Aluminum magnesium alloy powder preparation device

Abstract

The utility model relates to an aluminum magnesium alloy powder preparation device, which comprises a water cooling container and a gas atomization component, and is technically characterized in that the bottom surface of the water cooling container is provided with an oxygenation ring connected with the side wall of the water cooling container, the oxygenation ring is provided with a gas inlet leading out of the water cooling container, and the inner circumferential surface of the oxygenation ring is uniformly provided with a plurality of gas orifices; a horizontal supporting plate is arranged in the upper portion of the water cooling container, a motor is fixed to the bottom of the horizontal supporting plate, a hollow shaft is connected to the upper end of an output shaft of the motor, a conical atomizing disc communicated with the hollow shaft is connected to the upper end of the hollow shaft, an air supply through hole set is formed in the upper surface of the conical atomizing disc, and a sliding ring capable of rotating relative to the hollow shaft is arranged on the outer side of the hollow shaft. The hollow shaft is provided with an air passing opening communicated with an inner cavity of the sliding ring, an air supply pipeline is arranged on the outer wall of the sliding ring, the tail end of the air supply pipeline is connected with a pressurizing device, and a fixing base is arranged between the sliding ring and the horizontal supporting plate. The device enhances the preparation effect of the aluminum magnesium alloy powder and prolongs the maintenance period.

Description

Technical Field

[0001] This utility model relates to the technical field of aluminum-magnesium alloy powder production equipment, specifically to an aluminum-magnesium alloy powder preparation device. Background Technology

[0002] In preparing aluminum-magnesium alloy powder, the aluminum and magnesium ingots are first cleaned of impurities. Then, under a protective gas atmosphere, the aluminum and magnesium ingots are added to a vacuum melting furnace for vacuum melting to obtain a molten liquid. The molten liquid is then atomized by airflow to obtain aluminum-magnesium alloy powder. Finally, the preparation device oxidizes and passivates the aluminum-magnesium alloy powder to obtain spherical aluminum-magnesium alloy powder material.

[0003] For example, CN 213827020 U discloses a device for preparing iron-silicon-chromium soft magnetic alloy powder. This device introduces high-pressure inert gas through a gas atomization component, impacting the high-temperature alloy molten metal drawn from a guide tube. This atomizes the molten alloy into numerous fine droplets, which fall onto a centrifugal atomization component. As the centrifugal atomization disk rotates, the alloy droplets on the disk diffuse into even smaller droplets under centrifugal force, flying out from the edge of the disk. Under the influence of liquid surface tension, the droplets become spherical and fall into the cold water of a water-cooled container, rapidly cooling and solidifying before reacting with oxygen to form alloy powder with a surface oxide layer. The powder prepared by this device has a small particle size, and the oxide layer on the surface of the prepared alloy powder provides good rust prevention. However, the following problems still exist: 1. The oxygenation pipes are unevenly arranged, resulting in poor oxygenation; 2. When the alloy droplets fall onto the centrifugal atomization disk of the centrifugal atomization component, some droplets adhere to the surface of the disk, requiring regular cleaning. Utility Model Content

[0004] The purpose of this invention is to provide a reasonably structured and reliable aluminum-magnesium alloy powder preparation device that solves the above-mentioned problems, enhances the preparation effect of aluminum-magnesium alloy powder, and extends the maintenance cycle.

[0005] The technical solution of this utility model is:

[0006] An aluminum-magnesium alloy powder preparation device includes a water-cooled container and an air atomization assembly. The key technical features are: an oxygen-enriching ring connected to the side wall of the water-cooled container is provided on the bottom surface of the water-cooled container; the oxygen-enriching ring has an air inlet leading out of the water-cooled container; multiple air jet holes are uniformly arranged on the inner circumferential surface of the oxygen-enriching ring; a horizontal support plate is built into the upper part of the water-cooled container; a motor is fixed at the bottom of the horizontal support plate; a hollow shaft is connected to the upper end of the output shaft of the motor; a conical atomizing disc communicating with the hollow shaft is connected to the upper end of the hollow shaft; an air supply hole group is provided on the upper surface of the conical atomizing disc; a slip ring that can rotate relative to the hollow shaft is provided on the outer side of the hollow shaft; the cross-section of the slip ring is C-shaped; an air outlet communicating with the inner cavity of the slip ring is provided on the hollow shaft; an air supply pipeline is provided on the outer wall of the slip ring; the end of the air supply pipeline is connected to a pressurizing device; and a fixed seat is provided between the slip ring and the horizontal support plate.

[0007] In the above-mentioned aluminum-magnesium alloy powder preparation device, an intermediate jar containing molten aluminum-magnesium alloy is fixed at the top of the water-cooled container, a conical hopper is provided at the bottom of the intermediate jar, and the gas atomizing component is fixed at the lower end of the conical hopper.

[0008] The beneficial effects of this utility model are:

[0009] 1. An oxygenation ring is set up, and multiple air jet holes are evenly distributed on its inner circumference to spray oxygen from all directions, so as to achieve uniform oxygenation of the water-cooled container and thus enhance the preparation effect of aluminum-magnesium alloy powder.

[0010] 2. Gas is injected into the hollow shaft through a slip ring, and then ejected through the air supply holes on the surface of the conical atomizing disk. During this process, the conical atomizing disk rotates under the drive of the motor, thus forming a spiral vortex above the conical atomizing disk and below the gas atomization component. This further decomposes the alloy droplets generated by the gas atomization component, forming smaller alloy droplets, thereby enhancing the preparation effect of aluminum-magnesium alloy powder. Simultaneously, it prevents alloy droplets from adhering to the upper surface of the conical atomizing disk, extending the maintenance cycle. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 yes Figure 1 Enlarged view of section A.

[0013] In the diagram: 1. Intermediate container, 2. Conical hopper, 3. Atomizing assembly, 4. Water-cooled container, 5. Oxygenating ring, 6. Jet nozzle, 7. Air inlet, 8. Pressurizing device, 9. Conical atomizing disc, 10. Air supply port group, 11. Slip ring, 12. Fixing base, 13. Horizontal support plate, 14. Motor, 15. Hollow shaft, 16. Air outlet, 17. Air supply pipeline. Detailed Implementation

[0014] The present invention will be described in detail with reference to the accompanying drawings.

[0015] like Figure 1 , Figure 2 As shown, the aluminum-magnesium alloy powder preparation device includes a water-cooled container 4 and an atomizing component 3.

[0016] The bottom surface of the water-cooled container 4 is provided with an oxygenation ring 5 that is connected to the side wall of the water-cooled container 4. The oxygenation ring 5 is provided with an air inlet 7 leading out of the water-cooled container 4. The inner circumferential surface of the oxygenation ring 5 is provided with a plurality of air jet holes 6.

[0017] The upper part of the water-cooled container 4 has a built-in horizontal support plate 13, and a motor 14 is fixed at the bottom of the horizontal support plate 13. The upper end of the output shaft of the motor 14 is connected to a hollow shaft 15, and the upper end of the hollow shaft 15 is connected to a conical atomizing disk 9 communicating with it. The upper surface of the conical atomizing disk 9 is provided with an air supply hole group 10. A slip ring 11 that can rotate relative to the hollow shaft 15 is provided on the outside of the hollow shaft 15. The cross-section of the slip ring 11 is C-shaped. The hollow shaft 15 is provided with an air outlet 16 communicating with the inner cavity of the slip ring 11. An air supply pipeline 17 is provided on the outer wall of the slip ring 11. The end of the air supply pipeline 17 is connected to a pressurizing device 8. A fixing seat 12 is provided between the slip ring 11 and the horizontal support plate 13.

[0018] In this embodiment, an intermediate ladle 1 containing molten aluminum-magnesium alloy is fixed to the top of the water-cooled container 4, and a conical hopper 2 is provided at the bottom of the intermediate ladle 1. The gas atomizing component 3 is fixed to the lower end of the conical hopper 2. The centerline of the gas atomizing component 3 coincides with the centerline of the conical atomizing disk 9.

[0019] Working principle:

[0020] During operation, the molten aluminum-magnesium alloy in the intermediate ladle 1 is sprayed out through the gas atomization component 3, forming numerous alloy droplets that are sprayed onto the conical atomization disk 9.

[0021] Motor 14 drives the conical atomizing disk 9 to rotate. The replenishing air is sent to the inside of the slip ring 11 through the pressurizing device 8 and the air supply line 17, and then injected into the hollow shaft 15 by the slip ring 11. It then enters the conical atomizing disk 9 and is finally sprayed out through the replenishing air through hole group 10 on the surface of the conical atomizing disk 9. As the conical atomizing disk 9 rotates under the drive of motor 14, a spiral cyclone is formed above the conical atomizing disk 9 and below the air atomizing component 3. This cyclone further decomposes the alloy droplets generated by the air atomizing component 3, forming smaller alloy droplets. After the alloy droplets disperse and fall into the water-cooled container 4, they are rapidly cooled and solidified in the cold water and react with oxygen in the cold water to form a surface oxide layer.

[0022] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made within the scope of this utility model should still fall within the scope of this patent.

Claims

1. An apparatus for producing an aluminum-magnesium alloy powder comprising a water-cooled container and a gas atomization assembly, characterized by: The bottom surface of the water-cooled container is provided with an oxygen-increasing ring connected with the side wall of the water-cooled container, the oxygen-increasing ring is provided with an air inlet leading out of the water-cooled container, the inner circumferential surface of the oxygen-increasing ring is uniformly provided with a plurality of air injection holes, a horizontal support plate is built-in the upper portion of the water-cooled container, a motor is fixed to the bottom of the horizontal support plate, the output shaft of the motor is connected with a hollow shaft at the upper end, the hollow shaft is connected with a conical atomizing disc in communication therewith at the upper end, the upper surface of the conical atomizing disc is provided with a set of air supplementing through holes, the outer side of the hollow shaft is provided with a slip ring capable of rotating relative thereto, the cross section of the slip ring is C-shaped, the hollow shaft is provided with a gas passing opening in communication with the inner cavity of the slip ring, the outer wall of the slip ring is provided with a gas feeding pipeline, the terminal end of the gas feeding pipeline is connected with a pressurizing device, and a fixing seat is arranged between the slip ring and the horizontal support plate.

2. The aluminum magnesium alloy powder production apparatus according to claim 1, characterized by: An intermediate ladle containing molten aluminum-magnesium alloy is fixed to the top of the water-cooled container, the bottom of the intermediate ladle is provided with a conical hopper, and the gas atomizing assembly is fixed to the lower end of the conical hopper.

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