DRUM TYPE VACUUM FILTER Russian patent published in 2007 - IPC B01D33/27 

FIELD: filtering devices, possibly used in chemical, oil-chemical, biochemical, microbiological, pharmaceutical, paint and varnish making, food making industry branches needing separation of finely dispersed liquid systems, ecology improving processes for cleaning industrial and domestic sewage.

SUBSTANCE: drum type vacuum filter includes trough for suspension; drum with cells rotating in bearing assemblies and connected with distributing head; filtering partition in the form of perforated belt of elastic material; attachment for regeneration of perforated partition. Drum is in the form of helix of elastic material; bearing assemblies of drum are mounted by inclination angle one relative to other in such a way that drum surface has curvilinear profile with convex portion in regeneration zone of filtering partition and with concave portion in filtering zone.

EFFECT: improved quality of filtering and regeneration of filtering partition.

2 dwg