Electromagnetic induction roller type high-intensity magnetic separator

Abstract

The invention relates to the technical field of mineral separation, and discloses an electromagnetic induction roller type high-intensity magnetic separator which comprises a support, a magnetic system used for exciting a magnetic field and a rotating roller penetrating through the magnetic field excited by the magnetic system are arranged on the support, and the rotating roller is rotationally arranged on the support; the interior of the rotating roller is hollow, an opening is formed in one end of the rotating roller, the rotating roller is sleeved with an outer penetrating ring, a magnetic conductive disc is attached to the peripheral face of the outer penetrating ring, the outer penetrating ring is communicated with the rotating roller, the outer penetrating ring and the magnetic conductive disc are coaxial and are both arranged in a magnetic field, and water flow or air flow fed into the rotating roller from the opening is sprayed outwards in the radial direction of the outer penetrating ring; an outer cover and a driving assembly used for driving the rotating roller to rotate are arranged on the support, the outer penetrating ring and the magnetic conducting disc synchronously rotate with the rotating roller, a sorting chamber is formed in the outer cover, and a magnetic field is excited in the sorting chamber; a feeding assembly is connected to the outer cover so that materials can be fed into the sorting chamber. The sorting precision is improved, and the application range is widened.

Description

Technical Field

[0001] The present application relates to the technical field of mineral separation, and in particular to an electromagnetic induction roller-type high-intensity magnetic separator. Background Art

[0002] Among the mineral processing and sorting equipment, the electromagnetic induction roller type strong magnetic separator is a relatively traditional strong magnetic field sorting equipment, which has the characteristics of high magnetic field strength and large magnetic field gradient. It is widely used in the fields of weak magnetic mineral sorting, iron removal of non-metallic ores, separation of waste electromagnetic positive and negative electrodes, etc. At present, the equipment mainly has two types: dry type and wet type. The dry type, such as the patent CN202893497U, has a sorting area on the upper part of the rotating roller, which is mainly used for dry pre-selection of coarse-grained weak magnetic materials; the wet type, such as the CS type wet induction roller type strong magnetic separator, has a sorting area on the lower part of the rotating roller, which is mainly used for the production of coarse-grained manganese ore.

[0003] However, in the actual production process, whether it is a dry or wet electromagnetic induction roller type strong magnetic separator, the sorting process can only be adjusted by changing the roller speed and magnetic field strength. The adjustment means are single, resulting in such traditional electromagnetic induction roller type strong magnetic separators being only suitable for sorting materials with large magnetic differences and coarse particle sizes. For fine particles, the separation process has poor dispersion effect, serious inclusion of non-magnetic materials, low separation accuracy, and the recovery rate cannot be effectively guaranteed, which greatly limits the application of electromagnetic induction roller type strong magnetic separators. Summary of the invention

[0004] The purpose of this application is to overcome the problem of poor sorting effect for fine-particle materials in the prior art. This application provides an electromagnetic induction roller-type high-intensity magnetic separator, in which the high-pressure water vapor discharged outward in the magnetic field provides a drag force field for enhanced sorting, thereby improving the sorting accuracy and expanding the scope of application.

[0005] In order to achieve the above-mentioned object, the present application provides an electromagnetic induction roller type high-intensity magnetic separator, comprising a bracket, on which a magnetic system for exciting a magnetic field and a rotating roller passing through the magnetic field excited by the magnetic system are arranged, and the rotating roller is rotatably arranged on the bracket;

[0006] The rotating roller is hollow inside and has an opening at one end. An outer transparent ring is sleeved on the rotating roller. A guide magnetic disk is attached to the outer circumference of the outer transparent ring. The outer transparent ring is connected to the rotating roller. The outer transparent ring and the guide magnetic disk are coaxial and both are arranged in the magnetic field. The water flow or air flow fed into the rotating roller through the opening is ejected outward along the radial direction of the outer transparent ring.

[0007] The bracket is provided with an outer cover and a driving assembly for driving the rotating roller to rotate. The outer transparent ring and the guide magnetic disk rotate synchronously with the rotating roller. A sorting chamber is formed in the outer cover, and the magnetic field is excited in the sorting chamber.

[0008] The outer cover is connected with a feeding assembly so as to be able to feed materials into the sorting chamber.

[0009] In some embodiments, the magnetic system includes a yoke and two magnetic pole heads arranged at both ends of the yoke. The two magnetic pole heads face each other and have a gap between them to form a magnetic field space. The conductive disk and the outer transparent ring are both located in the magnetic field space. An excitation coil is wound around one end of the yoke, and the excitation coil is arranged on the side of the magnetic pole head away from the magnetic field space.

[0010] In some embodiments, the excitation coil includes multiple sub-coils and a current controller for adjusting the magnetic field distribution on the surface of the rotating roller. The multiple sub-coils are wound around the outside of the magnetic yoke, and are closely arranged between two adjacent sub-coils. Each sub-coil is connected to the current controller.

[0011] In some embodiments, the rotating roller includes a fixed sleeve, a connecting sleeve and a hollow tube inserted in the connecting sleeve, the fixed sleeve and the connecting sleeve are arranged opposite to each other, and a penetrating fixing bolt is arranged between the fixed sleeve and the connecting sleeve;

[0012] One end of the hollow tube inserted into the connecting sleeve is in a closed state, and the end of the hollow tube exposed to the outside is in an open state. An outer flow groove is provided on the outer wall of the hollow tube adjacent to the fixed sleeve, and the outer flow groove enables the hollow tube to communicate with the outer transparent ring;

[0013] The outer transparent ring and the guide disk are arranged between the fixed sleeve and the connecting sleeve. Several outer transparent rings are arranged at intervals from the connecting sleeve toward the fixed sleeve. A guide disk is arranged between any two adjacent outer transparent rings. The fixing bolts penetrate the outer transparent ring and the guide disk.

[0014] In some embodiments, a magnetic medium cylinder is disposed on the outer transparent ring sleeve, and the magnetic medium cylinder is disposed in the magnetic field space. The magnetic medium cylinder includes a porous cylinder, a magnetic conductive medium wire wound on the porous cylinder, and a plurality of fixed plates for compressing the magnetic conductive medium wire. The plurality of fixed plates are evenly arranged along the circumference of the porous cylinder.

[0015] In some embodiments, rolling bearings are disposed on both the connecting sleeve and the fixing sleeve, a bearing seat for connecting the rolling bearings is disposed on the bracket, and the rolling bearings are rotatably disposed on the bearing seat.

[0016] In some embodiments, the driving assembly includes a transmission gear coaxially sleeved on the rotating roller and a transmission motor for driving the transmission gear to rotate, and the transmission gear is located outside the outer cover.

[0017] In some embodiments, the feed assembly includes a flushing pipe, a feed pipe connected to the flushing pipe, a distributor arranged at one end of the flushing pipe, an opening formed at the other end of the flushing pipe, the distributor is connected to the flushing pipe, and one end of the distributor is inserted into the outer cover and connected to the sorting chamber.

[0018] In some embodiments, a feed head is provided at one end of the feed pipe away from the flushing pipe, and both ends of the feed head are open, and the feed head is formed into a funnel shape.

[0019] In some embodiments, an adjustment plate for adjusting the outlet size is provided at the bottom of the distributor.

[0020] Through the above technical solution, when the magnetic system is excited, the rotating roller placed in the magnetic system can generate a high magnetic field force at the surface magnetic medium to adsorb weak magnetic particles; on the other hand, the radial gas-water flow ejected from the inside of the rotating roller to the outside can fluidize the particle group on the surface of the roller body, so that the gangue minerals and the poor intergrowth particles are away from the high magnetic area on the roller surface, effectively avoiding the mechanical inclusion of gangue minerals and the traction inclusion of poor intergrowths, strengthening the sorting process, and thus obtaining higher sorting accuracy and efficiency. Based on the traditional electromagnetic induction roller high-intensity magnetic separator, this magnetic separator provides fluidized gas-water from the roller surface, solving the technical bottleneck that the traditional induction roller high-intensity magnetic separator is difficult to sort fine weak magnetic particles under dry or wet conditions due to insufficient dispersion and competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of an electromagnetic induction roller-type high-intensity magnetic separator in an embodiment of the present application;

[0022] Figure 2 is a schematic diagram of the structure of the magnetic system in the embodiment of the present application;

[0023] Figure 3 is a schematic structural diagram of a rotating roller in an embodiment of the present application;

[0024] Figure 4 is a cross-sectional view of a rotating roller in an embodiment of the present application;

[0025] Figure 5 yes Figure 4 A magnified view of part A;

[0026] Figure 6 It is a schematic diagram of the structure of a magnetic medium cylinder;

[0027] Figure 7 It is a structural schematic diagram of the feed component.

[0028] Description of Reference Numerals

[0029] 1. Bracket; 2. Magnetic system; 21. Magnetic yoke; 22. Magnetic pole head; 23. Excitation coil; 3. Rotating roller; 31. Fixed sleeve; 32. Connecting sleeve; 33. Hollow tube; 331. External flow trough; 34. Fixing bolt; 35. Magnetic medium cylinder; 351. Porous cylinder; 352. Magnetic conductive medium wire; 353. Fixed plate; 36. Rolling bearing; 37. Bearing seat; 4. External transparent ring; 5. Conductive magnetic disk; 6. Driving assembly; 61. Transmission gear; 7. Outer cover; 8. Feed assembly; 81. Flushing pipe; 82. Feed pipe; 83. Distributor; 84. Feed head. DETAILED DESCRIPTION

[0030] The specific implementation of the present application is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present application, and is not used to limit the present application.

[0031] In this application, unless otherwise stated, the meaning of "multiple" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating directions or positional relationships, are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present disclosure. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0032] Reference Figure 1 The present application discloses an electromagnetic induction roller type high-intensity magnetic separator, comprising a bracket 1, characterized in that a magnetic system 2 for exciting a magnetic field and a rotating roller 3 passing through the magnetic field excited by the magnetic system 2 are arranged on the bracket 1, and the rotating roller 3 is rotatably arranged on the bracket 1;

[0033] The rotating roller 3 is hollow inside and has an opening at one end. An outer transparent ring 4 is sleeved on the rotating roller 3. A guide magnetic disk 5 is attached to the outer circumference of the outer transparent ring 4. The outer transparent ring 4 is connected to the rotating roller 3. The outer transparent ring 4 and the guide magnetic disk 5 are coaxial and both are arranged in the magnetic field. The water flow or air flow fed into the rotating roller 3 through the opening is ejected outward along the radial direction of the outer transparent ring 4.

[0034] The bracket 1 is provided with an outer cover 7 and a driving assembly 6 for driving the rotating roller 3 to rotate. The outer transparent ring 4 and the guide magnetic disk 5 rotate synchronously with the rotating roller 3. A sorting chamber is formed in the outer cover 7, and the magnetic field is excited in the sorting chamber.

[0035] A feeding assembly 8 is connected to the outer cover 7 so as to be able to feed materials into the sorting chamber.

[0036] The electromagnetic induction roller type high-intensity magnetic separator disclosed in the present application comprises a bracket 1, which is composed of a horizontal plate and four supporting columns arranged on the lower surface of the horizontal plate. A magnetic system 2 is placed on the upper surface of the horizontal plate, and a magnetic field for separation is generated by the magnetic system 2. A rotating roller 3 is also rotatably arranged on the upper surface of the horizontal plate, and the rotating roller 3 is placed horizontally and penetrates the magnetic field. A driving component 6 connected to the rotating roller 3 is arranged on the bracket 1, and driven by the driving component 6, a part of the rotating roller 3 rotates in the magnetic field.

[0037] An outer cover 7 is also placed on the bracket 1. The outer cover 7 is in a square box shape. The inner part of the outer cover 7 is hollow to form a sorting chamber. The magnetic field is excited in the outer cover 7. The rotating roller 3 passes through the outer cover 7 and both ends of the rotating roller 3 are exposed outside the outer cover 7. A feeding assembly 8 is arranged at the top of the outer cover 7. The feeding assembly 8 is connected to the sorting chamber. When the sorting operation is performed, the material to be sorted is introduced into the sorting chamber through the feeding assembly 8.

[0038] The rotating roller 3 is a straight tube with a hollow interior. An opening is formed at one end of the rotating roller 3. An outer transparent ring 4 is sleeved on the rotating roller 3. The outer transparent ring 4 is in communication with the inner cavity of the rotating roller 3. After high-pressure water vapor is introduced into the rotating roller 3, it can be sprayed radially outward through the outer transparent ring 4. A conductive magnetic disk 5 is also sleeved on the rotating roller 3. The conductive magnetic disk 5 is arranged in contact with the outer transparent ring 4. The conductive magnetic disk 5 is made of a magnetic conductive material with high saturation magnetic flux. After high-pressure water vapor is introduced into the rotating roller 3, the outer transparent ring 4 is discharged out of the rotating roller 3 to provide a drag force field for enhanced separation.

[0039] The lower part of the rotating roller 3 is provided with a concentrate tailings receiving trough and a concentrate flushing water pipe, and a valve is provided on the concentrate flushing water pipe for adjusting the flushing water volume.

[0040] During the sorting operation, a magnetic field is generated in the sorting chamber through the magnetic system 2, and the magnetic conductive sheet on the surface of the rotating roller 3 is magnetized, generating a high magnetic field force; the high-pressure fan or water pump delivers high-pressure air and water into the rotating roller 3 through the air supply water pipe and sprays it from the inside to the outside through the outer ring 4 perpendicular to the cylinder surface, adding a radial force field. At the same time, the rotating roller 3 rotates in the circumferential direction driven by the driving component 6; the material to be sorted enters the sorting chamber through the feeding component 8 and is evenly fed to the surface of the rotating roller 3. The material on the surface of the rotating roller 3 is dispersed under the action of the water vapor sprayed vertically from the cylinder surface, wherein the magnetic force on the magnetic material is greater than the fluid drag force and is adsorbed on the surface of the rotating roller 3, and the magnetic force on the non-magnetic material is less than the fluid drag force and is taken away from the surface of the rotating roller 3. After the rotating roller 3 turns to the non-magnetic area, the magnetic material is flushed into the concentrate tailings receiving trough by the concentrate flushing water pipe, realizing the separation of magnetic materials and non-magnetic materials. .

[0041] The electromagnetic induction roller type strong magnetic separator disclosed in the present application is based on the traditional electromagnetic induction roller type strong magnetic separator, and the rotating roller 3 is replaced by a hollow roller from a solid roller. High-pressure gas and water flow is filled into the rotating roller 3 from the outside, and the high-pressure gas and water flow inside the roller is radially ejected from the outer transparent ring 4 from the inside to the outside, providing an adjustable radial airflow and water flow disturbance to the traditional electromagnetic induction roller type strong magnetic separator. When the magnetic system 2 is excited, the rotating roller 3 placed in the magnetic system 2 can generate a high magnetic field force at the surface magnetic medium to adsorb weak magnetic particles; on the other hand, driven by the radial airflow and water flow disturbance, the particle group on the surface of the fluidized roller body can be driven to keep the gangue minerals and the poor intergrowth particles away from the high magnetic force area on the roller surface, effectively avoiding the mechanical inclusion of the gangue minerals and the traction inclusion of the poor intergrowth, strengthening the sorting process, thereby obtaining higher sorting accuracy and efficiency. While effectively improving the sorting accuracy of the equipment, it can also be applied to the sorting operations of various weak magnetic materials, broadening the application range of the equipment. At the same time, the electromagnetic induction roller high-intensity magnetic separator can be used for both dry and wet separation of weakly magnetic materials without changing the overall structure of the equipment, which greatly expands the versatility of the device.

[0042] Reference Figure 1 and Figure 2 In some embodiments, the magnetic system 2 includes a yoke 21 and two magnetic pole heads 22 arranged at both ends of the yoke 21. The two magnetic pole heads 22 face each other and there is a gap between them to form a magnetic field space. The magnetic disk 5 and the outer transparent ring 4 are both located in the magnetic field space. An excitation coil 23 is wound around one end of the yoke 21, and the excitation coil 23 is arranged on the side of the magnetic pole head 22 away from the magnetic field space.

[0043] In some embodiments, the magnetic system 2 includes a C-shaped magnetic yoke 21, with magnetic pole heads 22 disposed at both ends of the magnetic yoke 21, and the two magnetic pole heads 22 are spaced apart from each other. An excitation coil 23 is sleeved on the magnetic yoke 21, and the excitation coil 23 is connected to an external current control system. The magnetic field generated by the excitation coil 23 forms a closed magnetic circuit through the magnetic yoke 21 and the two magnetic pole heads 22, and a magnetic field is generated between the two magnetic pole heads 22.

[0044] The shapes of the yoke 21 and the two magnetic pole heads 22 can be adjusted according to different application scenarios, and magnetic conductive material blocks of different thicknesses can be added between the two magnetic pole heads 22 to adjust the sorting gap.

[0045] Reference Figure 1 and Figure 2 In some embodiments, the excitation coil 23 includes a plurality of sub-coils and a current controller for adjusting the magnetic field distribution on the surface of the rotating roller 3. The plurality of sub-coils are wound around the outside of the magnetic yoke 21, and the adjacent two sub-coils are closely arranged, and each sub-coil is connected to the current controller.

[0046] In some embodiments, the exciting coil 23 includes a plurality of sub-coils and a current controller. The current controller is a controller for controlling the plurality of sub-coils to supply direct current at the same time. The sub-coils are wound around the outside of the magnetic yoke 21, and two adjacent sub-coils are closely arranged. The current controller adjusts the current supplied, thereby adjusting the magnetic field distribution on the surface of the rotating roller 3.

[0047] Reference Figure 3 and Figure 4 In some embodiments, the rotating roller 3 includes a fixing sleeve 31, a connecting sleeve 32 and a hollow tube 33 inserted in the connecting sleeve 32. The fixing sleeve 31 and the connecting sleeve 32 are arranged opposite to each other, and a fixing bolt 34 is arranged between the fixing sleeve 31 and the connecting sleeve 32.

[0048] One end of the hollow tube 33 inserted into the connecting sleeve 32 is in a closed state, and the end of the hollow tube 33 exposed to the outside is in an open state. An outer flow groove 331 is provided on the outer wall of the hollow tube 33 adjacent to the fixed sleeve 31, and the outer flow groove 331 allows the hollow tube 33 to communicate with the outer transparent ring 4;

[0049] The outer transparent ring 4 and the guide magnetic disk 5 are arranged between the fixed sleeve 31 and the connecting sleeve 32. Several outer transparent rings 4 are arranged at intervals from the connecting sleeve 32 toward the fixed sleeve 31. A guide magnetic disk 5 is arranged between any two adjacent outer transparent rings 4. The fixing bolts 34 pass through the outer transparent ring 4 and the guide magnetic disk 5.

[0050] In some embodiments, the rotating roller 3 includes a fixed sleeve 31 and a connecting sleeve 32 that are arranged opposite to each other. The interior of the fixed sleeve 31 is sealed, and the interior of the connecting sleeve 32 is hollow. A plurality of fixing bolts 34 are inserted between the fixed sleeve 31 and the connecting sleeve 32. The plurality of fixing bolts 34 are arranged along the circumference of the rotating roller 3, and the fixed sleeve 31 and the connecting sleeve 32 are fixed by the fixing bolts 34. A hollow tube 33 is inserted in the connecting sleeve 32. The hollow tube 33 is a straight tube. One end of the hollow tube 33 is inserted into the connecting sleeve 32 to form a closed shape, and the other end is open. The open end is connected to an external high-pressure fan or water pump. One end of the hollow tube 33 inserted into the connecting sleeve 32 abuts against the side wall of the fixed sleeve 31.

[0051] Multiple outer transparent rings 4 are provided between the connecting sleeve 32 and the fixed sleeve 31, and the multiple outer transparent rings 4 are arranged at intervals. Each outer transparent ring 4 is coaxially sleeved on the hollow tube 33. A guide disk 5 is provided between any two adjacent outer transparent rings 4, and the fixing bolt 34 passes through the outer transparent ring 4 and the guide disk 5. An outer flow groove 331 is provided on the outer side wall of the hollow tube 33 adjacent to the fixed sleeve 31, and the water flow entering the hollow tube 33 flows to the outer transparent ring 4 through the outer flow groove 331 and flows outward.

[0052] Reference Figure 4 and Figure 5In some embodiments, a magnetic medium cylinder 35 is disposed on the outer cover of the outer transparent ring 4. The magnetic medium cylinder 35 is disposed in a magnetic field. The magnetic medium cylinder 35 includes a porous cylinder 351, a magnetic conductive medium wire 352 wound on the porous cylinder 351, and a plurality of fixing plates 353 for pressing the magnetic conductive medium wire 352. The plurality of fixing plates 353 are evenly arranged along the circumference of the porous cylinder 351.

[0053] In some embodiments, a magnetic medium cylinder 35 is disposed on the outer transparent ring 4, and the magnetic medium cylinder 35 is located in the sorting chamber, and the magnetic field force on the surface of the rotating roller 3 is enhanced by the magnetic medium cylinder 35. The magnetic medium cylinder 35 includes a porous cylinder 351, the inner wall of the porous cylinder 351 is in contact with the outer wall of the outer transparent ring 4, and the porous cylinder 351 is made of a porous stainless steel plate, and the gas and water flow can flow through the openings on the porous cylinder 351. A plurality of circles of magnetic conductive medium wires 352 are sleeved on the outer circumference of the porous cylinder 351, and the magnetic conductive medium wires 352 are arranged in parallel on the surface of the porous cylinder 351 at a spacing of 1 to 3 mm. The size, shape, and material of the magnetic conductive medium wires 352 can be arbitrarily changed according to different application occasions. A plurality of fixed plates 353 are also fixedly connected to the outer circumference of the porous cylinder 351, and the fixed plates 353 are evenly arranged along the circumference of the porous cylinder 351, and the magnetic conductive medium wires 352 are pressed on the surface of the porous cylinder 351 by the fixed plates 353.

[0054] Reference Figure 1 and Figure 3 In some embodiments, rolling bearings 36 are disposed on both the connecting sleeve 32 and the fixing sleeve 31 , and a bearing seat 37 for connecting the rolling bearing 36 is disposed on the bracket 1 , and the rolling bearing 36 is rotatably disposed on the bearing seat 37 .

[0055] In some embodiments, two bearing seats 37 are fixedly connected to the bracket 1, and the two bearing seats 37 are respectively located on both sides of the outer cover 7. Rolling bearings 36 are provided on the connecting sleeve 32 and the fixing sleeve 31. The two rolling bearings 36 correspond to the two bearing seats 37 one by one, and the rolling bearings 36 are rotatably provided on the bearing seats 37. The rolling bearings 36 cooperate with the bearing seats 37 to fix the rotating roller 3 on the bracket 1, and keep the rotating roller 3 stable when rotating on the bracket 1.

[0056] Reference Figure 1 and Figure 3 In some embodiments, the driving assembly 6 includes a transmission gear 61 coaxially sleeved on the rotating roller 3 and a transmission motor for driving the transmission gear 61 to rotate, and the transmission gear 61 is located outside the outer cover 7.

[0057] In some embodiments, a transmission gear 61 is sleeved on the outer wall of the fixed sleeve 31 outside the outer cover 7. The transmission gear 61 is coaxial with the fixed sleeve 31. The outside of the transmission gear 61 is connected to a transmission motor. The transmission motor drives the transmission gear 61 to rotate, thereby driving the rotating roller 3 to rotate. The transmission gear 61 and the transmission motor constitute the driving assembly 6 of the present application. Driven by the driving assembly 6, the rotating roller 3 rotates in the circumferential direction.

[0058] Reference Figure 1 and Figure 6 In some embodiments, the feed assembly 8 includes a flushing pipe 81, a feed pipe 82 connected to the flushing pipe 81, and a divider 83 arranged at one end of the flushing pipe 81, an opening is formed at the other end of the flushing pipe 81, the divider 83 is connected to the flushing pipe 81, and one end of the divider 83 is inserted into the outer cover 7 and connected to the sorting chamber.

[0059] In some embodiments, a flushing pipe 81 is placed above the outer cover 7. The flushing pipe 81 is a horizontally arranged hollow straight pipe. Both ends of the flushing pipe 81 are open. One end of the flushing pipe 81 is connected to a distributor 83. The lower end of the distributor 83 is open. A section of the separator opening is inserted into the outer cover 7 and connected to the sorting chamber. The flushing pipe 81 is connected to a feed pipe 82. The feed pipe 82 is a vertically arranged hollow straight pipe. The flushing pipe 81, the feed pipe 82 and the distributor 83 constitute the feed assembly 8 of the present application. When feeding, a water flow is introduced into the flushing pipe 81, and the material is input through the feed pipe 82. After being dispersed by the water vapor in the flushing pipe 81, the material enters the distributor 8322, and is evenly fed to the surface of the rotating roller 3 by the distributor 83.

[0060] Reference Figure 1 and Figure 6 In some embodiments, a feed head 84 is provided at one end of the feed pipe 82 away from the flushing pipe 81 , and both ends of the feed head 84 are open, and the feed head 84 is formed into a funnel shape.

[0061] In some embodiments, the upper end of the feed pipe 82 is connected to a feed head 84, which is wide at the top and narrow at the bottom. The diameter of the upper end of the feed head 84 is greater than the diameter of the lower end, and the funnel-shaped structure ensures the stability of the material falling.

[0062] Reference Figure 1 and Figure 6 In some embodiments, an adjustment plate for adjusting the outlet size is provided at the bottom of the distributor 83 .

[0063] In some embodiments, an outlet size adjustment plate is provided at the bottom of the distributor 83, and the feed amount can be adjusted by adjusting the outlet size adjustment plate to be suitable for different materials to be sorted.

[0064] In an optimal embodiment of the electromagnetic induction roller high-intensity magnetic separator disclosed in the present invention, the bracket 1 includes a horizontal plate and four supporting columns arranged on the lower surface of the horizontal plate. A magnetic system 2 is placed on the upper surface of the horizontal plate, and a magnetic field for separation is generated by the magnetic system 2.

[0065] The magnetic system 2 includes a C-shaped magnetic yoke 21, with magnetic pole heads 22 disposed at both ends of the magnetic yoke 21, and the two magnetic pole heads 22 are spaced apart from each other. An excitation coil 23 is sleeved on the magnetic yoke 21, and the excitation coil 23 is connected to an external current control system. The magnetic field generated by the excitation coil 23 forms a closed magnetic circuit through the magnetic yoke 21 and the two magnetic pole heads 22, and a magnetic field is generated between the two magnetic pole heads 22.

[0066] The shapes of the yoke 21 and the two magnetic pole heads 22 can be adjusted according to different application scenarios, and magnetic conductive material blocks of different thicknesses can be added between the two magnetic pole heads 22 to adjust the sorting gap.

[0067] The exciting coil 23 includes a plurality of sub-coils and a current controller. The current controller is a controller for controlling the plurality of sub-coils to supply direct current at the same time. The sub-coils are wound around the outside of the magnetic yoke 21, and two adjacent sub-coils are closely arranged.

[0068] A rotating roller 3 is also rotatably arranged on the upper surface of the horizontal plate. The rotating roller 3 is placed horizontally and penetrates the magnetic field. A driving assembly 6 connected to the rotating roller 3 is arranged on the bracket 1. Driven by the driving assembly 6, a part of the rotating roller 3 rotates in the magnetic field. The magnetic field distribution on the surface of the rotating roller 3 can be adjusted by adjusting the current supplied by the current controller.

[0069] The rotating roller 3 comprises a fixed sleeve 31 and a connecting sleeve 32 which are arranged opposite to each other. The interior of the fixed sleeve 31 is sealed, and the interior of the connecting sleeve 32 is hollow. A plurality of fixing bolts 34 are inserted between the fixed sleeve 31 and the connecting sleeve 32. The plurality of fixing bolts 34 are arranged along the circumference of the rotating roller 3, and the fixed sleeve 31 and the connecting sleeve 32 are fixed by the fixing bolts 34. A hollow tube 33 is inserted in the connecting sleeve 32. The hollow tube 33 is a straight tube. One end of the hollow tube 33 is inserted into the connecting sleeve 32 to form a closed shape, and the other end is open. The open end is connected to an external high-pressure fan or water pump. One end of the hollow tube 33 inserted into the connecting sleeve 32 abuts against the side wall of the fixed sleeve 31.

[0070] The rotating roller 3 is sleeved with an outer transparent ring 4, which is in communication with the inner cavity of the rotating roller 3. The rotating roller 3 is also sleeved with a conductive magnetic disk 5, which is arranged in close contact with the outer transparent ring 4. The conductive magnetic disk 5 is made of a magnetic conductive material with high saturation magnetic flux. Multiple pieces of the outer transparent ring 4 are arranged between the connecting sleeve 32 and the fixed sleeve 31. The multiple pieces of the outer transparent ring 4 are arranged at intervals. Each outer transparent ring 4 is coaxially sleeved on the hollow tube 33. A conductive magnetic disk 5 is arranged between any two adjacent pieces of the outer transparent ring 4. The fixing bolt 34 passes through the outer transparent ring 4 and the conductive magnetic disk 5. An outer flow groove 331 is opened on the outer side wall of the hollow tube 33 adjacent to the fixed sleeve 31.

[0071] The outer transparent ring 4 is provided with a magnetic medium cylinder 35, and the magnetic medium cylinder 35 is located in the sorting chamber. The magnetic medium cylinder 35 includes a porous cylinder 351, the inner wall of the porous cylinder 351 is in contact with the outer wall of the outer transparent ring 4, and the porous cylinder 351 is made of a porous stainless steel plate, and the gas (water) flow can flow through the opening on the porous cylinder 351. A plurality of circles of magnetic conductive medium wires 352 are sleeved on the outer circumference of the porous cylinder 351, and the magnetic conductive medium wires 352 are arranged in parallel on the surface of the porous cylinder 351 at a spacing of 1 to 3 mm. The size, shape and material of the magnetic conductive medium wires 352 can be arbitrarily changed according to different application occasions. A plurality of fixed plates 353 are also fixedly connected to the outer circumference of the porous cylinder 351, and the fixed plates 353 are evenly arranged along the circumference of the porous cylinder 351, and the magnetic conductive medium wires 352 are pressed on the surface of the porous cylinder 351 by the fixed plates 353.

[0072] The lower part of the rotating roller 3 is provided with a concentrate tailings receiving trough and a concentrate flushing water pipe, and a valve is provided on the concentrate flushing water pipe for adjusting the flushing water volume.

[0073] An outer cover 7 is also placed on the bracket 1. The outer cover 7 is in a square box shape. The inner part of the outer cover 7 is hollow to form a sorting chamber. The magnetic field is excited in the outer cover 7. The rotating roller 3 passes through the outer cover 7 and both ends of the rotating roller 3 are exposed outside the outer cover 7. A feeding assembly 8 is arranged at the top of the outer cover 7, and the feeding assembly 8 is connected to the sorting chamber.

[0074] Two bearing seats 37 are fixedly connected to the bracket 1. The two bearing seats 37 are respectively located on both sides of the outer cover 7. Rolling bearings 36 are provided on the connecting sleeve 32 and the fixed sleeve 31. The two rolling bearings 36 correspond to the two bearing seats 37 one by one. The rolling bearings 36 are rotatably arranged on the bearing seats 37.

[0075] A flushing pipe 81 is placed above the outer cover 7. The flushing pipe 81 is a horizontally arranged hollow straight pipe. Both ends of the flushing pipe 81 are open. One end of the flushing pipe 81 is connected to a distributor 83. The lower end of the distributor 83 is open. An outlet size adjustment plate is provided at the bottom opening of the distributor 83. A section of the separator opening is inserted into the outer cover 7 and is connected to the sorting chamber. A feed pipe 82 is connected to the flushing pipe 81. The feed pipe 82 is a vertically arranged hollow straight pipe. The upper end of the feed pipe 82 is connected to a feed head 84. The feed head 84 is wide at the top and narrow at the bottom. The diameter of the upper end of the feed head 84 is greater than the diameter of the lower end.

[0076] The flushing pipe 81, the feed pipe 82 and the distributor 83 constitute the feed assembly 8 of the present application. When feeding, a water (gas) flow is introduced into the flushing pipe 81, and the material is input through the feed pipe 82. After being dispersed by the water (gas) in the flushing pipe 81, it enters the distributor 8322 and is evenly fed to the surface of the rotating roller 3 by the distributor 83.

[0077] So far, various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0078] Although some specific embodiments of the present disclosure have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present disclosure. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict.

Claims

1. An electromagnetic induction roller type high-intensity magnetic separator, comprising a bracket (1), characterized in that: The support (1) is provided with a magnetic system (2) for exciting a magnetic field and a rotating roller (3) passing through the magnetic field excited by the magnetic system (2), and the rotating roller (3) is rotatably arranged on the support (1); The rotating roller (3) is hollow inside and has an opening at one end. An outer transparent ring (4) is sleeved on the rotating roller (3). A guide magnetic disk (5) is attached to the outer circumferential surface of the outer transparent ring (4). The outer transparent ring (4) is connected to the rotating roller (3). The outer transparent ring (4) and the guide magnetic disk (5) are coaxial and both are arranged in a magnetic field. The water flow or air flow fed into the rotating roller (3) through the opening is ejected outward along the radial direction of the outer transparent ring (4). The support (1) is provided with an outer cover (7) and a driving assembly (6) for driving the rotating roller (3) to rotate; the outer transparent ring (4) and the guide magnetic disk (5) both rotate synchronously with the rotating roller (3); a sorting chamber is formed in the outer cover (7), and a magnetic field is excited in the sorting chamber; The outer cover (7) is connected to a feeding assembly (8) so as to be able to feed materials into the sorting chamber.

2. The electromagnetic induction roller type high-intensity magnetic separator according to claim 1, characterized in that: The magnetic system (2) comprises a magnetic yoke (21) and two magnetic pole heads (22) arranged at two ends of the magnetic yoke (21), the two magnetic pole heads (22) facing each other and having a gap therebetween to form a magnetic field space, the magnetic guide disk (5) and the outer transparent ring (4) are both located in the magnetic field space, an excitation coil (23) is wound around one end of the magnetic yoke (21), and the excitation coil (23) is arranged on a side of the magnetic pole head (22) facing away from the magnetic field space.

3. The electromagnetic induction roller type high-intensity magnetic separator according to claim 2, characterized in that: The excitation coil (23) comprises a plurality of sub-coils and a current controller for adjusting the magnetic field distribution on the surface of the rotating roller (3); the plurality of sub-coils are wound around the outside of the magnetic yoke (21), and are closely arranged between two adjacent sub-coils, and each of the sub-coils is connected to the current controller.

4. The electromagnetic induction roller type high-intensity magnetic separator according to claim 1, characterized in that: The rotating roller (3) comprises a fixing sleeve (31), a connecting sleeve (32) and a hollow tube (33) inserted into the connecting sleeve (32); the fixing sleeve (31) and the connecting sleeve (32) are arranged opposite to each other, and a fixing bolt (34) is arranged between the fixing sleeve (31) and the connecting sleeve (32); One end of the hollow tube (33) inserted into the connecting sleeve (32) is in a closed state, and the end of the hollow tube (33) exposed to the outside is in an open state. An outer flow groove (331) is provided on the outer wall of the hollow tube (33) adjacent to the fixing sleeve (31), and the outer flow groove (331) enables the hollow tube (33) to communicate with the outer transparent ring (4); The outer transparent ring (4) and the guide magnetic disk (5) are arranged between the fixed sleeve (31) and the connecting sleeve (32); a plurality of the outer transparent rings (4) are arranged at intervals in a direction from the connecting sleeve (32) toward the fixed sleeve (31); the guide magnetic disk (5) is arranged between any two adjacent outer transparent rings (4); and the fixing bolt (34) passes through the outer transparent ring (4) and the guide magnetic disk (5).

5. The electromagnetic induction roller type high intensity magnetic separator according to claim 4, characterized in that: The outer transparent ring (4) is provided with a magnetic medium cylinder (35) on its outer sleeve. The magnetic medium cylinder (35) is arranged in the magnetic field space. The magnetic medium cylinder (35) comprises a porous cylinder (351), a magnetic conductive medium wire (352) wound around the porous cylinder (351), and a plurality of fixing plates (353) for pressing the magnetic conductive medium wire (352). The plurality of fixing plates (353) are evenly spaced and arranged along the circumference of the porous cylinder (351).

6. The electromagnetic induction roller type high-intensity magnetic separator according to claim 4, characterized in that: The connecting sleeve (32) and the fixing sleeve (31) are both provided with rolling bearings (36), the bracket (1) is provided with a bearing seat (37) for connecting the rolling bearing (36), and the rolling bearing (36) is rotatably arranged on the bearing seat (37).

7. The electromagnetic induction roller type high-intensity magnetic separator according to any one of claims 1 to 6, characterized in that: The driving assembly (6) comprises a transmission gear (61) coaxially sleeved on the rotating roller (3) and a transmission motor used for driving the transmission gear (61) to rotate, and the transmission gear (61) is located outside the outer cover (7).

8. The electromagnetic induction roller type high-intensity magnetic separator according to any one of claims 1 to 6, characterized in that: The feed assembly (8) comprises a flushing pipe (81), a feed pipe (82) connected to the flushing pipe (81), and a distributor (83) arranged at one end of the flushing pipe (81), the other end of the flushing pipe (81) is formed with an opening, the distributor (83) is connected to the flushing pipe (81), and one end of the distributor (83) is inserted into the outer cover (7) and is connected to the sorting chamber.

9. The electromagnetic induction roller type high-intensity magnetic separator according to claim 8, characterized in that: A feed head (84) is provided at one end of the feed pipe (82) away from the flushing pipe (81), and both ends of the feed head (84) are open, and the feed head (84) is formed in a funnel shape.

10. The electromagnetic induction roller type high intensity magnetic separator according to claim 8, characterized in that: The bottom of the distributor (83) is provided with an adjustment plate for adjusting the outlet size.

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