DOI: 10.18503/1995-2732-2025-23-1-178-189
Abstract
Important parameter of the operation of thermal power system is reliability of the ignition device of the combustion equipment. According to GOST R 52229-2004, the main type of fuel for ignition burners is natural or liquefied gas. However, for metallurgical production, the use of coke-oven gas under conditions of low connection pressure is relevant. The present paper has been aimed to the process of adapting a serial ignition device operating on natural gas and satisfying GOST R 52229-2004 to operation on coke-oven gas. High volumetric hydrogen content in the coke-oven gas leads to significant differences in the values of the dynamic flow pressure and the calorific effect of the combustible mixture compared to natural gas; this fact becomes critical for serial ignition devices under conditions of low connection pressure. New design of an ignition device with two equivalent gas tubes has been proposed. Digital twins of ignition burners with one and two gas tubes have been studied numerically; the similarity of the combustion parameters and of the general structure of torches on the central axis when burning coke gas at 15 kPa of a connection pressure and at 120 kW of a nominal thermal power of the device has been shown. However, the use of the unit with two gas tubes allows placing a high-voltage spark plug in the burner barrel without increasing the external diameter of it; the presence of plug increases the overall reliability of the device and the metallurgical furnace as a whole. The proposed unit also has an advantage in thermal stress of the steel elements of the burner barrel head, which extends the service life of the device.
Keywords
ignition device, coke-oven gas, numerical simulation, metallurgy, combustion
For citation
Teleshev M.I., Saushin I.I., Goltsman A.E., Khusnutdinova E.M., Khamidullina G.R., Fakhreeva D.R. Adaptability and Reliability of Ignition Device Operation on Coke-Oven Gas for Metallurgical Production. Vestnik Magnitogorskogo Gosudarstvennogo Tekhnicheskogo Universiteta im. G.I. Nosova [Vestnik of Nosov Magnitogorsk State Technical University]. 2025, vol. 23, no. 1, pp. 178-189. https://doi.org/10.18503/1995-2732-2025-23-1-178-189
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