Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – With cleaning – preserving or conditioning of apparatus
Patent
1995-01-25
1996-07-16
Lacey, David L.
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
With cleaning, preserving or conditioning of apparatus
162 17, 162 52, 162 55, 162251, 162243, 162248, 210388, 210456, D21C 322, D21C 708, D21C 712, D21C 714
Patent
active
055363679
ABSTRACT:
A pulp digester having a number of screening/cleaning units mounted within the digester. Each unit has a screen member and a cleaning propeller which is mounted adjacent the inner surface of the screen member. There is for each unit a hydraulic motor which is positioned entirely within the digester housing, and which rotates the propeller. Hydraulic lines extends through sealed openings in the digester wall and power is supplied from an exterior hydraulic pump which is controlled by a valve.
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Fortuna Jos'e A.
Lacey David L.
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