Port channel dredging device

Abstract

The invention discloses a port channel desilting device which is fixedly arranged on a desilting ship and comprises a desilting suction pipe, a desilting head, at least two desilting discharge pipes, a desilting head, a desilting head, a desilting head, a desilting head, a desilting head and a desilting discharge pipe, and the desilting discharge pipe is provided with a desilting discharge valve; the sludge separation assemblies are arranged below the sludge discharge pipes in a one-to-one correspondence mode, each sludge separation assembly comprises a separation box, a sewage collection box and a sludge collection box which are sequentially arranged from top to bottom, and the separation boxes communicate with the sewage collection boxes through sieve holes formed in the bottoms of the separation boxes; the separation box is communicated with the sludge collection box through a sludge discharge channel penetrating through the sewage collection box and the bottom of the separation box, and a sludge discharge door is arranged at the top of the sludge discharge channel; and the drainage pipe is arranged on the outer side of the lower portion of the sewage collecting box and communicates with the interior of the sewage collecting box, and the two ends of the drainage pipe extend to the two sides of the dredging ship correspondingly. The dredging device has the advantages of being high in dredging efficiency, convenient to unload and transfer sludge and the like.

Description

Technical Field

[0001] The present invention relates to the field of waterway dredging, and more specifically, to a port waterway dredging device. Background Art

[0002] During the long-term operation of the port channel, the silt at the bottom of the channel will continue to accumulate, causing the depth of the port channel to gradually become shallower, affecting the channel's traffic capacity. Therefore, it is necessary to regularly desilt the port channel.

[0003] The existing port channel dredging is generally carried out by dredging ships. The dredging ships suck the silt into the cabin through underwater suction heads. When the cabin is full of silt, the silt is transported to the shore and unloaded directly to the silt storage area on the shore by manual or mechanical means. The above method has the following problems: first, the silt has a high water content and the cabin is easily filled with silt, which increases the frequency of the dredging ship's round trip to the shore; second, the unloading and transportation of silt is troublesome. Summary of the invention

[0004] The object of the present invention is to provide a port channel dredging device to at least solve the above-mentioned problems.

[0005] In order to achieve the purpose and other advantages of the present invention, a port channel dredging device is provided, which is fixedly installed on a dredging vessel, comprising: a sludge suction pipe, one end of which is connected to a sludge suction head, and the other end of which is connected to at least two sludge discharge pipes, each of which is provided with a sludge discharge valve; at least two sludge separation assemblies, which are arranged one by one below the sludge discharge pipe, each sludge separation assembly comprising a separation box, a sewage collection box and a sludge collection box arranged in sequence from top to bottom, the separation box and the sewage collection box are connected through a sieve hole arranged at the bottom of the separation box, the separation box and the sludge collection box are connected through a sludge discharge channel that runs through the sewage collection box and the bottom of the separation box, and a sludge discharge door is provided on the top of the sludge discharge channel; a drainage pipe, which is arranged on the outer side of the lower part of the sewage collection box and connected to the interior of the sewage collection box, and both ends of the drainage pipe extend to both sides of the dredging vessel respectively.

[0006] Preferably, the port channel dredging device further includes: a supporting assembly, which is fixedly mounted on the dredging vessel, including a supporting plate, which is an inverted U-shaped plate, a horizontal plate of the supporting plate is penetrated by openings corresponding to the sludge separation assemblies one by one, the separation box is fixedly mounted above the openings on the horizontal plate, and the sewage collection box is fixedly mounted below the openings on the horizontal plate; a supporting frame, which is an inverted U-shaped frame, which is fixedly mounted on the supporting plate, a pipe clamp is fixedly mounted on the horizontal portion of the supporting frame, and the sludge suction pipe is supported and fixed to the supporting frame by the pipe clamp.

[0007] Preferably, the port channel dredging device further includes: a first extrusion assembly, which includes a pair of first extrusion plates, which are arranged on the left and right sides of the separation box, each of which is driven by a first linear driver arranged outside the separation box and on the same side, and a plurality of first openings are arranged at equal intervals on the front and rear sides of the first extrusion plate along its height direction, each first opening is arranged horizontally and connected to the outside, and a first air bag is arranged on the upper and lower sides of each first opening along its length direction, and a first exhaust valve is arranged at one end of the first air bag close to the middle of the first extrusion plate, and a first air intake valve is arranged at the other end; a pair of second extrusion plates, which are arranged on the front and rear sides of the separation box, each of which is driven by a second linear driver arranged outside the separation box and on the same side, and the left and right sides of the second extrusion plate are arranged along their height direction A plurality of second openings are provided at equal intervals, each of the second openings is arranged horizontally and communicated with the outside, and second air bags are provided on the upper and lower sides of each second opening along the length direction thereof, a second exhaust valve is provided at one end of the second air bag close to the middle of the second extrusion plate, and a second air inlet valve is provided at the other end, and the left and right sides of the bottom of the second extrusion plate are arranged as telescopic plates, and the telescopic plates can be telescoped along the length direction of the second extrusion plate; wherein, the first opening and the second opening are arranged alternately, and the adjacent ends of the first extrusion plate and the second extrusion plate are arranged so as to be plugged and engaged with each other through the first opening and the second opening, and a plurality of filter holes are provided at intervals on the non-first opening portion of the first extrusion plate and the non-second opening portion of the second extrusion plate, and the entrance of the sludge discharge channel is arranged in the middle of the separation box.

[0008] Preferably, the port channel dredging device further includes: a second extrusion assembly, which is arranged above the separation box and opposite to the entrance of the dredging channel, the second extrusion assembly includes a third linear drive, which is fixed on the horizontal part of the support frame, and an extrusion plate, which is horizontally arranged below the third linear drive and fixedly connected to its output end.

[0009] Preferably, the silt discharge door comprises two doors, and the opposite sides of the two doors are respectively pivotally connected to the side walls of the silt discharge channel, and at least two fourth linear drives are respectively fixed outside the silt discharge channel and located on the same side as the pivotal side of the door, each fourth linear drive is located below the door, and the output end of the fourth linear drive is configured to be able to extend into the silt discharge channel and control the opening and closing of the silt discharge door.

[0010] Preferably, a support box is fixedly provided below the sewage collection box, the support box is fixedly provided 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 provided in the support box.

[0011] Preferably, a limiting slide groove which is recessed upward is provided at the bottom of the sludge collection box, the limiting slide groove is arranged along the front-rear direction of the sludge collection box, and a limiting slide rail which cooperates with the limiting slide groove is provided on the deck.

[0012] Preferably, a vertically upward anchor rod is fixedly provided at the end of the limiting slide rail, a mounting groove is provided on the rear side wall of the sludge collection box, a connecting plate is hinged in the mounting groove, and an anchor hole cooperating with the anchor rod is provided on the connecting plate.

[0013] The present invention has at least the following beneficial effects: The present invention adds a sludge separation component and a drainage pipe below the silt discharge pipe, and separates mud and water from the waterway silt sucked up by the silt suction head through the sludge separation component to reduce the water content in the silt. The separated sludge is collected in a sludge collection box, which is convenient for subsequent unloading and transportation of the sludge. The separated sewage is collected in the sewage collection box and then directly discharged into the river channel through the drainage pipe, which prolongs the time required for the silt to be filled, effectively reduces the frequency of the dredging ship going back and forth to the shore, and improves the dredging efficiency.

[0014] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of a port channel dredging device according to an embodiment of the present invention; Figure 2 is a schematic cross-sectional structural diagram of a sludge separation assembly according to an embodiment of the present invention; Figure 3 yes Figure 2 A magnified view of the part A in the middle; Figure 4 It is a schematic diagram of the top structure of a separation box according to an embodiment of the present invention. DETAILED DESCRIPTION

[0016] The present invention is further described in detail below in conjunction with embodiments and drawings so that those skilled in the art can implement the invention with reference to the description.

[0017] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0018] It should be noted that the experimental methods described in the following embodiments are conventional methods unless otherwise specified, and the reagents and materials are commercially available unless otherwise specified; in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] like Figure 1~Figure 4 As shown, an embodiment of the present invention provides a port channel silting device, which is fixedly mounted on a silting vessel 1, and comprises: a silt suction pipe 2, one end of which is connected to a silt suction head (not shown), and the other end of which is connected to at least two silt discharge pipes 3, each of which is provided with a silt discharge valve 4; at least two sludge separation assemblies, which are arranged below the silt discharge pipe 3 in a one-to-one correspondence, each sludge separation assembly comprises a separation box 5, a sewage collection box 6 and a silt collection box 7 arranged in sequence from top to bottom, the separation box 5 is connected to the sewage collection box 6 through a sieve hole 51 arranged at the bottom of the separation box 5, and the separation box 5 is connected to the silt collection box 7 through a silt discharge channel 8 that runs through the sewage collection box 6 and the bottom of the separation box 5, and a silt discharge door 9 is provided at the top of the silt discharge channel 8; a drainage pipe 10, which is arranged on the lower outer side of the sewage collection box 6 and connected to the interior of the sewage collection box 6, and the two ends of the drainage pipe 10 extend to the two sides of the silt removal vessel 1 respectively.

[0020] In the above embodiment, the port channel silt removal device includes a silt suction pipe 2, a silt separation assembly and a drainage pipe 10. One end of the silt suction pipe 2 is connected to a silt suction head placed underwater, and the other end is placed above the silt removal ship 1, and is preferably arranged along the width direction of the silt removal ship 1 (left and right direction in the figure). The other end of the silt suction pipe 2 is connected to at least two silt discharge pipes 3, such as Figure 1The silt separation assembly is connected with two silt discharge pipes 3, and each silt discharge pipe 3 is provided with a silt discharge valve 4, which is used to control the on and off of the silt discharge pipe 3. The number of sludge separation assemblies corresponds to the number of silt discharge pipes 3. Each silt separation assembly is fixed on the deck of the dredging vessel 1 and is located below the silt discharge pipe 3. Each silt separation assembly includes a separation box 5, a sewage collection box 6 and a silt collection box 7 arranged in sequence from top to bottom. The tops of the separation box 5, the sewage collection box 6 and the silt collection box 7 are preferably all open to save materials and reduce the weight of the sludge separation assembly. The top of the separation box 5 is opposite to the corresponding silt discharge pipe 3. The separation box 5 and the sewage collection box 6 are connected through a sieve hole 51 arranged at the bottom of the separation box 5. The separation box 5 and the silt collection box 7 are connected through a silt discharge channel 8 arranged through the sewage collection box 6 and the bottom of the separation box 5. The top and bottom of the silt discharge channel 8 are both open, and a silt discharge door 9 is provided at the top of the silt discharge channel 8. The drain pipe 10 is arranged at the lower outer side of the sewage collecting box 6 along the width direction of the dredging ship 1 and is connected to the interior of the sewage collecting box 6. Both ends of the drain pipe 10 extend to both sides of the dredging ship 1 respectively to discharge the sewage separated from the silt directly into the waterway.

[0021] When in use, the channel sludge is sucked by the sludge suction head and introduced into the separation box 5 through the sludge suction pipe 2 and the sludge discharge pipe 3. The channel sludge is separated from mud and water in the separation box 5 under the action of gravity. The separated sewage falls into the sewage collection box 6 through the sieve hole 51 at the bottom of the separation box 5. The sewage in the sewage collection box 6 is then directly discharged into the channel through the drainage pipe 10. The separated sludge falls into the sludge collection box 7 through the sludge discharge gate 9 and the sludge discharge channel 8, and is collected and transported by the sludge collection box 7. Multiple sludge separation components do not operate at the same time, and when the sludge separation component stops operating (the corresponding drainage valve 4 is closed for a preset time), the sludge discharge gate 9 is opened to collect the separated sludge.

[0022] The present invention adds a sludge separation component and a drainage pipe below the silt discharge pipe, and separates mud and water from the waterway silt sucked up by the silt suction head through the sludge separation component to reduce the water content in the silt. The separated sludge is collected in a sludge collection box, which is convenient for subsequent unloading and transportation of the sludge. The separated sewage is collected in the sewage collection box and then directly discharged into the river channel through the drainage pipe, which prolongs the time required for the silt to be filled, effectively reduces the frequency of the dredging ship going back and forth to the shore, and improves the dredging efficiency.

[0023] In another embodiment, the port channel dredging device further includes: a support assembly, which is fixedly mounted on the dredging vessel 1, including a support plate 11, which is an inverted U-shaped plate, and the horizontal plate of the support plate 11 is penetrated by openings corresponding to the sludge separation assemblies one by one, the separation box 5 is fixedly mounted above the openings on the horizontal plate, and the sewage collection box 6 is fixedly mounted below the openings on the horizontal plate; a support frame 12, which is an inverted U-shaped frame, which is fixedly mounted on the support plate 11, and a pipe clamp 13 is fixedly mounted on the horizontal part of the support frame 12, and the sludge suction pipe 2 is supported and fixed on the support frame 12 by the pipe clamp 13.

[0024] 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 separation box 5, the sewage collection box 6 and the sludge suction pipe 2 are supported and fixed by the support plate 11, the support frame 12 and the pipe clamp 13. The structure is stable and easy to disassemble and assemble.

[0025] In another embodiment, the port channel dredging device further includes: a first extrusion assembly, which includes a pair of first extrusion plates 14, which are arranged on the left and right sides of the separation box 5, each of the first extrusion plates 14 is driven by a first linear driver 15 arranged outside the separation box 5 and on the same side, and the front and rear sides of the first extrusion plate 14 are respectively provided with a plurality of first openings at equal intervals along its height direction, each first opening is horizontally arranged and connected to the outside, and the upper and lower sides of each first opening are provided with a first air bag along its length direction, and the first exhaust valve is provided at one end of the first air bag close to the middle of the first extrusion plate, and the first air intake valve is provided at the other end; a pair of second extrusion plates 16, which are arranged on the front and rear sides of the separation box 5, each of the second extrusion plates 16 is driven by a second linear driver 17 arranged outside the separation box 5 and on the same side, and the left and right sides of the second extrusion plate 16 are respectively provided with a plurality of first openings at equal intervals along its height direction. A plurality of second openings are arranged at intervals, each of which is arranged horizontally and communicated with the outside, and a second air bag 18 is arranged on the upper and lower sides of each second opening along its length direction, and a second exhaust valve is arranged at one end of the second air bag 18 close to the middle of the second extrusion plate 16, and a second air intake valve is arranged at the other end, and telescopic plates 19 are arranged on the left and right sides of the bottom of the second extrusion plate 16, and the telescopic plates 19 can be sealed and telescopic along the length direction of the second extrusion plate 16; wherein, the first opening and the second opening are arranged alternately, and the adjacent ends of the first extrusion plate 14 and the second extrusion plate 16 are arranged to be plugged and engaged with each other through the first opening and the second opening, and the part of the first extrusion plate 14 other than the first opening and the part of the second extrusion plate 16 other than the second opening are both arranged at intervals with a plurality of filter holes 20, and the entrance of the sludge discharge channel 8 is arranged in the middle of the separation box 5.

[0026] In this embodiment, the port channel dredging device also includes a first extrusion assembly, which includes a pair of first extrusion plates 14 and a pair of second extrusion plates 16 arranged in the separation box 5. The pair of first extrusion plates 14, the pair of second extrusion plates 16 and the bottom of the separation box 5 are enclosed to form a rectangular structure, and the pair of first extrusion plates 14 and the pair of second extrusion plates 16 are respectively driven by the first linear drive 15 and the second linear drive 17 arranged on the outside of the separation box 5 to move along the left and right direction or the front and back direction of the separation box 5 to change the size of the enclosed rectangular structure, that is, the pair of first extrusion plates 14 and the pair of second extrusion plates 16 are gathered toward the middle of the separation box 5 to squeeze the sludge, and the squeezed sewage flows into the sewage collection box 6 through the filter holes 20 arranged on the first extrusion plates 14 and the second extrusion plates 16 and the sieve holes 51 arranged at the bottom of the separation box 5, that is, the first extrusion assembly drives the pair of first extrusion plates 14 and the pair of second extrusion plates 16 to squeeze the sludge through the first linear drive 15 and the second linear drive 17, thereby effectively improving the efficiency of sewage separation in the sludge.

[0027] Specifically, in the initial state, a pair of first extrusion plates 14 are in contact with the left and right side walls of the separation box 5, respectively, and the front and rear sides of the first extrusion plates 14 are in contact with the front and rear side walls of the separation box 5, respectively, and the bottom surface of the first extrusion plate 14 is in contact with the bottom surface of the separation box 5, a pair of second extrusion plates 16 are in contact with the front and rear side walls of the separation box 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, and the bottom surface of the second extrusion plate 16 is in contact with the bottom surface of the separation box 5, the end portion of the first extrusion plate 14 located between the two first openings is inserted into the second opening corresponding to the second extrusion plate 16, and the end portion of the second extrusion plate 16 located between the two second openings is inserted into the The first extrusion plate 14 is inserted into the first opening corresponding to the first extrusion plate 14, and the end of the portion of the second extrusion plate 16 located between the telescopic plate 19 and the second opening at the bottom is inserted into the first opening at the bottom 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 to seal 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, and the length of the second opening is about 1 / 4 of the length of the second extrusion plate 16. 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 toward The middle of the separation box 5 is preferably moved; when the separation box 5 is filled with a preset amount of waterway sludge, the first exhaust valve and the second exhaust valve are opened first, and then the first linear drive 15 and the second linear drive 17 are controlled to push a pair of first extrusion plates 14 and a pair of second extrusion plates 16 to move toward the middle of the separation box 5, so that the rectangular 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 squeeze the waterway sludge, and the squeezed sewage is discharged through the filter hole 20 and the sieve hole 51. The linear drive includes but is not limited to a telescopic cylinder and an electric push rod. 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 squeezes the second airbag 18. The 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 kept 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 squeezes the first airbag. The 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 kept sealed. The telescopic plate 19 provided at the bottom of the second extrusion plate 16 contracts toward the middle of the second extrusion plate 16 driven by the first extrusion plate 14.When the channel silt is fully squeezed, the silt discharge door 9 is opened to allow the separated silt to fall into the silt collection box 7 through the silt discharge channel 8. After the silt discharge is completed, the silt discharge door 9 is closed, and then the first linear drive 15 and the second linear drive 17 are controlled to drive a pair of first squeezing plates 14 and a pair of second squeezing plates 16 to move to the left and right sides and then the front and back sides of the separation box 5, so that the pair of first squeezing plates 14 and the pair of second squeezing plates 16 are reset, and then the first air inlet valve and the second air inlet valve are respectively inflated into the first air bag and the second air bag 18, the first opening and the second opening are sealed, and the next squeezing operation is waited for. ;

[0028] In another embodiment, the port channel dredging device further includes: a second extrusion assembly, which is arranged above the separation box 5 and opposite to the entrance of the dredging channel 8, the second extrusion assembly includes a third linear drive 21, which is fixed on the horizontal part of the support frame 12, and an extrusion plate 22, which is horizontally arranged below the third linear drive 21 and fixedly connected to its output end.

[0029] In the present embodiment, the port channel dredging device also includes a second extrusion assembly, which preferably includes a third linear drive 21 and an extrusion plate 22. The extrusion plate 22 is opposite to the entrance of the silt discharge channel 8 and cooperates with the cross-section of the minimum rectangular 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 minimum rectangular structure formed by the enclosed, the third linear drive 21 pushes the extrusion plate 22 to move downward and extend into the minimum rectangular structure to perform secondary extrusion on the channel silt to further improve the extrusion efficiency of the channel silt. After the extrusion is completed, the silt discharge door 9 is opened, and the third linear drive 21 pushes the extrusion plate 22 to move downward again by a preset distance to push the separated silt through the silt discharge channel 8 into the silt collection box 7. After the silt discharge is completed, the silt discharge door 9 is closed, and the extrusion plate 22 is driven to reset by the third linear drive 21 to wait for the next extrusion operation.

[0030] In another embodiment, the silt discharge door 9 includes two doors, and the opposite sides of the two doors are respectively pivotally connected to the side walls of the silt discharge channel 8. At least two fourth linear drives 23 are respectively fixed outside the silt discharge channel 8 and are located on the same side as the pivotal side of the door. Each fourth linear drive 23 is located below the door, and the output end of the fourth linear drive 23 is configured to be able to extend into the silt discharge channel 8 and control the opening and closing of the silt discharge door 9.

[0031] In this embodiment, the silt discharge door 9 is configured to include two doors pivotally connected to the side walls of the silt discharge channel 8, and at least two fourth linear drives 23 are arranged below the two doors to cooperate with them, so as to control the opening and closing of the silt discharge door 9 through the fourth linear drive 23, and provide support for the silt discharge door 9 when the silt discharge door 9 is closed.

[0032] In another embodiment, a support box 24 is fixedly provided below the sewage collection box 6 , and the support box 24 is fixedly provided on the deck of the dredging vessel 1 . The front and rear sides of the support box 24 are open, and the sludge collection box 7 can be slidably provided in the support box 24 .

[0033] In this embodiment, a support box 24 is fixedly installed under the sewage collection box 6. Firstly, the support box 24 provides support for the sewage collection box 6 to reduce the force on the support plate 11 and reduce the strength requirement for the support plate 11. Secondly, the support box 24 can be used as an isolation cover to prevent the silt falling into the sludge collection box from splashing to other positions on the deck, thereby improving the cleanliness of the environment for dredging operations.

[0034] In another embodiment, a limiting slide groove which is recessed upward is provided at the bottom of the sludge collecting box 7, and the limiting slide groove is arranged along the front-rear direction of the sludge collecting box 7. A limiting slide rail 25 which cooperates with the limiting slide groove is provided on the deck.

[0035] In this embodiment, a limiting slide groove is added at the bottom of the sludge collection box 7 and a limiting slide rail 25 is added on the deck to facilitate the movement of the sludge collection box 7 and reduce labor intensity.

[0036] In another embodiment, a vertically upward anchor rod (not shown) is fixedly provided at the end of the limiting slide rail 25, and a mounting groove is provided on the rear side wall of the sludge collection box 7. A connecting plate (not shown) is hinged in the mounting groove, and an anchor hole cooperating with the anchor rod is provided on the connecting plate.

[0037] In this embodiment, the end of the limiting slide rail 25 is located at the rear side of the support box 24. When the sludge collecting box 7 moves along the limiting slide rail 25 to the end of the limiting slide rail 25, the sludge collecting box 7 is just located below the silt 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 collecting box 7, thereby preventing the sludge collecting box 7 from moving randomly during the silt discharge process and affecting the collection of sludge.

[0038] The number of devices and processing scales described here are used to simplify the description of the present invention. Applications, modifications and variations of the port channel desilting device of the present invention will be obvious to those skilled in the art.

[0039] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A port channel dredging device, which is fixed on a dredging vessel, and is characterized in that: include: A sludge suction pipe, one end of which is connected to the sludge suction head, and the other end of which is connected to at least two sludge discharge pipes, each of which is provided with a sludge discharge valve; At least two sludge separation assemblies are arranged one by one below the sludge discharge pipe, each sludge separation assembly comprises a separation box, a sewage collection box and a sludge collection box arranged in sequence from top to bottom, the separation box and the sewage collection box are connected through a sieve hole arranged at the bottom of the separation box, the separation box and the sludge collection box are connected through a sludge discharge channel arranged through the sewage collection box and the bottom of the separation box, and a sludge discharge door is arranged at the top of the sludge discharge channel; A drainage pipe is arranged on the lower outer side of the sewage collection box and is communicated with the interior of the sewage collection box. Both ends of the drainage pipe extend to both sides of the dredging vessel respectively.

2. The port channel dredging device according to claim 1, characterized in that: Also includes: A support assembly is fixedly mounted on the dredging boat, comprising a support plate which is an inverted U-shaped plate, a horizontal plate of the support plate being penetrated by openings corresponding to the sludge separation assemblies one by one, the separation box being fixedly mounted above the openings on the horizontal plate, and the sewage collection box being fixedly mounted below the openings on the horizontal plate; a support frame which is an inverted U-shaped frame, which is fixedly mounted on the support plate, a pipe clamp being fixedly mounted on the horizontal portion of the support frame, and the sludge suction pipe being supported and fixed to the support frame by the pipe clamp.

3. The port channel dredging device according to claim 2, characterized in that: Also includes: A first extrusion assembly, comprising a pair of first extrusion plates, which are arranged on the left and right sides of the separation box, each of which is driven by a first linear drive arranged on the same side outside the separation box, and a plurality of first openings are arranged at equal intervals on the front and rear sides of the first extrusion plate along its height direction, each of which is arranged horizontally and connected to the outside, and a first air bag is arranged on the upper and lower sides of each first opening along its length direction, and a first exhaust valve is arranged at one end of the first air bag close to the middle of the first extrusion plate, and a first air intake valve is arranged at the other end; a pair of second extrusion plates, which are arranged on the front and rear sides of the separation box, each of which is driven by a second linear drive arranged on the same side outside the separation box, and a plurality of second air bags are arranged at equal intervals on the left and right sides of the second extrusion plate along its height direction. opening, each second opening is horizontally arranged and communicated with the outside, and second air bags are arranged on the upper and lower sides of each second opening along its length direction, and a second exhaust valve is arranged at one end of the second air bag close to the middle of the second extrusion plate, and a second air inlet valve is arranged at the other end, and the left and right sides of the bottom of the second extrusion plate are arranged as telescopic plates, and the telescopic plates can be extended and retracted along the length direction of the second extrusion plate; wherein, the first opening and the second opening are staggered, and the adjacent ends of the first extrusion plate and the second extrusion plate are arranged to be plugged and engaged with each other through the first opening and the second opening, and the part of the first extrusion plate other than the first opening and the part of the second extrusion plate other than the second opening are both provided with a plurality of filter holes at intervals, and the entrance of the sludge discharge channel is arranged in the middle of the separation box.

4. The port channel dredging device according to claim 3, characterized in that: Also includes: The second extrusion assembly is arranged above the separation box and opposite to the entrance of the sludge discharge channel. The second extrusion assembly includes a third linear drive, which is fixed on the horizontal part of the support frame, and an extrusion plate, which is horizontally arranged below the third linear drive and fixedly connected to its output end.

5. The port channel dredging device according to claim 4, characterized in that: The silt discharge door includes two doors, and the opposite sides of the two doors are respectively pivotally connected to the side walls of the silt discharge channel. At least two fourth linear drives are respectively fixed outside the silt discharge channel and are located on the same side as the pivotal sides of the doors. Each fourth linear drive is located below the door, and the output end of the fourth linear drive is configured to be able to extend into the silt discharge channel and control the opening and closing of the silt discharge door.

6. The port channel dredging device according to claim 5, characterized in that: A support box is fixedly arranged below the sewage collection box, and the support box is fixedly arranged on the deck of the dredging vessel. The front and rear sides of the support box are open, and the sludge collection box can be slidably arranged in the support box.

7. The port channel dredging device according to claim 6, characterized in that: The bottom of the sludge collection box is provided with an upwardly concave limiting slide groove, the limiting slide groove is arranged along the front and rear direction of the sludge collection box, and the deck is provided with a limiting slide rail matched with the limiting slide groove.

8. The port channel dredging device according to claim 7, characterized in that: A vertically upward anchor rod is fixedly arranged at the end of the position-limiting slide rail, a mounting groove is arranged on the rear side wall of the sludge collecting box, a connecting plate is hinged in the mounting groove, and an anchor hole cooperating with the anchor rod is arranged on the connecting plate.

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