Classifying – separating – and assorting solids – With heat treatment
Patent
1984-10-31
1986-10-14
Bashore, S. Leon
Classifying, separating, and assorting solids
With heat treatment
209174, 209175, 209189, 209193, 75 63, 266205, B03B 530, B03B 536, C22B 700, C22B 704
Patent
active
046171126
ABSTRACT:
A thermal gravity classifier in which various nonferrous scrap metals are classified and separated, using a single tank containing two layers of molten media. Shredded nonferrous scrap containing metal constituents such as aluminum, zinc, lead, and copper or the like are introduced to the top of the tank containing an upper layer of molten zinc, floating on a lower layer of molten lead. Metals such as aluminum, having a specific gravity less than zinc, by a screw conveyor approximately parallel with the top surface. Heavier metals and alloys such as copper or the like, having a melting point above the temperature within the tank, fall through the zinc layer and are conveyed from the tank by a separate screw conveyor extending up a diagonal wall of the tank. Metals such as lead and zinc, having a melting point lower than the temperature maintained within the tank, melt and gravitate to the appropriate molten layer in the tank. The molten metals are separately withdrawn from the layers in the tank from time to time.
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patent: 2843473 (1958-07-01), Colbry et al.
patent: 3252769 (1966-05-01), Nagelvoort
patent: 3442643 (1969-05-01), Ackerman
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"Amalgamation of Gold-Ores from Silver and Gold", J. B. Ford & Co., Rossiter W. Raymond, 1876.
Lindroos Jarl
Peacock Bobbie
Stout Michael E.
Bashore S. Leon
Lithgow Thomas M.
M.A. Industries, Inc.
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