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Method for smelting ferrovanadium through iron particles and steel scraps

A technology of iron particles and steel shavings, which is applied in the field of metallurgy, can solve the problems of high production cost pressure of ferrovanadium, high price of cold-rolled steel shavings, and poor quality of ferrovanadium, so as to improve the quality of alloys, avoid processing costs, and improve grades. stable and controlled effect

Inactive Publication Date: 2015-09-02
PANGANG GRP PANZHIHUA STEEL & VANADIUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method uses high-purity steel shavings as raw materials. The steel shavings have high iron content and low impurity content, and the quality of the produced ferrovanadium is stable and controlled. However, the price of cold-rolled steel shavings is relatively high, and the pressure on the production cost of ferrovanadium is relatively high.
However, if the general iron pellets are used, the cost is lower but the impurities are higher, and the quality of the ferrovanadium obtained after smelting is not good.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) 64.0% vanadium trioxide 2800kg, 98% vanadium pentoxide 400kg, metallurgical common grade aluminum particles 1400kg, steel chips 250kg, iron particles 150kg, iron particles meet slag inclusion rate ≤ 4%, particle size 3~ 5mm, add it to the mixing tank and rotate the mixer for 8 minutes.

[0031] (2) Ignition and smelting. After being left to stand and cooling naturally, the furnace was dismantled to obtain 2420kg of FeV80 alloy with intact crystals, no slag inclusions and easily broken.

[0032] (3) Sampling and testing FeV80 alloy composition are: V=80.2%, Al=1.5%, Si=0.6%, C=0.14%, P=0.02%, S=0.03%, Mn=0.5%. The yield of smelting vanadium is 96.46%.

Embodiment 2

[0034] (1) 2800kg of 64.2% vanadium trioxide, 400kg of 98% vanadium pentoxide, 1400kg of ordinary grade aluminum particles for metallurgy, 250kg of steel chips, and 150kg of iron particles. The iron particles meet the slag inclusion rate ≤ 4%, and the particle size is 3~ 5mm, add it to the mixing tank and rotate the mixer for 8 minutes.

[0035] (2) Ignition and smelting. After standing and cooling naturally, the furnace was dismantled to obtain 2435kg of FeV80 alloy with intact crystals, no slag inclusions, and fragility.

[0036] (3) Sampling and testing FeV80 alloy composition are: V=79.8%, Al=1.3%, Si=0.7%, C=0.13%, P=0.02%, S=0.04%, Mn=0.16%. The yield of smelting vanadium is 96.34%.

Embodiment 3

[0038] (1) 64% vanadium trioxide 2100kg, 98% vanadium pentoxide 300kg, metallurgical common grade aluminum grains 1200kg, steel scraps 200kg, iron grains 100kg, iron grains meet slag inclusion rate ≤ 4%, particle size 3~ 5mm, add it to the mixing tank and rotate the mixer for 8 minutes.

[0039] (2) Ignition and smelting. After standing and cooling naturally, the furnace was dismantled to obtain 1815kg FeV80 alloy with intact crystals, no slag inclusions, and fragility.

[0040] (3) Sampling and testing FeV80 alloy composition are: V=80.4%, Al=0.6%, Si=0.90%, C=0.14%, P=0.03%, S=0.03%, Mn=0.13%. The yield of smelting vanadium is 96.66%.

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Abstract

The invention relates to a method for smelting ferrovanadium through iron particles and steel scraps, and belongs to the technical field of metallurgy. The method for smelting ferrovanadium through iron particles and steel scraps is adopted. The method includes the following steps of a, preparing a raw material and b, smelting. According to the step of preparing the raw material, vanadium oxide, aluminum particles, steel scraps and iron particles are mixed. According to the step of smelting, ignition smelting and standing are conducted, a furnace is removed after natural cooling is completed, and ferrovanadium is obtained. According to the method, the constitution of the ferrovanadium raw material is innovatively optimized, the consumption of steel scraps is reduced obviously, hence, the production cost of ferrovanadium is lowered, the production efficiency of enterprises can be improved, the production cost can be lowered, the alloy quality is improved, the enterprise competitiveness is enhanced, and a broad market prospect is achieved.

Description

Technical field [0001] The invention relates to a method for smelting ferrovanadium by using iron particles and steel scraps, and belongs to the technical field of metallurgy. Background technique [0002] Ferro-vanadium alloy is a master alloy widely used in the steel industry. As an alloying element in steel, vanadium can improve the strength, toughness, plasticity and wear resistance of steel. As the market demand for high value-added steel grades continues to expand, the demand for ferro-vanadium alloys is also increasing year by year. [0003] Iron material is a necessary charge for ferrovanadium production, and it is also an important factor affecting the composition of ferro-vanadium alloy and production cost. Patent 103757171 A discloses a smelting method for high-vanadium iron, which includes adding cold vanadium-containing rich slag and lime to the bottom of an electric arc furnace, and adding a first-stage mixture consisting of vanadium pentoxide, aluminum particles, li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C33/04C22C35/00
Inventor 白乐邓孝伯王永钢王小江韩春辉周芳游本银
Owner PANGANG GRP PANZHIHUA STEEL & VANADIUM
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