Application of Key Technologies for Lightweight and Long Life Ladle

GAO Zhibin; TAN Xueyang

Abstract：In order to solve the problems of low service life of refractory materials in steel ladles,large daily feeding quantities,large temperature drop of molten steel during the process,and steel infiltration on the slide plate,and to meet the overall goals and needs of efficient,low consumption,high-quality,and green development in steel production,wet automatic spraying technology is adopted,and the sliding water nozzle mechanism C1 and dispersed breathable seat brick technology are upgraded.The service life of the ladle pouring lining is increased to more than 240 heats,achieving multi furnace continuous use of the slide plate,The sliding of the skateboard has been increased to 4 times,and the comprehensive steel consumption per ton of magnesia carbon bricks,casting materials,and spray repair materials for the working lining of the ladle has decreased by 0.70 kg/t compared to the ordinary sleeve casting process.After the service life of the ladle has been improved,the number of new ladles online per month has been reduced by 16.67%,the frequency of ladle turnover has been increased,the average steelmaking temperature of the converter has been reduced by3℃.