A sintering method for improving the quality of vanadium-titanium sintered ore

A technology of vanadium-titanium sintering ore and sintering method, which is applied in the field of ironmaking, can solve the problems of few applications, and achieve the effects of improving drum strength, good low-temperature reduction performance, and increasing production

Active Publication Date: 2022-03-25
CENT SOUTH UNIV
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, the methods for improving the quality of vanadium-titanium sintered ore have their shortcomings, and they are rarely used in the actual production process.

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A sintering method for improving the quality of vanadium-titanium sintered ore

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The iron-containing raw material of vanadium-titanium sinter is 100% vanadium-titanium magnetite.

[0033] In the high alkalinity mixture: the solvent is a mixture of unslaked lime, limestone and dolomite, its mass ratio is 14:5:10, the proportion of coke powder is 3.8wt% of the high alkalinity mixture, and the control alkalinity is 2.50. The water content of the granules is 7.0%, which is used as a high-alkalinity mixture after mixing and granulating in a cylinder mixer;

[0034] Low-alkalinity mixture: the solvent is quicklime, the proportion of coke powder is 3.8wt% of the low-alkalinity mixture, the alkalinity is controlled to 1.50, and the granulation water is 7.0%. Alkalinity mix.

[0035] First lay a 30mm base material, then spread the low-alkalinity mixture, the height of the fabric is 350mm, and then spread the high-alkalinity mixture on the top of the low-alkalinity mixture, the fabric height is 350mm, and the height of the two layers is 700mm , the comprehe...

Embodiment 2

[0037] Under the situation that other conditions are identical with embodiment 1, the high-basicity mixture is first carried out cloth, then the low-basicity mixture is distributed above the high-basicity mixture, the yield of obtained sintered ore, drum strength, Utilization coefficient, solid burnup and low-temperature reducing pulverization index RDI +3.15 Respectively 68.86%, 57.33%, 1.71t / (m 2 h), 57.73Kg / t 烧结矿 and 54.81%.

Embodiment 3

[0039]Under the situation that other conditions are identical with embodiment 1, earlier high alkalinity mixture is carried out cloth, cloth height is 490mm, then low alkalinity mixture is clothed on high alkalinity mixture top, cloth height is 210mm, comprehensive alkali degree of 2.2, the obtained sinter yield, drum strength, utilization coefficient, solid fuel consumption and low temperature reduction pulverization index RDI +3.15 Respectively 69.68%, 57.93%, 1.75t / (m 2 h), 56.92Kg / t 烧结矿 and 60.09%.

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

PUM

No PUM Login to view more

Abstract

The invention discloses a sintering method for improving the output quality of vanadium-titanium sintered ore. First, the vanadium-titanium sintered ore raw material is prepared into a high-alkalinity mixture and a low-alkalinity mixture, and then two kinds of sintering mixtures with different alkalinity are sintered. The sintered material is distributed sequentially on the trolley, so that the sintered material has a double-layer mixture layer structure with two basicities. Finally, after one ignition sintering, crushing and cooling, the vanadium-titanium sintered ore is obtained. The invention can effectively overcome the problems of low yield of vanadium-titanium sintered ore, poor strength, especially poor pulverization performance at low temperature, and can make full use of the heat storage effect of the material layer, significantly reduce sintering energy consumption, and reduce pollutant discharge.

Description

technical field [0001] The invention belongs to the technical field of ironmaking, and relates to a sintering method for improving the quality of vanadium-titanium sintered ore. Background technique [0002] Vanadium-titanium magnetite is an important strategic resource, and its rich reserves of iron, titanium and vanadium have a decisive position in my country and the world. The treatment of vanadium-titanium magnetite by blast furnace method is a relatively mature process. The industrial resources such as vanadium and titanium in my country are mainly extracted by blast furnace method. Vanadium-titanium magnetite is sintered to prepare artificial lump ore, and then smelted in blast furnace to separate valuable resources such as iron, titanium and vanadium. Due to the unique properties of vanadium-titanium magnetite, the sintered ore produced has problems such as poor low-temperature reduction pulverization performance, low yield, and poor drum strength. In particular, th...

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

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): C22B1/16
CPCC22B1/16
Inventor 钟强姜涛李光辉徐良平彭志伟饶明军张鑫郭宇峰杨永斌李骞刘会波程德
Owner CENT SOUTH UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap