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Schreyerite smelting method

A vanadium-titanium ore and vanadium-titanium technology, which is applied in the field of smelting vanadium-titanium ore, can solve the problems of high metal loss rate, high comprehensive fuel ratio and high pig iron cost, and achieve the advantages of reducing production cost, improving comprehensive grade and improving technical and economic indicators. Effect

Inactive Publication Date: 2018-12-25
PANGANG GRP XICHANG STEEL & VANADIUM CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

Due to the unreasonable selection of vanadium-titanium ore processing technology, there is a large gap between the grade of blast furnace and ordinary ore smelting, the comprehensive fuel ratio is high, the metal loss rate is high, and the cost of pig iron is high

Method used

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Embodiment Construction

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0023] Please refer to figure 1 , figure 1 It is a schematic flow chart of smelting vanadium-titanium ore provided by the embodiment of the present invention.

[0024] The method for smelting vanadium-titanium ore provided by the embodiment of the present invention includes: after the vanadium-titanium ore is beneficiated, it is produced in...

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Abstract

The invention discloses a schreyerite smelting method, including the steps of producing schreyerite briquettes through the briquette production technology after separation of schreyerite; preparing sinter with low titanium dioxide content (not greater than 2%) from general mineral powder and in-plant circulating material by the sintering process; smelting raw materials, including 30-70% of schreyerite briquettes, 30-60% of sinter with low titanium dioxide content, 0-10% of high-grade general lump ore, in a blast furnace. According to researches, strength of sinter is in highly negative correlation with the content of TiO2 contained in the sinter, and schreyerite in Panxi region which has high content of MgO and low content of SiO2 is much adaptable to the briquette processing technology. To plants who utilize schreyerite in Panxi region which has high content of MgO and low content of SiO2 as the main ironmaking raw material, the schreyerite smelting method can improve the grade of thesinter and the comprehensive grade of as-fried ore in the blast furnace, improve technical economic index on sintering and blast-furnace processes remarkably and reduce product cost greatly.

Description

technical field [0001] The invention relates to the technical field of mineral smelting, in particular to a method for smelting vanadium-titanium ore. Background technique [0002] my country's vanadium-titanium magnetite resources are mainly concentrated in the Panxi area, accounting for about 20% of the country's iron ore reserves, and belong to high-titanium vanadium-titanium magnetite. Since the 1960s, research on related technologies of blast furnace smelting vanadium-titanium magnetite has been carried out. The initial process route is vanadium-titanium ore → mineral processing → sintering → blast furnace; gradually developed into vanadium-titanium ore → mineral processing → [0003] [0004] In order to dilute blast furnace slag (TiO 2 ) content, with high SiO in sintering and blast furnace material structure 2 content of ore. [0005] TiO in vanadium-titanium magnetite concentrate in Panxi area 2 、A1 2 o 3 and higher content of MgO, TFe and SiO 2 The conten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21B5/00C22B1/24C22B1/16
CPCC21B5/008C22B1/16C22B1/24
Inventor 林文康饶家庭罗晓丽袁波唐渡江周林波
Owner PANGANG GRP XICHANG STEEL & VANADIUM CO LTD
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