Classifying – separating – and assorting solids – Treatment subsequent
Patent
1979-07-11
1981-06-09
Cuchlinski, Jr., William A.
Classifying, separating, and assorting solids
Treatment subsequent
209 17, 209464, 209501, B03B 528
Patent
active
042723639
ABSTRACT:
An apparatus for separating relatively heavy particles, such as rock, from relatively light particles, such as coal, in a liquid, such as water, of lesser specific gravity than either the heavier or the lighter particles, comprising an upwardly inclined trough and auger driven to move particles upward in the trough, means for feeding a mixture of the heavier and lighter particles into the trough, a liquid dispensing means above the feed means for discharging liquid down the trough to create turbulent flow, and a weir forming a pool in the lower end of the trough.
The invention further comprises an auger having an upper end which is spaced below the upper end of the trough to provide a space for the accumulation of heavy particles at the upper end of the trough to facilitate dewatering of the heavy particles before discharge from the upper end of the trough.
The invention is further characterized by a recirculation system in which liquid containing lighter particle fines are separated from the major portion of the lighter particles and recirculated in varying densities through the liquid dispensing means.
REFERENCES:
patent: 2368416 (1945-01-01), Holt
patent: 3154805 (1964-11-01), Egee et al.
patent: 3645397 (1972-02-01), Weiss
patent: 3695427 (1972-10-01), Friesz
patent: 3739911 (1973-06-01), Patch
Cuchlinski Jr. William A.
Lackey Harrington A.
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