Solid material comminution or disintegration – Processes – With application of fluid or lubricant material
Patent
1975-03-03
1976-11-09
Custer, Jr., Granville Y.
Solid material comminution or disintegration
Processes
With application of fluid or lubricant material
241 23, 241 65, 241DIG37, B02C 2318
Patent
active
039906418
ABSTRACT:
Method and apparatus for separating metallic conductor wire from its insulation for reclamation of the metal and secondarily the insulation material. Random-size, non-uniform masses and pieces of the insulated wire are conveyed to an entrance end of a shaftless rotatable drum having helically deployed baffles along the inner surface thereof. The masses and pieces introduced to the drum initially and continuously are exposed therein to cryogenic coolant to freeze the same and render them brittle. The baffles continuously turn the frozen masses and pieces to ensure that all surfaces and areas thereof are exposed to the coolant for thorough freezing. Simultaneously, the action of the baffles and drum move the masses and pieces from the entrance end to an exit end of the drum. The super-cooled brittle masses and pieces are delivered from the exit end to a grinding apparatus where the same are reduced to particles of metal and insulation material. Thereafter, the particles are moved to a separating apparatus for separate accumulation of ground metal and insulation.
The drum is mounted in a cage formed by longitudinal rods extending the length thereof and transverse posts between the rods and the exterior surface of the drum such that physical connection between the drum and cage is minimal and present only at the post ends terminating on the drum surface. The minimal drum and cage connection permits drastic expansion and contraction of the drum during introduction of cryogenic material therein without hindering mechanical operation of the drum.
REFERENCES:
patent: 2879005 (1959-03-01), Jarvis
patent: 2964184 (1960-12-01), Gillette
patent: 2977255 (1961-03-01), Lowry
patent: 3185192 (1965-05-01), Delcellier
patent: 3446030 (1969-05-01), Rubin
patent: 3512581 (1970-05-01), Lawton
patent: 3771729 (1973-11-01), Frable
Custer, Jr. Granville Y.
Jeno, Inc.
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