Process for manufacturing technical glass and burner for implementing such a process
AssigneeL'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
InventorsPierre Bodelin, Patrick Recourt, Takashi Oguro, Kazuyoshi Nakano, Toshi Takaha, Hiroyuki Tanaka
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Abstract
Provided is a process for the manufacture of technical glass. The process includes, heating a glass bath with at least one flame, wherein the at least one flame is a non-hard flame which is blue in color and includes substantially no reducing species.
Claims9
A process for the manufacture of technical glass, comprising heating a glass bath with at least one flame, wherein at least one of the at least one frame is a non-hard flame which is blue in color and includes no reducing species and;
- feeding gas from a source into a combustion zone having a central duct for feeding oxidant and having a diameter D1, an intermediate annular duct for feeding fuel and having an internal diameter D2 and a peripheral annular duct for feeding oxidant and having an internal diameter D5, said ducts being disposed in a coaxial arrangement, wherein an outlet end of said central duct is set back with respect to the outlet end of said peripheral annular duct by a distance h of between 0 and 1.5D1.
A process for the manufacture of technical glass, comprising heating a glass bath with at least one flame, wherein at least one of the at least one flame is a non-hard blue flame which is free of reducing species, and supplying an oxidant in an equal or greater stoichiometric quantity than needed to burn all the fuel supplied to form said non-hard blue flame and;
- feeding gas from a source into a combustion zone having a central duct for feeding oxidant and having a diameter D1, an intermediate annular duct for feeding fuel and having an internal diameter D2 and a peripheral annular duct for feeding oxidant and having an internal diameter D5, said ducts being disposed in a coaxial arrangement, wherein an outlet end of said central duct is set back with respect to the outlet end of said peripheral annular duct by a distance h of between 0 and 1.5D1.
Dependencies are inferred from the claim text.