RESEARCH ON THE BURDEN STRUCTURE OF SMELTING THE PANZHIHUA'S VANADIUM-BEARING TITANOMAGNETITE

There exists a certain kind of difficulty to smelt the vanadium-bearing titanomagnetite in a conventional blast furnace. The overwhelming important condition to smelt such kind of the magnetite is to choose reasonable burden structure so as to control the reduction of TiO₂. The result obtained from the research works and the praetices e.g. the burden reduction in the lump zone, the smelting at high temperature, the forming of the first slag as well as the reaction of the slag with iron showed that the smelting properties of the sinter can be improved by addition of SiO₂ and adding some fluor-spar, ferriferous manganese ore or some irreducible ores.