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Glass Furnace
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65% Zircon Brick for Industrial
Core Advantages
Exceptional High-Temperature Resistance
With refractoriness under load up to 1650℃ and pyrometric cone equivalent of SK 31, our zircon mullite brick maintains structural integrity and stable performance in extreme high-temperature industrial environments, avoiding deformation or damage during long-term continuous operation. This high-temperature stability makes the zircon mullite refractory brick an ideal choice for high-heat industrial furnaces.
Superior Corrosion & Wear Resistance
The dense crystal structure of zircon brick effectively resists erosion from molten glass, steel slag, metal oxides and acid-alkali media. Its high hardness also reduces wear caused by material scouring during long-term use.
Stable Volume & High Mechanical Strength
With low re-fire shrinkage and cold crushing strength ≥100MPa, our zircon brick maintains stable volume at high temperatures and withstands mechanical impact, suitable for heavy-duty industrial applications.
Product Parameters
| Item | Dense Zircon Brick | Zircon Brick |
| ZrO₂ % | ≥65 | ≥65 |
| SiO₂ % | ≤34 | ≤34 |
| Fe₂O₃ % | ≤0.4 | ≤0.5 |
| g/cm³ Bulk Density |
≥3.80 | ≥3.75 |
| % Apparent Porosity |
≤17 | ≤18 |
| MPa Cold Crushing Strength |
≥100 | ≥100 |
| ℃（0.2MPa,T0.6） Refractoriness Under Load |
≥1700 | ≥1700 |
Detailed Application Scenarios
1. Glass Industry (Core Application)
◎ As an indispensable refractory material for glass melting furnaces, zircon brick is perfectly adapted to glass production due to its outstanding resistance to glass liquid erosion and thermal shock stability. Our zircon refractory brick is widely used in key parts of various glass furnaces, including lining of alkali-free, low-alkali, sodium-calcium and borosilicate glass melting furnaces, as well as furnace crown, port arch, melting pool bottom, feeder brick and other critical components that directly contact molten glass.
It can effectively reduce bubble precipitation in glass melts, ensure the purity and quality of glass products, and extend the service life of glass furnaces, thereby reducing production downtime and costs.
2. Metallurgical Industry
◎ In metallurgical production, zircon brick is specially designed for high-temperature and corrosion-prone working environments, relying on its excellent chemical stability and refractory performance. It is mainly used in lining of stainless steel ladles and continuous casting ladles, high-temperature induction furnace lining, sprue brick, plug brick, and furnace bottom/back lining that contacts metal oxides and slags.
3. Ceramic & Other High-Temperature Industries
◎ In the ceramic industry, zircon brick is applied to lining of ceramic sintering kilns and ball mills, leveraging its high wear resistance and high-temperature stability to improve the sintering quality of ceramic products. In the chemical industry, it is used for lining equipment handling high-temperature and corrosive media due to its acid-alkali resistance. Additionally, it is suitable for other high-temperature industrial furnaces with frequent thermal shock and heavy erosion, providing reliable refractory protection.
Conclusion
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