Patent ID: 6398914
Filing Date: 2002-06-04
Classification: D21B,D21C,D21D,Y02W

Abstract:
A method for process management in the production of pulp and/or paper, the method comprising the steps of:registering the spectral characteristic values from at least starting materials in the production of pulp and/or paper, the starting materials being either one of a primary raw material wood or a secondary raw material waste paper; evaluating with a neural network the spectral characteristic values from at least the starting material and deriving statements about the product quality of the starting materials including determining an age of the raw material wood; deriving controlled variables for an operating temperature of a pulp digester based on the age of the raw material wood; continuously conveying the starting materials passed the measuring device for registering the spectral characteristic values of the starting materials; and deriving from the spectral characteristic values control variables for operating at least one operating means used in the production of pulp and/or paper and statements about the product quality of the starting materials.