Magnetic separation mechanism

Abstract

The invention belongs to the technical field of preparation equipment, and discloses a magnetic separation mechanism which comprises a driving assembly and at least two magnetic separation devices. The magnetic separation device comprises a magnetic separation barrel, a magnetic suction assembly and a material guide assembly. The magnetic separation cylinders of the at least two magnetic separation devices are sequentially arranged at intervals in a sleeved mode, the magnetic separation cylinders can contain mineral aggregates, and the mineral aggregates can move in the axial direction of the magnetic separation cylinders and sequentially move in the at least two magnetic separation cylinders from inside to outside. The magnetic attraction assemblies are correspondingly arranged on one part of the outer side of the magnetic separation barrel in the circumferential direction at intervals, and the magnetic attraction assemblies attract magnetic materials in the mineral aggregates to the inner wall of the magnetic separation barrel. The material guiding assembly corresponds to the edge of the magnetic attraction assembly, extends out of the magnetic separation barrel and can guide out the magnetic materials disengaged from the inner wall of the magnetic separation barrel. The driving assembly can drive the at least two magnetic separation barrels to rotate around the axes of the magnetic separation barrels relative to the corresponding magnetic attraction assemblies. The magnetic separation mechanism can prolong the magnetic separation retention time of mineral aggregate and improve the magnetic separation effect.

Description

Technical Field

[0001] The present invention relates to the technical field of ore dressing equipment, and in particular to a magnetic separation mechanism. Background Art

[0002] Laterite nickel ore is a loose clay-like multi-mineral aggregate formed by long-term weathering, leaching, impregnation and alteration of nickel-bearing olivine bedrock in tropical or subtropical regions, accompanied by metal components such as nickel, cobalt, chromium, magnesium and aluminum. High-pressure acid leaching is one of the mainstream smelting processes of laterite nickel ore. Before acid leaching, the ore needs to go through ore washing, gravity separation, ball milling, magnetic separation and thickening to form a slurry to be acid-leached. Among them, the function of the magnetic separation process is to screen out the chromium ore in the laterite nickel ore. At present, a magnetic separator is generally used for the above magnetic separation process.

[0003] The magnetic separator in the prior art generally includes an outer cylinder, an inner cylinder and a magnetic medium. The outer cylinder is a fixed hollow cylinder, the inner cylinder is a rotating hollow cylinder, and the magnetic medium is fixed between the inner cylinder and the outer cylinder. When the ore to be magnetically separated passes through the inner cylinder, the chromium ore and other materials with magnetic properties are adsorbed on the wall of the inner cylinder under the action of the rotation of the inner cylinder and the adsorption of the magnetic medium, and are separated from the rest of the ore.

[0004] However, in the magnetic separation process, the residence time of the ore in the above-mentioned magnetic separator is insufficient, resulting in poor magnetic separation effect.

[0005] Therefore, a magnetic separation mechanism is urgently needed to solve the above problems. Summary of the invention

[0006] The object of the present invention is to provide a magnetic separation mechanism, by which the residence time of mineral materials can be prolonged and the magnetic separation effect can be improved.

[0007] To achieve this object, the present invention adopts the following technical solutions:

[0008] A magnetic separation mechanism comprises: a driving assembly and at least two magnetic separation devices, wherein the magnetic separation devices comprise:

[0009] A magnetic separation cylinder, wherein at least two magnetic separation cylinders of the magnetic separation device are sequentially spaced and sleeved, and the magnetic separation cylinder can accommodate mineral materials, and the mineral materials can move along the axial direction of the magnetic separation cylinder and move sequentially in at least two magnetic separation cylinders from the inside to the outside;

[0010] A magnetic attraction component is arranged correspondingly and at intervals on a part of the outer side of the magnetic separation cylinder in the circumferential direction, and the magnetic attraction component attracts the magnetic material in the mineral material to the inner wall of the magnetic separation cylinder;

[0011] A material guide component, corresponding to the edge of the magnetic attraction component, extending from the magnetic separation cylinder, and capable of guiding out the magnetic material separated from the inner wall of the magnetic separation cylinder;

[0012] The driving assembly can drive at least two of the magnetic separation cylinders to rotate around their own axes relative to the corresponding magnetic attraction assemblies.

[0013] As a preferred solution of the magnetic separation mechanism provided by the present invention, there are two magnetic separation devices, and the magnetic separation device located on the outside includes a magnetic separation outer cylinder, an outer magnetic attraction component and an outer cylinder material guide component, the outer magnetic attraction component corresponds to and is spaced apart from a part of the outer side of the magnetic separation outer cylinder in the circumferential direction, the outer cylinder material guide component corresponds to the edge of the outer magnetic attraction component and extends from the magnetic separation outer cylinder, and the driving component is connected to the magnetic separation outer cylinder and can drive the magnetic separation outer cylinder to rotate relative to the outer magnetic attraction component;

[0014] The magnetic separation device located on the inner side includes a magnetic separation inner cylinder, an inner magnetic attraction component and an inner cylinder material guide component. The inner magnetic attraction component corresponds to and is spaced apart from a part of the outer side of the magnetic separation inner cylinder in the circumferential direction. The inner cylinder material guide component corresponds to the edge of the inner magnetic attraction component and extends from the magnetic separation inner cylinder. The driving component is connected to the magnetic separation inner cylinder and can drive the magnetic separation inner cylinder to rotate relative to the inner magnetic attraction component.

[0015] As a preferred solution of the magnetic separation mechanism provided by the present invention, the external magnetic attraction assembly includes an external fixing plate and a plurality of outer cylinder magnets, the external fixing plate is arranged corresponding to a portion of the outer side of the magnetic separation outer cylinder in the circumferential direction, and the plurality of outer cylinder magnets are fixed to the side of the external fixing plate facing the magnetic separation outer cylinder at intervals;

[0016] The inner magnetic attraction assembly includes an inner fixed plate and a plurality of inner cylinder magnets. The inner fixed plate extends between the magnetic separation outer cylinder and the magnetic separation inner cylinder, and is arranged corresponding to a part of the outer side of the magnetic separation inner cylinder in the circumferential direction. The plurality of inner cylinder magnets are fixed to the side of the inner fixed plate facing the magnetic separation inner cylinder at intervals.

[0017] As a preferred solution of the magnetic separation mechanism provided by the present invention, the outer fixing plate is an arc-shaped structure that matches the shape of a portion of the magnetic separation outer cylinder in the circumferential direction.

[0018] As a preferred solution of the magnetic separation mechanism provided by the present invention, the outer cylinder material guide assembly includes an outer cylinder flushing pipe and an outer cylinder magnetic material outlet component, one end of the outer cylinder flushing pipe extends axially into the magnetic separation outer cylinder and is arranged corresponding to the edge of the outer magnetic attraction assembly, and the outer cylinder flushing pipe is provided with a plurality of first spray holes facing the inner wall of the magnetic separation outer cylinder, and the outer cylinder magnetic material outlet component is arranged below the outer cylinder flushing pipe for receiving and outleting the magnetic material flushed down.

[0019] As a preferred solution of the magnetic separation mechanism provided by the present invention, the outer cylinder magnetic material outlet member is a plate-shaped structure, and the outer cylinder magnetic material outlet member is provided with an outer cylinder material guide groove along its extension direction, and the bottom of the outer cylinder material guide groove is inclined toward the outside of the magnetic separation outer cylinder.

[0020] As a preferred solution of the magnetic separation mechanism provided by the present invention, the inner cylinder material guide assembly includes an inner cylinder flushing pipe and an inner cylinder magnetic material outlet component, one end of the inner cylinder flushing pipe extends axially into the magnetic separation inner cylinder and is arranged corresponding to the edge of the inner magnetic suction assembly, and the inner cylinder flushing pipe is provided with a plurality of second spray holes facing the inner wall of the magnetic separation inner cylinder, and the inner cylinder magnetic material outlet component is arranged below the inner cylinder flushing pipe for receiving and outleting the magnetic material flushed down.

[0021] As a preferred solution of the magnetic separation mechanism provided by the present invention, the inner cylinder magnetic material outlet member is a plate-shaped structure, and the inner cylinder magnetic material outlet member is provided with an inner cylinder material guide groove along its extension direction, and the bottom of the inner cylinder material guide groove is inclined toward the outside of the magnetic separation inner cylinder.

[0022] As a preferred solution of the magnetic separation mechanism provided by the present invention, the end of the magnetic separation inner cylinder extending into the magnetic separation outer cylinder is the inner cylinder discharge port, and the end of the magnetic separation outer cylinder corresponding to the inner cylinder discharge port is provided with an observation port.

[0023] As a preferred solution of the magnetic separation mechanism provided by the present invention, the magnetic separation device located on the inner side also includes an inner cylinder support frame, which extends into the magnetic separation outer cylinder and is connected to the magnetic separation inner cylinder, and the magnetic separation inner cylinder can rotate relative to the inner cylinder support frame.

[0024] Beneficial effects of the present invention:

[0025] The magnetic separation mechanism provided by the present invention includes a driving component and at least two magnetic separation devices. The magnetic separation device includes a magnetic separation cylinder, a magnetic attraction component and a material guide component. The magnetic separation cylinders of at least two magnetic separation devices are sequentially spaced and sleeved, and the magnetic separation cylinders can accommodate mineral materials, and the mineral materials can move along the axial direction of the magnetic separation cylinder, and move in at least two magnetic separation cylinders from the inside to the outside in sequence. The magnetic attraction component corresponds to and is spaced at a part of the outer side of the magnetic separation cylinder in the circumferential direction, and the magnetic attraction component adsorbs the magnetic material in the mineral materials to the inner wall of the magnetic separation cylinder, and the driving component can drive at least two magnetic separation cylinders to rotate around their own axis relative to the corresponding magnetic attraction component. The mineral materials will first enter the innermost magnetic separation cylinder for magnetic separation, and then flow to the outer layer of the magnetic separation cylinder for magnetic separation again, that is, in the process of moving in at least two magnetic separation cylinders from the inside to the outside in sequence, the mineral materials can be magnetically separated for multiple times, which prolongs the path and residence time of the mineral materials in the magnetic separation mechanism. After multiple magnetic separations, the mineral materials can effectively improve the magnetic separation effect. The material guide component corresponds to the edge of the magnetic attraction component, extends from the magnetic separation cylinder, and can guide out the magnetic material that has separated from the inner wall of the magnetic separation cylinder. Through the material guide component, the magnetic material after magnetic separation can be guided out of the magnetic separation mechanism layer by layer to avoid affecting the magnetic separation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0027] Figure 1 is a cross-sectional schematic diagram of a magnetic separation mechanism provided by an embodiment of the present invention;

[0028] Figure 2 It is an assembly diagram of a magnetic separation outer cylinder, an outer cylinder material guiding assembly, a magnetic separation inner cylinder and an inner cylinder material guiding assembly provided in an embodiment of the present invention.

[0029] In the figure:

[0030] 1. Magnetic separation outer cylinder; 11. Observation port; 12. Outlet of outer cylinder; 13. Support frame;

[0031] 2. External magnetic attraction assembly; 21. External fixing plate; 22. External cylinder magnet;

[0032] 3. Outer cylinder material guide assembly; 31. Outer cylinder flushing pipe; 32. Outer cylinder magnetic material outlet piece;

[0033] 4. Magnetic separation inner cylinder; 41. Inner cylinder outlet; 42. Inner cylinder inlet;

[0034] 5. Inner magnetic attraction assembly; 51. Inner fixing plate; 52. Inner cylinder magnet;

[0035] 6. Inner cylinder material guide assembly; 61. Inner cylinder flushing pipe; 62. Inner cylinder magnetic material outlet piece;

[0036] 7. Driving assembly; 71. Outer cylinder driver; 72. Outer cylinder gear ring; 73. Inner cylinder driver; 74. Inner cylinder gear ring;

[0037] 8. Inner tube support frame; 81. Sealed bearing. DETAILED DESCRIPTION

[0038] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0042] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or are the positions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0043] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", and "fix" 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 a mechanical connection or an electrical connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0045] In this embodiment, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in the present invention generally indicates that the associated objects before and after are in an "or" relationship.

[0046] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0047] Figure 1 A cross-sectional schematic diagram of a magnetic separation mechanism provided by an embodiment of the present invention is shown; Figure 2 The schematic diagram of the assembly of the magnetic separation outer cylinder, the outer cylinder material guide assembly, the magnetic separation inner cylinder and the inner cylinder material guide assembly provided by the embodiment of the present invention is shown. Figure 1 and Figure 2 This embodiment provides a magnetic separation mechanism. The magnetic separation mechanism includes a driving component 7 and at least two magnetic separation devices. The magnetic separation device includes a magnetic separation cylinder, a magnetic attraction component and a material guide component.

[0048] Specifically, the magnetic separation cylinders of at least two magnetic separation devices are arranged in sequence at intervals, and the magnetic separation cylinders can accommodate mineral materials, and the mineral materials can move along the axial direction of the magnetic separation cylinders, and move in at least two magnetic separation cylinders from the inside to the outside in sequence. The driving assembly 7 can drive the magnetic separation cylinder of each of the above-mentioned magnetic separation devices to rotate around its own axis relative to the corresponding magnetic attraction assembly. It should be noted that the axial direction of the magnetic separation cylinder is perpendicular to the direction of gravity. The magnetic attraction assembly corresponds to and is arranged at intervals on a part of the outer side of the magnetic separation cylinder in the circumferential direction, and the magnetic attraction assembly adsorbs the magnetic material in the mineral material to the inner wall of the magnetic separation cylinder. The material guide assembly corresponds to the edge of the magnetic attraction assembly, extends from the magnetic separation cylinder, and can guide out the magnetic material that has separated from the inner wall of the magnetic separation cylinder. Through the above arrangement, the mineral material will first enter the innermost magnetic separation cylinder for magnetic separation, and then flow to the outer magnetic separation cylinder for magnetic separation again. That is to say, in the process of moving from the inside to the outside in at least two magnetic separation cylinders in sequence, the mineral material can undergo multiple magnetic separations, thereby extending the path and residence time of the mineral material in the magnetic separation mechanism. After multiple magnetic separations, the magnetic separation effect can be effectively improved.

[0049] In this embodiment, the magnetic separation device is specifically two, and the magnetic separation device located on the outside includes a magnetic separation outer cylinder 1, an outer magnetic attraction component 2, and an outer cylinder material guide component 3. The outer magnetic attraction component 2 corresponds to and is spaced apart from a portion of the outer side of the magnetic separation outer cylinder 1 in the circumferential direction, the outer cylinder material guide component 3 corresponds to the edge of the outer magnetic attraction component 2, and is spaced apart, extending from the magnetic separation outer cylinder 1, and the drive component 7 is connected to the magnetic separation outer cylinder 1, and can drive the magnetic separation outer cylinder 1 to rotate relative to the outer magnetic attraction component 2. The magnetic separation device located on the inside includes a magnetic separation inner cylinder 4, an inner magnetic attraction component 5, and an inner cylinder material guide component 6, the inner magnetic attraction component 5 corresponds to and is spaced apart from a portion of the outer side of the magnetic separation inner cylinder 4 in the circumferential direction, the inner cylinder material guide component 6 corresponds to the edge of the inner magnetic attraction component 5, and is spaced apart, extending from the magnetic separation inner cylinder 4, the drive component 7 is connected to the magnetic separation inner cylinder 4, and can drive the magnetic separation inner cylinder 4 to rotate relative to the inner magnetic attraction component 5.

[0050] It should be noted that in other embodiments, the magnetic separation device can also be set to three, four or five, etc. according to the actual situation of the ore. The number is not limited in this embodiment. This embodiment only takes the setting of two magnetic separation devices as an example for explanation.

[0051] Specifically, the magnetic separation inner cylinder 4 coaxially extends into the magnetic separation outer cylinder 1, and one end of the magnetic separation inner cylinder 4 extending into the magnetic separation outer cylinder 1 is the inner cylinder discharge port 41, and the end of the magnetic separation inner cylinder 4 located outside the magnetic separation outer cylinder 1 is the inner cylinder feed port 42. An outer cylinder discharge port 12 is provided at one end of the magnetic separation outer cylinder 1 away from the inner cylinder discharge port 41, and an observation port 11 is provided at one end of the magnetic separation outer cylinder 1 corresponding to the inner cylinder discharge port 41. By setting the outer cylinder discharge port 12 and the inner cylinder discharge port 41 at intervals, the mineral material can form a longer magnetic separation path in the magnetic separation outer cylinder 1, thereby improving the magnetic separation effect. When the magnetic separation mechanism is in use, the internal condition of the magnetic separation outer cylinder 1 can be observed through the observation port 11 to determine whether the magnetic separation mechanism is working smoothly.

[0052] To be more specific, during the use of the magnetic separation mechanism provided in this embodiment, the ore to be magnetically separated is first introduced into the magnetic separation inner cylinder 4 through the inner cylinder feed port 42, and the magnetic material in the ore is adsorbed on the inner wall of the magnetic separation inner cylinder 4 under the action of the inner magnetic suction component 5. The inner wall of the magnetic separation inner cylinder 4 is a spiral structure, and the remaining ore can move toward the inner cylinder discharge port 41 along the spiral structure set on the inner wall during the rotation of the magnetic separation inner cylinder 4, and finally discharged into the magnetic separation outer cylinder 1. The magnetic separation inner cylinder 4 rotates so that the part corresponding to the inner magnetic suction component 5 rotates to the position corresponding to the inner cylinder guide component 6, and the magnetic material will be separated from the magnetic suction effect of the inner magnetic suction component 5, and collected and discharged by the inner cylinder guide component 6. The magnetic material in the ore entering the magnetic separation outer cylinder 1 will be adsorbed on the inner wall of the magnetic separation outer cylinder 1 under the action of the outer magnetic attraction component 2. The inner wall of the magnetic separation outer cylinder 1 is a spiral structure. The remaining ore can move toward the outer cylinder discharge port 12 along the spiral structure set on the inner wall during the rotation of the magnetic separation outer cylinder 1, and finally be discharged from the magnetic separation mechanism through the outer cylinder discharge port 12. The magnetic separation outer cylinder 1 rotates so that the part corresponding to the external magnetic attraction component 2 rotates to the position corresponding to the outer cylinder guide component 3. At this time, the magnetic material will be separated from the action of the external magnetic attraction component 2 and collected and discharged by the outer cylinder guide component 3.

[0053] Continue to refer to Figure 1 Of the two magnetic separation devices, the outer magnetic separation device further includes a support frame 13. The support frame 13 is disposed on the ground and is connected to the magnetic separation outer cylinder 1 through a bearing ring. The support frame 13 can form a rotation support for the magnetic separation outer cylinder 1.

[0054] Furthermore, of the two magnetic separation devices, the magnetic separation device located on the inner side further includes an inner cylinder support frame 8. The inner cylinder support frame 8 extends from the observation port 11 and the observation port 11 into the magnetic separation outer cylinder 1, and is connected to the magnetic separation inner cylinder 4, and the magnetic separation inner cylinder 4 can rotate relative to the inner cylinder support frame 8. The purpose of such a setting is to provide rotation support for the magnetic separation inner cylinder 4 so that it can rotate relative to the magnetic separation outer cylinder 1.

[0055] Specifically, there are multiple ways of rotationally connecting the inner cylinder support frame 8 and the magnetic separation inner cylinder 4. In this embodiment, a sealed bearing 81 is provided between the inner cylinder support frame 8 and the magnetic separation inner cylinder 4. The sealed bearing 81 includes a first part and a second part that are rotationally connected to each other, the first part is coaxially fixed to the magnetic separation inner cylinder 4, and the second part is fixed to the inner cylinder support frame 8.

[0056] Continue to refer to Figure 1 and Figure 2 The inner magnetic attraction component 5 includes an inner fixed plate 51 and a plurality of inner cylinder magnets 52. The inner fixed plate 51 extends from the outer cylinder discharge port 12 into between the magnetic separation outer cylinder 1 and the magnetic separation inner cylinder 4, and is arranged corresponding to a portion of the outer side of the magnetic separation inner cylinder 4 in the circumferential direction. The plurality of inner cylinder magnets 52 are fixed to the inner fixed plate 51 on the side facing the magnetic separation inner cylinder 4 at intervals. In actual use, the inner cylinder magnet 52 can produce a magnetic attraction to the magnetic material in the magnetic separation inner cylinder 4, and adsorb the magnetic material to the inner wall of the magnetic separation inner cylinder 4. The magnetic separation inner cylinder 4 rotates, and the non-magnetic material slides to the bottom of the magnetic separation inner cylinder 4 in the direction of gravity, while the magnetic material rotates with the magnetic separation inner cylinder 4 until it is transported to the position corresponding to the edge of the inner fixed plate 51, loses the magnetic attraction, and thus falls onto the inner cylinder guide component and is discharged.

[0057] Specifically, the portion of the inner fixing plate 51 corresponding to the magnetic separation inner cylinder 4 is bent into an arc shape that matches a portion of the outer side of the magnetic separation inner cylinder 4 in the circumferential direction. Through the above arrangement, it is possible to ensure that each inner cylinder magnet 52 is at the same distance from the bottom of the magnetic separation inner cylinder 4, and the magnetic force generated is the same, thereby ensuring the effect of magnetic separation.

[0058] More specifically, since the discharged material from the inner cylinder discharge port 41 is easy to splash into the space between the inner fixed plate 51 and the magnetic separation inner cylinder 4, and the magnetic material contained in the ore material will be adsorbed by the inner cylinder magnet 52, over time, it will form an accumulation on the surface of the inner cylinder magnet 52, affecting its magnetic attraction effect. Therefore, in this embodiment, the inner fixed plate 51 extends from the outer cylinder discharge port 12 into the magnetic separation outer cylinder 1, and the inner fixed plate 51 and the second part of the sealing bearing 81 are fixed to each other to prevent the discharged material from the inner cylinder discharge port 41 from splashing into the space between the inner fixed plate 51 and the magnetic separation inner cylinder 4.

[0059] Furthermore, the outer magnetic attraction component 2 includes an outer fixing plate 21 and a plurality of outer cylinder magnets 22. The outer fixing plate 21 is arranged corresponding to a portion of the outer side of the magnetic separation outer cylinder 1 in the circumferential direction, and a plurality of the outer cylinder magnets 22 are fixed to the side of the outer fixing plate 21 facing the magnetic separation outer cylinder 1 at intervals. The outer cylinder magnet 22 can produce a magnetic attraction to the magnetic material in the ore, and adsorb the magnetic material to the inner surface of the magnetic separation outer cylinder 1. In actual use, the outer cylinder magnet 22 can produce a magnetic attraction to the magnetic material in the magnetic separation outer cylinder 1, and adsorb the magnetic material to the inner wall of the magnetic separation outer cylinder 1. When the magnetic separation outer cylinder 1 rotates, the non-magnetic material can slide to the bottom of the magnetic separation outer cylinder 1 in the direction of gravity, and the magnetic material rotates with the magnetic separation outer cylinder 1 until it moves to a position corresponding to the edge of the outer fixing plate 21, loses the magnetic attraction, and thus falls onto the outer cylinder material guide component 3 and is discharged.

[0060] Specifically, the outer fixing plate 21 is an arc-shaped structure that matches the shape of a portion of the magnetic separation outer cylinder 1 in the circumferential direction. Through the above arrangement, it can be ensured that each outer cylinder magnet 22 is at the same distance from the bottom of the magnetic separation outer cylinder 1, and the magnetic force generated is the same, thereby ensuring the effect of magnetic separation.

[0061] Continue to refer to Figure 1 and Figure 2 In one embodiment, the outer cylinder material guide assembly 3 includes an outer cylinder flushing pipe 31 and an outer cylinder magnetic material outlet 32. One end of the outer cylinder flushing pipe 31 extends into the magnetic separation outer cylinder 1 along the axial direction and is arranged corresponding to the edge of the outer magnetic suction assembly 2. The outer cylinder flushing pipe 31 is provided with a plurality of first spray holes facing the inner wall of the magnetic separation outer cylinder 1. The outer cylinder magnetic material outlet 32 ​​is arranged below the outer cylinder flushing pipe 31 to receive and outlet the magnetic material washed down. On the one hand, the outer cylinder flushing pipe 31 can flush the magnetic material on the inner wall of the magnetic separation outer cylinder 1 into the outer cylinder magnetic material outlet 32. On the other hand, part of the water can flow to the bottom of the magnetic separation outer cylinder 1 in the direction of gravity, further driving the non-magnetic mineral material to move to the outer cylinder outlet 12 and be discharged, thereby improving the smoothness of the movement of the non-magnetic mineral material.

[0062] Specifically, the outer cylinder magnetic material outlet member 32 is a plate-shaped structure, and an outer cylinder material guide groove is provided along its extension direction. The bottom of the outer cylinder material guide groove is inclined toward the outside of the magnetic separation outer cylinder 1, so that the magnetic material in the outer cylinder material guide groove is discharged under the action of gravity.

[0063] In another embodiment, the outer cylinder material guide assembly 3 includes an outer cylinder scraper and an outer cylinder magnetic material outlet 32. The outer cylinder scraper relatively fixedly extends into the magnetic separation outer cylinder 1 and corresponds to the edge of the outer fixed plate 21, the outer cylinder scraper abuts against the inner wall of the magnetic separation outer cylinder 1, and the outer cylinder magnetic material outlet 32 ​​is fixed below the outer cylinder scraper. When the magnetic separation outer cylinder 1 rotates, the outer cylinder scraper scrapes the magnetic material adhered to the inner wall of the magnetic separation outer cylinder 1 into the outer cylinder magnetic material outlet 32.

[0064] Continue to refer to Figure 1 and Figure 2 In one embodiment, the inner cylinder material guide assembly 6 includes an inner cylinder flushing pipe 61 and an inner cylinder magnetic material outlet 62. One end of the inner cylinder flushing pipe 61 extends into the magnetic separation inner cylinder 4 along the axial direction and is arranged corresponding to the edge of the inner magnetic suction assembly 5. The inner cylinder flushing pipe 61 is provided with a plurality of second spray holes facing the inner wall of the magnetic separation inner cylinder 4. The inner cylinder magnetic material outlet 62 is arranged below the inner cylinder flushing pipe 61 to receive and outlet the magnetic material washed down. On the one hand, the inner cylinder flushing pipe 61 can flush the magnetic material on the inner wall of the magnetic separation inner cylinder 4 into the inner cylinder magnetic material outlet 62. On the other hand, part of the water can flow to the bottom of the magnetic separation inner cylinder 4 in the direction of gravity, driving the non-magnetic mineral material to move to the inner cylinder outlet 41 and be discharged.

[0065] Specifically, the inner cylinder magnetic material outlet member 62 is a plate-shaped structure, and an inner cylinder material guide groove is opened along its extension direction. The bottom of the inner cylinder material guide groove is inclined toward the outside of the magnetic separation inner cylinder 4, so that the magnetic material in the inner cylinder material guide groove is discharged under the action of gravity.

[0066] In another embodiment, the inner cylinder material guide assembly 6 includes an inner cylinder scraper and an inner cylinder magnetic material outlet 62. The inner cylinder scraper relatively fixedly extends into the magnetic separation inner cylinder 4 and corresponds to the edge of the inner fixed plate 51, the inner cylinder scraper abuts against the inner wall of the magnetic separation inner cylinder 4, the inner cylinder magnetic material outlet 62 is fixed below the inner cylinder scraper, and the magnetic separation inner cylinder 4 rotates, and the inner cylinder scraper scrapes the magnetic material adhered to the inner wall of the magnetic separation inner cylinder 4 into the inner cylinder magnetic material outlet 62.

[0067] In this embodiment, the driving assembly 7 includes an outer cylinder driver 71, an outer cylinder gear ring 72, an inner cylinder driver 73 and an inner cylinder gear ring 74. The outer cylinder gear ring 72 is sleeved on the outer wall of the magnetic separation outer cylinder 1 and meshes with the rotation output end of the outer cylinder driver 71, and the inner cylinder gear ring 74 is sleeved on a part of the magnetic separation inner cylinder 4 located outside the magnetic separation outer cylinder 1 and meshes with the rotation output end of the inner cylinder driver 73. The outer cylinder driver 71 and the inner cylinder driver 73 are in motion, and can respectively drive the magnetic separation outer cylinder 1 and the magnetic separation inner cylinder 4 to rotate.

[0068] Specifically, the outer cylinder driver 71 and the inner cylinder driver 73 have various implementations. In this embodiment, the outer cylinder driver 71 and the inner cylinder driver 73 can be a combination of a motor, a coupling and a reducer. The motor, the coupling and the reducer are connected in sequence to form a rotation output.

[0069] In order to better understand the present application, the technical solution provided by this embodiment is described in detail below with reference to the accompanying drawings:

[0070] The mineral material to be magnetically separated is first introduced into the magnetic separation inner cylinder 4 from the inner cylinder feed port 42, and the magnetic material in the mineral material will be adsorbed on the inner wall of the magnetic separation inner cylinder 4 under the action of the inner magnetic attraction component 5. The remaining mineral material can be transported to the inner cylinder discharge port 41 under the rotation of the magnetic separation inner cylinder 4 and the cooperation of the spiral structure of the inner wall of the magnetic separation inner cylinder 4, and enter the magnetic separation outer cylinder 1 from the inner cylinder discharge port. The magnetic separation inner cylinder 4 rotates so that a part corresponding to the inner magnetic attraction component 5 rotates to a position corresponding to the inner cylinder guide component 6, and the magnetic material is separated from the action of the inner magnetic attraction component 5. The inner cylinder flushing pipe 61 sprays water to the inner wall of the magnetic separation outer cylinder 1 to flush the magnetic material down, and the magnetic material falls into the inner cylinder magnetic material outlet 62 and is transported out.

[0071] Then, the magnetic material in the ore entering the magnetic separation outer cylinder 1 will be adsorbed on the inner wall of the magnetic separation outer cylinder 1 under the action of the outer magnetic attraction component 2, and the magnetic separation outer cylinder 1 rotates, so that the part corresponding to the outer magnetic attraction component 2 rotates to the position corresponding to the outer cylinder material guide component 3, and the magnetic material is separated from the action of the outer magnetic attraction component 2, and the outer cylinder flushing pipe 31 sprays water on the inner wall of the magnetic separation outer cylinder 1, flushing the magnetic material down, falling into the outer cylinder magnetic material outlet 32 ​​and being transported out of the magnetic separation mechanism. Non-magnetic ore can be transported to the outer cylinder discharge port 12 under the rotation of the magnetic separation outer cylinder 1 and the coordinated action of the spiral structure of the inner wall of the magnetic separation outer cylinder 1.

[0072] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A magnetic separation mechanism, characterized in that: include: A drive assembly (7) and at least two magnetic separation devices, wherein the magnetic separation devices include: A magnetic separation cylinder, wherein at least two magnetic separation cylinders of the magnetic separation device are sequentially spaced and sleeved, and the magnetic separation cylinder can accommodate mineral materials, and the mineral materials can move along the axial direction of the magnetic separation cylinder and move sequentially in at least two magnetic separation cylinders from the inside to the outside; A magnetic attraction component is arranged correspondingly and at intervals on a part of the outer side of the magnetic separation cylinder in the circumferential direction, and the magnetic attraction component attracts the magnetic material in the mineral material to the inner wall of the magnetic separation cylinder; A material guide component, corresponding to the edge of the magnetic attraction component, extending from the magnetic separation cylinder, and capable of guiding out the magnetic material separated from the inner wall of the magnetic separation cylinder; The driving assembly (7) is capable of driving at least two of the magnetic separation cylinders to rotate around their own axes relative to the corresponding magnetic attraction assemblies.

2. The magnetic separation mechanism according to claim 1, characterized in that: There are two magnetic separation devices, the magnetic separation device located on the outside comprises a magnetic separation outer cylinder (1), an outer magnetic attraction component (2) and an outer cylinder material guide component (3), the outer magnetic attraction component (2) is arranged corresponding to and spaced apart from a part of the outer side of the magnetic separation outer cylinder (1) in the circumferential direction, the outer cylinder material guide component (3) corresponds to the edge of the outer magnetic attraction component (2) and extends from the magnetic separation outer cylinder (1), the driving component (7) is connected to the magnetic separation outer cylinder (1) and can drive the magnetic separation outer cylinder (1) to rotate relative to the outer magnetic attraction component (2); The magnetic separation device located on the inner side comprises a magnetic separation inner cylinder (4), an inner magnetic attraction component (5) and an inner cylinder material guide component (6); the inner magnetic attraction component (5) corresponds to and is spaced apart from a portion of the outer side of the magnetic separation inner cylinder (4) in the circumferential direction; the inner cylinder material guide component (6) corresponds to the edge of the inner magnetic attraction component (5) and extends from the magnetic separation inner cylinder (4); the driving component (7) is connected to the magnetic separation inner cylinder (4) and can drive the magnetic separation inner cylinder (4) to rotate relative to the inner magnetic attraction component (5).

3. The magnetic separation mechanism according to claim 2, characterized in that: The outer magnetic attraction component (2) comprises an outer fixing plate (21) and a plurality of outer cylinder magnets (22), wherein the outer fixing plate (21) is arranged corresponding to a portion of the outer side of the magnetic separation outer cylinder (1) in the circumferential direction, and the plurality of outer cylinder magnets (22) are fixed to a side of the outer fixing plate (21) facing the magnetic separation outer cylinder (1) at intervals from each other; The inner magnetic attraction component (5) comprises an inner fixing plate (51) and a plurality of inner cylinder magnets (52); the inner fixing plate (51) extends between the magnetic separation outer cylinder (1) and the magnetic separation inner cylinder (4), and is arranged corresponding to a portion of the outer side of the magnetic separation inner cylinder (4) in the circumferential direction; and the plurality of inner cylinder magnets (52) are fixed to the inner fixing plate (51) at intervals on a side facing the magnetic separation inner cylinder (4).

4. The magnetic separation mechanism according to claim 3, characterized in that: The outer fixing plate (21) is an arc-shaped structure that matches the shape of a portion of the magnetic separation outer cylinder (1) in the circumferential direction.

5. The magnetic separation mechanism according to claim 2, characterized in that: The outer cylinder material guide assembly (3) comprises an outer cylinder flushing pipe (31) and an outer cylinder magnetic material outlet (32). One end of the outer cylinder flushing pipe (31) extends axially into the magnetic separation outer cylinder (1) and is arranged corresponding to the edge of the outer magnetic suction assembly (2). The outer cylinder flushing pipe (31) is provided with a plurality of first spray holes facing the inner wall of the magnetic separation outer cylinder (1). The outer cylinder magnetic material outlet (32) is arranged below the outer cylinder flushing pipe (31) and is used to receive and outlet the magnetic material that has been flushed down.

6. The magnetic separation mechanism according to claim 5, characterized in that: The outer cylinder magnetic material outlet member (32) is a plate-shaped structure, and an outer cylinder material guide groove is provided along the extension direction of the outer cylinder magnetic material outlet member (32), and the groove bottom of the outer cylinder material guide groove is inclined toward the outside of the magnetic separation outer cylinder (1).

7. The magnetic separation mechanism according to claim 2, characterized in that: The inner cylinder material guide assembly (6) comprises an inner cylinder flushing pipe (61) and an inner cylinder magnetic material outlet (62). One end of the inner cylinder flushing pipe (61) extends axially into the magnetic separation inner cylinder (4) and is arranged corresponding to the edge of the inner magnetic attraction assembly (5). The inner cylinder flushing pipe (61) is provided with a plurality of second spray holes facing the inner wall of the magnetic separation inner cylinder (4). The inner cylinder magnetic material outlet (62) is arranged below the inner cylinder flushing pipe (61) and is used to receive and outlet the magnetic material that has been flushed down.

8. The magnetic separation mechanism according to claim 7, characterized in that: The inner cylinder magnetic material outlet member (62) is a plate-shaped structure, and an inner cylinder material guide groove is provided along the extension direction of the inner cylinder magnetic material outlet member (62), and the groove bottom of the inner cylinder material guide groove is inclined toward the outside of the magnetic separation inner cylinder (4).

9. The magnetic separation mechanism according to claim 2, characterized in that: One end of the magnetic separation inner cylinder (4) extending into the magnetic separation outer cylinder (1) is the inner cylinder discharge port (41), and an observation port (11) is provided at one end of the magnetic separation outer cylinder (1) corresponding to the inner cylinder discharge port (41).

10. The magnetic separation mechanism according to claim 2, characterized in that: The magnetic separation device located on the inner side also includes an inner cylinder support frame (8), which extends into the magnetic separation outer cylinder (1) and is connected to the magnetic separation inner cylinder (4), and the magnetic separation inner cylinder (4) can rotate relative to the inner cylinder support frame (8).

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