Wood chip screening and processing method and apparatus

Details Wood chip screening and processing method and apparatus Wood chip screening and processing method and apparatus

1981-08-10

1983-08-02

Sever, Frank

Classifying, separating, and assorting solids

Treatment subsequent

209283, B07B 1500

Patent

active

043965016

ABSTRACT:
A system for separating and classifying whole tree wood chip material comprising essentially wood and bark overs, chips and bark fines which is supplied to a large capacity surge bin. The chip material is augering in a forward direction in a monitored flow longitudinally away from the bin while passing it across a first stationary screen trough system having openings of a size to pass everything, while rejecting the overs. The acceptable chips and fines passed through the first screen trough system are then augered across a second stationary screen trough system having openings of a size to pass the fines while retaining the acceptable chips. Finally, the acceptable chips are moved forwardly toward a chip discharge location while the fines passed through the second screen trough system are separately collected.

REFERENCES:
patent: 1235427 (1917-07-01), Bridewell et al.
patent: 1781472 (1930-11-01), Nagle

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