Centrifugal spreader has two rotary driven discs with discharge vanes each with upright back wall having slit like apertures

摘要

The spreader has two rotary driven spreader discs each with two channel-like discharge vanes of different length. The vanes (12, 13) each have an upright back wall (17,18)which each have a slit-like aperture (19). The height of the apertures is lower than the back wall. The apertures can be arranged centrally to the radially extending centre longitudinal axis (20) in the back walls.