FIELD: filters.
SUBSTANCE: invention relates to dry gas cleaning of dust and is used in filters of various industries. Filtration material includes corrugated filter web, corrugation peaks are connected with distance between peaks of adjacent corrugations from 1.1 to 2.4 of height of corrugation. Distance between fasteners along folding line of corrugations can make from 5 to 15 height of corrugation, and corrugations tops can be attached from both sides of web. At the same time distances between corrugations tops at each side may be identical or different, and crimping of corrugation peaks on opposite sides of the web can be made alternately or in staggered order. Besides, corrugation of crimps top can be made across or (and) at angle to corrugation fold lines.
EFFECT: increased filtration area of filtering material made on corrugated web basis.
5 cl, 5 dwg
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