Shredder dust treatment process

Details Shredder dust treatment process Shredder dust treatment process

1998-12-01

2000-07-11

Rosenbaum, Mark

Solid material comminution or disintegration

Processes

With application of fluid or lubricant material

241 2413, 241DIG38, B02C 1912

Patent

active

060860006

ABSTRACT:
A preferred shredder dust treatment process which includes: (1) a step of executing a first crushing; (2) a step of separating and recovering metals from the first crushed product; (3) a step of a second crushing; (4) a step of separating and recovering metals from the second crushed product; (5) a step of executing a third crushing; (6) a step of collecting and recovering dust and the like by fluidizing the third crushed product to separate therefrom a fluffy dust and pneumatically transporting the separated fluffy dust to a dust collector; and (7) a step of separating and recovering non-ferrous metals, non-metals, and the like, from the third crushed product. Preferably, the shredder dust is crushed by crushers having square blades.

REFERENCES:
patent: 4036441 (1977-07-01), Basten et al.
patent: 4139454 (1979-02-01), Larson
patent: 5080291 (1992-01-01), Bloom
patent: 5301881 (1994-04-01), Hayashi et al.
patent: 5443157 (1995-08-01), Baker et al.
patent: 5611493 (1997-03-01), Hayashi et al.

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