Rotary kiln means rotary calcination furnace. According to the material features the rotary kiln can be divided into cement kiln, metallurgical kiln, chemical kiln and lime kiln. the cement kiln is mainly used for calcination cement clinker and this kind of kiln can also be divided into dry process rotary kiln and wet process rotary kiln. The metallurgical and chemical kiln is mainly used in metallurgical and steel plant. The lime kiln is used in the steel plant.
The rotary kiln is one main equipment in the cement production,is also named as the heart in the cement plant. The rotary kiln consists of main kiln shell, driving device, supporting device, thrust roller device, kiln head sealing device, kiln rear sealing device, kiln hood and so on.