Active lime application, smelting slag accelerated speed, shorten the refining time, reduce the consumption of lime reduces the impurities into, greatly improving the quality of steel supply superfine lime powder, to bring a significant overall Benefit ultrafine lime how much money one ton, in the steel industry have formed a consensus. Active lime not only affects the steel smelting process, but also directly affect the final quality of the molten steel. Lime production process: lime production process is the original limestone and fuel (wood) hierarchical placement, fire firing one week that was. The use of modern mechanization and semi-mechanized shaft kiln and rotary kiln, fluidized bed furnace and other equipment for production. Calcination time is correspondingly shortened.