Method and apparatus for the flotation of dispersions

Details Method and apparatus for the flotation of dispersions Method and apparatus for the flotation of dispersions

1985-10-23

1988-02-02

Bashore, S. Leon

Classifying, separating, and assorting solids

Fluid suspension

Liquid

209170, 2102212, 261DIG75, 162 55, B03D 124

Patent

active

047227842

ABSTRACT:
In deinking, the flotation of fiber suspensions is performed in a cylindrical tank 2 to which the fiber suspension is fed through a coupling means 36 as primary stream. The fiber suspension is already aerated and is withdrawn through a suction connection 33 below the coupling means 36 and fed after another aeration through a secondary connection 35 above the coupling means. The volume of the circulated secondary stream is greater than the volume of the primary stream. It is thereby assured that the fiber suspension is aerated at least twice and thus better cleaned.

REFERENCES:
patent: 1374447 (1921-04-01), Granawalt
patent: 3846299 (1974-11-01), Krasnoft
patent: 3870635 (1975-03-01), Clarke-Pownder
patent: 4157952 (1979-06-01), Krofta
patent: 4247391 (1981-01-01), Lloyd
patent: 4331534 (1982-05-01), Barnscheidt
patent: 4347127 (1982-08-01), Duttera et al.
patent: 4347128 (1982-08-01), Barnscheidt
patent: 4436617 (1984-03-01), Moore et al.

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