Automobile shredder residue (ASR) separation and recycling system
AssigneeNimco Shredding Co.
InventorsBennie A. Baker, Kenneth L. Woodruff, Joseph F. Naporano
Life of this patent
Estimating the term…
Abstract
An ASR separation and recycling system which permits the separation of ASR into many constituent components for recycling or reuse. Among the products recovered are steel, stainless steel, copper, aluminum, other non-ferrous metals, fine magnetic fraction (iron oxide product), clean grit, polyurethane foam, various plastics, fibers and rubber. The ASR separation and recycling system comprises four major components. The first is initial size and separation of ASR into three separate fractions. The second component comprises a grit processing subsystem. The third component is a rubber and plastics recovery subsystem and the fourth component is a polyurethane foam separation and cleaning subsystem.
Claims15
A method of sorting and separating automobile shredder residue, comprising the steps of:
- separating automobile shredder residue into an undersize fraction, a middling fraction and an oversize fraction;
- separating the undersize fraction into a ferrous portion and a non-ferrous portion;
- separating the middling fraction into a light fraction and a heavy fraction;
- separating the oversize fraction into a light stream and a heavy stream;
- combining the heavy fraction from the middling fraction with the heavy stream from the oversize fraction;
- and
- magnetically separating the heavy fraction from the middling fraction and the heavy stream from the oversize fraction to recover steel and a non-magnetic portion.
Dependencies are inferred from the claim text.