Patent ID: 10702890

Abstract:
A device for separation and removal of light impurities of a granular material has a body (1) in the upper part of which is located a fan (2) that sucks air, driven by a motor (3), and in the central part is axially fixed a hopper (6) connected to an inlet (7) of the granular material wherein in the lower part of the device is located a module (13) in the shape of a centripetal guide (14) consisting of a cylindrical housing (15) on the internal wall of which are evenly arranged, at a distance from each other, in different transverse planes, directing plates (16) turned with their ends towards the device axis such that the plates (16) in one plane are shifted in relation to the plates (16) in an adjacent plane. Between the hopper (6) and constituting a separate module (13) the centripetal guide (14) with directing plates (16), a module (8) is located in the shape of a cylinder (9) inside which is located a centrifugal guide (10) that has a shape of an axial supporting member (11) on the surface of which in different transverse planes are fixed directing elements (12) turned with their ends towards the internal wall of the cylinder (9). The modules (8) with the centrifugal guide (10) and the modules (13) with the centripetal guide (14) are placed alternately below the hopper (6).