Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Continuous chemical treatment or continuous charging or...
Reexamination Certificate
2004-12-23
2008-12-02
Fortuna, José A (Department: 1791)
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
Continuous chemical treatment or continuous charging or...
C162S052000
Reexamination Certificate
active
07459058
ABSTRACT:
Chips are sluiced from a low-pressure section to a high-pressure section with a sluice feeder. The fluid that is used to expel the chips from the sluice feeder principally includes pressurized fluid withdrawn from the treatment vessel. This pressurized fluid is normally withdrawn from the treatment vessel for recovery (REC). By using this pressurized fluid instead for expelling the chips from the sluice feeder and subsequently sending the previously pressurized fluid to the recovery system (REC), the requirement for high pressure pumps that consume large quantities of electrical energy can be considerably reduced.
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Fasth Rolf
Fasth Law Offices
Fortuna José A
Metso Fiber Karlstad AB
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