Method and apparatus for separating non-ferrous metal from waste

Details Method and apparatus for separating non-ferrous metal from waste Method and apparatus for separating non-ferrous metal from waste

1974-06-04

1976-07-20

Halper, Robert

Classifying, separating, and assorting solids

Precedent preparation of items or materials to facilitate...

Sorting special items or sorting by methods and apparatus...

209 12, 209128, 241 24, B03B 100, B03C 704

Patent

active

039705463

ABSTRACT:
Apparatus for separating non-ferrous metal from waste material comprising a grounded rotary conductive drum, means for feeding waste material to the drum, a D.C. corona electrode, an A.C. corona electrode, a D.C. static electrode and a splitter. The method of separation comprises magnetic separation of ferrous metals, sizing of the waste material, preliminary classification to remove dust and low density particles, drying to reduce the moisture content, feeding the waste material to the rotating grounded roll and subjecting the material successively to D.C. corona discharge, A.C. corona discharge and a D.C. electrostatic field.

REFERENCES:
patent: 2187637 (1940-01-01), Sutton
patent: 2314939 (1943-03-01), Hewitt
patent: 3031079 (1962-04-01), Boss
patent: 3236604 (1966-02-01), Pierson
patent: 3249225 (1966-05-01), Stuetler
patent: 3322275 (1967-05-01), Breakiron
patent: 3650396 (1972-03-01), Gillespie
patent: 3775104 (1973-11-01), Matsumoto
patent: 3800153 (1974-03-01), Matsumoto
patent: 3897330 (1975-07-01), Rhys

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