Flame color
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The medium is natural gas, with air used as an auxiliary gas; it is heated to around 660 degrees in a preheating furnace. What are the possible colors of the flame? Because I took a look, and the settings for each furnace are different; I hope the more experienced ones can explain to me the colors corresponding to low oxygen levels, high oxygen levels, and the optimal ratio. Thank you!
Oxygen deficiency causes the flame to turn red； Oxygen-enriched atmosphere, flame turns yellow ； If it’s just right, it will appear blue
There is little industrial exposure to this aspect, but I know that gas stoves with blue flames are better. After reading reply #2, it’s true that blue flames are superior :)