An Expert System for Single Circuit Pulp Consistency Control

Pulp consistency is an important value in paper making process, especially the consistency before the head box, which determines the paper quality. Conventional PID algorithm is used widely in the consistency control system, but the change of pulp-motor´s speed and the shake of pulp´s consistency may move the consistency out of the set-point. A fuzzy expert system based on experience is proposed here. Finally, the expert system was used in an actual system. The results show that good monitoring effect can be achieved.