Sewage treatment device with layered filtering function

Abstract

The invention discloses a sewage treatment device with a layered filtering function, and relates to the technical field of sewage treatment.The sewage treatment device comprises a machine body, an aeration cavity is formed in the top of the machine body, a flocculation cavity is formed in the machine body, a filtering device is further arranged in the machine body, the top of the filtering device is communicated with the aeration cavity, and the middle of the filtering device is communicated with the flocculation cavity; in the process that the aeration cavity and the flocculation cavity carry out treatment at the same time, the filter column rotates to convey gas into the aeration cavity, so that the filter column drives the stirring plate to rotate while sewage is mixed with oxygen in the aeration cavity, the sewage in the flocculation cavity and a flocculating agent are subjected to a mixed reaction, and after the sewage and the flocculating agent react, the stirring plate rotates to drive the stirring plate to rotate. Through mutual cooperation of the driving plate and the driven plate in the filtering column, sewage enters the filtering column through a gap between the driving plate and the driven plate, impurities are separated in the flocculation cavity, and when the sewage passes through the arc-shaped plate, the sewage is subjected to the action of the filtering holes in the arc-shaped plate, so that the layered multi-time filtering effect is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and specifically to a sewage treatment device with a layered filtration function. Background Art

[0002] Sewage treatment is generally divided into production sewage treatment and domestic sewage treatment. Production sewage includes industrial sewage, agricultural sewage, medical sewage, etc., while domestic sewage is the sewage generated in daily life, which is a complex mixture of various forms of inorganic and organic substances, including: large and small solid particles floating and suspended, colloidal and gel-like diffusates, and pure solutions; Existing sewage treatment devices usually adopt multiple treatment devices for step-by-step treatment, but the energy consumption and floor area caused by multiple devices are relatively large, and when one device needs maintenance, the entire production line will be affected. Summary of the Invention

[0003] The purpose of the present invention is to provide a sewage treatment device with a layered filtration function to solve the problems raised in the prior art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A sewage treatment device with a layered filtration function, including a machine body. An aeration chamber is provided at the top of the machine body, a flocculation chamber is provided inside the machine body, the aeration chamber is communicated with the flocculation chamber, a filtration device is also provided inside the machine body, the top of the filtration device is communicated with the aeration chamber, and the middle part of the filtration device is communicated with the flocculation chamber.

[0005] Preferably, an input port is provided in the middle of the aeration chamber, an output port is provided at the bottom of the flocculation chamber, a moving block is provided inside the output port, a support column is provided on the side of the moving block close to the input port, a blocking plate and a plurality of rotating blades are provided at the top of the support column, the rotating blades are provided on the side of the blocking plate close to the input port, and the blocking plate and the rotating blades are rotatably connected to the input port; Before the sewage is transported to the aeration chamber for aeration treatment, the hydraulic cylinder at the bottom of the moving block will push the support column to move at this time, so that the support column drives the blocking plate and the rotating blades to move, so that the rotating blades extend into the input port, and the blocking plate closes the input port. Thus, the aeration chamber and the flocculation chamber are in an isolated state, and the sewage in the aeration chamber is subjected to aeration treatment. At the same time, the controller controls the second motor to start, the drive shaft of the second motor drives the output blades to rotate, so that the output blades drive the moving block and the support column to rotate, and then the blocking plate and the rotating blades also rotate. After the rotating blades rotate, they immediately stir the sewage in the aeration chamber, so that the sewage is fully mixed with oxygen; After a period of aeration treatment, the controller controls the push rod of the hydraulic cylinder to retract and reset, and then the support column drives the blocking plate and the rotating blade to descend. After the blocking plate descends, the input port is connected with the flocculation chamber, and the sewage in the aeration chamber moves to the flocculation chamber through the input port. While the sewage is input into the flocculation chamber, the staff adds the flocculant synchronously. After the sewage is transported, the blocking plate closes the input port again; After the sewage and impurities in the flocculation chamber are separated and discharged through the filter column, the controller controls motor No. 1 to start, and the driving shaft of motor No. 1 drives the gear to rotate. The gear meshes with the rack at the bottom of the moving block, so that the moving block moves under the action of the gear, and the moving block moves to the side close to the input port. During the movement, the push rod of the hydraulic cylinder also moves, so that the output port is opened without affecting the closure of the blocking plate. Subsequently, the impurities in the flocculation chamber move under the action of the output blade and the stirring plate. The impurities move to the side close to the output port under the action of the stirring plate, and the output blade moves the impurities from the flocculation chamber to the output port, so that the impurities are discharged through the output port. After the impurities are discharged, the moving block is reset to block the output port.

[0006] Preferably, a hydraulic cylinder is provided on the top of the moving block, a push rod of the hydraulic cylinder is connected to a supporting column, a rack is provided on the bottom side wall of the moving block, a No. 1 motor is provided in the inner wall of the body, a driving shaft of the No. 1 motor is connected to a gear, the gear is meshed with the rack, a plurality of output leaves are provided in the middle of the moving block, a No. 2 motor is provided at the bottom of the moving block, a driving shaft of the No. 2 motor is connected to the output leaves, and the output leaves drive the top of the moving block and the supporting column to rotate.

[0007] Preferably, the filtering device is composed of a plurality of filtering columns, and a plurality of rotating tubes are arranged on the body, the rotating tubes correspond to the filtering columns one by one, and the filtering columns are rotatably connected to the rotating tubes.

[0008] Preferably, the filter column consists of two rotating columns and a moving group, the two rotating columns are symmetrically arranged at the upper and lower ends of the moving group, the rotating column is rotatably connected to the rotating tube, a magnetic conductor is arranged in the rotating column, and an electromagnetic coil is arranged on the inner wall of the rotating tube.

[0009] During the sewage treatment process, the controller controls the electromagnetic coil in the rotating tube to be energized, and the electromagnetic coil is energized to generate magnetic force, which attracts the magnetic conductor in the rotating column, thereby driving the rotating column to rotate, and the moving group is driven to rotate during the rotation of the rotating column.

[0010] Preferably, the moving group is composed of a plurality of active plates and driven plates, a plurality of sliding grooves are arranged on a side of the rotating column close to the moving group, the plurality of sliding grooves are arranged around the axis of the rotating column, and a rotating groove is arranged between two adjacent sliding grooves.

[0011] Preferably, an active rod is provided in the sliding groove, a driven rod is provided in the sliding groove on a side adjacent to the active rod, the driven rod and the active rod are directly connected by a hinged rod, a fixed rod is provided in the middle of the hinged rod, the hinged rod is rotatably connected to the rotating groove through the fixed rod, and an electromagnetic spring is provided on the side of the active rod away from the driven rod.

[0012] When the sewage needs to be mixed with the flocculant, the side wall of the active plate is in contact with the side wall of the driven plate, so that the filter column and the flocculation chamber are isolated by several active plates and driven plates, and the sewage and the flocculant can only be stirred and mixed in the flocculation chamber; After the sewage and the flocculant have been mixed and reacted for a period of time, the tiny impurities in the sewage are gathered into large impurities under the action of the flocculant. Then the controller controls the electromagnetic spring to be energized. The electromagnetic spring contracts after being energized, that is, the electromagnetic spring pulls the active rod to move, and the active rod moves along the sliding groove to the side close to the axis of the filter column. When the active rod moves, it drives the active plate to move. At the same time, the active rod drives the hinged rod to rotate. The side of the hinged rod close to the driven rod rotates to the side close to the flocculation chamber, so that the hinged rod pushes the driven rod to move, that is, the active rod and the driven rod move to opposite sides, and then the active plate and the driven plate also move to opposite sides. At this time, there is a gap between the active plate and the driven plate. By adjusting the size of the electromagnetic spring, the contraction deformation of the electromagnetic spring is adjusted, and then the size of the gap between the active plate and the driven plate is adjusted. By adjusting the size of the gap, the separation of sewage and impurities is achieved; When the sewage enters the filter column through the gap between the active plate and the driven plate, the sewage moves under the action of gravity and the auger, and moves toward the rotating column near the bottom of the flocculation chamber. At this time, the gate on the arc plate on the bottom side is in a closed state, and the sewage will be discharged outward through the filter holes on the arc plate. That is, through the cooperation between the active plate and the driven plate and the filtering effect of the filter holes, the effect of layered multiple filtration is achieved; Since several filter columns are provided, when one of the filter columns is undergoing maintenance and cleaning, other filter columns can still participate in sewage treatment, thus avoiding interruption of sewage treatment due to equipment shutdown.

[0013] Preferably, the active plate is connected to the active rod, the driven plate is connected to the driven rod, and a stirring plate is provided on a side of the driven plate away from the active plate.

[0014] By setting a stirring plate, when the filter column is isolated from the flocculation chamber, the filter column rotates under the action of the electromagnetic coil, and then the filter column drives the stirring plate to rotate through the driven plate, so that a plurality of stirring plates move in the flocculation chamber. When the stirring plate rotates, the sewage and flocculant in the flocculation chamber are stirred and mixed. When the filter column is connected to the flocculation chamber, the rotation of the stirring plate can, on the one hand, drive the sewage to be transported from the flocculation chamber to the filter column, and on the other hand, can push the impurities in the sewage to move to the side away from the filter column, thereby further improving the separation efficiency of sewage and impurities.

[0015] Preferably, a rotating frame is provided inside the filter column, a No. 3 motor is provided on the side of the rotating frame close to the rotating column, a transmission wheel is provided on the driving shaft of the No. 3 motor, the rotating frame is rotatably connected to the rotating column through the transmission wheel, and a connecting column is provided on the rotating frame.

[0016] When several active plates and driven plates are in contact with each other at the side walls, the filter column and the flocculation chamber are in a cut-off state, that is, no sewage flows in the filter column. At this time, the controller controls the No. 3 motor to start, and the driving shaft of the No. 3 motor drives the transmission wheel to rotate, and the transmission wheel drives the rotating frame to rotate around the axis of the filter column. When the rotating frame rotates, it drives the connecting column, the auger and several arc plates to rotate.

[0017] Preferably, an auger is provided between the two connecting columns, the two augers rotate in opposite directions, a plurality of arc plates are provided on the side of the connecting column away from the auger, a plurality of micropores are provided on the surface of the arc plate close to the aeration chamber, the diameter of the micropores close to the connecting column is larger than the diameter of the micropores away from the connecting column, an opening is provided on the side of the arc plate close to the bottom of the flocculation chamber, a gate plate is provided in the opening, and filter holes are provided on the surface of the arc plate close to the bottom of the flocculation chamber.

[0018] The connecting column drives the auger and the arc plate to rotate, so that the auger drives the air in the filter column to move. At the same time, the controller controls the gate plate to open, so that the air at the bottom of the body can be transported to the filter column through the gate plate. The air in the filter column flows from the rotating column close to the bottom of the flocculation chamber to the rotating column close to the aeration chamber. After the air moves to the bottom of the arc plate, it is transported to the aeration chamber through the micropores to aerate the sewage in the aeration chamber. Since the diameter of the micropore close to the connecting column is larger than the diameter of the micropore away from the connecting column, the sewage cannot be transported to the filter column through the arc plate, which ensures that the sewage is treated according to the treatment process. When the air is vertically transported to the aeration chamber, the blocking plate blocks the input port to separate the aeration chamber from the flocculation chamber, so that the sewage is treated in the aeration chamber and the flocculation chamber respectively.

[0019] Compared with the prior art, the present invention has the following beneficial effects: 1. During the simultaneous treatment of the aeration chamber and the flocculation chamber, the filter column rotates to transport gas into the aeration chamber, so that the sewage is mixed with oxygen in the aeration chamber. At the same time, the filter column also drives the stirring plate to rotate, so that the sewage and flocculant in the flocculation chamber are mixed and reacted. After the reaction of the sewage and the flocculant is completed, the active plate and the driven plate in the filter column cooperate with each other, so that the sewage enters the filter column through the gap between the active plate and the driven plate, and the impurities are separated in the flocculation chamber. When the sewage passes through the arc plate, it is affected by the filter holes on the arc plate, achieving a layered filtering effect.

[0020] 2. Since several filter columns are provided, when one of the filter columns is undergoing maintenance and cleaning, other filter columns can still participate in sewage treatment, thus avoiding interruption of sewage treatment due to equipment shutdown. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A perspective view of the present invention; Figure 2 It is a schematic diagram of the structure of the filtration device, the aeration chamber and the flocculation chamber; Figure 3 It is a schematic diagram of the internal structure of the present invention; Figure 4 is a schematic diagram of the structure of the filter column; Figure 5 Schematic diagram of the internal structure of the filter column; Figure 6 is an internal front view of the filter column; Figure 7 It is a structural schematic diagram of the sliding slot, the active rod and the driven rod; Figure 8 It is a top view of the sliding slot, the active rod and the driven rod; Fig. 9 It is a structural schematic diagram when the active plate and the driven plate are separated; Fig.10 It is a structural schematic diagram when the active plate and the driven plate are in a closed state; In the figure: 1, machine body; 11, aeration chamber; 12, flocculation chamber; 13, input port; 14, output port; 15, moving block; 16, support column; 161, blocking plate; 162, rotating blade; 17, output blade; 18, rotating tube; 2. Filter device; 21. Filter column; 22. Rotating column; 23. Moving group; 24. Active plate; 25. Driven plate; 251. Stirring plate; 26. Sliding groove; 261. Rotating groove; 27. Active rod; 28. Driven rod; 29. ​​Articulated rod; 30. Rotating frame; 31. Connecting column; 32. Auger; 33. Curved plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Example: Figure 1-Figure 10 As shown, the present invention provides a technical solution for a sewage treatment device with a layered filtering function, comprising a body 1, wherein an aeration chamber 11 is arranged on the top of the body 1, a flocculation chamber 12 is arranged inside the body 1, the aeration chamber 11 is connected with the flocculation chamber 12, a filtering device 2 is further arranged inside the body 1, the top of the filtering device 2 is connected with the aeration chamber 11, and the middle part of the filtering device 2 is connected with the flocculation chamber 12.

[0024] As a specific embodiment of the present invention, an input port 13 is provided in the middle of the aeration chamber 11, an output port 14 is provided at the bottom of the flocculation chamber 12, a moving block 15 is provided in the output port 14, a support column 16 is provided on the side of the moving block 15 close to the input port 13, a blocking plate 161 and a plurality of rotating blades 162 are provided on the top of the support column 16, the rotating blades 162 are provided on the side of the blocking plate 161 close to the input port 13, and the blocking plate 161 and the rotating blades 162 are rotatably connected to the input port 13.

[0025] As a specific embodiment of the present invention, a hydraulic cylinder is provided on the top of the moving block 15, and a push rod of the hydraulic cylinder is connected to a support column 16. A rack is provided on the bottom side wall of the moving block 15. A No. 1 motor is provided in the inner wall of the body 1, and a drive shaft of the No. 1 motor is connected to a gear, and the gear is meshed with the rack. A plurality of output leaves 17 are provided in the middle of the moving block 15, and a No. 2 motor is provided at the bottom of the moving block 15. The drive shaft of the No. 2 motor is connected to the output leaves 17, and the output leaves 17 drive the top of the moving block 15 and the support column 16 to rotate.

[0026] As a specific embodiment of the present invention, the filtering device 2 is composed of a plurality of filtering columns 21, and a plurality of rotating tubes 18 are arranged on the body 1, and the rotating tubes 18 correspond to the filtering columns 21 one by one, and the filtering columns 21 are rotatably connected with the rotating tubes 18; the filtering column 21 is composed of two rotating columns 22 and a moving group 23, and the two rotating columns 22 are symmetrically arranged at the upper and lower ends of the moving group 23, and the rotating columns 22 are rotatably connected with the rotating tube 18, and a magnetic conductor is arranged in the rotating column 22, and an electromagnetic coil is arranged on the inner wall of the rotating tube 18.

[0027] As a specific embodiment of the present invention, the moving group 23 is composed of a plurality of active plates 24 and a driven plate 25, and a plurality of sliding grooves 26 are arranged on the side of the rotating column 22 close to the moving group 23. The plurality of sliding grooves 26 are arranged around the axis of the rotating column 22, and a rotating groove 261 is arranged between two adjacent sliding grooves 26.

[0028] As a specific embodiment of the present invention, an active rod 27 is arranged in the sliding groove 26, and a driven rod 28 is arranged in the sliding groove 26 adjacent to the active rod 27. The driven rod 28 and the active rod 27 are directly connected by a hinged rod 29, a fixed rod is arranged in the middle of the hinged rod 29, and the hinged rod 29 is rotatably connected to the rotating groove 261 through the fixed rod. An electromagnetic spring is arranged on the side of the active rod 27 away from the driven rod 28.

[0029] As a specific implementation of the present invention, the active plate 24 is connected to the active rod 27 , the driven plate 25 is connected to the driven rod 28 , and a stirring plate 251 is provided on a side of the driven plate 25 away from the active plate 24 .

[0030] As a specific embodiment of the present invention, a rotating frame 30 is arranged inside the filter column 21, and a No. 3 motor is arranged on the side of the rotating frame 30 close to the rotating column 22. A transmission wheel is arranged on the driving shaft of the No. 3 motor. The rotating frame 30 is rotatably connected to the rotating column 22 through the transmission wheel, and a connecting column 31 is arranged on the rotating frame 30.

[0031] As a specific embodiment of the present invention, an auger 32 is arranged between the two connecting columns 31, and the two augers 32 rotate in opposite directions. A plurality of arc plates 33 are arranged on the side of the connecting column 31 away from the auger 32, and a plurality of micropores are arranged on the surface of the arc plate 33 close to the aeration chamber 11. The diameter of the micropore close to the connecting column 31 is larger than the diameter of the micropore away from the connecting column 31. An opening is arranged on the side of the arc plate 33 close to the bottom of the flocculation chamber 12, and a gate is arranged in the opening. A filter hole is arranged on the surface of the arc plate 33 close to the bottom of the flocculation chamber 12.

[0032] Working principle of the present invention: Before the sewage is transported to the aeration chamber 11 for aeration treatment, the hydraulic cylinder at the bottom of the moving block 15 will push the support column 16 to move, so that the support column 16 drives the blocking plate 161 and the rotating blade 162 to move, so that the rotating blade 162 extends into the input port 13, and the blocking plate 161 closes the input port 13, so that the aeration chamber 11 and the flocculation chamber 12 are isolated, and the sewage in the aeration chamber 11 is aerated. At the same time, the controller controls the No. 2 motor to start, and the driving shaft of the No. 2 motor drives the output blade 17 to rotate, so that the output blade 17 drives the moving block 15 and the support column 16 to rotate, and then the blocking plate 161 and the rotating blade 162 also rotate. After the rotating blade 162 rotates, it immediately stirs the sewage in the aeration chamber 11, so that the sewage and oxygen are fully mixed; The connecting column 31 drives the auger 32 and the curved plate 33 to rotate, so that the auger 32 drives the air in the filter column 21 to move. At the same time, the controller controls the gate plate to open, so that the air at the bottom of the body 1 can be transported to the filter column 21 through the gate plate. The air in the filter column 21 flows from the rotating column 22 close to the bottom of the flocculation chamber 12 to the rotating column 22 close to the aeration chamber 11. After the air moves to the bottom of the curved plate 33, it is transported to the aeration chamber 11 through the micropores to aerate the sewage in the aeration chamber 11. Since the diameter of the micropore close to the connecting column 31 is larger than the diameter of the micropore away from the connecting column 31, the sewage cannot be transported to the filter column 21 through the curved plate 33, thereby ensuring that the sewage is treated according to the treatment process. After a period of aeration treatment, the controller controls the push rod of the hydraulic cylinder to retract and reset, and then the support column 16 drives the blocking plate 161 and the rotating blade 162 to descend. After the blocking plate 161 descends, the input port 13 is connected with the flocculation chamber 12, and the sewage in the aeration chamber 11 moves to the flocculation chamber 12 through the input port 13. When the sewage is input into the flocculation chamber 12, the staff adds the flocculant synchronously. After the sewage is transported, the blocking plate 161 closes the input port 13 again. When the sewage needs to be mixed with the flocculant, the side wall of the active plate 24 is in contact with the side wall of the driven plate 25, so that the filter column 21 is isolated from the flocculation chamber 12 by a plurality of active plates 24 and driven plates 25, and the sewage and the flocculant can only be stirred and mixed in the flocculation chamber 12; After the sewage and the flocculant have been mixed and reacted for a period of time, the tiny impurities in the sewage are aggregated into large impurities under the action of the flocculant. Then, the controller controls the electromagnetic spring to be energized, and the electromagnetic spring contracts after being energized, that is, the electromagnetic spring pulls the active rod 27 to move, and the active rod 27 moves along the sliding groove 26 to the side close to the axis of the filter column 21. When the active rod 27 moves, it drives the active plate 24 to move. At the same time, the active rod 27 drives the hinged rod 29 to rotate, and the side of the hinged rod 29 close to the driven rod 28 rotates to the side close to the flocculation chamber 12, so that the hinged rod 29 pushes the driven rod 28 to move, that is, the active rod 27 and the driven rod 28 move to the opposite side, and then the active plate 24 and the driven plate 25 also move to the opposite side. At this time, there is a gap between the active plate 24 and the driven plate 25. By adjusting the size of the electromagnetic spring, the contraction deformation of the electromagnetic spring is adjusted, and then the size of the gap between the active plate 24 and the driven plate 25 is adjusted. By adjusting the size of the gap, the separation of sewage and impurities is achieved; When the sewage enters the filter column 21 through the gap between the active plate 24 and the driven plate 25, the sewage moves under the action of gravity and the auger 32, and moves toward the rotating column 22 close to the bottom side of the flocculation chamber 12. At this time, the gate plate on the arc plate 33 on the bottom side is in a closed state, and the sewage will be output to the outside through the filter holes on the arc plate 33. That is, through the cooperation between the active plate 24 and the driven plate 25 and the filtering effect of the filter holes, the effect of layered multiple filtration is achieved; Since a plurality of filter columns 21 are provided, when one filter column 21 is being maintained and cleaned, another filter column 21 can still participate in sewage treatment, thus avoiding interruption of sewage treatment due to equipment downtime; By setting the stirring plate 251, when the filter column 21 is isolated from the flocculation chamber 12, the filter column 21 rotates under the action of the electromagnetic coil, and then the filter column 21 drives the stirring plate 251 to rotate through the driven plate 25, so that a plurality of stirring plates 251 move in the flocculation chamber 12, and the stirring plate 251 stirs and mixes the sewage and flocculant in the flocculation chamber 12 when rotating. When the filter column 21 is connected to the flocculation chamber 12, the rotation of the stirring plate 251 can, on the one hand, drive the sewage to be transported from the flocculation chamber 12 to the filter column 21, and on the other hand, can push the impurities in the sewage to move to the side away from the filter column 21; After the sewage and impurities in the flocculation chamber 12 are separated and discharged through the filter column 21, the controller controls the No. 1 motor to start, and the driving shaft of the No. 1 motor drives the gear to rotate. The gear meshes with the rack at the bottom of the moving block 15, so that the moving block 15 moves under the action of the gear, and the moving block 15 moves to the side close to the input port 13. During the movement, the push rod of the hydraulic cylinder also moves, so that the output port 14 is opened without affecting the closure of the blocking plate 161. Subsequently, the impurities in the flocculation chamber 12 move under the action of the output leaf 17 and the stirring plate 251. The impurities move to the side close to the output port 14 under the action of the stirring plate 251, and the output leaf 17 moves the impurities from the flocculation chamber 12 to the output port 14, so that the impurities are discharged through the output port 14. After the impurities are discharged, the moving block 15 is reset to block the output port 14.

[0033] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A sewage treatment device with layered filtration function, characterized in that: The machine body (1) comprises an aeration chamber (11) at the top of the machine body (1), a flocculation chamber (12) is arranged inside the machine body (1), the aeration chamber (11) is communicated with the flocculation chamber (12), a filter device (2) is also arranged inside the machine body (1), the top of the filter device (2) is communicated with the aeration chamber (11), and the middle of the filter device (2) is communicated with the flocculation chamber (12); The filtering device (2) is composed of a plurality of filtering columns (21), wherein the filtering columns (21) are composed of two rotating columns (22) and a moving group (23), and the moving group (23) is composed of a plurality of active plates (24) and driven plates (25).

2. A sewage treatment device with layered filtration function according to claim 1, characterized in that: An input port (13) is arranged in the middle of the aeration chamber (11), an output port (14) is arranged at the bottom of the flocculation chamber (12), a moving block (15) is arranged in the output port (14), a support column (16) is arranged on the side of the moving block (15) close to the input port (13), a blocking plate (161) and a plurality of rotating blades (162) are arranged on the top of the support column (16), the rotating blades (162) are arranged on the side of the blocking plate (161) close to the input port (13), and the blocking plate (161) and the rotating blades (162) are rotatably connected to the input port (13).

3. A sewage treatment device with layered filtration function according to claim 2, characterized in that: A hydraulic cylinder is arranged on the top of the moving block (15), a push rod of the hydraulic cylinder is connected to a support column (16), a rack is arranged on the bottom side wall of the moving block (15), a No. 1 motor is arranged in the inner wall of the machine body (1), a driving shaft of the No. 1 motor is connected to a gear, the gear is meshed with the rack, a plurality of output leaves (17) are arranged in the middle of the moving block (15), a No. 2 motor is arranged at the bottom of the moving block (15), a driving shaft of the No. 2 motor is connected to the output leaves (17), and the output leaves (17) drive the top of the moving block (15) and the support column (16) to rotate.

4. A sewage treatment device with layered filtration function according to claim 1, characterized in that: A plurality of rotating tubes (18) are arranged on the machine body (1), the rotating tubes (18) correspond to the filter columns (21) one by one, and the filter columns (21) are rotatably connected to the rotating tubes (18).

5. A sewage treatment device with layered filtration function according to claim 4, characterized in that: The two rotating columns (22) are symmetrically arranged at the upper and lower ends of the moving group (23); the rotating columns (22) are rotatably connected to the rotating tube (18); a magnetic conductor is arranged inside the rotating column (22); and an electromagnetic coil is arranged on the inner wall of the rotating tube (18).

6. A sewage treatment device with layered filtration function according to claim 5, characterized in that: A plurality of sliding grooves (26) are arranged on one side of the rotating column (22) close to the moving group (23); the plurality of sliding grooves (26) are arranged around the axis of the rotating column (22); and a rotating groove (261) is arranged between two adjacent sliding grooves (26).

7. A sewage treatment device with layered filtration function according to claim 6, characterized in that: An active rod (27) is arranged in the sliding groove (26), a driven rod (28) is arranged in the sliding groove (26) adjacent to the active rod (27), a hinged rod (29) is directly connected to the driven rod (28) and the active rod (27), a fixed rod is arranged in the middle of the hinged rod (29), the hinged rod (29) is rotatably connected to the rotating groove (261) through the fixed rod, and an electromagnetic spring is arranged on the side of the active rod (27) away from the driven rod (28).

8. A sewage treatment device with layered filtration function according to claim 7, characterized in that: The active plate (24) is connected to an active rod (27), the driven plate (25) is connected to a driven rod (28), and a stirring plate (251) is provided on a side of the driven plate (25) away from the active plate (24).

9. A sewage treatment device with layered filtration function according to claim 8, characterized in that: A rotating frame (30) is arranged inside the filter column (21), a No. 3 motor is arranged on a side of the rotating frame (30) close to the rotating column (22), a transmission wheel is arranged on the driving shaft of the No. 3 motor, the rotating frame (30) is rotatably connected to the rotating column (22) via the transmission wheel, and a connecting column (31) is arranged on the rotating frame (30).

10. A sewage treatment device with layered filtration function according to claim 9, characterized in that: An auger (32) is arranged between the two connecting columns (31), and the two auger (32) rotate in opposite directions. A plurality of arc-shaped plates (33) are arranged on the side of the connecting column (31) away from the auger (32), and a plurality of micropores are arranged on the surface of the arc-shaped plate (33) close to the aeration chamber (11). The diameter of the micropores on the side close to the connecting column (31) is larger than the diameter of the micropores on the side away from the connecting column (31). An opening is arranged on the side of the arc-shaped plate (33) close to the bottom of the flocculation chamber (12), and a gate is arranged in the opening. A filtering hole is arranged on the surface of the arc-shaped plate (33) close to the bottom of the flocculation chamber (12).

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