Pipeline demagnetizing device and demagnetizing system

Abstract

The utility model relates to the technical field of demagnetization, and discloses a pipeline demagnetization device and a demagnetization system, and the pipeline demagnetization device comprises a connecting pipe body and a magnetic attraction piece. The connecting pipe body is configured to be capable of being connected into a material conveying pipeline, the magnetic attraction piece is arranged on the connecting pipe body, and at least part of the magnetic attraction piece is located in the connecting pipe body and used for attracting magnetic substances in materials flowing through the connecting pipe body. The multiple magnetic attraction pieces are arranged on the connecting pipe body at intervals in the material conveying direction, every two adjacent magnetic attraction pieces are arranged in a crossed mode on the axial orthographic projection of the connecting pipe body, and magnetic substances in materials flowing through the connecting pipe body can be attracted under the magnetic force action of the magnetic attraction pieces so that most of the magnetic substances in the materials can be removed in advance; the demagnetizing burden of subsequent original demagnetizing equipment is reduced, magnetic substances in the materials are removed to the maximum extent, and the content of the magnetic substances is reduced. The multiple magnetic attraction pieces are arranged in a crossed mode, it can be guaranteed that enough contact areas exist between materials and the magnetic attraction pieces, and the demagnetizing efficiency of the pipeline demagnetizing device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of demagnetization, especially to a pipeline demagnetization device and a demagnetization system. BACKGROUND

[0002] The content of magnetic impurities in graphite products directly affects the charge specific capacity, coulomb efficiency and capacity retention ability of the battery, and in order to ensure the performance of the battery, it is very important to control the content of magnetic impurities in graphite products.

[0003] In the prior art, during the treatment of graphite products by the box-type graphitization furnace, the graphite products are usually treated by two vibration screens in sequence after being discharged from the furnace, and then are treated by a demagnetizer, and finally are packaged as finished products. However, since the vibration screens cannot filter all the magnetic impurities, the treated graphite products still carry part of the magnetic impurities, and the demagnetization capacity of the demagnetizer is limited, which cannot effectively remove the magnetic impurities carried by the graphite products, and part of the magnetic impurities will escape and mix into the graphite products, resulting in that the content of magnetic impurities in the finally packaged graphite products is high, which affects the performance of the products.

[0004] Therefore, there is an urgent need for a pipeline demagnetization device and a demagnetization system to solve the above problems. UTILITY MODEL CONTENT

[0005] Based on the above problems, the purpose of the utility model is to provide a pipeline demagnetization device and a demagnetization system, which can remove the magnetic impurities in graphite products, reduce the demagnetization burden of subsequent demagnetization equipment, and ensure the quality of graphite products.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] On the one hand, a pipeline demagnetization device is provided, which comprises:

[0008] A connecting pipe body configured to be able to access a material conveying pipeline;

[0009] A magnetic attraction element arranged in the connecting pipe body and at least partially located in the connecting pipe body, the magnetic attraction element being used to adsorb magnetic substances in the material flowing through the connecting pipe body;

[0010] The magnetic attraction elements are arranged in multiple numbers in the connecting pipe body along the material conveying direction, and each two adjacent magnetic attraction elements are arranged in cross.

[0011] As an optional scheme of the pipeline magnetic removal device, the pipeline magnetic removal device further comprises a mounting cylinder, the mounting cylinder is connected to the pipe wall of the connecting pipe body in a penetrating manner, and a plurality of mounting cylinders are arranged on the connecting pipe body in a spaced manner along the material conveying direction.

[0012] The magnetic material in the material flowing through the connecting pipe body can be adsorbed to the mounting cylinder or the magnetic attraction piece under the magnetic force of the magnetic attraction piece.

[0013] As an optional scheme of the pipeline magnetic removal device, the magnetic attraction piece is detachably inserted into the mounting cylinder, and the pipeline magnetic removal device further comprises a fixing piece detachably connected to the mounting cylinder, and the fixing piece can limit the magnetic attraction piece in the mounting cylinder.

[0014] As an optional scheme of the pipeline magnetic removal device, the fixing piece comprises a stopper and a screw rod part connected to each other, the screw rod part can extend into the mounting cylinder and be threadedly connected with the mounting cylinder, and the stopper is arranged at the end of the mounting cylinder.

[0015] Alternatively, the fixing piece is clamped to the mounting cylinder through a buckle structure.

[0016] As an optional scheme of the pipeline magnetic removal device, the mounting cylinder has openings at both ends, the fixing piece is arranged at the opening of the mounting cylinder at both ends, and the fixing piece can block the corresponding opening.

[0017] Alternatively, one end of the mounting cylinder is closed, and the other end has an opening, the fixing piece is detachably connected to the opening of the mounting cylinder, and can block the opening.

[0018] As an optional scheme of the pipeline magnetic removal device, the mounting cylinder comprises a first cylinder segment and a second cylinder segment, the first cylinder segment and the second cylinder segment are fixedly connected to the pipe wall of the connecting pipe body, and the first cylinder segment and the second cylinder segment are coaxial.

[0019] Alternatively, the mounting cylinder penetrates the connecting pipe body as a whole, and at least one end of the mounting cylinder is exposed to the outside of the connecting pipe body.

[0020] As an optional scheme of the pipeline magnetic removal device, the mounting cylinder is perpendicular to the connecting pipe body; alternatively, the axis of the mounting cylinder and the axis of the connecting pipe body form an acute angle.

[0021] And / or, in the axial projection of the connecting pipe body, the included angle between the two adjacent mounting cylinders is α, and the value range of α is 20°-90°.

[0022] And / or, the spacing between two adjacent installation barrels in the axial direction of the connecting pipe body is L, and L is in the range of 500mm to 900mm.

[0023] As an optional scheme of the pipeline magnetic removal device, the included angle α between two adjacent installation barrels is 30° or 45°.

[0024] As an optional scheme of the pipeline magnetic removal device, the first end of the connecting pipe body is provided with a first fastener, the second end of the connecting pipe body is provided with a second fastener, the material conveying pipeline comprises an upstream pipeline and a downstream pipeline, one end of the connecting pipe body is connected with the upstream pipeline through the first fastener, and the other end of the connecting pipe body is connected with the downstream pipeline through the second fastener.

[0025] And / or, the magnetic attraction member comprises a magnetic bar, and the magnetic field strength of the magnetic bar is not less than 10000Gs.

[0026] On the other hand, a magnetic removal system is provided, comprising a material conveying pipeline and a pipeline magnetic removal device as described above, the material conveying pipeline is provided with original magnetic removal equipment, and the pipeline magnetic removal device is installed on the material conveying pipeline and located upstream of the original magnetic removal equipment.

[0027] The pipeline magnetic removal device and the magnetic removal system have the following beneficial effects:

[0028] The pipeline magnetic removal device and the magnetic removal system can arrange the magnetic removal device upstream of original magnetic removal equipment (such as a magnetic removal machine or a vibrating screen), and specifically, the connecting pipe body is connected between the upstream pipeline and the downstream pipeline of the material conveying pipeline. When the material flows through the connecting pipe body, the magnetic material carried in the material is adsorbed by the magnetic attraction member under the action of the magnetic field of the magnetic attraction member, so that most of the magnetic material in the material can be removed in advance, the magnetic material in the material reaching the subsequent original magnetic removal equipment is greatly reduced, the magnetic removal burden of the original magnetic removal equipment is reduced, the magnetic material in the material can be removed to the maximum extent, the content of the magnetic material in the graphite product is reduced, the content of the magnetic material in the packaged finished product of the graphite product is ensured to meet the requirements, and the performance of the battery product is improved. Since the magnetic attraction members are arranged at intervals, and each two adjacent magnetic attraction members are arranged in cross in the axial projection of the connecting pipe body, the contact area between the material and the magnetic attraction member is sufficient, the magnetic removal efficiency of the pipeline magnetic removal device is improved, and the magnetic material in the material is effectively removed. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the present application. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the contents of the embodiments of the present application and these drawings without any creative effort.

[0030] Figure 1 is a structural schematic diagram of the pipeline magnetic removal device provided by the embodiment of the present application.

[0031] Figure 2 is a front view of the pipeline magnetic removal device provided by the first embodiment of the present application.

[0032] Figure 3 is a side view of the pipeline magnetic removal device provided by the embodiment of the present application.

[0033] Figure 4 is a sectional schematic diagram of the pipeline magnetic removal device provided by the first embodiment of the present application.

[0034] Figure 5 is a sectional schematic diagram of the pipeline magnetic removal device provided by the second embodiment of the present application.

[0035] Figure 6 is a sectional schematic diagram of the pipeline magnetic removal device provided by the third embodiment of the present application.

[0036] Figure 7 is a front view of the pipeline magnetic removal device provided by the fourth embodiment of the present application.

[0037] In the drawings:

[0038] 1, connecting pipe body; 2, mounting cylinder; 3, magnetic attraction piece; 4, fixing piece; 5, first fastener; 6, second fastener;

[0039] 11, first flange plate;

[0040] 21, first cylinder segment; 22, second cylinder segment;

[0041] 41, stop portion; 42, screw portion. DETAILED DESCRIPTION

[0042] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0043] 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 for simplifying the description, and do not indicate or imply that the device 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" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Specifically, the terms "first position" and "second position" refer to two different positions.

[0044] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between 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.

[0045] Example 1

[0046] like Figures 1 to 4 As shown, this embodiment provides a pipeline demagnetizing device that can remove magnetic impurities from graphite products in advance, reduce the demagnetizing burden on subsequent demagnetizing equipment, and ensure the quality of graphite products. The pipeline demagnetizing device includes a connecting pipe body 1, a mounting cylinder 2, and a magnetic suction component 3.

[0047] Among them, see Figure 1 , Figure 2 and Figure 3 The connecting pipe 1 is configured to connect to a material conveying pipeline and is located upstream of the existing demagnetizing equipment. A magnetic attractor 3 is disposed on the connecting pipe 1, and at least partially located within the connecting pipe 1. The magnetic attractor 3 is used to attract magnetic substances in the material flowing through the connecting pipe 1. Multiple magnetic attractors 3 are spaced apart on the connecting pipe 1 along the material conveying direction, and in the axial orthogonal projection of the connecting pipe 1, every two adjacent magnetic attractors 3 are arranged crosswise.

[0048] like Figure 3 The figure shows a side view of the connecting tube 1, which is also the axial orthographic projection of the connecting tube 1. It can be seen from the figure that multiple magnetic suction components 3 are arranged in a cross pattern.

[0049] The pipeline demagnetizing device provided in this embodiment can be arranged upstream of the existing demagnetizing equipment (such as a demagnetizer or vibrating screen). Specifically, the connecting pipe 1 is connected between the upstream and downstream pipes of the material conveying pipeline. When the material flows through the connecting pipe 1, under the action of the magnetic field of the magnetic attractor 3, the magnetic material carried in the material is attracted by the magnetic attractor 3, thereby removing most of the magnetic material in the material in advance. This greatly reduces the amount of magnetic material in the material reaching the subsequent existing demagnetizing equipment, thereby reducing the demagnetizing burden on the existing demagnetizing equipment. It can remove magnetic material from the material to the maximum extent, reduce the content of magnetic material in graphite products, ensure that the content of magnetic material in the packaged graphite products meets the requirements, and improve the performance of battery products.

[0050] Since multiple magnetic suction elements 3 are arranged at intervals, and each pair of adjacent magnetic suction elements 3 are arranged crosswise on the axial orthogonal projection of the connecting pipe body 1, there is sufficient contact area between the material and the magnetic suction elements 3, which can improve the demagnetization efficiency of the pipe demagnetization device and effectively remove magnetic substances from the material.

[0051] Optionally, see Figure 1 , Figure 2 and Figure 3 The pipeline demagnetizing device also includes mounting cylinders 2, which penetrate the wall of the connecting pipe body 1. Multiple mounting cylinders 2 are spaced apart along the material conveying direction on the connecting pipe body 1, with each pair of adjacent mounting cylinders 2 arranged crosswise on the axial orthogonal projection of the connecting pipe body 1. Each mounting cylinder 2 contains a magnetic attractor 3. Magnetic substances in the material flowing through the connecting pipe body 1 can be attracted to the mounting cylinder 2 or the magnetic attractor 3 under the magnetic force of the magnetic attractor 3. When the material flows through the connecting pipe body 1, it comes into contact with the mounting cylinder 2 or the magnetic attractor 3. Under the magnetic field of the magnetic attractor 3, the magnetic substances can be attracted to the magnetic attractor 3 or the mounting cylinder 2, achieving the purpose of removing magnetic substances from the material. The mounting cylinder 2 provides a mounting base for the magnetic attractor 3, allowing for easy installation and removal of the magnetic attractor 3, which is beneficial for subsequent cleaning of magnetic substances inside the connecting pipe body 1. Furthermore, the mounting cylinder 2 restricts the installation position of the magnetic attractor 3, ensuring that the magnetic attractor 3 can continuously and stably attract magnetic substances from the material.

[0052] Of course, in other alternative implementation schemes, the mounting cylinder 2 may not be provided. For example, a mounting hole penetrating the inner cavity of the connecting tube 1 may be opened on the connecting tube 1, and the magnetic suction component 3 may be directly inserted into the mounting hole and sealed to the mounting hole to ensure that the connecting tube 1 does not leak material. This can also achieve the adsorption of magnetic substances in the material.

[0053] Optionally, the magnetic member 3 comprises a magnetic bar, and the magnetic field strength of the magnetic bar is not less than 10000Gs, so as to ensure that the magnetic member 3 can generate a magnetic field strong enough to sufficiently adsorb the magnetic substance in the material.

[0054] In the embodiment, the magnetic bar with a magnetic field strength of 12000Gs is selected, and the magnetic field strength is sufficient and the adsorption force is strong. In other embodiments, a magnetic bar with a suitable magnetic field strength can be selected according to the size of the connecting pipe and the amount of magnetic substance in the material.

[0055] Optionally, referring to Figure 2 and Figure 3 , the mounting cylinder 2 is perpendicular to the connecting pipe body 1. In this way, the magnetic member 3 can be perpendicular to the direction of the material, and the magnetic bar or the mounting cylinder 2 has a large contact area with the material, so that the magnetic substance carried in the material can be more effectively adsorbed.

[0056] In other embodiments, the mounting cylinder 2 can also be arranged at an acute angle with the axis of the connecting pipe body 1. That is, the mounting cylinder 2 is arranged at an angle with respect to the connecting pipe body 1, and the magnetic substance carried in the material can also be adsorbed.

[0057] Referring to Figure 3 , the included angle between the adjacent two mounting cylinders 2 on the axial orthographic projection of the connecting pipe body 1 is α, and the value of α is in the range of 20°-90°. When designing, the size of the included angle between the adjacent two mounting cylinders 2 can be selected according to the content of the magnetic substance in the material, and when the number of the mounting cylinders 2 is designed to be smaller, the included angle between the adjacent two mounting cylinders 2 is larger, and when the number of the mounting cylinders 2 is designed to be larger, the included angle between the adjacent two mounting cylinders 2 is smaller.

[0058] In the embodiment, as shown in Figure 1 and Figure 3 , four mounting cylinders 2 are arranged at intervals on the connecting pipe body 1, and the four mounting cylinders 2 are arranged at equal intervals along the circumference of the connecting pipe body 1, so that the included angle α between the adjacent two mounting cylinders 2 is 45°. Of course, the four mounting cylinders 2 can also be arranged at unequal intervals in the circumferential direction.

[0059] In other embodiments, if two mounting cylinders 2 are arranged, the included angle α between the two mounting cylinders 2 can be 90°, or 30°, 60°, etc. Or, when six mounting cylinders 2 are arranged and the six mounting cylinders 2 are arranged at equal intervals in the circumferential direction, the included angle α between the adjacent two mounting cylinders 2 is 30°.

[0060] The number and distribution of the mounting cylinders 2 can be designed according to actual needs, and are not limited to the number and distribution listed above.

[0061] Referring to Figure 2The distance between two adjacent installation barrels 2 in the axial direction of the connecting pipe body 1 is L, and L is in the range of 500mm-900mm. In the specific design, the distance between two adjacent installation barrels 2 can be selected according to the content of magnetic substances in the material, the material flow, and other factors.

[0062] For example, L can be 500mm, 550mm, 600mm, 650mm, 700mm, 750mm, 800mm, 850mm, 900mm, etc., but is not limited to the above-mentioned values.

[0063] Optionally, referring to Figure 2 , the first end of the connecting pipe body 1 is provided with a first fastener 5, the second end of the connecting pipe body 1 is provided with a second fastener 6, the material conveying pipeline includes an upstream pipeline and a downstream pipeline, one end of the connecting pipe body 1 is connected with the upstream pipeline through the first fastener 5, and the other end of the connecting pipe body 1 is connected with the downstream pipeline through the second fastener 6. According to the position of the original magnetic removal device, the connecting pipe body 1 is connected at a suitable position of the material conveying pipeline, specifically, the connecting pipe body 1 is connected and fixed with the upstream pipeline through the first fastener 5, and the connecting pipe body 1 is connected and fixed with the downstream pipeline through the second fastener 6. In this way, the connecting pipe body 1 can be conveniently disassembled and assembled, and the magnetic substances adsorbed in the connecting pipe body 1 can be conveniently cleaned later.

[0064] For example, the first fastener 5 and the second fastener 6 can be pipeline clamps, which can clamp the connecting pipe body 1 and the upstream pipeline and the downstream pipeline, and the connection is reliable and the disassembly and assembly operation is convenient.

[0065] Optionally, referring to Figure 2 , the magnetic attraction member 3 is detachably inserted into the installation barrel 2, and the pipeline magnetic removal device further includes a fixing member 4 detachably connected to the installation barrel 2, and the fixing member 4 can limit the magnetic attraction member 3 in the installation barrel 2. That is, after the magnetic attraction member 3 is installed in the installation barrel 2, the fixing member 4 is used to block the magnetic attraction member 3 in the installation barrel 2, so as to ensure that the magnetic attraction member 3 is stably and firmly installed. When the magnetic substances in the connecting pipe body 1 are cleaned later, the fixing member 4 can be disassembled, and the magnetic attraction member 3 can be taken out of the installation barrel 2, so that the cleaning operation is convenient.

[0066] Referring to Figure 4 , the fixing member 4 includes a stop portion 41 and a screw portion 42 connected to each other, the screw portion 42 can extend into the installation barrel 2 and be threadedly connected with the installation barrel 2, and the stop portion 41 is stopped at the end of the installation barrel 2. When the magnetic attraction member 3 is disassembled and assembled, only the fixing member 4 needs to be screwed, which is simple in operation and can ensure that the fixing member 4 is firmly connected with the installation barrel 2.

[0067] In other optional embodiments, the fixing member 4 can also be a threaded cap with an internal thread, and the outer wall of the installation barrel 2 is provided with an external thread, and the threaded cap is threadedly screwed into the installation barrel 2.

[0068] In some alternative embodiments, the fixing member 4 can also be clamped to the mounting cylinder 2 through a buckle structure, as long as the magnetic attraction member 3 can be prevented from being separated from the mounting cylinder 2.

[0069] Optionally, referring to Figure 4 , the mounting cylinder 2 comprises a first cylinder segment 21 and a second cylinder segment 22, both of which are fixedly connected to the pipe wall of the connecting pipe body 1 and coaxial with each other. That is, the inner cavity of the first cylinder segment 21 and the inner cavity of the second cylinder segment 22 are both in communication with the inner cavity of the connecting pipe body 1, one end of the magnetic attraction member 3 is located in the first cylinder segment 21, and the other end is located in the second cylinder segment 22, so that the magnetic attraction member 3 can be prevented from moving relative to the connecting pipe body 1. The material flowing through the connecting pipe body 1 directly contacts the magnetic attraction member 3, and the magnetic attraction efficiency is high.

[0070] Optionally, both ends of the mounting cylinder 2 have openings, and the fixing member 4 is mounted at the openings of both ends of the mounting cylinder 2 and can block the corresponding openings. Specifically, Figure 4 , the first cylinder segment 21 and the second cylinder segment 22 are both in an open state at the end away from the connecting pipe body 1, and one fixing member 4 is mounted at the end of each of the first cylinder segment 21 and the second cylinder segment 22 to limit the magnetic attraction member 3 in the mounting cylinder 2.

[0071] Embodiment Two

[0072] The difference between the pipeline magnetic removal device of the present embodiment and that of Embodiment One is that:

[0073] Optionally, one end of the mounting cylinder 2 is closed, and the other end has an opening, and the fixing member 4 is detachably connected to the opening of the mounting cylinder 2 and can block the opening. Specifically, Figure 5 , the mounting cylinder 2 comprises a first cylinder segment 21 and a second cylinder segment 22, both of which are fixedly connected to the pipe wall of the connecting pipe body 1 and coaxial with each other. Further, the end of the first cylinder segment 21 is in an open state, and the end of the second cylinder segment 22 is in a closed state. The magnetic attraction member 3 is loaded through the opening of the first cylinder segment 21 and inserted into the second cylinder segment 22, and one fixing member 4 is mounted on the first cylinder segment 21 to limit the magnetic attraction member 3 in the mounting cylinder 2.

[0074] Embodiment Three

[0075] The difference between the pipeline magnetic removal device of the present embodiment and that of Embodiment One and Embodiment Two is that:

[0076] Optionally, referring to Figure 6The installation cylinder 2 is entirely through the connection pipe body 1, and at least one end of the installation cylinder 2 is exposed outside the connection pipe body 1. That is, the inner cavity of the installation cylinder 2 is not communicated with the inner cavity of the connection pipe body 1, the magnetic member 3 can generate a magnetic field through the installation cylinder 2 after being installed in the installation cylinder 2, the material flowing through the connection pipe body 1 directly contacts the installation cylinder 2, and the magnetic substance is adsorbed on the outer peripheral surface of the installation cylinder 2. In this way, when the magnetic substance is cleaned later, the magnetic member 3 is taken out of the installation cylinder 2, and the magnetic substance can automatically fall off from the outer peripheral surface of the installation cylinder 2, so that the cleaning operation of the magnetic substance is simpler, the cleaning efficiency is high, and the magnetic substance can be cleaned more easily.

[0077] In addition, the installation cylinder 2 is designed to have at least one end exposed outside the connection pipe body 1, so that the magnetic member 3 can be conveniently disassembled and assembled and the fastening operation of the fixing member 4 is facilitated.

[0078] Of course, if the pipe wall of the connection pipe body 1 is thick enough, the installation cylinder 2 can also be designed to be flush with the outer wall of the connection pipe body 1.

[0079] In the embodiment, one end of the installation cylinder 2 is in an open state, and the other end is in a closed state. One fixing member 4 is installed at the open end of the installation cylinder 2, so that the magnetic member 3 can be limited in the installation cylinder 2.

[0080] In other embodiments, the installation cylinder 2 can also be designed to have both ends open, and one fixing member 4 is installed at each end of the installation cylinder 2 to limit the magnetic member 3 in the installation cylinder 2.

[0081] Optionally, the magnetic member 3 comprises a magnetic rod, and the magnetic rod is inserted and assembled in the installation cylinder 2.

[0082] In other embodiments, the magnetic member 3 can also comprise a plurality of magnetic blocks, and the plurality of magnetic blocks are inserted and assembled in the installation cylinder 2 to generate a magnetic field, so that the magnetic substance in the material is adsorbed on the outer peripheral wall of the installation cylinder 2.

[0083] Embodiment Four

[0084] The pipeline demagnetization device provided in the embodiment is different from the pipeline demagnetization device provided in the first embodiment in that:

[0085] As shown in Figure 7 Optionally, the first flange plate 11 is arranged at each end of the connection pipe body 1, and the second flange plate is arranged at the upstream pipeline and the downstream pipeline. The first flange plate 11 is butted against the second flange plate, and is fixed by using bolts or other fasteners. In this way, the connection pipe body 1 can be connected to the material conveying pipeline, and the connection pipe body 1 can be conveniently disassembled and assembled for cleaning operation.

[0086] Embodiment Five

[0087] The embodiment provides a magnetic removal system, which comprises a material conveying pipeline and a pipeline magnetic removal device as described in any one of the above embodiments, and the original magnetic removal equipment is arranged on the material conveying pipeline, and the pipeline magnetic removal device is installed on the material conveying pipeline and located upstream of the original magnetic removal equipment.

[0088] Exemplarily, the material conveying pipeline can be a product conveying pipeline of a graphitization furnace, used for conveying graphite products, and the original magnetic removal equipment can be a vibrating screen or a magnetic removal machine.

[0089] The magnetic removal system can remove most of the magnetic substances in the material in advance by installing the pipeline magnetic removal device upstream of the original magnetic removal equipment on the material conveying pipeline, so that the magnetic substances in the material reaching the original magnetic removal equipment are greatly reduced, the magnetic removal burden of the original magnetic removal equipment is reduced, the magnetic substances in the material can be removed to the maximum extent, the content of the magnetic substances in the graphite products is reduced, the content of the magnetic substances in the packaged finished products of the graphite products can meet the requirements, and the performance of the battery products is improved.

[0090] It should be noted that the above are only the preferred embodiments of the present application and the technical principles applied. Those skilled in the art will understand that the present application is not limited to the specific embodiments herein, and those skilled in the art can make various obvious changes, re-adjustments and substitutions without departing from the protection scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments, and more other equivalent embodiments can be included without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. A pipeline de-magnetizer characterized by, The pipeline magnetic removal device comprises a connecting pipe body (1) configured to be connected to a material conveying pipeline; a magnetic attraction member (3) arranged on the connecting pipe body (1) and at least partially located in the connecting pipe body (1), the magnetic attraction member (3) being used for attracting magnetic substances in material flowing through the connecting pipe body (1); a plurality of the magnetic attraction members (3) are arranged on the connecting pipe body (1) in a material conveying direction, and each two adjacent magnetic attraction members (3) are arranged in cross on an axial projection of the connecting pipe body (1). The pipeline magnetic removal device further comprises a mounting cylinder (2) penetratingly connected to a pipe wall of the connecting pipe body (1), and a plurality of the mounting cylinders (2) are arranged on the connecting pipe body (1) in the material conveying direction, and each two adjacent mounting cylinders (2) are arranged in cross on the axial projection of the connecting pipe body (1). Each of the mounting cylinders (2) is provided with the magnetic attraction member (3), and the magnetic substances in the material flowing through the connecting pipe body (1) can be attracted to the mounting cylinder (2) or the magnetic attraction member (3) under the magnetic force of the magnetic attraction member (3). The magnetic attraction member (3) is detachably inserted into the mounting cylinder (2), and the pipeline magnetic removal device further comprises a fixing member (4) detachably connected to the mounting cylinder (2), and the fixing member (4) can limit the magnetic attraction member (3) in the mounting cylinder (2).

2. The pipe de-magnetizer of claim 1, wherein, The fixing member (4) comprises a stop portion (41) and a screw portion (42) connected to each other, the screw portion (42) can extend into the mounting cylinder (2) and be threadedly connected to the mounting cylinder (2), and the stop portion (41) is stopped at an end of the mounting cylinder (2). Alternatively, the fixing member (4) is clamped to the mounting cylinder (2) through a buckle structure.

3. The pipe de-magnetizer of claim 2, wherein, Both ends of the mounting cylinder (2) are provided with openings, and the fixing member (4) is arranged at the openings of both ends of the mounting cylinder (2) and can seal the corresponding openings.

4. The apparatus of claim 3, wherein, Alternatively, one end of the mounting cylinder (2) is closed, and the other end is provided with an opening, and the fixing member (4) is detachably connected to the opening of the mounting cylinder (2) and can seal the opening. The mounting cylinder (2) comprises a first cylinder segment (21) and a second cylinder segment (22), the first cylinder segment (21) and the second cylinder segment (22) are fixedly connected to a pipe wall of the connecting pipe body (1), and the first cylinder segment (21) and the second cylinder segment (22) are coaxial.

5. The apparatus of claim 3, wherein, Alternatively, the mounting cylinder (2) penetrates the connecting pipe body (1) as a whole, and at least one end of the mounting cylinder (2) is exposed to the outside of the connecting pipe body (1). The mounting cylinder (2) is perpendicular to the connecting pipe body (1), or the axis of the mounting cylinder (2) forms an acute angle with the axis of the connecting pipe body (1).

6. The pipe de-magnetizer of claim 2, wherein, And / or, the included angle between two adjacent mounting cylinders (2) is α on the axial projection of the connecting pipe body (1), and the value of α is in the range of 20°-90°. ​ 7. A pipeline de-magnetising device according to any one of claims 2 to 6, wherein, ​ ​ And / or, the distance between two adjacent mounting cylinders (2) in the axial direction of the connecting pipe body (1) is L, and L is 500-900mm.

8. The pipe de-magnetizer of claim 7, wherein, The included angle (a) between two adjacent mounting cylinders (2) is 30° or 45°.

9. The pipe de-magnetizer of any one of claims 1-6, wherein, The first end of the connecting pipe body (1) is provided with a first fastener (5), the second end of the connecting pipe body (1) is provided with a second fastener (6), the material conveying pipeline comprises an upstream pipeline and a downstream pipeline, one end of the connecting pipe body (1) is connected with the upstream pipeline through the first fastener (5), the other end of the connecting pipe body (1) is connected with the downstream pipeline through the second fastener (6); And / or, the magnetic attraction member (3) comprises a magnetic bar, and the magnetic field strength of the magnetic bar is not less than 10000Gs.

10. A magnetic field removal system comprising a material conveying pipe and a pipe magnetic field removal device according to any one of claims 1 to 9, characterized in that, The material conveying pipeline is provided with original magnetic removal equipment, and the pipeline magnetic removal device is installed on the material conveying pipeline and located upstream of the original magnetic removal equipment.

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