Structural characteristics of five-channel gas and oil burner
Five-channel gas and oil burner is widely used in various rotary kilns in building materials, metallurgy, mining, chemical industry, electric power and other industries.
(1) There is a central tube in the burner, and a protective sleeve in the tube to protect the nozzle; the pipeline outwards are the pulverized coal tube, the radial air tube, the burner outer tube, and the outer swirling air duct is combined. The design concept of strengthening the internal structure is designed to prevent the nozzle from being deformed easily, and the air volume and speed can be adjusted.
(2) Cyclone wind and axial flow wind are respectively equipped with air volume adjustment devices, and the opening line is marked on the device. The proportion of the three winds can be adjusted according to the actual situation to achieve the effect of changing the airflow velocity and realize the flame size rule The adjustment of the coal duct can also be controlled by rotating the manual worm wheel to control the size of the front and rear expansion of the coal duct, which is used to adjust the area of the primary air cone nozzle, and realize the increase or decrease of the air volume while maintaining the ratio of the shaft to the swirling air. The angle change adjusts the specific position of the center wind, the new diffusion effect is generated, the phenomenon of accelerated mixing of pulverized coal is fully improved, the flame size and combustion efficiency are changed, and the problem of meeting different working conditions is realized.
Features:
1. The flame shape is regular and complete, without fluctuations, and there will be no phenomenon of sweeping the kiln lining.
2. The good mixing effect of gaseous fuel and primary and secondary air achieves the full combustion effect of the fuel, so it can effectively increase the heat intensity of the kiln and reduce the proportion of primary air, so as to control the output of the kiln and reduce the heat consumption.
3. The bowl-shaped effect formed by the flame-holding hood and the absence of strong vortex at the beginning of the flame avoids temperature peaks, makes the flame temperature distribution uniform and reasonable, and can effectively protect the kiln mouth cylinder and guard plate.
4. The flame thermal strength is moderate, the temperature distribution is reasonable, and there is no excessively high temperature peak.
5. The burner is simple and convenient to operate, and the online adjustment method is flexible, which can adjust the appropriate flame according to different fuel changes in a timely manner;
6. It can effectively reduce the content of CO and NOX in the exhaust gas, which is beneficial to environmental protection.
