A method for producing vanadium-containing pig iron by utilizing vanadium-containing steel slag
A steel slag and pig iron technology, applied in the field of metallurgy, can solve the problems that vanadium-containing steel slag cannot be effectively used, and achieve the effects of reducing difficulty, improving economic benefits, and avoiding environmental pollution
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Embodiment 1
[0034] A method for producing vanadium-containing pig iron by utilizing vanadium-containing steel slag, comprising the following steps:
[0035] (1) Raw material processing: pulverize vanadium-containing steel slag into 50-mesh powder to obtain vanadium-containing steel slag powder; pulverize iron-based materials into a particle size of 50-mesh powder to obtain iron-based material powder; mix coke, river sand and fluorite Grinding into 90-mesh powder to obtain coke powder, river sand powder and fluorite powder;
[0036] (2) Mixing and granulation: Evenly mix vanadium-containing steel slag powder, iron-based material powder, coke powder, river sand powder and fluorite powder at a mass ratio of 25:5:5:3:3, and then use a pelletizer to The mixture is granulated to obtain pellets with a diameter of about 4 cm;
[0037] (3) Primary smelting: the pellets are mixed with coke powder (with a particle size of about 100 mesh) accounting for 6% of the mass of the pellets, and then the mi...
Embodiment 2
[0041] A method for producing vanadium-containing pig iron by utilizing vanadium-containing steel slag, comprising the following steps:
[0042] (1) Raw material treatment: crush vanadium-containing steel slag into 60-mesh powder to obtain vanadium-containing steel slag powder; crush iron-based materials into powder with a particle size of 40 mesh to obtain iron-based material powder; mix coke, river sand and fluorite Pulverize into 100 mesh powder to get lime powder, bentonite powder and river sand powder;
[0043] (2) Mixing and granulation: Evenly mix vanadium-containing steel slag powder, iron-based material powder, coke powder, river sand powder and fluorite powder at a mass ratio of 10:1:1:2:2, and then use a pelletizer to The mixture is granulated to obtain pellets with a diameter of about 5 cm;
[0044] (3) Primary smelting: the pellets are mixed with graphite powder (with a particle size of about 80 mesh) accounting for 5% of the mass of the pellets, and then the mix...
Embodiment 3
[0048] A method for producing vanadium-containing pig iron by utilizing vanadium-containing steel slag, comprising the following steps:
[0049] (1) Raw material treatment: crush vanadium-containing steel slag into 40-mesh powder to obtain vanadium-containing steel slag powder, crush iron-based materials into 60-mesh powder to obtain iron-based material powder, and pulverize coke, river sand and fluorite into 80-mesh powder to obtain lime powder, bentonite powder and river sand powder;
[0050] (2) Mixing and granulation: uniformly mix vanadium-containing steel slag powder, iron-based material powder, coke powder, river sand powder and fluorite powder at a mass ratio of 30:10:10:3:5, and then use a pelletizer to The mixture is granulated to obtain pellets with a diameter of about 5 cm;
[0051] (3) Primary smelting: The pellets are mixed with coke powder (with a particle size of about 90 mesh) accounting for 8% of the mass of the pellets, and then the mixture is placed in a m...
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