State of the papermaking process and its measurement From the control perspective, the main component of the state of the papermaking process is the amount and composition of material flows in pipes and volumes in chests and towers. In aggressively agitated chest volumes, the material composition can be assumed uniform throughout the volume whereas in
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State of the papermaking processes and its measurements
After reading this article you will..
- learn the main process variables and their measurement systems in the paper machine.
- study the requirements for the main measurements in the paper machine.
Content
Process control and automation
- Introduction to process control and automation
- Development of process automation
- Fibre process automation
- Chemical recovery as a control object
- Advances in paper machine automation
- Paper machine as a dynamical system
- Tasks in paper machine control and management
- Control of stock flow concentration and quality
- Machine direction control
- Cross-directional control – The static optimisation
- Cross-directional control – Dynamics
- Cross-directional control – further aspects
- Controlling functional paper properties
- Managing grade chances in the paper machine
- Managing disturbances caused by broke and recovered solids
- Millwide systems
- Modelling and control methods
Authors & references
Edited by:
Risto Ritala, Tampere University
Based on: Ritala, R., Managing paper machine operation (Chapter 8). In: Leiviskä, K. (ed), Process and Maintenance Management, (Book 14), Papermaking Science and Technology. 2nd edition. Jyväskylä, 2009, Paper Engineer’s Association/Paperi ja Puu Oy. pp. 189–234.
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This page has been updated 15.11.2020
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