Alkali resident refractory brick is mainly used in cement kilns, made of low alkali alumina refractory clay as the main raw material firing fire clay bricks, with alkali erosion characteristics in cement kiln system. This product adopts the high temperature ceramic crystal science phase structure, sealed the product of open pores channel, so as to achieve the anti chemical erosion and prevent infiltration and deposition of material cracking. This series of products are well used in the cement kiln preheating systems.
Alkali resistant brick can be widely used for cement rotary kiln, flat furnace, oxygen converter, electric furnace, nonferrous metal smelting equipment and glass industry and some high temperature equipment.
|
Item |
Common Type |
High Strength Type |
Arch Type |
|
SiO2%(≤) |
60-70 |
60-70 |
60-65 |
|
Al2O3%(≥) |
25-30 |
25-30 |
30-35 |
|
Apparent Porosity(%) |
21 |
20 |
25 |
|
Cold Compressive Strength,Mpa(≥) |
30 |
60 |
30 |
|
Refractoriness under load,0.2Mpa(≥) |
1350 |
1300 |
1400 |
|
Thermal Shock Resistance (1100ºC, Cycle) |
30 |
20 |
30 |
|
Thermal Conductivity(1000ºC) |
1.30 |
1.40 |
1.30 |
|
Thermal expansion coefficient (900ºC,%) |
0.70 |
0.70 |
0.65 |
|
Alkali Resistance |
Qualified |
Qualified |
Qualified |
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Our company can offer one-stop refractory materials solution for kilns/furnaces, refractory brick, refractory castable, insulation products, ceramic fiber products, kiln refractory construction, etc.
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For all brick products, we have 1 year warranty, any quality problems on our side during this period, we will bear all the cost of shipment and replacement.
