Water purification device for gate of water conservancy project

Abstract

The invention provides a water conservancy project gate water purification device and relates to the technical field of water conservancy project equipment, the water conservancy project gate water purification device comprises a dam and gate lifting assemblies arranged on the two sides of the dam, each gate lifting assembly comprises a supporting seat connected to the dam, and a servo motor is installed on the supporting seat. After the coarse filtering anti-blocking assembly is started, a first driving motor drives a grating to rotate, the grating intercepts large floating objects in water, a second driving motor drives a chain wheel to rotate, and a chain drives a sewage conveying hopper to move along a guide groove of a supporting frame through a connecting block; the fishing fork is matched with the decontamination fork to synchronously stir attached sundries to the area of the dirt conveying hopper, the cleaning brush synchronously scrubs the fine filter screen, blockage is avoided, the cleaned sundries are discharged through the dirt guide plate, cyclic cleaning of the grating and the fine filter screen is achieved, water is purified, a gate accurately controls water, and clean water flow and stable operation of equipment are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of water conservancy engineering equipment technology, and in particular to a water purification device for a water conservancy engineering gate. Background Technology

[0002] The gate purification device in water conservancy projects is mainly used to improve the quality of water flow and reduce the pollution of water bodies by suspended solids and impurities. Traditional water conservancy gate equipment often faces problems such as poor water quality and impurity blockage, which affect the smooth flow of water and the normal operation of the facilities. Therefore, efficient water purification devices have become an important measure to improve the operating efficiency and water quality of water conservancy projects.

[0003] However, in practical use, the following shortcomings still exist. For example, existing water purification devices for gates in water conservancy projects cannot achieve the cyclic cleaning of bar screens and fine filters, thus failing to purify the water, precisely control the water flow at the gates, ensure clean water flow, and guarantee stable equipment operation. Bar screens are easily clogged by large floating objects, and fine filters suffer from reduced cross-sectional area due to the accumulation of small impurities, leading to a significant increase in water flow resistance. This not only reduces water purification efficiency but also affects the accuracy of gate water control, making it impossible to precisely adjust water level and flow to meet water conservancy scheduling needs. Furthermore, clogged bar screens and filters can cause water flow problems. Unblocked water can increase the stress on dam and gate structures, potentially leading to equipment deformation, seal failure, and other malfunctions in the long term. In severe cases, it can cause gate jamming, threatening the safe operation of water conservancy facilities. Furthermore, unremoved impurities can breed bacteria, produce odors, damage the aquatic ecosystem, and reduce the rate of water quality compliance after purification. In addition, manual cleaning of blockages requires machine shutdown, which not only increases maintenance costs and labor intensity but also affects the normal operation of water conservancy projects. Especially during critical periods such as the flood season, equipment failure may delay flood control scheduling and cause greater safety hazards.

[0004] Therefore, this invention proposes a water purification device for water conservancy engineering gates to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and to propose a water purification device for gates in water conservancy projects.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a water purification device for a gate in a water conservancy project, comprising a dam and gate lifting assemblies installed on both sides of the dam. The gate lifting assembly includes a support base connected to the dam, a servo motor mounted on the support base, a steel cable attached to the output end of the servo motor, and a gate body attached to the other end of the steel cable. The device also includes: A coarse filtration anti-clogging assembly includes a first drive motor installed on a dam, with a grid at the output end of the first drive motor and a retrieval fork connected to the grid. A support frame is connected to the side of the dam near the grid. A second drive motor is installed on the dam, with a sprocket connected to the output end of the second drive motor. A chain is mounted on the sprocket and positioned within an inner guide groove of the support frame. A sludge feeding hopper is slidably connected to the support frame, with a connecting block connected to the sludge feeding hopper and connected to the chain. A roller is rotatably connected to the sludge feeding hopper and positioned within an inner guide groove of the support frame. A cleaning fork is connected to the sludge feeding hopper, and a cleaning brush is mounted on the sludge feeding hopper. A guide plate is located on the side of the dam near the sludge feeding hopper, and a fine filter screen is located inside the dam near the cleaning brush.

[0007] Furthermore, the output end of the first drive motor is connected to a first rotating shaft, which is rotatably connected inside the dam. A second rotating shaft is rotatably connected to the side of the dam near the bottom. The two ends of the grid are respectively set on the first rotating shaft and the second rotating shaft. The grid forms a rotatable filter structure through the first rotating shaft and the second rotating shaft.

[0008] The beneficial effects of adopting the above-mentioned further solution are as follows: After the first drive motor starts, the output end drives the first rotating shaft to rotate inside the dam. Since the two ends of the screen are respectively set on the first rotating shaft and the second rotating shaft at the bottom of the dam, the second rotating shaft rotates synchronously with the first rotating shaft, forming a stable rotational support. The screen continues to rotate under the drive of the dual rotating shafts. When its grid structure rotates in the water flow, it can efficiently intercept large floating objects and suspended impurities in the water. The rotation action can also prevent impurities from accumulating on the screen surface, allowing the intercepted impurities to be sent to the designated cleaning area as the screen rotates, laying the foundation for the subsequent purification process and ensuring the continuity and efficiency of the initial filtration of the water flow.

[0009] Furthermore, a limiting tube is connected to the sewage hopper, a moving rod is slidably connected inside the limiting tube, and a telescopic spring is provided inside the limiting tube.

[0010] The beneficial effects of adopting the above-mentioned further solution are as follows: the limiting tube on the sludge feeding hopper provides a stable sliding guide for the moving rod, and the built-in telescopic spring is always in a pre-tensioned state, generating a continuous elastic thrust on the moving rod. When the sludge feeding hopper moves with the chain, the telescopic spring pushes the moving rod to extend along the limiting tube, so that the cleaning brush at the top fits tightly against the fine filter screen and the grid surface. The movement of the sludge feeding hopper drives the cleaning brush to move synchronously. The wear-resistant nylon bristles are adapted to the mesh depth and can penetrate deep into the filter screen pores to scrape off attached impurities. The elastic extension and contraction of the telescopic spring can buffer the contact pressure between the cleaning brush and the filter screen, avoiding scratching the filter screen, while ensuring uniform cleaning force at different positions and improving the cleaning effect of the filter screen.

[0011] Furthermore, one end of the telescopic spring is connected to the inside of the limiting tube, and the other end of the telescopic spring is connected to the moving rod. The cleaning brush is installed on the top of the moving rod, and the bristles of the cleaning brush are made of wear-resistant nylon material, with a length adapted to the mesh depth of the fine filter.

[0012] The beneficial effects of adopting the above-mentioned further solution are as follows: one end of the telescopic spring is fixed inside the limiting tube, and the other end is connected to the moving rod. Through elastic deformation, a continuous thrust is generated, which pushes the moving rod to slide up and down along the limiting tube, thereby driving the cleaning brush at the top to flexibly adjust its height. The cleaning brush is made of wear-resistant nylon bristles, which are tough and not easily worn, have a long service life, and the bristle length is precisely matched to the mesh depth of the fine filter screen. During the cleaning process, it can penetrate deep into the mesh to thoroughly remove residual fine impurities. When the sludge feeding bucket moves, the cleaning brush and the filter screen generate relative friction. With the combination of the rigidity and elasticity of the bristles, the pollutants on the surface and in the pores of the filter screen are efficiently removed, preventing the filter screen from clogging and ensuring smooth flow of filtered water.

[0013] Furthermore, a fine filter assembly is provided on the side of the dam away from the grid. The fine filter assembly includes a treatment box installed inside the dam. An inlet is provided on the side of the treatment box near the bottom, and a spiral baffle is installed inside the inlet.

[0014] The beneficial effects of adopting the above-mentioned further solution are as follows: The treatment box of the fine filtration component receives the water that has undergone preliminary filtration through the bottom inlet. When the water flows through, the spiral baffle inside the inlet causes the water to generate a rotating vortex. This vortex motion can enhance the centrifugal force of the water, causing the fine particulate impurities that are not completely intercepted in the water to gather to the outside of the water flow under the centrifugal force. At the same time, it prolongs the residence time of the water in the inlet area, promoting the sedimentation of particulate impurities. The spiral baffle can also disrupt the laminar flow state of the water, so that the water is evenly distributed into the subsequent filtration layer of the treatment box, avoiding insufficient filtration caused by excessively fast local water flow, and improving the overall purification efficiency.

[0015] Furthermore, a biological ring layer is provided on the side of the treatment box near the top, a zeolite layer is provided on the side of the treatment box near the top of the biological ring layer, and a slow-release oxygen packing layer is provided on the side of the treatment box near the top of the zeolite layer.

[0016] The beneficial effects of adopting the above-mentioned further scheme are as follows: a biological ring layer, a zeolite layer, and a slow-release oxygen packing layer are arranged sequentially from top to bottom in the treatment tank to form a multi-layer synergistic purification system. After preliminary pretreatment, the water flows upward and first decomposes organic pollutants through the biological ring layer, then adsorbs harmful ions through the zeolite layer, and finally optimizes the water quality through the slow-release oxygen packing layer. Each layer is closely connected, and the decomposition products of the biological ring layer can be further purified by subsequent layers. The oxygen released by the slow-release oxygen packing layer can also provide an aerobic environment for the microorganisms in the biological ring layer, improving the biodegradation efficiency. The multi-layer superposition achieves gradual and in-depth purification of water quality.

[0017] Furthermore, the bio-ring layer is formed by stacking multiple sets of hollow cylindrical bio-rings, with through holes in the ring walls; the zeolite layer uses activated zeolite particles; and the slow-release oxygen filler layer is composed of porous ceramic particles loaded with calcium peroxide.

[0018] The beneficial effects of adopting the above-mentioned further scheme are as follows: the biological ring layer is composed of stacked hollow cylindrical biological rings, and the through-pores in the ring wall increase the specific surface area, providing sufficient attachment sites for microorganisms. Microorganisms decompose organic pollutants in the water through metabolism. The activated zeolite particles in the zeolite layer have abundant porosity and ion exchange performance, which can efficiently adsorb harmful substances such as heavy metal ions and ammonia nitrogen. The porous ceramic particles in the slow-release oxygen packing layer are loaded with calcium peroxide, which can slowly release oxygen and provide a continuous oxygen source for aerobic microorganisms in the biological ring layer. At the same time, the pores of the ceramic particles can also adsorb some fine impurities. The three media each perform their respective functions and work synergistically to improve the water purification effect.

[0019] Furthermore, a drain outlet is provided on the top of the treatment tank on the side away from the water inlet, and a sludge collection hopper is provided at the bottom of the treatment tank, with a drain valve connected to one side of the sludge collection hopper.

[0020] The beneficial effects of adopting the above-mentioned further solution are as follows: After the water body that has passed through multiple layers of filtration and purification accumulates to the top in the treatment tank, it is discharged through the drain outlet located away from the inlet. The drain outlet is located at the top to ensure that the water body fully passes through all filtration layers, thus ensuring the purification effect. The sedimented impurities in the water body are collected by gravity into the sludge collection hopper at the bottom of the treatment tank. The sludge collection hopper is funnel-shaped, which facilitates the collection of impurities and avoids the accumulation of impurities. When the impurities in the sludge collection hopper accumulate to a certain amount, the drain valve on one side can be opened to quickly discharge the sedimented impurities from the treatment tank, preventing secondary pollution of the water body by impurities and ensuring the long-term stable operation of the treatment tank.

[0021] Compared with the prior art, the advantages and positive effects of the present invention are as follows: 1. In this invention, in the gate lifting assembly of the water purification device for a water conservancy project gate, a servo motor drives the steel rope to be wound and released via a take-up reel, causing the gate body to move up and down along the embankment, controlling the flow of water. After the coarse filtration anti-clogging assembly is activated, the first drive motor drives the screen to rotate, and the screen intercepts large floating objects in the water. The second drive motor drives the sprocket to rotate, and the chain drives the sludge feeding hopper to move along the guide groove of the support frame via a connecting block. The retrieval fork, in conjunction with the cleaning fork, simultaneously pushes the attached debris to the sludge feeding hopper area. When the chain drives the sludge feeding hopper to rotate, the cleaning brush simultaneously washes the fine filter screen to avoid clogging. The cleaned debris is discharged through the guide plate. Through the dual action of coarse and fine filtration, the water is purified, realizing the cyclic cleaning of the screen and the fine filter screen. The gate accurately controls the water flow, ensuring clean water flow and stable operation of the equipment.

[0022] 2. In this invention, the fine filtration component uses the treatment tank as its core to achieve deep water purification. The water that has undergone preliminary filtration flows in from the bottom inlet. The internal spiral baffles create eddies in the water flow, using centrifugal force to promote the sedimentation of fine particles and simultaneously allow the water to spread evenly. The water flows upward and sequentially penetrates the biological ring layer, zeolite layer, and slow-release oxygen packing layer. The hollow cylindrical biological ring increases the specific surface area through its pores, allowing microorganisms to attach and degrade organic matter. The activated zeolite particles adsorb heavy metals and ammonia nitrogen through their porous structure and ion exchange capacity. The porous ceramic particles loaded with calcium peroxide slowly release oxygen, providing an aerobic environment for aerobic microorganisms and assisting in the adsorption of impurities. After multi-layer synergistic purification, the qualified water is discharged from the top drain outlet. The settled impurities are collected in the bottom sludge collection hopper, which can be discharged by periodically opening the drain valve, ensuring continuous and stable purification. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a water purification device for a water conservancy project gate according to the present invention; Figure 2 This is a schematic diagram of the gate lifting assembly structure of a water purification device for a water conservancy project gate according to the present invention; Figure 3 This is a schematic diagram of the coarse filter anti-clogging component structure of a water purification device for a water conservancy project gate according to the present invention; Figure 4 This is a schematic diagram of the grid structure of a water purification device for a gate in a water conservancy project according to the present invention; Figure 5 This is a structural breakdown diagram of the coarse filter anti-clogging component of a water purification device for a water conservancy project gate according to the present invention; Figure 6 This is a schematic diagram of the cleaning structure of a gate water purification device for water conservancy projects according to the present invention; Figure 7 This is a schematic diagram of the fine filtration component structure of a water purification device for a water conservancy project gate according to the present invention; Figure 8 This is a cross-sectional view of the fine filtration component structure of a water purification device for a water conservancy project gate according to the present invention.

[0024] Figure label: 1. Dam; 2. Gate lifting assembly; 21. Support base; 22. Servo motor; 23. Steel cable; 24. Gate body; 3. Coarse filter anti-clogging assembly; 31. First drive motor; 32. First rotating shaft; 33. Grille; 34. Second rotating shaft; 35. Retrieval fork; 36. Support frame; 37. Second drive motor; 38. Sprocket; 39. Chain; 310. Sludge feeding hopper; 311. Connecting block; 312. Roller; 313. Sludge removal fork; 314. Limiting tube; 315. Moving rod; 316. Telescopic spring; 317. Cleaning brush; 318. Sludge guide plate; 319. Fine filter screen; 4. Fine filter assembly; 41. Treatment tank; 42. Inlet; 43. Spiral baffle; 44. Biological ring layer; 45. Zeolite layer; 46. Slow-release oxygen packing layer; 47. Drain outlet; 48. Sludge collection hopper; 49. Drain valve. Detailed Implementation

[0025] 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.

[0026] like Figures 1-8 As shown, this embodiment provides a technical solution: a water purification device for a gate in a water conservancy project, including a dam 1 and gate lifting components 2 installed on both sides of the dam 1. The gate lifting components 2 include a support base 21 connected to the dam 1, a servo motor 22 installed on the support base 21, a steel cable 23 installed at the output end of the servo motor 22, and a gate body 24 installed at the other end of the steel cable 23. The device also includes: The coarse filter anti-clogging component 3 includes a first drive motor 31 installed on the dam 1. A grid 33 is installed at the output end of the first drive motor 31, and a retrieval fork 35 is connected to the grid 33. A support frame 36 is connected to the side of the dam 1 near the grid 33. A second drive motor 37 is installed on the dam 1, and a sprocket 38 is connected to the output end of the second drive motor 37. A chain 39 is installed on the sprocket 38 and guided inside the support frame 36. Inside the trough, a sludge feeding hopper 310 is slidably connected to a support frame 36. A connecting block 311 is connected to the sludge feeding hopper 310 and is connected to a chain 39. A roller 312 is rotatably connected to the sludge feeding hopper 310 and is located in a guide groove inside the support frame 36. A cleaning fork 313 is connected to the sludge feeding hopper 310, and a cleaning brush 317 is installed on the sludge feeding hopper 310. A guide plate 318 is installed on the side of the dam 1 near the sludge feeding hopper 310. A fine filter screen 319 is installed on one side of the brush 317. In the gate lifting assembly 2 of the water purification device of this water conservancy project, the servo motor 22 drives the steel rope 23 to be wound and released through the take-up reel, driving the gate body 24 to move up and down along the embankment 1 to control the flow of water. After the coarse filter anti-clogging assembly 3 is activated, the first drive motor 31 drives the grid 33 to rotate, and the grid 33 intercepts large floating objects in the water. The second drive motor 37 drives the sprocket 38 to rotate, and the chain 39 drives the conveyor through the connecting block 311. The sludge hopper 310 moves along the guide groove of the support frame 36. The retrieval fork 35, in conjunction with the cleaning fork 313, simultaneously pushes the attached debris to the area of ​​the sludge hopper 310. When the chain 39 drives the sludge hopper 310 to rotate, the cleaning brush 317 simultaneously brushes the fine filter screen 319 to prevent clogging. The cleaned debris is discharged through the guide plate 318. Through the dual action of coarse and fine filtration, the water is purified, realizing the cycle cleaning of the grid 33 and the fine filter screen 319. The gate accurately controls the water flow, ensuring clean water flow and stable operation of the equipment.

[0027] like Figure 1 as well as Figures 3-4As shown, the output end of the first drive motor 31 is connected to a first rotating shaft 32, which is rotatably connected inside the dam 1. A second rotating shaft 34 is rotatably connected to the side of the dam 1 near the bottom. The two ends of the grid 33 are respectively mounted on the first rotating shaft 32 and the second rotating shaft 34. The grid 33 forms a rotatable filter structure through the first rotating shaft 32 and the second rotating shaft 34. After the first drive motor 31 starts, its output end drives the first rotating shaft 32 to rotate inside the dam 1. Since the two ends of the grid 33 are respectively mounted on the first rotating shaft 32 and the second rotating shaft 34 at the bottom of the dam 1, the second rotating shaft 34 rotates synchronously with the first rotating shaft 32, forming a stable rotational support. The grid 33 continues to rotate under the dual-shaft drive, and its grid structure rotates in the water flow. At the same time, it can efficiently intercept large floating objects and suspended impurities in the water. The rotational motion also prevents impurities from accumulating on the screen surface, allowing the intercepted impurities to be sent to the designated cleaning area as the screen rotates, laying the foundation for subsequent purification stages and ensuring the continuity and efficiency of the initial filtration of the water flow. The wastewater feeding hopper 310 is connected to a limiting tube 314, and a moving rod 315 is slidably connected inside the limiting tube 314. A telescopic spring 316 is installed inside the limiting tube 314. The limiting tube 314 on the wastewater feeding hopper 310 provides a stable sliding guide for the moving rod 315. The built-in telescopic spring 316 is always in a pre-tensioned state, generating a continuous elastic thrust on the moving rod 315. When the wastewater feeding hopper 310 moves with the chain 39, the telescopic spring 316 pushes the moving rod 315 along the limiting tube. 314 extends, allowing the top cleaning brush 317 to fit tightly against the surface of the fine filter screen 319 and the grid 33. The movement of the sludge feeding bucket 310 drives the cleaning brush 317 to move synchronously. The wear-resistant nylon bristles are adapted to the mesh depth, allowing them to penetrate deep into the filter pores to scrape away attached impurities. The elastic extension and retraction of the telescopic spring 316 buffers the contact pressure between the cleaning brush 317 and the filter screen, preventing scratches and ensuring uniform cleaning force at different locations, thus improving the cleaning effect. One end of the telescopic spring 316 is connected to the inside of the limiting tube 314, and the other end is connected to the moving rod 315. The cleaning brush 317 is mounted on the top of the moving rod 315. The bristles of the cleaning brush 317 are made of wear-resistant nylon and are the length adapted to the fine filter screen 319. The mesh depth is determined by the telescopic spring 316, one end of which is fixed inside the limiting tube 314, and the other end is connected to the moving rod 315. Through elastic deformation, it generates a continuous thrust, pushing the moving rod 315 to slide up and down along the limiting tube 314, thereby driving the cleaning brush 317 at the top to flexibly adjust its height. The cleaning brush 317 is made of wear-resistant nylon bristles, which are tough and not easily worn, have a long service life, and the bristle length is precisely matched to the mesh depth of the fine filter screen 319. During the cleaning process, it can penetrate deep into the mesh to thoroughly remove residual fine impurities. When the sludge feeding bucket 310 moves, the cleaning brush 317 generates relative friction with the filter screen. With the combination of the rigidity and elasticity of the bristles, it efficiently removes pollutants from the surface and pores of the filter screen, prevents the filter screen from clogging, and ensures smooth flow of filtered water. like Figure 1 as well as Figures 7-8As shown, a fine filter assembly 4 is installed on the side of the dam 1 away from the grid 33. The fine filter assembly 4 includes a treatment box 41 installed inside the dam 1. An inlet 42 is provided on the side of the treatment box 41 near the bottom. A spiral baffle 43 is installed inside the inlet 42. The treatment box 41 of the fine filter assembly 4 receives the water that has undergone preliminary filtration through the bottom inlet 42. When the water flows through, the spiral baffle 43 inside the inlet 42 causes the water to generate a rotating vortex. This vortex motion can enhance the centrifugal force of the water, causing the fine particles that are not completely intercepted in the water to gather to the outside of the water flow under the centrifugal force. At the same time, it prolongs the residence time of the water in the inlet 42 area, promoting the sedimentation of particles. The spiral baffle 43 can also disrupt the laminar flow state of the water, making the water more uniform. The water is distributed into the subsequent filtration layers of the treatment tank 41 to avoid insufficient filtration due to excessively fast local water flow, thus improving overall purification efficiency. A biological ring layer 44 is installed near the top of the treatment tank 41, a zeolite layer 45 is installed near the top of the biological ring layer 44, and a slow-release oxygen packing layer 46 is installed near the top of the zeolite layer 45. The biological ring layer 44, zeolite layer 45, and slow-release oxygen packing layer 46 are arranged sequentially from top to bottom within the treatment tank 41, forming a multi-layered synergistic purification system. After preliminary pretreatment, the water permeates upwards, first decomposing organic pollutants through the biological ring layer 44, then adsorbing harmful ions through the zeolite layer 45, and finally optimizing water quality through the slow-release oxygen packing layer 46. Each layer is tightly connected, and the decomposition products of the biological ring layer 44 can be... Subsequent layers further purify the water. The oxygen released by the slow-release oxygen packing layer 46 provides an aerobic environment for the microorganisms in the biological ring layer 44, improving biodegradation efficiency. Multiple layers stacked together achieve gradual and deep water purification. The biological ring layer 44 is formed by stacking multiple sets of hollow cylindrical biological rings with through-pores in the ring walls. The zeolite layer 45 uses activated zeolite particles, and the slow-release oxygen packing layer 46 is composed of porous ceramic particles loaded with calcium peroxide. The biological ring layer 44 is formed by stacking hollow cylindrical biological rings, and the through-pores in the ring walls increase the specific surface area, providing ample attachment sites for microorganisms. Microorganisms decompose organic pollutants in the water through metabolism. The activated zeolite particles in the zeolite layer 45 have abundant porosity and ion exchange capacity, which can efficiently adsorb harmful substances such as heavy metal ions and ammonia nitrogen. The slow-release oxygen packing layer 46... Porous ceramic particles loaded with calcium peroxide can slowly release oxygen, providing a continuous oxygen source for the aerobic microorganisms in the biological ring layer 44. Simultaneously, the pores of the ceramic particles can also adsorb some fine impurities. These three media work synergistically, each fulfilling its function, to enhance water purification. A drain outlet 47 is located at the top of the treatment tank 41 on the side furthest from the inlet 42. A sludge collection hopper 48 is located at the bottom of the treatment tank 41, with a drain valve 49 connected to one side. The purified water, after passing through multiple layers of filtration, accumulates at the top of the treatment tank 41 and is discharged through the drain outlet 47, furthest from the inlet 42. The location of the drain outlet 47 at the top ensures that the water fully passes through all filtration layers, guaranteeing the purification effect. Sedimented impurities in the water collect in the sludge collection hopper 48 at the bottom of the treatment tank 41 under gravity.The sludge collection hopper 48 is funnel-shaped, facilitating the centralized collection of impurities and preventing their accumulation. When the impurities in the sludge collection hopper 48 reach a certain amount, opening the drain valve 49 on one side allows the settled impurities to be quickly discharged from the treatment tank 41, preventing secondary pollution of the water body and ensuring the long-term stable operation of the treatment tank 41.

[0028] Working principle: like Figures 1-8 As shown, the gate purification device of this water conservancy project achieves precise water flow control and deep water purification through the coordinated operation of gate lifting control, dual filtration purification, and automatic anti-clogging cleaning. In the gate lifting component 2, the servo motor 22 drives the take-up reel to wind up and unwind the steel cable 23, driving the gate body 24 to move up and down along the embankment 1, controlling the water flow interruption and flow rate, and providing stable water flow conditions for the subsequent purification process. The coarse filtration anti-clogging component 3 undertakes the preliminary filtration and anti-clogging functions. After the first drive motor 31 starts, it drives the grid 33 through the first rotating shaft 32, which, together with the bottom second rotating shaft 34, forms a stable rotational support. The grid 33 holds... During continuous rotation, its grid structure efficiently intercepts large floating objects and suspended impurities in the water. The rotation prevents impurities from accumulating and delivers pollutants to the cleaning area. Simultaneously, the second drive motor 37 drives the sprocket 38 to rotate, and the chain 39 drives the waste hopper 310 to move along the guide groove of the support frame 36 through the connecting block 311. The retrieval fork 35 on the grid 33 and the cleaning fork 313 of the waste hopper 310 work together to push the debris attached to the grid surface into the waste hopper 310. When the waste hopper 310 moves, the telescopic spring 316 in the limiting tube 314 pushes the moving rod 315 to extend, allowing the top wear-resistant nylon cleaning brush 317 to extend. The fine filter screen 319 and the grid 33 are closely fitted together, and the waste hopper 310 simultaneously brushes away impurities in the filter screen pores. Elastic buffering prevents damage to the filter screen. The cleaned debris is discharged through the guide plate 318, achieving a cycle of cleaning between the grid 33 and the fine filter screen 319. The water after coarse filtration enters the fine filter assembly 4 for deep purification. The treatment tank 41 receives the water flow through the bottom inlet 42. The built-in spiral baffle 43 creates a rotating vortex in the water flow, using centrifugal force to promote the sedimentation of fine particles and optimize the water flow distribution. During the upward permeation process, the water sequentially passes through the biological ring layer 44, the zeolite layer 45, and the slow-release oxygen packing layer 46. The hollow cylindrical biological rings of the ring layer 44 provide attachment sites for microorganisms to decompose organic pollutants. The zeolite layer 45, composed of activated zeolite particles, adsorbs heavy metal ions and ammonia nitrogen. The porous ceramic particles loaded with calcium peroxide release oxygen, providing an aerobic environment for microorganisms and adsorbing impurities. The three media work together to achieve gradual water purification. The qualified water is discharged through the top drain outlet 47. The settled impurities are collected in the bottom sludge collection hopper 48 and discharged periodically through the drain valve 49 to avoid secondary pollution. The water flow regulation and water purification are carried out simultaneously. The automatic cleaning function ensures long-term stable operation of the equipment, and the multi-filtration system ensures that the effluent water quality meets the standards.

[0029] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A water purification device for a gate in a water conservancy project, comprising a dam (1) and gate lifting components (2) provided on both sides of the dam (1), wherein the gate lifting components (2) include a support base (21) connected to the dam (1), a servo motor (22) is installed on the support base (21), a steel rope (23) is provided at the output end of the servo motor (22), and a gate body (24) is provided at the other end of the steel rope (23), characterized in that, Also includes: A coarse filter anti-clogging component (3) includes a first drive motor (31) installed on a dam (1), a grid (33) at the output end of the first drive motor (31), a retrieval fork (35) connected to the grid (33), a support frame (36) connected to the side of the dam (1) near the grid (33), a second drive motor (37) installed on the dam (1), a sprocket (38) connected to the output end of the second drive motor (37), a chain (39) on the sprocket (38), and the chain (39) set in the inner guide groove of the support frame (36). A slidable hopper (310) is connected to the sludge feeding hopper (310), a connecting block (311) is connected to the sludge feeding hopper (310), the connecting block (311) is connected to the chain (39), a roller (312) is rotatably connected to the sludge feeding hopper (310), the roller (312) is set in the inner guide groove of the support frame (36), a cleaning fork (313) is connected to the sludge feeding hopper (310), a cleaning brush (317) is set on the sludge feeding hopper (310), a guide plate (318) is set on the side of the dam (1) near the sludge feeding hopper (310), and a fine filter screen (319) is set on the side of the dam (1) near the cleaning brush (317).

2. The water purification device for a water conservancy project gate according to claim 1, characterized in that: The output end of the first drive motor (31) is connected to a first rotating shaft (32), which is rotatably connected inside the dam (1). A second rotating shaft (34) is rotatably connected to the side of the dam (1) near the bottom. The two ends of the grid (33) are respectively set on the first rotating shaft (32) and the second rotating shaft (34). The grid (33) forms a rotatable filter structure through the first rotating shaft (32) and the second rotating shaft (34).

3. The water purification device for a water conservancy project gate according to claim 1, characterized in that: The sludge feeding hopper (310) is connected to a limiting tube (314), a moving rod (315) is slidably connected inside the limiting tube (314), and a telescopic spring (316) is provided inside the limiting tube (314).

4. A water purification device for a gate in a water conservancy project according to claim 3, characterized in that: One end of the telescopic spring (316) is connected to the inside of the limiting tube (314), and the other end of the telescopic spring (316) is connected to the moving rod (315). The cleaning brush (317) is installed on the top of the moving rod (315). The bristles of the cleaning brush (317) are made of wear-resistant nylon material and the length is adapted to the mesh depth of the fine filter screen (319).

5. A water purification device for a gate in a water conservancy project according to claim 1, characterized in that: A fine filter assembly (4) is provided on the side of the dam (1) away from the grid (33). The fine filter assembly (4) includes a treatment box (41) provided in the dam (1). An inlet (42) is provided on the side of the treatment box (41) near the bottom. A spiral baffle (43) is provided in the inlet (42).

6. A water purification device for a gate in a water conservancy project according to claim 5, characterized in that: A biological ring layer (44) is provided on the side near the top of the treatment box (41), a zeolite layer (45) is provided on the side near the top of the biological ring layer (44) in the treatment box (41), and a slow-release oxygen packing layer (46) is provided on the side near the top of the zeolite layer (45) in the treatment box (41).

7. A water purification device for a gate in a water conservancy project according to claim 6, characterized in that: The bio-ring layer (44) is formed by stacking multiple sets of hollow cylindrical bio-rings, with through holes in the ring wall. The zeolite layer (45) uses activated zeolite particles, and the slow-release oxygen filler layer (46) is composed of porous ceramic particles loaded with calcium peroxide.

8. A water purification device for a gate in a water conservancy project according to claim 5, characterized in that: A drain outlet (47) is provided on the top of the treatment tank (41) on the side away from the water inlet (42), and a sludge collection hopper (48) is provided at the bottom of the treatment tank (41). A drain valve (49) is connected to one side of the sludge collection hopper (48).

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