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CN119507514B - Desilting device and desilting method - Google Patents

Desilting device and desilting method Download PDF

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Publication number
CN119507514B
CN119507514B CN202510071419.4A CN202510071419A CN119507514B CN 119507514 B CN119507514 B CN 119507514B CN 202510071419 A CN202510071419 A CN 202510071419A CN 119507514 B CN119507514 B CN 119507514B
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China
Prior art keywords
sludge
dredging
piercing
walking frame
layer
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Application number
CN202510071419.4A
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Chinese (zh)
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CN119507514A (en
Inventor
余海明
薛祖耀
刘蔚林
姚海法
朱丽蓝
张丽
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ZHEJIANG MINGSHUO ENERGY-SAVING TECHNOLOGY Inc
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ZHEJIANG MINGSHUO ENERGY-SAVING TECHNOLOGY Inc
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Priority to CN202510071419.4A priority Critical patent/CN119507514B/en
Publication of CN119507514A publication Critical patent/CN119507514A/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F5/00Dredgers or soil-shifting machines for special purposes
    • E02F5/28Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways
    • E02F5/282Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways with rotating cutting or digging tools
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/8816Mobile land installations
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/905Manipulating or supporting suction pipes or ladders; Mechanical supports or floaters therefor; pipe joints for suction pipes
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/907Measuring or control devices, e.g. control units, detection means or sensors
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F7/00Equipment for conveying or separating excavated material
    • E02F7/02Conveying equipment mounted on a dredger

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Sludge (AREA)

Abstract

The invention discloses a dredging device and a dredging method, which relate to the technical field of dredging and comprise a walking frame, wherein a sludge pre-piercing and dredging mechanism, a dredging conveying mechanism, an upper sludge spiral collecting mechanism and a lower sludge loosening plow are sequentially arranged in the walking direction of the walking frame, the sludge pre-piercing and dredging mechanism is used for cleaning obstacles and puncturing sludge layers, the dredging conveying mechanism is used for conveying the obstacles cleaned by the sludge pre-piercing and dredging mechanism upwards above a water surface, the upper sludge spiral collecting mechanism is used for collecting upper sludge from two sides of the walking frame to the middle, the lower sludge loosening plow is used for dredging the lower sludge punctured by the sludge pre-piercing and dredging mechanism from two sides of the walking frame to the middle, a confluence cover which is at least partially covered on the upper sludge spiral collecting mechanism and the lower sludge loosening plow respectively is arranged on the walking frame, and a sludge suction pump is arranged at the top of the confluence cover so as to remarkably remove the sucked sludge.

Description

Desilting device and desilting method
Technical Field
The invention relates to the technical field of dredging, in particular to a dredging device and a dredging method.
Background
With the development of the age, the water pollution of the existing lakes is increased, wherein the sludge contains a large amount of salt. Heavy metal and organic pollutant, nutrient substances such as nitrogen and phosphorus in the sludge can cause excessive algae propagation, so that the sludge has serious harm to water and soil, the sludge is divided into a soft layer on the surface layer of the sludge and a hard layer in the deep layer of the sludge, the existing dredging device can only clean the surface layer of the sludge, and the existing device has the condition of incomplete cleaning of the sludge and sundries in the sludge.
The prior patent (bulletin number: CN 114351778B) proposes an underwater dredging robot, which comprises a robot platform frame, wherein the bottom end of the robot platform frame is provided with an intelligent motion system, the upper end of the robot platform frame is provided with a waterproof shell, the two sides of the robot platform frame are correspondingly provided with pontoons, the front end of the robot platform frame is correspondingly provided with a mechanical arm, the front end of the mechanical arm is correspondingly provided with a dredging mechanism, and the front end and the rear end of the robot platform frame and the upper end of the waterproof shell are also provided with six-dimensional underwater propellers. The intelligent walking, silt detection and dredging software of the underwater robot are integrated and developed into a unique system and are correspondingly installed in an intelligent control system, and all the works such as power walking, accurate positioning, route correction, silt detection, dredging operation, back flushing and the like of the whole robot can be correspondingly controlled to operate through the intelligent control system, so that autonomous running and stable work of the dredging robot are truly realized.
The desilting robot adopts the desilting mechanism on the technical scheme of solving desilting, the desilting mechanism adopts the structure of a twisted sucker and a crushing shield, the twisted sucker is used for adsorbing sludge, the crushing shield is used for crushing solid garbage, and the scheme has the problems that the desilting mechanism can only desilting the surface layer of the sludge, and the desilting effect is not ideal only through the twisted sucker, so that the desilting device and the desilting method are provided.
Disclosure of Invention
The invention provides a dredging device and a dredging method, which solve the technical problem that the existing dredging device is poor in dredging effect.
In order to solve the technical problems, the dredging device comprises a walking frame, a sludge pre-piercing and barrier-removing mechanism, a barrier-removing conveying mechanism, an upper sludge spiral collecting mechanism and a lower sludge loosening plow are sequentially arranged in the walking direction of the walking frame, the sludge pre-piercing and barrier-removing mechanism is used for cleaning obstacles and piercing a sludge layer, the barrier-removing conveying mechanism is used for conveying the obstacles cleaned by the sludge pre-piercing and barrier-removing mechanism upwards above a water surface, the upper sludge spiral collecting mechanism is used for collecting upper sludge from two sides of the walking frame to the middle, the lower sludge loosening plow is used for stirring the lower sludge pierced by the sludge pre-piercing and barrier-removing mechanism from two sides of the walking frame to the middle, and a converging cover at least partially covering the upper sludge spiral collecting mechanism and the lower sludge loosening plow respectively is arranged on the walking frame, and a sludge separation pump is arranged at the top of the converging cover.
Preferably, the silt pre-piercing obstacle clearance mechanism comprises at least two spike rollers which are distributed on the same axial lead and synchronously rotate, and the spike rollers are connected with the first driving assembly.
According to the technical scheme, the silt pre-piercing obstacle clearance mechanism comprises at least two spike-carrying rollers which are distributed on the same axial lead and synchronously rotate, the spike-carrying rollers are connected with the first driving assembly, the first driving assembly drives the spike-carrying rollers to roll, one spike-carrying roller can be used for piercing a hard layer of silt in a tapering manner, the hard layer is pre-loosened and soft, the loosening plow for loosening the hard layer of the silt is facilitated, and the other spike-carrying roller can be used for piercing impurities on the silt in a tapering manner, and after the impurities are pierced in a tapering manner, the impurities roll to the obstacle clearance conveying mechanism for conveying and clearance.
Preferably, the first driving assembly comprises a first servo motor which is exposed out of the water surface, a first transmission shaft is connected to an output shaft of the first servo motor, and the first transmission shaft is connected with the nail roller through a first tooth transmission structure.
By adopting the technical scheme, the first driving assembly comprises the first servo motor which is exposed out of the water surface, the first transmission shaft is connected to the output shaft of the first servo motor, the first transmission shaft is connected with the nail roller through the first tooth transmission structure, the first tooth transmission structure can avoid the risk of soaking of the first servo motor on one hand, the first servo motor is prevented from being damaged, and the first servo motor can drive a plurality of nail rollers to roll conveniently, so that the working efficiency is improved.
Preferably, a cutter with a downward cutting edge and at least partially extending into the space between two adjacent spike rollers is arranged on the walking frame.
According to the technical scheme, the cutter with the downward cutting edge and at least partially extending into the space between the two adjacent nail-carrying rollers is arranged on the walking frame, so that the situation that the impurity is blocked on the first transmission shaft when the nail-carrying rollers roll the impurity onto the obstacle clearance conveying mechanism is avoided, and the cutter is designed to cut off the impurity.
Preferably, the obstacle removing conveying mechanism comprises a conveying belt which is obliquely arranged, and a comb part which is arranged at the lower end of the conveying belt, wherein the comb part is provided with a plurality of comb teeth, comb tooth through grooves are formed between two adjacent comb teeth, pointed nails of the nail roller are in one-to-one correspondence with the comb tooth through grooves, and the pointed nails pass through the comb tooth through grooves when the nail roller rotates.
According to the technical scheme, the obstacle clearing conveying mechanism comprises the conveying belt which is obliquely arranged, and the comb part which is arranged at the lower end of the conveying belt, wherein the comb part is provided with a plurality of comb teeth, comb tooth through grooves are formed between two adjacent comb teeth, pointed nails of the nail roller are in one-to-one correspondence with the comb tooth through grooves, and the pointed nails pass through the comb tooth through grooves when the nail roller rotates, so that impurities on the nail roller can be effectively combed, and then the impurities smoothly reach the conveying belt.
Preferably, the upper sludge spiral collecting mechanism comprises two spiral rods which are opposite in spiral direction and synchronously rotate, and the spiral rods are connected with the second driving assembly.
By adopting the technical scheme, the upper sludge spiral collecting mechanism comprises two spiral rods which are opposite in spiral direction and synchronously rotate, the spiral rods are connected with the second driving assembly, the second driving assembly drives the two spiral rods which are opposite in spiral direction to rotate, sludge on two sides in the collecting cover is collected at the middle part of the collecting cover, and further the sludge sucking pump is convenient for sucking and removing the sludge.
Preferably, the second driving assembly comprises a second servo motor exposed out of the water surface, a second transmission shaft is connected to an output shaft of the second servo motor, and the second transmission shaft is connected with the screw rod through a second tooth transmission structure.
By adopting the technical scheme, the second driving assembly comprises a second servo motor which is exposed out of the water surface, a second transmission shaft is connected to an output shaft of the second servo motor, the second transmission shaft is connected with the screw rod through a second tooth transmission structure, and the structure has the same advantages as the first driving assembly.
Preferably, the number of the lower-layer silt and loose mud plow is at least two and the lower-layer silt and loose mud plow is symmetrically distributed.
By adopting the technical scheme, at least two lower-layer sludge loosening plows are symmetrically distributed, so that the loosening plowing effect is better when the loosening plows are carried out on the hard layer of the sludge.
Preferably, the front side of the confluence cover is provided with an opening, and the opposite sides of the confluence cover are respectively provided with a confluence inclined part inclined to the central position of the walking frame.
By adopting the technical scheme, the front side of the confluence cover is provided with the opening, and the opposite sides of the confluence cover are respectively provided with the confluence inclined parts inclined towards the central position of the walking frame, so that sludge can be conveniently converged towards the middle of the confluence cover.
The application also provides a dredging method, which comprises the following steps:
S1, submerging at least part of the dredging device in water, and enabling the dredging device to walk at the bottom of the water by power driving or traction power;
S2, performing obstacle cleaning and puncturing on a silt layer by a silt pre-puncturing obstacle removing mechanism of the silt removing device in the S1;
S3, an obstacle clearing and conveying mechanism of the dredging device conveys the obstacle cleared by the S2 upwards above the water surface;
S4, the upper-layer sludge spiral collecting mechanism of the dredging device collects upper-layer sludge in the confluence cover from two sides of the walking frame to the middle, and the lower-layer sludge after being pierced by the sludge pre-piercing barrier removing mechanism by the lower-layer sludge loosening plow of the dredging device is turned in the confluence cover from two sides of the walking frame to the middle;
S5, conveying the sludge in the confluence cover out of the water surface from bottom to top by a sludge suction pump arranged at the top of the confluence cover, namely, completing dredging treatment.
Compared with the related art, the invention has the following beneficial effects:
Compared with the traditional dredging device, the dredging device has the advantages that the dredging device is provided with the sludge pre-piercing and dredging mechanism, the dredging conveying mechanism, the upper sludge spiral collecting mechanism, the lower sludge loosening plow, the confluence cover and the sludge sucking and separating pump, when the travelling frame advances, the sludge pre-piercing and dredging mechanism can be used for piercing the hard layer of the sludge in a tapering manner on one hand in the rolling process, so that the hard layer is pre-loosened, the loosening plow of the hard layer of the sludge is facilitated, on the other hand, impurities on the sludge can be pierced in a tapering manner, after the impurities are pierced in a tapering manner, the impurities are conveyed to the collecting box or the collecting boat on the water surface by the dredging conveying mechanism when the sludge pre-piercing and dredging mechanism rolls to the dredging conveying mechanism, the impurities are prevented from blocking the sludge sucking and separating pump, and when the travelling frame advances, the lower sludge loosening plow is used for loosening the hard layer of the sludge, and the sludge in the confluence cover is gathered from two sides to the middle by the upper sludge spiral mechanism after the loosening plow, and finally the sludge in the confluence cover is sucked and separated by the sucking and separating pump.
Drawings
FIG. 1 is a schematic diagram of a dredging device;
FIG. 2 is a top view of a dredging arrangement;
FIG. 3 is an enlarged view of the A position in the dredging device;
FIG. 4 is a cross-sectional view of a confluence cover in a dredging apparatus;
FIG. 5 is a schematic view of a partial structure of a dredging device;
FIG. 6 is a diagram showing a structure of a sludge pre-piercing obstacle removing mechanism and an upper sludge spiral collecting mechanism in a dredging device;
FIG. 7 is a diagram showing the construction of a confluence cover, a lower layer sludge loosening plow and a sludge sucking pump in the dredging device;
FIG. 8 is a schematic view of a dredging device in three-dimensional coordinates;
FIG. 9 is a schematic diagram showing an operation state of the dredging device.
The device comprises a walking frame, a cutter, a 2-layer sludge pre-piercing barrier removing mechanism, a 21-layer nail carrying roller, a 211-layer spike, a 22-layer first driving component, a 221-layer first servo motor, a 222-layer first driving shaft, a 3-layer barrier removing conveying mechanism, a 31-layer conveying belt, a 32-layer comb part, a 321-layer comb tooth, a 322-layer comb tooth through groove, a 4-layer upper-layer sludge spiral collecting mechanism, a 41-layer spiral rod, a 42-layer second driving component, a 421-layer second servo motor, a 422-layer second driving shaft, a 5-layer lower-layer sludge loosening plough, a 6-layer confluence cover, a 61-layer opening, a 62-layer confluence inclined part, a 7-layer sludge sucking pump and an 8-layer grid type filter plate.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present invention are within the scope of protection of the present invention.
1, As shown in fig. 1-9, a dredging device comprises a walking frame 1, a sludge pre-piercing and barrier-removing mechanism 2, a barrier-removing conveying mechanism 3, an upper sludge spiral collecting mechanism 4 and a lower sludge loosening plow 5 are sequentially arranged in the walking direction of the walking frame 1, the sludge pre-piercing and barrier-removing mechanism 2 is used for cleaning barriers and puncturing sludge layers, the barrier-removing conveying mechanism 3 is used for conveying the barriers cleaned by the sludge pre-piercing and barrier-removing mechanism 2 upwards above a water surface, the upper sludge spiral collecting mechanism 4 is used for collecting upper sludge from two sides of the walking frame 1 to the middle, the lower sludge loosening plow 5 is used for stirring sludge from two sides of the walking frame 1 to the middle, the walking frame 1 is provided with a confluence cover 6 at least partially covered on the upper sludge spiral collecting mechanism 4 and the lower sludge loosening plow 5 respectively, and a suction pump 7 is arranged at the top of the confluence cover 6;
The invention has the characteristics that when the walking frame 1 advances, the hard layer of the sludge can be pricked by the sludge pre-pricking barrier removing mechanism 2 in the rolling process, so that the hard layer is pricked, the sludge in the confluence cover 6 is gathered from two sides to the middle by the upper sludge screw gathering mechanism 4, and finally, the sludge in the confluence cover 6 is sucked and removed by the sludge sucking and removing pump 7 after the impurity is pricked, and the sludge pre-pricking barrier removing mechanism 2 is conveyed to a collecting box or a collecting ship on the water surface by the barrier removing conveying mechanism 3 when rolling to the barrier removing mechanism 3, so that the sludge sucking and removing pump 7 is prevented from being blocked by the impurities, and when the walking frame 1 advances, the hard layer of the sludge is gathered from two sides to the middle by the lower sludge screw gathering mechanism 5, and finally, the sludge in the confluence cover 6 is sucked and removed by the sludge sucking and removing pump 7.
1-4, Based on the above embodiment 1, the sludge pre-piercing barrier removing mechanism 2 comprises at least two nailed rollers 21 which are distributed on the same axis and synchronously rotate, the nailed rollers 21 are connected with a first driving assembly 22, the first driving assembly 22 drives the nailed rollers 21 to roll, one side of the nailed rollers 21 can pierce a hard layer of the sludge in a tapering manner, so that the hard layer is pre-softened, a loose plow for loosening the hard layer of the sludge is facilitated, and the other side of the nailed rollers 21 can pierce impurities on the sludge in a tapering manner, so that after the impurities are pierced in a tapering manner, the impurities are rolled to the barrier removing conveying mechanism 3 for conveying and removing.
As shown in fig. 6, the first driving assembly 22 includes a first servo motor 221 exposed out of the water surface, a first transmission shaft 222 is connected to an output shaft of the first servo motor 221, the first transmission shaft 222 is connected with the nailer roller 21 through a first tooth transmission structure, and the first tooth transmission structure can avoid the risk of soaking the first servo motor 221, prevent the first servo motor 221 from being damaged, and can drive a plurality of nailer rollers 21 to roll through one first servo motor 221 conveniently, so that the working efficiency is improved;
the second driving assembly 42 comprises a second servo motor 421 exposed out of the water, a second transmission shaft 422 is connected to an output shaft of the second servo motor 421, the second transmission shaft 422 is connected with the screw rod 41 through a second tooth transmission structure, and the structure has the same advantages as the first driving assembly 22;
Preferably, in order to protect the working stability of the first tooth transmission structure and the second tooth transmission structure and to avoid the sludge blocking the normal operation of the first tooth transmission structure and the second tooth transmission structure, a protective cover is arranged outside the first tooth transmission structure and the second tooth transmission structure for protecting the first tooth transmission structure and the second tooth transmission structure.
As shown in fig. 4 to 5, the walking frame 1 is provided with a cutter 11 with a downward cutting edge and at least partially extending into the space between two adjacent spike rollers 21, and in order to avoid the situation that impurities are large and long, the spike rollers 21 are blocked on the first transmission shaft 222 when rolling the impurities onto the obstacle clearing conveying mechanism 3, so that the cutter 11 is designed to cut off the impurities.
As shown in fig. 2-3, the obstacle removing and conveying mechanism 3 includes a conveying belt 31 which is obliquely arranged, and a comb part 32 which is positioned at the lower end of the conveying belt 31, wherein the comb part 32 is provided with a plurality of comb teeth 321, comb tooth through grooves 322 are formed between two adjacent comb teeth 321, pointed nails 211 of the belt nail roller 21 are in one-to-one correspondence with the comb tooth through grooves 322, and when the belt nail roller 21 rotates, the pointed nails 211 pass through the comb tooth through grooves 322, so that impurities on the belt nail roller 21 can be effectively combed, and then the impurities can smoothly reach the conveying belt 31.
Further, the comb portion 32 is fixed to a fixed bracket of the conveyor belt 31 or is provided to the traveling frame 1, and the comb portion 32 is horizontally provided and the conveying surfaces of the comb portion 32 and the conveyor belt 31 form an obtuse angle. The conveyor belt 31 is driven by a motor.
As shown in fig. 6, the upper sludge spiral collecting mechanism 4 comprises two spiral rods 41 with opposite spiral directions and synchronously rotating, the spiral rods 41 are connected with a second driving assembly 42, the second driving assembly 42 drives the two spiral rods 41 with opposite spiral directions to rotate, sludge on two sides in the collecting cover 6 is collected at the middle part of the collecting cover 6, and further the sludge sucking pump 7 is convenient for sucking and removing the sludge.
As shown in fig. 7, the lower layer sludge loosening plow 5 has at least two and symmetrically distributed, the loosening plow effect is better when loosening the hard layer of the sludge, the front side of the confluence cover 6 is provided with an opening 61, the bottom side of the confluence cover 6 is provided with a second opening, and the opposite sides of the confluence cover 6 are respectively provided with confluence inclined parts 62 inclined towards the center of the walking frame 1, so that the sludge is convenient to converge towards the middle of the confluence cover 6.
As shown in fig. 4, since the upper sludge is thick and the lower sludge is a deposited and slightly hardened sludge layer, the mesh filter plate 8 is disposed above the front side of the upper sludge screw collecting mechanism 4, and can filter large objects in the sludge to a certain extent, so as to further play a protective role for the sludge suction pump 7.
As shown in fig. 8, the walking frame 1 runs along the Z axis, wherein the sludge pre-piercing obstacle removing mechanism 2, the obstacle removing conveying mechanism 3, the upper sludge spiral collecting mechanism 4 and the confluence cover 6 are arranged on the walking frame 1 in sequence along the Z axis, the sludge pre-piercing obstacle removing mechanism 2 is distributed on the X axis, and the upper sludge spiral collecting mechanism 4 is distributed on the X axis.
Embodiment 3, based on the above embodiment 1 and embodiment 2, further discloses a dredging method, which includes the following steps:
S1, submerging at least part of the dredging device in the embodiment 1 in water, and enabling the dredging device to walk at the bottom of the water by power driving or traction power;
S2, performing obstacle cleaning and puncturing on a silt layer by a silt pre-puncturing obstacle removing mechanism 2 of the silt removing device in the S1;
S3, an obstacle clearing and conveying mechanism 3 of the dredging device conveys the obstacle cleared by the S2 upwards above the water surface;
S4, the upper-layer sludge spiral collecting mechanism 4 of the dredging device collects upper-layer sludge in the confluence cover 6 from two sides of the walking frame 1 to the middle, and the lower-layer sludge after being pierced by the sludge pre-piercing barrier removing mechanism 2 by the lower-layer sludge loosening plow 5 of the dredging device is turned in the confluence cover 6 from two sides of the walking frame 1 to the middle;
S5, a sludge suction pump 7 arranged at the top of the confluence cover 6 conveys sludge in the confluence cover 6 from bottom to top out of the water surface, namely, dredging treatment is completed.
Further, the sludge suction pump 7 is connected to a collection box of the traveling frame 1 or directly to an obstacle storage bin of the ship body through a pipeline.
The working principle is that as shown in figures 1-9, when the travelling frame 1 advances, the sludge pre-piercing barrier removing mechanism 2 can taper the hard layer of the sludge in the rolling process, so that the hard layer is pre-loosened, the sludge loosening plow is convenient for loosening the hard layer of the sludge, on the other hand, impurities on the sludge can be tapered, after the impurities are tapered, the impurities are conveyed to a collecting box or a collecting ship on the water surface by the barrier removing conveying mechanism 3 when the sludge pre-piercing barrier removing mechanism 2 rolls to the barrier removing conveying mechanism 3, the impurities are prevented from blocking the sludge sucking pump 7, when the travelling frame 1 advances, the lower sludge loosening plow 5 is used for loosening the hard layer of the sludge, the sludge after loosening the sludge is gathered from two sides to the middle by the upper sludge spiral gathering mechanism 4, and finally, the sludge in the confluence cover 6 is sucked and removed by the sludge sucking pump 7.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The dredging device comprises a walking frame (1), and is characterized in that a sludge pre-piercing and barrier-removing mechanism (2), a barrier-removing conveying mechanism (3), an upper sludge spiral collecting mechanism (4) and a lower sludge loosening plow (5) are sequentially arranged in the walking direction of the walking frame (1), the sludge pre-piercing and barrier-removing mechanism (2) is used for cleaning obstacles and puncturing sludge layers, the barrier-removing conveying mechanism (3) is used for conveying the obstacles cleaned by the sludge pre-piercing and barrier-removing mechanism (2) upwards above the water surface, the upper sludge spiral collecting mechanism (4) is used for collecting upper sludge from the two lateral sides of the walking frame (1), the lower sludge loosening plow (5) is used for turning the sludge from the two lateral sides of the walking frame (1) to the middle, at least partial parts of the walking frame (1) are covered on the upper sludge spiral collecting mechanism (4) and the lower sludge loosening plow (6), and a confluence pump (7) is arranged at the top of the sludge loosening plow (6);
the silt pre-piercing obstacle clearance mechanism (2) comprises at least two belt nail rollers (21) which are distributed on the same axial lead and synchronously rotate, the belt nail rollers (21) are connected with a first driving assembly (22), the obstacle clearance conveying mechanism (3) comprises a conveying belt (31) which is obliquely arranged, and a comb part (32) which is positioned at the lower end of the conveying belt (31), the comb part (32) is provided with a plurality of comb teeth (321), comb tooth through grooves (322) are formed between two adjacent comb teeth (321), sharp nails (211) of the belt nail rollers (21) are in one-to-one correspondence with the comb tooth through grooves (322), and the sharp nails (211) pass through the comb tooth through grooves (322) when the belt nail rollers (21) rotate.
2. A dredging arrangement according to claim 1, wherein the first drive assembly (22) comprises a first servomotor (221) which is exposed out of the water, a first drive shaft (222) is connected to an output shaft of the first servomotor (221), and the first drive shaft (222) is connected to the spike roller (21) through a first gear transmission structure.
3. A dredging arrangement according to claim 1, characterized in that a cutter (11) with its cutting edge facing downwards and extending into the space between two adjacent spike rollers (21) is provided on the travelling frame (1).
4. A dredging arrangement according to claim 1, wherein the upper sludge screw collection means (4) comprises two screw rods (41) rotating in opposite screw directions and synchronously, the screw rods (41) being connected to a second drive assembly (42).
5. A dredging arrangement according to claim 4, wherein the second drive assembly (42) comprises a second servomotor (421) exposed to the water, a second drive shaft (422) is connected to an output shaft of the second servomotor (421), and the second drive shaft (422) is connected to the screw rod (41) via a second gear transmission structure.
6. A dredging arrangement according to claim 1, wherein there are at least two of the lower sludge-loosening plow (5) and are symmetrically distributed.
7. A dredging arrangement according to claim 1, characterized in that the front side of the confluence hood (6) is provided with an opening (61), and that the opposite sides of the confluence hood (6) are provided with confluence tilting parts (62) tilting towards the central position of the travelling frame (1), respectively.
8. The dredging method is characterized by comprising the following steps of:
S1, submerging a dredging device according to any one of claims 1-7 in water, wherein the dredging device is driven by power or traction power to walk on the water bottom;
S2, performing obstacle cleaning and puncturing on a silt layer by a silt pre-puncturing obstacle removing mechanism (2) of the silt removing device in the S1;
S3, an obstacle clearing and conveying mechanism (3) of the dredging device conveys the obstacle cleared by the S2 upwards above the water surface;
S4, the upper-layer sludge spiral collecting mechanism (4) of the dredging device collects upper-layer sludge in the confluence cover (6) from two sides of the walking frame (1) to the middle, and the lower-layer sludge after the lower-layer sludge loosening plow (5) of the dredging device pierces the sludge pre-piercing barrier removing mechanism (2) is turned in the confluence cover (6) from two sides of the walking frame (1) to the middle;
s5, a silt sucking pump (7) arranged at the top of the confluence cover (6) conveys silt in the confluence cover (6) out of the water surface from bottom to top, namely, dredging treatment is completed.
CN202510071419.4A 2025-01-16 2025-01-16 Desilting device and desilting method Active CN119507514B (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108505574A (en) * 2018-06-25 2018-09-07 江苏东方生态清淤工程有限公司 Environment protection-type multi-function operation ship
CN215715648U (en) * 2021-06-22 2022-02-01 中国电建集团港航建设有限公司 River channel dredging device for urban landscape river
CN114411857A (en) * 2022-02-10 2022-04-29 陈晓倩 Silt clean-up equipment in water conservancy construction

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8005840A (en) * 1980-10-23 1982-05-17 Ihc Holland Nv Destruction system for plants with high moisture content - dredges water hyacinths and squeezes water out above water level before dumping on land
CN113655797A (en) * 2021-08-19 2021-11-16 江苏科技大学 Pollution cleaning vessel, pollution cleaning control system and pollution cleaning control method for cleaning oil pollution and floating objects on water surface
CN115075320B (en) * 2022-06-08 2024-12-13 江苏亚太水务集团股份有限公司 An underwater sludge cleaning device for urban environmental protection project construction
CN116770918A (en) * 2023-06-24 2023-09-19 湖南省水利水电勘测设计规划研究总院有限公司 Underwater environment-friendly dredging device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108505574A (en) * 2018-06-25 2018-09-07 江苏东方生态清淤工程有限公司 Environment protection-type multi-function operation ship
CN215715648U (en) * 2021-06-22 2022-02-01 中国电建集团港航建设有限公司 River channel dredging device for urban landscape river
CN114411857A (en) * 2022-02-10 2022-04-29 陈晓倩 Silt clean-up equipment in water conservancy construction

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