Arrangement and Method for Treatment of Cellulose Pulp Involving Means for Seal Adjustment

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United States of America Patent

PATENT NO 7695591
APP PUB NO 20090078382A1
SERIAL NO

11921485

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Abstract

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A washing arrangement for washing and dewatering of cellulose pulp is disclosed, comprising a rotatable drum having a plurality of outer compartments defined by axial compartment walls distributed along the circumference of the drum, a stationary cylindrical casing that encloses the drum, whereby an annular space is defined between the casing and the drum and longitudinal seals extending in the axial direction of the drum divide the annular space into zones for forming, washing and discharge of the pulp. The function of the longitudinal seals is optimized by units for seal adjustment having force sensors for measuring a force acting on one of the longitudinal seals in the direction from the drum, and positioners for automatically moving the longitudinal seal substantially in the radial direction of the drum according to a predetermined pattern based on the measured force.

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Patent Owner(s)

Patent OwnerAddress
VALMET TECHNOLOGIES INCKEILASATAMA 5 ESPOO FI-02150

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bylander, Johan Sundsvall, SE 14 47
Henriksson, Magnus Sundsvall, SE 13 64
Lundberg, Jörgen T Sundsvall, SE 7 11
Mattsson, Stefan Kvissleby, SE 3 13

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