Centrifugal pelletizing systems

Details Centrifugal pelletizing systems Centrifugal pelletizing systems

B - Operations, Transporting

30

B

18/722

B30B 11/28 (2006.01) B29B 9/00 (2006.01) B29C 47/36 (2006.01)

Patent

CA 1180862

IMPROVEMENTS IN CENTRIFUGAL PELLETIZING SYSTEMS ABSTRACT OF THE DISCLOSURE Uniform pellets of thermoplastic material are formed by centrifugally expressing strands of heated ma- terial from orifices on the rim of a hollow rotor and severing the strands with a linearly moving endless blade at a selected radial distance from the rim. The severed pellets pass in a tangential path through a cooling spray at the entrance to a pellet outlet duct. The severing blade is mounted on a bracket for movement to and from the severing position and for adjustment radially and circumferentially of the rotor axis. Two blade assemblies are employed alternately so that blade replacement may be accomplished without interrupting operation. Downstream from the outlet duct an auxiliary knife-gate is employed adjacent a scrap duct and is movable from a severing posi- tion to a scrap duct closing position.

419986

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