Title: Method and apparatus for sorting mixtures of materials by ballistic effect and differential adherence

Abstract: The sorting method includes moving materials at a certain horizontal speed such that on falling their points of impact are disbursed over a moving sorting belt in such a manner that the materials become located at points which are sufficiently different to enable effective sorting to be obtained by small adhesion differences so that the adhering materials are carried by the sorting belt to a discharge region and the non-adhering or weakly adhering materials are rejected by the belt. The apparatus includes a feed device located above a moving adhesion belt having an adjustable speed control and an arrangement for adjusting the position of the feed device relative to the adhesion sorting belt.

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Inventors: Clin, Francois H. (Orleans, FR)
Gony, Jean-Noel M. (Orleans, FR)
Proust, Francois O. (Olivet, FR)

Application Number: 780397
Filing Date: 1977-03-23
Publication_date: 1979-02-27
Assignee: Bureau de Recherches Geologiques et Minieres (Paris, FR)
Primary Class(es): 209/3.1 209/629, 209/637, 209/693, 209/700, 209/930, 209/932
Other Classes:
US Patent Ref:

1246572	Nov, 1917	Elliott	209/114.
3384233	May, 1968	Bolles	209/92.
3757945	Sep, 1973	Keiter	209/114.

Other Refs:
Primary Examiner: Knowles, Allen N.
Assistant Examiner:
Attorney: Sughrue, Rothwell, Mion, Zinn and Macpeak