Limestone kiln Furnace
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.
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.
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.
|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|
|Φ2.8×44||2.8||44||3.5||400||0.437-2.18||55||201.58||Decomposition outside the kiln|
|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|
|Φ3.6×70||3.6||70||3.5||1800||0.25-1.25||125||419||Residual heat power|