Multi-stage multi-media wastewater treatment filter apparatus and method

Abstract

The application relates to a multi-stage multi-medium wastewater treatment filtering device and method and relates to the technical field of wastewater treatment; the device comprises a static processing tank, a plurality of groups of filtering tanks for carrying out hierarchical treatment on wastewater are arranged in the circumferential direction of the processing tank, the filtering tank is composed of a fixed tank body, a movable tank body and a tank cover, a control rod is arranged in the middle of the filtering tank, a plurality of groups of filtering frames for filtering wastewater are arranged at equal intervals on the control rod, and different types of filtering media are filled in the filtering frames; a control member for controlling the shaking of the filtering tank to improve the filtering efficiency is arranged at the bottom of the filtering tank, and a cleaning member for cleaning hardened garbage is arranged at the inner side of the filtering tank; the multi-stage multi-medium filtering mode is adopted, four groups of filtering tanks sequentially treat the wastewater, the filtering frames in each group of filtering tanks are filled with different types of filtering media, different pollutants in the wastewater can be effectively removed, and the filtering efficiency and the water quality after treatment are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to a multi-stage, multi-media wastewater treatment filtration device and method. Background Technology

[0002] Industrial production and daily life generate large amounts of wastewater containing various pollutants. Direct discharge of this wastewater can cause serious environmental pollution and disrupt the ecological balance. Therefore, wastewater treatment is of paramount importance in environmental protection.

[0003] Existing wastewater treatment and collection methods typically use multi-media filtration as a common wastewater treatment method. By combining filter media with different properties, impurities such as suspended solids, colloids, and organic matter in the wastewater are intercepted and adsorbed.

[0004] For example, Chinese Patent Publication No. CN112274997B discloses a filtration device, wastewater treatment equipment, and wastewater treatment system. The filtration device includes a filter tank and an inlet pipe installed on the filter tank. A connecting frame is provided on the inner side of the filter tank. At both ends of the connecting frame are fixed frames that slide in cooperation with strip grooves provided on the inner wall of the filter tank. A filter plate is rotatably installed between the two fixed frames. When the filter plate is in a horizontal state, it abuts against a first L-shaped rod fixed on the connecting frame. The two fixed frames are also connected to a winding assembly installed on the filter tank via a traction rope fixed thereto. The winding assembly is rotatably connected to the output shaft of a second motor installed on the filter tank via a second transmission belt. The filtration device can conveniently handle large particulate impurities on the filter plate without stopping the machine while performing filtration, and automatically closes the inlet pipe during the treatment process, effectively improving wastewater treatment efficiency.

[0005] However, the above-mentioned filtration device still has some shortcomings in actual use:

[0006] 1. In the aforementioned prior art, filter plates are used to filter sewage, but this is a single-stage filtration process, where the sewage is filtered only once. Although it can filter out one or more pollutants in the sewage, it cannot effectively use targeted methods to precisely filter the pollutants. As a result, each pollutant in the sewage can be partially filtered, but not all of them can be filtered out. This leads to poor overall filtration of the sewage, and in subsequent treatment, the pollutants will still regenerate and multiply, aggravating the pollution of the sewage.

[0007] Secondly, during the filtration process, impurities in the wastewater are prone to caking on the surface of the filter media, clogging the filter pores, which affects the normal functioning of the filter media, thereby affecting the filtration effect and the continuous operation of the equipment. Furthermore, each time the machine is shut down for maintenance, too much caking will occur on the surface of the filter media, making it difficult to clean and requiring manual operation, which is labor-intensive.

[0008] Therefore, based on the above-stated viewpoints, there is still room for improvement in existing filtration devices. Summary of the Invention

[0009] To address the aforementioned problems, this invention provides a multi-stage, multi-media wastewater treatment filtration device and method, employing the following technical solution:

[0010] In one aspect, this application relates to a multi-stage, multi-media wastewater treatment filtration device, including a stationary processing tank.

[0011] The processing tank is equipped with several sets of filter tanks along the circumferential direction to treat wastewater in stages, and the filter tanks are connected by connecting pipes for conveying wastewater.

[0012] The filter tank consists of a fixed tank, a movable tank, and a lid. The movable tank is mounted on the outer wall of the fixed tank via a hinge. A treatment port is opened on one side of the fixed tank for treating the hardened waste generated after wastewater filtration. The movable tank is used to open and close the treatment port. The lid is located on the top of the fixed tank and the movable tank.

[0013] A control rod is installed in the middle of the filter tank. Several filter frames for filtering wastewater are evenly spaced on the control rod, and different types of filter media are filled in the filter frames.

[0014] The bottom of the filter tank is equipped with a control device to control its shaking to improve filtration efficiency, and the inside of the filter tank is equipped with a cleaning device to clean up the caked waste.

[0015] Preferably, a machining shaft is rotatably mounted in the middle of the machining tank via a bearing, passing through the center of the machining tank and vertically distributed. The portion of the machining shaft located inside the machining tank is equipped with a fixed bracket.

[0016] Several filter cans are mounted on a fixed support along the circumferential direction of the processing axis, and the filter cans are slidably mounted on the outer wall of the fixed support along the height direction of the fixed support. The fixed support has strip grooves for the filter cans to slide.

[0017] Preferably, a movable frame is installed on the side wall of the fixed tank, a control gear rotates in the middle of the movable frame, a linkage rod meshes on one side of the control gear, and the end of the linkage rod away from the control gear is connected to the tank cover in the height direction of the fixed tank.

[0018] A collar is provided at the connection point between the linkage rod and the can lid. The collar is integrally connected to the can lid and is slidably sleeved on the control rod.

[0019] Preferably, the control component includes an annular control ring rotatably disposed at the bottom of the filter tank. The top of the annular control ring has a concave-convex structure, and a fixing post is abutted against the top of the annular control ring. The fixing post is disposed at the bottom of the filter tank.

[0020] A drive motor is installed at the bottom of the processing tank. The output end of the drive motor faces downward and is connected to the processing shaft. A drive gear is installed at the bottom of the processing shaft. Several planetary gears mesh with the outer side of the drive gear. The planetary gears are rotatably mounted at the bottom of the processing tank through bearings. A drive ring meshes with the outer side of the planetary gears. The drive ring is connected to the annular control ring.

[0021] Preferably, the cleaning component includes cleaning grooves evenly spaced on the control rod, with two sets of symmetrically distributed cleaning rods hinged in the cleaning grooves. The control rod is a hollow structure, with an actuating column slidably installed in the middle of the control rod. Arc-shaped linkage frames are hinged between the side wall of the actuating column and the middle of the cleaning rod. The opening and closing of the cleaning rod is controlled by the movement of the actuating column in coordination with the arc-shaped linkage frames.

[0022] A reciprocating tension spring is installed at the top of the actuator, and the end of the reciprocating tension spring away from the actuator is connected to the control rod.

[0023] Preferably, a linkage mechanism is also provided between the filter tank and the processing tank to control the movement stroke of the actuator. The linkage mechanism includes an annular linkage ring installed on the inner wall of the processing tank. The top of the annular linkage ring has a concave-convex structure, and the actuator moves against the annular linkage ring.

[0024] The ring-shaped linkage is located outside the ring-shaped control ring.

[0025] Preferably, the bottom of the processing tank is also provided with a hydraulic cylinder, the output end of the hydraulic cylinder is upward and connected to the annular control ring, and the drive ring at the bottom of the annular control ring is in active engagement with the planetary gear.

[0026] Preferably, a collection frame is connected to the outer wall of the processing tank, and a robotic arm is provided in the collection frame. After the robotic arm is powered on and started, it opens the movable tank and then passes through the processing port of the fixed tank to collect the debris knocked down from the fixed tank.

[0027] Preferably, the filter frame includes a working chamber and a sealed chamber inside it. The working chamber is filled with different types of filter media, and the sealed chamber is equipped with an opening and closing motor. A limit gear is installed on the output end of the opening and closing motor. One side of the limit gear is engaged with an adjustment plate that controls the opening and closing of the gap on the filter frame and adjusts its size.

[0028] Secondly, this application relates to a multi-stage, multi-media wastewater treatment filtration method, as follows:

[0029] S1. Pretreatment: First, the wastewater is transported through pipelines to a filter tank on one side of the processing tank;

[0030] S2. Coarse filtration: The filter tank filled with wastewater then begins to shake up and down, causing the filter media in the filter frame inside the filter tank to filter the wastewater. After the wastewater is filtered, the filtered wastewater is transported to the second filter tank. At this time, unfiltered wastewater can be transported to the first filter tank. Then, the wastewater in multiple filter tanks is filtered, and so on, to achieve continuous wastewater filtration.

[0031] S3. Pre-cleaning: After the processing tank has been working for a specified period of time, press the maintenance button. At this time, the cleaning component will clean the filter frame inside the filter frame, break up the waste that has hardened on its surface, and separate it from the filter frame to avoid clogging the filter holes of the filter frame.

[0032] S4. Collection Operation: Then, the crushed waste is collected in a unified manner.

[0033] In summary, this application includes at least one of the following beneficial technical effects:

[0034] I. This invention achieves multi-stage, multi-media filtration through four sets of filter tanks. The four sets of filter tanks treat wastewater sequentially, and each set of filter tanks contains filter frames filled with different types of filter media, effectively removing various pollutants from the wastewater and significantly improving filtration efficiency and the quality of the treated water. Simultaneously, the filter tanks oscillate up and down and rotate around a processing shaft during the filtration process, increasing the contact area and contact time between the filter media and the wastewater. This also allows the filter media to be better released into the wastewater, resulting in more thorough filtration and further enhancing the filtration effect.

[0035] Second, the cleaning component and linkage mechanism of the present invention can automatically clean the sludge on the filter frame during equipment operation. The cleaning rod knocks and scrapes the sludge through opening and closing actions, breaking it down and separating it from the filter frame, thus avoiding clogging of the filter holes, ensuring the normal filtration function of the filter medium, reducing downtime maintenance time caused by clogging, and improving the continuous operation capability of the equipment.

[0036] Third, in the filtration process of this invention, after one filter tank completes filtration, the filtered wastewater is transported to the next filter tank, while new unfiltered wastewater enters the filter tank at the same time, realizing continuous wastewater treatment and continuous filtration operation of the filter tanks without stopping the machine, which greatly improves the processing capacity and working efficiency of the equipment. In addition, the waste collected by the robotic arm is automatically collected, replacing manual collection and reducing the labor intensity of workers.

[0037] Fourth, the control components of this invention can flexibly adjust the shaking amplitude and frequency of the filter tank and the working state of the cleaning components according to the nature of the wastewater and the treatment requirements, so as to ensure the stability and reliability of the filtration process and make the treated water quality more stable. Attached Figure Description

[0038] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0039] Figure 1 This is a schematic diagram of the main structure of the present invention.

[0040] Figure 2 This is a schematic diagram of the internal structure of the processing tank of the present invention.

[0041] Figure 3 This is a schematic diagram of the overall structure of the filter tank of the present invention.

[0042] Figure 4 This is a first-view structural diagram of the relationship between the control rod inside the filter tank and the filter frame of the present invention.

[0043] Figure 5 This is a second-view structural diagram of the relationship between the control rod inside the filter tank and the filter frame of the present invention.

[0044] Figure 6 This is a first-view structural schematic diagram of the control component of the present invention.

[0045] Figure 7 This is a second-view structural schematic diagram of the control component of the present invention.

[0046] Figure 8 This is a schematic diagram of the structure of the control component of the present invention.

[0047] Figure 9 This is a schematic diagram of the internal structure of the filter frame of the present invention.

[0048] Figure 10 This is a schematic diagram of the structure of the annular control ring, fixed column, drive motor, drive gear, planetary gear and drive ring of the present invention.

[0049] Figure 11 This is a schematic diagram of the structure between the drive gear, planetary gear, and drive ring of the present invention.

[0050] Figure 12 This is a schematic diagram of the cleaning component of the present invention.

[0051] Figure 13 This is a flowchart of the multi-stage, multi-media wastewater treatment and filtration method of the present invention.

[0052] Explanation of reference numerals in the attached drawings: 1. Processing tank; 2. Filtering tank; 10. Connecting conveying pipe; 20. Fixed tank body; 21. Movable tank body; 22. Tank cover; 23. Processing port; 24. Control rod; 25. Filter frame; 4. Control component; 5. Cleaning component; 28. Electric guide rail; 26. Processing shaft; 27. Fixed bracket; 30. Movable frame; 31. Control gear; 32. Linkage rod; 33. Collar; 40. Annular control ring; 41. Fixed column; 42. Drive motor; 43. Drive gear; 44. Planetary gear; 45. Drive ring; 50. Cleaning groove; 51. Cleaning rod; 52. Actuating column; 53. Arc-shaped linkage frame; 54. Reciprocating tension spring; 6. Linkage mechanism; 60. Annular linkage ring; 46. Hydraulic cylinder; 11. Collection frame; 12. Robotic arm; 7. Raw material storage tank; 80. Opening and closing motor; 81. Adjusting plate. Detailed Implementation

[0053] The following combination Figures 1-13 This application will be described in further detail.

[0054] This application discloses a multi-stage, multi-media wastewater treatment filtration device and method; it is mainly applied to processes such as wastewater treatment. Existing wastewater treatment devices have the following problems:

[0055] In existing technologies, filter plates are used to filter wastewater, but this is a single-stage filtration process, where the wastewater is filtered only once. Although it can filter out one or more pollutants in the wastewater, it cannot effectively use targeted methods to precisely filter out the pollutants. As a result, each pollutant in the wastewater can be partially filtered out, but not all of them can be removed. This leads to poor overall filtration of the wastewater, and in subsequent treatment, the pollutants can still regenerate and multiply, exacerbating the pollution of the wastewater.

[0056] Secondly, during the filtration process, impurities in the wastewater are prone to caking on the surface of the filter media, clogging the filter pores, which affects the normal functioning of the filter media, thereby affecting the filtration effect and the continuous operation of the equipment. Furthermore, each time the machine is shut down for maintenance, too much caking will occur on the surface of the filter media, making it difficult to clean and requiring manual operation, which is labor-intensive.

[0057] Therefore, this application proposes a multi-stage, multi-media wastewater treatment and filtration device to solve the above-mentioned problems.

[0058] Reference Figure 1 and Figure 2 The diagram shown is a schematic diagram of the main structure of this application, mainly a schematic diagram of the entire processing tank 1 and some sewage conveying pipes, a multi-stage multi-media wastewater treatment and filtration device, including a stationary processing tank 1.

[0059] The processing tank 1 is equipped with several sets of filter tanks 2 along the circumferential direction to treat wastewater in stages, and the filter tanks 2 are connected by a connecting pipe 10 for conveying wastewater.

[0060] The processing tank 1 is a stationary cylindrical tank. Four sets of filter tanks 2 are all located inside the processing tank 1. The bottom of the processing tank 1 is provided with a maintenance port, and the top of the processing tank 1 is also provided with a maintenance port and an observation window, which are not shown in the figure. Under normal conditions, the maintenance ports are closed to ensure that the inside of the processing tank 1 is isolated from the outside.

[0061] The bottom of the filter tank 2 is equipped with a control component 4 to control its shaking to improve filtration efficiency, and the inner side of the filter tank 2 is equipped with a cleaning component 5 for cleaning up the caking waste.

[0062] The cleaning component 5 can automatically clean the sludge on the filter frame 25 during equipment operation. The cleaning rod 51 knocks and scrapes the sludge through opening and closing, breaking it and separating it from the filter frame 25, avoiding clogging of the filter holes, ensuring the normal filtration function of the filter media, reducing downtime maintenance time caused by clogging, and improving the continuous operation capability of the equipment.

[0063] Reference Figure 3 , Figure 4 and Figure 5 As shown, the filter tank 2 is composed of a fixed tank body 20, a movable tank body 21, and a tank cover 22. The movable tank body 21 is rotatably mounted on the outer wall of the fixed tank body 20 via a hinge. A treatment port 23 is opened on one side of the fixed tank body 20 for treating the hardened waste generated after wastewater filtration. The opening and closing of the treatment port 23 is achieved through the movable tank body 21. The tank cover 22 is located on the top of the fixed tank body 20 and the movable tank body 21.

[0064] A control rod 24 is installed in the middle of the filter tank 2. Several sets of filter frames 25 for filtering wastewater are evenly spaced on the control rod 24. Different types of filter media are filled in the filter frames 25.

[0065] The filter tank 2 is the core filtration unit of the device, consisting of four groups. These tanks are evenly distributed around the circumference of the processing shaft 26 on the four mounting arms of the fixed support 27, and slide along the height of the support via sliding grooves, i.e., moving up and down. The four groups of filter tanks 2 are connected in series via a connecting conveying pipe 10, forming a multi-stage filtration process. The filtration process is as follows: primary coarse filtration to filter oil and grease; secondary fine filtration to filter toxic substances; tertiary depth filtration to filter fine particles; and quaternary adsorption to enhance the adsorption of molten matter in the wastewater and the residual filter media from the first three stages.

[0066] The fixed tank 20 is cylindrical, with a rectangular treatment port 23 on the lower part of the side wall for cleaning hardened materials; the movable tank 21 is rotatably connected to the outer wall of the fixed tank 20 by a hinge, covering the treatment port 23 to open and close the treatment port 23, and the sealing strip ensures the tank is airtight when closed; the tank cover 22 is located on the top of the tank and is slidably connected to the control rod 24 by a collar 33, and can be moved up and down along the control rod 24 to open and close.

[0067] See Figure 6 , Figure 7 and Figure 8 As shown, a movable frame 30 is installed on the side wall of the fixed tank 20. A control gear 31 rotates in the middle of the movable frame 30. A linkage rod 32 is engaged on one side of the control gear 31. The end of the linkage rod 32 away from the control gear 31 is connected to the tank cover 22 in the height direction of the fixed tank 20.

[0068] A collar 33 is provided at the connection position between the linkage rod 32 and the can lid 22. The collar 33 is integrally connected with the can lid 22, and the collar 33 is slidably sleeved on the control rod 24.

[0069] A movable frame 30 is installed on the side wall of the fixed tank 20. A control gear 31 is rotatably installed inside the frame. One side of the gear meshes with a linkage rod 32. It should be noted that the linkage rod 32 has a rack on its body, and the top of the linkage rod 32 is connected to the tank cover 22 through a collar 33. When the control gear 31 rotates, the linkage rod 32 moves up and down, causing the tank cover 22 to slide along the control rod 24, thereby opening or closing it and facilitating the replacement of the filter media.

[0070] Reference Figure 9 As shown, the filter frame 25 includes a working chamber and a sealed chamber inside it. The working chamber is filled with different types of filter media. The sealed chamber is equipped with an opening and closing motor 80. A limit gear 82 is installed on the output end of the opening and closing motor 80. One side of the limit gear 82 is engaged with an adjustment plate 81 that controls the opening and closing of the gap on the filter frame 25 and adjusts its size.

[0071] In this application, the filter assembly is the core component for achieving wastewater purification. It is installed inside the filter tank 2 and includes a control rod 24, a filter frame 25, and a filter medium.

[0072] The control rod 24 is a hollow cylindrical rod, vertically installed at the center of the filter tank 2, with its bottom fixed to the bottom plate of the filter tank 2 and its top extending through the tank cover 22 to the outside. The control rod 24 serves as both the mounting carrier for the filter frame 25 and the drive shaft for the cleaning component 5.

[0073] The filter frames 25 are circular frames, and three sets are evenly distributed along the height of the control rod 24. Each set of filter frames 25 is fixed to the control rod 24 by a snap fastener. Different types of filter media are filled inside the filter frames 25.

[0074] The first filter box 25 is filled with oleophilic expanded perlite and slow-release degreaser to remove oil stains and odors.

[0075] The second filter frame 25 is filled with drug-loaded activated carbon fiber and porous ceramic particles loaded with nano zinc oxide to remove toxic substances and disinfect.

[0076] The third filter frame 25 is filled with modified diatomaceous earth and flocculant-encapsulated microspheres. The microspheres adsorb fine particles by charge to form flocs. At the same time, the diatomaceous earth particles themselves can serve as the core of the flocs, enhancing the sedimentation effect.

[0077] The fourth filter frame 25 is filled with porous hydroxyapatite and magnetic adsorption resin microspheres, which adsorb the molten material that was not removed in the previous tank. At the same time, it is biodegradable to avoid secondary pollution, and also adsorbs the filter media released from the first three filter frames 25.

[0078] When the filter tank 2 shakes up and down, the released filter media can shake up and down and mix thoroughly with the impurities in the sewage, thus achieving sewage filtration and purification. The filter frame 25 releases a fixed amount of filter media each time. After the filter frame 25 releases the fixed amount of filter media, the opening and closing motor 80 starts, and its control adjustment plate 81 closes, isolating the filter frame 25 and avoiding excessive waste of filter media.

[0079] However, it should be noted that the filter frame 25 is placed in the sewage, so its isolation is not complete. Therefore, some residue will remain in the filter holes on the surface of the filter frame 25, causing some impurities in the sewage to be adsorbed onto the filter holes, resulting in blockage and caking.

[0080] See Figure 10 and Figure 11 As shown, a machining shaft 26 is rotatably mounted in the middle of the machining tank 1 via a bearing, passing through the axis inside the machining tank 1 and vertically distributed. A fixed bracket 27 is installed on the part of the machining shaft 26 located in the inner cavity of the machining tank 1.

[0081] Several filter cans 2 are arranged on a fixed support 27 along the circumferential direction of the processing shaft 26, and the filter cans 2 are all slidably arranged on the outer wall of the fixed support 27 along the height direction of the fixed support 27. A strip groove is provided on the fixed support 27 for the filter cans 2 to slide.

[0082] The control component 4 includes an annular control ring 40 rotatably disposed at the bottom of the filter tank 2. The top of the annular control ring 40 has a concave-convex structure, and the top of the annular control ring 40 abuts against a fixing post 41, which is located at the bottom of the filter tank 2.

[0083] A drive motor 42 is installed at the bottom of the processing tank 1. The output end of the drive motor 42 faces downward and is connected to the processing shaft 26. A drive gear 43 is installed at the bottom of the processing shaft 26. Several planetary gears 44 are meshed on the outer side of the drive gear 43. The planetary gears 44 are rotatably mounted at the bottom of the processing tank 1 through bearings. A drive ring 45 is meshed on the outer side of the planetary gears 44. The drive ring 45 is connected to the annular control ring 40.

[0084] The control unit 4 is used to drive the filter tank 2 to shake up and down, thereby improving the contact efficiency between the filter medium and the wastewater.

[0085] In practice, the drive motor 42 drives the machining shaft 26 to rotate, which in turn controls the planetary gear 44 to rotate via the drive gear 43. The planetary gear 44 then drives the drive ring 45 to rotate, which in turn drives the annular control ring 40 to rotate. Since the top of the control ring has a concave-convex structure, the rotation will push the fixed column 41 to move up and down, which in turn causes the filter tank 2 to sway up and down along the slide groove of the fixed bracket 27.

[0086] Reference Figure 10 and Figure 11 As shown, the bottom of the processing tank 1 is also provided with a hydraulic cylinder 46. The output end of the hydraulic cylinder 46 is upward and connected to the annular control ring 40. The drive ring 45 at the bottom of the annular control ring 40 is in active engagement with the planetary gear 44.

[0087] In addition, a hydraulic cylinder 46 is installed at the bottom of the processing tank 1. The cylinder body is fixed to the bottom of the tank, and the top of the piston rod is connected to the annular control ring 40. By extending and retracting the hydraulic cylinder 46, the annular control ring 40 can be raised and lowered, causing the drive ring 45 to disengage from the planetary gear 44 (stopping the shaking) or engage with it (starting the shaking), thus achieving flexible control of the shaking state.

[0088] When the equipment requires cleaning after prolonged operation, press the maintenance button. Cleaning component 5 will then begin operation. (Refer to...) Figure 10 As shown, the cleaning component 5 includes cleaning grooves 50 evenly spaced on the control rod 24. Two sets of symmetrically distributed cleaning rods 51 are hinged in the cleaning grooves 50. The control rod 24 is a hollow structure. An actuating column 52 is slidably installed in the middle of the control rod 24. An arc-shaped linkage frame 53 is hinged between the side wall of the actuating column 52 and the middle of the cleaning rod 51. The opening and closing of the cleaning rod 51 is controlled by the movement of the actuating column 52 in coordination with the arc-shaped linkage frame 53.

[0089] Reference Figure 12 As shown, a reciprocating tension spring 54 is installed on the top of the actuator 52, and the end of the reciprocating tension spring 54 away from the actuator 52 is connected to the control rod 24.

[0090] A linkage mechanism 6 is also provided between the filter tank 2 and the processing tank 1 to control the movement stroke of the actuator 52. The linkage mechanism 6 includes an annular linkage ring 60 installed on the inner wall of the processing tank 1. The top of the annular linkage ring 60 has a concave-convex structure, and the actuator 52 moves against the annular linkage ring 60. The annular linkage ring 60 is located outside the annular control ring 40.

[0091] The two ends of the arc-shaped linkage frame 53 are hinged to the middle of the execution column 52 and the cleaning rod 51, respectively. When the execution column 52 moves up and down, the linkage frame drives the cleaning rod 51 to rotate around the hinge point. Its opening and closing angle is from zero to ninety degrees, which realizes the tapping of the surface of the filter frame 25.

[0092] As the filter tank 2 rotates with the processing shaft 26, the bottom of the actuator 52 slides along the concave and convex surface of the annular linkage ring 60, and moves up and down under the push of the concave and convex structure, thereby driving the cleaning rod 51 to open and close through the arc-shaped linkage frame 53. The reciprocating tension spring 54 ensures that the actuator 52 is always in contact with the surface of the annular linkage ring 60.

[0093] In the initial state, the entire filter tank 2 is abutted against the annular control ring 40 by the fixed column 41. After the hydraulic cylinder 46 controls it to move down a certain distance, the fixed column 41 at the bottom of the filter tank 2 is suspended in the air, while the bottom of the filter frame 25 is abutted against the annular control ring 40 by the actuating column 52. The hydraulic cylinder 46 realizes the switching of the contact position of the filter tank 2, thereby realizing the switching of the sloshing of sewage and the knocking action of the cleaning rod 51.

[0094] Looking back Figure 2 As shown, a collection frame 11 is connected to the outer wall of the processing tank 1. A robotic arm 12 is installed in the collection frame 11. After the robotic arm 12 is powered on, it opens the movable tank 21 and then passes through the processing port 23 of the fixed tank 20 to collect the debris knocked down inside the fixed tank 20. The collection frame 11 is fixed to the outer wall of the processing tank 1, corresponding to the position of the processing port 23, and the robotic arm 12 is installed inside.

[0095] After the cleaning component 5 breaks up the hardened material, the debris gathers at the bottom of the fixed tank 20 under the action of gravity and the shaking of the filter tank 2. After receiving the control signal, the robot arm 12 controls the movable tank 21 to open, and then the robot arm 12 extends into the processing port 23 to absorb the debris. Finally, the debris is put into the collection bag in the collection frame 11. When the bag is full, an alarm will automatically remind you to replace it.

[0096] See Figure 13 The following diagram illustrates the multi-stage, multi-media wastewater treatment filtration method of this application:

[0097] S1. Pretreatment: The wastewater to be treated is transported through a pipeline to the primary filter tank 2 of the processing tank 1. During the transportation process, large impurities in the wastewater, such as plastic fragments and fiber bundles, are removed by existing known pipeline filters installed in the transportation pipeline to avoid damaging the internal components of the filter tank 2.

[0098] S2. Coarse filtration: The filter tank 2 filled with wastewater then begins to shake up and down, causing the filter medium in the filter frame 25 inside the filter tank 2 to filter the wastewater. After the wastewater is filtered, the filtered wastewater is transported to the second filter tank 2. At this time, unfiltered wastewater can be transported to the first filter tank 2. Then, the wastewater in multiple filter tanks 2 is filtered, and so on, to achieve continuous wastewater filtration.

[0099] S3. Pre-cleaning: After the processing tank 1 has been working for a specified period of time, press the maintenance button. At this time, when the filter tank 2 rotates with the processing shaft 26, the actuator 52 slides along the concave and convex surfaces of the annular linkage ring 60, driving the cleaning rod 51 to open and close, knocking and scraping the slabs on the surface of the filter frame 25, causing the slabs to break and fall off, separating them from the filter frame 25, and avoiding clogging the filter holes of the filter frame 25.

[0100] S4. Collection Operation: The crushed debris gathers at the bottom of the fixed tank 20. After the sensor (such as an infrared sensor) detects that the debris accumulation reaches the standard, it sends a signal to the robot arm 12. The robot arm 12 starts, opens the movable tank 21, extends into the processing port 23 to pick up the debris, and puts it into the collection bag of the collection frame 11. The crushed waste is collected in a unified manner. After completion, the movable tank 21 is closed to carry out subsequent filtration operations.

[0101] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A multi-stage multi-media wastewater treatment filter apparatus, characterized by: Including a static processing tank (1), The processing tank (1) is provided with a plurality of groups of filter tanks (2) for hierarchical treatment of wastewater in the circumferential direction, and the filter tanks (2) are connected by a connecting conveying pipe (10) for conveying wastewater; The filter tank (2) is composed of a fixed tank body (20), a movable tank body (21) and a tank cover (22). The movable tank body (21) is rotatably installed on the outer wall of the fixed tank body (20) by a hinge. A treatment opening (23) is formed on one side of the fixed tank body (20) for treating the hardened waste generated after the wastewater is filtered. The treatment opening (23) is opened and closed by the movable tank body (21). The tank cover (22) is arranged on the top of the fixed tank body (20) and the movable tank body (21). A control rod (24) is installed in the middle of the filter tank (2). A plurality of filter frames (25) for filtering wastewater are arranged at equal intervals on the control rod (24). Different types of filter media are filled in the filter frames (25). A control member (4) is arranged at the bottom of the filter tank (2) to control the shaking of the filter tank (2) and improve the filtering efficiency. A cleaning member (5) is arranged on the inner side of the filter tank (2) to clean the hardened waste. A processing shaft (26) is rotatably installed in the middle of the processing tank (1) by a bearing. The processing shaft (26) is vertically distributed and penetrates the shaft center inside the processing tank (1). A fixed support (27) is installed on the part of the processing shaft (26) located in the inner cavity of the processing tank (1). A plurality of filter tanks (2) are arranged along the circumferential direction of the processing shaft (26) on the fixed support (27). The plurality of filter tanks (2) are slidably arranged on the outer wall of the fixed support (27) along the height direction of the fixed support (27). A strip-shaped sliding groove is formed on the fixed support (27) for the sliding of the filter tank (2). The control member (4) includes a ring-shaped control ring (40) rotatably arranged at the bottom of the filter tank (2). The top of the ring-shaped control ring (40) is a concave-convex structure. A fixed column (41) is arranged on the top of the ring-shaped control ring (40). The fixed column (41) is arranged at the bottom of the filter tank (2). A driving motor (42) is installed at the bottom of the processing tank (1). The output end of the driving motor (42) is connected to the processing shaft (26) downward. A driving gear (43) is installed at the bottom of the processing shaft (26). A plurality of planetary gears (44) are engaged on the outer side of the driving gear (43). The planetary gears (44) are rotatably installed on the bottom of the processing tank (1) by a bearing. A driving ring (45) is engaged on the outer side of the planetary gears (44). The driving ring (45) is connected to the ring-shaped control ring (40). The cleaning member (5) includes cleaning grooves (50) formed at equal intervals on the control rod (24). Two groups of symmetrically distributed cleaning rods (51) are hingedly arranged in the cleaning grooves (50). The control rod (24) is a hollow structure. An execution column (52) is slidably installed in the middle of the control rod (24). Arc-shaped linkage frames (53) are hingedly arranged between the middle of the cleaning rods (51) and the side wall of the execution column (52). The opening and closing of the cleaning rods (51) are controlled by the movement of the execution column (52) and the arc-shaped linkage frames (53). The top of the execution column (52) is provided with a reciprocating tension spring (54), and one end of the reciprocating tension spring (54) away from the execution column (52) is connected with the control rod (24); A linkage mechanism (6) is further arranged between the filtering tank (2) and the processing tank (1) to control the movement stroke of the execution column (52), the linkage mechanism (6) comprises an annular linkage ring (60) arranged on the inner wall of the processing tank (1), the top of the annular linkage ring (60) is provided with a concave-convex structure, and the execution column (52) is movably arranged on the annular linkage ring (60); The annular linkage ring (60) is located outside the annular control ring (40).

2. The multi-stage multi-media wastewater treatment filter apparatus according to claim 1, characterized in that: An activity frame (30) is arranged on the side wall of the fixed tank body (20), a control gear (31) is rotatably arranged in the middle of the activity frame (30), one side of the control gear (31) is engaged with a linkage rod (32), and one end of the linkage rod (32) away from the control gear (31) is connected with the tank cover (22) in the height direction of the fixed tank body (20); The connection position of the linkage rod (32) and the tank cover (22) is provided with a sleeve ring (33), the sleeve ring (33) is integrally connected with the tank cover (22), and the sleeve ring (33) is slidably arranged on the control rod (24).

3. The multi-stage multi-media wastewater treatment filter apparatus according to claim 1, characterized in that: The bottom of the processing tank (1) is further provided with a hydraulic cylinder (46), the output end of the hydraulic cylinder (46) is upwardly connected with the annular control ring (40), and the driving ring (45) at the bottom of the annular control ring (40) is movably engaged with the planetary gear (44).

4. The multi-stage multi-media wastewater treatment filter apparatus of claim 1, wherein: A collecting frame (11) is connected to the outer wall of the processing tank (1), a mechanical arm (12) is arranged in the collecting frame (11), after the mechanical arm (12) is powered on, the movable tank body (21) is opened, and then the mechanical arm (12) passes through the processing port (23) of the fixed tank body (20) to collect and process the debris knocked down in the fixed tank body (20).

5. The multi-stage multi-media wastewater treatment filter apparatus of claim 1, wherein: The filtering frame (25) comprises a working cavity and a sealing cavity formed in the filtering frame (25), different types of filtering media are filled in the working cavity, an opening and closing motor (80) is arranged in the sealing cavity, a limiting gear (82) is arranged on the output end of the opening and closing motor (80), and one side of the limiting gear (82) is engaged with an adjusting plate (81) for actively opening and closing and adjusting the size of the gap in the filtering frame (25).

6. A multi-stage multi-media wastewater treatment filtration process using the multi-stage multi-media wastewater treatment filtration apparatus of any one of claims 1-5, characterized in that: The method steps are as follows: S1, pretreatment: first, the wastewater is conveyed to the filtering tank (2) on one side of the processing tank (1) through a pipeline; S2, coarse filtration: then, the filtering tank (2) filled with wastewater starts to shake up and down, so that the filtering media in the filtering frame (25) in the filtering tank (2) filter the wastewater, after the wastewater is filtered, the filtered wastewater is conveyed to the second filtering tank (2), at this time, the wastewater that has not been filtered is conveyed to the first filtering tank (2), then the wastewater in the multiple filtering tanks (2) is filtered, and the wastewater is continuously filtered in this way; S3, pre-cleaning: after the processing tank (1) works for a specified time, the maintenance button is pressed, at this time, the cleaning piece (5) cleans the filtering frame (25) inside the filtering frame (25), breaks the surface hardening waste, separates the waste from the filtering frame (25), and avoids blocking the filtering holes of the filtering frame (25). S4, collection work: the broken waste is then collected uniformly.

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