Filter media playback device of vacuum filtration machine

摘要

PROBLEM TO BE SOLVED: To provide a filter medium reproducing device for removing the clogging matter of a filter medium using a brush roll, in a cylindrical rotary vacuum filter using a metal filter medium.;SOLUTION: In the vacuum filter (1) wherein the metal filter medium (10) is provided over a large number of the filter chambers provided to the peripheral part of a vacuum drum (2), under tension, the brush roll (12), of which both ends are supported on a raw liquid tank (3) by shafts, is arranged in parallel to the shaft (2b) of the vacuum drum (2) and the roller parts (12a) provided to both ends of the brush roll (12) are pressed to the side plates (2a) of the vacuum drum (2) to rotate the brush roll (12) at the same peripheral speed as the side plates (2a) by the rotary force of the vacuum drum (2). Since the outer diameter of the side plates (2a of the vacuum drum (2) is made larger than that of the filter chambers (4) over which the metal filter medium (10) is provided under tension, differential velocity is generated between the peripheral speed of the filter chambers (4) and that of the brush roll (12). The clogging matter of the filter medium is removed by the differential velocity to reproduce the filter medium.;COPYRIGHT: (C)2002,JPO