Method of refining fibrous material

Details Method of refining fibrous material Method of refining fibrous material

D - Textiles, Paper

21

D

341/101

D21D 1/30 (2006.01)

Patent

CA 1303191

A B S T R A C T A method of refining fibrous material under predetermined conditions by the help of relatively rotating refining means. The material is during refining passed from the inner circumference of the refining means to their outer circumference and is thereby exposed to bending forces and axial forces. At least two variables of the refining process, such as power and gap width are measured. The measured values of the variables and their relation are used to compare them with the set point values of the predetermined refining conditions for these variables to create control signals for positioning devices for the refining means, thereby returning the refining process to the aforementioned pre- determined conditions and keeping these dependent variables constantly at these conditions.

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