Method and apparatus for removing plastic from wood chips

Details Method and apparatus for removing plastic from wood chips Method and apparatus for removing plastic from wood chips

1992-09-29

1994-04-12

Dayoan, D. Glenn

Classifying, separating, and assorting solids

With heat treatment

209 45, 209485, 209498, B07B 1300

Patent

active

053018109

ABSTRACT:
Apparatus and process for removing unwanted foreign material from particulate material. The apparatus and process find particular application in the pulp and paper industry to remove contaminating plastic material from wood chips. The apparatus includes a transporting conveyor for moving the particulate material between a inlet area and an outlet area and a vibrating motor for vibrating the conveyor to sort the particulate material and the foreign material. Heated rollers heated to a temperature sufficient to render the foreign material tacky are applied to the sorted material and cause the foreign material to adhere thereto such that the foreign material is extracted from the particulate material which is delivered to the outlet area.

REFERENCES:
patent: 581908 (1897-05-01), Gent et al.
patent: 3006465 (1961-10-01), James
patent: 3070318 (1962-12-01), Blanchard
patent: 3472379 (1969-10-01), Lainas et al.
patent: 3587851 (1971-06-01), Anderson
patent: 3599788 (1971-08-01), Fyfe
patent: 4532030 (1985-07-01), Avedian et al.

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