Figures & data
Figure 1 Models of conventional fuel-fired melter (a) and new in-flight melter (b) (capacity 800 ton day- 1).
Figure 2 Schematic of RF plasma apparatus.
Figure 3 Schematic of combined 12-phase ac arc and oxygen-burner apparatus.
Figure 4 Plasmas and flame of different heating sources: (a) RF plasma; (b) 12-phase arc plasma; and (c) oxygen burner flame.
Figure 5 SEM images of soda-lime glass powders: (a) raw material; (b) heated by RF plasma; (c) heated by 12-phase ac arc; (d) heated by oxygen burner, and alkali-free glass powders; (e) raw material; (f) heated by RF plasma; (g) heated by 12-phase ac arc; and (h) heated by oxygen burner.
Figure 6 XRD patterns of raw material and prepared powders: (a) soda-lime glass powders; and (b) alkali-free glass powders.
Figure 7 Vitrification degree of powders treated by different heating sources.
Figure 8 TG curves of raw material and prepared powders: (a) soda-lime glass powders; and (b) alkali-free glass powders.
Figure 9 Decomposition degree of powders treated by different heating sources.
Figure 10 Volatilization degree of powders treated by different heating sources.
Figure 11 Particle temperatures achieved for different heating sources.
