Mullite Insulation Bricks For Sale

Mullite insulation brick mullite as the main crystalline phase of the refractory high aluminum we call mullite light insulation brick. Generally, the content of alumina is between 40% and 70%. In addition to mullite, the mineral composition of the lower alumina also contains a small amount of glass phase and stone quartz.

Mullite lightweight insulation brick has the advantage of flame contact and is used directly for lining of high temperature kilns. Mullite lightweight thermal insulation brick is a kind of refractory thermal insulation material widely used in new industrial kilns and high temperature equipment. This series of insulating bricks are mainly used in the top of hot blast furnace, the body and bottom of blast furnace, the heat storage room of glass melting furnace, ceramic sintering kiln, and the dead corner lining of petroleum cracking system.

Mullite insulation brick product characteristics:

1. Low thermal conductivity, good thermal insulation effect;

2. Low heat melting, because of low thermal conductivity, mullite series lightweight heat insulation bricks store very little heat energy, and the energy saving effect is obvious in intermittent operation;

3. Low impurity content and very low iron box alkali metal oxide content, therefore, high fire resistance;The higher aluminum content makes it maintain good performance in reducing atmosphere;

4. High thermal compressive strength, high fire resistance, up to 1790℃.The starting temperature of softening under load is 1450-1600℃.Normal temperature compressive strength 2-6mpa.Good thermal shock resistance;

5. Accurate appearance size, speeding up the masonry speed, reducing the use of refractory clay, ensuring the strength and stability of the masonry, thus extending the lining life;

6. Can be processed into special shapes to reduce the number of bricks and masonry joints.

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