A charge structure for blast furnace smelting ultra-high ratio vanadium-titanium magnetite

A vanadium titanomagnetite and blast furnace smelting technology, applied in blast furnaces, blast furnace details, furnaces, etc., can solve the problems of increased sulfur load in the furnace and reduced sulfur capacity of slag, and achieves suppression of foaming, increased proportion, and good fluidity. Effect

Active Publication Date: 2022-03-08
CHONGQING UNIV +1
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a charge structure for smelting ultra-high ratio vanadium-titanium magnetite in a blast furnace, so as to solve the sulfur load in the furnace during the process of smelting vanadium-titanium magnetite resources in the blast furnace increase, and the reduction of slag sulfur capacity and other issues

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 charge structure for blast furnace smelting ultra-high ratio vanadium-titanium magnetite
  • A charge structure for blast furnace smelting ultra-high ratio vanadium-titanium magnetite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] The invention will be further described below with reference to the accompanying drawings and examples.

[0033] First, the ultra-high ratio for a blast furnace charge vanadium-titanium magnetite structures, specifically: a high ratio of the whole pellet magnesia vanadium and titanium + vanadium-titanium sinter high basicity + a small amount of alumina ore. The present invention refers to the ratio mentioned ultra high-basicity sinter vanadium and titanium, the proportion of all-vanadium-titanium magnetite from 80% to 100%. The present invention is referred to a high basicity sinter it refers to vanadium-titanium sinter basicity CaO / SiO 2 Greater than 2.0.

[0034] Table 1: Comparison Table of the prior art

[0035] Example Pocolite Sinter Block mine Vanadium-titanium mine accounts for a percentage of total furnace Sulfur load kg / t current technology 20% 75% 0-5% 50.05~53.90 3.805~3.835 this invention 40%~50% 47%~55% 2%~5% 84~88 3.703~3.7...

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 charge structure for blast furnace smelting ultra-high ratio vanadium-titanium magnetite. 45~55%, high alumina lump ore 0~5%; Among them, the pellets use all-vanadium-titanium-magnetite as raw material, increase the content of magnesium oxide in the pellets, and make all-vanadium-titanium-magnesium pellets , the sulfur content of the pellets in the charge is 0.017%; the binary basicity (CaO / SiO 2 ) greater than 2.0. The invention solves the problems of increased sulfur load in the furnace and decreased sulfur capacity of slag during blast furnace smelting vanadium-titanium magnetite resources, greatly increases the proportion of vanadium-titanium magnetite in high-alkalinity sintered ore, and realizes Resource utilization of vanadium-titanium magnetite in Panxi area.

Description

Technical field [0001] Technical Field The present invention relates to a blast furnace, particularly to an ultra-high ratio in blast furnace burden structure vanadium and titanium magnetite. Background technique [0002] Is a kind of vanadium-titanium magnetite iron, vanadium, titanium-based mineral resources complex multi-metal element symbiosis, because great utilization value, cause for concern. Our Panzhihua region relying on the rich resources of vanadium-titanium magnetite region, established a complete blast - iron and steel smelting process, to achieve the extraction and use of Fe, V and Ti three elements. Vanadium-titanium magnetite blast furnace ironmaking is China's contribution to the international community, with the new situation highlights the problems of resources and environment, efficient use of resources, the level of cleaning process, the sustainable development of the industry are dependent on the depth and persistence basic research, for a reasonable charge...

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): C22B1/16C22B1/24C21B5/00
CPCC22B1/16C22B1/24C21B5/008
Inventor 吕学伟庞正德凌家伟蒋宇阳严志明潘成文永才付卫国谢洪恩
Owner CHONGQING 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