I. Characteristics of Cement Kiln Coal Powder Burners

　　1. The multi-channel burner is innovatively designed and manufactured by Zhengzhou Zhongwei Environmental Protection Equipment Co., Ltd. The burner head and internal components are made of heat-resistant steel. The flame-retaining hood at the front of the burner, the axial flow large outer cylinder, the coal powder channel, and the central hole are all made of heat-resistant steel, enhancing wear resistance and increasing the service life of the coal powder burner.

　　2. The easily worn parts are treated with a unique wear-resistant technology, exhibiting excellent wear resistance and easy replacement. It has a long service life and strong adaptability to coal powder.

　　3. Online adjustment is flexible and convenient. According to the requirements of different cement clinker calcination conditions, the flame length, fineness, and intensity can be adjusted at any time. The flame shape is more regular and complete, stable and does not sweep the kiln skin, which is conducive to the long-term safe use of the kiln lining.

　　4. Energy saving. The primary air is more reasonably equipped, and the secondary air volume is correspondingly increased. At the same time, the complete combustion of fuel also reduces energy consumption.

　　5. The burner is fixed on a special electric trolley for convenient disassembly and installation.

　　II. Main Performance Advantages of Coal Powder Burner Equipment

　　1. Primary Airflow

　　Primary air has a great influence on the flame shape, fuel combustion, and the suction of secondary air. However, since the primary air temperature is relatively low, excessive use will lower the flame temperature and increase the energy consumption of the primary air blower. Therefore, the use of primary air must be reasonably controlled during design and selection.

　　2. Secondary Air Velocity and Swirl Intensity

　　The axial velocity of the secondary air and the swirl intensity of the swirl air have a significant impact on the combustion of coal powder and the kiln speed. The magnitude of the axial air velocity determines the amount of high-temperature secondary air entrained, thus affecting the stiffness of the flame. Too low an air velocity will result in a poor flame shape, unable to effectively entrain the surrounding hot air, thus affecting the complete combustion of coal powder. The swirl angle and velocity of the swirl air control the recirculation zone inside the flame and the mixing degree of coal powder and air, thus affecting the ignition speed of the fuel and the position of the black flame.

　　3. Flame and Momentum

　　In cement kilns, the burning of clinker mainly relies on the radiant heat of the flame. Therefore, the temperature and shape of the flame are crucial. The temperature distribution of the flame reflects the distribution of energy particles, and a uniform temperature distribution is very beneficial to clinker calcination. At the same time, a good flame shape can reduce air consumption and lower CO residue.

　　When selecting a cement kiln burner, its performance, adaptability, and economy need to be considered comprehensively. At the same time, attention should be paid to the problems during the installation and use of the burner to ensure that it can perform optimally.

　　Zhengzhou Zhongwei Environmental Protection Equipment Co., Ltd. undertakes domestic and international projects: cement kiln coal powder burners, cement kiln natural gas burners, cement kiln diesel burners, cement kiln heavy oil burner equipment, rotary kiln and refractory materials design and construction general contracting projects.