filtration. It also scrapes and washes away kaolin particles, mud clumps, or impurities adhering to the surface of the perforated plate 12, making it less likely to cover the perforated plate 12 slots for a long time, thus maintaining the effective filtration area of ​​the perforated plate 12. When the filtration efficiency of the perforated plate 12 decreases, it switches to the unblocking state of the pin 10, which acts on the slots of the perforated plate 12 to push away the kaolin mud clumps, deposited particles, or adhering substances blocking the slots, thereby achieving periodic cleaning of the perforated plate 12. By incorporating a striking element, when the rotating ring 14 rotates, the four abutting blocks 23 move synchronously with the rotating ring 14 and periodically abut against the contact blocks 24 at the upper end of the corresponding rotating rod 15. When the abutting block 23 pushes the contact block 24, the contact block 24 causes the rotating rod 15 to rotate against the torsion spring force. The rotating rod 15 further drives the vibrating plate 16 to swing away from the filter holes 18, allowing the vibrating plate 16 to complete its energy storage action. At this time, none of the four filter holes 18 contact the corresponding vibrating plate 16, facilitating the filtration of mud and water. When the abutting block 23 continues to rotate and passes the contact block 24, the contact block 24 loses its abutting restriction, and the rotating rod 15 quickly rotates back under the reset action of the torsion spring. The vibrating plate 16 swings back synchronously with the rotating rod 15 and pats the area on the outer surface of the ring cylinder 4 corresponding to the filter hole 18. Through this instantaneous patting action, the kaolin mud adhering to the edge of the filter hole 18 or blocking the entrance of the filter hole 18 can be loosened, peeled off or shaken off, so that the filter hole 18 can maintain a good flow state again. The area around the filter hole 18 will not be in a static state for a long time, and the blockage can be periodically disturbed, thereby ensuring that the mud and water in the guide cavity 19 can continuously enter the interior of the ring cylinder 4 through the filter hole 18. By setting up an upward-moving filter press plate 3 and a downward-moving top plate 25, the pneumatic cylinder pushes the filter press plate 3 upward. During the upward movement of the filter press plate 3, the kaolin mud above it is pushed into the upper part of the annular cylinder 4. At the same time, the top plate 25 is pushed down and reaches below the outlet. The mud gradually approaches the top plate 25, and the space between the filter press plate 3 and the top plate 25 gradually decreases. The kaolin mud is squeezed, and the squeezed water falls through the filter press plate 3 to the bottom of the inner cavity of the annular cylinder 4. The solid mud is compressed into a relatively concentrated mud cake or filter mud layer between the filter press plate 3 and the top plate 25. Then the top plate 25 rises, and the filter press plate 3 is pushed up again to the same height as the outlet. The filter mud enters the sludge discharge channel from the outlet and is finally discharged through the sludge discharge port 2 on the front side of the treatment box 1. The filter mud has a clear discharge path, which avoids the filter mud from being stuck inside the annular cylinder 4.

[0061] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A kaolin mud-water filtration device, comprising a treatment tank (1), characterized in that: The treatment tank (1) has an inlet on one side of the top, and an annular cylinder (4) is installed in the middle of the inner cavity of the treatment tank (1). A flow guide cavity (19) is formed between the annular cylinder (4) and the treatment tank (1). A porous plate (12) for mud and water infiltration is provided in the upper part of the inner cavity of the flow guide cavity (19) and below the inlet. The top outer side of the ring cylinder (4) is rotatably equipped with a rotating toothed sleeve (6) that rotates around the center of the ring cylinder (4). The bottom sides of the rotating toothed sleeve (6) are respectively provided with a scraping and washing component for stirring mud and water in the upper cavity of the perforated plate (12) and a dredging component for cleaning the grooves of the perforated plate (12). Both the scraping and unclogging components include a limiting frame (7) that fits against the outer wall of the ring cylinder (4). A fixing plate (26) is fixed to the outer wall of the limiting frame (7). An electric cylinder (8) is installed on the bottom surface of the fixing plate (26). An arc plate (9) is installed at the pushing end of one of the electric cylinders (8), and an arc plate (11) is installed at the pushing end of the other electric cylinder (8). The upper ends of the arc plate (9) and the arc plate (11) are both limited and slidably installed inside the corresponding limiting frame (7). A pin (10) that is inserted into the slot of the perforated plate (12) is installed on the lower surface of the arc plate (9). When water enters, the arc-shaped plate 2 (11) in the scraper descends to the top of the perforated plate (12), and the rotating arc-shaped plate 2 (11) stirs the mud and water around its circumference. During cleaning, the arc-shaped plate (9) in the unblocking device descends and extends into the slots in the perforated plate (12) to unblock the blockage.

2. The kaolin mud-water filtration device according to claim 1, characterized in that, The perforated plate (12) has a downward inclined section at one end facing the annular cylinder (4), and a straight section is provided at the end of the inclined section.

3. The kaolin mud-water filtration device according to claim 1, characterized in that, The top of the inner cavity of the processing box (1) is equipped with a drive tooth, and the outer side wall of the rotating tooth sleeve (6) is provided with a number of tooth blocks that mesh with the drive tooth.

4. The kaolin mud-water filtration device according to claim 1, characterized in that, The lower part of the inner cavity of the guide cavity (19) is provided with a downwardly inclined plate (17), and the outer surface of the ring cylinder (4) is provided with four equally spaced filter holes (18) for mud and water to pass through. The inner cavity of the flow guide cavity (19) and above the inclined plate (17) is provided with a tapping element that contacts the filter hole (18).

5. The kaolin mud-water filtration device according to claim 1, characterized in that, A sealing seat (13) is installed in the middle of the ring cylinder (4) and below the perforated plate (12). A rotating ring (14) is rotatably provided inside the sealing seat (13). The bottom of the rotating ring (14) is provided with four movable cavities (20), and four abutment blocks (23) are fixed on the inner wall surface of the rotating ring (14). The striking component includes four vibrating plates (16), and each vibrating plate (16) has a rotating rod (15) fixed on its upper end surface that rotates inside the corresponding movable cavity (20). A torsion spring is provided at the rotational connection between the rotating rod (15) and the movable cavity (20). A contact block (24) is fixed on the upper end surface of the rotating rod (15), and the contact block (24) abuts against the abutting block (23).

6. A kaolin mud-water filtration device according to claim 4, characterized in that, The processing box (1) is provided with a lower sealing drain plate and an upper sealing drain plate on one side and above the inclined plate (17) and the perforated plate (12), respectively.

7. The kaolin mud-water filtration device according to claim 1, characterized in that, The upper end face of the ring cylinder (4) is fixed to the top surface of the inner cavity of the processing box (1), and the lower end face of the ring cylinder (4) is fixed to the bottom surface of the inner cavity of the processing box (1). The upper part of the ring cylinder (4) is provided with a through cavity (22), and the lower end face of the rotating tooth sleeve (6) is fixed with a connecting rod (21) extending into the through cavity (22), and the lower end face of the connecting rod (21) is fixed with the rotating ring (14).

8. A kaolin mud-water filtration device according to claim 1, characterized in that, The filter plate (3) driven by the stroke cylinder is installed inside the lower part of the ring cylinder (4). Initially, the filter plate (3) is located below the filter hole (18). The top plate (25) that is in filtration cooperation with the filter press plate (3) is installed at the upper part of the inner ring cylinder (4). The front surface of the treatment box (1) is provided with a mud discharge port (2), and the surface of the ring cylinder (4) is provided with a discharge trough for pressing and discharging the filter mud. The mud discharge port (2) extends into the interior of the guide cavity (19) and is provided with a mud discharge channel, which is connected to the discharge trough.

9. A kaolin mud-water filtration device according to claim 1, characterized in that, The bottom of the treatment tank (1) is provided with a drain outlet (5) on the side away from the water inlet, and the end of the drain outlet (5) is connected to the opening of the ring cylinder (4).

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