All oxyfuel-fired melting is one of the most common oxygen applications in glass furnaces. It eliminates the need for combustion air and heat recovery devices, increases flame temperature, eliminates nitrogen ballast in furnace atmospheres and cuts glass furnace emissions. It is one the most efficient ways of melting glass.
Very low NOx levels and lower emissions (smaller CO2 footprint)
Improved glass quality
No air preheating necessary
Higher furnace pull rate
Increased productivity thanks to smaller variations in the combustion process
Smaller filter unit.
Custom-developed burners from Linde
We offer a range of burners to support all oxyfuel melting. The following models are the most commonly used standard systems:
COROX®-I: Ceramic burners
COROX®-II: Highly flexible burners
CGM®: Furnace crown burner (Convective Glass Melting)
Flat-flame burner: Low momentum flame.
COROX®-I burners are very compact and robust. They are generally installed in smaller melting furnaces. To ensure maximum flexibility, we combine them with staging lances.
COROX®-II burners are designed for the most demanding requirements. They are the perfect fit for all types, shapes and sizes of furnaces. They are particularly well suited to larger furnaces where flexibility and performance are top priorities.
Performance indicators and fuels:
Benefits of COROX®-II
Different flame shapes
Different flame directions with angles of up to 10°
Adjustment during operation / adjustment devices
Low momentum and illuminous flame
Convective Glass Melting (CGM) burners
This unique oxyfuel technology transfers extra heat to the glass melt. This is because CGM burners are positioned vertically, not horizontally, which enhances the heat transfer by adding convection to regular radiant transfer. Tests have shown that combining radiant heat transfer and enhanced convective transfer almost doubles heat transfer rates in conventional burners.
Benefits of CGM burners
Increased melting capacity
Improved glass quality
Vertical burners in the crown (rather than horizontal)
Extended furnace life
Flexible number of burners (not limited by breast wall space)
Proven technology successfully deployed by companies such as Owens-Corning
Ideal for all market segments, including float glass, container and specialty glass
Can be adapted to air-fuel furnaces or 100% oxyfuel.
Flat-flame burner: A flat flame burner provides improved uniform heat distribution that
increases product quality, throughput, and extends furnace refractory life. Furthermore it increases flame radiation and very low mixing rates of oxygen and fuel streams resulting in low NOx – levels.