The Advantages of Calcining Active Lime with Rotary Kiln

Date:11/04/2015 12:32:23

Active lime has a broad application in iron and steel, aluminum oxide, magnesium metal, calcium carbide, power plant desulfurization and papermaking industry. Active lime is one of the important auxiliary raw materials of steelmaking. Burning active lime with rotary kiln has a number of advantages and a promising development prospect.

1. Rotary kiln is of high yield and very suitable for the large scaled active lime production line. Now there has been 2200 t/d limestone rotary kiln put into production around the world; And many active lime rotary kilns with a daily output of 150 t to 300 t are operating in good condition at home and abroad.

2. Rotary kiln belongs to open-type calcining. The kiln body has a simple structure and the flue gas containing sulfur can be discharged timely, so our rotary kiln fully meets the requirements of steelmaking. Meanwhile, materials in the kiln scroll forward and are heated evenly.

3. the rotary kiln can directly calcine the 10-50 mm of fine grained limestone. Generally, the 0-30 mm fine limestone cannot be processed by other type of kiln. Rotary kiln production line can fully utilize the high-quality limestone resources.

4. Equipping the kiln tail with vertical preheater can make a full use of the high temperature flue gas generated by the calcinations in the kiln, which can not only greatly improve the yield of rotary kiln, but also largely reduce the unit heat consumption.

5. On the kiln head there is equipped with vertical cooling machine, which can make the high temperature lime cool down sharply, promote product activity, and make it easy for transportation and storage.

6. The flue gas emitted through the vertical preheater has a low temperature and low dust content, simplifying the subsequent processing configuration for flue gas.

7. It is the most obvious advantage that the lime calcined by rotary kiln has stable quality.