Community Research and Development Information Service - CORDIS


The probe capable of taking gas samples from the raceway of an operational blast furnace has been designed and built, together with a valve train which provides a gas-tight seal around the probe during insertion into the furnace. An existing Compair core drilling rig has been extensively modified and instrumented for use as the probe delivery system. The valve train design makes it suitable for connection to several tuyères on a furnace so that more than one raceway can be investigated. A gas analysis system has also been designed and built for raceway gas analysis. A light splitter that allows operators to view down the tuyère whilst reflecting infra-red light to a fibre-optic ratio pyrometer was also designed, manufactured, and successfully tested at the Redcar blast furnace. The transmission characteristics of armoured peephole glass have been measured and its effects on the ratio-pyrometer measurement have been studied, both theoretically and experimentally.

Additional information

Authors: TAYLOR A, British Steel, Teesside Technology Centre, Middlesbrough (GB)
Bibliographic Reference: EUR 17841 EN (1997) 72pp., FS, ECU 13.50
Availability: Available from the (2)
ISBN: ISBN 92-828-1702-4
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