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Active Lime Rotary Kiln

Active lime rotary kiln is a device for calcination of active lime. It is made up with barrel, supporting device, supporting device with catch wheels, transmission device, lubrication device and sealing device for kiln tail. Both ends of the rotary kiln are well sealed using combined-type flakes, which helps to reduce the air leakage coefficient to less than 10 percent. To reduce radiation heat loss, composite refractory materials are used to make the lining of the kiln. The kiln features simple structure, high reliability and high degree of automation.

Generally, vertical preheater with reasonable structure and low pressure drop is adopted to increase preheating efficiency. The vertical preheater will enhance the decomposition rate of the lime in the kiln up to 20 to 25 percent. Lime with size ranging from 10 to 15mm can be delivered in the kiln directly without preheating.

Fill-up round or square vertical cooler with zoned ventilation is able to ensure the temperature of lime discharged from the cooler is 80℃ higher than environment temperature, which facilities transportation and storage of the lime. Meanwhile, the exhaust gas, which leaves the cooler and then blows into the kiln, will be heated to over 700℃. In this way, the waste heat is efficiently used, thereby reducing energy consumption.

Technical Parameters
Capacity( t/d ) 150 200 250 300 350 400 500 600 750 800 1000
Product Active Lime and Dolomite Active Lime and Dolomite Active Lime and Dolomite Active Lime and Dolomite Active Lime and Dolomite Active Lime and Dolomite Active Lime and Dolomite Active Lime and Dolomite Active Lime and Dolomite Active Lime and Dolomite Active Lime and Dolomite
Preheater Round or Polygonal Vertical Preheater Round or Polygonal Vertical Preheater Round or Polygonal Vertical Preheater Round or Polygonal Vertical Preheater Round or Polygonal Vertical Preheater Round or Polygonal Vertical Preheater Round or Polygonal Vertical Preheater Round or Polygonal Vertical Preheater Polygonal Vertical Preheater Polygonal Vertical Preheater Polygonal Vertical Preheater
Rotary Kiln Size( m ) Φ2.5×40 Φ2.8×42 Φ3×46 Φ3.2×50 Φ3.5×54 Φ3.6×56 Φ3.8×58 Φ4×60/Φ4.2×50 Φ4.3×58 Φ4.3×64 Φ4.8×68
Effective Volume( m³ ) 142 190 235 292 390 430 505 575/548 670 738 1005
Buring Temerature( ℃ ) 1350/1250 1350/1250 1350/1250 1350/1250 1350 1350 1350 1350 1350 1350 1350
Cooler Square Vertical Cooler Square Vertical Cooler Square Vertical Cooler Square Vertical Cooler Square Vertical Cooler Square Vertical Cooler Square Vertical Cooler Square Vertical Cooler Square Vertical Cooler Square Vertical Cooler Square Vertical Cooler
Fuel Gas, Coal Powder Gas, Coal Powder Gas, Coal Powder Gas, Coal Powder Gas, Coal Powder Gas, Coal Powder Gas, Coal Powder Gas, Coal Powder Gas, Coal Powder Gas, Coal Powder Gas, Coal Powder
Heat Rate( KJ/KgC3O ) 5300/5000 5300/5000 5300/5000 5300/5000 5225 5225 5100 5100 4810 4810 4810
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