Spinel brick is mainly used in burning zone, transitional zone and kiln mouth of rotary kiln. In particular,spinel brick has been becoming one of the major lining materials for rotary kiln. Spinel brick is applied in the transitional zone, cooling zone, kiln mouth and even in burning zone of ceramic kiln. Spinel brick is replacing magnesium chrome brick step by step. The thermal shock resistance of alkalescency refractory material is poor. The key point of using alkalescency refractory material is that a coating can be formed on surface of kiln. The shortcoming of poor thermal shock resistance can be made up by keeping the proper thickness of coating on kiln（That is 200 to 300mm ）Its also applied for spinel brick when it is used in burning zone of kiln.
| Index |
Fued synthetic Spinel bricks |
sintering synthetic Spinel bricks |
MgO/%≥ |
>78 |
>80 |
Al2O3/%≤ |
10~13 |
8~12 |
Fe2O3/% |
<1 |
<1 |
SiO2/% |
<1.8 |
<1.5 |
volume density /kg.m-3 |
≥2920 |
2920~2950 |
Apparent porosity %≤ |
≤19 |
17~19 |
Compress strength /MPa≥ |
≥40 |
≥40 |
refractoriness under load , ℃≥ T0.6
T2 |
≥1650
≥1700 |
≥1650
≥1700 |
Linear expansivity /% (1000℃) |
0.96 |
0.99 |
thermal conductivity /W • (m • K ) -1 |
3.00 |
3.00 |
Thermal shock resistance
(1100℃-Water cold) |
≥8 |
≥8 |
Spinel brick packing
Products are packed on wooden pallet and then polyethylene film is placed over it, finally the package is tied up with steel strips.
Spinel brick minimum order
20 t of spinal brick can be accepted is our minimum order but more then 2500 t can be supplied per month
Spinel brick delivery time
The delivery time will be 40 days after receiving L/C at sight. |
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