WO1999004107A1 - Procede et dispositif permettant de transporter de la boue et du limon - Google Patents

Procede et dispositif permettant de transporter de la boue et du limon Download PDF

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Publication number
WO1999004107A1
WO1999004107A1 PCT/US1997/012755 US9712755W WO9904107A1 WO 1999004107 A1 WO1999004107 A1 WO 1999004107A1 US 9712755 W US9712755 W US 9712755W WO 9904107 A1 WO9904107 A1 WO 9904107A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
silt
muck
sand
air
Prior art date
Application number
PCT/US1997/012755
Other languages
English (en)
Inventor
John C. J. Wirth
Original Assignee
Wirth John C J
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wirth John C J filed Critical Wirth John C J
Priority to PCT/US1997/012755 priority Critical patent/WO1999004107A1/fr
Publication of WO1999004107A1 publication Critical patent/WO1999004107A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/8858—Submerged units
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/92—Digging elements, e.g. suction heads
    • E02F3/9243—Passive suction heads with no mechanical cutting means
    • E02F3/925—Passive suction heads with no mechanical cutting means with jets
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F7/00—Equipment for conveying or separating excavated material
    • E02F7/02—Conveying equipment mounted on a dredger
    • E02F7/023—Conveying equipment mounted on a dredger mounted on a floating dredger

Definitions

  • An apparatus and method for ecologically, safely transferring muck and silt from water bottoms that includes the transfer of muck and silt, using a portable, submersible, robotic power head that can transfer plants and living creatures, large and small, that live on or in the water bottom, without damage thereto, and providing porous containers on the water bottom for receiving the silt or muck, which also allows for a continuing supply of nutrients and food to support sea plants, crustaceans, fish, crabs, and sea animals on the outerside of the porous containers.
  • the present invention will better carry out protection and enhancement of subaqueous ecology while allowing silt and muck to be removed safely and ecologically transferable.
  • the present invention utilizes in situ containment tubes and bags made of porous natural or synthetic fiber cloth. These tubes allow the transfer of the muck, and benthos in the muck, to a different location underwater out of harm's way alongside sea plants, mangroves, or seawalls, under a dock or in the form of a subaqueous lagoon or baby fish hatchery or an artificial reef.
  • the present invention also utilizes a muck and silt transfer system that does not destroy living matter in that it does not have any blades or other deleterious transfer devices that would harm the benthos.
  • the system employs a submersible robotic power head which contains no moving parts or cutting edges or vanes to damage living creatures.
  • a method and apparatus employing low kinetic energy for transferring siltation and muck from water bottoms to safely and ecologically transfer muck and its benthos without damage thereto, permitting the growth and reproduction of all creatures, large and small, animals, and plants living on or in the water bottoms by containing silt and muck in porous containers which ultimately may be positioned on the water bottom.
  • the present invention allows for providing a continuous supply of nutrients and food to support the growth on the outside of the porous containers of other sea plants, crustaceans, fish, crabs, and sea animals without the danger of downstream contamination of sea grasses or clam and oyster beds or damage to boat engines, gear drives, and pumps.
  • the apparatus includes using a portable, submersible power head with no cutting blades, impellers, augers, centrifugal rotor, or other moving parts, which engages siltation and muck and transfers it safely without any damage to large and small animals and plants that live on the bottom.
  • the present invention utilizes in situ containment tubes and bags made of porous synthetic fiber cloth. These tubes allow the transfer of the benthos in the muck to a location providing more safety underwater, providing both nutrients and a continuing supply of plant and animal food to support the growth of other forms of life by feeding on the outer surface of the porous containers.
  • a variety of woven, spunweb, and needlepunched fiber cloths are used, depending on engineering and biological considerations, in addition to films, porous films, and membranes to achieve controlled specific gravity of the contents inside the containers.
  • the fibers may be filled with, or coated with, heavy non-toxic minerals or compounds to increase their specific gravity to prevent their floating to the surface.
  • the inside surface may be dusted or coated with flocculents to achieve caking and agglomeration to increase filtering efficiency and assist the dewatering process.
  • Container fabrics may be treated on their outerside with attractants known to be especially hospitable to desirable plant and animal life.
  • the silt and muck transfer system utilizes a portable console that includes an electric motor that can be connected to dockside electricity, an air pump driven by the electric motor, a mud and silt collection head, termed a power head, connected to the output of the air source, and optionally, a hydraulic pump.
  • a portable console that includes an electric motor that can be connected to dockside electricity, an air pump driven by the electric motor, a mud and silt collection head, termed a power head, connected to the output of the air source, and optionally, a hydraulic pump.
  • Alternate systems may employ electric generators.
  • the air blowers and water pumps may be driven directly by an engine, other power source, or a windmill, stationary or mounted on a buoy or other flotation. Further, stationary inboard and outboard engines may be modified to supply compressed air and power water pumps.
  • the power head is positioned on the water bottom and uses air bubbles and the weight of exterior lake or ocean water to force the silt and muck under a turbidity shroud, pushing muck and silt through the discharge hose and optionally into a floating porous container where the silt and other material, living and non-living, is collected.
  • the body of the power head may be heavily weighted, conical, with an inlet chamber and a conduit disposed therethrough that is the discharge conduit for collecting the silt, sand, and muck. Since the power head does not have any moving parts, the system does not hurt any living creatures during muck transfer.
  • the power head may have connected adjacent thereto a plurality of water lines that are connected to the water pump disposed on the pier or dockside so that water jets are strategically aligned around the base of the power head in conjunction with an air supply that is strategically placed in a chamber inside the power head so that the entire action of the water creates a vortex and turbulence at the mouth of the discharge tube in the power head in conjunction with air bubbles to move silt, sand, and muck into the discharge hose where the air bubbles cause the muck to rise in the discharge hose to the surface for collection in a floating porous container or within a disposal area.
  • the container can be placed on the water bottom at a desired location, preferably with a sturdy geotextile mat beneath it, where the container prevents further silt from being disturbed, to line the water bottom to prevent continued turbulence and movement of silt and muck on the bottom.
  • Containers intended for use to safeguard shorelines pounded by strong wave action may be dusted and precoated inside with sand suspension agents such as sodium alginate and a preservative such as sodium nitrate or sodium nitrite. Wave action will churn the mix with the water inside the flexible containers, resulting in the sand particles becoming suspended in a thick thixotropic gel .
  • the sandgel serves as an energy absorber which dissipates the wave energy, causing its sand to deposit in front of the shoreline.
  • Using the present invention allows for continuous inlet depth maintenance, beach renourishment , synthetic structural reefs for enhancing aquatic growth, and for clearing channels without resorting to upland relocation.
  • a channel bottom can be lined with a geotextile mat for the placement thereon of containers filled with silt and muck to enhance aquatic growth while at the same time reducing turbidity, and lowering the level of deep layers of muck on water bottoms to maintain safer navigation depths in channels and berths.
  • Filtering containers after filling and closure, may be transferred to, or enclosed in, a sturdy impermeable plastic film vented to a filter on the surface.
  • a sturdy impermeable plastic film vented to a filter on the surface.
  • Figure 1 shows a side elevational view, partially in cross section, of the power head used in the present invention.
  • Figure 2 shows a side elevational view, partially in cross section, of the leaking inverted cup valve used in the power head shown in Figure 1.
  • Figure 3 shows a cutaway view of a power head diagrammatic drawing for power direction and control with the present invention.
  • Figure 4 shows a control valve used in the present invention.
  • FIG. 5 shows in perspective and in cross section the entire system in accordance with the present invention.
  • Figure 5A shows a side elevational view, partially in perspective, of the operation of the present invention.
  • Figure 6 shows a perspective view of a reef that can be made with the present invention.
  • Figure 7 shows a top view of continuous depth maintenance using the present invention.
  • Figure 8 shows a side elevational view of the operation of the present invention using a wind generator supply.
  • Figures 9A, 9B, 9C, and 9D show a sequential schematic side elevational view of the operation for shoal operations.
  • Figure 10 shows a side elevational view of the present invention as used in a channel.
  • Figure 11 shows a perspective view of a movable flotation platform that includes a collecting trough to collect sand, muck, and silt, the buoyancy of which can be controlled.
  • Figure 1 illustrates the sophistication yet simplicity of the power head, the proper performance of which is based on the number and diameter of its air jets in relation to the outside circumference of the inlet nozzle and the spacing between the bottom of the inlet nozzle and the turbidity shroud.
  • the diameter of the turbidity shroud in relation to the inlet nozzle is also important to the ability of the power head to maintain adequate negative pressure to contain turbidity.
  • air supplied to the air chamber bleeds through the air jets, creating a negative pressure differential inducing a rapid flow of water transferring muck and benthos up the discharge tube into a containment tube which, when filled, is floated to its predesignated position for removal, or lowered to the water bottom.
  • the choice of type and power of the air supply, the diameter of the discharge tube, and the depth of the turbidity shroud determine the rate of solids transfer.
  • Figure 2 illustrates the "leaking inverted cup valve” for raising and lowering the power head. Bleeding air into the inverted cup causes it to rise. Its top is designed as a valve which, when seated, closes off the air chamber which fills with air, causing the power head to rise. Cutting off the air supply to the inverted cup results in continued leaking of air through the dimensioned opening at the top of the cup which quickly allows it to drop, admit water to the air chamber and lower the shroud to the bottom (generally to a different location each time because of the torque of the connecting hose lines) . This up and down “cookie-cutter” action can be achieved manually or automatically without an operator using mechanical means, timers, memory chips, and control valves using available air and water pressure.
  • the depth to which the power head descends and is drawn down into the muck can be limited several ways, including simply attaching a line to a large enough buoy or float.
  • a unique method is to employ a "MuckSled" using an inflatable water tube able to float and support the weight of the power head, causing it to stay at a predetermined desired level in the muck by controlling remotely the volume and weight and therefore, the overall specific gravity of the MuckSled and the power head volume of water and air in the annular tube.
  • Figure 3 discloses the directional control using four water jets sourced by a water pump on the control console. These water jets face about 30 degrees toward the center and 5 degrees down.
  • the horizontal force component of the jets make the power head move smartly in the desired direction using the invention of a directional control valve, Figure 4.
  • closing off three jets will cause the power head to "swim" in the direction opposite to the fourth jet.
  • this valve allows single jet powered operation in four directions, with two jets contributing to direction control for each 90 degree quadrant.
  • Two positions are provided for BACK or REVERSE to obviate the need to turn the valve 180 degrees.
  • Two positions are also provided for the OFF position which diverts the water away from the four jets, as desired.
  • the four water jets create a vortex in the direction of the coriolis force, which increases solids throughput and prevents turbidity by drawing by centripetal supply permits . force the fine solids into a column below the inlet nozzle, and above the main silt column being forced up the discharge tube (by the pressure differential caused by the expanding air bubbles in the discharge tube) .
  • FIGS 5 and 5A show the interaction of the control console, dockside power water intake, tethered air and water line, power head with turbidity shroud, flotation and " SmarTube . "
  • Figure 6 illustrates the use of this system for filling structural artificial reef tubes on the ocean floor, with some at substantial depths.
  • “Reefers” may be filled with inshore muck and benthos, thereby enhancing their usefulness in accelerating the growth of plant and animal life on the artificial reef.
  • “Reefers” may be also filled and compacted with sand from the ocean floor with or without nutrients, attractants and other additives to create an exciting underwater environment.
  • Coral Reefers can incorporate fine copper wires in their construction for the low. voltage electrolytic deposition of calcium carbonate on the surface of the reef tubes. This can also be accomplished by using metal powder filled fibers or metallized fibers.
  • FIG. 7 shows the system adapted for use in inlet maintenance using wind power as an alternative power source and semi-permanent but relocatable channel markers/sand collection stations. The system will operate continuously 24 hours daily whenever the power supply permits. As "SmarTubes" are filled, they are replaced and floated to their destination depending upon the market value of the contents.
  • Figure 8 shows the system in use for both continuous beach renourishment as well as filling energy absorbing "Geltubes, " used for upland capture of ocean sand for beach renourishment.
  • Figures 9A, 9B, 9C, and 9D show an adaptation of this sand transfer invention as a "ShoalSucker" for emergency channel maintenance patrols by pontoon boats and small outboard and inboard sea craft used by the Coast Guard, Coast Guard Auxiliary, and safety patrols.
  • trolling engines may be modified to source air and/or water.
  • the sand transfer heads are normally locked and sealed in the UP or horizontal position and are lowered only in a shoaling emergency and at forward speeds less than 3 mph. Vanes on the power head will cause it to tilt off the bottom at high speed or if an obstruction is encountered.
  • the "ShoalTubes" have limited capacity and include flotation and marker buoys for off-channel stowage when filled. Tow lines are included for quick use when needed to transfer life threatening shoaling in navigation channels and dangerous inlets. Smaller and larger "ShoalTubes" will be available for professional use.
  • the system may use flotation tubes with adjustable buoyancy that are used to collect silt, sand, and mud from a desired water bottom area where the tubes can be floated or transported to another area and submerged.
  • a pair of inflatable tubes which can be quite sizeable in diameter and length, are inflated with air or light density liquid and may include an acrylic or Teflon ® coated netting around it.
  • the inflatable tubes may be connected together with a pair of walking boards for access and are connected by clamps to the net .
  • a geotextile filter cloth trough underneath both of the inflatable tubes is filled with silt, muck, and sand from the power head, while the entire flotation tube floats on the surface by the inflatable tubes and the net sling.
  • the power head is on the bottom of the waterbed collecting silt, muck, and sand, as described herein. Air and water lines at dockside are connected to the power head which is in fluid communication with the discharge hose from the power head.
  • materials from the bottom are transferred into the filtering container having the filter cloth.
  • the entire flotation tube can be floated to a designated area.
  • the trough itself may be made of a geotextile material connected under the inflatable tubes.
  • the final filled trough may be used alone for creating a trough along a seawall, mangroves, or underwater at a desired location.
  • the flotation tube buoyancy can be changed by adding or removing air under pressure from each floating tube which is made of rubber or plastic.
  • the device may be submerged by adding water to each tube.
  • the apparatus described can remove sand, muck, and silt continuously at a fixed depth, being anchored stationary or tethered similar to channel marker buoys in an inlet, channel, lagoon, canal, or berth.
  • the apparatus removes water, fine sand, organic matter, muck, and silt from beneath an eroding area, with the suction head submerged in water collecting some at least 4 ft. below water line at low tide and upward of 10 ft. or more from the shore line at high tide.
  • the apparatus can also be powered for sources of air and water by a windmill directly on shore or by buoys or other flotation devices.
  • the present invention uses increasing specific gravity of the cloth, which filling or coating is fibrous with heavier materials or compounds to prevent the cloth from floating to the surface which might cause damage to birds or fish, or cause littering of beaches.
  • the geotextile container used with the flotation tube may also have thixotropic gels as suspension agents.
  • the addition of sodium nitrate, sodium nitrite, or other anti-fungal, anti- bacterial agents to protect saccharides from degeneration may be added to the geotextile container.
  • the invention may include an engine to provide a source of air and water under pressure which includes a horizontal engine with two shafts with optional clutches, one driving a rotary blower or multi-stage compressor, and the other powering a water pump.
  • a modified engine which allows one or more cylinders to pump air directly in a single shaft or takeoff to power the water pump can be used.
  • the engine may be stationary on a boat or barge or an outboard/inboard engine which also provides propulsion at trolling speed for a skiff with several sand transfer systems for clearing inlets or a platform-style boat having one or more sand transfer systems on board mounted to the boat to maintain safe boating depth.
  • the flotation tube in Figure 11 may also include a tubular, inflatable bladder that contains fresh water, anti-freeze, or other fluid lighter than the ambient water which allows it to float to the surface, and having a remote control valve to control the volume and weight of the tube or bladder and a remote air valve and supply of compressed air to remove water from the tube.
  • the system includes a means for allowing the water- filled rubber tube to support the suction head and control its weight and volume to maintain the depth of the suction head and operate at a desired level in layers of muck.

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

Abstract

Procédé et dispositif économiques qui permettent d'enlever, sans danger du point de vue écologique, du limon, de la vase et du sable du fond de l'eau et de les rassembler, sans détruire le benthos qu'ils contiennent, dans des conteneurs poreux, avec lesquels on peut déposer la boue et le limon d'une manière écologique aux endroits désirés afin d'améliorer les environnements sous-marins. Le dispositif comprend un système permettant de rassembler et de transporter le limon et la boue, qui ne possède aucun élément mobile et qui utilise le déplacement de grandes masses avec une énergie cinétique et une vitesse terminale faibles, ce qui permet de ne pas mettre en danger le benthos ou les récipients poreux durant le transport.
PCT/US1997/012755 1997-07-14 1997-07-14 Procede et dispositif permettant de transporter de la boue et du limon WO1999004107A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US1997/012755 WO1999004107A1 (fr) 1997-07-14 1997-07-14 Procede et dispositif permettant de transporter de la boue et du limon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1997/012755 WO1999004107A1 (fr) 1997-07-14 1997-07-14 Procede et dispositif permettant de transporter de la boue et du limon

Publications (1)

Publication Number Publication Date
WO1999004107A1 true WO1999004107A1 (fr) 1999-01-28

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PCT/US1997/012755 WO1999004107A1 (fr) 1997-07-14 1997-07-14 Procede et dispositif permettant de transporter de la boue et du limon

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1794094A2 (fr) * 2004-08-13 2007-06-13 Thomas Kryzak Appareil, systeme et procede d'assainissement d'une contamination
GB2444174A (en) * 2006-11-24 2008-05-28 Ray Drabble Seabed organic material relocating apparatus to preserve marin life when dredging
WO2008119137A1 (fr) * 2007-04-03 2008-10-09 Taupo Maritime Pty Ltd Récipient de stockage
NL1036324C2 (nl) * 2008-12-17 2010-06-21 Jan Kollen Zandwin(d)molen voor zandverplaatsing.
CN107829455A (zh) * 2017-11-21 2018-03-23 中国电建集团北京勘测设计研究院有限公司 一种种质资源原位保护的清淤装置及其清淤方法
CN108018898A (zh) * 2017-11-14 2018-05-11 中电建水环境治理技术有限公司 河湖及湿地犁式保护性生态清淤方法
CN108517907A (zh) * 2018-04-03 2018-09-11 美丽国土（北京）生态环境工程技术研究院有限公司 河道连续清淤设备
CN113802503A (zh) * 2021-09-29 2021-12-17 关晨 一种市政道路清淤装置
CN117926872A (zh) * 2024-03-21 2024-04-26 昆明水啸科技有限公司 水底淤泥清理装置及清理方法

Citations (4)

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Publication number Priority date Publication date Assignee Title
US3808779A (en) * 1972-02-17 1974-05-07 Sea Harvest Sea harvesting apparatus and method
US4822106A (en) * 1987-12-09 1989-04-18 Wilson Steven M Golf ball dredge
US4854058A (en) * 1987-05-08 1989-08-08 Sloan Pump Company, Inc. Dredging apparatus having a diver-operated hand-held dredge head for quasi-closed loop system
US4889391A (en) * 1989-05-08 1989-12-26 Cornelius Billie G Hand-held suction dredge and metal detector

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3808779A (en) * 1972-02-17 1974-05-07 Sea Harvest Sea harvesting apparatus and method
US4854058A (en) * 1987-05-08 1989-08-08 Sloan Pump Company, Inc. Dredging apparatus having a diver-operated hand-held dredge head for quasi-closed loop system
US4822106A (en) * 1987-12-09 1989-04-18 Wilson Steven M Golf ball dredge
US4889391A (en) * 1989-05-08 1989-12-26 Cornelius Billie G Hand-held suction dredge and metal detector

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9091034B2 (en) 2003-09-03 2015-07-28 Environmental Lunch Box Technology Llc Environmental remediation system
US8337695B2 (en) 2003-09-03 2012-12-25 Environmental Luchbox Technology LLC Environmental remediation system
EP1794094A2 (fr) * 2004-08-13 2007-06-13 Thomas Kryzak Appareil, systeme et procede d'assainissement d'une contamination
EP1794094A4 (fr) * 2004-08-13 2011-11-16 Thomas Kryzak Appareil, systeme et procede d'assainissement d'une contamination
US8940161B2 (en) 2004-08-13 2015-01-27 Air & Earth Llc Apparatus, system, and method for remediation of contamination
GB2444174A (en) * 2006-11-24 2008-05-28 Ray Drabble Seabed organic material relocating apparatus to preserve marin life when dredging
GB2444174B (en) * 2006-11-24 2010-05-26 Ray Drabble Seabed organic material relocating apparatus
WO2008119137A1 (fr) * 2007-04-03 2008-10-09 Taupo Maritime Pty Ltd Récipient de stockage
NL1036324C2 (nl) * 2008-12-17 2010-06-21 Jan Kollen Zandwin(d)molen voor zandverplaatsing.
CN108018898A (zh) * 2017-11-14 2018-05-11 中电建水环境治理技术有限公司 河湖及湿地犁式保护性生态清淤方法
CN107829455A (zh) * 2017-11-21 2018-03-23 中国电建集团北京勘测设计研究院有限公司 一种种质资源原位保护的清淤装置及其清淤方法
CN107829455B (zh) * 2017-11-21 2022-12-06 中国电建集团北京勘测设计研究院有限公司 一种种质资源原位保护的清淤装置及其清淤方法
CN108517907A (zh) * 2018-04-03 2018-09-11 美丽国土（北京）生态环境工程技术研究院有限公司 河道连续清淤设备
CN113802503A (zh) * 2021-09-29 2021-12-17 关晨 一种市政道路清淤装置
CN113802503B (zh) * 2021-09-29 2023-06-02 广州中恒城市规划勘测设计有限公司 一种市政道路清淤装置
CN117926872A (zh) * 2024-03-21 2024-04-26 昆明水啸科技有限公司 水底淤泥清理装置及清理方法
CN117926872B (zh) * 2024-03-21 2024-05-28 昆明水啸科技有限公司 水底淤泥清理装置及清理方法

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