WSI - Surface Skimmer System

The skimmer system is powered by a helical worm gear motor that is VFD controlled.  This allows the operator to have precise control over the speed at which the paddle skims across the top layer of the DAF. This is important as to not disrupt the gentle nature of the sludge blanket that is formed in the floatation zone of the DAF.  The paddle is the width of the DAF body and gently pushes the skimmed sludge up a stainless steel beach and into a collection hopper.  The ends of the stainless steel paddles are supported by UHMW blocks which ride on internal rails. This allows the paddles to interface the sludge blanket at a consistent elevation along the length of the DAF and gently collect the thickened sludge, pushing it into the sludge hopper.