Device and method for melting glass
AssigneeMesser Griesheim GmbH
InventorJohannes Vetter
Life of this patent
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Abstract
When waste glass that is strongly laden with organic impurities is melted, the organic constituents present in the melt give rise to so-called “black hearts” which can no longer be eliminated in a subsequent refining process, thus impairing the quality of the glass. According to the invention, gas nozzles for introducing oxygen are installed in the area of the inlet opening of a melting unit thermally connected to a combustion chamber. This allows a targeted oxidation of the organic constituents, which are then exhausted in the form of exhaust gas. With the invention, even highly contaminated waste glass such as, for instance, glass fibers, can be returned to the production process.
Claims20
(Canceled)
2-10 (Canceled)
a device to melt glass, having a melting unit that is thermally connected to the combustion chamber and that is provided with an inlet opening through which parts to be melted are fed in as well as with an outlet opening for the molten material, characterized in that the melting unit has at least one gas feed member selected from the group consisting of a gas nozzle and a gas lance to feed in a reactive gas.
A method to melt glass, in which substances are fed into a melting unit and then melted under the effect of the heat generated by a heating device that is thermally connected to the melting unit and then conveyed in liquid form to a further processing operation, characterized in that the fed-in substances in the melting device are exposed to a reactive gas, for instance, oxygen, before or during the melting procedure.
Dependencies are inferred from the claim text.