Patent ID: 8844847
Filing Date: 2014-09-30
Classification: B01D,B01F,B02C,B07B,B09B,C02F,F26B

Abstract:
1. A feed material processing apparatus comprising: a chamber; at least one inlet in flow communication to an upper region of the chamber for receiving feed material; at least one outlet in flow communication to a lower region of the chamber for collecting processed feed material; a rotor located within the chamber so that there is an annular gap between an inner chamber wall and an outer surface of the rotor, the annular gap being less than the diameter of the rotor to promote classification of the feed material; at least one projection and depression located laterally on the rotor to promote circulatory flow of feed material within the chamber to subject particles of the feed stream to interparticulate collisions to reduce the feed stream particle size such that the feed stream particle size reduces as the feed stream travels from the upper region to the lower region of the chamber; and one or more screens or ledges that narrow the diameter of the chamber towards the base to deflect circulating feed material above the one or more screens or ledges to increase feed material residence time in the chamber.