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Rotary Lime Kiln

Application Thermal Power Plant, Quick lime Plant
Capacity 150-1000 t/d
Motor Power  
Weight 252-841 tons


Rotary lime kiln is the main equipment of lime production line. It is widely used for many industries like metallurgy, chemical industry, building refractory materials, environmental protection, etc. The rotary kiln consists of cylindrical shell, supporting roller, supporting device of thrust roller, driving unit, moveable kiln head, sealing device on the tail of kiln, coal dust pipe device, etc., the kiln body has a certain tilt angle with level. The whole kiln body is supported by the roller supporting device, and it is also equipped with thrust roller device to control the up and down movement of the kiln body.

1. High Automation Level
The lime rotary kiln is with advanced structure. Its pre-heater with low-pressure loss can improve preheating effect efficiently. After preheating, the resolution ratio of the lime-stones can reach 20~25% when they enter the kiln. Besides, the lime-stones, with fine fraction about 10~15mm, can be used directly.

2. Waste Heat Reused Effectively
The two sides of the reliable rotary lime kiln are sealed by the combined scales, which can make the air leakage coefficient less than 10%. Composite refractory materials should be used in order to reduce the loss of radiant heat.

3. Low Energy Consumption
The filling vertical cooler, round or square, can be zoned-ventilation, which can make the temperature of lime-stones in the cooler at about 80°C. As a result, it is very convenient to transport and store. It can also pre-heat the secondary air up to the temperature above 700°C. Then the waste heat can be recycled to reduce energy consumption.

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Model (m) Volume (m³) Output (t/d) Temperature ( ℃ ) Heat Consumption (kJ/kgCaCO3)
Φ2.5 × 40 142 150 1350/1250 5300/5000
Φ2.8 × 42 190 200 1350/1250 5300/5000
Φ3 × 46 235 250 1350/1250 5300/5000
Φ3.2 × 50 292 300 1350/1250 5300/5000
Φ3.5 × 54 390 350 1350 5225
Φ3.6 × 56 430 400 1350 5225
Φ3.8 × 58 505 500 1350 5100
575/548 600 1350 5100
Φ4.3 × 58 670 750 1350 4810
Φ4.3 × 64 738 800 1350 4810
Φ4.8 × 68 1005 1000 1350 4810
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