News Date:2015-09-14 14:58:48
A rotary kiln is commonly used to produce cement clinker. It plays a critical role in the dry process of cement manufacture. The process taking place in a cement kiln is rather straightforward, that is, to bring the fine powdered limestone and clay to high temperatures for calcination.
The Lime Rotary Kilns process flow is:
Feed the limestone and fuels into the lime kiln, after preheating up to 850, the limestone and fuels begin to decompose, when the temperature reaches up to 1200, calcination is complete. After cooling, the lime products will be sent out. This is the lime production. Different Rotary Kiln shapes have different ways of preheating, calcining and cooling. Although their process principles are the same, such as the raw materials quality, lime quality and consumption etc, these equipment values have a very great distinction.
Rotary kiln tyres maintenance work
Rotary Kiln is a kind of heavy equipment , while working , frictional loss between tyre and the machine is large .If the machine works long hours under hard friction, it Will not only affect working efficiency, but also may result in reduce the Rotary Kilnslife. In some ways, in order to complete the maintenance, choosing superior lubricant can reduce enterprises losses Increase enterprise product production, which is an indispensable work for enterprise.
Advices are as follows.
1. Choices of pressure additive
Due to its special process, the rotary kiln cannot avoid from hard friction by using grease lubrication only. As the carrier, when the temperature is over 200, the antirust greases evaporation loss will be serious, and its lubrication action can only lasts in a short time. So, choosing Solid lubricating material of full lubrication, heat resisting and anti-pressure is necessary. Solid lubricating material has good thermal stability, it has advantages of sending out heat.
2. Choices of lubricating oil
The rotary kiln tyre works under great force and high temperature. Therefore, the machine has serious requirement on oil. Now, we choose synthetic lubricating oil as the carrier of HF-high temperature tyre lubricant, this kind of oil is lower than 100, its viscosity is above 100 centistoke, and flash point is higher than 320. At the same time, we choose composite high-temperature lubricate grease with dropping points more than 300.
Actually , the choices of Rotary kiln Tyres maintenance work should be based on practical situation, different types of rotary kiln equipment have different choices on lubricant , their maintenance also have different advantages and disadvantages .
