WO2021069154A1 - Dispositif de dragage sous-marin et procédé de dragage de matériau de lit sous l'eau - Google Patents

Dispositif de dragage sous-marin et procédé de dragage de matériau de lit sous l'eau Download PDF

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Publication number
WO2021069154A1
WO2021069154A1 PCT/EP2020/074650 EP2020074650W WO2021069154A1 WO 2021069154 A1 WO2021069154 A1 WO 2021069154A1 EP 2020074650 W EP2020074650 W EP 2020074650W WO 2021069154 A1 WO2021069154 A1 WO 2021069154A1
Authority
WO
WIPO (PCT)
Prior art keywords
removal
underwater
base frame
removal device
soil material
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/EP2020/074650
Other languages
German (de)
English (en)
Inventor
Leonhard Weixler
Stefan Michael Finkenzeller
Jürgen Klippenstein
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bauer Maschinen GmbH
Original Assignee
Bauer Maschinen GmbH
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 Bauer Maschinen GmbH filed Critical Bauer Maschinen GmbH
Publication of WO2021069154A1 publication Critical patent/WO2021069154A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/16—Loosening of soil or rock, under water
    • 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
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E02F3/20—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels with tools that only loosen the material, i.e. mill-type wheels
    • E02F3/205—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels with tools that only loosen the material, i.e. mill-type wheels with a pair of digging wheels, e.g. slotting machines
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C50/00—Obtaining minerals from underwater, not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/48—Washing granular, powdered or lumpy materials; Wet separating by mechanical classifiers
    • B03B5/56—Drum classifiers
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B2017/0056—Platforms with supporting legs
    • E02B2017/0073—Details of sea bottom engaging footing
    • E02B2017/0078—Suction piles, suction cans

Definitions

  • the invention relates to an underwater removal device, in particular for the mining of raw materials, with a base frame which can be settled on a body of water, at least one removal unit which is vertically adjustable and is mounted on the base frame and designed to remove soil material from the body of water at a first removal position is, and at least one transport container which is designed to receive removed soil material and is arranged on the base frame for the removal of removed soil material, according to the preamble of claim 1.
  • the invention relates to a method for removing soil material under water, in particular for the mining of raw materials, with an underwater removal device, in which a base frame of the underwater removal device is set down on a water bed, at least one removal unit which is framed on the base is adjustably mounted, traversed vertically in a first removal position in the Geicas serground and soil material is removed, and removed soil material is conveyed to a transport container on the base frame, in wel chem removed soil material is received for removal, according to the preamble of claim 12.
  • EP 2 562 346 A1 discloses an underwater drilling arrangement with a lowerable work platform. A drilling tool is arranged on the work platform,
  • the drilling jig is used to create foundation elements underwater.
  • the cuttings produced when creating the hole are carried away upwards and carried out via an outlet mouth into the surrounding water, where they are carried away and distributed by the water current.
  • Underwater dismantling systems emerge from WO 2015/178854 A1 and WO 2015/178853 A1.
  • several mobile mining units are used, from which excavated soil material is led to floating containers, which are arranged under water between the mining units and a supply ship.
  • a generic underwater removal device and a generic method emerge from EP 3 330441 B1.
  • a removal unit In a tower-like base frame, a removal unit is mounted so that it can be adjusted vertically, through which soil material can be removed under water and transported into a conveying container. For the degradation of soil material on a larger area, it is necessary in this known device before to adjust it after each vertical removal step. This can be necessary under water, especially at greater depths, with an increased expenditure of time and effort.
  • the invention is based on the object of specifying an underwater removal device and a method for removing soil material, with which it is also possible to efficiently remove larger amounts of soil material from a body of water.
  • the underwater removal device is characterized in that the at least one removal unit on the base frame in a first horizontal Tal direction is guided adjustable to at least a second removal position, wel che is different from the first removal position and in which a further Ab wear soil material can be carried out.
  • a basic idea of the invention can be seen in providing an underwater removal device with a base frame, which can be deposited on a body of water and along which the removal unit is adjustably mounted in a horizontal direction.
  • the underwater removal device can thus be parked at the bottom of a body of water and several vertical removal processes can then be carried out, the removal unit being moved horizontally along the base frame between a single vertical removal process, a so-called stitch.
  • horizontal is to be understood as a transverse direction to the vertical gravitational direction, with an adjustment essentially taking place along a surface of the bottom of the body of water.
  • a preferred embodiment of the invention consists in that a separation device is arranged on the base frame, to which the removed soil material can be conveyed and which is designed to separate raw material-containing constituents and pass them on to the at least one transport container.
  • the separating device which can have a sieve, a decanter, a centrifuge and / or some other separating device, reduces the soil material to be picked up by the transport container. In particular, as far as possible, only constituents containing raw materials should be received by the transport container, while constituents that are free or poor in raw materials are separated out by the separation device.
  • the at least one removal device is preferably connected to the separation device via a flexible line, in particular a hose line.
  • the separating device is arranged above the transport container in a loading station.
  • the transport container can be moved into the loading station, in which it is then located below the separation device.
  • the separated raw Substance-containing constituents can be efficiently conducted from the separating device into the transport container, in particular under the action of gravity. From the separation device can be fixed or adjustable on the base frame.
  • a further advantageous embodiment of the invention can be seen in the fact that a receiving and shifting device for the at least one transport container is provided on the base frame, the receiving and shifting device being designed to receive at least one transport container and to at least one loading station for Picking up removed soil material to move.
  • the base frame can be designed to accommodate several trans port containers at the same time.
  • a corresponding intermediate storage area can be provided on the base frame.
  • a receiving station can be formed on the base frame, in which transport containers from the water surface, in particular a transport ship, can be deposited onto the base frame.
  • the transport container received in this way can be moved via the displacement device to an intermediate storage area or directly to the separation device.
  • the displacement device can have guide rails for the transport container and at least one displacement element, for example an adjusting cylinder or a transport chain with a chain drive.
  • the transport container can be moved on to a return station on the base frame via the displacement device.
  • the transport container can be picked up by the return station, for example by a transport rope, and brought back to the surface of the water by a ship.
  • the receiving station and the return station can be designed separately from one another or at the same location, so that the receiving station simultaneously forms the return station.
  • a compact construction of the underwater removal device can in particular be achieved in that the at least one removal unit is mounted vertically adjustable on a guide frame which is mounted horizontally displaceably on the base frame.
  • the vertically directed guide frame can be attached to a slide, which is mounted horizontally displaceably along a guide on the base frame.
  • several removal units can also be provided on the underwater removal device, which can be adjusted vertically and horizontally independently of one another or can be adjusted together.
  • the at least one removal unit can be adjusted vertically by a linear drive.
  • a particularly compact arrangement is achieved in that the at least one removal unit is suspended from a support cable.
  • the support cable can be guided over a pulley on an upper side of the guide frame.
  • a lowering of the Abtragü can be adjusted solely by the action of gravity or by a further pull rope, which is guided around a lower pulley on a lower area of the guide frame, or an adjusting cylinder in the direction of the ground with force.
  • the support cable and / or the pull cable can be operated via a cable winch by means of a winch motor.
  • an efficient and as large-area removal of soil material as possible can be achieved by arranging a movement device on the base frame with which the underwater removal device can be adjusted on the water bottom.
  • the movement device can in principle be designed as desired, in particular have a walking mechanism.
  • the removal unit can be a drilling device in which a drilling tool is driven to rotate about a preferably vertical drilling axis.
  • a particularly efficient removal of soil material is achieved according to one embodiment of the invention in that at least one removal unit is designed as a milling unit.
  • the milling unit in particular milling teeth are provided which revolve around essentially horizontal milling axes.
  • the milling unit can have milling wheels and / or milling chains.
  • the milling unit comprises a box-shaped frame with at least two pairs of milling wheels, the milling wheels of a pair having a common milling wheel axis and the milling wheel axes of the pairs being parallel and axially offset to one another.
  • the milling units can be designed essentially like conventional trench wall milling machines.
  • the box-shaped frame can in particular be designed as a guide frame, the frame cross section being adapted to a milling cross section which is produced by the milling wheels. With such a box-shaped guide frame, the milling unit can guide itself in the milling slot.
  • the parallel to each other oriented milling wheel axes can be parallel to the horizontal displacement direction on the base frame or transversely to this, in particular at a right angle to it.
  • particularly efficient removal of soil material can be achieved by arranging several milling units next to one another and combining them to form a common support device.
  • several milling units, each with two pairs of milling wheels can be arranged and combined next to one another. The arrangement can take place in the axial direction of the milling wheels or at right angles to the axial direction of the milling wheels.
  • the underwater removal device can be supplied with energy by means of a supply line, a so-called umbilical, from a supply ship.
  • the energy supply can be a pressure fluid, in particular hydraulic fluid, and / or electrical current.
  • at least one electrical power supply unit in particular an accumulator, is arranged on the base frame.
  • the energy supply can comprise an energy conversion unit which, for example, converts electrical energy into hydraulic energy or extracts thermal energy from the environment and transforms it into electrical energy or hydraulic energy.
  • the energy supply unit is what is known as a power pack.
  • the energy supply unit can also have an accumulator with a high energy density. In particular, several energy supply units can be arranged so that an independent energy supply of the underwater removal device is ensured even over several hours of operation.
  • a preferred embodiment of the underwater removal device according to the invention consists in that the underwater removal device consists of at least two modules which can be put together during or after being set down on the water bed.
  • the base frame can also be composed of different modules.
  • the modules can be the individual removal units, the removal device, the guide frame, the transport container or others Be components of the underwater removal device.
  • the modules are provided with quick connection devices so that they can be put together in a relatively simple manner during or after being set down on the water bed.
  • the method according to the invention for removing soil material under water is characterized in that after the removal of soil material in the first removal position, the at least one removal unit is adjusted along a guide on the base frame in a horizontal direction from the first removal position into at least one second removal position, which is different from the first removal position, and that further soil material is removed in the second removal position by moving the at least one removal unit vertically.
  • the method according to the invention can in particular be carried out by an underwater removal device according to the invention, as described above.
  • a preferred embodiment variant of the invention consists in that a first mining slot is created along the first horizontal direction, initially several vertical primary stitches are created which are spaced apart in a defined manner along the first horizontal direction, with at least one remaining soil section remaining between the primary stitches, and that after the creation of the primary stitches in the horizontal direction, each remaining soil section is removed with at least one secondary stitch to form a continuous mining slit in the horizontal direction.
  • continuous mining slots can be created efficiently, ensuring that the same pressure or environmental conditions as possible exist on two opposite sides of the overall box-shaped removal unit, so that the removal unit is sunk as vertically as possible and running is avoided.
  • the at least one removal unit is adjusted by a defined offset amount in a second horizontal direction, which is directed transversely, in particular perpendicular to the first horizontal direction at least one second mining slot roughly parallel to the first th primary mining slot is created.
  • the second dismantling slot can be directly adjacent to the first dismantling slot. Further mining slits can be created next to each other so that the water bed is removed over a large area.
  • the offset amount can be selected so large that a residual soil area remains between two adjacent primary mining slots, and that the remaining soil area between two primary mining slots is then removed with the introduction of a secondary mining slot.
  • the soil is not only removed in the area of a single slit, but a planned areal dismantling of the water floor can take place.
  • two or more primary dismantling slots, each spaced apart from one another and in particular parallel, are created, as described above.
  • the distance between two primary excavation slots is designed in particular so that the remaining floor area between them has a wall thickness in the horizontal direction which corresponds to the excavation width of an excavation unit. The remaining soil area can thus be completely removed through a secondary mining slot with the removal units, which means a good yield of removed soil material.
  • removed soil material is conveyed to a separation device, that components containing raw materials are separated from constituents that are poor in raw materials in the separation device and conveyed to the at least one transport container, and that the constituents low in raw materials are transferred from the separation device to a To be returned to the bottom area of the water bed.
  • the constituents that are poor in raw materials are preferably returned to the excavated slots so that they are at least partially filled again. This protects the bottom of the water and reduces the amount of soil material to be transported to an area above water.
  • the underwater removal device can be set down as a complete system on the bottom of the water.
  • a simplification of the transport is achieved according to a further development of the invention in that an underwater Abtragsvor device is composed of at least two modules which are connected to one another during or after the modules have been lowered onto the water bed.
  • the invention is described below using preferred exemplary embodiments, which are shown schematically in the drawings. In the
  • FIG. 1 shows a perspective view of a first underwater removal device according to the invention
  • FIG. 2 is a front view of the underwater removal device of FIG. 1;
  • FIGS. 1 and 3 shows a side view of the underwater removal device of FIGS. 1 and
  • Fig. 4 is a plan view of the underwater removal device according to Fi gures 1 to 3;
  • FIGS. 1 to 4 shows a perspective view of the removal units of the underwater removal device according to FIGS. 1 to 4;
  • Fig. 6 is a front view of the removal units of Fig. 5;
  • FIGS. 5 and 6 show a side view of the removal units according to FIGS. 5 and 6;
  • FIG. 8 is an enlarged perspective illustration of the transport container from FIG.
  • FIGS. 1 to 4 shows an enlarged perspective illustration of a separation device of the underwater removal device according to FIGS. 1 to 4;
  • FIG. 10 shows a side view of the separating device according to FIG. 9 with the bottom flap open;
  • FIG. 11 shows a side view of the separating device according to FIG. 9 with the bottom flap closed;
  • FIGS. 12-19 plan views of an underwater removal device according to FIGS. 1 to 4 in a reduced representation in various process steps during the removal of soil;
  • FIG. 20 shows a perspective view of a further embodiment of an underwater removal device according to the invention
  • FIG. 21 is a plan view of the underwater removal device of FIG. 20.
  • Figs. 22-29 plan views of the underwater removal device according to Figures 20 and 21 in a reduced representation in different process steps when removing soil.
  • the base frame 12 has a horizontal floor section 14 and two wall sections 16 attached to it and spaced apart from one another.
  • a receiving space 18 for box-shaped transport containers 14 is provided between the spaced wall sections 16.
  • vertically extendable support feet 15 are provided on the underside of the base frame 12.
  • the support feet 15 can be provided with cutting teeth, the support feet 15 being rotatably driven and introduced into the bottom of the body of water.
  • the energy supply units 70 are detachably attached to the wall section 16 on the right-hand side in FIG. 1.
  • the energy supply units 70 can in particular be designed as so-called power packs, d. H.
  • Energy conversion units e.g. B. as electro-hydraulic units, which via an umbilical cord, a so-called umbilical, from a supply ship, not shown, convert electrical energy supplied from the water surface into hydraulic cal energy.
  • they can also be designed as accumulators, which are used to store z. B. electrical energy are alsobil det.
  • the underwater removal device 10 according to the invention can work largely independently of a supply ship after it has been set down on the water bed. After completion of the work, the underwater Abtragsvor device 10 can be lifted again in a basically known manner.
  • a linear guide 19 is arranged on the wall section 16 on the left-hand side in FIG. 1, along which a guide frame 20 is guided along the outside of the wall section 16 in a horizontally adjustable manner.
  • the guide frame 20 has a vertical guide wall 21 which interacts with the guide 19 on the base frame 12 for the horizontal method.
  • a framework-like guide box 22 At the guide wall 21 is a framework-like guide box 22 in which a block-like removal device 38 is received, which is composed of several removal units 30 in the illustrated embodiment.
  • a yoke-like mast assembly 23 with a mast head 24 is provided on the guide frame 20.
  • pulleys 25 for supply hoses 26 and conveyor hoses 29 to the three removal units 30 of the removal device 38 are rotatably mounted.
  • the block-like removal device 38 is vertically adjustable via a suspension 39 and a support rope 28 on the mast head 24, the block-like removal device 38 being guided vertically and linearly in the guide box 22 of the guide frame 20.
  • the supply hoses 26 are designed for the supply of hydraulic and / or electrical energy, while the delivery hoses 29 are designed for pumping and conveying away the removed soil material.
  • the conveying hoses 29 are guided over a bulkhead plate 27 on which they are combined in a conveying line 52 on the base frame 12, through which the removed soil material is conveyed to a separating device 50.
  • the Abborgeeinrich device 50 is releasably in a fold 17 on the top of the base frame 12 is set.
  • the separation device 50 is arranged approximately in a central region of the base frame 12 above the receiving space 18.
  • Flier pen a Bela destation 48 is formed, in which raw material-containing components of the ablated floor material can be delivered from the separator 50 down to a transport container 40 arranged below.
  • the raw material-containing constituents of the removed soil material are separated from constituents that are low in or free of raw materials in the separating device 50, which may have a centrifuge, for example. These raw material-poor or raw-material-free constituents can be fed back from the separating device 50 via return lines 51 back into a bottom area of the water bed.
  • a total of three transport containers 40 are arranged on the base frame 12.
  • the horizontal floor section 14 protrudes from the wall sections 16 at least on one end face, so that new transport containers 40 from a supply ship are deposited on the underwater removal device 10 at this receiving station 47 can be.
  • the transport container 40 is then pushed on from the receiving station 47 via a receiving and moving device (not shown in detail) to the loading station 48 below the separating device 50.
  • filled transport containers 40 can be conveyed on from the loading station 48 along the receiving space 18 to a return station 49 (FIG. 4) on the base section 14.
  • the return station 49 is in the illustrated embodiment of the receiving station 47 on the base frame 12 opposite. From the return station 49, the filled transport container 40 can be grasped by a basically known crane device and fetched back to a supply ship.
  • the removal device 38 is made up of three removal units 30 each of the same design.
  • Each support unit 30 is designed as a milling unit which has a box-shaped frame 32.
  • milling plates 35 are arranged in the center, on each of which a milling wheel 34 with a common milling wheel axis are rotatably mounted on both sides.
  • two pairs of milling wheels 34 are mounted so as to be driven in rotation.
  • the two pairs of milling wheels 34 produce a rectangular milling cross section through each removal unit 30, which corresponds to the cross section of the box-shaped frame 32.
  • the removal unit 30 can guide itself in the milled slot.
  • the removal device 38 In the case of the removal device 38, three removal units 30 are arranged next to one another in the direction of the cutting wheel axes, so that the respective front cutting wheel pairs and the respective rear cutting wheel pairs are aligned coaxially to one another.
  • the individual frames 32 form an overall frame of the removal device 38, the overall cross-section of which corresponds to an opening cross-section of the box-shaped guide frame 20 on the base frame 12.
  • the guide frame 20 can serve as an initial guide for initially guiding the removal device 38 at the beginning of a milling step.
  • the ablation units 30 directly adjacent to one another jointly mill off an ablation cross section which corresponds to the cross section of the overall frame of the ablation device 38.
  • a bracket-like suspension 39 is formed from support plates, whereby the removal device 38 as a whole can be detachably attached to the support cable 28 of the underwater removal device 10 by means of the suspension 39.
  • FIG. 4 An exemplary embodiment of a transport container 40 for the underwater removal device 10 according to the invention is shown in greater detail in FIG.
  • the transport container 40 has a box-shaped base body 42 which, on its top side, has an insertion funnel 43 that opens upwards approximately in the center.
  • insertion funnel 43 At the Eckberei chen on the top of the base body 42 loop-like connecting elements 44 are attached.
  • the connecting elements 44 are used to connect to a hoist, in particular hooks of a crane rope, so that the transport container 40 can be lowered with the hoist from a supply ship, for example, and can be raised again after filling.
  • an exemplary embodiment of the separating device 50 is shown, which has a housing 54 with a cylinder section 55 and a conical section 56.
  • a radially projecting attachment ring 57 is formed between the upper cylinder portion 55 and the lower cone portion 56, with which the separating device 50 can be releasably placed on the frame-like holder 17 on the base frame 12 from above.
  • An outlet opening 58 is provided on the underside of the conical section 56. This can be opened by means of a hinged bottom 59 (FIG. 10) and closed (FIG. 11).
  • a hinged bottom 59 (FIG. 10) and closed (FIG. 11).
  • a suitable separating device is provided within the separating device 50, with which, for example, raw material components of the removed soil material can be separated from waste material.
  • the underwater removal device 10 is deposited on a body of water 1, wel cher can in particular be a sea bed at a depth of up to a few thousand meters.
  • the underwater removal device 10 has a movement device 60 with two parallel rails 62 on the water bed 1.
  • the movement device 60 can comprise a drive unit, not shown in detail, with which the base frame 12 can be moved linearly along the rails 62.
  • the first transport container 40 After the first transport container 40 has been filled, it is pushed further from the loading station 48 into the return station 49 according to FIG. 13, the second transport container 40 being moved into the loading station 48 at the same time.
  • first primary stitch 3 After creating a first primary stitch 3, the removal device 38 is pushed with the guide frame 20 along the base frame 12 in a horizontal first direction by a defined offset amount, then a second primary stitch 3 is created.
  • a second primary stitch 3 At the bottom of each primary slot 3, two semi-cylindrical grooves are formed on the basis of the opposing pairs of milling wheels, between which a ridge 8, indicated only schematically, is formed.
  • the first and second primary stitches 3 are arranged parallel and spaced apart from one another, so that a residual bottom section 4 remains between the adjacent primary stitches 3.
  • the filled transport container 40 can be lifted in the return station 49 and fetched back to a supply ship.
  • the removal device 38 is moved back again along the base frame 12 according to FIG the second primary stitch 3 to be removed with a secondary stitch 5.
  • the remaining floor sections 4 between the primary stitches 3 can be removed by secondary stitches 5, so that the continuous first dismantling slot 2 is created, which is shown in FIG. 17.
  • a channel-shaped contouring of the base of the first mining slot 2 with intervening ridges or webs 8 results.
  • transport containers 40 are further filled and forwarded to the return station 49 to the removal port.
  • empty trans port containers 40 can be fed to the receiving station 47 so that they are available for loading.
  • filled transport containers 40 can also be transported away at the receiving station 47, while at the same time empty transport containers 40 can also be placed at the return station 49 for filling.
  • the base frame 12 After completion of the first mining slot 2, which runs parallel to the rectangular Ba sisrahmen 12 in the first direction, the base frame 12 is along the rails 62 with the movement device 60 approximately at right angles to the first mining slot 2 in a horizontal second direction around the removal width of the Abtrag owned direction 38 to create a second mining slot 6 parallel and immediately adjacent to the first mining slot 2.
  • the structure of this underwater removal device 10 corresponds to the underwater removal device 10 according to Fi gures 1 to 4 with a few exceptions, which will be discussed.
  • the structure of the base frame 12, the guide frame 20, the removal units 30, the transport container 40, the separation device 50, the movement device 60 and the power supply unit 70 are largely the same as in the first embodiment.
  • the removal device 38 which is also made up of three removal units 30, is directed along the guide 19 of the base frame 12.
  • the axes of the milling wheels of the removal units 30 are parallel to the horizontal first direction, that is to say the direction of displacement of the guide frame 20 along the base frame 12.
  • the separating device 50 is arranged in a fold 17 which is itself mounted so as to be displaceable along the base frame 12.
  • a fold 17 which is itself mounted so as to be displaceable along the base frame 12.
  • corresponding rails on the top of the base frame 12 for the folding 17 can be seen easily.
  • the underwater removal device 10 is also set on a water bed 1 from.
  • the underwater removal device 10 has a movement device 60 with two parallel rails 62 on the water bed 1.
  • the separating device 50 In the initial state according to FIG. 22, three transport containers 40 are arranged on the base frame 12, the separating device 50 being on a fold 17 is located, which is mounted displaceably along the base frame 12. In the starting state according to FIG. 22, the separating device 50 is located together with the guide frame 20 with the removal device 38 with the three removal units 30 in a lateral starting position. The separation device 50 is located above a first transport container 40 on a side area of the base frame 12.
  • the transport container 40 is designed, in particular, to receive the removal material or at least the valuable material-containing part of the removal material of a first primary stitch 3.
  • the removal device 38 with the guide frame 20 is pushed along the base frame 12 in a first horizontal direction by a defined offset amount which corresponds to the length of the first primary stitch 3, as shown in FIG.
  • the separating device 50 with the holding frame 17 along the Basisrah mens 12 over the next, middle transport container 40 is moved with the guide frame 20.
  • a second primary stitch 3 is carried out, while the ablated floor material is transported on to the adjusted separation device 50 via the conveying line 52.
  • the first transport container 40 can now be returned from its original position directly to a supply ship via a hoist.
  • the guide frame 20 with the removal device 38 and the separation device 50 with the holder 17 are then shifted by a further conveying step along the base frame 12 to a third removal position, which is clearly shown in FIG. 24.
  • the separation device 50 is located above the third transport container 40 on a side area of the base frame 12, which opposite the initial page area. While the third primary stitch 3 is being carried out to create the first mining slot 2, the second filled transport container 40 can also be lifted directly by a hoist from its central position on the base frame 12 up to a supply ship. Due to the milling wheel geometries, a web 8 extends centrally along the base of the primary stitch 3.
  • the guide frame 20 with the removal device 38 is returned to the starting position.
  • the base frame 12 is moved along the rails 62 with the movement device 60 in a second direction, which is directed transversely to the longitudinal direction of the mining slot 2, by an offset amount which corresponds to the width of the first mining slot 2.
  • the guide frame 20 with the removal device 38 including the separation device 50 with the holder 17 can then be reset again, with the base frame 12 also being moved along the rails 62 by a further offset amount, such as is clearly shown in FIG. 28.
  • a third mining slot 7 can then be carried out by a further sequence of the known method steps, as can be seen from FIG. 29.
  • the underwater removal device 10 can be moved to the bottom 1 in order to remove a further soil area on the bottom 1 by repeating the steps described above.

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  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Underground Or Underwater Handling Of Building Materials (AREA)

Abstract

L'invention concerne un dispositif de dragage sous-marin comportant un cadre de base, qui peut être placé sur le lit d'une masse d'eau, au moins une unité de dragage, qui est soutenue de manière à pouvoir se déplacer verticalement sur le cadre de base et qui est conçue pour draguer un matériau de lit à partir du lit d'une masse d'eau au niveau d'une première position de retrait et au moins un récipient de transport, qui est conçu pour recevoir le matériau de lit dragué et qui est disposé sur le cadre de base pour transporter le matériau de lit dragué. Selon l'invention, la ou les unités de dragage sont guidées sur le cadre de base dans une première direction horizontale vers au moins une seconde position de dragage, qui diffère de la première position de dragage, et dans laquelle un autre dragage de matériau de lit peut être effectué. L'invention concerne également un procédé de dragage de matériau de lit au moyen du dispositif de dragage sous-marin.
PCT/EP2020/074650 2019-10-08 2020-09-03 Dispositif de dragage sous-marin et procédé de dragage de matériau de lit sous l'eau Ceased WO2021069154A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP19201977.6 2019-10-08
EP19201977.6A EP3805465A1 (fr) 2019-10-08 2019-10-08 Dispositif d'enlèvement sous l'eau et procédé d'enlèvement du matériau du sol sous l'eau

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WO2021069154A1 true WO2021069154A1 (fr) 2021-04-15

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WO (1) WO2021069154A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4223940B1 (fr) 2022-02-02 2025-05-21 BAUER Maschinen GmbH Agencement et procédé d'excavation des ressources du sol à partir d'un fond de l'eau
EP4357586B1 (fr) 2022-10-19 2026-03-04 BAUER Maschinen GmbH Procédé et dispositif de fraisage pour enlever une couche de sol

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2562346A1 (fr) 2011-08-23 2013-02-27 BAUER Maschinen GmbH Agencement de forage sous-marin et procédé d'exécution d'un forage
US20130306524A1 (en) * 2012-05-21 2013-11-21 Michael Dudley Welch Underwater gold processing machine
DE102014002968A1 (de) * 2014-03-06 2015-09-10 Herrenknecht Ag Bohrvorrichtung zum Erstellen einer Bohrung und System zum Positionieren der Bohrvorrichtung
WO2015178854A1 (fr) 2014-05-19 2015-11-26 Nautilus Minerals Singapore Pte Ltd Système d'exploitation minière de fond marin découplé
WO2015178853A1 (fr) 2014-05-19 2015-11-26 Nautilus Minerals Singapore Pte Ltd Système d'extraction à partir des fonds marins
EP3330441A1 (fr) * 2016-12-02 2018-06-06 BAUER Maschinen GmbH Dispositif de réduction d'eau d'aval et procédé de réduction
CN109139016A (zh) * 2018-09-18 2019-01-04 长沙矿冶研究院有限责任公司 一种海底集矿作业车

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2562346A1 (fr) 2011-08-23 2013-02-27 BAUER Maschinen GmbH Agencement de forage sous-marin et procédé d'exécution d'un forage
US20130306524A1 (en) * 2012-05-21 2013-11-21 Michael Dudley Welch Underwater gold processing machine
DE102014002968A1 (de) * 2014-03-06 2015-09-10 Herrenknecht Ag Bohrvorrichtung zum Erstellen einer Bohrung und System zum Positionieren der Bohrvorrichtung
WO2015178854A1 (fr) 2014-05-19 2015-11-26 Nautilus Minerals Singapore Pte Ltd Système d'exploitation minière de fond marin découplé
WO2015178853A1 (fr) 2014-05-19 2015-11-26 Nautilus Minerals Singapore Pte Ltd Système d'extraction à partir des fonds marins
EP3330441A1 (fr) * 2016-12-02 2018-06-06 BAUER Maschinen GmbH Dispositif de réduction d'eau d'aval et procédé de réduction
EP3330441B1 (fr) 2016-12-02 2019-03-20 BAUER Maschinen GmbH Dispositif de réduction d'eau d'aval et procédé de réduction
CN109139016A (zh) * 2018-09-18 2019-01-04 长沙矿冶研究院有限责任公司 一种海底集矿作业车

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