WO2014157118A1 - 海底資源リフト装置 - Google Patents
海底資源リフト装置 Download PDFInfo
- Publication number
- WO2014157118A1 WO2014157118A1 PCT/JP2014/058141 JP2014058141W WO2014157118A1 WO 2014157118 A1 WO2014157118 A1 WO 2014157118A1 JP 2014058141 W JP2014058141 W JP 2014058141W WO 2014157118 A1 WO2014157118 A1 WO 2014157118A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hose
- seabed
- resource
- suction chamber
- transfer hose
- Prior art date
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- 239000013535 sea water Substances 0.000 claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 43
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 32
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910001882 dioxygen Inorganic materials 0.000 claims abstract description 28
- 238000011084 recovery Methods 0.000 claims abstract description 17
- 239000007789 gas Substances 0.000 claims abstract description 14
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 9
- 238000002347 injection Methods 0.000 claims abstract description 8
- 239000007924 injection Substances 0.000 claims abstract description 8
- 230000005611 electricity Effects 0.000 claims abstract description 5
- 150000002910 rare earth metals Chemical class 0.000 claims description 6
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 5
- 230000000630 rising effect Effects 0.000 description 13
- 238000005086 pumping Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000005868 electrolysis reaction Methods 0.000 description 5
- 239000008151 electrolyte solution Substances 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 235000010755 mineral Nutrition 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- -1 hydroxide ions Chemical class 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 238000005339 levitation Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 235000011118 potassium hydroxide Nutrition 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/8858—Submerged units
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/006—Dredgers or soil-shifting machines for special purposes adapted for working ground under water not otherwise provided for
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F7/00—Equipment for conveying or separating excavated material
- E02F7/005—Equipment for conveying or separating excavated material conveying material from the underwater bottom
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F7/00—Equipment for conveying or separating excavated material
- E02F7/06—Delivery chutes or screening plants or mixing plants mounted on dredgers or excavators
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F7/00—Equipment for conveying or separating excavated material
- E02F7/10—Pipelines for conveying excavated materials
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C50/00—Obtaining minerals from underwater, not otherwise provided for
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
Definitions
- the present invention relates to a submarine resource lift device, and more particularly to a submarine resource lift device that can float a rare earth with a transfer hose even on a deep sea floor exceeding a depth of 5000 m.
- the deep sea over 5000m depth is about 500 atmospheres (500kgf / cm 2 ), that is, about 50Mpa high pressure, and the total weight of the riser pipe that extends to the sea floor becomes large. Taking samples was the limit and it was difficult to mine on a commercial basis.
- Patent Document 1 proposes a pumping device that can pump minerals from the seabed.
- This pumping equipment includes a transfer pipe for pumping ore that transfers seawater containing minerals from the seabed to a marine base, a transfer pipe for returning seawater from the seabase to the seabed, a circulation pump that feeds seawater to the transfer pipe, It consists of a submersible pump that sucks seawater containing minerals from the suction port into the transfer pipe for uplifting and a water turbine that drives the submersible pump using seawater flowing through the circulation transfer pipe as a power source.
- This pumping device is said to be applied at a water depth of 500-2000m. In order to recover mud containing minerals from the deep sea where the water depth exceeds 5000 m, a long and heavy pipe is hung and a powerful pump is required to push the seawater from the depth of 5000 m, which has not been realized yet.
- the present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a submarine resource lift device capable of floating mud containing rare earth from a deep sea exceeding a depth of 5000 m. There is to do.
- a seabed resource lift device includes a transfer hose comprising a first hose and a second hose suspended from a resource recovery ship, a first suction chamber for sending seabed mud to the first hose, and seabed mud.
- a crawler-type collector provided with a second suction chamber for feeding water into the second hose, and an electrolyzer for water that generates hydrogen gas and oxygen gas by electrolyzing water by power supply from the resource recovery ship;
- a gas injection device for injecting the generated hydrogen gas and the oxygen gas into the first suction chamber and the second suction chamber, respectively, and mud containing rare earth is generated by buoyancy of hydrogen gas or oxygen gas. It is characterized by floating with seawater.
- the transfer hose is characterized in that annular ribs are provided at regular intervals along the axial direction of the inner wall.
- the transfer hose is made of insulating soft vinyl chloride and has a conductive wire embedded therein.
- the resource recovery ship recovers hydrogen gas and oxygen gas from the transfer hose, generates electricity by reacting them, and is used as a part of power supplied to the water electrolyzer.
- the transfer hose is equipped with a bubble crusher equipped with rotating blades that are driven by an upward flow and rotate in opposite directions.
- the transfer hose 4 is composed of an inner pipe and an outer pipe, and a seawater drawing device is attached to increase the flow velocity of the inner pipe to lower the pressure and draw external seawater from between the inner pipe and the outer pipe. It is characterized by that.
- an electrolyzer for water is installed on the seabed, and water is electrolyzed by power supply from a resource recovery ship to generate hydrogen gas and oxygen gas. Is sent to the first suction chamber and the second suction chamber where the mud on the seabed of the crawler type collector is collected, and the transfer hoses of the first hose and the second hose are raised from there. Due to buoyancy, mud containing rare earths (rare earth elements) can be levitated with seawater and recovered.
- the inner wall of the transfer hose is provided with annular ribs at regular intervals along the axial direction, it becomes a resistance when hydrogen gas or oxygen gas rises in the transfer hose, and the total weight of the transfer hose can be reduced.
- the transfer hose is made of soft vinyl chloride having an insulating property, and a conductive wire is embedded inside, so that the strength of the transfer hose can be improved. Moreover, electric power can be supplied from the marine resource recovery ship to the water electrolyzer installed on the sea floor using this wire. In that case, the outgoing line and the return line to the water electrolyzer can be shared by wires embedded in the first hose and the second hose.
- the hydrogen gas and oxygen gas in the transfer hose can be collected and reacted to generate electricity and be used as part of the power supplied to the water electrolyzer.
- the transfer hose is equipped with a seawater drawing device, external seawater can be drawn into the transfer hose. Even if the bubbles expand as the bubbles rise, it is possible to increase the seawater, maintain the proportion of seawater containing bubbles and mud, and prevent the bubbles from increasing.
- Example 1 It is sectional drawing of the transfer hose of FIG. It is explanatory drawing of the electrolysis apparatus of the water of FIG. It is explanatory drawing which shows the inside of the crawler type collector of FIG. It is explanatory drawing of the bubble crushing apparatus attached to a transfer hose. It is explanatory drawing of the seawater drawing-in apparatus attached to a transfer hose. It is a flowchart which shows operation
- FIG. 1 is a configuration diagram of a submarine resource lift device 100 according to the present invention.
- a resource recovery ship 1 On the sea, a resource recovery ship 1, a barge ship 2 and a tugboat 3 are prepared.
- the tugboat 3 tows the barge 2.
- the barge 2 is equipped with a separator 6 for separating mud from seawater containing mud.
- the supernatant of the separation tank of the separator 6 is returned to the sea.
- the submarine resource lift device 100 is attached to the transfer hose 4 including the first hose 4a and the second hose 4b suspended from the resource recovery ship 1 and the tip of the transfer hose 4, and collects and sucks mud 13 on the seabed.
- a self-propelled crawler type collector 7 that feeds into the chamber 8 is provided.
- the crawler type collector 7 includes a water electrolyzer 9 that performs electrolysis of water to generate hydrogen and oxygen, and a gas injection device 10 that injects the generated hydrogen gas and oxygen gas into the suction chamber 8. It is done.
- the gas injection device 10 includes a high-pressure pump 23 and a nozzle 22 that injects hydrogen gas or oxygen gas.
- the suction chamber 8 of the crawler type collector 7 is connected to the transfer hose 4, and serves as a place where the seabed resources are collected and collected and sent to the transfer hose 4.
- FIG. 2 is a sectional view of the transfer hose 4 of FIG.
- the transfer hose 4 is provided with annular ribs 15 at regular intervals along the axial direction of the inner wall.
- the transfer hose 4 is made of soft vinyl chloride having insulating properties, and a conductive wire 14 is embedded in a mesh shape inside. Since the wire 14 is embedded, power can be supplied to the crawler-type collector 7, the water electrolyzer 9, and the gas injector 10 on the seabed. For example, when power is supplied with two DC power supply lines, two transfer hoses 4 are used. When the transfer hose 4 is made of soft vinyl chloride, the transfer hose 4 may be dented by deep sea pressure.
- the outer diameter of the transfer hose 4 is not limited to this, but can be 10 to 20 cm.
- FIG. 3 is an explanatory view of the water electrolyzer 9 of FIG.
- the water electrolyzer 9 electrolyzes water in the electrolytic cell 11 to generate hydrogen and oxygen in a ratio of 2: 1.
- An electrolytic solution 12 is formed by adding an electrolyte of sodium hydroxide or caustic potash to the electrolytic cell 11 so that electricity can be easily conducted.
- the electrolytic cell 11 is divided into two chambers by a diaphragm 19 through which the electrolytic solution 12 can pass. Electrolysis is performed by installing an anode 17 on one side and a cathode 18 on the other side. At the cathode 18, electrons (e ⁇ ) react with water (H 2 O) to generate hydrogen (H 2 ).
- the reaction formula is shown below.
- Equation 2 2OH ⁇ ⁇ H 2 O + 1/2 (O 2 ) + 2e ⁇ (Hydroxide ion) (water) (oxygen) (electron)
- FIG. 4 is an explanatory diagram showing the inside of the crawler-type collector 7.
- the suction chamber 8 includes a first suction chamber 8a and a second suction chamber 8b.
- the hydrogen gas 20 and the oxygen gas 21 generated by the water electrolyzer 9 are jetted at a pressure of 500 atm or higher when the seabed is 5000 m.
- the hydrogen gas 20 and the oxygen gas 21 are gases that do not liquefy even when subjected to a water temperature of 1.5 degrees and a water pressure of 500 atmospheres. Therefore, the gas becomes bubbles and floats inside the transfer hose 4 composed of the first hose 4a and the second hose 4b by buoyancy.
- the seawater 5 including the mud 13 also rises as the bubbles rise.
- the first suction chamber 8a and the second suction chamber 8b were provided, and the hydrogen gas 20 and the oxygen gas 21 were injected separately. Even if the mixed gas is used, it will not burn unless it is ignited at a high temperature of about 570 degrees, but this is to prevent the hydrogen gas 20 from burning with the oxygen gas 21.
- the bubble radius r1 at the seabed is r2 and the bubble radius r2 at the sea is r2
- the bubble volume V1 at the seabed is (4/3) ⁇ (r1) 3
- the bubble radius (r1) at the seabed is 1 mm
- the bubble radius (r2) at the sea is calculated as 8 mm. If the bubble radius (r1) at the seabed is 6 mm, the bubble radius (r2) at the sea is 48 mm (96 mm in diameter). Note that the diameter of the transfer hose 4 may be increased stepwise from the seabed toward the seaside, paying attention to the proportion of seawater containing bubbles and mud. Moreover, it is desirable that the bubbles ejected from the nozzle 22 on the seabed be ejected at an appropriate size.
- ⁇ is the density of water, 1000 kg / m 3
- g is the acceleration of gravity, 9.8 m / s 2
- V is the bubble volume (m 3 ).
- F1 2.1 ⁇ 10 ⁇ 2 (kg ⁇ m / s 2 )
- F2 4.62 (kg ⁇ m / s 2 ).
- S is the projected area of the bubble, expressed as ⁇ r 2
- ⁇ is the density of water, 1000 kg / m 3
- U is the bubble rising speed (m / s). It is assumed that this resistance R and the above-described buoyancy F are balanced.
- FIG. 5 is an explanatory diagram of the bubble crusher 30 attached to the transfer hose 4.
- the bubble crushing device 30 includes rotating blades 31 and 31 that rotate in the opposite direction to the flow.
- the rotor blades 31, 31 are driven by seawater and air bubbles containing rising mud.
- the bubbles of the hydrogen gas 20 having a relatively large size are sandwiched between the rotary blades 31 and 31 and subdivided into small bubbles.
- the bubbles stay on the rib 15 on the inner wall of the transfer hose 4 and may merge with bubbles that have risen later, resulting in larger bubbles.
- larger bubbles have a higher buoyancy, they rise faster, so they may hit smaller bubbles that rise slowly, resulting in larger bubbles.
- bubble crushing device 30 By providing the bubble crushing device 30, large bubbles can be reduced so that the bubbles do not occupy the interior of the transfer hose 4. As described above, small bubbles have a lower rising speed than large bubbles. Making the bubbles finer suppresses the rising speed of seawater. Even if the bubbles are crushed, for example, the total volume of bubbles occupying a certain length of the transfer hose 4 does not change.
- FIG. 6 is an explanatory diagram of the seawater retraction device 40 attached to the transfer hose 4.
- the seawater drawing device 40 includes an inner pipe 41 and an outer pipe 42, and draws external seawater from between the inner pipe 41 and the outer pipe 42.
- the upper part of the inner pipe 41 is made smaller in diameter to increase the rising speed of seawater containing bubbles and mud and to reduce the internal pressure. If the amount of bubbles is small, the seawater containing mud cannot be driven, but if the number of bubbles in the transfer hose 4 on the seabed side is increased, the bubbles expand as they go to the seaside, and the flow rate of the seawater containing mud is increased.
- the transfer hose 4 is provided with the seawater drawing device 40, and the seawater is drawn in so that the ratio of the seawater to the bubbles is not greatly changed even if the volume of the bubbles is increased. According to the seawater retractor 40, the flow rate can be adjusted.
- the upper transfer hose 4 and the lower transfer hose 4 of the seawater retraction device 40 have the same outer diameter, but even if the outer diameter of the upper transfer hose 4 is larger than the outer diameter of the lower transfer hose 4. Good.
- FIG. 7 is a flowchart showing the operation of the submarine resource lift device 100 according to the present invention.
- S ⁇ b> 1 is an operation of connecting the crawler-type collector 7 equipped with the water electrolyzer 9 and the gas injection device 10 to one end of the two transfer hoses 4 and dropping it from the resource recovery ship 1.
- S ⁇ b> 2 is an operation of generating hydrogen gas 20 and oxygen gas 21 by the water electrolysis apparatus 9. Electric power is supplied from the resource recovery ship 1 by two transfer hoses 4a and 4b.
- S3 is an operation of injecting the hydrogen gas 20 and the oxygen gas 21 at high pressures, that is, higher than the water pressure in the deep sea, into the first suction chamber 8a and the second suction chamber 8b by the gas injection device 10, respectively.
- S4 is an operation in which the mud 13 containing rare earth is collected together with the seawater 5 in the resource recovery ship 1, and the hydrogen gas 20 and the oxygen gas 21 are recovered and reacted to generate power.
- the electric power obtained by power generation can be used as part of the electric power sent to the water electrolyzer 9.
- S ⁇ b> 5 is an operation for pumping out mud 13 and seawater 5 and sending them out to the separator 6 of the barge 2 by the pump 16.
- S6 is an operation for separating the mud 13 and the seawater 5 in the separation tank of the separator 6.
- the present invention is suitable as a submarine resource lift device capable of recovering mud containing rare earth on the seabed.
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
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Abstract
Description
2H2O + 2e- ⇒ H2 + 2OH-
(水) (電子) (水素) (水酸化物イオン)
2OH- ⇒ H2O + 1/2(O2) +2e-
(水酸化物イオン) (水) (酸素) (電子)
2 バージ船
3 タグボート
4 移送ホース
4a 第1ホース
4b 第2ホース
5 海水
6 セパレータ
7 クローラ型収集機
8 吸い込み室
8a 第1吸い込み室
8b 第2吸い込み室
9 水の電気分解装置
10 ガス噴射装置
11 電解槽
12 電解液
13 泥
14 ワイヤ
15 リブ
16 汲み出しポンプ
17 陽極
18 陰極
19 隔膜
20 水素ガス
21 酸素ガス
22 ノズル
23 高圧ポンプ
30 気泡砕き装置
31 回転翼
40 海水引込み装置
41 内管
42 外管
100 海底資源リフト装置
Claims (6)
- 資源回収船から海底に吊り下ろされる第1ホースと第2ホースからなる移送ホースと、
海底の泥を前記第1ホースに送り込む第1吸い込み室と、海底の泥を前記第2ホースに送り込む第2吸い込み室が設けられたクローラ型収集機と、
前記資源回収船からの給電により水の電気分解を行なって水素ガスと酸素ガスを生成する水の電気分解装置と、
生成された前記水素ガスと前記酸素ガスをそれぞれ前記第1吸い込み室と前記第2吸い込み室に噴射するガス噴射装置と、が備えられ、
水素ガス又は酸素ガスの浮力により、レアアースを含む泥を海水と共に浮上させることを特徴とする海底資源リフト装置。
- 前記移送ホースは、内壁の軸方向に沿って一定間隔で環状のリブが設けられることを特徴とする請求項1に記載の海底資源リフト装置。
- 前記移送ホースは、絶縁性を有する軟質塩化ビニールからなり、内部に通電性のワイヤが埋め込まれていることを特徴とする請求項1に記載の海底資源リフト装置。
- 前記資源回収船は、前記移送ホースから水素ガスと酸素ガスを回収し、これらを反応させることによって発電を行ない、前記水の電気分解装置に給電される電力の一部として利用されることを特徴とする請求項1に記載の海底資源リフト装置。
- 前記移送ホースには、上昇流により駆動され互いに反対方向に回転する回転翼を備えた気泡砕き装置が取り付けられることを特徴とする請求項1に記載の海底資源リフト装置。
- 前記移送ホース4には、内管と外管から構成され、前記内管の流速を速めて圧力を低下させ、前記内管と前記外管の間から外部の海水を引き込む海水引込み装置が取り付けられることを特徴とする請求項1に記載の海底資源リフト装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2014245928A AU2014245928B2 (en) | 2013-03-28 | 2014-03-24 | Seabed resource lifting device |
US14/777,729 US9567727B2 (en) | 2013-03-28 | 2014-03-24 | Seabed resource lifting device |
CN201480018611.7A CN105164371B (zh) | 2013-03-28 | 2014-03-24 | 海底资源举升装置 |
EP14774354.6A EP2980352B1 (en) | 2013-03-28 | 2014-03-24 | Seabed resource lifting device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013-069042 | 2013-03-28 | ||
JP2013069042A JP5403473B1 (ja) | 2013-03-28 | 2013-03-28 | 海底資源リフト装置 |
Publications (1)
Publication Number | Publication Date |
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WO2014157118A1 true WO2014157118A1 (ja) | 2014-10-02 |
Family
ID=50112438
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2014/058141 WO2014157118A1 (ja) | 2013-03-28 | 2014-03-24 | 海底資源リフト装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US9567727B2 (ja) |
EP (1) | EP2980352B1 (ja) |
JP (1) | JP5403473B1 (ja) |
CN (1) | CN105164371B (ja) |
AU (1) | AU2014245928B2 (ja) |
WO (1) | WO2014157118A1 (ja) |
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JP2017066850A (ja) * | 2015-03-07 | 2017-04-06 | 小平アソシエイツ株式会社 | 海底資源揚収装置 |
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Also Published As
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JP2015045120A (ja) | 2015-03-12 |
US9567727B2 (en) | 2017-02-14 |
EP2980352A4 (en) | 2016-11-16 |
AU2014245928B2 (en) | 2017-11-23 |
EP2980352A1 (en) | 2016-02-03 |
JP5403473B1 (ja) | 2014-01-29 |
CN105164371B (zh) | 2017-11-17 |
CN105164371A (zh) | 2015-12-16 |
AU2014245928A1 (en) | 2015-10-15 |
EP2980352B1 (en) | 2023-02-15 |
US20160289917A1 (en) | 2016-10-06 |
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