Flotation process and mixing device

Details Flotation process and mixing device Flotation process and mixing device

1997-04-15

2000-10-10

Lithgow, Thomas M.

Classifying, separating, and assorting solids

Fluid suspension

Liquid

209170, 162 4, 2102212, 210703, B03D 124, B03D 114

Patent

active

061292125

ABSTRACT:
The flotation process for separating particulate impurities from fibrous suspensions in a flotation tank. Upon or after entry into the flotation tank, the fibrous suspension added to the flotation tank may be mixed with a portion of the suspension already in the flotation tank. The portion of the suspension already in the flotation tank may be drawn into the added suspension. After mixing, the mixed suspensions enter a mixing element. The mixed suspension is expelled into the flotation tank and a circular flow pattern is generated within the flotation tank as a result. A flow speed may be limited at a top end so that an optimal mixing with the gas bubbles required for flotation may occur with a desired energy savings.

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