Transport device, transport method and system for reclaiming aggregates

A method comprising the steps of:

• introducing a flowable material into a collecting zone;
• providing a transport device comprising a screw conveyor including a spiral which is wound on a shaft extending along a longitudinal axis and an outer casing which houses at least partially the spiral, the spiral having a plurality of turns, the spiral having an inner surface facing respective head surfaces of at least some turns of said plurality of turns, between two consecutive turns of said plurality of turns and the outer casing a compartment being defined, the outer casing being made at least partially with a deformable polymeric material;
• transporting the flowable material from the collecting zone to a destination zone by using the transport device;
• wherein, during the transporting step, the outer casing deforms radially and reversibly towards the outside when a solid particle of said flowable material, which is conveyed by the spiral, is interposed between a head surface of a turn of said plurality of turns and the inner surface of the outer casing, so that said solid particle is transferred from a compartment to a further compartment adjacent to said compartment by passing between the head surface of the turn and the inner surface of the outer casing.