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The function of refractory bricks in glass furnaces
Time：
May 21,2026
Kiln‑bank bricks are refractory wall‑type bricks used at the bottom of glass furnace tanks, with key functions including flow diversion, clarification, flow stabilization, energy conservation, and furnace protection. The typical material selection for kiln‑bank bricks is AZS41#WS‑Y.
I. Core Role
• Shallow clarification (bubble removal): Forces the glass melt to flow in a thin layer over the kiln throat, resulting in a higher surface temperature and faster degassing, thereby improving clarification quality.
• Prevents contamination and stabilizes flow: Blocks unmelted material, scum, and impurities at the bottom of the tank, allowing only the clean liquid from the upper layer to pass over the weir; suppresses backflow, maintains stable circulation, and minimizes temperature fluctuations.
• Extend residence time: Increase the path length and dwell time of the glass melt in the melting/fining zone to promote thorough melting and homogenization.
• Energy conservation and consumption reduction: Minimize convective heat loss, stabilize hot spots, and lower fuel consumption.
• Furnace protection: Reduces direct scouring and erosion of the glass melt on the furnace hearth and throat, thereby extending the furnace’s service life.
II. Material and Location
• Material: Commonly used electric-fused zirconia‑alumina bricks (AZS‑41#), offering high-temperature resistance, excellent corrosion resistance, and low pollution.
• Location: Mostly in the melting section → at the neck, or from the neck to the cooling section, or at hot spots in the melting section.
In a nutshell: The baffle plate ensures clean liquid, stable flow, efficient gas venting, and reduced energy consumption.
Henan Yuhua Electrofused Technology Co., Ltd. is the original manufacturer of electrofused AZS zirconia‑alumina products!
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