METHOD OF STEEL MELTING IN CONVERTER WITH COMBINED BLOWING

摘要

the invention u043eu0442u043du043eu0441u0438u0442u0441u00a0 to metallurgy. the purpose of u0438u0437u043eu0431u0440u0435u0442u0435u043du0438u00a0 - improving quality through u0441u043du0438u0436u0435u043du0438u00a0 u0441u043eu0434u0435u0440u0436u0430u043du0438u00a0 phosphorus in finished steel and increase output of liquid steel. in the method of smelting steel u043eu0441u0443u0449u0435u0441u0442u0432u043bu00a0u044eu0442 u0437u0430u0432u0430u043bu043au0443 u0437u0430u043bu0438u0432u043au0443 scrap iron, the purging process of oxidative gas and neutral gas from the bottom, u043fu0440u0438u0441u0430u0434u043au0443 u0448u043bu0430u043au043eu043eu0431u0440u0430u0437u0443u044eu0449u0438u0445 in same u043bu0435u0437u043eu0441u043eu0434u0435u0440u0436u0430u0449u0438u0445 materials.with 10 - 15% of the time to u043eu043au043eu043du0447u0430u043du0438u00a0 blowing in the converter u0432u0432u043eu0434u00a0u0442 u043eu0444u043bu044eu0441u043eu0432u0430u043du043du044bu0435 pellets of 0.3 to 2 mas. u043cu0435u0442u0430u043bu043bu043eu0448u0438u0445u0442u044b, and after u043fu0440u0435u043au0440u0430u0449u0435u043du0438u00a0 of u043eu043au0438u0441u043bu0438u0442u0435u043bu044cu043du043eu0433u043e the gas continues to u043fu0440u043eu0434u0443u0432u0430u0442u044c bath neutral gas from below 2 to 3 minutes. 1, table 2).