APPARATUS AND METHOD FOR SLURRY DEWATERING BY EVAPORATION

摘要

Applicants have discovered a new method of manufacturing a plenum for slurry dewatering by evaporation. The method comprises using high energy beam welding to provide a more even plenum surface and another surface that can be welded from an outer side of the surface. Applicants have also discovered a new slurry handling device having a rear portion comprising a rotating brush for spreading non-dewatered slurry on a plenum surface and a forward portion comprising a rotating brush for removing dried slurry from the plenum surface. The dewatering device comprises a motion system for creating relative motion between the plenum surface and the slurry handling device. A plurality of slurry handling devices and plenums can be used in an enclosed area where a motion system is adapted to move essentially in a forward and backward longitudinal direction; simultaneously over a plurality of plenum surfaces to dewater the slurry.