Equipment for extracting ores from sea beds

Mining or in situ disintegration of hard material – With separation of materials – Separation below surface of earth or water

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299 9, 37DIG8, E02F 700, E02F 500

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active

046857427

ABSTRACT:
Apparatus for extracting ores from the sea bed, comprising a surface ship (1) supplying the power required for the operation of the under-water assembly and for storing the ore, a relay unit (30) connected to the ship (1) by a conduit (3, 4) for raising the ore and including ore storage, sorting and intermediate washing facilities and means for raising the ore, and vehicles (50) for travelling along the sea bottom (2) and each comprising a propulsion system and an ore pick up, washing and treating system. The apparatus also comprises an intermediate under-water station (20) interposed between the surface ship (1) and the relay unit (30) and immersed at a predetermined depth below the level of the water, so as to be always unaffected by the swell. The invention is applicable to the picking up of polymetallic nodules at great depth.

REFERENCES:
patent: 3971593 (1976-07-01), Porte et al.
patent: 3975054 (1976-08-01), Brockett, III et al.
patent: 4030216 (1977-06-01), Willums
patent: 4040667 (1977-08-01), Tax et al.
patent: 4070061 (1978-01-01), Obolensky
patent: 4232903 (1980-11-01), Welling et al.
patent: 4368923 (1983-01-01), Handa et al.
patent: 4503629 (1985-03-01), Uchida
Mero, John L., "Economics of Deep-Sea Mining", 9/1961.

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