Self-stirring Process for Ferro-Vanadium Smelting

A vanadium-iron alloy and self-stirring technology, which is applied in the field of iron and steel smelting, can solve the problems of lower comprehensive yield and smelting efficiency, poor stirring and injection of poor slag, and prolonged smelting time, so as to optimize slag characteristics and reduce vanadium content, and the effect of improving the life of the electric furnace
CN108913894BActive Publication Date: 2020-02-04PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
Publication Date
2020-02-04
Patent Text Reader

Abstract

The invention discloses a self-stirring process for smelting of ferrovanadium and belongs to the field of iron and steel smelting technology. The provided self-stirring process is simple to operate, ensures a long service life of a furnace lining and is high in alloy yield. The process is characterized in that a spherical self-stirring agent is added into a molten pool after an aluminothermic reduction spontaneous reaction, sufficient stirring of the molten pool is achieved by such means as heat release of the self-stirring agent, characteristic improvement of molten slag and gas generation topromote deep reduction of a material, molten slag gold is poured into a casting sand mold after finish of primary self-stirring for mixed melting of the slag gold, and secondary self-stirring is realized. The content of vanadium in the slag can be remarkably reduced through the self-stirring operation during smelting of ferrovanadium, so that the service life of an electric furnace is greatly prolonged.
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Description

technical field

[0001] The invention belongs to the technical field of iron and steel smelting, and in particular relates to a self-stirring process for smelting vanadium-iron alloys. Background technique

[0002] Ferrovanadium is the most widely used vanadium microalloyed master alloy in the iron and steel industry. Vanadium-containing steel is widely used in machinery manufacturing, aerospace, construction roads and bridges and other industries, because the mechanical properties of steel will be significantly improved due to the addition of vanadium. The production principle of industrialized vanadium-iron alloy is mainly to use reducing agent to reduce vanadium-containing oxides and other vanadium-containing raw materials, and to form a solid solution with iron melt in a high-temperature molten state.

[0003] At present, most enterprises in the world adopt the oxide of vanadium (V 2 o 5 / V 2 o 3 ) as the raw material, add an appropriate amount of reducing agent (Al / ...

Claims

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