This article analyzes the reasons for the low service life of oxygen lance copper heads in Liuzhou Iron and Steel's 120 ton converter from the aspects of production process management,material selection of oxygen lance copper heads,water cooling system,and blowing process.By adopting forged copper heads,oxygen lance quick change transformation,optimizing nozzle parameters,combining different blowing models matched with raw materials,and standardizing blowing process operations,the service life of oxygen lance copper heads has been increased to 479 furnaces.At the same time,economic indicators have been improved,oxygen consumption has been reduced by 1.09 m3/(t·min),dephosphorization rate,lime consumption,and flux consumption have been stabilized,smelting time has been shortened by about 80 seconds,and final slag TFe has decreased by 1.2%.
关键词
转炉/氧枪/铜头/寿命/快换/锻造铜头
Key words
converter/oxygen lance/copper head/life/quick change/forged copper head
万方数据