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Limestone kiln Furnace

Limestone kiln Furnace

Specifications:

Rotary kiln belongs to building material equipment, which can be divided into cement kiln, metallurgy chemical kiln and lime kiln according to different materials.

Application Range:widely used in the fields of cement, Nonferrous Metallurgy, ferrous metallurgy, refractory material, chemical materials, paper making.

Applicable Materials:Ceramic sand, ceramsite, cement, lime, limestone, active lime, cement clinker, building ceramsite, building gypsum and etc.

Advantages

Low energy consumption 

Our rotary kiln adopts reasonble running parameter; coal and electricity 

Easy to maintain and operate

Operation simple, reliable, less operators, process stability.

With high automation level 

The whole production line needs only one person to supervise. finished

Long service life, less quicky-wear parts

Service life can last for 8 to 10 years. with good maintenance, it can be used for longer.

Working Principle

There is a certain inclination between rotary kiln machine and horizontal level. The kiln can rotate along the driven of big gear. After the entry of limestone and fuel, when the kiln body is preheated to about 850 degrees, decomposition will be finished. Calcination can be fulfilled when the temperature reaches to 1200 degrees. After cooling process, materials will be discharged out. Different kilns hold different preheating, calcining, cooling and ash-discharging ways.
Limestone and fuels are put into limestone kiln. After kiln body is preheated to 850 degree, decomposition will start. Calcining process will be finished when the temperature reaches to 1200 degrees. After cooling, materials will be discharged out of the kiln. All the production processes of limestone are finished. Different kilns holds different preheating, calcining, cooling and ash discharging methods. Our machine holds advantages of high quality of raw materials, high thermal-value of fuels, and less energy consumption. The size of limestone will change with calcining time. Activity of limestone will change oppositely with calcining time and combustion temperature.
Reliable seal performance is helpful for air leakage factor. Limestone rotary kiln holds stuffed and sectioned cylinder and square vertical cooler, which makes low temperature of lime. Therefore, the factors mentioned above makes great convenience for conveying, transportation and storage. In addition, secondary air can be preheated to over 7000 degrees. Thus, moving parts and special materials can be decreased. The primary principle of lime calcining is to rely on high temperature. Then decompose the calcium carbonate into calcium oxide and carbon dioxide. 

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Project Case

Technical Parameters

 
Specifications (m)
Dimension Power (kw) Total weight (t) Notes
Diameter (m) Length (m) Inclination (%) Output (t/h) Rotary speed (r/min)
Φ2.5×40 2.5 40 3.5 180 0.44-2.44 55 149.61 With vertical preheater
Φ2.5×50 2.5 50 3 200 0.62-1.86 55 187.37 ----
Φ2.5×54 2.5 54 3.5 204 0.48-1.45 55 196.29 ----
Φ2.7×42 2.7 42 3.5 320 0.10-1.52 55 198.5 ----
Φ2.8×44 2.8 44 3.5 400 0.437-2.18 55 201.58 Decomposition outside the kiln
Φ3.0×45 3 45 3.5 500 0.5-2.47 75 210.94 ---- 
Φ3.0×48 3 48 3.5 700 0.6-3.48 100 237 Decomposition outside the kiln
Φ3.0×60 3 60 3.5 300 0.3-2 100 310 Bauxite calcining kiln
Φ3.2×50 3.2 50 4 1000 0.6-3 125 278 Decomposition outside the kiln
Φ3.3×52 3.3 52 3.5 1300 0.266-2.66 125 283 preheat decomposition
Φ3.5×54 3.5 54 3.5 1500 0.55-3.4 220 363 preheat decomposition
Φ3.6×70 3.6 70 3.5 1800 0.25-1.25 125 419 Residual heat power
Φ4.0×56 4 56 4 2300 0.41-4.07 315 456 preheat decomposition
Φ4.0×60 4 60 3.5 2500 0.396-3.96 315 510 preheat decomposition
Φ4.2×60 4.2 60 4 2750 0.4-3.98 375 633 preheat decomposition
Φ4.3×60 4.3 60 3.5 3200 0.396-3.96 375 583 preheat decomposition
Φ4.5×66 4.5 66 3.5 4000 0.41-4.1 560 710.4 preheat decomposition
Φ4.7×74 4.7 74 4 4500 0.35-4 630 849 preheat decomposition
Φ4.8×74 4.8 74 4 5000 0.396-3.96 630 899 preheat decomposition
Φ5.0×74 5 74 4 6000 0.35-4 710 944 preheat decomposition
Φ5.6×87 5.6 87 4 8000 Max4.23 800 1265 preheat decomposition
Φ6.0×95 6 95 4 10000 Max5 950×2 1659 preheat decomposition

Core Equipment

Applicable Materials

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