A disturbance dredging method and a mobile disturbance dredging platform

Abstract

The invention discloses a disturbance dredging method and a mobile disturbance dredging platform, which relate to the technical field of dredging, and specifically comprise a hull, a disturbance rake head system, which is connected to the hull and stirs the sludge deposited at the bottom of a harbor basin by mechanical stirring and high-pressure jetting, a bridge system, which is arranged on the disturbance rake head system, a mud pump system, and a diesel engine system. The invention uses the hull to pull the disturbance rake head system to mechanically disturb the sludge at the bottom of the harbor basin, and while performing the mechanical disturbance, the sludge suspended by the mechanical disturbance is crushed and provided with upward buoyancy by high-pressure jetting of water or gas and releasing of bubbles, so that the overall particle size of the sludge is smaller after the disturbance, and the sludge is more convenient to float to the water surface and flow with the tide, and the disturbed sludge is extracted to the water surface by the mud pump system and the bridge system, so that the disturbed sludge can be transferred to the water surface and flow with the tide, thereby further improving the dredging effect.

Description

Technical Field

[0001] The present invention relates to the technical field of dredging, and in particular to a disturbance dredging method and a mobile disturbance dredging platform. Background Art

[0002] Dredging of water bodies is an important task, especially in rivers, ports and waterways, which plays a key role in keeping them unobstructed, preventing floods and maintaining ecological balance to ensure the normal operation of ports and waterways.

[0003] When dredging rivers, ports and waterways, mechanical dredging equipment is generally used for dredging, such as grab dredgers, cutter suction dredgers and trailing suction dredgers, all of which can clean silt, but the grab dredger has a small working range and cannot cope with large-scale silt dredging in ports and lanes. Although cutter suction dredgers and trailing suction dredgers can remove silt in a large area, the size of the rake head is limited, and the cutter suction dredgers and trailing suction dredgers require a larger sediment storage area to store the absorbed suspended silt, and after the sediment storage is full, they need to sail to a designated area to dump mud before continuing to work, which makes the entire dredging process inefficient, resulting in high dredging costs, and the overall operating costs of ports and waterways are high, which is not conducive to regular dredging and silt reduction. Summary of the invention

[0004] The object of the present invention is to provide a disturbance dredging method and a mobile disturbance dredging platform to solve the problem that the prior art has low dredging efficiency and high cost during dredging, which is not conducive to normal dredging and silt reduction.

[0005] In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

[0006] A disturbance dredging method and a mobile disturbance dredging platform, specifically comprising:

[0007] The hull is used for sailing on the harbor;

[0008] A disturbance drag head system is connected to the hull and stirs the sludge deposited at the bottom of the harbor basin by mechanical stirring and medium disturbance, and the medium disturbance includes high-pressure water jetting, high-pressure gas jetting and bubble release;

[0009] A bridge system is arranged on the disturbance rake head system and is used for the passage of the mud and sand stirred by the disturbance rake head system;

[0010] A mud pump system connected to the bridge system and used to transfer the mud stirred up by the disturbance rake system to the water surface;

[0011] Diesel engine system to power the hull, disturbance rake head system and mud pump system;

[0012] A traction mechanism is connected to the disturbance drag head system and is used to drag the disturbance drag head system to rotate around the connection with the hull;

[0013] The hull is used to tow the disturbance drag head system to move in the water of the harbor, and is used to pump the disturbed sludge to the water surface through the mud pump system.

[0014] As a preferred embodiment of the present invention, the disturbance drag head system includes a connecting rod for connecting to the hull, one end of the connecting rod is connected to a drag head frame, the drag head frame is provided with a stirring structure for sludge, a water spray assembly for spraying high-pressure water flow and a jet assembly for spraying air flow, and the stirring structure is located between the water spray assembly and the jet assembly, the water spray assembly, the stirring structure and the jet assembly work in sequence, and the bridge system is arranged on the drag head frame.

[0015] As a preferred embodiment of the present invention, the stirring structure includes a connecting shaft rotatably connected to a rake head frame, a spiral plate is spirally arranged on the connecting shaft around an axis, a plurality of disturbance plates are spirally arranged at equal intervals on the spiral plate, a plurality of extrusion plates are obliquely arranged along the axial direction of the connecting shaft on the rake head frame, and the disturbance plate abuts against the extrusion plate during rotation and loses contact with the extrusion plate after elastic deformation, and the horizontal height of the lowest point on the extrusion plate is smaller than the horizontal height of the lowest point on the spiral plate.

[0016] As a preferred solution of the present invention, a stepped groove connected to the bottom is provided on the extrusion plate, and the number of steps in the stepped groove is greater than or equal to 2.

[0017] As a preferred embodiment of the present invention, the water spray assembly includes a main pipeline arranged on the rake head frame and parallel to the connecting axis, and the main pipeline is connected to a pump body, and a plurality of water spray pipes are connected to the main pipeline at equal intervals along the axial direction of the connecting axis, and the end of each of the water spray pipes is rotatably connected to two cutting plates through a torsion spring, and the two cutting plates on each of the water spray pipes are symmetrical about the axis of the water spray pipe, and the ends of the two cutting plates are against each other to form an eight-shaped shape.

[0018] As a preferred solution of the present invention, a plurality of strip protrusions are provided on opposite sides of the two cutting boards on the same water spray pipe, and the plurality of strip protrusions are evenly distributed along the edges of the cutting boards away from the water spray pipe, and the edges of the strip protrusions are blade-shaped.

[0019] As a preferred solution of the present invention, the jet assembly includes a plurality of jet tubes and a plurality of bubble tubes which are equidistantly arranged on the rake head frame along the axial direction of the connecting shaft, and the plurality of jet tubes and the plurality of bubble tubes are respectively connected to an air pump, and the end of each of the jet tubes is connected to an air outlet plate via an intermediate rod, and each of the air outlet plates is provided with a plurality of air holes facing different directions, and a nozzle for releasing bubbles is provided at one end of each of the bubble tubes, and the plurality of jet tubes and the plurality of bubble tubes are staggered.

[0020] The present invention also provides a disturbance dredging method for a mobile disturbance dredging platform, comprising the steps of:

[0021] S100, installing the bridge system, mud pump system, diesel engine system and disturbance drag head system as required, and running them to the harbor to position them correctly;

[0022] S200, the hull is started and moves on the water surface of the harbor, the disturbance rake head system is started and moves underwater with the hull to disturb the sludge, and at the same time, the sludge is disturbed by the water spray component and the air jet component;

[0023] S300, start the mud pump system and the bridge system, and pump the disturbed sludge at the bottom of the harbor to the water surface through the mud pump system and the bridge system;

[0024] S400, after the hull moves to the edge of the harbor, the position of the hull is adjusted to desilt the harbor area that has not been desilted according to the above steps until desilting is completed in all areas of the harbor.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The present invention mechanically disturbs the silt at the bottom of the harbor basin by towing a disturbance rake head system by a hull, and at the same time, breaks up the silt suspended by the mechanical disturbance by spraying water or gas at high pressure and releasing bubbles to provide upward buoyancy, so that the overall particle size of the silt is smaller after the disturbance, making it easier for the silt to float to the water surface and flow with the tide, and the disturbed silt is pumped to the water surface by a mud pump system and a bridge system, so that the disturbed silt can be transferred to the water surface and flow with the tide, further improving the dredging effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of a mobile disturbance dredging platform of the present invention;

[0029] Figure 2 It is a schematic diagram of the three-dimensional structure of a mobile disturbance dredging platform of the present invention from another direction;

[0030] Figure 3 It is a schematic diagram of the internal structure of the disturbance rake head system of the present invention;

[0031] Figure 4 For the present invention Figure 1 A schematic diagram of the structure enlargement of part A shown in FIG.

[0032] Figure 5 For the present invention Figure 3 The enlarged schematic diagram of the structure of part B shown in FIG.

[0033] Figure 6 The present invention is a schematic flow chart of a disturbance dredging method for a mobile disturbance dredging platform.

[0034] Reference numerals used in the present invention:

[0035] 1. Hull; 2. Disturbance rake head system; 3. Towing mechanism; 201. Connecting rod; 202. Rake head frame; 203. Agitating structure; 204. Water spray assembly; 205. Jet assembly; 206. Connecting shaft; 207. Spiral plate; 208. Disturbance plate; 209. Extrusion plate; 211. Step groove; 212. Main pipeline; 213. Water spray pipe; 214. Cutting plate; 215. Strip protrusion; 216. Jet pipe; 217. Intermediate rod; 218. Air outlet plate; 219. Air hole; 220. Bubble tube; 221. Nozzle. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] The following first describes the concepts involved in the present application in conjunction with the accompanying drawings. It should be noted that the following description of each concept is only to make the content of the present application easier to understand, and does not limit the scope of protection of the present application; at the same time, the embodiments and features in the embodiments of the present application can be combined with each other in the absence of conflict. The present application will be described in detail with reference to the accompanying drawings and in conjunction with the embodiments.

[0038] Embodiment 1

[0039] like Figures 1 to 5 As shown, the present invention provides a mobile disturbance dredging platform, which specifically includes:

[0040] A hull 1, used for sailing on the harbor;

[0041] The disturbance drag head system 2 is connected to the hull 1 and stirs the sludge deposited at the bottom of the harbor basin by mechanical stirring and medium disturbance, and the medium disturbance includes high-pressure water jet, high-pressure gas jet and bubble release;

[0042] A bridge system is arranged on the disturbance drag head system 2 and is used for the mud and sand stirred by the disturbance drag head system 2 to pass through;

[0043] A mud pump system connected to the bridge system and used to transfer the sludge stirred up by the disturbance drag head system 2 to the water surface;

[0044] A diesel engine system for providing power to the hull 1, the disturbance drag head system 2 and the mud pump system;

[0045] A traction mechanism 3, connected to the disturbance drag head system 2, and used for traction of the disturbance drag head system 2 to rotate around the connection with the hull 1;

[0046] The hull 1 is used to tow the disturbance drag head system 2 to move in the water of the harbor, and is used to pump the disturbed sludge to the water surface through the mud pump system.

[0047] When the present invention is used, the diesel engine system, the mud pump system and the hull 1, the disturbance rake head system 2 and the bridge system are connected and installed, so that the entire system can operate normally under the power provided by the diesel engine system (such as driving power or electric energy), and the device generally works during the period of tidal rise and fall.

[0048] According to the actual situation and depth of the dredging area, the disturbance rake head system 2 is towed by the hull 1 to move to the corresponding position in the harbor and adjust the direction to ensure the stability of the hull 1 and make the disturbance rake head system 2 contact with the silt deposited at the bottom of the harbor. Then the disturbance rake head system 2 is started to mechanically disturb the silt. In the process of the disturbance rake head system 2 disturbing the silt, the disturbance rake head system 2 performs high-pressure injection such as water or gas, and performs secondary disturbance on the disturbed and silted silt by means of high-pressure injection, so that the silt is secondary broken under the high-pressure injection of the disturbance rake head system 2, so that the disturbed silt can float to the water surface more fully and flow with the tide, so as to avoid the silted silt from sinking again and affecting the dredging effect. The tide will carry away the disturbed silt to complete the dredging. Combined with the rise and fall of the tide, not only the dredging effect is better, but also energy is saved.

[0049] In the process of disturbing the silt, the mud pump system combined with the bridge system pumps the disturbed and dispersed silt at the bottom of the harbor to the water surface, further ensuring that the disturbed silt can effectively reach the water surface and be carried away by the tide, thereby further improving the dredging effect.

[0050] After the hull 1 moves forward to the maximum distance, the positions of the hull 1 and the disturbance drag head system 2 are adjusted again so that the path of the hull 1 is different from the first movement path, and then dredging is performed again to completely dredge the harbor.

[0051] The present invention mainly utilizes a combination of bubbles, high-pressure water jets, high-pressure gas jets, and mechanical disturbances used by the disturbance rake head system 2 to remove silt at the bottom of a harbor or riverbed, etc. It produces a strong dynamic effect in a variety of ways to suspend the silt at the bottom of a harbor or riverbed, etc., and the dredging range is larger than that of a traditional rake head. The suspended silt is transported to the water surface through a mud pump system and a bridge system, and flows with the tide, thereby replacing the long-distance mud throwing transportation of traditional dredgers, reducing energy consumption, and having a higher dredging efficiency, thereby reducing the cost required for dredging, so that the device can perform normal dredging and silt reduction.

[0052] In this embodiment, the hull 1, the diesel engine system, the bridge system and the mud pump system are all existing technologies, wherein the diesel engine system is a diesel engine or a combination of multiple diesel engines, the bridge system is similar to a pipeline for the mud pump system to extract mud and sand, and the mud pump system is an existing mud pump device. The technical principles of the above devices will not be elaborated in detail here.

[0053] The traction mechanism 3 arranged on the hull 1 is used to tow the disturbance drag head system 2 to rotate around the position connected to the hull 1 to lift or drop, so as to adjust the position of the disturbance drag head system 2 to adapt to different bottom conditions and facilitate the maintenance of the disturbance drag head system 2. The traction mechanism is a prior art, for example, one end of the traction rope is connected to the disturbance drag head system 2, and the other end of the traction rope is connected to the winding roller after passing through the guide wheel at a high place. The winding roller winds or releases the traction rope to adjust the position of the disturbance drag head system 2, or other similar structures are also possible. The technical principle of the traction mechanism will not be elaborated on here.

[0054] The disturbance drag head system 2 includes a connecting rod 201 for connecting to the hull 1, one end of the connecting rod 201 is connected to a drag head frame 202, and the drag head frame 202 is provided with a stirring structure 203 for sludge, a water spray assembly 204 for spraying high-pressure water flow and an air jet assembly 205 for spraying air flow, and the stirring structure 203 is located between the water spray assembly 204 and the air jet assembly 205, the water spray assembly 204, the stirring structure 203 and the air jet assembly 205 work in sequence, and the bridge system is arranged on the drag head frame 202.

[0055] When the disturbance drag head system 2 is in use, the drag head frame 202 is connected to the hull 1 through the connecting rod 201, and the drag head frame 202 can rotate around the hull 1 through the connecting rod 201, so that the stirring structure 203, the water spray assembly 204 and the jet assembly 205 can effectively approach the silt to disturb the silt.

[0056] The stirring structure 203 is used to stir the silt mechanically so that the silt is disturbed and floats up from the bottom of the harbor. The water spray component 204 and the air jet component 205 perform secondary crushing on the floated silt by means of high-pressure water jets and gas jets, thereby further reducing the size of the floated silt. This not only enables the silt to float to the water surface more fully after being disturbed and be carried away by the tide, but also because the volume of the silt is further reduced, it is easier for the mud pump system to extract it through the bridge system, thereby further improving the silt extraction and dredging effects.

[0057] The present invention utilizes a stirring structure 203, a water spraying assembly 204 and an air jet assembly 205 to respectively realize mechanical disturbance of the sludge, spray high-pressure water and spray high-pressure gas and bubbles, so that the entire disturbance rake head system 2 can produce a strong dynamic effect to suspend the sludge deposited in the harbor or riverbed, and with the help of a mud pump system and a bridge system, the suspended sludge is transported to the water surface to follow the movement of the water flow or tide, effectively reducing energy consumption, and replacing the process of long-distance transportation and mud throwing by traditional dredgers, effectively reducing the cost of dredging, and improving the dredging efficiency, so that the device can perform normal dredging and silt reduction.

[0058] The stirring structure 203 includes a connecting shaft 206 rotatably connected to the rake head frame 202, a spiral plate 207 is spirally arranged around the axis on the connecting shaft 206, and a plurality of disturbance plates 208 are spirally arranged at equal intervals on the spiral plate 207. A plurality of extrusion plates 209 are obliquely arranged along the axial direction of the connecting shaft 206 on the rake head frame 202, and the disturbance plates 208 are against the extrusion plates 209 when rotating, and are out of contact with the extrusion plates 209 after elastic deformation, and the horizontal height of the lowest point on the extrusion plate 209 is less than the horizontal height of the lowest point on the spiral plate 207.

[0059] When the stirring structure 203 is in use, the connecting shaft 206 is driven to rotate by a driving device such as a motor, thereby driving the spiral plate 207 to rotate synchronously, so that the multiple disturbance plates 208 on the spiral plate 207 also rotate accordingly. When the rake head frame 202 contacts the silt, the multiple disturbance plates 208 stir the silt, so that the silt deposited at the bottom of the harbor is disturbed and floats up, and the spiral plate 207 and the multiple disturbance plates 208 arranged in a spiral manner have a guiding effect on the floating silt, preventing the silt from escaping to the surroundings, making it easier for the water spray component 204 and the air jet component 205 to perform secondary disturbance on the silt.

[0060] In the process of following the rotation of the spiral plate 207, the disturbance plate 208 will come into contact with one side of the extrusion plate 209. Since the extrusion plate 209 is set at an angle, the disturbance plate 208 will gradually deform during the rotation process. When the disturbance plate 208 loses contact with the extrusion plate 209, the deformation will be restored, thereby exerting a force on the sediment roughly along the axial direction of the connecting shaft 206. In the process of restoring the deformation, the disturbance plate 208 will swing multiple times, further improving the disturbance effect on the sediment.

[0061] The extrusion plate 209 is provided with a stepped groove 211 communicating with the bottom, and the number of steps in the stepped groove 211 is greater than or equal to 2.

[0062] When the disturbance plate 208 moves to contact the step groove 211 on the extrusion plate 209, the rear side of the disturbance plate 208 in the rotation direction continuously contacts the steps on the step groove 211, so that the disturbance plate 208 recovers its deformation in a step-like manner and collides with the step groove 211 to vibrate, thereby further enhancing the disturbance effect of the disturbance plate 208.

[0063] The water spray assembly 204 includes a main pipe 212 arranged on the rake head frame 202 and parallel to the connecting shaft 206, and the main pipe 212 is connected to a pump body. A plurality of water spray pipes 213 are connected to the main pipe 212 at equal intervals along the axial direction of the connecting shaft 206. The end of each water spray pipe 213 is rotatably connected to two cutting plates 214 through a torsion spring. The two cutting plates 214 on each water spray pipe 213 are symmetrical about the axis of the water spray pipe 213, and the ends of the two cutting plates 214 are against each other to form an eight-shaped shape.

[0064] When in use, the water spray assembly 204 supplies water to the multiple water spray pipes 213 through the main pipeline 212, and sprays water through the multiple water spray pipes 213 to perform secondary disturbance on the disturbed sediment, thereby improving the disturbance effect on the sediment, thereby improving the cleaning effect on the silt.

[0065] Considering that the water spray assembly 204 is located at the bottom of the water and close to the silt, and may even be in contact with the silt, two cutting plates 214 are set at the end of the water spray pipe 213, and the ends of the two cutting plates 214 are in contact to form an eight-shaped shape, so that the contacting end positions of the two cutting plates 214 are sharp, so that when the water spray assembly 204 comes into contact with the silt, the two cutting plates 214 break the silt, and when the water flow is sprayed, the water flow pushes the two cutting plates 214 to both sides, so that the water flow can be normally sprayed to the mud and sand to disturb it, which not only avoids the mud and sand from clogging the water spray pipe 213, but also facilitates the water spray pipe 213 to enter the silt.

[0066] A plurality of strip protrusions 215 are arranged on opposite sides of the two cutting plates 214 on the same water spray pipe 213, and the plurality of strip protrusions 215 are evenly distributed along the edge of the cutting plate 214 away from the water spray pipe 213, and the edge of the strip protrusion 215 is blade-shaped.

[0067] By providing a plurality of blade-shaped strip protrusions 215 , the two cutting plates 214 can cut into the mud through the strip protrusions 215 when impacted by water flow and open more conveniently and quickly.

[0068] The jet assembly 205 includes a plurality of jet tubes 216 and a plurality of bubble tubes 220 which are equidistantly arranged on the rake head frame 202 along the axial direction of the connecting shaft 206, and the plurality of jet tubes 216 and the plurality of bubble tubes 220 are respectively connected to an air pump, and the end of each jet tube 216 is connected to an air outlet plate 218 through an intermediate rod 217, and each air outlet plate 218 is provided with a plurality of air holes 219 facing in different directions, and one end of each bubble tube 220 is provided with a nozzle 221 for releasing bubbles, and the plurality of jet tubes 216 and the plurality of bubble tubes 220 are staggered.

[0069] When the jet assembly 205 is in use, it jets air outward through the jet pipe 216 to disturb the sludge. The jetted air passes through multiple air holes 219 on the air outlet plate 218, thereby changing the direction of the airflow, making the impact disturbance angle of the airflow on the sludge larger, thereby improving the impact disturbance effect on the sludge.

[0070] However, due to the limited extraction efficiency of the mud pump and the bridge system, some of the disturbed mud cannot be pumped to the water surface. Therefore, bubble tubes 220 and nozzles 221 are provided, and gas is input into multiple bubble tubes 220. The bubble tubes 220 spray the input gas through the nozzles 221 to form bubbles, thereby providing upward buoyancy for the mud that cannot be extracted in time through the bridge system, so that this part of the mud floats to the water surface without being extracted by the bridge system and the mud pump, thereby improving the dredging effect of the mud.

[0071] Furthermore, the plurality of bubble tubes 220 and the plurality of air jet tubes 216 are arranged alternately, so that the air jet tubes 216 and the bubble tubes 220 have uniform disturbance effects on the sediment, so that the sediment at each location is substantially acted upon by the same force.

[0072] Embodiment 2

[0073] like Figure 6 As shown, the present invention also provides a disturbance dredging method for a mobile disturbance dredging platform, comprising the steps of:

[0074] S100, the bridge system, the mud pump system 4, the diesel engine system and the disturbance drag head system 2 are installed as required, and run to the correct position in the harbor;

[0075] S200, the hull 1 starts and moves on the water surface of the harbor, the disturbance drag head system 2 starts and moves underwater with the hull 1 to disturb the sludge, and at the same time, the sludge is disturbed by the water spray component 204 and the air jet component 205;

[0076] S300, start the mud pump system and the bridge system, and pump the disturbed sludge at the bottom of the harbor to the water surface through the mud pump system and the bridge system;

[0077] S400, after the hull 1 moves to the edge of the harbor, the position of the hull 1 is adjusted to desilt the harbor area that has not been desilted according to the above steps until desilting is completed in all areas of the harbor.

[0078] The embodiments and / or implementation methods described above are only used to illustrate the preferred embodiments and / or implementation methods for realizing the technology of the present invention, and are not intended to limit the implementation methods of the technology of the present invention in any form. Any technical personnel in this field may make slight changes or modifications to other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the present invention, but they should still be regarded as technologies or embodiments that are essentially the same as the present invention.

[0079] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and its core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the invention to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A mobile disturbance dredging platform, characterized in that: Specifically include: A hull (1) for navigating on a harbor; A disturbance drag head system (2) is connected to the hull (1) and stirs the sludge deposited at the bottom of the harbor basin by mechanical stirring and medium disturbance, wherein the medium disturbance includes high-pressure water jetting, high-pressure gas jetting and bubble release; A bridge system is arranged on the disturbance drag head system (2) and is used for allowing the mud and sand stirred by the disturbance drag head system (2) to pass through; A mud pump system connected to the bridge system and used to transfer the mud stirred up by the disturbance rake head system (2) to the water surface; A diesel engine system for providing power to the hull (1), the disturbance drag head system (2) and the mud pump system; A traction mechanism (3) connected to the disturbance drag head system (2) and used for traction of the disturbance drag head system (2) to rotate around a connection with the hull (1); The hull (1) is used to tow the disturbance drag head system (2) to move in the water of the harbor, and to pump the disturbed sludge to the water surface through the mud pump system; The disturbance drag head system (2) comprises a connecting rod (201) for connecting to the hull (1); one end of the connecting rod (201) is connected to a drag head frame (202); a stirring structure (203) for sludge, a water spray assembly (204) for spraying high-pressure water flow, and an air jet assembly (205) for spraying air flow are arranged on the drag head frame (202); the stirring structure (203) is located between the water spray assembly (204) and the air jet assembly (205); the water spray assembly (204), the stirring structure (203), and the air jet assembly (205) work in sequence; and the bridge system is arranged on the drag head frame (202); The stirring structure (203) comprises a connecting shaft (206) rotatably connected to a rake head frame (202); a spiral plate (207) is spirally arranged around an axis on the connecting shaft (206); a plurality of disturbance plates (208) are spirally arranged at equal intervals on the spiral plate (207); a plurality of extrusion plates (209) are obliquely arranged along the axial direction of the connecting shaft (206) on the rake head frame (202); the disturbance plates (208) abut against the extrusion plates (209) when rotating, and are disengaged from the extrusion plates (209) after elastic deformation; and the horizontal height of the lowest point on the extrusion plate (209) is smaller than the horizontal height of the lowest point on the spiral plate (207).

2. A mobile disturbance dredging platform according to claim 1, characterized in that: The extrusion plate (209) is provided with a stepped groove (211) connected to the bottom, and the number of steps in the stepped groove (211) is greater than or equal to 2.

3. A mobile disturbance dredging platform according to claim 1, characterized in that: The water spray assembly (204) comprises a main pipe (212) arranged on the rake head frame (202) and parallel to the connecting shaft (206), and the main pipe (212) is connected to a pump body, and a plurality of water spray pipes (213) are connected to the main pipe (212) at equal intervals along the axial direction of the connecting shaft (206), and the end of each water spray pipe (213) is rotatably connected to two cutting plates (214) via a torsion spring, and the two cutting plates (214) on each water spray pipe (213) are symmetrical about the axis of the water spray pipe (213), and the ends of the two cutting plates (214) are abutted against each other to form an eight-shaped shape.

4. A mobile disturbance dredging platform according to claim 3, characterized in that: A plurality of strip-shaped protrusions (215) are provided on opposite sides of two cutting plates (214) on the same water spray pipe (213), and the plurality of strip-shaped protrusions (215) are evenly distributed along the edge of the cutting plate (214) away from the water spray pipe (213), and the edges of the strip-shaped protrusions (215) are blade-shaped.

5. The mobile disturbance dredging platform according to claim 1, characterized in that: The jet assembly (205) comprises a plurality of jet tubes (216) and a plurality of bubble tubes (220) which are arranged on the drag head frame (202) at equal intervals along the axial direction of the connection shaft (206), and the plurality of jet tubes (216) and the plurality of bubble tubes (220) are respectively connected to an air pump, and the end of each jet tube (216) is connected to an air outlet plate (218) via an intermediate rod (217), and each air outlet plate (218) is provided with a plurality of air holes (219) facing in different directions, and one end of each bubble tube (220) is provided with a nozzle (221) for releasing bubbles, and the plurality of jet tubes (216) and the plurality of bubble tubes (220) are arranged in a staggered manner.

6. A disturbance dredging method using a mobile disturbance dredging platform according to any one of claims 1 to 5, characterized in that: Includes steps: S100, installing the bridge system, the mud pump system (4), the diesel engine system and the disturbance drag head system (2) as required, and running them to the correct position in the harbor; S200, the hull (1) starts and moves on the water surface of the harbor, the disturbance rake head system (2) starts and moves underwater with the hull (1) to disturb the sludge, and at the same time, the sludge is disturbed by the water spray component (204) and the air jet component (205); S300, start the mud pump system and the bridge system, and pump the disturbed sludge at the bottom of the harbor to the water surface through the mud pump system and the bridge system; S400, after the hull (1) moves to the edge of the harbor, the position of the hull (1) is adjusted to desilt the harbor area that has not been desilted according to the above steps, until desilting is completed in all areas of the harbor.

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