Method and apparatus for pumping cellulose pulp
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United States of America Patent
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-
Dec 22, 1998
Grant Date -
N/A
app pub date -
Dec 20, 1996
filing date -
Dec 27, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Pumping of medium consistency cellulose pulp is effected from stand pipes or like small sized pulp vessels to which pulp is normally discharged from storage towers, treatment towers, washers, filters, presses, thickeners, or the like, particularly pumping of high temperature pulps from said stand pipes. A pump inlet is attached to a discharge opening of a stand pipe, pressurizing cellulose pulp in said stand pipe by closing the stand pipe off from the atmosphere, maintaining a superatmospheric pressure in the stand pipe, allowing the cellulose pulp to flow into the pump through the pump inlet, and pumping the cellulose pulp further using the pump.
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