Municipal sewage sedimentation tank sewage purification treatment equipment

Abstract

The present application relates to sewage treatment equipment technical field, specifically disclose a kind of municipal sewage sedimentation tank sewage purification treatment equipment, including water suction pipe, the bottom outer surface of water suction pipe is fixedly sleeved with counterweight ring, the top outer surface of water suction pipe is fixedly sleeved with buoyancy ring, still include: purification mechanism, the purification mechanism is fixedly installed on water suction pipe;Enhancement mechanism, the enhancement mechanism is fixedly installed on purification mechanism. By reciprocating spiral plate, intermittent filtration and intermittent self-cleaning of equipment can be realized, avoid the problem of blockage caused by the accumulation of impurities in spiral plate caused by traditional equipment always pumping for filtration, while also can greatly reduce the problem of winding of driving shaft, thereby greatly prolong the working time of the equipment, avoid the problem of frequent equipment cleaning.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment equipment technology, specifically a municipal wastewater sedimentation tank wastewater purification treatment equipment. Background Technology

[0002] Municipal wastewater sedimentation tanks are crucial components of urban wastewater treatment systems. Their function is to utilize gravity settling to allow suspended solids, flocculent matter, and some organic matter in the wastewater to naturally settle to the bottom, achieving solid-liquid separation and reducing the load on subsequent biological treatment units. In actual operation, a certain amount of light flocculent matter, algae, and fine particles still remain in the supernatant of the sedimentation tank. Direct discharge or entry into the next process can easily clog pipes or affect treatment efficiency. Therefore, wastewater purification equipment is often added to the sedimentation tank to further remove suspended impurities through pumping and filtration.

[0003] Existing municipal wastewater sedimentation tank purification equipment still has the following shortcomings in practical applications: First, traditional equipment typically uses a continuous pumping method. During the long-term unidirectional rotation of the spiral plate or impeller, fibrous flocs, hair, and other impurities mixed in the wastewater gradually become entangled on the drive shaft and accumulate in the gaps between the spiral plates, eventually leading to a sharp increase in pumping resistance, a decrease in flow rate, and even complete blockage. Operators need to frequently remove the equipment from the tank for cleaning, which is not only labor-intensive but also interrupts the wastewater treatment process, affecting the overall treatment efficiency. Second, the filter ring, as a key component for intercepting flocs, is easily clogged by fine impurities. Existing equipment mostly relies on the scouring effect of the water flow itself for cleaning, which has limited effectiveness; although some equipment is equipped with fixed bristles, the bristles are easily worn and deformed due to being in close contact with the filter screen surface for a long time, and the impurities brushed off still accumulate inside the filter ring, failing to be effectively discharged, and the clogging problem is not fundamentally solved. Third, multiple purification devices are usually placed in sedimentation tanks simultaneously, or a single device can easily drift to the corner of the tank wall under the push of water flow. Once the devices gather or stick to the edge, their effective filtration area is greatly reduced, and mutual interference causes a decrease in treatment efficiency. Existing equipment lacks a mechanism for active dispersion and preventing edge sticking, and can only rely on manual periodic adjustment of positions, which cannot achieve continuous and efficient purification operations. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] This invention provides a municipal sewage sedimentation tank sewage purification treatment device, which solves the problems mentioned in the background art above.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a municipal sewage sedimentation tank sewage purification treatment device, comprising a pumping pipe, a counterweight ring fixedly sleeved on the bottom outer surface of the pumping pipe, and a buoyancy ring fixedly sleeved on the top outer surface of the pumping pipe; further comprising: a purification mechanism fixedly mounted on the pumping pipe; and a reinforcing mechanism fixedly mounted on the purification mechanism; wherein the purification mechanism includes a drive shaft disposed inside the pumping pipe, wherein the drive shaft and the pumping pipe are configured to share the same central axis, and a spiral plate fixedly connected to the outer surface of the drive shaft, the outer side of the spiral plate being attached to the inner surface of the pumping pipe.

[0008] According to one embodiment of the present invention, a connecting ring is fixedly connected to the top of the water pumping pipe. The cross-section of the connecting ring is L-shaped. The lower surface of the connecting ring is attached to the upper surface of the buoyancy ring. A filter ring is fixedly connected to the upper edge of the connecting ring. A sealing disc is fixedly connected to the upper surface of the filter ring. The sealing disc, the connecting ring, and the filter ring are combined to form a complete annular cover. A gap is reserved between the top inner side of the connecting ring and the sealing disc.

[0009] According to one embodiment of the present invention, a motor is disposed above the sealing disc, wherein the top of the drive shaft is rotatably connected to the output end of the motor.

[0010] According to one embodiment of the present invention, the reinforcing mechanism includes a mounting plate, which is fixedly connected to the upper middle surface of the sealing disc. The motor is fixedly connected to the upper middle surface of the mounting plate, and the top of the drive shaft is rotatably connected to the upper middle surface of the mounting plate. The side surface of the mounting plate is provided with a mounting groove, wherein the cross-section of the mounting plate is set to H-shape.

[0011] According to one embodiment of the present invention, a magnetic ring is provided in the mounting groove, the magnetic ring is rotatably connected to the inner surface of the middle part of the mounting plate, a toggle rod is hinged to the outer surface of the magnetic ring by a torsion spring, a matching ring is rotatably connected to the inner surface of the mounting groove, wherein the matching ring and the magnetic ring are set to the same central axis, a guide rod is fixedly connected to the inner surface of the matching ring, and a push bar is fixedly connected to the outer surface of the matching ring.

[0012] According to one embodiment of the present invention, the push bar is configured as an arc shape and is made of rubber material, and the guide rod is inclined relative to the matching ring.

[0013] According to one embodiment of the present invention, a rotating ring is fixedly connected to the lower edge of the sealing disc, the outer surface of the rotating ring is attached to the top inner surface of the filter ring, and a connecting rod is symmetrically fixedly connected to the inner surface of the rotating ring. The end of the connecting rod away from the rotating ring is fixedly connected to the outer surface of the drive shaft through a gap reserved between the sealing disc and the connecting ring. A clamping plate is fixedly connected to the lower surface of the rotating ring, and the bottom surface of the clamping plate is attached to the upper surface of the connecting ring.

[0014] According to one embodiment of the present invention, a friction ring is rotatably connected to the middle of the connecting ring, and a second clamping plate is fixedly connected to the outer surface of the friction ring. The outer end of the second clamping plate is attached to the inner surface of the filter ring. Three first clamping plates and three second clamping plates are arranged around the central axis of the connecting ring, and the first clamping plates and the second clamping plates are of the same size.

[0015] According to one embodiment of the present invention, a groove is formed on one side surface of the rotating ring that fits against the filter ring, and a protrusion is fixedly connected to the top inner surface of the filter ring. The protrusion is positioned directly above the filter channel on the filter ring and is located in the groove. An air-gathering groove is formed inside the rotating ring, and an elastic telescopic platform is fixedly embedded in the air-gathering groove. The internal cavity of the elastic telescopic platform communicates with the air-gathering groove. The outer end of the elastic telescopic platform is located in the groove, and both sides of the outer end of the elastic telescopic platform are inclined surfaces. A filling cavity is formed at one end of the first clamping plate near the filter ring. An expansion bladder is fixedly filled inside the filling cavity. The internal cavity of the expansion bladder communicates with the air-gathering groove. An installation strip is fixedly connected to the outer surface of the expansion bladder. The installation strip is slidably mounted on the inner surface of the filling cavity, and bristles are installed on the outer surface of the installation strip.

[0016] When the wastewater in the sedimentation tank needs to be purified, the entire device can be placed into the wastewater. Due to the gravity of the counterweight ring, the bottom of the pumping pipe is submerged in the wastewater, while the top buoyancy ring floats on the water surface. The pumping pipe is in a vertical position. After the device is placed in the tank, the motor is started and operates in a reciprocating manner. The motor first drives the drive shaft to rotate counterclockwise for a period of time, and then clockwise for a period of time. When the drive shaft rotates counterclockwise, it drives the spiral plate to rotate counterclockwise, which begins to draw the wastewater from the bottom of the pumping pipe and move it upward. Finally, the wastewater enters the outer side of the connecting ring through the gap between the top of the connecting ring and the sealing plate, and is located inside the filter ring. At this time, the flocculent matter in the wastewater is intercepted inside the filter ring, while the water is discharged through the filter ring, thus achieving the purification of the flocculent matter in the wastewater. When the motor reverses, it drives the spiral plate to reverse, thereby discharging the wastewater from the spiral plate downward again.

[0017] (III) Beneficial Effects

[0018] This invention provides a municipal wastewater sedimentation tank wastewater purification treatment device. It has the following beneficial effects:

[0019] (I) This municipal sewage sedimentation tank sewage purification equipment achieves intermittent filtration and intermittent self-cleaning of the equipment through the reciprocating rotating spiral plate. This avoids the clogging problem caused by the accumulation of impurities in the spiral plate due to the continuous pumping of water for filtration in traditional equipment. At the same time, it can also greatly reduce the problem of drive shaft entanglement, thereby significantly extending the working time of this equipment and avoiding the need for frequent equipment cleaning. When the drive shaft rotates, it will also drive the connecting rod to rotate, thereby driving the rotating ring to rotate back and forth. When the rotating ring rotates, it will drive the No. 1 clamping plate to continuously contact and squeeze with the No. 2 clamping plates on both sides, and overcome the resistance of the friction ring to drive the friction ring to rotate. This achieves continuous compression of flocculent matter during filtration, increasing the usable cavity area inside the filter ring, greatly improving the sewage treatment time, and avoiding the problem of filter ring clogging after a short period of operation in traditional treatment equipment.

[0020] (II) In this municipal sewage sedimentation tank sewage purification equipment, the ends of clamps No. 1 and No. 2 are attached to the inner surface of the filter ring. The rotation of clamps No. 1 and No. 2 continuously scrapes the filter channels on the filter ring, further reducing the possibility of filter ring blockage and increasing the working time of the equipment. When the rotating ring rotates, it drives the internal elastic telescopic platform to continuously contact the protrusion. The compression of the protrusion causes the elastic telescopic platform to contract, thereby increasing the internal air pressure of the air collection tank, that is, the internal air pressure of the expansion bladder. This causes the mounting strip to move outward, ultimately driving the bristles to continuously contact and compress the inner surface of the filter ring. This means that whenever clamp No. 1 moves to the filter channel during filtration, the bristles will automatically extend to clean the channel, further improving the anti-clogging ability of the equipment. At the same time, it avoids the problem of poor bristle life caused by directly pressing the bristles to the inner surface of the filter ring in traditional equipment.

[0021] (III) This municipal sewage sedimentation tank sewage purification equipment is equipped with a magnetic ring in the mounting plate. The magnetic ring rotates with the drive shaft through magnetic adsorption. When the pumping pipe is pumping water, the drive shaft rotates counterclockwise. At this time, under the action of the hinge, the actuating rod cannot brake the guide rod, that is, the push bar connected to the matching ring is in a stationary state. When the drive shaft reverses to perform self-cleaning, the actuating rod starts to drive the push bar to rotate due to the limiting action of the guide rod. This enables the equipment to move freely in the sedimentation tank to the edge of the sedimentation tank. The drainage action of the pumping pipe combined with the rotation and squeezing action of the push bar quickly removes the equipment from the edge of the sedimentation tank. This avoids the problem of the equipment being unable to detach after moving to the wall of the sedimentation tank, which reduces the sewage treatment efficiency. At the same time, when multiple devices are placed in the sedimentation tank, the rotation of the push bar can quickly disperse the devices that are close together and move them away, avoiding the problem of low treatment efficiency caused by the devices piling up together. In addition, by increasing the self-cleaning ability, it can also push the sewage in the pumping pipe downward to drive the sewage flow in the sedimentation tank, thereby improving the flow capacity of flocculent matter in the sedimentation tank, making it easier to be absorbed and treated. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the spiral plate of the present invention;

[0024] Figure 3 This is a schematic diagram of the drive shaft and its connection structure of the present invention;

[0025] Figure 4 This is a schematic diagram of the rotating ring and its connection structure of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the filter ring of the present invention;

[0027] Figure 6 This is a schematic diagram of the connecting ring and friction ring of the present invention;

[0028] Figure 7 This is a schematic diagram of the internal structure of the No. 1 clamp of the present invention;

[0029] Figure 8 This is a schematic diagram of the mounting plate of the present invention.

[0030] In the diagram: 1. Pumping pipe; 2. Counterweight ring; 3. Buoyancy ring; 4. Purification mechanism; 41. Drive shaft; 42. Spiral plate; 43. Connecting ring; 44. Filter ring; 45. Sealing disc; 46. Motor; 5. Reinforcing mechanism; 51. Mounting plate; 52. Mounting groove; 53. Magnetic ring; 54. Actuating rod; 55. Matching ring; 56. Guide rod; 57. Push bar; 58. Rotating ring; 59. Connecting rod; 510. No. 1 clamping plate; 511. Friction ring; 512. No. 2 clamping plate; 513. Ring groove; 514. Protrusion; 515. Air gathering groove; 516. Elastic telescopic platform; 517. Filling cavity; 518. Expansion bladder; 519. Mounting bar. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] First embodiment: as follows Figures 1 to 8 As shown, the present invention provides a technical solution: a municipal sewage sedimentation tank sewage purification treatment device, including a pumping pipe 1, a counterweight ring 2 fixedly sleeved on the bottom outer surface of the pumping pipe 1, and a buoyancy ring 3 fixedly sleeved on the top outer surface of the pumping pipe 1, and further including:

[0033] Purification mechanism 4 is fixedly installed on the water pumping pipe 1;

[0034] Reinforcing mechanism 5 is fixedly installed on purification mechanism 4;

[0035] The purification mechanism 4 includes a drive shaft 41, which is located inside the water pumping pipe 1. The drive shaft 41 and the water pumping pipe 1 are set to the same central axis. A spiral plate 42 is fixedly connected to the outer surface of the drive shaft 41, and the outer side of the spiral plate 42 is attached to the inner surface of the water pumping pipe 1.

[0036] A connecting ring 43 is fixedly connected to the top of the water pumping pipe 1. The cross-section of the connecting ring 43 is L-shaped. The lower surface of the connecting ring 43 is attached to the upper surface of the buoyancy ring 3. A filter ring 44 is fixedly connected to the upper edge of the connecting ring 43. A sealing disc 45 is fixedly connected to the upper surface of the filter ring 44. The sealing disc 45, the connecting ring 43, and the filter ring 44 are combined to form a complete annular cover. A gap is reserved between the top inner side of the connecting ring 43 and the sealing disc 45.

[0037] A motor 46 is disposed above the sealing disc 45, wherein the top of the drive shaft 41 is rotatably connected to the output end of the motor 46.

[0038] Second embodiment: as follows Figures 1 to 8 As shown, the reinforcing mechanism 5 includes a mounting plate 51, which is fixedly connected to the upper surface of the middle part of the sealing disc 45. The motor 46 is fixedly connected to the upper surface of the middle part of the mounting plate 51, and the top of the drive shaft 41 is rotatably connected to the upper surface of the middle part of the mounting plate 51. The side surface of the mounting plate 51 is provided with a mounting groove 52, and the cross-section of the mounting plate 51 is set to H-shape.

[0039] A magnetic ring 53 is provided in the mounting groove 52. The magnetic ring 53 is rotatably connected to the inner surface of the middle part of the mounting plate 51. A toggle rod 54 is hinged to the outer surface of the magnetic ring 53 by a torsion spring. A matching ring 55 is rotatably connected to the inner surface of the mounting groove 52. The matching ring 55 and the magnetic ring 53 are set to the same central axis. A guide rod 56 is fixedly connected to the inner surface of the matching ring 55, and a push bar 57 is fixedly connected to the outer surface of the matching ring 55.

[0040] The push bar 57 is arc-shaped and made of rubber material, and the guide rod 56 is inclined relative to the matching ring 55.

[0041] A rotating ring 58 is fixedly connected to the lower edge of the sealing disc 45. The outer surface of the rotating ring 58 is attached to the top inner surface of the filter ring 44. A connecting rod 59 is symmetrically fixedly connected to the inner surface of the rotating ring 58. The end of the connecting rod 59 away from the rotating ring 58 is fixedly connected to the outer surface of the drive shaft 41 through the gap reserved between the sealing disc 45 and the connecting ring 43. A clamping plate 510 is fixedly connected to the lower surface of the rotating ring 58. The bottom surface of the clamping plate 510 is attached to the upper surface of the connecting ring 43.

[0042] A friction ring 511 is rotatably connected to the middle of the connecting ring 43. A second clamping plate 512 is fixedly connected to the outer surface of the friction ring 511. The outer end of the second clamping plate 512 is attached to the inner surface of the filter ring 44. Three first clamping plates 510 and three second clamping plates 512 are arranged around the central axis of the connecting ring 43, and the first clamping plates 510 and the second clamping plates 512 are of the same size.

[0043] A groove 513 is formed on one side surface of the rotating ring 58 that fits against the filter ring 44. A protrusion 514 is fixedly connected to the top inner surface of the filter ring 44. The protrusion 514 is positioned directly above the filter channels on the filter ring 44 and is located in the groove 513. An air-gathering groove 515 is formed inside the rotating ring 58. An elastic telescopic platform 516 is fixedly embedded in the air-gathering groove 515. The internal cavity of the elastic telescopic platform 516 communicates with the air-gathering groove 515. The outer end is set in the annular groove 513, and the two sides of the outer end of the elastic telescopic platform 516 are set as inclined surfaces. The first clamping plate 510 has a filling cavity 517 at one end near the filter ring 44. The filling cavity 517 is fixedly filled with an expansion bladder 518. The internal cavity of the expansion bladder 518 is connected to the air gathering groove 515. An installation strip 519 is fixedly connected to the outer surface of the expansion bladder 518. The installation strip 519 is slidably installed on the inner surface of the filling cavity 517, and the outer surface of the installation strip 519 is equipped with bristles.

[0044] During operation, when the wastewater in the sedimentation tank needs to be purified, the entire device is placed into the wastewater. Due to the gravity of the counterweight ring 2, the bottom of the suction pipe 1 is submerged in the wastewater, while the top buoyancy ring 3 floats on the surface. The suction pipe 1 is in a vertical position. After the device is placed in the tank, the motor 46 is started and operates reciprocally. The motor 46 first drives the drive shaft 41 to rotate counterclockwise for a period of time, then clockwise for a period of time. When the drive shaft 41 rotates counterclockwise, it drives the spiral plate 42 to rotate counterclockwise, thus drawing the wastewater from the bottom of the suction pipe 1 upwards. Finally, the wastewater enters the outer side of the connecting ring 43 through the gap between the top of the connecting ring 43 and the sealing plate 45, located inside the filter ring 44. At this point, the flocculent matter in the wastewater is intercepted by the filter ring 44. Inside the filter ring 44, water is discharged through the filter ring 44, thus purifying the wastewater into flocculent particles. When the motor 46 reverses, it drives the spiral plate 42 to reverse, thereby discharging the wastewater from the spiral plate 42 downwards. The reciprocating rotation of the spiral plate 42 achieves intermittent filtration and intermittent self-cleaning of the equipment, avoiding the blockage problem caused by the accumulation of impurities in the spiral plate 42 due to continuous water pumping for filtration in traditional equipment. It also significantly reduces the problem of the drive shaft 41 getting tangled, thereby greatly extending the working time of the equipment and avoiding the need for frequent equipment cleaning. When the drive shaft 41 rotates, it also drives the connecting rod 59 to rotate, thereby driving the rotating ring 58 to rotate reciprocally. When the rotating ring 58 rotates, it drives the first clamping plate 510 to continuously move against its two sides. The second clamping plate 512 contacts and squeezes the friction ring 511, overcoming its resistance and causing it to rotate. This continuously presses the flocculent material during filtration, increasing the usable cavity area inside the filter ring 44 and significantly improving wastewater treatment time. This avoids the problem of filter ring 44 becoming clogged after a short period of operation, as is common in traditional treatment equipment. Simultaneously, the ends of the first clamping plate 510 and the second clamping plate 512 near the filter ring 44 are attached to its inner surface. The rotation of the first clamping plate 510 and the second clamping plate 512 continuously scrapes away impurities from the filter channels on the filter ring 44, further reducing the likelihood of clogging and increasing the equipment's operating time. Furthermore, the rotation of the rotating ring 58 causes its internal elastic extension... The retractable platform 516 continuously contacts the protrusion 514. The compression from the protrusion 514 causes the elastic retractable platform 516 to contract, increasing the internal air pressure of the air-gathering groove 515, and consequently, the internal air pressure of the expansion bladder 518. This causes the mounting strip 519 to move outwards, ultimately driving the bristles to continuously contact and compress the inner surface of the filter ring 44. This ensures that during filtration, whenever the clamping plate 510 moves to the filter channel, the bristles automatically extend to clean the channel, further improving the anti-clogging capability of the device. It also avoids the problem of poor bristle lifespan caused by traditional equipment where the bristles are constantly compressed against the inner surface of the filter ring 44. A magnetic ring 53 is installed in the mounting plate 51, which rotates with the drive shaft 41 through magnetic attraction.When water is pumped from the pumping pipe 1, the drive shaft 41 rotates counterclockwise. At this time, due to the hinge action, the actuating rod 54 cannot brake the guide rod 56, meaning the pushing strip 57 connected to the matching ring 55 is stationary. However, when the drive shaft 41 reverses direction for self-cleaning, the actuating rod 54, due to the limiting effect of the guide rod 56, begins to drive the pushing strip 57 to rotate. This allows the equipment to move freely within the sedimentation tank to the edge, where the drainage action of the pumping pipe 1 combined with the rotational squeezing action of the pushing strip 57 quickly detaches the equipment from the sedimentation tank edge. This avoids the problem of the equipment being unable to detach after moving to the wall of the sedimentation tank, thus reducing wastewater treatment efficiency. Simultaneously, when multiple units are placed in the sedimentation tank, the rotation of the pushing strip 57 quickly disperses nearby units, preventing them from piling up and causing low treatment efficiency. Furthermore, by increasing the self-cleaning capability, the wastewater in the pumping pipe 1 is pushed downwards, causing the wastewater in the sedimentation tank to flow, thereby improving the flow capacity of flocculent matter in the sedimentation tank, making it easier to absorb and treat.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A municipal sewage sedimentation tank sewage purification treatment device, comprising a pumping pipe (1), characterized in that: The bottom outer surface of the pumping pipe (1) is fixedly fitted with a counterweight ring (2), and the top outer surface of the pumping pipe (1) is fixedly fitted with a buoyancy ring (3). The pumping pipe (1) also includes: Purification mechanism (4), which is fixedly installed on the water pumping pipe (1); The reinforcing mechanism (5) is fixedly installed on the purification mechanism (4); The purification mechanism (4) includes a drive shaft (41), which is located inside the water pumping pipe (1). The drive shaft (41) and the water pumping pipe (1) are set to the same central axis. A spiral plate (42) is fixedly connected to the outer surface of the drive shaft (41), and the outer side of the spiral plate (42) is attached to the inner surface of the water pumping pipe (1).

2. The municipal sewage sedimentation tank sewage purification treatment equipment according to claim 1, characterized in that: A connecting ring (43) is fixedly connected to the top of the water pump (1). The cross-section of the connecting ring (43) is L-shaped. The lower surface of the connecting ring (43) is attached to the upper surface of the buoyancy ring (3). A filter ring (44) is fixedly connected to the upper edge of the connecting ring (43). A sealing disc (45) is fixedly connected to the upper surface of the filter ring (44). The sealing disc (45), the connecting ring (43), and the filter ring (44) are combined to form a complete annular cover. A gap is reserved between the top inner side of the connecting ring (43) and the sealing disc (45).

3. The municipal sewage sedimentation tank sewage purification treatment equipment according to claim 2, characterized in that: A motor (46) is disposed above the sealing disc (45), wherein the top of the drive shaft (41) is rotatably connected to the output end of the motor (46).

4. The municipal sewage sedimentation tank sewage purification treatment equipment according to claim 3, characterized in that: The reinforcing mechanism (5) includes a mounting plate (51), which is fixedly connected to the upper middle surface of the sealing disc (45). The motor (46) is fixedly connected to the upper middle surface of the mounting plate (51), and the top of the drive shaft (41) is rotatably connected to the upper middle surface of the mounting plate (51). The side surface of the mounting plate (51) is provided with a mounting groove (52), and the cross-section of the mounting plate (51) is set to H-shape.

5. The municipal sewage sedimentation tank sewage purification treatment equipment according to claim 4, characterized in that: A magnetic ring (53) is provided in the mounting groove (52). The magnetic ring (53) is rotatably connected to the inner surface of the middle part of the mounting plate (51). A toggle rod (54) is hinged to the outer surface of the magnetic ring (53) by a torsion spring. A matching ring (55) is rotatably connected to the inner surface of the mounting groove (52). The matching ring (55) and the magnetic ring (53) are set to the same central axis. A guide rod (56) is fixedly connected to the inner surface of the matching ring (55). A push bar (57) is fixedly connected to the outer surface of the matching ring (55).

6. The municipal sewage sedimentation tank sewage purification treatment equipment according to claim 5, characterized in that: The push bar (57) is arc-shaped and made of rubber material, and the guide rod (56) is inclined relative to the matching ring (55).

7. A municipal sewage sedimentation tank sewage purification treatment device according to claim 6, characterized in that: A rotating ring (58) is fixedly connected to the lower edge of the sealing disc (45). The outer surface of the rotating ring (58) is attached to the top inner surface of the filter ring (44). A connecting rod (59) is symmetrically fixedly connected to the inner surface of the rotating ring (58). The end of the connecting rod (59) away from the rotating ring (58) is fixedly connected to the outer surface of the drive shaft (41) through the gap reserved between the sealing disc (45) and the connecting ring (43). A clamping plate (510) is fixedly connected to the lower surface of the rotating ring (58). The bottom surface of the clamping plate (510) is attached to the upper surface of the connecting ring (43).

8. The municipal sewage sedimentation tank sewage purification treatment equipment according to claim 7, characterized in that: The middle part of the connecting ring (43) is rotatably connected to a friction ring (511), and the outer surface of the friction ring (511) is fixedly connected to a second clamping plate (512). The outer end of the second clamping plate (512) is attached to the inner surface of the filter ring (44). There are three first clamping plates (510) and three second clamping plates (512) around the central axis of the connecting ring (43), and the first clamping plates (510) and the second clamping plates (512) are of the same size.

9. A municipal sewage sedimentation tank sewage purification treatment device according to claim 8, characterized in that: The rotating ring (58) has a groove (513) on one side surface of the filter ring (44). A protrusion (514) is fixedly connected to the top inner surface of the filter ring (44). The protrusion (514) is located directly above the filter channel on the filter ring (44) and is located in the groove (513). An air-gathering groove (515) is provided inside the rotating ring (58). An elastic telescopic platform (516) is fixedly embedded in the air-gathering groove (515). The internal cavity of the elastic telescopic platform (516) is connected to the air-gathering groove (515). The outer end of the elastic telescopic platform (516) is set in the annular groove (513), and the two sides of the outer end of the elastic telescopic platform (516) are set as inclined surfaces. The first clamping plate (510) has a filling cavity (517) at one end near the filter ring (44). The filling cavity (517) is fixedly filled with an expansion bladder (518). The internal cavity of the expansion bladder (518) is connected to the gas gathering groove (515). The outer surface of the expansion bladder (518) is fixedly connected with an installation strip (519). The installation strip (519) is slidably installed on the inner surface of the filling cavity (517), and the outer surface of the installation strip (519) is equipped with bristles.

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