Method and apparatus for controlling a causticizing process

Details Method and apparatus for controlling a causticizing process Method and apparatus for controlling a causticizing process

D - Textiles, Paper

21

C

D21C 11/04 (2006.01) D21C 11/00 (2006.01) G05B 17/00 (2006.01) G05B 17/02 (2006.01)

Patent

CA 2374907

A method and an apparatus for controlling a causticizing process, the process comprising slaking (1), causticizing (2) and white liquor preparation (3). The slaking (1) is carried out using a slaker (4) into which green liquor and lime is fed to produce lime milk. The causticizing process is controlled by applying a model that describes at least a part of the causticizing process.

L'invention concerne un procédé et un dispositif permettant la régulation d'un processus de caustification, ce dernier comprenant les étapes suivantes : extinction (1), caustification (2) et préparation (3) de lessive blanche. L'extinction est exécutée au moyen d'un dissolveur (4) à chaux dans lequel on introduit de la lessive verte et de la chaux afin de produire du lait de chaux. Le processus de caustification est régulé par l'application d'un modèle qui décrit au moins une partie de ce processus.

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