River water pollution treatment device and treatment method

By setting up a treatment chamber and a stirring structure in the river channel, the problem that existing devices cannot effectively treat water pollution has been solved, and efficient purification of river water and removal of floating debris have been achieved.

CN121020680BActive Publication Date: 2026-06-02FUZHOU PLANNING DESIGN & RES INST

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
FUZHOU PLANNING DESIGN & RES INST
Filing Date
2025-09-12
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing water pollution treatment devices can only remove floating debris from rivers and cannot further treat the water, resulting in poor water pollution treatment effects.

Method used

A treatment chamber is set up in the river channel. Floating debris is intercepted by a water-receiving plate, and a stirring structure is used to mix the chemicals with the river water. Combined with a conveyor belt to remove debris and a sealing structure to control the water flow, the river water is purified.

Benefits of technology

It improved the effectiveness and efficiency of water treatment, achieved effective purification of river water, reduced labor intensity, and increased treatment efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a river water pollution treatment device and method, belonging to the field of water conservancy engineering technology. The river water pollution treatment device includes a treatment chamber fixed to the side bank of a river. A baffle is installed on one side of the treatment chamber and fixed to the other side bank. A water-facing plate, gradually sloping from the riverbank towards the baffle and towards the backwater direction, is provided on the water-facing side of the treatment chamber. An inlet hole is provided on the water-facing plate. A drain hole is provided on the backwater plate of the treatment chamber. A chemical addition structure is provided at the top of the treatment chamber. A stirring structure for agitating the chemical is provided inside the treatment chamber. A sealing structure for blocking the drain hole is provided on the outer surface of the backwater plate. A cleaning structure for cleaning the inner surface of the backwater plate is provided inside the treatment chamber. A retrieval structure is provided at the baffle. Using the river water pollution treatment device and method described in this invention can solve the problem of poor water treatment effect of existing water pollution treatment devices.
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Description

Technical Field

[0001] This invention relates to the field of water conservancy engineering technology, and in particular to a river water pollution treatment device and treatment method. Background Technology

[0002] With the rapid development of urbanization, industrialization, and agricultural modernization, river water pollution has become increasingly serious. The main sources of pollution include industrial wastewater, domestic sewage, agricultural non-point source pollution, and endogenous pollution. Pollution damages aquatic ecosystems, leading to a sharp decline in biodiversity. Traditional water treatment methods rely on manual removal, which can only handle floating debris in the river, and is labor-intensive and inefficient.

[0003] Existing patent CN202411525772.7 discloses a water pollution treatment mechanism, including a floating mechanism, a self-driven mechanism, a garbage retrieval mechanism, and a garbage transfer mechanism. The floating mechanism is fixed in the river channel. Through the self-driven mechanism in conjunction with the floating mechanism, the flowing water impacts the drive impeller, providing power to the garbage retrieval and transfer mechanisms. This enables the retrieval and transfer of floating garbage without requiring other power-driven equipment, making it more energy-efficient and environmentally friendly. Furthermore, the garbage transfer mechanism can transfer the retrieved garbage to the shore in real time, preventing garbage accumulation on the floating mechanism and avoiding excessive sinking of the entire mechanism, while also facilitating garbage cleanup. While the aforementioned patent can achieve automatic garbage retrieval, it can only retrieve garbage and cannot further treat the water in the river channel, resulting in a relatively poor water pollution treatment effect. Summary of the Invention

[0004] The purpose of this invention is to provide a river water pollution treatment device and method to solve the problem that existing water pollution treatment devices have poor water treatment effects.

[0005] To achieve the above objectives, the present invention provides a river water pollution treatment device, including a treatment chamber fixed on the side bank of a river. A baffle is provided on one side of the treatment chamber and fixed on the other side bank of the river. A water-facing plate is provided on the water-facing surface of the treatment chamber, which gradually slopes from the riverbank towards the baffle towards the back water direction. A water inlet hole is provided on the water-facing plate to allow water to enter the treatment chamber. A drain hole is provided on the back water plate of the treatment chamber. A chemical addition structure is provided at the top of the treatment chamber. A stirring structure for stirring the chemical is provided inside the treatment chamber. A sealing structure for sealing the drain hole is provided on the outer surface of the back water plate. A cleaning structure for cleaning the inner surface of the back water plate is provided inside the treatment chamber. A retrieval structure is provided on the water-facing surface of the baffle.

[0006] Preferably, the agent addition structure includes a mounting shaft located above the processing chamber, a plurality of mounting brackets are provided on the mounting shaft, and nozzles are fixed on the mounting brackets. The nozzles are connected to an external medicine tank, and a power structure is provided outside the processing chamber to drive the mounting shaft to swing and drive the stirring structure to rotate.

[0007] Preferably, the stirring structure includes a first stirring shaft and a second stirring shaft, both of which are rotatably connected to the processing chamber. A plurality of stirring rods for mixing water and chemicals are evenly arranged on the first and second stirring shafts. The first and second stirring shafts are connected to a power structure.

[0008] Preferably, the power structure includes a third motor, an output shaft of which is provided with a drive wheel, which is connected to a pulley on the first stirring shaft via a first transmission belt, and another pulley on the first stirring shaft is connected to a pulley on the second stirring shaft via a second transmission belt; an eccentric rod is provided at the end of the output shaft of the third motor, and a swing plate is provided at the end of the mounting shaft, with a sliding hole provided on the swing plate, the eccentric rod being located in the sliding hole and sliding along the sliding hole, and the third motor driving the swing plate to swing back and forth through the eccentric rod and the sliding hole.

[0009] Preferably, the sealing structure includes a sliding plate located on the outer surface of the backwater plate. The backwater plate has limiting grooves on both sides that guide the sliding plate's up-and-down sliding. The sliding plate has water passage holes that correspond one-to-one with the drainage holes. A fixed seat is provided at the top of the treatment chamber. A first suspension rope is provided on the fixed seat to drive the sliding plate up and down. A motor is provided on the fixed seat to drive the rope drum wound with the first suspension rope to rotate. The motor drives the sliding plate to slide through the first suspension rope, thereby opening or closing the drainage holes.

[0010] Preferably, the cleaning structure includes guide plates fixed to the side wall of the treatment chamber. A scraper is disposed between the two guide plates, with one side of the scraper contacting the inner surface of the backwater plate. Pins are provided at both ends of the scraper. A first guide groove is provided on the guide plate for inserting the pins. A second guide groove is provided at the top of the first guide groove, tilting upward and outward. The pins are located in the first guide groove and slide along the first and second guide grooves. A lifting seat is disposed between the scraper and the guide plates. A guide rail is provided on the guide plate to guide the lifting of the lifting seat. A horizontal sliding groove is provided on the lifting seat, with the pins located in the sliding groove and sliding along the groove. A cylinder that drives the scraper to rotate is hinged to the lifting seat. The piston rod of the cylinder is hinged to a connecting seat fixedly disposed on the scraper. A second lifting rope that drives the lifting seat to rise and fall is disposed on the fixed seat. A motor that drives the rope drum wound with the second lifting rope to rotate is disposed on the fixed seat. A collection trough for collecting contaminants is disposed at the top of the treatment chamber.

[0011] Preferably, the salvage structure includes a conveyor belt, a drive shaft that drives the conveyor belt to rotate is rotatably mounted at the bottom of the baffle, a second motor that drives the drive shaft to rotate is mounted on the baffle, a driven shaft that supports the conveyor belt is mounted at the top of the baffle, a number of cleaning plates that clean up debris are mounted on the conveyor belt, and the cleaning plates have through holes that facilitate the outflow of river water. The conveyor belt transports the debris to a collection box set up on the bank.

[0012] Preferably, the water-receiving plate is provided with a conveying structure for conveying debris on the outer surface of the water-receiving plate. The conveying structure includes a slide block, which is connected to a lead screw drive. The lead screw is rotatably mounted on a mounting base, which is fixed to the top of the water-receiving plate. The mounting base is provided with a slide rail that limits the sliding of the slide block. A vertical first rotating shaft is rotatably mounted on the slide block. Several vertical actuating plates are mounted on the first rotating shaft. The actuating plates contact the outer surface of the water-receiving plate. A first gear is mounted at the top of the first rotating shaft, and the first gear meshes with a first rack mounted on the side wall of the mounting base.

[0013] Preferably, the mounting base is provided with a mixing structure for mixing water and medicine near the inner surface of the water-receiving plate. The mixing structure includes a vertical second rotating shaft, which is rotatably connected to the mounting base. The second rotating shaft is provided with a plurality of stirring blades, and a second gear is provided at the top of the second rotating shaft. The second gear meshes with a second rack provided on the other side wall of the mounting base.

[0014] The treatment method based on the above-mentioned river water pollution treatment device includes the following steps:

[0015] S1. During the water flow, debris is blocked by the water-receiving plate and accumulates on the outer surface of the water-receiving plate. The first motor is started, which drives the lead screw to rotate. The lead screw drives the slide block to slide along the lead screw. The slide block drives the first and second rotating shafts to move synchronously. The first rotating shaft rotates under the action of the first gear and the first rack, which drives the agitator plate to rotate. The agitator plate picks up the debris accumulated on the water-receiving plate. The debris moves towards the baffle under the action of the water flow. The second rotating shaft rotates under the action of the second gear and the second rack, which drives the stirring blades to rotate. The stirring blades stir and mix the water and the agent in the treatment chamber.

[0016] S2. Start the third motor. The third motor drives the swing plate to swing through the eccentric rod and sliding hole. The swing plate drives the mounting shaft to rotate. The mounting shaft drives the nozzle to swing through the mounting bracket. The nozzle swings to add the agent into the treatment chamber. The third motor drives the first and second stirring shafts to rotate through the first and second transmission belts. The first and second stirring shafts stir the water and agent in the treatment chamber through the stirring rod. The water is purified in the treatment chamber.

[0017] S3. After water treatment is completed, the slide plate is driven by the first suspension rope to slide, and the water passage hole on the slide plate is aligned with the drain hole, and the water in the treatment chamber is discharged through the drain hole.

[0018] S4. Start the second motor. The second motor drives the conveyor belt to rotate through the drive shaft. The conveyor belt picks up the debris gathered in front of the baffle through the cleaning plate and sends the picked-up debris into the collection box on the shore.

[0019] S5. When cleaning the backwater plate, the lifting seat is raised by the second hoisting rope, and the lifting seat drives the scraper to rise synchronously. The scraper scrapes off the contaminants adhering to the inner surface of the backwater plate. The pin on the scraper slides into the second guide groove along the first guide groove. The pin slides synchronously in the groove, and the scraper slides from the inner surface of the backwater plate to the top of the backwater plate. The cylinder is activated, the cylinder retracts, and the cylinder drives the scraper to rotate through the connecting seat. The contaminants hung on the scraper fall into the collection trough. The cylinder resets, the second hoisting rope is lowered, and the backwater plate is cleaned repeatedly.

[0020] The advantages and positive effects of the river water pollution treatment device and method described in this invention are as follows: This invention achieves the interception and removal of floating debris in the river by setting up a treatment chamber within the river channel. The water-receiving plate of the treatment chamber intercepts floating debris, which is then cleaned by a conveyor belt. River water enters the treatment chamber, where it undergoes chemical treatment, improving the water treatment effect. The stirring structure within the treatment chamber enhances the mixing effect of water and chemicals, further improving the efficiency and effectiveness of water treatment.

[0021] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the water-facing surface according to an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the backwater surface according to an embodiment of the present invention;

[0024] Figure 3 This is a top view of the structure according to an embodiment of the present invention;

[0025] Figure 4 This is a front view structural diagram of an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the cleaning structure according to an embodiment of the present invention;

[0027] Figure 6 This is a partial structural diagram of the cleaning structure according to an embodiment of the present invention.

[0028] Figure Labels

[0029] 1. Processing chamber; 2. Baffle; 3. Water inlet plate; 4. Water inlet hole; 5. Water outlet plate; 6. Drain hole; 7. Mounting base; 8. Lead screw; 9. Slide block; 10. First motor; 11. First rotating shaft; 12. Actuating plate; 13. First gear; 14. First rack; 15. Second rotating shaft; 16. Agitator blade; 17. Second gear; 18. Second rack; 19. Conveyor belt; 20. Cleaning plate; 21. Drive shaft; 22. Second motor; 23. First agitator shaft; 24. Second agitator... 25. Shaft; 26. Third motor; 27. First transmission belt; 28. Second transmission belt; 29. ​​Eccentric rod; 30. Swing plate; 31. Sliding hole; 32. Mounting shaft; 33. Mounting bracket; 34. Slide plate; 35. Water passage hole; 36. Limiting groove; 37. Fixed seat; 38. First lifting rope; 39. Second lifting rope; 40. Guide plate; 41. Scraper; 42. Lifting seat; 43. First guide groove; 44. Second guide groove; 45. Sliding groove; 46. Cylinder; 47. Connecting seat; 48. Collection trough. Detailed Implementation

[0030] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0031] In this application, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. In case of any inconsistency, the meaning set forth in this specification or derived from the content described herein shall prevail. Furthermore, the terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit the scope of this application.

[0032] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, a river water pollution treatment device includes a treatment chamber 1, which is fixed to the side bank of a river. A baffle 2 is installed on one side of the treatment chamber 1 and fixed to the other side bank of the river. The treatment chamber 1 and the baffle 2 span the width of the river. A water-facing plate 3 is provided on the water-facing side of the treatment chamber 1, which gradually slopes from the riverbank towards the baffle 2 towards the back water direction. The water-facing plate 3 has inlet holes 4 for allowing water to enter the treatment chamber 1. The water-facing plate 3 intercepts large debris and garbage in the river. A drain hole 6 is provided on the back water plate 5 of the treatment chamber 1, through which the treated water in the treatment chamber 1 returns to the river. A chemical addition structure is provided at the top of the treatment chamber 1 for adding flocculants and other water treatment chemicals to the treatment chamber 1 to treat the water. A stirring structure is provided inside the treatment chamber 1 to agitate the chemicals. The outer surface of the backwater plate 5 is provided with a sealing structure to block the drain hole 6, ensuring the water treatment time in the treatment chamber 1 and improving the water treatment effect. The interior of the treatment chamber 1 is provided with a cleaning structure to clean the inner surface of the backwater plate 5. The water-facing side of the baffle 2 is provided with a retrieval structure to retrieve garbage and debris.

[0034] The reagent addition structure includes a mounting shaft 31, which is rotatably positioned above the processing chamber 1. Several mounting brackets 32 are fixedly mounted on the mounting shaft 31, and nozzles are fixed on the mounting brackets 32. The nozzles are connected to an external reagent tank. The reagent is sprayed into the processing chamber 1 through the nozzles. An external power structure is provided for the processing chamber 1 to drive the mounting shaft 31 to swing and to rotate the stirring structure.

[0035] The stirring structure includes a first stirring shaft 23 and a second stirring shaft 24, both of which are rotatably connected to the processing chamber 1 via bearing seals. Several stirring rods for mixing water and chemicals are evenly arranged on the first stirring shaft 23 and the second stirring shaft 24. The first stirring shaft 23 and the second stirring shaft 24 are connected to a power structure.

[0036] The power structure includes a third motor 25. A drive wheel is fixedly mounted on the output shaft of the third motor 25, and the drive wheel is connected to a pulley fixedly mounted on the first stirring shaft 23 via a first transmission belt 26. Another pulley fixedly mounted on the first stirring shaft 23 is connected to a pulley fixedly mounted on the second stirring shaft 24 via a second transmission belt 27. The third motor 25 drives the first stirring shaft 23 and the second stirring shaft 24 to rotate via the first transmission belt 26 and the second transmission belt 27. An eccentric rod 28 is fixedly mounted on the end of the output shaft of the third motor 25, and a swing plate 29 is fixedly mounted on the end of the mounting shaft 31. The swing plate 29 has a sliding hole 30, and the eccentric rod 28 is located in the sliding hole 30 and slides along the sliding hole 30. The third motor 25 drives the swing plate 29 to swing back and forth via the eccentric rod 28 and the sliding hole 30. The swing plate 29 drives the nozzle to swing and spray the agent into the treatment chamber 1, improving the uniformity of the agent spraying.

[0037] The sealing structure includes a sliding plate 33, which is located on the outer surface of the backwater plate 5. Limiting grooves 35, which guide the up-and-down sliding of the sliding plate 33, are fixedly provided on both sides of the backwater plate 5. The sliding plate 33 is provided with water passage holes 34 corresponding one-to-one with the drain holes 6. When the water passage holes 34 correspond one-to-one with the drain holes 6, water flow is ensured; when the drain holes 6 and water passage holes 34 are misaligned, the drain holes 6 are blocked. A fixed base 36 is fixedly provided at the top of the treatment chamber 1. A first lifting rope 37, which drives the sliding plate 33 to slide up and down, is provided on the fixed base 36. A motor, which drives the rope drum wound with the first lifting rope 37, is provided on the fixed base 36. The motor drives the rope drum to rotate, realizing the raising and lowering of the first lifting rope 37, thereby achieving the lifting and lowering of the sliding plate 33.

[0038] like Figure 5 , Figure 6 As shown, the cleaning structure includes guide plates 39, which are fixed to the side wall of the treatment chamber 1. A scraper 40 is disposed between the two guide plates 39, with one side of the scraper 40 contacting the inner surface of the backwater plate 5. Pins are fixedly disposed at both ends of the scraper 40, and a first guide groove 42 is provided on the guide plate 39 for inserting the pins. A second guide groove 43 is provided at the top of the first guide groove 42, which is inclined upward and outward. The pin is located in the first guide groove 42 and slides along the first guide groove 42 and the second guide groove 43. A lifting seat 41 is disposed between the scraper 40 and the guide plates 39. A guide rail is fixedly disposed on the guide plate 39 to guide the lifting of the lifting seat 41. A groove is provided on the lifting seat 41 that matches the guide rail, and the guide rail is located in the groove and slidably connected to the groove. A horizontal sliding groove 44 is provided on the lifting seat 41, and the pin is located in the sliding groove 44 and slides along the sliding groove 44. A cylinder 45, which drives the scraper 40 to rotate, is hinged to the lifting seat 41. The piston rod of the cylinder 45 is hinged to a connecting seat 46 fixedly mounted on the scraper 40. A second lifting rope 38, which drives the lifting seat 41 to rise and fall, is mounted on the fixed seat 36. A motor, which drives the rope drum wound with the second lifting rope 38, is also mounted on the fixed seat 36. The motor drives the rope drum to rotate, thereby driving the second lifting rope 38 to wind up and down, realizing the raising and lowering of the lifting seat 41. This, in turn, drives the scraper 40 to clean the contaminants adhering to the inner surface of the backwater plate 5, ensuring the water permeability of the backwater plate 5. A collection trough 47 for collecting contaminants is provided at the top of the treatment chamber 1. The contaminants scraped by the scraper 40 are collected in the collection trough 47.

[0039] The salvage structure includes a conveyor belt 19. A drive shaft 21, which rotates the conveyor belt 19, is rotatably mounted on the bottom of a baffle 2 via bearings. A second motor 22, which drives the drive shaft 21, is mounted on the baffle 2. A driven shaft, which supports the conveyor belt 19, is mounted on the top of the baffle 2. Several cleaning plates 20 are mounted on the conveyor belt 19 to remove debris. Each cleaning plate 20 has through holes to facilitate the outflow of river water. The conveyor belt 19 transports the debris to a collection box located on the riverbank.

[0040] The processing chamber 1 is provided with a protective cover to protect the second motor 22 and the power structure.

[0041] A conveying structure is provided on the water-receiving plate 3 to transport debris from its outer surface. The conveying structure includes a slide 9, which is connected to a lead screw 8 via a threaded connection. The lead screw 8 is rotatably mounted on a mounting base 7 via a bearing seat, and the mounting base 7 is fixed to the top of the water-receiving plate 3. A slide rail is fixedly mounted on the mounting base 7 to limit the sliding of the slide 9. A vertical first rotating shaft 11 is rotatably mounted on the slide 9 via a bearing. Several vertical actuating plates 12 are fixedly mounted on the first rotating shaft 11, and the actuating plates 12 contact the outer surface of the water-receiving plate 3. A first gear 13 is fixedly mounted at the top of the first rotating shaft 11, and the first gear 13 meshes with a first rack 14 fixedly mounted on the side wall of the mounting base 7. During rotation, the actuating plates 12 push the debris attached to the water-receiving plate 3 outwards, causing the debris to move towards the baffle 2 under the action of water flow, ensuring the smooth flow of water through the water-receiving plate 3.

[0042] The mounting base 7 is equipped with a mixing structure for mixing water and chemicals near the inner surface of the water-receiving plate 3. The mixing structure includes a vertical second rotating shaft 15, which is rotatably connected to the mounting base 7 via bearings. Several stirring blades 16 are fixedly mounted on the second rotating shaft 15, and a second gear 17 is fixedly mounted at the top of the second rotating shaft 15. The second gear 17 meshes with a second rack 18 fixedly mounted on the other side wall of the mounting base 7. The stirring blades 16 mix the water and chemicals near the water-receiving plate 3, improving the mixing effect.

[0043] The treatment method based on the above-mentioned river water pollution treatment device includes the following steps:

[0044] S1. During the water flow, debris is blocked by the water-receiving plate 3 and accumulates on its outer surface. The first motor 10 is started, driving the lead screw 8 to rotate. The lead screw 8 drives the slide 9 to slide along the lead screw 8. The slide 9 drives the first rotating shaft 11 and the second rotating shaft 15 to move synchronously. The first rotating shaft 11 rotates under the action of the first gear 13 and the first rack 14, driving the agitator plate 12 to rotate. The agitator plate 12 picks up the debris accumulated on the water-receiving plate 3, and the debris moves towards the baffle 2 under the action of the water flow. The second rotating shaft 15 rotates under the action of the second gear 17 and the second rack 18, driving the stirring blades 16 to rotate. The stirring blades 16 stir and mix the water and chemicals in the treatment chamber 1.

[0045] S2. Start the third motor 25. The third motor 25 drives the swing plate 29 to swing via the eccentric rod 28 and the sliding hole 30. The swing plate 29 drives the mounting shaft 31 to rotate. The mounting shaft 31 drives the nozzle to swing via the mounting bracket 32. The nozzle swings to add the agent into the treatment chamber 1. The third motor 25 drives the first stirring shaft 23 and the second stirring shaft 24 to rotate via the first transmission belt 26 and the second transmission belt 27. The first stirring shaft 23 and the second stirring shaft 24 stir the water and agent in the treatment chamber 1 through the stirring rod. The water is purified in the treatment chamber 1.

[0046] S3. After water treatment is completed, the slide plate 33 is driven to slide by the first suspension rope 37. The water passage hole 34 on the slide plate 33 is aligned with the drain hole 6, and the water in the treatment chamber 1 is discharged through the drain hole 6.

[0047] S4. Start the second motor 22. The second motor 22 drives the conveyor belt 19 to rotate through the drive shaft 21. The conveyor belt 19 retrieves the debris gathered in front of the baffle 2 through the cleaning plate 20 and sends the retrieved debris into the collection box on the shore.

[0048] S5. When cleaning the backwater plate 5, the second hoisting rope 38 drives the lifting seat 41 to rise, and the lifting seat 41 drives the scraper 40 to rise synchronously. The scraper 40 scrapes off the contaminants adhering to the inner surface of the backwater plate 5. The pin on the scraper 40 slides along the first guide groove 42 into the second guide groove 43, and the pin slides synchronously in the sliding groove 44. The scraper 40 slides from the inner surface of the backwater plate 5 to above the backwater plate 5. The cylinder 45 is activated, and the cylinder 45 retracts. The cylinder 45 drives the scraper 40 to rotate through the connecting seat 46. The contaminants scraped by the scraper 40 fall into the collection trough 47. A screw conveyor can be installed in the collection trough 47 to transport the contaminants in the collection trough 47 to the shore. The second hoisting rope 38 is lowered, and the scraper 40 slides downward under the action of gravity. The cylinder 45 resets, and the backwater plate 5 is cleaned repeatedly.

[0049] Therefore, the river water pollution treatment device and method described in this invention can solve the problem that existing water pollution treatment devices have poor water treatment effects.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A river water pollution treatment device, characterized by comprising: The system includes a treatment chamber fixed on the side bank of a river. A baffle is installed on one side of the treatment chamber and fixed on the other side of the river. The water-facing side of the treatment chamber has a water-facing plate that gradually slopes from the riverbank towards the baffle towards the back water direction. The water-facing plate has an inlet hole for water to enter the treatment chamber. The back water plate of the treatment chamber has a drain hole. The top of the treatment chamber has a chemical addition structure. The interior of the treatment chamber has a stirring structure for stirring the chemicals. The outer surface of the back water plate has a sealing structure for sealing the drain hole. The interior of the treatment chamber has a cleaning structure for cleaning the inner surface of the back water plate. The water-facing side of the baffle has a salvage structure. The drug addition structure includes a mounting shaft located above the processing chamber. Several mounting brackets are provided on the mounting shaft, and nozzles are fixed on the mounting brackets. The nozzles are connected to an external medicine tank. A power structure is provided outside the processing chamber to drive the mounting shaft to swing and drive the stirring structure to rotate. The stirring structure includes a first stirring shaft and a second stirring shaft, both of which are rotatably connected to the processing chamber. Several stirring rods for mixing water and chemicals are evenly arranged on the first and second stirring shafts. The first and second stirring shafts are connected to the power structure. The power structure includes a third motor, on the output shaft of which a drive wheel is mounted. The drive wheel is connected to a pulley on the first stirring shaft via a first transmission belt. Another pulley on the first stirring shaft is connected to a pulley on the second stirring shaft via a second transmission belt. An eccentric rod is mounted on the end of the output shaft of the third motor, and a swing plate is mounted on the end of the mounting shaft. A sliding hole is provided on the swing plate, and the eccentric rod is located in the sliding hole and slides along the sliding hole. The third motor drives the swing plate to swing back and forth through the eccentric rod and the sliding hole. The sealing structure includes a sliding plate located on the outer surface of the backwater plate. Limiting grooves that guide the sliding plate's up-and-down sliding are provided on both sides of the backwater plate. Water passage holes corresponding to the drainage holes are provided on the sliding plate. A fixed seat is provided at the top of the treatment chamber. A first suspension rope that drives the sliding plate to slide up and down is provided on the fixed seat. A motor that drives the rope drum wound with the first suspension rope to rotate is provided on the fixed seat. The motor drives the sliding plate to slide through the first suspension rope, thereby opening or closing the drainage holes.

2. The device for treating water pollution in a river according to claim 1, characterized in that: The cleaning structure includes guide plates fixed to the side wall of the treatment chamber. A scraper is disposed between two guide plates, with one side of the scraper contacting the inner surface of the backwater plate. Pins are provided at both ends of the scraper. A first guide groove is provided on the guide plate for inserting the pins. A second guide groove is provided at the top of the first guide groove, tilting upward and outward. The pins are located in the first guide groove and slide along the first and second guide grooves. A lifting seat is disposed between the scraper and the guide plates. A guide rail is provided on the guide plate to guide the lifting of the lifting seat. A horizontal sliding groove is provided on the lifting seat, with the pins located in the sliding groove and sliding along the groove. A cylinder that drives the scraper to rotate is hinged to the lifting seat. The piston rod of the cylinder is hinged to a connecting seat fixed on the scraper. A second lifting rope that drives the lifting seat to rise and fall is disposed on the fixed seat. A motor that drives the rope drum wound with the second lifting rope to rotate is disposed on the fixed seat. A collection trough for collecting contaminants is disposed at the top of the treatment chamber.

3. The device for treating water pollution in a river according to claim 2, characterized in that: The salvage structure includes a conveyor belt, a drive shaft that rotates at the bottom of the baffle to drive the conveyor belt, a second motor that drives the drive shaft to rotate on the baffle, a driven shaft that supports the conveyor belt at the top of the baffle, several cleaning plates that clean debris on the conveyor belt, and through holes that facilitate the outflow of river water on the cleaning plates. The conveyor belt transports the debris to a collection box set on the bank.

4. The device for treating water pollution in a river according to claim 3, characterized in that: The water-receiving plate is equipped with a conveying structure for conveying debris from its outer surface. The conveying structure includes a slide block connected to a lead screw drive. The lead screw is rotatably mounted on a mounting base, which is fixed to the top of the water-receiving plate. The mounting base is equipped with a slide rail that limits the sliding of the slide block. A vertical first rotating shaft is rotatably mounted on the slide block. Several vertical actuating plates are mounted on the first rotating shaft. The actuating plates contact the outer surface of the water-receiving plate. A first gear is mounted at the top of the first rotating shaft, and the first gear meshes with a first rack mounted on the side wall of the mounting base.

5. The device for treating water pollution in a river according to claim 4, characterized in that: The mounting base is provided with a mixing structure for mixing water and medicine near the inner surface of the water-receiving plate. The mixing structure includes a vertical second rotating shaft, which is rotatably connected to the mounting base. The second rotating shaft is provided with several stirring blades, and a second gear is provided at the top of the second rotating shaft. The second gear meshes with a second rack provided on the other side wall of the mounting base.

6. A treatment method based on the river water pollution treatment apparatus according to claim 5, characterized by, Includes the following steps: S1. During the water flow, debris is blocked by the water-receiving plate and accumulates on the outer surface of the water-receiving plate. The first motor is started, which drives the lead screw to rotate. The lead screw drives the slide block to slide along the lead screw. The slide block drives the first and second rotating shafts to move synchronously. The first rotating shaft rotates under the action of the first gear and the first rack, which drives the agitator plate to rotate. The agitator plate picks up the debris accumulated on the water-receiving plate. The debris moves towards the baffle under the action of the water flow. The second rotating shaft rotates under the action of the second gear and the second rack, which drives the stirring blades to rotate. The stirring blades stir and mix the water and the agent in the treatment chamber. S2. Start the third motor. The third motor drives the swing plate to swing through the eccentric rod and sliding hole. The swing plate drives the mounting shaft to rotate. The mounting shaft drives the nozzle to swing through the mounting bracket. The nozzle swings to add the agent into the treatment chamber. The third motor drives the first and second stirring shafts to rotate through the first and second transmission belts. The first and second stirring shafts stir the water and agent in the treatment chamber through the stirring rod. The water is purified in the treatment chamber. S3. After water treatment is completed, the slide plate is driven by the first suspension rope to slide, and the water passage hole on the slide plate is aligned with the drain hole, and the water in the treatment chamber is discharged through the drain hole. S4. Start the second motor. The second motor drives the conveyor belt to rotate through the drive shaft. The conveyor belt picks up the debris gathered in front of the baffle through the cleaning plate and sends the picked-up debris into the collection box on the shore. S5. When cleaning the backwater plate, the lifting seat is raised by the second hoisting rope, and the lifting seat drives the scraper to rise synchronously. The scraper scrapes off the contaminants adhering to the inner surface of the backwater plate. The pin on the scraper slides into the second guide groove along the first guide groove. The pin slides synchronously in the groove, and the scraper slides from the inner surface of the backwater plate to the top of the backwater plate. The cylinder is activated, the cylinder retracts, and the cylinder drives the scraper to rotate through the connecting seat. The contaminants hung on the scraper fall into the collection trough. The cylinder resets, the second hoisting rope is lowered, and the backwater plate is cleaned repeatedly.