Lightweight Mullite Insulation Bricks

Lightweight mullite insulation bricks are a type of insulation bricks. They are insulating refractory bricks made of mullite as aggregate. Mullite insulation bricks are white and can be directly exposed to flames. They have high refractoriness and are mainly used. Used in hot blast stove tops, blast furnace shafts, and bottoms, glass melting furnace regenerators, ceramic sintering kilns, dead-end furnace linings of petroleum cracking systems, etc.

Dimensions of lightweight mullite insulation bricks

The dimensions of conventional lightweight mullite insulation bricks are 230 x 114 x 65mm.

Lightweight mullite insulation brick model

Our common models of lightweight mullite insulation bricks include JM23, JM26, JM28, and JM30. The main difference between them is the content of aluminum oxide and iron oxide. Different contents can withstand fire-resistant temperatures and thermal conductivity. The coefficients and thermal expansion rates are different.

Characteristics of lightweight mullite insulation bricks

1. Low thermal conductivity and good thermal insulation effect;

2. Low thermal melt. Due to low thermal conductivity, the mullite series lightweight insulation bricks accumulate very little heat energy, and the energy-saving effect is obvious in intermittent operation;

3. Low impurity content, very low content of alkali metal and other oxides in the iron box, therefore, high refractoriness; high aluminum content allows it to maintain good performance under reducing atmosphere;

4. High hot compressive strength;

5. The appearance dimensions are precise, speeding up the masonry work, reducing the use of refractory mud, and ensuring the strength and stability of the masonry, thereby extending the life of the lining;

6. It can be processed into special shapes to reduce the number of bricks and joints.

The above is an introduction to the sizes, models, and characteristics of lightweight mullite insulation bricks. I hope it can be helpful to everyone.