Sludge dewatering device for ecological management of water conservancy river channel

Abstract

The invention provides a sludge dewatering device for water conservancy river ecological management, and relates to the technical field of water conservancy project and river ecological management. The mounting bottom plate is mounted in ship body equipment, and the supporting frame is fixedly mounted at the upper end of the mounting bottom plate; the upper end of the supporting frame is of an inclined face structure inclining towards the lower portion of one side, and an inclined frame is fixedly installed on the inclined face structure of the supporting frame. A dewatering box with an upward opening end is fixedly mounted at the upper end of the inclined frame; a floating platform is arranged on one side of the mounting bottom plate and located in the water surface. A sludge mixing box is mounted at the upper end of the floating platform. The floating platform is in sliding fit with a hanging pin of the supporting frame through a movable strip hole in a connecting arm and is matched with a stable row, extending into water, at the bottom of the floating platform, so that the floating platform can adapt to water surface fluctuation, wind wave impact is effectively buffered, and a dynamic and stable working platform is provided for a sludge pumping box and a sludge mixing box; and continuity and reliability of mud pumping and mixing operation are ensured.

Description

Technical Field

[0001] This invention relates to the field of water conservancy engineering and river ecological management technology, and in particular to a sludge dewatering device for water conservancy and river ecological management. Background Technology

[0002] With increasingly stringent environmental protection requirements, the effective treatment and resource utilization of river silt has become a crucial issue. Rivers that are not dredged for extended periods accumulate large amounts of silt at their bottoms, containing organic matter, microorganisms, and pollutants. This not only affects the river's flood control capacity but also leads to eutrophication and damages the aquatic ecosystem. Currently, the treatment of river silt typically involves multiple stages, including dredging, transportation, dewatering, and disposal. Existing sludge dewatering equipment is mostly designed as land-based fixed systems, requiring the dredged silt to be transported by vehicles to the treatment site. This process is cumbersome, requires a large area, and is prone to secondary pollution during transportation. Some treatment devices applicable to water are often simple in structure and have limited function, only achieving preliminary sedimentation or filtration. Their dewatering efficiency is low, and the treated silt still has a high water content, making it difficult to meet the requirements for subsequent resource utilization or harmless landfill disposal. Furthermore, in aquatic operating environments, the relative movement between the vessel and the treatment platform affects the stability and reliability of the equipment, and existing technologies lack effective adaptive connection structures. In the pretreatment stage of sludge, conventional mixing equipment is difficult to fully and uniformly condition high-viscosity sludge, and the conditioner cannot effectively blend with the sludge, which directly affects the subsequent dewatering effect. Summary of the Invention

[0003] This invention relates to a sludge dewatering device for ecological management of water conservancy and river channels. It integrates sludge pumping, mixing, and dewatering functions into one unit and can operate stably in aquatic environments. It has outstanding advantages such as high treatment efficiency, good dewatering effect, strong adaptability, and stable operation. It has important practical value for improving the mechanization level and treatment effect of ecological management of water conservancy and river channels.

[0004] This invention provides a sludge dewatering device for ecological management of water conservancy and river channels, specifically comprising: a mounting base plate; the mounting base plate is installed in the equipment of a ship hull, and a support frame is fixedly installed on the upper end of the mounting base plate; the upper end of the support frame is an inclined structure sloping downward to one side, and an inclined frame is fixedly installed on the inclined structure of the support frame; a dewatering tank with its opening end facing upward is fixedly installed on the upper end of the inclined frame; a floating platform is provided on one side of the mounting base plate, and the floating platform is in the water surface; a sludge mixing tank is installed on the upper end of the floating platform; a sludge pumping tank is fixedly hung on the side of the sludge mixing tank away from the dewatering tank; a sludge pumping pump is provided below the sludge pumping tank, and the sludge pumping ...

[0005] Optionally, hanging pins are vertically provided on the outer side wall of the vertical support square tube at one end of the support frame near the floating platform.

[0006] Optionally, the inclined frame is provided with a mud discharge slide at the high edge of the end away from the floating platform, and the mud discharge slide is set corresponding to the dewatering single box.

[0007] Optionally, a ceramic filter plate is provided at the bottom of the inner cavity of the dehydration tank, and an inclined frame is provided below the ceramic filter plate. A long plate for draining water to a lower position is provided in the inclined frame, and a drain pipe is provided at the bottom end of the inclined frame. The upper part of the ceramic filter plate is connected to the lower end of the inner cavity of the dehydration tank.

[0008] Optionally, the bottom cavity of the floating platform is provided with a row of stabilizing blocks; the left and right side walls of the floating platform near the support frame are respectively rotatably connected by pins, and the other end of the connecting arm is provided with a strip-shaped movable slot, and the hanging pin on the support frame is slidably placed in the movable slot.

[0009] Optionally, a mixing motor is fixedly installed on the upper support plate of the sludge mixing box, and a mixing shaft is vertically rotatably installed in the sludge mixing box. The upper end of the mixing shaft is fixedly connected to the rotating shaft of the mixing motor through a coupling. A lower scraper is fixedly installed at the position where the lower end of the mixing shaft contacts the bottom of the inner cavity of the sludge mixing box. The lower scraper is composed of six-bladed inclined blades arranged in a ring. An upper pusher plate is provided at the upper end of the mixing shaft. The upper pusher plate is composed of six-bladed vertical blades arranged in a ring. A vertical intermediate mixing plate is fixedly installed on the mixing shaft between the lower scraper and the upper pusher plate. The bottom of the intermediate mixing plate has vertical comb teeth at the staggered left and right edges. The middle opening of the intermediate mixing plate has vertically spaced evenly spaced cutting strips. An outwardly expanding overflow weir is provided on the side of the upper end of the sludge mixing box near the dewatering box. The overflow weir is connected to the dewatering box through a connecting pipe.

[0010] Optionally, the bottom of the inner cavity of the sludge suction box and the sludge mixing box is provided with a communication port, and the bottom of the inner cavity of the sludge suction box is also provided with a guide platform that slopes downward toward the communication port.

[0011] Optionally, the lower end of the sludge pump is provided with a suction pipe that extends into the silt in the river channel, and the upper end of the sludge pump is provided with a discharge pipe that extends into the inner cavity of the sludge tank. The upper end of the discharge pipe is higher than the upper end of the guide platform.

[0012] Optionally, one end of the dewatering box corresponding to the sludge discharge slide is the sludge outlet, a lifting shaft is rotatably installed in the dewatering box, a lifting motor is provided at one end of the lifting shaft, a spiral auger is fixedly provided on the lifting shaft in the inner cavity of the dewatering box, and an exhaust pipe is provided at the upper end of the dewatering box near the high end.

[0013] This invention provides a sludge dewatering device for ecological management of water conservancy and river channels, which has the following beneficial effects: Firstly, in terms of operation mode and stability, the device fixes the mounting base plate to the hull, enabling mobile water operations and avoiding long-distance transport of sludge. At the same time, the floating platform slides with the pins of the support frame through the movable slots on the connecting arm, and with the stabilizing chute at the bottom of the floating platform extending into the water, the floating platform can adapt to water surface fluctuations, effectively buffering the impact of wind and waves, and providing a dynamically stable working platform for the sludge pumping box and sludge mixing box, ensuring the continuity and reliability of sludge pumping and mixing operations. Secondly, in terms of sludge conditioning, the sludge mixing tank features an innovative combined stirring structure driven by a mixing motor: the upper push plate prevents material from floating and splashing, the middle mixing plate efficiently shears, disperses, and mixes the sludge through comb teeth and cutting strips, and the lower scraper closely scrapes the bottom of the tank to prevent sedimentation. The three work together to significantly improve the mixing uniformity of the sludge and conditioning agent, laying a solid foundation for subsequent efficient dewatering. The overflow weir on the upper side of the tank can promptly separate the supernatant during the mixing process, achieving preliminary solid-liquid separation and reducing the burden on subsequent dewatering. Furthermore, in the core dewatering stage, the device employs a multi-stage dewatering tank structure arranged side-by-side along an inclined plane. Combined with ceramic filter plates at the bottom of the tanks, primary filtration and dewatering are achieved firstly using gravity. Subsequently, a lifting motor inside each tank drives a spiral auger to rotate, performing secondary deep dewatering by squeezing the sludge along the inclined plane from lower to higher elevations. This combination of gravity and mechanical squeezing significantly improves dewatering efficiency and reduces the moisture content of the sludge cake. The dewatered sludge cake is discharged systematically through a sludge discharge chute for easy collection; and the gas generated during dewatering is promptly discharged through an exhaust pipe, ensuring the safety and stability of the equipment operation. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0015] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0016] In the attached diagram: Figure 1 A schematic diagram of the first axial view structure of the present invention is shown; Figure 2 A schematic diagram of the second axial view structure of the present invention is shown; Figure 3 A schematic diagram of the third axial view structure of the present invention is shown; Figure 4 This shows an axial view of the dehydration tank of the present invention in the state of having one side plate removed; Figure 5 This diagram shows a schematic axial view of the dehydration single-tank semi-sectioned structure of the present invention. Figure 6 The present invention is shown Figure 5 Schematic diagram of the A-section structure; Figure 7 This diagram shows a partially sectional axial view of the sludge mixing tank and sludge suction tank of the present invention. Figure 8 A schematic diagram of the hybrid shaft portion of the present invention is shown.

[0017] List of reference numerals in the attached diagram: 1. Install the base plate; 2. Support frame; 201. Hanging pin; 3. Inclined frame; 301. Mud removal slide; 4. Dehydration tank; 401. Ceramic filter plate; 5. Floating platform; 501. Connecting arm; 502. Movable slot; 503. Stabilizing liner; 6. Sludge mixing tank; 601. Mixing motor; 602. Mixing shaft; 603. Overflow weir; 604. Upper push plate; 605. Lower scraper; 606. Intermediate mixing plate; 6061. Cutting strip; 6062. Comb teeth; 7. Sludge suction box; 701. Inner guide platform; 702. Connecting port; 8. Mud pump; 801. Suction pipe; 802. Discharge pipe; 9. Controller; 10. Dewatering single box; 1001. Mud outlet; 1002. Lifting motor; 1003. Lifting shaft; 1004. Exhaust pipe; 1005. Spiral auger; 1006. Connecting pipe. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, not all, of the embodiments of the present invention. Based on the described 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.

[0019] Please refer to Figures 1 to 8 : Example 1: This invention proposes a sludge dewatering device for ecological management of water conservancy and river channels, comprising: a mounting base plate 1; the mounting base plate 1 is installed in the equipment of a ship hull, and a support frame 2 is fixedly installed on the upper end of the mounting base plate 1; the upper end of the support frame 2 is an inclined structure that slopes downward to one side, and an inclined frame 3 is fixedly installed on the inclined structure of the support frame 2; a dewatering tank 4 with its opening end facing upward is fixedly installed on the upper end of the inclined frame 3; a floating platform 5 is provided on one side of the mounting base plate 1, and the floating platform 5 is in the water surface; a sludge mixing tank 6 is installed on the upper end of the floating platform 5; a sludge pumping tank 7 is fixedly hung on the side of the sludge mixing tank 6 away from the dewatering tank 4; a sludge pumping pump 8 is provided below the sludge pumping tank 7, and the sludge pumping pump 8 pumps the silt in the river channel into the sludge pumping tank 7; at least three dewatering single tanks 10 are installed along the inclined surface in the dewatering tank 4; and a controller 9 is hung on the outer side wall of the dewatering tank 4.

[0020] Among them, the outer side wall of the vertical support square tube near the floating platform 5 of the support frame 2 is vertically provided with hanging pins 201.

[0021] Among them, the sludge discharge slide 301 is provided at the high edge of the inclined frame 3 away from the floating platform 5, and the sludge discharge slide 301 is set in the dewatering single box 10.

[0022] Among them, the bottom of the inner cavity of the dehydration tank 4 is provided with a ceramic filter plate 401, and below the ceramic filter plate 401 is an inclined frame 3. The inclined frame 3 is provided with a long plate for draining water to a lower position. The bottom end of the inclined frame 3 is provided with a drain pipe. The upper part of the ceramic filter plate 401 is connected to the lower end of the inner cavity of the dehydration single tank 10.

[0023] Among them, the bottom cavity of the floating platform 5 is provided with a row of stable rows 503; the left and right side walls of the floating platform 5 near the support frame 2 are respectively connected by pins to the connecting arms 501, and the other end of the connecting arms 501 is provided with a strip-shaped movable slot 502, and the hanging pin 201 on the support frame 2 is slidably placed in the movable slot 502.

[0024] The sludge mixing tank 6 has a mixing motor 601 fixedly installed on its upper support plate. A mixing shaft 602 is vertically rotatably installed inside the sludge mixing tank 6. The upper end of the mixing shaft 602 is fixedly connected to the rotating shaft of the mixing motor 601 via a coupling. A lower scraper 605 is fixedly installed at the lower end of the mixing shaft 602, where it contacts the bottom of the inner cavity of the sludge mixing tank 6. The lower scraper 605 is composed of six inclined blades arranged in a ring. An upper pusher 604 is provided at the upper end of the mixing shaft 602. The upper pusher 604 is composed of six inclined blades arranged in a ring. The cloth is composed of vertical plates. A vertical intermediate mixing plate 606 is fixedly installed on the mixing shaft 602 between the lower scraper 605 and the upper pusher 604. The bottom of the intermediate mixing plate 606 has vertical comb teeth 6062 at the staggered edges. The middle opening of the intermediate mixing plate 606 has vertically spaced evenly spaced cutting strips 6061. The upper end of the sludge mixing box 6 is provided with an outwardly expanding overflow weir 603 on the side near the dewatering single box 10. The overflow weir 603 is connected to the dewatering single box 10 through a connecting pipe 1006.

[0025] The bottom of the inner cavity of the sludge suction box 7, which is connected to the sludge mixing box 6, is provided with a connecting port 702. The bottom of the inner cavity of the sludge suction box 7 is also provided with a guide platform 701 that is inclined downward toward the connecting port 702.

[0026] The sludge pump 8 is equipped with a suction pipe 801 at its lower end, which extends into the silt in the river channel. The sludge pump 8 is equipped with a discharge pipe 802 at its upper end, which extends into the inner cavity of the sludge box 7. The upper end of the discharge pipe 802 is higher than the upper end of the guide inner platform 701.

[0027] In Example 2, based on Example 1, one end of the dewatering single box 10 corresponding to the sludge discharge slide 301 is the sludge outlet 1001. A lifting shaft 1003 is rotatably installed in the dewatering single box 10. A lifting motor 1002 is provided at one end of the lifting shaft 1003. A spiral auger 1005 is fixedly provided on the lifting shaft 1003 in the inner cavity of the dewatering single box 10. An exhaust pipe 1004 is provided at the upper end of the dewatering single box 10 near the high end.

[0028] The following further explains and illustrates the function and effect of each structure mentioned above, so that those skilled in the art can better understand the technical solution: The device uses the mounting base plate 1 as the basic load-bearing component, integrating the entire system into the hull equipment, providing a stable platform for mobile operations on water. The support frame 2 fixed on the mounting base plate 1 has a unique inclined structure design for installing the inclined frame 3, thereby tilting the dewatering tank 4. This layout cleverly utilizes gravity to assist the flow and discharge of sludge during the dewatering process. To achieve the stability and adaptability of the device, the floating platform 5 is slidably connected to the hanging pins 201 on the support frame 2 through the connecting arms 501 on both sides. The movable slots 502 on the connecting arms 501 allow the floating platform 5 to adaptively adjust with water surface fluctuations. At the same time, the bottom stabilizing drain 503 extends into the water, effectively suppressing the swaying of the floating platform 5 and ensuring the stability of the upper sludge mixing tank 6 and sludge pumping tank 7 during sludge pumping operations.

[0029] At the beginning of the sludge treatment process, the sludge pump 8 extracts sludge from the bottom of the river through its suction pipe 801 at the lower end, and transports the sludge to the sludge tank 7 through the discharge pipe 802. The guide platform 701 inside the sludge tank 7 is designed to be inclined, guiding the incoming sludge towards the connection port 702 and flowing into the connected sludge mixing tank 6. This structure avoids sludge accumulation in the tank and ensures the continuity of sludge supply. The sludge mixing tank 6 is a crucial step in material conditioning. A mixing motor 601 at the top drives a mixing shaft 602 to rotate. An upward-pushing plate 604 at the upper end of the mixing shaft 602, composed of annular vertical plates, primarily pushes the material downwards and prevents material buildup at the top. A middle mixing plate 606 in the middle section is equipped with comb teeth 6062 and cutting strips 6061, which shear, divide, and mix the sludge during rotation, promoting uniform contact with any added conditioning agents. A lower scraper 605 at the lower end, composed of inclined blades, rotates close to the bottom of the tank, preventing sludge deposition and caking, and pushing the uniformly mixed sludge to one side. Furthermore, the supernatant or excess water generated during mixing overflows through the overflow weir 603 at the top of the tank and is introduced into the dewatering tank 10 via a connecting pipe 1006, achieving preliminary solid-liquid separation.

[0030] The mixed sludge enters the dewatering tank 4 through a connection. At least three dewatering individual tanks 10 are arranged side-by-side along the inclined surface of the dewatering tank 4, forming a multi-stage dewatering sequence. The bottom of each dewatering individual tank 10 is connected to the upper surface of the ceramic filter plate 401 inside the dewatering tank 4. When the sludge enters, water seeps down through the porous ceramic filter plate 401 under gravity, enters the space of the inclined frame 3 below, and flows along a pre-set long plate to the drain pipe at a lower position, achieving preliminary filtration and dewatering. Simultaneously, the lifting motor 1002 in each dewatering individual tank 10 drives the lifting shaft 1003 and the auger 1005 to rotate. During rotation, the auger 1005 not only lifts and transports the sludge from a lower position to a higher position (i.e., towards the sludge outlet 1001), but its spiral compression also applies pressure to the sludge, further squeezing out internal water. The dewatered sludge cake is finally discharged from the sludge outlet 1001 and slides down the sludge discharge slide 301 at the end of the inclined frame 3 for collection. During the dehydration process, any gases that may be generated by the sludge are discharged through the exhaust pipe 1004 at the top of the dehydration chamber 10, maintaining the air pressure balance inside the chamber.

[0031] Working Principle: During water conservancy and river ecological management operations, the mounting base plate 1 is first fixed to the hull equipment, and the entire device is moved to the operating area. The floating platform 5 is placed on the water surface, and its bottom stabilizing liner 503 is submerged in the water, which effectively increases the lateral stability of the floating platform 5 and prevents it from swaying during operation. The floating platform 5 is movably connected to the hanging pins 201 on the support frame 2 via connecting arms 501 on both sides. The movable slots 502 on the connecting arms 501 allow the floating platform 5 to slide up and down along the hanging pins 201 with the water surface fluctuations and make slight angle adjustments, thereby always maintaining a flexible connection and relative stability with the hull equipment.

[0032] The sludge pump 8 is started, and sludge is drawn from the bottom of the riverbed through the suction pipe 801 and transported to the sludge tank 7 through the discharge pipe 802. Since the upper end of the discharge pipe 802 is higher than the inner guide platform 701 at the bottom of the sludge tank 7, the sludge will naturally fall back after entering and flow along the inclined inner guide platform 701 towards the connecting port 702, entering the sludge mixing tank 6 through the connecting port 702. During this process, if it is necessary to add a conditioner to improve the dewatering performance of the sludge, it can be added through the opening at the top of the sludge mixing tank 6.

[0033] Subsequently, the mixing motor 601 is started, driving the mixing shaft 602 to rotate. The upper push plate 604 at the upper end of the mixing shaft 602 rotates accordingly, pushing any material that may float downwards to prevent it from overflowing from the top. As the middle mixing plate 606 rotates, its comb teeth 6062 and cutting strips 6061 shear and divide the sludge, ensuring that the sludge and conditioning agent are fully mixed and dispersed. The lower scraper 605 at the lower end rotates close to the bottom of the sludge mixing tank 6, preventing sludge deposition and continuously pushing the uniformly mixed sludge towards the side closer to the dewatering tank 4. During the mixing process, the supernatant or excess water precipitated from the sludge rises in level and overflows through the overflow weir 603 at the upper end of the sludge mixing tank 6, and directly enters the dewatering single tank 10 through the connecting pipe 1006, achieving preliminary solid-liquid separation.

[0034] The uniformly mixed sludge enters the dewatering tank 4 under gravity and is distributed into at least three dewatering individual tanks 10 installed side by side along the inclined plane. The sludge entering the dewatering individual tank 10 first falls onto the ceramic filter plate 401 at the bottom of the dewatering tank 4. Under gravity, the water seeps through the porous ceramic filter plate 401 into the inclined frame 3, and then flows along the pre-set long plate in the inclined frame 3 to the drain pipe at the lower position for discharge, completing the first stage of filtration and dewatering.

[0035] Simultaneously, the lifting motor 1002 at one end of the dewatering chamber 10 is activated, driving the lifting shaft 1003 and the auger 1005 fixed thereon to rotate. During rotation, the auger 1005 pushes the sludge along the inner cavity of the dewatering chamber 10 from low to high, while simultaneously applying pressure to the sludge through the squeezing action between the spiral blades and the chamber wall, further squeezing out any remaining water. The resulting sludge cake, after being squeezed and dewatered, is finally pushed to the sludge outlet 1001 at the high end of the dewatering chamber 10 and slides down the corresponding sludge discharge chute 301 at the end of the inclined frame 3 to a designated collection location for centralized processing. Throughout the dewatering process, any gas generated by the sludge is discharged through the exhaust pipe 1004 at the top of the dewatering chamber 10 to maintain stable internal air pressure. The controller 9 is mounted on the outer wall of the dewatering tank 4 and is used to coordinate and control the start, stop and operation sequence of components such as the sludge pump 8, the mixing motor 601, and the lifting motor 1002, thereby realizing the automation and continuous operation of the entire sludge dewatering process.

[0036] The following points should be noted in this article: 1. The accompanying drawings of the embodiments of the present invention only involve the structures involved in the embodiments of the present invention; other structures can refer to general designs.

[0037] 2. Where there is no conflict, the embodiments of the present invention and the features thereof can be combined with each other to obtain new embodiments.

[0038] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A sludge dewatering device for ecological management of water conservancy and river channels, comprising: Mounting base plate (1); the mounting base plate (1) is installed in the ship's equipment, and a support frame (2) is fixedly installed on the upper end of the mounting base plate (1); the upper end of the support frame (2) is a sloping structure that tilts downward to one side, and a sloping frame (3) is fixedly installed on the sloping structure of the support frame (2); a dewatering tank (4) with its opening end facing upward is fixedly installed on the upper end of the sloping frame (3); a floating platform (5) is provided on one side of the mounting base plate (1), and the floating platform (5) is in the water; a sludge mixing tank (6) is installed on the upper end of the floating platform (5); a sludge pumping tank (7) is fixedly hung on the side of the sludge mixing tank (6) away from the dewatering tank (4); a sludge pumping pump (8) is provided below the sludge pumping tank (7), and the sludge pumping pump (8) pumps the silt in the river into the sludge pumping tank (7); at least three dewatering single tanks (10) are installed along the sloping surface in the dewatering tank (4); a controller (9) is hung on the outer side wall of the dewatering tank (4).

2. The sludge dewatering device for ecological management of water conservancy and river channels according to claim 1, characterized in that, The support frame (2) has vertically mounted pins (201) on the outer side wall of the vertically supported square tube at one end near the floating platform (5).

3. The sludge dewatering device for ecological management of water conservancy and river channels according to claim 1, characterized in that, The inclined frame (3) is bent downward at the edge of the high end away from the floating platform (5) and a mud discharge slide (301) is provided. The mud discharge slide (301) is set in the dewatering single box (10).

4. The sludge dewatering device for ecological management of water conservancy and river channels according to claim 1, characterized in that, The bottom of the inner cavity of the dehydration tank (4) is provided with a ceramic filter plate (401), and below the ceramic filter plate (401) is a slanted frame (3). The slanted frame (3) is provided with a long plate for draining water to a lower position. The bottom end of the slanted frame (3) is provided with a drain pipe. The top of the ceramic filter plate (401) is connected to the lower end of the inner cavity of the dehydration single tank (10).

5. A sludge dewatering device for ecological management of water conservancy and river channels according to claim 2, characterized in that, The bottom cavity of the floating platform (5) is provided with a row of stable rows (503); the left and right side walls of the floating platform (5) near the support frame (2) are respectively connected by a pin to a connecting arm (501), and the other end of the connecting arm (501) is provided with a strip-shaped movable slot (502), and the hanging pin (201) on the support frame (2) is slidably placed in the movable slot (502).

6. The sludge dewatering device for ecological management of water conservancy and river channels according to claim 1, characterized in that, A mixing motor (601) is fixedly installed on the upper support plate of the sludge mixing box (6). A mixing shaft (602) is vertically rotatably installed in the sludge mixing box (6). The upper end of the mixing shaft (602) is fixedly connected to the rotating shaft of the mixing motor (601) through a coupling. A lower scraper (605) is fixedly provided at the position where the lower end of the mixing shaft (602) contacts the bottom of the inner cavity of the sludge mixing box (6). The lower scraper (605) is composed of six-bladed, ring-shaped inclined blades. An upper pusher plate (604) is provided at the upper end of the mixing shaft (602). The upper pusher plate (604) is composed of six-bladed, ring-shaped inclined blades. The system is composed of vertical plates. A vertical intermediate mixing plate (606) is fixedly installed on the mixing shaft (602) between the lower scraper (605) and the upper pusher (604). The bottom of the intermediate mixing plate (606) has vertical comb teeth (6062) at the staggered left and right edges. The middle opening of the intermediate mixing plate (606) has vertically spaced evenly spaced cutting strips (6061). The upper end of the sludge mixing box (6) is provided with an outwardly expanding overflow weir (603) on the side near the dewatering single box (10). The overflow weir (603) is connected to the dewatering single box (10) through a connecting pipe (1006).

7. A sludge dewatering device for ecological management of water conservancy and river channels according to claim 1, characterized in that, The bottom of the inner cavity of the sludge suction box (7) which is connected to the sludge mixing box (6) is provided with a communication port (702), and the bottom of the inner cavity of the sludge suction box (7) is also provided with a guide platform (701) that is inclined downward toward the communication port (702).

8. A sludge dewatering device for ecological management of water conservancy and river channels according to claim 7, characterized in that, The lower end of the sludge pump (8) is provided with a suction pipe (801), which extends into the silt in the river channel. The upper end of the sludge pump (8) is provided with a discharge pipe (802), which extends into the inner cavity of the sludge box (7). The upper end of the discharge pipe (802) is higher than the upper end of the guide inner platform (701).

9. A sludge dewatering device for ecological management of water conservancy and river channels according to claim 3, characterized in that, The dewatering single box (10) has a mud outlet (1001) at one end corresponding to the mud discharge slide (301). A lifting shaft (1003) is rotatably installed in the dewatering single box (10). A lifting motor (1002) is provided at one end of the lifting shaft (1003). A spiral auger (1005) is fixedly installed on the lifting shaft (1003) in the inner cavity of the dewatering single box (10). An exhaust pipe (1004) is provided at the upper end of the dewatering single box (10) near the high end.

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