METHOD OF MELTING RAIL STEEL FROM HIGH-PHOSPHORUS IRON IN OXYGEN CONVERTER

摘要

The invention relates to the field of metallurgy, and more specifically to steelmaking in an oxygen converter from high-phosphorus pig iron. The purpose of the invention is to reduce the phosphorus content in steel with a carbon content of at least 0.5% and to prevent emissions when cast iron is cast. The goal is achieved due to the fact that 1.4-4.0 kg / ton of fluorspar steel is added to the slag of the previous smelting left in the converter before draining high-phosphorus pig iron — to liquefy the slag and better assimilate lime, and then a mixture of carbon-containing material and lime at a ratio of 0.05: 0.2 in the amount of 20 ... 50 kg / t of steel. 1 tab.