Flotation apparatus for de-inking pulp suspensions

Details Flotation apparatus for de-inking pulp suspensions Flotation apparatus for de-inking pulp suspensions

1981-04-08

1982-08-31

Hill, Ralph J.

Classifying, separating, and assorting solids

Fluid suspension

Liquid

261 77, 261DIG75, 2102212, 239119, 239430, B03D 124

Patent

active

043471285

ABSTRACT:
Flotation apparatus for de-inking of pulp suspension in a flotation cell with injectors for feeding the pulp suspension into the cell and for aerating the pulp suspension. The injectors are equipped with wide slot nozzles through which the suspension flows having a ratio of cross-sectional area to periphery of between 1.5 mm and 4.0 mm. A mixing chamber receiving pulp suspension flow from the wide slot nozzles is provided having a cross-sectional area which is between 1.3 to 1.7 times the cross-sectional area of the wide slot nozzles.

REFERENCES:
patent: 1429415 (1922-09-01), Evans
patent: 2140903 (1938-12-01), Fisk
patent: 2562096 (1951-07-01), Herrmann
patent: 3371618 (1968-05-01), Chambers
patent: 3752398 (1973-08-01), Svensson

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