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High-chrome vanadium-titanium magnetite blast furnace smelting charging material and blast furnace smelting method

A technology for vanadium titanomagnetite and blast furnace smelting, which is applied to high-chromium vanadium titanomagnetite blast furnace smelting charge, blast furnace smelting charge, and high-chromium vanadium titanomagnetite blast furnace smelting field, and achieves advantages of strengthening and air permeability. The effect of improving and enhancing metallurgical properties

Inactive Publication Date: 2016-07-27
PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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  • Abstract
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Problems solved by technology

[0003] At present, there are few studies on the blast furnace smelting of high-chromium vanadium-titanium magnetite. In order to obtain a better smelting effect, the inventor has conducted in-depth research on this

Method used

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  • High-chrome vanadium-titanium magnetite blast furnace smelting charging material and blast furnace smelting method

Examples

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Embodiment Construction

[0014] The comprehensive performance of the blast furnace smelting charge of high chromium type vanadium-titanium magnetite of the present invention and the blast furnace smelting of different charges will be described in detail below in conjunction with the examples.

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Abstract

The invention discloses a high-chrome vanadium-titanium magnetite blast furnace smelting charging material. The high-chrome vanadium-titanium magnetite blast furnace smelting charging material comprises, by weight, 75-85% of sintered ore, 13-20% of pellets and 2-5% of common lump ore. The sintered ore is formed by mixing and sintering materials including, by weight, 50-60% of high-chrome vanadium-titanium magnetite, 20-30% of ordinary iron ore and 20% of fuel and fusing agents. The pellets are formed by mixing and roasting materials including, by weight, 97-98% of high-chrome vanadium-titanium magnetite concentrate and 2-3% of bentonite. The common lump ore comprises, by weight, 40-50% of TFe and 15-25% of SiO2 and is free of vanadium and titanium. According to the high-chrome vanadium-titanium magnetite blast furnace smelting charging material, the metallurgical property during smelting is enhanced mainly by improving the high-chrome vanadium-titanium magnetite blast furnace smelting charging material.

Description

technical field [0001] The invention relates to a blast furnace smelting charge, in particular to a blast furnace smelting charge of high-chromium vanadium-titanium magnetite, and also relates to a blast furnace smelting method of the high-chromium vanadium-titanium magnetite, which belongs to the technical field of ore blast furnace smelting . Background technique [0002] The main method of smelting vanadium-titanium magnetite is to sinter vanadium-titanium-iron concentrate and ordinary fine ore to produce sintered ore, and vanadium-titanium-iron concentrate to produce pellets and bentonite to produce oxide pellets, and then sinter and pellets And a small amount of lump ore is added into the blast furnace together with coke according to a certain proportion, and the lower part is blown to burn the coke to generate reducing gas. , to achieve the separation of slag and iron. [0003] At present, there are few studies on blast furnace smelting of high-chromium vanadium-tita...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21B5/00
CPCC21B5/008
Inventor 付卫国文永才蒋胜宋剑
Owner PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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