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Erosion-resistant, Micro-expanding Refractory Bricks for Calcination Furnace Vessels

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Refractory materials for calcination furnaces

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Product Description

　　The tank-type calcination furnace uses anti-erosion, micro-expansion refractory bricks specifically designed for furnace linings. This product is a new development commissioned by China Aluminum Zhengzhou Research Institute of Nonferrous Metals Co., Ltd., and it stands out primarily due to its exceptional strength, outstanding wear resistance, and highly dense structure. The advanced manufacturing process employed creates a continuous, silica-rich (SiO₂) protective glaze layer on the brick surface, effectively shielding against erosion caused by harmful sulfur elements present in carbon-based materials. Additionally, this innovative refractory boasts superior high-temperature flexural strength and remarkable thermal shock resistance, ensuring the product remains durable and resistant to spalling or cracking under extreme conditions. Notably, its thermal conductivity surpasses that of conventional silicon bricks, enabling faster heat transfer within the furnace and enhancing the overall thermal efficiency of the system. As a result, the product helps maintain a more stable temperature gradient inside the furnace, keeping combustion conditions optimal for efficient and thorough calcination of petroleum coke—leading to reduced fuel consumption while maximizing the quality of the final product.

　　Another key feature of this product is its low thermal expansion coefficient, which causes minimal expansion during operation. This helps enhance the structural stability of the calcination furnace’s cylindrical shell, allowing bricks to fit together tightly and maintain excellent dimensional stability—ultimately extending the service life of the furnace.