BOF slag foaming slag foaming inhibitor on the inhibitory effect of splashing good, can effectively prevent and control the degree of splashing. Blowing process can reduce the material consumption of the metal, to create favorable conditions to reduce costs. Use of the product can also improve the working environment for the safe operation of blast furnace provided favorable conditions. In the smelting process of adding the product of the converter without any adverse side effects of blowing and will not cause pollution and dirty steel, but also effectively prevent the steel is steel slag into the ladle from the furnace mouth to prevent the molten steel slag.