Rotary kiln is the equipment which is widely used for dealing with solid material mechanically, physically and chemically in building material industry, metallurgy industry, chemical engineering industry and environment protection industry.

Rotary kiln can be divided into metallurgy rotary kiln, chemical engineering rotary kiln, and building material rotary kiln according to its different dealing materials. The building material kiln is mainly used in calcining clinker cement, limestone and porcelain granule. Metallurgy rotary kiln is mainly used for the magnetizing calcining of lean iron ore in iron and steel plant in metallurgy industry, the chromites and josephinite oxidizing calcining, calcining of dewalquite and clinker aggregate and aluminum hydroxide roasting in aluminum factory. Chemical engineering rotary kiln is used in chemical plant for chromium ore and chromium ore powder roasting. The limestone rotary kiln (activity limestone kiln) is used for calcining activity lime and dolomite in iron and steel plant and ferroalloy works. 

The change in thermal current's speed and temperature of drying medium is the main factor affecting the operation and drying quality of drying rotary kiln in the manufacturing process of drying rotary kiln. The guiding theory of drying rotary kiln's temperature field control: by controlling the distribution of thermal current's speed and temperature of drying medium in rotary kiln and the quality of the gas combustion, a stable and appropriate drying environment can be formed in the kiln, which is temperature field, to satisfy the demand of drying technics.

Advantages of limestone rotary kiln

1. With advanced structure, the low pressure loss of the vertical preheater can speed up the preheating process, the decomposition rate in the kiln of the preheated limestone can be 20--25%, and can use directly the 10-15mm fine grade limestone.

2. Both ends of rotary kiln is sealed by combination scale, which ensures the index of air leakage less than 10%. In order to lessen the radiation loss, it adopts compound refractory materials.

3.Round or square vertical cooler with filling type and ventilated area, which make the lime temperature 800 degree centigrade ambient temperature. It is easy to transport, store, and can be preheated the secondary kiln air to above 700 degree centigrade, which reduce the moving parts and special materials.

As the professional manufacturer of complete sets of mining machinery, such as limestone rotary kiln, active lime plant, magnesite and dolomite plant, ZK is always doing the best in products and service. Please contact us.