Magnetic separator

Abstract

The present invention discloses a magnetic separator, wherein the magnetic separator comprises a cylinder, a coil group, a magnetic pole head group and a magnetic medium, the coil group comprises a first coil and a second coil wound around the outer periphery of the cylinder and arranged in series, the first coil and the second coil are arranged at intervals to form a magnetization space; the magnetic pole head group is installed in the cylinder, the magnetic pole head group comprises a first magnetic pole head and a second magnetic pole head, the first magnetic pole head is arranged corresponding to the first coil, and the second magnetic pole head is arranged corresponding to the second coil; the first magnetic pole head and the second magnetic pole head are arranged at intervals to form a magnetic separation cavity, and the magnetic separation cavity is arranged corresponding to the magnetization space; the magnetic medium is installed in the magnetic separation cavity; the first magnetic pole head is provided with a first channel penetrating the first magnetic pole head along the axial direction of the cylinder, the second magnetic pole head is provided with a second channel penetrating the second magnetic pole head along the axial direction of the cylinder, and the first channel, the magnetic separation cavity and the second channel are connected in sequence. The present invention provides a magnetic separator with better magnetic separation effect.

Description

Technical Field

[0001] The invention relates to the technical field of magnetic separators, and in particular to a magnetic separator. Background Art

[0002] The existing counter-pole electromagnetic separators on the market usually have only one coil, and a magnetic pole head is placed inside the coil, which usually results in insufficient magnetic force. In addition, the slurry feeding method of the existing counter-pole electromagnetic separators is that the slurry flow direction is perpendicular to the magnetic circuit direction. Practical analysis shows that the magnetic separation effect of this structure is not good. Summary of the invention

[0003] The main purpose of the present invention is to propose a magnetic separator, aiming to solve the technical problem of poor magnetic separation effect of the magnetic separator.

[0004] To achieve the above-mentioned purpose, the present invention proposes a magnetic separator, comprising a cylinder, a coil group, a magnetic pole head group and a magnetic medium, wherein the coil group comprises a first coil and a second coil wound around the outer periphery of the cylinder, the first coil and the second coil are arranged in series, and the first coil and the second coil are arranged at intervals, and a magnetization space is formed between the first coil and the second coil; the magnetic pole head group is installed in the cylinder, the magnetic pole head group comprises a first magnetic pole head and a second magnetic pole head, the first magnetic pole head is arranged corresponding to the first coil, and the second magnetic pole head is arranged corresponding to the second coil; the first magnetic pole head and the second magnetic pole head are arranged at intervals, a magnetic separation cavity is formed between the first magnetic pole head and the second magnetic pole head, and the magnetic separation cavity is arranged corresponding to the magnetization space; the magnetic medium is installed in the magnetic separation cavity; the first magnetic pole head is provided with a first channel penetrating the first magnetic pole head along the axial direction of the cylinder, the second magnetic pole head is provided with a second channel penetrating the second magnetic pole head along the axial direction of the cylinder, and the first channel, the magnetic separation cavity and the second channel are connected in sequence.

[0005] Preferably, the magnetic separator has a vertical installation position. When the magnetic separator is in the vertical installation position, the axes of the first channel and the second channel are parallel to the direction of gravity, the port of the first channel forms a feed port, and the port of the second channel forms a discharge port.

[0006] Preferably, the magnetic separator also includes a shielding shell, and the cylinder and the coil group are both arranged inside the shielding shell; the shielding shell is provided with a through hole at the end face corresponding to the first magnetic pole head, and the through hole is used for the first magnetic pole head to be inserted into or pulled out of the cylinder to replace the first magnetic pole heads of different lengths.

[0007] Preferably, a flange is provided at one end of the first magnetic pole head close to the through hole, a countersunk hole is opened on the shielding shell around the through hole, a step surface is formed at the connection between the countersunk hole and the through hole, the first magnetic pole head is adapted to be inserted in the cylinder, and the flange is adapted to abut against the step surface.

[0008] Preferably, a first flare is provided at one end of the first magnetic pole head close to the second magnetic pole head, and a second flare is provided at one end of the second magnetic pole head close to the first magnetic pole head. The magnetic medium is filled between the first flare and the second flare.

[0009] Preferably, the inner wall surface of the shielding shell and the outer wall surface of the cylinder enclose a heat dissipation space, the coil group is located in the heat dissipation space, and the shell is provided with a liquid inlet for the heat dissipation fluid to flow in and a liquid outlet for the heat dissipation fluid to flow out after heat exchange.

[0010] Preferably, the magnetic separator has a horizontal installation position. When the magnetic separator is in the horizontal installation position, the axes of the first channel and the second channel are perpendicular to the direction of gravity, the port of the first channel forms a feed port, and the port of the second channel forms a discharge port.

[0011] Preferably, in the direction of gravity, the first channel is located below the second channel.

[0012] Preferably, the projection of the first channel on the end surface of the cylinder and the projection of the second channel on the end surface of the cylinder are both arranged close to the edge of the end surface of the cylinder, and the projections of the first channel and the second channel are arranged opposite to each other on the end surface of the cylinder.

[0013] Preferably, two pairs of coil plates are sleeved on the outer wall surface of the cylinder, a coil installation position is formed between the two coil plates of each pair of coil plates, and the two adjacent pairs of coil plates are arranged at intervals to form the magnetization space; the first coil and the second coil are arranged in one-to-one correspondence with the two coil installation positions.

[0014] The present invention uses a first coil and a second coil connected in series in a magnetic separator, and the first magnetic pole head and the second magnetic pole head are arranged corresponding to the first coil and the second coil, and the magnetic medium is arranged in a magnetic separation cavity formed between the first magnetic pole head and the second magnetic pole head. In this way, the magnetic field strength and direction at both ends of the magnetic medium are kept consistent, so that the magnetic force is more sufficient and the magnetic separation effect is better; at the same time, a first channel is opened along the axial direction on the first magnetic pole head, and a second channel is opened along the axial direction on the second magnetic pole head, so that the first channel, the magnetic separation cavity and the second channel are connected in sequence, so that the flow direction of the slurry is parallel to the axial direction of the first magnetic pole head and the second magnetic pole head, that is, the flow direction of the slurry is parallel to the magnetic field direction on the first magnetic pole head, the second magnetic pole head and the magnetic medium, so that the magnetic separation effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of a magnetic separator according to an embodiment of the present invention;

[0017] Figure 2 for Figure 1 Schematic diagram of magnetic circuit flow of magnetic separator;

[0018] Figure 3 It is a structural schematic diagram of another embodiment of a magnetic separator of the present invention;

[0019] Figure 4 It is a structural schematic diagram of another embodiment of a magnetic separator according to the present invention.

[0020] Description of Figure Numbers:

[0021] Label name Label name Label name 1 Cylinder 313 Flange 51 Through Hole 2 Coil assembly 314 First expansion 52 Countersunk Hole 21 First coil 32 Second pole head 53 Step surface 22 Second coil 321 Second channel 54 Liquid inlet 23 Magnetized Space 322 Discharge port 55 Liquid outlet 3 Pole head group 323 Second expansion 6 Heat dissipation space 31 First pole head 33 Magnetic separation cavity 7 Coil Plate 311 First Channel 4 Magnetic Media 71 Coil installation position 312 Feed port 5 Shielding shell

[0022] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0025] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0026] The invention provides a magnetic separator.

[0027] In the embodiment of the present invention, Figure 1 and Figure 2 As shown, the pair of magnetic separators includes a cylinder 1, a coil group 2, a magnetic pole head group 3 and a magnetic medium 4, wherein the coil group 2 includes a first coil 21 and a second coil 22 wound around the outer periphery of the cylinder 1, the first coil 21 and the second coil 22 are arranged in series, and the first coil 21 and the second coil 22 are arranged at intervals, and a magnetization space 23 is formed between the first coil 21 and the second coil 22; the magnetic pole head group 3 is installed in the cylinder 1, and the magnetic pole head group 3 includes a first magnetic pole head 31 and a second magnetic pole head 32, the first magnetic pole head 31 is arranged corresponding to the first coil 21, and the second magnetic pole head 32 is arranged corresponding to the first coil 21. 32 is arranged corresponding to the second coil 22; the first magnetic pole head 31 and the second magnetic pole head 32 are arranged at intervals, and a magnetic selection cavity 33 is formed between the first magnetic pole head 31 and the second magnetic pole head 32, and the magnetic selection cavity 33 is arranged corresponding to the magnetization space 23; the magnetic medium 4 is installed in the magnetic selection cavity 33; the first magnetic pole head 31 is provided with a first channel 311 that passes through the first magnetic pole head 31 along the axial direction of the cylinder 1, and the second magnetic pole head 32 is provided with a second channel 321 that passes through the second magnetic pole head 32 along the axial direction of the cylinder 1, and the first channel 311, the magnetic selection cavity 33 and the second channel 321 are connected in sequence.

[0028] In this embodiment, it can be understood that the first magnetic pole head 31 and the second magnetic pole head 32 are adapted and installed with the cylinder 1, the first coil 21 and the second coil 22 are arranged in series in sequence, and the first magnetic pole head 31 and the second magnetic pole head 32 are arranged corresponding to the positions of the first coil 21 and the second coil 22, and the first magnetic pole head 31 and the second magnetic pole head 32 are installed in the cylinder 1 in sequence along the axial direction of the cylinder 1. In this way, the magnetic field strength and direction generated on both sides of the magnetic pole head are consistent, and the magnetic force is more sufficient. And the first channel 311 and the second channel 321 are arranged in the first magnetic pole head 31 and the second magnetic pole head 32 so that the flow direction of the slurry is parallel to the direction of the magnetic field lines generated by the coil in the first magnetic pole head 31, the second magnetic pole head 32, and the magnetic medium 4, so that the magnetic separation effect is better.

[0029] The magnetization space 23 is set corresponding to the magnetic separation cavity 33, and the high-intensity magnetic field generated by the two energized coils can magnetize the first magnetic pole head 31 and the second magnetic pole head 32, thereby causing the magnetic medium 4 in the magnetic separation cavity 33 to generate a high magnetic field gradient. Preferably, the magnetic medium 4 is steel wool. For example, steel balls, steel balls, steel needles, etc. can be used. And the magnetization space 23 between the two coils does not affect the magnetization effect, so that fewer coils are used, thereby generating less heat, lowering the temperature, and improving the stability of the magnetic field. At the same time, it also makes the structure of the entire magnetic separator simpler and lighter.

[0030] When the first coil 21 and the second coil 22 are powered on to generate a high-intensity background magnetic field, the corresponding first magnetic pole head 31 and the second magnetic pole head 32 are magnetized, and the magnetic medium 4 generates a high magnetic field gradient. The slurry flows in through the first channel 311 or the second channel 321, and then passes through the magnetic separation chamber 33 and the magnetic medium 4 disposed in the magnetic separation chamber 33. The magnetic material is firmly adsorbed on the magnetic medium 4, and the non-magnetic material flows out through the second channel 321 or the first channel 311, completing the magnetic separation action. When each coil is powered off, the magnetic medium 4 does not generate a high magnetic field gradient, and the magnetic material is not constrained by magnetic force. At this time, clean water can be passed into the first channel 311 and the second channel 321. When the clean water flows through the magnetic medium 4, the magnetic material on the magnetic medium 4 is washed away to complete the cleaning action. Preferably, the power transmission mode of the first coil 21 and the second coil 22 is high voltage and low flow. The power transmission mode of the coil adopts a high voltage and low flow mode for transmission, which can greatly reduce the loss of the wire, so that the electromagnetic conversion continuous magnetic separator can achieve low energy consumption.

[0031] The present invention uses a first coil 21 and a second coil 22 connected in series, and the first magnetic pole head 31 and the second magnetic pole head 32 are arranged corresponding to the first coil 21 and the second coil 22, and the magnetic medium 4 is arranged in a magnetic separation cavity 33 formed between the first magnetic pole head 31 and the second magnetic pole head 32. In this way, the magnetic field strength and direction at both ends of the magnetic medium 4 are consistent, so that the magnetic force is more sufficient and the magnetic separation effect is better; at the same time, a first channel 311 is axially penetrated on the first magnetic pole head 31, and a second channel 321 is axially penetrated on the second magnetic pole head 32, so that the first channel 311, the magnetic separation cavity 33 and the second channel 321 are connected in sequence, so that the flow direction of the slurry is parallel to the axial direction of the first magnetic pole head 31 and the second magnetic pole head 32, that is, the flow direction of the slurry is parallel to the magnetic field direction on the first magnetic pole head 31, the second magnetic pole head 32 and the magnetic medium 4, so that the magnetic separation effect is better.

[0032] In a preferred embodiment, the magnetic separator has a vertical installation position. When the magnetic separator is in the vertical installation position, the axes of the first channel 311 and the second channel 321 are parallel to the direction of gravity, the port of the first channel 311 forms a feed port 312, and the port of the second channel 321 forms a discharge port 322.

[0033] In this embodiment, the pair of magnetic separators has a vertical installation position. When the pair of magnetic separators is in the vertical installation position, the pair of magnetic separators is used as a vertical magnetic separator. At this time, the axial direction of the first magnetic pole head 31 and the second magnetic pole head 32 is also parallel to the gravity direction. The slurry flows in from the feed port 312, flows through the magnetic medium 4 through the first channel 311, and the non-magnetic material flows out from the discharge port 322 of the second channel 321 after magnetic separation. Preferably, the feed port 312 is gradually expanded from the port of the first channel 311 to the outside, so that more slurry can enter the feed port 312 to improve the magnetic separation efficiency.

[0034] For further information, please refer to Figure 3 The magnetic separator also includes a shielding shell 5, in which the cylinder 1 and the coil assembly 2 are arranged; the shielding shell 5 is provided with a through hole 51 at the end surface corresponding to the first magnetic pole head 31, and the through hole 51 is used for the first magnetic pole head 31 to be inserted into or pulled out of the cylinder 1 to replace the first magnetic pole head 31 of different lengths.

[0035] In this embodiment, it can be understood that the shielding shell 5 can shield the magnetic field generated by the coil to prevent magnetic leakage. The shape of the shielding shell 5 can be cylindrical or rectangular. The shielding shell 5 can be formed by splicing several shielding plates or can be integrally formed. It only needs to have space to accommodate the cylinder 1 and the coil group 2. By replacing the first magnetic pole head 31 of different lengths, the relative position of the first magnetic pole head 31 and the second magnetic pole head 32 can be changed, so that the length of the magnetic separation cavity 33 can be variable. When a longer first magnetic pole head 31 is used, the interval between the first magnetic pole head 31 and the second magnetic pole head 32 is small, and the magnetic separation cavity 33 formed is short. When a shorter first magnetic pole head 31 is used, the interval between the first magnetic pole head 31 and the second magnetic pole head 32 is large, and the magnetic separation cavity 33 formed is long. In this way, the length of the appropriate magnetic separation cavity 33 can be selected according to the material to be magnetically separated, so that the use range of the magnetic separator is wider and the selectivity is strong. Of course, it is also possible to directly use a first magnetic pole head 31 of a certain length, and control the length of the magnetic separation cavity 33 by controlling the withdrawal length of the first magnetic pole head 31 relative to the shielding shell 5, thereby achieving the effect of magnetically separating different materials.

[0036] Furthermore, a flange 313 is provided at one end of the first magnetic pole head 31 close to the through hole 51, and a countersunk hole 52 is opened at the upper edge of the through hole 51 so that a step surface 53 is formed at the connection between the countersunk hole 52 and the through hole 51. The first magnetic pole head 31 is adapted to be inserted in the cylinder 1, and the flange 313 is adapted to abut against the step surface 53.

[0037] In this embodiment, during installation, the second magnetic pole head 32 is first inserted from the through hole 51 into the position corresponding to the second coil 22 in the cylinder 1. The second magnetic pole head 32 can be installed to the corresponding position by its own gravity or by using a tool, and then the first magnetic pole head 31 is inserted into the position corresponding to the first coil 21 in the cylinder 1 through the through hole 51 until the flange 313 on the first magnetic pole head 31 abuts against the step surface 53, and then the installation is in place. Since the flange 313 is provided on the first magnetic pole head 31, the first magnetic pole head 31 can be fixed in the installation position in the cylinder 1 without interference fit with the cylinder 1, thereby forming a magnetic selection cavity 33, simplifying the installation process and facilitating the installation and removal of the first magnetic pole head 31, thereby facilitating the replacement of the first magnetic pole head 31 of different lengths.

[0038] Furthermore, a first flared opening 314 is gradually expanded at one end of the first magnetic pole head 31 close to the second magnetic pole head 32 ; a second flared opening 323 is gradually expanded at one end of the second magnetic pole head 32 close to the first magnetic pole head 31 , and the magnetic medium 4 is filled between the first flared opening 314 and the second flared opening 323 .

[0039] In this embodiment, the first flared opening 314 opened by the first magnetic pole head 31 and the second flared opening 323 opened by the second magnetic pole head 32 make the entire magnetic pole cavity present a roughly drum-shaped cavity, so the length of the magnetic separation cavity 33 is longer and the magnetic separation effect is better. At the same time, since the first flared opening 314 is connected to the first channel 311, the slurry can be diverted through the wall surface of the first flared opening 314 after flowing into the first channel 311, so that the slurry flows through a larger area of ​​the magnetic medium 4, and thus the magnetic separation effect is better, and the second flared opening 323 can collect non-magnetic materials, and then enter the second channel 321 and flow out from the discharge port 322.

[0040] Furthermore, the inner wall of the shielding shell 5 and the outer wall of the cylinder 1 enclose a heat dissipation space 6, and the coil assembly 2 is located in the heat dissipation space 6. The shell is provided with a liquid inlet 54 for the heat dissipation fluid to flow in and a liquid outlet 55 for the heat dissipation fluid to flow out after heat exchange.

[0041] In this embodiment, it can be understood that the shielding shell 5 is a sealed shell to prevent the heat dissipation fluid from leaking out. The heat dissipation fluid is an insulating fluid used for heat exchange. There are many types of insulating fluids, as long as they have a certain specific heat capacity and are insulating; there is no need to enumerate them one by one here. Preferably, the insulating fluid is set to insulating oil. The heat dissipation fluid flows in from the liquid inlet 54, absorbs heat after passing through the coil, and flows out from the liquid outlet 55, and the cycle is repeated to cool the coil. Preferably, the liquid inlet 54 is opened at the upper end of the shielding shell 5, and the liquid outlet 55 is opened at the lower end of the shielding shell 5. This facilitates the flow of the heat dissipation fluid.

[0042] For further information, please refer to Figure 4The magnetic separator has a horizontal installation position. When the magnetic separator is in the horizontal installation position, the axes of the first channel 311 and the second channel 321 are perpendicular to the direction of gravity, the port of the first channel 311 forms a feed port 312, and the port of the second channel 321 forms a discharge port 322.

[0043] In this embodiment, the pair of magnetic separators has a horizontal installation position. When the pair of magnetic separators is in the horizontal installation position, the pair of magnetic separators is used as a horizontal magnetic separator. At this time, the axial direction of the first magnetic pole head 31 and the second magnetic pole head 32 is also perpendicular to the direction of gravity. The slurry flows in from the feed port 312, flows through the magnetic medium 4 through the first channel 311, and after magnetic separation, the non-magnetic material flows out from the discharge port 322 of the second channel 321.

[0044] It is understandable that the magnetic separator further includes a shielding shell 5, and the cylinder 1 and the coil group 2 are arranged in the shielding shell 5. The shielding shell 5 can shield the magnetic field generated by the coil to prevent magnetic leakage. The shape of the shielding shell 5 can be cylindrical or rectangular, and the shielding shell 5 can be formed by splicing several shielding plates, or it can be integrally formed, and it only needs to have space to accommodate the cylinder 1 and the coil group 2.

[0045] The inner wall surface of the shielding shell 5 and the outer wall surface of the cylinder 1 enclose a heat dissipation space 6, and the coil group 2 is located in the heat dissipation space 6. The shell is provided with a liquid inlet 54 for the heat dissipation fluid to flow in and a liquid outlet 55 for the heat dissipation fluid to flow out after heat exchange. It can be understood that the shielding shell 5 is a sealed shell to prevent the heat dissipation fluid from leaking out. The heat dissipation fluid is an insulating fluid used for heat exchange. There are many types of insulating fluids, as long as they have a certain specific heat capacity and are insulating; there is no need to enumerate them one by one here. Preferably, the insulating fluid is set to insulating oil. The heat dissipation fluid flows in from the liquid inlet 54, absorbs heat after passing through the coil, and flows out from the liquid outlet 55, and the cycle is repeated to cool the coil. Preferably, the liquid inlet 54 is opened at the upper end of the shielding shell 5, and the liquid outlet 55 is opened at the lower end of the shielding shell 5. This facilitates the flow of the heat dissipation fluid.

[0046] The present invention changes the positions of the first channel 311 and the second channel 321 relative to the direction of gravity so that the entire machine has a vertical installation position and a horizontal installation position. In this way, the machine is flexible and can select a suitable installation position according to the actual installation space size without changing the magnetic separation performance.

[0047] Furthermore, in the direction of gravity, the first channel 311 is located below the second channel 321. In this way, the horizontal height of the feed port 312 is lower than the horizontal height of the discharge port 322. When the slurry is fed, the slurry enters the first channel 311 from the feed port 312. Due to the gravity of the slurry itself, the slurry flow rate flowing through the magnetic medium 4 is larger, so that the magnetic separation effect is better. When cleaning, clean water flows into and cleans the magnetic medium 4 from the second channel 321. The clean water washes away the magnetic material on the magnetic medium and is discharged from the first channel 311 together with the magnetic material. The gravity and impact of the clean water are conducive to flushing the magnetic material on the magnetic medium 4, and the magnetic material can also fall by its own gravity, which is more conducive to the discharge of the magnetic material from the first channel 311. Of course, the position of the first channel 311 on the horizontal plane can also be made equal to the position of the second channel 321 on the horizontal plane.

[0048] Furthermore, the projection of the first channel 311 on the end surface of the cylinder 1 and the projection of the second channel 321 on the end surface of the cylinder 1 are both arranged close to the edge of the end surface of the cylinder 1, and the projections of the first channel 311 and the second channel 321 are arranged opposite to each other on the end surface of the cylinder 1.

[0049] In this embodiment, the first channel 311 and the second channel are both connected to the magnetic separation chamber 33, so that the projections of the first channel 311 and the second channel 321 are relatively arranged on the end face of the cylinder 1, and are both arranged close to the edge of the end face of the cylinder 1, so that the path of the slurry flowing through the magnetic medium 4 is longer, thereby making the magnetic separation effect of the entire magnetic separator better.

[0050] Preferably, when the magnetic separator is in a horizontal installation position, the shielding shell 5 is provided with a through hole on the end surface corresponding to the second magnetic pole head 32, and the through hole allows the second magnetic pole head 32 to be inserted into or pulled out of the cylinder 1, so as to replace the second magnetic pole head 32 of different lengths. In this way, the length of the magnetic separation cavity 33 can be controlled by replacing the first magnetic pole head 31 and the second magnetic pole head 32 of different lengths, so that the length control of the magnetic separation cavity 33 is more convenient and the selectivity is higher. At the same time, it is more convenient to operate and more flexible.

[0051] Furthermore, two pairs of coil plates 7 are sleeved on the outer wall surface of the cylinder 1, and a coil mounting position 71 is formed between the two coil plates 7 of each pair of coil plates 7, and the two adjacent pairs of coil plates 7 are spaced apart to form a magnetization space 23; the first coil 21 and the second coil 22 are arranged in one-to-one correspondence with the two coil mounting positions 71.

[0052] In this embodiment, the coil plate 7 can be integrally provided with the cylinder 1, or can be sleeved on the outer wall of the cylinder 1 by welding or the like. The coil plate 7 is provided to define the coil installation position 71, so that the two coils are firstly wound on the cylinder 1 corresponding to the position of the coil installation position 71, and when installing, it is only necessary to directly install the entire cylinder 1 into the shielding shell 5, thereby simplifying the processing and installation process and reducing the processing cost.

[0053] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A magnetic separator, characterized in that: include: Cylinder; The coil group includes a first coil and a second coil wound around the outer periphery of the cylinder, the first coil and the second coil are arranged in series, and the first coil and the second coil are arranged at an interval, and a magnetization space is formed between the first coil and the second coil; A magnetic pole head group is installed in the cylinder, the magnetic pole head group includes a first magnetic pole head and a second magnetic pole head, the first magnetic pole head is arranged corresponding to the first coil, and the second magnetic pole head is arranged corresponding to the second coil; the first magnetic pole head and the second magnetic pole head are arranged at intervals, a magnetic selection cavity is formed between the first magnetic pole head and the second magnetic pole head, and the magnetic selection cavity is arranged corresponding to the magnetization space; as well as A magnetic medium is installed in the magnetic separation cavity; the first magnetic pole head is provided with a first channel penetrating the first magnetic pole head along the axial direction of the cylinder, the second magnetic pole head is provided with a second channel penetrating the second magnetic pole head along the axial direction of the cylinder, and the first channel, the magnetic separation cavity and the second channel are connected in sequence; The magnetic separator further comprises a shielding shell, wherein the cylinder and the coil assembly are both arranged in the shielding shell; the shielding shell is provided with a through hole at the end surface corresponding to the first magnetic pole head, and the through hole is used for the first magnetic pole head to be inserted into or pulled out of the cylinder, so as to replace the first magnetic pole head of different lengths; A flange is provided at one end of the first magnetic pole head close to the through hole, a countersunk hole is provided on the shielding shell around the through hole, a step surface is formed at the connection between the countersunk hole and the through hole, the first magnetic pole head is adapted to be inserted in the cylinder, and the flange is adapted to abut against the step surface; A first flared opening is provided at one end of the first magnetic pole head close to the second magnetic pole head, and a second flared opening is provided at one end of the second magnetic pole head close to the first magnetic pole head. The magnetic medium is filled between the first flared opening and the second flared opening.

2. The magnetic separator according to claim 1, characterized in that: The magnetic separator has a vertical installation position. When the magnetic separator is in the vertical installation position, the axes of the first channel and the second channel are parallel to the direction of gravity, the port of the first channel forms a feed port, and the port of the second channel forms a discharge port.

3. The magnetic separator according to claim 2, characterized in that: The inner wall surface of the shielding shell and the outer wall surface of the cylinder enclose a heat dissipation space, the coil group is located in the heat dissipation space, and the shielding shell is provided with a liquid inlet for the heat dissipation fluid to flow in and a liquid outlet for the heat dissipation fluid to flow out after heat exchange.

4. The magnetic separator according to claim 1, characterized in that: The magnetic separator has a horizontal installation position. When the magnetic separator is in the horizontal installation position, the axes of the first channel and the second channel are perpendicular to the direction of gravity, the port of the first channel forms a feed port, and the port of the second channel forms a discharge port.

5. The magnetic separator according to claim 4, characterized in that: In the direction of gravity, the first channel is located below the second channel.

6. The magnetic separator according to claim 4, characterized in that: The projection of the first channel on the end surface of the cylinder and the projection of the second channel on the end surface of the cylinder are both arranged close to the edge of the end surface of the cylinder, and the projections of the first channel and the second channel are arranged opposite to each other on the end surface of the cylinder.

7. The magnetic separator according to any one of claims 1 to 6, characterized in that: Two pairs of coil plates are sleeved on the outer wall surface of the cylinder, a coil installation position is formed between the two coil plates of each pair of coil plates, and the two adjacent pairs of coil plates are arranged at intervals to form the magnetization space; the first coil and the second coil are arranged in one-to-one correspondence with the two coil installation positions.

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