Method of automatic debris separation

Details Method of automatic debris separation Method of automatic debris separation

2005-04-26

2005-04-26

Walsh, Donald P. (Department: 3653)

Classifying, separating, and assorting solids

Fluid suspension

C209S133000, C209S138000, C209S139100, C209S154000

Reexamination Certificate

active

06883668

ABSTRACT:
The invention is an automatic debris separation process for effecting air separation of fragmented materials, such as size-reduced fiber feedstocks derived from textile wastes. The process uses high-velocity air within an elutriation assembly to efficiently remove ferrous and non-ferrous metal debris from recyclable polymer fibers. In particular, the process may employ automatic process control strategies to vary airflow within the elutriation assembly in process-controlled response to measured metal contamination, thereby ensuring that post-separation metal contamination is maintained at or below an upper contamination limit.

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