Multistage atomization system and atomization preparation method of high-entropy alloy powder

Abstract

This invention discloses a multi-stage atomization system and atomization preparation method for high-entropy alloy powder, relating to the field of alloy powder atomization technology. It includes an atomization device for atomizing high-entropy alloy molten material; an intermediate insulation component is installed on the atomization device, and a tail material protection component is installed on the intermediate insulation component; the tail material protection component is used to prevent continuous dripping of the high-entropy alloy molten material; an offset detection component is installed inside the atomization device. The tail material protection component enables automatic detection of the amount of alloy molten material remaining inside the intermediate insulation component. When the intermediate insulation component is nearly empty due to failure to add molten material in time, the system automatically controls the suspension of alloy molten material tail material discharge by using wind power. This solves the problem that current multi-stage atomization systems for high-entropy alloy powder are not convenient for automatically controlling tail material recovery and insulation.

Description

Technical Field

[0001] This invention relates to the field of alloy powder atomization technology, specifically to a multi-stage atomization system and atomization preparation method for high-entropy alloy powder. Background Technology

[0002] High-entropy alloy powders can be used in laser powder bed melting and additive manufacturing. When preparing high-entropy alloy powders through atomization, they typically require heating and melting before atomization and powdering. After screening, they are used. This powdering method expands the application range of the alloy. Current multi-stage atomization systems for high-entropy alloy powders usually use a single ring of nozzles to directly impact the molten alloy, resulting in poor atomization. Furthermore, the accompanying mixing and dispersing structure easily causes water droplets to splash, affecting the discharge of the molten alloy above. In traditional atomization methods, after each addition of molten alloy to the tundish, as the molten alloy flows to the end, the tail material and molten alloy adhering to the wall tend to drip continuously. During the dripping process, the temperature drops rapidly, and it is difficult to ensure the accuracy of the drop, easily causing it to adhere to the end of the guide pipe. This makes it difficult to automatically control the recovery and heat preservation of the tail material before discharging it together with the next batch of molten alloy.

[0003] Therefore, this invention proposes a multi-stage atomization system and atomization preparation method for high-entropy alloy powder. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-stage atomization system and atomization preparation method for high-entropy alloy powder, so as to solve the problem mentioned in the background art that the current multi-stage atomization system for high-entropy alloy powder is not convenient for automatic control of tail material recycling and heat preservation.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a multi-stage atomization system for high-entropy alloy powder, comprising an atomizing device for atomizing high-entropy alloy molten material; an intermediate heat-insulating component installed on the atomizing device, and a tail material protection component installed on the intermediate heat-insulating component; the tail material protection component for preventing continuous dripping of high-entropy alloy molten material; an offset detection component installed inside the atomizing device; a dispersion and splash-proof component installed on the atomizing device; the atomizing device includes: an atomizing tank and a discharge solenoid valve, the discharge solenoid valve being fixedly installed at the bottom of the atomizing tank; and four support legs provided at the bottom of the atomizing tank.

[0006] Preferably, the atomizing device further includes: an air supply pump, a primary atomizing tube, an atomizing solenoid valve, and a secondary atomizing tube. The air supply pump is fixedly installed on the side of the atomizing tank via a bracket; the air outlet pipe of the air supply pump is fixedly installed on the atomizing tank; the air supply pump is used for air supply and flow control; a ring of primary atomizing tubes is fixedly installed on the atomizing tank, and each ring of atomizing tank has a nozzle at its end; a secondary atomizing tube is fixedly installed at the bottom of each ring of primary atomizing tubes, and each ring of secondary atomizing tubes has a nozzle at its end; an atomizing solenoid valve is fixedly installed on each ring of primary atomizing tubes; and a water pump is externally connected to the end of each ring of primary atomizing tubes via a flexible hose.

[0007] Preferably, the atomizing device further includes: an indicator light, an exhaust solenoid valve, and a guide pipe; the indicator light is fixedly installed on the front side of the atomizing can; the exhaust solenoid valve is fixedly installed on the atomizing can; the exhaust solenoid valve is connected to the interior of the atomizing can; the guide pipe is fixedly installed on the top of the atomizing can; the guide pipe is used to guide and discharge the high-entropy alloy molten liquid.

[0008] Preferably, the intermediate insulation component includes: an intermediate insulation bag, a magnet, and a tailings switch. The intermediate insulation bag is fixedly installed on the guide pipe; the bottom of the intermediate insulation bag is connected to the guide pipe; a magnet is fixedly installed on the intermediate insulation bag; a tailings switch is fixedly installed on the intermediate insulation bag, and the end of the tailings switch passes through the magnet; an electric heating wire for heat preservation is provided inside the intermediate insulation bag; the tailings switch is electrically connected to a discharge solenoid valve, an air supply pump, an atomizing solenoid valve, and an exhaust solenoid valve.

[0009] Preferably, the tail material protection component includes: a lifting shaft, a floating shell, and an iron plate. The lifting shaft is slidably inserted into the intermediate insulation bag; the floating shell is fixedly installed at the bottom of the lifting shaft, and the floating shell has a hollow structure; the iron plate is fixedly installed at the top of the lifting shaft, and the iron plate is located above the magnet; the magnet is used to prevent the floating shell from shaking.

[0010] Preferably, the offset detection component includes: a bearing seat, a pressure arm, and a pressure switch. The bearing seat is fixedly installed inside the atomizing can; the pressure arm is rotatably mounted on the bearing seat; a spring connects the bearing seat and the pressure arm; and the pressure switch is fixedly mounted on the bearing seat, with the pressure switch located below the pressure arm.

[0011] Preferably, the offset detection component further includes: a through ring, which is fixedly installed at the end of the pressure arm; the through ring and the guide tube are concentric; the through ring is located above the end of the first-stage atomizing tube; and the pressure switch is electrically connected to an indicator light.

[0012] Preferably, the dispersing and splash-proof component includes: a dispersing motor, stirring blades, and an upper splash shield. The dispersing motor is fixedly installed at the bottom of the atomizing tank. The output shaft of the dispersing motor passes through the bottom of the atomizing tank. Three rings of stirring blades are fixedly installed on the output shaft of the dispersing motor. An upper splash shield is fixedly installed on the top of the output shaft of the dispersing motor, and the upper splash shield has an inclined structure.

[0013] Preferably, the anti-splash component further includes: a lower guide ring, which is fixedly installed inside the atomizing tank and has an inclined structure; the lower guide ring is located between the two upper rings of stirring blades.

[0014] A method for preparing high-entropy alloy powder by atomization:

[0015] 1) Turn on the water pump connected to the first-stage atomizing tube to supply water, pour the alloy molten liquid into the middle insulation bag, and the alloy molten liquid is discharged from the guide tube. When it passes through the water flow sprayed by the nozzle at the end of the first-stage atomizing tube, it is atomized under the impact of the water flow. The nozzle of the second-stage atomizing tube sprays water together, further impacting and atomizing.

[0016] 2) Turn on the dispersing motor to drive the stirring blades to rotate, preventing alloy particles from sticking together.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] This invention employs a tail material protection component to automatically detect the amount of molten alloy remaining inside the intermediate insulation component. When the intermediate insulation component is nearly empty due to failure to add molten alloy in time, the system automatically controls the discharge of molten alloy tail material by using airflow to stop the discharge. The molten alloy tail material can then flow directly back into the intermediate insulation component for insulation. This effectively prevents the molten metal adhering to the walls of the intermediate insulation component from continuously dripping out of the guide pipe when the molten alloy inside the intermediate insulation component is nearly empty, thus avoiding any impact on atomization quality.

[0019] The offset detection device can automatically detect the accuracy of the alloy molten material discharged from the guide pipe. When there are impurities attached to the bottom of the guide pipe or the atomizing tank is tilted, the deviation of the alloy molten material discharge will be automatically indicated. This will prevent the liquid column from missing the intersection of the water flow from the first-stage atomizing tube when the alloy molten material is deviated. The prompting method makes it easier for staff to carry out maintenance work in a timely manner.

[0020] The use of a dispersing and splash-proof component can further disperse the atomized alloy particles, thereby eliminating adhesion. At the same time, the mixed dispersing method of this structure can be protected against splashing by the upper splash shield. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a multi-stage atomization system for high-entropy alloy powder according to the present invention;

[0022] Figure 2 This is a cross-sectional view of the internal structure of a multi-stage atomization system for high-entropy alloy powder according to the present invention.

[0023] Figure 3 This is a schematic diagram of the internal structure of the atomizing device of the present invention;

[0024] Figure 4 This is a schematic diagram of the outer structure of the atomizing device of the present invention;

[0025] Figure 5 This is a schematic diagram of the intermediate insulation component structure of the present invention;

[0026] Figure 6 For the present invention Figure 5 Enlarged view of the structure of region B in the middle;

[0027] Figure 7 For the present invention Figure 2 Enlarged view of the structure of region C in the middle;

[0028] Figure 8 This is a schematic diagram of the offset detection component of the present invention;

[0029] Figure 9 This is a schematic diagram of the anti-splash component structure of the present invention;

[0030] Figure 10 For the present invention Figure 9 Enlarged view of the structure of region D in the middle.

[0031] In the diagram: 1. Atomizing device; 101. Atomizing tank; 102. Exhaust solenoid valve; 103. Air pump; 104. Primary atomizing tube; 1041. Atomizing solenoid valve; 1042. Secondary atomizing tube; 105. Indicator light; 106. Exhaust solenoid valve; 107. Guide tube; 2. Intermediate insulation component; 201. Intermediate insulation bag; 202. Magnet; 203. Tail material switch; 3. Tail material protection component; 301. Lifting shaft; 302. Floating shell; 303. Iron sheet; 4. Offset detection component; 401. Shaft seat; 402. Lower pressure arm; 403. Lower pressure switch; 404. Through ring; 5. Dispersing and splash-proof component; 501. Dispersing motor; 5011. Stirring blade; 502. Upper splash shield; 503. Lower guide ring. Detailed Implementation

[0032] 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.

[0033] Example 1: Please refer to Figures 1 to 10 As shown:

[0034] A multi-stage atomization system for high-entropy alloy powder includes an atomizing device 1 for atomizing high-entropy alloy molten material; an intermediate insulation component 2 is installed on the atomizing device 1, and a tail material protection component 3 is installed on the intermediate insulation component 2; the tail material protection component 3 is used to prevent continuous dripping of high-entropy alloy molten material; an offset detection component 4 is installed inside the atomizing device 1; a dispersion and splash prevention component 5 is installed on the atomizing device 1; the atomizing device 1 includes an atomizing tank 101 and a discharge solenoid valve 102, the discharge solenoid valve 102 is fixedly installed at the bottom of the atomizing tank 101; the bottom of the atomizing tank 101 is provided with four support legs, and each of the four support legs is provided with a ring of through holes.

[0035] The atomizing device 1 further includes: an air supply pump 103, a primary atomizing tube 104, an atomizing solenoid valve 1041, and a secondary atomizing tube 1042. The air supply pump 103 is fixedly installed on the side of the atomizing tank 101 via a bracket; the air outlet pipe of the air supply pump 103 is fixedly installed on the atomizing tank 101; the air supply pump 103 is used for air supply and flow control; a ring of primary atomizing tubes 104 is fixedly installed on the atomizing tank 101, and each ring of the atomizing tank 101 has a nozzle at its end; a secondary atomizing tube 1042 is fixedly installed at the bottom of each ring of primary atomizing tubes 104, and each ring of secondary atomizing tubes 1042 has a nozzle at its end; an atomizing solenoid valve 1041 is fixedly installed on each ring of primary atomizing tubes 104; and the ends of each ring of primary atomizing tubes 104 are connected externally via flexible hoses. The device includes a water pump; the atomizing device 1 also includes: an indicator light 105, an exhaust solenoid valve 106, and a guide pipe 107. The indicator light 105 is fixedly installed on the front side of the atomizing tank 101; the exhaust solenoid valve 106 is fixedly installed on the atomizing tank 101; the exhaust solenoid valve 106 is connected to the inside of the atomizing tank 101; the guide pipe 107 is fixedly installed on the top of the atomizing tank 101; the guide pipe 107 is used to guide and discharge the high-entropy alloy molten liquid; the intermediate insulation component 2 includes: an intermediate insulation bag 201, a magnet 202, and a tailing switch 203. The intermediate insulation bag 201 is fixedly installed on the guide pipe 107; the bottom of the intermediate insulation bag 201 is connected to the guide pipe 107; the magnet 202 is fixedly installed on the intermediate insulation bag 201; the tailing switch 203 is fixedly installed on the intermediate insulation bag 201. 03, and the end of the tail material switch 203 passes through the magnet 202; the interior of the intermediate insulation bag 201 is equipped with an electric heating wire for heat preservation; the tail material switch 203 is electrically connected to the discharge solenoid valve 102, the air supply pump 103, the atomizing solenoid valve 1041 and the exhaust solenoid valve 106; the tail material protection component 3 includes: a lifting shaft 301, a floating shell 302 and an iron plate 303, the lifting shaft 301 is slidably inserted into the intermediate insulation bag 201; the floating shell 302 is fixedly installed at the bottom of the lifting shaft 301, and the floating shell 302 is a hollow structure; the iron plate 303 is fixedly installed at the top of the lifting shaft 301, and the iron plate 303 is located above the magnet 202; the magnet 202 is used to prevent the floating shell 302 from shaking, and the atomizing device 1 can facilitate two-stage water atomization, through the two-stage atomization The atomization tube 1042 improves the overall atomization of water. The tail material protection component 3 can automatically detect the amount of alloy molten material remaining inside the intermediate insulation component 2. If the intermediate insulation component 2 is close to empty due to failure to add molten material in time, the automatic control will stop the discharge of alloy molten material tail material by wind power. It can directly flow back into the intermediate insulation component 2 for insulation. This can effectively prevent the metal molten material hanging on the wall of the intermediate insulation component 2 from being discharged continuously in the form of drips from the guide tube 107 when the alloy molten material inside the intermediate insulation component 2 is close to empty. At this time, the flow rate of the alloy molten material droplets slows down, and it is easy to cool and solidify, making it difficult to atomize. It is also easy to adhere to the bottom of the guide tube 107, affecting the accuracy of subsequent discharge of alloy molten material. This structure improves the atomization process quality through insulation.Once the molten alloy inside the intermediate insulation bag 201 is nearly completely drained, the floating shell 302 also descends with the liquid level, causing the iron plate 303 on the lifting shaft 301 to approach the magnet 202. Under the magnetic force of the magnet 202, the iron plate 303 is attracted, and it directly presses against the tail material switch 203. The tail material switch 203 then controls the air pump 103 to start quickly and supply air. At the same time, the discharge solenoid valve 102, the atomizing solenoid valve 1041, and the exhaust solenoid valve 106 are all closed, and the atomizing tank 101 is in a sealed state. Only the guide pipe 107 can be vented. Under air pressure, the molten alloy inside the guide pipe 107 will quickly flow back into the intermediate insulation bag 201 for heating and insulation. Air is continuously supplied through the air pressure, and discharge is paused. When the molten alloy is discharged from the guide pipe 107, if the liquid column deviates and is no longer concentric with the through ring 404, the through ring 404 will block the liquid column and be impacted by the molten alloy. At this time, the lowering arm 402 is pressed down, which will press the lowering switch 403, controlling the indicator light 105 to illuminate as a warning.

[0036] The offset detection component 4 includes: a bearing 401, a lowering arm 402, and a lowering switch 403. The bearing 401 is fixedly installed inside the atomizing tank 101; the lowering arm 402 is rotatably mounted on the bearing 401; a spring connects the bearing 401 and the lowering arm 402; the lowering switch 403 is fixedly mounted on the bearing 401 and is located below the lowering arm 402; the offset detection component 4 also includes: a connecting ring 404, which is fixedly installed at the end of the lowering arm 402; the connecting ring 404 is concentric with the guide tube 107; the connecting ring 404 is located above the end of the first-stage atomizing tube 104; the lowering arm 402 is located below the lowering arm 402. The pressure switch 403 is electrically connected to the indicator light 105. The offset detection component 4 can automatically detect the accuracy of the alloy melt discharge from the guide tube 107. When there are impurities attached to the bottom of the guide tube 107 or the atomizing tank 101 is tilted, the alloy melt discharge will deviate and an automatic warning will be given. This will prevent the liquid column from deviating and passing through the intersection of the water flow from the first-stage atomizing tube 104, which can easily cause incomplete atomization and affect the particle size control quality. The structure is simple to control and can provide intuitive warning. When the liquid column is tilted when the alloy melt is discharged from the guide tube 107, the indicator light 105 will light up to indicate this.

[0037] In Example 2, based on Example 1, the dispersing and splash-proof component 5 includes: a dispersing motor 501, stirring blades 5011, and an upper splash shield 502. The dispersing motor 501 is fixedly installed at the bottom of the atomizing tank 101; the output shaft of the dispersing motor 501 passes through the bottom of the atomizing tank 101; three rings of stirring blades 5011 are fixedly installed on the output shaft of the dispersing motor 501; the upper splash shield 502 is fixedly installed on the top of the output shaft of the dispersing motor 501, and the upper splash shield 502 has a sloping structure; the dispersing and splash-proof component 5 also includes: a lower guide ring 503, the lower guide ring 503 is fixedly installed inside the atomizing tank 101, and the lower... The guide ring 503 has a sloping structure; the lower guide ring 503 is located between the two upper rings of stirring blades 5011. The dispersing and splashing component 5 can further disperse the atomized alloy particles and further eliminate adhesion. At the same time, the mixing and dispersing method of this structure can be protected by the upper splash shield 502 to prevent splashing caused by the high-speed rotation of the stirring blades 5011. The alloy particles that splash into the alloy melt discharged from the guide pipe 107 first fall onto the upper splash shield 502. The outer diameter of the upper splash shield 502 is larger than the inner diameter of the lower guide ring 503. At the same time, the splash shield 502 has a sloping structure to assist in the anti-splashing work.

[0038] A method for preparing high-entropy alloy powder by atomization:

[0039] 1) Turn on the water pump connected to the first-stage atomizing tube 104 to supply water, pour the alloy molten liquid into the middle insulation bag 201, and discharge the alloy molten liquid from the guide tube 107. When the water flow passes through the nozzle at the end of the first-stage atomizing tube 104, it is atomized under the impact of the water flow. The nozzle of the second-stage atomizing tube 1042 sprays water together, further impacting atomization.

[0040] 2) Turn on the dispersing motor 501 to drive the stirring blade 5011 to rotate, preventing alloy particles from sticking together.

[0041] The working principle of this embodiment is as follows: The four support legs at the bottom of the atomizing tank 101 are bolted to the ground. A water pump connected to the primary atomizing tube 104 is turned on to supply water. After pouring molten alloy into the intermediate insulation bag 201, the molten alloy is discharged from the guide pipe 107. At this time, the molten alloy is rapidly discharged. When it passes through the water jet sprayed from the nozzle at the end of the primary atomizing tube 104, it is rapidly atomized under the impact of the water flow. Simultaneously, the nozzle of the secondary atomizing tube 1042 further impacts and atomizes the alloy, increasing the atomization range. The exhaust solenoid valve 106 serves as ventilation, ensuring that the primary atomizing tube 104 and the secondary atomizing tube 1042 can drain water normally. The exhaust solenoid valve 102 can also be directly connected to a water pump via a water pipe to supply water to the atomizing tank. Water is injected into body 101 to facilitate the discharge of alloy particles. When water is sprayed from the primary atomizing tube 104 and the secondary atomizing tube 1042 to atomize the alloy molten metal, the alloy particles first fall to the upper splash guard 502. Utilizing the inclined structure of the upper splash guard 502, they can be discharged to the lower guide ring 503. Utilizing the inclined structure of the lower guide ring 503, the alloy particles are then guided to the stirring blade 5011. In conjunction with the dispersing motor 501 driving the stirring blade 5011 to rotate, the alloy particles are prevented from sticking together. The outer diameter of the upper splash guard 502 is larger than the inner diameter of the lower guide ring 503. At the same time, the splash guard 502 has an inclined structure to assist in preventing water splashing. The atomized alloy particles containing water fall naturally and can be discharged through the discharge solenoid valve 102.

[0042] When molten alloy is poured into the intermediate insulation bag 201, the electric heating wire inside the intermediate insulation bag 201 heats it in real time to maintain the temperature. At the same time, under the action of buoyancy, the floating shell 302 floats on the liquid surface. Once the molten alloy inside the intermediate insulation bag 201 is almost completely discharged, the floating shell 302 also descends with the liquid level, causing the iron piece 303 on the lifting shaft 301 to approach the magnet 202. Under the magnetic force of the magnet 202, the iron piece 303 is attracted, and the iron piece 303 directly squeezes the tail material switch 203. The tail material switch 203 can then control the air pump 103 to start quickly to supply air. At the same time, the discharge solenoid valve 102, the atomizing solenoid valve 1041, and the exhaust solenoid valve 106 are all closed. At this time, the atomizing tank 101 is in a sealed state. Only the guide pipe 107 can be ventilated. Under the action of air pressure, the alloy melt in the guide pipe 107 will quickly flow back to the interior of the intermediate insulation bag 201 for heating and insulation. Only after the alloy melt is poured back into the interior of the intermediate insulation bag 201, and the buoyancy caused by the rise of the poured alloy melt is greater than the magnetic force of the magnet 202, will the iron piece 303 detach and float back to the surface of the liquid in the floating shell 302. When the iron piece 303 detaches from the magnet 202, the tail material switch 203 can control the air pump 103 to close, and at the same time, the discharge solenoid valve 102, the atomization solenoid valve 1041 and the exhaust solenoid valve 106 are all opened. The alloy melt is discharged again through the guide pipe 107 for atomization.

[0043] When the alloy molten liquid is discharged from the guide pipe 107, if the liquid column deviates and is no longer concentric with the through ring 404, the through ring 404 will stop the liquid column of the alloy molten liquid and will be impacted by the alloy molten liquid. At this time, the lower pressure arm 402 is pressed down, compressing the spring below the lower pressure arm 402, which will press the lower pressure switch 403 and control the indicator light 105 to light up as a warning.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0045] 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 multi-stage atomization system of high-entropy alloy powder, comprising an atomization device (1) for atomizing a high-entropy alloy melt; an intermediate heat preservation member (2) is installed on the atomization device (1), characterized in that: The intermediate insulation component (2) is equipped with a tail material protection component (3); the tail material protection component (3) is used to prevent the continuous dripping of high-entropy alloy melt. The atomizing device (1) is equipped with an offset detection component (4). The atomizing device (1) is equipped with a splash-proof component (5); The atomizing device (1) includes: an atomizing tank (101), an exhaust solenoid valve (102), an air pump (103), a primary atomizing tube (104), and an atomizing solenoid valve (1041). The exhaust solenoid valve (102) is fixedly installed at the bottom of the atomizing tank (101). The bottom of the atomizing tank (101) is provided with four support legs. The air pump (103) is fixedly installed on the side of the atomizing tank (101) by a bracket. A ring of primary atomizing tubes (104) is fixedly installed on the atomizing tank (101), and each end of the primary atomizing tube (104) is provided with a nozzle. An atomizing solenoid valve (1041) is fixedly installed on each ring of the primary atomizing tubes (104). The atomizing device (1) further includes: an indicator light (105), an exhaust solenoid valve (106), and a guide pipe (107). The indicator light (105) is fixedly installed on the front side of the atomizing canister (101); the exhaust solenoid valve (106) is fixedly installed on the atomizing canister (101); and the guide pipe (107) is fixedly installed on the top of the atomizing canister (101). The intermediate insulation component (2) includes: an intermediate insulation bag (201), a magnet (202), and a tailing switch (203). The intermediate insulation bag (201) is fixedly installed on the guide pipe (107). The bottom of the intermediate insulation bag (201) is connected to the guide pipe (107). A magnet (202) is fixedly installed on the intermediate insulation bag (201). A tailing switch (203) is fixedly installed on the intermediate insulation bag (201), and the end of the tailing switch (203) passes through the magnet (202). An electric heating wire for heat preservation is provided inside the intermediate insulation bag (201). The tailing switch (203) is electrically connected to the discharge solenoid valve (102), the air pump (103), the atomizing solenoid valve (1041), and the exhaust solenoid valve (106). The tail material protection component (3) includes: a lifting shaft (301), a floating shell (302) and an iron plate (303). The lifting shaft (301) is slidably inserted into the intermediate insulation bag (201). The floating shell (302) is fixedly installed at the bottom of the lifting shaft (301), and the floating shell (302) is a hollow structure. The iron plate (303) is fixedly installed at the top of the lifting shaft (301), and the iron plate (303) is located above the magnet (202). The magnet (202) is used to prevent the floating shell (302) from shaking.

2. The multi-stage atomization system for high-entropy alloy powder according to claim 1, characterized in that: The atomizing device (1) further includes: a secondary atomizing tube (1042), the air outlet pipe of the air supply pump (103) is fixedly installed on the atomizing tank (101); the air supply pump (103) is used for air supply interception; a secondary atomizing tube (1042) is fixedly installed at the bottom of a ring of the primary atomizing tube (104), and a nozzle is provided at the end of a ring of the secondary atomizing tube (1042); a water pump is connected to the end of a ring of the primary atomizing tube (104) through a hose.

3. The multi-stage atomization system for high-entropy alloy powder according to claim 1, characterized in that: The exhaust solenoid valve (106) is connected to the interior of the atomizing tank (101); the guide pipe (107) is used to guide the discharge of high-entropy alloy melt.

4. The multi-stage atomization system for high-entropy alloy powder according to claim 1, characterized in that: The offset detection component (4) includes: a bearing seat (401), a pressure arm (402), and a pressure switch (403). The bearing seat (401) is fixedly installed inside the atomizing can (101). The pressure arm (402) is rotatably installed on the bearing seat (401). A spring is connected between the bearing seat (401) and the pressure arm (402). The pressure switch (403) is fixedly installed on the bearing seat (401) and is located below the pressure arm (402).

5. The multi-stage atomization system for high-entropy alloy powder according to claim 4, characterized in that: The offset detection component (4) further includes: a through ring (404), which is fixedly installed at the end of the pressure arm (402); the through ring (404) and the guide tube (107) are concentric; the through ring (404) is located above the end of the first-stage atomizing tube (104); the pressure switch (403) is electrically connected to the indicator light (105).

6. The multi-stage atomization system for high-entropy alloy powder according to claim 2, characterized in that: The dispersing and splash-proof component (5) includes: a dispersing motor (501), a stirring blade (5011), and an upper splash shield (502). The dispersing motor (501) is fixedly installed at the bottom of the atomizing tank (101). The output shaft of the dispersing motor (501) passes through the bottom of the atomizing tank (101). Three rings of stirring blades (5011) are fixedly installed on the output shaft of the dispersing motor (501). The upper splash shield (502) is fixedly installed on the top of the output shaft of the dispersing motor (501), and the upper splash shield (502) is a sloping structure.

7. The multi-stage atomization system for high-entropy alloy powder according to claim 6, characterized in that: The anti-splash component (5) further includes a lower guide ring (503), which is fixedly installed inside the atomizing tank (101), and the lower guide ring (503) is a sloping structure; the lower guide ring (503) is located between the two upper rings of stirring blades (5011).

8. A method for preparing high-entropy alloy powder by atomization, using the multi-stage atomization system for high-entropy alloy powder as described in claim 6, characterized in that: The steps include: 1) Turn on the water pump connected to the first-stage atomizing tube (104) to supply water, pour the alloy molten liquid into the middle insulation bag (201), and discharge the alloy molten liquid from the guide tube (107). When the water flow is sprayed by the nozzle at the end of the first-stage atomizing tube (104), it is atomized under the impact of the water flow. The nozzle of the second-stage atomizing tube (1042) sprays water together, further impacting the atomization. 2) Turn on the dispersing motor (501) to drive the stirring blade (5011) to rotate, preventing alloy particles from sticking together.

Images