1
Edoardo Costarelli: Screw drier particularly for plastic materials. Holman & Stern, June 4, 1985: US04520724 (19 worldwide citation)

A tunnel drier particularly for plastic materials has a screw-conveyor operated by an electric motor through a reducer.


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Costarelli Edoardo: Screw drier particularly for plastic materials, operated by an electric motor through a reducer.. Costarelli Edoardo, August 28, 1985: EP0152724-A1 (1 worldwide citation)

The shaft (11) of the screw is overhung mounted in tapered roller bearings. The turns (12) of the screw conveyor advance the material fed through a hopper (5), through a drying channel (4). Downstream the last turn (12) means (13) are provided to break up the material. The presence of the turns is l ...