A high-efficiency multi-stage sewage treatment device

Abstract

The present invention relates to the technical field of sewage treatment, specifically to a high-efficiency multi-stage sewage treatment device, comprising a treatment tank body, a first reaction zone and a second reaction zone, one end of the treatment tank body being connected to a filter tank, the inner wall of the treatment tank body being equidistantly provided with microorganism placement frames, the inner wall of the treatment tank body being provided with a barrier frame, the barrier frame dividing the interior of the treatment tank body into a first reaction zone and a second reaction zone, and an arc-shaped slot being provided on the inner side of the filter tank. The barrier frame divides the treatment tank into a first reaction zone and a second reaction zone, the microorganism placement frame is filled with suitable filter material, and microorganisms form a biofilm on the surface of the filter material to decompose organic matter in the sewage. Different reaction zones have clear division of labor, and sewage flows in an orderly manner between the zones, from filtration in the filter tank, to biological treatment in the second reaction zone, and then to further treatment in the first reaction zone, thereby improving the efficiency and quality of sewage treatment.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, in particular to a high-efficiency multi-stage sewage treatment device. Background Art

[0002] The composition of sewage is complex, including a large amount of organic matter, grease, suspended matter and various pollutants.

[0003] During the treatment process in the reaction zone, traditional multi-stage wastewater treatment systems typically consist of a simple series connection of multiple independent treatment units. These units lack effective coordination and optimization, resulting in poor mixing of the wastewater and inadequate contact and reaction between the treatment agents and the wastewater. This is particularly true during the biological treatment stage, where insufficient wastewater fluidity prevents microorganisms from fully decomposing organic matter, making it difficult for the treated water to meet discharge standards. Furthermore, the connections between the different reaction zones are inadequate, resulting in poor wastewater flow between areas, impacting overall treatment efficiency. Furthermore, the cumbersome treatment process increases both the cost and time of wastewater treatment. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a high-efficiency multi-stage sewage treatment device to solve the problems existing in the above-mentioned background technology.

[0005] A high-efficiency multi-stage sewage treatment device comprises a treatment tank body, a first reaction zone and a second reaction zone, one end of the treatment tank body is connected to a filter tank, the inner wall of the treatment tank body is equidistantly provided with a microorganism placement frame, the inner wall of the treatment tank body is provided with a barrier frame, the barrier frame divides the interior of the treatment tank body into a first reaction zone and a second reaction zone, an arc-shaped slot is provided on the inner side of the filter tank, the inner wall of the arc-shaped slot is movably connected with an arc-shaped baffle, a motor frame is provided on the top of the filter tank, a drive motor is provided on the top of the motor frame, a square opening is provided on the outside of the filter tank, an inlet pipe is provided on the outside of the filter tank, a discharge elbow is provided at one end of the inlet pipe, a spiral filter assembly is provided on the inner side wall of the filter tank, the output end of the drive motor is connected to a stirring assembly, the stirring assembly is provided on the inner side of the spiral filter assembly, a drive assembly is provided on the inner side of the barrier frame, wherein the barrier frame is located in front of the microorganism placement frame, a discharge valve is provided at the other end of the treatment tank body, and the discharge valve is connected to the treatment tank body.

[0006] The driving assembly includes a water inlet, a guide plate, a limiting hole, a guide port and a driving part. A cavity is provided in the middle of the blocking frame. The water inlet is provided on one side surface of the blocking frame. The guide plate is fixedly arranged on the inner side wall of the cavity and is flush with the lower opening of the water inlet. The limiting hole is provided on the other side surface of the blocking frame. The guide port is provided on the other side surface of the blocking frame. The water inlet is located below the top of the limiting hole. The water inlet is located above the guide port. The driving part is movably installed in the cavity of the blocking frame and a part of the driving part is arranged through the limiting hole.

[0007] The driving part includes a shaft sleeve, a rotating impact plate, a water wheel, a support seat, and a float. The float is movably arranged in a cavity inside the blocking frame. The support seat is symmetrically fixed on the top surface of the float. The water wheel is rotatably installed on the inner side of the two support seats. The shaft sleeve is rotatably sleeved on the outer surface of the central axis of the water wheel. One end of the rotating impact plate is fixedly installed on the shaft end of the central axis of the water wheel.

[0008] The end face of the sleeve is arranged parallel to one side of the blocking frame, the shaft end of the water wheel center axis passes through the limiting hole, the water wheel and the sleeve are respectively arranged inside and outside the blocking frame, and the initial position of the water wheel center axis is located at the bottom end of the limiting hole.

[0009] The stirring assembly includes a rotating shaft and a stirring blade. The rotating shaft is fixedly mounted on the output end of the driving motor and movably passes through the motor frame. The stirring blade is fixedly mounted on the outside of the rotating shaft. The rotating shaft is located at the center of the spiral filter assembly. The stirring radius of the stirring blade is smaller than the inner diameter of the spiral filter assembly.

[0010] A water pump assembly is provided on the outside of the arc-shaped baffle, and the water pump assembly consists of a liquid pump and a long tube. The water inlet end of the liquid pump is connected to one end of the long tube, and the other end of the long tube passes through the arc-shaped baffle and extends to the interior of the filter tank. The discharge end of the liquid pump faces the interior of the second reaction zone, wherein a push-pull handle is provided on the top of the arc-shaped baffle, and sealing rubber strips are provided on the end faces of the arc-shaped baffle. A hydraulic lifting rod is provided on the outside of the filter tank, and the output end of the hydraulic lifting rod is fixedly connected to the drive motor.

[0011] The spiral filtration assembly includes a spiral guide plate, a spiral filter element, a spiral groove, and a buckle. The spiral guide plate is fixedly installed on the inner wall of the filter tank, the spiral groove is opened on the top surface of the spiral guide plate, and the spiral filter element is inserted into the inner wall of the spiral groove, wherein the bottom surface of the spiral filter element is parallel to the inner bottom wall of the spiral groove, and the buckle is movably connected to the upper end of the spiral guide plate, wherein the spiral guide plate surrounds the stirring assembly.

[0012] Both ends of the spiral guide plate are open, the upper spiral end of the spiral filter element is closed, and the lower spiral end is open. A spiral groove is provided on the bottom surface of the spiral guide plate, and a spiral strip is fixedly installed at one end of the buckle. The spiral strip is movably installed on the inner wall of the spiral groove, and the spiral strip can drive the spiral filter element to rotate and slide along the inner wall of the spiral groove.

[0013] A right-angle connecting rod is fixedly installed on the bottom surface of the spiral strip, and a movable sleeve disk is fixedly installed on the horizontal end of the right-angle connecting rod. The movable sleeve disk is rotatably set on the inner bottom wall of the filter tank. The movable sleeve disk can be linked with the stirring assembly, and the vertical end of the right-angle connecting rod is a retractable structure.

[0014] A circular hole is opened in the middle of the movable sleeve disc, and electromagnetic blocks are equidistantly arranged on the inner side of the circular hole of the movable sleeve disc. A magnetic block is arranged on the outer side of the rotating shaft, and the magnetic block and the electromagnetic block can be magnetically connected.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This device filters wastewater using a spiral filter element. This element, such as a polypropylene (PP) meltblown filter element, features a unique, loose fiber structure and high porosity, effectively trapping grease and suspended solids in wastewater. Wastewater enters through the top of the spiral guide plate and is filtered along the contours of the spiral element, increasing the filtration area and contact time, significantly improving filtration efficiency. Compared to traditional simple mesh filtration, this more thoroughly removes impurities, reducing the burden on subsequent treatment units.

[0017] This device provides thorough mixing: The drive assembly ensures thorough mixing of the sewage and treatment chemicals. In the first reaction zone, the drive assembly uses the gravity of the sewage to impact the water wheel, driving the rotating impact plate to stir the incoming sewage. As the water level rises, it also stirs the upper layer of the sewage, ensuring that the treatment chemicals that fall to the surface of the sewage are fully mixed. In the filter tank, the stirring assembly stirs the sewage filtered by the spiral filter assembly and performs oxidation treatment.

[0018] This device optimizes the reaction flow: a barrier frame separates the treatment tank into a primary and secondary reaction zone. The microbial reservoir is filled with suitable filter media, where microorganisms form a biofilm on the surface, breaking down organic matter in the wastewater. With clear divisions of labor between the different reaction zones, wastewater flows orderly between them, from filtration in the filter tank to biological treatment in the secondary reaction zone, and then to further treatment in the primary reaction zone, improving both the efficiency and quality of wastewater treatment.

[0019] Convenient filter element replacement: Through the coordination of the movable sleeve, right-angle connecting rod and spiral strip, when the spiral filter element needs to be replaced, it is only necessary to control the drive motor to drive the shaft to rotate, and the spiral filter element can be rotated out of the spiral groove. The operation is simple and there is no need to disassemble a large number of equipment parts, which reduces the filter element replacement time, ensures the continuity of sewage treatment work, and reduces maintenance costs.

[0020] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the present invention;

[0022] Figure 2 Schematic diagram of the overall structure of the present invention (first perspective);

[0023] Figure 3 Schematic diagram of the local structure of the present invention Figure 1 (Section view);

[0024] Figure 4 Schematic diagram of the local structure of the present invention Figure 2 (Section view);

[0025] Figure 5 Schematic diagram of the local structure of the present invention Figure 3 (Section view);

[0026] Figure 6 Schematic diagram of the local structure of the present invention Figure 4 (Section view);

[0027] Figure 7 Schematic diagram of the local structure of the present invention Figure 5 ;

[0028] Figure 8 For the present invention Figure 7 A partial enlarged schematic diagram in the middle;

[0029] Figure 9 Schematic diagram of the local structure of the present invention Figure 6 ;

[0030] Figure 10 Schematic diagram of the local structure of the present invention Figure 7 ;

[0031] Figure 11 Schematic diagram of the arc baffle structure in the present invention;

[0032] Figure 12 Schematic diagram of the local structure of the present invention Figure 8 ;

[0033] Figure 13 Schematic diagram of the overall structure of the present invention (second viewing angle);

[0034] Figure 14 Schematic diagram of the local structure of the present invention Figure 9 ;

[0035] Figure 15 Schematic diagram of the local structure of the present invention Figure 10 ;

[0036] Figure 16 Schematic diagram of the local structure of the present invention Figure 10 1 (section view).

[0037] In the figure, 1, treatment tank body; 2, first reaction zone; 3, barrier frame; 4, second reaction zone; 5, microorganism placement frame; 6, filter tank; 7, water pump assembly; 8, arc baffle; 9, drive motor; 10, motor frame; 11, square port; 12, water inlet pipe; 13, spiral filter element; 14, spiral guide plate; 15, rotating shaft; 16, stirring blade; 17, movable sleeve; 18, arc slot; 19, aeration head; 2 0. Diversion port; 21. Right-angle connecting rod; 22. Discharge elbow; 23. Rotating impact plate; 24. Buckle; 25. Spiral groove; 26. Bushing; 27. Water wheel; 28. Support seat; 29. ​​Float; 30. Water inlet; 31. Drain plate; 32. Limiting hole; 33. Electromagnetic block; 34. Magnetic block; 35. Hydraulic lifting rod; 36. V-shaped spring buckle; 37. Guide column; 38. Compression spring; 39. Microbial block. DETAILED DESCRIPTION

[0038] The present invention will be further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation. The structure of the present invention necessarily exceeds these limited embodiments. For some equivalent replacement solutions or common means, they will not be described in detail herein, but they still fall within the scope of protection of this application.

[0039] Figures 1-16 The best embodiment of the present invention is shown below in conjunction with the attached Figures 1-16 The present invention is further described.

[0040] The embodiment of the present invention provides a technical solution: a high-efficiency multi-stage sewage treatment device, including a treatment tank body 1, a first reaction zone 2 and a second reaction zone 4, one end of the treatment tank body 1 is connected to a filter tank 6, the inner wall of the treatment tank body 1 is equidistantly provided with a microorganism placement frame 5, the inner wall of the treatment tank body 1 is provided with a barrier frame 3, the barrier frame 3 divides the interior of the treatment tank body 1 into the first reaction zone 2 and the second reaction zone 4, the inner side of the filter tank 6 is provided with an arc-shaped slot 18, the inner wall of the arc-shaped slot 18 is movably connected with an arc-shaped baffle 8, the top of the filter tank 6 is provided with a motor frame 10, the motor frame 1 0 is provided with a driving motor 9 on the top, a square opening 11 is opened on the outside of the filter tank 6, a water inlet pipe 12 is provided on the outside of the filter tank 6, a discharge elbow 22 is provided at one end of the water inlet pipe 12, a spiral filter assembly is provided on the inner wall of the filter tank 6, the output end of the driving motor 9 is connected with a stirring assembly, the stirring assembly is provided on the inner side of the spiral filter assembly, a driving assembly is provided on the inner side of the barrier frame 3, wherein the barrier frame 3 is located in front of the microorganism placement frame 5, and a discharge valve is provided at the other end of the treatment tank body 1, and the discharge valve is connected to the treatment tank body 1, and the discharge valve is used to discharge the treated and purified sewage.

[0041] When the device is in use, preferably, the sewage can be first transported to the spiral filter assembly through the discharge elbow 22 for filtration. The filtered sewage is stored in the filter tank 6 which is a closed environment formed by plugging the arc baffle 8 and the arc slot 18 together. After oxidation treatment, it is extracted by the water pump assembly 7 and enters the second reaction zone 4 for subsequent treatment.

[0042] The arc baffle 8 and the arc slot 18 are plugged into each other to form a filter tank 6 with a closed environment to oxidize the sewage; when oxidation treatment is not required, the arc baffle 8 can be directly opened to allow the sewage filtered by the spiral filter assembly to directly enter the second reaction zone 4.

[0043] Specifically, the driving assembly includes a water inlet 30, a guide plate 31, a limiting hole 32, a guide port 20 and a driving part. A cavity is opened in the middle of the barrier frame 3. The water inlet 30 is opened on one side surface of the barrier frame 3. The guide plate 31 is fixedly arranged on the inner wall of the cavity and is flush with the lower end of the water inlet 30. The limiting hole 32 is opened on the other side surface of the barrier frame 3. Figure 12 As shown, the guide port 20 is opened on the other side surface of the blocking frame 3, the water inlet 30 is located below the top of the limiting hole 32, and the water inlet 30 is located above the guide port 20. The driving part is movably installed in the cavity of the blocking frame 3 and a part of the driving part is arranged through the limiting hole 32.

[0044] The driving part includes a sleeve 26, a rotating baffle 23, a water wheel 27, a support seat 28, and a float 29. The float 29 is movably arranged in the cavity inside the blocking frame 3. The two support seats 28 are symmetrically fixed on the top surface of the float 29. The water wheel 27 is rotatably installed on the inner side of the two support seats 28. The surface of the support seat 28 is provided with a movable hole for installing the water wheel 27. The sleeve 26 is sleeved on the outer surface of the central axis of the water wheel 27. The rotating baffle 23 is fixedly installed on the axial end of the central axis of the water wheel 27. The end face of the sleeve 26 is arranged parallel to one side of the blocking frame 3. The structure of the sleeve 26 is a hollow cylinder. The central axis of the water wheel 27 is set through the sleeve 26. The axial end of the central axis of the water wheel 27 passes through the limiting hole 32. The water wheel 27 and the sleeve 26 are respectively arranged inside and outside the blocking frame 3. The initial position of the central axis of the water wheel 27 is at the bottom end of the limiting hole 32.

[0045] In this embodiment, a driving component is provided to stir the sewage accumulated in the first reaction zone 2 and biologically treated so that it is always in a flowing state, thereby ensuring sufficient mixing of subsequent treatment agents. The water inlet 30 opened on one side of the barrier frame 3 is used to discharge the overflowed sewage. The sewage discharged through the water inlet 30 is discharged into the first reaction zone 2 through the diversion port 20. The sewage is discharged downward under the drainage action of the diversion plate 31. Due to the gravity of the sewage, the water wheel 27 will be impacted. At this time, the water wheel 27 will rotate, thereby driving the rotating impact plate 23 to rotate. The rotating impact plate 23 realizes stirring of the sewage flowing into the first reaction zone 2. Among them, an optional treatment method is that the sewage in the first reaction zone 2 is neutralized with the treatment agent, and the sewage is neutralized by adding a neutralizing agent such as liquid alkali into the first reaction zone 2.

[0046] Since one side of the barrier frame 3 is connected to the first reaction zone 2 and the other side is in a closed state, as more and more water flows into the first reaction zone 2, the water level inside the first reaction zone 2 gradually rises. At this time, the water level in the cavity opened in the middle of the barrier frame 3 also gradually rises. The shaft sleeve 26 drives the water wheel 27 and the rotating baffle 23 to move upward under the action of buoyancy, thereby stirring the top layer of the sewage, ensuring that the treatment agent falling on the surface of the sewage is fully mixed. The rotating baffle 23 is rectangular and made of corrosion-resistant plastic.

[0047] Specifically, the stirring assembly includes a rotating shaft 15 and a stirring blade 16. The rotating shaft 15 is fixedly mounted on the output end of the driving motor 9. The rotating shaft 15 movably passes through the motor frame 10. The stirring blade 16 is fixedly mounted on the outside of the rotating shaft 15. The rotating shaft 15 is located at the center of the spiral filter assembly. The stirring radius of the stirring blade 16 is smaller than the inner diameter of the spiral filter assembly.

[0048] In this embodiment, a stirring component is provided to stir the sewage filtered by the spiral filter component to ensure the fluidity of the sewage. Preferably, the arc-shaped baffle 8 and the arc-shaped slot 18 can be plugged into each other to partially divide the filter tank 6 to form a closed environment. An oxidizing agent is added to the sewage filtered by the spiral filter component. For example, the addition of Fenton reagent can be used to effectively treat highly toxic substances such as cyanide and phenols. The stirring component plays a role in stirring the oxidizing agent and the sewage.

[0049] The water is drawn by the water pump assembly 7 and flows into the second reaction zone 4, wherein the microorganism placement frame 5 is filled with filter material or microorganism blocks 39, wherein the microorganism block 39 is a plastic frame filled with filter material, and the inner bottom wall of the microorganism placement frame 5 is fixedly installed with a guide column 37, and the microorganism block 39 is sleeved with the guide column 37 through the guide block on the side, and the outer side of the guide column 37 is sleeved with a compression spring 38, and the top of the compression spring 38 is fixedly connected to the bottom of the guide block. By pressing the microorganism block 39, it moves downward along the outer side of the guide column 37, and compresses the compression spring 38, and the microorganism block 39 is inserted into the interior of the microorganism placement frame 5, and is connected to the outer side of the microorganism placement frame 5 through the V-shaped spring buckle 36 set on the outer side of the microorganism block 39. The filter holes are connected to fix the microorganism block 39, wherein the V-shaped spring buckle 36 is composed of a spring piece and a movable bar, and the movable bar is used to connect with the filter hole. When the microorganism block 39 needs to be removed from the microorganism placement frame 5, the movable bar is pressed synchronously to separate it from the filter hole, so that the microorganism block 39 is ejected upward under the elastic potential energy of the compression spring 38, thereby realizing the replacement and placement of the microorganism block 39. The surface of the microorganism placement frame 5 is equidistantly provided with filter holes, wherein the filter material and the filter material in the microorganism block 39 can be any one of crushed stone, pebbles, slag, coke, and plastic filter material. For example, crushed stone is used as the filter material, and its particle size is generally 3 to 5 cm, with certain mechanical strength and chemical stability;

[0050] For example, the plastic filter material can be a corrugated plate, honeycomb or spherical filter material made of polyvinyl chloride, polypropylene, etc. Its unique shape and structure are conducive to the attachment of microorganisms and the penetration of sewage. The microorganisms form a biofilm on the surface of the filter material to decompose the organic matter in the sewage. As sewage is continuously introduced into the second reaction zone 4, the reacted sewage is discharged into the cavity inside the barrier frame 3 through the water inlet 30, and is gathered into the first reaction zone 2 through the guide port 20.

[0051] The second reaction zone 4 is further provided with an aeration head 19 for performing flotation operation when necessary.

[0052] Specifically, a water pump assembly 7 is provided on the outside of the arc baffle 8. The water pump assembly 7 consists of a liquid pump and a long tube. The water inlet end of the liquid pump is connected to one end of the long tube. The other end of the long tube passes through the arc baffle 8 and extends to the inside of the filter tank 6. The drainage end of the liquid pump faces the inside of the second reaction zone 4. A push-pull handle is provided on the top of the arc baffle 8. The end faces of the arc baffle 8 are all provided with sealing rubber strips. A hydraulic lifting rod 35 is provided on the outside of the filter tank 6. The output end of the hydraulic lifting rod 35 is connected to the driving The motor 9 is fixedly connected, and the hydraulic lifting rod 35 is controlled to control its telescopic state to drive the rotating shaft 15 and the driving motor 9 to be lifted and lowered as a whole to achieve the change of the stirring position. When the rotating shaft 15 drops to the maximum position, the rotating shaft 15 is docked with the movable sleeve 17, so that the rotating shaft 15 and the movable sleeve 17 are connected as one. The hydraulic lifting rod 35 is an existing technology and can be connected to the driving motor 9 in this device through a connecting base to adjust the distance from the rotating shaft 15 to the bottom wall of the filter tank 6. Its specific structure will not be repeated here.

[0053] In this embodiment, combined with Figure 2 and Figure 11 Since the other end of the long tube passes through the arc baffle 8, the drainage end of the liquid pump is higher than the height of the arc baffle 8, wherein the drainage end of the liquid pump faces the interior of the second reaction zone 4. By arranging a water pump assembly 7 on the outside of the arc baffle 8 to extract the sewage in the filter tank 6, the sewage enters the second reaction zone 4 for biological reaction, thereby decomposing the organic matter in the water;

[0054] The push-pull handle provided on the top of the arc-shaped baffle 8 is used to drive the arc-shaped baffle 8, wherein the driving is mainly through external force, which can be manually pushed by a tool to make it engage with the arc-shaped slot 18 to form a closed area.

[0055] Specifically, the spiral filter assembly includes a spiral guide plate 14, a spiral filter element 13, a spiral groove 25, and a buckle 24. The spiral guide plate 14 is fixedly mounted on the inner side wall of the filter tank 6. The spiral groove 25 is opened on the top surface of the spiral guide plate 14. The spiral filter element 13 is inserted into the inner wall of the spiral groove 25. The bottom surface of the spiral filter element 13 is parallel to the inner bottom wall of the spiral groove 25 and has a certain gap. The buckle 24 is movably connected to the upper end of the spiral guide plate 14, wherein the spiral guide plate 14 surrounds the stirring assembly.

[0056] like Figure 15As shown, both ends of the spiral guide plate 14 are open, the upper spiral end of the spiral filter element 13 is in a closed state, and the lower spiral end is in an open state. A spiral groove is provided on the bottom surface of the spiral guide plate 14, and the buckle 24 is clamped on one end of the spiral guide plate 14, and one end of the buckle 24 is detachably connected to the spiral filter element 13. A spiral strip is fixedly installed on one end of the buckle 24, and the spiral strip is movably installed on the inner wall of the spiral groove. Therefore, when the spiral strip makes a spiral motion on the inner wall of the spiral groove (when the spiral strip rotates counterclockwise, the spiral strip protrudes outward relative to one end of the spiral guide plate 14, thereby driving the buckle 24 to move from the spiral guide plate 14 One end is separated, thereby driving the spiral filter element 13 to separate from the open opening at the upper end of the spiral guide plate 14 and be discharged from the square port 11) It is possible to drive the spiral filter element 13 to move along the inner side of the spiral guide plate 14, and a right-angle connecting rod 21 is fixedly installed on the bottom surface of the spiral strip, and a movable sleeve 17 is fixedly installed on the horizontal end of the right-angle connecting rod 21. The movable sleeve 17 is linked to the stirring assembly. It should be noted that the vertical end of the right-angle connecting rod 21 is composed of a retractable connecting rod. When the right-angle connecting rod 21 rotates, the spiral strip will generate vertical displacement under the action of the spiral slide groove, so the right-angle connecting rod 21 will extend and retract along the trajectory of movement.

[0057] In this embodiment, a spiral guide plate 14 is provided for installing the spiral filter element 13, wherein the spiral guide plate 14 is spiral-shaped, and the spiral filter element 13 is used to filter the sewage discharged from the discharge elbow 22, wherein the spiral filter element 13 is spirally provided on the inner wall of the spiral groove 25, wherein the spiral filter element 13 is preferably a polypropylene PP melt-blown filter element, which has a loose fiber structure and a high porosity, can accommodate more grease and has a better interception effect on grease and suspended matter, and the spiral filter element 13 structure is flexible and has a certain elastic deformation ability, wherein the spiral filter element 13 can be produced in a shape adapted to the spiral guide plate 14, and the sewage discharged through the discharge elbow 22 is discharged from the top of the spiral guide plate 14, and as the filtration proceeds, the sewage will gradually flow and be filtered in a spiral manner along the contour of the spiral filter element 13, such as Figure 15 As shown, the cross section of the spiral filter element 13 is U-shaped, and the sewage is filtered along the spiral filter elements 13 arranged in parallel on both sides. The filtered sewage passes through the spiral groove 25 and is discharged to the closed area through the end of the spiral guide plate 14.

[0058] The spiral strip is provided at the bottom end of the spiral guide plate 14 to drive the spiral filter element 13 so that it can be rotated along the inner wall of the spiral guide plate 14. Specifically, when the spiral strip is rotated under the drive of the right-angle connecting rod 21, the upper end of the spiral strip protrudes outward from the upper end opening of the spiral guide plate 14, thereby driving the buckle 24 to separate from the upper end of the spiral guide plate 14, thereby driving the spiral filter element 13 to separate from the upper end opening of the spiral guide plate 14, and the spiral filter element 13 extends outward from the square opening 11. A small part is extended to facilitate personnel to disassemble and separate the spiral filter element 13 from the buckle 24 from the outside and pull it out. It should be noted that this operation is only performed when the spiral filter element 13 needs to be replaced; when the rotating shaft 15 and the movable sleeve 17 are adsorbed together due to magnetic action (the specific adsorption method is described later), the rotating shaft 15 drives the movable sleeve 17 to rotate, and the movable sleeve 17 drives the right-angle connecting rod 21 to rotate. Since the vertical part of the right-angle connecting rod 21 is fixedly connected to the spiral strip, When the right-angle connecting rod 21 makes a circular motion, it drives the spiral strip to rotate along the inner wall of the spiral groove, wherein the rotation of the right-angle connecting rod 21 can realize the driving of the spiral filter element 13, so that it rotates from the inside of the spiral groove 25 and is screwed out from the square opening 11. When one end of the spiral filter element 13 is screwed out, the rotating shaft 15 is separated from the movable sleeve 17, and one end of the spiral filter element 13 is pulled out from the inside of the spiral groove 25. Then, a new spiral filter element 13 is inserted into the spiral groove 25 from the open end of the spiral guide plate 14 so that it rotates along the spiral groove. 25, and then the rotating shaft 15 and the movable sleeve disc 17 are rotated in the opposite direction to completely fill the spiral filter element 13 into the spiral groove 25, and then the rotating shaft 15 and the movable sleeve disc 17 are separated. The rotation direction of the rotating shaft 15 can be controlled by the rotation direction of the drive motor 9. Specifically, the drive motor 9 can be controlled by an external commutator. The commutator is a prior art and can be used in conjunction with the drive motor 9 in this device. Its specific control principle and model are not repeated here.

[0059] Specifically, the movable sleeve 17 is rotatably arranged on the inner bottom wall of the filter tank 6, a circular hole is opened in the middle of the movable sleeve 17, and a number of electromagnetic blocks 33 are equidistantly arranged on the inner bottom wall of the circular hole of the movable sleeve 17. A magnetic block 34 is arranged on the outer side of the rotating shaft 15, and the initial state of the magnetic block 34 and the electromagnetic block 33 is a separated state.

[0060] In this embodiment, a magnetic block 34 is provided on the surface of the rotating shaft 15 near the bottom end, and is used in conjunction with the electromagnetic block 33 provided on the bottom wall of the circular hole to achieve adsorption. The magnetic block 34 is driven by the rotating shaft 15 to control the distance between it and the annular electromagnetic block 33. When the magnetic block 34 is in contact with the electromagnetic block 33, an adsorption connection is achieved. It should be supplemented with the electromagnetic block 33 that the electromagnetic block 33 is energized by an external power supply and its on and off state is controlled to achieve the switching of the working state of the electromagnetic block 33. When the magnetic block 34 is attracted to the electromagnetic block 33, the electromagnetic block 33 is in an energized state. When the magnetic block 34 needs to be separated from the electromagnetic block 33, it is only necessary to turn off the power to the electromagnetic block 33. The electromagnetic block 33 in the energized state connects the rotating shaft 15 and the movable sleeve 17 as a whole, thereby driving the right-angle connecting rod 21 to make it move in a circular motion and drive the spiral strip to move along the spiral groove at the bottom of the spiral guide plate 14. The two groups of right-angle connecting rods 21 have different lengths, one group is shorter than the other group and is adapted to the spiral strip.

[0061] When the rotating shaft 15 is lowered to the maximum position under the action of the hydraulic lifting rod 35, the rotating shaft 15 and the movable sleeve disc 17 are adsorbed and connected as one, so that the rotating shaft 15 and the movable sleeve disc 17 are connected as one through the magnetic block 34. Therefore, when the rotating shaft 15 rotates, the movable sleeve disc 17 can be driven to rotate, and then the above-mentioned spiral filter element 13 can be replaced by controlling the rotation direction of the drive motor 9.

[0062] The above description is merely a preferred embodiment of the present invention and does not limit the present invention in any other manner. Any person skilled in the art may utilize the above-disclosed technical content to modify or modify the present invention into equivalent embodiments. However, any simple modifications, equivalent variations, and modifications to the above embodiments that do not depart from the technical content of the present invention and are based on the technical essence of the present invention shall still fall within the scope of protection of the present invention.

Claims

1. A high-efficiency multi-stage sewage treatment device, comprising a treatment tank body (1), a first reaction zone (2) and a second reaction zone (4), characterized in that: One end of the treatment tank body (1) is connected to a filter tank (6), and the inner wall of the treatment tank body (1) is equidistantly provided with microorganism placement frames (5). The inner wall of the treatment tank body (1) is provided with a barrier frame (3), and the barrier frame (3) divides the interior of the treatment tank body (1) into a first reaction zone (2) and a second reaction zone (4). An arc-shaped slot (18) is provided on the inner side of the filter tank (6), and an arc-shaped baffle (8) is movably connected to the inner wall of the arc-shaped slot (18). A motor frame (10) is provided on the top of the filter tank (6), and a drive motor ( 9), a square opening (11) is provided on the outside of the filter tank (6), a water inlet pipe (12) is provided on the outside of the filter tank (6), a discharge elbow (22) is provided at one end of the water inlet pipe (12), a spiral filter assembly is provided on the inner wall of the filter tank (6), the output end of the drive motor (9) is connected to a stirring assembly, the stirring assembly is provided on the inner side of the spiral filter assembly, a drive assembly is provided on the inner side of the barrier frame (3), wherein the barrier frame (3) is located in front of the microorganism placement frame (5), and a discharge valve is provided at the other end of the treatment tank body (1), and the discharge valve is connected to the treatment tank body (1); The driving assembly comprises a water inlet (30), a guide plate (31), a limiting hole (32), a guide port (20) and a driving part. A cavity is provided in the middle of the blocking frame (3). The water inlet (30) is provided on one side surface of the blocking frame (3). The guide plate (31) is fixedly arranged on the inner side wall of the cavity and is flush with the lower opening of the water inlet (30). The limiting hole (32) is provided on the other side surface of the blocking frame (3). The guide port (20) is provided on the other side surface of the blocking frame (3). The water inlet (30) is located below the top end of the limiting hole (32). The water inlet (30) is located above the guide port (20). The driving part is movably installed in the cavity of the blocking frame (3) and a part of the driving part is provided through the limiting hole (32). The spiral filter assembly comprises a spiral guide plate (14), a spiral filter element (13), a spiral groove (25), and a buckle (24), wherein the spiral guide plate (14) is fixedly mounted on the inner side wall of the filter tank (6), the spiral groove (25) is opened on the top surface of the spiral guide plate (14), the spiral filter element (13) is plugged into the inner wall of the spiral groove (25), wherein the bottom surface of the spiral filter element (13) is parallel to the inner bottom wall of the spiral groove (25), and the buckle (24) is movably snap-fitted to the upper end of the spiral guide plate (14), wherein the spiral guide plate (14) surrounds the stirring assembly; Both ends of the spiral guide plate (14) are open, the upper spiral end of the spiral filter element (13) is in a closed state, and the lower spiral end is in an open state. A spiral groove is provided on the bottom surface of the spiral guide plate (14), and a spiral strip is fixedly installed at one end of the buckle (24). The spiral strip is movably installed on the inner wall of the spiral groove, and the spiral strip can drive the spiral filter element (13) to rotate and slide along the inner wall of the spiral groove (25).

2. The high-efficiency multi-stage sewage treatment device according to claim 1, characterized in that: The driving part includes a shaft sleeve (26), a rotating striking plate (23), a water wheel (27), a support seat (28), and a floating block (29). The floating block (29) is movably arranged in a cavity inside the blocking frame (3). The support seat (28) is symmetrically fixedly arranged on the top surface of the floating block (29). The water wheel (27) is rotatably installed on the inner side of the two support seats (28). The shaft sleeve (26) is rotatably sleeved on the outer surface of the central axis of the water wheel (27). One end of the rotating striking plate (23) is fixedly installed on the shaft end of the central axis of the water wheel (27).

3. The high-efficiency multi-stage sewage treatment device according to claim 2, characterized in that: The end surface of the shaft sleeve (26) is arranged parallel to one side of the blocking frame (3), and the shaft end of the central axis of the water wheel (27) passes through the limiting hole (32). The water wheel (27) and the shaft sleeve (26) are respectively arranged inside and outside the blocking frame (3), and the initial position of the central axis of the water wheel (27) is located at the bottom end of the limiting hole (32).

4. The high-efficiency multi-stage sewage treatment device according to claim 1, characterized in that: The stirring assembly comprises a rotating shaft (15) and a stirring blade (16). The rotating shaft (15) is fixedly mounted on the output end of the driving motor (9). The rotating shaft (15) movably penetrates the motor frame (10). The stirring blade (16) is fixedly mounted on the outside of the rotating shaft (15). The rotating shaft (15) is located at the center of the spiral filter assembly. The stirring radius of the stirring blade (16) is smaller than the inner diameter of the spiral filter assembly.

5. The high-efficiency multi-stage sewage treatment device according to claim 4, characterized in that: A water pump assembly (7) is provided on the outside of the arc-shaped baffle (8), and the water pump assembly (7) consists of a liquid pump and a long tube. The water inlet end of the liquid pump is connected to one end of the long tube, and the other end of the long tube passes through the arc-shaped baffle (8) and extends to the inside of the filter tank (6). The discharge end of the liquid pump faces the inside of the second reaction zone (4). A push-pull handle is provided on the top of the arc-shaped baffle (8), and sealing rubber strips are provided on the end faces of the arc-shaped baffle (8). A hydraulic lifting rod (35) is provided on the outside of the filter tank (6), and the output end of the hydraulic lifting rod (35) is fixedly connected to the drive motor (9).

6. The high-efficiency multi-stage sewage treatment device according to claim 5, characterized in that: A right-angle connecting rod (21) is fixedly mounted on the bottom surface of the spiral strip, a movable sleeve disc (17) is fixedly mounted on the horizontal end of the right-angle connecting rod (21), and the movable sleeve disc (17) is rotatably arranged on the inner bottom wall of the filter tank (6). The movable sleeve disc (17) can be linked with the stirring assembly, and the vertical end of the right-angle connecting rod (21) is a telescopic structure.

7. The high-efficiency multi-stage sewage treatment device according to claim 6, characterized in that: A circular hole is provided in the middle of the movable sleeve disc (17), and electromagnetic blocks (33) are equidistantly provided inside the circular hole of the movable sleeve disc (17). A magnetic block (34) is provided outside the rotating shaft (15), and the magnetic block (34) and the electromagnetic block (33) can be magnetically connected.

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