
Silica mullite brick
Other name: Silica mullite brick
Model Number: HCR-1450,HCR-1550,HCR-1650,HCR-1680
Certification: ISO9001-14001
Minimum Order Quantity: 5 MT
Silica-Mullite Bricks
Introduction:
Silica-Mullite bricks are made of high-quality mullite and silicon carbide, and an appropriate amount of grinding aid and zircon sand are added as auxiliary materials.
Advantages:
Excellent erosion and wear resistance, Excellent resistance to peeling and alkali erosion, Excellent cost performance.
Application:
Serious abrasion parts such as the decomposition zone of cement NSP kiln, preheating zone, grate cooler, and other strong wind erosion parts.
Masonry specifications and equipment operation specifications for silica-mullite products
The performance of the Silica-Mullite series products determine its position in the cement rotary kiln lining brick market. Under the premise of normal equipment and operating, the standard masonry method is the main factor to extend the service life of kiln lining.
The
Silica-Mullite series products are better than other products in terms
of strength and thermal shock resistance. But, the enormous stress
generated by the cement rotary kiln during start-stop can easily cut the
product or cause the product to burst. Therefore, the start and stop
operation of the kiln must be slow. Especially in the event of a sudden
power outage or unexpected failure requiring immediate shutdown of the
kiln, the standard masonry method is an important guarantee for
extending the service life of the kiln lining.
Silica-Mullite Bricks phycial and chemical
| Item | HCR-1450 | HCR-1550 | HCR-1650 | HCR-1680 |
| Al2O3 min% | 58 | 60 | 65 | 65 |
| SiC % | 16 | 18 | 20 | 22 |
| Bulk Density g/cm³ | 2.45 | 2.5 | 2.6 | 2.65 |
| Cold Crushing Strength Mpa ≥ | 90 | 90 | 100 | 110 |
| Refractoriness under load of 0.2Mpa(℃) | 1550 | 1580 | 1600 | 1650 |
| Refractoriness (℃) min | 1790 | 1790 | 1790 | 1790 |
| Apparent porosity MAX % | 20 | 20 | 18 | 18 |
| Linear change on reburning % | 0.2 | 0.2 | 0.2 | 0.2 |
| Thermal shock stability > | 15 | 15 | 20 | 20 |