CN116005744A - River automatic treatment dredging device and application method thereof - Google Patents

Abstract

The invention belongs to the field of river dredging, in particular to an automatic river dredging treatment device, which aims at solving the problems that when the device is used in the prior art, stones or foreign matters at the river bottom cannot be treated, so that a conveying pipeline of the device is easy to be blocked, and construction is influenced; after the sludge is collected, the sludge and water in the sludge are inconvenient to separate, and the problem of inventory of a ship body is reduced. S1: the ship body is opened to a position where dredging is needed, and the motor is started, so that the pipeline is prevented from being blocked or a sludge pump is prevented from being damaged by sundries, the sludge extraction efficiency is improved, the use of people is facilitated, foreign matters can be pushed out, the blocking plate caused by the foreign matters is avoided, and the sludge can be blown up to be mixed with water to form slurry, so that the sludge is conveniently extracted.

Description

River automatic treatment dredging device and application method thereof

Technical Field

The invention relates to the technical field of river dredging, in particular to an automatic river dredging treatment device and a use method thereof.

Background

River dredging generally refers to river treatment, and belongs to hydraulic engineering. The silt deposited on the river bottom is blown and stirred into turbid water by mechanical equipment, and flows away along with the river water or is collected and utilized by people, so that the dredging effect is achieved, the normal exertion of various functions such as flood control, drainage, irrigation, water supply and navigation is increasingly affected by river channel siltation, the normal function of a river channel is recovered, the rapid sustainable development of economy and society is promoted, and the dredging engineering of river channel dredging is carried out.

Through examining, publication number CN114232708A clearly discloses a river course environmental protection dredging device, including boat-shaped body, the one end of boat-shaped body sets up the suction dredge, and the suction dredge includes the silt collecting box, and above-mentioned device still has following problem when using:

1. when the river bottom stone or foreign matter treatment device is used, stones or foreign matters at the river bottom cannot be treated, so that a conveying pipeline of the river bottom stone or foreign matter treatment device is easy to block, and construction is influenced;

2. after the sludge is collected, the sludge and the water in the sludge are inconvenient to separate, so that the inventory of the ship body is reduced.

Aiming at the problems, the invention provides an automatic river channel treatment dredging device and a use method thereof.

Disclosure of Invention

The invention provides an automatic river channel treatment dredging device, which solves the problems that stones or foreign matters at the river bottom cannot be treated, a conveying pipeline of the device is easy to be blocked, and construction is influenced when the automatic river channel treatment dredging device is used in the prior art; after the sludge is collected, the sludge and the water in the sludge are inconvenient to separate, and the inventory of the ship body is reduced.

The invention provides the following technical scheme:

a river course automation is administered desilting device, includes:

the ship comprises a ship body, wherein a fixing plate is fixedly connected to the outer wall of one side of the ship body, a penetrating buffer rod is arranged on the surface of the fixing plate, a collecting hopper is fixedly connected to the bottom of the buffer rod, two slide ways are arranged on two sides of the collecting hopper, a sliding frame is connected between the slide ways in a sliding manner, a plurality of baffles are fixedly connected between the top and the bottom of the sliding frame, and a driving assembly for driving the sliding frame to reciprocate is arranged at the bottom of the collecting hopper;

the bottom inner wall fixedly connected with sludge pump of hull, the feed end fixedly connected with of sludge pump inhale the material pipe, inhale the other end and collect the fixed intercommunication of fill of material pipe, the discharge end fixedly connected with discharging pipe of sludge pump.

Further, the drive assembly includes two mounting panels, a plurality of second extension springs, two push rods and two driving levers, the equal fixed connection of two mounting panels is in the bottom outer wall of collecting the fill, rotate the pivot that is connected with and run through between two mounting panels, the circumference fixedly connected with two gyro wheels of pivot, a plurality of second extension springs are fixed connection respectively in the both sides of collecting the fill, the other end of second extension spring is all fixed mutually with the carriage, the equal fixed connection of two push rods is in the bottom of carriage, the equal fixed connection of two push rods is in the circumference of pivot.

Further, the bottom of the mounting plate is fixedly connected with the same arc plate.

Further, two guardrails are fixedly connected to the top of the ship body.

Further, the first baffle, second baffle and third baffle of bottom inner wall fixedly connected with of hull, the one end of discharging pipe is located between first baffle and the second baffle, the top fixedly connected with filter screen of second baffle.

Further, fixedly connected with sealing plate for sealing between third baffle and the hull, one side of third baffle is fixed to be linked together and is equipped with the check valve on the communicating pipe, the perforation has been seted up to the bottom of hull, and the perforation is located the below of sealing plate, the bottom inner wall fixedly connected with water pump of hull, the feed liquor end fixedly connected with water suction pipe of water pump, the other end of water suction pipe passes the sealing plate, the play liquid end fixedly connected with drain pipe of water pump, the water spray box of the other end fixedly connected with intercommunication of drain pipe, the water spray box is fixed to run through the arc.

Further, the buffer rod comprises a sleeve, the sleeve penetrates through the fixing plate in a sliding mode, the inserted rod is inserted into the sleeve, a spring is fixedly connected to the top of the inserted rod and the sleeve, and the collecting hopper is fixedly connected to the bottom of the inserted rod.

Further, the top fixedly connected with of hull shakes the stick, shakes the stick output and is located the hull.

Further, the bottom fixedly connected with motor of fixed plate, the one end of motor output shaft passes the fixed plate and fixedly connected with threaded rod, telescopic circumference fixedly connected with connecting plate, threaded rod screw thread runs through the connecting plate.

The invention also provides a use method of the river automatic treatment dredging device, which comprises the following steps:

s1: the ship body is opened to a position where dredging is needed, a motor is started, the motor drives a threaded rod to rotate, and the threaded rod drives a buffer rod to move downwards through a connecting plate, so that a collecting hopper falls in sludge;

s2: starting a sludge pump, wherein the sludge pump pumps sludge through a collecting hopper, and discharges the sludge between a first baffle plate and a second baffle plate through a discharging pipe, and simultaneously, the large foreign matters are blocked through a baffle plate to avoid entering a pipeline when the sludge is pumped, and when a ship body drives the collecting hopper to move, a roller contacts the river bottom to rotate and drives a rotating shaft to rotate, and the rotating shaft drives two deflector rods to push a push rod to move, so that a sliding frame moves, and then the sliding frame resets under the pulling of a second tension spring, so that the baffle plate moves to facilitate the foreign matters to be separated;

s3: when the collecting hopper moves and contacts with stones or bulges at the river bottom, the arc-shaped plate is abutted with the bulges to enable the collecting hopper to ascend, so that the inserted rod is stored in the sleeve, and the device is prevented from being damaged due to hard contact with foreign matters at the river bottom;

s4: starting the vibrating rod to enable sludge between the first partition board and the second partition board to be precipitated, filtering water by the filter screen, entering the space between the second partition board and the third partition board, and then entering the lower part of the sealing board after secondary precipitation;

s5: and the water pump is started, water below the sealing plate is pumped by the water pump, and then the sludge is mixed with the water through the water discharge pipe and the water spraying box to form slurry, so that the slurry is conveniently pumped. .

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.

According to the invention, the baffle is arranged in the collecting hopper, so that larger sundries or stones can be blocked by the baffle, the pipeline is prevented from being blocked or a sludge pump is prevented from being damaged by the sundries, the sludge extraction efficiency is improved, and the use of people is facilitated;

according to the invention, the baffle plate can be arranged in a reciprocating manner in the moving process of the device, so that the baffle plate is quickly reset after the baffle plate moves by using the pulling force of the second tension spring, and thus foreign matters are moved through the baffle plate, and the foreign matters are pushed out, so that the baffle plate is prevented from being blocked by the foreign matters;

according to the invention, by arranging the water spraying box, after the water pump is started, the water pressure sprayed by the water pump is utilized, and the water spraying box is used for spraying, so that the sludge is blown up and mixed with the water to form sludge, and the sludge is conveniently extracted;

according to the invention, larger sundries or stones can be blocked through the baffle, the sundries are prevented from blocking a pipeline or damaging a sludge pump, the sludge extraction efficiency is improved, the use of people is facilitated, meanwhile, the foreign matters are enabled to move through the baffle, so that the foreign matters are pushed out, the foreign matters are prevented from blocking the baffle, the sludge can be blown up and mixed with water to form sludge, and the sludge is conveniently extracted.

Drawings

FIG. 1 is a schematic three-dimensional schematic diagram of an automatic river channel treatment dredging device according to an embodiment of the invention;

FIG. 2 is a schematic cross-sectional view of an embodiment of an apparatus for automatically treating and dredging a river channel;

FIG. 3 is a schematic view of a collecting bucket of an automatic river channel treatment dredging device according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of a buffer rod of a dredging device for river automatic treatment according to an embodiment of the present invention;

FIG. 5 is an enlarged schematic view of the structure of the A point in FIG. 3 of an automatic river channel treatment dredging device according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a collection bucket of an automatic river treatment dredging device according to an embodiment of the invention.

Reference numerals:

1. a hull; 2. guard bars; 3. a fixing plate; 4. a buffer rod; 5. a collection bucket; 6. a motor; 7. a threaded rod; 8. a connecting plate; 9. a first separator; 10. a second separator; 11. vibrating rod; 12. a filter screen; 13. a third separator; 14. a sealing plate; 15. perforating; 16. a sludge pump; 17. a discharge pipe; 18. a suction pipe; 19. a water pump; 20. a water suction pipe; 21. a drain pipe; 22. a slideway; 23. a carriage; 24. a baffle; 25. a mounting plate; 26. a water spraying box; 27. an arc-shaped plate; 28. a rotating shaft; 29. a sleeve; 30. a rod; 31. a spring; 32. a roller; 33. a deflector rod; 34. a second tension spring; 35. a push rod.

Detailed Description

Embodiments of the present invention will be described below with reference to the accompanying drawings in the embodiments of the present invention.

In describing embodiments of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled" and "mounted" should be interpreted broadly, and for example, "coupled" may or may not be detachably coupled; may be directly connected or indirectly connected through an intermediate medium. In addition, "communication" may be direct communication or may be indirect communication through an intermediary. Wherein, "fixed" means that the relative positional relationship is not changed after being connected to each other. References to orientation terms, such as "inner", "outer", "top", "bottom", etc., in the embodiments of the present invention are merely to refer to the orientation of the drawings and, therefore, the use of orientation terms is intended to better and more clearly illustrate and understand the embodiments of the present invention, rather than to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the embodiments of the present invention.

In embodiments of the present invention, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

In the embodiment of the present invention, "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the invention. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.

Example 1

Referring to fig. 1-6: a river course automation is administered desilting device, includes:

the ship body 1, one side outer wall fixedly connected with fixed plate 3 of the ship body 1, the surface of fixed plate 3 is equipped with the buffer rod 4 that runs through, the bottom fixedly connected with of buffer rod 4 collects the bucket 5, two slides 22 have all been seted up to the both sides of collecting the bucket 5, sliding connection has carriage 23 between a plurality of slides 22, fixedly connected with a plurality of baffles 24 between the top and the bottom of carriage 23, can block great debris or stone through baffle 24, avoid debris to block up the pipeline, improve the efficiency of mud extraction, make things convenient for people's use, the bottom of collecting the bucket 5 is equipped with the drive assembly who drives carriage 23 and carry out reciprocating motion;

the bottom inner wall fixedly connected with sludge pump 16 of hull 1, the feed end fixedly connected with of sludge pump 16 inhale material pipe 18, inhale the other end of material pipe 18 and collect fill 5 fixed intercommunication, the discharge end fixedly connected with discharging pipe 17 of sludge pump 16, sludge pump 16 is current device, draws silt through collect fill 5 when starting to discharge through discharging pipe 17.

Example 2

Referring to fig. 1-5: a river course automation is administered desilting device, includes:

the ship body 1, one side outer wall fixedly connected with fixed plate 3 of the ship body 1, the surface of fixed plate 3 is equipped with the buffer rod 4 that runs through, the bottom fixedly connected with of buffer rod 4 collects the bucket 5, two slides 22 have all been seted up to the both sides of collecting the bucket 5, sliding connection has carriage 23 between a plurality of slides 22, fixedly connected with a plurality of baffles 24 between the top and the bottom of carriage 23, can block great debris or stone through baffle 24, avoid debris to block up the pipeline, improve the efficiency of mud extraction, make things convenient for people's use, the bottom of collecting the bucket 5 is equipped with the drive assembly who drives carriage 23 and carry out reciprocating motion;

the bottom inner wall fixedly connected with sludge pump 16 of hull 1, the feed end fixedly connected with of sludge pump 16 inhale material pipe 18, inhale the other end of material pipe 18 and collect fill 5 fixed intercommunication, the discharge end fixedly connected with discharging pipe 17 of sludge pump 16, sludge pump 16 is current device, draws silt through collect fill 5 when starting to discharge through discharging pipe 17.

Referring to fig. 3 and 5, the driving assembly includes two mounting plates 25, a plurality of second tension springs 34, two push rods 35 and two deflector rods 33, the two mounting plates 25 are all fixedly connected to the outer wall of the bottom of the collecting bucket 5, a rotating shaft 28 penetrating through is rotatably connected between the two mounting plates 25, the circumference of the rotating shaft 28 is fixedly connected with two rollers 32, the plurality of second tension springs 34 are respectively and fixedly connected to two sides of the collecting bucket 5, the other ends of the second tension springs 34 are all fixed to the sliding frame 23, the two push rods 35 are all fixedly connected to the bottom of the sliding frame 23, the two push rods 35 are all fixedly connected to the circumference of the rotating shaft 28, the ship body 1 drives the collecting bucket 5 to move, the rollers 32 contact the river bottom to rotate and drive the rotating shaft 28 to rotate, the rotating shaft 28 drives the two deflector rods 33 to push the push rods 35 to move, and then the sliding frame 23 is reset under the pulling of the second tension springs 34, so that the baffle 24 can be conveniently separated from foreign matters.

Referring to fig. 1, two guardrails 2 of the top fixedly connected with of hull 1, guardrail 2 play the effect to the staff protection, and the bottom fixedly connected with motor 6 of fixed plate 3, and fixed plate 3 and fixedly connected with threaded rod 7 are passed to the one end of motor 6 output shaft, and sleeve 29's circumference fixedly connected with connecting plate 8, threaded rod 7 screw thread runs through connecting plate 8, and start-up motor 6, motor 6 drive threaded rod 7 rotate, and threaded rod 7 drives buffer rod 4 through connecting plate 8 and removes to make things convenient for people's control.

Referring to fig. 2, the bottom inner wall of the hull 1 is fixedly connected with the first partition 9, the second partition 10 and the third partition 13, one end of the discharging pipe 17 is located between the first partition 9 and the second partition 10, the top of the second partition 10 is fixedly connected with the filter screen 12, the other end of the water suction pipe 20 passes through the sealing plate 14, the outlet end of the water pump 19 is fixedly connected with the water discharge pipe 21, the other end of the water discharge pipe 21 is fixedly connected with the communicated box 26, the box 26 is fixedly penetrated through the arc 27, the water pump 19 is started, the water discharge pipe 14 is fixedly communicated with one side of the third partition 13, a one-way valve is arranged on the communicating pipe, the bottom of the hull 1 is provided with a perforation 15, the perforation 15 is located below the sealing plate 14, the bottom inner wall of the hull 1 is fixedly connected with the water pump 19, the other end of the water suction pipe 20 passes through the sealing plate 14, the other end of the water discharge pipe 21 is fixedly connected with the communicated box 26, the box 26 is fixedly penetrated through the arc 27, the water pump 19 is started, the water discharge pipe 14 is pumped below the sealing plate 14, and then the water is sprayed out through the box 26, and the water is sprayed out, and the water is conveniently sprayed out.

Referring to fig. 4, the buffer rod 4 includes a sleeve 29, the sleeve 29 slidably penetrates through the fixing plate 3, an insert rod 30 is inserted into the sleeve 29, a spring 31 is fixedly connected to the top of the insert rod 30 and the inside of the sleeve 29, the collecting bucket 5 is fixedly connected to the bottom of the insert rod 30, and when the collecting bucket 5 moves while contacting with stones or protrusions at the river bottom, the collecting bucket 5 is lifted by the interference of the arc plate 27 and the protrusions, so that the insert rod 30 is accommodated in the sleeve 29, and damage to the device due to hard contact with foreign matters at the river bottom is prevented.

Referring to fig. 2, the bottom of the mounting plate 25 is fixedly connected with the same arc plate 27, the arc plate 27 can collide with foreign matters at the river bottom, hard contact is avoided, the top of the ship body 1 is fixedly connected with a vibrating rod 11, the output end of the vibrating rod 11 is positioned in the ship body 1, the vibrating rod 11 is started, and sludge between the first partition plate 9 and the second partition plate 10 can be precipitated.

However, as well known to those skilled in the art, the working principles and wiring methods of the motor 6, the sludge pump 16, the vibrating bar 11 and the water pump 19 are well known, which are all conventional means or common general knowledge, and will not be described herein in detail, and any choice can be made by those skilled in the art according to their needs or convenience.

The invention also provides a use method of the river automatic treatment dredging device, which comprises the following steps:

s1: the ship body 1 is opened to a position where dredging is needed, the motor 6 is started, the motor 6 drives the threaded rod 7 to rotate, and the threaded rod 7 drives the buffer rod 4 to move downwards through the connecting plate 8, so that the collecting hopper 5 falls into sludge;

s2: starting a sludge pump 16, wherein the sludge pump 16 pumps sludge through a collecting hopper 5 and discharges the sludge between a first partition plate 9 and a second partition plate 10 through a discharge pipe 17, and simultaneously, the large foreign matters are blocked through a baffle 24 to avoid entering a pipeline when the sludge is pumped, and when a ship body 1 drives the collecting hopper 5 to move, a roller 32 contacts the river bottom to rotate and drives a rotating shaft 28 to rotate, the rotating shaft 28 drives two deflector rods 33 to push a push rod 35 to move, so that a sliding frame 23 is moved, and then the sliding frame 23 is reset under the pulling of a second tension spring 34, so that the baffle 24 is movable, and the foreign matters are conveniently separated;

s3: when the collecting hopper 5 moves and contacts with stones or bulges at the river bottom, the arc-shaped plate 27 is abutted against the bulges to enable the collecting hopper 5 to ascend, so that the inserted rod 30 is stored in the sleeve 29, and the device is prevented from being damaged due to hard contact with foreign matters at the river bottom;

s4: starting the vibrating rod 11 to enable sludge between the first partition board 9 and the second partition board 10 to be precipitated, filtering water by the filter screen 12, entering the space between the second partition board 10 and the third partition board 13, and then entering the lower part of the sealing board 14 after secondary precipitation;

s5: the water pump 19 is started, the water pump 19 pumps the water below the sealing plate 14, and then the water is sprayed out through the water discharge pipe 21 and the water spraying box 26, so that the sludge is mixed with the water to form slurry, and the slurry is conveniently pumped.

The present invention is not limited to the above embodiments, and any person skilled in the art can easily think about the changes or substitutions within the technical scope of the present invention, and the changes or substitutions are intended to be covered by the scope of the present invention; embodiments of the invention and features of the embodiments may be combined with each other without conflict. Therefore, the protection scope of the invention is subject to the protection scope of the claims.

Claims (10)

1. River course automation is administered desilting device, its characterized in that includes:

the ship comprises a ship body (1), wherein a fixing plate (3) is fixedly connected to the outer wall of one side of the ship body (1), a penetrating buffer rod (4) is arranged on the surface of the fixing plate (3), a collecting hopper (5) is fixedly connected to the bottom of the buffer rod (4), two slide ways (22) are respectively arranged on two sides of the collecting hopper (5), a sliding frame (23) is connected between the slide ways (22) in a sliding manner, a plurality of baffles (24) are fixedly connected between the top and the bottom of the sliding frame (23), and a driving assembly for driving the sliding frame (23) to reciprocate is arranged at the bottom of the collecting hopper (5);

the novel sludge collecting device is characterized in that a sludge pump (16) is fixedly connected to the inner wall of the bottom of the ship body (1), a suction pipe (18) is fixedly connected to the feeding end of the sludge pump (16), the other end of the suction pipe (18) is fixedly communicated with the collecting hopper (5), and a discharge pipe (17) is fixedly connected to the discharge end of the sludge pump (16).

2. The automatic river treatment dredging device according to claim 1, wherein the driving assembly comprises two mounting plates (25), a plurality of second tension springs (34), two push rods (35) and two deflector rods (33), the two mounting plates (25) are fixedly connected to the outer wall of the bottom of the collecting hopper (5), a rotating shaft (28) penetrating through the rotating shaft is rotatably connected between the two mounting plates (25), two rollers (32) are fixedly connected to the circumference of the rotating shaft (28), the plurality of second tension springs (34) are fixedly connected to two sides of the collecting hopper (5) respectively, the other ends of the second tension springs (34) are fixedly connected with the sliding frame (23), the two push rods (35) are fixedly connected to the bottom of the sliding frame (23), and the two push rods (35) are fixedly connected to the circumference of the rotating shaft (28).

3. The automatic river channel treatment dredging device according to claim 2, wherein the bottom of the mounting plate (25) is fixedly connected with the same arc plate (27).

4. A river automatic treatment dredging device according to any one of claims 1-3, wherein the top of the hull (1) is fixedly connected with two guardrails (2).

5. The automatic river channel treatment dredging device according to claim 1, wherein a first partition plate (9), a second partition plate (10) and a third partition plate (13) are fixedly connected to the inner wall of the bottom of the ship body (1), one end of the discharging pipe (17) is located between the first partition plate (9) and the second partition plate (10), and a filter screen (12) is fixedly connected to the top of the second partition plate (10).

6. The automatic river management dredging device according to claim 5, wherein a sealing plate (14) for sealing is fixedly connected between the third partition plate (13) and the ship body (1), one side of the third partition plate (13) is fixedly communicated with a communicating pipe, a one-way valve is arranged on the communicating pipe, a perforation (15) is arranged at the bottom of the ship body (1), the perforation (15) is located below the sealing plate (14), a water pump (19) is fixedly connected to the inner wall of the bottom of the ship body (1), a water suction pipe (20) is fixedly connected to the liquid inlet end of the water pump (19), the other end of the water suction pipe (20) penetrates through the sealing plate (14), a drain pipe (21) is fixedly connected to the liquid outlet end of the water pump (19), a water spraying box (26) is fixedly connected to the other end of the drain pipe (21), and the water spraying box (26) fixedly penetrates through the arc plate (27).

7. The automatic river treatment dredging device according to claim 1, wherein the buffer rod (4) comprises a sleeve (29), the sleeve (29) penetrates through the fixed plate (3) in a sliding mode, an inserting rod (30) is inserted into the sleeve (29), a spring (31) is fixedly connected to the top of the inserting rod (30) and the inside of the sleeve (29), and the collecting hopper (5) is fixedly connected to the bottom of the inserting rod (30).

8. The river automatic treatment dredging device according to claim 1, wherein the top of the ship body (1) is fixedly connected with a vibrating rod (11), and the output end of the vibrating rod (11) is positioned in the ship body (1).

9. The automatic river treatment dredging device according to claim 7, wherein the bottom of the fixing plate (3) is fixedly connected with a motor (6), one end of an output shaft of the motor (6) penetrates through the fixing plate (3) and is fixedly connected with a threaded rod (7), the circumference of the sleeve (29) is fixedly connected with a connecting plate (8), and threads of the threaded rod (7) penetrate through the connecting plate (8).

10. The method for using the river automatic treatment dredging device according to any one of claims 1-9, which is characterized by comprising the following steps:

s1: the ship body (1) is opened to a position where dredging is needed, the motor (6) is started, the motor (6) drives the threaded rod (7) to rotate, and the threaded rod (7) drives the buffer rod (4) to move downwards through the connecting plate (8), so that the collecting hopper (5) falls in the sludge;

s2: starting a sludge pump (16), wherein the sludge pump (16) pumps sludge through a collecting hopper (5) and discharges the sludge between a first partition plate (9) and a second partition plate (10) through a discharging pipe (17), blocking larger foreign matters through a baffle plate (24) when the sludge is pumped, avoiding entering a pipeline, enabling a roller (32) to contact a river bottom to rotate and drive a rotating shaft (28) to rotate when a ship body (1) drives the collecting hopper (5) to move, and enabling the rotating shaft (28) to drive two deflector rods (33) to push a push rod (35) to move so as to enable a sliding frame (23) to move, and then enabling the sliding frame (23) to reset under the pulling of a second tension spring (34) so as to enable the baffle plate (24) to move and facilitate foreign matters to be separated;

s3: when the collecting hopper (5) moves and contacts with stones or bulges at the river bottom, the arc-shaped plate (27) is abutted against the bulges to enable the collecting hopper (5) to ascend, so that the inserted rod (30) is accommodated in the sleeve (29) to prevent the device from being damaged due to hard contact with foreign matters at the river bottom;

s4: starting the vibrating rod (11) to enable sludge between the first partition board (9) and the second partition board (10) to be precipitated, filtering water by the filter screen (12) and then entering the space between the second partition board (10) and the third partition board (13), and then entering the lower part of the sealing board (14) after secondary precipitation;

s5: the water pump (19) is started, the water pump (19) pumps the water below the sealing plate (14), and then the water is sprayed out through the water discharge pipe (21) and the water spraying box (26), so that the sludge is mixed with the water to form slurry, and the slurry is convenient to pump.

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