Overflow low dam-based river front phosphorus removal device

Abstract

This invention discloses a river pre-treatment phosphorus removal device based on an overflow low dam, relating to the field of phosphorus removal technology. This river pre-treatment phosphorus removal device based on an overflow low dam includes a flow guiding mechanism, a filtration device, a sedimentation device, a paddle device, a return flow device, and a phosphorus removal device. First, the flow guiding mechanism effectively guides the water flowing through the river into the device, ensuring that pollutants are intercepted and treated to the maximum extent. Then, the combined use of the filtration and sedimentation devices helps to retain most of the suspended particles in the water, and the phosphorus removal device uses hematite ore to remove phosphorus from the water. This invention provides a practical, economical, and effective solution for the treatment of phosphorus pollution in water bodies, combining innovation and applicability.

Description

Technical Field

[0001] This invention relates to the field of phosphorus removal technology, specifically to a river pre-treatment phosphorus removal device based on an overflow low dam. Background Technology

[0002] Phosphorus pollution is a major cause of eutrophication in rivers. In small rivers, excessive phosphorus mainly originates from various agricultural non-point source pollution sources such as fertilizers, agricultural waste, domestic sewage, livestock manure, and aquaculture wastewater. When natural water bodies receive this wastewater, the phosphorus and other nutrients in the water increase, leading to severe water quality deterioration. This poses a threat to the quality of rural living environments, agricultural ecological environments, and water environments in my country, especially seriously threatening the safety of drinking water sources. The necessity of phosphorus removal: In addition to controlling agricultural non-point source pollution, reducing the phosphorus content in water bodies can effectively prevent eutrophication. However, deep treatment of river water (including physical, chemical, and biological methods) is costly and requires large volumes of water, making it economically infeasible. Characteristics and applications of overflow low dams: It is worth noting that, according to statistics, only a few percent of rivers nationwide have a depth of more than one meter, with the rest being less than one meter. Overflow low dams are widely used. Based on the structural characteristics of overflow dams, chemical adsorption is employed, which has advantages such as simple structure, low energy consumption, and large adsorption capacity. It can effectively reduce the phosphorus content of small river bodies and plays an important role in maintaining the aquatic ecological environment.

[0003] Most current phosphorus removal methods on the market involve adding chemical substances for precipitation or using polymer semi-permeable membranes for phosphorus separation. These methods are inefficient, costly, and difficult to maintain. This device uses hematite as the filter material. Hematite can fix free phosphorus in the water, thus achieving the effect of phosphorus removal. Moreover, hematite does not react with phosphorus in the water and does not produce other substances. The process of adsorbing phosphorus is a physical reaction. In addition, devices on the market lack filtration devices. Large objects accumulating near the device will reduce the filtration effect and are difficult to clean. Furthermore, there is a lack of means to treat sediment and other substances in the water. Long-term sediment accumulation also shortens the maintenance cycle of the device and reduces the phosphorus removal effect. At the same time, most similar products are driven by adding a power source, which increases the difficulty and cost of maintenance. Summary of the Invention

[0004] This invention provides a river pre-treatment phosphorus removal device based on an overflow low dam, which has the following beneficial effects:

[0005] A river pre-treatment phosphorus removal device based on an overflow low dam specifically includes: a flow guiding mechanism, a filter device fixedly connected to the top of the flow guiding mechanism, a sedimentation device fixedly connected to the side of the flow guiding mechanism, a paddle device fixedly connected to the bottom of the sedimentation device, a phosphorus removal device fixedly connected to the bottom of the paddle device, and a return flow device fixedly connected to the side of the phosphorus removal device.

[0006] The flow guiding mechanism includes a flow guiding plate, a baffle plate fixedly connected to the top of the flow guiding plate, a first bracket fixedly connected to the side of the flow guiding plate, a second bracket fixedly connected to the top of the flow guiding plate on both sides of the baffle plate, a water blocking block fixedly connected to the top of the flow guiding plate, a water outlet hole opened on the side of the flow guiding plate, the top of the second bracket fixedly connected to the bottom of the filter device, and the side of the flow guiding plate fixedly connected to the sedimentation device.

[0007] Preferably, the filtration device includes a rotating chassis, a first filter frame fixedly connected to the side of the rotating chassis, a first filter screen fixedly connected to the inner wall of the first filter frame, a second filter frame fixedly connected to the bottom of the first filter frame, a filter plate fixedly connected to the inner wall of the second filter frame, an output end of a gear transmission mechanism fixedly connected to the bottom of the rotating chassis, a first bevel gear fixedly connected to the input end of the gear transmission mechanism, a third bracket sleeved and rotatably connected to the input end of the gear transmission mechanism, the third bracket being disposed between the first bevel gear and the rotating chassis, a filter baffle fixedly connected to the side of the third bracket, a side of the third bracket away from the filter baffle fixedly connected to the top of a guide plate, an input end of the gear transmission mechanism penetrating the first bracket and rotatably connected to the first bracket, a bottom of the gear transmission mechanism fixedly connected to the top of the second bracket, and a side of the first filter frame in contact with the side of the baffle.

[0008] Preferably, the sedimentation device includes a sedimentation tank, a separation tank fixedly connected to the bottom of the sedimentation tank, a collection device connected to the side of the separation tank, an inlet pipe and an outlet pipe connected to the side of the sedimentation tank respectively, a fourth support fixedly connected to the portion of the side of the sedimentation tank located between the inlet pipe and the outlet pipe, an adjustment device fixedly connected to the top of the sedimentation tank at the end of the side of the sedimentation tank away from the inlet pipe, an outlet hole connected to the end of the inlet pipe away from the sedimentation tank, a side of the fourth support fixedly connected to the side of the guide plate, a bottom of the outlet pipe connected to the top of the paddle device, and a top of the sedimentation tank flush with the top of the guide plate. The separation tank is designed primarily for finely separating the settled solid impurities, ensuring that the final discharged water is clearer. Simultaneously, a collection device is connected to the side of the separation tank for effectively collecting and treating the settled solid waste for subsequent processing. An inlet pipe is provided on the side of the sedimentation tank, which guides the water flow into the sedimentation tank. To ensure the overall structural stability of the sedimentation tank and optimize the liquid inflow and outflow process, a fourth support is fixedly connected to one side of the inlet pipe. This support not only increases structural stability but also connects tightly to the baffle plate on the side. The baffle plate's design further optimizes the water flow direction and velocity, slowing down the flow and thus enhancing the sedimentation effect. An outlet pipe connects to the side of the sedimentation tank away from the inlet pipe. The outlet pipe's design ensures that the treated water can be smoothly discharged from the sedimentation tank. Simultaneously, the bottom of this outlet pipe connects to the top of the paddle assembly. This connection allows the settled water to directly enter the paddle assembly for further treatment or mixing. To achieve precise control of the entire sedimentation process, an adjustment device is fixedly connected to the top of the sedimentation tank. This device can be used to precisely adjust the water flow rate or the internal conditions of the sedimentation tank, thereby optimizing sedimentation efficiency and effect. Furthermore, the top of the sedimentation tank is designed to be flush with the top of the baffle plate. This design detail ensures a consistent water flow height, further reducing additional energy consumption and turbulence.

[0009] Preferably, the adjusting device includes an adjusting bracket and a baffle chamber. An adjusting screw is threaded through and connected to the top of the adjusting bracket. A handle turntable is fixedly connected to the top of the adjusting screw. An adjusting baffle is rotatably connected to the bottom of the adjusting screw. The baffle chamber is fixedly connected to the inner wall of the separation tank. The adjusting baffle is disposed on the inner wall of the baffle chamber and slidably connected to the baffle chamber. The bottom of the adjusting bracket is fixedly connected to the top of the sedimentation tank. The side of the adjusting baffle contacts the inner wall of the sedimentation tank.

[0010] Preferably, the collection device includes a collection tank shell, a collection box body is slidably connected to the inner wall of the collection tank shell, a collection box handle is fixedly connected to the inner wall of the collection box body, and the top of the collection tank shell is flush with the top of the sedimentation tank.

[0011] Preferably, the paddle device includes a water inlet tank. A third rotating shaft is rotatably connected through and to the inner wall of the water inlet tank. A power paddle is sleeved and fixedly connected to the third rotating shaft. The end of the third rotating shaft away from the power paddle is fixedly connected to the input end of a transmission mechanism. A gear shaft bracket is sleeved and fixedly connected to the transmission mechanism. Multiple sets of gear shaft brackets are provided. A gear mechanism housing is fixedly connected to the side of the water inlet tank. The transmission mechanism is located inside the gear mechanism housing. The side of the gear shaft bracket is fixedly connected to the inner wall of the gear mechanism housing. A second bevel gear is fixedly connected to the output end of the transmission mechanism. This type of paddle device is commonly used in hydropower systems, pump systems, or other industrial equipment requiring liquid flow control. Its core purpose is to convert liquid power into mechanical energy to drive other mechanical components. First, the water inlet tank is the basic component of the entire device, on which several key mechanical components are installed. The water inlet tank can accommodate the incoming liquid and control the liquid flow through its internal mechanism. This housing is typically made of high-strength materials to withstand fluid pressure and external impacts. On the inner wall of the inlet tank is a crucial rotating connecting component—the third shaft. This shaft is one of the core transmission parts of the entire system, with a power blade mounted on it that directly contacts the fluid and rotates under its power. The shape and material selection of the power blade are very important to ensure that it can efficiently convert the fluid power into the rotational power of the shaft. Opposite to the power blade, the input end of the transmission mechanism is fixedly connected to the third shaft. The gear mechanism is an extremely precise transmission device that transmits power from one component to another through the meshing of gears, while also adjusting the direction and speed of rotation. The gear mechanism housing not only protects the internal gears from external environmental influences but also provides additional support to ensure the stability of the gear mechanism. In the gear mechanism setup, the gear shaft support plays a vital supporting role. The presence of these supports ensures that the gear shaft will not shift due to external forces or its own weight during operation, thus maintaining the efficient operation of the entire system.

[0012] Preferably, the top of the second bevel gear meshes with the bottom of the first bevel gear, the bottom of the water outlet pipe is aligned with one side of the power blade, the side of the water inlet tank is fixedly connected to the side of the collection tank shell, and the gear mechanism shell is fixedly connected to the side of the collection tank shell.

[0013] Preferably, the reflux device includes a reflux outer housing, a reflux inner housing slidably connected to the inner wall of the reflux outer housing, a reflux funnel connected to the bottom of the reflux outer housing, a reflux pipe connected to the bottom of the reflux funnel, a third filter frame fixedly connected to the bottom of the reflux inner housing, a second filter screen fixedly connected to the inner wall of the third filter frame, an inner housing handle fixedly connected to the side of the reflux inner housing, a side of the reflux outer housing fixedly connected to the side of the gear mechanism housing, a reflux pipe connected to a phosphorus removal device at the end away from the reflux funnel, and a filter baffle extending into the interior of the reflux outer housing.

[0014] Preferably, the phosphorus removal device includes a filter box, a sliding strip fixedly connected to the inner wall of the filter box, a phosphorus removal box slidably connected to the inner wall of the filter box, a sliding groove adapted to the sliding strip on the side of the phosphorus removal box, an inner box handle fixedly connected to the inner wall of the phosphorus removal box, filter screen frames fixedly connected to both sides of the phosphorus removal box, a metal mesh fixedly connected to the inner wall of the filter screen frames, a flow guide block fixedly connected to the bottom of the inner wall of the filter box, a side of the filter box communicating with a return pipe, and a top of the filter box fixedly connected to the bottom of the inlet tank. The inner wall of the filter box is also slidably connected to the phosphorus removal box. This design allows the phosphorus removal box to be adjusted more flexibly. Furthermore, a sliding groove adapted to the sliding strip is specially designed on one side of the phosphorus removal box. This precise design not only increases the contact area and reduces friction but also effectively ensures that the phosphorus removal box can operate stably and efficiently during operation. This design offers significant convenience, especially when replacing or cleaning the phosphorus removal chamber. Notably, an inner handle is fixedly attached to the inner wall of the chamber, enhancing both convenience and operational safety. For operators, the handle simplifies movement and maintenance. Furthermore, filter frames are fixedly attached to both sides of the chamber. This symmetrical design meets mechanical stability requirements and enhances filtration efficiency. Inside the filter frames, a fixed metal mesh plays a crucial role. The metal mesh can withstand high chemical and physical stresses and effectively intercepts larger solid particles during filtration. This design addresses both material corrosion resistance and particle size distribution, ensuring the ability to handle various complex water qualities. Another innovative design is the fixed flow guide block at the bottom of the inner wall of the filter chamber. This block effectively optimizes the water flow path, improving the overall filtration efficiency. Additionally, the side of the filter chamber connects to a return pipe, enabling water recycling, reducing resource waste, and promoting environmental friendliness. Finally, the top of the filter chamber is fixedly connected to the bottom of the inlet tank. This interconnected design ensures that the phosphorus removal unit can be easily integrated with other water treatment systems, resulting in a more comprehensive water treatment solution. This top-and-bottom connection not only increases system stability but also optimizes water intake and discharge efficiency.

[0015] This invention provides a river pre-treatment phosphorus removal device based on an overflow low dam. It has the following beneficial effects:

[0016] 1. This river pre-treatment phosphorus removal device based on overflow low dam uses hematite as the filter material, which is beneficial for phosphorus adhesion. Furthermore, the hematite can be reused after chemical or high-temperature treatment, thus improving purification efficiency and reducing phosphorus removal costs compared to traditional methods.

[0017] 2. The river pre-treatment phosphorus removal device based on overflow low dam uses a rotary filtration method to separate large particles in the water, such as branches and leaves, and place them into a designated device, thereby filtering the water and extending the maintenance cycle.

[0018] 3. The river pre-treatment phosphorus removal device based on overflow low dam uses a passive sedimentation method to settle denser substances such as silt in the water, thereby separating water from silt. The separated silt enters the collection device for unified treatment, and the purified water is conducive to phosphorus removal, extending the maintenance cycle of the phosphorus removal device.

[0019] 4. The river pre-filter based on the overflow low dam uses a paddle device that is driven by the gravitational potential energy of water flowing downhill and transmits power through a gear transmission mechanism to drive the filter device for filtration. Compared with directly adding a drive device, this paddle device reduces maintenance costs and difficulty, while extending the maintenance cycle. It also automatically increases the rotation speed when the water flow is high and decreases the speed when the water flow is low, achieving automatic adjustment.

[0020] 5. The river pre-treatment phosphorus removal device based on overflow low dam uses a reflux device to collect large particulate matter in the water. At the same time, the filtered water re-enters the filtration device along the reflux pipe for filtration, thereby purifying the water and facilitating phosphorus removal of the entire water body. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the front structure of the river pre-positioned phosphorus removal device based on an overflow low dam according to the present invention.

[0022] Figure 2 This is a schematic diagram of the rear structure of the river pre-positioned phosphorus removal device based on an overflow low dam according to the present invention.

[0023] Figure 3 This is a schematic diagram of the flow guiding mechanism of the present invention;

[0024] Figure 4 This is a schematic diagram of the filter device structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the internal structure of the filtration device of the present invention;

[0026] Figure 6 This is a partial structural diagram of the filtration device of the present invention;

[0027] Figure 7 This is a schematic diagram of the precipitation device of the present invention;

[0028] Figure 8 This is a schematic diagram of the back structure of the precipitation device of the present invention;

[0029] Figure 9 This is a schematic diagram of the top structure of the sedimentation device of the present invention;

[0030] Figure 10 This is a schematic diagram of the internal structure of the precipitation device of the present invention;

[0031] Figure 11 This is a schematic diagram of the regulating device structure of the present invention;

[0032] Figure 12 This is a schematic diagram of the collection device structure of the present invention;

[0033] Figure 13 This is a schematic diagram of the blade device structure of the present invention;

[0034] Figure 14 This is a schematic diagram of the internal structure of the blade device of the present invention;

[0035] Figure 15 This is a schematic diagram of the reflux device structure of the present invention;

[0036] Figure 16 This is a schematic diagram of the reflux inner box structure of the present invention;

[0037] Figure 17 This is a schematic diagram of the phosphorus removal device of the present invention;

[0038] Figure 18 This is a schematic diagram of the internal structure of the phosphorus removal device of the present invention.

[0039] In the diagram: 1. Flow guiding mechanism; 2. Filtration device; 3. Sedimentation device; 4. Paddle device; 5. Reflux device; 6. Phosphorus removal device; 11. Flow guide plate; 13. Baffle plate; 14. First support; 15. Second support; 16. Water baffle; 17. Water outlet; 21. Rotating chassis; 22. First filter frame; 23. First filter screen; 24. Second filter frame; 25. Filter plate; 28. Gear transmission mechanism; 210. First bevel gear; 211. Third support; 212. Filter baffle; 31. Sedimentation tank; 32. Separation tank; 33. Collection device; 34. Inlet pipe; 35. Fourth support; 36. Outlet pipe; 37. Adjustment device; 331. Collection tank shell; 332. 333. Collection box body; 371. Adjusting bracket; 372. Adjusting screw; 373. Handle turntable; 374. Adjusting baffle; 375. Baffle chamber; 41. Water inlet tank; 42. Third rotating shaft; 43. Power blade; 44. Transmission mechanism; 45. Gear shaft bracket; 46. Gear mechanism housing; 47. Second bevel gear; 51. Return outer box; 52. Return inner box; 53. Return funnel; 54. Return pipe; 55. Third filter frame; 56. Second filter screen; 57. Inner box handle; 61. Filter box; 62. Sliding strip; 63. Phosphorus removal box; 64. Slide groove; 65. Inner box handle; 66. Filter screen frame; 67. Metal mesh; 68. Guide block. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Example 1:

[0042] Please see Figures 1-6 The present invention provides a technical solution: a river pre-treatment phosphorus removal device based on an overflow low dam, specifically including: a flow guiding mechanism 1, a filter device 2 fixedly connected to the top of the flow guiding mechanism 1, a sedimentation device 3 fixedly connected to the side of the flow guiding mechanism 1, a paddle device 4 fixedly connected to the bottom of the sedimentation device 3, a phosphorus removal device 6 fixedly connected to the bottom of the paddle device 4, and a return flow device 5 fixedly connected to the side of the phosphorus removal device 6;

[0043] The flow guiding mechanism 1 includes a flow guiding plate 11, a baffle plate 13 fixedly connected to the top of the flow guiding plate 11, a first bracket 14 fixedly connected to the side of the flow guiding plate 11, a second bracket 15 fixedly connected to the top of the flow guiding plate 11 on both sides of the baffle plate 13, a water blocking block 16 fixedly connected to the top of the flow guiding plate 11, and a water outlet hole 17 opened on the side of the flow guiding plate 11. The top of the second bracket 15 is fixedly connected to the bottom of the filter device 2, and the side of the flow guiding plate 11 is fixedly connected to the sedimentation device 3.

[0044] The filtering device 2 includes a rotating chassis 21. A first filter frame 22 is fixedly connected to the side of the rotating chassis 21. A first filter screen 23 is fixedly connected to the inner wall of the first filter frame 22. A second filter frame 24 is fixedly connected to the bottom of the first filter frame 22. A filter plate 25 is fixedly connected to the inner wall of the second filter frame 24. The output end of a gear transmission mechanism 28 is fixedly connected to the bottom of the rotating chassis 21. A first bevel gear 210 is fixedly connected to the input end of the gear transmission mechanism 28. A sleeve is fitted on the input end of the gear transmission mechanism 28. A third bracket 211 is rotatably connected to the first bevel gear 210 and the rotating base 21. A filter baffle 212 is fixedly connected to the side of the third bracket 211. The side of the third bracket 211 away from the filter baffle 212 is fixedly connected to the top of the guide plate 11. The input end of the gear transmission mechanism 28 passes through the first bracket 14 and is rotatably connected to the first bracket 14. The bottom of the gear transmission mechanism 28 is fixedly connected to the top of the second bracket 15. The side of the first filter frame 22 contacts the side of the baffle plate 13.

[0045] In use, water enters the inner wall of the guide plate 11 along the guide plate 11, and passes through the first filter frame 22 through the baffle plate 13 and the water blocking block 16 to the outlet 17 and enter the next device. When the water flows through the first filter frame 22, it passes through the first filter screen 23. Large particles in the water are intercepted by the first filter screen 23. The gear transmission mechanism 28 rotates, driving the rotating base 21 to rotate. The rotating base 21 rotates, driving the first filter frame 22 to rotate. The rotation of the first filter frame 22 drives the first filter screen 23 and the second filter frame 24 to perform circular motion. Large particles are separated from the water by the filtration effect of the first filter screen 23. When the first filter frame 22 rotates to the vertical direction, the large particles are separated from the surface of the first filter screen 23 under the action of gravity, and fall into the inner wall of the filter baffle 212 and enter the return device 5 along the inner wall of the filter baffle 212. It enables the separation of large particles in water bodies and the automatic collection of large particles, thus achieving automatic separation of large particles within water bodies.

[0046] Example 2:

[0047] Please see Figures 1-12 Based on Embodiment 1, the present invention provides a technical solution: the sedimentation device 3 includes a sedimentation tank 31, a separation tank 32 is fixedly connected to the bottom of the sedimentation tank 31, a collection device 33 is connected to the side of the separation tank 32, an inlet pipe 34 and an outlet pipe 36 are respectively connected to the side of the sedimentation tank 31, a fourth support 35 is fixedly connected to the part of the side of the sedimentation tank 31 located between the inlet pipe 34 and the outlet pipe 36, the end of the side of the sedimentation tank 31 away from the inlet pipe 34 is connected to an adjustment device 37, the end of the inlet pipe 34 away from the sedimentation tank 31 is connected to the outlet hole 17, the side of the fourth support 35 is fixedly connected to the side of the guide plate 11, the bottom of the outlet pipe 36 is connected to the top of the paddle device 4, and the top of the sedimentation tank 31 is flush with the top of the guide plate 11.

[0048] The regulating device 37 includes an regulating bracket 371 and a baffle chamber 375. An regulating screw 372 is threaded through and connected to the top of the regulating bracket 371. A handle turntable 373 is fixedly connected to the top of the regulating screw 372. An regulating baffle 374 is rotatably connected to the bottom of the regulating screw 372. The baffle chamber 375 is fixedly connected to the inner wall of the separation tank 32. The regulating baffle 374 is disposed on the inner wall of the baffle chamber 375 and slidably connected to the baffle chamber 375. The bottom of the regulating bracket 371 is fixedly connected to the top of the sedimentation tank 31. The side of the regulating baffle 374 contacts the inner wall of the sedimentation tank 31.

[0049] The collection device 33 includes a collection pool shell 331, a collection box 332 is slidably connected to the inner wall of the collection pool shell 331, a collection box handle 333 is fixedly connected to the inner wall of the collection box 332, and the top of the collection pool shell 331 is flush with the top of the sedimentation tank 31.

[0050] In use, water flows into the sedimentation tank 31 through the inlet pipe 34. The separation tank 32 and the collection device 33 are connected. The liquid level inside the collection device 33 is level with the liquid level inside the inlet pipe 34. After entering the sedimentation tank 31 through the inlet pipe 34, the water flows out through the outlet pipe 36. During the process of the water flowing from the inlet pipe 34 to the outlet pipe 36, the water velocity is reduced by the action of the inner wall of the sedimentation tank 31. The silt and other components in the water settle inside the sedimentation tank 31 under the action of inertia. The water inside the separation tank 32 and the collection device 33 remains almost still. Only the water in the sedimentation tank 31 above the separation tank 32 keeps flowing. The settled silt automatically enters the collection device 33 for collection under the action of the inclined baffle inside the separation tank 32. The collecting device 33, separation tank 32, and sedimentation tank 31 together constitute a communicating vessel. Under the principle of the communicating vessel, the liquid levels inside the collecting device 33 and the sedimentation tank 31 remain flush. When adjusting the flow rate, the handle dial 373 is manually rotated. The rotation of the handle dial 373 drives the adjusting screw 372 to rotate. The rotation of the adjusting screw 372, through its thread, moves the adjusting bracket 371 up and down. This movement of the adjusting screw 372 moves the adjusting baffle 374 up and down, changing the size of the outlet of the outlet pipe 36 and thus altering the flow rate. Furthermore, the height of the adjusting baffle 374 also affects the degree of sediment separation. When the adjusting baffle 374 is raised, the volume of still water inside the sedimentation tank 31 increases, resulting in more thorough sedimentation. This achieves the goal of automatic sedimentation and purification of substances with a density greater than water, such as sediment, using the communicating vessel and the principle of inertia. This reduces the amount of sediment entering the filtration device and extends the filtration cycle.

[0051] Example 3:

[0052] Please see Figures 1-14 Based on Embodiments 1 and 2, the present invention provides a technical solution: the blade device 4 includes a water inlet tank 41, a third rotating shaft 42 is rotatably connected through the inner wall of the water inlet tank 41, a power blade 43 is sleeved and fixedly connected to the third rotating shaft 42, an input end of a transmission mechanism 44 is fixedly connected to the end of the third rotating shaft 42 away from the power blade 43, a gear shaft bracket 45 is sleeved and fixedly connected to the transmission mechanism 44, multiple sets of gear shaft brackets 45 are provided, a gear mechanism housing 46 is fixedly connected to the side of the water inlet tank 41, the transmission mechanism 44 is disposed inside the gear mechanism housing 46, the side of the gear shaft bracket 45 is fixedly connected to the inner wall of the gear mechanism housing 46, and a second bevel gear 47 is fixedly connected to the output end of the transmission mechanism 44.

[0053] The top of the second bevel gear 47 meshes with the bottom of the first bevel gear 210, the bottom of the water outlet pipe 36 is aligned with one side of the power blade 43, the side of the water inlet tank 41 is fixedly connected to the side of the collection tank housing 331, and the gear mechanism housing 46 is fixedly connected to the side of the collection tank housing 331.

[0054] In operation, water flowing through the outlet pipe 36 acts directly on the surface of the power blade 43. Under the influence of gravity, the water causes the power blade 43 to rotate. This rotation drives the transmission mechanism 44, which in turn drives the second bevel gear 47, which in turn drives the first bevel gear 210. This provides power to the filter device 2. The gear mechanism housing 46 provides protection and support for the transmission mechanism 44. This method utilizes the gravitational potential energy of water to drive the filter device, reducing the need for a separate drive unit, minimizing resource consumption, and facilitating equipment maintenance.

[0055] Example 4:

[0056] Please see Figures 1-16 Based on Embodiments 1, 2, and 3, the present invention provides a technical solution: the reflux device 5 includes a reflux outer housing 51, a reflux inner housing 52 slidably connected to the inner wall of the reflux outer housing 51, a reflux funnel 53 connected to the bottom of the reflux outer housing 51, a reflux pipe 54 connected to the bottom of the reflux funnel 53, a third filter frame 55 fixedly connected to the bottom of the reflux inner housing 52, a second filter screen 56 fixedly connected to the inner wall of the third filter frame 55, an inner housing handle 57 fixedly connected to the side of the reflux inner housing 52, a side of the reflux outer housing 51 fixedly connected to the side of the gear mechanism housing 46, a reflux pipe 54 connected to a phosphorus removal device 6 at the end away from the reflux funnel 53, and a filter baffle 212 extending into the interior of the reflux outer housing 51.

[0057] During operation, large particles on the surface of the first filter screen 23 enter the reflux inner chamber 52 under the influence of gravity, following the filter baffle 212. The large particles are then retained inside the reflux inner chamber 52 by the second filter screen 56 at the bottom of the reflux inner chamber 52. Water then flows along the reflux funnel 53 into the reflux pipe 54 and into the phosphorus removal device 6 for phosphorus removal. This system achieves automatic collection of large particles while simultaneously recirculating the separated water, thus ensuring effective phosphorus removal.

[0058] Please see Figures 1-18Based on Embodiments 1, 2, 3, and 4, the present invention provides a technical solution: the phosphorus removal device 6 includes a filter box 61, a sliding strip 62 is fixedly connected to the inner wall of the filter box 61, a phosphorus removal box 63 is slidably connected to the inner wall of the filter box 61, a sliding groove 64 adapted to the sliding strip 62 is opened on the side of the phosphorus removal box 63, an inner box handle 65 is fixedly connected to the inner wall of the phosphorus removal box 63, filter screen frames 66 are fixedly connected to both sides of the phosphorus removal box 63, a metal mesh 67 is fixedly connected to the inner wall of the filter screen frame 66, a flow guide block 68 is fixedly connected to the bottom of the inner wall of the filter box 61, the side of the filter box 61 is connected to the return pipe 54, and the top of the filter box 61 is fixedly connected to the bottom of the inlet tank 41.

[0059] During operation, water flows through the inlet tank 41 and into the filter tank 61. The water then flows into the phosphorus removal tank 63, which is filled with hematite. The water undergoes phosphorus removal as it passes through the hematite, purifying the water by adsorbing free phosphorus. Furthermore, the pre-filter process results in less impurities in the water, facilitating thorough phosphorus removal by the hematite. After the hematite has completed its phosphorus removal process, the entire hematite removal tank 63 can be removed using the inner handle 65, allowing for quick replacement of the hematite. The guide block 68 also facilitates water flow into the phosphorus removal tank 63, reducing the accumulation of impurities at the bottom of the filter tank 61. This process effectively removes phosphorus from the water. The hematite phosphorus removal process is physical and does not introduce new impurities into the water. Hematite is also inexpensive and readily available, and can be reused after high-temperature treatment.

[0060] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A river pre-treatment phosphorus removal device based on an overflow low dam, characterized in that: Includes a flow guiding mechanism (1), a filter device (2) is fixedly connected to the top of the flow guiding mechanism (1), a sedimentation device (3) is fixedly connected to the side of the flow guiding mechanism (1), a paddle device (4) is fixedly connected to the bottom of the sedimentation device (3), a phosphorus removal device (6) is fixedly connected to the bottom of the paddle device (4), and a reflux device (5) is fixedly connected to the side of the phosphorus removal device (6). The flow guiding mechanism (1) includes a flow guiding plate (11), a baffle plate (13) is fixedly connected to the top of the flow guiding plate (11), a first bracket (14) is fixedly connected to the side of the flow guiding plate (11), a second bracket (15) is fixedly connected to the top of the flow guiding plate (11) on both sides of the baffle plate (13), a water blocking block (16) is fixedly connected to the top of the flow guiding plate (11), a water outlet hole (17) is opened on the side of the flow guiding plate (11), the top of the second bracket (15) is fixedly connected to the bottom of the filter device (2), and the side of the flow guiding plate (11) is fixedly connected to the sedimentation device (3). The filtering device (2) includes a rotating chassis (21), a first filter frame (22) is fixedly connected to the side of the rotating chassis (21), a first filter screen (23) is fixedly connected to the inner wall of the first filter frame (22), a second filter frame (24) is fixedly connected to the bottom of the first filter frame (22), a filter plate (25) is fixedly connected to the inner wall of the second filter frame (24), the output end of a gear transmission mechanism (28) is fixedly connected to the bottom of the rotating chassis (21), a first bevel gear (210) is fixedly connected to the input end of the gear transmission mechanism (28), and a sleeve is fitted on the input end of the gear transmission mechanism (28). A third bracket (211) is rotatably connected. The third bracket (211) is located between the first bevel gear (210) and the rotating chassis (21). A filter baffle (212) is fixedly connected to the side of the third bracket (211). The side of the third bracket (211) away from the filter baffle (212) is fixedly connected to the top of the guide plate (11). The input end of the gear transmission mechanism (28) passes through the first bracket (14) and is rotatably connected to the first bracket (14). The bottom of the gear transmission mechanism (28) is fixedly connected to the top of the second bracket (15). The side of the first filter frame (22) contacts the side of the baffle plate (13).

2. The river pre-treatment phosphorus removal device based on an overflow low dam according to claim 1, characterized in that: The sedimentation device (3) includes a sedimentation tank (31), a separation tank (32) is fixedly connected to the bottom of the sedimentation tank (31), a collection device (33) is connected to the side of the separation tank (32), an inlet pipe (34) and an outlet pipe (36) are respectively connected to the side of the sedimentation tank (31), a fourth support (35) is fixedly connected to the part of the side of the sedimentation tank (31) located between the inlet pipe (34) and the outlet pipe (36), and the side of the sedimentation tank (31) is far from the... One end of the inlet pipe (34) is connected to the outlet pipe (36). The top of the sedimentation tank (31) is fixedly connected to the regulating device (37). The end of the inlet pipe (34) away from the sedimentation tank (31) is connected to the outlet hole (17). The side of the fourth bracket (35) is fixedly connected to the side of the guide plate (11). The bottom of the outlet pipe (36) is connected to the top of the paddle device (4). The top of the sedimentation tank (31) is flush with the top of the guide plate (11).

3. A river pre-treatment phosphorus removal device based on an overflow low dam according to claim 2, characterized in that: The regulating device (37) includes an regulating bracket (371) and a baffle chamber (375). The top of the regulating bracket (371) is threaded with an regulating screw (372). The top of the regulating screw (372) is fixedly connected with a handle turntable (373). The bottom of the regulating screw (372) is rotatably connected with an regulating baffle (374). The baffle chamber (375) is fixedly connected to the inner wall of the separation tank (32). The regulating baffle (374) is set on the inner wall of the baffle chamber (375) and slidably connected to the baffle chamber (375). The bottom of the regulating bracket (371) is fixedly connected to the top of the sedimentation tank (31). The side of the regulating baffle (374) is in contact with the inner wall of the sedimentation tank (31).

4. A river pre-treatment phosphorus removal device based on an overflow low dam according to claim 3, characterized in that: The collection device (33) includes a collection pool shell (331), a collection box (332) is slidably connected to the inner wall of the collection pool shell (331), a collection box handle (333) is fixedly connected to the inner wall of the collection box (332), and the top of the collection pool shell (331) is flush with the top of the sedimentation tank (31).

5. A river pre-treatment phosphorus removal device based on an overflow low dam according to claim 2, characterized in that: The blade device (4) includes a water inlet tank (41), a third rotating shaft (42) is rotatably connected through the inner wall of the water inlet tank (41), a power blade (43) is sleeved and fixedly connected on the third rotating shaft (42), the input end of a transmission mechanism (44) is fixedly connected to one end of the third rotating shaft (42) away from the power blade (43), a gear shaft bracket (45) is sleeved and fixedly connected on the transmission mechanism (44), and multiple sets of gear shaft brackets (45) are provided. A gear mechanism housing (46) is fixedly connected to the side of the water inlet tank (41), the transmission mechanism (44) is located inside the gear mechanism housing (46), the side of the gear shaft bracket (45) is fixedly connected to the inner wall of the gear mechanism housing (46), and a second bevel gear (47) is fixedly connected to the output end of the transmission mechanism (44).

6. A river pre-treatment phosphorus removal device based on an overflow low dam according to claim 5, characterized in that: The top of the second bevel gear (47) meshes with the bottom of the first bevel gear (210), the bottom of the water outlet pipe (36) is aligned with one side of the power blade (43), the side of the water inlet tank (41) is fixedly connected to the side of the collection tank shell (331), and the gear mechanism shell (46) is fixedly connected to the side of the collection tank shell (331).

7. A river pre-treatment phosphorus removal device based on an overflow low dam according to claim 1, characterized in that: The reflux device (5) includes a reflux outer box (51), a reflux inner box (52) slidably connected to the inner wall of the reflux outer box (51), a reflux funnel (53) connected to the bottom of the reflux outer box (51), a reflux pipe (54) connected to the bottom of the reflux funnel (53), a third filter frame (55) fixedly connected to the bottom of the reflux inner box (52), a second filter screen (56) fixedly connected to the inner wall of the third filter frame (55), an inner box handle (57) fixedly connected to the side of the reflux inner box (52), a side of the reflux outer box (51) fixedly connected to the side of the gear mechanism housing (46), a reflux pipe (54) connected to the phosphorus removal device (6) at one end away from the reflux funnel (53), and a filter baffle (212) extending into the interior of the reflux outer box (51).

8. A river pre-treatment phosphorus removal device based on an overflow low dam according to claim 7, characterized in that: The phosphorus removal device (6) includes a filter box (61), a sliding strip (62) is fixedly connected to the inner wall of the filter box (61), a phosphorus removal box (63) is slidably connected to the inner wall of the filter box (61), a sliding groove (64) adapted to the sliding strip (62) is opened on the side of the phosphorus removal box (63), an inner box handle (65) is fixedly connected to the inner wall of the phosphorus removal box (63), a filter screen frame (66) is fixedly connected to both sides of the phosphorus removal box (63), a metal mesh (67) is fixedly connected to the inner wall of the filter screen frame (66), a flow guide block (68) is fixedly connected to the bottom of the inner wall of the filter box (61), the side of the filter box (61) is connected to the return pipe (54), and the top of the filter box (61) is fixedly connected to the bottom of the inlet tank (41).

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