Method and arrangement for adding treatment liquors to cellulose material in a down flow vessel
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United States of America Patent
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Oct 7, 2014
Grant Date -
Mar 13, 2014
app pub date -
Mar 25, 2011
filing date -
Mar 25, 2011
priority date (Note) -
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Abstract
The method and arrangement are for adding treatment liquid to comminuted cellulose material, preferably wood chips, during the manufacture of chemical pulp in a continuous process. The process is using a down-flow vessel wherein chips are descending down the vessel in a plug flow and wherein treated chips are continuously fed out at the bottom of the vessel. By arranging at least one telescopic pipe inside the vessel that extends down into the plug flow makes it possible to adjust the position for the addition of treatment liquid depending on current operational parameters.
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