Resource utilization method of vanadium-containing steel slag
A technology for resource utilization and steel slag, which is applied in the field of resource utilization of vanadium-containing steel slag, can solve the problems of low utilization rate of vanadium-containing steel slag, and achieve large-scale resource utilization, green support, and high economic added value. Effect
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Embodiment 1
[0036] First, the molten vanadium-containing steel slag with a temperature of 1350°C that has just come out of the converter is transported to the submerged arc furnace in a steel slag tank, and then directly mixed into the submerged arc furnace; then, the electrode of the submerged arc furnace is lowered to the designated position, and the power is turned on. Smelting and heating are carried out, and 10% (mass percentage, the same below) of coke powder, 15% of silica and 3% of fluorite are added at the same time; the fixed carbon content of the coke powder is 88%, and the particle size is 100-200 mesh; SiO 2 The content is 82%, the particle size is 100-200 mesh; the CaF of fluorite 2 The content is 73%, and the particle size is 100-200 mesh; when the smelting temperature in the submerged arc furnace reaches above 1500 ℃, the smelting is continued for 60 minutes; after the smelting is completed, the slag is discharged first, and the molten slag is drained into the water quench...
Embodiment 2
[0040]First, the molten vanadium-containing steel slag with a temperature of 1320°C that has just come out of the converter is transported to the submerged arc furnace in a steel slag tank, and then directly mixed into the submerged arc furnace; then, the electrode of the submerged arc furnace is sunk to the designated position, and the power is turned on. For smelting and heating, 15% anthracite powder, 20% silica and 5% fluorite are added at the same time; the fixed carbon content of the anthracite powder is 77%, and the particle size is 100-200 mesh; the SiO of the silica is 77%. 2 The content is 82%, the particle size is 100-200 mesh; the CaF of fluorite 2 The content is 73%, and the particle size is 100-200 mesh; when the smelting temperature in the submerged arc furnace reaches above 1500 ℃, the smelting is continued for 40 minutes; after the smelting is completed, the slag is discharged first, and the molten slag is drained into the water quenching pool through the slag ...
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