Which firebrick is used in kiln?

There are various types of fire bricks that can be used in kilns depending on the specific application and operating conditions. Some commonly used fire bricks for kilns include Standard fire bricks High-alumina fire bricks High-alumina fire bricks  Magnesia fire bricks Magnesia fire bricks。

1.Standard fire bricks: These are the most common type of fire bricks used in kilns. They are made from clay or silica and have a maximum temperature resistance of around 1200-1400℃. Standard fire bricks are suitable for use in low-temperature kilns, such as pottery kilns.

2.High alumina brick: These fire bricks are made primarily from alumina (Al2O3) and other additives, which give them a higher refractoriness compared to standard fire bricks. High-alumina fire bricks can withstand temperatures up to 1700℃ and are suitable for use in high-temperature kilns, such as ceramic kilns and glass melting kilns.

3.Silica fire bricks: These fire bricks are made from pure silica and have a high thermal shock resistance. They are suitable for use in kilns that require frequent temperature changes, such as annealing kilns and furnace linings.

4.Magnesia fire bricks: These fire bricks are made from magnesia (MgO) and have a high refractoriness and good thermal shock resistance. They are suitable for use in kilns that produce highly basic slag, such as steelmaking furnaces.

5.Zirconia fire bricks: These fire bricks are made from zirconia (ZrO2) and have a very high refractoriness and excellent corrosion resistance. They are suitable for use in kilns that require resistance to harsh chemical environments, such as waste incineration kilns.

In summary, the type of fire brick used in a kiln depends on the specific application, operating conditions, and required temperature range. It is important to select the appropriate type and quality of fire brick to ensure optimal performance and longevity of the kiln.