Solid material comminution or disintegration – Apparatus – With separation or classification of material
Patent
1988-12-30
1990-01-30
Eley, Timothy V.
Solid material comminution or disintegration
Apparatus
With separation or classification of material
2092231, 209231, 209225, 241100, 2411862, B02L 1326
Patent
active
048968366
ABSTRACT:
A hammer mill (10) having a feeder section (14) connected vertically above a mill section (12) such that feed material from a feed supply containing tramp metal (46) is introduced into the feed section and is divided therein into discrete quantities which are poured at a predetermined rate into the mill section. A continuously rotating feeder member (28) is situated in the vertically upper portion of the feeder section, the feeder member including means (40) for transporting a discrete quantity of feed material from a first position where the quantity is separated from the feed supply to a second position where the quantity is poured toward the mill section. A continuously rotating drum magnet (44) is situated below the rotating feeder member such that the quantities of feed material fall toward the drum magnet as the quantities are poured. In this manner, the tramp metal in the feed material is magnetically captured by the drum magnet and the remainder of the feed material falls into the mill section. The tramp metal is detached from the drum either passively as a result of differential magnetization of the drum, or actively by a wiper blade or air stream.
REFERENCES:
patent: 3929295 (1975-12-01), Montalbano
patent: 4350307 (1982-09-01), Olson
patent: 4420390 (1983-12-01), Carr
Sprout-Waldron-Series III Hammer Mills-Brochure 1200, 5/85.
Eley Timothy V.
Sprout-Bauer Inc.
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