Pipe-type self-cooled electromagnetic iron separator

Abstract

This utility model relates to the field of iron separator technology, specifically to a tubular self-cooling electromagnetic iron separator, comprising a magnetic core with several magnetic side rings wound around it. A set of heat-conducting pipes is installed between each pair of adjacent magnetic side rings. The magnetic core has a central heat-conducting hole. The first end of the heat-conducting pipe passes through the magnetic core and communicates with the central heat-conducting hole. A magnetic sealing plate is fixedly installed on the magnetic core, and a magnetic pole plate is fixedly installed at the bottom. A support plate is installed between the magnetic pole plate and the lowest magnetic side ring. A magnetic side ring is fixedly installed at the bottom of the magnetic sealing plate. The magnetic core and the magnetic side rings are both located inside the magnetic side rings. The second end of the heat-conducting pipe passes through the magnetic side rings and communicates with the outside. This utility model effectively prevents heat accumulation after the magnetic side rings are energized by designing a three-stage heat dissipation structure consisting of a central heat-conducting hole, hollow heat-conducting pipes, and outer heat sinks.

Description

Technical Field

[0001] This utility model relates to the field of iron separator technology, specifically to a tubular self-cooling electromagnetic iron separator. Background Technology

[0002] In material handling and processing operations in coal, building materials, and power industries, self-unloading magnetic separators have become crucial iron removal equipment to prevent iron impurities mixed in with materials from causing mechanical wear on subsequent crushing and grinding equipment or affecting the purity of the final product. Automatic iron detection devices, as their core functional component, need to achieve accurate detection and reliable adsorption of iron impurities through a stable magnetic field; their performance directly determines the overall iron removal effect. Currently, most mainstream tubular self-cooling electromagnetic separators are designed based on the principle of electromagnetic induction. They typically involve winding an electromagnetic coil around a magnetic core, generating a magnetic field by energizing the coil to adsorb iron. However, in practical applications, the electromagnetic coil continuously generates heat due to the current heating effect after being energized. Existing devices have significant deficiencies in their heat dissipation design: most rely solely on natural heat dissipation from the component surface or use only a single, inefficient heat dissipation channel, failing to quickly dissipate the heat generated around the electromagnetic coil and magnetic core, leading to heat accumulation inside the device. As heat accumulates, the operating temperature of the electromagnetic coil continuously rises, triggering a chain reaction of increased coil resistance and current attenuation, ultimately weakening the magnetic field strength generated by the device. Such magnetic field fluctuations not only cause frequent problems such as missed iron impurities or insufficient adsorption force in iron removal operations, making it difficult to maintain stable iron removal efficiency and meet the reliability requirements of continuous production, but also accelerate the aging of the insulation layer of the electromagnetic coil due to long-term high temperature environment, shorten the service life of the device, and increase the frequency and cost of equipment maintenance. Utility Model Content

[0003] To overcome the shortcomings of existing technologies, this utility model provides a tubular self-cooling electromagnetic separator, specifically achieved through the following technical solution: A tubular self-cooling electromagnetic separator includes a magnetic core with several magnetic side rings wound around it. A set of heat-conducting pipes is installed between each pair of adjacent magnetic coils. The magnetic core has a central heat-conducting hole. The first end of the heat-conducting pipe passes through the magnetic core and communicates with the central heat-conducting hole. A magnetic sealing plate is fixedly installed on the magnetic core, and a magnetic pole plate is fixedly installed at the bottom. A support plate is installed between the magnetic pole plate and the lowest magnetic coil. A magnetic side ring is fixedly installed at the bottom of the magnetic sealing plate. The magnetic core and the magnetic coil are both located inside the magnetic side ring. The second end of the heat-conducting pipe passes through the magnetic side ring and communicates with the outside.

[0004] The magnetic sealing plate, magnetic pole plate, and support plate are all provided with heat dissipation holes that communicate with the central heat conduction hole.

[0005] A magnetic sealing sub-plate is fixedly installed on the top of the magnetic sealing plate, and the magnetic sealing sub-plate has heat dissipation holes that communicate with the central heat conduction hole.

[0006] Several heat sinks are fixedly installed on the outer wall of the magnetic side ring.

[0007] The length direction of the heat sink is the same as the height direction of the magnetic side ring.

[0008] A junction box is installed on the top of the magnetic sealing sub-plate, and the junction box is electrically connected to the magnetic coil.

[0009] The technical solution of this utility model has the following advantages: This invention employs a three-stage heat dissipation structure—a central heat-conducting hole, a hollow heat-conducting pipe, and an outer heat sink—to effectively prevent heat accumulation in the magnetically conductive side coil after energization. This fundamentally overcomes the vicious cycle of high coil temperature, increased resistance, current attenuation, and weakened magnetic field inherent in existing technologies. This invention can control the operating temperature of the magnetically conductive side coil within a reasonable range, ensuring that the coil resistance and current consistently maintain their design values. This, in turn, guarantees a stable magnetic field strength throughout the iron removal process, preventing issues such as missed iron removal or insufficient adsorption due to magnetic field fluctuations, and improving the consistency of iron removal efficiency.

[0010] The central heat-conducting hole, which is opened along the height direction in the middle of the magnetic core, can directly absorb the heat generated by the magnetic core and the surrounding coils. At the same time, the hollow heat-conducting tube set between the adjacent magnetic side rings has its first end penetrating through the magnetic core and communicating with the central heat-conducting hole, and its second end extending to the through hole of the magnetic side ring and communicating with the outside. This forms a fast internal heat dissipation channel from the central heat-conducting hole and the heat-conducting tube to the outside, ensuring that the heat generated by the coil is not retained.

[0011] The long strip-shaped heat sinks evenly distributed on the outer wall of the magnetic side ring greatly increase the contact area between the device and the air. Combined with the heat dissipation from the heat pipe, it achieves bidirectional synergy of conduction inside the pipe and heat dissipation outside the fins, reducing the operating temperature of the magnetic side ring. Furthermore, the through holes and heat sinks are spaced apart to avoid heat accumulation in local areas, further improving the uniformity of heat dissipation.

[0012] The magnetic sealing plate, magnetic sealing sub-plate, support plate, and magnetic pole plate are all equipped with heat dissipation holes that match the central heat conduction hole, ensuring that heat can be conducted through the magnetic components along the axis without any heat dissipation dead zones. Attached Figure Description

[0013] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the internal structure of the present invention; Figure 2 This is a side view of the present invention; In the diagram, 1-junction box, 2-magnetic seal sub-plate, 3-magnetic seal plate, 4-intermediate heat conduction hole, 5-magnetic core, 6-heat conduction pipe, 7-magnetic coil, 8-heat sink, 9-magnetic pole plate, 10-support plate, 11-magnetic side ring, 12-through hole. Detailed Implementation

[0015] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0016] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the module or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0019] As attached Figure 1 and attached Figure 2 As shown, this utility model provides a tubular self-cooling electromagnetic iron separator, with a magnetic core 5, and a magnetic sealing plate 3 and a magnetic sealing sub-plate 2 fixedly installed on the top of the magnetic core 5 in sequence, wherein the magnetic sealing sub-plate 2 is located on top of the magnetic sealing plate 3.

[0020] In the middle of the magnetic core 5, a central heat conduction hole 4 is provided along the height direction of the magnetic core 5, and heat dissipation holes are provided on the magnetic sealing plate 3 and the magnetic sealing sub-plate 2.

[0021] Several magnetic coils 7 are wound around the magnetic core 5. A set of heat pipes 6 is installed between each pair of adjacent magnetic coils 7.

[0022] Each set of heat pipes 6 includes multiple heat pipes 6.

[0023] The heat pipe 6 has a hollow structure, with its first end inserted into the magnetic core 5 and connected to the middle heat-conducting hole 4.

[0024] The second end of the heat pipe 6 extends beyond the magnetic coil 7.

[0025] A magnetic side ring 11 is fixedly installed at the bottom of the magnetic sealing plate 3, and the magnetic core 5 and the magnetic coil 7 are both located inside the magnetic side ring 11.

[0026] A gap is left between the magnetic coil 7 and the inner wall of the magnetic side ring 11.

[0027] Several heat sinks 8 are fixedly installed on the outer wall of the magnetic side ring 11. The heat sinks 8 are long strips, and their length direction is consistent with the height direction of the magnetic side ring 11.

[0028] Several heat sinks 8 are evenly distributed around the sidewall of the magnetic side ring 11.

[0029] A magnetic pole plate 9 is also fixedly installed at the bottom of the magnetic core 5.

[0030] A support plate 10 is installed between the magnetic pole plate 9 and the bottommost magnetic coil 7.

[0031] A gap is left between the side wall of the magnetic pole plate 9 and the inner wall of the magnetic conductive side ring 11.

[0032] The side wall of the tray 10 abuts against the inner wall of the magnetic side ring 11.

[0033] Both the magnetic pole plate 9 and the support plate 10 are provided with heat dissipation holes that match the central heat conduction hole 4.

[0034] The axes of the heat dissipation holes all coincide with the axis of the central heat conduction hole 4, and all are connected to the central heat conduction hole 4.

[0035] The magnetic side ring 11 has through holes 12 that correspond one-to-one with the heat pipes 6. The second end of the heat pipe 6 extends into the through hole 12 and passes through the through hole 12.

[0036] The second end of the heat pipe 6 can be inserted into the through hole 12, or it can be fixed by means of interference fit or other methods.

[0037] Both ends of the heat pipe 6 are open.

[0038] The through hole 12 is spaced apart from the heat sink 8.

[0039] A junction box 1 is installed on the top of the magnetic sealing sub-plate 2, and the junction box 1 is electrically connected to the magnetic coil 7.

[0040] The entire device is used as an electromagnetic separator. An electromagnetic separator generates a magnetic field by energizing an electromagnetic coil. This magnetic field can attract iron from the material, thus completing the iron removal process.

[0041] When an electromagnetic coil is energized, it generates high temperatures. These high temperatures increase the resistance of the electromagnetic coil, decrease the current, and weaken the magnetic field.

[0042] The electromagnetic coil is wound into several magnetic coils 7. A certain number of heat pipes 6 are placed between two adjacent magnetic coils 7. The heat pipes connect the magnetic side ring 11 and the magnetic core 5, and connect the middle heat pipe 4 to the external environment. The heat generated by the middle heat pipe 4 and the coil is discharged through the heat pipes, reducing the heat of the magnetic coil and maintaining the magnetic field of the iron remover.

[0043] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A tubular self-cooling electromagnetic separator, characterized in that: The device includes a magnetic core (5), on which several magnetic coils (7) are wound. A set of heat pipes (6) is installed between each pair of adjacent magnetic coils (7). The magnetic core (5) has a central heat-conducting hole (4). The first end of the heat pipe (6) passes through the magnetic core (5) and communicates with the central heat-conducting hole (4). A magnetic sealing plate (3) is fixedly installed on the magnetic core (5), and a magnetic pole plate (9) is fixedly installed at the bottom. A support plate (10) is installed between the magnetic pole plate (9) and the lowest magnetic coil (7). A magnetic side ring (11) is fixedly installed at the bottom of the magnetic sealing plate (3). The magnetic core (5) and the magnetic coils (7) are both located inside the magnetic side ring (11). The second end of the heat pipe (6) passes through the magnetic side ring (11) and communicates with the outside.

2. The tubular self-cooling electromagnetic separator according to claim 1, characterized in that: The magnetic sealing plate (3), magnetic pole plate (9) and support plate (10) are all provided with heat dissipation holes that communicate with the intermediate heat conduction hole (4).

3. The tubular self-cooling electromagnetic separator according to claim 2, characterized in that: A magnetic sealing sub-plate (2) is fixedly installed on the top of the magnetic sealing plate (3), and a heat dissipation hole communicating with the intermediate heat conduction hole (4) is opened on the magnetic sealing sub-plate (2).

4. The tubular self-cooling electromagnetic separator according to claim 3, characterized in that: Several heat sinks (8) are fixedly installed on the outer wall of the magnetic side ring (11).

5. The tubular self-cooling electromagnetic separator according to claim 4, characterized in that: The length direction of the heat sink (8) is the same as the height direction of the magnetic side ring (11).

6. The tubular self-cooling electromagnetic separator according to claim 5, characterized in that: A junction box (1) is installed on the top of the magnetic sealing sub-plate (2), and the junction box (1) is electrically connected to the magnetic coil (7).

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