High-surface-magnetism deironing magnetic plate

Abstract

A high-surface-magnetism iron removal magnetic plate comprises a shell and side plates, the shell comprises a shell body and a cover plate, and Halbach magnets are arranged in the shell body and comprise a first magnet, a second magnet and a third magnet. According to the high-surface-magnetism iron-removing magnetic plate, the Halbach array with the fixed proportion is adopted, the first magnet and the second magnet are magnetized towards the third magnet, the third magnet is magnetized upwards, the upper portion of the Halbach magnet is a magnetism gathering face and has high surface magnetic field intensity, and when the Halbach magnet is placed in the shell, under the condition that the Halbach magnet is spaced by a stainless steel sheet of 0.3 mm, the surface magnetic field intensity of the Halbach magnet is larger than the surface magnetic field intensity of the Halbach magnet, the surface magnetic field intensity of the Halbach magnet is larger than the surface magnetic field intensity of the Halbach magnet, and the surface magnetic field intensity of the Halbach magnet is larger than the surface magnetic field intensity of the third magnet. The surface magnetic field intensity of the magnetic gathering surface above the shell can still reach 1.5 T or above, other surfaces all show weak magnetism, and safety factors caused by strong magnetism of a non-magnetic gathering surface are reduced.

Description

Technical Field

[0001] The utility model relates to a high surface magnetism removing ferromagnetic plate. Background Art

[0002] In recent years, with the development of the new energy industry, magnetic separation equipment has played an important role in the iron removal of some materials. The continuous innovation of magnetic separation equipment has provided more research and development possibilities for many new energy industries such as battery manufacturing, wind turbines and other industries. At present, the magnetic plate products circulating on the market are almost all arranged in the traditional simple repulsive arrangement or attractive assembly. The process is relatively stable and mature, but the amount of magnetic steel used is large, resulting in a waste of cost. The Halbach arrangement with the same magnetic concentration effect can achieve the same surface magnetic effect, or even a higher surface magnetic effect. At the same time, the amount of magnetic steel used can be greatly reduced, reducing the material cost, but the existing Halbach structure magnetic bars still have the problem of insufficient magnetic field strength and stability. Utility Model Content

[0003] The utility model provides a high surface magnetism ferromagnetic removal plate.

[0004] The technical solution adopted by the utility model to solve the above technical problems is:

[0005] A high surface magnetism iron removal plate comprises an outer shell and a side plate, wherein the outer shell comprises a shell and a cover plate, a fixed plate is arranged inside the shell, and Halbach magnets are arranged above the fixed plate, wherein the Halbach magnets comprise a first magnet, a second magnet and a third magnet, wherein the first magnet and the second magnet are of the same size, the third magnet is a flat rectangular parallelepiped, and the third magnet is arranged between the first magnet and the second magnet, the magnetic field directions of the first magnet and the second magnet are both toward the third magnet, and the magnetic field direction of the third magnet is upward, and the Halbach magnet is above a magnetic field focusing surface, the surface magnetic field strength of the magnetic field focusing surface above the outer shell is above 1.5T, and the remaining surfaces all exhibit weak magnetism.

[0006] Preferably, the side plates are welded to both ends of the outer shell, and the side plates are sealed and connected to the outer shell.

[0007] Preferably, the shell includes a bottom plate and a plate body arranged opposite to the bottom plate at the front and rear ends.

[0008] Preferably, the volume of the fixing plate and the Halbach magnet is smaller than the volume of the housing, and the gap between the housing and the fixing plate and the Halbach magnet is filled with epoxy resin.

[0009] Preferably, the shell is made of stainless steel.

[0010] Preferably, the cover plate is arranged above the Halbach magnet.

[0011] Preferably, the first magnet, the second magnet and the third magnet are provided in plurality.

[0012] Preferably, the first magnet, the second magnet, and the third magnet have the same length after being connected.

[0013] The utility model discloses a high surface magnetism ferromagnetic removal plate, by adopting a Halbach arrangement with a fixed ratio, wherein the first magnet and the second magnet are magnetized in the direction of the third magnet, and the third magnet is magnetized upward, so that the upper part of the Halbach magnet is a magnetic focusing surface with a strong surface magnetic field strength. When the Halbach magnet is placed in an outer shell, in the case of a 0.3mm stainless steel sheet in between, the surface magnetic field strength of the magnetic focusing surface above the outer shell can still reach more than 1.5T, and the remaining surfaces all show weak magnetism, thereby reducing the safety factor caused by the strong magnetism of the non-magnetic focusing surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a three-dimensional schematic diagram of a high surface magnetic ferromagnetic removal plate.

[0015] Figure 2 The utility model is an exploded schematic diagram of a high surface magnetic ferromagnetic removal plate.

[0016] Figure 3 The utility model is a schematic diagram of a Halbach magnetic plate of a high surface magnetic removal ferromagnetic plate.

[0017] Figure 4 This is an enlarged view of the magnet direction at the Halbach magnetic plate A of a high surface magnetic removal ferromagnetic plate of the utility model. DETAILED DESCRIPTION

[0018] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0019] like Figures 1 to 4 As shown, a high surface magnetic demagnetization plate includes a shell 1 and a side plate 2, wherein the side plate 2 is welded to both ends of the shell 1 and is sealed and connected to both ends of the shell 1. The shell 1 includes a shell 11 and a cover plate 12, wherein the shell 11 includes a bottom plate and a plate body arranged opposite to the bottom plate in front and behind. The shell 1 is made of stainless steel.

[0020] A fixing plate (not shown in the figure) is arranged inside the shell 11, and Halbach magnets 3 are arranged above the fixing plate. The cover plate 12 is arranged above the Halbach magnets 3. The Halbach magnets 3 include a first magnet 31, a second magnet 32 ​​and a third magnet 33. The first magnet 31 and the second magnet 32 ​​are of the same size, and the third magnet 33 is a flat rectangular parallelepiped. The third magnet 33 is arranged between the first magnet 31 and the second magnet 32. Several pieces of the first magnet 31, the second magnet 32 ​​and the third magnet 33 are respectively arranged, and the lengths of the first magnet 31, the second magnet 32 ​​and the third magnet 33 after connection are the same. The volume of the fixing plate and the Halbach magnet 3 is smaller than the volume of the shell 1, and the gap between the shell 1 and the fixing plate and the Halbach magnet 3 is filled with epoxy resin.

[0021] The first magnet 31 and the second magnet 32 ​​are magnetized in the direction of the third magnet 33, and the third magnet 33 is magnetized upward. The upper part of the Halbach magnet 3 is a magnetic focusing surface. When the Halbach magnet 3 is placed in the outer shell 1, with a 0.3mm stainless steel sheet between them, the surface magnetic field strength of the magnetic focusing surface above the outer shell 1 can still reach more than 1.5T, and the magnetic field strength is stable. The remaining surfaces all show weak magnetism, reducing the safety factors caused by strong magnetism on non-magnetic focusing surfaces. The size of the Halbach magnet 3 can be adjusted as required while ensuring that the magnetic focusing surface has a strong magnetic field. The high surface magnetic ferromagnetic removal plate is mainly used to adsorb magnetic conductive impurities in raw materials to reduce the possibility of impurities entering the next process.

[0022] The high surface magnetism ferromagnetic removal plate of the utility model adopts a Halbach arrangement with a fixed ratio, wherein the first magnet 31 and the second magnet 32 ​​are magnetized in the direction of the third magnet 33, and the third magnet 33 is magnetized upward, so that the upper part of the Halbach magnet 3 is a magnetic focusing surface with a strong surface magnetic field strength. When the Halbach magnet 3 is placed in the housing 1, in the case of a 0.3mm stainless steel sheet, the surface magnetic field strength of the magnetic focusing surface above the housing 1 can still reach more than 1.5T, and the remaining surfaces all show weak magnetism, thereby reducing the safety factor caused by the strong magnetism of the non-magnetic focusing surface.

[0023] Finally, it should be noted that the above embodiments only illustrate the technical solutions of the present invention, rather than limiting it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A high surface magnetic demagnetization plate, comprising a housing (1) and a side plate (2), wherein the housing (1) comprises a shell (11) and a cover plate (12), wherein a fixing plate is arranged inside the shell (11), and Halbach magnets (3) are arranged above the fixing plate, characterized in that: The Halbach magnet (3) comprises a first magnet (31), a second magnet (32) and a third magnet (33); the first magnet (31) and the second magnet (32) are of the same size; the third magnet (33) is a flat rectangular parallelepiped; the third magnet (33) is arranged between the first magnet (31) and the second magnet (32); the magnetic fields of the first magnet (31) and the second magnet (32) are both directed toward the third magnet (33); the magnetic field of the third magnet (33) is directed upward; the upper portion of the Halbach magnet (3) is a magnetic field focusing surface; the surface magnetic field strength of the magnetic field focusing surface above the housing (1) is above 1.5 T; and the remaining surfaces all exhibit weak magnetism.

2. A high surface magnetic removal iron magnetic plate according to claim 1, characterized in that: The side plates (2) are welded to the two ends of the outer shell (1), and the side plates (2) are sealedly connected to the outer shell (1).

3. A high surface magnetic removal iron magnetic plate according to claim 1, characterized in that: The housing (11) comprises a bottom plate and a plate body arranged opposite to the front and rear of the bottom plate.

4. A high surface magnetic removal iron magnetic plate according to claim 1, characterized in that: The volumes of the fixing plate and the Halbach magnet (3) are smaller than the volume of the housing (1), and the gaps between the housing (1), the fixing plate and the Halbach magnet (3) are filled with epoxy resin.

5. A high surface magnetic removal iron plate according to claim 1, characterized in that: The shell (1) is made of stainless steel.

6. A high surface magnetic removal iron plate according to claim 1, characterized in that: The cover plate (12) is arranged above the Halbach magnet (3).

7. A high surface magnetic removal iron plate according to claim 1, characterized in that: The first magnet (31), the second magnet (32) and the third magnet (33) are respectively provided in multiple pieces.

8. The high surface magnetic removal iron plate according to claim 1, characterized in that: The lengths of the connected first magnet (31), the second magnet (32) and the third magnet (33) are the same.

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