System for disposing waste

Details System for disposing waste System for disposing waste

1993-05-05

1994-04-12

Watts, Douglas D.

Solid material comminution or disintegration

Apparatus

With temperature modification of material

241 23, 241 24, 241DIG37, 241DIG38, B29C 2900

Patent

active

053018818

ABSTRACT:
A waste disposal system includes a stock yard for storing waste articles, a pre-treatment apparatus for separating a metal bulk from each waste article fed from the stock yard, a cryogenic crushing apparatus for crushing the separated metal bulk, and a crushing apparatus for crushing the portion of the waste article other than the metal bulk. The system further includes a light-weight article separating apparatus for separating the crushed waste from said crushing apparatus into foamed material and other wastes, and a foaming agent collecting apparatus which separates the foamed material into solid plastics and gaseous foaming agent and then cools and liquefies the gaseous foaming agent.

REFERENCES:
patent: 3921917 (1975-11-01), Meinass
patent: 4025990 (1977-03-01), Lovette
patent: 4036441 (1977-07-01), Basten et al.

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