Paperboard Mill Research Articles

Loss Control in a Paperboard Mill Using Waste Paper

Loss Control in a Paperboard Mill Using Waste Paper

Computerized Supervisory System of an Industrial Power Plant

The computerized data acquisition and reporting system of the heat and power generation and distribution in a large Finnish pulp and paper mill is described. The system is used for logging, alarming and performance monitoring purposes. Both measured data and data computed from basic material and heat balances are printed. Messages are prepared for periodic and on demand use, which enables efficient monitoring of energy generation and distribution in the whole mill at various levels of supervision. To facilitate a tight control of the boilers, operator's guide logs are printed by using a special monitoring program as soon as the main line steam pressure shows a permanent deviation from the desired value. The reporting system is carried out on an IBM 1800 computer, which also is used for process control and supervision of the pulp and paperboard mill and some other applications.