External refining method for smelting ferrovanadium

An out-of-furnace refining and ferrovanadium technology is applied in the field of metallurgy, which can solve the problems of electric furnace body erosion, vanadium content control method and straight-tube furnace smelting process without obvious improvement, and high unit power consumption, so as to reduce furnace lining erosion and reduce unit power consumption. The effect of furnace energization time and prolongation of alloy settling time
CN106011601AActive Publication Date: 2016-10-12PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
7 Cites 11 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
Publication Date
2016-10-12

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The invention belongs to the field of metallurgy, and specifically relates to an external refining method for smelting a ferrovanadium alloy. The invention aims at providing an external refining method for smelting ferrovanadium, with regard to problems of a high vanadium content, high power consumption, serious electric furnace body erosion and the like in slag in a last smelting period of an existing ferrovanadium smelting method adopting a multi-period method. The method comprises two-period electric furnace smelting, a primarily-molten alloy after deslagging is cast in an ingot mould filled with a refining material and subjected to a mixing reaction after the smelting is completed, and external refining is carried out. The method is capable of greatly reducing a single-furnace power-on time, reducing furnace lining erosion of an electric smelting furnace, and prolonging an alloy deposition time, thus increase for an alloy yield is benefited, and remarkable social and economic benefits are achieved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the field of metallurgy, and in particular relates to an out-of-furnace refining method for smelting ferrovanadium. Background technique

[0002] Vanadium-containing steel is widely used in machinery manufacturing, aerospace, road and bridge construction and other industries. Due to the addition of vanadium, the comprehensive properties of steel will be significantly improved. As the most widely used vanadium microalloying master alloy in the iron and steel industry at present, the traditional smelting of vanadium ferroalloy is mainly a one-step ferrovanadium smelting process with vanadium oxide as raw material. The main technical idea is to use strong reduction such as aluminum or silicon. The vanadium and vanadium oxides are mixed in a certain proportion and then added to the smelting furnace for thermal reduction reaction. The metal vanadium produced by the reaction rapidly settles in solid solution with the molten metal iro...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More