A device for high-temperature melting and spheroidization of ceramic particles

Abstract

This invention discloses a high-temperature melting and spheroidizing device for ceramic particles, specifically relating to the field of ceramic particle production technology. It includes a working frame, with a spheroidizing chamber fixedly installed on the top surface of the frame and an operating shell fixedly installed on the bottom surface of the spheroidizing chamber. A high-temperature generating component for high-temperature melting and spheroidizing ceramic particles is provided on the top surface of the spheroidizing chamber. A vibration component for auxiliary dispersion of the spheroidized ceramic particles is provided on one side of the operating shell. Through the synergistic action of the feeding hole, feeding shell, feeding hopper, first reduction motor, conveying column, spiral blades, and heating wire, forced dispersion and preheating of the ceramic particles are achieved. The rotating spiral blades propel and agitate the particles, breaking up agglomerated particles. The heating wires preheat and remove moisture, preventing particles from cracking due to thermal shock in the high-temperature zone and avoiding adhesion of multiple particles in the molten state, thus improving particle dispersibility and subsequent spheroidizing uniformity.

Description

Technical Field

[0001] This invention relates to the field of ceramic particle production technology, and more specifically to a device for high-temperature melting and spheroidizing ceramic particles. Background Technology

[0002] High-temperature melting and spheroidization of ceramic particles is a core process for preparing ceramic powders with high sphericity and high flowability. It is widely used in high-end manufacturing fields such as 3D printing, aerospace thermal barrier coatings, biomedical ceramics and electronic packaging. To transform irregularly shaped ceramic particles into spherical microparticles with smooth surfaces and high sphericity, common technical routes mainly include high-temperature flame melting and spheroidization, plasma spheroidization, and melt droplet spraying and spheroidization.

[0003] In existing technologies, high-temperature melting spheroidizing devices have inherent defects in particle dispersion and thermal field uniformity. In flame spheroidizing, the heat source is usually a horizontally or vertically arranged burner. The flame jet has a distinct central high-temperature region and an edge low-temperature region. When irregularly shaped ceramic particles enter the flame region through free fall or airflow, the coupling effect between the particle trajectory and the temperature field is poor. Some particles deviate from the high-temperature core region, resulting in incomplete melting or failure to be spheroidized at all. In order to cover the entire flame cross section, existing devices usually adopt a structure design of dispersing nozzles or multi-point feeding. However, the particle distribution in the flame is extremely uneven, and a large number of particles agglomerate and fall, causing the particles to stick and agglomerate in the molten state. Even if a carrier gas dispersion conveying method is used, the diffusion angle of the particles after leaving the powder feeding gun nozzle is significantly affected by the airflow turbulence, making it difficult to achieve independent dispersion of individual particles into the flame or plasma jet, causing melting collision and adhesion, which seriously reduces the yield of a single furnace and batch stability. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a high-temperature melting and spheroidizing device for ceramic particles, thereby solving the problems mentioned in the background section.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution: A ceramic particle high-temperature melting and spheroidizing device includes a working frame, a spheroidizing chamber fixedly installed on the top surface of the working frame, and an operating shell fixedly installed on the bottom surface of the spheroidizing chamber; a high-temperature generating component for high-temperature melting and spheroidizing ceramic particles is provided on the top surface of the spheroidizing chamber; a vibration component for auxiliary dispersion of the spheroidized ceramic particles is provided on one side of the operating shell; collection components for collecting light dust or insufficiently spheroidized fine powder generated during the spheroidizing process are provided on both sides of the spheroidizing chamber; and a dispersing component is provided on one side of the spheroidizing chamber for dispersing agglomerated ceramic particles. The dispersion preheating process includes: a feeding hole, which is located on one side of the spheroidizing chamber; a feeding shell is fixedly installed on one side of the spheroidizing chamber, the feeding shell being positioned corresponding to the feeding hole; a feeding hopper is fixedly installed on the top surface of the feeding shell; a first reduction motor is fixedly installed on one side of the feeding shell; a conveying column is provided inside the feeding shell; a spiral blade is fixedly installed on the outer circular wall of the conveying column; a connecting hole is provided on one side of the feeding shell; the conveying column is movably connected to the connecting hole; and the conveying column is fixedly installed to the drive shaft of the first reduction motor.

[0006] By adopting the above technical solution, and through the spiral blades, when spheroidizing ceramic particles, the ceramic particles to be spheroidized are first poured into the feed shell through the feeding hopper. Then, by using a first geared motor, the drive shaft of the first geared motor rotates, driving the conveyor column and the spiral blades to rotate. The rotation of the spiral blades propels the ceramic particles, and at the same time, the agitation of the particles by the spiral blades disperses ceramic particles that have agglomerated due to humidity or static electricity, thus facilitating the dispersion of ceramic particles and preventing multiple particles from adhering together during the subsequent high-temperature melting process, which would affect the spheroidizing effect. After the ceramic particles are conveyed by the spiral blades through the inside of the feed shell, they enter the inside of the spheroidizing chamber, where a high-temperature generating component is used to facilitate high-temperature melting and spheroidizing of the ceramic particles.

[0007] Preferably, the high-temperature generating component includes: a heat insulation mesh fixedly installed on the top surface of the spheroidizing chamber; a high-temperature generator fixedly installed on the top surface of the working frame; air inlets on both sides of the operating shell; a diversion pipe inside the working frame fixedly connected to the air inlets; a fixing pipe fixedly connected to the inner circular wall of the diversion pipe; the fixing pipe fixedly connected to the air outlet of the high-temperature generator; guide plates fixedly installed on both sides of the interior of the spheroidizing chamber; discharge holes on both sides of the spheroidizing chamber; a material support plate movably fitted inside the spheroidizing chamber; and several ventilation holes evenly arranged on the top surface of the material support plate.

[0008] By employing the above technical solution, and through the high-temperature generator, ceramic particles, after entering the spheroidizing chamber through the feed shell, fall onto the top surface of the support plate. The high-temperature generator then generates a high-temperature airflow or plasma jet, which is introduced into the operating shell through fixed and branch pipes. Inside the operating shell, the high-temperature airflow blows upwards, passing through vents on the support plate to reach the top of the support plate, heating the ceramic particles and melting their surfaces. Under surface tension, the particles gradually spheroidize. Because two inclined guide plates are positioned inside the spheroidizing chamber, a triangular heat field concentration area is formed, where the high-temperature airflow creates vortices, extending the residence time of the particles in the high-temperature zone and ensuring complete melting. Some incompletely spheroidized fine powder or lightweight particles are carried by the airflow, rising through the gaps between the guide plates to the insulation mesh, then falling and sliding down the inclined surface of the guide plates, and being discharged through the discharge holes, thus facilitating the high-temperature melting and spheroidization of the ceramic particles.

[0009] Preferably, the vibration assembly includes: a second geared motor, the second geared motor being fixedly installed on one side of the operating housing, the operating housing having an installation hole on one side, a swing column being provided inside the operating housing, the swing column being fixedly installed with the drive shaft of the second geared motor, two reciprocating columns being provided on the outer circular wall of the swing column, a limiting hole being provided on one side of the reciprocating column, the limiting hole being fixedly sleeved with the swing column.

[0010] By adopting the above technical solution, and through the reciprocating column, when ceramic particles fall onto the top surface of the support plate for sphericalization, a second geared motor drives the oscillating column and the reciprocating column to rotate, causing the reciprocating column to oscillate back and forth. When the reciprocating column rotates to an upright position, it lifts the support plate; when the oscillating column and the reciprocating column swing out of the upright position, the support plate falls. This reciprocating motion causes the support plate to vibrate. This vibration helps to disperse the ceramic particles on the support plate, preventing the particles from sticking together at high temperatures, and simultaneously promotes the movement of the sphericalized particles towards the discharge hole, avoiding accumulation that could lead to over-melting.

[0011] Preferably, the collecting assembly includes: two collecting boxes, which are respectively disposed on both sides of the spheroidizing chamber. One side of each collecting box has a discharge hole, which corresponds to the discharge hole. Fixing blocks are fixedly installed on both sides of each collecting box. A fixing hole is provided on one side of each fixing block. A threaded post is movably fitted onto the inner circular wall of the fixing hole. Two fixing grooves are respectively provided on both sides of the spheroidizing chamber. The inner circular wall of each fixing groove is threaded, and the threaded post is threadedly connected to the fixing groove.

[0012] By adopting the above technical solution, the lightweight dust or incompletely spheroidized fine powder blown up by the high-temperature airflow in the spheroidizing chamber is discharged through the discharge hole and then enters the interior of the collection box through the drop hole, thus facilitating the collection of lightweight dust and preventing environmental pollution. By loosening the threaded column, the collection box is moved, causing the fixing block to move and the collection box to be removed from the surface of the spheroidizing chamber, making it easy to pour out the collected dust.

[0013] Preferably, a plurality of mounting cylinders are fixedly installed on the inner bottom surface of the spheroidizing chamber, springs are fixedly installed on the inner bottom surface of the mounting cylinders, connecting blocks are fixedly installed on the top surface of the springs, and the connecting blocks are fixedly installed with the material support plate.

[0014] By adopting the above technical solution, and through the spring, when the reciprocating column lifts the support plate to make it vibrate, the support plate lifts upward and drives the connecting block to stretch the spring. When the reciprocating column moves away, the spring drives the connecting block and the support plate to rebound and reset, thereby increasing the vibration amplitude of the support plate and improving the dispersion effect.

[0015] Preferably, the top surface of the material receiving plate has a discharge hole, and a baffle plate is movably sleeved inside the discharge hole. A rotating column is fixedly installed on one side of the baffle plate, and a handwheel is fixedly installed on one side of the rotating column. A limit block is fixedly installed on the outer circular wall of the rotating column. A rotating hole is opened on one side of the spheroidizing chamber, and the rotating column is movably sleeved with the rotating hole. A fixing ring is fixedly installed on one side of the spheroidizing chamber, and a limit groove is opened on the inner circular wall of the fixing ring. A magnet is fixedly sleeved on the inner circular wall of the limit groove. The rotating column is movably sleeved with the fixing ring, and the limit block is movably sleeved with the limit groove.

[0016] By adopting the above technical solution, and with the addition of a baffle plate, after the ceramic particles have completed spheroidization on the top surface of the support plate, rotating the handwheel drives the rotating column, baffle plate, and limiting block to rotate, making the baffle plate perpendicular to the support plate. This removes the baffle plate's obstruction of the discharge hole. As the support plate vibrates, the spheroidized ceramic particles fall into the interior of the operating shell through the discharge hole and are subsequently discharged through the discharge pipe. The baffle plate's obstruction allows the particles to remain on the surface of the support plate for a longer period to fully spheroidize, preventing incompletely spheroidized particles from being discharged prematurely.

[0017] Preferably, a heating groove is provided on one side of the feed shell, and a heating wire is provided inside the heating groove.

[0018] By adopting the above technical solution, the heat generated by the heating wire is transferred to the inside of the feed shell through the feed shell. When the ceramic particles are conveyed inside the feed shell, the preheating by the heat can reduce the moisture in the particles and increase the initial temperature of the particles, thereby reducing the thermal shock when entering the high-temperature zone. Combined with the rotation of the spiral blades, it is easy for the particles to disperse and prevent them from sticking together.

[0019] Preferably, the bottom surface of the operating shell is provided with a circular through hole, and a discharge pipe is fixedly sleeved on the inner wall of the circular through hole.

[0020] By adopting the above technical solution, the discharge pipe is used to discharge the spheroidized ceramic particles.

[0021] In summary, the present invention has the following main beneficial effects: 1. This invention achieves forced dispersion and preheating of ceramic particles through the synergistic action of the feeding hole, feeding shell, feeding hopper, first reduction motor, conveying column, spiral blades and heating wire. The rotating spiral blades push the particles to move and stir, breaking up agglomerated particles. The heating wires preheat and remove moisture, which not only prevents the particles from cracking due to thermal shock in the high-temperature zone, but also avoids the adhesion of multiple particles in the molten state, thus improving the particle dispersion and the uniformity of subsequent spheroidization.

[0022] 2. Through the optimized design of the high-temperature generator, fixed pipe, diversion pipe, air inlet, material support plate, ventilation hole and guide plate, the present invention forms a uniform hot air flow field from bottom to top inside the spheroidizing chamber. The high-temperature air flow passes through the material support plate to heat the particles as a whole. The triangular heat field concentration area formed by the guide plate causes the air flow to generate vortices, which prolongs the residence time of the particles in the high-temperature zone, ensuring that the surface of the irregular particles is fully melted and forms highly spherical microparticles under surface tension, which significantly improves the spheroidizing yield.

[0023] 3. This invention utilizes a linkage structure consisting of a second reduction motor, a swing column, a reciprocating column, a mounting cylinder, a spring, a connecting block, and a material support plate to generate high-frequency reciprocating vibrations on the material support plate. This vibration disperses the accumulated particles, preventing them from sticking together in the molten state. Simultaneously, it promotes the rolling of particles on the plate surface, resulting in more uniform spheroidization. Furthermore, it pushes the spheroidized particles towards the discharge hole, achieving continuous production. The spring's resetting effect increases the vibration amplitude and improves the dispersion effect.

[0024] 4. This invention uses the combination of a collection box, a discharge hole, a fixing block, a threaded column, a fixing groove, and a discharge hole to collect light fine powder or insufficiently spheroidized particles carried by airflow during the spheroidization process, preventing dust from overflowing and polluting the environment. At the same time, it facilitates classified recycling and processing. The detachable connection between the threaded column and the fixing groove makes the collection box easy to disassemble and clean, improving maintenance convenience.

[0025] 5. This invention achieves controllable discharge of finished particles after spheroidization through the cooperation of a discharge hole, a baffle plate, a rotating column, a handwheel, a limiting block, a fixing ring, a limiting groove, and a magnet on a material receiving plate. The baffle plate blocks the discharge hole during spheroidization to ensure that the particles have sufficient spheroidization time. After spheroidization, rotating the handwheel opens the discharge hole, and vibration helps the finished particles to be discharged smoothly. The attraction of the magnet to the limiting block ensures the stable locking of the baffle plate in the open or closed position, preventing malfunction due to vibration. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the work frame structure of the present invention; Figure 3 This is a schematic diagram of the collection box structure of the present invention; Figure 4 This is a schematic diagram of the feed shell structure of the present invention; Figure 5 This is a schematic diagram of the heat insulation mesh structure of the present invention; Figure 6 This is a schematic diagram of the reciprocating column structure of the present invention; Figure 7 This is a schematic diagram of the mounting cylinder structure of the present invention; Figure 8 This is a schematic diagram of the barrier plate structure of the present invention; Figure 9 yes Figure 3 A schematic diagram of the partial structure of A in the middle.

[0027] Reference numerals: 1. Working frame; 2. Spheroidizing chamber; 3. Operating shell; 4. High-temperature generator; 5. Feeding hole; 6. Feeding shell; 7. Feeding hopper; 8. First geared motor; 9. Conveying column; 10. Spiral blade; 11. Heat insulation mesh; 12. Air inlet; 13. Diverter pipe; 14. Fixed pipe; 15. Material receiving plate; 16. Guide plate; 17. Discharge hole; 18. Second geared motor; 19. Mounting hole; 20. Swinging column; 21. Reciprocating column; 22. 1. Mounting cylinder; 23. Spring; 24. Connecting block; 25. Discharge hole; 26. Baffle plate; 27. Rotating column; 28. Handwheel; 29. ​​Limiting block; 30. Rotating hole; 31. Fixing ring; 32. Limiting groove; 33. Magnet; 34. Heating tank; 35. Heating wire; 36. Collection box; 37. Discharge hole; 38. Fixing block; 39. Fixing hole; 40. Threaded column; 41. Fixing groove; 42. Connecting hole; 43. Limiting hole; 44. Discharge pipe. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Example: Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 A ceramic particle high-temperature melting and spheroidizing device includes a working frame 1, a spheroidizing chamber 2 fixedly installed on the top surface of the working frame 1, an operating shell 3 fixedly installed on the bottom surface of the spheroidizing chamber 2, a dispersing component provided on one side of the spheroidizing chamber 2 for dispersing and preheating agglomerated ceramic particles, the dispersing component including a feeding hole 5, the feeding hole 5 being opened on one side of the spheroidizing chamber 2, a feeding shell 6 fixedly installed on one side of the spheroidizing chamber 2, the feeding shell 6 being positioned corresponding to the feeding hole 5, a feeding hopper 7 fixedly installed on the top surface of the feeding shell 6, a first reduction motor 8 fixedly installed on one side of the feeding shell 6, a conveying column 9 provided inside the feeding shell 6, a spiral blade 10 fixedly installed on the outer circular wall of the conveying column 9, a connecting hole 42 opened on one side of the feeding shell 6, the conveying column 9 being movably sleeved with the connecting hole 42, the conveying column 9 being fixedly installed with the drive shaft of the first reduction motor 8, a circular through hole opened on the bottom surface of the operating shell 3, and a discharge pipe 44 fixedly sleeved on the inner circular wall of the circular through hole; A heating tank 34 is provided on one side of the feed shell 6, and a heating wire 35 is provided inside the heating tank 34; When spheroidizing ceramic particles using the spiral blades 10, the ceramic particles to be spheroidized are first poured into the feed shell 6 through the feeding hopper 7. Then, the first reduction motor 8 is used, and the drive shaft of the first reduction motor 8 rotates to drive the conveying column 9 and the spiral blades 10 to rotate. The rotation of the spiral blades 10 pushes the ceramic particles to move. At the same time, the stirring of the particles by the spiral blades 10 disperses the ceramic particles that have agglomerated due to humidity or static electricity, thus facilitating the dispersion of the ceramic particles and preventing multiple particles from adhering together during the subsequent high-temperature melting process, which would affect the spheroidizing effect. After the ceramic particles are conveyed by the spiral blades 10 through the inside of the feed shell 6, they enter the inside of the spheroidizing chamber 2. Then, the high-temperature generating mechanism is used to facilitate the high-temperature melting and spheroidizing of the ceramic particles.

[0030] The heat generated by the heating wire 35 is transferred to the inside of the feed shell 6 through the feed shell 6. When the ceramic particles are conveyed inside the feed shell 6, the preheating of the heat can reduce the moisture in the particles and increase the initial temperature of the particles, thereby reducing the thermal shock when entering the high temperature zone. Combined with the rotation of the spiral blades 10, it is easy for the particles to disperse and prevent them from sticking together.

[0031] Based on the above embodiments, refer to Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 The top surface of the spheroidizing chamber 2 is provided with a high-temperature generating component for high-temperature melting and spheroidizing ceramic particles. The high-temperature generating component includes a heat insulation net 11, which is fixedly installed on the top surface of the spheroidizing chamber 2. A high-temperature generator 4 is fixedly installed on the top surface of the working frame 1. Air inlets 12 are opened on both sides of the operating shell 3. A diversion pipe 13 is provided inside the working frame 1. The diversion pipe 13 is fixedly sleeved with the air inlet 12. A fixing pipe 14 is fixedly sleeved on the inner circular wall of the diversion pipe 13. The fixing pipe 14 is fixedly sleeved with the air outlet of the high-temperature generator 4. A guide plate 16 is fixedly installed on both sides of the inside of the spheroidizing chamber 2. A discharge hole 17 is opened on both sides of the spheroidizing chamber 2. A material support plate 15 is movably sleeved inside the spheroidizing chamber 2. Several ventilation holes are evenly arranged on the top surface of the material support plate 15. Through the high-temperature generator 4, after the ceramic particles enter the spheroidizing chamber 2 through the feed shell 6, they fall onto the top surface of the support plate 15. Then, using the high-temperature generator 4, the high-temperature gas flow or plasma jet generated by the generator 4 is introduced into the operating shell 3 through the fixed pipe 14 and the diverter pipe 13. Inside the operating shell 3, the high-temperature gas flow blows upwards, passing through the vent holes on the support plate 15 to reach the top of the support plate 15, heating the ceramic particles on the support plate 15 and melting their surface. Under the action of the airflow, the particles gradually become spherical. Since the two guide plates 16 are inclined and blocked inside the spheroidizing chamber 2, a triangular heat field concentration area is formed. The high-temperature airflow forms a vortex here, which prolongs the residence time of the particles in the high-temperature zone and ensures full melting. Some of the incompletely spheroidized fine powder or light particles are carried up by the airflow and rise to the heat insulation net 11 through the gap between the guide plates 16. Then they fall and slide down the inclined surface of the guide plates 16 and are discharged through the discharge hole 17, which facilitates the high-temperature melting and spheroidization of ceramic particles.

[0032] Based on the above embodiments, refer to Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 7A vibration assembly for assisting in the dispersion of spheroidized ceramic particles is provided on one side of the operating shell 3. The vibration assembly includes a second reduction motor 18, which is fixedly installed on one side of the operating shell 3. A mounting hole 19 is provided on one side of the operating shell 3. A swing column 20 is provided inside the operating shell 3. The swing column 20 is fixedly installed with the drive shaft of the second reduction motor 18. Two reciprocating columns 21 are provided on the outer circular wall of the swing column 20. A limiting hole 43 is provided on one side of the reciprocating column 21, and the limiting hole 43 is fixedly sleeved with the swing column 20. Several mounting cylinders 22 are fixedly installed on the bottom surface of the spheroidizing chamber 2. Springs 23 are fixedly installed on the bottom surface of the mounting cylinders 22. Connecting blocks 24 are fixedly installed on the top surface of the springs 23. Connecting blocks 24 are fixedly installed with the material support plate 15. When ceramic particles fall onto the top surface of the support plate 15 for spheroidization via the reciprocating column 21, the second reduction motor 18 drives the swing column 20 and the reciprocating column 21 to rotate, causing the reciprocating column 21 to swing back and forth. When the reciprocating column 21 rotates to the upright position, it lifts the support plate 15. When the swing column 20 swings and releases the upright position, the support plate 15 falls. This process is repeated to make the support plate 15 vibrate. This vibration helps to disperse the ceramic particles on the support plate 15, preventing the particles from sticking together at high temperatures. At the same time, it promotes the movement of the spheroidized particles toward the discharge hole 25, avoiding accumulation that leads to excessive melting. When the reciprocating column 21 pushes up the support plate 15 to make it vibrate, the support plate 15 pushes up and drives the connecting block 24 to stretch the spring 23. When the reciprocating column 21 moves away, the spring 23 drives the connecting block 24 and the support plate 15 to spring back to their original positions, thereby increasing the vibration amplitude of the support plate 15 and improving the dispersion effect.

[0033] Based on the above embodiments, refer to Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 The spheroidizing chamber 2 is provided with collection components on both sides for collecting light dust or fine powder that is not fully spheroidized during the spheroidizing process. The collection components include two collection boxes 36, which are respectively located on both sides of the spheroidizing chamber 2. A discharge hole 37 is provided on one side of the collection box 36, which corresponds to the discharge hole 17. Fixing blocks 38 are fixedly installed on both sides of the collection box 36. A fixing hole 39 is provided on one side of the fixing block 38. A threaded post 40 is movably sleeved on the inner circular wall of the fixing hole 39. Two fixing grooves 41 are provided on both sides of the spheroidizing chamber 2. The inner circular wall of the fixing groove 41 is threaded, and the threaded post 40 is threadedly connected to the fixing groove 41. Light dust or fine powder that is not fully spheroidized is blown up by the high-temperature airflow in the spheroidizing chamber 2 through the collection box 36 and discharged through the discharge hole 17. It then enters the interior of the collection box 36 through the drop hole 37, which facilitates the collection of light dust and prevents environmental pollution. By loosening the threaded column 40, the collection box 36 is moved, which drives the fixing block 38 to move, so that the collection box 36 is removed from the surface of the spheroidizing chamber 2, making it easy to pour out the collected dust.

[0034] Based on the above embodiments, refer to Figure 2 , Figure 3 , Figure 5 , Figure 8 and Figure 9 The top surface of the material receiving plate 15 is provided with a discharge hole 25. A baffle plate 26 is movably sleeved inside the discharge hole 25. A rotating column 27 is fixedly installed on one side of the baffle plate 26. A handwheel 28 is fixedly installed on one side of the rotating column 27. A limit block 29 is fixedly installed on the outer circular wall of the rotating column 27. A rotating hole 30 is provided on one side of the spheroidizing chamber 2. The rotating column 27 is movably sleeved with the rotating hole 30. A fixing ring 31 is fixedly installed on one side of the spheroidizing chamber 2. A limit groove 32 is provided on the inner circular wall of the fixing ring 31. A magnet 33 is fixedly sleeved on the inner circular wall of the limit groove 32. The rotating column 27 is movably sleeved with the fixing ring 31. The limit block 29 is movably sleeved with the limit groove 32. With the baffle plate 26 in place, after the ceramic particles are spherically shaped on the top surface of the support plate 15, the rotating handwheel 28 drives the rotating column 27, the baffle plate 26 and the limiting block 29 to rotate, so that the baffle plate 26 is perpendicular to the support plate 15, thus removing the obstruction of the discharge hole 25 by the baffle plate 26. As the support plate 15 vibrates, the spherical ceramic particles fall into the interior of the operating shell 3 through the discharge hole 25, and are subsequently discharged through the discharge pipe 44. The baffle plate 26 allows the particles to remain on the surface of the support plate 15 for a longer period of time to fully spheroidize, preventing incompletely spheroidized particles from being discharged prematurely.

[0035] Working principle: Please refer to Figures 1-9 As shown, firstly, the operator pours the irregularly shaped ceramic particles to be spheroidized into the feeding hopper 7, starts the first reduction motor 8, and its drive shaft drives the conveyor column 9 and the spiral blades 10 to rotate inside the feeding shell 6. At the same time, the heating wire 35 is energized and heats up, and the heat is conducted to the inside of the feeding shell 6 through the heating tank 34 to preheat the ceramic particles (the temperature can be controlled between 150-300℃), remove the moisture adsorbed on the particle surface, and reduce the thermal shock when entering the high-temperature zone. The rotation of the spiral blades 10 pushes the ceramic particles toward the feeding hole 5 on the one hand, and on the other hand, through the stirring action of the blades, it forcibly disperses the ceramic particles that are agglomerated due to humidity or static electricity, so as to achieve the independent dispersion of individual particles. The dispersed and preheated ceramic particles enter the spheroidizing chamber 2 from the feeding hole 5 and fall evenly on the top surface of the receiving plate 15.

[0036] After the ceramic particles fall onto the support plate 15, the high-temperature generator 4 is activated. A high-temperature flame burner or plasma torch can be used. The high-temperature airflow generated by the high-temperature generator 4 enters the diversion pipe 13 through the fixed pipe 14. After being diverted, it enters the interior of the operating shell 3 through the air inlets 12 on both sides of the operating shell 3. Then, it blows from bottom to top. The high-temperature airflow passes through the evenly distributed ventilation holes on the support plate 15 and reaches the top of the support plate 15, rapidly heating the ceramic particles on the support plate 15. Under the action of high temperature, the surface of the ceramic particles gradually melts. Driven by surface tension, the irregular particle edges shrink inward and gradually evolve into spheres. Inside the spheroidizing chamber 2, guide plates 16 are fixedly installed on both sides and are set in an inclined position to form a triangular heat field concentration area. The high-temperature airflow generates a vortex effect here, which prolongs the residence time of the ceramic particles in the high-temperature area, ensuring that the particle core also reaches full melting and preventing the "half-cooked" phenomenon. The heat insulation net 11 at the top of the spheroidizing chamber 2 allows the exhaust gas to be discharged and prevents external impurities from falling in, while maintaining the stability of the internal heat field.

[0037] During the high-temperature melting process, to prevent particles from sticking together or accumulating, the second reduction motor 18 is activated. The drive shaft of the second reduction motor 18 drives the swing column 20 to rotate, and the two reciprocating columns 21 fixedly sleeved on the swing column 20 rotate accordingly. During the rotation, the reciprocating columns 21 periodically swing from a horizontal position to an upright position. When the reciprocating column 21 rotates to the upright position, its top lifts the support plate 15, causing the support plate 15 to move upward. When the reciprocating column 21 continues to rotate away from the upright position, the support plate 15 falls under the action of gravity and the tension of the spring 23. Through the continuous rotation of the second reduction motor 18, the support plate 15 generates high-frequency up-and-down vibration. The spring 23 in the mounting cylinder 22 cooperates with the connecting block 24 to store elastic potential energy when the reciprocating column 21 lifts up and releases it when it falls back down, significantly increasing the vibration amplitude of the support plate 15. This vibration has three effects: First, the ceramic particles piled up on the support plate 15 are shaken apart to prevent the particles from sticking together and forming large lumps in the molten state. Secondly, it causes the particles to roll on the surface of the support plate 15, promoting the uniformity of spheroidization; Third, the basically spherical particles are gradually pushed towards the discharge hole 25 area on the support plate 15.

[0038] Under the combined action of high-temperature airflow and vibration, some light particles that are too small or not fully spheroidized are carried up by the airflow to the top of the spheroidizing chamber 2. Then, they fall through the gap between the guide plates 16 to the inclined surface of the plates and slide down to the discharge hole 17. These light fine powders are discharged through the discharge hole 17 and enter the collection boxes 36 installed on both sides of the spheroidizing chamber 2. They fall into the bottom of the collection box 36 through the drop hole 37. The collection box 36 is detachably installed on both sides of the spheroidizing chamber 2 by the cooperation of the threaded post 40 and the fixing groove 41. When the fine powder in the collection box 36 accumulates to a certain extent, the threaded post 40 can be loosened to remove the collection box 36 and pour out the fine powder for easy cleaning.

[0039] After the ceramic particles have been fully spheroidized on the receiving plate 15, the operator turns the handwheel 28, which drives the rotating column 27, the baffle plate 26 and the limiting block 29 to rotate 90°, so that the baffle plate 26 changes from a horizontal blocking position to a vertical open position, thus removing the obstruction to the discharge hole 25. At this time, with the continuous vibration of the receiving plate 15, the spheroidized ceramic particles gradually fall into the bottom of the operating shell 3 through the discharge hole 25, and are finally discharged through the discharge pipe 44, completing the entire spheroidization process. The magnet 33 in the fixing ring 31 generates an attractive force on the limiting block 29, so that the baffle plate 26 remains stable in the open or closed position, preventing vibration from causing malfunction.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for high-temperature melting and spheroidizing ceramic particles, characterized in that, include: A work frame (1) is provided with a spheroidizing chamber (2) fixedly installed on the top surface of the work frame (1) and an operating shell (3) fixedly installed on the bottom surface of the spheroidizing chamber (2). A dispersing component is provided on one side of the spheroidizing chamber (2) for dispersing and preheating agglomerated ceramic particles. The dispersing component includes: a feeding hole (5), which is opened on one side of the spheroidizing chamber (2). A feeding shell (6) is fixedly installed on one side of the spheroidizing chamber (2). The feeding shell (6) is positioned corresponding to the feeding hole (5). A feeding hopper (7) is fixedly installed on the top surface of the feeding shell (6). A first reduction motor (8) is fixedly installed on one side of the feeding shell (6). A conveying column (9) is provided inside the feeding shell (6). A spiral blade (10) is fixedly installed on the outer circular wall of the conveying column (9). A connecting hole (42) is opened on one side of the feeding shell (6). The conveying column (9) is movably connected to the connecting hole (42). The conveying column (9) is fixedly installed to the drive shaft of the first reduction motor (8). The top surface of the spheroidizing chamber (2) is provided with a high-temperature generating component for high-temperature melting and spheroidizing of ceramic particles; The operating shell (3) is provided with a vibration component on one side for assisting in the dispersion of spheroidized ceramic particles. The spheroidizing chamber (2) is equipped with collection components on both sides for collecting light dust or fine powder that has not been fully spheroidized during the spheroidizing process.

2. The ceramic particle high-temperature melting and spheroidizing device according to claim 1, characterized in that, The high-temperature generating component includes: A heat insulation net (11) is fixedly installed on the top surface of the spheroidizing chamber (2). A high-temperature generator (4) is fixedly installed on the top surface of the working frame (1). An air inlet (12) is opened on both sides of the operating shell (3). A diversion pipe (13) is provided inside the working frame (1). The diversion pipe (13) is fixedly sleeved with the air inlet (12). A fixing pipe (14) is fixedly sleeved on the inner circular wall of the diversion pipe (13). The fixing pipe (14) is fixedly sleeved with the air outlet of the high-temperature generator (4). A guide plate (16) is fixedly installed on both sides of the inside of the spheroidizing chamber (2). A discharge hole (17) is opened on both sides of the spheroidizing chamber (2). A material support plate (15) is movably sleeved inside the spheroidizing chamber (2). Several ventilation holes are evenly arranged on the top surface of the material support plate (15).

3. The ceramic particle high-temperature melting and spheroidizing device according to claim 1, characterized in that, The vibration assembly includes: The second geared motor (18) is fixedly installed on one side of the operating housing (3). The operating housing (3) has an installation hole (19) on one side. The operating housing (3) has a swing column (20) inside. The swing column (20) is fixedly installed with the drive shaft of the second geared motor (18). The outer circular wall of the swing column (20) has two reciprocating columns (21). The reciprocating column (21) has a limiting hole (43) on one side. The limiting hole (43) is fixedly sleeved with the swing column (20).

4. The ceramic particle high-temperature melting and spheroidizing device according to claim 1, characterized in that: The collection component includes: Two collection boxes (36) are respectively set on both sides of the spheroidizing chamber (2). A material discharge hole (37) is opened on one side of the collection box (36). The material discharge hole (37) is corresponding to the discharge hole (17). Fixing blocks (38) are fixedly installed on both sides of the collection box (36). A fixing hole (39) is opened on one side of the fixing block (38). A threaded column (40) is movably sleeved on the inner circular wall of the fixing hole (39). Two fixing grooves (41) are opened on both sides of the spheroidizing chamber (2). The inner circular wall of the fixing groove (41) is threaded. The threaded column (40) is threadedly connected to the fixing groove (41).

5. The ceramic particle high-temperature melting and spheroidizing device according to claim 1, characterized in that: Several mounting cylinders (22) are fixedly installed on the bottom surface of the spheroidizing chamber (2). Springs (23) are fixedly installed on the bottom surface of the mounting cylinders (22). Connecting blocks (24) are fixedly installed on the top surface of the springs (23). The connecting blocks (24) are fixedly installed with the material support plate (15).

6. The ceramic particle high-temperature melting and spheroidizing device according to claim 1, characterized in that: The top surface of the material receiving plate (15) is provided with a discharge hole (25). A baffle plate (26) is movably sleeved inside the discharge hole (25). A rotating column (27) is fixedly installed on one side of the baffle plate (26). A handwheel (28) is fixedly installed on one side of the rotating column (27). A limiting block (29) is fixedly installed on the outer circular wall of the rotating column (27). A rotating hole (30) is provided on one side of the spheroidizing chamber (2). The rotating column (27) is movably sleeved with the rotating hole (30). A fixing ring (31) is fixedly installed on one side of the spheroidizing chamber (2). A limiting groove (32) is provided on the inner circular wall of the fixing ring (31). A magnet (33) is fixedly sleeved on the inner circular wall of the limiting groove (32). The rotating column (27) is movably sleeved with the fixing ring (31). The limiting block (29) is movably sleeved with the limiting groove (32).

7. The ceramic particle high-temperature melting and spheroidizing device according to claim 1, characterized in that: A heating groove (34) is provided on one side of the feed shell (6), and a heating wire (35) is provided inside the heating groove (34).

8. The ceramic particle high-temperature melting and spheroidizing device according to claim 1, characterized in that: The bottom surface of the operating shell (3) is provided with a circular through hole, and the inner wall of the circular through hole is fixedly sleeved with a discharge pipe (44).

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