River and lake water turbidity reducing system based on flocculation and hydrocyclone separation

By using a flocculation-cyclone separation system and a turbidity sensor to control the flocculant dosage, the problems of low flocculant contact efficiency and excessive flocculant dosage in the flocculation device were solved, achieving efficient and environmentally friendly turbidity reduction in river and lake water treatment.

CN224147807UActive Publication Date: 2026-04-21POWERCHINA HUADONG ENG CORP LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
POWERCHINA HUADONG ENG CORP LTD
Filing Date
2025-03-21
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing flocculation devices have problems such as low flocculant contact efficiency, uneven floc growth, and excessive flocculant addition in river and lake water treatment. In particular, they can easily lead to waste of chemicals and secondary pollution in water bodies with high turbidity or algae.

Method used

A flocculation-cyclone separation system is adopted, in which flocculant is uniformly mixed with river and lake water through a stirring component, and the dosage of flocculant is controlled by a turbidity sensor. Combined with a cyclone separator, the flocculant is uniformly distributed and efficiently removed.

Benefits of technology

This method achieves uniform mixing and quantitative addition of flocculants, avoiding uneven floc growth and excessive flocculant addition, thus improving the efficiency and environmental friendliness of river and lake water treatment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a river and lake water turbidity descending system based on flocculation and hydrocyclone separation. The river and lake water turbidity descending system comprises a treatment pond and a stirring assembly, a groove is formed in the rear side of the interior of the treatment pond, a turbidity sensor is mounted in the groove, a water outlet is formed in the right side of the treatment pond, a water outlet pipe is fixed in the water outlet, the right end of the water outlet pipe is fixed in a water inlet of a transfer pump, and a cyclone separator is arranged at the right end of the transfer pump; a water outlet pipeline of the transfer pump is connected with a water inlet of the cyclone separator, a drum screen is arranged at the right end of the cyclone separator, a mud outlet pipeline of the cyclone separator is connected with a feeding port of the drum screen, a soil collecting pit is arranged at the right end of the drum screen, a discharging pipeline of the drum screen is connected with a feeding port of the soil collecting pit, and a discharging pipeline of the drum screen is connected with a discharging port of the soil collecting pit. Uneven floc growth is avoided, and excessive addition of a flocculating agent can be avoided.
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Description

Technical Field

[0001] This utility model relates to the field of turbidity reduction system technology, specifically a turbidity reduction system for river and lake water based on flocculation combined with cyclone separation. Background Technology

[0002] Turbidity reduction technology for rivers and lakes aims to improve water transparency and ecological stability by efficiently removing suspended solids, silt, and colloidal substances through physical, chemical, and biological-ecological synergistic methods. Existing technologies often employ flocculation processes, but traditional flocculation processes have several shortcomings in terms of control. Conventional flocculation devices typically use mechanical stirring or static mixing, resulting in low contact efficiency between flocculants and pollutants, leading to uneven floc growth. Furthermore, when dealing with high-turbidity or algae-containing waters, static mixing can easily lead to localized overdosing of flocculants. Overdosing not only wastes chemical resources but also causes secondary pollution. Therefore, we propose a turbidity reduction system for rivers and lakes based on flocculation combined with cyclone separation. Utility Model Content

[0003] The purpose of this invention is to provide a turbidity reduction system for river and lake water based on flocculation combined with cyclone separation, which can uniformly inject flocculant into river and lake water, avoid uneven floc growth, and prevent excessive flocculant addition, thus effectively solving the problems in the background technology.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a turbidity reduction system for river and lake water based on flocculation combined with cyclone separation, comprising a treatment tank and a stirring assembly;

[0005] Treatment tank: A groove is provided on the rear side of the interior, and a turbidity sensor is installed inside the groove. A water outlet is provided on the right side of the treatment tank, and a water outlet pipe is fixed inside the water outlet. The right end of the water outlet pipe is fixed in the water inlet of the pump. A hydrocyclone separator is provided on the right end of the pump. The water outlet pipe of the pump is connected to the water inlet of the hydrocyclone separator. A drum screen is provided on the right end of the hydrocyclone separator. The mud outlet pipe of the hydrocyclone separator is connected to the feed inlet of the drum screen. A soil collection pit is provided on the right end of the drum screen. The discharge pipe of the drum screen is connected to the feed inlet of the soil collection pit. A return pipe is fixed inside the discharge outlet of the soil collection pit. The left end of the return pipe is connected to the water outlet pipe. A drainage tank is provided on the rear side of the hydrocyclone separator. The water outlet of the hydrocyclone separator is connected to the water inlet of the drainage tank. A material injection assembly is installed on the front side of the treatment tank. A toggle assembly is installed on the rear side of the interior of the treatment tank. A rotating assembly is installed on the front side of the treatment tank.

[0006] The mixing assembly includes a fixed pipe, a guide pipe, a mixing pipe, and a brush slip ring. Two corresponding mounting holes are opened on the front side of the treatment tank. The fixed pipe is rotatably connected inside the mounting holes. A guide pipe is fixed to the rear end of the circumferential surface of the fixed pipe. Evenly distributed openings are formed on the circumferential surface of the guide pipe, and a mixing pipe is fixed inside each opening. A brush slip ring is installed at the front end of the circumferential surface of the fixed pipe. An adjustment assembly is installed on the circumferential surface of the guide pipe. A toggle assembly is installed inside the mixing pipe. The mixing assembly is used to mix river and lake water with flocculant.

[0007] Wherein: the input terminals of the material pump and the brush slip ring are both electrically connected to the output terminals of an external control switch group.

[0008] Furthermore, the adjustment component includes locking posts and connecting strips. The surface of the guide tube is provided with three corresponding connecting strips, and the side of the connecting strips is fixed with evenly distributed locking posts. The circumferential surface of the stirring tube is provided with connecting holes, and the locking posts are located inside the corresponding connecting holes. The water output of the guide tube is adjusted by setting the adjustment component.

[0009] Furthermore, the actuating assembly includes a fixed barrel, a first motor, a first gear, and a first gear ring. Two corresponding fixed barrels are fixed to the rear side inside the treatment pool. The rear end of the guide pipe is rotatably connected to the inside of the fixed barrel. The first motor is installed at the upper end of the circumferential surface of the fixed barrel. The first gear ring is fixed on the circumferential surface of the guide pipe. Three connecting strips corresponding to the first gear ring are fixed to the end face of the first gear ring. The first gear meshes with the first gear ring. The input end of the first motor is electrically connected to the output end of the brush slip ring. By setting the actuating assembly, all the locking pins are moved.

[0010] Furthermore, the injection assembly includes a connecting pipe, an injection pipe, an injection pump, and a feed pipe. The two fixed pipes are connected by the connecting pipe. The injection pipe is fixed to the lower end of the surface of the connecting pipe and communicates with the connecting pipe. An injection pump is installed on the front side of the treatment tank. The lower end of the injection pipe is fixed inside the outlet of the injection pump. The feed pipe is fixed inside the inlet of the injection pump. The input end of the injection pump is electrically connected to the output end of an external control switch group. By setting the injection assembly, flocculant is injected into the interior of the two fixed pipes.

[0011] Furthermore, the rotating assembly includes a second motor, a second gear, a sprocket ring, and a chain. The second motor is installed on the front side of the treatment tank, and a second gear is fixed on the output shaft of the second motor. A sprocket ring is fixed to the front end of the circumferential surface of the fixed tube. The two sprocket rings are connected by a chain. A second gear ring is fixed to the front end of the right sprocket ring. The second gear ring meshes with the second gear. The input end of the second motor is electrically connected to the output end of an external control switch group. The rotating assembly drives the two fixed tubes to rotate.

[0012] Furthermore, a connecting ring is fixed to the front end of the circumferential surface of the feed pipe, and the front end of the connecting ring is provided with evenly distributed mounting holes. The feed pipe is connected to the external flocculant storage tank by setting the connecting ring.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This river and lake water turbidity reduction system based on flocculation combined with cyclone separation has the following advantages:

[0014] 1. By setting up a rotating component, the two fixed pipes can be activated during use to rotate. The rotation of the two fixed pipes drives all the stirring pipes and all the feeding buckets to rotate. The rotation of all the feeding buckets drives all the stirring plates to rotate, stirring the river and lake water entering the treatment tank. During the stirring process, flocculant is injected into the two fixed pipes through the injection component. After injection, the flocculant will enter the two guide pipes through the two fixed pipes, and then enter the feeding buckets through the evenly distributed stirring pipes. After entering, it will be injected into the river and lake water through the evenly distributed feeding holes. In this way, the river and lake water and flocculant can be fully mixed, thereby effectively avoiding uneven floc growth.

[0015] 2. By setting up turbidity sensors to detect the turbidity of the river and lake water inside the treatment tank, the external PLC controller will automatically control two first motors to rotate two second gears based on the detection data. The rotation of the two second gears will drive two sprocket rings to rotate, which in turn will drive all the connecting bars to move. The movement of all the connecting bars will drive all the locking columns to move. In this way, the liquid output of all the stirring tubes can be adjusted, thus avoiding excessive addition of flocculant during turbidity reduction. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the front structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the injection assembly structure of this utility model;

[0018] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 This is a schematic diagram of the stirring assembly structure of this utility model.

[0020] In the diagram: 1. Treatment tank; 2. Mixing assembly; 21. Fixed pipe; 22. Guide pipe; 23. Mixing pipe; 24. Brush slip ring; 3. Feeding assembly; 31. Feeding bucket; 32. Feeding hole; 33. Mixing plate; 4. Adjusting assembly; 41. Locking column; 42. Connecting strip; 5. Actuating assembly; 51. Fixed bucket; 52. First motor; 53. First gear; 54. First gear ring; 6. Injection assembly; 61. Connecting pipe; 62. Injection pipe; 63. Injection pump; 64. Feed pipe; 7. Rotating assembly; 71. Second motor; 72. Second gear; 73. Sprocket ring; 74. Chain; 8. Connecting ring; 9. Water outlet pipe; 10. Pump; 11. Hydrocyclone separator; 12. Turbidity sensor; 13. Drainage tank; 14. Rotary drum screen; 15. Soil collection pit; 16. Return pipe. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 This embodiment provides a technical solution: a river and lake water turbidity reduction system based on flocculation combined with cyclone separation, including a treatment tank 1 and a stirring assembly 2;

[0023] Treatment tank 1: A groove is provided on the rear side of the interior, and a turbidity sensor 12 is installed inside the groove. An outlet is provided on the right side of treatment tank 1, and an outlet pipe 9 is fixed inside the outlet. The right end of the outlet pipe 9 is fixed in the inlet of a pump 10. A hydrocyclone separator 11 is provided at the right end of the pump 10. The outlet pipe of the pump 10 is connected to the inlet of the hydrocyclone separator 11. A drum screen 14 is provided at the right end of the hydrocyclone separator 11. The sludge outlet pipe of the hydrocyclone separator 11 is connected to the inlet of the drum screen 14. A drum screen 14 is provided at the right end. A soil collection pit 15 is provided, and the discharge pipe of the drum screen 14 is connected to the inlet of the soil collection pit 15. A return pipe 16 is fixed inside the discharge outlet of the soil collection pit 15, and the left end of the return pipe 16 is connected to the water outlet pipe 9. A drainage pool 13 is provided behind the hydrocyclone 11, and the water outlet of the hydrocyclone 11 is connected to the water inlet of the drainage pool 13. A material injection assembly 6 is installed on the front side of the treatment pool 1, a toggle assembly 5 is installed on the rear side inside the treatment pool 1, and a rotating assembly 7 is installed on the front side of the treatment pool 1. The material injection assembly 6 includes a connecting pipe 61, a material injection pipe 62, and a material injection pump. 63 and feed pipe 64, two fixed pipes 21 are connected by connecting pipe 61, the lower end of the surface of connecting pipe 61 is fixed with injection pipe 62, injection pipe 62 is connected to connecting pipe 61, injection pump 63 is installed on the front side of treatment tank 1, the lower end of injection pipe 62 is fixed inside the outlet of injection pump 63, feed pipe 64 is fixed inside the feed inlet of injection pump 63, input end of injection pump 63 is electrically connected to output end of external control switch group, rotating assembly 7 includes second motor 71, second gear 72, sprocket ring 73 and chain 74, treatment tank A second motor 71 is installed on the front side of the 1. A second gear 72 is fixed on the output shaft of the second motor 71. A sprocket ring 73 is fixed at the front end of the circumferential surface of the fixed tube 21. The two sprocket rings 73 are connected by a chain 74. A second gear ring is fixed at the front end of the right sprocket ring 73. The second gear ring meshes with the second gear 72. The input end of the second motor 71 is electrically connected to the output end of an external control switch group. The two fixed tubes 21 are rotated by setting a rotating component 7. The flocculant is injected into the interior of the two fixed tubes 21 by setting an injection component 6.

[0024] Stirring assembly 2 includes a fixed pipe 21, a guide pipe 22, a stirring pipe 23, and a brush slip ring 24. Two corresponding mounting holes are provided on the front side of the treatment tank 1. The fixed pipe 21 is rotatably connected inside the mounting holes. The guide pipe 22 is fixed to the rear end of the circumferential surface of the fixed pipe 21. Evenly distributed openings are provided on the circumferential surface of the guide pipe 22, and the stirring pipe 23 is fixed inside each opening. The brush slip ring 24 is installed at the front end of the circumferential surface of the fixed pipe 21. An adjusting assembly 4 is installed on the circumferential surface of the guide pipe 22. A toggle assembly 5 is installed inside the stirring pipe 23. The adjusting assembly 4 includes locking posts 41 and connecting strips 42. Three corresponding connecting strips 42 are provided on the surface of the guide pipe 22. Evenly distributed locking posts 41 are fixed to the sides of the connecting strips 42. A connecting hole is provided on the circumferential surface of the stirring pipe 23, and the locking posts 41 are located at their corresponding... Inside the connection hole, the actuating component 5 includes a fixed bucket 51, a first motor 52, a first gear 53, and a first gear ring 54. Two corresponding fixed buckets 51 are fixed on the rear side inside the treatment tank 1. The rear end of the guide pipe 22 is rotatably connected to the inside of the fixed bucket 51. The first motor 52 is installed on the upper end of the circumferential surface of the fixed bucket 51. The first gear ring 54 is fixed on the circumferential surface of the guide pipe 22. Three connecting strips 42 corresponding to the first gear ring 54 are fixed on the end face of the first gear ring 54. The first gear 53 meshes with the first gear ring 54. The input end of the first motor 52 is electrically connected to the output end of the brush slip ring 24. By setting the actuating component 5, all the locking pins 41 are moved. By setting the adjusting component 4, the water output of the guide pipe 23 is adjusted. By setting the stirring component 2, the river and lake water and flocculant are mixed.

[0025] The input terminals of the material pump 10 and the brush slip ring 24 are both electrically connected to the output terminals of an external control switch group.

[0026] Among them, a connecting ring 8 is fixed at the front end of the circumferential surface of the feed pipe 64, and the front end of the connecting ring 8 is provided with evenly distributed mounting holes. The feed pipe 64 is connected to the external flocculant storage tank by setting the connecting ring 8.

[0027] The working principle of the river and lake water turbidity reduction system based on flocculation combined with cyclone separation provided by this utility model is as follows: First, the feed pipe 64 is connected to the external flocculant storage tank. After connection, river and lake water is injected into the treatment tank 1. After injection, the second motor 71 is started, causing the second gear 72 to rotate. The rotation of the second gear 72 drives the right-side sprocket ring 73 to rotate, thereby causing the two sprocket rings 73 to rotate. The rotation of the two sprocket rings 73 drives the two fixed pipes 21 to rotate. The rotation of the two fixed pipes 21 drives the two guide pipes 22 to rotate. The rotation of the two guide pipes 22 drives all the stirring pipes 23 and all the feeding tanks 31. The rotation of all the feeding buckets 31 causes all the stirring plates 33 to rotate, stirring the river and lake water entering the treatment tank 1. During the stirring process, the injection pump 63 is activated to inject flocculant into the two fixed pipes 21 through the feed pipe 64. After injection, the flocculant will enter the two guide pipes 22 through the two fixed pipes 21, and then enter the feeding buckets 31 through the evenly distributed stirring pipes 23. After entering, it will be injected into the river and lake water through the evenly distributed feeding holes 32. In this way, the river and lake water and flocculant can be fully mixed, thereby effectively avoiding uneven floc growth. The turbidity of the river and lake water inside treatment tank 1 is detected. Based on the detection data, the external PLC controller automatically controls two first motors 71 to rotate two second gears 72. The rotation of the two second gears 72 drives the rotation of two sprocket rings 73, which in turn moves all the connecting bars 42. The movement of all the connecting bars 42 moves all the locking columns 41. In this way, the output flow of all the stirring tubes 23 can be adjusted. After adjustment, excessive flocculant addition can be avoided during turbidity reduction. After the flocculant is mixed with the river and lake water, it enters the hydrocyclone separator 1. Inside the treatment tank 1, the water enters the hydrocyclone separator 11 and undergoes hydrocyclone separation. The clarified water then enters the drainage tank 13 through the drainage pipe of the hydrocyclone separator 11, while the flocculated sludge enters the drum screen 14 through the sludge outlet pipe of the hydrocyclone separator 11. From there, it enters the collection pit 15. The sludge in the collection pit 15, along with the water in the treatment tank 1, re-enters the hydrocyclone separator 11 through the outlet pipe 9 for further treatment. This process effectively reduces turbidity in river and lake water and recycles the treated sludge, achieving efficient and environmentally friendly results.

[0028] It is worth noting that the external PLC controller disclosed in the above embodiments is specifically a Siemens S7-200. The brush slip ring 24, the first motor 52, the second motor 71, the injection pump 63, the extraction pump 10, and the turbidity sensor 12 can be freely configured according to the actual application scenario. The external PLC controller controls the operation of the first motor 52, the second motor 71, the injection pump 63, and the extraction pump 10 using methods commonly used in the prior art.

[0029] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A turbidity reduction system for river and lake water based on flocculation combined with cyclone separation, characterized in that it comprises: It includes a treatment tank (1) and a stirring assembly (2); Treatment tank (1): A groove is provided on the rear side inside the tank. A turbidity sensor (12) is installed inside the groove. An outlet is provided on the right side of the treatment tank (1). An outlet pipe (9) is fixed inside the outlet. The right end of the outlet pipe (9) is fixed in the inlet of the pump (10). A hydrocyclone separator (11) is provided on the right end of the pump (10). The outlet pipe of the pump (10) is connected to the inlet of the hydrocyclone separator (11). A drum screen (14) is provided on the right end of the hydrocyclone separator (11). The mud outlet pipe of the hydrocyclone separator (11) is connected to the inlet of the drum screen (14). A soil collection pit (15) is provided at the right end of the drum screen (14). The discharge pipe of the drum screen (14) is connected to the inlet of the soil collection pit (15). A return pipe (16) is fixed inside the discharge port of the soil collection pit (15). The left end of the return pipe (16) is connected to the water outlet pipe (9). A drainage pool (13) is provided on the rear side of the hydrocyclone separator (11). The outlet of the hydrocyclone separator (11) is connected to the inlet of the drainage pool (13). A material injection assembly (6) is installed on the front side of the treatment pool (1). A toggle assembly (5) is installed on the rear side inside the treatment pool (1). A rotating assembly (7) is installed on the front side of the treatment pool (1). Stirring assembly (2): includes a fixed pipe (21), a guide pipe (22), a stirring pipe (23), and a brush slip ring (24). The front side of the treatment tank (1) has two corresponding mounting holes. The fixed pipe (21) is rotatably connected inside the mounting holes. The guide pipe (22) is fixed at the rear end of the circumferential surface of the fixed pipe (21). The guide pipe (22) has evenly distributed openings on the circumferential surface of the guide pipe (22). The stirring pipe (23) is fixed inside the openings. The brush slip ring (24) is installed at the front end of the circumferential surface of the fixed pipe (21). An adjustment assembly (4) is installed on the circumferential surface of the guide pipe (22). An actuation assembly (5) is installed inside the stirring pipe (23). Wherein: the input terminals of the material pump (10) and the brush slip ring (24) are both electrically connected to the output terminals of an external control switch group.

2. The river and lake water turbidity reduction system based on flocculation combined with cyclone separation according to claim 1, characterized in that: The adjustment component (4) includes a locking post (41) and a connecting strip (42). The surface of the guide tube (22) is provided with three corresponding connecting strips (42). The side of the connecting strip (42) is fixed with evenly distributed locking posts (41). The circumferential surface of the stirring tube (23) is provided with a connecting hole, and the locking post (41) is located inside the corresponding connecting hole.

3. The river and lake water turbidity reduction system based on flocculation combined with cyclone separation according to claim 2, characterized in that: The actuation assembly (5) includes a fixed barrel (51), a first motor (52), a first gear (53), and a first gear ring (54). Two corresponding fixed barrels (51) are fixed on the rear side inside the treatment pool (1). The rear end of the guide pipe (22) is rotatably connected to the inside of the fixed barrel (51). The first motor (52) is installed on the upper end of the circumferential surface of the fixed barrel (51). The first gear ring (54) is fixed on the circumferential surface of the guide pipe (22). Three connecting strips (42) corresponding to the first gear ring (54) are fixed on the end face of the first gear ring (54). The first gear (53) meshes with the first gear ring (54). The input end of the first motor (52) is electrically connected to the output end of the brush slip ring (24).

4. The river and lake water turbidity reduction system based on flocculation combined with cyclone separation according to claim 1, characterized in that: The injection assembly (6) includes a connecting pipe (61), an injection pipe (62), an injection pump (63), and a feed pipe (64). The two fixed pipes (21) are connected by the connecting pipe (61). The lower end of the surface of the connecting pipe (61) is fixed with the injection pipe (62). The injection pipe (62) is connected to the connecting pipe (61). The front side of the treatment tank (1) is equipped with an injection pump (63). The lower end of the injection pipe (62) is fixed inside the outlet of the injection pump (63). The feed pipe (64) is fixed inside the feed inlet of the injection pump (63). The input end of the injection pump (63) is electrically connected to the output end of an external control switch group.

5. The river and lake water turbidity reduction system based on flocculation combined with cyclone separation according to claim 1, characterized in that: The rotating assembly (7) includes a second motor (71), a second gear (72), a sprocket ring (73), and a chain (74). The second motor (71) is installed on the front side of the treatment pool (1). The second gear (72) is fixed on the output shaft of the second motor (71). The sprocket ring (73) is fixed at the front end of the circumferential surface of the fixed tube (21). The two sprocket rings (73) are connected by the chain (74). The front end of the right sprocket ring (73) is fixed with a second gear ring. The second gear ring meshes with the second gear (72). The input end of the second motor (71) is electrically connected to the output end of an external control switch group.

6. The river and lake water turbidity reduction system based on flocculation combined with cyclone separation according to claim 4, characterized in that: A connecting ring (8) is fixed at the front end of the circumferential surface of the feed pipe (64), and the front end of the connecting ring (8) is provided with uniformly distributed mounting holes.