Abstract:
In view of the shortage of hot metal and the fluctuation of hot metal composition in Xinjiang Bayi Iron and Steel Co., Ltd., we conducted a study on the influence of process parameters, such as the composition, weight and temperature of hot metal, the tapping temperature and retaining slag, on the amount of scrap added, based on the data collection of field steelmaking, the material balance and heat balance of converter steelmaking and field testing. The converter scrap ratio increased from 16.4% to 21.3%, and the dephosphorization rate from 79.3% to 93.3% while the consumption of lime and dolomite decreased by 3.3 kg and 6.7 kg per ton of steel, respectively by retaining slag, appropriately increasing the temperature of hot metal, reducing the consumption of excipients and the tapping temperature of the converter.