Optical emission spectroscopy as a method to improve the process automation of electric arc furnaces and ladle furnaces

IFAC-PapersOnLine, vol. 55, pp. 78–83

Abstract

The steel industry is on its way towards more environmentally friendly steelmaking. To achieve the ambitious goals of significant CO2 emissions reduction, new processes, practices, sources of on-line data, and digitalization together with automation will be required. To address these issues, this paper discusses optical emission spectroscopy (OES) as an on-line data acquisition method for industrial electric arc furnaces and ladle furnaces. The current state of the OES as a measurement method in the steel industry together with prospects of new applications are presented with examples based on the authors’ prior research.

Authors 6

1. Henri Pauna corresponding

   University of Oulu

   Affiliation as printed

   Process Metallurgy Research Unit, P.O. Box 4300, FI-90014, University of Oulu, Finland

2. Matti Aula
   Affiliation as printed

   Luxmet Ltd, Paavo Havaksen tie 5 D, 90570 Oulu, Finland

3. Thomas Willms Aachen Department of Industrial Furnaces and Heat Engineering

   RWTH Aachen University

   Affiliation as printed

   RWTH Aachen University, Department of Industrial Furnaces and Heat Engineering, Kopernikusstrasse 10, 52074 Aachen, Germany

4. Thomas Echterhof Aachen Department of Industrial Furnaces and Heat Engineering

   RWTH Aachen University

   Affiliation as printed

   RWTH Aachen University, Department of Industrial Furnaces and Heat Engineering, Kopernikusstrasse 10, 52074 Aachen, Germany

5. Marko Huttula

   University of Oulu

   Affiliation as printed

   Nano and Molecular Systems Research Unit, P.O. Box 3000, FI-90014, University of Oulu, Finland

6. Timo Matti Juhani Fabritius

   University of Oulu

   Affiliation as printed

   Process Metallurgy Research Unit, P.O. Box 4300, FI-90014, University of Oulu, Finland