Magnetic bar and magnetic bar group thereof

Abstract

The invention discloses a magnetic rod and a magnetic rod group, and relates to a filtering device, the magnetic rod group comprises a magnetic core group and an outer wrapping body wrapping the magnetic rod group, the magnetic core group comprises a plurality of magnetic cores arranged longitudinally, the two end faces of each magnetic core are inclined planes and are parallel to each other, and the inclination angles of the end faces of the adjacent magnetic cores are consistent. Compared with the prior art, according to the technical scheme, by improving the magnetic core structure and the arrangement mode, the uniformity of magnetic field distribution is remarkably improved, and the technical problems that a traditional magnetic rod is uneven in magnetic field distribution and remarkable in magnetic leakage phenomenon are successfully solved.

Description

Technical Field

[0001] The invention relates to a filtering device, in particular to an iron impurity filtering device. Background Art

[0002] Magnetic bars are primarily used to filter various fine powders, liquids, and semi-liquids containing iron and other magnetic substances. They are widely used in the (lithium battery) chemical industry, food, waste recycling, carbon black, and other fields. In industrial iron removal equipment, magnetic bars serve as core functional components, and the uniformity of their magnetic field distribution directly affects the efficiency of capturing ferromagnetic impurities. A magnetic bar consists of an inner magnetic core and an outer cladding. The core, in turn, consists of a cylindrical magnet block and a magnetic conductive sheet. A good magnetic bar should have a uniform spatial distribution of magnetic induction lines, with the points of maximum magnetic induction intensity distributed throughout the entire bar as much as possible.

[0003] However, the existing magnetic core group structure in the magnetic bar has a natural defect. When the magnetic cores in the magnetic bar are arranged longitudinally, the strongest point of the magnetic field strength is near the magnetic conductive sheet, that is, the magnetic field strength of the entire magnetic bar is a sine curve. Figure 1 shown. Figure 1 This is the theoretical magnetic field intensity distribution function diagram of an existing magnetic bar with a length of 30mm and a capacity of 10000GS. Figure 1 As we all know, the magnetic field strength on the magnetic bar is uneven. Observing from the surface of the magnetic bar, the magnetic field strength in different areas of the magnetic bar is different. It is high strength near the magnetic plate and the magnetic plate, and low strength away from the magnetic plate. The farther away from the magnetic plate, the stronger the magnetic field strength. Figure 2 and Figure 3 shown. Figure 2 This is the simulation analysis diagram of the existing magnetic rod in Simcenter 3D Magnet software. Figure 2 In the figure, the magnetic field intensity gradually increases from blue to red, with blue being the lowest and red being the lowest. Figure 3 This is the simulation analysis diagram of the existing magnetic rod group under Simcenter 3D Magnet software. Figure 3 It can be seen that the existing magnetic rod group has a weak magnetic channel no matter how many layers of groups it has, and impurities will inevitably leak through it in terms of probability. Summary of the Invention

[0004] In response to the deficiencies in the prior art, the present invention provides a magnetic rod. By improving the magnetic core structure and arrangement, the present application significantly improves the uniformity of the magnetic field distribution, eliminates the leakage magnetic area existing in traditional magnetic rods, and is suitable for high-precision magnetic field control scenarios.

[0005] In order to solve the above technical problems, the present invention solves them through the following technical solutions: a magnetic rod, comprising a magnetic core group and an outer body wrapping the magnetic rod group, the magnetic core group comprising a plurality of magnetic cores arranged longitudinally, the two end faces of the magnetic cores being inclined surfaces and parallel to each other, and the inclination angles of the adjacent end faces of the magnetic cores being consistent.

[0006] In the above technical solution, preferably, a magnetic conductive sheet is provided between the magnetic cores, and two end faces of the magnetic conductive sheet are inclined surfaces and the inclination angle is consistent with the inclination angle of the end faces of the magnetic cores.

[0007] In the above technical solution, preferably, the magnetic core is in close contact with the magnetic conductive sheet.

[0008] In the above technical solution, preferably, the end face of the magnetic core is elliptical, the cross section of the magnetic core is circular, and the longitudinal section of the magnetic core is rhombus.

[0009] In the above technical solution, preferably, the end face of the magnetic conductive sheet is elliptical, the cross section of the magnetic conductive sheet is circular, and the longitudinal section of the magnetic conductive sheet is rhombus.

[0010] In the above technical solution, preferably, adapter cores are further provided at both ends of the magnetic core group, one end face of the adapter core has an inclination angle that matches the end face of the magnetic core, and the other end face is adapted to the outer body.

[0011] In the above technical solution, preferably, the magnetic core and the magnetic conductive sheet are both provided with through holes, and the fixing rod passes through the through holes to fix the adapter core, the magnetic core and the magnetic conductive sheet in connection.

[0012] In the above technical solution, preferably, the magnetic core group and the outer body are tightly fitted.

[0013] In the above technical solution, preferably, the outer package is cylindrical.

[0014] In the above technical solution, preferably, the inclination angles of the end faces of the magnetic core and the magnetic conductive sheet are both 45°.

[0015] A magnetic bar assembly, comprising a plurality of magnetic bars as claimed in any one of claims 1 to 9, combined in a horizontal or vertical direction or in both a horizontal and vertical direction.

[0016] Traditional magnetic bars are usually composed of stacked magnetic cores, and their magnetic field distribution is easily affected by the arrangement of the magnetic cores, resulting in discontinuity or divergence of magnetic flux lines at the junction, forming local magnetic leakage areas. In response to the above technical problems, this application changes the direction of the magnetic field by using multi-level magnetic cores with inclined end faces, magnetic conductive sheets, adapter cores and other components to offset the magnetic field strength on the magnetic bar, changing the original vertical magnetic field strength of the magnetic bar to an inclined direction, thereby expanding the effective area of the magnetic field strength on the magnetic bar. Figure 4 and Figure 5The optimal inclination angle of the core's tilted end face is 45°. When the inclination angle is 45°, the magnetic field intensity is fully covered in the projection of the longitudinal section. Of course, the specific inclination angle can be set according to actual conditions and is between 0° and 90°.

[0017] Figure 4 This is the simulation analysis diagram of the magnetic rod in Simcenter 3D Magnet software. Figure 4 In the figure, the magnetic field strength gradually increases from blue to red, with blue being the lowest and red being the lowest. Figure 4 It can be seen that the red area with the strongest magnetic field intensity on the magnetic bar has changed from the original vertical direction to the oblique direction. From the longitudinal cross-sectional projection, the theoretically strong magnetic area covers the entire magnetic bar. Figure 5 This is the simulation analysis diagram of the magnetic rod group in Simcenter 3D Magnet software. Figure 5 It can be seen that the magnetic rod group of the present application completely eliminates the weak magnetic channel. In theory, two layers of magnetic rod groups can completely cover all filtering areas.

[0018] This application uses a longitudinally arranged magnetic core group as the core bearing unit, and each magnetic core unit is provided with a 45° precision inclined end face at both ends. Through strict control of the inclination angle consistency, a continuous gradient magnetic circuit is formed. Compared with the traditional plane contact, the unique elliptical end face design effectively increases the magnetic permeability area by more than 30%, and the geometric combination of the circular cross section and the diamond longitudinal section realizes the balanced conduction of the three-dimensional magnetic field. The adapter core structure adopts a dual-state end face design, with the inner 45° inclination angle precisely meshing with the magnetic core group, and the outer curvature matching the cylindrical outer body. Combined with the through-hole fixing rod structure, the overall structural rigidity is ensured, and the stability of the magnetic field under vibration conditions is guaranteed.

[0019] Compared with the existing technology, the technical solution of this application significantly improves the uniformity of magnetic field distribution by improving the magnetic core structure and arrangement, and successfully solves the technical problems of uneven magnetic field distribution and significant magnetic leakage in traditional magnetic bars. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a graph showing the theoretical magnetic field intensity distribution function of an existing magnetic bar with a length of 30 mm (300) and a strength of 10,000 GS.

[0021] Figure 2 This is a simulation analysis diagram of an existing magnetic rod using Simcenter 3D Magnet software.

[0022] Figure 3 This is a simulation analysis diagram of the existing magnetic rod group using Simcenter 3D Magnet software.

[0023] Figure 4This is a simulation analysis diagram of the magnetic rod of the present invention using Simcenter 3D Magnet software.

[0024] Figure 5 This is a simulation analysis diagram of the magnetic rod group of the present invention using Simcenter 3D Magnet software.

[0025] Figure 6 Schematic diagram of the magnetic core group structure of the present invention.

[0026] Figure 7 This is a schematic cross-sectional view of the magnetic bar taken along line BB of the present invention.

[0027] Figure 8 This is a schematic cross-sectional view of the magnetic rod according to the present invention taken along line AA. DETAILED DESCRIPTION

[0028] The following will provide a clear and complete description of the technical solutions of various embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments described in the present invention, all other embodiments derived by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Example 1, as Figures 6 to 8 As shown: A magnetic rod, comprising a magnetic core group and an outer body 5 that wraps the magnetic rod group, the magnetic core group and the outer body 5 being tightly fitted, and the outer body 5 being cylindrical. The magnetic core group comprises a plurality of magnetic cores 1 arranged longitudinally, the two end faces of the magnetic cores 1 being inclined and parallel to each other, and the inclination angles of the end faces of adjacent magnetic cores 1 being consistent. A magnetic conductive sheet 2 is arranged between the magnetic cores 1, the two end faces of the magnetic conductive sheet 2 being inclined, and the inclination angles being consistent with the inclination angles of the end faces of the magnetic cores 1. The magnetic core 1 and the magnetic conductive sheet 2 are tightly fitted. The end face of the magnetic core 1 is elliptical, the cross section of the magnetic core 1 is circular, and the longitudinal section of the magnetic core 1 is rhombus-shaped. The end face of the magnetic conductive sheet 2 is elliptical, the cross section of the magnetic conductive sheet 2 is circular, and the longitudinal section of the magnetic conductive sheet 2 is rhombus-shaped. Both the magnetic core 1 and the magnetic conductive sheet 2 are provided with through holes 3, and a fixing rod passes through the through holes 3 to securely connect the adapter core 1, the magnetic core 2, and the magnetic conductive sheet 4. The two ends of the magnetic core group are further provided with an adapter core 4, one end face of which has an inclination matching the end face of the magnetic core 1, and the other end face of which is adapted to the outer body 5. The inclination angles of the end faces of the magnetic core and the magnetic conductive sheet are both 45°.

[0030] A magnetic bar group comprises a plurality of magnetic bars which are combined in a horizontal or vertical direction or in a horizontal and vertical direction.

[0031] Example 2, as Figures 6 to 8The figure shows a magnetic rod comprising a magnetic core group and an outer casing 5 encasing the magnetic rod group. The magnetic core group and the outer casing 5 are tightly fitted, and the outer casing 5 is cylindrical. The magnetic core group includes a plurality of magnetic cores 1 arranged longitudinally, each having two inclined and parallel end faces. The end faces of adjacent magnetic cores 1 have the same inclination angle. A magnetic conductive sheet 2 is disposed between the magnetic cores 1. The magnetic conductive sheet 2 has two inclined end faces with an inclination angle consistent with the inclination angle of the end faces of the magnetic cores 1. The magnetic cores 1 and the magnetic conductive sheet 2 are tightly fitted. The end faces of the magnetic cores 1 are elliptical, the cross-section of the magnetic cores 1 is circular, and the longitudinal section of the magnetic cores 1 is rhombus-shaped. The end faces of the magnetic conductive sheet 2 are elliptical, the cross-section of the magnetic conductive sheet 2 is circular, and the longitudinal section of the magnetic cores 1 is rhombus-shaped. Adaptive cores 4 are also disposed at both ends of the magnetic core group. One end face of the adaptive core 4 has an inclination angle that matches the end face of the magnetic core 1, and the other end face is adapted to the outer casing 5. The inclination angles of the end faces of the magnetic core and the magnetic conductive sheet are both 45°.

[0032] A magnetic bar group comprises a plurality of magnetic bars which are combined in a horizontal or vertical direction or in a horizontal and vertical direction.

Claims

1. A magnetic bar, comprising a magnetic core group and an outer body wrapping the magnetic bar group, characterized in that: The magnetic core group includes a plurality of magnetic cores arranged longitudinally, two end faces of the magnetic cores are inclined surfaces and are parallel to each other, and the inclination angles of the end faces of adjacent magnetic cores are consistent.

2. A magnetic bar according to claim 1, characterized in that: A magnetic conductive sheet is arranged between the magnetic cores. Two end surfaces of the magnetic conductive sheet are inclined surfaces, and the inclination angle is consistent with the inclination angle of the end surface of the magnetic core.

3. A magnetic bar according to claim 2, characterized in that: The magnetic core is in close contact with the magnetic conductive sheet.

4. A magnetic bar according to claim 1 or 2, characterized in that: The end face of the magnetic core is elliptical, the cross section of the magnetic core is circular, and the longitudinal section of the magnetic core is rhombus.

5. A magnetic bar according to claim 1 or 2, characterized in that: The end surface of the magnetic conductive sheet is elliptical, the cross section of the magnetic conductive sheet is circular, and the longitudinal section of the magnetic conductive sheet is rhombus-shaped.

6. A magnetic bar according to claim 1 or 2, characterized in that: Adaptive cores are further provided at both ends of the magnetic core group. One end face of the adaptive core has an inclination angle that matches the end face of the magnetic core, and the other end face is adapted to the outer body.

7. The magnetic bar according to claim 6, characterized in that: The magnetic core and the magnetic conductive sheet are both provided with through holes, and the fixing rod passes through the through holes to fix the adapting core, the magnetic core and the magnetic conductive sheet together.

8. A magnetic bar according to claim 1 or 2, characterized in that: The magnetic core group and the outer body are tightly fitted.

9. A magnetic bar according to claim 1 or 2, characterized in that: The outer package is cylindrical.

10. A magnetic bar assembly, characterized in that: A plurality of magnetic bars as claimed in any one of claims 1 to 9 are combined in a horizontal or vertical direction or in a horizontal and vertical direction.

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