Spray head device for high-temperature alloy atomization powder preparation

Abstract

The utility model is applicable to the technical field of material preparation, and provides a spray head device for high-temperature alloy atomization powdering, which comprises a spray head body, the nozzle is arranged at the top end of the spray head body, a spray hole is formed in the nozzle, the spray head body is fixedly communicated with a liquid inlet pipe, the two sides of the spray head body are both fixedly communicated with air inlet pipes, the two air inlet pipes are both communicated with the liquid inlet pipe, and a compression cavity is formed in the spray head body; the connecting pipe is arranged at the bottom end of the spray head body; the adjustable fixing mechanism is arranged on the connecting pipe and used for being matched with the spray pipes with different thicknesses; and the cooling mechanism is arranged on the spray head body and is used for cooling the spray head body. According to the spray head device for high-temperature alloy atomization powder preparation, the spray head can be effectively cooled, the atomization efficiency is improved, the powder quality is improved, and the spray head device can be matched with spray pipes with different thicknesses.

Description

Technical Field

[0001] This utility model belongs to the field of material preparation technology, and in particular relates to a nozzle device for atomizing and pulverizing high-temperature alloys. Background Technology

[0002] Atomization powder production is a powder preparation method that uses a rapidly moving fluid (atomizing medium) to impact or otherwise break a liquid metal or alloy into fine droplets, which are then condensed into solid powder.

[0003] As the core component of atomization powder production technology, the performance of the nozzle device directly affects key indicators such as particle size distribution, sphericity, and yield of the powder. However, existing nozzle devices operate under harsh conditions such as high temperature and high pressure. High temperature significantly reduces the strength of metal materials, causing deformation of the nozzle structure. Furthermore, at high temperatures, the metal reacts with oxygen to form an oxide layer, which increases the roughness of the inner wall of the nozzle, resulting in reduced atomization efficiency and decreased powder quality. Utility Model Content

[0004] This invention provides a nozzle device for high-temperature alloy atomization powder production, aiming to solve the problem mentioned in the background art that existing nozzle devices generate an oxide layer at high temperatures due to the reaction of metal and oxygen, which increases the roughness of the inner wall of the nozzle, resulting in reduced atomization efficiency and decreased powder quality.

[0005] To solve the above problems, this utility model is implemented as follows: a nozzle device for high-temperature alloy atomization powder production, comprising: a nozzle body; a nozzle, the nozzle being disposed at the top of the nozzle body, the nozzle having a spray hole, a liquid inlet pipe fixedly connected to the nozzle body, air inlet pipes fixedly connected to both sides of the nozzle body, both air inlet pipes being connected to the liquid inlet pipe, and a compression chamber provided inside the nozzle body; a connecting pipe, the connecting pipe being disposed at the bottom of the nozzle body; an adjustable fixing mechanism, the adjustable fixing mechanism being disposed on the connecting pipe, for adapting to nozzles of different diameters; and a cooling mechanism, the cooling mechanism being disposed on the nozzle body, for cooling and reducing the temperature of the nozzle body.

[0006] Preferably, the adjustable fixing mechanism includes a threaded cylinder, a threaded rod, and a fixing ring. The threaded cylinder is rotatably mounted on the connecting pipe, the threaded rod is threaded onto the threaded cylinder, and the fixing ring is fixedly mounted on one end of the threaded rod.

[0007] Preferably, the cooling mechanism includes a cooling cover, a cooling chamber, an injection pipe, and a drain pipe. The cooling cover is fitted onto the nozzle body, the cooling chamber is located on the cooling cover, and the injection pipe and drain pipe are fixedly connected to the top and bottom of the cooling cover, respectively.

[0008] Preferably, the air inlet pipe, the liquid injection pipe, and the liquid discharge pipe are all equipped with sealing valves.

[0009] Preferably, one end of the threaded cylinder extends outside the connecting pipe and is fixedly mounted with a drive head for rotation.

[0010] Preferably, a guide rod is fixedly installed on the fixing ring, and the guide rod slides through the connecting pipe.

[0011] Preferably, mounting plates are fixedly installed on both the top and bottom of the cooling cover, and the mounting plates are provided with fixing bolts for fixing the cooling cover to the nozzle body.

[0012] Compared with related technologies, the nozzle device for high-temperature alloy atomization powder production provided by this utility model has the following beneficial effects:

[0013] Compared with existing technologies, the nozzle device for high-temperature alloy atomization powder production provided by this solution achieves the overall goal of improving powder quality and production efficiency. It can effectively cool down the nozzle, prevent the formation of metal oxide layer, avoid increasing the roughness of the nozzle inner wall, thereby improving atomization efficiency and powder quality. It can also be adapted to nozzles of different diameters, and is convenient, precise, and stable to operate, extending the service life of components. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of a nozzle device for high-temperature alloy atomization powder production provided by this utility model;

[0015] Figure 2 This is a schematic diagram of the main cross-sectional structure of a nozzle device for high-temperature alloy atomization powder production provided by this utility model;

[0016] Figure 3 This is a top view of the connecting pipe and fixing ring in this utility model;

[0017] Figure 4 for Figure 2 The diagram shows an enlarged view of part A.

[0018] Reference numerals: 1. Nozzle body; 2. Nozzle; 3. Spray hole; 4. Liquid inlet pipe; 5. Air inlet pipe; 6. Compression chamber; 7. Connecting pipe; 8. Threaded cylinder; 9. Threaded rod; 10. Retaining ring; 11. Cooling cover; 12. Cooling chamber; 13. Liquid injection pipe; 14. Liquid discharge pipe; 15. Sealing valve; 16. Drive head; 17. Guide rod; 18. Mounting plate; 19. Fixing bolt. Detailed Implementation

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings are used to distinguish different objects, not to describe a particular order; the terms "inner," "outer," "left," and "right" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0020] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0021] This utility model embodiment provides a nozzle device for high-temperature alloy atomization powder production, such as... Figure 1-4 As shown, the nozzle device for high-temperature alloy atomization powder production includes: a nozzle body 1; a nozzle 2, the nozzle 2 being disposed at the top of the nozzle body 1, the nozzle 2 having a spray hole 3, a liquid inlet pipe 4 being fixedly connected to the nozzle body 1, and air inlet pipes 5 being fixedly connected to both sides of the nozzle body 1, both air inlet pipes 5 being connected to the liquid inlet pipe 4, and a compression chamber 6 being provided inside the nozzle body 1; a connecting pipe 7, the connecting pipe 7 being disposed at the bottom end of the nozzle body 1; an adjustable fixing mechanism, the adjustable fixing mechanism being disposed on the connecting pipe 7, for adapting to nozzles of different diameters; and a cooling mechanism, the cooling mechanism being disposed on the nozzle body 1, for cooling the nozzle body 1.

[0022] In this embodiment, the nozzle body 1 serves as the main body of the device, supporting all components. It contains a compression chamber 6, providing basic space for the atomization powder production process. A nozzle 2 is installed at the top of the nozzle body 1, with spray holes 3 on it. The atomized high-temperature alloy powder is ejected from the spray holes 3. A liquid inlet pipe 4 is fixedly connected to the nozzle body 1, used to deliver high-temperature alloy liquid into the nozzle body 1. Two air inlet pipes 5 are fixedly connected to both sides of the nozzle body 1, and both are connected to the liquid inlet pipe 4, used to deliver high-pressure gas into the nozzle body 1. The high-pressure gas and the high-temperature alloy liquid interact within the compression chamber 6 to achieve atomization. A connecting pipe 7 is located at the bottom of the nozzle body 1, used to connect the nozzle body 1 to other equipment or nozzles. An adjustable fixing mechanism is installed on the connecting pipe 7, which, through its adjustment function, can adapt to nozzles of different diameters, enhancing the device's performance. The device's versatility is enhanced by an adjustable fixing mechanism that can accommodate nozzles of varying diameters, allowing it to connect to various equipment or nozzles. This improves the device's versatility and applicability while reducing operating costs. A cooling mechanism is installed on the nozzle body 1, which cools the nozzle body 1 during operation, effectively reducing the temperature of the nozzle at high temperatures. This minimizes the formation of an oxide layer due to the reaction between metal and oxygen, preventing an increase in the roughness of the nozzle's inner wall and maintaining its smoothness. Because the roughness of the nozzle's inner wall is controlled, the interaction between the high-temperature alloy liquid and the high-pressure gas in the compression chamber 6 is smoother, resulting in a more efficient atomization process and improved atomization efficiency. The superior atomization effect leads to more uniform powder particle size, reducing powder quality issues caused by the roughness of the nozzle's inner wall and improving the final powder quality.

[0023] In a further preferred embodiment of the present invention, the adjustable fixing mechanism includes a threaded cylinder 8, a threaded rod 9, and a fixing ring 10. The threaded cylinder 8 is rotatably mounted on the connecting pipe 7, the threaded rod 9 is threadedly mounted on the threaded cylinder 8, and the fixing ring 10 is fixedly mounted on one end of the threaded rod 9.

[0024] In this embodiment, the threaded cylinder 8 is rotatably mounted on the connecting pipe 7, serving as the starting component for adjustment and providing a basic structure for the movement of the threaded rod 9. When it is necessary to adapt to nozzles of different diameters, the adjustment process is initiated by rotating the threaded cylinder 8. The threaded rod 9 is threadedly mounted on the threaded cylinder 8. As the threaded cylinder 8 rotates, the threaded rod 9 moves along the axial direction of the threaded cylinder 8 due to the threaded engagement. The fixing ring 10 is fixedly mounted on one end of the threaded rod 9. When the threaded rod 9 moves, the fixing ring 10 moves accordingly. After the nozzle is inserted into the connecting pipe 7, rotating the threaded cylinder 8 causes the threaded rod 9 to move the fixing ring 10 until the fixing ring 10 is in close contact with the nozzle, thereby fixing the nozzle to the connecting pipe 7. The position of the fixing ring 10 can be flexibly adjusted by rotating the threaded cylinder 8, allowing this adjustable fixing mechanism to adapt to nozzles of different diameters, greatly enhancing the versatility of the nozzle device and enabling it to be used with nozzles of various specifications, thus improving the device's application range and flexibility.

[0025] In a further preferred embodiment of the present invention, the cooling mechanism includes a cooling cover 11, a cooling chamber 12, an injection pipe 13, and a drain pipe 14. The cooling cover 11 is sleeved on the nozzle body 1, the cooling chamber 12 is disposed on the cooling cover 11, and the injection pipe 13 and the drain pipe 14 are respectively fixedly connected to the top and bottom of the cooling cover 11.

[0026] In this embodiment, the cooling cover 11 is fitted onto the nozzle body 1, providing a relatively enclosed space for the cooling process and ensuring that the cooling medium can fully contact the nozzle body 1. The cooling chamber 12 is disposed on the cooling cover 11 and is the place where the cooling medium circulates, used to contain the cooling medium and realize heat exchange. The injection pipe 13 is fixedly connected to the top of the cooling cover 11 and is used to inject the cooling medium, such as cooling water or other suitable cooling liquid, into the cooling chamber 12. When it is necessary to cool the nozzle body 1, the cooling medium is injected into the cooling chamber 12 through the injection pipe 13. The drain pipe 14 is fixedly connected to the bottom of the cooling cover 11 and is used to drain the cooling medium that has absorbed heat from the cooling chamber 12. After the cooling medium exchanges heat with the nozzle body 1 in the cooling chamber 12... As the temperature rises, the heated cooling medium is discharged through the drain pipe 14, while new low-temperature cooling medium is continuously injected through the injection pipe 13, forming a circulating cooling system. The cooling mechanism can quickly absorb the heat generated by the nozzle body 1 during operation through the cooling medium, effectively reducing the temperature of the nozzle body 1. This prevents the metal on the inner wall of the nozzle from reacting with oxygen to form an oxide layer due to high temperature, maintaining the smoothness of the inner wall of the nozzle and avoiding the impact of increased inner wall roughness on atomization efficiency and powder quality. The continuous cooling effect can keep the temperature of the nozzle body 1 within a relatively stable range, ensuring the stable performance of the nozzle device during high-temperature alloy atomization powder production, reducing the adverse effects of temperature fluctuations on atomization effect and powder quality, and improving the stability and reliability of production.

[0027] In a further preferred embodiment of the present invention, a sealing valve 15 is provided on the air inlet pipe 5, the liquid injection pipe 13 and the liquid discharge pipe 14.

[0028] In this embodiment, when high-pressure gas needs to be supplied to the nozzle body 1, the sealing valve 15 on the air inlet pipe 5 is opened, allowing the high-pressure gas to smoothly enter the nozzle body 1 through the air inlet pipe 5. When gas supply is not required or needs to be stopped, the sealing valve 15 is closed to prevent gas leakage. When cooling medium needs to be injected into the cooling chamber 12, the sealing valve 15 on the injection pipe 13 is opened, allowing the cooling medium to flow into the cooling chamber 12 through the injection pipe 13. When the injection of cooling medium is completed or needs to be stopped, the sealing valve 15 is closed to prevent the cooling medium from flowing out. When the cooling medium needs to be discharged after absorbing heat, the sealing valve 15 on the drain pipe 14 is opened, allowing the heated cooling medium to be discharged from the drain pipe 14. When drainage is not required or needs to be paused, the sealing valve 15 is closed to prevent external impurities from entering the cooling chamber 12. The time and flow rate of gas supply, cooling medium injection and discharge can be flexibly adjusted according to actual production needs, improving the controllability and stability of the production process.

[0029] In a further preferred embodiment of the present invention, one end of the threaded cylinder 8 extends to the outside of the connecting pipe 7 and is fixedly mounted with a drive head 16 for rotation.

[0030] In this embodiment, the drive head 16 is fixedly installed at one end of the threaded cylinder 8 and extends to the outside of the connecting pipe 7. The operator rotates the drive head 16 to drive the threaded cylinder 8 to rotate. When it is necessary to adapt to nozzles of different diameters, the operator rotates the drive head 16 by hand or with the help of a tool. The rotation of the drive head 16 will cause the threaded cylinder 8 to rotate accordingly. Since the threaded rod 9 is threadedly connected to the threaded cylinder 8, the threaded rod 9 will move along the axis of the threaded cylinder 8 when the threaded cylinder 8 rotates, thereby driving the fixed ring 10 fixedly installed at one end of the threaded rod 9 to move. The nozzles of different diameters can be fixed by adjusting the position of the fixed ring 10. The setting of the drive head 16 makes it easier for the operator to rotate the threaded cylinder 8, improving the ease of operation of the adjustable fixing mechanism.

[0031] In a further preferred embodiment of the present invention, a guide rod 17 is fixedly installed on the fixing ring 10, and the guide rod 17 slides through the connecting pipe 7.

[0032] In this embodiment, when the drive head 16 rotates to drive the threaded cylinder 8 to rotate, thereby causing the threaded rod 9 to move and driving the fixed ring 10 to move, the guide rod 17 will slide on the connecting pipe 7 as the fixed ring 10 moves. The sliding direction of the guide rod 17 along the connecting pipe 7 is consistent with the moving direction of the threaded rod 9. It provides guidance for the movement of the fixed ring 10, ensuring that the fixed ring 10 always maintains linear motion during the movement and will not deviate or rotate.

[0033] In a further preferred embodiment of the present invention, mounting plates 18 are fixedly installed on the top and bottom of the cooling cover 11, and the mounting plates 18 are provided with fixing bolts 19 for fixing the cooling cover 11 to the nozzle body 1.

[0034] In this embodiment, when installing the cooling cover 11, the cooling cover 11 is fitted onto the nozzle body 1, aligning the mounting plate 18 with the corresponding mounting position on the nozzle body 1. Then, the mounting plate 18 is tightened and fixed to the nozzle body 1 using the fixing bolt 19, thereby achieving a firm connection between the cooling cover 11 and the nozzle body 1. When it is necessary to disassemble the cooling cover 11 for maintenance or replacement, simply loosen the fixing bolt 19 to remove the cooling cover 11 from the nozzle body 1. Through the cooperation of the mounting plate 18 and the fixing bolt 19, the cooling cover 11 can be tightly and firmly fixed to the nozzle body 1, ensuring that the cooling cover 11 will not loosen or shift due to vibration or other external forces during the high-temperature alloy atomization powder making process, and ensuring that the cooling mechanism can function continuously and stably.

[0035] In summary, compared with related technologies, this device achieves the overall goal of improving powder quality and production efficiency. It can effectively cool down the nozzle, prevent the formation of metal oxide layer, avoid increasing the roughness of the nozzle inner wall, thereby improving atomization efficiency and powder quality. It can also be adapted to nozzles of different diameters, and is convenient, precise, and stable to operate, extending the service life of components.

[0036] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.

[0037] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A nozzle device for atomizing and pulverizing high-temperature alloys, characterized in that, include: Nozzle body; The nozzle is located at the top of the nozzle body and has a spray hole. A liquid inlet pipe is fixedly connected to the nozzle body. Air inlet pipes are fixedly connected to both sides of the nozzle body. Both air inlet pipes are connected to the liquid inlet pipe. A compression chamber is provided inside the nozzle body. A connecting pipe is provided at the bottom end of the nozzle body; An adjustable fixing mechanism is provided on the connecting pipe to adapt to nozzles of different diameters; A cooling mechanism is provided on the nozzle body and is used to cool and reduce the temperature of the nozzle body.

2. The nozzle device for high-temperature alloy atomization powder production as described in claim 1, characterized in that, The adjustable fixing mechanism includes a threaded cylinder, a threaded rod, and a fixing ring. The threaded cylinder is rotatably mounted on the connecting pipe, the threaded rod is threaded onto the threaded cylinder, and the fixing ring is fixedly mounted on one end of the threaded rod.

3. The nozzle device for high-temperature alloy atomization powder production as described in claim 1, characterized in that, The cooling mechanism includes a cooling cover, a cooling chamber, an injection pipe, and a drain pipe. The cooling cover is fitted onto the nozzle body, the cooling chamber is located on the cooling cover, and the injection pipe and drain pipe are fixedly connected to the top and bottom of the cooling cover, respectively.

4. The nozzle device for high-temperature alloy atomization powder production as described in claim 3, characterized in that, The air inlet pipe, liquid injection pipe, and liquid discharge pipe are all equipped with sealing valves.

5. The nozzle device for high-temperature alloy atomization powder production as described in claim 2, characterized in that, One end of the threaded cylinder extends outside the connecting pipe and is fixedly mounted with a drive head for rotation.

6. The nozzle device for high-temperature alloy atomization powder production as described in claim 2, characterized in that, A guide rod is fixedly installed on the fixing ring, and the guide rod slides through the connecting pipe.

7. The nozzle device for high-temperature alloy atomization powder production as described in claim 3, characterized in that, Mounting plates are fixedly installed on the top and bottom of the cooling cover, and the mounting plates are provided with fixing bolts for fixing the cooling cover to the nozzle body.

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