Rotary furnaces are quite common in our daily lives, but users' understanding of them is limited to the wide range of applications and classifications, and they have no knowledge of their working principles. To understand rotary furnaces, it is necessary to start from the inside in order to truly facilitate future work. Therefore, our company's technical department has compiled the following content:
Rotary furnaces are combustion equipment, as well as heat transfer equipment. They also serve as materials The function of conveying is to transport raw materials from the feed end to the discharge end. The three aspects of fuel combustion, heat transfer, and raw material movement must be coordinated reasonably in order to ensure that the heat generated by fuel combustion can be transmitted to the raw materials in a timely manner during the passage of the raw materials through the rotary kiln, achieving the goal of high yield, high quality, and low consumption. The process of material calcination involves feeding raw materials from the cold end of the kiln. Due to the kiln's certain inclination (usually 3-3.5%), the raw materials are continuously moved towards the hot end through the continuous rotation trajectory, and stirred in the rotary furnace to mix and react with each other. The fuel is injected into the natural end, and under the assistance of air combustion, it releases heat and produces high-temperature flue gas. The hot gas is driven by the fan and flows from the natural end to the secondary end. The heat is transmitted to the material through flame radiation, convection of hot gas, and conduction of kiln bricks (kiln skin). The material and flue gas exchange heat during the reverse movement, and the material moves forward in the kiln based on the inclination of the kiln barrel and the rotation of the kiln, causing the raw material to be burned into clinker. If a certain filling coefficient needs to be maintained in the kiln, it is necessary to coordinate the kiln speed and feeding speed, and maintain a certain proportion; This is also a process condition for improving production and quality, stabilizing the thermal system, and overcoming agglomeration
This is where we introduce the working principle of rotary furnaces. If you want to learn more about rotary furnaces, you can call us for consultation
