Magnesia-Alumina Spinel Brick
Chrome-free magnesia-spinel brick for cement kiln burning zones, environmental and erosion resistant.
Learn More →Rotary Kiln Burning Zone Refractory Package
Fast brick wear and unstable coating were solved by zone-matched magnesia-alumina spinel brick and spalling-resistant high-alumina brick, lengthening coating stability and boosting burning-zone life by about 30%.
Customer：Cement group in Shanxi (4500 t/d clinker line)Location：Yangquan, Shanxi
1Challenge
The burning zone operated above 1400°C with alkali-salt attack; brick wore fast and coating would not hold, requiring brick replacement about every 8 months with heavy kiln downtime.
2Solution
Zones were matched to temperature and atmosphere: magnesia-alumina spinel brick for the burning and transition zones for erosion resistance and coating, spalling-resistant high-alumina brick for the front transition zone for thermal-shock stability, with a bricklaying plan and on-site guidance.
3Result
Coating stability improved markedly; burning-zone life rose from about 8 months to 10–11 months (about +30%), with fewer annual stoppages and lower overall operating cost.
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Spalling-Resistant High-Alumina Brick
ZrO₂-containing spalling-resistant high-alumina brick for cement kilns.
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High-Alumina Brick LZ-65
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