The content of carbon and silicon in hot metal is high, which improves the ability to reflect sulfur and is beneficial to desulfurization; ■ The oxygen content of molten iron is low, the distribution ratio of iron and sulfur in slag is improved, and the desulfurization efficiency is high; ■ Hot metal desulfurization has good dynamic conditions, high utilization rate of desulfurizer and fast desulfurization speed; ■ The cost of hot metal desulfurization is low, and the desulfurization of blast furnace, converter and external refining is several times lower than that of hot metal desulfurization; ■ Desulfurization of hot metal is beneficial to improve the production capacity of ironmaking and steelmaking, save energy consumption in working procedures and reduce costs. Wuhan Jiate Heavy Equipment Co., Ltd. developed a new type of column lifting rotary hot metal desulfurization system, which has the characteristics of small floor space, low occupied space, high equipment utilization rate and low investment, and is the most ideal desulfurization equipment at present.