Skull pot for melting or refining glass or glass ceramics

Details Skull pot for melting or refining glass or glass ceramics Skull pot for melting or refining glass or glass ceramics

C - Chemistry, Metallurgy

03

B

C03B 5/02 (2006.01) C03B 5/225 (2006.01) C03B 5/44 (2006.01) H05B 6/22 (2006.01) H05B 6/24 (2006.01)

Patent

CA 2382553

The invention relates to a skull pot for melting or refining glass or glass ceramics, comprising a pot wall (1), a pot base, and an induction coil (3) which surrounds said pot wall and through which high-frequency energy can be coupled into the contents of the pot. The pot wall is made up of a ring of metal pipes (1.1) which can be connected to a cooling medium, slot-type intermediate chambers being provided between adjacent metal pipes. The pot base has a run-off for the melt. The metal pipes (1.1) that form the pot wall (1) are short-circuited with each other above the base in order to increase the degree of efficiency of the skull pot and especially, in order to even out the temperature profile of the melt throughout the depth of the melt.

L'invention concerne un creuset à fond refroidi destiné à la fusion ou à l'affinage du verre ou de la vitrocéramique. Ce creuset comprend une paroi (1), un fond; une bobine d'induction (3) qui entoure la paroi du creuset et qui injecte une énergie haute fréquence dans le creuset. La paroi du creuset est constituée d'une couronne de tubes métalliques (1.1) pouvant être reliés à un agent réfrigérant. Les tubes métalliques adjacents sont séparés par des interstices en forme de fentes. Le fond présente une décharge pour la matière en fusion. Pour augmenter le rendement du creuset à fond refroidi et notamment égaliser le profil des températures de la matière en fusion sur toute la profondeur du bain, les tubes métalliques (1.1) de la paroi de creuset (1) sont court-circuités ensemble au-dessus du fond.

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