Method and apparatus for removing dust and debris from particula

Details Method and apparatus for removing dust and debris from particula Method and apparatus for removing dust and debris from particula

1989-08-14

1991-07-30

Hajec, Donald T.

Classifying, separating, and assorting solids

Precedent preparation of items or materials to facilitate...

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

15 1051, 209 39, 209133, 209 8, B07B 704

Patent

active

050353314

ABSTRACT:
The impurity laden particulate material to be cleaned by a gravity feed deduster is passed through a magnetic field of varying intensity to neutralize the static charge causing the impurities to adhere to the primary product. The material is then subjected to air flows to separate the neutralized debris from the primary product. The air flows can be of high velocity and can be either pressurized air or vacuum induced. The cleaned product is collected and the contaminated air is treated to recover the debris therefrom.

REFERENCES:
patent: Re24954 (1961-03-01), Church
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patent: 3441131 (1969-04-01), Gebauer
patent: 3669264 (1972-06-01), Bryant
patent: 3738828 (1973-06-01), Inoue
patent: 4299693 (1981-11-01), Paulson
patent: 4363070 (1982-12-01), Kisler
patent: 4379748 (1983-04-01), Hoogendoorn
patent: 4631124 (1986-12-01), Paulson
patent: 4668381 (1987-05-01), Julius
patent: 4835808 (1989-06-01), Hahne et al.

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