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 Rotary Kiln belongs to building material equipment, according to different materials, which can be divided into cement kiln, metallurgy chemical kiln and lime kiln. The lime kiln is used for the calcination of limestone (calcium carbonate) to produce the form of lime called quicklime (calcium oxide). The chemical equation for this reaction is

CaCO3 + heat → CaO + CO2

This reaction takes place at 900 °C (1650 °F; at which temperature the partial pressure of CO2 is 1 atmosphere), but a temperature around 1000 °C (1800 °F; at which temperature the partial pressure of CO2 is 3.8 atmospheres[1]) is usually used to make the reaction proceed quickly.[2] Excessive temperature is avoided because it produces unreactive, "dead-burned" lime.

 The rotary kiln consists of a tube made from steel plate, and lined with firebrick. The tube slopes slightly (1~4°) and slowly rotates on its axis at between 30 and 250 revolutions per hour. Rawmix is fed in at the upper end, and the rotation of the kiln causes it gradually to move downhill to the other end of the kiln. At the other end fuel, in the form of gas, oil, or pulverized solid fuel, is blown in through the "burner pipe", producing a large concentric flame in the lower part of the kiln tube. As material moves under the flame, it reaches its peak temperature, before dropping out of the kiln tube into the cooler. Air is drawn first through the cooler and then through the kiln for combustion of the fuel. In the cooler the air is heated by the cooling clinker, so that it may be 400 to 800 °C before it enters the kiln, thus causing intense and rapid combustion of the fuel.

Cylinder

Girth Gear, Support Roller and Tyre

 Active lime production plant with capacity 2000TPD in Yunnan Province

 We also provide professional logistics solutions for our clients, like sea transportation,  railway transportation, truck transportation and also air transportation.

1 Q:  Can I visit your factory?

Yes! Every client of Yingyong is welcomed to visit our factory in any time, it will be a big pleasure for us!

2 Q: I need the rotary kiln, but I am not sure about the size , can you help  me with it?

 Of course! There are  very expericened engineers work in our company, if you have any question, just feel free to contact us!

3 Q: In which countries do your products have been sold?

Our kilns markets including southeast Asia, western Asia, Africa, Europe, Middle East, etc. So far, we are still in cooperating.

4 Q : I want to build a active lime production line with capacity 500TPD, but I am new in this industry, could you help me with it? 

Sir, please don't worry! Yingyong have done a lot of EPC projects not just in China also aroud the world. We will provide you the necessary help from the design to the equipment suppliment, and the installation and commission!