INSTALATIE DE FILTRARE A PRAFULUI

摘要

1352765 Dust filter W BERZ 13 Dec 1971 [30 Dec 1970 14 Jan 1971 7 April 1971 13 April 1971] 57804/71 Heading BIT A dust-filtering system has a number of filter chambers 2 which are selectively connectable either between a dirty, gas inlet 9 and a clean gas exhaust 7 in order to effect gas cleaning or between the clean gas exhaust and a flushing gas exhaust 13, 14 to effect reverse flow cleaning of the filter. A preliminary dust separator 10 is placed in series with and downstream of the dirty gas inlet while a further gas separator 23 connected between the flushing gas exhaust and the dirty gas inlet means allows the used flushing gas partially cleaned by the further dust separator can be recycled through the preliminary dust separator and the appropriate filter chamber(s). Fig. 14 illustrates a schematic flow diagram of an installation in operation. Figs. 10 and 12, not shown, illustrate cleaning of the filler fabrics used in the filter chambers.