Wholesale Diatomite Insulation Brick

Diatomaceous earth insulation brick is often used as insulation material for high temperature furnaces and other heating equipment.. Diatomite brick contains small amounts of binder and combustible materials, added to diatomaceous earth. Diatomaceous earth brick production requires moisture, mixing raw materials, moldings, firing and other stages.

Physico-chemical characteristics of diatomite insulating brick

Products Properties	FR-0.5	FR-0.6	FR-0.7	FR-0.8	FR-1.0
Bulk density g/cm3	≤ 0.5	≤ 0.6	≤ 0.7	≤ 0.8	≤ 1.0
Cold crushing strength kg/cm2	≥ 8	≥ 12	≥ 20	≥ 35	≥ 50
Reheat shrinkage % at 900° C×8hrs	0.5	0.5	0.5	0.5	0.5
Thermal conductivity W/(M. K)at 300° C mean	0.11	0.15	0.18	0.20	0.23
Max service temp ° C	900	900	900	900	900
Chemical composition %
SiO2	71.5	71.0	70.5	70.0	70.0
Al2O3	16.5	17.0	17.5	18.0	18.0
Fe2O3	4.0	4.2	4.5	5.0	5.0

Main chemical composition of diatomaceous earth insulating refractory brick

The main chemical composition of diatomite insulation brick is SiO2, followed by Al2O3, as well as impurities, such as iron oxides, potassium, sodium, calcium and magnesium.

Advantages of diatomaceous earth brick

1. The coefficient of thermal expansion of fire-resistant material is low, and it is not easy to deform.
2. It has low weight and high compressive strength.
3. Good effect of preserving heat and reducing energy consumption.
4. Low bulk density and low thermal conductivity.
5. Comfortable construction, and the surface is smooth.

Applications of Diatomite Insulation Bricks

Diatomaceous earth insulating bricks are often used in the electrical power industry, metallurgy, chemical and cement industry, especially in pipes and fireplaces of heating equipment.

Diatomite insulation brick supplier certificate

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