Smelting equipment with tail gas treatment for rare earth metal production

Abstract

The application discloses a smelting equipment with tail gas treatment for rare earth metal production and belongs to the technical field of rare earth metal smelting, which comprises a left base, a group of portal frames arranged in parallel on the outer side of the top end of the left base, and a motor arranged on the left side of the left base. The motor is started to drive the main shaft to rotate clockwise, and the rotating shaft is driven to rotate under the action of power transmission. Under the action of the ratchet wheel, the upper ratchet wheel assembly starts to rotate, and the outer rotating fan blade rotates, thereby rotatingly treating the tail gas generated in the rare earth metal production process. The metal substances in the tail gas are adsorbed on the inner wall of the magnetic smoke extraction cylinder by magnetic force, and then the motor is started to make the magnetic smoke extraction cylinder reverse rotate counterclockwise. Under the action of the ratchet wheel, the lower ratchet wheel assembly starts to rotate, the rotating cleaning rod is driven to rotate, the inner wall of the magnetic smoke extraction cylinder is cleaned and scraped, the metal substances in the tail gas are scraped off, and therefore, the substances in the tail gas are effectively recovered, and the waste of resources is avoided.

Description

Technical Field

[0001] This invention belongs to the field of rare earth metal smelting technology, specifically relating to a smelting equipment for rare earth metal production with tail gas treatment. Background Technology

[0002] Rare earth elements, as a group of metallic elements with unique electronic layer structures, exhibit irreplaceable superior comprehensive magnetic, optical, and electrical properties. Their magnetic properties are characterized by high magnetic energy levels and coercivity, making them a core component in the manufacture of high-performance permanent magnet materials. Their optical properties are reflected in their broad-spectrum luminescence characteristics, which can be used in key optical devices such as laser crystals and fluorescent materials. Their electrical properties include excellent conductivity and superconductivity, playing an irreplaceable role in the field of electronic information. These properties make them exhibit significant value in industrial production, demonstrating the ability to achieve great results with minimal effort. By adding trace amounts (usually only grams or even milligrams per ton of material), they can significantly improve product performance (such as increasing alloy strength and enhancing material corrosion resistance), expand product varieties (developing new products such as high-temperature superconducting materials and precision optical components), and increase production efficiency (shortening smelting cycles and reducing energy consumption losses).

[0003] A rare earth metal production smelting equipment with tail gas treatment, announced under CN110983042A, uses an electric furnace motor and reducer to drive the trunnion and furnace body to rotate downwards along a rotating frame, thereby discharging the slag and molten rare earth metal floating on the upper surface from the discharge port, improving the practicality of the smelting furnace. The movable hood is slidably connected to the guide rail by a combination of a power pulley and a driven pulley, allowing the movable hood to move away from or merge with the fixed hood. It is suitable for large-scale rare earth metal smelting, facilitating maintenance personnel to inspect and maintain the interior of the hood. The use of asbestos mesh can extend the service life of both the fixed and movable hoods. However, the rare earth smelting flue gas contains high-value metal dust, which cannot be effectively recovered, resulting in resource waste. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a smelting equipment for rare earth metal production with tail gas treatment, thus solving the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention provides a smelting equipment for rare earth metal production with tail gas treatment, comprising a left base and a set of gantry frames arranged in parallel on the outer side of the top of the left base. A motor is disposed on the left side of the left base, and a fixed cover is fixedly installed on the top of the gantry frames. A recovery device is assembled on the inner wall of the fixed cover. The recovery device includes a main shaft fixedly connected to the output end of the motor, a driven shaft passing through and rotatably connected to the gantry frames, and an exhaust port connected to the bottom of the smoke outlet. A pulley is assembled on the left side of the main shaft, and a pulley is assembled on the left side of the driven shaft. Second, the first pulley and the second pulley are connected by a belt drive. A bevel gear is installed on the side of the driven shaft away from the second pulley. A magnetic smoke extractor is connected to the bottom of the exhaust port. A fixing block is fixedly connected to the bottom of the inner wall of the magnetic smoke extractor. A rotating shaft is rotatably connected through the middle of the fixing block. A bevel gear is installed at the bottom of the rotating shaft. A ratchet assembly is installed on the upper part of the rotating shaft. A ratchet assembly is installed on the lower part of the rotating shaft. A rotating fan blade is provided on the outer side of the upper ratchet assembly. A rotating cleaning rod is provided on the outer side of the lower ratchet assembly.

[0006] Preferably, a movable cover is slidably connected to the top of the gantry, and asbestos mesh is provided on the inner walls of the movable cover and the fixed cover. A smoke outlet is provided at the top of the fixed cover, and a connecting pipe is fixedly connected to the top of the smoke outlet. The left end of the connecting pipe is fixedly connected to the output end of the suction fan, and a cyclone dust collector is fixedly connected to the input end of the suction fan. A rotating shaft passes through and rotates on the upper side of the left base, and an electric furnace is mounted in the middle of the rotating shaft. A right base passes through and rotates on the right side of the rotating shaft.

[0007] Preferably, the ratchet assembly includes a turntable mounted in the middle of the rotating shaft, a rotating rod fixedly mounted on the outside of the rotating shaft, a positioning block fixedly connected to the inner wall of the turntable, a hinge shaft fixedly mounted on the surface of the turntable, a limit block hinged in the middle of the hinge shaft, and a spring fixedly mounted on the right side of the limit block.

[0008] Preferably, the two ratchet assemblies have opposite transmission directions, and a cleaning brush is provided on the side of the rotating cleaning rod facing the inner wall of the magnetic smoke extractor. The first bevel gear and the second bevel gear mesh with each other.

[0009] Preferably, the top of the fixed cover is equipped with a striking device for striking impurities.

[0010] Preferably, the striking device includes a striking assembly fixedly mounted on the top of the fixed cover, a mounting block fixedly mounted on the top of the fixed cover, and a pulley three mounted on the right side of the driven shaft. A central shaft passes through and rotates through the middle of the mounting block. A bevel gear three is mounted on the left side of the central shaft, and a pulley four is mounted on the right side of the central shaft. The pulley three and pulley four are connected by a transmission belt. The striking assembly includes a drive shaft passing through and rotating through the middle of the mounting shell. A convex gear is mounted on the left side of the drive shaft, a transmission gear is mounted in the middle of the drive shaft, and a bevel gear four is mounted on the right side of the drive shaft. A mounting plate is fixedly mounted on the inner wall of the mounting shell. A sliding cylinder passes through and slides through the middle of the mounting plate. A striking block is fixedly mounted at the bottom of the sliding cylinder, and a spring two is fixedly mounted on the top of the striking block.

[0011] Preferably, both the movable cover and the fixed cover are provided with a striking component at their tops, the two striking components are connected by a transmission gear, and the bevel gear three and the bevel gear four mesh with each other.

[0012] Preferably, a shaking device for shaking the electric furnace is installed on the right side of the left base.

[0013] Preferably, the shaking device includes a power shaft fixedly installed on the motor output shaft, a circular half-tooth rack fixedly installed on the inner wall of the shaft, a limiting rod fixedly installed on the outer side of the shaft, and a stop block fixedly installed on the right side of the left base. A half-tooth gear is assembled on the left side of the power shaft, and a torsion spring is fixedly installed on the left side of the half-tooth gear.

[0014] Preferably, the semi-tooth gear meshes with the circular semi-tooth rack, and the length of the limiting rod matches the stop block.

[0015] The advantages of this application are: (1) This application starts the motor, which drives the main shaft to rotate clockwise. Under the action of power transmission, the rotating shaft rotates. Under the action of the ratchet, the upper ratchet assembly starts to rotate, and the outer rotating fan blades rotate accordingly, treating the exhaust gas generated during the rare earth metal production process. The metal substances in the exhaust gas are magnetically attracted to the inner wall of the magnetic smoke extractor. Then, the motor is started to rotate it counterclockwise. Under the action of the ratchet, the lower ratchet assembly starts to rotate, driving the rotating cleaning rod to clean and scrape the inner wall of the magnetic smoke extractor, scraping off the metal substances in the exhaust gas, thereby effectively recovering the substances in the exhaust gas and avoiding waste of resources.

[0016] (2) When the driven shaft rotates, the convex gear on the outside of the transmission shaft is driven to rotate through power transmission. During the rotation of the convex gear, its protruding part will strike the sliding cylinder, causing the sliding cylinder to reciprocate under the action of the second spring, and then strike the fixed cover. This can effectively strike and clean the asbestos mesh, and extend the service life of the fixed cover and the movable cover.

[0017] (3) The starting motor of this application rotates, which in turn drives the power shaft to rotate, and the power shaft drives the half-tooth gear to rotate. Under the meshing action of the half-tooth gear and the circular half-tooth rack, the rotating shaft is driven to rotate, and the rotating shaft drives the electric furnace to rotate. When the half-tooth gear and the circular half-tooth rack are not meshed, the circular half-tooth rack is reset under the action of the torsion spring, which causes the electric furnace to shake. When rare earth metal smelting, the shaking motion of the electric furnace can make the internal materials fully mixed, improve the reaction efficiency, ensure that the rare earth metal smelting process is more uniform, and thus improve the smelting quality and product purity. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall appearance and structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall appearance and structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the overall appearance and structure of the present invention. Figure 3 ; Figure 4 This is a schematic diagram of the recycling device structure of the present invention. Figure 1 ; Figure 5 This is a schematic diagram of the recycling device structure of the present invention. Figure 2 ; Figure 6 This is a schematic diagram of the recycling device structure of the present invention. Figure 3 ; Figure 7 This is a schematic diagram of the striking device structure of the present invention. Figure 1 ; Figure 8 This is a schematic diagram of the striking device structure of the present invention. Figure 2 ; Figure 9 This is a schematic diagram of the shaking device structure of the present invention. Figure 1 ; Figure 10 This is a schematic diagram of the shaking device structure of the present invention. Figure 2 .

[0019] Explanation of key figure labels: 100. Gantry; 200. Fixed cover; 300. Movable cover; 400. Smoke outlet; 500. Connecting pipe; 600. Fan; 700. Cyclone dust collector; 800. Asbestos mesh; 900. Right base; 1000. Rotating shaft; 1100. Electric furnace; 1200. Left base; 1300. Motor; 1400. Recycling device; 1401. Main shaft; 1402. Pulley 1; 1403. Pulley 2; 1404. Belt; 1405. Driven shaft; 1406. Bevel gear 1; 1407. Bevel gear 2; 1408. Rotating shaft; 1409. Fixing block; 1410. Rotating fan blade; 1411. Rotating cleaning rod; 1412. Rotating rod; 1413. Positioning block; 1414. Hinge shaft; 1415. Limiting block; 1416. Spring 1; 1417. Magnetic smoke extractor; 1418. Exhaust port; 1419. Turntable; 1500. Striking device; 1501. Pulley three; 1502. Pulley four; 1503. Drive belt; 1504. Mounting block; 1505. Intermediate shaft; 1506. Bevel gear three; 1507. Bevel gear four; 1508. Drive shaft; 1509. Drive gear; 1510. Convex gear; 1511. Mounting housing; 1512. Mounting plate; 1513. Sliding cylinder; 1514. Striking block; 1515. Spring two; 1600, Shaking device; 1602, Limiting rod; 1603, Stop block; 1604, Power shaft; 1605, Half-tooth gear; 1606, Circular half-tooth rack; 1607, Torsion spring. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative effort should fall within the scope of protection of the present application.

[0021] Example 1, as Figures 1-6The diagram illustrates a smelting equipment for rare earth metal production with tail gas treatment. It includes a left base 1200 and a set of gantry frames 100 arranged parallel to each other on the outer top of the left base 1200. A movable hood 300 is slidably connected to the top of the gantry frames 100, allowing for horizontal opening and closing for easy material handling and equipment maintenance. Asbestos mesh 800 is installed on the inner walls of the movable hood 300 and the fixed hood 200, providing primary filtration to block high-temperature splashes and initially absorb dust particles. A smoke outlet 400 is located at the top of the fixed hood 200, forming a closed smelting space together with the fixed hood 200. A connecting pipe 500 is fixedly connected to the top of the smoke outlet 400, with its left end fixedly connected to the output end of a suction fan 600. The suction fan 600... A cyclone dust collector 700 is fixedly connected to the inlet. After purification by the cyclone dust collector 700, the gas is discharged from the top, while solid particles are collected in the bottom ash hopper. A rotating shaft 1000 passes through and rotates through the upper side of the left base 1200. An electric furnace 1100 is installed in the middle of the rotating shaft 1000. A right base 900 passes through and rotates through the right side of the rotating shaft 1000. A motor 1300 is installed on the left side of the left base 1200. A fixed cover 200 is fixedly installed on the top of the gantry 100. A recovery device 1400 is installed on the inner wall of the fixed cover 200. The recovery device 1400 includes a main shaft 1401 fixedly connected to the output end of the motor 1300, a driven shaft 1405 passing through and rotatably connected to the gantry 100, and an exhaust port 1418 connected to the bottom of the smoke outlet 400. A pulley 1402 is mounted on the left side of shaft 1401, and a pulley 1403 is mounted on the left side of driven shaft 1405. Pulleys 1402 and 1403 are connected by a belt 1404. A bevel gear 1406 is mounted on the side of driven shaft 1405 away from pulley 1403. A magnetic smoke extractor 1417 is connected to the bottom of exhaust port 1418. A fixing block 1409 is fixedly connected to the bottom of the inner wall of magnetic smoke extractor 1417. A rotating shaft 1408 is rotatably connected through the middle of fixing block 1409. A bevel gear 1407 is mounted at the bottom of rotating shaft 1408. A ratchet assembly is mounted on the upper and lower parts of rotating shaft 1408. A [missing information - likely a device or component] is provided on the outer side of the upper ratchet assembly. The rotating fan blade 1410 creates a localized negative pressure within the magnetic smoke extraction cylinder 1417, which, in conjunction with the suction fan 600, enhances the exhaust gas extraction effect. A rotating cleaning rod 1411 is located on the outer side of the lower ratchet assembly. The ratchet assembly includes a turntable 1419 mounted in the middle of the rotating shaft 1408 and a rotating rod 1412 fixedly mounted on the outer side of the rotating shaft 1408. A positioning block 1413 is fixedly connected to the inner wall of the turntable 1419, and a hinge shaft 1414 is fixedly mounted on the surface of the turntable 1419. A limit block 1415 is hinged to the middle of the hinge shaft 1414, and a spring 1416 is fixedly mounted on the right side of the limit block 1415. The two ratchet assemblies have opposite transmission directions. A cleaning brush is located on the side of the rotating cleaning rod 1411 facing the inner wall of the magnetic smoke extraction cylinder 1417.It can remove metal impurities adsorbed on the inner wall of the magnetic smoke extractor 1417 in real time. Bevel gear one 1406 and bevel gear two 1407 mesh with each other.

[0022] In practical use, the above-mentioned equipment is first placed in the electric furnace 1100, and the motor 1300 is started. The motor 1300 drives the main shaft 1401 to rotate clockwise. The pulley 1402 on the main shaft 1401 drives the pulley 1403 to rotate through the belt 1404, which in turn causes the driven shaft 1405 to rotate. The bevel gear 1406 on the driven shaft 1405 meshes with the bevel gear 1407 at the bottom of the rotating shaft 1408, causing the rotating shaft 1408 to rotate. Under the action of the ratchet assembly, the rotating rod 1412 of the upper ratchet assembly drives the rotating fan blade 1410 to rotate, treating the exhaust gas generated during the smelting process of the electric furnace 1100. Metal substances in the exhaust gas are attracted to the inner wall of the magnetic smoke extractor 1417 under its magnetic force. After smelting for a period of time, the motor 1300 is started to rotate counterclockwise. At this time, the rotating shaft 1408 also rotates in reverse. Under the action of the ratchet assembly, the rotating rod 1412 of the lower ratchet assembly drives the rotating cleaning rod 1411 to rotate. The cleaning brush on the cleaning rod 1411 cleans and scrapes the inner wall of the magnetic smoke extractor 1417, scraping off the metal material adsorbed on the inner wall. The scraped-off metal material can be recycled and reused, avoiding resource waste. During the smelting process, the suction fan 600 is started, and the exhaust gas generated in the electric furnace 1100 is sucked into the cyclone dust collector 700 through the smoke outlet 400 and connecting pipe 500 for preliminary dust removal. The treated exhaust gas then enters the subsequent treatment stage, reducing the impact of impurities in the exhaust gas on the recovery device 1400.

[0023] Example 2, as Figures 1-8The diagram illustrates a smelting equipment for rare earth metal production with tail gas treatment. A striking device 1500 for knocking down impurities is mounted on the top of a fixed cover 200. This device achieves automatic cleaning of the asbestos mesh 800 via mechanical transmission. Both the movable cover 300 and the fixed cover 200 have striking components on their tops. The striking device 1500 includes a striking component fixedly mounted on the top of the fixed cover 200, a mounting block 1504 fixedly mounted on the top of the fixed cover 200, and a pulley 1501 mounted on the right side of a driven shaft 1405. An intermediate shaft 1505 passes through and rotates through the center of the mounting block 1504. A bevel gear 1506 is mounted on the left side of the intermediate shaft 1505, and a pulley 1502 is mounted on the right side of the intermediate shaft 1505. The pulleys 1501 and 1502 are connected by a transmission belt 1503. The assembly includes a drive shaft 1508 that passes through and rotatably connects to the middle of a mounting housing 1511. A convex gear 1510 is mounted on the left side of the drive shaft 1508. When the shaft rotates, its irregular profile periodically impacts the sliding cylinder 1513. A transmission gear 1509 is mounted in the middle of the drive shaft 1508. The two striking components are connected by transmission gear 1509. A bevel gear 1507 is mounted on the right side of the drive shaft 1508, which converts horizontal rotation into vertical power. Bevel gear 1506 and bevel gear 1507 mesh with each other. A mounting plate 1512 is fixedly mounted on the inner wall of the mounting housing 1511. A sliding cylinder 1513 passes through and slides in the middle of the mounting plate 1512. A striking block 1514 is fixedly mounted on the bottom of the sliding cylinder 1513. A spring 1515 is fixedly mounted on the top of the striking block 1514.

[0024] In the specific use of the above-mentioned equipment, when the driven shaft 1405 begins to rotate stably under the driving force of the motor, the pulley three 1501 coaxially mounted on its right end will synchronously drive the pulley four 1502 to rotate through the tensioned transmission belt 1503. The pulley four 1502 is fixed to the intermediate shaft 1505 by a key connection, so it will directly drive the intermediate shaft 1505 to make circumferential motion along its axis. The bevel gear three 1506 installed at the top of the intermediate shaft 1505 and the bevel gear four 1507 at the bottom of the transmission shaft 1508 form an orthogonal meshing transmission pair. Through the tooth surface contact between the gears, the horizontal rotational motion is converted into vertical power, thereby driving the transmission shaft 1508 to rotate stably at a set speed. A convex gear 1510, fixed by a key in the middle section of the drive shaft 1508, rotates synchronously with the shaft. The irregular profile of this gear causes its outer circumference to periodically contact and collide with the end of the sliding cylinder 1513 during rotation. Under the combined action of the impact force and the elastic force of the return spring 1515, the sliding cylinder 1513 performs high-frequency reciprocating linear motion along the guide sleeve. This, in turn, drives the striking block 1514 to generate regular striking vibrations against the outer wall of the fixed cover 200 via a linkage mechanism. This continuous mechanical vibration effectively removes dust particles and oxide impurities adhering to the surface of the asbestos mesh 800, preventing filter material clogging and resulting in reduced ventilation efficiency, and significantly extending the maintenance cycle and overall service life of the fixed cover 200 and the movable cover 300.

[0025] Example 3, as Figures 1-10 The diagram shows a smelting equipment for rare earth metal production with tail gas treatment. A shaking device 1600 for shaking an electric furnace 1100 is mounted on the right side of the left base 1200. This device achieves periodic shaking of the electric furnace 1100 through the synergistic effect of intermittent transmission and elastic reset. The shaking device 1600 includes a power shaft 1604 fixedly mounted on the output shaft of a motor 1300, a circular semi-tooth rack 1606 fixedly mounted on the inner wall of a rotating shaft 1000, a limiting rod 1602 fixedly mounted on the outer side of the rotating shaft 1000, and a stop block 1603 fixedly mounted on the right side of the left base 1200. The length of the limiting rod 1602 matches that of the stop block 1603. A semi-tooth gear 1605 is mounted on the left side of the power shaft 1604. The semi-tooth gear 1605 meshes with the circular semi-tooth rack 1606, forming a non-fully meshing pair. A torsion spring 1607 is fixedly mounted on the left side of the semi-tooth gear 1605.

[0026] In practical use, if it is necessary to thoroughly mix the materials within the electric furnace 1100 to improve reaction efficiency, the motor 1300 can be started to rotate, driving the power shaft 1604 to rotate. The power shaft 1604 drives the semi-gear 1605 to rotate, which meshes with the circular semi-gear rack 1606, driving the rotating shaft 1000 to rotate. The rotating shaft 1000 then drives the electric furnace 1100 to rotate. When the semi-gear 1605 and the circular semi-gear rack 1606 are not meshed, the circular semi-gear rack 1606 resets under the action of the torsion spring 1607, causing the electric furnace 1100 to shake, ensuring thorough mixing of the internal materials. This ensures a more uniform rare earth metal smelting process, improving smelting quality and product purity. After smelting is completed, the motor 1300 and the suction fan 600 are shut down. The recovered metal materials are further processed, and the smelting equipment is cleaned and maintained for future use.

[0027] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A smelting apparatus for rare earth metal production with tail gas treatment, comprising a left base and a set of gantry frames arranged in parallel on the outer side of the top of the left base, characterized in that, A motor is located on the left side of the left base. A fixed cover is fixedly installed on the top of the gantry. A recycling device is installed on the inner wall of the fixed cover. The recycling device includes a main shaft fixedly connected to the output end of the motor, a driven shaft passing through and rotatably connected to the gantry, and an exhaust port connected to the bottom of the smoke outlet. A pulley one is installed on the left side of the main shaft, and a pulley two is installed on the left side of the driven shaft. The pulley one and pulley two are connected by belt drive. A bevel gear one is installed on the side of the driven shaft away from pulley two. A magnetic smoke extractor is connected to the bottom of the exhaust port. A fixed block is fixedly connected to the bottom of the inner wall of the magnetic smoke extractor. A rotating shaft passes through and rotatably connects to the middle of the fixed block. A bevel gear two is installed at the bottom of the rotating shaft. A ratchet assembly is installed on the upper part of the rotating shaft. A ratchet assembly two is installed on the lower part of the upper rotating shaft. A rotating fan blade is provided on the outer side of the lower ratchet assembly. A rotating cleaning rod is provided on the outer side of the ratchet assembly two.

2. The smelting equipment for rare earth metal production with tail gas treatment according to claim 1, characterized in that, A movable cover is slidably connected to the top of the gantry. The inner walls of the movable cover and the fixed cover are provided with asbestos mesh. A smoke outlet is provided at the top of the fixed cover. A connecting pipe is fixedly connected to the top of the smoke outlet. The left end of the connecting pipe is fixedly connected to the output end of the suction fan. A cyclone dust collector is fixedly connected to the input end of the suction fan. A rotating shaft passes through and rotates on the upper side of the left base. An electric furnace is mounted in the middle of the rotating shaft. A right base passes through and rotates on the right side of the rotating shaft.

3. A smelting equipment for rare earth metal production with tail gas treatment according to claim 1, characterized in that, The ratchet assembly includes a turntable mounted in the middle of a rotating shaft and a rotating rod fixedly mounted on the outside of the rotating shaft. A positioning block is fixedly connected to the inner wall of the turntable, and a hinge shaft is fixedly mounted on the surface of the turntable. A limit block is hinged to the middle of the hinge shaft, and a spring is fixedly mounted on the right side of the limit block.

4. A smelting equipment for rare earth metal production with tail gas treatment according to claim 1, characterized in that, The two ratchet assemblies have opposite transmission directions, and a cleaning brush is provided on the side of the rotating cleaning rod facing the inner wall of the magnetic smoke extractor. The first bevel gear and the second bevel gear mesh with each other.

5. A smelting equipment for rare earth metal production with tail gas treatment according to claim 1, characterized in that, The top of the fixed cover is equipped with a striking device for striking impurities.

6. A smelting equipment for rare earth metal production with tail gas treatment according to claim 5, characterized in that, The striking device includes a striking assembly fixedly mounted on the top of a fixed cover, a mounting block fixedly mounted on the top of the fixed cover, and a pulley three mounted on the right side of the driven shaft. A central shaft passes through and rotates through the middle of the mounting block. A bevel gear three is mounted on the left side of the central shaft, and a pulley four is mounted on the right side of the central shaft. The pulley three and pulley four are connected by a transmission belt. The striking assembly includes a drive shaft passing through and rotating through the middle of a mounting shell. A convex gear is mounted on the left side of the drive shaft, a drive gear is mounted in the middle of the drive shaft, and a bevel gear four is mounted on the right side of the drive shaft. A mounting plate is fixedly mounted on the inner wall of the mounting shell. A sliding cylinder passes through and slides through the middle of the mounting plate. A striking block is fixedly mounted at the bottom of the sliding cylinder, and a spring two is fixedly mounted on the top of the striking block.

7. A smelting equipment for rare earth metal production with tail gas treatment according to claim 6, characterized in that, Both the movable cover and the fixed cover are equipped with striking components on their tops. The two striking components are connected by a transmission gear, and the bevel gear three and the bevel gear four mesh with each other.

8. A smelting equipment for rare earth metal production with tail gas treatment according to claim 1, characterized in that, The right side of the left base is equipped with a shaking device for shaking the electric furnace.

9. A smelting equipment for rare earth metal production with tail gas treatment according to claim 8, characterized in that, The shaking device includes a power shaft fixedly installed on the output shaft of the motor, a circular half-tooth rack fixedly installed on the inner wall of the shaft, a limit rod fixedly installed on the outer side of the shaft, and a stop block fixedly installed on the right side of the left base. A half-tooth gear is assembled on the left side of the power shaft, and a torsion spring is fixedly installed on the left side of the half-tooth gear.

10. A smelting equipment for rare earth metal production with tail gas treatment according to claim 9, characterized in that, The semi-tooth gear meshes with the circular semi-tooth rack, and the length of the limiting rod matches the stop block.

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