Filtering device

Abstract

The utility model relates to a filtering device, which is used for filtering magnetic particles in slurry, and comprises: a cylinder body, which is internally provided with a flow channel for the slurry to flow through; the magnetic rod is arranged in the flow channel, and the magnetic rod is used for adsorbing magnetic particles in the slurry; the turbulent flow frame is located between the cylinder body and the magnetic bar, the turbulent flow frame is arranged around the magnetic bar, and the turbulent flow frame is used for changing the flowing path of the slurry; the turbulent flow frame comprises a support and a plurality of turbulent flow assemblies, the multiple turbulent flow assemblies are arranged on the support in the axial direction of the magnetic bar, and every two adjacent turbulent flow assemblies are arranged in a staggered mode in the direction around the magnetic bar. According to the filtering device provided by the invention, the flow path of the slurry is changed by arranging the turbulent flow frame, so that fine magnetic particles in the slurry can be effectively removed, and the demagnetizing effect is improved.

Description

Technical Field

[0001] The present application relates to the technical field of magnetic filtration, and particularly to a filtration device for filtering magnetic particles in a slurry. Background Art

[0002] Lithium-ion batteries have high working voltage, high specific energy, long cycle life, and no environmental pollution. They are widely used not only in mobile communication devices and portable electronic devices, but also increasingly in electric vehicles and energy storage devices in recent years. With the continuous expansion of the usage scenarios, the performance requirements for lithium-ion batteries are also getting higher and higher.

[0003] For lithium-ion batteries, ferromagnetic substances are easily generated during the manufacturing and transportation processes of battery slurries. These substances need to be removed in a timely manner to enhance the production quality and safety performance of the batteries. Currently, the iron removers used in the process of transporting battery slurries cannot meet the requirement of fully removing ferromagnetic substances, and the demagnetization effect of fine magnetic particles is poor. However, in practice, fine magnetic particles usually account for the largest proportion of magnetic particles. Summary of the Utility Model

[0004] In view of the above problems, embodiments of the present application provide a filtration device for filtering magnetic particles in a slurry, which can effectively remove fine magnetic particles in the slurry and improve the demagnetization effect.

[0005] Embodiments of the present application provide a filtration device for filtering magnetic particles in a slurry, including: a cylinder body, in which a flow channel for the slurry to flow through is provided; a magnetic rod, which is arranged in the flow channel and is used to adsorb magnetic particles in the slurry; a turbulence generating frame, which is located between the cylinder body and the magnetic rod and is arranged around the magnetic rod, and the turbulence generating frame is used to change the flow path of the slurry; wherein, the turbulence generating frame includes a bracket and a plurality of turbulence generating components, and the plurality of turbulence generating components are arranged on the bracket along the axial direction of the magnetic rod, and two adjacent turbulence generating components are arranged staggeredly in the direction of surrounding the magnetic rod.

[0006] By arranging a turbulence generating frame between the cylinder body and the magnetic rod that can change the flow path of the slurry, the path length of the slurry flow is increased, and turbulence is generated when the slurry collides with the turbulence generating frame during the flow process, increasing the turbulence in the slurry. Thereby, the probability of the magnetic particles in the slurry coming into contact with the magnetic rod is increased, and thus the demagnetization effect of the filtration device is improved.

[0007] In some embodiments, the turbulence generating component includes a plurality of turbulence generating plates, and the plurality of turbulence generating plates are arranged at intervals in the direction of surrounding the magnetic rod.

[0008] Using a spoiler as a spoiler component can better block the flow of the slurry. By arranging multiple spoilers at intervals in the direction around the magnetic rod, the path length of the slurry flow can be increased at each corresponding position where the spoiler is provided circumferentially around the magnetic rod, so that at each corresponding position where the spoiler is provided, the slurry can generate turbulence when it collides with the spoiler, increasing the turbulence in the slurry. This further increases the probability of the magnetic particles in the slurry coming into contact with the magnetic rod, thereby further improving the demagnetization effect of the filtering device.

[0009] In some embodiments, the spoiler is configured to extend in the direction of the slurry inflow into the cylinder.

[0010] Setting the spoiler to extend in the direction of the slurry inflow into the cylinder can further improve the blocking effect on the slurry flow, so that the slurry generates stronger turbulence when it collides with the spoiler during the flow process. This further increases the probability of the magnetic particles in the slurry coming into contact with the magnetic rod and improves the demagnetization effect of the filtering device.

[0011] In some embodiments, the bracket includes: a plurality of main body parts, the plurality of main body parts are distributed along the axial direction of the magnetic rod, and the spoiler assembly is arranged on the main body parts; and a connecting part, the connecting part is used for connecting the plurality of main body parts.

[0012] Arranging a plurality of main body parts along the axial direction of the magnetic rod can facilitate the spaced and staggered arrangement of the spoiler assembly along the axial direction of the magnetic rod, thereby improving the blocking effect of the spoiler assembly on the slurry and the demagnetization effect of the filtering device; arranging the connecting part to connect the plurality of main body parts can facilitate the formation of the spoiler frame as a whole, which is convenient for production and installation.

[0013] In some embodiments, the spoiler includes: a first end for connecting with the main body part; and a second end disposed opposite to the first end, and the spoiler is configured to extend from the first end to the second end in the direction of the slurry inflow into the cylinder.

[0014] Setting the first end of the spoiler to be connected with the main body part helps to connect the spoiler assembly with the bracket. Setting the spoiler to be configured to extend from the first end to the second end in the direction of the slurry inflow into the cylinder can improve the blocking effect of the spoiler on the slurry flow, so that the slurry generates stronger turbulence during the flow process. This further increases the probability of the magnetic particles in the slurry coming into contact with the magnetic rod and improves the demagnetization effect of the filtering device.

[0015] In some embodiments, the ratio of the length of the first end in the direction around the magnetic rod to the circumference of the main body part is greater than or equal to 0.16 and less than or equal to 0.5.

[0016] Setting the ratio of the length of the first end of the spoiler in the direction around the magnetic bar to the perimeter of the main body within an appropriate numerical range can ensure that the spoiler has sufficient blocking effect on the slurry flow to improve the demagnetization effect of the filtering device, while ensuring that the slurry can flow relatively smoothly within the cylinder body.

[0017] In some embodiments, the magnetic bar includes a plurality of magnetic blocks arranged along the axial direction of the magnetic bar; the spoiler is configured to extend towards the contact portion between adjacent magnetic blocks.

[0018] The magnetic field strength at the contact portion between adjacent magnetic blocks is relatively stronger. Setting the spoiler to extend towards the contact portion between adjacent magnetic blocks can cause more turbulence generated by the blocking of the spoiler to occur at the contact portion between adjacent magnetic blocks, thereby using the relatively stronger magnetic field strength to adsorb magnetic particles in the slurry and improving the demagnetization effect of the filtering device.

[0019] In some embodiments, it further includes a housing and a cover. The housing is used to accommodate the cylinder body, the cover is detachably connected to the housing, the cover is provided with a feed port, and the housing is provided with a discharge port.

[0020] By setting the filtering device to have a housing for accommodating the cylinder body, and the cover and the housing are respectively provided with a feed port and a discharge port, the filtering device can be provided with multiple cylinder bodies to increase the filtering flow rate of the filtering device. The slurry to be filtered can flow in from the feed port located on the cover, and the filtered slurry can flow out from the discharge port located on the housing. By setting the cover to be detachably connected to the housing, the magnetic bar disposed within the housing can be taken out for cleaning, facilitating the maintenance of the filtering device.

[0021] In some embodiments, the housing includes a first end plate. The first end plate includes a first surface and a retaining ring protruding relative to the first surface. The retaining ring is used to cooperate with the inner side wall of the cover to achieve sealing.

[0022] By setting the first end plate of the housing to have a retaining ring for cooperating with the inner side wall of the cover, the sealing effect between the cover and the housing in the filtering device can be improved.

[0023] In some embodiments, the first end plate further includes a sealing groove recessed relative to the first surface. The sealing groove is used to accommodate a sealing member.

[0024] By setting the first end plate of the housing to further have a sealing groove for accommodating a sealing member, the sealing effect between the cover and the housing in the filtering device can be further improved.

[0025] The above description is only an overview of the technical solution of this application. In order to be able to more clearly understand the technical means of this application, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of this application more obvious and understandable, the following specifically enumerates the specific embodiments of this application. Brief Description of the Drawings

[0026] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present application. Moreover, in all the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0027] Figure 1 is a schematic structural diagram of a filtering device in some embodiments of the present application;

[0028] Figure 2 is Figure 1 a sectional view of the filtering device shown in the X-X direction;

[0029] Figure 3 is a schematic structural diagram of a component including a magnetic rod and a turbulence rack in some embodiments of the present application;

[0030] Figure 4 is Figure 2 a partial enlarged view of part A in;

[0031] Figure 5 is Figure 2 a partial enlarged view of part B in;

[0032] Figure 6 is a schematic structural diagram of a cover body in some embodiments of the present application;

[0033] Figure 7 is a top view of the first end plate of the housing in some embodiments of the present application;

[0034] Figure 8 is Figure 7 a sectional view of the shown first end plate in the Y-Y direction.

[0035] The reference numerals in the specific embodiments are as follows:

[0036] 10, cylinder body; 20, magnetic rod; 21, magnetic block; 30, turbulence rack; 31, bracket; 311, connecting part; 312, main body part; 32, turbulence component; 321, turbulence plate; 3201, first end; 3202, second end; 40, housing; 41, discharge port; 42, groove; 43, first end plate; 430, first surface; 431, retaining ring; 432, sealing groove; 433, seal; 44, second end plate; 441, mounting seat; 50, cover body; 51, feed port; 52, protrusion; 53, clamped part. Specific Embodiments

[0037] To make the objectives, technical solutions and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly described below with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are some, but not all, of the embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts shall fall within the scope of protection of this application.

[0038] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects and not to describe a specific order or primary-secondary relationship.

[0039] Referring to "embodiment" in this application means that a specific feature, structure or characteristic described in connection with the embodiment can be included in at least one embodiment of this application. The phrase appears in various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments.

[0040] In the description of this application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "coupled", "attached" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this application generally represents an "or" relationship between the associated objects before and after.

[0042] In the embodiments of this application, the same reference numerals represent the same components, and for the sake of brevity, in different embodiments, the detailed description of the same components is omitted. It should be understood that the thickness, length, width and other dimensions of various components shown in the drawings in the embodiments of this application, as well as the overall thickness, length, width and other dimensions of the integrated device are only for illustrative purposes and should not constitute any limitation to this application.

[0043] In this application, "a plurality of" means two or more (including two).

[0044] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation.

[0045] Slurry is an important raw material in the battery manufacturing process, which may contain tiny magnetic impurities. If these impurities are not removed, the purity of the battery will be reduced, thus affecting the performance and stability of the battery. For example, iron particles may have adverse effects during the charge and discharge process of the battery, such as reducing the battery capacity and shortening the battery life.

[0046] A magnetic separator is a filtering device used to filter magnetic particles in the slurry, and it captures and filters magnetic particles (including iron, nickel, cobalt, etc.) in the slurry through a magnetic field. When the slurry flows through the magnetic separator, the magnetic particles in it are firmly adsorbed on the magnetic rod under the attraction of the magnetic field, and thus are effectively separated from the slurry.

[0047] Slurry refers to a non-Newtonian fluid with certain stability, viscosity, fluidity, and shear thinning phenomenon.

[0048] A magnetic rod is a rod-shaped magnet made of permanent magnetic material. The magnetic rod has strong magnetism and can generate a persistent magnetic field.

[0049] In the related art, the magnetic separator has a poor demagnetization effect on fine magnetic particles below 50 μm. However, in practice, the particles between 15 μm and 50 μm usually account for the largest proportion of magnetic particles. In view of this, the embodiment of this application proposes a filtering device for filtering magnetic particles in the slurry. The filtering device is provided with a spoiler in the channel (the space between the cylinder and the magnetic rod) through which the slurry flows. By setting the spoiler that can change the flow path of the slurry, the path length of the slurry flow is increased. Since turbulence is generated when the slurry collides with the spoiler during the flow process, the turbulence in the slurry is increased. Thereby, the probability of the magnetic particles in the slurry contacting the magnetic rod is increased, and thus the demagnetization effect of the filtering device is improved.

[0050] The magnetic separator (filtering device for filtering magnetic particles in the slurry) in the embodiment of this application can be applied to a variety of scenarios, including but not limited to: batteries, chemical industry, pharmaceuticals, food and feed processing, etc.

[0051] Please refer toFigures 1-3 , embodiments of the present application provide a filtering device for filtering magnetic particles in a slurry. The filtering device includes a cylinder body 10, a magnetic rod 20, and a flow disturbing frame 30. A flow channel for the slurry to flow through is provided inside the cylinder body 10. The magnetic rod 20 is arranged in the flow channel, and the magnetic rod 20 is used to adsorb magnetic particles in the slurry. The flow disturbing frame 30 is located between the cylinder body 10 and the magnetic rod 20, the flow disturbing frame 30 is arranged around the magnetic rod 20, and the flow disturbing frame 30 is used to change the flow path of the slurry.

[0052] Magnetic particles are particles with magnetism. For example, they can be metal particles (such as Fe, Ni, Co, etc.), ferrimagnetic ferrites (such as Fe3O4, etc.), alloys, etc. Magnetic particles will be adsorbed by the magnetic rod 20 in the magnetic field formed by the magnetic rod 20.

[0053] The number of the cylinder bodies 10 in the filtering device can be one, or two, three or more. The radial cross-section of the cylinder body 10 can be circular, or can be polygonal (such as quadrilateral, pentagon, hexagon, etc.). Similarly, the radial cross-section of the magnetic rod 20 can be circular, or can be polygonal (such as quadrilateral, pentagon, hexagon, etc.). In some embodiments, one magnetic rod 20 is arranged inside one cylinder body 10; in other embodiments, multiple magnetic rods 20 are arranged inside one cylinder body 10.

[0054] In some embodiments, one flow disturbing frame 30 is arranged around one magnetic rod 20; in other embodiments, multiple flow disturbing frames 30 are arranged around the magnetic rod 20, and the multiple flow disturbing frames 30 are arranged along the axial direction of the magnetic rod.

[0055] The flow disturbing frame 30 includes a bracket 31 and multiple flow disturbing components 32. The multiple flow disturbing components 32 are arranged on the bracket 31 along the axial direction of the magnetic rod 20, and two adjacent flow disturbing components 32 are staggeredly arranged in the direction around the magnetic rod 20. Exemplarily, the flow disturbing component 32 can be rod-shaped, or can be plate-shaped, or can also be other shapes such as protrusions that can block the flow of the slurry.

[0056] In the above embodiments, the staggered arrangement of two adjacent flow disturbing components 32 on the flow disturbing frame 30 in the direction around the magnetic rod 20 can block the laminar flow of the slurry, change the flow path of the slurry, and cause turbulence of the slurry at the blocked position. By arranging the flow disturbing frame 30 in the flow channel between the cylinder body 10 and the magnetic rod 20, the path length of the slurry flow is increased, so that turbulence is generated during the flow of the slurry. Compared with the related art where only laminar flow exists during the flow of the slurry, the probability that the magnetic particles in the slurry contact the magnetic rod is increased, thereby improving the demagnetization effect of the filtering device.

[0057] In some embodiments, the flow disturbing component 32 includes multiple flow disturbing plates 321, and the multiple flow disturbing plates 321 are arranged at intervals in the direction around the magnetic rod 20.

[0058] Exemplarily, the spoiler 321 can be a flat plate, an arc-shaped plate, or a wavy plate; the spoiler 321 can extend in a direction perpendicular to the axial direction of the magnetic rod 20, can also extend in the direction of the slurry flowing into the cylinder body 10, or can also extend in the direction of the slurry flowing out of the cylinder body 10.

[0059] In the above embodiments, using the spoiler 321 as the spoiler assembly can better block the flow of the slurry, change the flow path of the slurry, and cause the slurry to generate turbulence at the blocked location. Arranging a plurality of spoilers 321 at intervals in the direction around the magnetic rod 20 can increase the path length of the slurry flow at each corresponding position where the spoiler 321 is provided in the circumferential direction of the magnetic rod 20, so that at each corresponding position where the spoiler 321 is provided, the slurry can generate turbulence when blocked by the spoiler 321, increasing the probability that the magnetic particles in the slurry in the entire flow channel of the cylinder body 10 come into contact with the magnetic rod, thereby further improving the demagnetization effect of the filtering device.

[0060] In some embodiments, the spoiler 321 is configured to extend in the direction of the slurry flowing into the cylinder body 10.

[0061] In the above embodiments, setting the spoiler 321 to extend in the direction of the slurry flowing into the cylinder body 10 can further improve the blocking effect of the spoiler assembly 32 on the slurry flow, causing the slurry to generate stronger turbulence during the flow process, thereby further increasing the probability that the magnetic particles in the slurry come into contact with the magnetic rod and improving the demagnetization effect of the filtering device.

[0062] In some embodiments, the bracket 31 includes a plurality of main body portions 312 and a connecting portion 311. The plurality of main body portions 312 are distributed along the axial direction of the magnetic rod 20, and the spoiler assembly 32 is provided on the main body portion 312. The connecting portion 311 is used to connect the plurality of main body portions 312.

[0063] The main body portion 312 is arranged around the magnetic rod 20, and the cross-sectional shape of the main body portion 312 in the radial direction of the magnetic rod 20 and the radial cross-sectional shape of the magnetic rod 20 can be adapted to each other. Exemplarily, when the radial cross-section of the magnetic rod 20 is circular, the cross-sectional shape of the main body portion 312 in the radial direction of the magnetic rod 20 is also circular; when the radial cross-section of the magnetic rod 20 is polygonal, the cross-sectional shape of the main body portion 312 in the radial direction of the magnetic rod 20 is also polygonal. The plurality of main body portions 312 can be connected by one connecting portion 311 or can be connected by a plurality of connecting portions 311.

[0064] In some embodiments, under the impact of the continuously flowing slurry, in order to ensure the stable installation of the spoiler frame 30 in the cylinder body 10 to ensure the blocking effect of the spoiler assembly 32 on the slurry, the outer side wall of the main body portion 312 of the bracket 31 is closely fitted with the inner side wall of the cylinder body 10.

[0065] In the above embodiments, a plurality of main body portions 312 are arranged along the axial direction of the magnetic rod 20, which facilitates the spaced and offset arrangement of the spoiler assembly 32 along the axial direction of the magnetic rod 20, thereby improving the blocking effect of the spoiler assembly 32 on the slurry, enhancing the probability that the magnetic particles in the slurry come into contact with the magnetic rod, and improving the demagnetization effect of the filtering device. Arranging the connecting portion 311 to connect the plurality of main body portions 312 facilitates the formation of the spoiler frame 30 as a whole, which is convenient for production and installation.

[0066] Referring to Figure 4 , in some embodiments, the spoiler plate 321 includes a first end 3201 and a second end 3202 disposed opposite to the first end 3201. The first end 3201 is used to connect to the main body portion 312. The spoiler plate 321 is configured to extend from the first end 3201 to the second end 3202 in the direction of the slurry flowing into the cylinder 10.

[0067] To improve the convenience of disassembling and assembling the magnetic rod 20 relative to the spoiler frame, facilitate the flow and generation of turbulence of the slurry, and at the same time ensure the blocking effect of the spoiler plate 321 on the slurry flow, there is an appropriate gap between the second end 3202 of the spoiler plate 321 and the magnetic rod 20. Exemplarily, this gap can be 1 mm - 3 mm.

[0068] In the above embodiments, arranging the first end 3201 of the spoiler plate 321 to be connected to the main body portion 312 helps the spoiler assembly 32 to be connected to the bracket 31 so that the spoiler frame 30 is formed as a whole, which is convenient for production and installation. Arranging the spoiler plate 321 to be configured to extend from the first end 3201 to the second end 3202 in the direction of the slurry flowing into the cylinder 10 can further improve the blocking effect of the spoiler plate 321 on the slurry flow, causing stronger turbulence to occur during the slurry flow, thereby further increasing the probability that the magnetic particles in the slurry come into contact with the magnetic rod and improving the demagnetization effect of the filtering device.

[0069] In some embodiments, the ratio of the length of the first end 3201 in the direction around the magnetic rod 20 to the circumference of the main body portion 312 is greater than or equal to 0.16 and less than or equal to 0.5. Exemplarily, the ratio of the length of the first end 3201 in the direction around the magnetic rod 20 to the circumference of the main body portion 312 can be 0.17, 0.19, 0.22, 0.25, 0.28, 0.31, 0.33, 0.36, 0.39, 0.42, 0.44, 0.47 or 0.50.

[0070] The length of the first end 3201 in the direction around the magnetic bar 20 is the length of the connection between the spoiler 321 and the main body 312 in the direction around the magnetic bar 20. By way of example, when the first end 3201 of the spoiler 321 is a straight edge, the length of the first end 3201 in the direction around the magnetic bar 20 is the side length of the straight edge; when the first end 3201 of the spoiler 321 is an arc edge, the length of the first end 3201 in the direction around the magnetic bar 20 is the arc length of the arc edge; when the first end 3201 of the spoiler 321 is wavy, the length of the first end 3201 in the direction around the magnetic bar 20 is the length after stretching the wavy shape into a straight edge; when the first end 3201 of the spoiler 321 is of other shapes, the length of the first end 3201 in the direction around the magnetic bar 20 is the corresponding length after stretching the other shape into a straight edge.

[0071] The perimeter of the main body 312 is the perimeter of the main body 312 along the circumferential direction of the magnetic bar 20. By way of example, when the cross-sectional shape of the main body 312 in the radial direction of the magnetic bar 20 is circular, the perimeter of the main body 312 is the perimeter of the circular cross-section; when the cross-sectional shape of the main body 312 in the radial direction of the magnetic bar 20 is polygonal, the perimeter of the main body 312 is the perimeter of the polygonal cross-section.

[0072] In the above embodiments, by setting the ratio of the length of the first end 3201 in the direction around the magnetic bar 20 to the perimeter of the main body 312 to be greater than or equal to 0.16, the spoiler 321 has a relatively sufficient configuration amount in the entire circumferential direction of the main body 312, which can ensure that the spoiler 321 has a sufficient blocking effect on the slurry flow to improve the demagnetization effect of the filtering device; by setting the ratio of the length of the first end 3201 in the direction around the magnetic bar 20 to the perimeter of the main body 312 to be less than or equal to 0.5, the entire circumferential direction of the main body 312 has relatively appropriate void space, ensuring that the slurry can flow relatively smoothly in the cylinder 10.

[0073] In some embodiments, the magnetic bar 20 includes a plurality of magnetic blocks 21 arranged along the axial direction of the magnetic bar 20. The spoiler 321 is configured to extend towards the contact between adjacent magnetic blocks 21. In some embodiments, the contact between adjacent magnetic blocks 21 along the axial direction of the magnetic bar 20 is of the same polarity, that is, the N poles of adjacent magnetic blocks 21 are in contact or the S poles of adjacent magnetic blocks 21 are in contact. In order to concentrate and guide the magnetic field and enhance the intensity and stability of the magnetic field, in some embodiments, a magnetic conductive sheet is further provided between adjacent magnetic blocks 21.

[0074] The magnetic fields at both poles of the magnetic block 21 are relatively strong, while the magnetic field in the middle is relatively weak. Therefore, the magnetic field intensity at the contact of adjacent magnetic blocks 21 is relatively stronger. In the above embodiments, by arranging the spoiler 321 to extend towards the contact of adjacent magnetic blocks 21, more turbulence generated by the blocking of the spoiler 321 can be produced at the contact of the magnetic blocks 21, so as to utilize the relatively stronger magnetic field intensity to adsorb the magnetic particles in the slurry, thereby improving the demagnetization effect of the filtering device.

[0075] Referring to Figures 1-2 and Figures 5-8 , in some embodiments, the filtering device further includes a housing 40 and a cover 50.

[0076] The housing 40 is used to accommodate the cylinder body 10, and the housing 40 is provided with a discharge port 41. The discharge port 41 is used for the filtered slurry to flow out. One cylinder body 10 or multiple cylinder bodies 10 can be accommodated in the housing 40.

[0077] The cover 50 is detachably connected to the housing 40, and the cover 50 is provided with a feed port 51. The feed port 51 is used for the slurry to be filtered to flow in. In some embodiments, the cover 50 is provided with a protrusion 52, and the housing is provided with a groove 42. The protrusion 52 and the groove 42 cooperate with each other to realize the detachable connection of the cover 50 to the housing 40; in other embodiments, the cover 50 is provided with a groove 42, and the housing 40 is provided with a protrusion 52. The groove 42 and the protrusion 52 cooperate with each other to realize the detachable connection of the cover 50 to the housing 40. For example, the protrusion 52 and the groove 42 can be cooperated by screw connection, or by rotary snap fit, or by rotary convex-concave fit.

[0078] In some embodiments, the cover 50 further includes a clamped portion 53, and the clamped portion 53 is provided with a plurality of holes to facilitate the clamping by the clamping jaws, so that the disassembly and installation of the cover 50 can be completed by mechanical clamping jaws.

[0079] In the above embodiments, by arranging the filtering device with a housing 40 for accommodating the cylinder body 10, and the cover 50 and the housing 40 are respectively provided with a feed port 51 and a discharge port 41, the filtering device can be provided with multiple cylinder bodies 10 to increase the filtering flow rate of the filtering device. The slurry to be filtered can flow in from the feed port 51 located on the cover 50, and the filtered slurry can flow out from the discharge port 41 located on the housing 40. By arranging the cover 50 to be detachably connected to the housing 40, the magnetic rod 20 arranged in the housing 40 can be taken out for cleaning, so as to facilitate the maintenance of the filtering device.

[0080] Referring to Figure 5 , 7-8. In some embodiments, the housing 40 includes a first end plate 43. The first end plate 43 includes a first surface 430 and a retaining ring 431 protruding relative to the first surface 430. The retaining ring 431 is used to cooperate with the inner sidewall of the cover 50 to achieve sealing. In some embodiments, the retaining ring 431 is a continuous annular structure; in other embodiments, the retaining ring 431 is a discontinuous multi-segment annular structure.

[0081] In the above embodiments, by providing the first end plate 43 of the housing 40 with a retaining ring 431 for cooperating with the inner sidewall of the cover 50, the sealing effect between the cover 50 and the housing 40 in the filtering device can be improved, and the possibility of slurry leakage during the filtering process can be reduced.

[0082] In some embodiments, the first end plate 43 further includes a sealing groove 432 recessed relative to the first surface 430, and the sealing groove 432 is used to accommodate a seal 433.

[0083] In some embodiments, corresponding to the sealing groove 432 located on the first end plate 43, the cover 50 may also be provided with a corresponding groove structure, and the sealing groove 432 and the groove structure cooperate with each other to form a space for accommodating the seal 433. In some embodiments, the seal 433 is an O-ring.

[0084] In the above embodiments, by providing the first end plate 43 of the housing 40 with a sealing groove 432 for accommodating the seal 433, the sealing effect between the cover 50 and the housing 40 in the filtering device can be further improved, and the possibility of slurry leakage during the filtering process can be reduced.

[0085] In some embodiments, the housing 40 further includes a second end plate 44, and one end of the magnetic bar 20 is disposed on the mounting seat 441 on the second end plate 44. By disposing one end of the magnetic bar 20 on the mounting seat 441 on the second end plate 44, it is convenient to disassemble, clean, and install the magnetic bar 20.

[0086] Refer to Figures 1-5 The filtering process of the filtering device is briefly described as follows with reference to the structural schematic diagram shown: The slurry flows into the filtering device from the feed port 51 located on the housing 40 and enters the flow channel inside the cylinder 10 via the first end plate 43. The slurry is blocked by the turbulence components 32 provided on the turbulence frame 30 between the cylinder 10 and the magnetic bar 20, thereby changing the flow path, and turbulence is generated near the blocking position. The turbulence causes the slurry to tumble and mix inside, and the blocking makes the flow path of the slurry longer, so that the magnetic particles in the slurry are more fully adsorbed by the magnetic bar 20. Finally, the filtered slurry flows out from the discharge port 41 located on the housing 40. In some embodiments, in order to further improve the demagnetization effect, multiple groups of filtering devices can be connected in series, so that the slurry flows through multiple groups of filtering devices in sequence to achieve full filtering of the magnetic particles in the slurry.

[0087] The cleaning process of the filtering device is briefly described as follows: Compressed air is introduced through the feed port 51 of the cover body 50 to empty the slurry in the filtering device. The first mechanical gripper grips the gripped portion 53 of the cover body 50 and rotates to unscrew the cover body 50. The second mechanical gripper takes out the magnetic rod 20 in the cylinder body 10 and completes the cleaning work of the magnetic rod 20. After that, the second mechanical gripper reinserts the cleaned magnetic rod 20 into the cylinder body 10, and one end of the magnetic rod 20 is installed on the mounting seat 441 of the second end plate 44 of the housing 40. Finally, the first mechanical gripper rotates and tightens the cover body 50 onto the housing 40 to complete the installation of the cover body 50. Among them, the retaining ring 431 of the first end plate 43 and the inner side wall of the cover body 50 form a first sealing and leakage prevention structure through interference fit, and the sealing member 433 located in the sealing groove 432 forms a second sealing and leakage prevention structure.

[0088] Refer to the appendix again Figures 1-8 According to some embodiments of the present application, a filtering device for filtering magnetic particles in a slurry is provided, including a cover body 50, a housing 40, a cylinder body 10, a magnetic rod 20, and a flow disturbance frame 30.

[0089] The cover body 50 is detachably connected to the housing 40, and the cover body 50 is provided with a feed port 51 for the slurry to be filtered to flow in. The housing 40 is provided with a discharge port 41 for the filtered slurry to flow out. The housing 40 includes a first end plate 43, and the first end plate 43 includes a first surface 430, a retaining ring 431 protruding relative to the first surface 430, and a sealing groove 432 recessed relative to the first surface 430. The retaining ring 431 is used to cooperate with the inner side wall of the cover body 50 to achieve sealing, and the sealing groove 432 is used to accommodate the sealing member 433.

[0090] The cylinder body 10 is accommodated in the housing 40, and a flow channel for the slurry to flow through is provided in the cylinder body 10. The flow disturbance frame 30 is located between the cylinder body 10 and the magnetic rod 20, the flow disturbance frame 30 is arranged around the magnetic rod 20, and the flow disturbance frame 30 is used to change the flow path of the slurry. The flow disturbance frame 30 includes a bracket 31 and a plurality of flow disturbance components 32.

[0091] The bracket 31 includes a plurality of main body portions 312 and a connecting portion 311. The plurality of main body portions 312 are distributed along the axial direction of the magnetic rod 20, and the flow disturbance components 32 are arranged on the main body portions 312. The connecting portion 311 is used to connect the plurality of main body portions 312.

[0092] The plurality of flow disturbance components 32 are arranged on the bracket 31 along the axial direction of the magnetic rod 20, and two adjacent flow disturbance components 32 are staggeredly arranged in the direction around the magnetic rod 20. The flow disturbance component 32 includes a plurality of flow disturbance plates 321, and the plurality of flow disturbance plates 321 are spaced apart in the direction around the magnetic rod 20.

[0093] The spoiler 321 includes a first end 3201 and a second end 3202 disposed opposite to the first end 3201. The first end 3201 is used to connect to the main body 312. The spoiler 321 is configured to extend from the first end 3201 to the second end 3202 in the direction of the slurry flowing into the cylinder 10. The ratio of the length of the first end 3201 in the direction around the magnetic bar 20 to the circumference of the main body 312 is greater than or equal to 0.16 and less than or equal to 0.5.

[0094] The magnetic bar 20 is disposed in the flow channel. The magnetic bar 20 is used to adsorb magnetic particles in the slurry. The magnetic bar 20 includes a plurality of magnetic blocks 21 arranged along the axial direction of the magnetic bar 20. The spoiler 321 is configured to extend towards the contact portion of adjacent magnetic blocks 21.

[0095] In the above filtering device, by setting the cover body 50 to be detachably connected to the housing 40, the cylinder 10 is accommodated in the housing 40, a flow channel for the slurry to flow through is provided in the cylinder 10, the magnetic bar 20 is disposed in the flow channel, and the spoiler frame 30 is located between the cylinder 10 and the magnetic bar 20, the magnetic bar of the filtering device can be taken out for easy cleaning, improving the maintainability of the filtering device. By setting the spoiler frame 30 to have a plurality of staggered spoiler components 32, the spoiler components include a plurality of spoilers 321 spaced apart in the direction around the magnetic bar 20, and the spoiler 321 is configured to extend in the direction of the slurry flowing into the cylinder 10 and towards the contact portion of adjacent magnetic blocks 21, the flow path of the slurry in the flow channel is changed, the path length of the slurry flow is increased, so that stronger turbulence is generated at the contact portion of adjacent magnetic blocks 21, the probability of the slurry magnetic particles contacting the magnetic bar is increased, and at the same time, the demagnetization effect of the filtering device is improved by using the strong magnetic field at the contact portion of the magnetic blocks 21.

[0096] The above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application. The above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A filtering device for filtering magnetic particles in a slurry, characterized in that, Comprising: A cylinder body (10) with a flow channel provided inside for the slurry to flow through; A magnetic bar (20) disposed within the flow channel, the magnetic bar (20) being used to adsorb the magnetic particles in the slurry; A turbulence rack (30) located between the cylinder body (10) and the magnetic bar (20), the turbulence rack (30) being arranged around the magnetic bar (20), the turbulence rack (30) being used to change the flow path of the slurry; wherein, the turbulence rack (30) includes a bracket (31) and a plurality of turbulence components (32), the plurality of turbulence components (32) are arranged on the bracket (31) along the axial direction of the magnetic bar (20), and adjacent two of the turbulence components (32) are staggeredly arranged in the direction around the magnetic bar (20).

2. The filtering device according to claim 1, wherein The turbulence component (32) includes a plurality of turbulence plates (321), and the plurality of turbulence plates (321) are spaced apart in the direction around the magnetic bar (20).

3. The filtering device according to claim 2, wherein The turbulence plate (321) is configured to extend in the direction of the inflow of the slurry into the cylinder body (10).

4. The filtering device according to claim 3, characterized in that, The bracket (31) includes: A plurality of main body parts (312) distributed along the axial direction of the magnetic bar (20), and the turbulence component (32) is arranged on the main body part (312); and A connecting part (311) for connecting the plurality of main body parts (312).

5. The filtering device according to claim 4, wherein, The turbulence plate (321) includes: A first end (3201) for connecting with the main body part (312); and A second end (3202) disposed opposite to the first end (3201), the turbulence plate (321) being configured to extend from the first end (3201) to the second end (3202) in the direction of the inflow of the slurry into the cylinder body (10).

6. The filtering device according to claim 5, wherein, The ratio of the length of the first end (3201) in the direction around the magnetic bar (20) to the perimeter of the main body part (312) is greater than or equal to 0.16 and less than or equal to 0.

5.

7. The filtering device according to any one of claims 2-6, wherein The magnetic bar (20) includes a plurality of magnetic blocks (21) arranged along the axial direction of the magnetic bar (20); The turbulence plate (321) is configured to extend towards the contact position of adjacent magnetic blocks (21).

8. The filtering device according to any one of claims 1-6, wherein It further includes a housing (40) and a cover body (50), the housing (40) is used to accommodate the cylinder body (10), the cover body (50) is detachably connected to the housing (40), the cover body (50) is provided with a feed port (51), and the housing (40) is provided with a discharge port (41).

9. The filtering device according to claim 8, wherein The housing (40) includes a first end plate (43), the first end plate (43) includes a first surface (430) and a retaining ring (431) protruding relative to the first surface (430), and the retaining ring (431) is used to cooperate with the inner side wall of the cover body (50) to achieve sealing.

10. The filtering device according to claim 9, wherein The first end plate (43) further includes a sealing groove (432) recessed relative to the first surface (430), and the sealing groove (432) is used to accommodate a sealing member (433).

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