What are the uses of aluminum bricks in glass kilns?

Aluminum bricks are aluminosilicate refractory materials with an alumina content exceeding 48%. Due to their high refractoriness, excellent thermal shock stability, resistance to airflow erosion, and medium-temperature corrosion resistance, they have become a key supporting refractory material for glass kilns. They are mainly used in medium- and high-temperature operating areas of the kiln where the glass melt is not in direct contact, ensuring the stable and long-term operation of the kiln.

The regenerator is the core application area for aluminum bricks. This area experiences large temperature fluctuations and frequent erosion by high-temperature airflow carrying dust. Aluminum bricks can be used to construct the walls, arches, and checkerboard structures of the regenerator, efficiently withstanding thermal cycling shocks and stably completing the heat exchange between flue gas waste heat recovery and preheating of combustion air. Simultaneously, they resist dust abrasion, reduce structural damage, improve the kiln’s thermal energy utilization rate, and reduce production energy consumption.

Aluminum bricks are also widely used in the forming sections of glass kilns, such as the working pool, material channel, and feeder. Alumina bricks can be used for lining equipment and to manufacture refractory components such as agitators, mixing cylinders, and punches. They withstand the slight chemical corrosion of glass fumes, maintain the structural integrity of the equipment, ensure the homogeneity and stable delivery of molten glass, and prevent component damage from affecting glass forming quality.

Furthermore, aluminum bricks can be used in medium-low and high-temperature areas such as the cooling tank walls and upper structure of kilns, suitable for operating temperatures of 1500-1650℃. With their excellent high-temperature structural strength, aluminum bricks stabilize the overall kiln structure. Aluminum bricks offer outstanding cost-effectiveness, effectively extending the service life of glass kilns, reducing maintenance frequency and operating costs, making them an important refractory material for energy conservation, stable production, cost reduction, and efficiency improvement in glass kilns.