Melter characteristics for different glass tanks Flashcards

1
Q

How much of glass produced is melted in gas fired regenerative furnaces?

A

~ 90%

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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

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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

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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)

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5
Q

What glasses are regenerative fuel fired melters used for?

A

~ aluminosilicate glasses, around 1700C

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