FILTER Russian patent published in 1996 - IPC

FIELD: cleaning of gas in various branches of industry. SUBSTANCE: filter has housing where cassettes with filtering checker are located. Cassette consists of upper and lower parts made in form of rectilinear elements located in parallel. Filtering checker is made from plied braid. Located in upper portion of filter is regeneration mechanism made in form of aerodynamic valve with flexible diaphragm and rod whose one end is secured on lower portion of cassette and other end is connected to flexible diaphragm. In course of filtration, plied braid fully fills space between upper and lower parts of cassette; in course of regeneration, braid is tightened forming vertical passages through which dust is poured into bin. EFFECT: enhanced efficiency. 2 cl, 3 dwg