EP2639359B1 - Équipement de dragage et procédé pour draguer ou explorer avec un tel équipement - Google Patents

Équipement de dragage et procédé pour draguer ou explorer avec un tel équipement Download PDF

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Publication number
EP2639359B1
EP2639359B1 EP12001800.7A EP12001800A EP2639359B1 EP 2639359 B1 EP2639359 B1 EP 2639359B1 EP 12001800 A EP12001800 A EP 12001800A EP 2639359 B1 EP2639359 B1 EP 2639359B1
Authority
EP
European Patent Office
Prior art keywords
pumping line
vessel
side part
pumping
wire
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.)
Active
Application number
EP12001800.7A
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German (de)
English (en)
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EP2639359A1 (fr
Inventor
Willy Oscar Blomme
Jan Etienne Diane Fordeyn
Bernard Malherbe
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.)
Jan De Nul Nv
Original Assignee
Jan De Nul Nv
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
Priority to PL12001800T priority Critical patent/PL2639359T3/pl
Application filed by Jan De Nul Nv filed Critical Jan De Nul Nv
Priority to ES12001800.7T priority patent/ES2615519T3/es
Priority to LTEP12001800.7T priority patent/LT2639359T/lt
Priority to EP12001800.7A priority patent/EP2639359B1/fr
Priority to SI201230905A priority patent/SI2639359T1/sl
Priority to HUE12001800A priority patent/HUE032059T2/en
Priority to RS20170073A priority patent/RS55623B1/sr
Publication of EP2639359A1 publication Critical patent/EP2639359A1/fr
Application granted granted Critical
Publication of EP2639359B1 publication Critical patent/EP2639359B1/fr
Priority to HRP20170063TT priority patent/HRP20170063T1/hr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/905—Manipulating or supporting suction pipes or ladders; Mechanical supports or floaters therefor; pipe joints for suction pipes
    • 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
    • E02F3/8833—Floating installations
    • E02F3/8841—Floating installations wherein at least a part of the soil-shifting equipment is mounted on a ladder or boom
    • 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
    • E02F3/8833—Floating installations
    • E02F3/885—Floating installations self propelled, e.g. ship
    • 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
    • E02F3/902—Component parts, e.g. arrangement or adaptation of pumps for modifying the concentration of the dredged material, e.g. relief valves preventing the clogging of the suction pipe
    • 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
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C50/00—Obtaining minerals from underwater, not otherwise provided for

Definitions

  • Dredging equipment and method for dredging or mining with such equipment are Dredging equipment and method for dredging or mining with such equipment.
  • the present invention relates to dredging equipment.
  • the invention relates to dredging equipment of a type which comprises at least:
  • the invention relates to such dredging equipment according to the preamble of claim 1.
  • the vessel for the dredging equipment can be of a type wherein the dredged material is loaded in its own hopper, but also barges for discharging the dredged material can be used.
  • This search is triggered by the growing upland scarcity in sand, mine-materials, etc...
  • the aim is to keep the existing ship's infrastructure, like heave-compensators, gantries, winches, upper sections of the suction-tube and pump-installations.
  • the present invention relates to dredging equipment in accordance with claim 1.
  • a big advantage of dredging equipment in accordance with the present invention is that seabed material can be dredged at much greater depths by a rather small modification of existing dredger equipment, without having to completely modify the existing dredger equipment.
  • the modification mainly consists in adding a pumping line extension part for forming an articulated pumping line in the described manner which can be folded and unfolded between a reduced and extended status, and providing one or more additional suspension-wire systems on an existing dredger of the concerned type.
  • the articulated pumping line can be easily stored on the vessel and deployed for being used below the water-level, resulting in a highly efficient dredging method.
  • the characteristic that the articulated pumping line can be unfolded into an extended status for dredging or mining at a great depth and can be folded back into a reduced status for storing on the vessel is very interesting to save a lot of space.
  • Another advantage of the articulated type of pumping line is that its dynamic behavior is still quite rigid and therefore still easy to control, as contrary to the dynamic behavior of pumping lines of the flexible type.
  • the afore-mentioned articulated pumping line comprises a pumping line vessel-side part and a pumping line extension part connected to one another in a rotatable manner at a first of their extremities by means of a first articulation, the pumping line vessel-side part being provided at its second extremity with said trunnion slide connection of the pumping means with the vessel and being suspended with respect to the vessel at least partly by means of the wire or wires of a pumping line vessel-side part suspension-wire system, and the pumping line extension part having at its second extremity a free end forming the suction tube inlet and being suspended at least partly to the vessel by means of the wire or wires of a pumping line extension part suspension-wire system.
  • the pumping line vessel-side part suspension-wire system could be a suspension wire system of an existing dredger, whereas only a pumping line extension part suspension-wire system for controlling the movement of an added pumping line extension part has to be added for substantially augmenting the dredging depth.
  • the pumping line vessel-side part has preferably a length which approximately corresponds to the length between the position of the trunnion slide connection of the pumping means with the vessel and the stern of the vessel.
  • one or more sections of the pumping line extension part are positioned parallel and near to one or more sections of the pumping line vessel-side part, so that the length of the total length of the pumping line stored on the vessel is much bigger than with pumping lines which cannot be folded into a reduced status.
  • all the articulations provided between pumping line vessel-side part sections are cardan couplings, allowing a limited rotation of the different pumping line vessel-side part sections with respect to one another.
  • An advantage of such an embodiment of dredging equipment in accordance with the invention is that the different sections of the pumping line vessel-side part can be kept rather easily in line, for forming a straight pumping line part, while still allowing some misalignments by means of cardan couplings, so that no extreme bending forces on the pumping line vessel-side part are introduced.
  • the first articulation between the pumping line vessel-side part and the pumping line extension part is a swivel coupling, allowing a rotation over 360° of the concerned parts with respect to one another.
  • An advantage of this embodiments of dredging equipment according to the invention is of course that the articulated pumping line can be easily brought into a reduced status for storing the dredging equipment on the vessel by rotating the pumping line extension part against the pumping line vessel-side part over the swivel.
  • such dredging equipment can also be easily deployed by rotating the pumping line extension part in the opposite sense into a distant position with respect to the pumping line vessel-side part.
  • wire or wires of the pumping line extension part suspension-wire system is or are preferably linked with one end to the suction tube inlet and is or are preferably partly wound at a second end on a winch on the deck of the vessel, while the concerned wire or wires passes or pass from the winch over a gantry on the deck and further over a roller cage which is fixed to the pumping line vessel-side part.
  • An advantage of this embodiment of dredging equipment in accordance with the invention is that by winding the wire or wires of the pumping line extension part suspension-wire system a pulling force can be created between the suction tube inlet on the pumping line extension part and the roller cage on the pumping line vessel-side part, so that both concerned pumping line parts are pulled towards one another and are rotated towards one another so that the pumping line is easily brought into the reduced status.
  • the present invention also relates to a method for dredging or mining with dredging equipment in accordance to the invention as described above, the method comprising at least the steps according to claim 27.
  • Such a method for dredging or mining according to the invention is very advantageous, since a good balance is obtained between the storage space needed on the vessel for storing the pumping means and a structure of the pumping line which is rather rigid but having an easily controllable dynamic behavior when in use, certainly when compared to dredging equipment having a pumping line which consists of a flexible tube.
  • the embodiment of dredging equipment 1 according to the present invention represented in figures 1 to 5 comprises first of all a vessel 2 with a hull 3, having a bow or foremost part 4 and a stern or aft-most part 5, as well as a deck 6.
  • the dredging equipment 1 also comprises pumping means 7 which comprises a pumping line 8.
  • This pumping line 8 is composed of a suction tube 9, a submergible pump 10 and a discharge tube 11.
  • the inlet 12 of the submergible pump 10 is connected to a first extremity 13 of the suction tube 9 and the outlet 14 of the submergible pump 10 which is connected to a first extremity 15 of the discharge tube 11.
  • the second extremity 16 of the suction tube 9 is a free end which forms a suction tube inlet 17 for sucking a mixture of water and loosened seabed material 18.
  • the pumping line 8 is connected to the vessel 2 by means of a a trunnion slide connection 20.
  • This trunnion slide connection 20 is such that the pumping line 8 can be moved between an onboard position, as is represented in figure 1 , for storing the pumping line 8 on board of the vessel 2, and a submerged position outboard the vessel 2 and beneath the water level 21 for use of the pumping line 8, as is represented in the subsequent figures 2 to 5 .
  • the trunnion slide connection 20 is represented in more detail in figure 6 .
  • an elongated trunnion slide guide 22 is provided along a sidewall 23 of the hull 3 of the vessel 2 which extends in a vertical direction AA' from the bottom 24 of the hull 3 to a position above the deck 6 of the vessel 2. Furthermore, the trunnion slide connection 20 is such that, on the one hand, the second extremity 19 of the discharge tube 11 can rotate in the slide guide 23 around an axis which is perpendicular to the concerned sidewall 23.
  • the second extremity 19 of the discharge tube 11 can move upwards and downwards in the slide guide 22 along the concerned sidewall 23 of the hull 3 in the vertical direction AA' between a downward position, represented in figure 2 , for connection to a discharge pipe mounted inside the hull 3, which discharge pipe is not visible in the figures, and an upward position in the vicinity of the deck level 6 of the vessel 2, represented in figure 1 .
  • the pumping means 7 further comprise a water-jet pipe 25 mounted along the pumping line 8, as is more visibly represented in the enlarged views of figures 7 to 10 .
  • This water-jet pipe 25 provides water to nozzles 26 arranged around the suction tube inlet 17 for loosening the seabed material 18, as can be seen in figure 10 .
  • the nozzles 26 are orientated such that water provided by the water-jet pipe 25 is projected in a sense away from the suction tube inlet 17, in a direction which is somewhat diverging from the axial direction BB' of the suction tube 9 at the suction tube inlet 17 extremity.
  • the dredging equipment 1 is also provided with several suspension-wire systems on the vessel 2 each with hoisting means for winding and unwinding one or more wires which are linked to the pumping means, the particular details of which in the represented case will be given somewhat further.
  • the pumping line 8 is an articulated pumping line 8 comprising two or more pumping line sections, adjacent pumping line sections being connected to one another in a rotatable manner by means of an articulation.
  • the articulated pumping line 8 comprises a pumping line vessel-side part 27 and a pumping line extension part 28 connected to one another in a rotatable manner at a first of their extremities, respectively first extremity 29 and first extremity 30, by means of a first articulation 31.
  • the pumping line vessel-side part 27 is provided at its second extremity, which is also the second extremity 19 of the discharge tube 11, with the trunnion slide connection 20 by which the pumping line 8 is connected to the vessel 2.
  • the pumping line extension part 28 has at its second extremity, which is also the second extremity 16 of the suction tube 9, a free end forming the suction tube inlet 17.
  • the pumping line vessel-side part 27 will have a length L which corresponds approximately to the length M between the position of the trunnion slide connection 20 of the pumping means 7 with the vessel 2 and the stern 5 of the vessel 2.
  • This length M is more or less the length on board of the vessel 2 which is available for storing parts of the pumping line 8.
  • the pumping line vessel-side part 27 also corresponds to that part of the pumping line 8 which is forming a pumping line in the known types of dredging equipment.
  • the pumping line extension part 28 on the other hand has a length N and corresponds to a part of the pumping line which would be typically not be available in a known dredger.
  • this pumping line extension part 28 could be positioned exactly vertical when the pumping line 8 is in use, which is only approximately true as is represented in figure 5 , the depth F by which the maximum dredging depth E obtainable with the known types of dredging equipment of a similar type is increased corresponds to the length N of the pumping line extension part 28.
  • the pumping line extension part 28 consists in the embodiment represented in the figures of a single rigid suction tube section 28 without any further articulation, apart from the first articulation 31.
  • the pumping line extension part 28 can be composed of more than one pumping line extension part section as well, adjacent pumping line extension part sections being connected to one another in a rotatable manner by means of an articulation.
  • the pumping line vessel-side part 27 is on the contrary composed of multiple pumping line vessel-side part sections, adjacent pumping line vessel-side part sections being connected to one another in a rotatable manner by an articulation.
  • the pumping line vessel-side part 27 consists of three pumping line vessel-side part sections 32 to 34.
  • a first pumping line vessel-side part section 32 will be indicated hereafter as the top pumping line vessel-side part section 32 and is connected in a rotatable and movable manner with an extremity, which is also the second extremity 19 of the discharge tube 11 or the pumping line vessel-side part 27, to the vessel 2 by means of the trunnion slide connection 20.
  • the submergible pump 10 as well as the complete discharge tube 11 are in this case included in this top pumping line vessel-side part section 32.
  • a second pumping line vessel-side part section 33 will be indicated hereafter as the bottom pumping line vessel-side part section 33 and is connected in a rotatable manner at an extremity, which is also the first extremity 29 of the pumping line vessel-side part 27, by means of the first articulation 31 to the pumping line extension part 28.
  • the third line vessel-side part section 34 will be indicated hereafter as the intermediate pumping line vessel-side part section 34 mounted in a rotatable manner, on the one hand, at its first extremity 35 to the bottom pumping line vessel-side part section 33 by means of a second articulation 36, and on the other hand, at its second extremity 37 to the top pumping line vessel-side part section 32 by means of a third articulation 38.
  • a pumping line vessel-side part 27 which consist of only one single rigid pumping line vessel-side part section having no further articulations or which is composed of another number of pumping line vessel-side part sections 27.
  • the articulations of the pumping line 8 can be of any type.
  • such an articulation can be formed by a cardan coupling, allowing a limited rotation of the adjacent pumping line sections.
  • an articulation of the pumping line can also be formed by a swivel coupling for example, allowing a rotation over 360° of the adjacent pumping line sections.
  • the articulation 31 between the pumping line vessel-side part 27 and the pumping line extension part 28, i.e. the first articulation 31, is such a swivel coupling, represented in more detail in figure 9 .
  • this articulation 31 could be of another type as well.
  • the characteristic that the pumping line extension part 28 and the pumping line vessel-side part 27 can rotate over a full circle, whereas adjacent pumping line vessel-side part sections 32 to 43 can only rotate over a limited angle with respect to one another is interesting in that the pumping line vessel-side part 27 can be easily kept more or less in a straight line while the pumping line extension part 28 and the pumping line vessel-side part 27 can be easily folded in a reduced status, as represented in figures 1 and 2 , or on the contrary, be unfolded into an extended status, as is for example the case in figure 5 .
  • this is another important aspect of dredging equipment 1 in accordance to the present invention and can also be considered as a kind of definition of what is meant by the pumping line vessel-side part 27, i.e. the part that is directly connected to the vessel 2 and is stored as a straight part of the pumping line 8 on the vessel 2 regardless of the fact whether it consists of multiple pumping line vessel-side part sections 32 to 34 or not.
  • the pumping line extension part 28 can be defined as an additional part of the pumping line 8 which is stored on board of the vessel 2 in parallel and near to the pumping line vessel-side part 27, regardless of the fact whether or not it consists of multiple pumping line extension part sections, or whether or not such multiple pumping line extension part sections would be stored as a straight pumping line part or as multiple straight pumping line parts stored in parallel and near to one another.
  • the water jet pipe 25 is of course at each articulation 31, 36 and 38, provided with similar means for allowing a rotation between different sections of the water-jet pipe 25.
  • the pumping line vessel-side part 27 is at least partly suspended with respect to the vessel 2 by means of the wire or wires of a pumping line vessel-side part suspension-wire system 39.
  • a part of the pumping line vessel-side part suspension-wire system 39 is formed by a first hoisting means 40 having a set of wires 41 which are linked to the pumping line vessel-side part 27 in the vicinity of or on the first articulation 31.
  • This first hoisting means 40 are in this case provided in the vicinity of the stern 5 of the vessel 2, forming an aft ship pumping line suspension-wire system 40.
  • the set of wires 41 comprises in this case a double reeved wire 42, having a length of at least 310 m, and which is directly linked to the first articulation 31, i.e. swivel coupling 31, whereby the double reeved wire 42 is passed over a sheave 43 which is mounted on the swivel 13 and the double reeved wire 42 can be wound and unwound by means of a winch on board of the vessel 2.
  • the set of wires 41 comprises a single wire 44, which is connected to the bottom pumping line vessel-side part section 33 in the vicinity of the swivel coupling 31 and which can be wound and unwound by means of a separate winch of the first hoisting means 40 on the vessel 2.
  • the pumping line vessel-side part suspension-wire system 39 comprises a second hoisting means 45 having a set of wires 46 which are linked to the intermediate pumping line vessel-side part section 33 in the vicinity of or on the second articulation 36, i.e. the cardan coupling 36.
  • the set of wires 46 consists of a double reeved wire 46, having a length of at least 186 m, which is passed over a sheave 47 mounted on the intermediate pumping line vessel-side part section 33 in the vicinity of the cardan coupling 36 and which can be wound and unwound by means of a winch on board of the vessel 2.
  • the pumping line vessel-side part suspension-wire system 39 also comprises a third hoisting means 48 having a double reeved wire 49 which is passed over a sheave 50 which is mounted on the top pumping line vessel-side part section 34 in the vicinity of the third articulation 38, i.e. cardan coupling 38.
  • Still another part of the pumping line vessel-side part suspension-wire system 39 consists of a fourth hoisting means 51 having a single wire 52 which is hooked to the second extremity 19 of the pumping line vessel-side part 27 at the trunnion slide connection 20, as can be seen more clearly in figure 6 .
  • This fourth hoisting means 51 are provided on the vessel 2 in vertical alignment with the trunnion slide guide 22.
  • the pumping line vessel-side part 27 is at least partly suspended to the vessel 2 by means of the combination of the four hoisting means 40, 45, 48 and 51.
  • each pumping line vessel-side part section 32 to 34 is at least suspended by a separate wire or a separate set of wires 42,44,46 and 49 of the pumping line vessel-side part suspension-wire system 39, the separate wire or separate set of wires 42,44,46 and 49 being linked to the concerned pumping line vessel-side part section 32 to 34 in the vicinity of an articulation at the side of the concerned pumping line vessel-side part section 32 to 34 which is the most distant from the vessel 2.
  • an extremity of each said separate wire or set of separate wires 42,44,46 and 49 of each pumping line vessel-side part section 32 to 34 is or are wound on a corresponding separate winch and passed over a corresponding gantry of the pumping line vessel-side part suspension-wire system 39 provided on the vessel 2 at a distance from the fourth hoisting means 51 corresponding to the distance between the second extremity 19 of pumping line vessel-side part 27 and the connection of the concerned wire or wires 42,44,46 and 49 with the pumping line vessel-side part 27.
  • pumping line extension part 28 is at least partly suspended to the vessel 2 by means of the wire or wires of a pumping line extension part suspension-wire system 54, which is in the embodiment of the figures simply formed by fifth hoisting means.
  • this fifth hoisting means 55 is provided with a wire 56, with a length of at least 250 m, which is linked with one end to the suction tube inlet 17 and which is partly wound at a second end on a winch on the deck 6 of the vessel 2.
  • the concerned wire 56 passes from the winch over a gantry on the deck 2 and further over a roller cage 57 which is fixed to the pumping line vessel-side part 27, in this case on the intermediate pumping line vessel-side part section 34 in the vicinity of the second articulation 36.
  • the second hoisting means 45 and the pumping line extension part suspension-wire system 55 formed by the fifth hoisting means 56 are provided approximately at half of the length of the vessel 2, and can be considered as forming together a mid-ship pumping line suspension-wire system 58.
  • the different suspension-wire systems 39 and 45 with heave compensators in order to control the tension by avoiding that wires become temporarily loose and on wires so that the pumping line 8 is kept stable.
  • suction tube inlet 17 with a shock absorber 59, an example of which is represented in figure 10 .
  • the shock absorber 59 comprises two concentric telescopic pipes, i.e. an inner pipe and an outer pipe, not visible in figure 10 , and a spring 60 mounted between or over the telescopic pipes which spring 60 is compressed when the inner pipe is pushed into the outer pipe.
  • shocks between the suction tube inlet 17 and the seabed 18 induced by movements of the vessel 2 can be absorbed, so that no other parts of the pumping line 8 are subjected to such kind of shocks or at least on a very reduced level.
  • the vacuum in the suction tube 9 created by the pumping of the submergible pump 10 may induce implosions or water-hammering.
  • the pumping line 8 is preferably provided with vacuum relief valves 61 in order to prevent such phenomenon from occurring or causing damage.
  • vacuum relief valves 61 may be of an active or passive type and compensate for the concerned pressure differences and will allow regular flow through the pumping line 8.
  • top pumping line vessel-side part section 32 and the intermediate pumping line vessel-side part section 34 are metal tube sections, whereas the bottom pumping line vessel-side part section 33 and the pumping line extension part 28 comprise one or more plastic pipes which are provided in a metal lattice girder 62.
  • These lattice girders 62 also increase the resistance of the pumping line 8 against shocks in the pumping line 8.
  • the bottom pumping line vessel-side part section 33 and the pumping line extension part 28 may be constructed from a light weight glass-reinforced epoxy (GRE) pipe or any other plastic material.
  • GRE light weight glass-reinforced epoxy
  • the suction tube inlet 17 is provided with sensors for measuring the position of the suction tube inlet 17 with respect to the vessel 2 and which provide an input for a controller which controls the position of the suction tube inlet 17 by means of the suspension-wire systems 39 and 54.
  • the wire or wires of the suspension-wire systems 39 or 54 are hereby preferably provided with an interactive wire-tensioning control system by which the tension in the corresponding wires is kept within certain limits.
  • the vessel 2 is sailed towards an area to be dredged or mined the pumping line 8 being in a reduced status, as represented in figure 1 stored on board of the vessel.
  • the pumping line 8 Upon positioning of the vessel 2, ready for operations, the pumping line 8 is lifted from its cradles on deck 6 and swung overboard.
  • the pumping means 7 are brought into a submerged position and the articulated pumping line 8 is unfolded into an extended status by unwinding the wires 42, 44, 46, 48, 52 and 56 of the suspension-wire systems 39 and 54 in an appropriate manner until the suction tube inlet 17 reaches the seabed 18.
  • the pumping line 8 is descended from deck level to under water level by unwinding the wires 42, 44, 46, 49 and 52 of the pumping line vessel-side part suspension-wire system 39 and the wire 56 of the pumping line extension part suspension-wire system 54 simultaneously and all more or less at the same speed, so that the pumping line 8 is kept in the reduced status and is kept parallel with the deck 6.
  • the second extremity 19 of the pumping line 8 is slid in the trunnion slide guide 22, until the bottom 24 of the hull is reached, after which the discharge tube 11 of the pumping means 7 is connected to a discharge pipe in the hull 3 of the vessel 2.
  • the articulated pumping line 8 is unfolded into the extended status, which requires at least the following steps.
  • the concerned wires of the pumping line vessel-side part suspension-wire system 39 are unrolled, i.e. wires 42, 44, 46 and 49, but not wire 52 of the fifth hoisting means 51.
  • each wire 42, 44, 46 and 49 is unrolled at a controlled speed such that the pumping line vessel-side part 27 rotates downwards around the trunnion slide connection 20, the different pumping line vessel-side part sections 32 to 34 being kept approximately in line.
  • the suction tube inlet 17 is carefully lowered until the seabed 18 is reached by further unwinding the corresponding wires of the pumping line vessel-side part suspension-wire system 39 and the pumping line extension part suspension-wire system 54, i.e. wires 42, 44, 46, 49 and 56, each at a speed for realizing a downward vertical movement of the pumping line 8.
  • the dredging or mining operation at the concerned area can be started, by starting the submergible pump 10 and a jet-water pump for pumping water through the water-jet pipe 25.
  • the dredging or mining process is hereby monitored by a position and depth controller which receives input from a sensor or sensors mounted on the suction tube inlet 17.
  • the dredging or mining process is preferably at the same time also monitored by production-control gauges.
  • Such production-control gauges can for example be a differential pressure gauge, a mixture-velocity gauge, a concentration gauge or a density gauge, or any production-control gauge combination or any other type of production-control gauge.
  • the suction tube inlet 17 is lifted from the seabed 18 by winding the wires of the concerned suspension-wire systems 39 and 54 simultaneously, i.e wires 42, 44, 46, 49 and 56 each, at a speed corresponding with a vertical translational movement of the pumping line 8.
  • the pumping line 8 is flushed with seawater, after which the wires 42, 44, 46 and 49 of the pumping line vessel-side part suspension-wire system 39 and the wire 56 of the pumping line extension part suspension-wire system 54 are further wound.
  • the wires 46 and 56 of the mid-ship pumping line suspension wire system 58 are wound at a considerably different speed, i.e; wire 56 is wound at a higher speed, for example at double speed compared to the speed by which wire 46 is wound.
  • the whole pumping line 8 is flushed gravitationally during this hoisting above-water and subsequently lifted on-board and laid-down in its cradles.
  • the dredging process is not discontinued till the barge is filled.
  • the present invention is by no means limited to the embodiment of dredging equipment 1 according to the invention described as an example and illustrated in the drawings, but dredging equipment 1 according to the invention can be realised in all kinds of variants, without departing from the scope of the invention.
  • the present invention is also by no means limited to the method for dredging or mining according to the invention described as an example and illustrated in the drawings, but such a method according to the invention can be realised in all kinds of variants, without departing from the scope of the invention.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
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  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Treatment Of Sludge (AREA)
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  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (32)

  1. Équipement de dragage (1) qui comprend au moins :
    - un vaisseau (2) ;
    - des moyens de pompage (7) ; et
    - un ou plusieurs systèmes de câbles de suspension (39, 54) sur le vaisseau (2) chacun étant muni de moyens de levage (40, 45, 48, 51, 55) pour enrouler et dérouler un ou plusieurs câbles (42, 44, 46, 49, 52, 56) qui sont reliés aux moyens de pompage (7) ;
    les moyens de pompage (7) comprenant au moins :
    - une ligne de pompage (8) qui est constitué par un tube d'aspiration (9), une pompe submersible (10) et un tube d'évacuation (11) ;
    - une entrée (12) de la pompe submersible (10) qui est raccordée à une première extrémité (13) du tube d'aspiration (9) et une sortie (14) de la pompe submersible (10) qui est raccordée à une première extrémité (15) du tube d'évacuation (11) ;
    - une deuxième extrémité (16) du tube d'aspiration (9) représentant une extrémité libre formant une entrée (17) du tube d'aspiration pour aspirer un mélange d'eau et de matières désagrégées provenant de fonds marins (18) ;
    la ligne de pompage (8) représentant une ligne de pompage articulée (8) comprenant deux tronçons de la ligne de pompage ou plus (28, 32, 33, 34), deux tronçons adjacents de la ligne de pompage étant raccordés les uns aux autres en rotation au moyen d'une articulation (31, 36, 38), des parties différentes des moyens de pompage (7) étant reliées à un ou plusieurs câbles (42, 44, 46, 49, 52, 56) d'un des systèmes de câbles de suspension (39, 54) mentionnés ci-dessus d'une manière telle que, d'une part, en enroulant les câbles concernés, la ligne de pompage articulée (8) peut être repliée pour prendre un état réduit possédant des dimensions réduites et peut être amené dans une position embarquée, état réduit dans lequel au moins un certain nombre des tronçons de la ligne de pompage (28, 32, 33) sont amenés en parallèle et à proximité les uns des autres sur une partie substantielle de leur longueur, et d'autre part, en déroulant les câbles concernés de la ligne de pompage articulée (8), celle-ci peut être dépliée pour prendre un état étendu possédant des dimensions étendues, dans lequel les tronçons de la ligne de pompage (28, 32, 33, 34) sont distants les uns des autres, à l'exception de leur interconnexion au moyen de l'articulation concernée (31, 36, 38),
    dans lequel, la ligne de pompage articulée (8) comprend une partie de ligne de pompage située côté vaisseau (27) et une partie d'extension (28) de la ligne de pompage, reliées l'une à l'autre en rotation à une première de leurs extrémités (29, 30) au moyen d'une première articulation (31), la partie de la ligne de pompage située côté vaisseau (27) étant suspendue par rapport au vaisseau (2) au moins en partie au moyen desdits un ou plusieurs câbles (42, 44, 46, 49, 52, 56) d'un système de câbles de suspension (39) de la partie de la ligne de pompage située côté vaisseau, et la partie d'extension de la ligne de pompage (28) possédant à sa deuxième extrémité (16) une extrémité libre formant l'entrée du tube d'aspiration (17) étant suspendue au moins en partie par rapport au vaisseau (2) au moyen du câble (56) ou des câbles d'un système de câbles de suspension (54) de la partie d'extension de la ligne de pompage,
    caractérisé en ce que les moyens de pompage comprennent une liaison du type comprenant un coulisseau à tourillon (20) de la ligne de pompage (8) au vaisseau (2) à la deuxième extrémité (19) de la partie (27) de la ligne de pompage située côté vaisseau, la liaison du type comprenant un coulisseau à tourillon (20) étant telle que la ligne de pompage (8) peut se déplacer entre la position embarquée pour entreposer la ligne de pompage (8) à bord du vaisseau (2) et une position immergée à l'extérieur du vaisseau (2) et en dessous du niveau de l'eau (21) pour l'utilisation des moyens de pompage (8), la partie de la ligne de pompage située côté vaisseau possédant une longueur (L) qui correspond approximativement à la longueur (M) s'étendant entre la position de la liaison du type comprenant un coulisseau à tourillon (20) des moyens de pompage (7) avec le vaisseau (2) et la poupe (5) du vaisseau (2).
  2. Équipement de dragage (1) selon la revendication 1, caractérisé en ce que le câble (56) ou les câbles du système de câbles de suspension (39) de la partie d'extension de la ligne de pompage est ou sont relié(s), à une de ses (leurs) extrémités, à l'entrée (17) du tube d'aspiration, et est ou sont enroulé(s) en partie, à une deuxième extrémité, sur un treuil sur le pont (6) du vaisseau (2), tandis que le câble concerné (56) ou les câbles passe ou passent depuis le treuil par-dessus un portique sur le pont (6) et au-delà par-dessus une cage à rouleaux (57) qui est fixée à la partie de la ligne de pompage (27) située côté vaisseau.
  3. Équipement de dragage (1) selon l'une quelconque des revendications 1 à 2, caractérisé en ce que la partie d'extension (28) de la ligne de pompage est constituée par un tronçon rigide unique (28) du tube d'aspiration sans aucune articulation supplémentaire, en dehors de la première articulation (31).
  4. Équipement de dragage (1) selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la partie (27) de la ligne de pompage située côté vaisseau se compose de plusieurs tronçons (32-34) de la partie de la ligne de pompage située côté vaisseau et en ce que des tronçons adjacents de la ligne de pompage situés côté vaisseau sont reliés l'un à l'autre en rotation via une articulation (36, 38).
  5. Équipement de dragage (1) selon la revendication 4, caractérisé en ce que chaque tronçon (32-34) de la partie de la ligne de pompage située côté vaisseau est au moins suspendue via un câble séparé ou un jeu séparé de câbles (42, 44, 46, 49) du système (39) de câbles de suspension de la partie de la ligne de pompage située côté vaisseau, le câble séparé ou le jeu séparé de câbles (42, 44, 46, 49, 52) étant relié au tronçon concerné (32-34) de la partie de la ligne de pompage située côté vaisseau à proximité d'une articulation (31, 36, 38) du côté du tronçon concerné (32-34) de la partie de la ligne de pompage située côté vaisseau qui est le plus distant par rapport au vaisseau (2).
  6. Équipement de dragage (1) selon la revendication 5, caractérisé en ce qu'on enroule une extrémité de chaque câble séparé ou du jeu séparé de câbles (42, 44, 46, 49) de chaque tronçon (32-34) de la partie de la ligne de pompage située côté vaisseau sur un treuil séparé correspondant du système (39) de câbles de suspension de la partie de la ligne de pompage située côté vaisseau, prévu sur le vaisseau (2) et on la fait passer par-dessus un portique séparé correspondant sur le vaisseau (2).
  7. Équipement de dragage (1) selon l'une quelconque des revendications 4 à 6, caractérisé en ce que la partie (27) de la ligne de pompage située côté vaisseau est constituée par trois tronçons (32-34) de la partie de la ligne de pompage située côté vaisseau :
    - un tronçon supérieur (32) de la partie de la ligne de pompage située côté vaisseau, relié en rotation et en mobilité, à une extrémité (19), au vaisseau (2) au moyen de la liaison du type comprenant un coulisseau à tourillon (20) ;
    - un tronçon inférieur (33) de la partie de la ligne de pompage située côté vaisseau, relié en rotation, à une extrémité (29), au moyen de la première articulation (31), à la partie d'extension de la ligne de pompage (28) ;
    - un tronçon intermédiaire (34) de la partie de la ligne de pompage située côté vaisseau, monté en rotation, d'une part, à sa première extrémité (35), au tronçon inférieur (33) de la partie de la ligne de pompage située côté vaisseau, au moyen d'une deuxième articulation (36), et d'autre part, à sa deuxième extrémité (37), au tronçon supérieur (32) de la partie de la ligne de pompage située côté vaisseau, au moyen d'une troisième articulation (38).
  8. Équipement de dragage (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que la ligne de pompage (8) est équipée d'un tuyau à jet d'eau (25) monté le long de la ligne de pompage (8) et possédant une articulation à proximité de chaque articulation (31, 36, 38) de la ligne de pompage (8).
  9. Équipement de dragage (1) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au moins une des articulations (36, 38) représente un accouplement de Cardan qui permet une rotation limitée des tronçons adjacents (32-34) de la ligne de pompage.
  10. Équipement de dragage (1) selon l'une quelconque des revendications 4 et 9, caractérisé en ce que toutes les articulations (36, 38) prévues entre les tronçons (32-34) de la partie de la ligne de pompage située côté vaisseau sont des accouplements de Cardan.
  11. Équipement de dragage (1) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au moins une des articulations (31) ou plus représente(nt) un accouplement pivotant, qui permet une rotation sur 360° des tronçons adjacents de la ligne de pompage (28, 33).
  12. Équipement de dragage (1) selon l'une quelconque des revendications 1 et 11, caractérisé en ce que la première articulation (31) représente un accouplement pivotant.
  13. Équipement de dragage (1) selon l'une quelconque des revendications 1 à 12, caractérisé en ce que l'on prévoit des premiers moyens de levage (40) qui possèdent un câble (42, 44) ou un jeu de câbles (46) qui est ou sont relié(s) à la partie (27) de la ligne de pompage située côté vaisseau, à proximité de la première articulation (31) ou sur cette dernière, lesdits premiers moyens de levage (40) formant une partie du système de câbles de suspension (39) de la partie de la ligne de pompage située côté vaisseau.
  14. Équipement de dragage (1) selon la revendication 13, caractérisé en ce que les premiers moyens de levage (40) sont prévus à proximité de la poupe (5) du vaisseau (2) pour former un système de câbles de suspension (40) de la ligne de pompage du bateau, à l'arrière.
  15. Équipement de dragage (1) selon la revendication 7, caractérisé en ce que l'on prévoit des deuxièmes moyens de levage (45) qui possèdent un câble (46) ou un jeu de câbles qui est ou sont relié(s) au tronçon intermédiaire (34) de la partie de la ligne de pompage située côté vaisseau, à proximité de la deuxième articulation (31) ou sur cette dernière, lesdits deuxièmes moyens de levage (45) formant une partie du système de câbles de suspension (39) de la partie de la ligne de pompage située côté vaisseau.
  16. Équipement de dragage (1) selon la revendication 15, caractérisé en ce que les deuxièmes moyens de levage (45) et le système de câbles de suspension (54) de la partie d'extension de la ligne de pompage sont prévus approximativement à moitié de la longueur du vaisseau (2), pour former ensemble un système de câbles de suspension (58) de la ligne de pompage dans la partie médiane du bateau.
  17. Équipement de dragage (1) selon la revendication 7, caractérisé en ce que l'on prévoit des troisièmes moyens de levage (48) qui possèdent un câble (49) ou un jeu de câbles qui est ou sont relié(s) au tronçon supérieur (32) de la partie de la ligne de pompage située côté vaisseau, à proximité de la troisième articulation (31) ou sur cette dernière, lesdits troisièmes moyens de levage (48) formant une partie du système de câbles de suspension (39) de la partie de la ligne de pompage située côté vaisseau.
  18. Équipement de dragage (1) selon l'une quelconque des revendications 1 à 17, caractérisé en ce que l'on prévoit des quatrièmes moyens de levage (51) qui possèdent un câble (52) ou un jeu de câbles qui est ou sont relié(s) à la deuxième extrémité (19) de la ligne de pompage (8) à la liaison du type comprenant un coulisseau à tourillon (20), lesdits quatrièmes moyens de levage (48) formant une partie du système de câbles de suspension (39) de la partie de la ligne de pompage située côté vaisseau.
  19. Équipement de dragage (1) selon la revendication 18, caractérisé en ce qu'on prévoit un guide allongé (22) pour le coulisseau à tourillon le long d'une paroi latérale (23) de la coque (3) du vaisseau (2) depuis la base (24) jusqu'au pont (6), guide (22) pour le coulisseau à tourillon dans lequel la deuxième extrémité (19) du tube d'évacuation (11), d'une part, peut tourner autour d'un axe qui est perpendiculaire à la paroi latérale concernée (23), et d'autre part, peut effectuer des mouvements ascendants et descendantes le long de la paroi latérale concernée (23) de la coque (3) entre une position orientée vers le bas pour une liaison à un tuyau de décharge monté à l'intérieur de la coque (3) et une position orientée vers le haut à proximité du niveau du pont du vaisseau (2), en enroulant, respectivement en déroulant un câble ou des câbles des quatrièmes moyens de levage (51).
  20. Équipement de dragage (1) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend un ou plusieurs systèmes de câbles de suspension (39, 54) qui sont munis d'un compensateur de pilonnement.
  21. Équipement de dragage (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que l'entrée du tube d'aspiration (17) est munie d'un dispositif (59) pour amortir les chocs qui comprend deux tuyaux télescopiques concentriques, c'est-à-dire un tuyau interne et un tuyau externe, et un ressort (60) monté entre les tuyaux télescopiques, qui est comprimé lorsque le tuyau interne est poussé dans le tuyau externe.
  22. Équipement de dragage (1) selon la revendication 7, caractérisé en ce que le tronçon supérieur (32) de la partie de la ligne de pompage située côté vaisseau et le tronçon intermédiaire (34) de la partie de la ligne de pompage située côté vaisseau sont des tronçons de tubes en acier.
  23. Équipement de dragage (1) selon la revendication 7, caractérisé en ce que le tronçon inférieur (27) de la partie d'extension de la ligne de pompage et la partie (28) d'extension de la ligne de pompage sont constituées par un ou plusieurs tuyaux en matière plastique qui sont prévus dans une poutre en treillis métallique (62).
  24. Équipement de dragage (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que la ligne de pompage (8) est munie d'une ou de plusieurs soupapes de dépression (61).
  25. Équipement de dragage (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que l'entrée (17) du tube d'aspiration est munie de capteurs pour mesurer la position de l'entrée (17) du tube d'aspiration par rapport au vaisseau (2) et qui procurent une entrée pour un contrôleur qui règle la position de l'entrée du tube d'aspiration au moyen des systèmes de câbles de suspension (39, 54).
  26. Équipement de dragage (1) selon la revendication 25, caractérisé en ce qu'un ou plusieurs câbles des systèmes de câbles de suspension (39, 54) est/sont muni(s) d'un système de commande interactive pour la mise sous tension des câbles, par lequel la tension régnant dans les câbles correspondants est maintenue en deçà de certaines limites.
  27. Procédé pour le dragage ou l'extraction, comprenant un équipement de dragage (1) selon la revendication 1, caractérisé en ce que le procédé comprend au moins les étapes suivantes consistant à :
    - appareiller le vaisseau (2) en direction d'une zone qui doit faire l'objet d'un dragage ou d'une extraction, la ligne de pompage (8) se trouvant dans un état réduit ;
    - dérouler des câbles (42, 44, 46, 49, 52, 56) des systèmes de câbles de suspension (39, 54) pour abaisser les moyens de pompage (7) et dérouler la ligne de pompage articulée (8) pour obtenir un état étendu jusqu'à ce que l'entrée (17) du tube d'aspiration atteigne les fonds marins (18) ;
    - procéder à un dragage ou à une extraction dans la zone concernée par pompage d'un mélange de matières de fonds marins (18) et d'eau dans le vaisseau (2) ou dans une barge ; et
    - enrouler des câbles (42, 44, 46, 49, 52, 56) des systèmes de câbles de suspension (39, 54) pour replier la ligne de pompage articulée (8) pour obtenir un état réduit et amener les moyens de pompage (7) dans la position embarquée pour les entreposer à bord du vaisseau (7) après le dragage ou lorsque la charge utile du vaisseau (2) est atteinte,
    caractérisé en ce que, avant de déplier la ligne de pompage articulée (8), le procédé comprend au moins les étapes suivantes consistant à :
    - descendre la ligne de pompage (8) depuis le niveau du pont jusqu'à un niveau sous-marin immergé (21) en déroulant les câbles (42, 44, 46, 49, 52, 56) du système de câbles de suspension (39) de la partie de la ligne de pompage située côté vaisseau et du système de câbles de suspension (54) de la partie d'extension de la ligne de pompage, de manière simultanée, à la même vitesse, la ligne de pompage (8) étant maintenue à l'état réduit et étant maintenue dans une position parallèle au pont (6), et en faisant coulisser la deuxième extrémité (19) de la ligne de pompage (8) dans le guide de coulisseau (22) ; et
    - relier le tube d'évacuation (11) des moyens de pompage (7) à un tuyau d'évacuation dans la coque (3) du vaisseau (2).
  28. Procédé pour le dragage ou l'extraction selon la revendication 27, comprenant un équipement de dragage (1) selon la revendication 1, caractérisé en ce que le dépliage de la ligne de pompage articulée (8) comprend au moins les étapes suivantes consistant à :
    - dérouler le câble ou les câbles concernés (42, 44, 46, 49, 52, 56) des systèmes de câbles de suspension (39, 54), chacun à une vitesse telle que la partie (27) de la ligne de pompage située côté vaisseau effectue des rotations descendantes autour de la liaison du type comprenant un coulisseau à tourillon (20), les différents tronçons (32-34) de la partie (27) de la ligne de pompage située côté vaisseau étant maintenus approximativement en ligne, le câble (56) ou les câbles du système de suspension de câbles (54) de la partie d'extension de la ligne de pompage étant déroulés à une vitesse supérieure dans le but d'obtenir une rotation de la partie d'extension de la ligne de pompage par rapport à la partie (27) de la ligne de pompage située côté vaisseau ;
    - poursuivre le déroulement des câbles concernés (42, 44, 46, 49, 52, 56) du système de câbles de suspension (39) de la partie de la ligne de pompage située côté vaisseau et du système de câbles de suspension (54) de la partie d'extension de la ligne de pompage jusqu'à ce que l'on obtienne une orientation de la partie (28) d'extension de la ligne de pompage dans une position approximativement verticale et une position de l'entrée (17) du tube d'aspiration à quelques mètres au-dessus du niveau des fonds marins (18) ; et
    - abaisser avec prudence l'entrée (17) du tube d'aspiration jusqu'à ce qu'elle atteigne les fonds marins (18) en poursuivant le déroulement des câbles correspondants (42, 44, 46, 49, 52, 56) des systèmes de câbles de suspension (39, 54) de la ligne de pompage.
  29. Procédé pour le dragage ou l'extraction selon l'une quelconque des revendications 27 à 28, caractérisé en ce que le processus de dragage ou d'extraction est surveillé par un contrôleur de la position et de la profondeur qui reçoit des entrées à partir d'un capteur ou de capteurs monté(s) sur l'entrée (17) du tube d'aspiration.
  30. Procédé pour le dragage ou l'extraction selon l'une quelconque des revendications 27 à 29, caractérisé en ce que le processus de dragage ou d'extraction est surveillé par des jauges de contrôle de la production.
  31. Procédé pour le dragage ou l'extraction selon la revendication 27, caractérisé en ce que les jauges du contrôle de la production comprennent un ou plusieurs des types suivants de jauges :
    - une jauge de la pression différentielle ;
    - une jauge de la vitesse du mélange ;
    - une jauge de la concentration ; et
    - une jauge de la densité.
  32. Procédé pour le dragage ou l'extraction selon l'une quelconque des revendications 27 à 31, comprenant un équipement de dragage selon la revendication 21, caractérisé en ce que, pour amener les moyens de pompage (7) dans la position embarquée, le procédé comprend au moins les étapes consistant à :
    - soulever l'entrée (17) du tube d'aspiration à partir des fonds marins (18) en enroulant les câbles (42, 44, 46, 49, 52, 56) des systèmes de câbles de suspension concernés (39, 54) de manière simultanée ;
    - rincer le tube d'aspiration (9) avec de l'eau de mer ;
    - enrouler les câbles (42, 44, 46, 49, 52, 56) du système de câbles de suspension (39) de la partie de la ligne de pompage située côté vaisseau et du système de câbles de suspension (54) de la partie d'extension de la ligne de pompage, la vitesse à laquelle on enroule le câble (56) ou les câbles du système de câbles de suspension de la partie d'extension de la ligne de pompage étant supérieure dans le but de soumettre la partie d'extension de la ligne de pompage (28) à des rotations en direction de la partie (27) de la ligne de pompage située côté vaisseau jusqu'à obtenir l'état réduit ;
    - enrouler les câbles (42, 44, 46, 49, 52, 56) du système de câbles de suspension (39) de la partie de la ligne de pompage située côté vaisseau et du système de câbles de suspension (54) de la partie d'extension de la ligne de pompage de manière simultanée lorsque la partie d'extension (28) de la ligne de pompage a été amenée en parallèle avec la partie (27) de la ligne de pompage située côté vaisseau, les différents tronçons (32-34) de la ligne de pompage articulée (8) effectuant des rotations à l'état réduit autour de la liaison du type comprenant un coulisseau à tourillon (20) jusqu'à ce que la ligne de pompage (8) atteigne le niveau inférieur (24) du vaisseau (2) ;
    - déconnecter le tube d'évacuation (11) de la ligne de pompage (8) par rapport au tuyau d'évacuation (11) dans la coque (3) du vaisseau (2) ; et
    - déplacer la ligne de pompage (8) vers le haut à partir du niveau sous-marin jusqu'au niveau du pont en enroulant les câbles concernés (42, 44, 46, 49, 52, 56) des systèmes de câbles de suspension impliqués (39, 54) dans le but de faire coulisser la deuxième extrémité (19) de la ligne de pompage (8) vers le haut dans le guide (22) pour le coulisseau à tourillon, la ligne de pompage (8) étant maintenue à l'état réduit et étant maintenue en parallèle avec le pont (6).
EP12001800.7A 2012-03-16 2012-03-16 Équipement de dragage et procédé pour draguer ou explorer avec un tel équipement Active EP2639359B1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
ES12001800.7T ES2615519T3 (es) 2012-03-16 2012-03-16 Equipo y método de dragado para el dragado o extracción con dicho equipo
LTEP12001800.7T LT2639359T (lt) 2012-03-16 2012-03-16 Dugno gilinimo įranga ir dugno gilinimo arba kasimo naudojant tokią įrangą būdas
EP12001800.7A EP2639359B1 (fr) 2012-03-16 2012-03-16 Équipement de dragage et procédé pour draguer ou explorer avec un tel équipement
SI201230905A SI2639359T1 (sl) 2012-03-16 2012-03-16 Oprema plavajočega sesalnega bagra in postopek za bagranje ali izkopavanje s tako opremo
PL12001800T PL2639359T3 (pl) 2012-03-16 2012-03-16 Urządzenie pogłębiające i sposób pogłębiania lub wydobywania przy użyciu takiego urządzenia
RS20170073A RS55623B1 (sr) 2012-03-16 2012-03-16 Oprema za bagerovanje i metod bagerovanja ili iskopavanja pomoću te opreme
HUE12001800A HUE032059T2 (en) 2012-03-16 2012-03-16 Excavator and dredging or mining equipment with such equipment
HRP20170063TT HRP20170063T1 (hr) 2012-03-16 2017-01-16 Oprema za jaružanje i postupak jaružanja ili rudarenja takvom opremom

Applications Claiming Priority (1)

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EP12001800.7A EP2639359B1 (fr) 2012-03-16 2012-03-16 Équipement de dragage et procédé pour draguer ou explorer avec un tel équipement

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EP2639359A1 EP2639359A1 (fr) 2013-09-18
EP2639359B1 true EP2639359B1 (fr) 2016-12-21

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EP (1) EP2639359B1 (fr)
ES (1) ES2615519T3 (fr)
HR (1) HRP20170063T1 (fr)
HU (1) HUE032059T2 (fr)
LT (1) LT2639359T (fr)
PL (1) PL2639359T3 (fr)
RS (1) RS55623B1 (fr)
SI (1) SI2639359T1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107575233A (zh) * 2017-08-03 2018-01-12 化工部长沙设计研究院 一种带有平衡装置的泵用渠采浮箱

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013213178A (ja) * 2012-03-05 2013-10-17 Nitto Denko Corp 粘着剤原料および熱伝導性粘着シート
CN106193169B (zh) * 2016-08-22 2018-11-27 中交天航港湾建设工程有限公司 一种绞吸式挖泥船近极限挖深施工方法
CN106884452A (zh) * 2017-04-19 2017-06-23 安徽捷思新型材料有限公司 水底吸污专用装置
CN107975082A (zh) * 2017-12-07 2018-05-01 浙江海洋大学 一种挖泥船中的绞削单元
CN113325538B (zh) * 2021-05-28 2022-10-04 浙江舟山海洋输电研究院有限公司 一种用于海底沟壑环境光纤铺设的埋设装置
CN113404113A (zh) * 2021-07-30 2021-09-17 韩石磊 一种水利施工用河道清淤泥装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE585651C (de) * 1931-01-02 1933-10-10 Schiff Und Maschb Akt Ges Deut Saugbagger mit einem an mehreren Seil- oder Kettenzuegen heb- und senkbar aufgehaengten Saugrohr
NL73029C (fr) * 1934-02-25
NL7108106A (fr) * 1971-06-14 1972-12-18
BE794582A (nl) * 1972-01-28 1973-07-26 Ballast Nedam Groep Nv Grondzuiger met een leidingstelsel voor het opzuigen van grond
FR2313547A1 (fr) * 1975-06-04 1976-12-31 Coflexip Dispositif pour la recuperation de matieres solides sous-marines et procede pour la mise en oeuvre de ce dispositif
NL7908959A (nl) * 1979-12-12 1981-07-16 Bos Kalis Westminster Zuigbaggerinstallatie.
NL8103485A (nl) * 1981-07-23 1983-02-16 Haak Rob Van Den Hopperzuiger.
JPS61151335A (ja) * 1984-12-24 1986-07-10 Kawanami:Kk 深部浚渫装置
JPS62133756U (fr) * 1986-02-17 1987-08-22
NL1011629C2 (nl) * 1999-03-22 2000-09-27 Marine Structure Consul Werkwijze voor het positioneren van een graafgereedschap ten opzichte van een vaartuig alsmede een vaartuig met graafgereedschap.
JP4195214B2 (ja) * 2001-11-01 2008-12-10 ヤコブセン トム 屈曲部に開口部を有するパイプを用いた浚渫装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107575233A (zh) * 2017-08-03 2018-01-12 化工部长沙设计研究院 一种带有平衡装置的泵用渠采浮箱

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PL2639359T3 (pl) 2017-06-30
EP2639359A1 (fr) 2013-09-18
ES2615519T3 (es) 2017-06-07
RS55623B1 (sr) 2017-06-30
LT2639359T (lt) 2017-03-27
HRP20170063T1 (hr) 2017-05-19
HUE032059T2 (en) 2017-09-28
SI2639359T1 (sl) 2017-04-26

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