Practice of Top Blowing-Bottom Purging with Full Campaign in Converter
By adjusting the distribution of bottom purging position,designing the bottom shape,optimizing steelmaking operations,and dynamically controlling the bath level,the service life of 230 tons converter with combined bottom purging were achieved at 7 525 heats.An average tapping carbon of 0.042％and tapping temperature of 1 644 ℃ in the 230 tons converter.The CO product is controlled at 0.002 27,and the oxygen content in molten steel is reduced from 595 × 10-6 to 546 × 10-6.The oxygen consumption per ton of steel in the entire campaign has decreased by 1.9 m3.The blowing duration has been reduced by 33 seconds.
万方数据
维普
