Tongling Mass of Calcium Co.,Ltd

The Benefits of Special Grade Reactive Lime in Steel Making Industry
In process of high grade specialty steel making, using of special grade reactive lime to replace 2nd and 3rd grade lime will bring the following quantitative benefits for the steel mill:
Reduce the Oxygen lancing time by around 10% (can be treated as improve production rate by around 10%)
Molten Steel yield will be increased by 1%, with each ton to save 10kg. Assuming, RMB3/kg, there will be saving of RMB30/mt steel.
Lime usage will be reduced by 20 to 30%. Assuming 50kg CaO/mt Steel, and RMB300/mt CaO, cost saving for each ton of steel is RMB3/mt steel
Waste Steel usage will increase by 2.5%.
Fluorspar consumption will be reduced by 25-30%. Assuming RMB600/mt fluorite, there will be saving of RMB1.5/mt steel.
Improve greatly the life span of blast furnace.
Improve the de-sulfurisation and phosphorus removal process, increase the effectiveness of blast furnace temperature control from 60% to 75%, making the automation control of steelmaking possible.
High alkalinity of slag (CaO/SiO2=3-4.5 special grade reactive lime to produce slag) will improve the GCR15 bearing steel impurity removal process
Using ZDC reactive lime for super-low carbon stainless steel (300 and 400 series), the quality and efficiency is high. Carbon will not reverse in reaction