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Light Weight Mullite Insulation Brick:
The light weight mullite insulation brick is a kind of insulation
material adopting organic matter as ignition loss substance in
order to increase the porosity of refractory, which has such
advantages as high porosity, small volume density, good insulation
effect, high mechanical intensity, small thermal conductivity and
long service life. For various industrial kilns & furnaces, it is a
kind of essential refractory for energy saving and temperature
preservation.
Light Weight mullite Brick Feature:
1. Low bulk density, low thermal conductivity, good thermal
insulation performance.
2. Refractory category allow direct contact of fire, suitable ofr
various atmosphere
3. Good integrity with furnace lining, long service life, easy
operation, could be shaped freely
4. Product specification: standard form, normal standard, shaped
and special shaped bricks.
5. Can be used in various kilns because of its cheapness and
general tray package. Among all of the refractory materials, it is
the most widely used.
Light Weight Mullite Insulation Brick Applications:
1. Furnaces of metallurgy industry, heat treatment furnace
2. Furnaces of chemical industry and construction industry.
3. Furnace of incineration of garbage, recirculating fluidized bed
furnace
Performance and application of Mullite Insulating Firebrick:
The refractoriness is high, can reach to more than 1790 degrees
centigrade. The RUL is 1600~1700 degrees C. The compressive
strength at normal temperature is 70 ~ 260MPa. The thermal shock
resistance is good. There are two kinds of mullite bricks:
sinterted mullite and fused mullite brick.
The Characteristics of Mullite Insulating Firebrick:
The main material of sintered mullite brick is high alumina bauxite
as the main raw material, adding a small amount of clay or raw
bauxite as binder, it is made by molding and sintering. Fused
mullite brick with high bauxite, commercial alumina and refractory
clay as raw material, adding charcoal or coke fines as a reducing
agent, after molding, can adopt the reduction electrofusion method
to manufacture. The crystallization of the electric cast mullite is
larger than that of the sintered mullite, and the thermal shock
resistance is better than that of the sintered product. Their high
temperature performance mainly depends on the content of alumina
oxide and the uniformity of the distribution of mullite and glass.