
Silica Mullite Brick for Cement Kiln
Other name: Silicon Mullite brick
Model Number: HCR-I,HCR-1450,HCR-1550,HCR-1650,HCR-1680,SiC wear-resisting brick
Certification: ISO+9001-14001
Minimum Order Quantity: 5MT
Silica-Mullite-Red Brick
Introduction:
Silica-Mullite-Red brick is designed to be used as a transition zone for lage cement rotary kiln. In order to develop its refractoriness under load, thermal shock resistance and cold crushing strength, white corundum and andalusite are added on the basis of common silica-mullite brick. Its service life time is longer than other products when used for 3000-10000t/d rotary kiln. Spinel brick could be replaced by silica-mullite-red brick in the same invironment.
Advantages:
1. High refractoriness under load and excellent high temperature
resistance;
2. High strength, abrasion resistance, and peel off
and erosion resistance;
3. Low thermal conductivity and good heat insulation
effect;
4. Strong thermal shock resistance;
5. Moderate density, reduce load of the kiln cylinder.
Application:
Transition zone and cooling zone of the rotary kiln.
Silica-Mullite brick
Introduction:
Silica-mullite brick is made by adding grinding aid and zirconium sand on the basis of high quality mullite and silicon carbide.
Advantages:
Excellent erosion and wear resistance, Excellent resistance to
peeling and alkali erosion, Excellent cost performance
Application:
Pre-heating zone and decomposition zone of cement NSP kiln, high
wear parts of the great cooler, other strong wind erosion area
SiC wear-resistant brick
Introduction:
SiC
wear-resistant brick is made of advanced grade high alumina bauxite
clinker and silicon carbide, by high pressure molding and high
temperture sintering.
Advantages:
Excellent resistance to peeling and wear, Excellent cold crushing strength and thermal stability
Application:
Transition zone, cooling zone, outlet and inlet of the cement rotary kiln
Masonry specifications and equipment operation specifications for silica-mullite products
The performance characteristics of the Silica-mullite series products determine its dominant position in the cement rotary kiln lining brick market. Under the premise of normal equipment and operating specifications, the standard masonry method is the main factor to extend the service life of kiln lining.
The Silica-mullite series products are superior to 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 brick Phycial and chemical
| Item | HCR-I | HCR-1450 | HCR-1550 | HCR-1650 | HCR-1680 | SiC wear-resisting brick |
| Al2O3 min% | 68 | 58 | 60 | 65 | 65 | 65 |
| SiC % | 24 | 16 | 18 | 20 | 22 | 30 |
| Bulk Density g/cm³ | 2.7 | 2.45 | 2.5 | 2.6 | 2.65 | 2.65 |
| Cold Crushing Strength Mpa ≥ | 130 | 90 | 90 | 100 | 110 | 110 |
| Refractoriness under load of 0.2Mpa(℃) | 1660 | 1550 | 1580 | 1600 | 1650 | 1650 |
| Refractoriness (℃) min | 1790 | 1790 | 1790 | 1790 | 1790 | 1790 |
| Apparent porosity MAX % | 18 | 20 | 20 | 18 | 18 | 17 |
| Linear change on reburning % | ± 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.1 |
| Thermal shock stability > | 20 | 15 | 15 | 20 | 20 | 20 |