Port navigation channel dredging apparatus
By installing sludge separation components and drainage pipes on the dredging vessel, sludge-water separation was achieved, solving the problems of high sludge water content and frequent dredging vessel trips in existing devices, and improving dredging efficiency.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- CHINA HARBOUR ENGINEERING
- Filing Date
- 2025-06-27
- Publication Date
- 2026-05-15
AI Technical Summary
Existing port and waterway dredging equipment suffers from problems such as high water content in silt, easy overloading of ship holds, high frequency of dredging vessel trips, and inconvenience in unloading and transfer.
Install sludge separation components and drainage pipes on the dredging vessel. Separate mud and water through separation tanks, sewage collection tanks, and sludge collection tanks to reduce the water content of the sludge. Discharge sewage directly through the drainage pipes and collect sludge in the sludge collection tanks to reduce the frequency of dredging vessel trips.
It effectively reduced the water content of the silt, extended the time it took for the silt container to be full, reduced the frequency of the dredging vessel's round trip to the shore, and improved the dredging efficiency.
Smart Images
Figure CN2025104274_15052026_PF_FP_ABST
Abstract
Description
Port and waterway dredging equipment Technical Field
[0001] This invention relates to the field of waterway dredging. More specifically, this invention relates to a port waterway dredging device. Background Technology
[0002] Over time, silt accumulates at the bottom of port channels, gradually reducing their depth and affecting their navigation capacity. Therefore, regular dredging operations are necessary.
[0003] Current port and waterway dredging is generally carried out using dredging vessels. These vessels use underwater suction heads to siphon silt into their holds. Once the holds are full, the silt is transported to the shore, where it is unloaded manually or mechanically into designated silt storage areas. This method has two drawbacks: firstly, the high water content of the silt makes the holds easily fill, increasing the frequency of the dredging vessels' trips to the shore; and secondly, unloading and transferring the silt is cumbersome. Summary of the Invention
[0004] The purpose of this invention is to provide a port and waterway dredging device to at least solve the above-mentioned problems.
[0005] To achieve the objectives and other advantages of this invention, a port channel dredging device is provided, which is fixed on a dredging vessel and includes: a suction pipe, one end of which is connected to a suction head and the other end of which is connected to at least two discharge pipes, each discharge pipe being provided with a discharge valve; at least two sludge separation components, which are correspondingly arranged below the discharge pipes, each sludge separation component including a separation box, a sewage collection box and a sludge collection box arranged sequentially from top to bottom, the separation box and the sewage collection box being connected through a screen hole at the bottom of the separation box, the separation box and the sludge collection box being connected through a discharge channel provided through the bottom of the sewage collection box and the separation box, the top of the discharge channel being provided with a discharge gate; and a drain pipe, which is located on the lower outer side of the sewage collection box and communicates with the interior of the sewage collection box, the two ends of the drain pipe extending to both sides of the dredging vessel.
[0006] Preferably, the port channel dredging device further includes: a support assembly fixedly mounted on the dredging vessel, comprising a support plate, which is an inverted U-shaped plate, with openings corresponding to the sludge separation assembly passing through the horizontal plate of the support plate, the separation box fixedly mounted above the openings on the horizontal plate, and the sewage collection box fixedly mounted below the openings on the horizontal plate; and a support frame, which is an inverted U-shaped frame fixedly mounted on the support plate, with pipe clamps fixedly mounted on the horizontal part of the support frame, and the suction pipe being supported and fixed on the support frame by the pipe clamps.
[0007] Preferably, the port channel dredging device further includes: a first extrusion assembly comprising a pair of first extrusion plates disposed on the left and right sides inside the separation box, each first extrusion plate being driven by a first linear actuator disposed on the same side outside the separation box; the front and rear sides of the first extrusion plates are provided with a plurality of first openings at equal intervals along their height direction, each first opening being horizontally arranged and communicating with the outside; each first opening is provided with a first airbag on its upper and lower sides along its length direction, and a first exhaust valve is provided at one end of the first airbag near the middle of the first extrusion plate, and a first intake valve is provided at the other end; a pair of second extrusion plates disposed on the front and rear sides inside the separation box, each second extrusion plate being driven by a second linear actuator disposed on the same side outside the separation box; the left and right sides of the second extrusion plates are provided with a plurality of first openings at equal intervals along their height direction. Multiple second openings are provided at equal intervals. Each second opening is horizontally arranged and communicates with the outside. Each second opening has a second airbag on its upper and lower sides along its length. A second exhaust valve is provided at one end of the second airbag near the middle of the second extrusion plate, and a second intake valve is provided at the other end. The left and right sides of the bottom of the second extrusion plate are provided with telescopic plates, which can extend and retract along the length of the second extrusion plate. The first opening and the second opening are staggered. The adjacent ends of the first extrusion plate and the second extrusion plate are configured to be able to be inserted and interlocked with each other through the first opening and the second opening. Multiple filter holes are provided at intervals on the non-first opening part of the first extrusion plate and the non-second opening part of the second extrusion plate. The inlet of the sludge discharge channel is located in the middle of the separation box.
[0008] Preferably, the port channel dredging device further includes: a second extrusion assembly, which is disposed above the separation box and opposite to the inlet of the dredging channel; the second extrusion assembly includes a third linear actuator, which is fixed on the horizontal part of the support frame; and an extrusion plate, which is horizontally disposed below the third linear actuator and fixedly connected to its output end.
[0009] Preferably, the sludge discharge gate includes two doors, the opposite sides of which are pivotally connected to the sidewall of the sludge discharge channel, and at least two fourth linear actuators, which are fixed outside the sludge discharge channel and located on the same side as the pivoting side of the doors. Each fourth linear actuator is located below the door, and the output end of the fourth linear actuator is configured to extend into the sludge discharge channel and control the opening and closing of the sludge discharge gate.
[0010] Preferably, a support box is fixedly installed below the sewage collection box, the support box is fixed on the deck of the dredging vessel, the front and rear sides of the support box are open, and the sludge collection box is slidably installed inside the support box.
[0011] Preferably, the bottom of the sludge collection box is provided with an upwardly recessed limiting groove, the limiting groove is arranged along the front and rear direction of the sludge collection box, and the deck is provided with a limiting rail that cooperates with the limiting groove.
[0012] Preferably, the end of the limiting slide rail is fixed with a vertically upward anchor rod, the rear side wall of the sludge collection box is provided with an installation groove, a connecting plate is hinged in the installation groove, and the connecting plate is provided with an anchor hole that cooperates with the anchor rod.
[0013] The present invention has at least the following beneficial effects:
[0014] This invention adds a sludge separation component and a drainage pipe below the sludge discharge pipe. The sludge separation component separates the sludge from the water in the channel sludge sucked up by the suction head, thereby reducing the water content of the sludge. The separated sludge is collected in a sludge collection box, which facilitates the subsequent unloading and transfer of the sludge. The separated wastewater is collected in a wastewater collection box and then discharged directly into the river through the drainage pipe. This extends the time required for the sludge to fill the container, effectively reducing the frequency of dredging vessels traveling to and from the shore and improving dredging efficiency.
[0015] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description
[0016] Figure 1 is a schematic diagram of the overall structure of a port channel dredging device according to an embodiment of the present invention;
[0017] Figure 2 is a cross-sectional view of a sludge separation component according to an embodiment of the present invention;
[0018] Figure 3 is an enlarged view of part A in Figure 2;
[0019] Figure 4 is a top view of the separation box according to an embodiment of the present invention. Detailed Implementation
[0020] The present invention will now be described in further detail with reference to the embodiments and accompanying drawings, so that those skilled in the art can implement it based on the description.
[0021] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.
[0022] It should be noted that, unless otherwise specified, the experimental methods described in the following embodiments are all conventional methods, and the reagents and materials described are all commercially available unless otherwise specified. In the description of this invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and 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 this invention.
[0023] As shown in Figures 1 to 4, an embodiment of the present invention provides a port channel dredging device, which is fixed on a dredging vessel 1 and includes: a suction pipe 2, one end of which is connected to a suction head (not shown), and the other end of which is connected to at least two discharge pipes 3, each discharge pipe 3 being provided with a discharge valve 4; at least two sludge separation components, which are correspondingly arranged below the discharge pipes 3, each sludge separation component including a separation box 5, a sewage collection box 6, and a sludge collection box 7 arranged sequentially from top to bottom, the separation box 5 and the sewage collection box 6 being connected through a screen hole 51 at the bottom of the separation box 5, the separation box 5 and the sludge collection box 7 being connected through a discharge channel 8 provided through the bottom of the sewage collection box 6 and the separation box 5, the top of the discharge channel 8 being provided with a discharge gate 9; and a drain pipe 10, which is located on the lower outer side of the sewage collection box 6 and communicates with the interior of the sewage collection box 6, the two ends of the drain pipe 10 extending to both sides of the dredging vessel 1.
[0024] In the above embodiments, the port channel dredging device includes a suction pipe 2, a sludge separation component, and a drainage pipe 10. One end of the suction pipe 2 is connected to a suction head placed underwater, and the other end is placed above the dredging vessel 1, preferably along the width direction of the dredging vessel 1 (left-right direction in the figure). The other end of the suction pipe 2 is connected to at least two discharge pipes 3, as shown in Figure 1, and each discharge pipe 3 is provided with a discharge valve 4, which is used to control the opening and closing of the discharge pipe 3. The number of sludge separation components corresponds one-to-one with the number of sludge discharge pipes 3. Each sludge separation component is fixed on the deck of the dredging vessel 1 and located below the sludge discharge pipe 3. Each sludge separation component includes a separation box 5, a sewage collection box 6, and a sludge collection box 7 arranged sequentially from top to bottom. The tops of the separation box 5, the sewage collection box 6, and the sludge collection box 7 are preferably all open to save materials and reduce the weight of the sludge separation component. The top of the separation box 5 is opposite to the corresponding sludge discharge pipe 3. The separation box 5 and the sewage collection box 6 are connected by a screen hole 51 at the bottom of the separation box 5. The separation box 5 and the sludge collection box 7 are connected by a sludge discharge channel 8 that runs through the bottom of the sewage collection box 6 and the separation box 5. The top and bottom of the sludge discharge channel 8 are both open, and the top of the sludge discharge channel 8 is provided with a sludge discharge door 9. The drain pipe 10 is located on the lower outer side of the sewage collection tank 6 along the width direction of the dredging vessel 1 and is connected to the interior of the sewage collection tank 6. Both ends of the drain pipe 10 extend to the sides of the dredging vessel 1 to discharge the sewage separated from the silt directly into the waterway.
[0025] In operation, the silt in the waterway is sucked up by the suction head and introduced into the separation box 5 through the suction pipe 2 and the discharge pipe 3. Under the action of gravity, the silt undergoes mud-water separation in the separation box 5. The separated wastewater falls into the wastewater collection box 6 through the screen holes 51 at the bottom of the separation box 5. The wastewater in the wastewater collection box 6 is then discharged directly into the waterway through the drain pipe 10. The separated silt falls into the silt collection box 7 through the discharge gate 9 and the discharge channel 8, where it is collected and transported. Multiple silt separation components do not operate simultaneously, and the discharge gate 9 is opened only after the silt separation components stop operating (the corresponding drain valve 4 is closed for a preset time) to collect the separated silt.
[0026] This invention adds a sludge separation component and a drainage pipe below the sludge discharge pipe. The sludge separation component separates the sludge from the water in the channel sludge sucked up by the suction head, thereby reducing the water content of the sludge. The separated sludge is collected in a sludge collection box, which facilitates the subsequent unloading and transfer of the sludge. The separated wastewater is collected in a wastewater collection box and then discharged directly into the river through the drainage pipe. This extends the time required for the sludge to fill the container, effectively reducing the frequency of dredging vessels traveling to and from the shore and improving dredging efficiency.
[0027] In another embodiment, the port channel dredging device further includes: a support assembly fixedly mounted on the dredging vessel 1, comprising a support plate 11, which is an inverted U-shaped plate, with openings corresponding to the sludge separation assembly passing through the horizontal plate of the support plate 11, the separation box 5 fixedly mounted above the openings on the horizontal plate, and the sewage collection box 6 fixedly mounted below the openings on the horizontal plate; and a support frame 12, which is an inverted U-shaped frame fixedly mounted on the support plate 11, with pipe clamps 13 fixedly mounted on the horizontal portion of the support frame 12, and the suction pipe 2 supported and fixedly mounted on the support frame 12 by the pipe clamps 13.
[0028] In this embodiment, the port channel dredging device also includes a support assembly, which preferably includes a support plate 11, a support frame 12, and a pipe clamp 13. The support plate 11, the support frame 12, and the pipe clamp 13 support and fix the separation box 5, the sewage collection box 6, and the suction pipe 2, resulting in a stable structure and convenient assembly and disassembly.
[0029] In another embodiment, the port channel dredging device further includes: a first extrusion assembly comprising a pair of first extrusion plates 14 disposed on the left and right sides of the separation box 5, each first extrusion plate 14 being driven by a first linear actuator 15 disposed on the same side outside the separation box 5; the front and rear sides of the first extrusion plate 14 are provided with a plurality of first openings at equal intervals along its height direction, each first opening being horizontally arranged and communicating with the outside; each first opening is provided with a first airbag on its upper and lower sides along its length direction, and a first exhaust valve is provided at one end of the first airbag near the middle of the first extrusion plate, and a first intake valve is provided at the other end; a pair of second extrusion plates 16 disposed on the front and rear sides of the separation box 5, each second extrusion plate 16 being driven by a second linear actuator 17 disposed on the same side outside the separation box 5; the left and right sides of the second extrusion plate 16 are provided with a plurality of first openings at equal intervals along its height direction. Multiple second openings are spaced apart, each second opening is horizontally positioned and communicates with the outside. Each second opening has a second airbag 18 on its upper and lower sides along its length. A second exhaust valve is provided at one end of the second airbag 18 near the middle of the second extrusion plate 16, and a second intake valve is provided at the other end. The left and right sides of the bottom of the second extrusion plate 16 are provided with telescopic plates 19, which can be sealed and extended along the length of the second extrusion plate 16. The first opening and the second opening are staggered. The adjacent ends of the first extrusion plate 14 and the second extrusion plate 16 are configured to be able to be inserted and engaged with each other through the first opening and the second opening. Multiple filter holes 20 are spaced apart on the non-first opening portion of the first extrusion plate 14 and the non-second opening portion of the second extrusion plate 16. The inlet of the sludge discharge channel 8 is located in the middle of the separation box 5.
[0030] In this embodiment, the port channel dredging device further includes a first squeezing assembly, which includes a pair of first squeezing plates 14 and a pair of second squeezing plates 16 disposed inside the separation box 5. The pair of first squeezing plates 14, the pair of second squeezing plates 16 and the bottom of the separation box 5 together form a cuboid structure. The pair of first squeezing plates 14 and the pair of second squeezing plates 16 are driven by a first linear driver 15 and a second linear driver 17 disposed outside the separation box 5 to move along the left-right direction or the front-back direction of the separation box 5, so as to change the size of the cuboid structure formed by the enclosure, that is, to make the pair of first squeezing plates 14 and the pair of second squeezing plates 16 converge towards the middle of the separation box 5 to squeeze the sludge. The squeezed sewage flows into the sewage collection box 6 through the filter holes 20 disposed on the first squeezing plates 14 and the second squeezing plates 16 and the sieve holes 51 disposed at the bottom of the separation box 5. That is, the first squeezing assembly drives the pair of first squeezing plates 14 and the pair of second squeezing plates 16 to squeeze the sludge through the first linear driver 15 and the second linear driver 17, which effectively improves the efficiency of sewage separation from the sludge.
[0031] Specifically, in the initial state, a pair of first extrusion plates 14 are in contact with the left and right sidewalls of the separation chamber 5, respectively, and the front and rear sides of the first extrusion plates 14 are in contact with the front and rear sidewalls of the separation chamber 5, respectively. The bottom surface of the first extrusion plates 14 is in contact with the bottom surface of the separation chamber 5. A pair of second extrusion plates 16 are in contact with the front and rear sidewalls of the separation chamber 5, respectively, and the left and right sides of the second extrusion plates 16 are in contact with the pair of first extrusion plates 14, respectively. The bottom surface of the second extrusion plates 16 is in contact with the bottom surface of the separation chamber 5. The end of the first extrusion plate 14 located between the two first openings is inserted into the corresponding second opening of the second extrusion plate 16. The end of the second extrusion plate 16 located between the two second openings is inserted into... The first extrusion plate 16 is inserted into the first opening corresponding to the first extrusion plate 14, and the end of the second extrusion plate 16 located between the telescopic plate 19 and the lowest second opening is inserted into the lowest first opening of the first extrusion plate 14. The bottom surface of the telescopic plate 19 contacts the bottom surface of the separation box 5, and the free end of the telescopic plate 19 contacts the bottom of the first extrusion plate 14. The first airbag and the second airbag 18 are filled with gas, sealing the first opening and the second opening. Preferably, the length of the first opening is about 1 / 4 of the length of the first extrusion plate 14, the length of the second opening is about 1 / 4 of the length of the second extrusion plate 16, and the maximum telescopic distance of the telescopic plate 19 is greater than the length of the second opening, so as not to hinder the first extrusion plate 14 from moving towards the first opening. It is advisable to move the middle of the separation box 5; when the separation box 5 is filled with a preset amount of channel silt, first open the first exhaust valve and the second exhaust valve, and then control the first linear actuator 15 and the second linear actuator 17 to push a pair of first extrusion plates 14 and a pair of second extrusion plates 16 closer to the middle of the separation box 5, so that the cuboid structure formed by the pair of first extrusion plates 14, the pair of second extrusion plates 16 and the bottom of the separation box 5 becomes smaller to extrude the channel silt. The extruded sewage is discharged through the filter hole 20 and the screen hole 51. The linear actuator includes, but is not limited to, telescopic cylinders and electric push rods. During the movement of the first extrusion plate 14 and the second extrusion plate 16, the first extrusion plate 14 The portion located between two adjacent first openings extends into the corresponding second opening of the second extrusion plate 16 and extrudes the second airbag 18. Excess air in the second airbag 18 is discharged through the second exhaust valve, and the portion of the second opening located inside the first extrusion plate 14 is sealed. At the same time, the portion of the second extrusion plate 16 located between two adjacent second openings extends into the corresponding first opening of the first extrusion plate 14 and extrudes the first airbag. Excess air in the first airbag is discharged through the first exhaust valve, and the portion of the first opening located inside the second extrusion plate 16 is sealed. The telescopic plate 19 located at the bottom of the second extrusion plate 16 retracts towards the middle of the second extrusion plate 16 under the action of the first extrusion plate 14.After the channel silt has been fully compressed, the discharge gate 9 is opened, allowing the separated silt to fall into the silt collection box 7 through the discharge channel 8. After the silt discharge is completed, the discharge gate 9 is closed. Then, the first linear actuator 15 and the second linear actuator 17 are controlled to move a pair of first compression plates 14 and a pair of second compression plates 16 to the left and right sides and then the front and rear sides of the separation box 5, so that the pair of first compression plates 14 and the pair of second compression plates 16 are reset. Then, the first air inlet valve and the second air inlet valve are used to inflate the first air bladder and the second air bladder 18 respectively, sealing the first opening and the second opening, waiting for the next compression operation.
[0032] In another embodiment, the port channel dredging device further includes: a second extrusion assembly disposed above the separation box 5 and opposite to the inlet of the dredging channel 8; the second extrusion assembly includes a third linear actuator 21 fixedly mounted on the horizontal part of the support frame 12, and an extrusion plate 22 horizontally disposed below the third linear actuator 21 and fixedly connected to its output end.
[0033] In this embodiment, the port channel dredging device further includes a second extrusion assembly. The second extrusion assembly preferably includes a third linear actuator 21 and an extrusion plate 22. The extrusion plate 22 is opposite to the inlet of the dredging channel 8 and matches the cross-section of the smallest cuboid structure formed by a pair of first extrusion plates 14 and a pair of second extrusion plates 16. When the pair of first extrusion plates 14 and the pair of second extrusion plates 16 move to the smallest cuboid structure, the third linear actuator 21 pushes the extrusion plate 22 downward to extend into the smallest cuboid structure to perform secondary extrusion of the channel silt, so as to further improve the extrusion efficiency of the channel silt. After the extrusion is completed, the dredging gate 9 is opened, and the third linear actuator 21 pushes the extrusion plate 22 downward again by a preset distance to push the separated silt into the silt collection box 7 through the dredging channel 8. After the silt is discharged, the dredging gate 9 is closed, and the third linear actuator 21 drives the extrusion plate 22 to reset, waiting for the next extrusion operation.
[0034] In another embodiment, the sludge discharge gate 9 includes two doors, the opposite sides of which are pivotally connected to the sidewalls of the sludge discharge channel 8, and at least two fourth linear actuators 23, which are fixed outside the sludge discharge channel 8 and located on the same side as the pivoting side of the doors. Each fourth linear actuator 23 is located below the door, and the output end of the fourth linear actuator 23 is configured to extend into the sludge discharge channel 8 and control the opening and closing of the sludge discharge gate 9.
[0035] In this embodiment, the sludge discharge gate 9 is configured to include two gates pivotally connected to the side wall of the sludge discharge channel 8, and at least two fourth linear actuators 23 are provided below the two gates to cooperate with them, so as to control the opening and closing of the sludge discharge gate 9 through the fourth linear actuators 23, and to provide support for the sludge discharge gate 9 when it is closed.
[0036] In another embodiment, a support box 24 is fixedly provided below the sewage collection box 6. The support box 24 is fixed on the deck of the dredging vessel 1. The front and rear sides of the support box 24 are open. The sludge collection box 7 is slidably disposed inside the support box 24.
[0037] In this embodiment, by fixing a support box 24 below the sewage collection box 6, firstly, the support box 24 provides support for the sewage collection box 6, thereby reducing the stress on the support plate 11 and lowering the strength requirements for the support plate 11; secondly, the support box 24 can serve as an isolation cover to prevent sludge falling into the sludge collection box from splashing onto other parts of the deck, thereby improving the cleanliness of the dredging environment.
[0038] In another embodiment, the bottom of the sludge collection box 7 is provided with an upwardly recessed limiting groove, the limiting groove is arranged along the front and rear direction of the sludge collection box 7, and the deck is provided with a limiting rail 25 that cooperates with the limiting groove.
[0039] In this embodiment, a limiting slide groove is added to the bottom of the sludge collection box 7, and a limiting slide rail 25 is added to the deck to facilitate the movement of the sludge collection box 7 and reduce labor intensity.
[0040] In another embodiment, a vertically upward anchor rod (not shown) is fixed at the end of the limiting slide rail 25, and an installation groove is provided on the rear side wall of the sludge collection box 7. A connecting plate (not shown) is hinged in the installation groove, and the connecting plate is provided with an anchor hole that cooperates with the anchor rod.
[0041] In this embodiment, the end of the limiting slide rail 25 is located at the rear of the support box 24. When the sludge collection box 7 moves along the limiting slide rail 25 to the end of the limiting slide rail 25, the sludge collection box 7 is located directly below the sludge discharge channel 8. At this time, the connecting plate is rotated and the connecting plate is connected to the anchor rod through the anchor hole to fix the sludge collection box 7, so as to prevent the sludge collection box 7 from moving randomly during the sludge discharge process and affecting the collection of sludge.
[0042] The number of devices and processing capacity described herein are for the purpose of simplifying the description of the invention. Applications, modifications, and variations of the port and waterway dredging device of this invention will be readily apparent to those skilled in the art.
[0043] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.
Claims
1. A port and waterway dredging device, fixedly mounted on a dredging vessel, characterized in that, include: The suction pipe has one end connected to the suction head and the other end connected to at least two discharge pipes, each of which is equipped with a discharge valve. At least two sludge separation components are arranged one-to-one below the sludge discharge pipe. Each sludge separation component includes a separation box, a sewage collection box, and a sludge collection box arranged sequentially from top to bottom. The separation box and the sewage collection box are connected by a screen hole at the bottom of the separation box. The separation box and the sludge collection box are connected by a sludge discharge channel that runs through the bottom of the sewage collection box and the separation box. The top of the sludge discharge channel is provided with a sludge discharge door. A drain pipe is located on the lower outer side of the sewage collection tank and communicates with the interior of the sewage collection tank. Both ends of the drain pipe extend to the sides of the dredging vessel.
2. The port and waterway dredging device as described in claim 1, characterized in that, Also includes: A support assembly, fixedly mounted on the dredging vessel, includes a support plate, which is an inverted U-shaped plate. The horizontal plate of the support plate has openings that correspond one-to-one with the sludge separation assembly. The separation box is fixed above the openings on the horizontal plate, and the sewage collection box is fixed below the openings on the horizontal plate. A support frame, which is an inverted U-shaped frame, is fixedly mounted on the support plate. A pipe clamp is fixed on the horizontal part of the support frame, and the suction pipe is supported and fixed on the support frame by the pipe clamp.
3. The port and waterway dredging device as described in claim 2, characterized in that, Also includes: A first extrusion assembly includes a pair of first extrusion plates disposed on the left and right sides inside the separation chamber. Each first extrusion plate is driven by a first linear actuator located outside the separation chamber and on the same side. The front and rear sides of each first extrusion plate have multiple first openings evenly spaced along their height direction. Each first opening is horizontally positioned and communicates with the outside. Each first opening has a first airbag on its upper and lower sides along its length direction. A first exhaust valve is located at one end of each first airbag near the center of the first extrusion plate, and a first intake valve is located at the other end. A pair of second extrusion plates are also disposed on the front and rear sides inside the separation chamber. Each second extrusion plate is driven by a second linear actuator located outside the separation chamber and on the same side. The left and right sides of each second extrusion plate have multiple second airbags evenly spaced along their height direction. The first and second openings are horizontally arranged and communicate with the outside. Each second opening has a second airbag on its upper and lower sides along its length. A second exhaust valve is provided at one end of the second airbag near the middle of the second extrusion plate, and a second intake valve is provided at the other end. The left and right sides of the bottom of the second extrusion plate are provided with telescopic plates, which can extend and retract along the length of the second extrusion plate. The first and second openings are staggered. The adjacent ends of the first and second extrusion plates are designed to be able to be interlocked by the first and second openings. The non-first opening portion of the first extrusion plate and the non-second opening portion of the second extrusion plate are provided with multiple filter holes at intervals. The inlet of the sludge discharge channel is located in the middle of the separation box.
4. The port and waterway dredging device as described in claim 3, characterized in that, Also includes: The second extrusion assembly is disposed above the separation box and opposite the inlet of the sludge discharge channel. The second extrusion assembly includes a third linear actuator fixed on the horizontal part of the support frame and an extrusion plate horizontally disposed below the third linear actuator and fixedly connected to its output end.
5. The port and waterway dredging device as described in claim 4, characterized in that, The sludge discharge gate includes two doors, the opposite sides of which are pivotally connected to the sidewalls of the sludge discharge channel. At least two fourth linear actuators are fixed outside the sludge discharge channel and located on the same side as the pivoting side of the doors. Each fourth linear actuator is located below the door, and the output end of the fourth linear actuator is configured to extend into the sludge discharge channel and control the opening and closing of the sludge discharge gate.
6. The port and waterway dredging device as described in claim 5, characterized in that, A support box is fixedly installed below the sewage collection tank. The support box is fixed on the deck of the dredging vessel. The front and rear sides of the support box are open. The sludge collection tank is slidably installed inside the support box.
7. The port and waterway dredging device as described in claim 6, characterized in that, The bottom of the sludge collection box is provided with an upwardly recessed limiting groove, which is arranged along the front and rear direction of the sludge collection box. The deck is provided with a limiting rail that cooperates with the limiting groove.
8. The port and waterway dredging device as described in claim 7, characterized in that, The end of the limiting slide rail is fixed with a vertically upward anchor rod, and the rear side wall of the sludge collection box is provided with an installation groove. A connecting plate is hinged in the installation groove, and the connecting plate is provided with an anchor hole that cooperates with the anchor rod.