Appeal No. 1998-3055
Application No. 08/631,591
at least two low momentum oxy-fuel burners located in at
least one of the walls of the glassmelting furnace, each burner
having at least one gas exit port, the lowest point of each gas
exit port of each burner having a vertical position that is
raised to a height of about 18 inches to about 36 inches above
the surface of the glass;
each oxy-fuel burner generating a flame along a path
directed towards an opposite vertical wall of the glassmelting
furnace; and
said interior intersection of said walls and said crown of
said glassmelting furnace being located at a height of between
about 5.5 feet and 9 feet above the glassmelting surface.
5. A glassmelting method which reduces alkali corrosion in
a glassmelting furnace with oxy-fuel burners comprising:
A) providing glassmaking materials including alkali species
into the glassmelting furnace;
B) providing fuel and oxidant into the furnace through the
oxy-fuel burners located in a staggered formation in the furnace
and having a height of about 18 inches to about 36 inches above
the surface of the glass surface;
C) combusting the fuel and oxidant therein to provide heat
to the glassmaking materials to form molten glass; and
D) minimizing alkali concentration near the crown by
positioning of flue ports below the burner level near the burner
or the opposite wall along the path of each burner flame.
THE REFERENCES
Lauwers 5,139,558 Aug. 18, 1992
Castelain et al. (Castelain) 5,147,438 Sep. 15, 1992
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