Rotary Kiln

Hongji Group Product Superiority

Rotary Kiln is also known as calcining kiln, belonging to building material equipment. According to the difference of processed material, rotary kiln can be classified into cement rotary kiln, metallurgy chemical kiln, and lime rotary kiln. 

Cement kiln is mainly used to roast cement clinker and can be classified into dry-type cement kiln and wet-type cement kiln.

Rotary kiln is used for making of cement clinker and there are dry and wet methods to make cement. 

Metallurgy chemical kiln is used for magnetic roasting of iron ore and oxidizing roasting of chrome and nickel in the steel factory, baking high-alumina mine in the refractory material factory,baking chamotte and alumina in the aluminium factory and baking chrome ore and chrome powder in the chemical plant. 

Limekiln (active limekiln) is used for baking active lime or lightly burning dolomite in steel factory or ferroalloy factory.

The Classification of Rotary Kiln

Metallurgy chemical kiln is mainly used for magnetizing roast in metallurgy industry, iron and steel plant and lean iron ore;

oxidizing roasting for chromium, nickel and iron ore; 

roasting high alumina bauxite ore in refractory material factory; roasting clinker and aluminium hydroxide in aluminium factory; and roasting chrome ore in chemical factory.

 Lime kiln is used for roasting active lime and light roasting dolomite for steel factory and ferroalloy works.

The Application of Rotary Kiln in Metal Industry

Rotary kiln is used in non ferrous and black metallurgy to roast Iron, aluminum, copper, zinc, tin, nickel, tungsten, chromium, file and other metals. In addition, rotary kiln is used to roast the ore, concentrate and tertium quid.

The Rotary kiln is the host equipment of the cement production

Raw meal powder feed from high-end tremie pipe into kiln preheater cylinder body, due to the tilting and slowly revolving of the kiln cylinder, the material produces a namely along the circumferential direction, then along the axial and the compound movement from high to low end mobile, raw material in the furnace through the decomposition, sintering process, such as after calcining cement clinker from the kiln at the bottom of the barrel, discharged into the cooling machine.

The fuel entered from the kiln head injection, combustion in furnace, heat from the raw material, make raw calcinations clinker, and produce hot air when material exchange in formation in the process, from kiln end into the kiln system, and finally by the chimney into the atmosphere.

The Working Process of Rotary Kiln

1. Rotary kiln mainly consists of rotary drum, supporting device, wheeled supporting device, sealing device for head and end of the kiln, coal-injection duct and others.

2. Kiln body is a certain angle to the horizon and the whole kiln is supported by the supporting device and the wheeled device can fix the position of kiln.

3. Except the main conveying device, there is also assistant conveying device in the conveying part to ensure that the kiln can still moves slowly even when power off to avoid the deformation of kiln.

The head of the kiln adopts cover-type sealing and the end of the kiln uses the axial contact sealing device which insures the reliability of sealing.

4. Working temperature reaches 950^oC-1050^oC can roast superfine Kaolin. In the process of processing the Taoli sand, temperature can be adjusted according to different materials to achieve the effect. 

This kind of toasting technology testified to be energy saving, and the product has high quality and stable performance.

The Configuration and Price of Rotary Kiln:

Different models of Rotary Kiln have different prices. If you want to know the latest information about the selection and design of Hongji Rotary Kiln, please leave us a message!