Device for constituting permanent magnet full-acting surface

An active surface, permanent magnet technology, applied in the direction of permanent magnet, magnetic separation, inductor/transformer/magnet manufacturing, etc., can solve the problems of high manufacturing cost, complex manufacturing, low yield, etc., and achieve high sorting capacity and easy installation. , the effect of high productivity

Inactive Publication Date: 2010-01-20
WUHAN PEAKREALM MAGNETIC TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The main equipment currently used for sorting weak magnetic substances is electromagnetic magnetic separator, which has high energy consumption, complicated manufacture and easy to cause blockage
Secondly, the extruded permanent magnet magnetic circuit equipment designed with high-performance NdFeB material and magnetic medium is aimed at pursuing high magnetic field strength, so the manufacturing cost is high, the active surface is limited to the magnetic medium, the output is low, and the selection is serious.
The above two equipments gather the magnetic field lines to form a local high field strength, resulting in a small action surface, low yield and serious leakage.

Method used

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  • Device for constituting permanent magnet full-acting surface
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  • Device for constituting permanent magnet full-acting surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1. is used for the magnetic separator of sorting limonite, hematite:

[0042] Such as Figures 4 to 6 Shown: on the top of the cylinder with a diameter of 1200mm and a length of 2000mm, tiny permanent magnets 2 are covered along its radial and axial directions to form a permanent magnet action surface 3, and the polarities of two adjacent tiny permanent magnets are opposite. The tiny permanent magnet grade is N42, the length is 15mm, the width is 4mm, and the height is 3mm (15×4×3mm), where the height is the excitation direction of the permanent magnet. The surface magnetic field intensity of the permanent magnet action surface 3 is 4500-5000GS. The cylinder body is a magnetizer 1, which is made of a common steel plate with a thickness of 8mm; the cylinder body is connected to the transmission equipment of the magnetic separator through a shaft. Thus, a magnetic separator having a magnetic roll of 1200 mm in diameter and 2000 mm in length was produced.

[...

Embodiment 2

[0045] Embodiment 2. The magnetic separator for separating iron in red mud:

[0046] Adopting the method for embodiment 1 to prepare magnetic rollers is a magnetic separator with a diameter of 1500mm and a length of 4000mm, and the tiny permanent magnet brand N48 is 15mm long, 4mm wide, and 5mm high (15×4×5mm), wherein the high is a permanent magnet direction of excitation. The surface magnetic field intensity of the permanent magnet action surface 3 is 5000-5500GS. Auxiliary with impurity removal device and ore unloading device, this magnetic separator can be used for separation of iron in red mud. The daily processing of raw ore can reach 1,000 tons.

[0047] For example, when the red mud in Pingguo area of ​​Guangxi is sorted, when the raw ore grade is 26.02%, the magnetic separator can obtain a concentrate grade of 58.23%, a tailing grade of 21.05%, and a recovery rate of 41.70%.

Embodiment 3

[0048] Embodiment 3. is used for the magnetic separator of sorting chromite:

[0049] Adopting the method for embodiment 1 to prepare magnetic rollers is a magnetic separator with a diameter of 1200mm and a length of 2000mm, and the tiny permanent magnet brand N42 is 15mm long, 4mm wide, and 4mm high (15×4×4mm), wherein the high is a permanent magnet direction of excitation. The surface magnetic field intensity of the permanent magnet action surface 3 is 3000-3500GS. Auxiliary with impurity removal device and ore unloading device, this magnetic separator can be used for the separation of chromite ore. The daily processing of raw ore can reach 500 tons.

[0050] For example, when sorting chromite with a particle size of -0.15mm, when the chromium in the raw ore is 28.17%, the magnetic separator can obtain a concentrate with a chromium grade of 49.27% ​​and an iron grade of 16.70%. The grade of chromium is 10.70%, and the recovery rate of chromium is 78.00%.

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Abstract

The invention discloses a device for constituting a permanent magnet full-acting surface, comprising a micro permanent magnet and a magnetic conductor. In the invention, the permanent magnet acting surface is an upper flat surface which is composed of a plurality of micro permanent magnets with the same size (the size thereof is 18*18*18 mm-2*2*2 mm) which are in parallel arrangement in a horizontal and vertical manner tightly; the micro permanent magnets are adsorbed onto the surface of the magnetic conductor by utilizing magnetic force thereof; the polarities of adjacent two micro permanent magnets are opposite; the excitation direction of the single permanent magnet is vertical to the magnetic conductor. The device is applicable to the separation equipment of weak magnetic substances with the permanent magnet separation specific susceptibility being (15-600)*10<-6> cm<3>/g, and can also be applicable to non-metallic mineral equipment for removing weak magnetic substances. The device provided by the invention has the advantages of balanced magnetic force of the acting surface, big magnetic force of the acting surface, adjustable magnetic field strength and gradient, no loss of magnet force of the acting surface, high yield of separation, wide adaptability and the like.

Description

technical field [0001] The invention relates to a permanent magnet, in particular to a device constituting the full action surface of the permanent magnet. Background technique [0002] The main equipment currently used for sorting weak magnetic substances is electromagnetic magnetic separator, which has high energy consumption, complicated manufacture and easy to cause blockage. Secondly, the extruded permanent magnet magnetic circuit equipment designed with high-performance NdFeB material and magnetic medium is aimed at pursuing high magnetic field strength, so the manufacturing cost is high, the active surface is limited to the magnetic medium, the output is low, and the selection is serious. . The above two kinds of equipment gather the magnetic field lines to form a local high field strength, resulting in small action surface, low yield and serious leakage. Contents of the invention [0003] The technical problem to be solved by the present invention is: to solve th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F7/02H01F41/02B03C1/00
Inventor 周金玲王德祥
Owner WUHAN PEAKREALM MAGNETIC TECH CO LTD
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