Fireclay brick

Fireclay brick
Fireclay mortar
Sk34 fireclay brick
Checker fireclay brick
Antialkali fireclay brick
Fireclay brick for coke oven
Fireclay brick for blast furnace
Fireclay brick for glass furnace
Phosphoricacid immersed   Fireclay brick
Fireclay brick for tunnel kiln
   Anti-alkali fireclay brick for rotary kiln
1. Characters for anti-alkali fireclay bricks for cement rotary kiln:
The raw materials of the anti-alkali bricks is clay with low content of alumina.  This kind of fireclay bricks has good corrosion resistance to alkali.
2. Applications:
Used in work layers of preheating in cement rotary kiln and middle temperature zone of cooler.
3. Physical and Chemical Index:

Mark

Normal Type

Chemical composition (%)

Al2O3

25~30

Fe2O3

≤2

SiO2

65~70

Refractoriness(℃)

≥1650

Density(g/cm3)

2.1

Apparent porosity (%)

≤25

Compressive strength (MPa)

≥25

Refractoriness under load T0.6(℃)﹚

≥1350

Thermal expansion rate(900℃) [%]

0.7

Thermal conductivity/ (350℃) [W/(m·K) ]

1.28

Thermal shock resistance(1100℃→water cold)[times]

≥10

 


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