Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method of high-chromium high-vanadium type vanadium-titanium ore pellets

A vanadium-titanium ore and high-vanadium technology, which is applied in the field of preparation of vanadium-titanium ore pellets, can solve the problems of agglomeration or nodules, affecting the quality of finished balls, and the pellets are prone to over-melting, so as to achieve stable composition and ensure Yield, the effect of improving the quality of green pellets

Inactive Publication Date: 2013-09-25
HEILONGJIANG JIANLONG IRON & STEEL
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problem that the existing process for preparing high chromium-high vanadium type vanadium-titanium magnetite pellets is prone to over-melting, resulting in agglomeration or nodules, which affects the quality of finished balls, and provides a A kind of preparation method of high chromium-high vanadium type vanadium-titanium ore pellet

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

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0013] Embodiment one: the preparation method of high chromium-high vanadium type vanadium-titanium ore pellets is realized through the following steps:

[0014] One, batching: take by weight 45~50 parts of vanadium-titanium ore, 50~55 parts of iron material, 1.8~2.1 parts of bentonite, wherein iron material is by weight percentage by 11%~28% iron ore powder and Composed of 72% to 89% ultrafine iron powder, the particle size of the iron ore powder is 0.5mm to 3.5mm, and the fineness of the ultrafine iron powder is -325 mesh ≥ 85% or -200 mesh ≥ 95%;

[0015] 2. Mixing and drying: Mix the vanadium-titanium ore, iron material and bentonite weighed in step 1 evenly, and dry to reduce the moisture content of the mixture to 6% to 8%;

[0016] 3. Pelletizing: During the pelletizing process, water is added to control the moisture content of the raw pellets at 9% to 11%;

[0017] 4. Screening of raw pellets: select raw pellets with a particle size range of 8-16 mm in step 3, and retu...

specific Embodiment approach 2

[0021] Embodiment 2: The difference between this embodiment and Embodiment 1 is that in Step 1, 46-49 parts of vanadium-titanium ore, 51-54 parts of iron material, and 1.9-2.0 parts of bentonite are weighed in the first step. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0022] Embodiment 3: This embodiment is different from Embodiment 1 or 2 in that in Step 5, the temperature of the drying bed is controlled at 520-580°C, the temperature of the fume hood is controlled at 90-140°C, and the thickness of the material layer is controlled at 160-190mm . Others are the same as in the first or second embodiment.

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

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a preparation method of high-chromium high-vanadium type vanadium-titanium ore pellets. The invention relates to a preparation method of vanadium-titanium ore pellets. With existing high-chromium high-vanadium type vanadium-titanium ore pellet preparation technologies, pellet superfusion is possible to occur, and pellet caking or nodulation are possible to occur, such that the quality of finished pellet product is influenced. The invention aims at solving the problem. The preparation method of the high-chromium-high vanadium type vanadium-titanium ore pellets comprises the steps of material blending, mixed drying, palletizing, green pellet screening, and shaft furnace roasting. Vanadium content of vanadium-titanium powder in the vanadium-titanium pellets is higher than 4.5%, such that a requirement by blast furnace vanadium-titanium smelting is satisfied. The high-chromium-high vanadium type vanadium-titanium ore pellet preparation method provided by the invention is used for preparing vanadium-titanium ore pellets.

Description

technical field [0001] The invention relates to a preparation method of vanadium-titanium ore pellets. Background technique [0002] In the prior art, the mineral composition of high chromium-high vanadium type vanadium-titanium magnetite is complex, and the thermal operation system during shaft furnace roasting is not suitable to be determined, which will easily lead to over-melting of pellets, agglomeration or nodules, and affect the quality of finished balls . Contents of the invention [0003] The present invention aims to solve the problem that the existing process for preparing high chromium-high vanadium type vanadium-titanium magnetite pellets is prone to over-melting, resulting in agglomeration or nodules, which affects the quality of finished balls, and provides a A method for preparing high chromium-high vanadium type vanadium-titanium ore pellets. [0004] The preparation method of high chromium-high vanadium type vanadium-titanium ore pellet of the present i...

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): C22B1/243C22B1/214
Inventor 张勇薛向欣姚本金储满生陈立军陈立文曲刚巩明健张路春纪守考曹淑华
Owner HEILONGJIANG JIANLONG IRON & STEEL
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com