Apparatus for manufacturing expandable polystyrene (EPS) pellets

Details Apparatus for manufacturing expandable polystyrene (EPS) pellets Apparatus for manufacturing expandable polystyrene (EPS) pellets

1992-05-13

1993-12-07

Chiesa, Richard L.

Plastic article or earthenware shaping or treating: apparatus

Including means advancing continuous length work through...

264143, 26421117, 2642112, 425316, 4253782, 4253822, 425464, 425DIG230, B29C 4788

Patent

active

052678458

ABSTRACT:
A device for manufacturing expandable polystyrene (EPS) pellets includes a continuous process extruder, a die, a pelletizer and a hot water annealing quencher assembly. The pelletizer cuts strands of EPS material extruded from the extruder and die into uniform EPS pellets. The annealing quencher assembly includes a quencher tank, a water vortex substantially immersed therein for generating a slurry of water and EPS pellets discharged from the pelletizer, a quenching loop, and a slurry pump for pumping the slurry from the water vortex through the quenching loop to thereby anneal the EPS pellets.

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patent: 5000891 (1991-03-01), Green
patent: 5186959 (1993-02-01), Tanaka

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