Method and device for regulating a flow of dilution liquid in connection with a headbox of a paper/board machine
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United States of America Patent
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Sep 1, 1998
Grant Date -
N/A
app pub date -
Dec 31, 1996
filing date -
Oct 23, 1996
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Abstract
A system for combining a dilution flow with the stock flow passed from the inlet header of the headbox of a paper/board machine. The equipment comprises a valve which regulates the dilution flow and which consists of a valve housing, of a spindle, and of a flow duct placed in the spindle, which flow duct can be rotated into different regulation positions for the purpose of regulating the dilution flow departing from the valve. One end opening of the flow duct and the flow opening in the valve housing are placed in alignment with one another irrespective of the position of rotation of the spindle. The position of the other end opening of the duct placed in the spindle in relation to the flow opening in the valve housing can be regulated by rotating the spindle.
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