Patent ID: 7204636
Filing Date: 2007-04-17
Classification: B01F,F26B

Abstract:
1. A rotary blending, cooling, and screening drum for effecting the processing of granular product, comprising a rotary drum configured for slow speed rotation, said rotary drum having a cylindrical body formed of at least three segments, and an exit segment, the first segment being an intake segment provided for the intake of the granular product, the intake segment including a first series of helically arranged integral vanes for moving the granular product longitudinally along, a second segment, said second segment being a blending segment provided for blending the granular product, said second segment including a series of lifts, for lifting the granular product to achieve its mixing and reduction in size, and cooling therein, a third segment, said third segment comprising a discharge segment, said third segment including a plurality of screens, operatively associated with discharge ports within the cylindrical body at that location, and configured to provide for selective discharge of screened portions of the granular product, and said third segment further including an inner cylinder, said inner cylinder being of substantially lesser diameter than the diameter of the third segment, said inner cylinder extending approximately the length of the said third segment, and said inner cylinder allowing for passage of counter flowing air from the exit segment through the first and second segments of the rotary drum to attain cooling of the granular product as processed and passing therethrough.