METHOD OF BLOWING METAL IN BASIC OXYGEN FURNACE

摘要

the invention u043eu0442u043du043eu0441u0438u0442u0441u00a0 to ferrous metallurgy, more specifically to methods of wide steel in basic oxygen furnace route. lel is the u0441u0433u043eu0439u043au043eu043fu0438 bottom fourme and lowering unit and process indicators by accelerating and stabilizing the u043fu0435u0440u0435u043cu0435u0448u0438u0432u0430u043du0438u00a0 metal.in the method of blowing metal u043au043eu043du0432u0435u0440u0442u0435u0440u0435 comprising an u043au0438u0441u043fu043eu0440 ode on top and a neutral gas in u0444u0443u0440u043cu044b in the converter, an u043eu0441u0443u0449u0435u0441 neutral gas u0442u0432u043bu00a0u044eu0442 with periodic change of intensity of 0.01 - 0.03 to 0.17 and 0.25 mm / ton.min and the period u0446u0438u043au043bu00a0 30 - 40, while the average for the neutral gas u043fu043eu0434u0434u0435u0440u0433u0438u0432u0430u044eu0442 in the range of 0.5 to 1.2 m3 / min for each square meter, the u043au043eu043du0432u0435u0440 tera. the application of the method to increase the output u043fu043eu0437u0432u043eu043bu00a0u0435u0442 fit at 0.5 - 0.6%, reduce the consumption of ferroalloys in the 1.3 - 1.5 kg / d, u0438u0437u0437u0435u0441 years 9 to 11 kg / t, the leaching of metal from converter, increased continuously you u044cu0443u0440u043c ton (). 1, table 2). with s (l