A method of modeling, predicting and controlling TMP pulp properties

Author

Schwartz, Howard M. ; Chang, Gee-Kung ; Liu, Yanbing ; Phung, Timothy

Author_Institution

Dept. of Syst. & Comput. Eng., Carleton Univ., Ottawa, Ont.

fYear

1996

fDate

15-18 Sep 1996

Firstpage

846

Lastpage

851

Abstract

This article proposes a method for the modeling and control of a two stage thermo-mechanical pulping process (TMP). Experimental data was collected from operational refiners without affecting the pulp production and with no modifications to the facility. The experimental data is used to identify the model parameters. The model predicts refiner motor load and the pulp properties of Canadian standard freeness (CSF), shive content and long fibre content as a function of the production rate, the infeed dilution water flow rate and the refiner plate gaps. The model of the plant is used as a guide, whereby the plant operators can predict the future output pulp properties

Keywords

paper industry; parameter estimation; process control; Canadian standard freeness; infeed dilution water flow rate; long fibre content; production rate; pulp production; pulp properties; refiner motor load; refiner plate gaps; shive content; thermo-mechanical pulping process; Distributed control; Feeds; Load modeling; Measurement units; Predictive models; Production; Refining; Thermal variables control; Thermomechanical processes; Water;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Applications, 1996., Proceedings of the 1996 IEEE International Conference on

Conference_Location

Dearborn, MI

Print_ISBN

0-7803-2975-9

Type

conf

DOI

10.1109/CCA.1996.558977

Filename

558977