Influence of Alkalinity on the Properties of Blast Furnace Slag Conditioning Agent

According to the adjustment of molten blast furnace slag for preparation of mineral wool,the influence of iron tailings,basicity contents on the viscosity and melting temperature of the slag system has been investigated.Based on the basic composition of slag cotton,a certain amount of modifier was added into the molten blast furnace slag for adjusting chemical composition and then heated up and mixed. The result shows that when the blast furnace slag is adjusted with chemical reagent,the viscosity of the slag can transfer to the short-slag characteristics and the melting temperature increases with the increasing of basicity,which do not benefit for fluidity increasing of the slag.Basicity has not significant influence on the surface tension of blast furnace slag.The right basicity for preparation of slag cotton is 1.0.