EP3471533A1 - Récolteuse d'algues - Google Patents

Récolteuse d'algues

Info

Publication number
EP3471533A1
EP3471533A1 EP17739337.8A EP17739337A EP3471533A1 EP 3471533 A1 EP3471533 A1 EP 3471533A1 EP 17739337 A EP17739337 A EP 17739337A EP 3471533 A1 EP3471533 A1 EP 3471533A1
Authority
EP
European Patent Office
Prior art keywords
seaweed
substrate
harvesting system
harvesting
cutting
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.)
Pending
Application number
EP17739337.8A
Other languages
German (de)
English (en)
Inventor
Jochem SIJL
Maria Bernardete Gonçalves Castro
Robert Gerard Van De Ketterij
Yarno Ketting
Christian Heinrich BRANDEMANN
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.)
IHC Holland lE BV
Original Assignee
IHC Holland lE BV
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 IHC Holland lE BV filed Critical IHC Holland lE BV
Publication of EP3471533A1 publication Critical patent/EP3471533A1/fr
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G33/00—Cultivation of seaweed or algae
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D44/00—Harvesting of underwater plants, e.g. harvesting of seaweed
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management

Definitions

  • the present invention relates to a seaweed harvesting system, vessel comprising such a seaweed harvesting system, a seaweed cultivation system and a coupling device for coupling substrates for seaweed.
  • the vessel has a reaper, and during harvesting, one line is pulled over the reaper where hanging seaweed from the holder will be cut by the reaper and fall into the waiting vessel.
  • Other devices for harvesting also typically include some sort of system to pull a rope with seaweed to a surface or a vessel for cutting and harvesting the seaweed.
  • Such systems can be found in KR20120010440 and CN103069966. While some of these devices and systems are semi-automatic, each require a considerable amount of human labour.
  • the invention aims to provide a seaweed harvesting system that is seaworthy, requires minimal labour and is able to harvest seaweed fast. Another object of the invention is to improve existing seaweed harvesting systems in that a problem associated therewith is at least partly solved.
  • Yet another object of the invention is to provide an alternative seaweed harvesting system.
  • the present invention therefore seeks to provide a seaweed harvesting system for collecting seaweed comprising:
  • an intake section for taking a seaweed substrate for growing seedlings and/or seaweed at the waterline
  • the cutting device comprises a pre-tensioning system to control a cutting force applied to the substrate.
  • the pre-tensioning system can take a number of different forms and can include one or more of a guiding system to tension a seaweed line; a knife or cutting system which controls the tension and/or cutting force; and a system for gathering or pushing the seaweed to a position for easier cutting such as a funneling or guiding system.
  • a guiding system to tension a seaweed line
  • a knife or cutting system which controls the tension and/or cutting force
  • a system for gathering or pushing the seaweed to a position for easier cutting such as a funneling or guiding system.
  • Each of these can also take many different forms, for examples, springs or other devices to have tension in the substrate and/or the knives; and gathering systems to make the seaweed more tensioned such that more of the knife contacts and cuts the seaweed.
  • a seaweed harvesting system as defined above is provided, wherein the transport device comprises spaced apart guiding means for aligning the substrate and the harvesting system. This alignment avoids mechanical tension in the substrate or any other transport lines.
  • a seaweed harvesting system as defined above is provided, in which the harvesting device comprises a washing device for washing seaweed while the substrate is transported through the washing device.
  • washing the seaweed can be needed before final use. Washing of the seaweed is enabled during harvesting.
  • a seaweed harvesting system as defined above is provided, in which the washing device is arranged upstream with respect to the cutting device. Washing of the seaweed while attached to the substrate gives much better control of the washing and dripping process.
  • a seaweed harvesting system as defined above is provided, wherein the intake device comprises a guiding member for guiding the seaweed into the device.
  • the guiding member can be proximate the waterline for guiding the substrate along the transport direction and/or at the entrance of the intake section, which could be away from the waterline in some embodiments. This way, the seaweed substrates can enter and be guided into the harvesting system gently, even when the currents are strong.
  • the guiding device and/or intake section could also include a heave compensation system which can help the harvesting system to be able to continue harvesting even through rough sea state.
  • a seaweed harvesting system as defined above is provided, comprising substrate guiding means to hold the substrate above the waterline. This ensures that the seaweed substrate is maintained within the harvesting device. The seaweed is guided to a final storage location.
  • a seaweed harvesting system as defined above is provided, comprising a collecting device arranged downstream the cutting device for collecting cut seaweed into a seaweed container.
  • the seaweed container acts as temporary a buffer so that e.g. compacting and packaging of seaweed is decoupled from the cutting device and the transport device and can be done independently.
  • a seaweed harvesting system as defined above is provided, comprising a compacting unit to compact cut seaweed. Freshly harvested seaweed takes much space. Compacting may reduce the volume up to 50% of the original.
  • a seaweed harvesting system as defined above is provided, wherein the transport device comprises a first endless conveyor belt arranged downstream and adjacent to the intake section, and wherein the first endless conveyor belt makes an angle a of between 30°- 90° with respect to the horizontal, preferably between 30°- 60°, more preferably between 35°- 45°.
  • the conveyor belt making the angle a with the horizontal waterline lifts the seaweed substrate gently from the water, and at the same time excess salt water can flow downwards back to the sea. Moreover, by having the specific angle with respect to the horizontal, the conveyor belt can easily carry all the heavily grown seaweed of the intake section, with a minimal friction of the intake section and other mechanical parts within the system that could cause wear and tear of said intake section. In this manner, the intake section will have an extended longevity and better performance.
  • a seaweed harvesting system as defined above is provided, comprising a mooring system to securely connect the harvesting system to the sea bed, wherein the mooring system comprises a damping system.
  • Limiting the mechanical tension and stress in the substrate is important.
  • the mooring system comprising a damping system contributes to control of the mechanical tension and stress in the substrate.
  • a seaweed harvesting system as defined above is provided, comprising a buoyancy control unit to allow the harvesting system to be lowered below the waterline. Active control of buoyancy and flotation is useful in offshore conditions.
  • the harvesting system can be lowered under water. It will be understood that the default situation of the harvesting system will be floating. If circumstances require so, like rough sea conditions, the harvesting system can be lowered to a safe depth below the waterline and can be recovered later.
  • a seaweed harvesting system as defined above is provided, comprising a winch arrangement for coupling the harvesting system to a transport line.
  • a winch arrangement for coupling the harvesting system to a transport line.
  • the winch arrangement allows for the harvester system to "seed" that is to say launching the freshly planted substrate into the water.
  • the winch arrangement may also contribute to transport of the substrate through the harvesting system during harvesting.
  • the invention further relates to a vessel comprising a seaweed harvesting system as defined above.
  • the invention further relates to a seaweed cultivation system comprising a harvesting system as defined above, wherein the seaweed cultivation system comprises:
  • each of the floaters is securely connected to the seabed by a mooring system comprising an damping system, preferably an active damping system,
  • the substrate is at least partly accommodated within the harvesting system to harvest the seaweed.
  • This enables a continuous and automated process wherein both seaweed and the seaweed substrate are removed from the water in a continuous way. The process is much faster than manual harvesting. There is no need for human labour on the heavy and dangerous conditions of working on at sea.
  • the first and second floaters enable to control the mechanical tension in the substrate and the depth of the substrate with respect to the waterline.
  • seaweed substrates may be connected to the first and second floaters.
  • Such substrates may take the form of for example a line, a netting or ribbons. Handling of multiple substrates simultaneously increases productivity. There is a given limit to the speed at which a seaweed substrate can be pulled from the water, beyond that speed, seaweed will detach from the substrate or be damaged.
  • a seaweed cultivation system as defined above wherein the displacement system comprises:
  • a seaweed cultivation system as defined above is provided, wherein the displacement system further comprises a stretcher connected to the first floater for tensioning the substrate, or if applicable a number of substrates simultaneously. The stretcher keeps the substrate(s) under tension, and solves the problem of rupture of substrates.
  • a seaweed cultivation system as defined above wherein a fast coupling device is provided on the first floater for connecting and locking the substrate with the cultivation system.
  • a fast coupling device is provided on the first floater for connecting and locking the substrate with the cultivation system.
  • Use of a fast and robust seaworthy locking device will speed up seeding and harvesting.
  • connecting of a substrate to a floater or to another substrate section is currently done by knots. This takes too much time and in addition, knots do not runs smoothly over a pulley.
  • the substrate may typically have a length of 50 meter. If one wants have a bigger cultivation system, substrate sections need to be connected to one another.
  • a seaweed cultivation system as defined above is provided, wherein an active floating member is provided to actively submerge the first floater and/or the second floater by adding or removing fluid to a fluid tank connected to the first and second floater, and a control device to control the submersion and flotation.
  • this active control of flotation is useful in offshore conditions.
  • the whole cultivation system or in other words farm, can be lowered under water.
  • fluid is transferred between tanks that are closed from the outside environment, this eliminates the contact with sea water which otherwise may cause trouble.
  • fig. 1 shows in perspective view a harvesting system according to the invention
  • fig. 2 is a schematic view of a detail of a harvesting system in that a first embodiment of a cutting device is shown
  • fig. 3a, 3b is a detail of a harvesting system wherein a second embodiment of a cutting device is shown in two states
  • fig. 4a, 4b is a detail of a harvesting system in that transport device is shown and a first (4a) and second (4b) embodiment of a cutting device,
  • fig. 5a, 5b schematically shows a side view of a cultivation system in default (5a) and submerged state (5b),
  • fig. 6a, 6b details of the cultivation system regarding mooring and buoyancy
  • fig. 7, 7a, 7b show a fast coupling device for coupling a seaweed substrate
  • fig. 9a shows a further embodiment of a harvesting system where cutting is done at a distance from the line
  • fig. 9b shows a top view of fig. 9a
  • fig. 10 shows an embodiment of a harvesting system using a cylindrical cutting system
  • fig. 10b shows a close up view of the cylindrical cutting system
  • figs 10c-10d show an end view of the cylindrical cutting system
  • fig. 10e shows an end view of a further embodiment of a cylindrical cutting system.
  • Fig. 1 shows in perspective view a seaweed harvesting system 1 according to the invention.
  • the harvesting system is arranged on a vessel 12.
  • the seaweed harvesting system 1 is designed for collecting seaweed out of the sea.
  • the harvesting system comprises an intake section 3 for taking a seaweed substrate 13 for growing seedlings and/or seaweed at the waterline.
  • the intake section 3 is V - shaped and guides the substrate 13 into the harvesting system 1 .
  • the harvesting system 1 has guiding means 13 for aligning the substrate 13 and the harvesting system 1 .
  • the substrate 13 is in the form of a line or rope.
  • the harvesting system 1 comprises a transport device 2 for transporting the substrate in a transport direction from the intake section 3 through the harvesting system 1 .
  • the harvesting device 1 comprises a washing device 5 for washing seaweed while the substrate 13 is transported through the washing device 5.
  • the harvesting system 1 comprises a cutting device 7 for cutting the seaweed from the substrate 13.
  • the washing device 5 is arranged upstream with respect to the cutting device 7.
  • the harvesting system 1 comprises a collecting device 1 1 in the form of a container arranged downstream the cutting device 7 for collecting cut seaweed.
  • the harvesting system 1 comprises a compacting unit 9 to compact cut seaweed. Freshly harvested seaweed takes much space. Compacting may reduce the volume up to 50% of the original.
  • the transport device comprises a first endless conveyor belt arranged adjacent to the intake section 3.
  • the first endless conveyor belt makes an angle a of between 30°- 90° with respect to the horizontal, preferably between 30°- 60°, more preferably between 35°- 45°.
  • the intake section 3 and/or the guiding device can include a heave compensation system to ensure that the seaweed harvesting system can operate even in rough seas.
  • the harvesting system 1 comprises a mooring system (not shown) to securely connect the harvesting system 1 to the sea bed.
  • the mooring system comprises a damping system.
  • the seaweed harvesting system comprises a buoyancy control unit (not shown) to allow the harvesting system 1 to be lowered below the waterline.
  • the harvesting system 1 comprises a winch arrangement 6 for coupling the harvesting system to a transport line 13 which here also functions as a substrate.
  • the harvesting system 1 is placed on a vessel, here a pontoon. As an option, the harvesting system 1 is containerizable.
  • Fig. 2 shows a schematic view of a detail of a harvesting system in that a first
  • the cutting device 7 cuts seaweed 14 from the substrate 13.
  • the cutting device 7 comprises a pre-tensioning system in the form of a spring 16 to control a cutting force Fc (not shown) applied to the substrate 13, here a line.
  • the substrate 13 runs between a pair of knifes 15a, 15b.
  • the knives 15a, 15b have a circular shape with a cutting edge at their outer circumference.
  • the knives 15a, 15b are rotatably arranged.
  • the axis of rotation of the knives 15a, 15b is transverse with respect to the transport direction of the substrate 13.
  • Fig. 3a, 3b is a detail of a harvesting system wherein a second embodiment of a cutting device 7 is shown in two states.
  • the knife 17b has an elongate shape and has a cutting edge at its leading side that is the side facing approaching seaweed 14.
  • the presence of an additional knife 17b is conceivable.
  • an opposite knife 17a is provided.
  • the substrate 13 runs between the knives 17a, 17b.
  • the cutting force is controlled by means of a spring 16 and a wedge arrangement 18 slideably coupled with the knife 17b.
  • pre-tensioning system 16 which is embodied in the form of a spring element 16 in this embodiment could also be a different elastic element deformable by pressure applied in the direction generally along an axis extending between the first and second ends of said element, a pneumatic element or the like.
  • Fig. 4a, 4b is a detail of a harvesting system 1 in that a transport device 2 is shown and a first (fig. 4a) and second (fig. 4b) embodiment of a cutting device 7.
  • the substrate 13 is transported by the transport device 2 in the form of a conveyer belt.
  • the belt has protrusions 19 that engage the substrate 13 for transporting the substrate 13.
  • the protrusions 19 extend into the meshes of the substrate 13 that has the form of a netting.
  • the cutting device 7 has an elongate knife that extends transverse with respect to the transport device 2.
  • the elongate knife makes an angle of about 45° with respect to the transport direction.
  • the cut seaweed 14 is forced onto a transverse conveyer 8.
  • Fig 4b has a series of pair of knifes as shown in fig. 2 as a cutting device 7.
  • fig. 5a, 5b schematically shows a side view of a cultivation system 26 in default (fig. 5a) and submerged state (fig. 5b).
  • the seaweed cultivation system 26 comprises a harvesting system as described above, however not shown here.
  • the seaweed cultivation system 26 comprises a first and a second floater 21 a, 21 b.
  • the first and a second floater 21 a, 21 b are connected to an anchoring element 201 , 20b.
  • Each floater 21 may have a respective anchoring element 20 as shown in fig 5a, or anchoring elements 20 that have an anchoring point in common as shown in fig. 6b.
  • the seaweed cultivation system 26 comprises a displacement system that may drive a harvesting system and/or floaters 21 when required.
  • the displacement system is provided at a position in between the first 21 a and second floater 21 b such that a seaweed substrate 24 of seedlings and/or seaweed is connected to the first and second floaters.
  • Each of the floaters 21 a, 21 b is securely connected to the seabed by a mooring system 20a, 20b comprising a damping system, preferably an active damping system.
  • the substrate 24, here a line is at least partly accommodated within the harvesting system to harvest the seaweed.
  • the first and second floaters 20a, 20b enable control of the mechanical tension in the substrate 24 and the depth of the substrate 24 with respect to the waterline 22.
  • the displacement system comprises a winch 23 connected to the first floater 21 a.
  • the displacement system comprises a pulley 25 connected to the second floater 21 b.
  • the displacement system comprises a line 24 extending from the winch 23 around the pulley 25 and to the harvesting system. It is conceivable that the line 24 is connected to the second floater and/or the harvesting system.
  • the winch 23 is able to wind or unwind the line 24 to move the harvesting system between the first 21 a and the second 21 b floater. It is conceivable that the harvesting system is connected to the harvesting system through a floating bracket.
  • the line 24 may be a separate transport line and/or a line that also functions as a substrate.
  • the displacement system further comprises a stretcher (not shown) connected to the first floater 21 a for tensioning the substrate 24.
  • Fig. 6a, 6b show details of the cultivation system regarding mooring and buoyancy. Fluid may be pumped between containers to raise or lower a mooring system and/or a floater 21 .
  • the anchoring elements 20 a-c have an anchoring point in common that is here, the floater 21 with a buoyancy control system.
  • Fig. 7, 7a, 7b show a fast coupling device 27 for coupling a seaweed substrate 28.
  • the coupling device 27 is slung around a pulley 43 and couples substrate sections 13.
  • the fast coupling device 27 solves a problem in that existing locking devices are not seaworthy enough for underwater applications, or the cross section of existing coupling devices is too large compared to the line diameter. Another problem with existing couplings is they are too stiff to run around a pulley. Also seamen knots to connect ropes and other elements in seaweed farms are not suitable for running through pulleys of the harvesting device.
  • the fast coupling device 27 has a limited outer diameter.
  • the coupling device 27 is seaworthy and can be locked in a few seconds, or even with the use of machines in case the ropelike structures are heavy and large. Seaworthiness of the coupling device 27 is ensured by the locking sequence and by the choice of materials. Further the fast-coupling device is made of flexible material that allows the coupling 27 to follow guides and pulleys even with tight turning radius, even in the situation when the turning hook in the transport is smaller than 90°, see fig. 8.
  • the coupling has two main elements, a male portion left in fig. 7 and a female portion right in fig. 7.
  • the male portion and the female portion are coupled by a twistlock arrangement 32, 33a, 35b. Additionally, the male portion and the female portion are coupled trough a threaded connection 40, 41 , 42. This double connection ensures a secure coupling while maintaining a small outer diameter.
  • a loose line or rope end is provided with a cone shape, or here a double cone.
  • a closing ring 36 slides along a respective housing 37, 38 that accommodates a loose line end and a cone shape in orderto secure the loose end to a respective housing 37, 38 by wedging.
  • the two housings 37, 38 then connect through the twistlock arrangement 32, 33a, 35b.
  • the twistlock arrangement 32, 33a, 35b comprises a rectangular locking element 32. This element 32 is introduced into the female portion, and then twisted. Upon twisting the element 32, stop faces 33a and 35b abut.
  • a spring exerts a force onto the element 32 that forces the stop faces 33a and 35b into engagement.
  • the twistlock typically needs a turn of about 90°.
  • the coupling is finalized by a screw connection.
  • the male portion and the female portion are provided with external threading 40, 41 and a sleeve is provided with internal threading 42.
  • Fig. 9a schematically shows a further embodiment of the seaweed harvesting system 1
  • Fig. 9b shows a top view of Fig. 9a in which the pre-tensioning system includes guides 45 before and after cutting knife 47 (with upper knife 47a and lower knife 47b) to ensure line 13 is tensioned.
  • Seaweed harvesting system 1 of Fig. 9a operates in much of the same manner as that described in Fig. 1 , though this embodiment also includes and funnel 48 as part of pre-tensioning system. Funnel 48 helps to gather and condense seaweed for cutting by knife 47, as best seen in Fig. 9b. Pushing seaweed together before cutting can help in the cutting process, ensuring that the seaweed is cut and not simply pushed aside.
  • lower knife 47b is located at a distance from line 13 such that some seaweed is still left hanging on line 13 after cutting. This can allow for the line to more easily be used to grow more seaweed after harvesting.
  • One or both parts 47a, 47b of knife 47 can be adjustable in relation to the line 13 such that the cutting length can be varied. In some embodiments, the line could be directly fed back into the water after cutting for growing more seaweed.
  • Fig. 10a schematically shows an embodiment of a seaweed harvesting system 1 with a cylindrical cutting system 50
  • Fig. 10b shows a close up view of cylindrical cutting system 50
  • Figs. 10c-10d show an end view of cylindrical cutting system 50
  • fig. 10e shows an end view of a further embodiment of a cylindrical cutting system 50'.
  • Seaweed harvesting system 1 of Fig. 10a operates in much of the same way as described in relation to the seaweed harvesting system of Fig. 1 and Figs. 9a-9b, and uses guides 45 to pre-tension the rope 13 for cutting the seaweed.
  • Cutting system 50 includes fixed knife 52 and rotating knife 54 with a rotation axis in line with the seaweed rope.
  • Fig. 10b shows fixed knife 52 protruding from rotating knife 54, but this is for viewing purposes only and knife edges would line up in practice.
  • Figs. 10c-10e one or both of fixed knife 52 and rotating knife 54 can be separable.
  • each knife 52, 54 are hinged on one side, and in the embodiment of Fig. 10e, each part of knives 52, 54 fully separates from the other side.
  • a simple coupling or push connection could be used to connect one side in knife 50 and/or both sides in knife 50'.
  • knife 50, 50' The ends of rotating knife 54 and fixed knife 52 are sharpened for cutting seaweed from line 13 as line 13 passes through knife 50, 50'.
  • knife 50, 50' parts By making knife 50, 50' parts easily separable, knife 50, 50' parts can be easily cleaned and maintained, and any clogs can be easily and quickly cleared to restart the harvesting process.
  • both of knives 52, 54 could be fixed.
  • Fig. 11 shows an embodiment of a seaweed harvesting system 1 with a collecting device 1 1 directly below cutting system 7. Seaweed falls as it is cut by cutting system 7, and collecting device 1 1 collects the seaweed. In such a system, seaweed does not need to be transported away from cutting device 7 after cutting, making for a simple system which can use gravity for the transport of seaweed to the collection device 1 1 .
  • Fig. 12 shows a seaweed harvesting system 1 which uses a conveyor 56 for transporting seaweed after it has been cut.
  • a system is similar to that shown in Fig. 1 , and can result in the ability to have a larger collecting device 1 1 which needs emptying less often or could even be transported to a place further away directly for storage, for example a vessel nearby for harvesting.
  • the system of Fig. 12 also includes a winch drum 58 which collects the line 13 after the seaweed has been cut from it. The line can then be transported elsewhere for use in growing additional seaweed or for other uses or can simply be stored on the winch drum 58.
  • Figs. 1 -12 include a number of different features shown in different embodiments of seaweed harvesting device 1 , but can be combined with each other in different ways than shown in the specific embodiments.
  • the spaced apart cutting device 47 of Fig. 9a could be paired with the collection device 1 1 of Fig. 1 1 and/or the spool 58 of Fig. 12.
  • Different cutting or knife arrangements can also be used with different systems depending on the specific needs associated with that system.
  • the invention further relates to a vessel comprising a seaweed harvesting system as defined above.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Environmental Sciences (AREA)
  • Harvesting Machines For Specific Crops (AREA)
  • Cultivation Of Seaweed (AREA)

Abstract

La présente invention concerne un système de récolte d'algues (1) conçu pour collecter des algues, comprenant : - une section d'admission (3) pour prélever un substrat d'algues (13) afin de cultiver des semis et/ou des algues sur la ligne d'eau, - un dispositif de transport (2) pour transporter le substrat (13) dans une direction de transport à partir de la section d'admission (3)à travers le système de récolte (1), - un dispositif de coupe (7) pour couper les algues du substrat (13), le dispositif de coupe (7) comprenant un système de pré-tension (16) pour réguler une force de coupe appliquée au substrat (13).
EP17739337.8A 2016-06-21 2017-06-20 Récolteuse d'algues Pending EP3471533A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2017021A NL2017021B1 (en) 2016-06-21 2016-06-21 Seaweed harvester
PCT/NL2017/050411 WO2017222373A1 (fr) 2016-06-21 2017-06-20 Récolteuse d'algues

Publications (1)

Publication Number Publication Date
EP3471533A1 true EP3471533A1 (fr) 2019-04-24

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP17739337.8A Pending EP3471533A1 (fr) 2016-06-21 2017-06-20 Récolteuse d'algues

Country Status (6)

Country Link
EP (1) EP3471533A1 (fr)
JP (1) JP2019520072A (fr)
CN (1) CN109310058A (fr)
BR (1) BR112018076733A2 (fr)
NL (1) NL2017021B1 (fr)
WO (1) WO2017222373A1 (fr)

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JP2997580B2 (ja) * 1991-09-13 2000-01-11 住吉重工業株式会社 糸状海藻類の洗浄装置
JP2000023535A (ja) * 1998-05-07 2000-01-25 Kugizaki:Kk 海苔異物除去法及びその装置
JP3699593B2 (ja) * 1998-07-07 2005-09-28 弘昭 杉山 洗浄装置
JP2007135429A (ja) * 2005-11-15 2007-06-07 Nippon Zenith Pipe Co Ltd 水中植生工法及び水中植生施設
EP2039236A1 (fr) * 2007-09-20 2009-03-25 Sbae Industries NV Procédé pour la collecte d'algue ou de plantes et dispositif utilisé par celui-ci
CN101263762A (zh) * 2008-04-15 2008-09-17 朱日超 船用紫菜收割机
CN201700158U (zh) * 2010-06-29 2011-01-12 何庆刚 海带收割机
KR101148865B1 (ko) * 2010-07-26 2012-05-29 삼성중공업 주식회사 해조류양식장치
MY159988A (en) 2011-08-09 2017-02-15 Sirim Berhad A device for cultivation of aquatic plant
CN103069966A (zh) 2011-10-25 2013-05-01 李德义 一种海带收割机装置
FR2996407B1 (fr) * 2012-10-09 2014-11-28 Rene Munier Systeme et procede pour cultiver des algues dans un milieu aquatique
CN105722385B (zh) * 2013-09-13 2020-08-07 Sea6能源私人有限公司 海藻养殖系统

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BR112018076733A2 (pt) 2019-03-26
JP2019520072A (ja) 2019-07-18
WO2017222373A1 (fr) 2017-12-28
CN109310058A (zh) 2019-02-05

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