Cement Plant, Steel Mill, Chemical Plant & Incinerator.
A Rotary kiln is a pyroprocessing device used to raise materials to a high temperature (calcination) in a continuous process.Rotary kiln is the main equipment of calcining the cement clinker. It is the equipment calcining the high grade cement in the cement factory. The rotary kiln is widely used in the metallurgy, chemical industry, construction and other industries.
1. Rotary kiln has many advantages, such as great production capacity, high mechanization and automation, strong adaptability to raw material, high activity of its product, stable production operation, perfect environmental protection measures, etc. Therefore, it is widely used in many countries.
2. The rotary kiln has simple structure, and the kiln body is mainly composed of cylinder, bearing, drive, sealing device for kiln head and kiln tail. It has convenient and reliable production process control, less quick-wear parts and high operation rate. It is equipment for cement plants to calcine cement clinker.
3. Through technology innovation, the calcination system of rotary kiln adopts the most advanced hydraulic gear wheel device at home and abroad, and adopts metering plunger pump with high measuring accuracy, high-precision flow speed control valve, contact graphite block sealing device and other domestic advanced technologies. It is easy to operate and its performance is reliable. The thermal regulation being stabilized and the operation rate being improved, compared with equipment with the same specifications, the operation rate increases by 10%, yield by 5%-10%, heat rate reduces by 15%.
The rotary kiln is a cylindrical vessel, inclined slightly to the horizontal. The material is fed into the upper end of the cylinder. As the kiln rotates, the materials gradually move towards the lower end, and they may go a certain amount of stirring and mixing. Hot gases go through the rotary kiln, in the same direction as the process material, but usually in the opposite direction. The hot gases may be generated in an external furnace, or may be generated by a flame inside the kiln. They are repetitively scattered in the air so that they are in full contact with the hot air, the material is dried gradually.