A water quality treatment system for water conservancy projects

By setting a collection shell and sliding groove on the main body of the aerated grit chamber, combined with the design of a drive plate and agitator blades, the problems of sand and gravel agglomeration and uneven sand settling are solved, achieving efficient sand and gravel collection and pipe dredging.

CN122301307APending Publication Date: 2026-06-30WUXI HENGCHENG WATER CONSERVANCY ENG CONSTR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WUXI HENGCHENG WATER CONSERVANCY ENG CONSTR CO LTD
Filing Date
2026-05-26
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The existing sand and gravel adsorption equipment installed on the cable tray is prone to pipe blockage due to sand and gravel clumping, and uneven aeration and sand settling result in some sand and gravel not being processed in time.

Method used

The system utilizes a collection shell and sliding trough installed on the main body of the aerated grit chamber, with pipes installed on the bridge frame. Combined with a drive plate and agitator blades, the system uses aeration components to aerate the grit, which in turn works with the sludge collection components to push the sliding plate to loosen the grit. The moving wheels and agitator blades further disperse the grit, while the drive plate clears the pipes, thus expanding the treatment coverage area.

Benefits of technology

This effectively prevented pipe blockage, improved sand and gravel collection efficiency, expanded the treatment coverage, and ensured timely processing of sand and gravel.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention relates to the field of water quality treatment technology and discloses a water quality treatment system for water conservancy projects. The system includes an aerated grit chamber body with two collection shells placed on top. Each collection shell has a sliding groove within its inner cavity, with rectangular openings at both ends. A bridge frame is slidably mounted within the two sliding grooves, and two installation pipes are mounted on the bridge frame. One end of each installation pipe is located on a collection shell, and the other end is attached to an installation shell. This invention, through the aeration component and the stain collection component, efficiently absorbs sediment from the water and the bottom of the aerated grit chamber body. The rectangular shells drive the sliding plate to loosen a large area of ​​sediment, and the moving wheels, in conjunction with the stirring blades, disperse the sediment, significantly improving collection efficiency. The bridge frame moves along the sliding grooves, causing the stain collection component to move horizontally, expanding the treatment coverage area. The drive plate can unclog the inner cavities of the installation shells and connecting pipes in real time, effectively preventing blockages.
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Description

Technical Field

[0001] This invention belongs to the field of water quality treatment technology, specifically, it relates to a water quality treatment system for water conservancy projects. Background Technology

[0002] In the field of water quality management in water conservancy projects, the efficient removal of suspended pollutants in water bodies and sediment deposited at the bottom of structures is a key step in improving water quality.

[0003] The existing sand and gravel adsorption equipment installed on the cable trays has several drawbacks. Due to the large amount of sand and gravel present, and the potential for large agglomerations during aeration, the adsorption pipes can become clogged. Furthermore, the varying amounts of sand and gravel at the bottom of the aerated grit chamber result in sand and gravel being lifted more slowly in areas with more sand and gravel, leading to situations where some sand and gravel remain after the cable tray moves away from the adsorption unit, preventing timely processing.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows: A water quality treatment system for a water conservancy project includes an aerated grit chamber body. Two collection shells are placed above the aerated grit chamber body. The inner cavities of the two collection shells are provided with sliding grooves, each with a rectangular opening at both ends. A bridge frame is slidably mounted inside the two sliding grooves. Two installation pipes are mounted on the bridge frame. One end of each installation pipe is located on a collection shell, and the other end is attached to an installation shell. Connecting pipes penetrate the bottoms of the two installation shells. A stain collection assembly is located at the other end of each connecting pipe. The installation shells and connecting pipes... The cavity is equipped with two drive plates, which are used to unclog the inner cavity of the mounting shell and connecting pipes; rectangular shells are also provided on both sides of the stain collection component, and sliding plates are inserted into the opposite side walls of the two rectangular shells, with mounting slots on the sliding plates. The two sliding plates are used to push the sand and gravel deposited at the bottom of the inner cavity of the aerated grit chamber. Agitators are provided in the two mounting slots, and agitators are used to disturb the pushed sand and gravel. The two sliding plates are provided with moving wheels on their side walls, and an aeration component is provided at the bottom of the aerated grit chamber.

[0006] In a preferred embodiment of the present invention, two connectors are provided on each side wall of the two collection shells. Each connector is symmetrical to the other. A connecting plate is provided between each pair of the ends of each connector that are away from the collection shell. Each connecting plate is symmetrical to the other. A guide rod is provided between each pair of the connecting plates. Each guide rod passes through the rectangular slot and the sliding slot. Each guide rod is symmetrical to the other.

[0007] In a preferred embodiment of the present invention, the stain collection assembly has placement slots on both sides of its side walls, the two placement slots are symmetrical to each other, and protective cylinders are provided on the opposite side walls of the inner cavities of the two placement slots. Each pair of protective cylinders is symmetrical to each other, and a rectangular shell is provided between each pair of protective cylinders.

[0008] In a preferred embodiment of the present invention, each of the protective cylinder cavities is further provided with a mounting bearing, each mounting bearing is respectively provided on the opposite two side walls of the stain collection assembly cavity, each mounting bearing is provided with a rotating rod, each rotating rod is symmetrical to each other, the other end of each rotating rod is provided on the rectangular housing, each rotating rod is provided with a torsion spring, and the two ends of each torsion spring are respectively provided on the opposite two side walls of the mounting bearing and the rectangular housing.

[0009] In a preferred embodiment of the present invention, each of the two rectangular housing cavities is provided with two return springs, the other end of each return spring is respectively provided on a sliding plate, and each sliding plate has a sliding groove through the two side walls of the mounting groove.

[0010] In a preferred embodiment of the present invention, each of the inner cavities of the sliding groove is provided with a slide rail on both opposite side walls, each slide rail is symmetrical to the other, each slide rail is slidably provided with a sliding block, each sliding block is symmetrical to the other, each sliding block is provided with a rotating rod between each pair of sliding blocks, each rotating rod is provided with a moving wheel at both ends, each moving wheel is symmetrical to the other, and each rotating rod is connected to an agitator blade at the mounting slot.

[0011] In a preferred embodiment of the present invention, each of the rotating rods is provided with a rotating shaft at one of its opposite ends, and the rotating shaft moves through the stain collection assembly. Each of the rotating shafts is provided with a cam at one of its opposite ends, each of the cams is symmetrical to each other, and each of the cams is provided with an overlapping rod above each other, and a connecting rod is provided between each of the overlapping rods.

[0012] In a preferred embodiment of the present invention, two spiral guide plates are provided on the two side walls of the stain collection assembly, and a connecting rod is slidably provided through the middle of each spiral guide plate.

[0013] In a preferred embodiment of the present invention, a placement rod is provided above each of the two fixed blocks, and a swing arm is provided on the opposite side walls above the two placement rods. The two swing arms are symmetrical to each other, and a driving block is provided at the end of each swing arm away from the placement rod.

[0014] In a preferred embodiment of the present invention, the two drive blocks are symmetrical to each other and the two drive blocks are movable through the mounting housing, and a drive plate is provided at one end of the two drive blocks opposite to each other.

[0015] Compared with the prior art, the present invention has the following advantages: This invention utilizes an aeration component in conjunction with a stain collection component to efficiently extract sand and gravel deposited in water and at the bottom of the aerated grit chamber. The rectangular shell drives a sliding plate to loosen a large area of ​​sand and gravel, while the moving wheels, in conjunction with the stirring blades, disperse the sand and gravel, significantly improving collection efficiency. The bridge moves along the sliding groove, causing the installation pipes, installation shell, connecting pipes, and stain collection component to move horizontally, expanding the treatment coverage area. The drive plate can unclog the inner cavity of the installation shell and connecting pipes in real time, effectively preventing blockages.

[0016] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0017] In the attached diagram: Figure 1 A three-dimensional structural diagram of a water quality treatment system for a water conservancy project; Figure 2 A schematic cross-sectional view of the aerated grit chamber body in a water quality treatment system for a water conservancy project. Figure 3 A water quality treatment system for water conservancy projects Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 A schematic diagram of a partial internal structure of the aerated grit chamber of a water quality treatment system for a water conservancy project. Figure 5 A schematic diagram of a stain collection component in a water quality treatment system for a water conservancy project. Figure 6 A side view of a stain collection component in a water quality treatment system for a water conservancy project. Figure 7 A partial cross-sectional view of a stain collection component in a water quality treatment system for a water conservancy project. Figure 8 A water quality treatment system for water conservancy projects Figure 8 Enlarged structural diagram at point C; Figure 9A schematic cross-sectional view of the installation casing of a water quality treatment system for a water conservancy project. Figure 10 A water quality treatment system for water conservancy projects Figure 9 Enlarged structural diagram at point D.

[0018] In the picture: 1. Aerated grit chamber body; 11. Collection shell; 12. Sliding trough; 121. Rectangular trough opening; 122. Connector; 123. Connecting plate; 124. Guide rod; 13. Cable tray; 14. Installation pipe; 15. Installation shell; 16. Connecting pipe; 17. Sludge collection assembly; 171. Placement trough opening; 18. Aeration assembly; 2. Protective cylinder; 21. Mounting bearing; 211. Rotating rod; 212. Torsion spring; 22. Rectangular housing; 222. Return spring; 23. Sliding plate; 231. Mounting slot; 232. Sliding slot; 233. Slide rail; 234. Sliding block; 24. Moving wheel; 241. Rotating rod; 242. Agitator blade; 3. Rotating shaft; 31. Cam; 32. Overlapping rod; 321. Connecting rod; 33. Recurved guide plate; 34. Fixing block; 341. Placement rod; 35. Swing arm; 351. Drive block; 352. Drive plate. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention.

[0020] Example 1:

[0021] like Figures 1 to 10As shown, a water quality treatment system for a water conservancy project includes an aerated grit chamber body 1. Two collection shells 11 are placed above the aerated grit chamber body 1. The inner cavity of each collection shell 11 is provided with a sliding groove 12, and both ends of the sliding groove 12 have rectangular openings 121. A bridge frame 13 is slidably mounted inside the two sliding grooves 12. Two installation pipes 14 are mounted on the bridge frame 13. One end of each installation pipe 14 is located on the collection shell 11, and the other end is provided with an installation shell 15. Connecting pipes 16 penetrate the bottom of each installation shell 15. A stain collection component 17 is provided at the other end of each connecting pipe 16. The inner cavities of the installation shells 15 and the connecting pipes 16 are... Two drive plates 352 are provided, and the drive plates 352 are used to unclog the inner cavity of the mounting shell 15 and the connecting pipe 16; rectangular shells 22 are also provided on both sides of the stain collection component 17, and sliding plates 23 are inserted into the opposite side walls of the two rectangular shells 22, and mounting slots 231 are opened on the sliding plates 23. The two sliding plates 23 are used to push the sand and gravel deposited at the bottom of the inner cavity of the aerated grit chamber 1. Agitator blades 242 are provided in the two mounting slots 231, and agitator blades 242 are used to disturb the pushed sand and gravel. Moving wheels 24 are provided on the side walls of the two sliding plates 23 respectively. An aeration component 18 is provided at the bottom of the aerated grit chamber 1. The aeration component 18, in conjunction with the stain collection component 17, efficiently absorbs sand and gravel deposited in the water and at the bottom of the aerated grit chamber 1. The rectangular shell 22 drives the sliding plate 23 to loosen the sand and gravel over a wide area. The moving wheel 24, in conjunction with the stirring blade 242, disperses the sand and gravel, significantly improving collection efficiency. The bridge frame 13 moves along the sliding groove 12, driving the installation pipe 14, installation shell 15, connecting pipe 16, and stain collection component 17 to move horizontally, expanding the treatment coverage area. The drive plate 352 can unclog the inner cavity of the installation shell 15 and connecting pipe 16 in real time, effectively avoiding blockage problems.

[0022] like Figures 1 to 3 As shown in the specific embodiment, two connectors 122 are provided on each side wall of the two collection housings 11. Each connector 122 is symmetrical to the other. A connecting plate 123 is provided between each pair of ends of each connector 122 away from the collection housing 11. Each connecting plate 123 is symmetrical to the other. A guide rod 124 is provided between each pair of connecting plates 123. Each guide rod 124 passes through the rectangular slot 121 and the sliding groove 12, and each guide rod 124 is symmetrical to the other. In this configuration, the guide rods 124 are fixed by the connectors 122 and the connecting plates 123, so that the guide rods 124 pass through the rectangular slot 121 and the sliding groove 12, providing precise guidance for the horizontal sliding of the bridge frame 13, while enhancing the structural stability of the connection between the collection housing 11 and the bridge frame 13, and avoiding deviation or shaking during the sliding process.

[0023] Example 2:

[0024] The difference between the above embodiments and this embodiment is that: Figures 1 to 2 and Figures 4 to 9 as well as Figure 10 As shown, a water quality treatment system for a water conservancy project includes a stain collection component 17 with placement slots 171 on both side walls. The two placement slots 171 are symmetrical, and protective cylinders 2 are installed on opposite side walls of the inner cavity of each placement slot 171. Each pair of protective cylinders 2 is symmetrical, and a rectangular shell 22 is installed between each pair of protective cylinders 2. The placement slots 171 provide installation space for the protective cylinders 2, which protect the internal components and simultaneously ensure a stable connection between the rectangular shell 22 and the stain collection component 17, ensuring that the rectangular shell 22 moves synchronously with the stain collection component 17.

[0025] like Figures 1 to 2 and Figures 4 to 9 As shown in the specific embodiment, each protective cylinder 2 is further provided with a mounting bearing 21 inside its cavity. Each mounting bearing 21 is respectively located on opposite side walls of the inner cavity of the stain collection assembly 17. Each mounting bearing 21 is provided with a rotating rod 211, and each rotating rod 211 is symmetrical to each other. The other end of each rotating rod 211 is located on the rectangular housing 22. Each rotating rod 211 is provided with a torsion spring 212, and the two ends of each torsion spring 212 are respectively located on opposite side walls of the mounting bearing 21 and the rectangular housing 22. In this configuration, the mounting bearing 21 reduces the rotational resistance of the rotating rod 211, allowing the rotating rod 211 to drive the rectangular housing 22 to rotate flexibly. At the same time, the torsion spring 212 uses its own elastic potential energy to automatically reset after the rectangular housing 22 rotates, ensuring the continuity of subsequent sand and gravel pushing operations.

[0026] like Figures 1 to 2 and Figures 4 to 9 As shown, furthermore, each of the two rectangular shells 22 is equipped with two return springs 222 inside the cavity. The other end of each return spring 222 is respectively mounted on the sliding plate 23. The two opposite side walls of each sliding plate 23 are respectively provided with sliding slots 232 through the two side walls of the mounting slot 231. In this configuration, the return springs 222 provide elastic support for the sliding plates 23, so that the sliding plates 23 can retract into the rectangular shell 22 for buffering when they are in contact with the inner wall of the aerated grit chamber body 1, avoiding rigid collisions that could damage the components. The sliding slots 232 reserve space for the subsequent installation of components, ensuring the rationality of the structural assembly.

[0027] like Figures 1 to 2 and Figures 4 to 9As shown, furthermore, each sliding groove 232 has a sliding rail 233 on each of its opposite side walls. Each pair of sliding rails 233 is symmetrical. Each sliding rail 233 has a sliding block 234 slidably mounted on it. Each pair of sliding blocks 234 is symmetrical. A rotating rod 241 is positioned between each pair of sliding blocks 234. Each rotating rod 241 has a moving wheel 24 at both ends. Each moving wheel 24 is symmetrical. An agitator 242 is connected to each rotating rod 241 at the mounting groove 231. In this configuration, the sliding rails 233 and sliding blocks 234 cooperate to achieve flexible adjustment of the rotating rod 241, ensuring that the moving wheels 24 always remain in contact with the bottom of the aerated grit chamber body 1. When the moving wheels 24 rotate, they drive the agitator 242 to rotate synchronously via the rotating rod 241, efficiently dispersing the sand and gravel raised during aeration and improving sand and gravel absorption efficiency.

[0028] like Figures 1 to 2 and Figures 4 to 9 As shown, each rotating rod 211 has a rotating shaft 3 at one of its opposite ends, and the rotating shaft 3 moves through the stain collection assembly 17. Each rotating shaft 3 has a cam 31 at one of its opposite ends, and each cam 31 is symmetrical to the others. Each cam 31 has an overlapping rod 32 above it, and each overlapping rod 32 has a connecting rod 321 between it. In this configuration, the rotating rod 211 drives the cam 31 to rotate through the rotating shaft 3. When the cam 31 rotates, it pushes the overlapping rod 32 to move up and down, and then transmits mechanical power to the subsequent components through the connecting rod 321 to achieve linkage operation and provide power support for the unblocking structure.

[0029] Example 3:

[0030] The difference between the above embodiments and this embodiment is that: Figures 1 to 2 and Figures 4 to 9 As shown, a water quality treatment system for a water conservancy project includes two U-shaped guide plates 33 on both sides of the stain collection component 17. A connecting rod 321 is slidably inserted through the middle of each U-shaped guide plate 33. The U-shaped guide plates 33 limit and guide the movement trajectory of the connecting rod 321, ensuring that the connecting rod 321 moves stably in the vertical direction, avoiding deviation during movement, and ensuring the accuracy of power transmission.

[0031] like Figures 1 to 2 and Figures 4 to 10As shown, in a specific embodiment, each of the two fixed blocks 34 is provided with a placement rod 341 above it. Swing arms 35 are provided on opposite side walls above the two placement rods 341. The two swing arms 35 are symmetrical to each other, and a driving block 351 is provided at the end of each swing arm 35 away from the placement rod 341. In this configuration, the fixed blocks 34 fix the placement rods 341, and the placement rods 341 provide mounting support for the swing arms 35, allowing the swing arms 35 to drive the driving blocks 351 to swing flexibly under the action of power, realizing the direction transmission of power and providing driving force for the movement of the drive plate 352.

[0032] like Figures 1 to 2 and Figures 4 to 10 As shown, the two drive blocks 351 are symmetrical to each other and movably pass through the mounting housing 15. A drive plate 352 is provided at one end of each drive block 351. In this configuration, the drive blocks 351 pass through the mounting housing 15 and drive the drive plate 352 to move. Through the reciprocating motion of the drive plate 352 within the mounting housing 15 and the connecting pipe 16, the attached dirt and sand are effectively removed, preventing blockage of the mounting housing 15 and the connecting pipe 16, and ensuring unobstructed fluid flow.

[0033] The implementation principle of the water quality treatment system for water conservancy projects according to the present invention is as follows: First, when the sewage enters the bar screen room through the main pump room and is then transported to the aerated grit chamber 1, the staff can control the operation of the aeration component 18 to aerate the bottom of the aerated grit chamber 1. At the same time, the staff also need to control the cable tray 13 to move horizontally with the assistance of the electric slide rail and guide rod 124 in the sliding groove 12. This allows the cable tray 13 to drive the installation pipe 14, installation shell 15, connecting pipe 16 and stain collection component 17 to move horizontally. Simultaneously, controlling the operation of the stain collection component 17 can lift the sand and gravel in the aerated water and the sand and gravel deposited at the bottom of the aerated grit chamber 1, which can then be sucked up by the stain collection component 17. Meanwhile, when the stain collection component 17 moves, it can move horizontally through the rectangular shell 22 and the sliding plate 23, so that the sliding plate 23 can push the sand and gravel in a large area at the bottom of the aerated grit chamber 1, thereby loosening the sand and gravel and accelerating the efficiency of sand and gravel lifting. Meanwhile, when the stain collection component 17 moves, it can move horizontally through the rectangular shell 22 and the sliding plate 23, thus driving the moving wheel 24 to move horizontally (wherein the moving wheel 24 can always be in contact with the bottom of the inner cavity of the aerated grit chamber 1 under the action of gravity). When the moving wheel 24 moves, it can rotate with the assistance of the rotating rod 241. When the rotating rod 241 rotates, it can drive the stirring blade 242 to rotate, thereby breaking up and stirring the sand and gravel raised by aeration. When the cable tray 13 moves the stain collection component 17 closer to the inner wall of the aerated grit chamber body 1, the cable tray 13 continues to move, allowing the sliding plate 23 to fit against the inner wall of the aerated grit chamber body 1. Continuing to move the cable tray 13 allows the sliding plate 23 to rotate with the assistance of the rectangular housing 22, the rotating rod 211, and the mounting bearing 21. Simultaneously, the sliding plate 23 can move into the rectangular housing 22. When the rotating rod 211 rotates, it drives the cam 31 to rotate. The rotation of the cam 31 drives the overlapping rod 32 placed above to move, allowing the overlapping rod 32 to drive the connecting rod 321 back to its original position. With the assistance of the guide plate 33, it can move vertically. When the connecting rod 321 moves, it can drive the placement rod 341 to move through the fixing block 34. When the placement rod 341 moves, it can drive the swing arm 35 to move, so that the swing arm 35 can drive the drive plate 352 to move. Therefore, the drive plate 352 can drive the installation housing 15 and the connecting pipe 16 to move. Thus, the drive plate 352 can unclog the installation housing 15 and the connecting pipe 16, thereby breaking up the clumps of dirt, and thus preventing the installation housing 15 and the connecting pipe 16 from becoming blocked to a certain extent.

[0034] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A water quality treatment system for a water conservancy project, comprising an aerated grit chamber body (1), characterized in that: Two collection shells (11) are placed on top of the aerated grit chamber body (1). The inner cavity of the two collection shells (11) is also provided with sliding grooves (12), and rectangular slots (121) are opened at both ends of the sliding grooves (12). A bridge frame (13) is slidably arranged in the inner cavity of the two sliding grooves (12). Two installation pipes (14) are arranged on the bridge frame (13). One end of the two installation pipes (14) is located on the collection shell (11), and the other end is provided with an installation shell (15). A connecting pipe (16) is provided through the bottom of the two installation shells (15). A stain collection component (17) is provided at the other end of the two connecting pipes (16). Two drive plates (352) are provided in the inner cavity of the installation shells (15) and the connecting pipes (16), and the drive plates (352) are used to unclog the inner cavity of the installation shells (15) and the connecting pipes (16). The stain collection component (17) is provided with rectangular shells (22) on both sides. Sliding plates (23) are inserted into the opposite side walls of the two rectangular shells (22). The sliding plates (23) are provided with mounting slots (231). The two sliding plates (23) are used to push the sand and gravel deposited at the bottom of the inner cavity of the aerated grit chamber (1). The two mounting slots (231) are provided with stirring blades (242), which are used to disturb the pushed sand and gravel. The two sliding plates (23) are provided with moving wheels (24) on both side walls. The aeration component (18) is provided at the bottom of the aerated grit chamber (1).

2. The water quality treatment system for water conservancy projects according to claim 1, characterized in that, Two connectors (122) are provided on both sides of the two collection shells (11). Each connector (122) is symmetrical to each other. Each connector (122) has a connecting plate (123) between each pair of ends away from the collection shell (11). Each connecting plate (123) is symmetrical to each other. Each connecting plate (123) has a guide rod (124) between each pair of ends. Each guide rod (124) passes through the rectangular slot (121) and the sliding groove (12). Each guide rod (124) is symmetrical to each other.

3. The water quality treatment system for water conservancy projects according to claim 1, characterized in that, The stain collection component (17) has placement slots (171) on both sides of its side walls. The two placement slots (171) are symmetrical to each other. The two sides of the inner cavity of the two placement slots (171) are provided with protective cylinders (2). Each protective cylinder (2) is symmetrical to each other. A rectangular shell (22) is provided between each pair of protective cylinders (2).

4. A water quality treatment system for water conservancy projects according to claim 3, characterized in that, Each of the protective cylinders (2) is also provided with a mounting bearing (21) in its inner cavity. Each mounting bearing (21) is respectively provided on the opposite two side walls of the inner cavity of the stain collection assembly (17). Each mounting bearing (21) is provided with a rotating rod (211). Each rotating rod (211) is symmetrical to each other. The other end of each rotating rod (211) is provided on the rectangular housing (22). Each rotating rod (211) is provided with a torsion spring (212). The two ends of each torsion spring (212) are respectively provided on the opposite two side walls of the mounting bearing (21) and the rectangular housing (22).

5. A water quality treatment system for water conservancy projects according to claim 3, characterized in that, Two return springs (222) are provided in the inner cavity of the two rectangular housings (22). The other end of each return spring (222) is respectively provided on the sliding plate (23). The two opposite side walls of each sliding plate (23) are respectively provided with sliding slots (232) through the two side walls of the mounting slot (231).

6. A water quality treatment system for water conservancy projects according to claim 5, characterized in that, Each sliding groove (232) has a sliding rail (233) on each of its two opposite side walls. Each sliding rail (233) is symmetrical to each other. Each sliding rail (233) has a sliding block (234) slidably mounted on it. Each sliding block (234) is symmetrical to each other. Each sliding block (234) has a rotating rod (241) between each pair of sliding blocks (234). Each rotating rod (241) has a moving wheel (24) at both ends. Each moving wheel (24) is symmetrical to each other. Each rotating rod (241) is connected to an agitator (242) at the mounting groove (231).

7. A water quality treatment system for water conservancy projects according to claim 4, characterized in that, Each of the rotating rods (211) has a rotating shaft (3) at one of its opposite ends, and the rotating shaft (3) moves through the stain collection assembly (17). Each of the rotating shafts (3) has a cam (31) at one of its opposite ends, and each of the cams (31) is symmetrical to each other. Each of the cams (31) has an overlapping rod (32) above each of its opposite ends, and each of the overlapping rods (32) has a connecting rod (321) between each of its opposite ends.

8. A water quality treatment system for water conservancy projects according to claim 1, characterized in that, The stain collection assembly (17) is also provided with two spiral guide plates (33) on both sides, and a connecting rod (321) is slidably provided through the middle of each spiral guide plate (33).

9. A water quality treatment system for water conservancy projects according to claim 6, characterized in that, Each of the two fixed blocks (34) is provided with a placement rod (341), and a swing arm (35) is provided on the opposite side walls above the two placement rods (341). The two swing arms (35) are symmetrical to each other, and a drive block (351) is provided at the end of each swing arm (35) away from the placement rod (341).

10. A water quality treatment system for water conservancy projects according to claim 9, characterized in that, The two drive blocks (351) are symmetrical to each other and the two drive blocks (351) are movable through the mounting housing (15). A drive plate (352) is provided at one end of the two drive blocks (351) opposite to each other.