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Rotary Kiln

Active Lime Rotary Kiln

    Active lime rotary kiln belongs to a construction material equipment. It is developed based on traditional rotary kiln by combining feature of active lime product index. Taeda active lime rotary kiln is characterized by high reliability and low energy consumption. It enjoys great popularity among rotary kiln customers. 

    Application:Widely applied in construction material, refractory material and environment protection industry for calcining active carbon, lime and calcium carbonate.

    物料

  • Order online Hotline:18939509384
Advantage:

Environmental Friendly and High Automation Level

Taeda active lime rotary kiln is featured in less pollution, low energy consumption, high mechanical level and high automation level(PLC/DCS bus control).


Advanced Technology and Low Energy Consumption

Taeda active lime rotary kiln constantly upgrades its combustion system. Besides common coal firing, it can also use coal gas, natural gas and other clean fuel. By adopting modern new burner, it can fully make use of energy and reduce pollution caused to environment.


Great Adaptablity and God Product Quality

Cao content of finished product is higher than 92% and activeness is higher than 320ml. Because of simple maintenance and low energy consumption, Taeda active lime rotary kiln is priority among customers' options.


Stable Running Performance and High Capacity

Taeda active lime rotary kiln adopts new seal technology and device, which makes sure stably running and high production capacity.


Working principle:

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1. Calcining theory summary: According to chemical and physical reaction inside kiln, calcining process of active lime is divided into three stages which are preheating zone, calcining zone and cooling zone respectively.

2. Preheating zone: Preheating zone is above kiln body. In this area, materials will exchange heat with hot airflow from calcining zone. Correspondingly, moisture in lime will evaporate. Initial uneven heating of lime produces cracks, volume expansion and a decrease in ultimate compressive strength. Fuel is gradually heated to about 900°C and enters the calcination zone.

3. Calcining zone: Calcining zone is in middle of active lime rotary kiln. In this area, blower will send proper amount of air for helping combustion. Large amount of heat will be released while fuel is burning. Temperature will gradually increase to 1100℃ to 1200℃. Released air will enter preheating zone for preheating. Decomposing speed of active lime is relevant to speed at which gas produced by temperature of calcining zone is carried away. Meanwhile, fuel ratio and air sent in will also affect decomposing speed.   Product of decomposition reaction rate and the time passing through the firing zone is equal to particle size of material. Active lime is cooked and burned through. If it is smaller than material particle size, less burning will occur. If it is larger than material particle size, overburning will occur.

4. Cooling zone: Cooling zone is at lower part active carbon rotary kiln and extends to ash outlet. Remaining calcium carbonate will not decompose anymore in this area. In this area, heat of lime will be made use of to preheat air (400-500℃)and calcined lime will be cooled. Relative position of each zone is basically fixed, but cannot be totally separated. These zones will change along with kkraw material and fuel condition. During operation, calcining zone must be at middle of kiln body.

Delivery display:
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Project case:
  • 回转窑生产现场

    Jinan Lime Kiln Production Line

    Attracted by lime rotary kiln manufactured by Zhengzhou Taida, Jinan customer purchased a whole set of lime rotary kiln calcining machine to fulfill final production aim.

    Raw material: Lime
    Output capacity:350t/d

  • 回转窑生产现场

    10TPH Russia Gypsum Production Site

    Gypsum for is with high moisture. For guaranteeing smooth feeding, there is a certain inclination of feeding end for gypsum kiln. Whole line contains burner, rotary kiln and exhaust disposal.

    Raw material:Phosphaste gypsum
    Output capacity:1-10T/H

Working parameter:
Model(m)DimensionCapacity(t/d)Rpm(r/min)Power(kw)Weight(t)Notes
Diameter(m)Length(m)Slope(%)
Φ2.5×402.5403.51800.44-2.4455149.61
Φ2.5×402.5403.51800.44-2.4455149.61
Φ2.5×502.55032000.62-1.8655187.37----
Φ2.5×542.5543.52800.48-1.4555196.29

Decomposition outside the kiln

Φ2.7×422.7423.53200.10-1.5255198.5----
Φ2.8×442.8443.54500.437-2.1855201.58

Decomposition outside the kiln

Φ3.0×453453.55000.5-2.4775210.94----
Φ3.0×483483.57000.6-3.48100237

Decomposition outside the kiln

Φ3.0×603603.58000.3-2100310
Φ3.2×503.550410000.6-3125278

Decomposition outside the kiln

Φ3.3×523.3523.513000.266-2.66125283


Preheat decomposition

Φ3.5×543.5543.515000.55-3.4220363Preheat decomposition
Φ3.6×703.6703.518000.25-1.25125419Waste heat power generation
Φ4.0×56456423000.41-4.07315456Preheat decomposition
Φ4.0×604603.525000.396-3.96315510Preheat decomposition
Φ4.2×604.260427500.41-4.07375633Preheat decomposition
Φ4.3×604.3603.532000.396-3.96375583Preheat decomposition
Φ4.5×664.5663.540000.41-4.1560710.4Preheat decomposition
Φ4.7×744.774445000.35-4630849Preheat decomposition
Φ4.8×744.874450000.396-3.96630899Preheat decomposition
Φ5.0×74574460000.35-4710944Preheat decomposition
Φ5.6×875.68748000max4.238001265Preheat decomposition
Φ6.0×95695410000max5950x21659Preheat decomposition
Applicable material:

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