B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
182/58
B01D 33/06 (2006.01) B01D 29/01 (2006.01) B01D 29/11 (2006.01) B01D 33/21 (2006.01) B01D 35/16 (2006.01) D21D 5/02 (2006.01) D21F 1/66 (2006.01)
Patent
CA 1280076
Abstract A method and an apparatus for thickening a pulp, in particular a pulp containing fibres. The pulp is thickened hydraulically while it flows through a space between two screen surfaces. Thickening on alternate screen surfaces is prevented for cleaning by closing the valves in the outlets. Pulp is removed from the screen surfaces by vanes.
508452
Ahlstrom (a.) Corporation
Gowling Lafleur Henderson Llp
Henricson Kaj
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