Blast furnace iron-smelting method
A technology of blast furnace ironmaking and blast furnace smelting, which is applied in the field of blast furnace smelting, can solve problems such as difficulty in blast furnace smelting and reduction of technical and economic indicators, and achieve the effect of increasing vanadium content in molten iron and reducing production costs
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[0011] The following describes but does not limit the present invention through the description of specific embodiments of the ironmaking method of the present invention.
[0012] The blast furnace smelting of Panzhihua Iron and Steel Group Corporation adopts the following process:
[0013] A. Preparation of sinter: the sinter raw material contains the following components by weight ratio, 50-55% of vanadium-titanium magnetite concentrate, 25-30% of ordinary iron ore, 20% of fuel and flux;
[0014] B. Pellet making: 30-40% of ordinary iron ore and 60-70% of vanadium-titanium magnetite concentrate are mixed to produce pellets; the main purpose of using ordinary ore in the preparation of pellets is to improve the quality of pellets grade and quality of pellets.
[0015] C. Blast furnace smelting: the blast furnace charge contains the following components by weight: 67% of sintered ore prepared in step A, 28% of pellet ore, and 5% of ordinary lump ore.
[0016] The blast furnac...
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