Vibrating trough tobacco separator and classifier.

摘要

© A method and apparatus are disclosed for the separation and classification of tobacco into two fractions, e.g., into heavies and lights. A stream of fluid is employed to produce a stratified bed (52) of the tobacco, preferably in cooperation with vibration of the tobacco, in which the tobacco is supported by the fluid and is stratified as a function of particle size, density and weight. The stream entrains the lighter tobacco particles located at the top of the stratified bed and removes them to a suitable receptacle (41), where they are received and collected.