Information system for calculating paper-forming indicators of fibrous semi-finished products based on regression models

Abstract

The paper presents an information system for calculating the main paper-forming parameters of the pulp for given technological and design parameters of the grinding plant. The operation of the system is based on mathematical regression models of the processes that were obtained in the course of experimental studies of knife sets of various types. As input parameters in these models, the rotor speed, knife gap, concentration and degree of grinding of the mass are used. The output parameters are the grinding time, water retention capacity and average fiber length. The developed information system is a network web application with a modular structure. The modules are united by the main interface for the user. Each module implements a regression model for a specific type of headset. At the moment, the system has two modules for calculating the parameters of a percussion type headset and a headset with a curvilinear shape of knives. In the future, it is planned to add the ability to calculate indicators for headsets of other designs. It will also add the ability to solve optimization problems by finding the minimum or maximum value of the output parameters.

Use of a knifeless grinding plant for waste paper recycling

“…Since in the works of Yu. D. Alashkevich and R. A. Marchenko [6] it was found that knifeless refining has a more gentle, gentle effect on the recycled fiber, which is especially important for a fibrous suspension from waste paper, which has already undergone a refining stage once. Therefore, it can be assumed that the paper-forming properties of the fibrous mass will deteriorate less intensively when recycling using this installation.…”