Analysis of the Influence of Oxygen Enrichment in the Blast on Temperature Field and NO_x Generation near the Burner in Reheating Furnace

In order to study the effect of oxygen-enriched combustion technology on the temperature field and NO_X emission in the continuous heating furnace, this paper studies the oxygen-enriched combustion of a pushing steel continuous heating furnace in a domestic company. This study utilizes numerical simulation method, establishes the mathematical models of flow, combustion and NO_X generation combustion process in the furnace and analyzes the heat transfer process and NO_X generation in the furnace under different air oxygen content and different wind ratio. The research results show that with the increase of oxygen content in the air, the combustion temperature in the furnace rises significantly, and the emission concentration of NO_X increases. Furthermore, the NO_X emission concentration is related to the proportion of primary and secondary air.