PROCESS FOR ROASTING SULFUR-BEARING IRON ORE PELLETS IN CONVEYER MACHINES

摘要

the invention u043eu0442u043du043eu0441u0438u0442u0441u00a0.u043a preparation of iron ore u0441u044bu0440u044cu00a0 in ferrous metallurgy, namely the production of pellets. purpose u0438u0437u043eu0431u0440u0435u0442u0435u043du0438u00a0 u00a0u0432u043bu00a0u0435u0442u0441u00a0 increasing calcite pellets without u0441u043du0438u0436u0435u043du0438u00a0, productivity pipelined machines.the essence of the u0438u0437u043eu0431u0440u0435u0442u0435u043du0438u00a0 u0437u0430u043au043bu044eu0447u0430u0435u0442u0441u00a0 in extracts of the horizon u0441u043bu043eu00a0 pellets in u0443u0441u043bu043eu0432u0438u00a0u0445 active u0434u0435u0441u0443u043bu044cu0444u0443 radios depending on the u0441u043eu0434u0435u0440u0436u0430u043du0438u00a0 u0438u0441u0445u043e eve dr. noah sulphur in u0448u0438u0445u0442u0435. method of firing u0441u0435u0440u043eu0441u043eu0434u0435u0440u0436u0430u0449u0438u0445 iron ore pellets on the conveyor machines includes drying, heating and baking, respectively u0443u043fu0440u043eu0447u043du00a0u044eu0449u0438u0439 at temperatures of 200 to 400. 70 - 1050 and 1230 and 1320.after heating the pellets are in current u0442u0435u043fu043bu043eu043du043eu0441u0438u0442u0435u043bu00a0 with initial temperature of 1150 - 1200 & deg; c in the original contents of sulphur in u043eu043au0430u0442u044bu0448u0430u0445 0.10 - 0.40% for 0,54,0 mines. with the increase of sulphur u0441u043eu0434u0435u0440u0436u0430u043du0438u00a0 u043eu043au0430u0442u044bu0448u0430u0445 with 0.40% for every 0.3% of extracts increase with 1.0 min at 1.0 - 1.5 min, and duration of heating, respectively, to reduce the use of u0438u0437u043eu0431u0440u0435u0442u0435u043du0438u00a0 provides pipelined machines to improve productivity 112 to 120 t / h and decreasing sulphur u0441u043eu0434u0435u0440u0436u0430u043du0438u00a0 singed u043eu043au0430u0442u044bu0448u0430u0445 1.5 - 2.0 times. fe