Lamellar separator

Claim 1

Lamellar separator comprising a pair of upwardly extending laterally spaced side walls, a plurality of spaced upwardly oriented lamellae extending transversely between said side walls and forming, in combination with said side walls, a plurality of separator channels, said lamellae disposed obliquely to the horizontal, said side walls having first openings at their lower ends and second openings at their upper ends, said first openings forming inlet openings into each of said channels and said second openings forming outlet openings from each of said channels so that the flow passes upwardly therethrough, a sedimentation basin enclosing said side walls and lamellae and arranged in combination with said side walls and lamellae for separating light impurities such as flocks in a sewerage treatment plant, wherein the improvement comprises regulating plates positioned on said side walls in front of said outlet openings, said regulating plates being adjustable in the vertical direction to provide a uniform distribution of the total flow through said separator channels and to provide a uniform circulating pattern in the individual said channels to compensate for poor alignment of the separator, the upper ends of said lamellae extending vertically upwardly from the remaining portions extending obliquely to the horizontal for reducing the speed of the flow through the upper part of said separator channels so that flow disturbances from said regulating plates are decreased, said regulating plates having apertures therethrough arranged to be vertically adjustably aligned opposite said outlet opening in said side walls and the vertical arrangement of the upper ends of said lamellae increases the width of said separator channels so that said outlet openings in said side walls and said apertures in said regulating plates can be made as large as possible thus affording increased capacities in the lamellar separator.