A METHOD AND A SYSTEM FOR CONTROLLING A REFINER, FOR REFINING A PRODUCT CONTAINING CELLULOSE, SUCH AS PULP, AND AN INFORMATION OF A QUALITY INDEX OF THE PRODUCT

摘要

The present invention relates to a method and a system for controlling a refiner, grinder or the like for refining a product containing cellulose, such as pulp. A quality index specific to the product is provided and related to at least one predefined property of a slurry containing the cellulose product, or a finished product made of it. Control signals in response to the quality index is generated to achieve a desired value of the predetermined property, and at least one operating parameter of the refiner is set accordingly. The predefined property is either the tensile strength of said finished product or the Canadian Standard Freeness (CSF) of the slurry.