Ceramics-Silikáty 39 (3) 81-86 (1995)

SOME CRITICAL POINTS OF THE GLASSMELTING PROCESS, PART 1 - DISSOLUTION PHENOMENA

L. Němec

The simple relations expressing the influence of temperature, glass composition, sand granulometry and glass convection on the dissolution time of polydisperse sand have been presented to demonstrate the significance of these factors on the dissolution phenomena in glass melting. The theoretical equations have been compared with available experimental data. The results have shown the primary significance of the initial particle size, temperature and intensity of glass stirring. The applications of optimum conditions faces some critical points of the process as is corrosion of refractory materials at extreme conditions, fast heating the glass batch to the maximum temperature and glass flow arrangement inside of the glass melting space.