Device and method for melting glass
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United States of America Patent
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-
Nov 20, 2007
Grant Date -
Nov 4, 2004
app pub date -
Nov 30, 2001
filing date -
Dec 7, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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