A kind of high-efficiency extraction equipment and extraction method of rare earth oxide

Abstract

The invention relates to the technical field of rare earth oxide extraction, in particular to a high-efficiency extraction device and method for rare earth oxides. The device comprises a shell, a feed inlet, a discharge outlet, a centrifugal tube, a No. 2 tank, a scraper, a motor, a No. 1 tank and an electric telescopic rod. When the motor drives the No. 1 block to rotate, the No. 1 block drives the No. 1 plate to rotate, so that the No. 1 plate is an inclined device. When the No. 1 plate rotates with the output shaft of the motor as the center, the No. 1 plate guides the clean water and feed liquid inside the centrifugal tube to the inner wall of the centrifugal tube, so that the impact force of the clean water on the inner wall of the centrifugal tube is increased, so that the impurities on the inner wall of the centrifugal tube are cleaned more fully by the clean water. Subsequently, a controller controls the electric telescopic rod to extend and retract, so that the impurities flow out from between the centrifugal tube and the No. 1 plate along with the clean water, so that the cleaning efficiency inside the centrifugal tube is increased, and the subsequent extraction efficiency of the centrifugal extractor is increased.

Description

Technical Field

[0001] The invention relates to the technical field of rare earth oxide extraction, in particular to a high-efficiency extraction device and method for rare earth oxide. Background Art

[0002] The hardness, density and bonding strength of the spray coating of iron-based alloy powder are roughly equivalent to those of nickel-based alloy powder coating. Therefore, it can replace nickel-based alloy powder in many occasions, but the toughness of the coating is lower than that of nickel-based alloy powder coating. Iron-based alloy powder coating has good wear resistance, and iron-based powder needs to be ground into powder during production, and during the grinding process, it is often encountered that the output particle size is uneven, and the filter unit that filters the iron powder at the outlet is blocked.

[0003] There is also a patent in the prior art about an efficient extraction device and extraction method of rare earth oxides, such as a Chinese patent with application number CN2019105436170 that discloses a centrifugal extraction and separation device for high-purity rare earth oxides; the technical problem of the present invention is to provide a centrifugal extraction and separation device for high-purity rare earth oxides that can be isolated after the heavy phase liquid and the light phase liquid are separated to prevent the light phase liquid from being thrown out with the heavy phase liquid, and at the same time can speed up the liquid mixing speed. The technical solution is: a centrifugal extraction and separation device for high-purity rare earth oxides, including an outer cylinder, a heavy phase inlet, a light phase outlet, etc.; a heavy phase inlet is provided on the upper part of the left wall of the outer cylinder, and a light phase outlet is provided on the left wall of the outer cylinder above the heavy phase inlet.

[0004] In the above-mentioned prior art, an outer cylinder, a heavy phase inlet and a light phase outlet are provided so that the light phase liquid and the heavy phase liquid of the above-mentioned application can be better isolated and thrown out, thereby improving the separation effect. The distance between the arc plates is adjusted according to the amount of the light phase liquid, so that the light phase liquid can be better accommodated between the arc plates; however, after the centrifugal extractor in the prior art has been used many times, the feed liquid produced by the extraction inside the centrifugal extractor has stickiness, causing the feed liquid to adhere to the inner wall of the shell and the inside of the centrifuge tube, thereby causing the extract adhering to the inner wall of the shell to affect the subsequent use efficiency of the centrifugal extractor when the centrifugal extractor is used subsequently.

[0005] In view of this, the present invention proposes a highly efficient extraction device and method for rare earth oxides to solve the above problems. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art and solve the problem in the prior art that after the centrifugal extractor in the prior art has been used for many times, the feed liquid produced by the extraction inside the centrifugal extractor has stickiness, causing the feed liquid to adhere to the inner wall of the shell and the inside of the centrifuge tube, thereby causing the extract adhering to the inner wall of the shell to affect the subsequent use efficiency of the centrifugal extractor when the centrifugal extractor is used subsequently; the present invention proposes a high-efficiency extraction device and extraction method for rare earth oxides.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a high-efficiency extraction device for rare earth oxides, the extraction device includes a centrifugal extractor, the centrifugal extractor includes a shell and a motor; the shell is provided with a feed port and a discharge port; the motor is fixedly connected to the upper end of the shell through a bracket, and the output shaft of the motor extends into the inner wall of the shell through the feed port; a No. 1 groove is provided at the lower end of the output shaft of the motor, and an electric telescopic rod is fixedly connected to the No. 1 groove; a centrifuge tube is arranged inside the shell, and a No. 1 plate is arranged at the lower end of the centrifuge tube, the output shaft of the motor extends into the interior of the centrifuge tube, the outer ring of the output shaft of the motor is fixedly connected to a support rod, the support rod is fixedly connected to the inner wall of the centrifuge tube, the end of the electric telescopic rod away from the motor is fixedly connected to the No. 1 plate at the bottom of the centrifuge tube, the upper and lower outer rings of the output shaft of the motor are evenly fixedly connected to No. 1 blocks, and No. 1 plates are fixedly connected between the upper and lower No. 1 blocks, and there is a gap between the No. 1 plate and the output shaft of the motor;

[0008] When in use, the rare earth oxides include separation process and purification process in the extraction process. For heavy rare earth ores mainly composed of oxides, cyclopentane acid system is used for extraction and separation, and then the oxide extraction is improved through subsequent processes. During the extraction and separation process, the rare earth liquid is passed into the shell through the feed port on the top of the shell, and then the motor is started and the motor rotates. One side of the output shaft of the motor is fixedly connected to the inner wall of the centrifuge tube through a support rod, and the lower end of the output shaft of the motor is fixedly connected to the upper center position of the first disk. When the motor rotates, the motor drives the centrifuge tube and the first disk to rotate. When the motor rotates, the rare earth liquid is introduced into the centrifuge tube, and the electric telescopic rod at the lower end of the output shaft of the motor is in a tightened state, so that the upper end of the first disk is blocked against the lower end of the centrifuge tube, so that the liquid is centrifugally extracted inside the centrifuge tube, so that the oxides and waste residues inside the rare earth liquid are separated, and the separated oxides and shell The inner wall of the body is contacted, and then the oxide flows out from the discharge port. After the centrifugal extraction equipment has been used many times, clean water is introduced into the shell through the feed port, and the motor drives the centrifuge tube and the No. 1 disk to rotate. When the centrifuge tube rotates, the centrifuge tube drives the clean water inside to stir the inside of the centrifuge tube, and the No. 1 plate fixedly connected to the output shaft of the motor through the No. 1 block stirs the clean water inside the centrifuge tube. Then the controller controls the electric telescopic rod to extend, and the electric telescopic rod pushes the No. 1 disk to separate the No. 1 disk from the centrifuge tube. Then the impurities passing through the inside of the centrifuge tube are flushed out from between the centrifuge tube and the No. 1 disk along with the clean water, thereby playing the effect of cleaning the inside of the centrifuge tube, and when the centrifuge tube rotates, the clean water inside the centrifuge tube is sprayed out through the filter holes on the centrifuge tube, so that the clean water impacts the impurities remaining on the inner wall of the shell, thereby achieving the effect of cleaning the inside of the shell and the inside of the centrifuge tube, thereby improving the extraction efficiency of the subsequent centrifugal extractor.

[0009] Preferably, the first plate is tilted, and the distance between one end of the first plate and the output shaft of the motor is smaller than the distance between the other end of the first plate and the output shaft of the motor;

[0010] When in use, the No. 1 plate is tilted so that the distance between one end of the No. 1 plate and the output shaft of the motor is smaller than the distance between the other end of the No. 1 plate and the output shaft of the motor. When the motor rotates, the output shaft of the motor drives the No. 1 block to rotate. When the No. 1 block rotates, the No. 1 block drives the No. 1 plate to rotate. The No. 1 plate is tilted so that when the No. 1 plate rotates around the output shaft of the motor, the No. 1 plate guides the clean water and the feed liquid inside the centrifuge tube toward the inner wall of the centrifuge tube. When the centrifuge tube is clean water, the No. 1 plate guides the clean water to increase the impact force of the clean water on the inner wall of the centrifuge tube, thereby making the impurities on the inner wall of the centrifuge tube be cleaned more fully by the clean water. Subsequently, the controller controls the electric telescopic rod to extend and retract, so that the impurities flow out from between the centrifuge tube and the No. 1 plate along with the clean water, thereby increasing the cleaning efficiency inside the centrifuge tube, thereby increasing the subsequent extraction efficiency of the centrifugal extractor.

[0011] Preferably, a second groove is provided on the lower end surface of the centrifuge tube, the cross section of the second groove is semicircular, and a convex block is fixedly connected to the outer side of the upper end of the first plate, the cross section of the convex block is semicircular;

[0012] When in use, a second groove is provided at the lower end of the centrifuge tube so that the cross section of the second groove is semicircular, and a convex block is fixedly connected to the outer side of the upper end of the first plate so that the cross section of the convex block is semicircular. When the electric telescopic rod moves, the electric telescopic rod pushes the first plate to be separated from the lower end of the centrifuge tube, so that a gap is formed between the centrifuge tube and the first plate, so that impurities flow out of the centrifuge tube; when the electric telescopic rod is contracted, the convex block on the upper end surface of the first plate enters the second groove at the lower end of the centrifuge tube, so that the contact area between the first plate and the centrifuge tube is increased, so that when the centrifuge tube is extracting rare earth liquid, the sealing performance between the first plate and the centrifuge tube is increased.

[0013] Preferably, the outer ring of the No. 1 plate is evenly fixedly connected to the No. 1 rod, one end of the No. 1 rod away from the centrifuge tube is evenly fixedly connected to the No. 2 rod, the No. 2 rod is perpendicular to the horizontal plane, and the No. 2 rod is evenly fixedly connected to scrapers above and below;

[0014] When in use, the rod No. 1 is evenly fixed to the outer circle of the No. 1 plate, and the rod No. 2 is evenly fixed to the end of the No. 1 rod away from the centrifuge tube, so that the No. 2 rod is perpendicular to the horizontal plane, and the scraper is evenly fixed to the upper and lower parts of the No. 2 rod. When the motor moves, the output shaft of the motor drives the centrifuge tube and the No. 1 plate to move, the movement of the No. 1 plate drives the rod No. 1 to move, and the movement of the No. 1 rod drives the No. 2 rod to move. When the No. 2 rod moves, the No. 2 rod scrapes the rare earth liquid adhered to the inner wall of the shell to avoid the rare earth liquid adhering to the inner wall of the shell, and when the electric telescopic rod moves, the electric telescopic rod pushes the No. 1 plate to move downward, and the No. 1 plate drives the scraper to move downward through the No. 1 rod and the No. 2 rod. When the scraper moves downward, the rare earth liquid adhered to the inner wall of the shell flows downward, thereby improving the discharge efficiency of the extract in the rare earth.

[0015] Preferably, the cross section of the scraper is an isosceles trapezoid, and the end with a larger bottom edge of the scraper contacts the inner wall of the shell;

[0016] When in use, the cross-section of the scraper is made to be an isosceles trapezoid, so that the larger end of the scraper bottom is in contact with the inner wall of the shell. When the motor rotates, the motor drives the centrifuge tube and the No. 1 plate to rotate, and the rotation of the No. 1 plate drives the No. 1 rod to rotate. When the No. 1 rod rotates, it drives the scraper to rotate. After clean water is introduced into the shell to clean the inside of the shell, the controller controls the electric telescopic rod to extend and retract, and the electric telescopic rod pushes the No. 1 plate to separate the centrifuge tube, and the No. 1 plate moves downward. When the No. 1 plate moves downward, the No. 1 plate drives the scraper to move downward through the No. 1 rod and the No. 2 rod. When the liquid scraped by the scraper contacts the adjacent lower scraper, the inclined surface on the scraper drains the liquid, so that the liquid drips downward under its own gravity, so that the liquid avoids contacting the inner wall of the shell again after being scraped by the scraper, thereby preventing the liquid from adhering to the inner wall of the shell again.

[0017] Preferably, the No. 1 rod is fan-shaped, and when the motor rotates, the No. 1 rod is used to blow air toward the discharge port;

[0018] When in use, rod No. 1 is made into a fan-blade shape. When the motor rotates, the motor drives the centrifuge tube and plate No. 1 to rotate. When plate No. 1 rotates, plate No. 1 drives rod No. 1 to move. When rod No. 1 moves, rod No. 1 is made into a fan-blade shape. When rod No. 1 rotates, rod No. 1 blows downward. The gas generated by rod No. 1 is discharged through the discharge port. When the gas is discharged through the discharge port, the gas blows the feed liquid on the inner wall of the shell, thereby increasing the efficiency of the feed liquid flowing downward on the inner wall of the shell to a certain extent, thereby increasing the discharge efficiency of the rare earth feed liquid after extraction.

[0019] A method for efficiently extracting rare earth oxides, which is applicable to the above-mentioned device for efficiently extracting rare earth oxides, and comprises the following steps:

[0020] S1: The rare earth liquid is introduced into the shell through the feed port on the top of the shell, and then the motor is started, which drives the centrifuge tube and the first plate to rotate, so that the rare earth liquid enters the centrifuge tube, and the electric telescopic rod at the lower end of the output shaft of the motor is in a tightened state, so that the upper end of the first plate is blocked against the lower end of the centrifuge tube, so that the liquid is centrifugally extracted inside the centrifuge tube, and the separated oxides are in contact with the inner wall of the shell, and then the oxides flow out from the discharge port;

[0021] S2: After the centrifugal extraction equipment has finished extracting the rare earth liquid, clean water is introduced into the shell through the feed port, the motor drives the centrifuge tube and the No. 1 plate to rotate, the centrifuge tube drives the clean water inside to stir the inside of the centrifuge tube, and the No. 1 plate fixedly connected to the output shaft of the motor through the No. 1 block stirs the clean water inside the centrifuge tube, and then the controller controls the electric telescopic rod to extend, the electric telescopic rod pushes the No. 1 plate, so that the No. 1 plate is separated from the centrifuge tube, and then the impurities inside the centrifuge tube are flushed out from between the centrifuge tube and the No. 1 plate along with the clean water;

[0022] S3: When the motor moves, the output shaft of the motor drives the centrifuge tube and plate No. 1 to move, the movement of plate No. 1 drives rod No. 1 to move, the movement of rod No. 1 drives rod No. 2 to move, rod No. 2 scrapes the rare earth liquid adhered to the inner wall of the shell, and when the electric telescopic rod moves, the electric telescopic rod pushes plate No. 1 to move downward, plate No. 1 drives the scraper to move downward through rod No. 1 and rod No. 2, and when the scraper moves downward, the rare earth liquid adhered to the inner wall of the shell flows downward.

[0023] The beneficial effects of the present invention are as follows:

[0024] 1. The invention discloses a highly efficient extraction device and method for rare earth oxides, which comprises a shell, a plate No. 1, a motor and a disk No. 1; when the motor drives the block No. 1 to rotate, the block No. 1 drives the plate No. 1 to rotate, so that the plate No. 1 is tilted, and when the plate No. 1 rotates around the output shaft of the motor, the plate No. 1 guides the clean water and the liquid feed inside the centrifuge tube toward the inner wall of the centrifuge tube, thereby increasing the impact force of the clean water on the inner wall of the centrifuge tube, so that the impurities on the inner wall of the centrifuge tube are cleaned more fully by the clean water, and then the controller controls the electric telescopic rod to extend and retract, so that the impurities flow out from between the centrifuge tube and the disk No. 1 along with the clean water, thereby increasing the cleaning efficiency inside the centrifuge tube, and thus increasing the subsequent extraction efficiency of the centrifugal extractor.

[0025] 2. The high-efficiency extraction equipment and method of rare earth oxides described in the present invention are provided with a centrifuge tube, a No. 2 groove, a No. 1 plate and a protrusion; when the electric telescopic rod moves, the electric telescopic rod pushes the No. 1 plate to separate from the lower end of the centrifuge tube, thereby forming a gap between the centrifuge tube and the No. 1 plate, so that impurities flow out of the centrifuge tube; when the electric telescopic rod contracts, the protrusion on the upper end surface of the No. 1 plate enters the No. 2 groove at the lower end of the centrifuge tube, thereby increasing the contact area between the No. 1 plate and the centrifuge tube, so that when the centrifuge tube is extracting rare earth liquid, the sealing between the No. 1 plate and the centrifuge tube is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below in conjunction with the accompanying drawings.

[0027] Figure 1 is a flow chart of the method of the present invention;

[0028] Figure 2 is a stereogram of the present invention;

[0029] Figure 3 is a cross-sectional view of the present invention;

[0030] Figure 4 yes Figure 3 Structural view of centrifuge tube and scraper;

[0031] Figure 5 yes Figure 3 A partial cross-sectional view of a centrifuge tube;

[0032] In the figure: shell 1, feed port 11, discharge port 12, centrifuge tube 13, No. 2 trough 14, scraper 15, motor 2, No. 1 trough 21, electric telescopic rod 22, No. 1 plate 23, support rod 24, No. 1 block 25, No. 1 plate 26, protrusion 27, No. 1 rod 28, No. 2 rod 29. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0034] like Figures 1 to 5As shown, a high-efficiency extraction device for rare earth oxides includes a centrifugal extractor, which includes a housing 1 and a motor 2; the housing 1 is provided with a feed inlet 11 and a discharge inlet 12; the motor 2 is fixedly connected to the upper end of the housing 1 through a bracket, and the output shaft of the motor 2 extends into the inner wall of the housing 1 through the feed inlet 11; a first groove 21 is provided at the lower end of the output shaft of the motor 2, and an electric telescopic rod 22 is fixedly connected to the first groove 21; a centrifuge tube 13 is arranged inside the housing 1, and the centrifuge tube 1 A No. 1 plate 23 is provided at the lower end of 3, the output shaft of the motor 2 extends into the interior of the centrifuge tube 13, the outer ring of the output shaft of the motor 2 is fixedly connected with a support rod 24, the support rod 24 is fixedly connected to the inner wall of the centrifuge tube 13, the end of the electric telescopic rod 22 away from the motor 2 is fixedly connected to the No. 1 plate 23 at the bottom of the centrifuge tube 13, the upper and lower outer rings of the output shaft of the motor 2 are evenly fixedly connected to No. 1 blocks 25, and No. 1 plates 26 are fixedly connected between the upper and lower No. 1 blocks 25, and there is a gap between the No. 1 plate 26 and the output shaft of the motor 2;

[0035] When in use, the rare earth oxides include separation process and purification process in the extraction process. For heavy rare earth ores mainly composed of oxides, cyclohexane acid system is used for extraction and separation, and then the oxide extraction is improved through subsequent processes. During the extraction and separation process, the rare earth liquid is introduced into the shell 1 through the feed port 11 above the shell 1, and then the motor 2 is started and rotated. One side of the output shaft of the motor 2 is fixedly connected to the inner wall of the centrifuge tube 13 through the support rod 24, and the lower end of the output shaft of the motor 2 is connected to the first disk 23. When the motor 2 rotates, the motor 2 drives the centrifuge tube 13 and the first disk 23 to rotate. When the motor 2 rotates, the rare earth liquid enters the centrifuge tube 13, and the electric telescopic rod 22 at the lower end of the output shaft of the motor 2 is in a tightened state, so that the upper end of the first disk 23 faces the lower end of the centrifuge tube 13 to block, so that the liquid is centrifugally extracted inside the centrifuge tube 13, so that the oxides and waste residues inside the rare earth liquid are separated, and the separated oxides contact the inner wall of the shell 1, and then The oxide flows out from the discharge port 12. After the centrifugal extraction device has been used for many times, clean water is introduced into the shell 1 through the feed port 11. The motor 2 drives the centrifuge tube 13 and the No. 1 disk 23 to rotate. When the centrifuge tube 13 rotates, the centrifuge tube 13 drives the clean water inside to stir the inside of the centrifuge tube 13, and the No. 1 plate 26 fixedly connected to the output shaft of the motor 2 through the No. 1 block 25 stirs the clean water inside the centrifuge tube 13. Then the controller controls the electric telescopic rod 22 to extend, and the electric telescopic rod 22 pushes the No. 1 disk 2 3, so that the first disk 23 is separated from the centrifuge tube 13, and then the impurities in the centrifuge tube 13 are flushed out from between the centrifuge tube 13 and the first disk 23 along with the clean water, so as to clean the inside of the centrifuge tube 13, and when the centrifuge tube 13 rotates, the clean water in the centrifuge tube 13 is sprayed out through the filter holes on the centrifuge tube 13, so that the clean water impacts the impurities remaining on the inner wall of the shell 1, so as to achieve the effect of cleaning the inside of the shell 1 and the inside of the centrifuge tube 13, thereby improving the extraction efficiency of the subsequent centrifugal extractor.

[0036] As a specific embodiment of the present invention, the first plate 26 is tilted, and the distance between one end of the first plate 26 and the output shaft of the motor 2 is smaller than the distance between the other end of the first plate 26 and the output shaft of the motor 2;

[0037] When in use, by making the No. 1 plate 26 be tilted, the distance between one end of the No. 1 plate 26 and the output shaft of the motor 2 is smaller than the distance between the other end and the output shaft of the motor 2. When the motor 2 rotates, the output shaft of the motor 2 drives the No. 1 block 25 to rotate. When the No. 1 block 25 rotates, the No. 1 block 25 drives the No. 1 plate 26 to rotate. The No. 1 plate 26 is tilted, so that when the No. 1 plate 26 rotates around the output shaft of the motor 2, the No. 1 plate 26 guides the clean water and the feed liquid inside the centrifuge tube 13 toward the inner wall of the centrifuge tube 13. When the centrifuge tube 13 is clean water, the No. 1 plate 26 guides the clean water, so that the impact force of the clean water on the inner wall of the centrifuge tube 13 is increased, so that the impurities on the inner wall of the centrifuge tube 13 are cleaned more fully by the clean water. Then the controller controls the electric telescopic rod 22 to extend and retract, so that the impurities flow out from between the centrifuge tube 13 and the No. 1 plate 23 along with the clean water, thereby increasing the cleaning efficiency inside the centrifuge tube 13, thereby increasing the subsequent extraction efficiency of the centrifugal extractor.

[0038] As a specific embodiment of the present invention, the lower end surface of the centrifuge tube 13 is provided with a second groove 14, the cross section of the second groove 14 is semicircular, and the outer side of the upper end of the first disk 23 is fixedly connected with a protrusion 27, the cross section of the protrusion 27 is semicircular;

[0039] When in use, the second groove 14 is provided at the lower end of the centrifuge tube 13, so that the cross section of the second groove 14 is semicircular, and the outer side of the upper end of the first disk 23 is fixedly connected with a protrusion 27, so that the cross section of the protrusion 27 is semicircular. When the electric telescopic rod 22 moves, the electric telescopic rod 22 pushes the first disk 23 to separate from the lower end of the centrifuge tube 13, so that a gap is formed between the centrifuge tube 13 and the first disk 23, so that impurities flow out of the centrifuge tube 13; when the electric telescopic rod 22 is contracted, the protrusion 27 on the upper end surface of the first disk 23 enters the second groove 14 at the lower end of the centrifuge tube 13, so that the contact area between the first disk 23 and the centrifuge tube 13 is increased, so that when the centrifuge tube 13 extracts the rare earth liquid, the sealing between the first disk 23 and the centrifuge tube 13 is increased.

[0040] As a specific embodiment of the present invention, the outer ring of the No. 1 disk 23 is evenly fixedly connected to the No. 1 rod 28, and the end of the No. 1 rod 28 away from the centrifuge tube 13 is evenly fixedly connected to the No. 2 rod 29, the No. 2 rod 29 is perpendicular to the horizontal plane, and the No. 2 rod 29 is evenly fixedly connected to the scraper 15 above and below;

[0041] When in use, the No. 1 rod 28 is evenly fixed to the outer ring of the No. 1 disk 23, and the No. 2 rod 29 is evenly fixed to the end of the No. 1 rod 28 away from the centrifuge tube 13, so that the No. 2 rod 29 is perpendicular to the horizontal plane, and the scraper 15 is evenly fixed to the upper and lower parts of the No. 2 rod 29. When the motor 2 moves, the output shaft of the motor 2 drives the centrifuge tube 13 and the No. 1 disk 23 to move, the No. 1 disk 23 moves to drive the No. 1 rod 28 to move, the No. 1 rod 28 moves to drive the No. 2 rod 29 to move, and the No. 2 rod 2 When the electric telescopic rod 22 moves, the electric telescopic rod 22 pushes the first plate 23 to move downward, and the first plate 23 drives the scraper 15 to move downward through the first rod 28 and the second rod 29. When the scraper 15 moves downward, the rare earth liquid adhered to the inner wall of the shell 1 flows downward, thereby improving the discharge efficiency of the extract in the rare earth.

[0042] As a specific embodiment of the present invention, the cross section of the scraper 15 is an isosceles trapezoid, and the end of the scraper 15 with a larger bottom edge is in contact with the inner wall of the housing 1;

[0043] When in use, the cross section of the scraper 15 is an isosceles trapezoid, so that the end with the larger bottom side of the scraper 15 contacts the inner wall of the shell 1. When the motor 2 rotates, the motor 2 drives the centrifuge tube 13 and the No. 1 disk 23 to rotate, and the No. 1 disk 23 rotates to drive the No. 1 rod 28 to rotate. When the No. 1 rod 28 rotates, it drives the scraper 15 to rotate. After the shell 1 is cleaned by passing clean water into the shell 1, the controller controls the electric telescopic rod 22 to extend and retract, and the electric telescopic rod 22 pushes the No. 1 disk 2 3 is separated from the centrifuge tube 13, and the first plate 23 moves downward. When the first plate 23 moves downward, the first plate 23 drives the scraper 15 to move downward through the first rod 28 and the second rod 29. When the liquid scraped by the scraper 15 contacts the scraper 15 on the adjacent lower side, the inclined surface of the scraper 15 drains the liquid, so that the liquid drips downward under its own gravity, so that the liquid is prevented from contacting the inner wall of the shell 1 again after being scraped by the scraper 15, so that the liquid is prevented from adhering to the inner wall of the shell 1 again.

[0044] As a specific embodiment of the present invention, the first rod 28 is fan-shaped, and the motor 2 rotates, and the first rod 28 is used to blow airflow toward the discharge port 12;

[0045] When in use, the rod 28 is fan-shaped. When the motor 2 rotates, the motor 2 drives the centrifuge tube 13 and the first plate 23 to rotate. When the first plate 23 rotates, the first plate 23 drives the rod 28 to move. When the rod 28 moves, the rod 28 is fan-shaped, so that when the rod 28 rotates, the rod 28 blows downward. The gas generated by the rod 28 is discharged through the discharge port 12. In the process of the gas being discharged through the discharge port 12, the gas blows the liquid on the inner wall of the shell 1, thereby increasing the efficiency of the liquid flowing downward on the inner wall of the shell 1 to a certain extent, thereby increasing the discharge efficiency of the rare earth liquid after extraction.

[0046] A method for efficiently extracting rare earth oxides, which is applicable to the above-mentioned device for efficiently extracting rare earth oxides, and comprises the following steps:

[0047] S1: The rare earth liquid is introduced into the shell 1 through the feed port 11 above the shell 1, and then the motor 2 is started, which drives the centrifuge tube 13 and the first disk 23 to rotate, so that the rare earth liquid enters the centrifuge tube 13, and the electric telescopic rod 22 at the lower end of the output shaft of the motor 2 is in a tightened state, so that the upper end of the first disk 23 faces the lower end of the centrifuge tube 13 to block, so that the liquid is centrifugally extracted inside the centrifuge tube 13, and the separated oxides contact the inner wall of the shell 1, and then the oxides flow out from the discharge port 12;

[0048] S2: After the centrifugal extraction equipment has finished extracting the rare earth liquid, clean water is introduced into the shell 1 through the feed port 11, the motor 2 drives the centrifuge tube 13 and the No. 1 plate 23 to rotate, the centrifuge tube 13 drives the clean water inside to stir the inside of the centrifuge tube 13, and the No. 1 plate 26 fixedly connected to the output shaft of the motor 2 through the No. 1 block 25 stirs the clean water inside the centrifuge tube 13, then the controller controls the electric telescopic rod 22 to extend, the electric telescopic rod 22 pushes the No. 1 plate 23, so that the No. 1 plate 23 is separated from the centrifuge tube 13, and then the impurities passing through the inside of the centrifuge tube 13 are flushed out from between the centrifuge tube 13 and the No. 1 plate 23 along with the clean water;

[0049] S3: When the motor 2 moves, the output shaft of the motor 2 drives the centrifuge tube 13 and the No. 1 plate 23 to move, the No. 1 plate 23 moves to drive the No. 1 rod 28 to move, the No. 1 rod 28 moves to drive the No. 2 rod 29 to move, the No. 2 rod 29 scrapes the rare earth liquid adhered to the inner wall of the shell 1, and when the electric telescopic rod 22 moves, the electric telescopic rod 22 pushes the No. 1 plate 23 to move downward, the No. 1 plate 23 drives the scraper 15 to move downward through the No. 1 rod 28 and the No. 2 rod 29, and when the scraper 15 moves downward, the rare earth liquid adhered to the inner wall of the shell 1 flows downward.

[0050] The specific workflow is as follows:

[0051] The extraction process of rare earth oxides includes separation process and purification process. For heavy rare earth ores mainly composed of oxides, cyclopentane acid system is used for extraction and separation, and then the oxide extraction is improved through subsequent processes. During the extraction and separation process, the rare earth liquid is introduced into the shell 1 through the feed port 11 above the shell 1, and then the motor 2 is started and the motor 2 rotates. One side of the output shaft of the motor 2 is fixedly connected to the inner wall of the centrifuge tube 13 through the support rod 24, and the lower end of the output shaft of the motor 2 is fixedly connected to the upper center position of the first disk 23. When the motor 2 rotates, the motor 2 drives the centrifuge tube 13 and the first disk 23 to rotate. When the motor 2 rotates, the rare earth liquid is introduced into the centrifuge tube 13, and the electric telescopic rod 22 at the lower end of the output shaft of the motor 2 is in a tightened state, so that the upper end of the first disk 23 faces the lower end of the centrifuge tube 13 to be blocked, so that the liquid is centrifugally extracted inside the centrifuge tube 13, and the separated oxides are separated from the shell 1. The inner wall of the centrifugal extraction device is contacted, and then the oxide flows out from the discharge port 12. After the centrifugal extraction equipment has been used many times, clean water is introduced into the shell body 1 through the feed port 11, and the motor 2 drives the centrifuge tube 13 and the No. 1 disk 23 to rotate. When the centrifuge tube 13 rotates, the centrifuge tube 13 drives the clean water inside to stir the inside of the centrifuge tube 13, and the No. 1 plate 26 fixedly connected to the output shaft of the motor 2 through the No. 1 block 25 stirs the clean water inside the centrifuge tube 13. Then the controller controls the electric telescopic rod 22 to extend, and the electric telescopic rod 22 pushes the No. 1 disk 23 to separate the No. 1 disk 23 from the centrifuge tube 13. Then the impurities passing through the inside of the centrifuge tube 13 are flushed out from between the centrifuge tube 13 and the No. 1 disk 23 along with the clean water, thereby playing the effect of cleaning the inside of the centrifuge tube 13, and when the centrifuge tube 13 rotates, the clean water inside the centrifuge tube 13 is sprayed out through the filter holes on the centrifuge tube 13, so that the clean water impacts the impurities remaining on the inner wall of the shell body 1.

[0052] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 2 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0053] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0054] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention. All other embodiments obtained by a person of ordinary skill in the art without making creative efforts are within the scope of protection of the present invention.

Claims

1. An efficient extraction device for rare earth oxides, the extraction device comprising a centrifugal extractor, characterized in that: The centrifugal extractor comprises a housing (1) and a motor (2); the housing (1) is provided with a feed inlet (11) and a discharge outlet (12); the motor (2) is fixedly connected to the upper end of the housing (1) through a bracket, and the output shaft of the motor (2) extends into the inner wall of the housing (1) through the feed inlet (11); a first groove (21) is provided at the lower end of the output shaft of the motor (2), and an electric telescopic rod (22) is fixedly connected to the first groove (21); a centrifuge tube (13) is arranged inside the housing (1), and a first plate (23) is arranged at the lower end of the centrifuge tube (13), and the first plate (23) is arranged at the lower end of the centrifuge tube (13). The output shaft of the motor (2) extends into the interior of the centrifuge tube (13); the outer ring of the output shaft of the motor (2) is fixedly connected with a support rod (24); the support rod (24) is fixedly connected to the inner wall of the centrifuge tube (13); the end of the electric telescopic rod (22) away from the motor (2) is fixedly connected to a No. 1 plate (23) at the bottom of the centrifuge tube (13); the upper and lower outer rings of the output shaft of the motor (2) are evenly fixedly connected to No. 1 blocks (25); a No. 1 plate (26) is fixedly connected between the upper and lower No. 1 blocks (25); and a gap is provided between the No. 1 plate (26) and the output shaft of the motor (2); The first plate (26) is arranged to be inclined, and the distance between one end of the first plate (26) and the output shaft of the motor (2) is smaller than the distance between the other end of the first plate (26) and the output shaft of the motor (2); The outer ring of the No. 1 disk (23) is evenly fixedly connected to a No. 1 rod (28), one end of the No. 1 rod (28) away from the centrifuge tube (13) is evenly fixedly connected to a No. 2 rod (29), the No. 2 rod (29) is perpendicular to the horizontal plane, and the No. 2 rod (29) is evenly fixedly connected to a scraper (15) above and below.

2. The high-efficiency extraction equipment of rare earth oxides according to claim 1, characterized in that: The lower end surface of the centrifuge tube (13) is provided with a second groove (14), the cross section of which is semicircular; the outer side of the upper end of the first disk (23) is fixedly connected with a convex block (27), the cross section of which is semicircular.

3. The high-efficiency extraction equipment of rare earth oxides according to claim 2, characterized in that: The cross section of the scraper (15) is an isosceles trapezoid, and the end with a larger bottom edge of the scraper (15) contacts the inner wall of the shell (1).

4. The high-efficiency extraction equipment of rare earth oxides according to claim 3, characterized in that: The first rod (28) is fan-shaped, and when the motor (2) rotates, the first rod (28) is used to blow airflow toward the discharge port (12).

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