CN109277188B - Rare earth purification device - Google Patents
Rare earth purification device Download PDFInfo
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- CN109277188B CN109277188B CN201811021349.8A CN201811021349A CN109277188B CN 109277188 B CN109277188 B CN 109277188B CN 201811021349 A CN201811021349 A CN 201811021349A CN 109277188 B CN109277188 B CN 109277188B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/16—Magnetic separation acting directly on the substance being separated with material carriers in the form of belts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/16—Magnetic separation acting directly on the substance being separated with material carriers in the form of belts
- B03C1/18—Magnetic separation acting directly on the substance being separated with material carriers in the form of belts with magnets moving during operation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/16—Magnetic separation acting directly on the substance being separated with material carriers in the form of belts
- B03C1/22—Magnetic separation acting directly on the substance being separated with material carriers in the form of belts with non-movable magnets
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Abstract
The invention belongs to the technical field of rare earth production, and particularly relates to a rare earth purification device which comprises a rack, wherein a motor and a feed hopper are arranged on the rack, the rare earth purification device also comprises a magnetic separation mechanism and a leakage detection magnetic separation mechanism, the feed hopper is also provided with a drying mechanism, the magnetic separation mechanism is positioned on the right side of the drying mechanism, the magnetic separation mechanism comprises a roller, a conveyor belt, a magnetic separation plate, a driven roller, scraping teeth and a motor I, the number of the rollers is two, the two rollers are arranged up and down, the upper roller is positioned on the right side of the lower roller, and the conveyor; the magnetic separation plate is arranged on the conveyor belt and used for screening the magnetic rare earth particles, realizing the separation of concentrate and tailings and purifying; the surface of the driven roller is provided with scraping teeth which are meshed with the magnetic separation plate on the conveyor belt, and the scraping teeth are used for scraping off the rare earth particles adsorbed on the surface of the magnetic separation plate. The invention can realize the full magnetic separation of the magnetic rare earth particles and improve the utilization rate of rare earth resources.
Description
Technical Field
The invention belongs to the technical field of rare earth production, and particularly relates to a rare earth purification device.
Background
The lanthanoid elements, together with scandium and yttrium of the same family, are called rare earth elements and play a very important role in the development of the national economy. The high-purity rare earth generally refers to rare earth metal or compound with the purity higher than 99.99 percent, and is mainly applied to functional materials such as light, electricity, magnetism and the like. With the development of advanced scientific technologies such as electronics, optics and optoelectronics, the demand of high-purity rare earth metal materials is increasing day by day. In order to develop new properties of rare earth metals and their compounds, higher purity requirements are put on the raw materials, requiring impurities in the order of μ g/g or even lower. One of the key factors affecting the performance of functional materials is the purity of rare earth metals and their compounds, e.g., when the oxygen content in magnetostrictive materials exceeds 1.0X 10-6, the stretching properties are almost lost. The rare earth purification processing technology comprises a vacuum distillation method, a vacuum melting method, a molten salt extraction method and the like, but the magnetic separator is the widest range, and is suitable for separating and extracting substances with magnetic differences.
Patent documents: a rare earth purification device, application number: 2014204972084
Among the above-mentioned patent literature, at first dry the tombarthite ore, magnetic separation is carried out to rethread two-stage magnetic separation mechanism, utilizes the magnetic separation mechanism that leaks hunting to carry out the magnetic separation to the tailing at last, has improved the utilization ratio of resource, but in this patent literature, magnetic separation mechanism adopts conventional magnetic separation mode to make the effect of magnetic separation unobvious, causes easily that to contain a large amount of magnetism tombarthite particles in the tailing, has increased the degree of difficulty that the magnetic separation was leaked hunting to the tailing, is unfavorable for realizing the make full use of tombarthi.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides the rare earth purification device which is mainly used for realizing sufficient magnetic separation in the rare earth purification process. According to the invention, the two-stage magnetic separation mechanism is adopted to magnetically separate the magnetic rare earth particles in the rare earth ore in a manner that the conveyor belt drives the magnetic separation plate, and then the magnetic rare earth particles on the surface of the magnetic separation plate are scraped by the meshing motion of the magnetic separation plate and the scraping teeth, so that the magnetic separation of the magnetic rare earth particles is fully realized, and the utilization rate of rare earth resources is improved.
The technical scheme adopted by the invention for solving the technical problems is as follows: the rare earth purification device comprises a frame, a motor and a feed hopper are arranged on the frame, a magnetic separation mechanism and a leakage detection magnetic separation mechanism are further included, the feed hopper is also provided with a drying mechanism, the outer cylinder of the drying mechanism is cylindrical hollow, the center of the cylinder is provided with a rotating shaft, three groups of heating disks are uniformly distributed on the upper part and the lower part of the rotating shaft, the drying mechanism is used for heating and stirring rare earth ores, the magnetic separation mechanism is positioned on the right side of the drying mechanism, the number of the magnetic separation mechanisms is two, the magnetic separation mechanisms are respectively a first-stage magnetic separation mechanism and a second-stage magnetic separation mechanism, the second-stage magnetic separation mechanism is positioned on the right side of the first-stage magnetic separation mechanism, the magnetic separation mechanism comprises a roller, a conveyor belt, a magnetic separation plate, a driven roller, scraping teeth and a first motor, the number of the rollers is two, the two rollers are arranged up and down, the upper roller is arranged on the right side of the lower roller, and a conveyor belt is arranged between the two rollers; the magnetic separation plate is arranged on the conveyor belt, is made of a magnetic material and is of a tooth-shaped structure, and is used for screening magnetic rare earth particles, realizing separation of concentrate and tailings and purifying; the driven roller is positioned on the right side of the magnetic separation mechanism, scraping teeth are arranged on the surface of the driven roller and meshed with the magnetic separation plate on the conveyor belt, and the scraping teeth are used for scraping off rare earth particles adsorbed on the surface of the magnetic separation plate; the first motor is arranged on the outer wall of the rack, and an output shaft of the first motor is connected with the roller; wherein the content of the first and second substances,
a first-stage tailing outlet is arranged below the first-stage magnetic separation mechanism, and a first-stage concentrate outlet is arranged below the driven roller of the first-stage magnetic separation mechanism; the second-level magnetic separation mechanism is provided with a second-level tailing outlet below, the second-level magnetic separation mechanism is provided with a second-level concentrate outlet below the driven roller, the first-level tailing outlet is communicated with the second-level tailing outlet, the first-level concentrate outlet is connected with the second-level magnetic separation mechanism, and the second-level concentrate outlet extends to the outside of the rack. When the magnetic separation device works, rare earth ore is poured into the drying mechanism, the rare earth ore moves to the position below the first-stage magnetic separation mechanism under the action of gravity after being dried and dispersed in the drying mechanism, the first motor drives the roller to rotate so as to drive the conveyor belt to move, the conveyor belt drives the magnetic separation plate to move, the rare earth ore below is stirred, magnetic rare earth particles in the rare earth ore are adsorbed on the magnetic separation plate, the magnetic rare earth particles adsorbed on the magnetic separation plate continue to move upwards along with the magnetic separation plate, tailings enter the first-stage tailing outlet, when the magnetic separation plate carrying the magnetic rare earth particles moves to be contacted and meshed with the driven roller, the scraping teeth scrape the magnetic rare earth particles on the magnetic separation plate, the magnetic rare earth particles fall into the first-stage concentrate outlet under the action of gravity, the magnetic rare earth particles continue to move to the position below the second-stage magnetic separation mechanism under the action of gravity, and the second-stage magnetic separation mechanism realizes the secondary purification of, the ore concentrate flows out through the second grade ore concentrate outlet, the purification of the rare earth ore is realized through the two-stage magnetic separation mechanism, the tailings enter the second grade tailing outlet, the tailings entering the first grade tailing outlet and the tailings in the second grade tailing outlet finally fall into the leakage detection magnetic separation mechanism, and the tailings are purified again.
The surface of the magnetic separation plate is provided with a leakage hole; the leak hole quantity is two at least, and the leak hole position on the adjacent magnetic separation board does not coincide, and the leak hole is arranged in stirring, breaing up the tombarthite ore deposit when the magnetic separation board moves along with the conveyer belt, realizes the abundant absorption of magnetism tombarthite particle on the magnetic separation board in the tombarthite ore deposit simultaneously. The design of small opening has increased the area of contact of magnetism tombarthite granule in the tombarthite ore deposit with the magnetic separation board on the one hand, has improved the adsorption efficiency of magnetic separation board, and on the other hand tombarthite ore deposit can flow through in the small opening to avoided not being pushed the tailing export along with the rapid movement of magnetic separation board by the magnetism tombarthite granule of timely absorption in the tombarthite ore deposit, caused the waste, be favorable to realizing that the magnetic separation board is to the abundant absorption of magnetism tombarthite granule, improve the purification rate.
The magnetic separation board top communicates with each other to the inside spout that is provided with of magnetic separation board, the leak hole on spout and the magnetic separation board, is provided with the push rod in the spout, is provided with the scraper blade in the leak hole, and the scraper blade links firmly with the push rod mutually, and push rod and scraper blade are the rubber material, and the scraper blade is used for striking off the magnetism tombarthite granule in the leak hole, and the one end that the push rod is located the magnetic separation board outside is fixed with the clamp plate, is provided with the elasticity gasbag between clamp plate and the magnetic separation board, and the elasticity gasbag. When the magnetic separation plate moves to be in meshing contact with the scraping teeth, the scraping teeth extrude the pressing plate to enable the push rod to push the scraper blade to move along the leakage hole, so that magnetic rare earth particles adsorbed in the leakage hole are scraped off, the leakage hole is prevented from being blocked, and the effectiveness of the function of the leakage hole is ensured.
Scrape the tooth top and to scraping the inside recess that is provided with of tooth, scrape and be provided with ladder type groove on the lateral wall about the tooth, the bottom and the recess in ladder type groove communicate with each other, scrape the recess of tooth and be provided with the clearance pole, clearance board middle part articulates in scraping the recess of tooth, the one end that the clearance board is located the recess articulates there is fly leaf one, scrape the ladder type inslot of tooth and be provided with fly leaf two, fly leaf one and fly leaf two are passed through spring one and are realized connecting, fly leaf two is located the one end of scraping the tooth outside and is provided with the layering, the layering can move the ladder type inslot of scraping the tooth. When the scraping teeth are meshed with the magnetic separation plate, the pressing strips on one side of the scraping teeth are firstly extruded and move along the surface of the magnetic separation plate, and on one hand, the pressing strips are always in contact with the magnetic separation plate, so that the magnetic rare earth particles on the surface of the magnetic separation plate can be better scraped off; on the other hand, the pressing strip pushes the cleaning rod to swing when being extruded, the pressing strip scrapes off the magnetic rare earth particles in the partial area of the root of the magnetic separation plate, which is not occupied by the scraping teeth, and when the scraping teeth and the magnetic separation plate continue to rotate, the pressing strip on the other side of the scraping teeth is in contact with the magnetic separation plate, so that the magnetic rare earth particles in the other partial area of the magnetic separation plate are scraped off, and the complete scraping of the magnetic rare earth particles on the surface of the magnetic separation plate is ensured.
The leakage detection magnetic separation mechanism is arranged below the second-stage tailing outlet and comprises a transmission shaft, a conveying belt, a first electromagnet, a second electromagnet, a supporting rod, a second spring and a second motor; the number of the transmission shafts is two, the transmission shafts are arranged in a left-high-right-low mode, a conveying belt is arranged between the two transmission shafts, a final tailing collecting tank is arranged below the transmission shaft on the left side, a motor II is arranged on the rack, and an output shaft of the motor II is connected with the transmission shafts; the electromagnet I is positioned between the conveying belts and is fixed on the front wall and the rear wall of the rack; the number of the second electromagnets is at least two, the second electromagnets are positioned below the conveying belt and are obliquely arranged, the second electromagnets are fixed at the top of the supporting rod, and the magnetism of the second electromagnets is greater than that of the first electromagnets; the lower end of the supporting rod is connected with the bottom of the rack through a second spring. The tailings entering the first-stage tailing outlet and the second-stage tailing outlet finally fall onto a conveying belt of a leakage-checking magnetic separation mechanism, a motor II drives a transmission shaft to rotate anticlockwise, residual magnetic rare earth particles in the tailings are adsorbed onto the conveying belt due to the magnetic force of an electromagnet I, when the conveying belt carries the tailings to move to the position below the transmission shaft, the tailings fall into a final tailing collecting tank below the transmission shaft, the magnetic rare earth particles continue to move along with the conveying belt due to the adsorption onto the conveying belt, when the magnetic rare earth particles move to the position above the electromagnet II, the magnetic rare earth particles fall off the conveying belt due to the fact that the attraction of the electromagnet II on the magnetic rare earth particles is larger than the attraction of the electromagnet on the magnetic rare earth particles, convenience is provided for subsequent collection, when the magnetic rare earth particles fall onto the electromagnet II, a spring II drives the electromagnet II to shake up and down due to the, the waste of magnetic rare earth particles is avoided.
And the conveying belt is provided with a material pushing plate, and the inclined direction of the material pushing plate is the same as that of the conveying belt. The existence of scraping wings makes the tailing that falls into the conveyer belt can be carried away rapidly along with the motion of conveyer belt, has avoided the tailing to pile up on the conveyer belt to make the tailing can tile on the conveyer belt, be favorable to the screening of magnetism rare earth particle in the tailing.
The invention has the following beneficial effects:
1. according to the rare earth purification device, the two-stage magnetic separation mechanism is adopted to magnetically separate the magnetic rare earth particles in the rare earth ore in a mode that the conveyor belt drives the magnetic separation plate, and then the magnetic rare earth particles on the surface of the magnetic separation plate are scraped through the meshing motion of the magnetic separation plate and the scraping teeth, so that the magnetic separation of the magnetic rare earth particles is fully realized, and the utilization rate of rare earth resources is improved.
2. According to the rare earth purification device, the leakage detection and magnetic separation mechanism is adopted, electromagnets are respectively arranged between the conveyer belts and below the conveyer belts, and the magnetic rare earth particles move along with the conveyer belts and fall off from the conveyer belts when the conveyer belts move to the lower part by utilizing the difference of the electromagnetism and the ferromagnetism, so that the leakage detection and magnetic separation effect is improved, and the labor intensity of workers is reduced.
3. According to the rare earth purification device, when the magnetic separation plate is in contact with the scraping teeth, the pressing strip is extruded, so that the cleaning rod is pushed to scrape magnetic rare earth particles at the root part of the magnetic separation plate, and the push rod pushes the scraper to move in the leakage hole to scrape the magnetic rare earth particles in the leakage hole, so that the magnetic rare earth particles on the surface of the magnetic separation plate are fully scraped, and the magnetic separation effect is improved.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1 of the present invention;
FIG. 3 is an enlarged view of a portion of the invention at B in FIG. 1;
FIG. 4 is an enlarged view of a portion of the invention at C in FIG. 3;
in the figure: the device comprises a frame 1, a feed hopper 2, a magnetic separation mechanism 3, a leakage detection magnetic separation mechanism 4, a roller 31, a conveyor belt 32, a magnetic separation plate 33, a driven roller 34, scraping teeth 35, a first-stage tailing outlet 11, a first-stage concentrate outlet 12, a second-stage tailing outlet 13, a second-stage concentrate outlet 14, a leakage hole 331, a push rod 51, a scraping plate 52, a pressing plate 53, an elastic air bag 54, a groove 351, a cleaning rod 61, a first movable plate 62, a second movable plate 63, a pressing strip 64, a transmission shaft 41, a conveyor belt 42, a first electromagnet 43, a second electromagnet 44, a support rod 45, a material pushing plate 421 and a final tailing collecting tank.
Detailed Description
A rare earth purification apparatus according to an embodiment of the present invention will be described below with reference to fig. 1 to 4.
As shown in figures 1 and 3, the rare earth purification device comprises a frame 1, wherein a motor and a feed hopper 2 are arranged on the frame 1, the rare earth purification device also comprises a magnetic separation mechanism 3 and a leakage detection magnetic separation mechanism 4, the feed hopper 2 is also provided with a drying mechanism, an outer cylinder of the drying mechanism is cylindrical hollow, a rotating shaft is arranged at the center of the cylinder, three groups of heating discs are uniformly distributed on the rotating shaft from top to bottom, the drying mechanism is used for heating and stirring rare earth ores, the magnetic separation mechanism 3 is positioned on the right side of the drying mechanism, the number of the magnetic separation mechanisms 3 is two, the magnetic separation mechanisms are respectively a first-stage magnetic separation mechanism 3 and a second-stage magnetic separation mechanism 3, the second-stage magnetic separation mechanism 3 is positioned on the right side of the first-stage magnetic separation mechanism 3, the magnetic separation mechanism 3 comprises a roller 31, a conveyor belt 32, a magnetic separation plate 33, a driven roller 34, a scraping tooth, the upper roller 31 is arranged at the right side of the lower roller 31, and a conveyor belt 32 is arranged between the two rollers 31; the magnetic separation plate 33 is arranged on the conveyor belt 32, the magnetic separation plate 33 is made of magnetic materials, the magnetic separation plate 33 is of a tooth-shaped structure, and the magnetic separation plate 33 is used for screening magnetic rare earth particles, realizing separation of concentrate and tailings and purifying; the driven roller 34 is positioned at the right side of the magnetic separation mechanism 3, scraping teeth 35 are arranged on the surface of the driven roller 34, the scraping teeth 35 are meshed with the magnetic separation plate 33 on the conveyor belt 32, and the scraping teeth 35 are used for scraping off rare earth particles adsorbed on the surface of the magnetic separation plate 33; the first motor is arranged on the outer wall of the frame 1, and an output shaft of the first motor is connected with the roller 31; wherein the content of the first and second substances,
a first-stage tailing outlet 11 is arranged below the first-stage magnetic separation mechanism 3, and a first-stage concentrate outlet 12 is arranged below the driven roller 34 of the first-stage magnetic separation mechanism 3; second grade magnetic separation mechanism 3 below is equipped with second grade tailing export 13, and second grade magnetic separation mechanism 3 is equipped with second grade concentrate export 14 in the below of driven roller 34, and first grade tailing export 11 and second grade tailing export 13 communicate each other, and first grade concentrate export 12 is connected second grade magnetic separation mechanism 3, and second grade concentrate export 14 extends to the frame 1 outside. When the magnetic separation device works, rare earth ore is poured into the drying mechanism, the rare earth ore moves to the lower part of the first-stage magnetic separation mechanism 3 under the action of gravity after being dried and dispersed in the drying mechanism, the first motor drives the roller 31 to rotate so as to drive the conveyor belt 32 to move, the conveyor belt 32 drives the magnetic separation plate 33 to move, the rare earth ore below is stirred, magnetic rare earth particles in the rare earth ore are adsorbed on the magnetic separation plate 33, the magnetic rare earth particles adsorbed on the magnetic separation plate 33 continue to move upwards along with the magnetic separation plate 33, tailings enter the first-stage tailing outlet 11, when the magnetic separation plate 33 carrying the magnetic rare earth particles moves to be contacted and meshed with the driven roller 34, the scraping teeth 35 scrape the magnetic rare earth particles on the magnetic separation plate 33, the magnetic rare earth particles fall into the first-stage concentrate outlet 12 under the action of gravity, the magnetic rare earth particles continue to move to the lower part of the second-stage, the second-stage magnetic separation mechanism 3 realizes the secondary purification of magnetic rare earth particles in the same way as the first-stage magnetic separation mechanism 3, concentrate flows out through a second-stage concentrate outlet 14, the purification of rare earth ore is realized through the two-stage magnetic separation mechanism 3, tailings enter a second-stage tailing outlet 13, and the tailings entering the first-stage tailing outlet 11 and the second-stage tailing outlet 13 finally fall into the leakage detection magnetic separation mechanism 4 to realize the secondary purification of the tailings.
As shown in fig. 2, the surface of the magnetic separation plate 33 is provided with a leakage hole 331; the quantity of leak 331 is two at least, and the leak 331 position on the adjacent magnetic separation board 33 does not coincide, and the leak 331 is used for stirring, breaing up the tombarthite ore when the magnetic separation board 33 moves along with conveyer belt 32, realizes the abundant absorption of magnetic rare earth granule on the magnetic separation board 33 in the tombarthite ore simultaneously. The design of small opening 331 has increased the area of contact of magnetism rare earth granule in the rare earth ore with magnetic separation board 33 on the one hand, improved magnetic separation board 33's adsorption efficiency, on the other hand rare earth ore can flow through from small opening 331, thereby avoided in the rare earth ore not being pushed the tailing export by the magnetic rare earth granule of timely absorption along with magnetic separation board 33's rapid movement, cause the waste, be favorable to realizing that magnetic separation board 33 is to the abundant absorption of magnetism rare earth granule, improve the purification rate.
As shown in fig. 2, a chute is arranged at the top end of the magnetic separation plate 33 towards the inside of the magnetic separation plate 33, the chute is communicated with a leak 331 on the magnetic separation plate 33, a push rod 51 is arranged in the chute, a scraper 52 is arranged in the leak 331, the scraper 52 is fixedly connected with the push rod 51, the push rod 51 and the scraper 52 are both made of rubber, the scraper 52 is used for scraping magnetic rare earth particles in the leak 331, a pressing plate 53 is fixed at one end of the push rod 51, which is located at the outer side of the magnetic separation plate 33, an elastic air bag 54 is arranged between the pressing plate 53 and the magnetic separation plate 33, the elastic air bag 54 is of an annular structure. When the magnetic separation plate 33 moves to be in meshing contact with the scraping teeth 35, the scraping teeth 35 extrude the pressing plate 53 to enable the push rod 51 to push the scraper blade 52 to move along the leakage hole 331, so that the magnetic rare earth particles adsorbed in the leakage hole 331 are scraped, the blockage of the leakage hole 331 is avoided, and the functional effectiveness of the leakage hole 331 is ensured.
As shown in fig. 4, scrape tooth 35 top to scraping tooth 35 inside and be provided with recess 351, scrape and be provided with the ladder type groove on the lateral wall about tooth 35, the bottom in ladder type groove communicates with each other with recess 351, be provided with clearance pole 61 in the recess 351 of tooth 35, the clearance board middle part articulates in the recess 351 of scraping tooth 35, the one end that the clearance board is located recess 351 articulates there is a fly leaf one 62, scrape the ladder type inslot of tooth 35 and be provided with fly leaf two 63, fly leaf one 62 and fly leaf two 63 realize connecting through spring one, the one end that fly leaf two 63 is located the tooth 35 outside of scraping is provided with layering 64, layering 64 can move the ladder type inslot of scraping tooth 35. When the scraping teeth 35 are meshed with the magnetic separation plate 33, the pressing strips 64 on one side of the scraping teeth 35 are firstly extruded and move along the surface of the magnetic separation plate 33, and on one hand, the magnetic rare earth particles on the surface of the magnetic separation plate 33 can be better scraped off due to the fact that the pressing strips 64 are always in contact with the magnetic separation plate 33; on the other hand, when the pressing strip 64 is squeezed, the cleaning rod 61 is pushed to swing, the pressing strip 64 scrapes off the magnetic rare earth particles in the partial area of the root of the magnetic separation plate 33 which is not occupied by the scraping teeth 35, and when the scraping teeth 35 and the magnetic separation plate 33 continue to rotate, the pressing strip 64 on the other side of the scraping teeth 35 is in contact with the magnetic separation plate 33, so that the magnetic rare earth particles in the other partial area of the magnetic separation plate 33 are scraped off, and the magnetic rare earth particles on the surface of the magnetic separation plate 33 are completely scraped off.
As shown in fig. 1, the leakage detection magnetic separation mechanism 4 is arranged below the second-stage tailing outlet 13, and the leakage detection magnetic separation mechanism 4 comprises a transmission shaft 41, a conveying belt 42, a first electromagnet 43, a second electromagnet 44, a supporting rod 45, a second spring and a second motor; the number of the transmission shafts 41 is two, the transmission shafts 41 are arranged in a left-high-right-low mode, a conveying belt 42 is arranged between the two transmission shafts 41, a final tailing collecting tank 7 is arranged below the left transmission shaft 41, a second motor is arranged on the rack 1, and an output shaft of the second motor is connected with the transmission shafts 41; the electromagnet I43 is positioned between the conveyer belts 42, and the electromagnet I43 is fixed on the front wall and the rear wall of the rack 1; the number of the second electromagnets 44 is at least two, the second electromagnets 44 are positioned below the conveying belt 42, the second electromagnets 44 are obliquely arranged, the second electromagnets 44 are fixed on the top of the supporting rod 45, and the magnetism of the second electromagnets 44 is greater than that of the first electromagnets 43; the lower end of the supporting rod 45 is connected with the bottom of the rack 1 through a second spring. The tailings entering the first-stage tailing outlet 11 and the second-stage tailing outlet 13 finally fall onto a conveying belt 42 of a leakage-checking magnetic separation mechanism 4, a motor II drives a transmission shaft 41 to rotate anticlockwise, residual magnetic rare earth particles in the tailings are adsorbed on the conveying belt 42 due to the magnetic force of an electromagnet I43, when the conveying belt 42 carries the tailings to move to the lower part of the transmission shaft 41, the tailings fall into a final tailing collecting tank 7 below, the magnetic rare earth particles continue to move along with the conveying belt 42 due to the adsorption on the conveying belt 42, when the magnetic rare earth particles move to the upper part of an electromagnet II 44, the magnetic rare earth particles fall off the conveying belt 42 due to the fact that the attraction of the electromagnet II 44 to the magnetic rare earth particles is larger than the attraction of the electromagnet I43 to the magnetic rare earth particles, convenience is provided for subsequent collection, when the magnetic rare earth particles fall onto the electromagnet II 44, the spring II drives the electromagnet, thereby shaking off the magnetic rare earth particles on the second electromagnet 44 and avoiding the waste of the magnetic rare earth particles.
As shown in fig. 1, the conveyer belt 42 is provided with a material pushing plate 421, and the material pushing plate 421 has the same inclination direction as the conveyer belt 42. The existence of the material pushing plate 421 enables the tailings falling into the conveying belt 42 to be rapidly conveyed away along with the movement of the conveying belt 42, so that the accumulation of the tailings on the conveying belt 42 is avoided, the tailings can be flatly laid on the conveying belt 42, and the screening of the magnetic rare earth particles in the tailings is facilitated.
The specific process is as follows:
when the magnetic separation device works, rare earth ore is poured into the drying mechanism, the rare earth ore moves to the lower part of the first-stage magnetic separation mechanism 3 under the action of gravity after being dried and dispersed in the drying mechanism, the first motor drives the roller 31 to rotate so as to drive the conveyor belt 32 to move, the conveyor belt 32 drives the magnetic separation plate 33 to move, the rare earth ore below is stirred, magnetic rare earth particles in the rare earth ore are adsorbed on the magnetic separation plate 33, the magnetic rare earth particles adsorbed on the magnetic separation plate 33 continue to move upwards along with the magnetic separation plate 33, tailings enter the first-stage tailing outlet 11, when the magnetic separation plate 33 carrying the magnetic rare earth particles moves to be contacted and meshed with the driven roller 34, the scraping teeth 35 scrape the magnetic rare earth particles on the magnetic separation plate 33, the magnetic rare earth particles fall into the first-stage concentrate outlet 12 under the action of gravity, the magnetic rare earth particles continue to move to the lower part of the second-stage, the second-stage magnetic separation mechanism 3 realizes the secondary purification of magnetic rare earth particles in the same way as the first-stage magnetic separation mechanism 3, concentrate flows out through a second-stage concentrate outlet 14, the purification of rare earth ore is realized through the two-stage magnetic separation mechanism 3, tailings enter a second-stage tailing outlet 13, and the tailings entering the first-stage tailing outlet 11 and the second-stage tailing outlet 13 finally fall into the leakage detection magnetic separation mechanism 4 to realize the secondary purification of the tailings.
The design of small opening 331 has increased the area of contact of magnetism rare earth granule in the rare earth ore with magnetic separation board 33 on the one hand, improved magnetic separation board 33's adsorption efficiency, on the other hand rare earth ore can flow through from small opening 331, thereby avoided in the rare earth ore not being pushed the tailing export by the magnetic rare earth granule of timely absorption along with magnetic separation board 33's rapid movement, cause the waste, be favorable to realizing that magnetic separation board 33 is to the abundant absorption of magnetism rare earth granule, improve the purification rate. When the magnetic separation plate 33 moves to be in meshing contact with the scraping teeth 35, the scraping teeth 35 extrude the pressing plate 53 to enable the push rod 51 to push the scraper blade 52 to move along the leakage hole 331, so that the magnetic rare earth particles adsorbed in the leakage hole 331 are scraped, the blockage of the leakage hole 331 is avoided, and the functional effectiveness of the leakage hole 331 is ensured.
When the scraping teeth 35 are meshed with the magnetic separation plate 33, the pressing strips 64 on one side of the scraping teeth 35 are firstly extruded and move along the surface of the magnetic separation plate 33, and on one hand, the magnetic rare earth particles on the surface of the magnetic separation plate 33 can be better scraped off due to the fact that the pressing strips 64 are always in contact with the magnetic separation plate 33; on the other hand, when the pressing strip 64 is squeezed, the cleaning rod 61 is pushed to swing, the pressing strip 64 scrapes off the magnetic rare earth particles in the partial area of the root of the magnetic separation plate 33 which is not occupied by the scraping teeth 35, and when the scraping teeth 35 and the magnetic separation plate 33 continue to rotate, the pressing strip 64 on the other side of the scraping teeth 35 is in contact with the magnetic separation plate 33, so that the magnetic rare earth particles in the other partial area of the magnetic separation plate 33 are scraped off, and the magnetic rare earth particles on the surface of the magnetic separation plate 33 are completely scraped off.
The tailings entering the first-stage tailing outlet 11 and the second-stage tailing outlet 13 finally fall onto a conveying belt 42 of a leakage-checking magnetic separation mechanism 4, a motor II drives a transmission shaft 41 to rotate anticlockwise, residual magnetic rare earth particles in the tailings are adsorbed on the conveying belt 42 due to the magnetic force of an electromagnet I43, when the conveying belt 42 carries the tailings to move to the lower part of the transmission shaft 41, the tailings fall into a final tailing collecting tank 7 below, the magnetic rare earth particles continue to move along with the conveying belt 42 due to the adsorption on the conveying belt 42, when the magnetic rare earth particles move to the upper part of an electromagnet II 44, the magnetic rare earth particles fall off the conveying belt 42 due to the fact that the attraction of the electromagnet II 44 to the magnetic rare earth particles is larger than the attraction of the electromagnet I43 to the magnetic rare earth particles, convenience is provided for subsequent collection, when the magnetic rare earth particles fall onto the electromagnet II 44, the spring II drives the electromagnet, thereby shaking off the magnetic rare earth particles on the second electromagnet 44 and avoiding the waste of the magnetic rare earth particles.
When the magnetic separation plate 33 moves to be in meshing contact with the scraping teeth 35, the scraping teeth 35 extrude the pressing plate 53 to enable the push rod 51 to push the scraper blade 52 to move along the leakage hole 331, so that the magnetic rare earth particles adsorbed in the leakage hole 331 are scraped, the blockage of the leakage hole 331 is avoided, and the functional effectiveness of the leakage hole 331 is ensured.
While one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the present invention.
Industrial applicability
According to the rare earth purification device, the magnetic rare earth particles in the rare earth ore are magnetically separated in a mode that the magnetic separation plate is driven by the conveyor belt in the two-stage magnetic separation mechanism, and then the magnetic rare earth particles on the surface of the magnetic separation plate are scraped by the meshing motion of the magnetic separation plate and the scraping teeth, so that the magnetic separation of the magnetic rare earth particles is fully realized, the utilization rate of rare earth resources is improved, and the rare earth purification device is useful in the field of rare earth production.
Claims (3)
1. The utility model provides a tombarthite purification device, includes frame (1), is equipped with motor and feeder hopper (2) in frame (1), still includes magnetic separation mechanism (3) and leak hunting magnetic separation mechanism (4), feeder hopper (2) still are equipped with dry mechanism, dry mechanism's urceolus is cylindrical hollow form, and cylinder central point puts and is equipped with the revolving axle, and evenly distributed has three group's heating disc about the revolving axle, and dry mechanism is used for heating and stirs scattered, its characterized in that to the tombarthite ore deposit: the magnetic separation mechanism (3) is located on the right side of the drying mechanism, the magnetic separation mechanisms (3) are two in number and respectively comprise a first-stage magnetic separation mechanism (3) and a second-stage magnetic separation mechanism (3), the second-stage magnetic separation mechanism (3) is located on the right side of the first-stage magnetic separation mechanism (3), the magnetic separation mechanism (3) comprises rollers (31), a conveyor belt (32), a magnetic separation plate (33), a driven roller (34), scraping teeth (35) and a motor I, the rollers (31) are two in number, the two rollers (31) are arranged up and down, the upper roller (31) is located on the right side of the lower roller (31), and the conveyor belt (32) is arranged between the two rollers (31); the magnetic separation plate (33) is arranged on the conveyor belt (32), the magnetic separation plate (33) is made of a magnetic material, the magnetic separation plate (33) is of a dentate structure, and the magnetic separation plate (33) is used for screening magnetic rare earth particles and realizing separation of concentrate and tailings to purify the concentrate; the driven roller (34) is positioned on the right side of the magnetic separation mechanism (3), scraping teeth (35) are arranged on the surface of the driven roller (34), the scraping teeth (35) are meshed with the magnetic separation plate (33) on the conveyor belt (32), and the scraping teeth (35) are used for scraping off rare earth particles adsorbed on the surface of the magnetic separation plate (33); the first motor is arranged on the outer wall of the rack (1), and an output shaft of the first motor is connected with the roller (31); wherein the content of the first and second substances,
a first-stage tailing outlet (11) is arranged below the first-stage magnetic separation mechanism (3), and a first-stage concentrate outlet (12) is arranged below the driven roller (34) of the first-stage magnetic separation mechanism (3); a second-stage tailing outlet (13) is arranged below the second-stage magnetic separation mechanism (3), a second-stage concentrate outlet (14) is arranged below the driven roller (34) of the second-stage magnetic separation mechanism (3), the first-stage tailing outlet (11) is communicated with the second-stage tailing outlet (13), the first-stage concentrate outlet (12) is connected with the second-stage magnetic separation mechanism (3), the second-stage concentrate outlet (14) extends to the outer side of the rack (1), and a leakage hole (331) is formed in the surface of the magnetic separation plate (33); the quantity of the leak holes (331) is two at least, the leak holes (331) on the adjacent magnetic separation plate (33) are not overlapped in position, the leak holes (331) are used for stirring and scattering rare earth ore when the magnetic separation plate (33) moves along with the conveyor belt (32), and meanwhile, the magnetic rare earth particles in the rare earth ore are fully adsorbed on the magnetic separation plate (33), a chute is arranged at the top end of the magnetic separation plate (33) towards the inside of the magnetic separation plate (33), the chute is communicated with the leak holes (331) on the magnetic separation plate (33), a push rod (51) is arranged in the chute, a scraper (52) is arranged in the leak holes (331), the scraper (52) is fixedly connected with a push rod (51), the push rod (51) and the scraper (52) are made of rubber materials, the scraper (52) is used for scraping the magnetic rare earth particles in the leak holes (331), and a pressing plate (53) is fixed at one end of the push rod (51), an elastic air bag (54) is arranged between the pressing plate (53) and the magnetic separation plate (33), the elastic air bag (54) is of an annular structure, the elastic air bag (54) is installed on the push rod (51), a groove (351) is formed in the top end of the scraping tooth (35) towards the inside of the scraping tooth (35), stepped grooves are formed in the left side wall and the right side wall of the scraping tooth (35), the bottom of each stepped groove is communicated with the groove (351), a cleaning rod (61) is arranged in the groove (351) of the scraping tooth (35), the middle of the cleaning plate is hinged in the groove (351) of the scraping tooth (35), a movable plate I (62) is hinged to one end of the cleaning plate located in the groove (351), a movable plate II (63) is arranged in the stepped groove of the scraping tooth (35), the movable plate I (62) is connected with the movable plate II (63) through a spring I, a pressing strip (64) is arranged at one end of the movable, the pressing strip (64) can move into the stepped groove of the scraping tooth (35).
2. The rare earth purification apparatus according to claim 1, wherein: the leakage detection magnetic separation mechanism (4) is arranged below the second-stage tailing outlet (13), and the leakage detection magnetic separation mechanism (4) comprises a transmission shaft (41), a conveying belt (42), a first electromagnet (43), a second electromagnet (44), a supporting rod (45), a second spring and a second motor; the number of the transmission shafts (41) is two, the transmission shafts (41) are arranged in a left-high-right-low mode, a conveying belt (42) is arranged between the two transmission shafts (41), a final tailing collecting tank (7) is arranged below the left transmission shaft (41), a second motor is arranged on the rack (1), and an output shaft of the second motor is connected with the transmission shafts (41); the electromagnet I (43) is positioned between the conveyer belts (42), and the electromagnet I (43) is fixed on the front wall and the rear wall of the rack (1); the number of the second electromagnets (44) is at least two, the second electromagnets (44) are positioned below the conveying belt (42), the second electromagnets (44) are obliquely arranged, the second electromagnets (44) are fixed at the top of the supporting rod (45), and the magnetism of the second electromagnets (44) is greater than that of the first electromagnets (43); the lower end of the supporting rod (45) is connected with the bottom of the rack (1) through a second spring.
3. The rare earth purification apparatus according to claim 2, wherein: the conveying belt (42) is provided with a material pushing plate (421), and the inclination direction of the material pushing plate (421) is the same as the inclination direction of the conveying belt (42).
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| CN109926203A (en) * | 2019-04-04 | 2019-06-25 | 山东上元再生资源有限公司 | A kind of agitating type concentration equipment |
| CN110813531B8 (en) * | 2019-11-04 | 2024-03-26 | 青川县双龙砂业发展有限责任公司 | Quartz sand deironing magnetic separation device |
| CN112495583B (en) * | 2020-11-23 | 2022-11-08 | 安泰北方科技有限公司 | Continuous rare earth permanent magnet powder separating and screening device |
| CN112847948B (en) * | 2020-12-18 | 2022-07-26 | 湖南省长沙磊鑫环保科技有限公司 | Solid waste recovery device with multisource solid waste recycling function |
| CN113751194B (en) * | 2021-09-24 | 2024-01-26 | 井冈山大学 | Device for extracting magnetic biochar from soil |
| CN115569735B (en) * | 2022-10-13 | 2023-11-14 | 睢宁兴港商砼有限公司 | Pretreatment method for concrete processing raw materials |
| CN116651612B (en) * | 2023-07-31 | 2023-09-29 | 潍坊追日磁电科技有限公司 | Efficient magnetic separator |
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