Abstract: The invention relates to a method for cleaning filters for dust-laden waste gases, including several filter elements (2) which are arranged vertically in a filter housing (1) and which have an upper open end (16) and a lower closed end (15) with at least one feed line (9) for the dust-laden waste gases and at least one discharge line (11) for the cleaned waste gases, in addition to a device for injecting surges of compressed air into the open end (16) of the filter elements (2). In order to reduce pressure fluctuations in the filter and to provide efficient cleaning with pulsations of compressed air in the low pressure range i.e. from approximately 0.8 to 3 bars, the filter is divided into several filter modules (1) respectively including at least one filter element (2). At least two filter modules (1) are arranged in a filter housing (10) or a filter chamber.

Abstract: The invention relates to a dust filter, with at least one dust filter sleeve (1), closed at the bottom end thereof, impinged on from the outside by the dust-containing gases, including at least one electrofilter (3), with at least one collecting electrode (4). According to the invention, the filter effect may be improved, by means of increasing the degree of dust separation, whereby the at least one emission electrode (2) is arranged behind the at least one collecting electrode (4), as viewed from the filter sleeve (1). The filter sleeve (1) and associated support cages (7) are preferably electrically isolated. During cleaning of the filter sleeves (1) the ionised dust particles (5) fall for the greater part on the directly adjacent collecting electrode (4).

Abstract: The invention relates to a method for cleaning filters for dust-laden waste gases, comprising several filter elements (2) which are arranged vertically in a filter housing (1) and which have an upper open end (16) and a lower closed end (15) with at least one feed line (9) for the dust-laden waste gases and at least one discharge line (11) for the cleaned waste gases, in addition to a device for injecting surges of compressed air into the open end (16) of the filter elements (2). In order to reduce pressure fluctuations in the filter and to provide efficient cleaning with pulsations of compressed air in the low pressure range i.e. from approximately 0.8 to 3 bars, the filter is divided into several filter modules (1) respectively comprising at least one filter element (2). At least two filter modules (1) are arranged in a filter housing (10) or a filter chamber.

Abstract: The invention relates to a dust filter, with at least one dust filter sleeve (1), closed at the bottom end thereof, impinged on from the outside by the dust-containing gases, comprising at least one electrofilter (3), with at least one collecting electrode (4). According to the invention, the filter effect may be improved, by means of increasing the degree of dust separation, whereby the at least one emission electrode (2) is arranged behind the at least one collecting electrode (4), as viewed from the filter sleeve (1). The filter sleeve (1) and associated support cages (7). are preferably electrically isolated. During cleaning of the filter sleeves (1) the ionised dust particles (5) fall for the greater part on the directly adjacent collecting electrode (4).