Patent ID: 6405405
Filing Date: 2002-06-18
Classification: B07B

Abstract:
A product cleaner for separating fines and/or foreign matter from dry, free-flowing, granular product, said product cleaner comprising:a housing; a charging hopper; a discharge for conducting said granular material from said product cleaner, said discharge disposed beneath said charging hopper; an air inlet manifold; an air outlet manifold, said air outlet manifold being spaced apart from said air inlet manifold; and a separation plenum formed by said spaced apart air inlet and air outlet manifolds, said manifolds extending vertically downwardly from said charging hopper to said discharge, said separation plenum adapted to communicate with said charging hopper and said discharge to thereby conduct product from said charging hopper downwardly to said discharge, said air inlet manifold comprising a plurality of air inlets and said air outlet manifold comprising a plurality of air outlets and wherein at least one of said air outlets of said air outlet manifold comprises a damper movable between open and constricted positions so that the airflow therethrough can be controlled.