Patent ID: 6592721
Filing Date: 2003-07-15
Classification: D21F

Abstract:
An apparatus comprising:a rotating cylindrical shell with an inner circumferential surface defining an inner volume, a multiplicity of through-holes being formed in said shell; a suction box mounted in said inner volume for applying a suction force to said through-holes for receiving water from outside said rotating cylindrical shell; and a dewatering apparatus mounted in said inner volume and comprising an inlet for receiving pressurized gas and an outlet for emitting said received pressurized gas, said outlet being in the form of an elongated slot that is disposed so that the gas flow exiting said slot is substantially normal to and impinges upon said inner circumferential surface at a circumferential position downstream from said suction box, said dewatering apparatus emitting gas with sufficient velocity to eject residual water or debris outwardly from through-holes that pass in front of said elongated slot.