D - Textiles – Paper – 21 – F
Patent
D - Textiles, Paper
21
F
D21F 1/66 (2006.01)
Patent
CA 2255721
The invention concerns a method in a paper machine for arrangement of its water circulation. In view of full or partial closing of the water circulation in a paper machine, the wash waters from the fabrics and from other devices in the paper machine as well as the waters drained from the paper web to be produced are recovered selectively based on the place of origin of the waters. At least a part of said recovered different waters are cleaned, and the cleaned waters are recirculated to applications of reuse suitable in view of their washing potential in the paper-making process.
L'invention a trait à un procédé relatif au mécanisme de circulation d'eau dans une machine à papier. Compte tenu de l'isolement total ou partiel des systèmes de circulation d'eau dans une machine à papier, on récupère, de manière sélective, les eaux de lavage venant des toiles et d'autres dispositifs de la machine ainsi que les eaux drainées venant des bandes continues de papier à produire, et ce, en fonction de leurs emplacements d'origine. Une fois ces diverses eaux récupérées, on les épure, tout au moins partiellement, et on les recycle dans des secteurs de la chaîne de fabrication du papier où il est possible de les réemployer, compte tenu de leur pouvoir lavant.
Gartz Rainer
Kaijaluoto Sakari
Karlsson Markku
Suonpera Antti
Metso Paper Inc.
Sim & Mcburney
Valmet Corporation
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