Sludge suction and discharge device suitable for ocean facilities
By using drill bits to crush mud and sand in marine facilities, spraying the sprinkler to form a solid-liquid mixed liquid and transporting high-pressure gas to form a gas-liquid solid-solid mixed liquid, the problem of low construction efficiency in the existing technology is solved, and the sludge flushing and slurry discharge are synchronized, improving construction efficiency and safety.
Patent Information
- Application Number
- CN202422271140.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-18
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-18
AI Technical Summary
The existing pile pipe internal mud flushing device separates the mud flushing and slurry drainage work, and the construction efficiency is low, and the internal dredging work cannot be efficiently and safely completed when the spraying device and the subsea mud surface target distance is zero or negative.
The drill bit is used to crush the mud and sand, and the high-pressure nozzle is sprayed to form a mixed liquid of solid and liquid. The high-pressure gas is transported through the gas transmission pipe to form a mixed liquid of gas-liquid solid and solid. The mixed liquid is absorbed and discharged to the outside of the steel pile using the principle of gas lifting and reverse circulation, so as to achieve synchronous mud flushing and slurry drainage. The lifting cable is used to accurately control the distance between the mud suction and discharge assembly and the mud surface.
It improves construction efficiency, reduces safety risks and costs, ensures that the silt and drilling fluid are fully mixed, and improves the discharge efficiency of silt and sand inside the steel pile.
Smart Images
Figure CN223135226U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of marine facilities, and particularly relates to a mud suction and discharge device applicable to marine facilities. Background Art
[0002] The mud suction and discharge construction of marine facilities is a complex task, which needs to consider various human and natural factors and requires various technical supports. Taking an offshore steel pile as an example, the steel pile must be cut at a position 4m below the mud surface, and generally, the inner cut or outer cut method can be selected. For the outer cut method, a large pit with enough space for cutting the steel pile needs to be created outside the steel pile, and for safety reasons, the dug pit needs to have a slope, which increases the construction difficulty. For the inner cut method, all the sediment inside the steel pile needs to be discharged first, which is restricted by many factors, including the mud discharge depth, the inclination of the pile, the mud quality, and the space inside the steel pile. However, compared with the outer cut method that requires digging a pit outside the steel pile, this mud discharge method has less workload and less risk. The existing mud flushing device inside the pile pipe liquefies the silt in a large range inside the pile pipe by setting a first nozzle, a second nozzle, and a third nozzle in the pile pipe flushing device, and flushes and cleans the silt in the mud flushing cylinder by setting a mud flushing device and a surrounding flushing pipe to prevent the mud flushing cylinder from being blocked; the silt is discharged to a far place through a mud discharge pile pipe to avoid siltation, solves the problem of silt existing in the vertical tubular object, creates a dry-wet working environment inside the pipe, and provides favorable conditions for cutting inside the pile pipe.
[0003] However, due to the limited working area inside the pile pipe, the existing mud flushing device inside the pile pipe constructs the mud flushing and slurry discharging work separately, with low construction efficiency. Moreover, when the target distance between the flushing device and the seabed mud surface is zero or negative, there is no corresponding control measure, and the internal silt cleaning work cannot be completed efficiently and safely. Therefore, a mud suction and discharge device applicable to marine facilities for solving the above problems is proposed. Content of the Utility Model
[0004] The purpose of the utility model is to provide a mud suction and discharge device applicable to marine facilities, which solves the technical problem that the existing mud flushing device inside the pile pipe constructs the mud flushing and slurry discharging work separately, with low construction efficiency.
[0005] To achieve the above purpose, the utility model provides a mud suction and discharge device applicable to marine facilities, including:
[0006] A fixed support frame is arranged at the upper end of the steel pile, and the fixed support frame is used for installing a working platform;
[0007] A mud suction and discharge assembly is arranged inside the steel pile, and the mud suction and discharge assembly includes:
[0008] A drill pipe, a power head is arranged at the first end of the drill pipe, the output end of the power head is connected with a drill bit, and the drill bit is used for loosening the sediment;
[0009] A high-pressure nozzle is provided on the drill bit, and the high-pressure nozzle is used for flushing sediment.
[0010] A sludge discharge pipe is arranged at the first end of the drill pipe, and the sludge discharge pipe is used for sucking sediment.
[0011] An engineering ship is parked near the steel pile. A cable arranging device is installed on the engineering ship, and the cable arranging device is connected to the suction and discharge sludge assembly through a lifting cable.
[0012] Preferably, a pulley block is arranged on the fixed support frame. The pulley block includes: a first fixed pulley connected to the top surface of the working platform through a first fixing frame; a second fixed pulley connected to the top of the fixed support frame through a second fixing frame; a movable pulley connected to the drill pipe through a pulling rope, and the lifting cable sequentially passes through the first fixed pulley, the second fixed pulley and the movable pulley and is connected to the second fixing frame.
[0013] Preferably, a guiding and supporting member is arranged on the outer side wall of the drill pipe, and the guiding and supporting member is slidably connected to the inner side wall of the steel pile.
[0014] Preferably, a high-pressure water pump is arranged on the top surface of the working platform, and the high-pressure water pump is connected to the high-pressure nozzle through a water injection pipeline.
[0015] Preferably, a plurality of air delivery pipes are arranged at the first end of the drill pipe, an air compressor is arranged on the top surface of the working platform, and the air compressor is connected to the plurality of air delivery pipes through an air injection pipeline.
[0016] Preferably, the air delivery pipe is integrally in an L shape, and the air outlet of the air delivery pipe faces the sediment.
[0017] Preferably, a sedimentation tank is arranged on the work ship, a reflux pipe is arranged in the sedimentation tank, and the other end of the reflux pipe communicates with the inside of the steel pile.
[0018] Preferably, an extension pipe is arranged at the upper end of the sludge discharge pipe, the extension pipe is fixed on the fixed support frame, and one end of the extension pipe is located above the sedimentation tank.
[0019] Compared with the above-mentioned background art, a mud suction and discharge device applicable to marine facilities provided by the present utility model has the following beneficial effects: A drill bit is used to break the sediment in the steel pile, and then a high-pressure nozzle is used to spray and flush the drilling fluid at a high speed to disperse the sediment and mix it with the sediment to form a solid-liquid two-phase mixture. An air delivery pipe conveys high-pressure gas into the steel pile, and the high-pressure gas further mixes with the sediment to form a gas-liquid-solid three-phase mixture. The air-lift reverse circulation principle is used to suck and discharge the gas-liquid-solid three-phase mixture to the outside of the steel pile, realizing the mud discharge inside the steel pile, and synchronizing the mud flushing and slurry discharging operations, effectively improving the construction efficiency. Moreover, no manual participation in underwater construction is required, reducing the safety risks and construction costs of construction operations. On the other hand, the cable arranging device precisely controls the distance between the mud suction and discharge assembly and the mud surface inside the steel pile through the lifting cable, so that the high-pressure nozzle always maintains a certain distance from the mud surface inside the steel pile, ensuring that the drilling fluid sprayed by the high-pressure nozzle generates the best impact force on the sediment, enabling the sediment to be fully mixed with the drilling fluid, and effectively improving the sediment discharge efficiency inside the steel pile. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model, and those of ordinary skill in the art can also obtain other drawings according to the provided drawings without creative efforts.
[0021] Figure 1 It is a plan view of the mud suction and discharge device provided by the embodiment of the present utility model;
[0022] Figure 2 It is a plan view of the mud suction and discharge assembly provided by the embodiment of the present utility model;
[0023] Figure 3 It is a plan view of the pulley block provided by the embodiment of the present utility model.
[0024] Specifically, 1 - air compressor; 2 - high-pressure water pump; 3 - fixed support frame; 4 - mud suction and discharge assembly; 401 - drill pipe; 402 - air inlet; 403 - power head; 404 - guiding and supporting member; 405 - water inlet; 406 - air delivery pipe; 407 - mud discharge pipe; 408 - drill bit; 409 - high-pressure nozzle; 410 - lifting cable; 5 - steel pile; 6 - return pipe; 7 - sedimentation tank; 8 - cable arranging device; 9 - engineering ship; 10 - sediment; 11 - pulley block; 1101 - first fixed pulley; 1102 - second fixed pulley; 1103 - movable pulley. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0026] In order to enable those skilled in the art in the technical field to better understand the solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0027] As Figure 1 and Figure 2 shown, to achieve the above object, the present invention provides a mud suction and discharge device applicable to marine facilities, including: a fixed support frame 3 provided at the upper end of a steel pile 5, wherein the lower end of the steel pile 5 is buried in the seabed, a working platform is installed on the fixed support frame 3, and the top surface of the working platform coincides with the horizontal plane, which helps the staff to walk and construct normally on the working platform. Guardrails are installed around the working platform to prevent the staff from falling into the sea water from the working platform.
[0028] A mud suction and discharge assembly 4 is placed in the steel pile 5. Specifically, a cable dispenser 8 is connected to the mud suction and discharge assembly 4 through a lifting cable 410. The cable dispenser 8 hoists the mud suction and discharge assembly 4 through the lifting cable 410 and places it into the steel pile 5. The mud suction and discharge assembly 4 includes: a drill pipe 401, a power head 403 is provided at the lower end of the drill pipe 401, and the output end of the power head 403 is connected to a drill bit 408. The power head 403 provides driving force for the drill bit 408, and the drill bit 408 rotates to loosen and break the sediment 10.
[0029] A high-pressure nozzle 409 is provided on the drill bit 408. The high-pressure nozzle 409 is used to spray and wash the sediment 10. A mud discharge pipe 407 is provided at the lower end of the drill pipe 401. The mud discharge pipe 407 is used to suck and discharge the sediment 10. Specifically, the high-pressure nozzle 409 sprays the drilling fluid at a high speed. The drilling fluid can be the sea water near the steel pile 5. The sediment 10 after being broken by the drill bit 408 is dispersed and mixed with it to form a solid-liquid two-phase mixture. Then, high-pressure gas is transported into the steel pile 5 through a gas transmission pipe 406. The high-pressure gas is further mixed with the sediment 10 to form a gas-liquid-solid three-phase mixture, and the gas-liquid-solid three-phase mixture is sucked and discharged to the outside of the steel pile 5 through the mud discharge pipe 407.
[0030] Among them, a construction ship 9 is parked near the steel pile 5. The construction ship 9 is located at the sea level, and the cable dispenser 8 is installed on the construction ship 9, which is convenient for workers to repair and operate. The cable dispenser unwinds and winds up the hoisting cable 410, thereby controlling the rise and fall of the suction and discharge mud assembly 4. While ensuring that the drill bit 408 rotates at a high speed to dig the sediment 10, the best distance is maintained between the high-pressure nozzle 409 and the sediment 10, that is, the height position of the suction and discharge mud assembly 4 in the steel pile 5 is accurately controlled, ensuring that the drilling fluid sprayed by the high-pressure nozzle 409 generates the best impact force on the sediment 10, so that the sediment 10 is fully dispersed, and then ensuring that the sediment 10 is fully mixed with the drilling fluid.
[0031] During use, the fixed support frame 3 is fixed above the steel pile 5. The cable dispenser 8 lifts the suction and discharge mud assembly 4 through the hoisting cable 410 and places it into the steel pile 5. The drill bit 408 digs the sediment 10 in the steel pile 5, and the high-pressure nozzle 409 sprays the drilling fluid into the steel pile 5 at a high speed. The drilling fluid disperses the sediment 10 and mixes with the sediment 10. The cable dispenser 8 controls the height position of the suction and discharge mud assembly 4 in the steel pile 5 through the hoisting cable 410, ensuring that the drilling fluid sprayed by the high-pressure nozzle 409 generates the best impact force on the sediment 10, so that the sediment 10 can be fully mixed with the drilling fluid, providing a carrier for the air-lift reverse circulation operation. High-pressure gas is conveyed into the steel pile 5 through the gas transmission pipe 406. After the high-pressure gas, drilling fluid, and sediment 10 are mixed, they become a gas-liquid-solid three-phase mixture. Using the air-lift reverse circulation principle, the gas-liquid-solid three-phase mixture is suctioned and discharged to the outside of the steel pile 5, realizing the simultaneous operation of mud discharge, mud flushing, and slurry discharge inside the steel pile 5, effectively improving the discharge efficiency of the sediment 10 inside the steel pile 5.
[0032] As Figure 3 shown, a pulley block 11 is arranged on the fixed support frame 3. Specifically, the pulley block 11 includes: a first fixed pulley 1101, which is connected to the top surface of the working platform through a first fixing frame; a second fixed pulley 1102, which is connected to the top of the fixed support frame 3 through a second fixing frame; a movable pulley 1103, which is connected to the drill pipe 401 through a pulling rope. The hoisting cable 410 passes through the first fixed pulley 1101, the second fixed pulley 1102, and the movable pulley 1103 in sequence and is connected to the second fixing frame. The setting of the above pulley block 11 can reduce the force exerted when the cable dispenser winds up, while ensuring the stable rise or fall of the suction and discharge mud assembly 4, reducing the power consumption of the cable dispenser, and reducing the equipment usage cost. Among them, the fixed support frame 3 should meet the strength requirements during design to ensure that the first fixing frame and the second fixing frame can bear the weight of the suction and discharge mud assembly 4.
[0033] Specifically, when the cable arranging device pays out and winds up the hoisting cable 410, the mud suction and discharge assembly 4 and the movable pulley 1103 descend under their own gravity, and are positioned below the mud suction and discharge assembly 4. When the cable arranging device winds up the hoisting cable 410, the hoisting cable 410 drives the movable pulley 1103 to rise, and the movable pulley 1103 drives the mud suction and discharge assembly 4 to rise synchronously, completing the lifting of the mud suction and discharge assembly 4. The hoisting cable 410 successively passes through the first fixed pulley 1101, the second fixed pulley 1102 and the movable pulley 1103 to change the direction of movement and drive the mud suction and discharge assembly 4 to rise and fall, ensuring the normal operation of the mud suction and discharge device and avoiding accidents.
[0034] In the second embodiment of the present utility model, the cable arranging device is directly placed on the fixed support frame 3 or the working platform. At this time, the cable arranging device will not change its own position with the movement of the engineering ship 9, which can effectively ensure the position stability of the mud suction and discharge assembly 4 in the steel pile 5, ensure that the drilling fluid sprayed by the high-pressure nozzle 409 always generates the best impact force on the sediment 10, and further ensure the sediment discharge efficiency inside the steel pile 5.
[0035] In one embodiment of the present utility model, a guiding and supporting member 404 is provided on the outer side wall of the drill pipe 401. The guiding and supporting member 404 is slidably connected to the inner side wall of the steel pile 5. By the guiding and supporting member 404, the relative rotation between the drill pipe 401 and the steel pile 5 is limited. When the drill bit 408 rotates at a high speed, it is ensured that the drill pipe 401 will not rotate relative to the steel pile 5 to ensure the normal drilling of the drill bit 408 into the sediment 10. In addition, the guiding and supporting member 404 and the inner side wall of the steel pile 5 are kept slidably connected in the axial direction, so as to ensure that under the pulling action of the hoisting cable 410, the mud suction and discharge assembly 4 can rise freely. At the same time, when the cable arranging device pays out and winds up the hoisting cable 410 and the hoisting cable 410 no longer has a pulling effect on the mud suction and discharge assembly 4, the mud suction and discharge assembly 4 can freely descend under its own gravity.
[0036] In one embodiment of the present utility model, a high-pressure water pump 2 is provided on the top surface of the working platform. The high-pressure water pump 2 is connected to the high-pressure nozzle 409 through a water injection pipeline. Specifically, a water inlet 405 is provided at the lower end of the drill pipe 401. The water inlet 405 is communicated with the high-pressure nozzle 409 through an internal pipeline. The water injection pipeline is hermetically connected to the water inlet 405. The high-pressure water pump 2 sucks seawater outside the steel pile 5 and transports the seawater to the high-pressure nozzle 409 through the water injection pipeline. The high-pressure nozzle 409 sprays at a high speed when the drill bit 408 drills the sediment 10, further dispersing and mixing with the sediment 10.
[0037] It should be noted that the high-pressure nozzle 409 is located above the drill bit 408. When the drill bit 408 drills the sediment 10, the high-pressure nozzle 409 has a certain distance from the sediment 10 to ensure that the drilling fluid sprayed by the high-pressure nozzle 409 generates the best impact force on the sediment 10.
[0038] In addition, several gas pipelines 406 are provided at the lower end of the drill pipe 401, specifically two. An air compressor 1 is provided on the top surface of the working platform. The air compressor 1 is connected to several gas pipelines 406 through an injection gas pipeline. Specifically, an air inlet 402 is provided at the lower end of the drill pipe 401. The air inlet 402 communicates with the upper ends of the gas pipelines 406. The lower ends of the gas pipelines 406 are provided with air outlets. The air compressor 1 produces high-pressure gas and transports it to the gas pipelines 406 through the injection gas pipeline. The gas pipelines 406 transport the high-pressure gas into the steel pile 5 through the air outlets. The high-pressure gas further mixes with the sediment 10 to form a gas-liquid-solid three-phase mixture. Using the air-lift reverse circulation principle, the gas-liquid-solid three-phase mixture is pressed into the mud discharge pipe 407 and then discharged from the steel pile 5 through the mud discharge pipe 407.
[0039] In addition, a sedimentation tank 7 is provided on the workboat. After the gas-liquid-solid three-phase mixture is discharged from the steel pile 5 through the mud discharge pipe 407, it enters the sedimentation tank 7. After sedimentation in the sedimentation tank 7, the discharged solid sediment 10 is centrally collected and processed to prevent the solid sediment 10 from entering the sea water, thus playing a role in marine environmental protection. In addition, a return pipe 6 is provided in the sedimentation tank 7. The right end of the return pipe 6 communicates with the sedimentation tank 7, and the left end of the return pipe 6 extends into the steel pile 5. The liquid in the sedimentation tank 7 is drained back into the steel pile 5 through the return pipe 6 for recycling, reducing water resource waste. A filter screen is provided at the end of the return pipe 6 located in the sedimentation tank 7 to prevent the sediment 10 in the sedimentation tank 7 from entering the steel pile 5.
[0040] In an embodiment of the present utility model, the gas pipeline 406 is integrally in an L shape, and the air outlet of the gas pipeline 406 faces the sediment 10. The L-shaped gas pipeline 406 can blow the gas pipeline 406 to the sediment 10 in the steel pile 5 with the largest area, improving the mixing efficiency of the high-pressure gas, sediment 10, and sea water. Correspondingly, the mud discharge pipe 407 is integrally in an L shape. The L-shaped mud discharge pipe 407 can suck the gas-liquid-solid three-phase mixture in the steel pile 5 with the largest area, improving the mixing efficiency of the high-pressure gas, sediment 10, and sea water, and further improving the discharge efficiency of the sediment 10 inside the steel pile 5. It should be noted that an extension pipe is provided at the upper end of the mud discharge pipe 407. The extension pipe is fixed on the fixed support frame 3, and the right end of the extension pipe is always located above the sedimentation tank 7 to ensure that the gas-liquid-solid three-phase mixture discharged by the mud discharge pipe 407 can be accurately transported into the sedimentation tank 7 for centralized collection.
[0041] When the utility model is in use, the fixed support frame 3 is fixed above the steel pile 5. The cable arrangement device 8 on the engineering ship 9 is connected to the suction and discharge mud assembly 4 through the hoisting cable 410. Driven by the cable arrangement device 8, the hoisting cable 410 passes through the first fixed pulley 1101, the second fixed pulley 1102 and the movable pulley 1103 in sequence to drive the suction and discharge mud assembly 4 to descend. The suction and discharge mud assembly 4 is lowered into the steel pile 5. The cable arrangement device 8 controls the height position of the suction and discharge mud assembly 4 in the steel pile 5 through the hoisting cable 410. The drill bit 408 digs the sediment 10 in the steel pile 5, and the high-pressure nozzle 409 sprays the drilling fluid into the steel pile 5 at a high speed. The drilling fluid disperses the sediment 10 and mixes with the sediment 10, providing a carrier for the air-lift reverse circulation operation. High-pressure gas is conveyed into the steel pile 5 through the gas transmission pipe 406. After the high-pressure gas, the drilling fluid and the sediment 10 are mixed, they are discharged out of the steel pile 5 through the mud discharge pipe 407. The cable arrangement device 8 drives the suction and discharge mud assembly 4 to slowly descend through the hoisting cable 410 until the sediment 10 in the steel pile 5 is completely cleaned up.
[0042] It should be noted that since there is concrete cement for fixing the steel pile 5 inside the steel pile 5, the steps of the drill bit 408 digging the sediment 10 in the steel pile 5 include: first using the hob bit 408 to completely break up the concrete cement, and then using the scraper bit 408 to drill the underwater sediment 10, thereby effectively improving the mud discharge work efficiency, enabling the overall suction and discharge mud device to be applicable to different mud qualities, and improving the mud discharge work efficiency. In addition, a drill bit water eye (not shown in the figure) is arranged on the front end face of the hob bit, and the drill bit water eye is connected to the water injection pipeline to improve the concrete cement crushing efficiency of the hob bit and further improve the mud discharge work efficiency.
[0043] In summary, after the sediment 10 is broken, the high-pressure nozzle 409 sprays the drilling fluid at a high speed to disperse the sediment 10 and mix it with the sediment 10 to form a solid-liquid two-phase mixture. Then, by conveying high-pressure gas, it is further mixed with the sediment 10 to form a gas-liquid-solid three-phase mixture. Using the air-lift reverse circulation principle, the gas-liquid-solid three-phase mixture is suctioned and discharged to the outside of the steel pile 5, and the mud flushing and slurry discharging work are carried out synchronously, effectively improving the construction efficiency. Moreover, by accurately controlling the distance between the suction and discharge mud assembly 4 and the mud surface in the steel pile 5 through the hoisting cable 410, it is ensured that the drilling fluid sprayed by the high-pressure nozzle 409 generates the best impact force on the sediment 10, and the sediment 10 can be fully mixed with the drilling fluid, further improving the sediment 10 discharge efficiency inside the steel pile 5.
[0044] It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from several other entities, and do not necessarily require or imply any actual relationship or order between these entities.
[0045] In this article, specific examples are used to elaborate on the principle and implementation mode of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and modifications can be made to the present utility model, and these improvements and modifications also fall within the protection scope of the present utility model.
Claims
1. A mud suction and discharge device applicable to marine facilities, characterized in that, Comprising: A fixed support frame is provided at the upper end of the steel pile, and the fixed support frame is used for installing a working platform; A sludge suction and discharge assembly is provided inside the steel pile, and the sludge suction and discharge assembly includes: A drill pipe, a power head is provided at the first end of the drill pipe, the output end of the power head is connected to a drill bit, and the drill bit is used for loosening sediment; A high-pressure nozzle is provided on the drill bit, and the high-pressure nozzle is used for flushing sediment; A sludge discharge pipe is provided at the first end of the drill pipe, and the sludge discharge pipe is used for sucking sediment; An engineering ship is parked near the steel pile, a cable arranging device is installed on the engineering ship, and the cable arranging device is connected to the sludge suction and discharge assembly through a hoisting cable.
2. The sludge suction and discharge device applicable to marine facilities according to claim 1, wherein A pulley block is provided on the fixed support frame, and the pulley block includes: a first fixed pulley connected to the top surface of the working platform through a first fixing frame; a second fixed pulley connected to the top of the fixed support frame through a second fixing frame; a movable pulley connected to the drill pipe through a pulling rope, and the hoisting cable sequentially passes through the first fixed pulley, the second fixed pulley and the movable pulley and is connected to the second fixing frame.
3. The suction and dredging device applicable to marine facilities according to claim 2, characterized in that, A guiding and supporting member is provided on the outer side wall of the drill pipe, and the guiding and supporting member is slidably connected to the inner side wall of the steel pile.
4. The sludge suction and discharge device applicable to marine facilities according to claim 3, characterized in that, A high-pressure water pump is provided on the top surface of the working platform, and the high-pressure water pump is connected to the high-pressure nozzle through a water injection pipeline.
5. The sludge suction and discharge device applicable to marine facilities according to claim 4, characterized in that, A plurality of air delivery pipes are provided at the first end of the drill pipe, an air compressor is provided on the top surface of the working platform, and the air compressor is connected to the plurality of air delivery pipes through an air injection pipeline.
6. The sludge suction and discharge device applicable to marine facilities according to claim 5, characterized in that, The air delivery pipes are integrally L-shaped, and the air outlet of the air delivery pipe faces the sediment.
7. A mud suction and discharge device applicable to marine facilities according to any one of claims 1-6, characterized in that, A sedimentation tank is provided on the working ship, a reflux pipe is provided inside the sedimentation tank, and the other end of the reflux pipe communicates with the inside of the steel pile.
8. The mud suction and discharge device applicable to marine facilities according to claim 7, characterized in that, An extension pipe is provided at the upper end of the sludge discharge pipe, the extension pipe is fixed on the fixed support frame, and one end of the extension pipe is located above the sedimentation tank.