Superconducting magnetic separation device for magnetic lepidolite coarse ore and screening method

Abstract

The invention discloses a superconducting magnetic separation device for magnetic lepidolite coarse ore and a screening method, and relates to the technical field of superconducting magnetic separation equipment, the superconducting magnetic separation device comprises a separation cylinder, a rinsing bath, a shifting mechanism, a second connecting shaft, a first connecting shaft, a first supporting sleeve, a first supporting rod and a first supporting strip. When the separation barrel conducts superconducting magnetic separation on mineral aggregate, a stirring mechanism conducts stirring treatment on mineral aggregate mixed liquid in the washing tank, and a first supporting strip conducts blocking, guiding and stirring treatment on water flow and the mineral aggregate on the outer side of the surface of a first supporting rod; according to the magnetic separation device, mineral aggregate mixed liquid in the rinsing bath is continuously stirred and dispersed in the magnetic separation process, so that the mineral aggregate can be effectively prevented from being layered in the mixed liquid, the mineral aggregate is more fully contacted with the surface of the separation cylinder, the magnetic separation treatment effect on the mineral aggregate is effectively improved, the number of rotation circles of the separation cylinder is reduced, and the working time of the separation cylinder is shortened; the equipment working efficiency can be effectively improved, and the equipment energy consumption is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of superconducting magnetic separation equipment, in particular to a superconducting magnetic separation device and a screening method for coarse magnetic lepidolite ore. Background Art

[0002] Lepidolite is mainly composed of potassium, lithium, aluminum and silicate, with a glassy to pearly luster. The processing flow of lepidolite includes crushing, grinding, separation and dehydration. The lepidolite concentrate and by-products are recovered by flotation, gravity separation and magnetic separation. The magnetic separation method is a process that utilizes the weak magnetic characteristics of lepidolite to separate it from other non-magnetic minerals by adjusting the magnetic field. Most of the magnetic minerals in lepidolite ore are weakly magnetic minerals. A strong magnetic separator is used to remove magnetic minerals or iron-containing impurities in lithium concentrate by utilizing the magnetic difference between minerals. A superconducting magnetic separator is a strong magnetic field magnetic separator that uses superconductor to wind magnetic coils. Superconducting magnetic separators are generally divided into two categories: open gradient superconducting magnetic separators and high gradient superconducting magnetic separators.

[0003] The open gradient superconducting magnetic separator has no magnetic medium, and uses the appropriate shape and arrangement of the magnetic coil to generate a magnetic field gradient, with a large magnetic force range; there are three representative models: the British MK-4 machine, the British Cryofos GLF linear machine and the German DESCOS drum superconducting magnetic separator. Among them, the German DESCOS drum superconducting magnetic separator consists of a superconducting magnetic system composed of D-shaped coils, a cooling system (including helium supply pipelines, vacuum pipelines, vacuum tanks and radiation screens, etc.), and a separation cylinder. It combines the advantages of superconducting technology and drum magnetic separators, and the separation process is the same as that of general drum magnetic separators; the production cost is low, and it can directly replace the drum magnetic separator in the production process. However, the tank body mainly uses water flow to push the ore to move. The ore will produce stratification under its own gravity, and the ore cannot be evenly contacted with the cylinder body. In this way, the cylinder body needs to increase the number of rotations and extend the magnetic separation working time to ensure the magnetic separation treatment effect of the ore, resulting in low equipment efficiency and high energy consumption. Summary of the invention

[0004] The object of the present invention is to provide a superconducting magnetic separation device and screening method for magnetic lithium mica coarse ore to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a superconducting magnetic separation device and screening method for magnetic lithium mica coarse ore, comprising a sorting drum and a water washing tank, the sorting drum is horizontally rotatably arranged at the top of the water washing tank, a superconducting D-shaped coil is provided on one side of the interior of the sorting drum, a toggle mechanism is provided on the outside of the sorting drum inside the water washing tank, an ore inlet is provided on the top of one side of the water washing tank, a flushing water pipe is provided on the outside of the sorting drum on the top of the other side of the water washing tank, a concentrate bucket is provided on the side of the bottom of the water washing tank away from the ore inlet, and a tailings outlet is provided at the bottom of the water washing tank between the ore inlet and the concentrate bucket.

[0006] Furthermore, the toggle mechanism includes a second connecting shaft and several first connecting shafts, the outer wall of the first connecting shaft is sleeved with several first support sleeves connected in rotation, a first torsion spring is arranged between the first connecting shaft and the first support sleeve, a first support rod is arranged on the outer wall of the first support sleeve, and several first support bars are arranged obliquely on the outer wall of the first support rod, a sealing plate connected in rotation is arranged between the top of the inner wall of the tailings opening and the bottom of the washing tank, a servo electric cylinder connected in rotation is arranged on the side of the outer wall of the sealing plate away from the washing tank, and the end of the servo electric cylinder away from the sealing plate is rotatably connected to the outer wall of the concentrate bucket, the second connecting shaft is arranged on the side of the inner wall of the sealing plate away from the servo electric cylinder, the outer wall of the second connecting shaft is sleeved with several second support sleeves connected in rotation, a second torsion spring is arranged between the second connecting shaft and the second support sleeve, a second support rod is arranged on the outer wall of the second support sleeve, and several second support bars are arranged obliquely on the outer wall of the second support rod, and the second connecting shaft and the first connecting shaft are arranged in parallel.

[0007] Furthermore, a distance between two adjacent first connecting axes is greater than twice the length of the first support rod, and a distance between two adjacent first connecting axes is less than three times the length of the first support rod.

[0008] Furthermore, the distance between the outer wall of the sorting barrel and the bottom of the inner wall of the washing tank is greater than the length of the first support rod, and the distance between the outer wall of the sorting barrel and the bottom of the inner wall of the washing tank is less than twice the length of the first support rod.

[0009] Furthermore, four groups of first support bars are arranged on the outer wall of each first support rod, the four groups of first support bars are distributed in a cross shape, and the first support bars in the same group are arranged in parallel from top to bottom; four groups of second support bars are arranged in four groups, the four groups of second support bars are distributed in a cross shape, and the second support bars in the same group are arranged in parallel from top to bottom, and the inclination direction of the first support bars and the second support bars is toward the sorting barrel.

[0010] Furthermore, the outer wall of the sealing plate is rotatably connected to one end of the servo electric cylinder via a third connecting shaft, and the outer wall of the tailings outlet is provided with an opening matching the servo electric cylinder below the third connecting shaft.

[0011] Furthermore, the two first connecting shafts located at both ends of the toggle mechanism are fixedly connected to the water washing tank, the first connecting shaft located between the two ends of the toggle mechanism is rotatably connected to the water washing tank, the second connecting shaft is fixedly connected to the sealing plate, one end of the first connecting shaft located between the two ends of the toggle mechanism extends to the outside of the water washing tank and is provided with a first gear, and the two ends of the toggle mechanism are provided with second gears rotatably connected on the outside of the water washing tank, the toggle mechanism is provided with an annular toothed belt matching the first gear and the second gear on the outside of the water washing tank, the inner wall of the annular toothed belt is provided with a plurality of groups of teeth meshing with the first gear and the second gear, the outer wall of the water washing tank is provided with a servo motor, and the output shaft of the servo motor is fixedly connected to the center of the outer wall of a second gear.

[0012] Furthermore, the spacing between two adjacent groups of teeth is greater than the minimum distance between two adjacent first gears, and the spacing between two adjacent groups of teeth is less than the maximum distance between two adjacent first gears. The outer wall of the washing tank is provided with a plurality of rotatably connected guide wheels above the annular toothed belt, and the guide wheels are distributed in an arc shape, the first connecting shaft is distributed in an arc shape, and the arc distribution trajectory of the guide wheels is parallel to the arc distribution trajectory of the first connecting shaft.

[0013] Furthermore, support shafts are provided at both ends of the outer wall of the sorting barrel, and the support shafts are rotatably connected to the water washing tank through bearings. A nitrogen supply pipeline, a vacuum pipeline and a power supply wire are provided on the outer wall of the support shaft, and the nitrogen supply pipeline, the vacuum pipeline and the power supply wire all extend into the interior of the sorting barrel.

[0014] The present invention also provides a screening method for a superconducting magnetic separation device for magnetic lithium mica rough ore. When the superconducting magnetic separation treatment is performed on the magnetic lithium mica rough ore, the ore is fed into the ore inlet of the water washing tank, and water is supplied at the same time. The ore is fed into the water washing tank, and the separation drum rotates. The superconducting D-shaped coil inside the separation drum provides the separation drum with a superconducting magnetic separation function. The separation drum and the magnetic material in the ore mixture are subjected to magnetic adsorption treatment. During the rotation of the separation drum, the magnetic material magnetically adsorbed on its surface rotates with the separation drum, and the separation is performed. When the magnetic material on the surface of the drum moves to the outside of the washing tank, the flushing water pipe flushes the magnetic material on the surface of the sorting drum, and the water washes the magnetic material off the surface of the sorting drum and brings the magnetic material into the concentrate bucket; when the sorting drum performs superconducting magnetic separation on the ore, the toggle mechanism toggle the ore mixture inside the washing tank, so that the ore mixture inside the washing tank is continuously toggled and dispersed during the magnetic separation process, which can effectively avoid stratification of the ore in the mixture and make the ore evenly contact with the surface of the sorting drum during the toggle and dispersion process.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0016] 1. The present invention provides a sorting drum, a water washing tank, a toggle mechanism, a second connecting shaft, a first connecting shaft, a first supporting sleeve, a first supporting rod and a first supporting bar. When the sorting drum performs superconducting magnetic separation on the ore, the toggle mechanism toggle the ore mixture in the water washing tank, so that the ore mixture in the water washing tank is continuously toggled and dispersed during the magnetic separation process, which can effectively avoid stratification of the ore in the mixture, make the ore contact with the surface of the sorting drum more sufficient, and thus effectively improve the magnetic separation effect on the ore, reduce the number of rotations of the sorting drum, shorten the working time of the sorting drum, and effectively improve the working efficiency of the equipment. Reduce equipment energy consumption, water flow and mineral materials impact the first support rod and the second support rod surface of the toggle mechanism, the first support bar blocks and guides the water flow and mineral materials on the outer side of the first support bar surface, and the second support bar blocks and guides the water flow and mineral materials on the outer side of the second support bar surface, which can effectively divert, guide and diffuse the water flow and mineral materials, so that the distribution uniformity of the mineral materials inside the washing tank is better; it can effectively extend the movement path of the water flow and mineral materials and the washing tank, so that the mineral materials can contact the surface of the sorting drum at different angles and directions, which can further enhance the contact uniformity between the mineral materials and the sorting drum.

[0017] 2. In the present invention, the servo motor drives a second gear to rotate, and the second gear drives the annular toothed belt to rotate. During the rotation of the annular toothed belt, the teeth rotate with the annular toothed belt, and the teeth mesh with the first gear to drive the first gear to rotate. Since the teeth on the inner wall of the annular toothed belt are arranged in several groups and are arranged at intervals, the teeth will not continuously rotate the first gear, but after driving the first gear to rotate a certain angle, the teeth at this position will be separated from the first gear, and the first gear will lose the meshing driving force of the teeth, so that the water flow and the mineral material are reversed. The swinging treatment can effectively avoid the stratification of the mineral material inside the washing tank, ensure the uniform contact treatment between the mineral material and the outer wall of the sorting cylinder, and improve the magnetic separation efficiency of the mineral material; the servo motor and the annular toothed belt are used to realize the intermittent active swing and elastic reset of the first support sleeve, ensure the active swing of the first support sleeve, the first support rod and the first support bar, and ensure that the toggle mechanism continuously performs the swing rod dispersion treatment on the water flow and the mineral material, which can effectively avoid the dynamic balance of the water flow and the mineral material after the impact of the toggle mechanism for a period of time, resulting in the inability of the toggle mechanism to perform continuous swing dispersion treatment on the water flow and the mineral material. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a front view of the present invention as a whole;

[0020] Figure 2 The present invention Figure 1 The enlarged schematic diagram of point A in the middle;

[0021] Figure 3 It is a front cross-sectional view of the present invention as a whole;

[0022] Figure 4 The present invention Figure 3 The enlarged schematic diagram of point B in the middle;

[0023] Figure 5 The present invention Figure 3 The enlarged schematic diagram of the center C;

[0024] Figure 6 is a side view of the connection between the first connecting shaft and the first supporting sleeve in the present invention;

[0025] In the figure: 1. sorting drum; 2. washing tank; 3. toggle mechanism; 4. ore inlet; 5. ore flushing water pipe; 6. concentrate bucket; 7. tailings outlet; 8. support shaft; 9. bearing; 10. nitrogen supply pipeline; 11. vacuum pipeline; 12. power supply wire; 13. first connecting shaft; 14. first supporting sleeve; 15. first supporting rod; 16. first supporting bar; 17. second connecting shaft; 18. sealing plate; 19. servo electric cylinder; 20. second supporting sleeve; 21. second supporting rod; 22. second supporting bar; 23. third connecting shaft; 24. opening; 25. first gear; 26. second gear; 27. annular toothed belt; 28. teeth; 29. ​​guide wheel. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0027] See also Figure 1-Figure 6The present invention provides a technical solution: a superconducting magnetic separation device and screening method for magnetic lithium mica coarse ore, comprising a separation drum 1 and a water washing tank 2, wherein the separation drum 1 is horizontally rotatably arranged at the top of the water washing tank 2, a superconducting D-shaped coil is arranged on one side of the separation drum 1, a toggle mechanism 3 is arranged on the outside of the separation drum 1 inside the water washing tank 2, an ore inlet 4 is arranged on the top of one side of the water washing tank 2, a flushing water pipe 5 is arranged on the outside of the separation drum 1 on the top of the other side of the water washing tank 2, a concentrate bucket 6 is arranged on the side away from the ore inlet 4 at the bottom of the water washing tank 2, and a tailings outlet 7 is arranged between the ore inlet 4 and the concentrate bucket 6 at the bottom of the water washing tank 2; the toggle mechanism 3 comprises a second A connecting shaft 17 and a plurality of first connecting shafts 13, the outer wall of the first connecting shaft 13 is sleeved with a plurality of rotatably connected first support sleeves 14, a first torsion spring is arranged between the first connecting shaft 13 and the first support sleeve 14, a first support rod 15 is arranged on the outer wall of the first support sleeve 14, a plurality of first support bars 16 are inclinedly arranged on the outer wall of the first support rod 15, a rotatably connected sealing plate 18 is arranged between the top of the inner wall of the tailings outlet 7 and the bottom of the water washing tank 2, a rotatably connected servo electric cylinder 19 is arranged on the outer wall of the sealing plate 18 away from the water washing tank 2, and the end of the servo electric cylinder 19 away from the sealing plate 18 is rotatably connected to the outer wall of the concentrate bucket 6, The second connecting shaft 17 is arranged on the inner wall of the sealing plate 18 away from the servo electric cylinder 19, the outer wall of the second connecting shaft 17 is sleeved with a plurality of second support sleeves 20 which are rotatably connected, a second torsion spring is arranged between the second connecting shaft 17 and the second support sleeve 20, a second support rod 21 is arranged on the outer wall of the second support sleeve 20, and a plurality of second support bars 22 are obliquely arranged on the outer wall of the second support rod 21, and the second connecting shaft 17 and the first connecting shaft 13 are arranged in parallel; the two first connecting shafts 13 at the two ends of the toggle mechanism 3 are fixedly connected to the washing tank 2, and the first connecting shaft 13 located between the two ends of the toggle mechanism 3 is rotatably connected to the washing tank 2 Then, the second connecting shaft 17 is fixedly connected to the sealing plate 18, and one end of the first connecting shaft 13 located between the two ends of the toggle mechanism 3 extends to the outside of the water washing tank 2 and is provided with a first gear 25, and the two ends of the toggle mechanism 3 are provided with a second gear 26 rotatably connected on the outside of the water washing tank 2, and the toggle mechanism 3 is provided with an annular toothed belt 27 matching the first gear 25 and the second gear 26 on the outside of the water washing tank 2, and the inner wall of the annular toothed belt 27 is provided with a plurality of groups of teeth 28 meshing with the first gear 25 and the second gear 26, and the outer wall of the water washing tank 2 is provided with a servo motor, and the output shaft of the servo motor is fixedly connected to the center of the outer wall of a second gear 26.

[0028] The distance between two adjacent first connecting shafts 13 is greater than twice the length of the first support rod 15, and the distance between two adjacent first connecting shafts 13 is less than three times the length of the first support rod 15. The distance between the first connecting shafts 13 and the length of the first support rod 15 are limited to ensure that the first support rod 15 swings normally without collision damage; the distance between the outer wall of the sorting drum 1 and the bottom of the inner wall of the washing tank 2 is greater than the length of the first support rod 15, and the distance between the outer wall of the sorting drum 1 and the bottom of the inner wall of the washing tank 2 is less than twice the length of the first support rod 15. The length of the first support rod 15 is limited, which can effectively avoid the first support rod 15 from directly colliding with the sorting drum 1 during the swinging process and at the same time ensure the first support rod 15 The effect of scattering processing on the mineral material.

[0029] Four groups of first support bars 16 are arranged on the outer wall of each first support rod 15, and the four groups of first support bars 16 are distributed in a cross shape. The first support bars 16 of the same group are arranged in parallel from top to bottom. The first support bars 16 on each first support rod 15 are guided and driven to support the surrounding areas, so that the driving range of the mineral material is larger, the dispersion treatment effect of the mineral material is better, and the contact between the mineral material and the sorting drum 1 is more uniform; four groups of second support bars 22 are arranged, and the four groups of second support bars 22 are distributed in a cross shape. The second support bars 22 of the same group are arranged in parallel from top to bottom. The second support bar 22 on the support rod 21 performs guiding and moving support processing on its four sides, which has a larger moving processing range for the mineral material, a better dispersion processing effect for the mineral material, and a more uniform contact between the mineral material and the sorting drum 1; the inclination direction of the first support bar 16 and the second support bar 22 is toward the sorting drum 1, and the inclination direction of the first support bar 16 and the second support bar 22 is set, so that the mineral material is guided by the first support bar 16 and the second support bar 22 and then thrown toward the sorting drum 1, and the mineral material is thrown toward the sorting drum 1 regardless of the reciprocating swing process of the first support bar 15 and the second support bar 21.

[0030] The outer wall of the sealing plate 18 is rotatably connected to one end of the servo electric cylinder 19 through a third connecting shaft 23. The outer wall of the tailings outlet 7 is provided with an opening 24 matching the servo electric cylinder 19 below the third connecting shaft 23. The third connecting shaft 23 rotationally supports one end of the sealing plate 18 to ensure the stability of the rotation of the sealing plate 18. The opening 24 provides movement space for the servo electric cylinder 19 to ensure that the servo electric cylinder 19 can drive the sealing plate 18 to rotate and ensure the opening and closing operation of the sealing plate 18. At the same time, after the sealing plate 18 is opened, the sealing plate 18 moves toward the opening 24 to block the opening 24, which can effectively prevent the tailings from leaking from the opening 24.

[0031] The spacing between two adjacent groups of teeth 28 is greater than the minimum distance between two adjacent first gears 25, and the spacing between two adjacent groups of teeth 28 is less than the maximum distance between two adjacent first gears 25. The spacing between two adjacent groups of teeth is limited to ensure that the teeth 28 on the inner wall of the annular toothed belt 27 can intermittently transmit the first gear 25 and the second gear 26, and at the same time ensure that the teeth 28 always maintain meshing transmission connection with the second gear 26 to prevent the annular toothed belt 27 from falling off, thereby ensuring the normal transmission of the annular toothed belt 27, thereby ensuring the normal rotation of the first gear 25; the outer wall of the washing tank 2 is provided with a plurality of rotatably connected guide wheels 29 above the annular toothed belt 27, the guide wheels 29 are distributed in an arc shape, the first connecting shaft 13 is distributed in an arc shape, and the arc distribution trajectory of the guide wheels 29 is parallel to the arc distribution trajectory of the first connecting shaft 13, the guide wheels 29 can perform rolling guidance on the top of the annular toothed belt 27, which can effectively ensure the movement stability of the annular toothed belt 27 and ensure that the annular toothed belt 27 performs arc rotation.

[0032] Support shafts 8 are provided at both ends of the outer wall of the sorting cylinder 1. The support shaft 8 is rotatably connected to the water washing tank 2 through bearings 9. The support shaft 8 supports both ends of the sorting cylinder 1, and the bearings 9 ensure the rotational support of the sorting cylinder 1 and the water washing tank 2; a nitrogen supply pipeline 10, a vacuum pipeline 11 and a power supply wire 12 are provided on the outer wall of the support shaft 8. The nitrogen supply pipeline 10, the vacuum pipeline 11 and the power supply wire 12 all extend to the inside of the sorting cylinder 1. The nitrogen supply pipeline 10 is used to pass a low-temperature medium into the inside of the sorting cylinder 1 to ensure a low-temperature environment inside the sorting cylinder 1, thereby providing a low-temperature environment for the superconducting magnet. The vacuum pipeline 11 provides a vacuum environment for the inside of the sorting cylinder 1, and the power supply wire 12 supplies power to the superconducting D-shaped coil.

[0033] Working principle of the present invention:

[0034] Refer to the instruction manual Figure 1-Figure 6The present invention provides a sorting drum 1, a washing tank 2, a toggle mechanism 3, a second connecting shaft 17, a first connecting shaft 13, a first supporting sleeve 14, a first supporting rod 15 and a first supporting bar 16. When the magnetic lithium mica coarse ore is subjected to superconducting magnetic separation, the ore is fed into the ore inlet 4 of the washing tank 2, and water is supplied at the same time. The ore is fed into the washing tank 2, and the sorting drum 1 rotates. The superconducting D-shaped coil inside the sorting drum 1 provides the sorting drum 1 with a superconducting magnetic separation function. The sorting drum 1 and the magnetic material in the ore mixture are subjected to magnetic adsorption treatment. During the rotating movement of the sorting drum 1, the magnetic material magnetically adsorbed on its surface rotates with the sorting drum 1, and the magnetic material on the surface of the sorting drum 1 moves to the washing tank 2. When the ore is outside the trough 2, the flushing water pipe 5 flushes the magnetic material on the surface of the separation drum 1, and the water washes the magnetic material off the surface of the separation drum 1 and enters the concentrate bucket 6 with the magnetic material; when the separation drum 1 performs superconducting magnetic separation on the ore, the toggle mechanism 3 toggle the ore mixture inside the washing tank 2, so that the ore mixture inside the washing tank 2 is continuously toggled and dispersed during the magnetic separation process, which can effectively avoid the stratification of the ore in the mixture, so that the ore and the surface of the separation drum 1 are more fully contacted, thereby effectively improving the magnetic separation effect of the ore, reducing the number of rotations of the separation drum 1, shortening the working time of the separation drum 1, and effectively improving the working efficiency of the equipment and reducing the energy consumption of the equipment;

[0035] When the toggle mechanism 3 is working, the water flow and the ore are sent from the ore inlet 4 into the washing tank 2, and the water flow and the ore impact the first support rod 15 and the second support rod 21 surface of the toggle mechanism 3. The first support bar 16 blocks and guides the water flow and the ore on the outer side of the first support rod 15 surface, and the second support bar 22 blocks and guides the water flow and the ore on the outer side of the second support rod 21 surface, which can effectively divert, guide and diffuse the water flow and the ore, so that the distribution uniformity of the ore in the washing tank 2 is better. ; The first connecting shaft 13 provides rotational support for the first support sleeve 14, the first support rod 15 moves with the first support sleeve 14, the second connecting shaft 17 provides rotational support for the second support sleeve 20, and the second support rod 21 moves with the second support sleeve 20; the first torsion spring provides elastic torsion support between the first connecting shaft 13 and the first support sleeve 14, and the second torsion spring provides elastic torsion support between the second connecting shaft 17 and the second support sleeve 20; when the water flow and the mineral material impact the surface of the first support bar 16 on the surface of the first support rod 15 The impact force drives the first support bar 16 and the first support rod 15 to swing in the direction of the water flow, the first support sleeve 14 swings along the first connecting shaft 13 in the direction of the water flow, the first torsion spring is compressed, and the first support bar 16 and the first support rod 15 swing and sprinkle the mineral material in the water flow during the swinging process, which can effectively avoid the stratification of the mineral material inside the washing tank 2, so that the mineral material is more fully in contact with the surface of the separation cylinder 1, and the magnetic separation effect of the mineral material is better. At the same time, after the mineral material outside the first support rod 15 and the first support bar 16 is sprinkled , the impact force on the surface of the first support rod 15 and the first support bar 16 becomes smaller, and the first torsion spring rebounds, so that the first support sleeve 14 swings in the opposite direction, thereby driving the first support rod 15 and the first support bar 16 to swing in the opposite direction. The first support rod 15 and the first support bar 16 drive the water flow and the mineral material to swing in the opposite direction, which can effectively extend the movement path of the water flow, the mineral material and the washing tank 2, so that the mineral material can contact the surface of the sorting drum 1 at different angles and directions, which can further enhance the contact uniformity between the mineral material and the sorting drum 1;

[0036] The second support rod 21 and the second support bar 22 perform a tossing process on the sealing plate 18 of the tailings outlet 7 for the water flow and the mineral material. When the water flow and the mineral material impact the surface of the second support bar 22 on the surface of the second support rod 21, the impact force drives the second support bar 22 and the second support rod 21 to swing in the direction of the water flow, and the second support sleeve 20 swings along the second connecting shaft 17 in the direction of the water flow. The second torsion spring is compressed, and the second support bar 22 and the second support rod 21 perform a swinging and scattering process on the mineral material in the water flow during the swinging process, which can effectively avoid the stratification of the mineral material inside the washing tank 2, so that the mineral material is more fully in contact with the surface of the separation drum 1, and the magnetic separation effect of the mineral material is better. At the same time, the second support After the mineral materials on the outside of the rod 21 and the second support bar 22 are scattered, the impact force on the surface of the second support rod 21 and the second support bar 22 becomes smaller, and the second torsion spring rebounds, so that the second support sleeve 20 swings in the opposite direction, thereby driving the second support rod 21 and the second support bar 22 to swing in the opposite direction. The second support rod 21 and the second support bar 22 drive the water flow and the mineral materials to swing in the opposite direction, which can effectively extend the movement path of the water flow, the mineral materials and the washing tank 2, so that the mineral materials can contact the surface of the separation drum 1 at different angles and directions, ensuring the normal operation of the water flow and the mineral materials at the tailings mouth. The contact uniformity between the mineral materials and the separation drum 1 can be further enhanced;

[0037] The servo motor drives a second gear 26 to rotate, and the second gear 26 drives the annular toothed belt 27 to rotate. The teeth 28 on the inner wall of the annular toothed belt 27 rotate along with the annular toothed belt 27. During the rotational movement, the teeth 28 mesh with the first gear 25 and the second gear 26. The second gear 26 performs rotational transmission support at both ends of the annular toothed belt 27 to ensure that the annular toothed belt 27 rotates stably. During the rotational movement of the annular toothed belt 27, the teeth 28 rotate along with the annular toothed belt 27, and the teeth 28 mesh with the first gear 25 to drive the first gear 25 to rotate. Since the teeth 28 on the inner wall of the annular toothed belt 27 are arranged in several groups and are arranged at intervals, the teeth 28 will not continuously rotate the first gear 25, but after driving the first gear 25 to rotate a certain angle, the teeth 28 at this location will be disengaged from the first gear 25, and the first gear 25 loses the meshing driving force of the teeth 28; when the first gear 25 rotates under the meshing drive of the teeth 28, the first gear 25 drives the first connecting shaft 13 to rotate, and the first connecting shaft 13 drives the first support sleeve 14 to swing through the first torsion spring, and the first support sleeve 14 drives the first support rod 15 and the first support bar 16 to swing During the swinging of the first support rod 15 and the first support bar 16, the water flow and the mineral material inside the washing tank 2 are moved and scattered. When the first gear 25 loses the meshing driving force of the teeth 28, the first torsion spring rebounds quickly to swing the first support sleeve 14 in the opposite direction. The first support rod 15 and the first support bar 16 swing and reset quickly, and the water flow and the mineral material are swung in the opposite direction, which can effectively avoid the stratification of the mineral material inside the washing tank 2, ensure the uniform contact between the mineral material and the outer wall of the separation cylinder 1, and improve the magnetic separation efficiency of the mineral material; after the first support sleeve 14 swings and resets, the teeth on the inner wall of the annular toothed belt 27 are The first gear 25 is contacted and meshed with the first gear 25 again to rotate and adjust the first gear 25, and the first support sleeve 14, the first support rod 15 and the first support bar 16 swing again; the servo motor and the annular toothed belt 27 are used to realize the intermittent active swing and elastic reset of the first support sleeve 14, to ensure the initiative of the swing of the first support sleeve 14, the first support rod 15 and the first support bar 16, to ensure that the toggle mechanism 3 continuously performs the swing rod dispersion treatment on the water flow and the mineral material, and can effectively avoid the dynamic balance of the water flow and the mineral material after the impact of the toggle mechanism 3 for a period of time, resulting in the toggle mechanism 3 being unable to perform the continuous swing dispersion treatment work on the water flow and the mineral material;

[0038] The second gear 26 is not connected to the first connecting shafts 13 at both ends of the toggle mechanism 3, so that the second gear 26 will not drive the first connecting shafts 13 at both ends of the toggle mechanism 3 to rotate, ensuring the normal rotation of the second gear 26, and while ensuring the rotation of the annular toothed belt 27, the first connecting shafts 13 at both ends of the toggle mechanism 3 will not be continuously rotated, ensuring the normal swing of the first connecting shafts 13, the first support sleeve 14, the first support rod 15 and the first support bar 16 at both ends of the toggle mechanism 3;

[0039] The extension and retraction of the servo electric cylinder 19 can drive the sealing plate 18 to rotate along the third connecting shaft 23. The displacement of the sealing plate 18 opens the passage between the tailings outlet 7 and the washing tank 2, and the water flow and mineral materials treated by magnetic separation are discharged from the tailings outlet 7. The operation is convenient and quick.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A superconducting magnetic separation device for magnetic lepidolite coarse ore, comprising a separation drum (1) and a washing tank (2), Features: The separation drum (1) is horizontally rotatable and arranged on the top of the water washing tank (2); a superconducting D-shaped coil is arranged on one side of the separation drum (1); a toggle mechanism (3) is arranged inside the water washing tank (2) on the outside of the separation drum (1); an ore inlet (4) is arranged on the top of one side of the water washing tank (2); a flushing water pipe (5) is arranged on the top of the other side of the water washing tank (2) on the outside of the separation drum (1); a concentrate bucket (6) is arranged on the side of the bottom of the water washing tank (2) away from the ore inlet (4); and a tailings outlet (7) is arranged on the bottom of the water washing tank (2) between the ore inlet (4) and the concentrate bucket (6).

2. A superconducting magnetic separation device for magnetic lithium mica coarse ore according to claim 1, Features: The toggle mechanism (3) comprises a second connecting shaft (17) and a plurality of first connecting shafts (13); the outer wall of the first connecting shaft (13) is sleeved with a plurality of rotatably connected first support sleeves (14); a first torsion spring is arranged between the first connecting shaft (13) and the first support sleeve (14); the outer wall of the first support sleeve (14) is provided with a first support rod (15); the outer wall of the first support rod (15) is obliquely provided with a plurality of first support bars (16); a rotatably connected sealing plate (18) is arranged between the top of the inner wall of the tailings opening (7) and the bottom of the water washing tank (2); a rotatably connected servo motor is arranged on the outer wall of the sealing plate (18) away from the water washing tank (2); An electric cylinder (19), wherein one end of the servo electric cylinder (19) is rotatably connected to the outer wall of the concentrate bucket (6) away from the sealing plate (18); the second connecting shaft (17) is arranged on the inner wall of the sealing plate (18) away from the servo electric cylinder (19); the outer wall of the second connecting shaft (17) is sleeved with a plurality of rotatably connected second support sleeves (20); a second torsion spring is arranged between the second connecting shaft (17) and the second support sleeve (20); the outer wall of the second support sleeve (20) is provided with a second support rod (21); the outer wall of the second support rod (21) is obliquely provided with a plurality of second support bars (22); the second connecting shaft (17) and the first connecting shaft (13) are arranged in parallel.

3. A superconducting magnetic separation device for magnetic lithium mica coarse ore according to claim 2, Features: The distance between two adjacent first connecting shafts (13) is greater than twice the length of the first support rod (15), and the distance between two adjacent first connecting shafts (13) is less than three times the length of the first support rod (15).

4. A superconducting magnetic separation device for magnetic lithium mica coarse ore according to claim 2, Features: The distance between the outer wall of the separation cylinder (1) and the bottom of the inner wall of the washing tank (2) is greater than the length of the first support rod (15), and the distance between the outer wall of the separation cylinder (1) and the bottom of the inner wall of the washing tank (2) is less than twice the length of the first support rod (15).

5. A superconducting magnetic separation device for magnetic lithium mica coarse ore according to claim 2, Features: Four groups of first support bars (16) are arranged on the outer wall of each first support rod (15), the four groups of first support bars (16) are arranged in a cross shape, and the first support bars (16) in the same group are arranged in parallel from top to bottom; four groups of second support bars (22) are arranged, the four groups of second support bars (22) are arranged in a cross shape, and the second support bars (22) in the same group are arranged in parallel from top to bottom, and the inclination direction of the first support bars (16) and the second support bars (22) is toward the sorting barrel (1).

6. A superconducting magnetic separation device for magnetic lithium mica coarse ore according to claim 2, Features: The outer wall of the sealing plate (18) is rotatably connected to one end of the servo electric cylinder (19) via a third connecting shaft (23), and the outer wall of the tailings outlet (7) is provided with an opening (24) matching the servo electric cylinder (19) below the third connecting shaft (23).

7. A superconducting magnetic separation device for magnetic lithium mica coarse ore according to claim 2, Features: Two first connecting shafts (13) located at both ends of the toggle mechanism (3) are fixedly connected to the water washing tank (2); the first connecting shaft (13) located between the two ends of the toggle mechanism (3) is rotatably connected to the water washing tank (2); the second connecting shaft (17) is fixedly connected to the sealing plate (18); one end of the first connecting shaft (13) located between the two ends of the toggle mechanism (3) extends to the outside of the water washing tank (2) and is provided with a first gear (25); both ends of the toggle mechanism (3) are provided with a second gear (26) rotatably connected to the outside of the water washing tank (2); the toggle mechanism (3) is provided with an annular toothed belt (27) matching both the first gear (25) and the second gear (26) on the outside of the water washing tank (2); the inner wall of the annular toothed belt (27) is provided with a plurality of groups of teeth (28) meshing with the first gear (25) and the second gear (26); the outer wall of the water washing tank (2) is provided with a servo motor; the output shaft of the servo motor is fixedly connected to the center of the outer wall of a second gear (26).

8. A superconducting magnetic separation device for magnetic lithium mica coarse ore according to claim 7, Features: The spacing between two adjacent groups of teeth (28) is greater than the minimum distance between two adjacent first gears (25), and the spacing between two adjacent groups of teeth (28) is less than the maximum distance between two adjacent first gears (25). The outer wall of the washing tank (2) is provided with a plurality of rotatably connected guide wheels (29) above the annular toothed belt (27). The guide wheels (29) are distributed in an arc shape, and the first connecting shaft (13) is distributed in an arc shape. The arc distribution trajectory of the guide wheels (29) is parallel to the arc distribution trajectory of the first connecting shaft (13).

9. A superconducting magnetic separation device for magnetic lepidolite coarse ore according to claim 1, Features: Support shafts (8) are provided at both ends of the outer wall of the separation barrel (1), and the support shaft (8) is rotatably connected to the water washing tank (2) through a bearing (9). A nitrogen supply pipeline (10), a vacuum pipeline (11) and a power supply wire (12) are provided on the outer wall of one of the support shafts (8), and the nitrogen supply pipeline (10), the vacuum pipeline (11) and the power supply wire (12) all extend into the interior of the separation barrel (1).

10. A screening method for a superconducting magnetic separation device for magnetic lepidolite coarse ore according to any one of claims 1 to 9, Features: When superconducting magnetic separation is performed on the coarse magnetic lithium mica ore, the ore is fed into the ore inlet (4) of the water washing tank (2), and water is supplied at the same time. The ore is fed into the water washing tank (2), and the separation drum (1) rotates. The superconducting D-shaped coil inside the separation drum (1) provides the separation drum (1) with a superconducting magnetic separation function. The separation drum (1) and the magnetic material in the ore mixture are subjected to magnetic adsorption treatment. During the rotation of the separation drum (1), the magnetic material magnetically adsorbed on its surface rotates with the separation drum (1), and the magnetic material on the surface of the separation drum (1) moves to the water washing tank (2). When the ore is outside the washing tank (2), the flushing water pipe 5 flushes the magnetic material on the surface of the separation cylinder (1), and the water washes the magnetic material off the surface of the separation cylinder (1) and simultaneously brings the magnetic material into the concentrate bucket 6; when the separation cylinder (1) performs superconducting magnetic separation on the ore, the toggle mechanism 3 toggle the ore mixture inside the washing tank (2), so that the ore mixture inside the washing tank (2) is continuously toggled and dispersed during the magnetic separation process, which can effectively avoid stratification of the ore in the mixture and make the ore uniformly contact with the surface of the separation cylinder (1) during the toggle and dispersion process.

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