Sintering method of high-grade vanadium-titanium-iron ore concentrates

A vanadium ilmenite concentrate and sintering method technology, applied in the field of smelting, can solve the problems of sintered ore yield, utilization coefficient, poor drum index, low content of silicate binder phase, etc. The effect of improving the sintering process and increasing the sintering rate

Inactive Publication Date: 2021-04-02
SICHUAN DESHENG GRP VANADIUM & TITANIUM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, high-grade vanadium-titanium-iron concentrate has less silicate binder phase content, resulting in poorer sinter yield, utilization factor, drum index and other indicators than ordinary ore

Method used

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  • Sintering method of high-grade vanadium-titanium-iron ore concentrates

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A method for sintering high-grade vanadium-titanium iron ore concentrate, comprising:

[0030] 1) Sieving coke powder to obtain coke powder with particle size ≤ 2mm and coke powder with particle size ≤ 6mm;

[0031] Mix the sintering raw materials evenly, the sintering raw materials include 50-60 parts by weight of high-grade vanadium-titanium iron concentrate powder, 5-8 parts of iron concentrate powder, 10-20 parts of flux, and 3-5 parts of fuel A;

[0032] 2) Potassium permanganate solution is sprayed on the sintered raw material, and water is added to infiltrate the sintered raw material, and then pelletized to obtain pellet B;

[0033] 3) The material layer B is obtained by distributing the pellets B; the material layer C is obtained by using the cloth fuel C on the material layer B; the thickness of the material layer B is 650mm-700mm, and the thickness of the material layer C is 20mm-50mm;

[0034] 4) ignition and sintering in a nitrogen environment to obtain va...

Embodiment 2

[0046] A kind of sintering method of high-grade vanadium-titanium iron concentrate

[0047] The difference between this embodiment and embodiment 1 is only:

[0048] In step 1), the sintering raw materials are uniformly mixed, and the sintering raw materials include 50 parts by weight of high-grade vanadium-titanium iron concentrate powder, 8 parts of iron concentrate powder, 20 parts of flux, and 3 parts of fuel A.

[0049] In this embodiment, the sintering utilization coefficient is 1.358t / (m2·h), the yield is 76.62%, and the drum index is 75.6%.

Embodiment 3

[0051] A kind of sintering method of high-grade vanadium-titanium iron concentrate

[0052] The difference between this embodiment and embodiment 1 is only:

[0053] In step 1),

[0054] Mix the sintering raw materials evenly, and the sintering raw materials include 60 parts by weight of high-grade vanadium-titanium-iron concentrate powder, 5 parts of iron concentrate powder, 10 parts of flux, and 3 parts of fuel A.

[0055] In this embodiment, the sintering utilization coefficient is 1.357t / (m2·h), the yield is 76.51%, and the drum index is 75.1%.

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Abstract

The invention discloses a sintering method of high-grade vanadium-titanium-iron ore concentrates. The sintering method comprises the following steps that 1), sintering raw materials are mixed evenly and comprise the following components in parts by weight: 50-60 parts of high-grade vanadium-titanium-iron ore concentrate powder, 5-8 parts of iron ore concentrate powder, 10-20 parts of flux and 3-5parts of fuel A; 2), a potassium permanganate solution is sprayed onto the sintering raw materials, water is added to soak the sintering raw materials, and then pelletizing is conducted to obtain pellets B; and 3), the pellets B are distributed to obtain a material layer B, fuel C is distributed on the material layer B to obtain a material layer C, the thickness of the material layer B ranges from650 mm to 700 mm, the thickness of the material layer C ranges from 20 mm to 50 mm, and igniting and sintering in a nitrogen environment are conducted to obtain vanadium-titanium sinter. The sintering performance improvement effect is remarkable, and the sintering utilization coefficient, the yield and the drum index can be improved.

Description

technical field [0001] The invention relates to the technical field of smelting, in particular to a sintering method of high-grade vanadium-titanium-iron concentrate. Background technique [0002] my country is rich in vanadium-titanium magnetite resources. With the massive development and utilization of mineral resources, the ore is becoming increasingly scarce. Facing the huge demand for ferroalloys and the reality that my country's iron ore resources are poor, fine and miscellaneous, comprehensive development and utilization of vanadium-titanium Magnetite is an inevitable trend. [0003] Vanadium-titanium alloys are mainly used in the iron and steel industry. Adding a certain amount of vanadium-titanium to steel can improve the wear resistance, strength, hardness, ductility and other properties of the steel, so that the strength of the steel structure can be increased while the weight can be reduced. [0004] However, high-grade vanadium-titanium-iron concentrate has less...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B1/24C22B1/16
CPCC22B1/2406C22B1/16
Inventor 向成功高华斌张成立杨百顺万成陆才天
Owner SICHUAN DESHENG GRP VANADIUM & TITANIUM CO LTD
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