Solid material comminution or disintegration – Apparatus – With separation or classification of material
Patent
1983-05-10
1985-06-11
Hart, Charles
Solid material comminution or disintegration
Apparatus
With separation or classification of material
241 80, 2411017, 209283, 209261, B67B 1300
Patent
active
045223440
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 bin or receptacle. The chip material is augered 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 to a fines trough, 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. The system includes mechanism for diverting chipped material unsuited to use in a paper mill, such as chipped tree tops, directly to the fines trough.
REFERENCES:
patent: 1235427 (1917-07-01), Bridewell et al.
patent: 1781472 (1930-11-01), Nagle
patent: 3069101 (1962-12-01), Wexell
patent: 3823819 (1974-07-01), Bakke
patent: 4140281 (1979-02-01), Fulghum et al.
patent: 4240588 (1980-12-01), Fulghum
patent: 4430210 (1984-07-01), Tuuha
Hart Charles
Morbark Industries, Inc.
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