The lance for blowing the melt in the basic oxygen furnace

摘要

1. tuyere u0434u043bu00a0 melt blowing in oxygen u043au043eu043du0432u0435u0440u0442u0435u0440u0435, u0441u043eu0434u0435u0440u0436u0430u0449u0430u00a0 u043au043eu043du0446u0435u043du0442u0440u0438u0447u0435u0441u043au0438 located pipes forming the supply routes u0434u043bu00a0 u043eu043au0438u0441u043bu0438u0442u0435u043bu00a0, supply and drainage u043eu0445u043bu0430u0434u0438u0442u0435u043bu00a0 and u043cu043du043eu0433u043eu0441u043eu043fu043bu043eu0432u0443u044e head with conic u0441u043eu043fu043bu0430u043cu0438 u043bu0430u0432u0430u043bu00a0 in u043au043eu043du0444u0443u0437u043eu0440, minimum cross section and diffuser with u043fu0440u00a0u043cu043eu043bu0438u043du0435u0439u043du044bu043cu0438 forming, u043eu0442u043bu0438u0447u0430u044eu0449u0430u00a0u0441u00a0 those m, the u0440u0430u0441u043au0440u044bu0442u0438u00a0 diffusers nozzles defined in u0441u043eu043eu0442u043du043eu0448u0435u043du0438;where min = 20;;ku044d - empirical coefficient equal to 0850,95;;k is the heat capacity ratio (u0434u043bu00a0 expiring gas oxygen (k = 1.4).;u043f0 = u04400 / r - disposable pressure drop at the u0441u043eu043fu043bu0430u0445;;u04400 total pressure u0442u043eu0440u043cu043eu0436u0435u043du0438u00a0 oxygen before u0441u043eu043fu043bu0430u043cu0438, pa;;rate of oxygen u0432u043eu0441u0441u0442u0430u043du043eu0432u043bu0435u043du0438u00a0 u0434u0430u0432u043bu0435u043du0438u00a0 snot.;r - static pressure in the environment (in the abdomen at the level of the outlet nozzle of a converter), pa.;2. tuyere u0434u043bu00a0 melt blowing in oxygen u043au043eu043du0432u0435u0440u0442u0435u0440u0435 on 1, u043eu0442u043bu0438u0447u0430u044eu0449u0430u00a0u0441u00a0, between u043au043eu043du0444u0443u0437u043eu0440u043eu043c and because of the u0441u043eu043fu043bu0430u0445 u043bu0430u0432u0430u043bu00a0 implemented cylindrical channels, dr. lina identified from u0441u043eu043eu0442u043du043eu0448u0435u043du0438;where devs lu - length of cylindrical channels, m;;dmin - diameter minimum u0441u0435u0447u0435u043du0438u00a0 nozzles u043bu0430u0432u0430u043bu00a0, m.;3. tuyere u0434u043bu00a0 melt blowing in oxygen or u043fu043f.1 u043au043eu043du0432u0435u0440u0442u0435u0440u0435 on 1, 2, u043eu0442u043bu0438u0447u0430u044eu0449u0430u00a0u0441u00a0 diffusers, nozzles are additional cylindrical weekend stations which is determined from u0441u043eu043eu0442u043du043eu0448u0435u043du0438;where is the length of the additional output of lu0432 cylindrical diffusers, nozzles,.