Excellent High Temperature Stability Chrome Corundum Compounding Brick for Cement Kiln
Product Introduction:
Chrome corundum compounding brick has been widely used as a lining material in petrochemical thermal equipments with high temperature, high pressure, chemical erosion and serious mechanical wear. With the advancement of production technology in the petrochemical industry, many new processes and technologies have been used in production to make equipment.
Technical Index:
|
Item
|
Chrome Corundum Compounding Brick |
| Heavy |
Light weight |
|
Chemical Composition %
|
Al2O3 |
≥80 |
≥40 |
| SiO2 |
/ |
50～55 |
| Cr2O3 |
≥4 |
/ |
| ZrO2 |
≥3 |
/ |
| Fe2O3 |
≤0.8 |
/ |
| Apparent porosity% |
≤17 |
/ |
| Crushing strength MPa |
≥110 |
≥30 |
| RUL ℃ |
≥1650 |
≥1300 |
| Thermal shock resistance 1100℃ cooling water |
≥25 |
/ |
| Bulk density g/cm³ |
≥2.9 |
≤2.1 |
|
Thermal conductivity w/m.k
(600℃±25℃)
|
2.5 |
1.0 |
| Refractoriness (℃) |
≥1790 |
≥1730 |
| Linear change on reheating(1350x3h,%) |
±0.1 |
±0.1 |
High Temperature Fire Brick 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.
