Proceedings of the Ironmaking, Iron Ore and Agglomeration Seminars


ISSN 2594-357X

Title

INNOVATIVE MEASUREMENT TECHNIQUE FOR RACEWAY MONITORING

INNOVATIVE MEASUREMENT TECHNIQUE FOR RACEWAY MONITORING

DOI

10.5151/2594-357X-22287

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Abstract

When raceway conditions are changed, e.g blast parameters or selection of injection material, additional measurements and monitoring of raceway can support evaluation of the effects on raceway conditions. Two types of measurement methods have been tested during injection trials with BF flue dust at the SSAB EMEA BF in Oxelösund and the LKAB Experimental Blast Furnace (EBF®). The raceway depth was measured using microwave technique and a camera was installed for viewing the raceway when the peep hole was occupied by the depth measurements equipment. Temperature estimation was made on thermal radiation guided via an optical fibre from the raceway to a spectrometer. Evaluation methods were developed based on Planck radiation law. The measurement techniques and their use for monitoring of raceway conditions are discussed.

 

When raceway conditions are changed, e.g blast parameters or selection of injection material, additional measurements and monitoring of raceway can support evaluation of the effects on raceway conditions. Two types of measurement methods have been tested during injection trials with BF flue dust at the SSAB EMEA BF in Oxelösund and the LKAB Experimental Blast Furnace (EBF®). The raceway depth was measured using microwave technique and a camera was installed for viewing the raceway when the peep hole was occupied by the depth measurements equipment. Temperature estimation was made on thermal radiation guided via an optical fibre from the raceway to a spectrometer. Evaluation methods were developed based on Planck radiation law. The measurement techniques and their use for monitoring of raceway conditions are discussed.

Keywords

Optical fibres; Temperature measurements; Microwave techniques.

Optical fibres; Temperature measurements; Microwave techniques.

How to refer

Hyllander, Gunilla; Ökvist, Lena Sundqvist; Malmberg, Donald; Eriksson, Johan; Olsson, Erik; Zetterlund, Erik; Tarasenko., Oleksandr. INNOVATIVE MEASUREMENT TECHNIQUE FOR RACEWAY MONITORING , p. 1732-1743. In: 42º Seminário de Redução de Minério de Ferro e Matérias-primas / 13º Seminário Brasileiro de Minério de Ferro / 6th International Congress on the Science and Technology of Ironmaking, Rio de Jabeiro, 2012.
ISSN: 2594-357X , DOI 10.5151/2594-357X-22287