Patent ID: 8623211
Filing Date: 2014-01-07
Classification: B01D,C02F

Abstract:
1. A filtering and condensing apparatus of a suction type comprises a sludge tank for containing sludge to be filtered and condensed, and a plurality of filtering plates aligned with each other so as to be disposed to be adjacent to each other in the sludge tank, said apparatus further includes a means for sucking said filtering cloth through said filtering chamber, a means for expanding said filtering cloth through said filtering chamber, and a means for constantly applying a tension force to each of the filtering plate, which means is disposed to be over a periphery of each filtering plate, characterized in that each filtering cloth is divided in a lateral direction of a corresponding filtering plate by a plurality of vertically extending seams to form multiple divided zones, in each of which zone each filtering chamber is formed, and a lateral length of a portion of each filtering cloth divided by the adjacent seams is set to be longer than a lateral length of a portion of the supporting plate corresponding to a corresponding zone over an entire vertical direction, whereby each zone includes an expanding margin upon the expansion of a corresponding filtering cloth, said apparatus being further characterized in that a filtering frame is provided around an outer periphery of each filtering plate so as to surround the filtering plate, an upper portion of each filtering cloth is suspended and supported from an upper portion of a corresponding filtering frame, and a weight member is provided below a lower portion of each supporting plate, wherein the weight member is adapted to be suspended from a U-shaped body which is connected to the lower portion of the supporting plate such that the lower portion of the supporting plate and a lower portion of the filtering frame are interposed between two arms of the U-shaped body being oriented upwardly, and the lower portion of the supporting plate is connected to the two arms with a connecting rod, whereby a tension force is applied to the filtering cloth in a downward direction due to the weight member.