FR2603332A1 - Seabed polymetallic nodule recovery process - by crushing nodules and bringing them to surface mixed with fine sediment - Google Patents

Seabed polymetallic nodule recovery process - by crushing nodules and bringing them to surface mixed with fine sediment

Info

Publication number
FR2603332A1
FR2603332A1 FR8612280A FR8612280A FR2603332A1 FR 2603332 A1 FR2603332 A1 FR 2603332A1 FR 8612280 A FR8612280 A FR 8612280A FR 8612280 A FR8612280 A FR 8612280A FR 2603332 A1 FR2603332 A1 FR 2603332A1
Authority
FR
France
Prior art keywords
nodules
sediment
crushing
bringing
recovery process
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
FR8612280A
Other languages
French (fr)
Inventor
Jean Bernard
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.)
INST FS RECH EXPL MER
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
INST FS RECH EXPL MER
Commissariat a lEnergie Atomique CEA
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 INST FS RECH EXPL MER, Commissariat a lEnergie Atomique CEA filed Critical INST FS RECH EXPL MER
Priority to FR8612280A priority Critical patent/FR2603332A1/en
Publication of FR2603332A1 publication Critical patent/FR2603332A1/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • E02F7/065—Delivery chutes or screening plants or mixing plants mounted on dredgers or excavators mounted on a floating dredger
    • 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
    • E21—EARTH DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C50/00—Obtaining minerals from underwater, not otherwise provided for

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Disintegrating Or Milling (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)

Abstract

The process consists of reducing the size of the nodules by crushing, mixing them with sea-bed sediment and water and pumping the mixture to the surface and separating the nodule granules from the sediment. The process involves using a crusher (52) which reduces the size of the modules to 10-20 mm. A sediment injector mixes the crushed nodules with up to 10-20 per cent sediment with particles measuring 1-40 microns. The crusher is in the form of two contra-rotating cylinders, while the pump carrying the material to the surface is a multi-stage piston pump. USE/ADVANTAGE - A process for bringing submarine materials, e.g. polymetallic nodules, to the surface.
FR8612280A 1986-09-01 1986-09-01 Seabed polymetallic nodule recovery process - by crushing nodules and bringing them to surface mixed with fine sediment Pending FR2603332A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8612280A FR2603332A1 (en) 1986-09-01 1986-09-01 Seabed polymetallic nodule recovery process - by crushing nodules and bringing them to surface mixed with fine sediment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8612280A FR2603332A1 (en) 1986-09-01 1986-09-01 Seabed polymetallic nodule recovery process - by crushing nodules and bringing them to surface mixed with fine sediment

Publications (1)

Publication Number Publication Date
FR2603332A1 true FR2603332A1 (en) 1988-03-04

Family

ID=9338608

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8612280A Pending FR2603332A1 (en) 1986-09-01 1986-09-01 Seabed polymetallic nodule recovery process - by crushing nodules and bringing them to surface mixed with fine sediment

Country Status (1)

Country Link
FR (1) FR2603332A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009043570A1 (en) * 2007-09-28 2009-04-09 GSan - Ökologische Gewässersanierung GmbH Underwater device carrier and apparatus for working on or investigating a water-bed
CN115739263A (en) * 2022-11-11 2023-03-07 中国海洋大学 Multi-metal nodule crushing device and method based on supercritical carbon dioxide

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3504943A (en) * 1968-10-08 1970-04-07 Bethlehem Steel Corp Deep sea nodule mining
US3522670A (en) * 1967-07-11 1970-08-04 Newport News S & D Co Apparatus for underwater mining
FR2153458A1 (en) * 1971-09-23 1973-05-04 Ihc Holland Nv
US3811730A (en) * 1971-06-01 1974-05-21 E Dane Deep sea mining system
US3894771A (en) * 1973-12-07 1975-07-15 Necham Inc Hydraulic particle separator
FR2385924A1 (en) * 1977-03-31 1978-10-27 Sandbergs N A Ing Firman REGULATED SUCTION PROCESS FOR MATERIALS IN SUSPENSION IN AIR OR IN A LIQUID
FR2419890A1 (en) * 1978-03-16 1979-10-12 Ohbayashi Corp Crusher for solids transported by pressurised liq. - has eccentric rotor within cylindrical housing, to crush solids as liq. medium passes through
DE3429202C1 (en) * 1984-08-08 1986-01-09 Preussag Ag, 3000 Hannover Und 1000 Berlin Device for picking up manganese nodules or the like from the sea floor

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3522670A (en) * 1967-07-11 1970-08-04 Newport News S & D Co Apparatus for underwater mining
US3504943A (en) * 1968-10-08 1970-04-07 Bethlehem Steel Corp Deep sea nodule mining
US3811730A (en) * 1971-06-01 1974-05-21 E Dane Deep sea mining system
FR2153458A1 (en) * 1971-09-23 1973-05-04 Ihc Holland Nv
US3894771A (en) * 1973-12-07 1975-07-15 Necham Inc Hydraulic particle separator
FR2385924A1 (en) * 1977-03-31 1978-10-27 Sandbergs N A Ing Firman REGULATED SUCTION PROCESS FOR MATERIALS IN SUSPENSION IN AIR OR IN A LIQUID
FR2419890A1 (en) * 1978-03-16 1979-10-12 Ohbayashi Corp Crusher for solids transported by pressurised liq. - has eccentric rotor within cylindrical housing, to crush solids as liq. medium passes through
DE3429202C1 (en) * 1984-08-08 1986-01-09 Preussag Ag, 3000 Hannover Und 1000 Berlin Device for picking up manganese nodules or the like from the sea floor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009043570A1 (en) * 2007-09-28 2009-04-09 GSan - Ökologische Gewässersanierung GmbH Underwater device carrier and apparatus for working on or investigating a water-bed
CN115739263A (en) * 2022-11-11 2023-03-07 中国海洋大学 Multi-metal nodule crushing device and method based on supercritical carbon dioxide
CN115739263B (en) * 2022-11-11 2023-12-26 中国海洋大学 Multi-metal nodule crushing device and method based on supercritical carbon dioxide

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