Commonly Used Refractory Materials for Float Glass Melting Furnaces

Glass melting furnace is a thermal equipment composed of refractory materials. The efficiency and service life of a glass-melting furnace largely depend on the variety and quality of refractory materials. The development of glass manufacturing technology depends largely on the improvement of refractory material manufacturing technology. Therefore, the reasonable selection and use of refractory materials in the design of glass melting furnaces is crucial. To achieve this, we must master the following two points: the characteristics and applicable parts of the selected refractory materials and the use conditions and corrosion mechanism of each part of the glass melting furnace.

The quality of furnace refractory bricks is of great significance to improving the output and quality of glass products, saving fuel, extending the service life of the furnace, and reducing glass production costs. Bad refractory bricks not only limit the operating temperature of the furnace, but also seriously damage the quality of the glass, causing defects such as stones, streaks, bubbles, and lack of coloration, which greatly affects the productivity of the furnace.

Commonly used refractory materials for float glass melting furnaces include shaped and unshaped refractory products:

1. Silica brick;

2. Clay bricks;

3. High alumina bricks and silica;

4. Fused zirconium corundum brick;

5. Fused corundum brick;

6. Zircon bricks;

7. High-purity magnesia bricks;

8. Directly combine magnesia bricks;

9. Lightweight refractory materials;

10. Unshaped refractory materials.

According to the different operating parts and industrial characteristics of the furnace, a variety of refractory bricks can be reasonably selected to allow each part of the furnace to function fully, thereby increasing output, improving glass quality, and balancing the service life of each part of the furnace, thereby extending the furnace service life, reduce fuel consumption and reduce product costs. If you master the properties and characteristics of various refractory bricks, understand the working conditions of various parts of the furnace, and study the corrosion mechanism of refractory bricks, you can correctly and reasonably select refractory bricks.