Patent ID: 6763947
Filing Date: 2004-07-20
Classification: B03D

Abstract:
A flotation separation apparatus for separating and classifying diverse, liquid-suspended solids, said flotation separation apparatus comprising a first chamber and a second chamber stacked below said first chamber in fluid communication with said first chamber, the improvement comprising:(a) a first set of a plurality of high volume air bubble infusers spaced in said first chamber; and, (b) a second set of a plurality of unique high volume air bubble infusers spaced in said second chamber wherein each unique high volume air bubble infuser comprises: (i) a structure having formed centrally in a top surface thereof a circular cavity defining an interior circumferential wall and centrally in a bottom surface parallel to said top surface a bubble-water discharge outlet coaxial with an axis of said circular cavity; (ii) a lid member secured to said top surface of said structure; (iii) a water inlet port formed in said circular cavity for injecting a water stream into said circular cavity offset from said axis and perpendicular to said axis; (iv) an air inlet port formed in said circular cavity for injecting an air stream into said water stream at an acute angle; and, (v) a plurality of stationary impinging plates projecting from said interior circumferential wall into said circular cavity and spaced circumferentially in series therealong.