Method and a device for the refining of glass
AssigneeSchott Glas
InventorsErich Rodek, Wolfgang Schmid-Bauer, Hilgegard Römer, Günter Weidmann, Werner Kiefer
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Abstract
A device for the refining of a glass melt at high temperatures according to the skull pot principle is provided. The device includes a skull crucible having walls that are constructed from a plurality of pipes, a high-frequency coil for coupling electrical energy into the contents of the skull crucible, and an inlet and an outlet of the skull crucible being arranged in a melt surface region of the glass melt, wherein the inlet and the outlet are essentially arranged lying opposite one another.
Claims16
A method for the refining of a glass melt, which is heated by irradiation of high-frequency energy, by high temperatures in a skull crucible, the method comprising:
- introducing the glass melt through an inlet in an upper region of the skull crucible;
- coupling the high-frequency energy into the glass melt of the skull crucible via a high frequency coil to heat the glass melt to a temperature of between 1,750 to 3,000° C.;
- discharging the glass melt through an outlet in an upper region of the skull crucible, the outlet being at a place essentially lying opposite the inlet;
- and
- preventing a short-circuit flow of the glass melt between the inlet and the outlet by increasing, via the high frequency coil, a temperature difference between the glass melt introduced into the skull crucible through the inlet and the glass melt in the skull crucible.
A method for the refining of a glass melt, which is heated by irradiation of high-frequency energy, by high temperatures in a skull crucible, the method comprising:
- introducing the glass melt through an inlet in an upper region of the skull crucible;
- coupling the high-frequency energy into the glass melt of the skull crucible to heat the glass melt to a temperature of between 1,750 to 3,000° C.;
- discharging the glass melt through an outlet in an upper region of the skull crucible, the outlet being at a place essentially lying opposite the inlet;
- and
- preventing a short-circuit flow of the glass melt between the inlet and the outlet by increasing a temperature difference between the glass melt introduced into the skull crucible through the inlet and the glass melt in the skull crucible by coupling the high-frequency energy into the glass melt of the skull crucible.
Dependencies are inferred from the claim text.