The rotary furnace is a common kiln equipment in production, but users' understanding of it is limited to a wide range of applications and classifications, and they have no knowledge of its working principles. To understand the rotary furnace, 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:
The rotary furnace is a combustion equipment, in which coal powder burns to generate heat;
Time is also a heat transfer equipment, where raw materials absorb the heat of the gas for calcination. In addition, it is also a conveying equipment that transports 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 rotary furnace developed and designed by Xianyang Ceramic Research Institute is a process of calcining materials by feeding raw materials from the cold end of the kiln. Due to the kiln's certain inclination (usually 3-3.5%), with the help of continuous rotation trajectory, the raw materials are continuously moved towards the hot end 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 That's all for the working principle of the rotary furnace. After understanding the working principle of the equipment, it can be more helpful to use the equipment, improve production efficiency, and increase production efficiency. I hope the above content can be helpful to everyone
