Compact sorting device for sorting a material mixture

摘要

A sorting device that can be transported by road or rail has rotary driven sorting rollers, supported on a frame, that together form a roller screen for sorting a material mixture into a fine grain size which falls through the roller screen and an oversize grain that is conveyed by the sorting rollers over a side edge of the roller screen. An oversize grain conveyor and collector is arranged below the sorting rollers. A channelling means extends along the side edge and is inclined in an operating position towards the oversize grain conveyor and collector, 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, in order to channel oversize grain, which is conveyed over the side edge of the roller screen, downwards to the oversize grain conveyor and collector.

主权项

1. 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), wherein the channelling means (20) comprises a lower end which extends up to a lateral edge of or over the oversize grain conveyor or collector (12) in the operating position, and wherein the channelling means (20) is movable back and forth between the operating position and a resting position which is nearer the side edge of the roller screen (6), and comprises a flexible and/or freely protruding strip (23) at its lower end, wherein said strip laterally limits the oversize grain conveyor and collector (12) when the channelling means (20) is in the operating position, in order to prevent oversize grain from accumulating between the channelling means (20) and the oversize grain conveyor and collector (12).