Dewatering device
AssigneeMetso Paper, Inc.
InventorsMagnus Danielsson, Jörgen T Lundberg
Life of this patent
Estimating the term…
Abstract
Apparatus for pressing liquid from a liquid containing material is disclosed including a pair of juxtaposed rotary rolls forming a nip, at least one of the rolls being liquid permeable, that roll including an abduction surface extending laterally across the roll so that a portion of the liquid stream pressed out form the liquid containing material passing through the nip runs along the abduction surface, a liquid collector for collecting that portion of pressed out liquid extending laterally across the roll and including a liquid inlet for the pressed out liquid stream, and a return flow protector for preventing the pressed out liquid stream from rewetting the reduced liquid material formed in the nip.
Claims7
Apparatus for pressing liquid from a liquid-containing material comprising a pair of juxtaposed rotary rolls forming a nip therebetween, at least one of said pair of juxtaposed rotary rolls being liquid permeable, whereby said liquid-containing material can pass downwardly toward said nip between said pair of juxtaposed rotary rolls for pressing said liquid from said liquid-containing material thereby providing a pressed-out liquid stream and a liquid reduced material, said at least one of said pair of juxtaposed rotary rolls including an abduction surface extending laterally across said at least one of said pair of juxtaposed rotary rolls whereby at least a portion of said pressed out liquid stream runs along said abduction surface, liquid collection means for collecting said portion of said pressed-out liquid stream extending laterally across said at least one of said pair of juxtaposed rotary rolls, said liquid collection means including a liquid inlet for said pressed-out liquid stream, and return flow protection means for preventing said pressed-out liquid stream from re-wetting said reduced liquid material.
Dependencies are inferred from the claim text.