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Refractory ball for hot blast stove
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Refractory ball usually used in shift converter and reformer in ammonia plant. Refractory ball has a lot of advantages, such as:
High strength, long use period
Chemical stability, it wont react with our materials
Good performance of resistance high temperature, resistance high temperatue up to 1900
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|
Mullite |
Mg-Al |
High alumina low creep |
Mg-Al-Cr |
Mg-Cr |
Silica |
|
|
65 |
75 |
||||||
|
Al2O3%≥ |
75 |
5-10 |
65 |
75 |
5-10 |
|
|
|
Fe2O3%≤ |
|
|
1.5 |
1.5 |
|
|
2.0 |
|
MgO%≥ |
|
91 |
|
|
91 |
80 |
|
|
Cr2O3%≥ |
|
|
|
|
2 |
2 |
|
|
SiO2%≥ |
|
|
|
|
|
|
96 |
|
AP%≤ |
22 |
18 |
22 |
21 |
20 |
20 |
21 |
|
BD g/cm3≥ |
2.4 |
2.85 |
2.6 |
2.65 |
2.8 |
2.6 |
|
|
CCS≥ |
16000 |
18000 |
15000 |
15000 |
15000 |
20000 |
15000 |
|
Refractoriess≥ |
1790 |
1790 |
1790 |
1790 |
1790 |
1790 |
1710 |
|
PLC% |
0.1-0.4 |
|
0.1-0.4 |
0.1-0.4 |
|
|
|
|
RUL ≥ |
1550 |
1550 |
1500 |
1520 |
1520 |
1520 |
1670 |
|
Thermal shock resistance≥ |
40 |
18 |
|
|
150 |
15 |
|
|
Creep rate |
|
|
145050h0.2Mpa<1.0 |
145050h0.2Mpa<1.0 |
|
|
159050h0.2Mpa<0.5 |
