Abstract

A sugarcane pith and rind separation unit comprising a power driven rind gripping roll, a power driven pith milling roll in close spaced relation, said rolls having surface indentation and being driven at such rotational speeds so as to accept incoming longitudinally split sugarcane stalk halves, flatten them, and mill out the pith away from the rind, and a pith deflecting plate or shroud positioned at the output of the two rolls, said plate having shaped surfaces for causing the rind and pith to travel further on separate paths and having, adjacent the leading edge and closely positioned in the output side of the pinch between the rolls, an elongated cylindrical roller of relatively small diameter and adapted to be driven at a rotational speed such as to effectively move any fibrous material that might cause clogging and binding out of the confined region between the rolls and the deflecting plate and pass to the output. In the preferred embodiment, the roller has formed on its surface, a series of elongated grooves defining sharp gear-like teeth inclined in the rotation direction and effective to cut, shred, break-up, and move the said fibrous material.