Nested, recirculating-fiber filter

Details Nested, recirculating-fiber filter Nested, recirculating-fiber filter

1986-12-31

1990-12-11

Russel, Jeffrey Edwin

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

55 79, 55 97, 55390, 55403, 55404, 55475, 55477, 55485, 55527, 55DIG44, 210330, 210359, 210391, 210508, 210509, 210786, 423DIG13, B01D 2412, B01D 2428, B01D 2444, B01D 5334

Patent

active

049769340

ABSTRACT:
A recirculating fiber filter (1) and method is provided for removing particulates from moving fluid streams. High aspect ratio fibers (2) are used which readily nest with each other to form the high voidage fiber filter bed. In the method, fibers are continuously removed from the bottom of the bed regenerated to remove particulates and recycled back to the top of the bed and distributed thereon. Dirty fluid is passed from the top to the bottom of the filter. Dendrites of the particulate impurity appear to buildup in a thin section (A) at the top of the filter and provide the primary mechanism for further particulate entrapment. Recirculation of fibers offers a continuously fresh volume of fibers at the top for capture of particulates.

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patent: 3708210 (1973-01-01), Stahel et al.
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patent: 4227899 (1980-10-01), Meny et al.
patent: 4229187 (1980-10-01), Stockford et al.
patent: 4295868 (1981-10-01), Holter et al.
patent: 4302221 (1981-11-01), Tanaka

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