Liquid purification or separation – Diverse distinct separators – With baffle perpendicular to flow direction
Patent
1986-02-18
1988-02-02
Sever, Frank
Liquid purification or separation
Diverse distinct separators
With baffle perpendicular to flow direction
209208, 210525, B01D 3500
Patent
active
047227915
ABSTRACT:
The improved methods of the present invention function to detackify, float, substantially concentrate, separate, and remove such floating solid materials comprising paint solids from the surface of a volume of spray booth liquid, generally comprising water. In some embodiments, the method may be practiced using apparatus functing in two stages. In other embodiments, a single stage may be utilized. In the first or preliminary concentration stage, the apparatus is directed to a treatment volume that is disposed adjacent an untreated volume of liquid. An entry means is disposed therebetween for flow of the surface portion of the untreated volume thereover. A baffle is disposed across the treatment volume and extends to a depth beneath the surface to permit the flow of the liquid thereunder, but to entrain the flow of solid paint materials and to channel the flow of solid materials into a take-off chamber over a take-off weir. In the second stage of the detackifying, floating, concentrating, separating, removing apparatus useful to practice the present invention, an influent flow of solid containing liquid is provided with a paint detackifier additive and a paint coagulant additive to effect floatation. Next, the influent flow is directed horizontally across and near the surface thereof to accumulate a sludge on the surface of the volume. The accumulated sludge is then removed from the surface, and effluent is withdrawn from the bottom portion of the treatment volume, and returned to the source, such as a spray booth header.
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Sever Frank
Ward Robert M.
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