System and method for disposing waste

Details System and method for disposing waste System and method for disposing waste

1995-05-26

1997-03-18

Watts, Douglas D.

Solid material comminution or disintegration

Processes

With heating or cooling of material

241DIG38, B02C 2100

Patent

active

056114931

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: 3885744 (1975-05-01), Drage
patent: 4251034 (1981-02-01), Corr et al.
patent: 4406411 (1983-09-01), Gall et al.
patent: 4493806 (1985-01-01), Hatzikelis et al.

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