Refractory Material Families and Product Applications
Four refractory solutions are organized in two functional groups: anchor and support bricks for mechanically demanding lining zones, and special-shaped products for burner ports and severe high-temperature areas.
Andalusite-Based Anchor and Support Solutions
This category includes andalusite and andalusite-corundum products for zones where mechanical interlocking, dimensional stability and reliable behavior under repeated temperature changes are important.
High Alumina Andalusite Brick
An andalusite-based high-alumina refractory for furnace zones requiring stable high-temperature performance and dependable resistance to repeated heating and cooling.
Andalusite-Corundum Anchor Brick
A combined andalusite-corundum quality for anchor and support shapes where greater thermo-mechanical resistance and stronger lining support are required.
Alumina-Based Burner-Port and Severe-Service Solutions
This category includes alumina-mullite and alumina-chromite special shapes for burner openings and sensitive zones exposed to concentrated heat, thermal cycling, abrasion and chemical attack.
High Alumina Alumina-Mullite Brick
A high-alumina refractory containing mullite-rich phases for severe thermal service and special-shaped lining around burner openings.
Alumina-Chromite Burner-Port Brick
An alumina-based refractory containing chromite or chromium-bearing phases for demanding zones where chemical, abrasive and thermal wear must be considered together.
Three Main Product Qualities and Their Applications
The following three qualities summarize the application-specific products identified for shaft kilns, rotary pelletizing kilns and burner-port lining.
| Product Quality | Material Classification | Main Application |
|---|---|---|
| High Alumina (Andalusite) Brick | Andalusite-based high-alumina refractory | Bustle, bustle inlet and upper sidewall areas of direct-reduction iron shaft kilns. |
| Fired Phosphate-Bonded High Alumina (Andalusite) Brick | Andalusite-based refractory with a fired phosphate-bonded system | Refractory lining in the rotary kiln of an iron-ore pelletizing system. |
| High Alumina (Alumina-Mullite) Brick | Alumina-mullite high-alumina refractory | Refractory lining in the burner port of a pelletizing furnace. |
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