A dredged sludge dewatering and conveying system

Abstract

This invention discloses a dredged sludge dewatering and conveying system, belonging to the field of sludge conveying technology. The system includes a flatbed barge installed in a waterway, and further comprises: a feed hopper mounted on the barge via a support frame, containing a mixing mechanism for mixing the sludge and a solidifying agent; a primary conveyor belt with its two ends respectively mounted on the barge and a bank, one end of which is positioned at the feed hopper's discharge port; a secondary conveyor belt mounted on the bank via a fixed bracket, with its inlet end connected to the outlet end of the primary conveyor belt; and a dewatering tank located on top of and connected to the feed hopper, containing a dewatering mechanism. This invention utilizes a feed hopper for mixing and feeding, and a conveyor belt for conveying the sludge, resulting in high construction efficiency, low cost, and effective reduction of the dredged sludge's moisture content, thus reducing subsequent processing costs and safety risks.

Description

Technical Field

[0001] This invention relates to the field of sludge transportation technology, and more particularly to a dredged sludge dewatering and transportation system. Background Technology

[0002] If river silt is not properly treated, it will not only reduce the river's water storage and flood control capacity, but also cause the river water to become black and smelly, and the water quality will deteriorate repeatedly.

[0003] Traditional construction methods have significant limitations in the excavation and dredging of inland waterways such as the Pinglu Canal. For example: First, using a cutter suction dredger to directly pump dredged sludge to the storage site can easily cause pipe blockage due to the clay content of the sludge, resulting in high equipment failure rates and maintenance costs; the high water content of the dredged sludge also leads to high post-treatment costs. Second, using backhoe excavators for dredging, temporary docks for unloading, and truck transport for storage requires the construction of temporary docks, temporary transport roads, and other temporary facilities, resulting in high construction and land acquisition costs and significant environmental damage; the construction process also requires multiple transfers, has low automation levels, and high construction costs. These traditional methods are unsuitable for the excavation and dredging of inland waterways such as the Pinglu Canal. To address these technical challenges... Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a dredged sludge dewatering and conveying system.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A dredged sludge dewatering and conveying system includes a flat barge installed in a waterway, and further includes:

[0007] The feed hopper is mounted on a flat barge via a support frame, and contains a mixing mechanism for mixing sludge and solidifying agent.

[0008] A primary conveyor belt, with its two ends respectively set on a flat barge and a embankment, and one end of the primary conveyor belt placed on the flat barge at the discharge port of the feed hopper;

[0009] A secondary conveyor belt, which is mounted on the embankment via fixed supports, has its inlet end connected to the outlet end of the primary conveyor belt; and

[0010] A dehydration tank is located on top of and connected to the feed hopper, and a dehydration mechanism is installed inside the dehydration tank.

[0011] Preferably, both the primary and secondary conveyor belts include a steel truss, a conveyor belt assembly, and a first motor fixed on the steel truss for driving the conveyor belt assembly. The steel truss of the secondary conveyor belt is provided with a cover, and the cover is provided with several wind caps.

[0012] Preferably, the bottom of the primary conveyor belt is provided with fixed support rods and adjustable support rods. Both the adjustable support rods and the fixed support rods are located at the bottom of the steel truss of the primary conveyor belt. The adjustable support rods are located at one end of the primary conveyor belt that is placed on the flat barge, and the fixed support rods are located at one end of the primary conveyor belt that is placed on the embankment.

[0013] Preferably, the dewatering mechanism includes a force-bearing seat fixed inside the dewatering chamber, a feeding channel is provided between the force-bearing seat and the inner wall of the dewatering chamber, a filter cloth is movably disposed on the force-bearing seat, a winding assembly for winding the filter cloth is provided on the outside of the dewatering chamber, a pressure plate is movably disposed on the top of the force-bearing seat, and a dewatering assembly for driving the pressure plate to move up and down is provided on the dewatering chamber, the dewatering assembly being connected to the winding assembly.

[0014] Preferably, the winding assembly includes support plates fixed on both sides of the dewatering tank, a first winding rod and a second winding rod rotatably connected between the two support plates, both ends of the filter cloth being connected to the first winding rod and the second winding rod respectively, a working box being provided on the support plates, a second motor being fixed on the outside of the working box, the output end of the second motor being connected to the first winding rod, a drive gear being provided on the first winding rod, and a driven gear being provided on the second winding rod that meshes with the drive gear, both the drive gear and the driven gear being rotatably disposed within the working box.

[0015] Preferably, the dehydration assembly includes a transmission rod rotatably connected to a support plate and a working box, a secondary gear is provided on the transmission rod, and an incomplete gear that intermittently meshes with the secondary gear is provided on the second winding rod. Both the secondary gear and the incomplete gear are rotatably connected inside the working box. A winding drum is provided on the transmission rod, and a pull rope is wound around the winding drum. The end of the pull rope away from the winding drum is connected to a pressure plate.

[0016] Preferably, the top of the dehydration tank is provided with a support, and a telescopic rod is provided on the support. The end of the telescopic rod away from the support is connected to the pressure plate.

[0017] Preferably, the pressure plate includes an outer frame connected to the pull rope and the telescopic rod. The bottom of the outer frame is provided with a movable groove. Movable plates are rotatably connected to both sides of the movable groove through pins. A torsion spring for resetting the movable plates is sleeved on the pin.

[0018] Preferably, the force-bearing seat has a water trough extending outward from the dehydration tank, the bottom of the water trough is inclined, and the top of the force-bearing seat has a water hole communicating with the water trough.

[0019] Preferably, a connecting plate is fixed to the bottom of the support plate, and a guide rod is provided at the end of the connecting plate away from the support plate. The filter cloth is slidably connected to the guide rod. A crank rod is provided on the transmission rod, and a movable ring is sleeved on the crank rod. A swing rod is provided on the movable ring, and a lifting plate is movably connected at the end of the swing rod away from the movable ring. The lifting plate slides up and down on the connecting plate via a slider. Connecting rods are provided on both sides of the lifting plate, and an abutment rod that moves against the filter cloth is provided at the end of the connecting rod away from the lifting plate.

[0020] Compared with the prior art, the present invention provides a dredged sludge dewatering and conveying system, which has the following beneficial effects:

[0021] 1. This dredged sludge dewatering and conveying system uses a feed hopper to mix and feed the sludge, and a conveyor belt to transport the sludge. It has high construction efficiency and low cost, and can effectively reduce the water content of the dredged sludge, thereby reducing the cost of subsequent treatment and safety risks.

[0022] 2. This dredged sludge dewatering and conveying system uses a secondary conveyor belt with a cover. The dredged sludge reacts with a solidifying agent (such as quicklime) to generate heat and evaporate moisture. The wind cap rotates automatically to quickly discharge the evaporated moisture, forming an effective dredged sludge dewatering system. By utilizing the heat island effect, dewatering is accelerated during transportation, reducing the moisture content of the dredged sludge and lowering the cost of subsequent storage site reinforcement and landslide risk.

[0023] 3. This dredged sludge dewatering and conveying system uses fixed struts on land and adjustable struts on water via a primary conveyor belt. This ensures that the sludge conveying operation is not affected by water level fluctuations, effectively guaranteeing the effective construction time and reducing the damage rate of the conveyor belt.

[0024] 4. The dredged sludge dewatering and conveying system uses a pressure plate in the dewatering tank to press down the sludge on the filter cloth, squeezing out the water contained in the sludge. The squeezed water passes through the filter cloth and the water flow holes in sequence and is discharged from the water flow channel, reducing the water content of the dredged sludge and reducing the cost of subsequent storage site reinforcement and the risk of landslides.

[0025] 5. This dredged sludge dewatering and conveying system guides the conveying direction of the filter cloth by setting guide rods, so that the filter cloth enters the river water after being conveyed with sludge. The river water washes away the small amount of sludge attached to the filter cloth due to the pressure of the pressure plate, and automatically cleans the rolled-up filter cloth, reducing the difficulty of subsequent cleaning by the staff and allowing the filter cloth to be quickly reused. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the present invention;

[0027] Figure 2 For the present invention Figure 1 A partially enlarged structural diagram of section A in the middle;

[0028] Figure 3 This is a schematic diagram of the structure of the feed hopper and dewatering tank of the present invention;

[0029] Figure 4 This is a schematic cross-sectional view of the dehydration tank of the present invention. Figure 1 ;

[0030] Figure 5 This is a schematic cross-sectional view of the dehydration tank of the present invention. Figure 2 ;

[0031] Figure 6 For the present invention Figure 5 A partially enlarged structural diagram of section B in the middle;

[0032] Figure 7 For the present invention Figure 5 A magnified schematic diagram of part C in the middle.

[0033] In the diagram: 1. Flatbed barge; 101. Support frame; 2. Feed hopper; 3. Primary conveyor belt; 301. Fixed support rod; 302. Adjustable support rod; 4. Secondary conveyor belt; 5. Fixed bracket; 6. Dewatering tank; 601. Discharge channel; 7. Steel truss; 701. Conveyor belt assembly; 702. First motor; 8. Cover; 801. Vent; 9. Load-bearing seat; 901. Flow trough; 902. Flow hole; 10. Filter cloth; 11. Pressure plate; 111. Outer frame; 112. Movable trough; 113. Movable plate; 12. Support plate ; 121. First winding rod; 1211. Drive gear; 122. Second winding rod; 1221. Driven gear; 1222. Incomplete gear; 13. Working box; 14. Second motor; 15. Transmission rod; 151. Secondary gear; 152. Winding drum; 1521. Pull rope; 16. Support; 161. Telescopic rod; 17. Connecting plate; 171. Guide rod; 18. Crank rod; 181. Moving ring; 182. Swing rod; 183. Lifting plate; 184. Connecting rod; 185. Abutment rod; 19. Embankment. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0035] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0037] Example: Refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 A dredged sludge dewatering and conveying system includes a flat barge 1 installed in a waterway, and further includes:

[0038] Feed hopper 2 is mounted on flat barge 1 via support frame 101. Feed hopper 2 contains a mixing mechanism for mixing sludge and solidifying agent.

[0039] The primary conveyor belt 3 is set at both ends on the flat barge 1 and the embankment 19 respectively. One end of the primary conveyor belt 3 is placed at the discharge port of the feed hopper 2.

[0040] A secondary conveyor belt 4 is mounted on the embankment 19 via a fixed support 5. The inlet end of the secondary conveyor belt 4 is connected to the outlet end of the primary conveyor belt 3.

[0041] The dewatering tank 6 is located on top of the feed hopper 2 and is connected to the feed hopper 2. The dewatering tank 6 is equipped with a dewatering mechanism.

[0042] Specifically, the flat barge 1 is positioned on the waterway surface, eliminating the need for temporary docks and enabling the transport of dredged silt. This saves on temporary construction costs and has a wider range of applications. Compared to cutter suction dredging, using a backhoe or grab barge to dredge silt, which relies solely on the grab bucket of an excavator or excavator, not only minimizes energy consumption but also avoids environmental damage to the work area. Furthermore, the low moisture content of the silt grabbed by the grab effectively reduces the cost of subsequent storage site reinforcement and the risk of landslides. The backhoe or grab barge transports the dredged silt to a feed hopper equipped with a mixing function. Within 2, the dredged sludge undergoes preliminary dewatering in the dewatering box 6 before entering the feed hopper 2. After preliminary dewatering, the sludge enters the feed hopper 2, where quicklime and other solidifying agents are automatically added and forcibly mixed. The mixed material is then unloaded onto the primary conveyor belt 3, which transports the dredged sludge to the embankment 19 and unloads it onto the secondary conveyor belt 4. The secondary conveyor belt 4 transports the sludge to a designated storage area. This eliminates the need to construct temporary roads with high load-bearing capacity, thereby significantly reducing road construction and land acquisition costs and minimizing environmental damage.

[0043] Reference Figure 1 and Figure 2 As a preferred technical solution of the present invention, both the primary conveyor belt 3 and the secondary conveyor belt 4 include a steel truss 7, a conveyor belt assembly 701, and a first motor 702 fixed on the steel truss 7 for driving the conveyor belt assembly 701. A cover 8 is provided on the steel truss 7 of the secondary conveyor belt 4, and a plurality of wind caps 801 are provided on the cover 8.

[0044] Specifically, when the primary conveyor belt 3 and the secondary conveyor belt 4 are working, their respective first motors 702 are controlled to drive the conveyor belt assembly 701 to transport the dredged sludge on the conveyor belt. A cover 8 is installed on the upper side of the steel truss 7 of the secondary conveyor belt 4 through square steel. The dredged sludge reacts with the solidifying agent to generate heat and evaporate moisture. The wind cap 801 rotates on its own to quickly discharge the evaporated moisture, forming an effective dredged sludge dewatering system. It can utilize the heat island effect to accelerate dewatering during transportation, reduce the moisture content of the dredged sludge, and reduce the subsequent reinforcement cost of the storage site and the risk of landslides.

[0045] Reference Figure 1 and Figure 2 As a preferred technical solution of the present invention, the bottom of the primary conveyor belt 3 is provided with a fixed support rod 301 and an adjustable support rod 302. Both the adjustable support rod 302 and the fixed support rod 301 are provided at the bottom of the steel truss 7 of the primary conveyor belt 3. The adjustable support rod 302 is provided at one end of the primary conveyor belt 3 that is placed on the flat barge 1, and the fixed support rod 301 is provided at one end of the primary conveyor belt 3 that is placed on the embankment 19.

[0046] Specifically, the height of one end of the primary conveyor belt 3 is adjusted by using a fixed support rod 301 on land and an adjustable support rod 302 on water. This ensures that the sludge conveying construction is not affected by the rise and fall of water level, effectively guarantees the effective construction time, reduces the damage rate of the conveyor belt, and prevents the sludge dewatering and conveying system from failing to work due to the internal force generated by the height difference between the land and water parts of the conveyor belt.

[0047] Reference Figures 3-7 As a preferred technical solution of the present invention, the dewatering mechanism includes a force-bearing seat 9 fixedly disposed in the dewatering box 6, a feeding channel 601 provided between the force-bearing seat 9 and the inner wall of the dewatering box 6, a filter cloth 10 movably disposed on the force-bearing seat 9, a winding assembly for winding the filter cloth 10 provided on the outside of the dewatering box 6, a pressure plate 11 movably disposed on the top of the force-bearing seat 9, and a dewatering assembly for driving the pressure plate 11 to move up and down on the dewatering box 6, the dewatering assembly being connected to the winding assembly.

[0048] Furthermore, the winding assembly includes support plates 12 fixed on both sides of the dewatering tank 6. A first winding rod 121 and a second winding rod 122 are rotatably connected between the two support plates 12. The two ends of the filter cloth 10 are respectively connected to the first winding rod 121 and the second winding rod 122. A working box 13 is provided on the support plate 12. A second motor 14 is fixed on the outside of the working box 13. The output end of the second motor 14 is connected to the first winding rod 121. A drive gear 1211 is provided on the first winding rod 121. A driven gear 1221 that meshes with the drive gear 1211 is provided on the second winding rod 122. Both the drive gear 1211 and the driven gear 1221 are rotatably arranged inside the working box 13.

[0049] Furthermore, the dehydration assembly includes a transmission rod 15 rotatably connected to the support plate 12 and the working box 13. A secondary gear 151 is provided on the transmission rod 15. An incomplete gear 1222 that intermittently meshes with the secondary gear 151 is provided on the second winding rod 122. Both the secondary gear 151 and the incomplete gear 1222 are rotatably connected inside the working box 13. A winding drum 152 is provided on the transmission rod 15. A pull rope 1521 is wound and connected to the winding drum 152. The end of the pull rope 1521 away from the winding drum 152 is connected to the pressure plate 11.

[0050] Furthermore, a support 16 is provided on the top of the dehydration tank 6, and a telescopic rod 161 is provided on the support 16. The end of the telescopic rod 161 away from the support 16 is connected to the pressure plate 11.

[0051] Furthermore, the pressure plate 11 includes an outer frame 111 connected to the pull rope 1521 and the telescopic rod 161. The bottom of the outer frame 111 is provided with a movable groove 112. Both sides of the movable groove 112 are rotatably connected to movable plates 113 by pins. A torsion spring for resetting the movable plates 113 is sleeved on the pin.

[0052] Furthermore, a water trough 901 extending outward from the dehydration tank 6 is provided inside the force-bearing seat 9. The bottom of the water trough 901 is inclined, and a water hole 902 communicating with the water trough 901 is provided on the top of the force-bearing seat 9.

[0053] Specifically, the backhoe or grab boat transports the dredged sludge to the top of the dewatering tank 6. The dredged sludge falls onto the pressure plate 11 and exerts a force on the movable plate 113. The movable plate 113 rotates around the pivot pin under this force, causing the movable plates 113 on both sides of the pressure plate 11 to flip downwards. The dredged sludge falls between the two movable plates 113 and onto the filter cloth 10. While the backhoe or grab boat continues to grab sludge from the channel, no more sludge falls onto the movable plate 113. The movable plate 113 then returns to its original position and rotates under the action of a torsion spring. The filter cloth 10 is made of a tough and wear-resistant material and has a structure similar to the small holes in gauze. When the dewatering mechanism is working, it controls the operation of the second motor 14. Motor 14 drives the first winding rod 121 to rotate, releasing the filter cloth 10 wound on it. When the first winding rod 121 rotates, the outer driving gear 1211 meshes with the driven gear 1221 on the second winding rod 122, and the second winding rod 122 winds up the filter cloth 10 released by the first winding rod 121, causing the filter cloth 10 to slide on the force seat 9. The filter cloth 10 conveys the dredged sludge into the dewatering tank 6. When the second winding rod 122 rotates, the outer incomplete gear 1222 intermittently meshes with the secondary gear 151 on the transmission rod 15. As the incomplete gear 1222 rotates, it no longer meshes with the secondary gear 151. 51 meshes, the auxiliary gear 151 no longer meshes with the incomplete gear 1222, the pressure plate 11 is made of steel plate or other heavy material, the pressure plate 11 moves down under its own weight, the pressure plate 11 presses down on the dredged sludge on the filter cloth 10. Because there is easily deformable sludge between the pressure plate 11 and the filter cloth 10, the pressing work of the pressure plate 11 does not affect the winding work of the filter cloth 10. The water contained in the dredged sludge is squeezed out, and the squeezed water passes through the filter cloth 10, the water hole 902 and is discharged from the water channel 901 in sequence, reducing the water content of the dredged sludge, reducing the subsequent reinforcement cost of the storage site and the risk of landslide. As the incomplete gear 1222 rotates, the incomplete gear 1 222 re-engages with the secondary gear 151, which drives the winding drum 152 on the transmission rod 15 to rotate. The winding drum 152 winds up the pull rope 1521, which in turn lifts the downward-moving pressure plate 11, causing the pressure plate 11 to move vertically upward within the dewatering tank 6. The telescopic rod 161 guides the movement direction of the pressure plate 11, and the upward-moving pressure plate 11 ensures that the movable plate 113 has sufficient downward rotation space when the sludge falls onto it. As the filter cloth 10 conveys the sludge, the sludge is pressed down by the pressure plate 11 and then conveyed to the discharge channel 601. The initially dewatered sludge enters the feed hopper 2 from the discharge channel 601 for subsequent solidification and conveying.

[0054] Reference Figures 3-7 As a preferred technical solution of the present invention, a connecting plate 17 is fixedly provided at the bottom of the support plate 12. A guide rod 171 is provided at one end of the connecting plate 17 away from the support plate 12. The filter cloth 10 is slidably connected to the guide rod 171. A crank rod 18 is provided on the transmission rod 15. A movable ring 181 is sleeved on the crank rod 18. A swing rod 182 is provided on the movable ring 181. A lifting plate 183 is movably connected at one end of the swing rod 182 away from the movable ring 181. The lifting plate 183 slides up and down on the connecting plate 17 by a slider. A connecting rod 184 is provided on both sides of the lifting plate 183. An abutment rod 185 is provided at one end of the connecting rod 184 away from the lifting plate 183, which abuts against the filter cloth 10.

[0055] Specifically, a guide rod 171 is connected to the bottom of the support plate 12 via a connecting plate 17. The guide rod 171 is placed in the water body of the waterway, and its position is lower than the lowest water level of the waterway. This allows the filter cloth 10 to slide on the guide rod 171 when it is rolled up. During the rolling process, the filter cloth 10 passes through the water body, and the river water washes away the small amount of silt attached to the filter cloth 10 due to the pressure of the pressure plate 11, thus automatically cleaning the rolled-up filter cloth 10. At the same time, when the transmission rod 15 rotates, it drives the crank rod 18 to rotate. When the crank rod 18 rotates, it drives the swing rod 182 to move through the movable ring 181. The swing rod 182 drives the lifting plate 183 to slide up and down on the outside of the connecting plate 17. The lifting plate 183 drives the abutment rod 185 through the connecting rod 184 to push the filter cloth 10 up and down, thereby causing the filter cloth 10 to swing back and forth, accelerating the cleaning effect of the water body in the waterway on the filter cloth 10, reducing the difficulty of subsequent cleaning by the staff, and allowing the filter cloth 10 to be quickly put back into use.

[0056] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A dredged sludge dewatering and conveying system, comprising a flat barge (1) installed within a waterway, characterized in that, Also includes: Feed hopper (2), which is mounted on a flat barge (1) via a support frame (101), and contains a mixing mechanism for mixing sludge and solidifying agent; A primary conveyor belt (3) is provided at both ends on a flat barge (1) and a embankment (19), with one end of the primary conveyor belt (3) placed at the discharge port of the feed hopper (2). A secondary conveyor belt (4) is mounted on the embankment (19) via a fixed bracket (5), and the inlet end of the secondary conveyor belt (4) is connected to the outlet end of the primary conveyor belt (3); and A dehydration tank (6) is located on top of the feed hopper (2) and is connected to the feed hopper (2). A dehydration mechanism is provided inside the dehydration tank (6). The dewatering mechanism includes a force-bearing seat (9) fixed inside the dewatering box (6), a feeding channel (601) is provided between the force-bearing seat (9) and the inner wall of the dewatering box (6), a filter cloth (10) is movably arranged on the force-bearing seat (9), a winding assembly for winding the filter cloth (10) is provided on the outside of the dewatering box (6), a pressure plate (11) is movably arranged on the top of the force-bearing seat (9), and a dewatering assembly for driving the pressure plate (11) to move up and down is provided on the dewatering box (6). The dewatering assembly is connected to the winding assembly. The winding assembly includes support plates (12) fixed on both sides of the dehydration tank (6). A first winding rod (121) and a second winding rod (122) are rotatably connected between the two support plates (12). The two ends of the filter cloth (10) are respectively connected to the first winding rod (121) and the second winding rod (122). A working box (13) is provided on the support plate (12). A second motor (14) is fixed on the outside of the working box (13). The output end of the second motor (14) is connected to the first winding rod (121). A drive gear (1211) is provided on the first winding rod (121). A driven gear (1221) meshes with the drive gear (1211) on the second winding rod (122). Both the drive gear (1211) and the driven gear (1221) are rotatably arranged inside the working box (13). The dehydration assembly includes a transmission rod (15) rotatably connected to a support plate (12) and a working box (13). A secondary gear (151) is provided on the transmission rod (15). An incomplete gear (1222) that intermittently meshes with the secondary gear (151) is provided on the second winding rod (122). Both the secondary gear (151) and the incomplete gear (1222) are rotatably connected inside the working box (13). A winding drum (152) is provided on the transmission rod (15). A pull rope (1521) is wound around the winding drum (152). One end of the pull rope (1521) away from the winding drum (152) is connected to a pressure plate (11). A connecting plate (17) is fixedly provided at the bottom of the support plate (12). A guide rod (171) is provided at the end of the connecting plate (17) away from the support plate (12). The filter cloth (10) is slidably connected to the guide rod (171). A crank rod (18) is provided on the transmission rod (15). A movable ring (181) is sleeved on the crank rod (18). A swing rod (182) is provided on the movable ring (181). A lifting plate (183) is movably connected at the end of the swing rod (182) away from the movable ring (181). The lifting plate (183) slides up and down on the connecting plate (17) by a slider. A connecting rod (184) is provided on both sides of the lifting plate (183). An abutment rod (185) is provided at the end of the connecting rod (184) away from the lifting plate (183) to move against the filter cloth (10).

2. The dredged sludge dewatering and conveying system according to claim 1, characterized in that, Both the primary conveyor belt (3) and the secondary conveyor belt (4) include a steel truss (7), a conveyor belt assembly (701), and a first motor (702) fixed on the steel truss (7) for driving the conveyor belt assembly (701). A cover (8) is provided on the steel truss (7) of the secondary conveyor belt (4), and several wind caps (801) are provided on the cover (8).

3. The dredged sludge dewatering and conveying system according to claim 2, characterized in that, The bottom of the primary conveyor belt (3) is provided with a fixed support rod (301) and an adjustable support rod (302). Both the adjustable support rod (302) and the fixed support rod (301) are located at the bottom of the steel truss (7) of the primary conveyor belt (3). The adjustable support rod (302) is located at one end of the primary conveyor belt (3) placed on the flat barge (1), and the fixed support rod (301) is located at one end of the primary conveyor belt (3) placed on the embankment (19).

4. The dredged sludge dewatering and conveying system according to claim 3, characterized in that, The top of the dehydration tank (6) is provided with a support (16), and a telescopic rod (161) is provided on the support (16). The end of the telescopic rod (161) away from the support (16) is connected to the pressure plate (11).

5. The dredged sludge dewatering and conveying system according to claim 4, characterized in that, The pressure plate (11) includes an outer frame (111) connected to the pull rope (1521) and the telescopic rod (161). The bottom of the outer frame (111) is provided with a movable groove (112). Both sides of the movable groove (112) are rotatably connected to movable plates (113) through pins. A torsion spring for resetting the movable plates (113) is sleeved on the pins.

6. The dredged sludge dewatering and conveying system according to claim 5, characterized in that, The force-bearing seat (9) has a water trough (901) extending outward to the dehydration tank (6). The bottom of the water trough (901) is inclined. The top of the force-bearing seat (9) has a water hole (902) communicating with the water trough (901).

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