Key points for the development of industrial coke oven gas burners
Industrial coke oven gas burner is a specialized equipment for heating facilities (such as boilers, industrial furnaces, etc.) that use hot gas as the heat source to achieve the combustion process of hot gas. The main function is to introduce hot air and combustion air into the heating facility for combustion or in the burner under certain mixing conditions in a certain proportion to meet the requirements of flame direction, shape, stiffness, and propagation. During the heating process. The industrial coke oven gas burner is designed for the blast furnace exhaust gas generated by steel enterprises. The industrial coke oven gas burner utilizes blast furnace exhaust gas of any pressure and heat value to achieve automatic ignition and other functions.
Key points for the development of industrial coke oven gas burners:
Industrial coke oven gas burners use blast furnace gas instead of coke oven gas and are equipped with safety burners. By analyzing the combustion characteristic data of blast furnace gas, the following conclusions are drawn: the disadvantage of blast furnace gas is poor combustion stability and easy flameout. Therefore, in the development process of industrial coke oven gas burners, it is crucial to ensure the safe and effective utilization of blast furnace gas.
CO is the main combustible component in blast furnace gas, accounting for over 90% of the combustible component. It is a colorless, odorless, and highly hazardous toxic gas. Due to the higher ignition temperature of blast furnace gas compared to coke oven gas, the ignition concentration range is narrow. Once the pressure fluctuates, the industrial coke oven gas burner will catch fire, causing furnace flameout and gas leakage, leading to major safety accidents. Therefore, preventing stalling is the key to this technology. By analyzing the combustion characteristics of blast furnace gas, the necessary conditions for blast furnace gas combustion to prevent burner stalling are as follows:
(1) The relative concentration of air and gas must be appropriate and within the specified range.
(2) Control the average gas flow rate at the outlet of the industrial coke oven gas burner within the combustible range.
(3) Preheat the gas to make it close to the ignition temperature, making it easy to catch fire.
(4) Install a duty flashlight (dimmable) as the ignition source at the outlet of the industrial coke oven gas burner.