A multi-channel rapid filtration device based on ceramic filter rods

Abstract

This invention relates to the field of filtration equipment technology and discloses a multi-channel rapid filtration device based on ceramic filter rods. The device includes a treatment box with a frame at the front center to support the stable entry of wastewater. By adding and setting a filter cake treatment mechanism, when treating wastewater containing suspended solids and colloidal substances, this mechanism, on the one hand, uses a multi-stage filtration design with coarse and fine filter plates to gradually remove suspended impurities of different particle sizes from the wastewater, reducing the total amount of suspended solids entering the ceramic filter rod body and lowering the probability of filter cake formation at the source. Simultaneously, the cleaning door facilitates impurity removal, ensuring long-term smooth operation of the mechanism. On the other hand, the spiral micro-nano guide channels within the ceramic filter rod body guide the water flow to form a shear flow, flushing the inner wall to prevent vertical deposition of suspended solids. Furthermore, the micro-nano rough texture increases the contact gap between the filter cake and the inner wall, reducing filter cake adhesion and effectively preventing filter cake from clogging the filter pores.

Description

Technical Field

[0001] This invention relates to the field of filtration equipment technology, specifically to a multi-channel rapid filtration device based on ceramic filter rods. Background Technology

[0002] Large quantities of complex wastewater are continuously generated in industrial and civilian sectors such as mining, metallurgy, printing and dyeing, papermaking, and municipal wastewater biochemical treatment. This type of wastewater not only contains a large amount of suspended solids, such as silt from mining, slag from metallurgical processes, and biological sludge from municipal wastewater biochemical treatment, but also various colloidal substances, such as clay particles, humus, and emulsified particles, forming a complex system in which suspended solids and colloidal substances coexist. Wastewater in such a complex system requires special treatment processes.

[0003] When using ceramic filter rods to filter this type of wastewater, suspended solids tend to accumulate rapidly on the surface of the filter rods in a short period of time, forming a dense filter cake layer. This phenomenon directly leads to a sharp increase in filtration pressure differential, and in severe cases, it can even completely block the filter rods, making the filtration system unable to operate normally, significantly reducing wastewater treatment efficiency, and affecting the continuity of subsequent treatment processes.

[0004] Meanwhile, colloidal substances in wastewater, due to their Brownian motion characteristics, easily penetrate the microporous structure of conventional filter rods. These colloidal substances also readily adsorb onto the pore walls of the filter rods. Because of the strong adsorption between the colloids and the pore walls, conventional backwashing processes struggle to effectively remove them, making filter rod regeneration extremely difficult. This frequent clogging continuously degrades filter rod performance, significantly shortening its lifespan. This not only increases equipment maintenance costs for wastewater treatment but also hinders the stable application of filtration technology in such complex wastewater treatment processes. Therefore, those skilled in the art have proposed a multi-channel rapid filtration device based on ceramic filter rods to address the aforementioned technical problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a multi-channel rapid filtration device based on ceramic filter rods, which solves the problem of frequent clogging of filter rods by colloidal substances in wastewater.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multi-channel rapid filtration device based on ceramic filter rods, comprising, The treatment box has a frame at the front center to support the stable entry of wastewater. The upper front center of the frame has a display controller to control and display wastewater treatment information and overall equipment operating power. The interior of the treatment box is equipped with multiple ceramic filter rods at equal intervals for filtering wastewater. The front pressurization mechanism, located at the top of the frame, is used for pre-filtration of incoming wastewater and pressurization treatment of subsequent wastewater. The diversion and depressurization mechanism is located on the upper inner side of the treatment tank and is used to divert and depressurize the wastewater after it has been treated by the front pressurization mechanism. The filter cake treatment unit, which is located inside the treatment tank, is used to treat the filter cake formed by suspended solid pollutants inside the wastewater during the treatment process. The colloid treatment unit, located inside the lower part of the treatment tank, is used to treat colloidal substances contained in wastewater.

[0007] Preferably, the front pressurization mechanism includes a wastewater inlet pipe. A wastewater inlet pipe for treating wastewater discharge is provided at the top center of the frame. A connecting flange is provided at the end of the wastewater inlet pipe away from the treatment tank. An inclined filter plate is provided inside the wastewater inlet pipe. An inclined groove is provided on one side of the top of the wastewater inlet pipe. Multiple collection grooves are equally spaced on the top of the outer wall of the wastewater inlet pipe. A permeation hole is provided at the bottom of each collection groove. A closed box is provided on the top of the outer wall of the wastewater inlet pipe. A cleaning cover is provided on the top of the closed box.

[0008] Preferably, the front pressurization mechanism further includes a reducing section, and a tapered reducing section is provided on the end of the wastewater inlet pipe away from the connecting flange. A discharge pipe is provided in the middle of the reducing section, and one end of the discharge pipe is connected to the interior of the reducing section, while the other end of the discharge pipe is connected to the interior of the treatment tank.

[0009] Preferably, the diversion and pressure reduction mechanism includes a diversion cavity. A diversion cavity is provided on one side of the upper middle part of the inner side of the treatment box. Multiple top cavities are equidistantly arranged on the upper middle part of the inner side of the treatment box. Each top cavity corresponds to the position of each ceramic filter rod. The diversion cavity is connected to the interior of the corresponding top cavity through multiple pressure reduction diversion channels. The interior of the diversion cavity is connected to the interior of the discharge pipe.

[0010] Preferably, the filter cake processing mechanism includes a coarse filter plate, a coarse filter plate is provided in the middle of the inner side of the diversion cavity, and fine filter plates are provided in the middle of the inner side of the top cavity. The pore diameter of the coarse filter plate is larger than that of the fine filter plate. A cleaning door for cleaning impurities inside the diversion cavity and the top cavity is provided in the upper rear side of the processing box.

[0011] Preferably, the filter cake processing mechanism further includes an inner cavity, and an inner cavity is formed in the middle of the inner side of the ceramic filter rod. A spiral micro-nano flow channel is formed on the inner wall of the inner cavity. Multiple micron protrusions and nano pits are equidistantly and alternately arranged on the inner wall of the spiral micro-nano flow channel, and the multiple micron protrusions and nano pits form a micro-nano rough texture on the inner wall of the spiral micro-nano flow channel.

[0012] Preferably, the colloid treatment mechanism includes a synchronizing rod, and a synchronizing rod is provided on the inner middle of the ceramic filter rod body. Ceramic bushings are provided on the upper and lower sides of the middle of the outer wall of the synchronizing rod. An input impeller is provided on the upper ceramic bushing, and a guide impeller is provided on the lower ceramic bushing. An edge protrusion to enhance the turbulence of the wastewater fluid is provided at the edge of the input impeller.

[0013] Preferably, the colloid processing mechanism further includes a mounting frame, which is fixedly connected to the outer wall of the synchronizing rod. The mounting frame has multiple neodymium iron boron permanent magnet strips arranged in a circumferential array, and the polarities of the neodymium iron boron permanent magnet strips are alternately arranged. Multiple sets of magnetic rings are equidistantly arranged inside the ceramic filter rod, and the polarities of the magnetic rings are alternately arranged in opposite directions. A conductive induction ring is provided between each set of magnetic rings.

[0014] Preferably, the colloid processing mechanism further includes a bottom cavity, with the bottom of the processing tank having a bottom cavity at the inner side. A suction pump is provided at the bottom of the inner side of the frame, and the inlet of the suction pump is connected to the interior of the bottom cavity through a guide pipe. A guide pipe is provided at the lower middle part of the front side of the frame, and one end of the guide pipe is connected to the outlet of the suction pump.

[0015] Working Principle: When treating wastewater from industrial production and municipal processes, workers connect the wastewater discharge equipment to this device, allowing the wastewater to be treated to enter for further processing. During wastewater treatment, the front pressurization mechanism is activated, and the wastewater is discharged into the wastewater inlet pipe through the connection flange. As the wastewater flows through the inlet pipe, it first passes through inclined filter plates, separating larger particulate impurities and pollutants. After preliminary filtration, the wastewater enters the main wastewater inlet pipe. In the subsequent diameter-changing section, larger particulate impurities separated by the inclined filter plate remain on the surface of the inclined filter plate. As subsequent wastewater continuously impacts the inclined filter plate, these larger particulate impurities are forced through the inclined groove on the wastewater inlet pipe into the sealed chamber. There, they are intercepted and collected by the collection groove on the wastewater inlet pipe. The wastewater remaining on the larger particulate impurities in the collection groove flows back into the wastewater inlet pipe through the permeation holes at the bottom of the collection groove, and then follows the subsequent wastewater through the inclined filter plate into the sealed chamber. The wastewater, after being treated by the inclined filter plates inside the wastewater inlet pipe, enters the variable diameter section at the rear end of the wastewater inlet pipe. Due to the sudden change in the pipe's inner diameter, the flow rate and pressure of the wastewater entering the variable diameter section increase. By accelerating and pressurizing the wastewater in the variable diameter section, colloids or suspended solids in the wastewater adhere to the inner wall of the pipe and cause blockage. This also prevents excessive pressure difference between the front and rear sections of the equipment during subsequent wastewater treatment, which could damage the equipment. The increased pressure and speed of the wastewater then enter the distribution chamber within the treatment tank through the discharge pipe at the rear end of the variable diameter section, thus completing the wastewater treatment process. The wastewater undergoes pre-treatment and pressure boosting; then the diversion and depressurization mechanism is activated, and the wastewater treated by the pre-pressurization mechanism enters the diversion chamber inside the treatment tank. When the wastewater enters the diversion chamber, the flow rate and pressure of the wastewater are reduced through the internal cavity, thereby avoiding the impact and damage to the equipment in subsequent treatment steps due to excessive flow rate and pressure. Then, the wastewater that has been depressurized and de-flowed in the diversion chamber is diverted to the top chambers of various positions in the treatment tank through the depressurization diversion channel, and then diverted into the ceramic filter rods corresponding to each position for treatment, thus completing the diversion and depressurization treatment of the treated wastewater.Simultaneously, the filter cake treatment mechanism starts. Wastewater treated by the pre-pressurization mechanism enters the diversion chamber through the discharge pipe. First, large particles of impurities in the wastewater are removed again by the coarse filter plate in the diversion chamber. Then, when the wastewater, after being treated by the coarse filter plate, enters the top chamber through the pressure-reducing diversion channel, it is further removed by the fine filter plate in the top chamber. Simultaneously, the fine filter plate in the top chamber evenly distributes suspended solids in the wastewater onto the upper part of the ceramic filter rod, thus preventing the rapid formation of a filter cake due to excessive concentration of suspended solids in the wastewater during filtration. This also prevents the ceramic filter rod from... When local blockage occurs within the body, the wastewater, after being treated by the fine filter plate in the top cavity, enters the inner cavity of the ceramic filter rod. The wastewater entering the inner cavity is guided by the spiral micro-nano guide channel to flow in a spiral direction, forming a shear flow that washes over the inner wall of the ceramic filter rod, preventing suspended solids from vertically depositing and forming a dense filter cake. At the same time, the micro-nano rough texture composed of micron protrusions and nano-pits in the spiral micro-nano guide channel increases the contact gap between the filter cake and the inner wall of the ceramic filter rod, reduces the adsorption area of ​​the filter cake and hydroxyl groups, and reduces the adhesion of the filter cake, thereby preventing the blockage of the overall treatment equipment caused by the filter cake formed by the internal solid suspended solids during the wastewater treatment process.Simultaneously, the colloid treatment mechanism starts. When the treated wastewater in the top cavity enters the top inlet of the ceramic filter rod, the wastewater impacts the input impeller, causing it to rotate. Simultaneously, the input impeller rotates, driving the bottom guide impeller to rotate synchronously via a synchronizing rod. At this time, the guide impeller on the synchronizing rod is further driven by the water flow at the outlet. Simultaneously, the synchronizing rod rotates, driving the mounting bracket and the NdFeB permanent magnet strip on it to rotate synchronously. As the NdFeB permanent magnet strip rotates, it forms a dynamic magnetic coupling with the magnetic ring inside the ceramic filter rod. At this time, the NdFeB permanent magnet strip rotates... During the process, the N and S poles of adjacent magnets rapidly and alternately approach or move away from the magnetic ring inside the ceramic filter rod, thus forming a radial alternating magnetic field inside the ceramic filter rod. This rotating magnetic field can penetrate the double layer of colloidal particles, disrupting the charge distribution. Furthermore, for most industrial wastewater colloids containing anionic colloids, the magnetic field attracts the negative charges on their surface to migrate into the particle interior, compressing the double layer thickness, reducing the Zeta potential, and disrupting the colloid's stability. Simultaneously, when the neodymium iron boron permanent magnet strips on the mounting frame rotate at high speed, they cut the magnetic lines of force of the magnetic ring, affecting the adjacent conductive surfaces. The conductive induction ring generates an induced electric field. Although it has no external power source, it creates an instantaneously alternating polarity electric field region through electromagnetic induction. When charged colloidal particles flow through this region, they are subjected to electric field forces. On one hand, anionic colloids are attracted in the positive direction by the electric field, while cations are attracted in the negative direction, neutralizing the surface charge of the particles. On the other hand, the electric field forces drive the colloidal particles to collide rapidly, agglomerating them into large flocs. After the wastewater undergoes dual treatment by the alternating magnetic field and the induced electric field, the colloidal particles have destabilized and agglomerated, and their surface charges are neutralized. At this point, the colloidal particles in the wastewater no longer adsorb onto the hydroxyl groups of the ceramic filter rod. Therefore, large particulate flocs in the wastewater are initially intercepted by the multi-stage filtration equipment in the upstream section. Furthermore, fine agglomerates, upon entering the microporous filtration zone of the ceramic filter rods, are easily retained due to their increased particle size and lack of charge adsorption, allowing for easy removal during subsequent backwashing and preventing clogging. Finally, the wastewater, after multiple treatments by the ceramic filter rods, is discharged into the bottom cavity of the treatment tank for storage. A suction pump on the frame, along with the coordinated action of the guide suction pipe and guide discharge pipe, directs the treated wastewater to the subsequent collection equipment, thus completing the treatment of colloidal particles in the wastewater.

[0016] This invention provides a multi-channel rapid filtration device based on ceramic filter rods. It has the following beneficial effects: 1. By adding and setting a front pressurization mechanism, this invention can not only achieve the initial separation of large particulate impurities in wastewater containing suspended solids and colloidal substances through the inclined filter plate, but also effectively intercept and collect the separated large particulate impurities by means of the synergistic effect of the inclined trough, the closed box and the collection groove. At the same time, the wastewater with residual impurities can be returned to the main pipeline through the permeation holes to avoid water waste. Moreover, the variable diameter section can increase the speed and pressure of the wastewater, which can prevent colloids and suspended solids from adhering to the inner wall of the pipeline and causing blockage, and can also avoid damage caused by excessive pressure difference before and after the equipment during subsequent treatment, thus providing stable water inlet conditions for subsequent filtration treatment.

[0017] 2. By adding and setting a diversion and pressure reduction mechanism, this invention can, when treating wastewater containing suspended solids and colloidal substances, firstly, through the cooperation of the diversion chamber and multiple pressure reduction diversion channels, evenly distribute the pre-pressurized wastewater to each top chamber and corresponding ceramic filter rod, ensuring balanced load on each filtration channel and avoiding rapid filter cake formation caused by local pressure concentration. Secondly, the cavity structure of the diversion chamber can be used to reduce the speed and pressure of the wastewater, reducing the impact damage of high-speed and high-pressure water flow to subsequent filter plates and ceramic filter rods, ensuring stable operation of the filtration components, and providing a stable water flow environment for the multi-stage filtration of the filter cake treatment mechanism, thereby improving the overall filtration system synergy.

[0018] 3. By adding and setting a filter cake treatment mechanism, this invention treats wastewater containing suspended solids and colloidal substances. On the one hand, the mechanism uses a multi-stage filtration design with coarse and fine filter plates to gradually remove suspended impurities of different particle sizes from the wastewater, reducing the total amount of suspended solids entering the ceramic filter rod and lowering the probability of filter cake formation at the source. At the same time, the cleaning door facilitates the removal of impurities and ensures long-term smooth operation of the mechanism. On the other hand, the spiral micro-nano guide channel in the inner cavity of the ceramic filter rod guides the water flow to form a shear flow, scouring the inner wall to prevent vertical deposition of suspended solids. The micro-nano rough texture increases the contact gap between the filter cake and the inner wall, reducing the adhesion of the filter cake and effectively preventing the filter cake from clogging the filter pores. It also facilitates subsequent backwashing and peeling, extending the service life of the filter rod.

[0019] 4. By adding and setting a colloid treatment mechanism, this invention can not only utilize the kinetic energy of the wastewater itself to drive the input impeller and the guide impeller to rotate, thereby driving the neodymium iron boron permanent magnet strip and the magnetic ring to form a dynamic magnetic coupling, generating a radial alternating magnetic field to disrupt the stability of the colloidal double electric layer, achieving energy-saving operation without additional power, but also form an induced electric field in the conductive induction ring by cutting the magnetic lines of force through the permanent magnet strip. The electric field force neutralizes the surface charge of the colloidal particles, promoting particle collision and aggregation to form large flocs, completely avoiding the clogging of filter pores by the adsorption of colloids. At the same time, the aggregated flocs are easily intercepted and easily peeled off by backwashing, significantly improving filtration efficiency and ensuring the long-term stable operation of the filtration system. Attached Figure Description

[0020] Figure 1 This is a side view of the structure of the present invention; Figure 2 This is a cross-sectional schematic diagram of the internal structure of the wastewater inlet pipe of the present invention; Figure 3 This is a cross-sectional schematic diagram of the internal structure of the wastewater inlet pipe of the present invention; Figure 4 This is a schematic cross-sectional view of the upper inner side of the processing box of the present invention; Figure 5 This is a schematic cross-sectional view of the inner longitudinal box of the processing box of the present invention; Figure 6 This is a partial structural diagram of the ceramic filter rod of the present invention; Figure 7 This is a cross-sectional schematic diagram of the internal structure of the ceramic filter rod of the present invention; Figure 8 This is a partial structural diagram of the synchronizing rod of the present invention; Figure 9 This is a cross-sectional schematic diagram of the internal structure of the ceramic filter rod of the present invention.

[0021] The components include: 1. Frame; 2. Suction pump; 3. Guide pipe; 4. Display controller; 5. Wastewater inlet pipe; 6. Connecting flange; 7. Cleaning cover; 8. Enclosed box; 9. Variable diameter section; 10. Treatment box; 11. Guide suction pipe; 12. Discharge pipe; 13. Inclined filter plate; 14. Inclined groove; 15. Collection groove; 16. Percolation hole; 17. Pressure reducing and diverting channel; 18. Coarse filter plate; 19. Diversion chamber. ; 20. Top cavity; 21. Fine filter plate; 22. Ceramic filter rod body; 23. Bottom cavity; 24. Synchronizing rod; 25. Ceramic bushing; 26. Inner cavity; 27. Input impeller; 28. Mounting bracket; 29. ​​Magnet ring; 30. Neodymium iron boron permanent magnet strip; 31. Guide impeller; 32. Conductive induction ring; 33. Edge protrusion; 34. Spiral micro-nano guide groove; 35. Micron protrusion; 36. Nano pit. Detailed Implementation

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see the appendix Figure 1 This invention provides a multi-channel rapid filtration device based on ceramic filter rods, including a treatment box 10. A frame 1 is provided in the middle of the front side of the treatment box 10 to support the stable entry of wastewater. A display controller 4 is provided in the upper middle of the front side of the frame 1 to control and display wastewater treatment information and overall equipment operating power. Multiple ceramic filter rods 22 for filtering wastewater are equidistantly arranged inside the treatment box 10. Please see the appendix Figure 2 - Appendix Figure 3 The front pressurization mechanism is located on the top of the frame 1 and is used for pre-filtration of the incoming wastewater and pressurization treatment of the subsequent wastewater. The front pressurization mechanism includes a wastewater inlet pipe 5. The top center of the frame 1 is provided with a wastewater inlet pipe 5 for treating wastewater discharge. A connecting flange 6 is provided on the end of the wastewater inlet pipe 5 away from the treatment tank 10. An inclined filter plate 13 is provided inside the wastewater inlet pipe 5. An inclined groove 14 is provided on one side of the top of the wastewater inlet pipe 5. Multiple collection grooves 15 are equally spaced on the top of the outer wall of the wastewater inlet pipe 5. A permeation hole 16 is provided at the bottom of each collection groove 15. A closed box 8 is provided on the top of the outer wall of the wastewater inlet pipe 5. A cleaning cover 7 is provided on the top of the closed box 8.

[0024] When the front pressurization mechanism is started, the wastewater to be treated is discharged into the wastewater inlet pipe 5 through the connection with the connecting flange 6. During the flow of the wastewater entering the wastewater inlet pipe 5, the larger particulate impurities in the wastewater are first separated by the inclined filter plate 13 in the wastewater inlet pipe 5. After the initial filtration and separation, the wastewater enters the subsequent diameter-reducing section 9 in the wastewater inlet pipe 5. However, the larger particulate impurities separated by the inclined filter plate 13 remain on the surface of the inclined filter plate 13. As the subsequent wastewater continuously impacts the inclined filter plate 13, the larger particulate impurities separated from the surface of the inclined filter plate 13 enter the closed box 8 through the inclined groove 14 on the wastewater inlet pipe 5.

[0025] Then, the larger particulate impurities are intercepted and collected through the collection groove 15 on the wastewater inlet pipe 5. At this time, the wastewater remaining on the larger particulate impurities in the collection groove 15 flows back into the wastewater inlet pipe 5 through the permeation hole 16 at the bottom of the collection groove 15, and then enters the variable diameter section 9 at the rear end of the wastewater inlet pipe 5 through the inclined filter plate 13.

[0026] The front pressurization mechanism also includes a reducing section 9. A tapered reducing section 9 is provided on the end of the wastewater inlet pipe 5 away from the connecting flange 6. A discharge pipe 12 is provided in the middle of the reducing section 9. One end of the discharge pipe 12 is connected to the interior of the reducing section 9, and the other end of the discharge pipe 12 is connected to the interior of the treatment tank 10.

[0027] After being treated by the inclined filter plate 13 inside the wastewater inlet pipe 5, the wastewater enters the diameter-reducing section 9 at the rear end of the wastewater inlet pipe 5. Due to the sudden change in the inner diameter of the pipe, the flow rate and pressure of the wastewater entering the diameter-reducing section 9 increase. By increasing the speed and pressure of the wastewater in the diameter-reducing section 9, it is possible to prevent colloids or suspended solids in the wastewater from adhering to the inner wall of the pipe and clogging the pipe. At the same time, it is also possible to avoid excessive pressure difference between the front and rear filtration sections of the equipment during subsequent wastewater treatment, which could cause equipment damage. Then, the wastewater after being increased in speed and pressure enters the diversion chamber 19 in the treatment tank 10 through the discharge pipe 12 at the rear end of the diameter-reducing section 9. This completes the pre-treatment and speed-up and pressure-reducing treatment of the wastewater.

[0028] Please see the appendix Figure 4 - Appendix Figure 5 The diversion and depressurization mechanism is located on the upper inner side of the treatment tank 10 and is used to divert and depressurize the wastewater after it has been treated by the front pressurization mechanism. The diversion and pressure reduction mechanism includes a diversion cavity 19. The diversion cavity 19 is provided on one side of the upper middle part of the inner side of the treatment box 10. Multiple top cavities 20 are equidistantly arranged on the upper middle part of the inner side of the treatment box 10. The top cavities 20 correspond to the positions of each ceramic filter rod 22. The diversion cavity 19 is connected to the interior of the corresponding top cavity 20 through multiple pressure reduction diversion channels 17. The interior of the diversion cavity 19 is connected to the interior of the discharge pipe 12.

[0029] When the diversion and depressurization mechanism is activated, the wastewater treated by the front pressurization mechanism enters the diversion chamber 19 in the treatment tank 10. When the wastewater enters the diversion chamber 19, the flow rate and pressure of the wastewater are reduced through the internal cavity, thereby avoiding the impact and damage to the equipment in the subsequent treatment steps due to excessive flow rate and pressure. Then, the wastewater that has been depressurized and de-flowed in the diversion chamber 19 is diverted to the top chamber 20 at various positions in the treatment tank 10 through the depressurization diversion channel 17. After that, it is diverted through the top chamber 20 into the ceramic filter rod 22 at each position for treatment, thereby completing the diversion and depressurization treatment of the treated wastewater.

[0030] Please see the appendix Figure 6 and attached Figure 9 The filter cake treatment unit is located inside the treatment tank 10 and is used to treat the filter cake formed by suspended solid pollutants inside the wastewater during the treatment process. The filter cake processing mechanism includes a coarse filter plate 18. The coarse filter plate 18 is arranged in the middle of the inner side of the diversion chamber 19, and fine filter plates 21 are arranged in the middle of the inner side of the top chamber 20. The filter pore diameter of the coarse filter plate 18 is larger than that of the fine filter plate 21. A cleaning door for cleaning impurities inside the diversion chamber 19 and the top chamber 20 is arranged in the upper rear side of the processing box 10.

[0031] When the filter cake treatment mechanism is started, the wastewater treated by the pre-pressurization mechanism is discharged into the diversion chamber 19 through the discharge pipe 12. First, the coarse filter plate 18 in the diversion chamber 19 removes large particulate impurities from the wastewater again. Then, when the wastewater treated by the coarse filter plate 18 enters the top chamber 20 through the pressure reduction diversion channel 17, the fine filter plate 21 in the top chamber 20 removes impurity particles from the wastewater again. At the same time, the fine filter plate 21 in the top chamber 20 evenly distributes the suspended solids in the wastewater on the upper part of the ceramic filter rod 22, thereby avoiding the rapid formation of filter cake due to excessive concentration of suspended solids in the wastewater when the ceramic filter rod 22 filters the wastewater. It also avoids the occurrence of local blockage in the ceramic filter rod 22.

[0032] The filter cake processing mechanism also includes an inner cavity 26. The inner side of the ceramic filter rod body 22 is provided with an inner cavity 26. The inner wall of the inner cavity 26 is provided with a spiral micro-nano guide groove 34. Multiple micron protrusions 35 and nano pits 36 are equidistantly and alternately arranged on the inner wall of the spiral micro-nano guide groove 34. The multiple micron protrusions 35 and nano pits 36 form a micro-nano rough texture on the inner wall of the spiral micro-nano guide groove 34.

[0033] After being treated by the fine filter plate 21 in the top cavity 20, the wastewater enters the inner cavity 26 of the ceramic filter rod body 22. The wastewater entering the inner cavity 26 is guided by the spiral micro-nano guide channel 34 to flow in a spiral direction to form a shear flow, which washes the inner wall of the ceramic filter rod body 22 and prevents suspended solids from vertically depositing and forming a dense filter cake. At the same time, the micro-nano rough texture composed of the micron protrusions 35 and nano pits 36 in the spiral micro-nano guide channel 34 increases the contact gap between the filter cake and the inner wall of the ceramic filter rod body 22, reduces the adsorption area of ​​the filter cake and hydroxyl groups, and reduces the adhesion of the filter cake, thereby preventing the blockage of the overall treatment equipment caused by the formation of filter cake by the internal solid suspended solids during the wastewater treatment process.

[0034] Please see the appendix Figure 7 - Appendix Figure 8The colloid treatment unit is located inside the lower part of the treatment tank 10 and is used to treat the colloidal substances contained in the wastewater.

[0035] The colloid treatment mechanism includes a synchronizing rod 24. The synchronizing rod 24 is provided on the inner middle of the ceramic filter rod body 22. The upper and lower sides of the outer wall of the synchronizing rod 24 are provided with ceramic bushings 25. An input impeller 27 is provided on the upper ceramic bushing 25, and a guide impeller 31 is provided on the lower ceramic bushing 25. An edge protrusion 33 to enhance the turbulence of the wastewater fluid is provided at the edge of the input impeller 27.

[0036] When the colloid treatment mechanism is started, when the treated wastewater in the top cavity 20 enters the top inlet of the ceramic filter rod body 22, the wastewater impacts the input impeller 27 to rotate. While the input impeller 27 is rotating, it drives the bottom guide impeller 31 to rotate synchronously through the synchronizing rod 24. At this time, the guide impeller 31 on the synchronizing rod 24 is assisted by the water flow at the outlet. At the same time, while the synchronizing rod 24 is rotating, it drives the mounting bracket 28 and the neodymium iron boron permanent magnet strip 30 on it to rotate synchronously.

[0037] Both the input impeller 27 and the guide impeller 31 are coated with polytetrafluoroethylene to prevent corrosion and damage caused by wastewater during long-term use.

[0038] The colloid processing mechanism also includes a mounting frame 28. The mounting frame 28 is fixedly connected to the outer wall of the synchronizing rod 24. Multiple neodymium iron boron permanent magnet strips 30 are arranged in a circumferential array on the mounting frame 28, and the polarities of the neodymium iron boron permanent magnet strips 30 are alternately arranged. Multiple sets of magnetic rings 29 are equidistantly arranged inside the ceramic filter rod body 22, and the polarities of the magnetic rings 29 are alternately arranged in opposite directions. A conductive induction ring 32 is provided between each set of magnetic rings 29.

[0039] While rotating, the neodymium iron boron permanent magnet strip 30 forms a dynamic magnetic coupling with the magnetic ring 29 inside the ceramic filter rod body 22. During this rotation, the N and S poles of adjacent magnets rapidly and alternately approach or move away from the magnetic ring 29 inside the ceramic filter rod body 22, thereby forming a radial alternating magnetic field inside the ceramic filter rod body 22. This rotating magnetic field can penetrate the double layer of colloidal particles, disrupt the charge distribution, and for most industrial wastewater colloids containing anionic colloids, the magnetic field will attract the negative charge on their surface to migrate into the particle interior, compress the double layer thickness, reduce the Zeta potential, and destroy the stability of the colloid.

[0040] At the same time, when the neodymium iron boron permanent magnet strip 30 on the mounting frame 28 rotates at high speed, it will cut the magnetic lines of force of the magnetic ring 29, and generate an induced electric field in the adjacent conductive induction ring 32. Although the conductive induction ring 32 has no external power source, it forms an electric field region with instantaneous alternating polarity through electromagnetic induction. When charged colloidal particles flow through the electric field region, they will be affected by the electric field force. On the one hand, the anionic colloids are attracted in the positive direction by the electric field, and the cations are attracted in the opposite direction, neutralizing the surface charge of the particles. On the other hand, the electric field force promotes the colloidal particles to collide rapidly and condense to form large flocs.

[0041] After the wastewater is treated by both alternating magnetic field and induced electric field, the colloidal particles have destabilized and coagulated, and the surface charge has been neutralized. At this time, the colloidal particles in the wastewater no longer adsorb with the hydroxyl groups of the ceramic filter rod. Therefore, the large flocs in the wastewater are initially intercepted by the multiple filtration devices in the upstream equipment. Moreover, after the fine aggregates enter the 22 microporous filtration zone of the ceramic filter rod, they are easily intercepted due to their increased particle size and have no charge adsorption effect. They can be easily peeled off during subsequent backwashing to avoid clogging.

[0042] The colloid processing mechanism also includes a bottom cavity 23. The bottom cavity 23 is located at the bottom inner side of the processing box 10. A suction pump 2 is installed at the bottom inner side of the frame 1. The inlet of the suction pump 2 is connected to the inside of the bottom cavity 23 through a guide pipe 11. A guide pipe 3 is installed at the lower front part of the frame 1. One end of the guide pipe 3 is connected to the outlet of the suction pump 2.

[0043] Finally, the wastewater, after multiple treatments by the ceramic filter rod 22, is discharged into the bottom cavity 23 at the bottom of the treatment tank 10 for storage. Under the action of the suction pump 2 on the frame 1, and through the coordinated cooperation of the guide suction pipe 11 and the guide discharge pipe 3, the treated wastewater is discharged into the subsequent collection equipment, thereby completing the treatment of colloidal particles in the wastewater.

[0044] 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 multi-channel rapid filtration device based on ceramic filter rods, characterized in that, include, The treatment box (10) has a frame (1) in the middle of the front side for supporting the stable entry of wastewater. The upper middle of the front side of the frame (1) has a display controller (4) for controlling and displaying wastewater treatment information and overall equipment operating power. Multiple ceramic filter rods (22) for filtering wastewater are equidistantly arranged inside the treatment box (10). The front pressurization mechanism is located at the top of the frame (1) and is used for front filtration of the incoming wastewater and pressurization treatment of the subsequent wastewater. The diversion and depressurization mechanism is located on the upper inner side of the treatment tank (10) and is used to divert and depressurize the wastewater after it has been treated by the front pressurization mechanism. A filter cake treatment unit is installed inside the treatment tank (10) to treat the filter cake formed by suspended solid pollutants inside the wastewater during the treatment process; A colloid treatment unit is located on the lower inner side of the treatment tank (10) and is used to treat colloidal substances contained in wastewater.

2. The multi-channel rapid filtration device based on ceramic filter rods according to claim 1, characterized in that, The front pressurization mechanism includes a wastewater inlet pipe (5). The top center of the frame (1) is provided with a wastewater inlet pipe (5) for treating wastewater discharge. A connecting flange (6) is provided on the end of the wastewater inlet pipe (5) away from the treatment tank (10). An inclined filter plate (13) is provided inside the wastewater inlet pipe (5). An inclined groove (14) is provided on one side of the top of the wastewater inlet pipe (5). Multiple collection grooves (15) are equally spaced on the top of the outer wall of the wastewater inlet pipe (5). A permeation hole (16) is provided at the bottom of each collection groove (15). A closed box (8) is provided on the top of the outer wall of the wastewater inlet pipe (5). A cleaning cover (7) is provided on the top of the closed box (8).

3. The multi-channel rapid filtration device based on ceramic filter rods according to claim 2, characterized in that, The front pressurization mechanism also includes a variable diameter section (9). A tapered variable diameter section (9) is provided on the end of the wastewater inlet pipe (5) away from the connecting flange (6). A discharge pipe (12) is provided in the middle of the variable diameter section (9). One end of the discharge pipe (12) is connected to the interior of the variable diameter section (9), and the other end of the discharge pipe (12) is connected to the interior of the treatment tank (10).

4. The multi-channel rapid filtration device based on ceramic filter rods according to claim 1, characterized in that, The diversion and pressure reduction mechanism includes a diversion cavity (19). The diversion cavity (19) is provided on the upper middle side of the inner side of the treatment box (10). Multiple top cavities (20) are equidistantly arranged on the upper middle part of the inner side of the treatment box (10). The top cavities (20) correspond to the positions of each ceramic filter rod (22). The diversion cavity (19) is connected to the interior of the corresponding top cavity (20) through multiple pressure reduction diversion channels (17). The interior of the diversion cavity (19) is connected to the interior of the discharge pipe (12).

5. A multi-channel rapid filtration device based on a ceramic filter rod according to claim 4, characterized in that, The filter cake processing mechanism includes a coarse filter plate (18), a coarse filter plate (18) is provided in the middle of the inner side of the diversion chamber (19), and a fine filter plate (21) is provided in the middle of the inner side of the top chamber (20). The filter hole diameter of the coarse filter plate (18) is larger than that of the fine filter plate (21). A cleaning door for cleaning impurities inside the diversion chamber (19) and the top chamber (20) is provided in the upper rear side of the processing box (10).

6. A multi-channel rapid filtration device based on a ceramic filter rod according to claim 5, characterized in that, The filter cake processing mechanism also includes an inner cavity (26). The inner middle of the ceramic filter rod body (22) is provided with an inner cavity (26). The inner wall of the inner cavity (26) is provided with a spiral micro-nano guide groove (34). Multiple micron protrusions (35) and nano pits (36) are equidistantly and alternately arranged on the inner wall of the spiral micro-nano guide groove (34). The multiple micron protrusions (35) and nano pits (36) form a micro-nano rough texture on the inner wall of the spiral micro-nano guide groove (34).

7. A multi-channel rapid filtration device based on a ceramic filter rod according to claim 1, characterized in that, The colloid treatment mechanism includes a synchronizing rod (24). The synchronizing rod (24) is provided on the inner middle of the ceramic filter rod body (22). The upper and lower sides of the outer wall of the synchronizing rod (24) are provided with ceramic bushings (25). An input impeller (27) is provided on the upper ceramic bushing (25), and a guide impeller (31) is provided on the lower ceramic bushing (25). An edge protrusion (33) to enhance the turbulence of the wastewater fluid is provided at the edge of the input impeller (27).

8. A multi-channel rapid filtration device based on a ceramic filter rod according to claim 7, characterized in that, The colloid processing mechanism also includes a mounting frame (28). The mounting frame (28) is fixedly connected to the outer wall of the synchronizing rod (24). The mounting frame (28) has a plurality of neodymium iron boron permanent magnet strips (30) arranged in a circular array. The polarities of the neodymium iron boron permanent magnet strips (30) are alternately arranged. The interior of the ceramic filter rod body (22) is provided with a plurality of sets of magnetic rings (29) at equal intervals. The polarities of the magnetic rings (29) are alternately arranged in opposite directions. A conductive induction ring (32) is provided between each set of magnetic rings (29).

9. A multi-channel rapid filtration device based on a ceramic filter rod according to claim 8, characterized in that, The colloid processing mechanism also includes a bottom cavity (23). The bottom of the processing box (10) has a bottom cavity (23). A suction pump (2) is provided on the bottom of the inner side of the frame (1). The inlet of the suction pump (2) is connected to the inside of the bottom cavity (23) through a guide pipe (11). A guide pipe (3) is provided on the lower front side of the frame (1). One end of the guide pipe (3) is connected to the outlet of the suction pump (2).

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