Rotary Kiln Full-Zone Refractory Brick Configuration List | 2000t/d - 10000t/d Dry Process Cement Production Line
Jul 14,2026
This matching scheme is formulated based on 41 years of refractory manufacturing experience, suitable for mainstream NSP cement kilns, compatible with Central Asian cement plants burning high-alkali raw materials and alternative fuels. Divided into preheating zone, transition zone, burning zone, cooling zone; distinguished by small/medium/large kiln scale.
1. Zone Division & Core Working Conditions
① Kiln Inlet / Preheating ZoneWorking temperature: 900～1250℃Main hazards: Alkali salt penetration, thermal shock, abrasion
② Transition ZoneWorking temperature: 1250～1400℃Main hazards: Alternate kiln coating spalling, thermal cycling stress
③ Burning Zone (Sintering Zone)Working temperature: 1400～1650℃Main hazards: Clinker erosion, molten salt corrosion, kiln coating instability
④ Rear Cooling Zone (Before Cooler)Working temperature: 1100～1300℃Main hazards: Rapid temperature drop, strong thermal shock
2. Complete Refractory Matching Standard by Production Capacity
① Small Kiln: 2000～3000 t/d
Kiln inlet section (0–15m): Alkali resistant high alumina brick
Preheating zone (15–35m): 70% high alumina brick
Transition zone (35–50m): Silicon-mullite brick
Burning zone (50–75m): Magnesia-iron spinel brick
Rear cooling zone (75m to kiln outlet): Silicon-mullite brick
② Medium Kiln: 4000～6000 t/d
Kiln inlet (0–18m): Alkali resistant brick
Preheating section (18–42m): 75% high alumina brick
Transition zone (42–65m): Silicon-mullite wear-resistant brick
Burning zone (65–95m): Medium iron magnesia iron spinel brick
Cooling front section (95m–outlet): Silicon-mullite brick
③ Large Kiln: 8000～10000 t/d
Kiln inlet (0–22m): Low porosity alkali resistant brick
Preheating zone (22–50m): 80% high alumina brick
Transition zone (50–78m): High strength silicon-mullite brick
Burning zone (78–115m): High-performance magnesia iron spinel brick (high coating forming ability)
Cooling transition segment (115m–kiln outlet): Silicon-mullite composite brick
3. Auxiliary Equipment Supporting Refractory (Full Line Matching)
Preheater cyclone barrel / riser duct: Alkali resistant castable + high alumina brick
Calciner: Low cement high alumina castable
Tertiary air duct: Silicon-mullite castable
Kiln hood / burner pipe: Corundum castable, anti-spalling plastic ramming mix
Grate cooler: High alumina brick + wear-resistant castable
4. Service Life Reference Benchmark
Burning zone magnesia iron spinel brick: 12～18 months
Transition zone silicon-mullite brick: 18～24 months
Preheating zone high alumina / alkali resistant brick: 3～4 years
Kiln hood & duct castables: 6～12 months
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Songlou Industrial Zone, Xinmi City, Henan, China
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