It is widely used in the lining of the kiln working face which is in direct contact with the flame, and has become one of the research hotspots in recent years.
Mullite insulating brick for hot blast stove
Shaped lightweight heat-insulating refractory bricks are shaped block-shaped heat-insulating refractory products with a porous structure inside and thermal insulation properties. Among them, brick-shaped products are the most widely produced and used, so they are also called lightweight heat-insulating refractory bricks. Shaped mullite products mainly refer to mullite light insulation bricks, which are a new type of insulation material with Al2O3 content of 50%~80% and mullite (3Al2O3.2SiO2) as the main crystal phase and combined phase.
Project |
Al2O3%≥ |
Fe2O3(%) ≤ |
Bulk density g/cm3≤ |
Cold crushing strength MPa CCS |
Permanent linear change℃×h≤2% |
Thermal Conductivity w/m.k |
0.2MPasoftening temperature under load0℃ |
||
400℃ |
600℃ |
1000℃ |
|||||||
DLM-0.3 |
75 |
0.3 |
0.3 |
3.5 |
1350×12 |
0.18 |
0.22 |
0.26 |
1350 |
DLM-0.5 |
75 |
0.5 |
0.5 |
5.0 |
1380×12 |
0.22 |
0.26 |
0.30 |
1380 |
DLM-0.6 |
75 |
0.6 |
0.6 |
5.8 |
1420×12 |
0.26 |
0.30 |
0.32 |
1420 |
DLM-0.8 |
75 |
0.8 |
0.8 |
7.5 |
1450×12 |
0.28 |
0.32 |
0.36 |
1450 |
DLM-1.0 |
75 |
1.0 |
1.0 |
8.5 |
1480×12 |
0.30 |
0.35 |
0.40 |
1480 |
Because mullite light insulation brick has the following advantages:
High temperature strength
Good high temperature stability
Small coefficient of thermal expansion
Good thermal shock resistance and other advantages
It is widely used in the lining of the kiln working face which is in direct contact with the flame, and has become one of the research hotspots in recent years.
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