Blast furnace burden and method for improving comprehensive feeding grade of vanadium titano-magnetite blast furnace
A technology of vanadium-titanium magnetite and furnace grade, which is applied in the field of blast furnace charge, can solve the problems of high pig iron cost, high profit, and low output, and achieve the effects of increasing blast furnace output, improving furnace grade, and reducing costs
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example 1
[0037] In this embodiment, the composition (mass percentage) of the blast furnace charge for improving the comprehensive grade of vanadium-titanium-magnetite blast furnace into the blast furnace is:
[0038] Vanadium-titanium sinter: 82%; vanadium-titanium pellets: 12.5%; acid lump ore: 2.5%; high-grade lump ore: 3%.
[0039] Put the above-mentioned blast furnace charge into the blast furnace for smelting, wherein, the composition of the blast furnace slag and the grade of the blast furnace entering the furnace are shown in Table 1.
example 2
[0041] In this embodiment, the composition (mass percentage) of the blast furnace charge for improving the comprehensive grade of vanadium-titanium-magnetite blast furnace into the blast furnace is:
[0042] Vanadium-titanium sinter: 77.5%; vanadium-titanium pellets: 15.5%; acid lump ore: 1%; high-grade lump ore: 6%.
[0043] Put the above-mentioned blast furnace charge into the blast furnace for smelting, wherein, the composition of the blast furnace slag and the grade of the blast furnace entering the furnace are shown in Table 1.
example 3
[0045] In this embodiment, the composition (mass percentage) of the blast furnace charge for improving the comprehensive grade of vanadium-titanium-magnetite blast furnace into the blast furnace is:
[0046] Vanadium-titanium sinter: 76%; vanadium-titanium pellets: 14%; acid lump ore: 0%; high-grade lump ore: 10%.
[0047] Put the above-mentioned blast furnace charge into the blast furnace for smelting, wherein, the composition of the blast furnace slag and the grade of the blast furnace entering the furnace are shown in Table 1.
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