Feb 03, 2016· 1. Method of grinding by compressing a bed of materials implemented by means of a compressive grinder (1) for a bed of materials (5), comprising: - a cylinder (2) with a horizontal axis (A) of which the inner wall comprises a raceway (20) for a grinding roller (3), arranged inside said cylinder (2), - means for rotating the cylinder about its axis (A), - said grinding roller (3), with an axis ...