Classifying – separating – and assorting solids – Electrostatic – With vibrating trough charging of particles
Patent
1983-11-15
1985-04-30
Williams, Howard S.
Classifying, separating, and assorting solids
Electrostatic
With vibrating trough charging of particles
209128, B03C 704
Patent
active
045142890
ABSTRACT:
Particles having different properties (e.g. particulate fly ash and carbon) are separated by moving the particles forwards along a horizontal electrode plate (1) above which is mounted a second electrode (2) having two plates (4) each extending sideways from a central block (3) of dielectric material at an acute angle (.alpha.) to the horizontal. An alternating electric field is generated between the electrodes (1, 2) by a high voltage AC power source (14). The field lines (16) from each plate curve to the side and impart centrifugal forces to particles charged by friction or conductive induction, which forces separate lighter, more highly charged particles from the others. The separated particles are collected in bins (13) arranged around the lower electrode (1), which electrode is mounted on a vibratory transducer (12).
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Blue Circle Industries PLC
Chapman Terryence
Williams Howard S.
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