Improvements in rotary-drum filters.

摘要

The invention relates to an improved filter of the type normally comprising a rotating drum (1) onto which fluid to be filtered is poured and to whose outer lateral surface those solid bodies requiring separation may cling; the filter further comprises a blade (2) placed in tangential contact with the lateral surface aforesaid of said drum and designed to remove solid bodies deposited thereon during the course of the drum's being caused to rotate; said filter being equipped with drive means serving to establish relative movement between blade and drum in a direction opposed to that set up between the same elements during normal operation of the filter.