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A device constituting the full action surface of a permanent magnet

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: 2011-12-28
WUHAN PEAKREALM MAGNETIC TECH CO LTD
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  • Summary
  • 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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  • A device constituting the full action surface of a permanent magnet
  • A device constituting the full action surface of a permanent magnet
  • A device constituting the full action surface of a permanent magnet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Example 1. Magnetic separator for separating limonite and hematite:

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

[0043] As...

Embodiment 2

[0045] Example 2. Magnetic separator for separating iron in red mud:

[0046] The method of Example 1 is used to prepare a magnetic separator with a magnetic roller with a diameter of 1500mm and a length of 4000mm. The small permanent magnet is grade N48, 15mm in length, 4mm in width, and 5mm in height (15×4×5mm), in which the height is a permanent magnet. The direction of excitation. The surface magnetic field intensity of the permanent magnet active surface 3 is 5000-5500GS. Assisted with impurity removal device and ore unloading device, the magnetic separator can be used for the separation of iron in red mud. Daily processing of raw ore can reach 1,000 tons.

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

Embodiment 3

[0048] Example 3. Magnetic separator for separating chromite ore:

[0049] The method of Example 1 was used to prepare a magnetic separator with a magnetic roller of 1200mm in diameter and 2000mm in length, with a small permanent magnet grade of N42, 15mm in length, 4mm in width, and 4mm in height (15×4×4mm), in which the height is a permanent magnet The direction of excitation. The surface magnetic field intensity of the permanent magnet active surface 3 is 3000~3500GS. With the aid of impurity removal device and ore unloading device, the magnetic separator can be used for the separation of chromite ore. Daily processing of raw ore can reach 500 tons.

[0050] For example, for sorting chromite ore with a particle size of -0.15mm, when the chromium in the original ore grade is 28.17%, the magnetic separator can obtain a concentrate grade of chromium grade of 49.27%, iron grade of 16.70%, and tailings. The taste 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 forming a permanent permanent magnet full-action surface. The device is composed of tiny permanent magnets and magnetic conductors. The permanent-magnet action surface in the device is composed of a plurality of tiny permanent magnets of the same size (with a size of 18× 18×18mm~2×2×2mm) are arranged in close vertical and horizontal parallel, and are adsorbed on the surface of the magnet conductor by their own magnetic force, and the polarities of the two adjacent tiny permanent magnets are opposite, and the excitation direction of a single permanent magnet is perpendicular to the direction of the magnet conductor. The upper plane; the device is used for the separation of weak magnetic substances with a specific magnetic susceptibility between (15-600) × 10-6 cm3 / g, and can be used for non-metallic minerals to remove weak magnetic substances. equipment. The device provided by the invention has the advantages of balanced magnetic force on the action surface, large magnetic force on the action surface, adjustable magnetic field intensity and gradient, no loss of the magnetic force on the action surface, high separation capacity and wide adaptability.

Description

Technical field [0001] The present invention relates to permanent magnets, in particular to a device that constitutes a permanent magnet full-acting surface. Background technique [0002] The main equipment currently used for sorting weak magnetic materials is an electromagnetic magnetic separator, which has high energy consumption, is complicated to manufacture, and is easy to cause blockage. The second is the extrusion type permanent magnetic circuit equipment designed with high-performance neodymium iron boron material and magnetic medium. It is aimed at pursuing high magnetic field strength. Therefore, the manufacturing cost is high, the active surface is limited to the magnetic medium, the output is low, and the selection is serious. . Both of the above two devices gather the magnetic lines of force to form a local high field strength, resulting in a small effective surface, low yield, and serious missed selection. Summary of the invention [0003] The technical problem to ...

Claims

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Application Information

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Patent Type & Authority Patents(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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