Different parts of a glass kiln require the use of different types of refractory bricks because they face different temperatures and chemical environments. Here are some types of refractory fire bricks commonly used in glass kilns:
Melting section: In the molten section of the glass furnace, where the temperature is very high, high-alumina refractory bricks (usually containing high-alumina alumina) or fused magnesia bricks are usually used. These refractory bricks have excellent high temperature resistance and corrosion resistance and can withstand the high temperature melting of glass.
Sintered zone: In the sintered zone, aluminum silicate refractory bricks are usually used because they can withstand higher temperatures and have better corrosion resistance to alkali metals.
Insulation: Insulation typically uses lightweight refractory bricks or insulating materials to reduce heat loss and increase energy efficiency.
Chimney and exhaust duct: Chimneys and exhaust ducts need to use high-temperature resistant refractory bricks to prevent smoke from eroding the bricks. Aluminosilicate refractory bricks are commonly used in these areas.
Insulation bricks: Insulation bricks or thermal insulation bricks can be used on the outer walls of the kiln to reduce the impact of external temperature on the environment.
It is important to note that the exact type of refractory bricks used may vary depending on the design, process and operating conditions of the glass kiln. Therefore, when selecting refractory fire bricks, it is recommended to consult a professional materials engineer or glass furnace manufacturer to ensure that the appropriate refractory material is selected for the specific application. In addition, the selection of refractory bricks must also consider factors such as cost, durability and environmental protection.
