Dredging apparatus

Details Dredging apparatus Dredging apparatus

1987-09-16

1989-05-02

Novosad, Stephen J.

Mining or in situ disintegration of hard material

With separation of materials

299 9, 299 18, B03B 526, E02F 388, E02F 706

Patent

active

048262510

ABSTRACT:
A dredging platform has a water pump that creates suction in a hose for drawing loose materials from the bottom of a stream into the hose for transport to a sluice and vibratory screen. Larger stones are dropped off the end of the screen while finer sand and gold ore concentrate fall through the screen into hoppers for delivery to a centrifugal separator. The platform floats in the stream at water level to partially submerge the hoppers in order to provide a steady controlled flow of water over the hopper sides as the "fines" are collected for separation.

REFERENCES:
patent: 1611255 (1926-12-01), Sturtevant
patent: 1719442 (1929-07-01), Newsom
patent: 2174925 (1939-10-01), McKeever
patent: 3950246 (1976-04-01), Klefisch
patent: 4289355 (1981-09-01), Rose
patent: 4360424 (1982-11-01), Pearson et al.

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