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Blast Furnaces
Detail: Authors: Ron van Oudenallen, Egenolf van Stein Callenfels, Maarten Geerdes, Geert Jan Gravemaker, Jennifer Wise, Ton SpieringA chilled blast furnace is one of the most serious disruptions in an integrated steel plant, as it might take weeks to bring the furnace back to normal production. During a hearth chill, liquids cannot be tapped since the temperature in the lower part of the furnace has become too low. The connection between the taphole and tuyeres has been lost, primarily owing to solidification of slag. This solidified slag obstructs the flow of liquids into the hearth. If a chill is very severe........more

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