CN115910517A - Low-remanence halbach array magnetic adsorption separation device - Google Patents
Low-remanence halbach array magnetic adsorption separation device Download PDFInfo
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- CN115910517A CN115910517A CN202211460776.2A CN202211460776A CN115910517A CN 115910517 A CN115910517 A CN 115910517A CN 202211460776 A CN202211460776 A CN 202211460776A CN 115910517 A CN115910517 A CN 115910517A
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Abstract
The invention provides a low-remanence halbach array magnetic adsorption separation device which comprises a magnetic ring, wherein the magnetic ring comprises a left half ring and a right half ring which jointly enclose a circular adsorption separation region, the left half ring and the right half ring comprise a plurality of magnets surrounding the adsorption separation region, and a magnetic line extension line of a magnet, which is attached to a line of the left half ring and the right half ring and has an included angle of 45 degrees, passes through the center of the adsorption separation region. Compared with the prior art, the magnetic ring structure is improved, so that a magnetic field with high strength and good uniformity can be formed in the adsorption separation area when the magnetic ring is closed, and the adsorption separation efficiency is high. When the magnetic ring is opened, the completeness of magnetic pole arrangement at two sides can be broken, the residual magnetism between the left half ring and the right half ring is reduced, and the working efficiency of next period separation is ensured.
Description
Technical Field
The invention belongs to the technical field of magnetic field adsorption separation, and particularly relates to a low-remanence halbach array magnetic adsorption separation device.
Background
With the rapid development of industries such as bioengineering, life science and the like, the magnetic field adsorption separation technology is widely applied in the field of biotechnology due to the advantages of strong processing capacity, simple and reliable equipment, cleanness, energy conservation and the like.
In the prior art, in order to obtain high-efficiency and quick adsorption speed, the optimization design is carried out by selecting a high-performance magnet, increasing the volume of the magnet, reducing the gap between the magnet and an adsorbed object and the like.
The defects of the prior art are that the optimization space is limited by the mode, and the effect of improving the adsorption speed is not great. And the existing magnetic field adsorption separation technology has the problem that the residual magnetism in a medium in a non-separation state (the magnetic ring is opened) is larger, so that the working efficiency of the next period of separation is influenced.
Disclosure of Invention
Technical problem to be solved
Based on the technical scheme, the invention provides the low-remanence halbach array magnetic adsorption separation device, which aims to solve the technical problem that the existing magnetic adsorption separation device is large in remanence in a non-separation state.
(II) technical scheme
In order to solve the technical problem, the invention provides a low-remanence halbach array magnetic adsorption separation device which comprises a magnetic ring, wherein the magnetic ring comprises a left half ring and a right half ring which jointly enclose a circular adsorption separation region, the left half ring and the right half ring comprise a plurality of magnets surrounding the adsorption separation region, and a magnetic line extension line of a magnet, which forms an included angle of 45 degrees with a joint line of the left half ring and the right half ring, passes through the center of the adsorption separation region.
Preferably, a plurality of the magnets are uniformly arranged around the adsorptive separation zone.
Preferably, n dividing lines passing through the circle center of the adsorption separation region and not passing through the joint line of the left half ring and the right half ring equally divide the magnetic ring into 2n regions, wherein n is more than or equal to 2, the magnets on two sides of each dividing line are symmetrically arranged, and at least one part of the magnets in the 2n regions is located in the region of the left half ring and the rest part of the magnets in the region of the right half ring.
Preferably, n =2; the left half ring and the right half ring joint line form an included angle A with one dividing line, and A =45 degrees.
Preferably, the rotation direction of any one of the magnets with respect to the magnet adjacent thereto is the same, and the rotation angle of any one of the magnets with respect to the magnet adjacent thereto is 30 °.
Preferably, the left half ring comprises a left half support and a left half magnetic yoke arranged around the left half support, and part of the magnet is arranged between the left half support and the left half magnetic yoke.
Preferably, the right half ring comprises a right half support and a right half magnetic yoke arranged around the right half support, and the rest part of the magnet is arranged between the right half support and the right half magnetic yoke.
Preferably, the left half support and the right half support enclose into a circular ring shape together, and the left half magnetic yoke and the right half magnetic yoke enclose into a circular ring shape together.
Preferably, the left and right half yokes are made of stainless steel material.
Preferably, the low residual magnetism halbach array magnetic adsorption separation device further comprises a reactor for containing liquid medicine and magnetic beads, and the magnetic ring is arranged around the reactor.
(III) advantageous effects
Compared with the prior art, the low-remanence halbach array magnetic adsorption separation device has the following advantages:
according to the invention, through improving the structure of the magnetic ring, a magnetic field with high strength and good uniformity can be formed in the adsorption separation area when the magnetic ring is closed, and the adsorption separation efficiency is high. When the magnetic ring is opened, the completeness of magnetic pole arrangement at two sides can be broken, the residual magnetism between the left half ring and the right half ring is reduced, and the working efficiency of next period separation is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a first general structural diagram (closed state) of the present invention.
Fig. 2 is a schematic view of the overall structure of the present invention (in an open state).
Fig. 3 is a magnetic force diagram of the closed state of the magnetic ring of the present invention.
Fig. 4 is a magnetic force diagram (non-operating state) of the magnetic ring of the present invention in an open state.
Fig. 5 is a magnetic force diagram of a magnetic ring with a symmetrical structure in a closed state.
Fig. 6 is a magnetic force diagram (non-working state) of a magnetic ring with a symmetrical structure in an open state.
Description of reference numerals:
1. magnetic ring, 2, adsorption separation area, 3, left semi-ring, 4, right semi-ring, 5, magnet, 6, parting line, 7, left half support, 8, left half magnetic yoke, 9, right half support, 10, right half magnetic yoke.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.
The low remanence halbach array magnetic adsorption separation device of the present invention is further described with reference to fig. 1-6.
Referring to fig. 1-2, the invention discloses a low remanence halbach array magnetic force adsorption separation device, which comprises a magnetic ring 1, wherein the magnetic ring 1 comprises a left half ring 3 and a right half ring 4 which jointly enclose a circular adsorption separation region 2, the left half ring 3 and the right half ring 4 comprise a plurality of magnets 5 which surround the adsorption separation region 2, and the extension line of the magnetic force line of the magnet 5, which forms an included angle of 45 degrees with the joint line of the left half ring 3 and the right half ring 4, passes through the center of the adsorption separation region 2.
The above explanation of "the extended line of the magnetic lines of force of the magnet 5 having an angle of 45 ° with the line along which the left half ring 3 and the right half ring 4 are fitted passes through the center of the adsorption separation region 2" is specifically as follows: the joint line of the left half ring 3 and the right half ring 4 is set as L1, a magnet exists in the magnetic ring 1, the extension line of the magnetic line of the magnet passes through the center of the adsorption separation area 2, and the included angle between the extension line of the magnetic line of the magnet 5 and the L1 is 45 degrees.
The following compares the effect of the magnetic ring 1 of the present invention with that of the magnetic ring with the existing symmetric structure, specifically as follows: referring to fig. 5, the left and right half rings of the magnetic ring shown in the figure are of a symmetrical structure, and two magnetic poles are uniformly distributed on both sides of the ring, as shown in fig. 6, after the magnetic ring is opened, the magnetic force lines are more seriously spread to the middle position (middle circle region) of the left and right half rings.
Referring to fig. 3-4, the magnet ring 1 of the embodiment of the present invention, with respect to the magnet ring with a symmetrical structure, rotates the whole magnet 5 around a circle by 45 °, one of the two side magnets 5 is located at the central axis, the other 2 poles are divided into two poles, magnetic lines of force are concentrated at the positions of the two side magnets 5, and the spreading situation is significantly reduced towards the position of the middle (central circle region) between the left half ring 3 and the right half ring 4.
As can be seen, in the present embodiment, the magnetic ring 1 with this structure can ensure that a magnetic field with high strength and good uniformity is formed in the adsorption separation region 2 when the magnetic ring 1 is closed (see fig. 3), and the adsorption separation efficiency is high. When the magnetic ring 1 is opened (see figure 4), the integrity of the magnetic pole arrangement at two sides can be broken, the residual magnetism between the left half ring 3 and the right half ring 4 is reduced, and the working efficiency of the next period separation is ensured. In the present invention, the term "remanence" refers to a magnetic field in the adsorption separation region 2 when the left half ring 3 and the right half ring 4 are opened.
According to an embodiment of the invention, a plurality of magnets 5 are arranged uniformly around the adsorptive separation zone 2.
In this embodiment, this structure is advantageous for further improving the uniformity of the magnetic field in the adsorption separation region 2 when the magnetic ring 1 is closed.
According to the specific embodiment of the invention, n dividing lines 6 passing through the circle center of the adsorption separation region 2 and not passing through the joint line of the left half ring 3 and the right half ring 4 equally divide the magnetic ring 1 into 2n regions, wherein n is more than or equal to 2, the magnets 5 on both sides of each dividing line 6 are symmetrically arranged, and in the 2n regions, at least one part of the magnets 5 is positioned in the left half ring 3, and the rest part of the magnets 5 is positioned in the right half ring 4.
In the present embodiment, "there is at least one partial magnet 5 in the region of the left half ring 3 and the remaining partial magnet 5 in the region of the right half ring 4" means: at least one such region exists and is characterized by: part of the magnet 5 is located on the left half-ring 3 and the remaining part of the magnet 5 is located on the right half-ring 4. In the present embodiment, the line of the left half ring 3 and the right half ring 4 is a straight line passing through the center of the adsorption separation region 2, that is: the central angle corresponding to the left half ring 3 is 180 degrees, and the central angle corresponding to the right half ring 4 is 180 degrees. All the magnets 5 are divided into 2n regions by at least n division lines 6, each region corresponding to a central angle of (360/2 n) °.
By adopting the structure, when the magnetic ring 1 is opened, the left half ring 3 or the right half ring 4 at least comprises 1 complete area and 2 incomplete areas, and by adopting the structure, the remanence of a separation area can be effectively reduced, and the working efficiency of magnetic separation in the next period is improved.
According to a particular embodiment of the invention, n =2; the bonding line makes an angle a with one of the dividing lines 6, a =45 °. In the present embodiment, the magnetic ring 1 is equally divided into 4 regions by 2 dividing lines 6, and the number of divided regions is the smallest. The structure is relatively simple and easy to manufacture.
According to the embodiment of the present invention, the rotation angle of any one magnet 5 with respect to the previous magnet 5 adjacent thereto is the same and is not equal to zero, and the rotation direction of any one magnet 5 with respect to the previous magnet 5 adjacent thereto is the same.
More specifically, the rotation direction of any one magnet 5 with respect to the magnet 5 adjacent thereto is the same, and the rotation angle of any one magnet 5 with respect to the magnet 5 adjacent thereto is 30 °.
In this embodiment, with this structure, the magnetic body 5 structure of the halbach array is formed, and a small number of magnetic bodies 5 can be used to generate a strong magnetic field, thereby increasing the magnetic field intensity in the adsorption and separation region 2 when the magnetic ring 1 is closed, and facilitating further improvement of the efficiency of adsorption and separation.
In the present embodiment, the rotation angle of any one magnet 5 with respect to the magnet 5 adjacent thereto is related to the total number of magnets 5, and it is necessary to satisfy the requirement that "the extension line of the magnetic line of force of one magnet 5 having an angle of 45 ° with the line where the left half ring 3 and the right half ring 4 are fitted passes through the center of the adsorption separation region 2".
According to an embodiment of the invention, the left half-ring 3 comprises a left half-support 7 and a left half-yoke 8 arranged around the left half-support 7, the partial magnet 5 being arranged between the left half-support 7 and the left half-yoke 8.
More specifically, the right half ring 4 includes a right half holder 9 and a right half yoke 10 disposed around the right half holder 9, and the remaining part magnet 5 is disposed between the right half holder 9 and the right half yoke 10. The left half support 7 and the right half support 9 jointly enclose a circular ring shape, and the left half magnet yoke 8 and the right half magnet yoke 10 jointly enclose a circular ring shape. The left and right yokes halves 8 and 10 are made of stainless steel material. The low-residual-magnetism halbach array magnetic adsorption separation device further comprises a reactor for containing liquid medicine and magnetic beads, and the magnetic ring 1 is arranged around the reactor. The magnetic ring 1 is used for carrying out magnetic adsorption separation on the liquid medicine contained in the reactor.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; the connection may be mechanical, electrical, direct, indirect through an intermediate medium, or internal communication between two elements, or "transmission connection", i.e., power connection through various suitable manners such as belt transmission, gear transmission, or sprocket transmission. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
Claims (10)
1. The magnetic force adsorption separation device with the low remanence halbach array is characterized by comprising a magnetic ring (1), wherein the magnetic ring (1) comprises a left half ring (3) and a right half ring (4) which jointly enclose a circular adsorption separation region (2), the left half ring (3) and the right half ring (4) comprise a plurality of magnets (5) surrounding the adsorption separation region (2), and an extension line of a magnet, which forms an included angle of 45 degrees with a joint line of the left half ring (3) and the right half ring (4), passes through the center of a magnetic force line of the adsorption separation region (2).
2. The low remanence halbach array magnetic adsorptive separation device according to claim 1, wherein a plurality of said magnets (5) are uniformly arranged around said adsorptive separation zone (2).
3. The low remanence halbach array magnetic force adsorption separation device of claim 2, characterized in that n dividing lines (6) passing through the center of the adsorption separation region (2) and not passing through the joint line of the left half ring (3) and the right half ring (4) equally divide the magnetic ring (1) into 2n regions, wherein n is larger than or equal to 2, the magnets (5) on both sides of each dividing line (6) are symmetrically arranged, and of the 2n regions, at least one part of the magnets (5) is located in the left half ring (3) and the rest of the magnets is located in the region of the right half ring (4).
4. The low residual magnetism halbach array magnetic adsorption separation device of claim 2 wherein n =2; the left half ring (3) and the right half ring (4) are attached to the parting line, the included angle between the parting line and the parting line (6) is A, and A =45 degrees.
5. The low residual magnetism halbach array magnetic force adsorption separation device of claim 4, characterized in that the rotation direction of any one of the magnets (5) with respect to the previous magnet (5) adjacent thereto is the same, and the rotation angle of any one of the magnets (5) with respect to the previous magnet (5) adjacent thereto is 30 °.
6. The low residual magnetism halbach array magnetic force adsorption separation device of claim 5, characterized in that the left half-ring (3) comprises a left half-seat (7) and a left half-yoke (8) arranged around the left half-seat (7), part of the magnet (5) being arranged between the left half-seat (7) and the left half-yoke (8).
7. The low residual magnetism halbach array magnetic force adsorption separation device of claim 6, characterized in that the right half-ring (4) comprises a right half-holder (9) and a right half-yoke (10) disposed around the right half-holder (9), the remaining part of the magnet (5) being disposed between the right half-holder (9) and the right half-yoke (10).
8. The low residual magnetism halbach array magnetic force adsorption separation device of claim 7, characterized in that the left half support (7) and the right half support (9) together enclose a circular ring shape, and the left half magnetic yoke (8) and the right half magnetic yoke (10) together enclose a circular ring shape.
9. The low residual magnetism halbach array magnetic force adsorption separation device of claim 8, characterized in that the left half yoke (8) and the right half yoke (10) are both made of stainless steel material.
10. The low residual magnetism halbach array magnetic adsorption separation device of claim 9, wherein the low residual magnetism halbach array magnetic adsorption separation device further comprises a reactor for containing liquid medicine and magnetic beads, and the magnetic ring (1) is arranged around the reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211460776.2A CN115910517A (en) | 2022-11-17 | 2022-11-17 | Low-remanence halbach array magnetic adsorption separation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211460776.2A CN115910517A (en) | 2022-11-17 | 2022-11-17 | Low-remanence halbach array magnetic adsorption separation device |
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| Publication Number | Publication Date |
|---|---|
| CN115910517A true CN115910517A (en) | 2023-04-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211460776.2A Pending CN115910517A (en) | 2022-11-17 | 2022-11-17 | Low-remanence halbach array magnetic adsorption separation device |
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| CN (1) | CN115910517A (en) |
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- 2022-11-17 CN CN202211460776.2A patent/CN115910517A/en active Pending
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