Reduction Of Superstructure Corrosion & Emissions By Modern Glass Furnace Design & Optimised Operation

This paper shows the mechanisms of: a) The evaporation process from industrial glass melts, leading to particulate emissions and, b) the process leading to superstructure refractory corrosion and silica crown attack by glass melt vapours. Models are described to estimate the kinetics of evaporation and silica corrosion. The models can be applied to find methods for the reduction of emissions and improved silica lifetime, especially for oxygen-fired glass furnace, burner positions above the melt, crown height and temperature of the crown surface are decisive for silica crown behaviour. The models support the search for new furnace designs with lower emissions and increased silica crown service life.