Classifying – separating – and assorting solids – Electrostatic – Free fall type particle charging
Patent
1983-10-31
1985-12-10
Chiesa, Richard L.
Classifying, separating, and assorting solids
Electrostatic
Free fall type particle charging
209231, B03C 712
Patent
active
045578273
ABSTRACT:
An electrostatic free-fall separator has a feeding arrangement located upstream of the separator for feeding of fine-particle material to be separated into the electrostatic free-fall separator, wherein the feeding arrangement is formed as a funnel with braking inserts of an electrically insulated material and has walls limiting at their lower edge a longitudinal outlet slot, wherein the funnel has an inlet which is formed by one wall portion which is parallel to the outlet slot and an opposite inclined guiding surface with a lower edge extending parallel to the one wall portion so as to limit simultaneously a passage leading to the outlet slot, and two substantially vertical electrodes are arranged below the passage at a distance from one another which is smaller than the width of the passage.
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patent: 4297207 (1981-10-01), Singewald et al.
patent: 4326951 (1982-04-01), Broz
Fricke Gunter
Geisler Iring
Zentgraf Helmut
Chiesa Richard L.
Kali und Salz AG
Striker Michael J.
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