Supercharge Your Innovation With Domain-Expert AI Agents!

A Microwave Thermal Assisted Grinding Method of Vanadium-Titanium Magnetite

A vanadium titanomagnetite and microwave technology, applied in microwave heating, grain processing and other directions, can solve the problems of high energy consumption and low grinding efficiency, and achieve the advantages of reducing process energy consumption, improving grinding efficiency and reducing energy consumption. Effect

Active Publication Date: 2018-05-04
NORTHEASTERN UNIV LIAONING
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems of high energy consumption and low grinding efficiency in the grinding operation of vanadium-titanium magnetite in the prior art, the present invention provides a microwave thermally assisted grinding method of vanadium-titanium magnetite, the purpose of which is to utilize the selectivity of microwave The characteristics of heating, pretreatment of ore before grinding, promote the dissociation of valuable minerals and gangue, effectively reduce the energy consumption of the grinding 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 Microwave Thermal Assisted Grinding Method of Vanadium-Titanium Magnetite
  • A Microwave Thermal Assisted Grinding Method of Vanadium-Titanium Magnetite
  • A Microwave Thermal Assisted Grinding Method of Vanadium-Titanium Magnetite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The vanadium-titanium magnetite microwave heat-assisted grinding method of the present embodiment is as follows figure 1 shown, follow the steps below:

[0024] (1) Preliminarily crush the vanadium-titanium magnetite to 2~5mm, and fully dry in the air;

[0025] (2) Weigh 80g of vanadium-titanium magnetite after drying and put it into microwave equipment for heating. The heating time is 120s, the stable microwave output power is 2Kw, and the frequency is 2450MHz. SEM images of vanadium-titanium magnetite before and after microwave heating figure 2 shown, from figure 2 It can be seen that after microwave heating, a large number of cracks are generated inside the ore sample. This is due to the selective heating of microwaves, which causes different degrees of expansion between different mineral phases, resulting in a large number of cracks inside the ore sample. Cracks are mainly generated along the boundary of useful minerals (bright phase) and gangue (dark phase), a...

Embodiment 2

[0028] The vanadium-titanium magnetite microwave heat-assisted grinding method of the present embodiment is as follows figure 1 shown, follow the steps below:

[0029] (1) Preliminarily crush the vanadium-titanium magnetite to 1~10mm, and fully dry in the air;

[0030] (2) Weigh 150g of vanadium-titanium magnetite after drying and put it into microwave equipment for heating. The heating time is 150s, the stable microwave output power is 1Kw, and the frequency is 2450MHz. After heating, take it out quickly and let it cool naturally in the air to room temperature;

[0031] (3) Use a ball mill to grind the cooled vanadium-titanium magnetite, and the grinding time is 90s. After the vanadium-titanium magnetite product obtained from the final grinding is screened, the percentage content of the particle size less than 0.074mm accounts for the total mass 93.36%.

Embodiment 3

[0033] The vanadium-titanium magnetite microwave heat-assisted grinding method of the present embodiment is as follows figure 1 shown, follow the steps below:

[0034] (1) Preliminarily crush the vanadium-titanium magnetite to 1~10mm, and fully dry in the air;

[0035] (2) Weigh 40g of vanadium-titanium magnetite after drying and put it into microwave equipment for heating. The heating time is 60s, the stable microwave output power is 4Kw, and the frequency is 2450MHz. After heating, take it out quickly and let it cool naturally in the air to room temperature;

[0036] (3) Grind the cooled vanadium-titanium magnetite with a ball mill, and the grinding time is 30s. After the vanadium-titanium magnetite product obtained from the final grinding is screened, the percentage content of the particle size smaller than 0.074mm accounts for the total mass 94.79%.

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 relates to the technical field of mineral processing, and in particular to a microwave thermal-assisted grinding method of vanadium-titanium magnetite. The invention performs microwave heating pretreatment on the ore before grinding, so that the useful minerals in the ore are heated first and the gangue is not directly heated, resulting in the uneven distribution of the temperature of the multi-element multi-phase complex ore system on the microscopic level, so that the valuable minerals and Thermal stress is generated between the gangue interfaces, which promotes the dissociation of valuable minerals and gangue, effectively reduces the energy consumption in the grinding process, and improves the ore crushing efficiency. It has unique advantages and practicability, and has broad application prospects.

Description

technical field [0001] The invention relates to the technical field of mineral processing, in particular to a microwave thermal-assisted grinding method of vanadium-titanium magnetite. Background technique [0002] Vanadium-titanium magnetite is a rich composite mineral resource with significant comprehensive utilization value, but the distribution of vanadium-titanium magnetite mineral particles is fine, such as ilmenite spar (2FeO·TiO 2 ) in the form of reticular flakes (0.1~0.01mm), ilmenite (FeO·TiO 2 ) in the form of lamellar crystals (0.01~0.005mm). In order to realize the separation of useful minerals and gangues, a large amount of energy is required to grind the ores finely, but some mineral particles are too fine to separate iron, vanadium and titanium by ordinary grinding methods. Contents of the invention [0003] Aiming at the problems of high energy consumption and low grinding efficiency in the grinding operation of vanadium-titanium magnetite in the prior ...

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): B02C23/00B02C17/00H05B6/64
CPCB02C17/00B02C23/00H05B6/64
Inventor 姜涛王俊鹏刘亚静高慧阳薛向欣段培宁
Owner NORTHEASTERN UNIV LIAONING
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com