Converter steelmaking is currently one of the most widely used steelmaking methods in the world. It has become the mainstream steelmaking method due to its high efficiency, short smelting cycle, low steel production cost, and suitability for the smelting of multiple steel grades. According to statistics, converter steelmaking accounts for more than 70% of the world’s total crude steel output. my country’s converter steelmaking accounts for more than 90% of crude steel output, as shown in Figure 1. According to statistics from the China Iron and Steel Association, as of 2017, my country had 547 steelmaking converters with a total production capacity of 688.91 million tons. In terms of quantity, there are 14 converters with a capacity of 300t and above, and the number of converters with a capacity of 100t and above has exceeded 60%. As the country continues to increase efforts to eliminate backward production capacity, my country’s converters will further develop in the direction of large-scale converters.
