Bag filter apparatus

Claim 1

In a bag filter apparatus comprising, a housing having at least one filter chamber which is sub-divided into a clean gas room having a clean gas outlet, and a dust gas room having a dust gas inlet, by a partition wall provided with perforations, a plurality of horizontal and cross-sectionally flattened oval filter bags arranged in vertical and parallel rows, and received in the dust gas room between a rear wall of the housing and the partition wall, to be impinged upon by dust gas from the outside toward the inside thereof, each of said filter bags being provided with a rigid internal spacing element, and being supported at the closed extremity thereof in the dust gas room, and having the open extremity thereof releasably fastened to the partition wall, and a sealing frame having rigid parts disposed at the clear gas side of the partition wall releasably and sealingly fastening the open extremities of said filter bags to the partition wall in alignment with the perforations of the partition wall, the improvement which comprises the spacing element of each of said filter bags terminates before the partition wall, and is loosely supported thereat by the rigid parts of said sealing frame, at least one vertical spring-borne auxiliary wall extending freely and parallel to the rear wall of the housing for supporting said filter bags at the closed extremity thereof, and an intermittently operable oscillation generator coupled to said at least one auxiliary wall for oscillating the same, said filter bags being releasably connected at the closed extremity thereof to said at least one auxiliary wall.