Multi-stage multi-medium wastewater treatment filtering device and method

Abstract

The invention relates to a multistage multi-medium wastewater treatment filtering device and method, and relates to the technical field of wastewater treatment. Comprising a standing processing tank, a plurality of groups of filtering tanks for performing hierarchical treatment on wastewater are arranged in the processing tank in the circumferential direction, each filtering tank is composed of a fixed tank body, a movable tank body and a tank cover, a control rod is mounted in the middle of each filtering tank, and a plurality of groups of filtering frames for filtering wastewater are arranged on each control rod at equal intervals; different types of filter media are filled in the filter frame; the bottom of the filtering tank is provided with a control piece for controlling the filtering tank to shake to improve the filtering efficiency, and the inner side of the filtering tank is provided with a cleaning piece for cleaning hardened garbage. According to the invention, a multi-stage multi-medium filtering mode is adopted, the four groups of filtering tanks are used for treating the wastewater in sequence, and the filtering frames in each group of filtering tanks are filled with different types of filtering media, so that different pollutants in the wastewater can be effectively removed, and the filtering efficiency and the treated water quality are greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, and in particular to a multi-stage multi-media wastewater treatment filtering device and method. Background Art

[0002] In industrial production and daily life, a large amount of wastewater containing various pollutants is generated. If this wastewater is directly discharged, it will cause serious pollution to the environment and destroy the ecological balance. Therefore, wastewater treatment is a top priority in environmental protection work.

[0003] The existing wastewater treatment and collection method usually uses multi-media filtration as a common wastewater treatment means, which intercepts and adsorbs impurities such as suspended solids, colloids, and organic matter in the wastewater through a combination of filter media of different properties.

[0004] For example, Chinese patent publication number CN112274997B discloses a filter device, wastewater treatment equipment, and wastewater treatment system. The filter device includes a filter tank and a water inlet pipe mounted on the filter tank. A connecting frame is provided on the inner side of the filter tank. Fixed frames are fixed at both ends of the connecting frame, each of which slides into a strip groove provided on the inner wall of the filter tank. A filter plate is rotatably mounted between the two fixed frames. When the filter plate is in a horizontal position, it abuts against a first L-shaped rod fixed to the connecting frame. The two fixed frames are also connected to a reel assembly mounted on the filter tank via a traction rope fixed thereto. The reel assembly is rotatably connected to the output shaft of a second motor mounted on the filter tank via a second transmission belt. The filter device can simultaneously process large particles of impurities on the filter plate without stopping the machine. The water inlet pipe is automatically closed during the treatment process, effectively improving wastewater treatment efficiency.

[0005] However, the above-mentioned filtering device still has some shortcomings in actual use: 1. In the above-mentioned prior art, a filter plate is used to filter sewage, but it is a single-stage filtration, and only one filtration is performed during the entire process. Although it can filter out one or more pollution sources in the sewage, it is unable to effectively adopt targeted means to accurately filter the pollution sources, resulting in each pollution source in the sewage being able to filter part of it, but not all of it being able to be filtered out, resulting in poor overall filtration effect of the entire sewage. In subsequent treatment, the pollution sources will still regenerate and multiply, aggravating the pollution of the sewage.

[0006] Secondly, during the filtration process of sewage, impurities in the wastewater are easily compacted on the surface of the filter medium, blocking the filter holes, thereby affecting the normal functioning of the filter medium, and then affecting the filtration effect and the continuous operation of the equipment. In addition, each time the machine is shut down for maintenance, too much material will be compacted on the surface of the filter medium, making it difficult to clean, relying on manual operation, and having high labor intensity.

[0007] Therefore, based on the above-stated viewpoint, there is still room for improvement in the existing filtering devices. Summary of the Invention

[0008] In order to solve the above problems, the present invention provides a multi-stage multi-media wastewater treatment filtration device and method, which adopts the following technical solutions: In a first aspect, the present application relates to a multi-stage multi-media wastewater treatment filtration device comprising a stationary processing tank.

[0009] Several groups of filter tanks for performing hierarchical treatment on wastewater are arranged in the processing tank along the circumferential direction, and connecting pipes for conveying wastewater are connected between the filter tanks.

[0010] The filter tank consists of a fixed tank body, a movable tank body and a tank cover. The movable tank body is rotatably installed on the outer wall of the fixed tank body through a hinge, and a processing port is opened on one side of the fixed tank body for treating the compacted waste generated after wastewater filtration. The opening and closing of the processing port is realized by the movable tank body. The tank cover is set on the top of the fixed tank body and the movable tank body.

[0011] A control rod is installed in the middle of the filter tank, and several groups of filter frames for filtering wastewater are arranged at equal intervals on the control rod. Different types of filter media are filled in the filter frames.

[0012] A control part is provided at the bottom of the filter tank to control its shaking to improve the filtering efficiency, and a cleaning part is provided on the inner side of the filter tank to clean the compacted waste.

[0013] Preferably, a processing shaft is rotatably installed in the middle of the processing tank through a bearing. The shaft passes through the inner axis of the processing tank and is vertically distributed. A fixed bracket is installed on the part of the processing shaft located in the inner cavity of the processing tank.

[0014] Several filter tanks are arranged on the fixed bracket along the circumferential direction of the processing shaft, and the several filter tanks are all slidably arranged on the outer wall of the fixed bracket along the height direction of the fixed bracket. The fixed bracket is provided with a strip slide for the filter tanks to slide.

[0015] Preferably, a movable frame is installed on the side wall of the fixed tank body, a control gear rotates in the middle of the movable frame, a linkage rod is engaged 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 body.

[0016] A collar is provided at the connection position between the linkage rod and the tank cover. The collar is integrally connected with the tank cover, and the collar is slidably sleeved on the control rod.

[0017] Preferably, the control member includes an annular control ring rotatably arranged at the bottom of the filter tank, the top of the annular control ring is a concave-convex structure, the top of the annular control ring abuts against a fixed column, and the fixed column is arranged at the bottom of the filter tank.

[0018] A driving motor is installed at the bottom of the processing tank, and the output end of the driving motor is downward and connected to the processing shaft. A driving gear is installed at the bottom of the processing shaft. Several planetary gears are engaged on the outside of the driving gear, and the planetary gears are rotatably installed at the bottom of the processing tank through bearings. A driving ring is engaged on the outside of the planetary gear, and the driving ring is connected to the annular control ring.

[0019] Preferably, the cleaning piece includes cleaning grooves arranged at equal intervals on the control rod, two groups of symmetrically distributed cleaning rods are hinged in the cleaning grooves, the control rod is a hollow structure, an execution column is slidably installed in the middle of the control rod, and an arc-shaped linkage frame is hinged between the side wall of the execution column and the middle of the cleaning rod, and the opening and closing of the cleaning rod is controlled by the movement of the execution column and the arc-shaped linkage frame.

[0020] A reciprocating tension spring is installed on the top of the execution column, and one end of the reciprocating tension spring away from the execution column is connected to the control rod.

[0021] Preferably, a linkage mechanism is provided between the filter tank and the processing tank for controlling the movement stroke of the execution column. The linkage mechanism includes an annular linkage ring installed on the inner wall of the processing tank. The top of the annular linkage ring is a concave-convex structure, and the execution column moves against the annular linkage ring.

[0022] The annular linkage ring is located outside the annular control ring.

[0023] Preferably, a hydraulic cylinder is further provided at the bottom of the processing tank, the output end of the hydraulic cylinder is upward and connected to the annular control ring, and the driving ring at the bottom of the annular control ring is movably engaged with the planetary gear.

[0024] Preferably, a collection frame is connected to the outer wall of the processing tank, and a manipulator is provided in the collection frame. After the manipulator is powered on, it opens the movable tank body and then collects and processes the debris knocked out of the fixed tank body through the processing port of the fixed tank body.

[0025] Preferably, the filter frame includes a working chamber and a sealing chamber opened therein, the working chamber is filled with different types of filter media, an opening and closing motor is provided in the sealing chamber, a limiting gear is installed on the output end of the opening and closing motor, and one side of the limiting gear is engaged with an adjustment plate that controls the gap on the filter frame for active opening and closing and size adjustment.

[0026] In a second aspect, the present application relates to a multi-stage multi-media wastewater treatment filtration method, as shown below: S1. Pretreatment: First, the wastewater is transported through a pipeline to a filter tank on one side of the processing tank; S2, coarse filtration: Then the filter tank filled with wastewater begins to shake up and down, so that the filter medium in the filter frame in the filter tank filters the wastewater. After the wastewater is filtered, the filtered wastewater is transported to the second filter tank. At this time, the 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 filtration of wastewater; 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 part cleans the filter frame inside the filter frame, breaks up the waste hardened on the surface, separates it from the filter frame, and avoids clogging the filter holes of the filter frame; S4. Collection operation: The crushed waste is then collected uniformly.

[0027] In summary, this application includes at least one of the following beneficial technical effects: First, this invention utilizes four sets of filter canisters to achieve multi-stage, multi-media filtration. These four sets of filter canisters process wastewater sequentially, and the filter frames within each set are filled with different types of filter media. This effectively removes different pollutants from the wastewater, significantly improving filtration efficiency and treated water quality. Furthermore, the filter canisters oscillate up and down and rotate about the processing axis during the filtration process, increasing the contact area and duration between the filter media and the wastewater. This also allows the filter media to be more effectively released into the wastewater, resulting in more complete filtration and further enhancing the filtration effect.

[0028] Second, the cleaning element and linkage mechanism of the present invention automatically cleans the accumulated material on the filter frame during operation. The cleaning rod opens and closes to knock and scrape the accumulated material, breaking it up and separating it from the filter frame. This prevents clogging of the filter holes, ensures the normal filtration function of the filter medium, reduces downtime for maintenance due to clogging, and improves the continuous operation of the equipment.

[0029] 3. During the filtration process of the present invention, when one filter tank completes filtration, the filtered wastewater is transported to the next filter tank, and at the same time, new unfiltered wastewater enters the filter tank, realizing continuous treatment of wastewater and continuous filtration operation of the filter tank without stopping the machine, greatly improving the processing capacity and work efficiency of the equipment, and automatically collecting the cleaned waste through the robot, replacing manual collection and reducing the labor intensity of workers.

[0030] 4. The control component of the present invention can flexibly adjust the shaking amplitude and frequency of the filter tank and the working state of the cleaning component according to the properties of the wastewater and the treatment requirements, thereby ensuring the stability and reliability of the filtration process and making the treated water quality more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention will be further described below with reference to the accompanying drawings and examples.

[0032] Figure 1 It is a schematic diagram of the main structure of the present invention.

[0033] Figure 2 It is a schematic structural diagram of the interior of the processing tank of the present invention.

[0034] Figure 3 It is a schematic diagram of the overall structure of the filter tank of the present invention.

[0035] Figure 4 This is a schematic diagram of the structure between the control rod and the filter frame inside the filter tank of the present invention from a first perspective.

[0036] Figure 5 This is a schematic diagram of the structure between the control rod and the filter frame inside the filter tank of the present invention from a second perspective.

[0037] Figure 6 It is a schematic structural diagram of the control component of the present invention from a first perspective.

[0038] Figure 7 2 is a schematic structural diagram of the control component of the present invention from a second perspective.

[0039] Figure 8 It is a structural schematic diagram of the control component of the present invention.

[0040] Figure 9 It is a schematic diagram of the structure inside the filter frame of the present invention.

[0041] Figure 10 It is a structural diagram of the annular control ring, fixed column, drive motor, drive gear, planetary gear and drive ring of the present invention.

[0042] Figure 11 It is a schematic diagram of the structure among the driving gear, planetary gear and driving ring of the present invention.

[0043] Figure 12 It is a structural representation of the cleaning member of the present invention.

[0044] Figure 13 It is a flow chart of the multi-stage multi-media wastewater treatment filtration method of the present invention.

[0045] Explanation of the accompanying symbols: 1. processing tank; 2. filter 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 part; 5. cleaning part; 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. execution column; 53. arc linkage frame; 54. reciprocating tension spring; 6. linkage mechanism; 60. annular linkage ring; 46. hydraulic cylinder; 11. collection frame; 12. manipulator; 7. raw liquid storage tank; 80. opening and closing motor; 81. adjustment plate. DETAILED DESCRIPTION

[0046] The following combination Figures 1-13 This application is described in further detail.

[0047] The present application discloses a multi-stage multi-media wastewater treatment filtration device and method. The device is mainly used in sewage treatment and other processes. Existing sewage treatment devices have the following problems: In the prior art, a filter plate is used to filter sewage, but it is a single-stage filtration, and only one filtration is performed during the entire process. Although it can filter out one or more pollution sources in the sewage, it is unable to effectively use targeted means to accurately filter the pollution sources, resulting in each pollution source in the sewage being able to filter part of it, but not all of it being able to be filtered out, resulting in poor overall filtration effect of the entire sewage. In subsequent treatment, the pollution sources will still regenerate and multiply, aggravating the pollution of the sewage.

[0048] Secondly, during the filtration process of sewage, impurities in the wastewater are easily compacted on the surface of the filter medium, blocking the filter holes, thereby affecting the normal functioning of the filter medium, and then affecting the filtration effect and the continuous operation of the equipment. In addition, each time the machine is shut down for maintenance, too much material will be compacted on the surface of the filter medium, making it difficult to clean, relying on manual operation, and having high labor intensity.

[0049] Therefore, the present application proposes a multi-stage multi-media wastewater treatment filtration device to solve the above problems.

[0050] Reference Figure 1 and Figure 2 As shown, it is the main structure diagram of this application, which is mainly a schematic diagram of the entire processing tank 1 and some pipelines for transporting sewage, a multi-stage multi-media wastewater treatment and filtration device, including a stationary processing tank 1.

[0051] Several groups of filter tanks 2 for performing hierarchical treatment on wastewater are arranged in the processing tank 1 along the circumferential direction, and connecting delivery pipes 10 for delivering wastewater are connected between the filter tanks 2 .

[0052] The processing tank 1 is a stationary cylindrical tank body, and the four groups of filter tanks 2 are all arranged inside the processing tank 1. A maintenance port is provided at the bottom of the processing tank 1, and a maintenance port is also provided on the top of the processing tank 1. Secondly, a maintenance port and an observation window are also provided on the side wall of the processing tank 1, which are not shown in the figure; under normal conditions, the maintenance port is in a closed state to ensure that the inside of the processing tank 1 is isolated from the outside.

[0053] A control member 4 for controlling the shaking of the filter tank 2 to improve the filtering efficiency is provided at the bottom of the filter tank 2, and a cleaning member 5 for cleaning the compacted waste is provided on the inner side of the filter tank 2.

[0054] The cleaning element 5 can automatically clean the accumulated materials on the filter frame 25 during the operation of the equipment. The cleaning rod 51 knocks and scrapes the accumulated materials through the opening and closing action, breaking them up and separating them from the filter frame 25, thus preventing the filter holes from being clogged, ensuring the normal filtering function of the filter medium, reducing the downtime for maintenance due to blockage, and improving the continuous operation capability of the equipment.

[0055] 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 through a hinge, and a treatment port 23 is opened on one side of the fixed tank body 20 for treating the compacted waste generated after wastewater filtration. The opening and closing of the treatment port 23 is realized 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.

[0056] 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. The filter frames 25 are filled with different types of filter media.

[0057] The filter tanks 2 are the core filtration unit of the device. Four groups are evenly distributed along the circumference of the machining axis 26 on the four mounting arms of the fixed bracket 27. Slideways enable them to slide along the height of the bracket, i.e., move up and down. The four groups of filter tanks 2 are connected in series via a delivery pipe 10, forming a multi-stage filtration process. The filtration process is as follows: first-stage coarse filtration filters out oily contaminants → second-stage fine filtration filters out toxic substances → third-stage deep filtration filters out fine particles → fourth-stage adsorption enhances the absorption of melted materials in the wastewater and any remaining filter media from the first three groups.

[0058] The fixed tank body 20 is cylindrical, and a rectangular processing port 23 is provided at the lower part of the side wall for cleaning compacted materials; the movable tank body 21 is connected to the outer wall of the fixed tank body 20 by a hinge, covering the processing port 23, thereby realizing the opening and closing of the processing port 23. When closed, the sealing strip is used to ensure the sealing of the tank body; the tank cover 22 is provided at the top of the tank body, and is slidably connected to the control rod 24 through a ring 33, and can be moved up and down along the control rod 24 to realize opening and closing.

[0059] See Figure 6 、 Figure 7 and Figure 8 As shown, a movable frame 30 is installed on the side wall of the fixed tank body 20, and 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, and 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 body 20.

[0060] A collar 33 is provided at the connection position between the linkage rod 32 and the tank cover 22 . The collar 33 is integrally connected to the tank cover 22 , and the collar 33 is slidably sleeved on the control rod 24 .

[0061] A movable frame 30 is mounted on the sidewall of the fixed tank body 20. A control gear 31 is rotatably mounted within the frame. One side of the gear engages a linkage rod 32. It should be noted that the linkage rod 32 has a rack, and its top end is connected to the tank cover 22 via a collar 33. When the control gear 31 rotates, the linkage rod 32 moves up and down, driving the tank cover 22 to slide along the control rod 24, opening and closing the tank cover and facilitating filter medium replacement.

[0062] Reference Figure 9 As shown, the filter frame 25 includes a working chamber and a sealing chamber opened therein. The working chamber is filled with different types of filter media. An opening and closing motor 80 is provided in the sealing chamber. 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 gap on the filter frame 25 for active opening and closing and size adjustment.

[0063] The filter assembly in this application is the core component for achieving wastewater purification, which is installed inside the filter tank 2 and includes a control rod 24, a filter frame 25 and a filter medium.

[0064] The control rod 24 is a hollow cylindrical rod, which is vertically mounted in the center of the filter tank 2, with the bottom fixed to the bottom plate of the filter tank 2 and the top extending to the outside through the tank cover 22. The control rod 24 is both the mounting carrier of the filter frame 25 and the drive shaft of the cleaning member 5.

[0065] The filter frames 25 are circular frames, and are evenly spaced and arranged in three groups along the height direction of the control rod 24. Each group of filter frames 25 is fixed to the control rod 24 by buckles. Different types of filter media are filled in the filter frames 25.

[0066] The first set of filter frames 25 is filled with oleophilic expanded perlite and slow-release degreasing agent to remove oil stains and odors.

[0067] The second group of filter frames 25 are filled with drug-loaded activated carbon fibers and porous ceramsite loaded with nano zinc oxide to remove toxic substances and disinfect.

[0068] The third group of filter frames 25 is filled with modified diatomaceous earth and flocculant-embedded microspheres, which adsorb fine particles through electric charge to form flocs. At the same time, the diatomaceous earth particles themselves can serve as the core of the flocs to enhance the sedimentation effect.

[0069] The fourth group of filter frames 25 is filled with porous hydroxyapatite and magnetic adsorption resin microspheres to absorb the melt not removed by the previous tank. At the same time, it is biodegradable to avoid secondary pollution and absorbs the filter media released by the first three filter frames 25.

[0070] When the filter tank 2 is shaken up and down, the released filter medium can shake up and down and fully mix with the impurities in the sewage, thereby filtering and purifying the sewage. The filter frame 25 releases a fixed amount of filter medium each time. When the filter frame 25 releases a fixed amount of filter medium, the opening and closing motor 80 is started, which controls the adjustment plate 81 to close, isolating the filter frame 25 and avoiding excessive waste of filter medium.

[0071] However, it should be noted that the filter frame 25 is set in the sewage, so its isolation is not complete. Therefore, there will be some residue in the filter holes on the surface of the filter frame 25, causing some impurities in the sewage to be often adsorbed into the filter holes, causing them to become blocked and hardened.

[0072] See Figure 10 and Figure 11 As shown, a processing shaft 26 is rotatably installed in the middle of the processing tank 1 through a bearing. The processing shaft 26 passes through the inner axis of the processing tank 1 and is vertically distributed. A fixing bracket 27 is installed on the part of the processing shaft 26 located in the inner cavity of the processing tank 1.

[0073] Several filter tanks 2 are arranged on the fixed bracket 27 along the circumferential direction of the processing shaft 26, and the several filter tanks 2 are slidably arranged on the outer wall of the fixed bracket 27 along the height direction of the fixed bracket 27. The fixed bracket 27 is provided with a strip-shaped slide groove for the filter tanks 2 to slide.

[0074] The control member 4 includes an annular control ring 40 rotatably arranged at the bottom of the filter tank 2 . The top of the annular control ring 40 is a concave-convex structure. The top of the annular control ring 40 abuts against a fixing column 41 , which is arranged at the bottom of the filter tank 2 .

[0075] A drive motor 42 is installed at the bottom of the processing tank 1. The output end of the drive motor 42 is downward and 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 engaged with the outer side of the drive gear 43, and the planetary gears 44 are rotatably installed at the bottom of the processing tank 1 through bearings. A drive ring 45 is engaged with the outer side of the planetary gear 44, and the drive ring 45 is connected to the annular control ring 40.

[0076] The control component 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.

[0077] In practice, the drive motor 42 drives the machining shaft 26, which in turn controls the planetary gears 44 via the drive gear 43. The planetary gears 44 then drive the drive ring 45, which in turn rotates the annular control ring 40. Because the top of the control ring has a concave-convex structure, its rotation pushes the fixing post 41 to reciprocate up and down, thereby driving the filter canister 2 to swing up and down along the slide of the fixing bracket 27.

[0078] Reference Figure 10 and Figure 11 As shown, a hydraulic cylinder 46 is further provided at the bottom of the processing tank 1 , the output end of the hydraulic cylinder 46 is upward and connected to 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 .

[0079] Furthermore, a hydraulic cylinder 46 is mounted at the bottom of the processing tank 1. The cylinder body is fixed to the tank bottom, and the top of the piston rod is connected to the annular control ring 40. The expansion and contraction of the hydraulic cylinder 46 drives the annular control ring 40 upward and downward, disengaging the drive ring 45 from the planetary gear 44 (stopping the shaking) or engaging it (starting the shaking), thus achieving flexible control of the shaking state.

[0080] When the equipment needs to be cleaned after a long period of operation, press the maintenance button and the cleaning part 5 will start working. Figure 10 As shown, the cleaning member 5 includes cleaning grooves 50 that are evenly spaced on the control rod 24, and two groups of symmetrically distributed cleaning rods 51 are hinged in the cleaning grooves 50. The control rod 24 is a hollow structure, and an execution column 52 is slidably installed in the middle of the control rod 24. An arc-shaped linkage frame 53 is hinged on the side wall of the execution 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 execution column 52 and the coordination of the arc-shaped linkage frame 53.

[0081] Reference Figure 12 As shown, a reciprocating tension spring 54 is installed on the top of the execution column 52 , and one end of the reciprocating tension spring 54 away from the execution column 52 is connected to the control rod 24 .

[0082] A linkage mechanism 6 is also provided between the filter tank 2 and the processing tank 1 for controlling the movement stroke of the execution column 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 is a concave-convex structure, and the execution column 52 is movable against the annular linkage ring 60; the annular linkage ring 60 is located on the outside of the annular control ring 40.

[0083] The two ends of the arc-shaped linkage frame 53 are respectively hinged to the execution column 52 and the middle of the cleaning rod 51. When the execution column 52 moves up and down, the linkage frame drives the cleaning rod 51 to rotate around the hinge point. The opening and closing angle is zero to ninety degrees, thereby knocking on the surface of the filter frame 25.

[0084] As the filter tank 2 rotates with the machining shaft 26, the bottom of the actuator 52 slides along the concave and convex surface of the annular linkage ring 60, and is pushed up and down by the concave and convex structure, thereby driving the cleaning rod 51 to open and close through the arc-shaped linkage frame 53. A reciprocating tension spring 54 ensures that the actuator 52 always contacts the surface of the annular linkage ring 60.

[0085] In the initial state, the entire filter tank 2 rests on the annular control ring 40 through 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, and the bottom of the filter frame 25 rests on the annular control ring 40 through the execution column 52. The hydraulic cylinder 46 is used to switch the contact position of the filter tank 2, thereby realizing the switching of the shaking of the sewage and the knocking action of the cleaning rod 51.

[0086] Replay Figure 2 As shown, a collection frame 11 is connected to the outer wall of the processing tank 1. A robot 12 is installed in the collection frame 11. When the robot 12 is powered on, it opens the movable tank body 21 and then passes through the processing port 23 of the fixed tank body 20 to collect and process the debris knocked out of the fixed tank body 20. The collection frame 11 is fixed to the outer wall of the processing tank 1, corresponding to the processing port 23, and the robot 12 is installed inside.

[0087] When the cleaning part 5 breaks up the compacted material, the debris gathers at the bottom of the fixed tank body 20 under the action of gravity and the shaking of the filter tank 2; after the manipulator 12 receives the control signal, the Daodong guide rail controls the movable tank body 21 to open, and then the manipulator 12 extends into the processing port 23 to absorb the debris, and finally puts the debris into the storage bag in the collection frame 11. When the bag is full, it automatically alarms to prompt replacement.

[0088] See Figure 13 As shown, the multi-stage multi-media wastewater treatment filtration method in this application is as follows: S1. Pretreatment: The wastewater to be treated is transported to the primary filter tank 2 of the processing tank 1 through a pipeline. During the transportation process, a known pipeline filter provided in the transportation pipeline is used to remove large impurities in the wastewater, such as plastic fragments and fiber bundles, to avoid damage to the components inside the filter tank 2.

[0089] S2, coarse filtration: The filter tank 2 filled with wastewater then starts to shake up and down, so that the filter medium in the filter frame 25 in the filter tank 2 filters the sewage. After the sewage is filtered, the filtered sewage is transported to the second filter tank 2. At this time, the unfiltered sewage can be transported to the first filter tank 2, and then the sewage in multiple filter tanks 2 is filtered, and so on, to achieve continuous filtration of wastewater.

[0090] S3. Pre-cleaning: After the processing tank 1 has been working for a specified period of time, the maintenance button is pressed. At this time, when the filter tank 2 rotates with the processing shaft 26, the execution column 52 slides along the concave and convex surface of the annular linkage ring 60, driving the cleaning rod 51 to open and close, knocking and scraping the compacted matter on the surface of the filter frame 25, so that the compacted matter breaks off and is separated from the filter frame 25 to avoid clogging the filter holes of the filter frame 25.

[0091] S4. Collection operation: The crushed debris gathers at the bottom of the fixed tank body 20. When the sensor (such as an infrared sensor) detects that the amount of debris accumulation reaches the standard, it sends a signal to the robot 12. The robot 12 starts, opens the movable tank body 21, reaches into the processing port 23 to suck the debris, and puts it into the storage bag of the collection frame 11. The crushed waste is collected uniformly. After completion, the movable tank body 21 is closed and subsequent filtering operations are carried out.

[0092] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. Multi-stage multi-media wastewater treatment filtration device, characterized by: It includes a stationary processing tank (1), Several groups of filter tanks (2) for performing hierarchical treatment of wastewater are arranged in the processing tank (1) along the circumferential direction, and connecting delivery pipes (10) for delivering wastewater are connected between the filter tanks (2); 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) through a hinge, and a processing port (23) for processing hardened waste generated after wastewater filtration is opened on one side of the fixed tank body (20). The processing port (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), and a plurality of filter frames (25) for filtering wastewater are arranged at equal intervals on the control rod (24), and the filter frames (25) are filled with different types of filter media; A control member (4) for controlling the shaking of the filter tank (2) to improve the filtering efficiency is provided at the bottom of the filter tank (2), and a cleaning member (5) for cleaning the compacted waste is provided on the inner side of the filter tank (2).

2. The multi-stage multi-media wastewater treatment filtration device according to claim 1, characterized in that: A processing shaft (26) is rotatably mounted in the middle of the processing tank (1) through a bearing. The processing shaft (26) is arranged at the inner axis of the processing tank (1) and is vertically distributed. A fixed bracket (27) is mounted on the portion of the processing shaft (26) located in the inner cavity of the processing tank (1). A plurality of filter tanks (2) are arranged on a fixed bracket (27) along a circumferential direction of a processing rotating shaft (26), and the plurality of filter tanks (2) are all slidably arranged on an outer wall of the fixed bracket (27) along a height direction of the fixed bracket (27), and a strip-shaped slide groove for sliding the filter tanks (2) is provided on the fixed bracket (27).

3. The multi-stage multi-media wastewater treatment filtration device according to claim 1, characterized in that: A movable frame (30) is installed on the side wall of the fixed tank body (20), and a control gear (31) is rotated in the middle of the movable frame (30). A linkage rod (32) is engaged on one side of the control gear (31), and an 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 body (20); A collar (33) is provided at the connection position between the linkage rod (32) and the tank cover (22). The collar (33) and the tank cover (22) are integrally connected, and the collar (33) is slidably sleeved on the control rod (24).

4. The multi-stage multi-media wastewater treatment filtration device according to claim 1, characterized in that: The control member (4) comprises an annular control ring (40) rotatably arranged at the bottom of the filter tank (2); the top of the annular control ring (40) is a concave-convex structure; the top of the annular control ring (40) abuts against a fixing column (41); the fixing 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 downwardly directed and connected to the processing shaft (26). A driving gear (43) is installed at the bottom of the processing shaft (26). The outer side of the driving gear (43) is meshed with a plurality of planetary gears (44). The planetary gears (44) are rotatably mounted on the bottom of the processing tank (1) through bearings. The outer side of the planetary gears (44) is meshed with a driving ring (45). The driving ring (45) is connected to the annular control ring (40).

5. The multi-stage multi-media wastewater treatment filtration device according to claim 1, characterized in that: 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 hinged in the cleaning grooves (50), the control rod (24) is a hollow structure, an execution column (52) is slidably mounted in the middle of the control rod (24), and an arc-shaped linkage frame (53) is hinged between the side wall of the execution column (52) and the middle of the cleaning rod (51), and the opening and closing of the cleaning rod (51) is controlled by the movement of the execution column (52) and the arc-shaped linkage frame (53); A reciprocating tension spring (54) is installed on the top of the execution column (52), and one end of the reciprocating tension spring (54) away from the execution column (52) is connected to the control rod (24).

6. The multi-stage multi-media wastewater treatment filtration device according to claim 1, characterized in that: A linkage mechanism (6) is further provided between the filter tank (2) and the processing tank (1) for controlling the movement stroke of the execution column (52). The linkage mechanism (6) comprises an annular linkage ring (60) mounted on the inner wall of the processing tank (1). The top of the annular linkage ring (60) is a concave-convex structure, and the execution column (52) movably rests against the annular linkage ring (60). The annular linkage ring (60) is located outside the annular control ring (40).

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

8. The multi-stage multi-media wastewater treatment filtration device according to claim 1, characterized in that: A collecting frame (11) is connected to the outer wall of the processing tank (1), and a manipulator (12) is provided in the collecting frame (11). After the manipulator (12) is powered on and started, it opens the movable tank body (21) and then passes through the processing port (23) of the fixed tank body (20) to collect and process the debris knocked down from the fixed tank body (20).

9. The multi-stage multi-media wastewater treatment filtration device according to claim 1, characterized in that: The filter frame (25) includes a working chamber and a sealing chamber provided therein. The working chamber is filled with different types of filter media. An opening and closing motor (80) is provided in the sealing chamber. A limit gear (82) is installed on the output end of the opening and closing motor (80). An adjustment plate (81) for controlling the gap on the filter frame (25) to be actively opened and closed and to adjust the size is engaged with one side of the limit gear (82).

10. A multi-stage multi-media wastewater treatment and filtration method, using the multi-stage multi-media wastewater treatment and filtration device according to any one of claims 1 to 9, characterized in that: The method steps are as follows: S1. Pretreatment: First, the wastewater is transported through a pipeline to a filter tank (2) on one side of the processing tank (1); S2, coarse filtration: The filter tank (2) filled with wastewater then starts to shake up and down, so that the filter medium in the filter frame (25) in the filter tank (2) filters the wastewater. After the wastewater is filtered, the filtered wastewater is transported to the second filter tank (2). At this time, the unfiltered wastewater can be transported to the first filter tank (2), and then the wastewater in multiple filter tanks (2) is filtered. This process is repeated and the wastewater is continuously filtered. S3, pre-cleaning: After the processing tank (1) has been working for a specified period of time, the maintenance button is pressed, and the cleaning member (5) cleans the filter frame (25) inside the filter frame (25), breaking up the waste hardened on the surface and separating it from the filter frame (25), thereby avoiding clogging the filter holes of the filter frame (25); S4. Collection operation: The crushed waste is then collected uniformly.

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