1. Main Features: Compared with ordinary fireclay bricks and high alumina bricks, high alumina brick for rotary kiln have special features that are anti-wearing, anti-alkali and high temperature resistance. In order to have these features, special high alumina brick have been developed such as the phosphate combination of high alumina brick, phosphate bonded anti-wearing high alumina brick, anti-spelling high alumina bricks and half -acid anti-alkali high alumina bricks, etc.
2.
Applications: They are mainly used in firing zone, transition zone, decomposition zone and etc.
3.
Physical and Chemical Index
Index |
phosphate-bonded |
phosphate-bonded wear-resistant |
Anti-stripping brick (1) |
chemical bonding brick |
Anti-stripping brick (2) |
Al2O3/% |
≥75 |
≥77 |
>70 |
≥75 |
≥55~60 |
Fe2O3/% |
≤3.0 |
≤3.0 |
≤2.0 |
|
1.1~1.4 |
CaO/% |
≤0.6 |
≤0.6 |
|
|
|
Refractoriness/℃ |
>1770 |
>1770 |
>1780 |
>1770 |
>1770 |
volume density /kg • m-3 |
≥2650 |
≥2700 |
2500~2600 |
≥2600 |
2.2~2.3 |
Apparent porosity /% |
18~20 |
17~19 |
20~25 |
18~20 |
19~26 |
Compress strength /MPa |
≥60 |
≥64 |
≥45 |
≥60 |
30~50 |
refractoriness under load, ℃≥
T0.6 |
≥1350 |
≥1300 |
≥1470 |
≥1450 |
1420~1480 |
Thermal shock resistance (1100℃-Water cold) |
≥30 |
≥30 |
≥30 |
≥20 |
8~20 |
High alumina bricks packing
Bricks are packed on wooden pallet and then polyethylene film is placed over it, finally the package is tied up with steel strips.
High alumina bricks order quantity
We can supply big quantity for cement kiln project but 20 t brick as minimum quantity is also accepted.
High alumina bricks delivery time
The bricks can be delivered 35 days after receiving copy of L/C and capacity of production is 3000 t per month.
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