decanter centrifuge, and helical conveyor for a decanter centrifuge

摘要

decanter centrifuge, and helical conveyor for a decanter centrifuge a decanter centrifuge to separate a material supplied in a light phase and a heavy phase comprising an elongated vessel arranged for rotation around its longitudinal geometric axis, the vessel having a separation chamber with a circumferential wall, a helical conveyor (3) being provided in the separation chamber and being coaxial with the vessel, the helical conveyor comprising a transport hub (14). the transport hub comprises a longitudinal tubular steel body part (18) and a helical steel transport section (15) attached to the tubular steel body part. the transport hub further comprises an internal longitudinal body extending coaxially with respect to the longitudinal tubular steel body part. the internal longitudinal body (19) extends through at least part of the tubular steel body and is made of a first material, such as carbon fiber reinforced epoxy, whose specific modulus is greater than the specific modulus of the material steel of the tubular steel body part.