Detailed introduction: Light-burned magnesium balls are made of light-burned magnesium powder and water, stirred and processed. Mainly used in converter steelmaking in steel mills to adjust the alkalinity of steel slag and reduce the erosion of steel slag lining. Many iron and steel enterprises in my country are actively developing their own slag splashing protection technology. Among them, Taiyuan Iron and Steel, Chenggang, Chongqing Iron and Steel, Maanshan Iron and Steel have adopted the slag splashing protection technology. The 700 furnaces and 1100 furnaces have been increased to 12000 furnaces, 1500 furnaces, 8500 furnaces and 10200 furnaces, and huge economic benefits have been achieved. One of the key technologies of splashing pool protection furnace is to reasonably control the MgO content in Shanghai slag. The right amount of light-burned magnesium balls is the most effective way to achieve this.