Air classifier for sepg. particle mixture - has particles stratified in horizontal layers of heavy and light fractions by upward air current

摘要

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 extend along the bottom of the passageway through which deck air is flowing upwardly within and downstream of the passageway. Air nozzles are located between the air deck section through which a primary vertical air stream is flowing, the latter also pref. flowing with a horizontal component moving downstream of the passageway. A heavy particle deflector and remover is down stream 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 in the passageway over the first air deck section just upstream of the primary vertical air nozzle.