Dispositivo di trasporto, metodo di trasporto e sistema per il recupero di inerti

A transport device for conveying a flowable material, comprises a screw conveyor for collecting the fluid from a collecting zone and transporting the fluid to a destination zone. The screw conveyor comprises a spiral which is wound around a shaft extending along a longitudinal axis and an outer casing which at least partly houses the spiral. The spiral has a plurality of turns. The outer casing has an inner surface facing respective head surfaces of at least some turns. Between two consecutive turns and the outer casing there is a compartment. The outer casing is made at least partly from a deformable polymeric material in such a way that the outer casing deforms radially and reversibly towards the outside when a solid particle of the flowable material conveyed by the spiral is interposed between a head surface of one turn and the inner surface of the outer casing, to allow the solid particle to be transferred from one compartment to a further compartment adjacent to said compartment passing between the head surface of the turn and the inner surface of the outer casing.