特に透明ガラス又は超透明ガラスのための、側面二次再循環を備えたガラス炉

摘要

Glass furnace for heating and melting materials to be vitrified, in which furnace two molten glass recirculation loops are formed in the bath between a hotter central zone of the furnace and, respectively, the inlet (E) and the outlet (Y) which are at a lower temperature; the furnace comprises lateral cooling means (12a), (12b) so as to create or strengthen lateral secondary recirculation rolls (B2La), (B2Lb) of the glass.