Abstract
Blast furnace shop No. 1 at the Novolipetsk Metallurgical Combine studied tuyere parameters on an oxygen-enriched blast in changing the consumption of natural gas. Recording devices and resistance thermometers were installed to record continuously the temperature drop of the water. It was determined that there is an inverse proportional relationship between the consumption of natural gas and the temperature drop that makes it possible to develop a system to monitor the thermal state of the hearth by measuring the temperature drop of the coolant water on all tuyeres, and, after isolating external factors affecting the temperature drop, to determine the pattern of change in the thermal state about the periphery of the hearth.
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