1. Conveyor belt: 

The conveyor belt is an indispensable material conveying device in the rotary kiln system. It is responsible for stably and continuously conveying the materials to be calcined from the storage area to the feed port of the rotary kiln to ensure the smooth progress of the production process.

2. Preheating tower: 

The preheating tower, also known as the preheater, is a key equipment before the material enters the rotary kiln. It uses the waste heat of the exhaust gas discharged from the rotary kiln to preliminarily heat the material, effectively increasing the temperature of the material, reducing energy consumption, and helping to improve the quality grade of the final product. The preheating tower is mostly a vertical structure filled with raw materials, and the preheating process is achieved through heat exchange between the exhaust gas and the raw materials.

3. Cooler: 

The cooler is an important cooling device after the rotary kiln material is fired. It looks similar to a small rotary kiln, but with a smaller diameter and shorter length, and no refractory bricks are required to be laid inside, but instead are replaced by a lifting plate. The main function of the cooler is to quickly cool down the high-temperature finished product to prevent quality degradation or damage caused by excessive temperature, and it also helps with subsequent packaging and transportation.

These supporting equipment together constitute the core part of the rotary kiln calcining system, ensuring the stability and efficiency of the production process. In practical applications, it may also be necessary to further optimize and adjust the equipment according to specific production needs and material characteristics to meet the quality and output requirements of different products. By rationally configuring and using these equipment, the overall performance and economic benefits of the rotary kiln calcining system can be significantly improved.