Internal and external magnetic separation mechanism

Abstract

The internal and external magnetic separation mechanism comprises a magnetic separation outer barrel, an outer magnetic attraction assembly, a magnetic separation inner barrel and an inner magnetic attraction assembly, the outer magnetic attraction assembly is arranged below the magnetic separation outer barrel, and the magnetic separation outer barrel can rotate relative to the outer magnetic attraction assembly; one end of the magnetic separation inner cylinder rotatably extends into the magnetic separation outer cylinder, the inner magnetic attraction assembly is arranged between the magnetic separation outer cylinder and the magnetic separation inner cylinder and located below the magnetic separation inner cylinder, and mineral aggregate can firstly enter the magnetic separation inner cylinder to be subjected to first-time magnetic separation and then flow into the magnetic separation outer cylinder to be subjected to second-time magnetic separation. And the path and retention time of the mineral aggregate in the magnetic separation mechanism are prolonged, so that the mineral aggregate is subjected to magnetic separation twice in sequence, and the magnetic separation effect is effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of laterite nickel ore beneficiation, and in particular to an internal and external magnetic separation mechanism. Background Art

[0002] Laterite nickel ore is a loose, clay-like, multi-mineral aggregate formed by long-term weathering, leaching, dissemination, and alteration of nickel-bearing olivine bedrock in tropical or subtropical regions. It contains metallic components such as nickel, cobalt, chromium, magnesium, and aluminum. High-pressure acid leaching is currently one of the mainstream smelting processes for laterite nickel ore. Prior to acid leaching, the ore undergoes washing, gravity separation, ball milling, magnetic separation, and concentration to form a slurry ready for acid leaching. The magnetic separation process is used to remove chromium ore from the laterite nickel ore. Currently, the equipment commonly used for this process is a magnetic separator.

[0003] Patent CN201520819197.1 provides an energy-saving inner-drum permanent magnet strong magnetic separator, which includes a concentrate unloading water inlet, a concentrate trough, an outer drum, a rotating drum, a slurry layer, a magnetic medium, a feed port, a concentrate flushing water inlet and a magnetic system; the outer drum is a fixed hollow cylinder; the inner drum is a rotating hollow cylinder; the diameter of the outer drum is larger than the diameter of the inner drum; the magnetic system is fixed between the rotating drum and the outer drum; the magnetic medium is attached to the surface of the rotating drum; the slurry layer is connected to the feed port; the concentrate flushing water inlet is installed on the rotating drum to flush the concentrate; and the concentrate trough is connected to the concentrate unloading water inlet.

[0004] However, the above solution has the following problems: the ore stays in the magnetic separator for a short time, resulting in poor magnetic separation effect. Summary of the Invention

[0005] The purpose of this application is to overcome the above technical deficiencies and propose an internal and external magnetic separation mechanism to solve the technical problems of short residence time of ore in the magnetic separator and poor magnetic separation effect.

[0006] In order to achieve the above technical objectives, this application adopts the following technical solutions: The present application provides an internal and external magnetic separation mechanism, comprising: Rotatable magnetic separation outer cylinder; An external magnetic attraction component is arranged below the magnetic separation outer cylinder; An outer cylinder material guide assembly extends into the magnetic separation outer cylinder and is arranged corresponding to the edge of the outer magnetic attraction assembly, and is used to guide the magnetic material in the magnetic separation outer cylinder; The magnetic separation inner cylinder has one end rotatably extending into the magnetic separation outer cylinder, and the magnetic separation inner cylinder is provided with an inner cylinder discharge port on one end thereof located inside the magnetic separation outer cylinder; An inner magnetic attraction component is provided between the outer magnetic separation cylinder and the inner magnetic separation cylinder and is located below the inner magnetic separation cylinder; An inner cylinder material guide assembly, which extends into the magnetic separation inner cylinder and is arranged corresponding to the edge of the inner magnetic attraction assembly, and is used to guide the magnetic material in the magnetic separation inner cylinder and guide the remaining mineral materials in the magnetic separation inner cylinder to move toward the inner cylinder discharge port; and The driving assembly is connected to the magnetic separation outer cylinder and the magnetic separation inner cylinder, and drives the magnetic separation outer cylinder and the magnetic separation inner cylinder to rotate relative to the outer magnetic attraction assembly and the inner magnetic attraction assembly respectively.

[0007] In some embodiments, the external magnetic attraction assembly includes an external fixing plate and several outer cylinder magnets. The external fixing plate is fixed on the ground and corresponds to the bottom of the magnetic separation outer cylinder. The outer cylinder magnets are fixed at intervals on the surface of the external fixing plate facing the magnetic separation outer cylinder.

[0008] In some embodiments, the outer fixing plate is bent into an arc shape that matches the bottom of the magnetic separation outer cylinder.

[0009] In some embodiments, the outer cylinder material guide assembly includes an outer cylinder flushing pipe and an outer cylinder magnetic material outlet. 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. The outer cylinder flushing pipe is provided with a plurality of spray holes facing the magnetic separation outer cylinder. The outer cylinder magnetic material outlet is arranged below the outer cylinder flushing pipe for receiving and outleting the magnetic material flushed down.

[0010] In some embodiments, the outer cylinder magnetic material outlet is plate-shaped, and an outer cylinder material guide groove is axially opened on the outer cylinder magnetic material outlet, and the bottom surface of the outer cylinder material guide groove is inclined toward the outside of the magnetic separation outer cylinder.

[0011] In some embodiments, the inner magnetic attraction assembly includes an inner fixed plate and several inner cylinder magnets. The inner fixed plate extends between the magnetic separation outer cylinder and the magnetic separation inner cylinder and corresponds to the bottom of the magnetic separation inner cylinder. The inner cylinder magnets are fixed at intervals on the surface of the inner fixed plate facing the magnetic separation inner cylinder.

[0012] In some embodiments, the inner cylinder material guide assembly includes an inner cylinder flushing pipe and an inner cylinder magnetic material outlet. 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 attraction assembly. The inner cylinder flushing pipe is provided with a plurality of spray holes facing the magnetic separation inner cylinder. The inner cylinder magnetic material outlet is arranged below the inner cylinder flushing pipe for receiving and outleting the magnetic material flushed down.

[0013] In some embodiments, the inner cylinder magnetic material outlet is plate-shaped, and an inner cylinder material guide groove is axially opened on the inner cylinder magnetic material outlet, and the bottom surface of the inner cylinder material guide groove is inclined toward the outside of the magnetic separation inner cylinder.

[0014] In some embodiments, an observation port is provided on one end of the magnetic separation outer cylinder corresponding to the discharge port of the inner cylinder.

[0015] In some embodiments, an inner cylinder support frame is further included, wherein the inner cylinder support frame extends into the magnetic separation outer cylinder and is rotatably connected to the top of the magnetic separation inner cylinder.

[0016] Compared with the prior art, the internal and external magnetic separation mechanism provided by the present application includes an outer magnetic separation cylinder, an outer magnetic attraction component, an inner magnetic separation cylinder, and an inner magnetic attraction component. The outer magnetic attraction component is arranged below the outer magnetic separation cylinder, and the outer magnetic separation cylinder can rotate relative to the outer magnetic attraction component; one end of the inner magnetic separation cylinder can be rotatably extended into the outer magnetic separation cylinder, and the inner magnetic attraction component is arranged between the outer magnetic separation cylinder and the inner magnetic separation cylinder and is located below the inner magnetic separation cylinder. The mineral material will first enter the inner magnetic separation cylinder for the first magnetic separation, and then flow into the outer magnetic separation cylinder for the second magnetic separation, extending the path and residence time of the mineral material inside the magnetic separation mechanism, so that the mineral material undergoes two magnetic separations in succession, effectively improving the effect of magnetic separation.

[0017] The above description is only an overview of the technical solution of this application. In order to enable a clearer understanding of the technical means of this application and to implement it according to the contents of the description, the preferred embodiments of this application are described in detail below with reference to the accompanying drawings. The specific implementation methods of this application are detailed in the following embodiments and their accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a cross-sectional schematic diagram of the internal and external magnetic separation mechanism provided by this application; Figure 2 This is an assembly diagram of the magnetic separation outer cylinder, outer cylinder material guide assembly, magnetic separation inner cylinder, and inner cylinder material guide assembly provided by this application.

[0019] Description of reference numerals: 1-magnetic separation outer cylinder, 11-observation port, 12-outer cylinder discharge port, 13-support frame, 2-outer magnetic attraction component, 21-outer fixed plate, 22-outer cylinder magnet, 3-outer cylinder guide component, 31-outer cylinder flushing pipe, 32-outer cylinder magnetic material outlet, 4-magnetic separation inner cylinder, 41-inner cylinder discharge port, 42-inner cylinder feed port, 5-inner magnetic attraction component, 51-inner fixed plate, 52-inner cylinder magnet, 6-inner cylinder guide component, 61-inner cylinder flushing pipe, 62-inner cylinder magnetic material outlet, 7-drive assembly, 71-outer cylinder driver, 72-outer cylinder gear ring, 73-inner cylinder driver, 74-inner cylinder gear ring, 8-inner cylinder support frame, 81-sealed bearing. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0021] See also Figure 1 、 Figure 2 , Figure 1 This is a structural diagram of the internal and external magnetic separation mechanism in one embodiment of the present application; Figure 2 This is an assembly diagram of the magnetic separation outer cylinder, outer cylinder material guide assembly, magnetic separation inner cylinder, and inner cylinder material guide assembly provided by this application.

[0022] The present application provides an internal and external magnetic separation mechanism, comprising: a magnetic separation outer cylinder 1, an outer magnetic attraction component 2, an outer cylinder material guide component 3, a magnetic separation inner cylinder 4, an inner magnetic attraction component 5, an inner cylinder material guide component 6 and a driving component 7. The outer magnetic attraction component 2 is arranged below the magnetic separation outer cylinder 1, and the magnetic separation outer cylinder 1 can rotate relative to the outer magnetic attraction component 2. The outer cylinder material guide component 3 extends into the magnetic separation outer cylinder 1 and is arranged corresponding to the edge of the outer magnetic attraction component 2; one end of the magnetic separation inner cylinder 4 can be rotatably extended into the magnetic separation outer cylinder 1, and the inner magnetic attraction component 5 is arranged between the magnetic separation outer cylinder 1 and the magnetic separation inner cylinder 4 and is located at the magnetic separation outer cylinder 1. Below the inner cylinder 4, the inner cylinder material guide assembly 6 extends into the magnetic separation inner cylinder 4 and is arranged corresponding to the edge of the inner magnetic attraction assembly 5. The magnetic separation inner cylinder 4 is open at one end inside the magnetic separation outer cylinder 1 to form an inner cylinder discharge port 41. The driving assembly 7 is connected to the magnetic separation outer cylinder 1 and the magnetic separation inner cylinder 4 to drive the magnetic separation outer cylinder 1 and the magnetic separation inner cylinder 4 to rotate relative to the outer magnetic attraction assembly 2 and the inner magnetic attraction assembly 5 respectively. The inner cylinder material guide assembly 6 is used to export the magnetic material adsorbed on the inner wall of the magnetic separation inner cylinder 4 and guide the remaining mineral materials in the magnetic separation inner cylinder 4 to move toward the inner cylinder discharge port 41.

[0023] During use of the present application, the mineral material to be magnetically separated is first introduced into the magnetic separation inner cylinder 4, 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, and the remaining mineral material will move to the inner cylinder discharge port 41 under the action of the inner cylinder guide component 6 and be discharged into the magnetic separation outer cylinder 1, and the magnetic separation inner cylinder 4 rotates so that the part corresponding to the inner magnetic attraction component 5 rotates to the 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 and is discharged by the inner cylinder guide component Part 6 collects and exports; the magnetic material in the mineral material 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 external magnetic attraction component 2, and 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 material guide component 3, and the magnetic material is separated from the action of the external magnetic attraction component 2, and is collected and exported by the outer cylinder material guide component 3; the present application prolongs the path and residence time of the mineral material inside the magnetic separation mechanism, so that the mineral material undergoes two magnetic separations in succession, thereby effectively improving the effect of magnetic separation.

[0024] In this embodiment, an observation port 11 is provided on one end of the magnetic separation outer cylinder 1 corresponding to the inner cylinder discharge port 41. When in use, the internal situation of the magnetic separation outer cylinder 1 can be observed through the observation port 11 to determine whether the internal and external magnetic separation mechanisms are working smoothly.

[0025] In this embodiment, the end of the magnetic separation outer cylinder 1 away from the inner cylinder discharge port 41 is open to form the outer cylinder discharge port 12. This allows the mineral material to form a longer path in the magnetic separation outer cylinder 1, thereby improving the magnetic separation effect.

[0026] In this embodiment, a support frame 13 is provided below the magnetic separation outer cylinder 1 . The support frame 13 is connected to the magnetic separation outer cylinder 1 via a bearing ring. The support frame 13 provides rotational support for the magnetic separation outer cylinder 1 .

[0027] In this embodiment, the external magnetic attraction component 2 includes an external fixing plate 21 and a plurality of external cylinder magnets 22. The external fixing plate 21 is fixed reliably on the ground and corresponds to a portion of the circumferential surface of the magnetic separation outer cylinder 1. The external cylinder magnets 22 are fixed at intervals on the surface of the external fixing plate 21 facing the magnetic separation outer cylinder 1. The external cylinder magnets 22 exert a magnetic attraction on the magnetic material, adsorbing the magnetic material to the inner surface of the magnetic separation outer cylinder 1. During actual use, the external cylinder magnets 22 exert a magnetic attraction on the magnetic material, adsorbing the magnetic material to the inner surface of the magnetic separation outer cylinder 1. The magnetic separation outer cylinder 1 rotates, and the non-magnetic material slides to the bottom of the magnetic separation outer cylinder 1, while the magnetic material rotates with the magnetic separation outer cylinder 1 until it is transported to the edge of the external fixing plate 21, loses the magnetic effect, and falls into the external cylinder material guide component 3 for discharge.

[0028] In this embodiment, the outer fixing plate 21 is bent into an arc shape that matches the bottom of the magnetic separation outer cylinder 1. The purpose of this design is to ensure 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 magnetic separation effect.

[0029] The outer cylinder material guide assembly 3 is arranged below the edge of the outer fixed plate 21, and its function is to receive and discharge the magnetic materials that have lost their magnetic attraction. In this 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 axially into the magnetic separation outer cylinder 1 and is arranged corresponding to the edge of the outer magnetic attraction assembly 2. The outer cylinder flushing pipe 31 is provided with a number of spray holes facing 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 discharge the magnetic materials washed down. On the one hand, the outer cylinder flushing pipe 31 flushes the magnetic materials 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 flow flows to the bottom of the magnetic separation outer cylinder 1, driving the non-magnetic mineral materials to move toward the outer cylinder outlet 12 and be discharged.

[0030] In this embodiment, the outer cylinder magnetic material outlet member 32 is plate-shaped, and an outer cylinder material guide groove is axially opened on the outer cylinder magnetic material outlet member 32 , and the bottom surface of the outer cylinder material guide groove is inclined toward the outside of the magnetic separation outer cylinder 1 .

[0031] In other feasible embodiments, the outer cylinder material guide assembly 3 includes an outer cylinder scraper and an outer cylinder magnetic material outlet 32. The outer cylinder scraper is fixed in 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. 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.

[0032] In this embodiment, an inner cylinder feed port 42 is provided on one end of the magnetic separation inner cylinder 4 located outside the magnetic separation outer cylinder 1 .

[0033] In this embodiment, an inner cylinder support frame 8 is further included. The inner cylinder support frame 8 extends from the observation port 11 and the outer cylinder discharge port 12 into the magnetic separation outer cylinder 1 and is rotatably connected to the top of the magnetic separation inner cylinder 4. The purpose of this arrangement is to support the magnetic separation inner cylinder 4 so that it can rotate relative to the magnetic separation outer cylinder 1. There are various ways to rotatably connect the inner cylinder support frame 8 to the magnetic separation inner cylinder 4. Specifically, 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 rotatably 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.

[0034] In this embodiment, the inner magnetic attraction assembly 5 includes an inner fixed plate 51 and a plurality of inner cylinder magnets 52. The inner fixed plate 51 extends between the magnetic separation outer cylinder 1 and the magnetic separation inner cylinder 4 and corresponds to the bottom of the magnetic separation inner cylinder 4. The inner cylinder magnets 52 are fixed at intervals on the surface of the inner fixed plate 51 facing the magnetic separation inner cylinder 4. The inner cylinder magnets 52 exert a magnetic attraction on magnetic materials, adsorbing the magnetic materials to the inner surface of the magnetic separation inner cylinder 4. In actual use, the inner cylinder magnets 52 exert a magnetic attraction on magnetic materials, adsorbing the magnetic materials to the inner surface of the magnetic separation inner cylinder 4. The magnetic separation inner cylinder 4 rotates, and non-magnetic materials slide to the bottom of the magnetic separation inner cylinder 4. The magnetic materials rotate with the magnetic separation inner cylinder 4 until they reach the edge of the inner fixed plate 51, lose the magnetic effect, fall into the inner cylinder material guide assembly 6, and are discharged.

[0035] In this embodiment, the portion of the inner fixing plate 51 corresponding to the magnetic separation inner cylinder 4 is bent into an arc shape that matches the bottom of the magnetic separation inner cylinder 4. This design ensures that each inner cylinder magnet 52 is at the same distance from the bottom of the magnetic separation inner cylinder 4, generating the same magnetic force, thereby ensuring the effectiveness of magnetic separation.

[0036] In this embodiment, the inner fixing plate 51 extends from the outer cylinder outlet 12 into the magnetic separation outer cylinder 1 and is fixed to the second portion of the sealed bearing 81. This arrangement is because material discharged from the inner cylinder outlet 41 is likely to splash between the inner fixing plate 51 and the magnetic separation inner cylinder 4, and magnetic substances contained in the material will be attracted by the inner cylinder magnet 52. Over time, this will form accumulations on the surface of the inner cylinder magnet 52, affecting its magnetic attraction effect.

[0037] The inner cylinder guide assembly 6 is arranged below the edge of the inner fixed plate 51, and its function is to receive and discharge the magnetic materials that have lost their magnetic attraction. In this embodiment, the inner cylinder 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 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 spray holes facing 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 discharge the washed magnetic materials. On the one hand, the inner cylinder flushing pipe 61 flushes the magnetic materials 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 flows to the bottom of the magnetic separation outer cylinder 1, driving the non-magnetic mineral materials to move toward the inner cylinder outlet 41 and be discharged.

[0038] In this embodiment, the inner cylinder magnetic material outlet member 62 is plate-shaped, and an inner cylinder material guide groove is axially opened on the inner cylinder magnetic material outlet member 62 , and the bottom surface of the inner cylinder material guide groove is inclined toward the outside of the magnetic separation inner cylinder 4 .

[0039] In other feasible embodiments, the inner cylinder material guide assembly 6 includes an inner cylinder scraper and an inner cylinder magnetic material outlet 62, the outer cylinder scraper is fixed in the magnetic separation inner cylinder 4 and corresponds to the edge of the inner fixed plate 51, the outer 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, 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.

[0040] 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 engages with the rotation output end of the outer cylinder driver 71. The inner cylinder gear ring 74 is sleeved on the part of the magnetic separation inner cylinder 4 located outside the magnetic separation outer cylinder 1 and engages with the rotation output end of the inner cylinder driver 73. The outer cylinder driver 71 and the inner cylinder driver 73 are actuated to drive the magnetic separation outer cylinder 1 and the magnetic separation inner cylinder 4 to rotate.

[0041] Specifically, the outer cylinder driver 71 and the inner cylinder driver 73 have various implementation modes. In this embodiment, the outer cylinder driver 71 and the inner cylinder driver 73 include a motor, a coupling, and a reducer. The motor, the coupling, and the reducer are connected in sequence to form a rotation output.

[0042] In order to better understand the present application, the technical solution of the present application is described in detail below with reference to the accompanying drawings: The ore to be magnetically separated is first introduced into the magnetic separation inner cylinder 4, and the magnetic material in the ore will be adsorbed on the inner wall of the magnetic separation inner cylinder 4 under the action of the inner magnetic attraction component 5, and the remaining ore will be discharged from the inner cylinder discharge port 41 into the magnetic separation outer cylinder 1, and the magnetic separation inner cylinder 4 rotates so that the part corresponding to the inner magnetic attraction component 5 rotates to the 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, and 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 fall on the 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. The outer cylinder flushing pipe 31 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 outer cylinder magnetic material outlet 32 ​​and is transported out.

[0043] The beneficial effects of the present application include: a magnetic separation outer cylinder, an outer magnetic attraction component, a magnetic separation inner cylinder, and an inner magnetic attraction component; the outer magnetic attraction component is arranged below the magnetic separation outer cylinder, and the magnetic separation outer cylinder can rotate relative to the outer magnetic attraction component; one end of the magnetic separation inner cylinder can be rotatably extended into the magnetic separation outer cylinder; the inner magnetic attraction component is arranged between the magnetic separation outer cylinder and the magnetic separation inner cylinder and is located below the magnetic separation inner cylinder; the mineral material will first enter the magnetic separation inner cylinder for the first magnetic separation, and then flow into the magnetic separation outer cylinder for the second magnetic separation, thereby extending the path and residence time of the mineral material inside the magnetic separation mechanism, so that the mineral material undergoes two magnetic separations in succession, effectively improving the effect of magnetic separation.

[0044] The specific implementation methods of the present application described above do not limit the scope of protection of the present application. Any other corresponding changes and modifications made based on the technical concept of the present application should be included in the scope of protection of the claims of the present application.

Claims

1. An internal and external magnetic separation mechanism, characterized in that: It includes: Rotatable magnetic separation outer cylinder; An external magnetic attraction component is arranged below the magnetic separation outer cylinder; An outer cylinder material guide assembly extends into the magnetic separation outer cylinder and is arranged corresponding to the edge of the outer magnetic attraction assembly, and is used to guide the magnetic material in the magnetic separation outer cylinder; The magnetic separation inner cylinder has one end rotatably extending into the magnetic separation outer cylinder, and the magnetic separation inner cylinder is provided with an inner cylinder discharge port on one end thereof located inside the magnetic separation outer cylinder; An inner magnetic attraction component is provided between the outer magnetic separation cylinder and the inner magnetic separation cylinder and is located below the inner magnetic separation cylinder; An inner drum material guide assembly, which extends into the magnetic separation inner drum and is arranged corresponding to the edge of the inner magnetic attraction assembly, and is used to guide the magnetic material in the magnetic separation inner drum and guide the remaining mineral materials in the magnetic separation inner drum to move toward the inner drum discharge port; as well as, The driving assembly is connected to the magnetic separation outer cylinder and the magnetic separation inner cylinder, and drives the magnetic separation outer cylinder and the magnetic separation inner cylinder to rotate relative to the outer magnetic attraction assembly and the inner magnetic attraction assembly respectively.

2. The internal and external magnetic separation mechanism according to claim 1, characterized in that: The outer magnetic attraction assembly includes an outer fixing plate and a plurality of outer cylinder magnets. The outer fixing plate is fixed on the ground and corresponds to the bottom of the magnetic separation outer cylinder. The outer cylinder magnets are fixed at intervals on the surface of the outer fixing plate facing the magnetic separation outer cylinder.

3. The internal and external magnetic separation mechanism according to claim 2, characterized in that: The outer fixing plate is bent into an arc shape matching the bottom of the magnetic separation outer cylinder.

4. The internal and external magnetic separation mechanism according to claim 1, characterized in that: The outer cylinder material guide assembly includes an outer cylinder flushing pipe and an outer cylinder magnetic material outlet. 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. The outer cylinder flushing pipe is provided with a plurality of spray holes facing the magnetic separation outer cylinder. The outer cylinder magnetic material outlet is arranged below the outer cylinder flushing pipe for receiving and outleting the magnetic material washed down.

5. The internal and external magnetic separation mechanism according to claim 4, characterized in that: The outer cylinder magnetic material outlet member is plate-shaped, and an outer cylinder material guide groove is axially opened on the outer cylinder magnetic material outlet member, and the bottom surface of the outer cylinder material guide groove is inclined toward the outside of the magnetic separation outer cylinder.

6. The internal and external magnetic separation mechanism according to claim 1, characterized in that: The inner magnetic attraction assembly includes an inner fixed plate and several inner cylinder magnets. The inner fixed plate extends between the magnetic separation outer cylinder and the magnetic separation inner cylinder and corresponds to the bottom of the magnetic separation inner cylinder. The inner cylinder magnets are fixed at intervals on the surface of the inner fixed plate facing the magnetic separation inner cylinder.

7. The internal and external magnetic separation mechanism according to claim 1, characterized in that: The inner cylinder material guide assembly includes an inner cylinder flushing pipe and an inner cylinder magnetic material outlet. 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 attraction assembly. The inner cylinder flushing pipe is provided with a plurality of spray holes facing the magnetic separation inner cylinder. The inner cylinder magnetic material outlet is arranged below the inner cylinder flushing pipe for receiving and outleting the magnetic material washed down.

8. The internal and external magnetic separation mechanism according to claim 6, characterized in that: The inner cylinder magnetic material outlet member is plate-shaped, and an inner cylinder material guide groove is axially opened on the inner cylinder magnetic material outlet member, and the bottom surface of the inner cylinder material guide groove is inclined toward the outside of the magnetic separation inner cylinder.

9. The internal and external magnetic separation mechanism according to claim 6, characterized in that: An observation port is provided on one end of the magnetic separation outer cylinder corresponding to the discharge port of the inner cylinder.

10. The internal and external magnetic separation mechanism according to claim 9, characterized in that: It also includes an inner cylinder support frame, which extends into the magnetic separation outer cylinder and is rotatably connected to the top of the magnetic separation inner cylinder.

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