Question:
Which Refractories are used for Crown of Glass melting furnace?
Which Refractories are used for Crown of Glass melting furnace?
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Silica refractories are commonly used for the crown of glass melting furnaces due to their high-temperature stability.
Updated On: May 7, 2026
- Fire clay
- Chromite
- Magnesite
- Silica
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The Correct Option is D
Solution and Explanation
Concept:
The crown of a glass melting furnace is exposed to very high temperatures and vapors from the glass batch. It requires refractories with good high-temperature stability.
Step 1: Silica refractories have excellent performance at high temperatures.
Step 2: They have high refractoriness and good resistance to deformation at furnace crown temperatures.
Step 3: In glass melting furnaces, silica bricks are commonly used in the crown area.
Step 4: Therefore, the refractory used for the crown of glass melting furnace is: \[ \boxed{\text{Silica}} \]
Step 1: Silica refractories have excellent performance at high temperatures.
Step 2: They have high refractoriness and good resistance to deformation at furnace crown temperatures.
Step 3: In glass melting furnaces, silica bricks are commonly used in the crown area.
Step 4: Therefore, the refractory used for the crown of glass melting furnace is: \[ \boxed{\text{Silica}} \]
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