Method and apparatus for separating and recovering fractional co

Details Method and apparatus for separating and recovering fractional co Method and apparatus for separating and recovering fractional co

1998-06-24

1999-06-01

Hail, III, Joseph J.

Solid material comminution or disintegration

Processes

With application of fluid or lubricant material

241 2419, 241 2421, B02C 1912

Patent

active

059081643

ABSTRACT:
A process is disclosed for the separation and recovery of fractional components of used carpet. Although the disclosed process is operable with either jute-backed or vinyl-backed carpet, an alternative process is preferred for vinyl-backed carpet to permit the sequential removal of the vinyl backing with most of the fiberglass stabilizer intact. The process includes the pre-cutting and preferable pre-soaking of the used carpet into appropriate sized pieces, followed by the introduction of the pre-conditioned used carpet pieces into a cyclonic comminuter which reduces the carpet pieces into fractional components. Processes for the recovery of the separated fractional components include collecting the components from the respective discharges from the cyclonic comminuter, washing, and separating by carding, static charges, pressure gradients and the like. This effective process will allow for greater utilization of carpet recycling operations to prevent used carpet from being disposed in land fills.

REFERENCES:
patent: 3794251 (1974-02-01), Williams
patent: 5236132 (1993-08-01), Rowley, Jr.
patent: 5513805 (1996-05-01), Fisher et al.
patent: 5515188 (1996-05-01), Sharer
patent: 5535945 (1996-07-01), Sferranza et al.
patent: 5722603 (1998-03-01), Costello et al.
patent: 5727740 (1998-03-01), Robinson et al.

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