Compact sorting device for sorting a material mixture

A sorting device for sorting a material mixture into fractions of different grain size, wherein the sorting device is adapted to be driven or transported by road or rail, comprising:

• (a) a frame (1);
• (b) sorting rollers (5) which are supported on the frame (1) and arranged alongside each other and adapted to be rotary-driven and which together form a roller screen (6) for sorting the material mixture into a fine grain which falls through the roller screen (6) and an oversize grain conveyable by the sorting rollers (5) in a roller conveying direction (Y) over a side edge of the roller screen (6);
• (c) an oversize grain conveyor and collector (12), arranged below the sorting rollers (5), for removing or collecting the oversize grain conveyed over the side edge of the roller screen (6);
• and
• (d) a channelling means (20) which extends along the side edge and is inclined in an operating position towards the oversize grain conveyor and collector (12), at least in sections, between an upper region, which faces the side edge at a distance, and a lower region which is near the oversize grain conveyor and collector (12), in order to channel oversize grain, which is conveyed over the side edge of the roller screen (6) in the roller conveying direction (Y), downwards to the oversize grain conveyor and collector (12).