Melter characteristics for different glass tanks Flashcards
1
Q
How much of glass produced is melted in gas fired regenerative furnaces?
A
~ 90%
2
Q
What kinds and percents of which glasses are produced in the US?
A
~ 33% soda lime containers, 8% soda lime flat glass, 22% fiberglass, 37% specialty glass
3
Q
What’s the composition of soda lime containers and flat glasses? How are they made?
A
~ Na2OCaO6SiO2
~ AZS refractories are used with max temp ~1600C, melter life of 8-10 years
4
Q
What glasses are cold top melters used for?
A
~ PbO-containing glasses to avoid PbO emissions
~ borosilicate glasses (pyrex) to reduce emissions (~1600C)
5
Q
What glasses are regenerative fuel fired melters used for?
A
~ aluminosilicate glasses, around 1700C