METHOD OF PREPARING A MELT FOR THE PRODUCTION OF MAN-MADE MINERAL FIBRES

The invention relates to a process for preparing a mineral melt in a cupola furnace that comprises, in the hot zone where the melt collects, a plurality of ceramic support bodies, with at least one plasma torch providing heat energy to the furnace. The combination of the plasma torch and ceramic sup...

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Bibliographic Details
Main Authors ELMEKILDE HANSEN, Lars, ZHOU, Haosheng
Format Patent
LanguageEnglish
French
Published 11.05.2023
Subjects
CHEMISTRY
GLASS
MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
METALLURGY
MINERAL OR SLAG WOOL
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Summary:The invention relates to a process for preparing a mineral melt in a cupola furnace that comprises, in the hot zone where the melt collects, a plurality of ceramic support bodies, with at least one plasma torch providing heat energy to the furnace. The combination of the plasma torch and ceramic support bodies reduces or substantially eliminates the need for coke to be used in the furnace. This reduces the formation of environmentally harmful gasses, such as CO and CO2, in the off-gas of the furnace. L'invention concerne un procédé de préparation d'une masse fondue minérale dans un cubilot qui comprend, dans la zone chaude où le bain de fusion se rassemble, une pluralité de corps support céramiques, au moins une torche à plasma fournissant de l'énergie thermique au four. La combinaison de la torche à plasma et des corps support céramiques réduit ou élimine sensiblement le besoin de coke à utiliser dans le four. Ceci réduit la formation de gaz nocifs pour l'environnement, tels que CO et CO2, dans le dégagement gazeux du four.
Bibliography:Application Number: WO2022EP80868