RESEARCH AND PRACTICE ON IMPROVING AUTOMATIC CASTING RATE OF STEEL LADLE IN PETROLEUM PIPELINE PRODUCTION
In order to improve the self-opening rate of steel ladle in petroleum pipeline,reduce the influence of abnor-mal operations such as oxygen burning drainage and bare pouring on the cleanliness of molten steel,and improve the quality of tube billet.In this paper,the influences of ladle condition,hot repair operation,use times and shape of Efurnace outlet,Efurnace outlet operation,smelting material and physical and chemical properties of drainage sand on the self-opening rate of ladle were deeply analyzed.In addition,from the aspects of adjusting ladle outlet position,optimizing the shape of out-let,improving the corrosion resistance of brick,standardizing hot repair operation and optimizing the physical and chemical indexes of drainage sand,etc.,The measures to improve the automatic casting rate of ladle are put forward.After taking the above measures,the automatic pouring rate of ladle was increased from 90.4%to more than 99%.
Oil pipe steelAutomatic casting rate of steel ladleDrainage sandOutlet positionShape of steel outlet
万方数据
维普
