Good Anti-stripping Ressitance Magnesia-alumina Spinel Brick for Cement Kiln
Introduction:
Magnesia-alumina spinel brick is made with pure raw material, less impurity content, pressed and sintered in high pressure temperature.
Feature:
Good performance of corrosion resistance
Good exfoliation resistance
High refractoriness
Application:
Magnesia-alumina spinel brick is widely used in large dry process cement rotary kiln.
Technical Index:
| Item | Magnesia-alumina Spinel brick |
| MgO, % | ≥82 |
| A12O3, % | 13-15 |
| Fe2O3, % | ≤0.8 |
| Volume Density, g/cm3 | ≥2.98 |
| Apparent Porosity, % | ≤17 |
| Cold Crushing Strength, MPa | ≥60 |
| Refractoriness Under Load,℃,[0.2MPa×0.6%] | ≥1700 |
| Thermal Shock Resistance,Cycles [1100℃,Water-cooling] | ≥15 |
| Refractoriness, ℃ | ≥1800 |
Manufacturing Process Flow:
First, qualified raw materials enter to our raw materials warehouse
Second, all materials including fine powders, aggregates, binding agent are batched according to the technical agreement.
Third, finished raw materials is shaped by 630 tons pressure machine or 2500 tons automatic hydraulic pressure machine.
Forth, green bricks is dried in the dry kilns between 40℃ and 120 ℃, and then sintering in high temperature according to the firing curve.
Last, check the quality of finished refractory bricks and qualified products are packed as request.
