Classifying – separating – and assorting solids – Sorting special items – and certain methods and apparatus for... – Condition responsive means controls separating means
Patent
1987-03-23
1989-07-18
Reeves, Robert B.
Classifying, separating, and assorting solids
Sorting special items, and certain methods and apparatus for...
Condition responsive means controls separating means
198372, 209589, 209639, 209911, B07C 500
Patent
active
048485900
ABSTRACT:
Apparatus for sorting pieces of non-ferrous scrap metal into a plurality of components, each component being a particular metal type, feeds the pieces into a vertically disposed sorting zone. The pieces fall down a steeply inclined guide member under the influence of gravity and they pass a pair of timing devices which are spaced apart along the guide member, each timing device being a light source on one side of the path of the pieces and a light detector on the other side. The timing devices provide signals representing not only timing but also size an velocity. The pieces then pass an x-ray analysis system including a source of high energy rays to induce x-ray fluorescence and a detector to detect this fluorescence. The detector provides signals indicating the metal type for each piece of scrap. The pieces then fall past a plurality of blast nozzles spaced apart along the guide member. Each nozzle has a control which turns on a flow of fluid such as air through the nozzle to deflect a particular piece into a specific deflection path. Each piece is thus directed into a deflection path for a specific component.
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Beusse James H.
Hajec Donald T.
Kelly Moira F.
Lamb Helen M.
Reeves Robert B.
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