FIELD: process engineering.
SUBSTANCE: invention relates to process gas cleaning filters and may be used in nuclear and mining industries. Aerosol filter comprises casing accommodating filtration element made up of fibrous filtration element arranged folded with separators fitted between folds. Filtration material with electret properties is based of superfine fibers not containing chlorine that feature surface density of 30 to 100 g/m2 and thickness vs resistance to air flow varying from 0.2 to 0.6 mm/mm WG. Cylindrical filtration element features relation between diametre of circle formed by fold inner crests and diametre of circle formed by outer crests of folds equal to 1:(2.0-2.2). Filter incorporates gas-permeable cylinder arranged coaxially inside filtration element and made from the same polymer but with fiber diametre making 0.1-0.3 mm.
EFFECT: higher efficiency of filtration, simple assembly an recovery.
2 cl, 1 dwg, 2 tbl
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