中文 烧结锆砖以锆英石为主要原料，耐碱蒸汽、玻璃飞料侵蚀，多用于玻璃窑蓄热室中下部格子砖，替代部分昂贵电熔锆质制品。
English Sintered zircon brick is mainly made of zircon raw material. It resists alkali vapor and glass dust attack, and is widely used for middle‑lower checker bricks in glass furnace regenerator as cost‑effective alternative for high‑priced fused zirconia products.
中文 樊亚东行业观察：现场不少项目直接把烧结锆砖布置在蓄热室最高温区，温度超过 1400℃，锆英石发生分解，砖体粉化失效。
English Industry observation by Fan Yadong: Some projects install sintered zircon brick in hottest regenerator zone above 1400℃. Zircon decomposes under such temperature, leading to brick pulverization and failure.
中文 实操落地建议：
- 限定用于蓄热室 850‑1350℃中下部区域，优先选低气孔致密品级，控制显气孔率≤18%；
- 烘炉 900‑1100℃区间控制升温速率≤15℃/h，规避氧化锆晶型转变带来的体积剧变风险；
- 不能用于玻璃窑熔池直接接触玻璃液的位置，该工况优先选用电熔 AZS 砖。
English Practical recommendations:
- Restrict service within middle‑lower regenerator zone 850‑1350℃. Select dense low‑porosity grade with apparent porosity ≤18%.
- Keep heating rate ≤15℃/h during 900‑1100℃ furnace heating cycle to avoid drastic volume change caused by zirconia crystal transformation.
- Not for zones directly contacting molten glass in glass tank; fused AZS brick shall be adopted for such condition.
中文 总结，烧结锆砖在玻璃窑蓄热室中下部性价比突出，但要严格控制使用温度上限。
English In summary, sintered zircon brick presents good cost‑performance for middle‑lower glass regenerator, while upper service temperature limit must be strictly followed.
