Classifying – separating – and assorting solids – Electrostatic – Free fall type particle charging
Patent
1996-10-04
1999-08-17
Milef, Boris
Classifying, separating, and assorting solids
Electrostatic
Free fall type particle charging
2091271, B03C 712
Patent
active
059380411
ABSTRACT:
A triboelectrostatic separation apparatus includes a separator with an inlet, a separation chamber, first and second electrodes, a variable voltage source for applying respective positive and negative voltage potentials to the electrodes, a pair of separated particle outlets and a curtain gas flow generation system. The curtain gas flow generation system includes a source of curtain gas at positive pressure, a metering valve for matching curtain gas flow velocity to particle flow velocity and flow straighteners for eliminating eddy currents. A method for separating electrostatically charged particles is also described.
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Ban Heng
Neathery James K.
Schaefer John L.
Stencel John M.
Mackey Patrick
Milef Boris
University of Kentucky Research Foundation
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