Patent ID: 7651044
Filing Date: 2010-01-26
Classification: B02C

Abstract:
1. An apparatus for the mechanical processing of materials in the dry state, said apparatus comprising a casing, within which are set a plurality of rollers and at least one common element for said plurality of rollers, said common element comprising a diffuser element, a contrast element or a combined diffuser and contrast element, said casing having at least one input section and at least one output section for said materials, wherein said plurality of rollers are arranged around said common element so as to define, for each roller of said plurality of rollers, a gap between said common element and the side surface of said roller, and wherein the apparatus further comprises means for setting in rotation said common element with respect to said plurality of rollers and/or for setting in rotation at least one roller of said plurality of rollers with respect to said common element; and means for varying the gap between at least one roller of said plurality of rollers and said common element, said means for varying said gap comprising at least one guide mounted in the casing, said at least one roller being movable on the at least one guide such that the at least one roller is movable radially towards and away from said common element.