Analysis of Leakage Problem of Water Cooled Furnace Cover of Electric Arc Furnace
In modern industrial steelmaking,electric arc furnace steelmaking occupies a larger market position.The failure rate of electric fur-nace equipment will directly affect the production efficiency of steelmaking enterprises.How to reduce the failure rate and improve the use effi-ciency of equipment has always been a big problem plaguing smelters and equipment manufacturers.Leakage as a main failure form of electric arc furnace water cooling equipment,the causes are many and very complex,the cooling wall in the furnace often appear burning,burning leakage,refractory material falling off and other phenomena,resulting in the surface temperature of the cooling steel pipe is too high,deforma-tion,thermal fatigue.Because the furnace cover is in this working condition for a long time and repeatedly,when it reaches a certain limit,it will crack under the action of a little external force.The smoke outlet is the most cracked part of the furnace cover,where the temperature is high and the cold and hot change is frequent.It is not only the part of the furnace cover stress concentration and prominent,but also the place where the furnace cover cracks appear most.In view of the leakage problem of the furnace cover in the actual production and operation of the e-lectric furnace,combined with the production process,material characteristics,heat treatment process and the environment,working condition and practice of smelting production,it conducts chemical composition detection,tensile test and metallographic analysis of the steel pipe sam-ple in the cracking part,and makes some simple judgments based on the results of various tests.Hope to provide some reference for relevant technical personnel.
electric arc furnaceleakagefailure analysisuse for reference
万方数据
维普
