Quick disposal device suitable for tail water drainage outlet of three pools and two dams

Abstract

This invention discloses a rapid treatment device applicable to the tailrace discharge outlets of three pools and two dams, belonging to the field of wastewater treatment. The device includes a rigid packing frame bed installed in a channel. A fixed frame is installed on the top of the rigid packing frame bed, and floating plant islands for ecological restoration are arranged on the fixed frame. An aeration device is installed on one side of the rigid packing frame bed. This invention constructs a rigid packing frame bed to achieve vertical zoning, uses modified coiled packing to increase specific surface area and antibacterial performance, utilizes passive fans for self-induced turbulence and anti-clogging, and during high water periods, a front buffer zone is formed by the horizontal movement of the grid plates to dissipate energy and block debris. Lateral diversion and elastic abutment structures adaptively conform to the channel wall, improving erosion resistance and stability. It integrates aeration, microbial dosing, and floating plant islands to achieve integrated erosion resistance, sand prevention, anti-clogging, antibacterial, and ecological restoration, with simple operation and maintenance and strong adaptability.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a rapid treatment device suitable for the tailwater discharge outlets of three pools and two dams. Background Technology

[0002] The "three-pond, two-dam" process is widely used in aquaculture wastewater treatment. It includes equalization ponds, anaerobic ponds, aerobic ponds, and two-stage sedimentation ponds. The wastewater usually still contains a certain concentration of COD, ammonia nitrogen, and suspended solids, and direct discharge poses a risk of polluting natural water bodies.

[0003] In existing technologies, wastewater treatment mostly relies on constructed wetlands or ecological ponds, which occupy a large area, have a long purification cycle, are prone to clogging, and have poor adaptability to hydraulic shock. Biological beds are a type of bioreactor that is widely used in water treatment processes because they require full contact between solid, liquid, and gas. However, in the treatment of black and odorous water bodies, they are greatly affected by climate and other factors, and the purification effect is not ideal when relying solely on the action of microorganisms.

[0004] Existing flexible supports are prone to deformation under the action of water flow, resulting in a significant reduction in shear stress and insufficient power for water to penetrate into the biofilm, manifesting as membrane blockage; while elastic packing has good resistance to shock loads, its removal rate of COD and TP is limited; therefore, there is a need to develop a new treatment device that integrates rigid structure, phytoremediation and microbial enhancement. Summary of the Invention

[0005] The purpose of this invention is to provide a rapid treatment device suitable for the tailwater discharge outlets of three pools and two dams, in order to solve the problems existing in the prior art, such as high concentrations of residual COD, ammonia nitrogen and suspended solids in tailwater, large area occupied by artificial wetlands or ecological ponds, long purification cycle, easy clogging and poor adaptability to hydraulic shock, as well as the problems that existing biological beds are greatly affected by climate in black and odorous water bodies, flexible supports are easily deformed leading to membrane clogging, and elastic packing has limited removal rate of COD and TP.

[0006] The technical problem to be solved by the present invention can be achieved by the following technical solution: a rapid treatment device suitable for the tailwater discharge outlet of three pools and two dams, including a rigid filler frame bed installed in the channel, a fixed frame installed on the top of the rigid filler frame bed, floating islands for ecological restoration plants arranged on the fixed frame, and an aeration device installed on one side of the rigid filler frame bed. A partition frame is installed in the middle of the rigid packing frame bed. The interior of the rigid packing frame bed is divided into a packing area and a sand-prevention area from top to bottom by the partition frame. The packing area is filled with stacked curled packing. A microbial addition tank for regularly adding microbial inoculants to the packing area is installed on the top of the rigid packing frame bed. Several passive fan rollers are installed above the partition frame, and a sand-proof mat is installed on the outside of the sand-proof zone to prevent sediment from the bottom of the water body from entering the filler area.

[0007] Preferably, a protective mesh is provided between the top of the rigid packing frame bed and the fixed frame to prevent the loss of curled packing. Curved baffles are evenly distributed around the rigid packing frame bed, and multiple sets of curved baffles are connected by six-way connectors.

[0008] Preferably, the rigid packing frame bed is provided with a slotted frame on both sides, and a slotted plate is fitted on the outside of the slotted frame. The slotted plate is used to seal the installation gap between the rigid packing frame bed and the channel sidewall. Steel rods are fixedly installed on both the upper and lower sides of the slotted plate, and a limiting groove for sliding and limiting the steel rods is opened on the sidewall of the rigid packing frame bed. The rigid packing frame bed has servo motors installed on both sides of its top, and the top steel rod is internally threaded to a threaded rod. The servo motor is connected to the output end of the threaded rod.

[0009] Preferably, a grating plate is installed at the ends of the four steel rods, and a bottom wheel that mates with the bottom wall of the channel is installed at the bottom of the grating plate.

[0010] Preferably, a connecting shaft is installed inside the slotted plate, both ends of which extend outside the slotted plate and a gear is provided on its outer wall; a rack is embedded on the outer wall of the steel rod opposite to the gear, and the rack and gear are in a transmission engagement.

[0011] Preferably, the rigid packing frame bed has vertical rods on both sides, and the vertical rods are fixedly connected to two steel rods on the same side. Limiting plates are vertically installed on both sides of the rigid packing frame bed. Guide rods are also slidably provided on both sides of the rigid packing frame bed, and several vertical rods are installed between the guide rods and the vertical rods on the same side.

[0012] Preferably, a rack is embedded on one side of the vertical rod, a gear is provided on the other side of the vertical rod, a threaded rod is fixed in the middle of the gear, and the end of the threaded rod is rotatably engaged with the limiting plate. A movable rod is provided on the outer wall of the threaded rod, and the ends of multiple sets of movable rods are connected to a positioning plate.

[0013] Preferably, a plurality of guide posts are slidably provided on the side wall of the positioning plate, and a reinforcing plate is installed at the ends of the plurality of guide posts.

[0014] Preferably, a thrust spring is fitted on the outer wall of the guide post located between the positioning plate and the reinforcing plate.

[0015] Preferably, a plurality of inner guide blocks are installed on the side wall of the positioning plate, and an outer guide sleeve is slidably provided on the outer side of the inner guide block, and the outer guide sleeve is connected to the limiting plate.

[0016] Compared with the prior art, the beneficial effects of this application are as follows: 1. This invention uses six-way connectors to assemble curved baffles, constructing an integral rigid packing frame bed to improve the overall structural resistance to water flow impact; a partition frame is installed in the inner cavity to precisely divide the packing area and sand prevention area vertically, and a sand prevention pad is provided at the bottom to achieve vertical isolation and zoned control of sediment; the packing area uses modified curled packing with grafted quaternary ammonium salt functional layer to improve specific surface area, biocompatibility and contact antibacterial performance; a passive fan reel is installed on the upper part of the partition frame, which spontaneously turbulents the water flow based on the potential energy of the water flow to prevent packing blockage and enhance three-phase mass transfer; it integrates lateral aeration and oxygenation, top-directed addition of microorganisms and ecological restoration of floating plant islands, to achieve integrated structural impact resistance, sand prevention zoning, passive anti-blocking, biochemical antibacterial, and ecological restoration, adaptable to rapid channel deployment, highly adaptable to working conditions, and easy to operate and maintain.

[0017] 2. This invention uses a servo motor to drive a threaded transmission to move the grating plate in a controlled manner. During the high water season, the distance between the grating plate and the rigid packing frame bed can be actively increased to form a front buffer zone on the water-facing side. The buffer zone is used to dissipate and reduce the energy of the surging waves, thereby reducing the frontal impact on the curved baffle plate. At the same time, the grating plate intercepts debris and large pieces of silt in front of the water, preventing the water passages of the curved baffle plate from being blocked and silted up, thus reducing the risk of the biological bed slipping.

[0018] 3. This invention adds a connecting shaft and a gear inside the slotted plate, and sets a rack on the steel rod. By using the outward movement of the steel rod, the rack and gear mesh to drive the slotted plate to rotate around the connecting shaft and open the installation gaps on both sides. While the grid plate forms a front buffer zone, it also realizes lateral diversion and pressure relief, and guides some water to flow out from the gaps on both sides, effectively alleviating the water backlog phenomenon, reducing the impact force of water flow on the overall device, and improving the stability of operation during the high water period.

[0019] 4. This invention relies on the outward movement of the steel rod to drive the synchronous displacement of the linkage vertical rod and the vertical rod. Through the meshing transmission of rack two and gear two, the threaded rod two is driven to rotate, which drives the moving rod to push the positioning plate outward. Utilizing the elastic clamping structure composed of the positioning plate, guide column, thrust spring and reinforcing plate, it adaptively squeezes and fits against the channel sidewall. Based on the lateral diversion and discharge in embodiment three, it simultaneously realizes the adaptive fixing position on both sides of the device, offsetting the influence of lateral high-speed water flow disturbance and improving the overall placement stability of the biological bed under the working conditions of the flood season. Attached Figure Description

[0020] Figure 1 This is a perspective view of the external structure of the device (biological bed) installed in the channel in this invention.

[0021] Figure 2 This is a perspective view of the overall front structure of the device in this invention.

[0022] Figure 3 This is a perspective view of the overall rear structure of the device in this invention.

[0023] Figure 4 This is a three-dimensional view of the connection relationship between the rigid packing frame bed and the steel rod in this invention.

[0024] Figure 5 yes Figure 4 Enlarged 3D view of the structure of region A in the image.

[0025] Figure 6 This is a perspective view of the connection relationship between gear 1, rack 1, gap frame, and gap plate in this invention.

[0026] Figure 7 This is a perspective view of the connection relationship between the vertical rod and the steel rod of the present invention.

[0027] Figure 8 The internal three-dimensional structure of the rigid packing frame bed in this invention Figure 1 .

[0028] Figure 9 The internal three-dimensional structure of the rigid packing frame bed in this invention Figure 2 .

[0029] Figure 10 The internal three-dimensional structure of the rigid packing frame bed in this invention Figure 3 .

[0030] Figure 11 This is a schematic diagram of the physical structure of the coiled filler in this invention.

[0031] Explanation of reference numerals in the attached figures: 11. Grating; 12. Steel rod; 13. Gap frame; 14. Gap plate; 15. Threaded rod one; 16. Rack one; 17. Gear one; 18. Connecting shaft; 19. Bottom wheel; 21. Rigid packing frame bed; 22. Fixed frame; 23. Microbial addition tank; 24. Separating frame; 25. Passive fan reel; 26. Aeration device; 27. Protective netting; 28. Curved baffle; 31. Vertical rod; 32. Guide rod; 33. Vertical rod; 34. Rack two; 35. Gear two; 36. Threaded rod two; 37. Moving rod; 38. Positioning plate; 39. Reinforcing plate; 310. Guide column; 311. Thrust spring; 312. Outer guide sleeve; 313. Inner guide block. Detailed Implementation

[0032] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0033] Example 1 The existing aquaculture wastewater from the three ponds and two dams still contains pollutants such as COD, ammonia nitrogen, and suspended solids. Direct discharge of these wastewaters can easily pollute natural water bodies. Traditional wastewater treatment facilities have large footprints, long purification cycles, are prone to clogging, and have poor adaptability to hydraulic shock. Conventional biological beds rely solely on the action of microorganisms for limited purification effects. Flexible supports are prone to deformation, which can cause biofilm blockage. Ordinary packing materials are insufficient for removing pollutants.

[0034] like Figure 1-3 8-11 In this embodiment, a rapid treatment device applicable to the tailwater discharge outlet of three pools and two dams includes a rigid filler frame bed 21 installed in the channel, a fixed frame 22 installed on the top of the rigid filler frame bed 21, plant floating islands for ecological restoration arranged on the fixed frame 22, and an aeration device 26 installed on one side of the rigid filler frame bed 21. A partition frame 24 is installed in the middle of the rigid packing frame bed 21. The interior of the rigid packing frame bed 21 is divided into a packing area and a sand prevention area from top to bottom through the partition frame 24. The packing area is filled with stacked curled packing. A microbial addition tank 23 for adding microbial inoculants to the packing area is installed on the top of the rigid packing frame bed 21. Several passive fan rollers 25 are installed above the partition frame 24, and a sand-proof mat is installed on the outside of the sand-proof zone to prevent sediment from the bottom of the water body from entering the filler area.

[0035] A protective mesh 27 for preventing the loss of curled packing is provided between the top of the rigid packing frame bed 21 and the fixed frame 22. Curved baffles 28 are evenly distributed around the rigid packing frame bed 21, and multiple sets of curved baffles 28 are connected by six-way connectors.

[0036] The working principle of rapid treatment of tailwater discharge outlets: such as Figure 1-38-11. This modular device is installed along the flow path of the channel's tailwater outlet. After being guided and buffered by the curved baffle 28, the tailwater smoothly flows into the vertical space of the rigid packing frame bed 21. The silt at the bottom of the channel is intercepted and blocked by the bottom sand-proof mat, limiting its accumulation to the sand-proof zone and preventing it from intruding upwards into the packing area. The aeration device 26 is installed on the outer side of the rigid packing frame, simultaneously introducing airflow and water flow into the space enclosed by the curved baffle 28 through multiple air outlets, increasing dissolved oxygen in the water and driving directional circulation of the water within the installation space. The potential energy of the incoming water flow drives the aeration device... The passive rotation of the dynamic fan reel 25 disturbs the flow field throughout the packing area, eliminating dead zones and inhibiting excessive biofilm adhesion and caking. The microbial addition tank 23 adds special bacteria as needed, forming a gas-liquid-solid three-phase mass transfer reaction system with the modified curled packing, achieving adsorption, antibacterial and biodegradation synergistic treatment of COD, ammonia nitrogen and suspended solids in the effluent. The top plant floating island relies on the roots of aquatic plants to further adsorb nutrients and enhance the restoration of the rhizosphere microecology. After multi-stage purification, the effluent is discharged into the downstream channel, realizing on-site rapid and deep purification of the effluent from the three pools and two dams.

[0037] It should be emphasized that the core improvement of this embodiment lies in: using six-way connectors to assemble curved baffles 28 to construct an integral rigid packing frame bed 21, thereby improving the overall structural resistance to water flow impact; using a partition frame 24 installed in the inner cavity to precisely divide the packing area and sand prevention area vertically, and using a sand prevention pad at the bottom to achieve vertical barrier and zoned control of sediment; using modified curled packing with grafted quaternary ammonium salt functional layers in the packing area to improve specific surface area, biocompatibility and contact antibacterial performance; installing passive fan rollers 25 on the upper part of the partition frame 24 to spontaneously turbulent the water flow based on the potential energy of the water flow, preventing packing blockage and enhancing three-phase mass transfer; and integrating lateral aeration, top-directed microbial addition and plant floating island ecological restoration.

[0038] It should be noted that, such as Figure 11 The aeration device 26 is fixed 20-40cm away from one side of the rigid packing frame bed 21, and introduces water and air into the interior of the arc-shaped baffle 28 through multiple air outlets; the individual units of the coiled packing have a three-dimensional coiled mesh structure, and its matrix is ​​composed of surface-modified polyurethane, with a quaternary ammonium salt functional layer with a permanent positive charge grafted on the surface of the modified polyurethane.

[0039] It should be noted that, such as Figure 2-3 10. The curved baffle 28 has a curved surface structure with its curvature facing the inside of the rigid packing frame bed 21. It is used to guide and buffer the water flow. The six-way connector allows the plate to be connected in six directions in three-dimensional space to improve the overall rigid packing frame bed 21's resistance to water flow impact and structural stability.

[0040] It should be noted that, such as Figure 1-39-10. The top of the rigid packing frame bed 21 is covered with a corrosion-resistant protective net 27. The protective net 27 covers the open position at the top of the packing area, which can prevent the curled packing from being disturbed by water flow and air flow and dissipate outward, while allowing the roots of the plant floating islands to penetrate downward into the water.

[0041] It should be noted that, such as Figure 8-9 The fan reel is positioned above the partition frame 24 and below the packing area. It achieves passive rotation without power by using the lateral water flow impact introduced by the arc-shaped baffle 28. The rotation disturbance can continuously refresh the flow field in the packing area, break up local stagnant dead zones, weaken the local over-accumulation of biofilm, and reduce the probability of packing caking and pore blockage.

[0042] The rigid filler frame bed 21 is installed by self-weight and is hoisted and placed on the leveled and hardened installation base at the bottom of the channel. The sand-proof mat is laid flat to cover the entire sand-proof area, forming a bottom physical barrier layer to intercept coarse particles of mud and silt at the bottom of the channel, so that the mud and sand are confined to the lower part of the sand-proof area and prevented from intruding into the upper filler installation area.

[0043] Example 2 It is understandable that in Embodiment 1, no front-end debris barrier structure was set up. Even though the existing technology can use the grid plate 11 to intercept floating objects such as tree branches, large pieces of floating debris and a large amount of silt in the water flow, the impact force of the surging waves during the high water period is large. Directly impacting the curved baffle plate 28 may pose a risk of biological bed slippage and exacerbate the blockage of the pores of the curved baffle plate 28 by fine silt.

[0044] like Figures 4 to 6 To solve the above problems, a slotted frame 13 is provided on both sides of the rigid packing frame bed 21, and a slotted plate 14 is fitted on the outside of the slotted frame 13. The slotted plate 14 is used to seal the installation gap between the rigid packing frame bed 21 and the channel side wall. Steel rods 12 are fixedly installed on both the upper and lower sides of the slotted plate 14. A limiting groove for sliding limit of the steel rods 12 is opened on the side wall of the rigid packing frame bed 21. Servo motors are installed on both sides of the top of the rigid packing frame bed 21. A threaded rod 15 is internally threaded to the top steel rod 12, and the servo motor is connected to the output end of the threaded rod 15.

[0045] The ends of the four steel rods 12 are all fitted with a grating plate 11, and the bottom of the grating plate 11 is fitted with a bottom wheel 19 that mates with the bottom wall of the channel. Slot frames 13 and slot plates 14 are set on both sides of the rigid filler frame bed 21 to seal the installation gap between the frame bed and the side wall of the channel.

[0046] Working principle: Under normal operating conditions, the grating plate 11 is installed close to the rigid packing frame bed 21. When the flood season arrives, the water level rises, and the sediment content of the water increases, the servo motors on both sides are started, and the servo motors drive the threaded rod 15 to rotate synchronously. The threaded rod 15 and the top steel rod 12 form a threaded transmission engagement. The steel rod 12 is subject to the sliding constraint of the limiting groove on the side wall of the rigid packing frame bed 21, which converts the rotational motion into linear translational motion. The four steel rods 12 synchronously drive the grating plate 11 to move horizontally away from the rigid packing frame bed 21, automatically expanding the distance between the grating plate 11 and the frame bed, forming a front buffer area on the water-facing side of the biological bed. The buffer area is used to dissipate water flow energy and reduce waves, weakening the frontal impact of the flood surge on the curved baffle 28 during the flood season. At the same time, the grating plate 11 intercepts tree branches, floating debris, and large pieces of silt in front, preventing them from directly blocking the water passages of the curved baffle 28.

[0047] It should be emphasized that the core improvement of this embodiment is that the servo motor drives the screw transmission to move the grating plate 11 in a controlled manner, which can actively increase the distance between the grating plate 11 and the rigid packing frame bed 21 during the high water period, forming a front buffer area on the water-facing side. The buffer area is used to dissipate and reduce the energy of the surging waves, thereby reducing the frontal impact on the curved baffle plate 28. At the same time, the grating plate 11 intercepts debris and large pieces of silt in front, preventing the water passage of the curved baffle plate 28 from being blocked and silted up, thus reducing the risk of the biological bed slipping.

[0048] Example 3 It is understandable that in Embodiment 2, the slotted plate 14 only serves to fix and block the installation gap of the channel side wall. After the grid plate 11 moves outward to form a buffer zone, the installation gap on both sides of the biological bed of the device is still closed. During the high water season, the large flow of water can only flow into the device from the water-facing side. The water flow is large and there is no lateral discharge channel. There is still the problem of the water flow continuously hitting and impacting the whole device and the water body backing up and rising.

[0049] like Figures 4 to 6 To solve the above problems, a connecting shaft 18 is installed inside the clamping plate 14. Both ends of the connecting shaft 18 extend outside the clamping plate 14 and gears 17 are arranged on its outer wall. A rack 16 is embedded on the outer wall of the steel rod 12 opposite to the gears 17, and the rack 16 and gears 17 are in a transmission engagement.

[0050] Working principle: such as Figure 6Under normal operating conditions, the slotted plate 14 remains sealed, closing the installation gap between the rigid packing frame bed 21 and the channel sidewall, ensuring that all water flows into the internal purification area through the water-facing side of the device, avoiding short-circuiting of the water flow and affecting the purification effect. During the high-flow and high-wave conditions of the peak water period, the steel rod 12 moves horizontally with the grid plate 11. During the movement of the steel rod 12, it relies on the meshing transmission of the outer wall rack-16 and gear-17 to drive the slotted plate 14 to rotate and flip around the connecting shaft 18 as the axis; thus automatically opening the originally closed lateral installation gap, allowing some water in the channel to be discharged and diverted laterally through the gaps on both sides of the device.

[0051] It should be emphasized that the core improvement of this embodiment is as follows: a connecting shaft 18 and a gear 17 are added inside the slotted plate 14, and a rack 16 is fitted on the steel rod 12. By using the outward movement of the steel rod 12, the rack 16 and the gear 17 mesh and drive the slotted plate 14 to rotate around the connecting shaft 18 to open the installation gaps on both sides. While the grid plate 11 forms a front buffer zone, it realizes lateral diversion and pressure relief, and guides some water flow out from the gaps on both sides, effectively alleviating the water backlog phenomenon, reducing the impact force of the water flow on the overall device, and improving the operational stability during the high water period.

[0052] Example 4 It is understandable that in Embodiment 3, although the lateral installation gap can be opened by rotating the slotted plate 14 to achieve lateral diversion and pressure relief during the high water period, the device as a whole relies solely on its own weight to sit and simple lateral limiting to achieve fixation. During the high water period, the water flow velocity is fast and the lateral discharge volume is large. The high-speed water flow in the installation gap is prone to continuously sucking and disturbing both sides of the device, resulting in a decrease in the overall stability of the device and easy displacement and shaking.

[0053] like Figure 7 To solve the above problems, vertical rods 31 are provided on both sides of the rigid packing frame bed 21. The vertical rods 31 are fixedly connected to two steel rods 12 on the same side. Limiting plates are vertically installed on both sides of the rigid packing frame bed 21. Guide rods 32 are also slidably provided on both sides of the rigid packing frame bed 21. Several vertical rods 33 are installed between the guide rods 32 and the vertical rods 31 on the same side.

[0054] A rack 34 is embedded on one side of the vertical rod 33, and a gear 35 is arranged on the other side of the vertical rod 33. A threaded rod 36 is fixed in the middle of the gear 35, and the end of the threaded rod 36 is rotatably engaged with the limiting plate. A movable rod 37 is provided on the outer wall of the threaded rod 36, and the ends of multiple movable rods 37 are connected to a positioning plate 38.

[0055] A number of guide posts 310 are slidably provided on the side wall of the positioning plate 38, and a reinforcing plate 39 is installed at the ends of the guide posts 310.

[0056] A thrust spring 311 is fitted on the outer wall of the guide post 310 located between the positioning plate 38 and the reinforcing plate 39.

[0057] Several inner guide blocks 313 are installed on the side wall of the positioning plate 38. An outer guide sleeve 312 is slidably provided on the outer side of the inner guide block 313, and the outer guide sleeve 312 is connected to the limiting plate.

[0058] Working principle: such as Figure 7 As the steel rod 12 moves outward to form a buffer zone, the steel rod 12 drives the vertical rod 31 to move outward, and drives the vertical rod 33 to move outward. When the rack 34 and gear 35 are engaged, the gear 35 is driven to rotate, causing the threaded rod 36 to rotate and drive the rod 37 outward, moving the positioning plate 38 outward and controlling the reinforcing plate 39 to further compress the channel, thereby strengthening the stability of the biological bed between the channels and preventing the water flow in the gap between the two sides of the biological bed from flowing rapidly and affecting the stability of the biological bed.

[0059] It should be emphasized that the core improvement of this embodiment is that: the outward movement of the steel rod 12 causes the linkage vertical rod 31 and the vertical rod 33 to move synchronously, and the threaded rod 36 is driven to rotate through the meshing transmission of the rack 34 and the gear 35, which drives the moving rod 37 to push the positioning plate 38 outward; using the elastic pressing structure composed of the positioning plate 38, the guide column 310, the thrust spring 311 and the reinforcing plate 39, it adaptively squeezes and fits against the side wall of the channel. On the basis of the lateral diversion and discharge in Embodiment 3, it simultaneously realizes the adaptive fixing position on both sides of the device, offsets the influence of lateral high-speed water flow disturbance, and improves the overall placement stability of the biological bed under the working conditions of the flood season.

[0060] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed application.

Claims

1. A rapid treatment device suitable for the tailrace drainage outlets of three pools and two dams, characterized in that, The system includes a rigid packing frame bed (21) installed in the channel, with a fixed frame (22) installed on the top of the rigid packing frame bed (21), and plant floating islands for ecological restoration arranged on the fixed frame (22). An aeration device (26) is installed on one side of the rigid packing frame bed (21). A partition frame (24) is installed in the middle of the rigid packing frame bed (21). The interior of the rigid packing frame bed (21) is divided into a packing area and a sand prevention area from top to bottom by the partition frame (24). The packing area is filled with rolled packing. A microbial addition tank (23) for adding microbial strains to the packing area is installed on the top of the rigid packing frame bed (21). Several passive fan rollers (25) are installed above the partition frame (24), and a sand-proof mat is installed on the outside of the sand-proof zone to prevent sediment from the bottom of the water body from entering the filler area.

2. The rapid treatment device for the tailrace drainage outlet of a three-pond, two-dam system as described in claim 1, characterized in that, A protective mesh (27) for preventing the loss of curled packing is provided between the top of the rigid packing frame bed (21) and the fixed frame (22). Arc-shaped baffles (28) are evenly distributed around the rigid packing frame bed (21), and multiple sets of arc-shaped baffles (28) are connected by six-way connectors.

3. The rapid treatment device for the tailrace drainage outlet of the three pools and two dams as described in claim 1, characterized in that, The rigid packing frame bed (21) is provided with a slotted frame (13) on both sides. A slotted plate (14) is fitted on the outside of the slotted frame (13). The slotted plate (14) is used to seal the installation gap between the rigid packing frame bed (21) and the channel side wall. Steel rods (12) are fixedly installed on both the upper and lower sides of the slotted plate (14). A limiting groove for sliding limit of the steel rods (12) is opened on the side wall of the rigid packing frame bed (21). Servo motors are installed on both sides of the top of the rigid packing frame bed (21), and the steel rod (12) at the top is internally threaded to a threaded rod (15), and the servo motor is connected to the output end of the threaded rod (15).

4. The rapid treatment device for the tailrace drainage outlet of the three pools and two dams as described in claim 3, characterized in that, The ends of the four steel rods (12) are jointly fitted with a grating plate (11), and the bottom of the grating plate (11) is fitted with a bottom wheel (19) that cooperates with the bottom wall of the channel.

5. The rapid treatment device for the tailrace drainage outlet of the three pools and two dams as described in claim 4, characterized in that, The connecting shaft (18) is installed inside the clamping plate (14). Both ends of the connecting shaft (18) extend outside the clamping plate (14) and a gear (17) is arranged on its outer wall. A rack (16) is embedded on the outer wall of the steel rod (12) opposite to the gear (17), and the rack (16) and the gear (17) are in a transmission cooperation.

6. The rapid treatment device for the tailrace discharge outlet of a three-pond, two-dam system as described in claim 5, characterized in that, The rigid packing frame bed (21) is provided with vertical rods (31) on both sides. The vertical rods (31) are fixedly connected to two steel rods (12) on the same side. Limiting plates are vertically installed on both sides of the rigid packing frame bed (21). Guide rods (32) are also slidably provided on both sides of the rigid packing frame bed (21). Several vertical rods (33) are installed between the guide rods (32) and the vertical rods (31) on the same side.

7. The rapid treatment device for the tailrace drainage outlet of a three-pond, two-dam system as described in claim 6, characterized in that, A rack (34) is embedded on one side of the vertical rod (33), and a gear (35) is arranged on the other side of the vertical rod (33). A threaded rod (36) is fixed in the middle of the gear (35), and the end of the threaded rod (36) is rotatably engaged with the limiting plate. A movable rod (37) is provided on the outer wall of the threaded rod (36), and the ends of multiple sets of movable rods (37) are connected to a positioning plate (38).

8. The rapid treatment device for the tailrace discharge outlet of the three pools and two dams as described in claim 7, characterized in that, The positioning plate (38) has several guide posts (310) slidably mounted on its side wall, and the ends of the several guide posts (310) are jointly fitted with a reinforcing plate (39).

9. The rapid treatment device for the tailrace discharge outlet of a three-pond, two-dam system as described in claim 8, characterized in that, A thrust spring (311) is fitted on the outer wall of the guide post (310) located between the positioning plate (38) and the reinforcing plate (39).

10. The rapid treatment device for the tailrace discharge outlet of a three-pond, two-dam system as described in claim 9, characterized in that, A plurality of inner guide blocks (313) are installed on the side wall of the positioning plate (38), and an outer guide sleeve (312) is slidably provided on the outer side of the inner guide block (313), and the outer guide sleeve (312) is connected to the limiting plate.

Images