Impeller system and method for enhanced-flow pumping of liquids

Agitating – Stirrer within stationary mixing chamber – Pump type

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Details

3661551, 4152112, B01F 512

Patent

active

055118810

ABSTRACT:
A rotatably driveable enhanced-flow impeller system is provided for pumping at least one liquid in a tank through an outlet port thereof. A radial flow impeller has a first impeller face disposed proximate the bottom of the tank and proximate or extending into an inlet port for liquids in the tank bottom. The radial flow impeller has a plurality of blades with radially outermost blade tips terminating along a blade terminating circle. Disposed adjacent a second opposing face of the radial flow impeller is a radial flow extension plate which preferably extends radially outwardly along the second face by a radial distance beyond the blade terminating circle. The radial flow extension plate may be fixedly attached to the second impeller face. The enhanced-flow impeller system can be used advantageously in conjunction with an axial flow impeller disposed on a common drive shaft in an upper portion of the tank, to form with enhanced effectiveness a liquid--liquid dispersion as droplets of at least one liquid in at least one other immiscible liquid and to distribute the dispersion uniformly through the tank volume during a dispersion residence time in the tank.

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