Dredge head with mechanical and pumping action

Details Dredge head with mechanical and pumping action Dredge head with mechanical and pumping action

1978-10-30

1982-01-19

Pate, III, William F.

Mining or in situ disintegration of hard material

With separation of materials

Separation below surface of earth or water

37DIG8, E02F 500

Patent

active

043113427

ABSTRACT:
This invention provides dredge means for obtaining ore and other particular material from the ocean floor. The dredge head utilizes a combination of hydrodynamic, pumping, effects plus mechanical dislodging and carrying means. Specifically, the dredge head comprises a powered rotating drum having radially extending tines partially surrounded by a shroud. The shroud diverges from the drum surface, so that it is nearest the drum surface at its forward and lowermost end and farthest from the drum at its rearward and uppermost end. Particles of ore collected by the rotating drum are conveyed to means for carrying the ore to the ocean surface. The hydrodynamic effects of the dredge head include a venturi effect at the inlet, a centrifugal pumping effect and a so-called Magnus effect.

REFERENCES:
patent: 3588174 (1971-06-01), Rossfeld
patent: 4010560 (1977-03-01), Diggs
patent: 4035022 (1977-07-01), Hahlbrock et al.
patent: 4037874 (1977-07-01), Willums
patent: 4053181 (1971-10-01), Saito
patent: 4147390 (1979-04-01), Deliege et al.

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