Neodymium-iron-boron waste extraction and separation device

Abstract

The utility model relates to the technical field of neodymium-iron-boron waste extraction, and discloses a neodymium-iron-boron waste extraction and separation device which is characterized in that a portal frame is fixedly mounted at the top of a base, an outer barrel is arranged on the inner side of the portal frame, and a rotating motor, a rotating shaft and a linkage structure of the outer barrel are arranged; the rotating motor drives the rotating shaft to drive the outer barrel to rotate at a high speed, so that the filter cartridge in the outer barrel forms a centrifugal force field, and after neodymium iron boron waste mixed liquid enters the filter cartridge from the feeding pipe, solid particles are thrown to the inner wall of the filter cartridge under the action of centrifugal force, stay in the filter cartridge after being blocked by filter holes of the filter cartridge and are subsequently discharged from the discharging pipe. Compared with a traditional stirring and filtering mode, the centrifugal separation process has the advantages that the solid-liquid separation efficiency is remarkably improved, the treatment time is shortened, the agglomeration phenomenon of waste particles can be effectively overcome through centrifugal force, and a more thorough extraction reaction is achieved.

Description

Technical Field

[0001] This utility model relates to the field of NdFeB waste extraction technology, and in particular to a NdFeB waste extraction and separation device. Background Technology

[0002] Against the backdrop of the rapid development of the new energy and electronic information industries, neodymium iron boron (NdFeB) permanent magnet materials, due to their excellent magnetic properties such as high remanence, high coercivity, and high energy product, are widely used in wind power generation, new energy vehicles, and consumer electronics. However, the production process of NdFeB materials generates a large amount of waste, such as cutting debris and grinding powder. These wastes still contain a large amount of rare earth elements and iron. Efficient extraction, separation, and recycling of these materials can not only reduce production costs but also alleviate the shortage of rare earth resources, resulting in significant economic and environmental benefits.

[0003] Currently, traditional NdFeB waste extraction and separation devices mostly use sedimentation extraction tanks. Generally, the extractant is prepared and mixed and then directly poured into the NdFeB waste liquid for extraction and separation. After mixing with a stirring rod, it is filtered through a filter screen to complete solid-liquid separation. However, the stirring rods are mostly fixed in speed and have a blade structure, which is difficult to adapt to waste materials with different viscosities and particle sizes. They are prone to creating dead zones in the stirring, resulting in insufficient contact between the extractant and the waste material, incomplete extraction reaction, and limited stirring force, which cannot effectively disperse agglomerated particles, seriously affecting the extraction efficiency. Utility Model Content

[0004] The present invention addresses the shortcomings of conventional stirring rods, which are mostly designed with fixed rotation speeds and impeller structures. These limitations make it difficult to adapt to waste materials with varying viscosities and particle sizes, easily creating dead zones that prevent the extractant from fully contacting the waste material, resulting in incomplete extraction and limited stirring force that fails to effectively break up agglomerated particles, thus severely impacting extraction efficiency. This invention provides a neodymium iron boron waste extraction and separation device that offers the advantages of high-efficiency extraction and separation while reducing noise, thus solving the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a neodymium iron boron waste extraction and separation device, including a base, a gantry frame fixedly installed on the top of the base, an outer cylinder provided on the inner side of the gantry frame, a filter cylinder fixedly installed inside the outer cylinder, a feed pipe fixedly installed on the upper side of the filter cylinder, the feed pipe extending through to the outer side of the outer cylinder, a discharge pipe and an outlet pipe fixedly installed on the bottom and the outer side of the bottom of the outer cylinder, respectively, a solenoid valve fixedly installed in the middle of the discharge pipe and the outlet pipe, the solenoid valve being electrically connected to an external relay, a rotary motor installed on the upper end of the gantry frame, a rotating shaft fixedly installed on the top of the outer cylinder, and the rotary motor being connected to the top of the rotating shaft via a coupling.

[0006] Preferably, the top of the gantry frame is provided with an installation groove, the inner side of the installation groove is inlaid with sound-absorbing cotton, and the rotary motor is located at the upper end of the sound-absorbing cotton.

[0007] By installing sound-absorbing cotton, the noise from the rotating motor is absorbed, reducing equipment operating noise and improving the operating environment.

[0008] Preferably, the base has a through hole at its bottom and a bearing ring is fixedly installed inside the through hole, and the bottom outer surface of the outer cylinder is installed on the inner side of the bearing ring.

[0009] By using bearing rings, the bottom of the outer cylinder is supported to rotate, reducing frictional resistance and improving rotational stability and equipment operating efficiency.

[0010] Preferably, a fixing plate is fixedly installed at both ends of the inner side of the gantry frame, and a ring plate is fixedly installed at one end of the inner side of the fixing plate, and a guide rail is provided on the inner side of the ring plate.

[0011] The guide rails provide guidance and support for the rotation of the outer cylinder, reducing swaying and deviation, and ensuring the stability of the centrifugal separation process.

[0012] Preferably, a plurality of mounting brackets are fixedly installed on the middle of the outer surface of the outer cylinder, and a groove is provided at one end of the outer side of each of the mounting brackets, and a pulley is rotatably installed on the inner side of each groove.

[0013] By using pulleys in conjunction with guide rails to form rolling support, the rotational friction of the outer cylinder is reduced, improving rotational smoothness and extending the service life of the equipment.

[0014] Preferably, the multiple pulleys are all located inside the guide rail, and when the outer cylinder rotates, the multiple sets of pulleys roll along the guide rail path inside the ring plate.

[0015] By using pulleys that roll along the guide rails, sliding friction is converted into rolling friction, which significantly reduces the rotational resistance of the outer cylinder, making the centrifugal separation process more stable and efficient.

[0016] This utility model has the following advantages:

[0017] 1. By setting up a linkage structure between the rotary motor, the rotary shaft, and the outer cylinder, the rotary motor drives the rotary shaft to rotate the outer cylinder at high speed, causing the filter cylinder inside the outer cylinder to form a centrifugal force field. After the NdFeB waste mixture enters the filter cylinder through the feed pipe, under the action of centrifugal force, the solid particles are thrown towards the inner wall of the filter cylinder. After being blocked by the filter holes of the filter cylinder, they remain inside the filter cylinder and are subsequently discharged through the discharge pipe. The liquid passes through the filter holes into the bottom of the outer cylinder and flows out through the discharge pipe. Compared with the traditional stirring filtration method, this centrifugal separation process significantly improves the solid-liquid separation efficiency, shortens the processing time, and the centrifugal force can effectively overcome the agglomeration of waste particles, achieving a more thorough extraction reaction.

[0018] 2. By setting an installation groove and sound-absorbing cotton on the top of the gantry, the rotary motor is installed above the sound-absorbing cotton. The sound-absorbing properties of the cotton absorb the noise generated by the rotary motor during operation, reducing the operating noise of the equipment and improving the working environment. At the same time, the bearing ring at the bottom of the base fits with the outer surface of the bottom of the outer cylinder, and the rolling connection structure between the pulley on the outside of the outer cylinder and the guide rail on the inside of the gantry significantly reduces the frictional resistance experienced by the outer cylinder during rotation, ensuring smooth rotation of the outer cylinder, reducing vibration energy loss, thereby improving the stability and energy efficiency of the centrifugal separation process and extending the service life of the equipment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the front view of the present utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the outer cylinder of this utility model;

[0021] Figure 3 This is a schematic diagram of the external structure of the outer cylinder of this utility model;

[0022] Figure 4 This is a schematic diagram of the inner structure of the gantry frame of this utility model.

[0023] In the diagram: 1. Base; 2. Gantry frame; 3. Outer cylinder; 4. Feed pipe; 5. Filter cylinder; 6. Discharge pipe; 7. Outlet pipe; 8. Solenoid valve; 9. Rotary motor; 10. Rotary shaft; 11. Mounting groove; 12. Sound insulation cotton; 13. Fixing plate; 14. Ring plate; 15. Guide rail; 16. Mounting bracket; 17. Groove; 18. Pulley; 19. Bearing ring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-4A neodymium iron boron waste extraction and separation device includes a base 1, a gantry frame 2 fixedly installed on the top of the base 1, an outer cylinder 3 provided on the inner side of the gantry frame 2, a filter cylinder 5 fixedly installed inside the outer cylinder 3, and a feed pipe 4 fixedly installed on the upper side of the filter cylinder 5. The feed pipe 4 extends through to the outside of the outer cylinder 3. After the neodymium iron boron waste mixture enters the filter cylinder 5 through the feed pipe 4, under the action of centrifugal force, the solid particles are thrown towards the inner wall of the filter cylinder 5, and remain inside the filter cylinder 5 after being blocked by the filter holes. Subsequently, it is discharged by the discharge pipe 6, while the liquid passes through the filter holes into the bottom of the outer cylinder 3 and flows out through the discharge pipe 7. Compared with the traditional stirring filtration method, this centrifugal separation process significantly improves the solid-liquid separation efficiency, shortens the processing time, and the centrifugal force can effectively overcome the agglomeration of waste particles, achieving a more thorough extraction reaction.

[0026] A discharge pipe 6 and an outlet pipe 7 are fixedly installed at the bottom and outer side of the outer cylinder 3, respectively. A solenoid valve 8 is fixedly installed in the middle of both the discharge pipe 6 and the outlet pipe 7. The solenoid valve 8 is electrically connected to an external relay. The discharge pipe 6 and outlet pipe 7 at the bottom of the outer cylinder 3 are used to discharge solid particles and separated liquid, respectively. The solenoid valve 8 in the middle is electrically connected to an external relay, allowing precise control of its opening and closing. When the solid particles in the filter cartridge 5 accumulate to a set amount, the relay triggers the solenoid valve 8 in the discharge pipe 6 to open, and the solid particles are automatically discharged under gravity. The separated liquid is then discharged stably by controlling the flow rate through the solenoid valve 8 in the outlet pipe 7. Automated and precise control of solid-liquid discharge is achieved through electrical linkage. The upper part of the gantry 2... A rotary motor 9 is installed at one end, and a rotary shaft 10 is fixedly installed on the top of the outer cylinder 3. The rotary motor 9 is connected to the top of the rotary shaft 10 through a coupling. By setting up a linkage structure between the rotary motor 9, the rotary shaft 10 and the outer cylinder 3, the rotary motor 9 drives the rotary shaft 10 to drive the outer cylinder 3 to rotate at high speed, so that the filter cartridge 5 inside the outer cylinder 3 forms a centrifugal force field. The bearing ring 19 at the bottom of the base 1 cooperates with the outer surface of the bottom of the outer cylinder 3, and the rolling connection structure between the pulley 18 on the outside of the outer cylinder 3 and the inner guide rail 15 of the gantry 2 greatly reduces the frictional resistance experienced by the outer cylinder 3 when rotating, ensuring that the outer cylinder 3 rotates smoothly, reducing vibration energy loss, thereby improving the stability and energy efficiency of the centrifugal separation process and extending the service life of the equipment.

[0027] Please see Figures 2-4The top of the gantry frame 2 is provided with an installation groove 11, and the inner side of the installation groove 11 is inlaid with sound-absorbing cotton 12. The rotary motor 9 is located on the upper end of the sound-absorbing cotton 12. The bottom of the base 1 is provided with a through hole, and a bearing ring 19 is fixedly installed inside the through hole. The bottom outer surface of the outer cylinder 3 is installed on the inner side of the bearing ring 19. By setting the installation groove 11 and the sound-absorbing cotton 12 on the top of the gantry frame 2, and installing the rotary motor 9 above the sound-absorbing cotton 12, the sound-absorbing characteristics of the sound-absorbing cotton 12 are used to absorb the noise generated by the rotary motor 9 during operation, thereby reducing the operating noise of the equipment and improving the working environment.

[0028] Fixed plates 13 are fixedly installed at both ends of the inner side of the gantry frame 2. A ring plate 14 is fixedly installed at one end of the inner side of the fixed plate 13. A guide rail 15 is provided on the inner side of the ring plate 14. Multiple mounting brackets 16 are fixedly installed in the middle of the outer surface of the outer cylinder 3. A groove 17 is provided at one end of the outer side of each mounting bracket 16. A pulley 18 is rotatably installed on the inner side of each groove 17. The multiple pulleys 18 are all located on the inner side of the guide rail 15. When the outer cylinder 3 rotates, the multiple sets of pulleys 18 move along the path of the guide rail 15 on the ring plate. The inner side of the ring plate 14 rolls, and the guide rail 15 on the inner side of the ring plate 14 and the pulley 18 on the mounting bracket 16 in the middle of the outer cylinder 3 form a rolling pair structure. When the outer cylinder 3 rotates, the pulley 18 rolls along the path of the guide rail 15, which transforms the traditional sliding friction into rolling friction, thereby reducing the rotational resistance of the outer cylinder 3. At the same time, the guide rail 15 provides precise guidance for the pulley 18, ensuring the stability of the centrifugal force field, enabling the equipment to operate stably at higher speeds, and significantly improving the separation efficiency and accuracy of NdFeB waste.

[0029] Working principle: In actual use, the NdFeB waste mixture is first injected into the filter cylinder 5 through the feed pipe 4. Then, the rotary motor 9 is started. The rotary motor 9 drives the rotary shaft 10 to rotate through the coupling, thereby driving the outer cylinder 3 and the inner filter cylinder 5 to rotate at high speed, forming a centrifugal force field.

[0030] Under the action of centrifugal force, the solid particles in the mixture are forcefully thrown towards the inner wall of the filter cylinder 5. The particles are trapped because they cannot pass through the filter holes and adhere to the inner side of the filter cylinder 5. The liquid flows outward through the filter holes, enters the gap between the outer cylinder 3 and the filter cylinder 5, and finally converges to the bottom of the outer cylinder 3 and is discharged through the discharge pipe 7 to complete the liquid separation.

[0031] After the solid particles in the filter cartridge 5 have accumulated to a certain extent, the rotary motor 9 is turned off and the solenoid valve 8 of the discharge pipe 6 is opened. The trapped solid particles are discharged from the discharge pipe 6 under the action of gravity, realizing the periodic operation of solid-liquid separation.

[0032] During this process, the pulleys 18 on the inner side of the gantry 2 roll along the guide rail 15, and together with the bearing ring 19 at the bottom of the base 1, provide stable rotational support for the outer cylinder 3, reducing rotational resistance and vibration. The sound-absorbing cotton 12 effectively absorbs the noise generated by the rotating motor 9 during operation, reducing the operating noise of the equipment and ensuring that the entire separation process is carried out efficiently, stably and with low noise.

Claims

1. A neodymium iron boron waste extraction and separation device, comprising a base (1), characterized in that: A gantry frame (2) is fixedly installed on the top of the base (1). An outer cylinder (3) is provided on the inner side of the gantry frame (2). A filter cylinder (5) is fixedly installed inside the outer cylinder (3). A feed pipe (4) is fixedly installed on the upper side of the filter cylinder (5). The feed pipe (4) extends through to the outside of the outer cylinder (3). A discharge pipe (6) and a discharge pipe (7) are fixedly installed on the bottom and the outer side of the bottom of the outer cylinder (3), respectively. A solenoid valve (8) is fixedly installed in the middle of both the discharge pipe (6) and the discharge pipe (7). The solenoid valve (8) is electrically connected to an external relay. A rotary motor (9) is installed on the upper end of the gantry frame (2). A rotating shaft (10) is fixedly installed on the top of the outer cylinder (3). The rotary motor (9) is connected to the top of the rotating shaft (10) through a coupling.

2. The NdFeB waste extraction and separation device according to claim 1, characterized in that: The top of the gantry frame (2) is provided with an installation groove (11), and the inner side of the installation groove (11) is inlaid with sound-absorbing cotton (12). The rotary motor (9) is located at the upper end of the sound-absorbing cotton (12).

3. The NdFeB waste extraction and separation device according to claim 1, characterized in that: The base (1) has a through hole at its bottom and a bearing ring (19) is fixedly installed inside the through hole. The bottom outer surface of the outer cylinder (3) is installed on the inner side of the bearing ring (19).

4. The NdFeB waste extraction and separation device according to claim 1, characterized in that: The gantry frame (2) has fixed plates (13) fixedly installed at both ends of its inner side. A ring plate (14) is fixedly installed at one end of the inner side of the fixed plate (13). A guide rail (15) is provided on the inner side of the ring plate (14).

5. The NdFeB waste extraction and separation device according to claim 4, characterized in that: Multiple mounting brackets (16) are fixedly installed on the middle of the outer surface of the outer cylinder (3). Each of the multiple mounting brackets (16) has a groove (17) on one side of its outer side, and a pulley (18) is rotatably installed on the inner side of each groove (17).

6. The NdFeB waste extraction and separation device according to claim 5, characterized in that: Multiple pulleys (18) are located on the inner side of the guide rail (15). When the outer cylinder (3) rotates, multiple sets of pulleys (18) roll along the path of the guide rail (15) on the inner side of the ring plate (14).

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