Magnetic disk separator with scraper means

Claim 1

Magnetic separator comprising a rotatable shaft, a plurality of substantially parallel filter discs which are attached along said shaft and located in planes substantially perpendicular thereto with gaps between the discs for passage of medium which is to be cleaned, said medium when entering the separator containing a ferromagnetic particulate material, said discs containing permanent magnets producing local magnetic field inhomogeneities in the gaps between the discs and the separator being provided with a scraper means for the particulate material which adheres to the discs when the medium passes the gaps, wherein the scraper means comprises a plurality of stationary upwardly open channel members having their opposite edges engaging opposed faces of the discs, and a plurality of endless transport belts which run within the channel members and enter the gaps between the discs and extend outside the discs to a point of discharge of the particulate material, said separator having means to drive the shaft of the separator and the transport belts, said transport belts surrounding the separator shaft and having upper and lower runs, said upper runs moving outwardly with respect to the discs.