Kilns vary in size, quality, and production efficiency depending on the type of glass being produced. By comparing and analyzing the properties of refractory materials, the effectiveness of their application in kilns can be assessed. Currently, refractory materials that are resistant to high-temperature glass liquid erosion can effectively improve the weaker areas of melting furnaces. The following analysis examines several typical refractory materials based on this characteristic.
1. Fused Cast Materials
Fused cast materials are distributed in specific ratios and melted at high temperatures to achieve adequate casting and ensure the effectiveness of refractory applications. These cast materials mainly consist of alumina, zirconia, and casting materials. Zirconia, in particular, is utilized for the production of specific types of glass in electric melting furnaces. Currently, this type of cast refractory material is predominantly used internationally and has significant influence. Refractory materials for glass kilns are mainly composed of zirconia-corundum and alumina, with adjustments in glass liquid in various kiln zones determining the primary range of oxide products.
2. Silica Brick Material
Silica brick is the primary refractory material used in glass kilns, mainly for the exterior flame zones of the melting furnace. Maintaining the proper functioning of silica bricks is essential for ensuring their performance. However, silica bricks experience uneven heating, and non-refractory sections may lead to reduced service life. Selecting high-quality silica bricks with enhanced heat resistance is a critical area of study for the glass kiln industry.
Firebird’s glass furnace silica bricks are acidic refractory materials primarily composed of tridymite, cristobalite, and a small amount of residual quartz and glass phases. With over 96% silica content, these bricks offer excellent resistance to acid slag erosion. Glass furnace silica bricks also feature exceptionally high refractoriness under load, allowing them to maintain stability and resist deformation even at elevated temperatures. This durability contributes significantly to extending the overall service life of refractory materials in glass furnaces.
3. Magnesium-Based Refractory Materials
Magnesium-based materials used in glass kilns mainly include fused magnesia bricks and alloy magnesia bricks. By utilizing heat storage and increasing usage standards, the service life of glass kilns can be extended. However, prolonged high-temperature exposure can lead to material consumption, representing a primary limitation of magnesium oxide materials in glass kiln applications.
In addition to these refractory materials, Firebird’s Glass Furnace Bottom Blocks offer an innovative solution tailored specifically for glass furnace applications. We provide dense insulation blocks designed to enhance performance, durability, and cost-efficiency. Fireclay & Sillimanite Bottom Blocks, crafted through advanced vibrating casting technology and high-temperature sintering, ensure long-lasting durability. Firebird’s insulation blocks also present furnace designers with valuable options to reduce fuel and labor costs by minimizing mortar joints.
For customers looking to maximize furnace efficiency and longevity, Firebird’s bottom and sidewall blocks present a reliable, high-performance solution for glass furnaces. Please contact us to learn more about how these blocks can optimize your operations.
