Permanent magnet high-field intensity magnetic filter

A magnetic filter and permanent magnet technology, which is applied in the field of magnetic separators, can solve the problems of difficult to meet the separation of weak magnetic powders, the design of the magnetic system needs to be further optimized, and achieve the effect of high magnetic field strength

Inactive Publication Date: 2009-07-08
HENAN POLYTECHNIC UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] To sum up, most of the current permanent magnet strong magnetic separators adopt a closed-circuit magnetic system structure, and the separation space is constructed by two or more separate magnets. Magnetic

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  • Permanent magnet high-field intensity magnetic filter
  • Permanent magnet high-field intensity magnetic filter
  • Permanent magnet high-field intensity magnetic filter

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with embodiment (accompanying drawing):

[0027] The invention utilizes the characteristics of high magnetic energy product and high intrinsic coercive force of high-performance NdFeB magnetic material, and adopts NdFeB permanent magnetic ring and fan-shaped magnetic steel to construct a sorting magnetic system.

[0028] Such as figure 1 , 2, 3, the permanent magnet high field strength magnetic filter of the present invention comprises frame 1, the casing 27 that is installed on the frame mountain, and the main magnetic system 25 that is positioned at casing, auxiliary magnetic pole 26, sorting cavity protection cover 14. Feeding hopper 15 and magnetic-gathering medium cylinder 16; the main magnetic system 25 includes several permanent magnetic rings (rare earth permanent magnetic strong magnets) 8 and extruded The high permeability yoke sheet 9 between every two permanent magnet rings stacked on eac...

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Abstract

The invention relates to a permanentmagnet magnetic filter with high field intensity, and is characterized in that the magnetic filter comprises a plurality of permanentmagnet rings (8) and a main magnetic system (25), wherein the permanentmagnet rings (8) are connected in series on a coaxial-line, and the main magnetic system (25) is composed of high permeability yoke pieces (9) extrudedbetween every two permanentmagnet rings mutually overlapped; the inner ring cavity of each permanentmagnet ring (8) is used as a sorting space, and the magnetic rings on both sides of the same yoke piece (9) have the same polarity; and the outer ring faces surrounding the permanentmagnet rings are armed by a plurality of fan-shaped magnetic steel pieces to form auxiliary magnetic poles (26), and every magnetic ring is extruded by the upper, the lower and the outer faces so as to improve the magnetic flux of the sorting space, thereby gaining high magnetic-field intensity. As the inner ring cavity of each permanentmagnet ring is used as the sorting space and the closure magnetic system is formed by the trilateral homopolar extrusion technology in the design of the magnetic system, the magnetic-field intensity on the central axis of the sorting cavity can be ensured to be 1.3T.

Description

technical field [0001] The invention relates to magnetic separator technology, in particular to a permanent magnet high-field magnetic filter. The magnetic filter can be used for the purification of weak magnetic mineral powder, or for the analysis of magnetic mineral content in ore, and can also be used for the production of magnetized water, etc. Background technique [0002] In view of the fact that the permanent magnet system does not require excitation power consumption and cooling system, and has stable performance, compact and simple structure, low energy consumption in operation, convenient operation and maintenance, etc., the permanent magnetization of electromagnetic equipment is the relentless pursuit of people. The advent of performance NdFeB permanent magnet materials provides the basis for this. At present, almost all weak-field magnetic separation equipment and most medium-field-strength magnetic separators use permanent magnet systems, but high-field-strengt...

Claims

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Application Information

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IPC IPC(8): B03C1/00
Inventor 焦红光刘鹏黄定国马娇金吉元铁占续高艳阳
Owner HENAN POLYTECHNIC UNIV
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