Wet-type magnetic separation method of magnetite

A magnetite and wet technology, applied in the field of magnetite wet magnetic separation, can solve the problems of high power consumption and steel consumption, and high production cost, and achieve the effect of reducing steel consumption and power consumption.

Inactive Publication Date: 2011-11-16
CHENGDU LEEJUN IND
View PDF13 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a magnetite wet magnetic separation method with low power consumption and steel consumption and low pro

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
  • Wet-type magnetic separation method of magnetite
  • Wet-type magnetic separation method of magnetite
  • Wet-type magnetic separation method of magnetite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: a kind of method for magnetite wet type magnetic separation, comprises the steps:

[0023] A. Send the raw magnet ore to the crusher for coarse crushing, and then send it to the vibrating screen for screening. The sieve hole is controlled to 35mm. crushed;

[0024] B, the finely crushed ore in step A is sent to a wet linear vibrating screen for screening, the oversize is returned to the high pressure roller mill for fine crushing, the undersize is subjected to wet magnetic separation, and the magnetic field strength is controlled to 180mT;

[0025] C. Send the ore after wet magnetic separation in step B into a high-frequency vibrating fine sieve, and control the sieve hole size to 0.2mm. Enter the magnetic separator for magnetic separation to obtain a concentrate product with a grade of 66.5%.

[0026] In the step A, the magnet raw ore is roughly crushed to 200mm by a gyratory crusher.

[0027] In the step A, a standard cone crusher is used for intermed...

Embodiment 2

[0030] Embodiment 2: a kind of method for magnetite wet type magnetic separation, comprises the steps:

[0031] A. Send the raw magnet ore to the crusher for coarse crushing, and then send it to the vibrating screen for screening. The sieve hole is controlled to 55mm. crushed;

[0032] B, the finely crushed ore in step A is sent to a wet linear vibrating screen for screening, the oversize is returned to the high pressure roller mill for fine crushing, the undersize is subjected to wet magnetic separation, and the magnetic field strength is controlled to 180mT;

[0033] C. Send the ore after wet magnetic separation in step B into a high-frequency vibrating fine screen, and control the screen hole size to 0.12mm. Enter the magnetic separation column for magnetic separation to obtain a concentrate product with a grade of 65%.

[0034] In the step A, the raw magnet ore is roughly crushed to a size of 150mm by a jaw crusher.

[0035] In the step A, a standard cone crusher is use...

Embodiment 3

[0038] Embodiment 3: a kind of method for magnetite wet type magnetic separation, comprises the steps:

[0039] A. Send the raw magnet ore to the crusher for coarse crushing, and then send it to the vibrating screen for screening. The sieve hole is controlled to 60mm. crushed;

[0040] B, the finely crushed ore in step A is sent to a wet linear vibrating screen for screening, the oversize is returned to the high pressure roller mill for fine crushing, the undersize is subjected to wet magnetic separation, and the magnetic field strength is controlled to 180mT;

[0041] C. Send the ore after wet magnetic separation in step B into a high-frequency vibrating fine sieve, and control the sieve hole size to 0.5mm. Enter magnetic separator magnetic separation, obtain the concentrate product of grade 65%.

[0042] In the step A, the raw magnet ore is roughly crushed to a size of 180mm by a jaw crusher.

[0043] In the step A, a standard cone crusher is used for intermediate crushin...

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 wet-type magnetic separation method of magnetite. Magnet crude ores are fed into a crusher to be subjected to coarse crushing, the crushed crude ores are fed into a vibrating screen to be screened, a sieve pore is controlled to be 35-75mm, an oversize product is fed into the crusher to be crushed, and the crushed oversize product and screen underflow are fed into a high pressure roller mill to be subjected to fine crushing; the finely crushed ores are fed into a wet-type linear vibrating screen to be screened, the oversize product returns to the high pressure roller mill to be subjected to fine crushing, the screen underflow is subjected to wet-type magnetic separation, and the magnetic field intensity is controlled to be 120-300mT; and the ores subjected to wet-type magnetic separation is fed into a high frequency vibrating fine screen, the size of a sieve pore is controlled to be 0.10-0.5mm, the oversize product is dehydrated by virtue of a vacuum belt filter and returns to the high pressure roller mill to be subjected to fine crushing, and the screen underflow is fed into a magnetic separator or a magnetic separation column to be subjected to magnetic separation, thus a concentrate product is obtained. By adopting the wet-type magnetic separation method provided by the invention, the power consumption and steel consumption are low, and the production cost is low.

Description

technical field [0001] The invention belongs to the technical field of mineral processing, and in particular relates to a method for wet magnetic separation of magnetite. Background technique [0002] At present, the production process of magnetite is a stage grinding-stage magnetic separation process, which mainly includes crushing, grinding, classification, one-stage magnetic separation, coarse concentrate regrinding, two-stage magnetic separation, fine screen, magnetic separation column and other stages. . After the raw ore is dry crushed by a gyratory crusher or a jaw crusher, the particle size is reduced to 300-350mm, and then after being dry crushed by a standard cone crusher, the particle size is reduced to 70-100mm. The material passes through a vibrating screen, and the material under the screen enters the powder The ore bin is temporarily stored, and the material on the screen enters the short-head cone crusher for fine crushing, and the product is returned to the...

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
IPC IPC(8): B02C21/00B02C4/00B02C23/08B03C1/02
Inventor 何亚民魏勇徐智平
Owner CHENGDU LEEJUN IND
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