Ergon, Inc.

Donald C Selles

Marc C Lauderdale

Pulverizer apparatus is provided for pulverizing solid materials into very fine particles. A cylindrical shell member within the pulverizer housing devides the interior of the housing into central and outer chambers therebetween. A cap disposed above a frusto-conical upper portion of the shell includes a bottom portion closing off the top of the shell and a downwardly depending frusto-conical portion. The latter is mounted in spaced, at least partially overlapping relationship with the upper portion of the shell so as to define a downwardly inclined passageway which opens into the outer chamber. A nozzle assembly, located near the bottom of the housing, produces a plurality of jets of air directed radially inwardly towards the center of the central chamber at an angle such that particles of a material located at the bottom of the central chamber are caused to rise and to impact upon each other so as to provide pulverization thereof. The particles reaching the bottom of the cap are caused to travel downwardly along the passageway and to exit into the outer chamber whereat lighter particles rise in the outer chamber and exit through the housing outlet and heavier particles drop down within the outer chamber for recirculation.

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Brandon, MS, United States of America

Donald C Selles