Sludge dewatering equipment for water conservancy project

Abstract

The water conservancy project sludge dewatering equipment comprises a base and a rotating shaft, the rotating shaft is rotationally arranged at the top of the base, a plurality of material containing frames are fixedly arranged on the surface of the rotating shaft at equal intervals in a surrounding mode, filter plates are arranged in the material containing frames, and a multi-station filter pressing mechanism is arranged on the surface of the rotating shaft; the invention relates to the technical field of sludge dewatering. According to the sludge dewatering equipment for the water conservancy project, the multi-station filter pressing mechanism, the sludge self-stripping mechanism and the intermittent cleaning mechanism are arranged at the top of the base, so that the device can continuously perform filter pressing and dewatering on sludge at multiple stations through the cooperation of the multi-station filter pressing mechanism, the sludge self-stripping mechanism and the intermittent cleaning mechanism; and in the process of station conversion, mud blocks in a single station are synchronously, sequentially and automatically stripped, and in the process of filter pressing and stripping, filter plates in all the stations are synchronously, automatically and sequentially cleaned, so that the situation that the dewatering efficiency is reduced due to shutdown cleaning is avoided.

Description

Technical Field

[0001] This invention relates to the field of sludge dewatering technology, specifically to a sludge dewatering device for water conservancy projects. Background Technology

[0002] Sludge dewatering is a sludge treatment method that removes water from fluidized, raw, concentrated, or digested sludge, transforming it into semi-solid or solid sludge blocks. Dewatering methods mainly include natural drying, mechanical dewatering, and granulation. Sludge is an inevitable byproduct of wastewater treatment plants and wastewater treatment processes. When improperly treated sludge enters the environment, it directly causes secondary pollution to water bodies and the atmosphere, not only reducing the effective treatment capacity of wastewater treatment systems but also posing a serious threat to the ecological environment and human activities.

[0003] To facilitate sludge dewatering, existing technologies often employ plate filter presses. While this method can dewater sludge, it requires frequent shutdowns to clean the filter plates, resulting in lower overall dewatering efficiency. Therefore, a sludge dewatering device for water conservancy projects is proposed to address these issues. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a sludge dewatering device for water conservancy projects, which solves the problem that filter press dewatering equipment requires shutdown for cleaning of the filter plates, resulting in an overall dewatering efficiency that needs improvement.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a sludge dewatering device for water conservancy projects, comprising a base and a rotating shaft, wherein the rotating shaft is rotatably mounted on the top of the base, and a plurality of material holding frames are fixedly arranged at equal intervals around the surface of the rotating shaft, wherein filter plates are arranged inside the material holding frames, a multi-station filter pressing mechanism is arranged on the surface of the rotating shaft, a sludge self-dewatering mechanism for use with the filter plates is arranged on the top of the base, and an intermittent cleaning mechanism is arranged on the top of the base.

[0006] Preferably, the multi-station filter press mechanism includes a spiral guide groove, wherein a plurality of spiral guide grooves are provided and are equidistantly arranged around the surface of the rotating shaft. A plurality of vertical guide grooves are equidistantly arranged around the surface of the rotating shaft and are connected to the spiral guide grooves. A backflow preventer is provided inside the vertical guide groove. An electric telescopic rod is fixedly connected to the top of the base via a bracket. An installation block is fixedly connected to the bottom of the extension end of the electric telescopic rod. A filter press plate is fixedly connected to the bottom of the installation block via a support column. A storage sleeve is fixedly connected to one side of the installation block. A guide post for use with the spiral guide grooves is slidably connected inside the storage sleeve. A third return spring is fixedly connected between the guide post and the storage sleeve.

[0007] Preferably, the sludge self-deloading mechanism includes a convex sliding frame, which is fixedly mounted on the top of the base by a bracket. A docking frame is fixedly connected to the top of the filter plate. A roller that is rotatably adapted to slide with the convex sliding frame is rotatably mounted inside the docking frame. A directional sliding groove is opened on the surface of the material holding frame. A directional sliding plate that is slidably adapted to slide with the directional sliding groove is fixedly connected to the surface of the filter plate.

[0008] Preferably, the intermittent cleaning mechanism includes a water pump, which is fixedly mounted on the bottom of the filter plate by a bracket. The inlet end of the water pump is connected to a water pumping pipe, and the outlet end of the water pump is connected to a spray pipe. The spray pipe is fixedly connected to a directional sliding plate, and the top of the spray pipe is connected to several nozzles through a branch pipe. The top of the base is fixedly connected to a convex water trough that is compatible with the water pumping pipe by a bracket.

[0009] Preferably, a crossbar is fixedly connected to the surface of the filter plate, and a control button for use with the water pump is installed inside the crossbar through an installation groove. The surface of the control button is provided with ball bearings through a pad, and an arc-shaped baffle for use with the ball bearings is fixedly connected to the top of the base through a column.

[0010] Preferably, the surface of the convex water tank is fixedly connected to an inner polygonal sleeve by a bracket, and a polygonal limiting rod is slidably connected inside the inner polygonal sleeve. A first return spring is fixedly connected between the polygonal limiting rod and the inner polygonal sleeve.

[0011] Preferably, a sloping plate is fixedly connected to one side of the polygonal limiting rod, a sludge feed pipe is fixedly connected to the bottom of the sloping plate, and a flexible hose is connected to one end of the sludge feed pipe.

[0012] Preferably, an L-shaped plate is fixedly connected to the top of the filter press plate, and rollers are rotatably connected inside the L-shaped plate.

[0013] Preferably, a ratchet is fixedly connected to the surface of the rotating shaft, and a limit frame is fixedly connected to the top of the base via a bracket. A pawl that is matched with the ratchet is slidably connected inside the limit frame.

[0014] Preferably, a second return spring is fixedly connected between the pawl and the limiting frame.

[0015] This invention provides a sludge dewatering device for water conservancy projects. Compared with existing technologies, it has the following advantages: (1) The sludge dewatering equipment for water conservancy projects, by setting a multi-station filter press mechanism, a sludge self-dewatering mechanism and an intermittent cleaning mechanism on the top of the base, enables the device to continuously filter and dewater sludge at multiple stations through the coordinated cooperation of the multi-station filter press mechanism, the sludge self-dewatering mechanism and the intermittent cleaning mechanism, and to automatically dewater the sludge blocks in a single station in sequence during the station switching process, and to automatically clean the filter plates of each station in sequence during the filter press and dewatering process, so as to avoid the dewatering efficiency being reduced due to machine shutdown for cleaning.

[0016] (2) The sludge dewatering equipment of this water conservancy project, by setting inclined plates, L-shaped plates and rollers between the sludge feed pipe and the filter press, makes it easy to automatically adjust the feeding position of the sludge feed pipe so that the filter press can filter the sludge without obstruction.

[0017] (3) The sludge dewatering equipment of this water conservancy project, by setting a ratchet, a pawl and a second return spring between the rotating shaft and the limit frame, makes it easy to stop the equidistant rotation of the rotating shaft.

[0018] (4) The sludge dewatering equipment of this water conservancy project, by setting a convex water tank, makes it easy for the pumping pipes at different positions to draw water. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the external structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the convex sliding frame of the present invention; Figure 3 This is an unfolded view of the material holding frame and filter plate structure of the present invention; Figure 4 This is a schematic diagram of the multi-station filter press mechanism structure of the present invention; Figure 5 This is a schematic diagram of the inclined plate structure of the present invention; Figure 6 This is a schematic diagram of the convex water tank structure of the present invention; Figure 7 This is a schematic diagram of the crossbar structure of the present invention; Figure 8 For the present invention Figure 7 A magnified view of a section at point A in the middle; Figure 9 This is a schematic diagram of the internal structure of the limiting frame of the present invention; Figure 10 This is a schematic diagram of the rotating shaft structure of the present invention.

[0020] In the diagram: 1. Base; 2. Rotating shaft; 3. Material holding frame; 4. Filter plate; 5. Multi-station filter press mechanism; 501. Spiral guide groove; 502. Vertical guide groove; 503. Anti-reverse inclined block; 504. Electric telescopic rod; 505. Mounting block; 506. Filter press plate; 507. Storage sleeve; 508. Guide column; 509. Third return spring; 6. Sludge self-unloading mechanism; 601. Convex sliding frame; 602. Roller; 603. Connecting frame; 604. Directional slide groove; 605. Directional sliding plate; 7. Intermittent cleaning mechanism; 701, water pump; 702, water suction pipe; 703, spray pipe; 704, nozzle; 705, convex water trough; 706, crossbar; 707, control button; 708, ball bearing; 709, arc-shaped baffle; 8, inner polygonal sleeve; 9, polygonal limit rod; 10, first return spring; 11, inclined plate; 12, sludge feed pipe; 13, hose; 14, L-shaped plate; 15, roller; 16, ratchet; 17, limit frame; 18, pawl; 19, second return spring. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0022] Please see Figures 1-10 This invention provides two technical solutions: Example 1

[0023] A sludge dewatering device for water conservancy projects includes a base 1 and a rotating shaft 2. The rotating shaft 2 is rotatably mounted on the top of the base 1. Several material holding frames 3 are fixedly arranged at equal intervals around the surface of the rotating shaft 2. Filter plates 4 are arranged inside the material holding frames 3. A ratchet 16 is fixedly connected to the surface of the rotating shaft 2. A limit frame 17 is fixedly connected to the top of the base 1 through a bracket. A pawl 18 that is matched with the ratchet 16 is slidably connected inside the limit frame 17. A second return spring 19 is fixedly connected between the pawl 18 and the limit frame 17.

[0024] In a preferred embodiment, to facilitate multi-station continuous filtration of sludge, a multi-station filtration mechanism 5 is provided on the surface of the rotating shaft 2. The multi-station filtration mechanism 5 includes a spiral guide groove 501, and several spiral guide grooves 501 are provided, which are equidistantly arranged around the surface of the rotating shaft 2. Several vertical guide grooves 502 are equidistantly arranged around the surface of the rotating shaft 2, and the vertical guide grooves 502 are connected to the spiral guide grooves 501. A backflow preventer 503 is provided inside the vertical guide grooves 502. An electric extension is fixedly connected to the top of the base 1 through a bracket. The bottom of the extension end of the telescopic rod 504 is fixedly connected to the mounting block 505. The bottom of the mounting block 505 is fixedly connected to the filter plate 506 via a support column. A storage sleeve 507 is fixedly connected to one side of the mounting block 505. A guide column 508, which is used in conjunction with the spiral guide groove 501, is slidably connected inside the storage sleeve 507. A third return spring 509 is fixedly connected between the guide column 508 and the storage sleeve 507. As a detailed explanation: A sewage collection frame, which is used in conjunction with the left filter plate 4, is installed on the top of the base 1.

[0025] In a preferred embodiment, to facilitate automatic desludge removal after filter pressing, a sludge self-desludge desludge mechanism 6 is provided on the top of the base 1 to be used in conjunction with the filter plate 4. The sludge self-desludge desludge mechanism 6 includes a convex sliding frame 601, which is fixedly mounted on the top of the base 1 by a bracket. A docking frame 603 is fixedly connected to the top of the filter plate 4. A roller 602 that is rotatably adapted to slide with the convex sliding frame 601 is rotatably mounted inside the docking frame 603. In detail, friction-reducing balls are provided at the top and bottom of the docking frame 603 and inside the convex sliding frame 601. A directional sliding groove 604 is provided on the surface of the material holding frame 3. A directional sliding plate 605 that is slidably adapted to slide with the directional sliding groove 604 is fixedly connected to the surface of the filter plate 4. In detail, a fan-shaped sludge collection hopper is installed between the left and front sides of the top of the base 1.

[0026] In a preferred embodiment, to facilitate continuous cleaning of the filter plate 4, an intermittent cleaning mechanism 7 is provided on the top of the base 1. The intermittent cleaning mechanism 7 includes a water pump 701, which is fixedly mounted on the bottom of the filter plate 4 by a bracket. The inlet end of the water pump 701 is connected to a water suction pipe 702, and the outlet end of the water pump 701 is connected to a spray pipe 703. The spray pipe 703 is fixedly connected to a directional sliding plate 605, and the top of the spray pipe 703 is connected to several spray nozzles 704 through branch pipes. The top of the base 1 is fixed by a bracket. A convex water tank 705 is connected to the water pump 702. A crossbar 706 is fixedly connected to the surface of the filter plate 4. A control button 707 for the water pump 701 is installed inside the crossbar 706 through an installation slot. A ball bearing 708 is provided on the surface of the control button 707 through a pad. An arc-shaped baffle 709 for the ball bearing 708 is fixedly connected to the top of the base 1 through a column. As explained in detail, a water collection tank for recycling clean water is installed on the front side of the top of the base 1.

[0027] Example 2

[0028] A sludge dewatering device for water conservancy projects includes a base 1 and a rotating shaft 2. The rotating shaft 2 is rotatably mounted on the top of the base 1. Several material holding frames 3 are fixedly arranged at equal intervals around the surface of the rotating shaft 2. Filter plates 4 are arranged inside the material holding frames 3. A ratchet 16 is fixedly connected to the surface of the rotating shaft 2. A limit frame 17 is fixedly connected to the top of the base 1 through a bracket. A pawl 18 that is matched with the ratchet 16 is slidably connected inside the limit frame 17. A second return spring 19 is fixedly connected between the pawl 18 and the limit frame 17.

[0029] In a preferred embodiment, to facilitate multi-station continuous filtration of sludge, a multi-station filtration mechanism 5 is provided on the surface of the rotating shaft 2. The multi-station filtration mechanism 5 includes a spiral guide groove 501, and several spiral guide grooves 501 are provided, which are equidistantly arranged around the surface of the rotating shaft 2. Several vertical guide grooves 502 are equidistantly arranged around the surface of the rotating shaft 2, and the vertical guide grooves 502 are connected to the spiral guide grooves 501. A backflow preventer 503 is provided inside the vertical guide grooves 502. An electric extension is fixedly connected to the top of the base 1 through a bracket. The bottom of the extension end of the telescopic rod 504 is fixedly connected to the mounting block 505. The bottom of the mounting block 505 is fixedly connected to the filter plate 506 via a support column. A storage sleeve 507 is fixedly connected to one side of the mounting block 505. A guide column 508, which is used in conjunction with the spiral guide groove 501, is slidably connected inside the storage sleeve 507. A third return spring 509 is fixedly connected between the guide column 508 and the storage sleeve 507. As a detailed explanation: A sewage collection frame, which is used in conjunction with the left filter plate 4, is installed on the top of the base 1.

[0030] In a preferred embodiment, to facilitate automatic desludge removal after filter pressing, a sludge self-desludge desludge mechanism 6 is provided on the top of the base 1 to be used in conjunction with the filter plate 4. The sludge self-desludge desludge mechanism 6 includes a convex sliding frame 601, which is fixedly mounted on the top of the base 1 by a bracket. A docking frame 603 is fixedly connected to the top of the filter plate 4. A roller 602 that is rotatably adapted to slide with the convex sliding frame 601 is rotatably mounted inside the docking frame 603. In detail, friction-reducing balls are provided at the top and bottom of the docking frame 603 and inside the convex sliding frame 601. A directional sliding groove 604 is provided on the surface of the material holding frame 3. A directional sliding plate 605 that is slidably adapted to slide with the directional sliding groove 604 is fixedly connected to the surface of the filter plate 4. In detail, a fan-shaped sludge collection hopper is installed between the left and front sides of the top of the base 1.

[0031] In a preferred embodiment, to facilitate continuous cleaning of the filter plate 4, an intermittent cleaning mechanism 7 is provided on the top of the base 1. The intermittent cleaning mechanism 7 includes a water pump 701, which is fixedly mounted on the bottom of the filter plate 4 by a bracket. The inlet end of the water pump 701 is connected to a water suction pipe 702, and the outlet end of the water pump 701 is connected to a spray pipe 703. The spray pipe 703 is fixedly connected to a directional sliding plate 605, and the top of the spray pipe 703 is connected to several spray nozzles 704 through branch pipes. The top of the base 1 is fixed by a bracket. A convex water tank 705 is connected to the water pump 702. A crossbar 706 is fixedly connected to the surface of the filter plate 4. A control button 707 for the water pump 701 is installed inside the crossbar 706 through an installation slot. A ball bearing 708 is provided on the surface of the control button 707 through a pad. An arc-shaped baffle 709 for the ball bearing 708 is fixedly connected to the top of the base 1 through a column. As explained in detail, a water collection tank for recycling clean water is installed on the front side of the top of the base 1.

[0032] An inner polygonal sleeve 8 is fixedly connected to the surface of the convex water tank 705 via a bracket. A polygonal limiting rod 9 is slidably connected inside the inner polygonal sleeve 8. A first reset spring 10 is fixedly connected between the polygonal limiting rod 9 and the inner polygonal sleeve 8. An inclined plate 11 is fixedly connected to one side of the polygonal limiting rod 9. A sludge feed pipe 12 is fixedly connected to the bottom of the inclined plate 11. A hose 13 is connected to one end of the sludge feed pipe 12. An L-shaped plate 14 is fixedly connected to the top of the filter press plate 506. A roller 15 is rotatably connected inside the L-shaped plate 14.

[0033] The advantage of Example 2 compared to Example 1 is that by setting an inclined plate 11, an L-shaped plate 14 and a roller 15 between the sludge feed pipe 12 and the filter press plate 506, the discharge position of the sludge feed pipe 12 can be easily adjusted automatically so that the filter press plate 506 can filter the sludge without obstruction.

[0034] The specific steps are as follows: Step 1, Sludge feeding: External sludge is fed into the left-side holding frame 3 through the hose 13 and sludge feed pipe 12. After an appropriate amount of sludge falls into the left-side holding frame 3, the local water source in the sludge is automatically filtered through the filter plate 4. Sludge plate dewatering: Start the electric telescopic rod 504. The extension end of the electric telescopic rod 504 descends, driving the mounting block 505 and the filter plate 506 to descend. The filter plate 506 descends into the interior of the material holding frame 3 and squeezes the remaining sludge inside the material holding frame 3. The remaining water in the squeezed sludge will be filtered from the bottom of the filter plate 4. Adaptive retraction: The filter press plate 506 descends simultaneously with the L-shaped plate 14 and roller 15. The roller 15 descends and squeezes the inclined plate 11, so that when the filter press plate 506 has not entered the inside of the material holding frame 3, it can push the inclined plate 11 to cause the sludge feed pipe 12 to retract and detach from the top of the material holding frame 3. Step 2, Rotation of the material holding frame in three directions: When the extension end of the electric telescopic rod 504 drives the mounting block 505 to descend, the mounting block 505 simultaneously drives the guide column 508 to descend inside the vertical guide groove 502 via the storage sleeve 507. When the guide column 508 descends vertically in the vertical guide groove 502, it will first move along the upper inclined surface of the anti-reverse inclined block 503 and descend to the bottom of the anti-reverse inclined block 503 until the mounting block 505 drives the filter press plate 506 to complete the dewatering of the sludge. After dewatering, the electric... The telescopic rod 504 drives the filter press plate 506 and the guide column 508 to rise and reset. When the guide column 508 resets, it will be blocked by the bottom of the anti-reverse inclined block 503, which will cause the guide column 508 to enter the interior of the spiral guide groove 501 along the trajectory of the vertical guide groove 502. Through the compression of the spiral guide groove 501 by the rising of the guide column 508, the rotating shaft 2 will drive several material holding frames 3 and filter plates 4 to rotate at equal distances. By rotating, the empty material holding frames 3 inside will replace the original position of the left material holding frame 3. Dewatered sludge removal: When the positions of the above-mentioned several material collection frames 3 are rotated, the original left-side material collection frame 3 and filter plate 4 will rotate to the front side accordingly. When the filter plate 4 moves, it will drive the roller 602 to move inside the convex sliding frame 601 through the docking frame 603. Since the front side of the convex sliding frame 601 is convex, the movement of the roller 602 within the convex range will pull the filter plate 4 through the docking frame 603, causing the filter plate 4 to be slowly pulled out from the bottom of the material collection frame 3. With the pulling out of the filter plate 4, the dewatered sludge on the top of the filter plate 4 will be removed from the bottom of the material collection frame 3. Step 3, Automatic Cleaning of Filter Plate 4: During the rotation and pulling of the original left-side filter plate 4 to the front in Step 2, the filter plate 4 simultaneously drives the crossbar 706, control button 707, and ball bearing 708 to move. When the ball bearing 708 moves to the front, it will press against the protrusion of the arc-shaped baffle 709, causing the ball bearing 708 to retract and press the control button 707. The control button 707 is forced to start the water pump 701. The water pump 701 starts and draws clean water from the inside of the convex water tank 705 through the water pipe 702. Then, the water is transferred to the inside of the spray pipe 703 and then sprayed onto the top of the filter plate 4 in the pulled state through the spray nozzle 704 for cleaning.

Claims

1. A sludge dewatering device for water conservancy projects, comprising a base (1) and a rotating shaft (2), wherein the rotating shaft (2) is rotatably disposed on the top of the base (1), characterized in that: The surface of the rotating shaft (2) is fixedly provided with several material holding frames (3) at equal intervals. The inside of the material holding frames (3) is provided with filter plates (4). The surface of the rotating shaft (2) is provided with a multi-station filter press mechanism (5). The top of the base (1) is provided with a sludge self-deloading mechanism (6) that is used in conjunction with the filter plates (4). The top of the base (1) is provided with an intermittent cleaning mechanism (7).

2. The sludge dewatering equipment for water conservancy projects according to claim 1, characterized in that: The multi-station filter press mechanism (5) includes a spiral guide groove (501), which is provided in several ways. The spiral guide grooves (501) are equidistantly arranged around the surface of the rotating shaft (2). The surface of the rotating shaft (2) is provided with several vertical guide grooves (502) equidistantly arranged around the surface of the rotating shaft (2). The vertical guide grooves (502) are connected to the spiral guide grooves (501). The interior of the vertical guide grooves (502) is provided with anti-reverse inclined blocks (503). The top of the base (1) is fixedly connected to an electric telescopic rod (503) by a bracket. 4) An installation block (505) is fixedly connected to the bottom of the extension end of the electric telescopic rod (504). A filter press plate (506) is fixedly connected to the bottom of the installation block (505) through a support column. A storage sleeve (507) is fixedly connected to one side of the installation block (505). A guide post (508) that is used in conjunction with the spiral guide groove (501) is slidably connected inside the storage sleeve (507). A third reset spring (509) is fixedly connected between the guide post (508) and the storage sleeve (507).

3. The sludge dewatering equipment for water conservancy projects according to claim 1, characterized in that: The sludge self-deloading mechanism (6) includes a convex sliding frame (601), which is fixedly mounted on the top of the base (1) by a bracket. A docking frame (603) is fixedly connected to the top of the filter plate (4). A roller (602) that is rotatably adapted to slide with the convex sliding frame (601) is rotatably mounted inside the docking frame (603). A directional sliding groove (604) is opened on the surface of the material holding frame (3), and a directional sliding plate (605) that is slidably adapted to slide with the directional sliding groove (604) is fixedly connected to the surface of the filter plate (4).

4. The sludge dewatering equipment for water conservancy projects according to claim 3, characterized in that: The intermittent cleaning mechanism (7) includes a water pump (701), which is fixedly mounted on the bottom of the filter plate (4) by a bracket. The inlet end of the water pump (701) is connected to a water pumping pipe (702), and the outlet end of the water pump (701) is connected to a spray pipe (703). The spray pipe (703) is fixedly connected to a directional sliding plate (605). The top of the spray pipe (703) is connected to several nozzles (704) through a branch pipe. The top of the base (1) is fixedly connected to a convex water tank (705) that is used in conjunction with the water pumping pipe (702) by a bracket.

5. The sludge dewatering equipment for water conservancy projects according to claim 4, characterized in that: A crossbar (706) is fixedly connected to the surface of the filter plate (4). A control button (707) for use with the water pump (701) is installed inside the crossbar (706) through an installation groove. A ball bearing (708) is provided on the surface of the control button (707) through a pad. An arc-shaped baffle (709) for use with the ball bearing (708) is fixedly connected to the top of the base (1) through a column.

6. The sludge dewatering equipment for water conservancy projects according to claim 4, characterized in that: The surface of the convex water tank (705) is fixedly connected to an inner polygonal sleeve (8) by a bracket. A polygonal limiting rod (9) is slidably connected inside the inner polygonal sleeve (8). A first reset spring (10) is fixedly connected between the polygonal limiting rod (9) and the inner polygonal sleeve (8).

7. The sludge dewatering equipment for water conservancy projects according to claim 6, characterized in that: A ramp (11) is fixedly connected to one side of the polygonal limiting rod (9), and a sludge feed pipe (12) is fixedly connected to the bottom of the ramp (11). One end of the sludge feed pipe (12) is connected to a flexible hose (13).

8. The sludge dewatering equipment for water conservancy projects according to claim 2, characterized in that: The top of the filter press plate (506) is fixedly connected to an L-shaped plate (14), and a roller (15) is rotatably connected inside the L-shaped plate (14).

9. The sludge dewatering equipment for water conservancy projects according to claim 1, characterized in that: A ratchet (16) is fixedly connected to the surface of the rotating shaft (2), and a limit frame (17) is fixedly connected to the top of the base (1) through a bracket. A pawl (18) that is matched with the ratchet (16) is slidably connected inside the limit frame (17).

10. A sludge dewatering device for water conservancy projects according to claim 9, characterized in that: A second return spring (19) is fixedly connected between the pawl (18) and the limiting frame (17).

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