Abstract
In the article, one has presented a mathematical description and an algorithm for prediction of tuyere areas’ parameters and control over the distribution of blast parameters around a blast furnace based on the application of patterns of heat transfer between the hot blast and cooling water for tuyere elements. The algorithm has been designed to align the thermal condition of the tuyere areas of a blast furnace along the circumference. It entails the calculation of the following parameters for each tuyere: output and composition of the hearth gas, heat removal from a tuyere, hot blast blowout velocity from a tuyere, kinetic energy of the hot blast, total mechanical energy of the blast flow, length of circulation and oxidation zones, and theoretical combustion temperature. One calculates the mean values of parameters, the area of oxidation zones, and the relative area of tuyere areas. It has been shown that, in case of the non-uniform distribution of the hot blast to tuyeres, to stabilize the thermal state of tuyere areas and to align the gas distribution along the furnace circumference, one is required to adjust the natural gas flow rate to each tuyere to maintain the theoretical combustion temperature at a target level.
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Gurin, I.A., Spirin, N.A., Lavrov, V.V. (2022). Predictive Algorithm for Tuyere Areas’ Parameters and Control Over the Distribution of Blast Parameters Around a Blast Furnace. In: Radionov, A.A., Gasiyarov, V.R. (eds) Proceedings of the 7th International Conference on Industrial Engineering (ICIE 2021). ICIE 2021. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-030-85233-7_89
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