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Working principle of metallurgical rotary kiln

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Metallurgical rotary kiln is an equipment that puts materials into a rotating cylinder and makes the materials heat treated at high temperature through the rotation of the rotating cylinder. When working, the material in the rotary cylinder due to gravity and cylinder tilt and constantly move to one end, at the same time by gas liquefied petroleum gas and other energy input for heating, to achieve drying, calcination and other processes. The whole working process is divided into several zones, including preheating zone, drying zone, reduction zone, calcination zone and cooling zone.
The working principle of metallurgical rotary kiln can be simply summarized as the following steps. First, in the preheating zone, the material is heated to a certain temperature to evaporate moisture and volatile substances; secondly, in the drying zone, the material continues to heat up and dry; then In the reduction zone, part of the oxide is reduced to metal; then the calcination zone, the material is further heated and chemically reacted; finally, the cooling zone, the material is cooled to room temperature. The whole process ensures the high temperature treatment and smelting effect of the material.
Through the above working principle, the metallurgical rotary kiln can meet the heat treatment needs of different materials. It is an indispensable and important equipment in the metallurgical industry and is of great significance to improve production efficiency and product quality.

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