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

Process for producing pellet by mixing and processing hematite, siderite and vanadium titano-magnetite concentrate

A technology for vanadium ilmenite concentrate and pellets, which is applied in the field of mixed processing of red rhombohedral and vanadium ilmenite concentrates and pellet ore, can solve the problems of unfavorable environment, unusable ores stacking, etc., achieve high economic benefits, improve The effect of ore utilization and reducing land occupation

Inactive Publication Date: 2010-11-24
TAIHE IRON MINE CHONGQING IRON & STEEL GROUP MINING +2
View PDF1 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, it is possible to explore a method that can rationally utilize the above two types of ores to make pellets, so as to improve economic benefits, and at the same time solve the problems of unusable ore stacking and unfavorable environment

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
  • Process for producing pellet by mixing and processing hematite, siderite and vanadium titano-magnetite concentrate
  • Process for producing pellet by mixing and processing hematite, siderite and vanadium titano-magnetite concentrate
  • Process for producing pellet by mixing and processing hematite, siderite and vanadium titano-magnetite concentrate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The process of mixing red water chestnut and vanadium-titanium-iron concentrate and processing pellets in this embodiment includes the following steps in sequence: sulfuric acid slag pretreatment, batching, mixing, pelletizing, screening, drying, preheating and roasting;

[0018] The specific surface area of ​​sulfuric acid slag can reach more than 1301.7cm2 / g through single ball milling pretreatment of sulfuric acid slag; the increase of specific surface area of ​​sulfuric acid slag has a favorable impact on the drop strength and compressive strength of green balls;

[0019] In the batching step, the reduction roasting magnetic separation process is used to process the mixed iron ore in Qijiang, Chongqing, and the iron ore concentrate grade is TFe56%, the phosphorus content is 0.21-0.35%, and the silicon dioxide content is 9.34-10.12%. As raw material Ⅰ, the iron ore concentrate grade of Taihe iron ore in Chongqing Iron and Steel Group is more than 56% TFe, the content ...

Embodiment 2

[0029] The process of mixing red water chestnut and vanadium-titanium-iron concentrate and processing pellets in this embodiment includes the following steps in sequence: batching, mixing, pelletizing, screening, drying, preheating and roasting;

[0030] In the batching step, the reduction roasting magnetic separation process is used to process the mixed iron ore in Qijiang, Chongqing, and the iron ore concentrate grade is TFe56%, the phosphorus content is 0.21-0.35%, and the silicon dioxide content is 9.34-10.12%. As raw material Ⅰ, the iron ore concentrate grade of Taihe iron ore in Chongqing Iron and Steel Group is more than 56% TFe, the content of phosphorus is 0.015%, and the content of TiO 2 The vanadium-titanium ferroconcentrate with a content of 9.13% is used as raw material II, and 5 parts of raw material I, 4 parts of raw material II and 1 part of sulfuric acid slag are prepared by weight;

[0031] In the pelletizing step, pelletizing is carried out through the grate...

Embodiment 3

[0040] The mixed processing pelletizing process of chiling and vanadium-titanium iron concentrate in this embodiment includes the following steps in sequence: sulfuric acid slag pretreatment, batching, high-pressure roller mill pretreatment, mixing, pelletizing, screening, drying, and preheating and roasting;

[0041]In the batching step, the reduction roasting magnetic separation process is used to process the mixed iron ore in Qijiang, Chongqing, and the iron ore concentrate grade is TFe56%, the phosphorus content is 0.21-0.35%, and the silicon dioxide content is 9.34-10.12%. As raw material Ⅰ, the iron ore concentrate grade of Taihe iron ore in Chongqing Iron and Steel Group is more than 56% TFe, the content of phosphorus is 0.015%, and the content of TiO 2 The vanadium-titanium ferroconcentrate with a content of 9.13% is used as raw material II, and 3 parts of raw material I, 5 parts of raw material II and 1 part of sulfuric acid slag are prepared by weight;

[0042] Thro...

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
specific surface areaaaaaaaaaaa
Login to View More

Abstract

The invention discloses a process for producing pellet by mixing and processing hematite, siderite and vanadium titano-magnetite concentrate, comprising the following steps of: proportioning, mixing, granulating, sieving, drying, preheating and roasting. The specific process conditions are adopted for proportioning, mixing, granulating, sieving, drying, preheating and roasting so that the mixed hematite and siderite and the surface submarginal vanadium titano-magnetite which are difficult to utilize can be well processed and produced into the pellet, wherein the mixed hematite and siderite has the iron concentrate (TFe) grade of 56%, the phosphor content of 0.21-0.35% and the silicon dioxide content of 9.34-10.12%, and the surface submarginal vanadium titano-magnetite has the iron concentrate (TFe) grade of more than 56%, the phosphor content of 0.015% and the silicon dioxide content of 9.13%. Therefore, the advantages of the mixed hematite and siderite and the surface submarginal vanadium titano-magnetite are complemented, and the mixed hematite and siderite and the surface submarginal vanadium titano-magnetite meet the smelting requirement. The invention effectively enhances the utilization rate of the ores and can bring high economic benefit for enterprises and decrease the land occupation of stacked waste ores and the adverse effect on environment.

Description

technical field [0001] The invention relates to a pellet processing technology, in particular to a pellet processing technology for mixing red water chestnut and vanadium-titanium iron concentrate. Background technique [0002] Due to the different components of the ore, some mines will produce a large amount of refractory chiling mixed iron ore during the mining process (for example, the Qijiang type chiling mixed iron ore resource in Chongqing area is about 150 million tons). The state is complex, a variety of minerals are symbiotic, and the particle size of the ore is extremely small, so it is difficult to dissociate. The ore can be obtained by reducing and roasting the ore with iron concentrate grade TFe56%, phosphorus 0.21-0.35%, and silicon dioxide 9.34-10.12%. At the same time, the storage of low-grade vanadium-titanium iron concentrate that is difficult to use The amount is also quite amazing (for example, there are about 53.64 million tons of low-grade off-surface ...

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 Applications(China)
IPC IPC(8): C22B1/14
Inventor 陈大元魏平舒西刚侯红斌康健赖维远魏红琼谢俊平杨显洪
Owner TAIHE IRON MINE CHONGQING IRON & STEEL GROUP MINING
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