Method of and apparatus for continuously treating comminuted syn

Details Method of and apparatus for continuously treating comminuted syn Method of and apparatus for continuously treating comminuted syn

1990-05-14

1991-04-30

Rosenbaum, Mark

Solid material comminution or disintegration

Processes

By utilizing kinetic energy of projected or suspended material

241 20, 241 23, 241 24, 241 29, 241 65, 241 791, 241DIG37, B02C 1900

Patent

active

050110870

ABSTRACT:
A system for separating contaminants from the plastic flake obtained by granulating synthetic plastic containers and products, which have contaminants bonded thereto, has a cryogenic housing for receiving the flake and a transport mechanism incorporated with the housing for moving the flake in a flow stream through the housing. The flake is mixed with a cryogenic medium at a subzero temperature and an impeller receives the frozen flake in a flow stream. An impact wall is provided outboard of the impeller and the impeller is rapidly revolved to radially separate the flakes and hurl the flakes individually at the impact wall with sufficient force to break the bond between the flakes and contaminant.

REFERENCES:
patent: 2609150 (1952-09-01), Bludeau
patent: 3229923 (1966-01-01), Conley et al.
patent: 4102503 (1978-07-01), Meinass
patent: 4251034 (1981-02-01), Corr et al.

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