Method for preventing clogging in a strainer construction for a continuous digester

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United States of America Patent

PATENT NO 8449717
APP PUB NO 20110203755A1
SERIAL NO

13123294

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Abstract

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The method is for influencing the flow from a strainer construction in a continuous digester. In order to avoid clogging of the withdrawal compartment in the strainer construction, an additive that counteracts precipitation processes is added directly to the withdrawal compartment while the cooking fluid is withdrawn from the withdrawal compartment. The addition of chemicals can take place at the same time as the withdrawn cooking fluid is withdrawn from the digester and the strainer construction, or while the withdrawn cooking fluid is fully or partially re-circulated back to the withdrawal compartment.

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Patent Owner(s)

Patent OwnerAddress
METSO PAPER SWEDEN AB851 94 SUNDSVALL

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Saetherasen, Jonas Hammaro, SE 23 38

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