Rotary kiln

Rotary kiln refers to rotary calcination kiln (commonly known as rotary kiln), its main role is to sinter its substances into physical or chemical reactions, it is widely used in metallurgy, chemistry, construction, environmental protection, mineral processing.

Classification of rotary kilns:

Rotary kilns can be divided into different types according to their application in different fields. They can be divided into cement kiln, metallurgical chemical kiln and lime kiln according to different materials. Rotary kiln can be divided into cement kiln, metallurgical and chemical kiln and lime kiln according to different materials. Cement kiln is mainly used for calcining cement clinker, which can be divided into two categories: dry kiln and wet kiln. Metallurgical and chemical kilns are mainly used for magnetizing roasting of lean iron ore in iron and steel plants of metallurgical industry; oxidizing roasting of chromium and nickel iron ore; roasting of high-bauxite vanadium ore and clinker and aluminium hydroxide in bauxite plants of refractory materials plants; roasting of chromium ore sand and chromium ore powder in chemical plants. Lime kiln (active lime kiln) is used to roast active lime and light-burning dolomite for iron and steel plants and ferroalloy plants.

Rotary kiln components:

The equipment consists of cylinder body, wheel belt, supporting wheel, retaining wheel, transmission device, sealing device and cooling device (multi-cylinder cooler, etc.). There are bricklaying rings in the cylinder body, firebrick lining, and material retaining rings in the cold end; chains and other hot metal exchangers or slurry evaporators are also hung in the cold end of the wet kiln; furnaces are installed at the end of the kiln. Grate heater; suspension preheater kiln tail is equipped with suspension preheating device; vertical drum preheater kiln is also equipped with blanking tongue, other kiln types are equipped with blanking device. A manhole door is opened on the cylinder body and a reinforcement ring is welded to increase the stiffness of the kiln body. The hot end of the kiln is connected with a fire cover. The kiln head is provided with a pulverized coal combustion device, and the cold end is connected with the smoke chamber. Rotary kiln is a cement clinker calciner which combines combustion, heat transfer, mixing, reaction heat storage and transportation.