Fine particle separation by electrostatically induced oscillatio

Details Fine particle separation by electrostatically induced oscillatio Fine particle separation by electrostatically induced oscillatio

1978-09-29

1979-10-23

Hill, Ralph J.

Classifying, separating, and assorting solids

Plural, diverse separating operations

Including electrostatic

209127R, 209243, 209359, B03C 702

Patent

active

041720288

ABSTRACT:
The classification of small particles is performed by utilizing the oscillation of particles as they pass through electric fields. The apparatus utilizes vertically spaced sieve electrodes which are at the same or at a different potential as a particle charging device. The particle charging device transfers particles to an attracting electrode at a point located directly opposite the particle transfer zone. In this manner, oscillating particles are dropped between two vertical sieves and classification is accomplished as the particles move to the screen by virtue of their oscillation.

REFERENCES:
patent: 2361946 (1944-11-01), Johnson et al.
patent: 2803344 (1957-08-01), Morrison
patent: 3635340 (1972-01-01), Dunn
patent: 4071169 (1978-01-01), Dunn

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