Method and apparatus for pumping cellulose pulp

Details Method and apparatus for pumping cellulose pulp Method and apparatus for pumping cellulose pulp

1996-12-20

1998-12-22

Silverman, Stanley S.

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Charging and/or discharging fibrous material

162246, 162 57, D21C 708

Patent

active

058513507

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.

REFERENCES:
patent: 2960161 (1960-11-01), Richter
patent: 3096234 (1963-07-01), Armstrong et al.
patent: 4884943 (1989-12-01), Niskanen
patent: 5106456 (1992-04-01), Voitto et al.
patent: 5411633 (1995-05-01), Phillips et al.

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