A water conservancy project sludge dewatering device

Abstract

The application discloses a water conservancy project sludge dewatering equipment, which comprises a base and a rotating shaft, the rotating shaft is rotationally arranged on the top of the base, a plurality of material containing frames are fixedly arranged on the surface of the rotating shaft at equal intervals, a filter plate is arranged in the material containing frame, and a multi-station filter pressing mechanism is arranged on the surface of the rotating shaft, and the application relates to the technical field of sludge dewatering. The water conservancy project sludge dewatering equipment is provided with a multi-station filter pressing mechanism, a sludge self-unloading mechanism and an intermittent cleaning mechanism on the top of the base, so that the device can continuously perform filter pressing dewatering on sludge in multiple stations through the cooperation of the multi-station filter pressing mechanism, the sludge self-unloading mechanism and the intermittent cleaning mechanism, the sludge in a single station can be automatically unloaded in sequence during station conversion, and the filter plates of all stations can be automatically cleaned in sequence during filter pressing and unloading, so that the dewatering efficiency is not reduced due to cleaning during shutdown.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sludge dewatering, in particular to a sludge dewatering device for water conservancy projects. BACKGROUND

[0002] Sludge dewatering is a sludge treatment method that converts the water in the flow state of raw, concentrated or digested sludge into semi-solid or solid sludge by removing water. The main methods of dewatering are natural drying, mechanical dewatering and granulation. Sludge is an inevitable product of sewage treatment plants and sewage treatment. If the sludge is not properly treated and disposed of, it will directly pollute the water body and the atmosphere, not only reducing the effective treatment capacity of the sewage treatment system, but also posing a serious threat to the ecological environment and human activities.

[0003] In order to facilitate the dewatering of sludge, the prior art often uses a plate filter press to dewater sludge. Although this method can dewater, it needs to be stopped frequently to clean the filter plates, resulting in the problem that the overall dewatering efficiency needs to be improved. Therefore, a sludge dewatering device for water conservancy projects is proposed to solve the existing problems. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a sludge dewatering device for water conservancy projects, which solves the problem that the filter plate needs to be cleaned during the dewatering process, resulting in the problem that the overall dewatering efficiency needs to be improved.

[0005] To achieve the above purpose, the present application is realized by the following technical scheme: a sludge dewatering device for water conservancy projects, comprising a base and a rotating shaft, the rotating shaft is rotatably arranged on the top of the base, a plurality of material holding frames are fixedly arranged on the surface of the rotating shaft at equal intervals, a filter plate is arranged in the material holding frame, a multi-station filter pressing mechanism is arranged on the surface of the rotating shaft, a sludge self-removal mechanism matched with the filter plate 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 pressing mechanism comprises a spiral guide groove, a plurality of spiral guide grooves are arranged on the surface of the rotating shaft at equal intervals, a plurality of vertical guide grooves are arranged on the surface of the rotating shaft at equal intervals, the vertical guide grooves are in communication with the spiral guide grooves, a reverse stop inclined block is arranged in the vertical guide groove, an electric telescopic rod is fixedly connected to the top of the base through a support, an installation block is fixedly connected to the bottom of the extension end of the electric telescopic rod, a filter plate is fixedly connected to the bottom of the installation block through a support column, a receiving sleeve is fixedly connected to one side of the installation block, a guide column matched with the spiral guide groove is slidably connected in the receiving sleeve, and a third return spring is fixedly connected between the guide column and the receiving sleeve.

[0007] Preferably, the sludge self-removing mechanism comprises a convex sliding frame fixedly arranged on the top of the base through a support, the top of the filter plate is fixedly connected with a butt joint frame, a rolling shaft slidingly matched with the convex sliding frame is rotatably arranged in the butt joint frame, and the surface of the material containing frame is provided with a directional sliding groove.

[0008] Preferably, the intermittent cleaning mechanism comprises a water pump fixedly arranged at the bottom of the filter plate through a support, the inlet end of the water pump is communicated with a water suction pipe, the outlet end of the water pump is communicated with a spraying pipe, the spraying pipe is fixedly connected with the directional sliding plate, the top of the spraying pipe is communicated with a plurality of spray heads through a branch pipe, and the top of the base is fixedly connected with a convex water tank matched with the water suction pipe through a support.

[0009] Preferably, the surface of the filter plate is fixedly connected with a cross rod, the inside of the cross rod is installed with a control button matched with the water pump through an installation groove, the surface of the control button is provided with a ball through a backing plate, and the top of the base is fixedly connected with an arc-shaped baffle matched with the ball through a stand column.

[0010] Preferably, the surface of the convex water tank is fixedly connected with an inner polygon sleeve through a support, the inner polygon sleeve is slidingly connected with a polygonal limiting rod, and the polygonal limiting rod and the inner polygon sleeve are fixedly connected with a first reset spring.

[0011] Preferably, one side of the polygonal limiting rod is fixedly connected with an inclined plate, the bottom of the inclined plate is fixedly connected with a sludge feeding pipe, and one end of the sludge feeding pipe is communicated with a hose.

[0012] Preferably, the top of the filter plate is fixedly connected with an L-shaped plate, and the inside of the L-shaped plate is rotatably connected with a roller.

[0013] Preferably, the surface of the rotating shaft is fixedly connected with a ratchet wheel, the top of the base is fixedly connected with a limiting frame through a support, and the inside of the limiting frame is slidingly connected with a pawl matched with the ratchet wheel.

[0014] Preferably, the pawl and the limiting frame are fixedly connected with a second reset spring.

[0015] The application provides a sludge dewatering device for water conservancy projects.

[0016] (1) The water conservancy project sludge dewatering equipment, through the top of the base is provided with multi-station filter pressing mechanism, sludge self-removal mechanism and intermittent cleaning mechanism, so that the device can be through the cooperation of multi-station filter pressing mechanism, sludge self-removal mechanism and intermittent cleaning mechanism, can multi-station continuous sludge filter pressing dewatering, and in the process of station conversion, the mud block in the single station is sequentially automatically removed, and in the process of filter pressing and removal, the filter plate of each station is sequentially cleaned, avoiding the reduction of dewatering efficiency caused by shutdown cleaning.

[0017] (2) The water conservancy project sludge dewatering equipment, through the setting of the inclined plate, the L-shaped plate and the roller between the sludge feeding pipe and the filter plate, the sludge feeding pipe discharging position is easy to automatically adjust, so that the filter plate can filter sludge without resistance.

[0018] (3) The water conservancy project sludge dewatering equipment, through the setting of the ratchet, the pawl and the second reset spring between the rotating shaft and the limiting frame, the equidistant rotation of the rotating shaft is easy to reverse.

[0019] (4) The water conservancy project sludge dewatering equipment, through the setting of the convex water tank, the water suction pipe at different positions can be easily watered. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is the schematic diagram of the external structure of the application;

[0021] Figure 2 is the schematic diagram of the internal structure of the convex sliding frame of the application;

[0022] Figure 3 is the expanded view of the material holding frame and filter plate structure of the application;

[0023] Figure 4 is the schematic diagram of the multi-station filter pressing mechanism structure of the application;

[0024] Figure 5 is the schematic diagram of the inclined plate structure of the application;

[0025] Figure 6 is the schematic diagram of the convex water tank structure of the application;

[0026] Figure 7 is the schematic diagram of the horizontal rod structure of the application;

[0027] Figure 8 is the schematic diagram of the horizontal rod structure of the application; Figure 7 is the local enlarged view of A in the application;

[0028] Figure 9 is the schematic diagram of the internal structure of the limiting frame of the application;

[0029] Figure 10 is the schematic diagram of the rotating shaft structure of the application.

[0030] 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

[0031] 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.

[0032] Please see Figures 1-10 This invention provides two technical solutions:

[0033] Example 1

[0034] 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.

[0035] As a preferred embodiment, in order to facilitate multi-station continuous pressure filtration of sludge, the surface of the rotating shaft 2 is provided with a multi-station pressure filtration mechanism 5, which includes a plurality of spiral guide grooves 501, the plurality of spiral guide grooves 501 are equidistantly arranged around the surface of the rotating shaft 2, the surface of the rotating shaft 2 is equidistantly provided with a plurality of vertical guide grooves 502, the vertical guide grooves 502 are in communication with the spiral guide grooves 501, the inside of the vertical guide grooves 502 is provided with a reverse stop inclined block 503, the top of the base 1 is fixedly connected with an electric telescopic rod 504 through a support, the bottom of the extension end of the electric telescopic rod 504 is fixedly connected with a mounting block 505, the bottom of the mounting block 505 is fixedly connected with a pressure filtration plate 506 through a support column, one side of the mounting block 505 is fixedly connected with a receiving sleeve 507, the inside of the receiving sleeve 507 is slidably connected with a guide column 508 matched with the spiral guide groove 501, the guide column 508 and the receiving sleeve 507 are fixedly connected with a third return spring 509, as a detailed explanation: the top of the base 1 is provided with a sewage collection frame matched with the left filter plate 4.

[0036] As a preferred embodiment, in order to facilitate automatic stripping of sludge after pressure filtration, the top of the base 1 is provided with a sludge self-stripping mechanism 6 matched with the filter plate 4, the sludge self-stripping mechanism 6 includes a convex sliding frame 601, the convex sliding frame 601 is fixedly arranged on the top of the base 1 through a support, the top of the filter plate 4 is fixedly connected with a docking frame 603, the inside of the docking frame 603 is rotatably provided with a roller shaft 602 slidably matched with the convex sliding frame 601, as a detailed explanation: the top and bottom of the docking frame 603 and inside the convex sliding frame 601 are provided with resistance-reducing balls, the surface of the material holding frame 3 is provided with a directional sliding groove 604, the surface of the filter plate 4 is fixedly connected with a directional sliding plate 605 slidably matched with the directional sliding groove 604, as a detailed explanation: the left side and the front side of the top of the base 1 are provided with a fan-shaped sludge collecting hopper.

[0037] As a preferred embodiment, in order to facilitate the cleaning of the filter plate 4 without stopping, the top of the base 1 is provided with an intermittent cleaning mechanism 7, which comprises a water pump 701 fixedly arranged at the bottom of the filter plate 4 through a support, the inlet end of the water pump 701 is communicated with a water suction pipe 702, the outlet end of the water pump 701 is communicated with a spray pipe 703, and the spray pipe 703 is fixedly connected with the directional sliding plate 605, the top of the spray pipe 703 is communicated with a plurality of spray heads 704 through a branch pipe, the top of the base 1 is fixedly connected with a convex water tank 705 matched with the water suction pipe 702 through a support, the surface of the filter plate 4 is fixedly connected with a cross rod 706, the inside of the cross rod 706 is installed with a control button 707 matched with the water pump 701 through an installation groove, the surface of the control button 707 is provided with a ball 708 through a backing plate, and the top of the base 1 is fixedly connected with an arc-shaped baffle 709 matched with the ball 708 through a stand column. As a detailed explanation, the front side of the top of the base 1 is provided with a water source collecting box for recycling the cleaning water source.

[0038] Embodiment two,

[0039] A water conservancy project sludge dewatering equipment, comprising a base 1 and a rotating shaft 2, the rotating shaft 2 is rotatably arranged on the top of the base 1, a plurality of material holding frames 3 are fixedly arranged on the surface of the rotating shaft 2 at equal intervals, a filter plate 4 is arranged in the inside of the material holding frame 3, a ratchet wheel 16 is fixedly connected with the surface of the rotating shaft 2, a limiting frame 17 is fixedly connected with the top of the base 1 through a support, a ratchet pawl 18 matched with the ratchet wheel 16 is slidably connected in the inside of the limiting frame 17, and a second return spring 19 is fixedly connected between the ratchet pawl 18 and the limiting frame 17.

[0040] As a preferred embodiment, in order to facilitate the multi-station continuous pressure filtration of the sludge, the surface of the rotating shaft 2 is provided with a multi-station pressure filtration mechanism 5, the multi-station pressure filtration mechanism 5 comprises a plurality of spiral guide grooves 501, the plurality of spiral guide grooves 501 are arranged at equal intervals on the surface of the rotating shaft 2, a plurality of vertical guide grooves 502 are arranged at equal intervals on the surface of the rotating shaft 2, and the vertical guide grooves 502 are communicated with the spiral guide grooves 501, a reverse stop inclined block 503 is arranged in the inside of the vertical guide groove 502, an electric telescopic rod 504 is fixedly connected with the top of the base 1 through a support, an installation block 505 is fixedly connected with the bottom of the extension end of the electric telescopic rod 504, a pressure filtration plate 506 is fixedly connected with the bottom of the installation block 505 through a support column, a receiving sleeve 507 is fixedly connected with one side of the installation block 505, a guide column 508 matched with the spiral guide groove 501 is slidably connected in the inside of the receiving sleeve 507, a third return spring 509 is fixedly connected between the guide column 508 and the receiving sleeve 507, and as a detailed explanation, the top of the base 1 is provided with a sewage collecting frame matched with the left filter plate 4.

[0041] As a preferred embodiment, in order to facilitate automatic material removal of the sludge after pressure filtration, the top of the base 1 is provided with a sludge self-removal mechanism 6 matched with the filter plate 4, the sludge self-removal mechanism 6 comprises a convex sliding frame 601, which is fixedly arranged on the top of the base 1 through a support, the top of the filter plate 4 is fixedly connected with a docking frame 603, the inside of the docking frame 603 is rotatably provided with a rolling shaft 602 which is slidingly matched with the convex sliding frame 601, as a detailed explanation, the top and bottom of the docking frame 603 and inside the convex sliding frame 601 are provided with resistance-reducing balls, the surface of the material containing frame 3 is provided with a directional sliding groove 604, the surface of the filter plate 4 is fixedly connected with a directional sliding plate 605 which is slidingly matched with the directional sliding groove 604, as a detailed explanation, the left side and the front side of the top of the base 1 are installed with a fan-shaped sludge collecting hopper.

[0042] As a preferred embodiment, in order to facilitate cleaning of the filter plate 4 without stopping, the top of the base 1 is provided with an intermittent cleaning mechanism 7, the intermittent cleaning mechanism 7 comprises a water pump 701, which is fixedly arranged at the bottom of the filter plate 4 through a support, the inlet end of the water pump 701 is communicated with a water suction pipe 702, the outlet end of the water pump 701 is communicated with a spray pipe 703, and the spray pipe 703 is fixedly connected with the directional sliding plate 605, the top of the spray pipe 703 is communicated with a plurality of spray heads 704 through a branch pipe, the top of the base 1 is fixedly connected with a convex water tank 705 matched with the water suction pipe 702 through a support, the surface of the filter plate 4 is fixedly connected with a cross rod 706, the inside of the cross rod 706 is installed with a control button 707 matched with the water pump 701 through an installed groove, the surface of the control button 707 is provided with a ball 708 through a backing plate, the top of the base 1 is fixedly connected with an arc-shaped baffle 709 matched with the ball 708 through a stand column, as a detailed explanation, the front side of the top of the base 1 is installed with a water source collecting box for recycling the cleaning water source.

[0043] The surface of the convex water tank 705 is fixedly connected with an inner polygon sleeve 8 through a support, the inner polygon sleeve 8 is slidingly connected with a polygon limiting rod 9, the polygon limiting rod 9 and the inner polygon sleeve 8 are fixedly connected with a first reset spring 10, one side of the polygon limiting rod 9 is fixedly connected with an inclined plate 11, the bottom of the inclined plate 11 is fixedly connected with a sludge feeding pipe 12, one end of the sludge feeding pipe 12 is communicated with a hose 13, the top of the pressure filter plate 506 is fixedly connected with an L-shaped plate 14, the inside of the L-shaped plate 14 is rotatably connected with a roller 15.

[0044] The advantage of the second embodiment compared with the first embodiment is that by arranging the inclined plate 11, the L-shaped plate 14 and the roller 15 between the sludge feeding pipe 12 and the pressure filter plate 506, the discharging position of the sludge feeding pipe 12 is easy to automatically adjust, so that the pressure filter plate 506 can pressure filter the sludge without resistance.

[0045] The specific operation steps are as follows:

[0046] Step one, sludge feeding: through the hose 13 and sludge feeding pipe 12, the external sludge is input into the inside of the left holding frame 3, and after the sludge falls into the inside of the left holding frame 3, the local water in the sludge is automatically filtered through the filter plate 4;

[0047] Sludge plate compression dehydration: start the electric telescopic rod 504, and the electric telescopic rod 504 extends to lower the mounting block 505 and the filter plate 506, the filter plate 506 is lowered into the inside of the holding frame 3 and extrudes the remaining sludge in the inside of the holding frame 3, and the remaining water in the extruded sludge is filtered from the bottom of the filter plate 4;

[0048] Self-adaptive retraction: the filter plate 506 is lowered to simultaneously lower the L-shaped plate 14 and the roller 15, the roller 15 is lowered to extrude the inclined plate 11, so that when the filter plate 506 does not enter the inside of the holding frame 3, the sludge feeding pipe 12 can be retracted to separate from the top of the holding frame 3 by pushing the inclined plate 11;

[0049] Step two, holding frame 3 orientation rotation: 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 in the vertical guide slot 502 by the receiving sleeve 507, when the guide column 508 vertically descends in the vertical guide slot 502, it first moves along the upper inclined surface of the reverse stop inclined block 503 and descends to the bottom of the reverse stop inclined block 503, until the mounting block 505 drives the filter plate 506 to complete the dehydration of the sludge, and after the dehydration is completed, the filter plate 506 and the guide column 508 are lifted and reset by the electric telescopic rod 504, when the guide column 508 is reset, it is blocked by the bottom of the reverse stop inclined block 503, so as to make the guide column 508 enter the inside of the spiral guide slot 501 along the track of the vertical guide slot 502, by extruding the spiral guide slot 501 by the rising of the guide column 508, the shaft 2 drives several holding frames 3 and filter plates 4 to rotate at equal intervals, and by rotating the empty holding frame 3 inside, the original left holding frame 3 is replaced;

[0050] Dehydrated sludge discharging: when the above-mentioned several holding frames 3 are rotated, the original left holding frame 3 and the filter plate 4 are rotated to the front side, and when the filter plate 4 moves, the roller shaft 602 moves in the convex slide frame 601 by the abutting frame 603, because the front side of the convex slide frame 601 is convex, the roller shaft 602 moves in the convex range to pull the filter plate 4 by the abutting frame 603, so as to make the filter plate 4 slowly pull out from the bottom of the holding frame 3, and with the pulling of the filter plate 4, the dehydrated sludge on the top of the filter plate 4 is removed from the bottom of the holding frame 3;

[0051] Step three, filter plate 4 automatic cleaning: in the process of rotating and pulling to the front side in step two, the filter plate 4 synchronously drives the horizontal rod 706, the control button 707 and the ball 708 to move, the ball 708 moves to the front side and is extruded with the convex point of the arc-shaped baffle 709, prompting the ball 708 to retract and press the control button 707, the control button 707 is forced to control the water pump 701 to start, the water pump 701 starts to draw the cleaning water source in the convex water tank 705 through the water suction pipe 702, and then transfers the water source to the inside of the spray pipe 703, and then sprays the water source on the top of the filter plate 4 in the pulled state through the spray head 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 matched with the filter plates (4). The top of the base (1) is provided with an intermittent cleaning mechanism (7). 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 return spring (509) is fixedly connected between the guide post (508) and the storage sleeve (507). 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). 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.

2. The sludge dewatering equipment for water conservancy projects according to claim 1, 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.

3. The sludge dewatering equipment for water conservancy projects according to claim 1, 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).

4. The sludge dewatering equipment for water conservancy projects according to claim 3, 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).

5. The sludge dewatering equipment for water conservancy projects according to claim 1, 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).

6. 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).

7. The sludge dewatering equipment for water conservancy projects according to claim 6, characterized in that: A second return spring (19) is fixedly connected between the pawl (18) and the limiting frame (17).

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