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A kind of smelting method of vanadium titanium magnetite

A vanadium-titanium magnetite and smelting method technology, applied in the field of ironmaking, can solve the problems of rising furnace charge temperature, difficulty in ensuring high gas utilization rate of blast furnace, etc., achieve uniform material distribution, improve blast furnace smelting efficiency, and increase smelting intensity Effect

Active Publication Date: 2019-01-01
SICHUAN DESHENG GRP VANADIUM & TITANIUM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the mixed loading method is generally used for blast furnace material distribution. Affected by factors such as changes in the quality of raw materials and fuels, during the production process of the blast furnace, the gas flow is relatively developed in places with a lot of coke, so the temperature of the furnace charge rises rapidly, and it is difficult to ensure the high gas consumption of the blast furnace. utilization rate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A method for smelting vanadium-titanium magnetite comprises: mixing a large batch of ore with a particle size of 8 to 16 mm and a small batch of ore with a particle size of 6 to 8 mm to obtain the ore, and according to the distribution system J 33 3 31 3 29 3 27 2 20 2 , K 31 2 29 3 27 2 26 2 For distributing; among them, J represents coke, K represents ore, and the inclination angle of the distribution chute is divided into 6 gears, 5 gears, 4 gears, 3 gears, 2 gears and 1 gear. The subscripts indicate the respective corresponding angles, and the numerical subscripts correspond to the number of turns of the gears. The inclination angles of the distribution chute are divided into 6 gears, 5 gears, 4 gears, 3 gears, 2 gears and 1 gear, corresponding to The angles are 33°, 31°, 29°, 27°, 26° and 20°. At the 6th gear position, when the coke falls, the chute rotates 3 times; at the 5th gear position, when the coke falls, the chute rotates 3 times. , when th...

Embodiment 2

[0029] A method for smelting vanadium-titanium magnetite includes: mixing a large batch of ore with a particle size of 8 to 16 mm and a small batch of ore with a particle size of 6 to 8 mm to obtain the ore, according to the distribution system J 33 3 31 3 29 3 27 2 20 2 , K 31 2 29 3 27 2 26 2 For distributing; among them, J represents coke, K represents ore, and the inclination angle of the distribution chute is divided into 6 gears, 5 gears, 4 gears, 3 gears, 2 gears and 1 gear. The subscripts indicate the respective corresponding angles, and the numerical subscripts correspond to the number of turns of the gears. The inclination angles of the distribution chute are divided into 6 gears, 5 gears, 4 gears, 3 gears, 2 gears and 1 gear, corresponding to The angles are 33°, 31°, 29°, 27°, 26° and 20°. At the 6th gear position, when the coke falls, the chute rotates 3 times; at the 5th gear position, when the coke falls, the chute rotates 3 times. , when the ore...

Embodiment 3

[0034] A method for smelting vanadium-titanium magnetite comprises: mixing a large batch of ore with a particle size of 8 to 16 mm and a small batch of ore with a particle size of 6 to 8 mm to obtain the ore, and according to the distribution system J 33 3 31 3 29 3 27 2 20 2 , K 31 2 29 3 27 2 26 2 For distributing; among them, J represents coke, K represents ore, and the inclination angle of the distribution chute is divided into 6 gears, 5 gears, 4 gears, 3 gears, 2 gears and 1 gear. The subscripts indicate the respective corresponding angles, and the numerical subscripts correspond to the number of turns of the gears. The inclination angles of the distribution chute are divided into 6 gears, 5 gears, 4 gears, 3 gears, 2 gears and 1 gear, corresponding to The angles are 33°, 31°, 29°, 27°, 26° and 20°. At the 6th gear position, when the coke falls, the chute rotates 3 times; at the 5th gear position, when the coke falls, the chute rotates 3 times. , when th...

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Abstract

The invention discloses a vanadium titanium magnetite smelting method. The smelting method is characterized in that a burden distribution system is J333313293272202 and K312293272262, wherein J represents coke, K represents mineral, the inclined angle of a burden distribution chute is divided into a sixth gear, a fifth gear, a fourth gear, a third gear, a second gear and a first gear, number superscripts represent corresponding angles, and number subscripts correspond to number of rings of corresponding gears. The smelting method is even in burden distribution, gas flow distribution is reasonable, the gas using rate is improved, the blast furnace smelting intensity is improved, and furnace wall scaffolding is prevented.

Description

technical field [0001] The invention relates to the technical field of ironmaking, in particular to a method for smelting vanadium-titanium magnetite. Background technique [0002] The blast furnace is a countercurrent reactor. The gas is generated in the lower part of the blast furnace, and then rises through the material layer; the furnace material descends from the upper part and interacts with the gas to complete the smelting process such as heating, reduction, slagging, and melting. , the furnace charge goes from top to bottom in the blast furnace, and the temperature gradually rises until it is melted, and the layered structure of the furnace throat cloth is maintained. The ore layer and the coke layer have different air permeability, and the resistance of the ore layer is 10 to 20 times greater than that of the coke layer. [0003] At present, the mixed loading method is generally used for blast furnace material distribution. Affected by factors such as changes in th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21B5/00C21B5/06
CPCC21B5/008C21B5/06
Inventor 林刚刘德安何益先江青芳王远征周平
Owner SICHUAN DESHENG GRP VANADIUM & TITANIUM CO LTD
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