Iron removal equipment

Abstract

The utility model provides iron removal equipment. The iron removal equipment comprises a rack, an iron removal barrel, an excitation structure, a magnetic induction piece and a magnetic gathering piece. And the iron removal cylinder is mounted in the rack. The excitation structure is arranged on the peripheral side of the iron removal barrel in a surrounding mode. The magnetic induction piece is arranged in the iron removal barrel. The magnetism gathering piece is fixedly connected to the rack and located on at least one end side of the iron removal barrel. When the excitation structure generates a magnetic field, the magnetic gathering piece can attract and gather the magnetic field scattered by the excitation structure, the magnetic field intensity at the end of the iron removal barrel is enhanced, the magnetic field intensity in the iron removal barrel and the uniformity of the magnetic field are improved, and therefore the magnetic field intensity induced by the magnetic induction piece is improved; and the magnetic gathering part is borne through the rack, so that the weight of the magnetic gathering part can be prevented from being transmitted to the iron removal barrel, the iron removal barrel is prevented from deforming under the gravity of the magnetic gathering part, and the operation reliability of the iron removal equipment is improved.

Description

Technical Field

[0001] This application relates to the field of slurry iron removal technology, and in particular to an iron removal device. Background Technology

[0002] In the production of lithium batteries, it is crucial to avoid the contamination of the battery slurry with metallic foreign objects. These foreign objects can easily lead to problems such as self-discharge, internal short circuits, and separator punctures, and may even cause the battery to burn or explode. Iron removal equipment is used to remove metallic foreign objects from the battery slurry. In related technologies, to enhance the adsorption capacity of the magnetic sensing element of the iron removal equipment for metallic foreign objects, the current intensity of the excitation structure is typically increased to improve the generated magnetic field strength, or the number of winding layers or turns of the excitation structure is increased while keeping the current intensity constant. However, this significantly increases the power consumption and heat dissipation costs of the iron removal equipment, as well as its overall weight and manufacturing cost. Therefore, traditional iron removal equipment suffers from the problem of difficulty in improving the adsorption capacity of the magnetic sensing element. Utility Model Content

[0003] This application provides an iron removal device to solve the problem of difficulty in improving the adsorption capacity of magnetic sensing elements.

[0004] This application provides an iron removal device, which includes a frame, an iron removal cylinder, an excitation structure, a magnetic sensing element, and a magnetic focusing element. The iron removal cylinder is installed in the frame. The excitation structure surrounds the outer periphery of the iron removal cylinder. The magnetic sensing element is disposed inside the iron removal cylinder. The magnetic focusing element is fixedly connected to the frame and located at at least one end of the iron removal cylinder.

[0005] In some embodiments, the magnetic focusing element has a first mating surface on the side facing the magnetic sensing element, and the distance between the portion of the first mating surface away from the peripheral wall of the iron removal cylinder and the magnetic sensing element is greater than or equal to the distance between the portion of the first mating surface near the peripheral wall of the iron removal cylinder and the magnetic sensing element.

[0006] In some embodiments, the iron removal cylinder is provided with a second mating surface that matches the shape of the first mating surface, and the second mating surface is disposed opposite to the first mating surface.

[0007] In some embodiments, the frame includes a body and a cover. The body has a receiving cavity, and the iron removal cylinder and the excitation structure are respectively located in the receiving cavity. The cover seals the body. The magnetic focusing element is located on the side of the iron removal cylinder near the cover and is fixedly connected to the cover. Alternatively, the magnetic focusing element is located on the side of the iron removal cylinder away from the cover and is fixedly connected to the body. Alternatively, there are two magnetic focusing elements, one of which is located on the side of the iron removal cylinder near the cover and is fixedly connected to the cover, and the other is located on the side of the iron removal cylinder away from the cover and is fixedly connected to the body.

[0008] In some embodiments, the iron removal cylinder includes a cylinder body and a cover body. The cylinder body includes a side plate and an end plate. The end plate is connected to the side plate and forms an iron removal cavity with the side plate. The magnetic sensing element is located inside the iron removal cavity. The cover body is detachably sealed to the end of the side plate away from the end plate.

[0009] In some embodiments, the magnetic focusing element is isolated from the iron removal cavity.

[0010] In some embodiments, the cover includes a first cover portion and a second cover portion, the first cover portion being located inside the iron removal chamber, the second cover portion being connected to the side of the first cover portion away from the iron removal chamber, the second cover portion being used for fixed connection with the frame, the first cover portion and the second cover portion forming a mounting groove, the mounting groove being isolated from the iron removal chamber, and the magnetic focusing element being disposed in the mounting groove.

[0011] In some embodiments, the magnetic focusing element is disposed on the side of the end plate away from the iron removal cavity, and the magnetic focusing element is located outside the iron removal cavity.

[0012] In some embodiments, the iron removal cylinder further includes a sealing element disposed between the cover and the side plate.

[0013] In some embodiments, multiple magnetic sensing elements are provided, the excitation structure encloses an excitation cavity, the iron removal cylinder passes through the excitation cavity, and the multiple magnetic sensing elements are located at positions on the iron removal cylinder corresponding to the excitation cavity.

[0014] In the iron removal equipment provided in this application, the magnetic focusing component is fixedly connected to the frame and located at at least one end of the iron removal cylinder. When the excitation structure generates a magnetic field, the magnetic focusing component can attract and concentrate the magnetic field scattered by the excitation structure, enhance the magnetic field strength at the end of the iron removal cylinder, and improve the magnetic field strength and uniformity inside the iron removal cylinder. This increases the magnetic field strength induced on the magnetic sensing component, improves the magnetic sensing component's ability to adsorb metallic foreign objects in the battery slurry, and prevents the weight of the magnetic focusing component from being transmitted to the iron removal cylinder by the frame, thus preventing the iron removal cylinder from deforming under the gravity of the magnetic focusing component and improving the operational reliability of the iron removal equipment. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a cross-sectional view of the iron removal equipment provided in the embodiments of this application.

[0017] Figure 2 This is a schematic diagram of the structure of the cover provided in the embodiment of this application.

[0018] Figure 3 This is a cross-sectional view of the magnetic magnet and the cover provided in the embodiments of this application.

[0019] Figure 4 This is a cross-sectional view of the magnetic agglomerator provided in some embodiments of this application.

[0020] Figure 5 This is a cross-sectional view of the magnetic magnet provided in some other embodiments of this application.

[0021] Explanation of main reference numerals in the attached drawings: Iron removal equipment 1000; frame 10; accommodating cavity 101; body 11; cover 12; iron removal cylinder 20; iron removal chamber 201; second mating surface 202; cylinder 21; side plate 211; end plate 212; mounting part 213; cover 22; first cover 221; mounting groove 2210; second cover 222; connecting hole 2221; pipe part 223; sealing element 23; first pipe body 241; second pipe body 242; excitation structure 30; excitation chamber 301; magnetic sensing element 40; magnetic focusing element 50; first mating surface 501; clearance hole 502.

[0022] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0024] In this document, references to "embodiment" or "implementation" mean that a particular feature, structure, or characteristic described in connection with an embodiment or implementation may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0025] It should be noted that the terminology in the specification, claims, and accompanying drawings of this application is only for describing specific embodiments and is not intended to limit this application. The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order.

[0026] Please see Figure 1 , Figure 1 This is a cross-sectional view of the iron removal device 1000 provided in this application embodiment. The iron removal device 1000 is used to remove metallic foreign matter from battery slurry. It should be understood that the term "iron removal" in this application embodiment does not refer solely to metallic iron, but rather to ferromagnetic metals, such as iron, cobalt, nickel and their alloys, oxides, and other ferromagnetic metals. In addition to removing iron from battery slurry, the iron removal device 1000 provided in this application embodiment can also be used to remove iron from slurries and materials in industries such as ceramics, energy, and chemicals.

[0027] The iron removal equipment 1000 includes a frame 10, an iron removal cylinder 20, an excitation structure 30, a magnetic sensing element 40, and a magnetic focusing element 50. The iron removal cylinder 20 is installed in the frame 10. The iron removal cylinder 20 is used to contain battery slurry. The excitation structure 30 surrounds the outer periphery of the iron removal cylinder 20. The magnetic sensing element 40 is disposed inside the iron removal cylinder 20. When the excitation structure 30 is energized to generate a magnetic field, the magnetic sensing element 40 is magnetized in the magnetic field, thereby adsorbing ferromagnetic metallic foreign objects in the battery slurry. The magnetic focusing element 50 is fixedly connected to the frame 10 and located at at least one end of the iron removal cylinder 20. In this embodiment, the magnetic focusing component 50 is fixedly connected to the frame 10 and located at at least one end of the iron removal cylinder 20. When the excitation structure 30 is energized to generate a magnetic field, the magnetic focusing component 50 can attract and concentrate the magnetic field scattered by the excitation structure 30, enhance the magnetic field strength at the end of the iron removal cylinder 20, and improve the magnetic field strength and uniformity inside the iron removal cylinder 20. This improves the magnetic field strength induced on the magnetic sensing component 40, enhances the adsorption capacity of the magnetic sensing component 40 for metallic foreign objects in the battery slurry, and prevents the weight of the magnetic focusing component 50 from being transmitted to the iron removal cylinder 20 by the frame 10. This prevents the iron removal cylinder 20 from deforming under the gravity of the magnetic focusing component 50, and improves the operational reliability of the iron removal equipment 1000.

[0028] Both the magnetic focusing element 50 and the magnetic sensing element 40 can be made of materials with good magnetic permeability. This is beneficial for improving the magnetic guiding ability of the magnetic focusing element 50, thereby improving the magnetic focusing effect, increasing the magnetic field strength inside the iron removal cylinder 20, reducing the hysteresis loss of the magnetic focusing element 50, and improving the energy transmission efficiency. It also increases the magnetic field strength at the induction point of the magnetic sensing element 40, thereby improving the adsorption capacity of the magnetic sensing element 40, reducing its hysteresis loss, and improving the energy transmission efficiency. The iron removal cylinder 20 can be made of materials with low magnetic permeability to avoid generating a magnetic field and preventing the adsorption of foreign objects.

[0029] The magnetic permeability of the focusing element 50 can be greater than that of the inductive element 40. Thus, when the excitation structure 30 generates a magnetic field, the focusing element 50 is more easily magnetized. The focusing element 50 can attract and concentrate the magnetic field radiating from the end of the excitation structure 30, thereby enhancing the magnetic field strength at the end of the iron removal cylinder 20 and facilitating the concentration of the magnetic field on the inductive element 40. In some embodiments, the magnetic permeability of the focusing element 50 can also be equal to that of the inductive element 40. The magnetic permeabilities of the inductive element 40 and the focusing element 50 can be specifically set according to actual needs, and are not specifically limited in this application.

[0030] Please refer to the following: Figure 1 , Figure 2 and Figure 3 , Figure 2 This is a schematic diagram of the structure of the cover 22 provided in the embodiment of this application. Figure 3This is a cross-sectional view of the magnetic focusing component 50 and the cover 22 provided in this embodiment. The surface of the magnetic focusing component 50 facing the magnetic sensing component 40 is recessed in a direction away from the magnetic sensing component 40. A first mating surface 501 is provided on the side of the magnetic focusing component 50 facing the magnetic sensing component 40. The distance between the portion of the first mating surface 501 away from the peripheral wall of the iron removal cylinder 20 and the magnetic sensing component 40 is greater than or equal to the distance between the portion of the first mating surface 501 close to the peripheral wall of the iron removal cylinder 20 and the magnetic sensing component 40. The first mating surface 501 provided in the magnetic focusing component 50 can, on the one hand, prevent battery slurry from accumulating in the iron removal cylinder 20, allowing the battery slurry to flow out of the iron removal cylinder 20 in a timely manner. On the other hand, the first mating surface 501 can also concentrate the magnetic field, increase the magnetic field strength at the location of the magnetic sensing component 40, and improve the uniformity of the magnetic field distribution in the iron removal cylinder 20.

[0031] In this embodiment, the first mating surface 501 can be configured as a conical surface, and the distance between the portion of the first mating surface 501 away from the peripheral wall of the iron removal cylinder 20 and the magnetic sensing element 40 is greater than the distance between the portion of the first mating surface 501 near the peripheral wall of the iron removal cylinder 20 and the magnetic sensing element 40. In some embodiments, the first mating surface 501 can be configured as a plane, and the distance between the portion of the first mating surface 501 away from the peripheral wall of the iron removal cylinder 20 and the magnetic sensing element 40 is equal to the distance between the portion of the first mating surface 501 near the peripheral wall of the iron removal cylinder 20 and the magnetic sensing element 40.

[0032] The first mating surface 501 can be a smooth surface. For example, the first mating surface 501 can be constructed as a conical surface to facilitate the machining of the magnetizing element 50 and reduce machining difficulty. The shape of the first mating surface 501 can correspond to the shape of the side surface of a frustum. Along the direction away from the magnetizing element 40 from the magnetizing element 50, the diameter of the first mating surface 501 decreases linearly.

[0033] Please see Figure 4 , Figure 4 This is a cross-sectional view of the magnetic focusing element 50 provided in some embodiments of this application. In some embodiments, the first mating surface 501 may also be constructed as an arc surface, and the shape of the first mating surface 501 may be spherical. Along the direction of the magnetic focusing element 50 away from the magnetic sensing element 40, the diameter of the first mating surface 501 decreases non-linearly.

[0034] In some embodiments, the first mating surface 501 may also be configured as a pyramidal surface, the shape of which corresponds to the shape of the side surface of the frustum.

[0035] Please see Figure 5 , Figure 5 This is a cross-sectional view of the magnetic focusing element 50 provided in other embodiments of this application. In some embodiments, the first mating surface 501 may also be configured as a stepped surface. In some embodiments, the first mating surface 501 may also be configured as other shapes, which are not specifically limited in this application.

[0036] Please refer to the following: Figure 1 and Figure 3 The iron removal cylinder 20 is provided with a second mating surface 202 that matches the shape of the first mating surface 501. The second mating surface 202 is arranged opposite to the first mating surface 501. By providing the second mating surface 202, the iron removal cylinder 20 has several advantages. First, the second mating surface 202 can guide the battery slurry, preventing it from accumulating in the iron removal cylinder 20 and allowing it to flow out quickly. Second, it can reduce the gap between the magnetic focusing element 50 and the iron removal cylinder 20, thereby reducing the air gap's obstruction of the magnetic field and facilitating the magnetic field transmission from the magnetic focusing element 50 to the interior of the iron removal cylinder 20, thus improving the magnetic field strength and uniformity inside the iron removal cylinder 20. Third, it can improve the space utilization of the iron removal equipment 1000, making its structure more compact. When the first mating surface 501 is a conical surface, the second mating surface 202 is correspondingly set as a conical surface. When the first mating surface 501 is set as a plane, the second mating surface 202 is set as a plane accordingly.

[0037] The frame 10 includes a body 11 and a cover 12. The body 11 has a receiving cavity 101. The iron removal cylinder 20 and the excitation structure 30 are located within the receiving cavity 101. The cover 12 has a through hole through which the iron removal cylinder 20 passes. The cover 12 covers the body 11 to seal the receiving cavity 101. The cover 12 and the body 11 can be sealed together. A cooling medium can be provided in the receiving cavity 101 to dissipate heat from the excitation structure 30.

[0038] For example, the magnetic focusing element 50 can be located on the side of the iron removal cylinder 20 near the cover 12 and is used to be fixedly connected to the cover 12. In this way, by having the cover 12 support the magnetic focusing element 50, the weight of the magnetic focusing element 50 can be prevented from acting on the iron removal cylinder 20, thus avoiding compression of the iron removal cylinder 20 and causing deformation.

[0039] For example, the magnetic focusing component 50 can be located on the side of the iron removal cylinder 20 away from the cover 12 and fixedly connected to the body 11. In this way, by having the body 11 support the magnetic focusing component 50, the weight of the magnetic focusing component 50 can be prevented from acting on the iron removal cylinder 20, thus preventing deformation and damage to the iron removal cylinder 20. The magnetic focusing component 50 and the body 11 can be fixedly connected together by welding, bonding, snap-fitting, screwing, or other methods.

[0040] In this embodiment, two magnetic focusing components 50 are configured. One magnetic focusing component 50 is located on the side of the iron removal cylinder 20 near the cover 12 and is fixedly connected to the cover 12. The other magnetic focusing component 50 is located on the side of the iron removal cylinder 20 away from the cover 12 and is fixedly connected to the body 11. In this way, the body 11 and the cover 12 support the two magnetic focusing components 50 respectively, which can prevent the weight of the magnetic focusing component 50 from acting on the iron removal cylinder 20. Moreover, the two magnetic focusing components 50 can concentrate the magnetic field at both ends of the iron removal cylinder 20, so that the magnetic field is fully concentrated inside the iron removal cylinder 20, improving the utilization rate of the magnetic field and improving the working efficiency of the iron removal equipment 1000.

[0041] The iron removal cylinder 20 includes a cylinder body 21 and a cover body 22. An iron removal chamber 201 is provided within the cylinder body 21. The iron removal chamber 201 is used to hold the battery slurry. The cylinder body 21 passes through a through hole in the cover body 12. The cylinder body 21 includes a side plate 211 and an end plate 212. The side plate 211 is generally cylindrical. The end plate 212 is connected to the end of the side plate 211 away from the cover body 12, and together with the side plate 211, forms the iron removal chamber 201. The magnetic sensing element 40 is located within the iron removal chamber 201.

[0042] The cover 22 is detachably sealed to the end of the side plate 211 away from the end plate 212. The cover 22 is exposed outside the receiving cavity 101 to facilitate opening or closing. During the iron removal operation of the iron removal equipment 1000, the cover 22 is sealed to the side plate 211. After the iron removal equipment 1000 has completed the iron removal, the magnetic sensing element 40 can be cleaned by separating the cover 22 from the side plate 211, removing any metal foreign objects adsorbed on the magnetic sensing element 40, or the magnetic sensing element 40 can be maintained or replaced.

[0043] In this embodiment, the magnetic focusing component 50 is isolated from the iron removal cavity 201. The magnetic focusing component 50 is located outside the iron removal cavity 201, thereby preventing contact between the magnetic focusing component 50 and the battery slurry in the iron removal cavity 201 and avoiding the introduction of metallic / magnetic contaminants into the battery slurry. The magnetic focusing component 50 is located outside the iron removal cavity 201, or other components of the magnetic focusing component 50 are enclosed, achieving isolation from the iron removal cavity 201 through these components. In this embodiment, the magnetic focusing component 50 is disposed within the cover 22, isolating it from the iron removal cavity 201. The cover 22 is provided with a second mating surface 202. The magnetic focusing component 50 is disposed on the side of the end plate 212 away from the iron removal cavity 201, isolating it from the iron removal cavity 201. The surface of the end plate 212 facing away from the iron removal cavity 201 is configured as the second mating surface 202. The end plate 212 is generally conical in shape.

[0044] The cover 22 includes a first cover portion 221 and a second cover portion 222. The first cover portion 221 is located inside the iron removal cavity 201. The second cover portion 222 is connected to the side of the first cover portion 221 away from the iron removal cavity 201 and is located outside the iron removal cavity 201. The second cover portion 222 is used for fixed connection with the cover 12 of the frame 10. The first cover portion 221 and the second cover portion 222 enclose and form a mounting groove 2210. The mounting groove 2210 is isolated from the iron removal cavity 201. The magnetic focusing element 50 is disposed in the mounting groove 2210 and is fixed to the cover 12 by the cover 22. In this way, the first cover portion 221 extends into the iron removal cavity 201, which can reduce the distance between the magnetic focusing element 50 and the magnetic sensing element 40, which is beneficial to increase the magnetic field strength near the magnetic sensing element 40, so that the magnetic sensing element 40 has greater magnetism after being magnetized, thereby improving the adsorption capacity of the magnetic sensing element 40 for metallic foreign objects.

[0045] The first cover 221 and the second cover 222 can be fixedly connected together by welding, snap-fitting, fusion welding, or other methods. The second cover 222 and the cover 12 can be detachably fixed together by snap-fit ​​structure, bolt structure, or other methods. When the cover 22 is closed, the second cover 222 can be located on the side of the cover 12 away from the receiving cavity 101 to facilitate the opening or closing of the cover 22.

[0046] In some embodiments, a connecting hole 2221 is provided on the second cover portion 222, and the connecting hole 2221 penetrates through the second cover portion 222. The connecting hole 2221 may penetrate through the peripheral sidewall of the second cover portion 222. In some embodiments, the connecting hole 2221 may not penetrate through the peripheral sidewall of the second cover portion 222. The iron removal device 1000 may include a fastener. The fastener passes through the connecting hole 2221 and is used to detachably and securely connect the second cover portion 222 to the machine cover 12. Exemplarily, the fastener may be configured as a bolt. In some embodiments, the fastener may also be configured as a hook, etc.

[0047] The first mating surface 501 is located on the side of the magnetic attracting member 50 away from the second cover portion 222. The first cover portion 221 is tapered on the side near the magnetic sensing member 40, and the surface of the first cover portion 221 near the first mating surface 501 is configured as the second mating surface 202. The magnetic attracting member 50 and the cover 22 can be fixedly connected together to prevent the magnetic attracting member 50 from separating from the cover 22 when the cover 22 is opened or closed, which simplifies the operation process of opening or closing the cover 22 and reduces the difficulty of operation.

[0048] In some embodiments, in addition to the iron cylinder 20, a sealing element 23 is also included. The sealing element 23 is disposed between the cover 22 and the side plate 211. The cylinder 21 may include a mounting portion 213 located at the end of the side plate 211 away from the end plate 212. The mounting portion 213 is disposed around the side of the side plate 211 opposite to the magnetic sensing element 40 and is fixedly connected to the side plate 211. The mounting portion 213 and the side plate 211 may be integrally formed, or they may be separately disposed and fixedly connected together by welding, bonding, snap-fitting, screwing, or other methods. A groove may be provided on the side of the mounting portion 213 away from the end plate 212, and the sealing element 23 is disposed within the groove. The sealing element 23 may be configured as a sealing ring, a sealing block, or the like.

[0049] In some embodiments, the seal 23 may be located on the end face of the side plate 211 away from the end plate 212. In some embodiments, the seal 23 may be located on the inner side of the side plate 211 near the magnetic sensing element 40, and at the end of the inner side away from the end plate 212.

[0050] Multiple magnetic sensing elements 40 are configured. These multiple magnetic sensing elements 40 are arranged at intervals along the extending direction of the iron removal chamber 201. The excitation structure 30 encloses and forms the excitation chamber 301, and the iron removal cylinder 20 passes through the excitation chamber 301. The multiple magnetic sensing elements 40 are located at positions on the iron removal cylinder 20 corresponding to the excitation chamber 301, thereby facilitating the effective magnetization of all magnetic sensing elements 40 and avoiding the problem of insufficient magnetization of some magnetic sensing elements 40. By configuring multiple magnetic sensing elements 40, the iron removal equipment 1000 can fully adsorb and remove metallic foreign matter in the battery slurry, improving the iron removal effect on the battery slurry.

[0051] The iron removal equipment 1000 also includes a first tube 241 and a second tube 242. The magnetic focusing element 50 is provided with a clearance hole 502. The end plate 212 is provided with a first opening. The first tube 241 passes through the clearance hole 502 of the magnetic focusing element 50 near the end plate 212 and communicates with the first opening. The first tube 241 is connected to the iron removal chamber 201 through the first opening. The cover 22 is provided with a second opening. The first cover 221 is provided with a pipe portion 223 whose shape matches the clearance hole 502. The pipe portion 223, the first cover 221, and the second cover 222 together form a mounting groove 2210. The pipe portion 223 passes through the clearance hole 502 of the magnetic focusing element 50 near the cover 22. The end of the pipe portion 223 away from the magnetic sensing element 40 forms a second opening, and the second tube 242 communicates with the second opening. The second tube 242 is connected to the iron removal chamber 201 through the second opening. The iron removal equipment 1000 delivers battery slurry into the iron removal chamber 201 through one of the first tube 241 and the second tube 242. When the battery slurry flows through the magnetic sensing element 40, the magnetic sensing element 40 adsorbs the metallic foreign matter in the battery slurry. The iron-removed battery slurry is discharged from the iron removal chamber 201 through the other of the first tube 241 and the second tube 242.

[0052] In some embodiments, a first opening and a second opening may be provided on the side plate 211, with the first opening located at the end of the side plate 211 near the end plate 212 and the second opening located at the end of the side plate 211 near the cover 22.

[0053] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A de-ironing apparatus (1000) characterized in that, Include: A rack (10); A de-ironing cylinder (20) mounted in the rack (10); An excitation structure (30) surrounding the outer peripheral side of the de-ironing cylinder (20); A magnetic sensing element (40) provided in the de-ironing cylinder (20); A magnetic concentrating element (50) fixedly connected to the rack (10) and located at least one end side of the de-ironing cylinder (20).

2. The iron removal device (1000) according to claim 1, characterized in that The side of the magnetic concentrating element (50) facing the magnetic sensing element (40) is provided with a first matching surface (501), and the distance from the part of the first matching surface (501) away from the side wall of the de-ironing cylinder (20) to the magnetic sensing element (40) is greater than or equal to the distance from the part of the first matching surface (501) close to the side wall of the de-ironing cylinder (20) to the magnetic sensing element (40).

3. The device (1000) for removing iron according to claim 2, characterized in that The de-ironing cylinder (20) is provided with a second matching surface (202) matched with the shape of the first matching surface (501), and the second matching surface (202) is arranged opposite to the first matching surface (501).

4. The iron removal device (1000) according to claim 1, characterized in that, The rack (10) includes a machine body (11) and a machine cover (12), the machine body (11) is provided with a containing cavity (101), the de-ironing cylinder (20) and the excitation structure (30) are located in the containing cavity (101) respectively, the machine cover (12) covers the machine body (11), the magnetic concentrating element (50) is located on the side of the de-ironing cylinder (20) close to the machine cover (12) and is fixedly connected with the machine cover (12), or the magnetic concentrating element (50) is located on the side of the de-ironing cylinder (20) away from the machine cover (12) and is fixedly connected with the machine body (11), or the magnetic concentrating element (50) is provided with two, one of the magnetic concentrating element (50) is located on the side of the de-ironing cylinder (20) close to the machine cover (12) and is fixedly connected with the machine cover (12), and the other magnetic concentrating element (50) is located on the side of the de-ironing cylinder (20) away from the machine cover (12) and is fixedly connected with the machine body (11).

5. The iron removal device (1000) according to claim 1, characterized in that, The de-ironing cylinder (20) includes a cylinder body (21) and a cover body (22), the cylinder body (21) includes a side plate (211) and an end plate (212), the end plate (212) is connected to the side plate (211) and forms a de-ironing cavity (201) with the side plate (211), the magnetic sensing element (40) is located in the de-ironing cavity (201), and the cover body (22) is detachably covered on the end of the side plate (211) away from the end plate (212).

6. The iron removal device (1000) according to claim 5, characterized in that The magnetic concentrating element (50) and the de-ironing cavity (201) are isolated.

7. The device (1000) according to claim 6, characterized in that The cover (22) comprises a first cover part (221) and a second cover part (222), the first cover part (221) is located in the de-ironing cavity (201), the second cover part (222) is connected to the side of the first cover part (221) away from the de-ironing cavity (201), the second cover part (222) is used for fixedly connecting with the rack (10), the first cover part (221) and the second cover part (222) enclose to form a mounting groove (2210), the mounting groove (2210) is arranged separately from the de-ironing cavity (201), and the magnetic concentrating piece (50) is arranged in the mounting groove (2210).

8. The de-ironing device (1000) according to any one of claims 5-7, characterized in that, The end plate (212) is provided with the magnetic concentrating piece (50) on the side away from the de-ironing cavity (201), and the magnetic concentrating piece (50) is located outside the de-ironing cavity (201).

9. The iron removal device (1000) according to claim 5, characterized in that, The de-ironing cylinder (20) further comprises a sealing piece (23), and the sealing piece (23) is arranged between the cover (22) and the side plate (211).

10. The iron removal apparatus (1000) according to claim 1, characterized in that, The magnetic sensing piece (40) is arranged in plurality, the excitation structure (30) encloses to form an excitation cavity (301), the de-ironing cylinder (20) is arranged in the excitation cavity (301), and the plurality of magnetic sensing pieces (40) are located at positions corresponding to the excitation cavity (301) of the de-ironing cylinder (20).

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