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
Wood handling measurements The raw material comes usually to the mill by trains, trucks and ships. Floating of trees is still in use in some places. Transport type shares can vary remarkably mainly based on the geographical location of the mill. Measuring and inspection of the incoming raw material typically occurs at the wood receiving
Authors & references
Authors:
Ari Isokangas, University of Oulu
References:
- Mabema. GPV – A revolutionary way of measuring woodpiles on trucks. [Online] Available from: https://mabema.se/en/wood-gpv/ [Accessed 3rd March 2020].
- Codator Oy. Codator Modus 2000 (In Finnish). [Online] Available from: http://www.codator.fi/m2000.php [Accessed 3rd March 2020].
- Oosom Oy. Taljari (In Finnish). [Online] Available from: https://www.oosom.fi/taljari-mittaa-kuorman-tilavuuden [Accessed 3rd March 2020].
- Woodtech. Volume and biometric measurement of loads in moving trucks. [Online] Available from: http://www.woodtechms.com/ [Accessed 3rd March 2020].
- Finlex. Viranomaisten määräyskokoelmat. 18.12.2013 498/62/2013. In Finnish [Online] Available from: http://www.finlex.fi/fi/viranomaiset/normi/404001/41503. [Accessed 3rd March 2020].
- Teknosavo Oy. High technology solutions from gate to digester. [Online] Available from: https://teknosavo.fi/en/solutions/ [Accessed 3rd March 2020].
- Isokangas, A., Sorsa, A. and Tuomaranta, M. 2006. The use of image and sound analysis defining the state of debarking drum. Proc. Control Systems 2006, Tampere: 263–268.
- Metso Paper. Woodhandling. GentleMatic™ Total optimization of debarking. [Online] Available from: http://ceeind.com/public/data/companyCatalogue1224056102.pdf [Accessed 3rd March 2020].
- ANDRITZ. WoodScan – The solution for measuring the debarking degree in real time. [Online] Available from: https://www.andritz.com/products-en/automation/automation/wood-scan-debarking [Accessed 3rd March 2020].
- Valmet. Best possible cleanliness and economy with Valmet’s debarking system. [Online] Available from: https://www.valmet.com/pulp/wood-handling/debarking/?page=1 [Accessed 3rd March 2020].
- Kouvo automation. WEIGHTRAC 31. Radiation-based sensor for mass flow detection. [Online] Available from: https://www.kouvo.fi/sites/default/files/WT31%2038259-EN.pdf [Accessed 3rd March 2020].
- Isokangas, A. 2010. Analysis and management of wood room. Doctoral Thesis. University of Oulu, Oulu, 106.
- Niiranen, M. 1983. Kuitupuun tehdaskäsittely. In: Virkola N. E. (toim.) Suomen paperi-insinöörien yhdistys r.y. Puumassan valmistus, 1. osa, 2. painos, Turku, Oy Turun Sanomat:125-258. (In Finnish).
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This page has been updated 05.11.2020