Description of Rotary Kiln: the rotary calcining kiln, commonly known as rotary kiln, belongs to the class of building materials equipment. The rotary kiln can be divided into cement kiln, metallurgy chemical kiln and lime kiln according to different treating materials.

Cement rotary kilns is used for calcine cement clinker, including dry process production and wet process. Metallurgy chemical kiln is used for magnetic roast poor iron ore in steel plants; oxidizing roast chrome, nickel iron ore; calcine high aluminum vanadium and soil ore in refractory plant, roast clinker or aluminum hydroxide in aluminum manufacturer and roast chrome ore in chemical plant. Lime kiln (active lime kiln) is used to roast active lime and light roast dolomite for steel works and ferroalloy works. 

The main structure of rotary kiln body: the kiln shell, rim, thrust roller. 

Rotary kiln classification: according to different treating materials, it can be divided into cement kiln, metallurgy chemical kiln and lime kiln, wet process rotary kiln and dry process rotary kiln. And also it can be divided into metallurgy rotary kiln, Zinc oxide rotary kiln, lime kiln, carbon rotary kiln, clay-grain rotary Kiln, limonite rotary kiln, hematite rotary kiln, kaolin rotary kiln, cement rotary kiln, limonite roasting rotary kiln, talcum powder calcined kiln, metal magnesium rotary kiln, bauxite rotary kiln, magnesia rotary kiln, etc. 

Cement rotary kiln Category 

There are two main categories of cement rotary kiln: one is rotary kiln, whose kiln shell lies horizontally with slight slope, and it can do rotary movement; the other one is called shaft kiln, whose kiln shell is set vertically without rotation. It is composed by cylinder, bearing devices with gear wheel, gear, movable kiln head, sealing device and pulverized coal injection pipe device. Cement rotary kiln body has a certain inclined angle with horizontal, the whole body is supported by roller device with catch wheel to control kiln body moving; Besides main drive, the transmission system is also set auxiliary gear to keep rotating when main power source breaks to prevent bending kiln; both head and tail of kiln adopt advanced technology to ensure sealing reliability.