ARRANGEMENT FOR MIXING STEAM INTO A FLOW OF CELLULOSE PULP
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United States of America Patent
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Issued Date -
Feb 26, 2009
app pub date -
Sep 26, 2006
filing date -
Sep 28, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention concerns an arrangement to counteract problems associated with mixing in steam into a pipe that is transferring a flow of pulp of medium consistency. The arrangement comprises a chamber (101) with a cross-sectional area (A3), and a pre-determined length (x). The chamber (101) is in connection, upstream to the flow of pulp, with a first throttle section (107) that has a cross-sectional area (A1). The addition of steam through supply means (105) takes place in the first throttle section (107). The chamber (101) is in connection, downstream to the flow of pulp, with a second throttle section (122) that has a cross-sectional area (A2). The cross-sectional area (A3) of the chamber is greater than the cross-sectional area (A1) of the first throttle section and the cross-sectional area (A2) of the second throttle section. The decrease in area between the cross-sectional area (A3) of the chamber and the cross-sectional area (A2) of the second throttle section takes place instantaneously, in one single step.
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