Lime: With smelting technology and continuously improve the variety and quality of steel required for lime products in the molten steel melting rate also have a "fast" requirements. The aim is to quickly increase the speed of the rotary kiln into the slag lime wholesale, high alkalinity slag formed earlier. In this case, it appeared lime. Lime: lime in steelmaking applications. It is mixed with molten steel, having a rapid slagging (slag) removal rate and improve the S (sulfur) removal of P (phosphorus) efficiency. Active lime used in the process of steelmaking also has: shorten the refining time, improve the furnace lime kiln, reducing raw material consumption of high-quality active lime kiln, increase production, quality, reduce costs, stable operation, it is smelting beneficial advantages of automation.