BigPatents India

A longitudinal micrometric separator (3) for the classification of solid particulate materials comprising an outer casing having an inflow opening and an outflow opening for the particulate material, a collection chamber (11a) at the bottom, as well as a sliding support (10a) for the particulate material extending substantially along a longitudinal drawing axis, in which the material is conveyed in the direction of the aforesaid longitudinal axis by a forced fluid flow. The sliding support comprises at least one first inclined wall (17a), lying in a plane parallel to the drawing axis, and at least one dropping channel with axis parallel to the drawing axis and connected to a side end of the same inclined wall, the other side end of the inclined wall being set at a distance from the internal surfaces of the casing.