Method and apparatus of stratification with tangential feed

Details Method and apparatus of stratification with tangential feed Method and apparatus of stratification with tangential feed

1976-07-22

1978-01-31

Lutter, Frank W.

Classifying, separating, and assorting solids

Plural, diverse separating operations

Sifting and stratifying

209457, 209497, B03B 520

Patent

active

040714403

ABSTRACT:
Method of separation of a mixture of mineral grains with differentiated sific gravity, under the conditions of a restricted sedimentation, in a cylindrical device, consists therein that the mixture A of the mineral with water is radially supplied to a trough 2 formed around the upper edge of the wall 1 of the water box. The mineral circulating in the trough 2 is desludged and partially separated according to the weight of the grains, and then, under pulsating action of the water, is displaced in a ring-shaped working trough along spiral trajectories towards the conduit 17 and 19 taking out the light fraction D and towards the conduits with a flap 16 for discharge of the heavy fraction C. The pulsating motion of the water is effected by compressed air being cyclically fed to the ring-shaped air chamber 6 via the pulsation valves 14 from a ring-shaped tank 5 arranged around the water box. From the air chamber 6 additional air chambers 7 extend radially beneath the sieve deck 7.

REFERENCES:
patent: 128628 (1872-07-01), Hungerford
patent: 2134154 (1938-10-01), Smith
patent: 2199091 (1940-04-01), Pardee
patent: 3273714 (1966-09-01), Cleaveland
patent: 3519130 (1970-07-01), Jachna
patent: 3674144 (1972-07-01), Muller et al.
patent: 3773176 (1973-11-01), Loughner
patent: 3844414 (1974-10-01), Jordison

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