Process for feeding pulp into a blow tank or storage tank
AssigneeSulzer Pumpen AG
InventorsMartti Heikkila, Kari Kovasin, Karl-Erik Róberg, Olavi Toukonummi
Life of this patent
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Abstract
A method and apparatus for treating pulp being fed into a blow tank or a storage tank. A preferred embodiment is that the pulp is discharged from a batch digester (10) and fed either to the upper or lower part of a blow tank (20), depending on the consistency of the pulp being discharged from the digester.
Claims25
A method of treating pulp, by which method pulp is discharged from a process apparatus and fed into a blow tank or storage tank, wherein the method comprises:
- discharging pulp from the process apparatus and feeding the pulp to the blow tank or storage tank, wherein the pulp being fed is of varying consistency;
- feeding the pulp either to an upper part of the tank or to a lower part of the tank depending on a consistency of the pulp being fed from said process apparatus in such a manner that when the pulp is at a consistency below a certain predetermined discharge consistency it is fed into said tank through the upper part of the tank and when the pulp is at a consistency above said predetermined discharge consistency the pulp is fed into said tank through the lower part of the tank.
A method of treating pulp, by which method pulp is discharged from a process apparatus and fed into a blow tank or storage tank, wherein the method comprises:
- discharging pulp from the process apparatus and feeding the pulp to the blow tank or storage tank, wherein a consistency of the pulp changes in time;
- feeding the pulp either to an upper part of the tank or to a lower part of the tank depending on the consistency of the pulp being fed from said process apparatus in such a manner that when the pulp is at a consistency below a certain predetermined discharge consistency it is fed into said tank through the upper part of the tank and when the pulp is at a consistency above said predetermined discharge consistency the pulp is fed into said tank through the lower part of the tank.
A method of treating pulp, by which method pulp is discharged from a process apparatus and fed to a blow tank or storage tank, wherein the method comprises:
- discharging pulp from the process apparatus and feeding the pulp to the blow tank or storage tank, wherein the pulp being fed at various times during the method has a dilute consistency and a thick consistency;
- feeding the pulp either to an upper part of the tank or to a lower part of the tank depending on a consistency of the pulp being fed from said process apparatus such that the pulp at the dilute consistency it is fed to the upper part of the tank and pulp at the thick consistency is fed to the lower part of the tank.
Dependencies are inferred from the claim text.