Method for preventing clogging in a strainer construction for a continuous digester
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United States of America Patent
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May 28, 2013
Grant Date -
Aug 25, 2011
app pub date -
Oct 12, 2009
filing date -
Oct 13, 2008
priority date (Note) -
In Force
status (Latency Note)
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Abstract
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that counteracts precipitation processes is added directly to the withdrawal compartment while the cooking fluid is withdrawn from the withdrawal compartment. The addition of chemicals can take place at the same time as the withdrawn cooking fluid is withdrawn from the digester and the strainer construction, or while the withdrawn cooking fluid is fully or partially re-circulated back to the withdrawal compartment.
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