Method of transporting flowable media of changing consistencies

Details Method of transporting flowable media of changing consistencies Method of transporting flowable media of changing consistencies

1980-04-17

1982-06-15

Crowder, Clifford D.

Excavating

Processes

37DIG8, 406 14, 406197, 417 43, E02F 388

Patent

active

043343708

ABSTRACT:
An arrangement for directly transporting manganese nodules obtained in ocean bottom mining, entrained in carrier water, to a ship includes a riser conduit and a submersible motor-pump arrangement located at the ocean bottom and discharging into the riser conduit in continuous operation. The motor-pump arrangement is so designed and operated that the highest possible pressure reduction therein due to changing consistency of the respective flowable medium minus the pressure differential along the characteristic curve of the pump arrangement at most equals, for all operating points along a characteristic control line, the pressure differential between a continuous operating point and the lowest pressure of the corresponding characteristic curve of the riser conduit at the operating limit.

REFERENCES:
patent: 3226854 (1966-01-01), Mero
patent: 3514217 (1970-05-01), Reiss

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