The main structure of rotary kiln

Since the rotary kiln is widely used, this equipment largely determines the quality, yield and production cost of calcined kaolin. We need to understand not only its application and performance, but also its main structure.

1. On the contrary, the cooler and the preheater are devices for rapidly cooling the materials in the furnace after firing, and are mainly used to rapidly cool the finished products.

2. The kiln tail is also an important part. The shape of the feeding end is similar to the kiln cover, and the main part is the function, responsible for feeding and sealing.

3. The kiln head is the discharge part of the rotary kiln, and its diameter is larger than that of the kiln. It is sealed by stainless steel fish scales and kiln body, and the main components include inspection port, coal injection nozzle, trolley and observation hole.

4. The support frame can make the equipment more sturdy, so that it will not shake during work and stabilize production; the support frame can prevent the deformation of our rotary kiln equipment during use, and is mainly used as a fixed device. If the equipment is not operated properly, it will be deformed, and the bracket can facilitate the hoisting and transportation of our equipment.

5. The preheating tower, also known as the preheater, is a device that uses the waste heat of the exhaust gas to preliminarily heat the material before entering the kiln. The principle is that the waste heat discharged from the kiln end passes through the preheating tower equipped with raw materials to realize the heating process of raw materials. Adding a preheating tower can effectively reduce energy consumption and improve the quality of finished products.

6. The conveyor belt of the rotary kiln is the material conveying device of the kiln, and various forms of damage often occur during use, such as edge delamination and festering and cracks; long-distance longitudinal tearing or deep scratches, holes and large Area wear, covered rubber bulges or peelings, internal defects in joints, etc. Among them, longitudinal tears and edge fractures are more common and need to be repaired.

7. The main body of the kiln is usually 30-150 meters long, and there are 3-5 rolling rings in the middle of the cylinder. Most of the cylinders are processed by the factory into 3~10 sections, transported to the destination by large trucks and repaired by welding. Among them, the roller ring part is cast from molten steel, and the kiln body of the roller ring part is slightly thicker than the steel plate of other kiln bodies because it needs to bear the weight. The supporting tug and the rolling ring are connected with the foundation correspondingly, and the foundation is the load-bearing pillar of the whole kiln. Usually, a set of idler gears consists of two idler gears and two stopper gears. During normal operation, refractory bricks should be laid inside.

To sum up, we know the main structure of the rotary kiln, which can not only better understand it, but also help users to use the equipment better. When the equipment fails, it can be found and solved in time. If you want to learn more about equipment, please visit other sections of this website.