Biocide control in paper making
AssigneeKemira Oyj
InventorsJaakko EKMAN, Marko KOLARI, Anu JAAKKOLA
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Abstract
A method for controlling paper making includes monitoring (302) a surface level of a fibrous suspension in a storage, and identifying (303) that the surface level has decreased so that at least one emptying criterion is met and thereafter identifying that the surface level has increased so that at least one refilling criterion is met, and responsively to the identifying that the surface level has increased so that the at least one refilling criterion is met, starting to dose a biocide agent into the fibrous suspension entering the storage. A corresponding apparatus and computer program are disclosed.
Claims20
A method for controlling paper making, comprising
- monitoring a surface level of a fibrous suspension in a storage, and
- identifying that the surface level has decreased so that at least one emptying criterion is met and thereafter identifying that the surface level has increased so that at least one refilling criterion is met, and
- responsively to the identifying that the surface level has increased so that the at least one refilling criterion is met, starting to dose a biocide agent into the fibrous suspension entering the storage.
Dependencies are inferred from the claim text.