Classifying – separating – and assorting solids – Sorting special items – and certain methods and apparatus for... – Condition responsive means controls separating means
Patent
1993-03-24
1994-08-02
Dayoan, D. Glenn
Classifying, separating, and assorting solids
Sorting special items, and certain methods and apparatus for...
Condition responsive means controls separating means
209587, B07C 5342
Patent
active
053337395
ABSTRACT:
A method and apparatus for sorting bulk material, such as scrap glass, which consists of individual glass parts. Glass scraps are serially fed into a chute and illuminated by a white light source. An optical detector comprising two optical sensors measures optical frequency transmittance data from individual glass scraps, at two frequencies. The two transmittance measurements are logarithmized and a quotient is formed to eliminate the transmittance effect due to glass thickness. The scraps are then classified by a classifier on the basis of the measuring data in accordance with empirically determined classification parameters. The parts are then sorted by a compressed air jet in accordance with the classification. The classification parameters are previously determined by providing a sample of the glass of one color. The measuring data of that sample is determined and optimal classification parameters are then determined on the basis of the measuring data in occurring in the sample.
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Bodenseewerk Geratechnik GmbH
Dayoan D. Glenn
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