1. High alkali-resistance
2. Well thermal stability
3. Good heat conductivity
4. High softening temperature
Features:
Magnesia zirconium brick chooses high quality magnesia sand and zircon as raw material and is made by middle,high temperature firing. Compared with other magnesia bricks, it has the following advantages:
1.Well thermal stability
2.Good heat conductivity.
3.High softening temperature
4.Superior alkali-resistance and repeated evaporation-condensation resistance.
Application:
Widely used as the regenerator middle and upper refractory material for heat exchange.
Magnesia zirconium brick physiochemical index:
Item | Properties | |
Magnesia zirconium brick | ||
MZZ-1 | MZZ-2 | |
MgO | 73 | 77 |
CaO | — | — |
Al2O3 | — | — |
SiO2 | — | — |
ZrO2 | 12 | 12 |
Apparent porosity % | 18 | 16 |
Cold Crushing strength MPa, | 65 | 70 |
0.2 MPa°C,Softening temperature under load,°C, | 1600 | 1660 |
Permanent linear change,%,1650°CX 2 H | — | — |
Bulk density,g/cm3 | 3.0 | 3.1 |
Application | sodium silicate furnace,ceramic frit furnace ,glass furnace, Coking furnace, metallurgical furnace and other furnaces |