Patent ID: 7374049
Filing Date: 2008-05-20
Classification: B07B

Abstract:
1. A screening plant which comprises: a main frame; a trommel drum mounted on the main frame to be rotatable about a rotational axis at a small angle to the horizontal, said drum having an input end for receiving a bulk supply of raw material and an opposite discharge end, at a lower end than the input end; screening apertures provided in the wall of the drum; drive means coupled with the drum and operative to rotate the drum while screening takes place; an input hopper mounted on the main frame and arranged to supply bulk material to the input end of the drum, said hopper comprising: an upper receiving mouth; and an inclined guide chute arranged below the mouth to receive the bulk material and to guide the material laterally so as to enter the input end of the drum; characterized by: a slew ring upon which the main frame is rotatably mounted so as to allow the trommel drum and main frame to rotate so as to adjust the position of the discharge end of the drum; and means to mount an input end of the trommel drum so as to mount the trommel drum in a cantilever manner at the main frame.