GAS FILTER Russian patent published in 2001 - IPC

FIELD: cleaning gases from mechanical admixtures. SUBSTANCE: gas filter includes housing with cover secured on it and used for closing the circular slot in which cassette is mounted by means of mounting clearances. Cassette has housing with inlet and outlet screens fitted on its ends on the outside; these screens are bordered by ferrules. Handless secured on housing by means of axles are made in form of double-arm levers whose shorter arms are provided with shoulders directed towards housing. Longer arms are provided with slots inclined towards its surface. Relief screen at area of mesh equal to S_f, is located inside housing between inlet and outlet screens at area of mesh equal to S_r; it is located at distance l_r from inlet screen. EFFECT: enhanced efficiency of cleaning gas; low operational expenses and increased terms between maintenance jobs. 3 cl, 7 dwg