Device for separation of sand and stones and transportation of aggregate

摘要

Holes suitable for the passage of sand (14) are provided in the feed channel (7). Conveyor screw segments (4a) on a shaft(4) with a rotational drive (8) are located in the channel and serve to transport the aggregate through it. The channel can be set in oscillatory motion by means of vibrator units. During the transportation of sand and stones, the sand falls through the holes and the stones are carried out at the upper end of the screw conveyor.