Classifying – separating – and assorting solids – Fluid suspension – Gaseous
Patent
1975-10-14
1978-05-16
Halper, Robert
Classifying, separating, and assorting solids
Fluid suspension
Gaseous
209474, B07B 402
Patent
active
040894223
ABSTRACT:
An air classifier for separating a heterogeneous mixture of particles into heavier and lighter fractions includes an air passageway through which a horizontal primary air stream is flowing, a pair of air deck sections extending along the bottom of the passageway through which deck air is flowing upwardly within and downstream of the passageway, air nozzles located between the air deck sections through which a primary vertical air stream is flowing, the latter also preferably flowing with a horizontal component moving downstream of the passageway, a heavy particle deflector and remover downstream of the second air deck section, and a light particle trapping and removal arrangement downstream of the heavy particle deflector. The particle mixture is introduced into the passageway over the first air deck section just upstream of the primary vertical air nozzle, whereupon the particles are immediately stratified in horizontal layers of heavy and light fractions by the upward air currents and transported to the end of the passageway by the horizontal air currents, where the fractions are separated from the air flows and removed from the passageway.
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patent: 3836085 (1974-09-01), Brown
patent: 3920542 (1975-11-01), Laird
Harmke Charles Raymond
O'Neill Daniel Edward
Halper Robert
The Boeing Company
Thomas Kenneth W.
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