Sepn. procedure for packaging wastes - including sieve classification, dynamic separation of paper and styrene foam, and electrostatic separation of foil

摘要

Procedure for sorting trade-waste, novel by virtue of the following process steps: (a) size reduction; (b) sieve classifying; (c) riffle table separation by body-form, and (d) dynamic separation and electrostatic separation of foils. A riffle type table, inclined to approx. 10-20 deg. in both the longitudinal and transverse directions is disclosed, vibrated at 200-450 Hz. Suction may also be applied to the underside of the table. USE/ADVANTAGE - Use of a riffling-table type separator providing separation as a function of the body shape/configuration (as opposed to the more usual differential specific gravities), particularly for recovery of lightweight packaging material components.