Rotary Kiln
Capacity: 50-5000 TPD
Feeding Size: 0-50 mm
Discharging Size: 0-50 mm
Handling Materials: Cement raw meal, limestone, iron ore pellets, etc.
Rotary kiln processes materials (0–50 mm) like limestone, ores, and waste at 600–1600°C, producing 50–5,000 t/d of clinker, lime, or metals. Fuel-flexible (gas/coal) with heat recovery, it suits cement/metallurgy but avoids ultrafine feeds.
Advantages
01.
High-Temperature Capability
Operates at 600–1600°C for diverse processes (calcination/reduction), with refractory linings lasting 2–5 years under thermal stress.
02.
Fuel Versatility
Supports gas, coal, oil, or waste-derived fuels, adapting to regional energy costs and carbon neutrality goals.
03.
Large-Scale Output
Produces 50–5,000t/day of clinker, lime, or metals, enabling industrial-scale continuous processing.
04.
Heat Recovery
Preheater systems recycle exhaust heat, cutting energy use by 15–20% versus traditional designs.
How Does A Rotary Kiln Work
1. Material Feeding: Raw materials (0–50mm) enter the kiln's upper end via a chute or screw conveyor, gradually moving downward due to the kiln's 2–5° inclination.
2. Heat Transfer: Fuel combustion at the lower end generates 600–1600°C heat, while counter-current airflow ensures progressive heating through preheating, calcination, and sintering zones.
3. Chemical Reaction: As the kiln rotates (0.5–5 RPM), materials tumble and undergo reactions (e.g., limestone→lime + CO₂), with residence time controlled by speed and inclination.
4. Product Discharge: Processed material (clinker/lime) exits the hot end, while exhaust gases preheat incoming feed or are treated for emissions.
Applications
Models
Model | Diameter (m) | Length (m) | Capacity (TPD) | Power (kW) | Rotation Speed (rpm) | Inlet Temperature (°C) | Application |
RK-2.0x30 | 2.0 | 30 | 500-800 | 55 | 0.5-5 | 800-1200 | Cement production |
RK-2.5x40 | 2.5 | 40 | 800-1200 | 75 | 0.5-5 | 800-1200 | Lime production |
RK-3.0x48 | 3.0 | 48 | 1200-2000 | 110 | 0.5-5 | 800-1200 | Iron ore pelletizing |
RK-3.5x55 | 3.5 | 55 | 2000-3000 | 160 | 0.5-5 | 800-1200 | Chemical processing |
RK-4.0x60 | 4.0 | 60 | 3000-5000 | 220 | 0.5-5 | 800-1200 | Large-scale industrial roasting |
