| Issue |
Rev. Met. Paris
Volume 88, Number 9, Septembre 1991
|
|
|---|---|---|
| Page(s) | 905 - 911 | |
| DOI | https://doi.org/10.1051/metal/199188090905 | |
| Published online | 25 January 2017 | |
Blast furnace tapping flow measurement*
Mesure du débit de coulée au haut fourneau
For measuring the hot metal flow out of the blast furnace into a torpedo ladle, an opto-electronic measuring system is developed. The two slots of a code plate, fixed on a stable point on the torpedo ladle, are projected onto the photo diode array of a Reticon camera by direct light. During tapping, the springs in the sleeve bearings of the torpedo ladle will be compressed and the code plate moves down vertically.
The absolute resolution of the measurement system is 0.3 mm (which is approximate 3 tons). Since the middle of 1990, two of the three tap holes of blast furnace 5 of Hoogovens IJmuiden are provided with this system.
© La Revue de Métallurgie 1991
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