| 摘要 |
1. Filtration system (1) for removal and/or recuperation of fine particulate solids from a gas stream (A), notably from an air stream in textile processing, comprising a separator (11) internally impinged via a blower or exhaustor by a gas stream (A) that contains the solids ; a filter drum (12) provided with a stationary cylindrical and gas-pervious filter jacket (120) ; and an approximately axially arranged rotating hollow shaft (13) connected to a drive (19), said shaft being connected rigidly in radial direction with a least one suction nozzle (15) for sucking-off solids deposited at the inner surface of the filter jacket (120) by means of a suction device (32) through the suction nozzle (15) and the hollow space (130) of the hollow shaft (13), characterized in that the at least one suction nozzle (15) is connected to the hollow shaft (13) by means of at least one sliding device (14) which is supported on the hollow shaft (13) rigidly in radial direction but slidingly in axial direction, and that an installation (16) connected rigidly for rotation with the hollow shaft (13) transforms the rotational movement of the hollow shaft (13) caused by the drive (19) into axially oscillating movements of the sliding device (14) so that the at least one nozzle (15) connected by flexible conduit (151) with the hollow space (130) is guided along a wave-like path over the inner surface of the filter jacket (120). |
