Glass manufacturing – Processes – Fining or homogenizing molten glass
Patent
1996-12-16
1998-12-29
Silverman, Stanley S.
Glass manufacturing
Processes
Fining or homogenizing molten glass
65346, 65347, 432195, 432196, C03B 5435
Patent
active
058534482
ABSTRACT:
Method of heating the charge of a glass furnace in which at least one burner is placed in a wall of a furnace so as to heat the bath of glass, characterized in that at least one assembly consisting of a first and a second burner which are fed with fuel gas and with oxidizer gas containing at least 50 vol. % of oxygen is arranged in one of the walls of the furnace at a distance (D) at least equal to approximately 3 meters from each other, in that an oxygen lance is arranged between the first and second burners, the first burner, the second burner and the lance forming a combustion assembly and in that from approximately 30 vol. % to approximately 80 vol. % of oxidizer gas is sent into the lance and from approximately 20 vol. % to approximately 70 vol. % of oxidizer gas is sent to the first and second burners in substantially equal proportions, so as to create a retarded combustion of the fuel and oxidizer gases and to extend substantially the length of the flame compared with the length of the flame obtained with no oxidizer gas injected into the lance.
REFERENCES:
patent: 4909733 (1990-03-01), Yap
patent: 5242296 (1993-09-01), Tuson et al.
"Development of a Low-Emission, Multi-fuel Oxygen Burner", C. Taylor, Glass Industry, vol. 76, No. 9, Aug. 1995, pp. 18-26.
"Non-Axisymmetric Jet Oxygen Lancing", L. Yap, Ceramic Engineering and Science Proceedings, vol. 11, 1990, pp. 175-194.
Duboudin Jean-Thierry
Duchateau Eric
Jouvaud Dominique
Lepoutre Etienne
Philippe Louis
L'Air Liquide, Societe Anonyme pour L'Etude et L'Exploitation de
Silverman Stanley S.
Vincent Sean
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