Device for pretreating plastic waste before recycling

Details Device for pretreating plastic waste before recycling Device for pretreating plastic waste before recycling

1991-02-25

1993-05-18

Drodge, Joseph W.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Material level or thickness responsive

100 43, 100148, 100150, 210104, 210143, 210149, 210167, 2102571, 210258, 210260, 210403, 241 24, 241 33, 241DIG38, B01D 1712, B30B 1526

Patent

active

052118410

ABSTRACT:
A pretreating plastic waste device including a tank containing a liquid to which the plastic waste is introduced, a washing pump, a dripping drum, and a dewatering device comprising a press-screw adapted for separating the washed waste from the washing liquid and a drying drum fed by a hot air blower, and a filtration vat. A programmable controller receiving signals from various level and temperature sensors and various working parameters allows total control, at all stages, of the waste pretreatment cycle. The programmable controller is associated with a screen for displaying error messages and a control desk for allowing direct selective intervention at the level of the concerned elements.

REFERENCES:
patent: 3304894 (1967-02-01), Cox et al.
patent: 4000031 (1976-12-01), Acobas
patent: 4160722 (1979-07-01), Marsh
patent: 4379525 (1983-04-01), Nowicki et al.
patent: 4520724 (1985-06-01), Costarelli
patent: 4809854 (1989-03-01), Tomaszek
patent: 5060870 (1991-10-01), Trezek et al.

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