A cooling device for preparing composite metal powder

Abstract

This utility model relates to the field of composite metal powder preparation technology, and provides a cooling device for composite metal powder preparation, including a liquid metal container. An annular air-cooling cavity is arranged circumferentially inside the container wall, and several straight-plate-shaped heat dissipation fins are evenly arranged inside the annular air-cooling cavity. A filter assembly is inserted into the front and rear walls of the liquid metal container near the bottom. The front and rear filter assemblies and the annular air-cooling cavity are connected through a communication port inside the liquid metal container. An air pump connected to the annular air-cooling cavity is installed near the upper port of the liquid metal container. This cooling device, through the organic combination of air cooling and liquid cooling, achieves efficient, uniform, and stable thermal management, significantly improving the temperature control level in the composite metal powder preparation process, promoting the stable improvement of powder quality, and meeting the needs of high-performance metal powder industrial production.

Description

Technical Field

[0001] This utility model relates to the field of composite metal powder preparation technology, and specifically to a cooling device for composite metal powder preparation. Background Technology

[0002] With the continuous improvement of the properties of metallic materials and the development of powder metallurgy technology, the preparation of high-quality metal powders using high-speed jetting methods such as water droplet sputtering has become one of the important processes in metal powder production. This method involves high-speed water droplets impacting molten metal, causing it to cool and solidify instantaneously, forming metal powders with uniform particle size and controllable particle size. This process has advantages such as fast reaction speed, uniform powder particle size distribution, and high product quality, and is widely used in aerospace, electronics, automotive, and other industries.

[0003] However, traditional metal powder cooling technologies still have some shortcomings in practical applications. Common cooling methods mainly rely on natural convection heat dissipation or continuous injection of cooling water into the tank. Natural cooling is slow due to limitations imposed by ambient temperature and airflow conditions, making it difficult to meet the demands of high-efficiency production. This can lead to localized overheating or uneven temperature distribution of the powder during cooling, affecting the particle size and performance consistency. On the other hand, while continuous injection of cooling water can increase the cooling rate, it presents several problems. Firstly, water temperature is difficult to control strictly, easily leading to unstable cooling effects and even causing denaturation or agglomeration of the metal powder. Secondly, the continuous water flow may carry impurities during cooling, contaminating the powder and affecting product quality. Furthermore, excessive water flow can cause mechanical erosion or powder loss, increasing equipment maintenance difficulty and production costs.

[0004] Therefore, this invention proposes a cooling device for preparing composite metal powders to solve the above-mentioned problems. Utility Model Content

[0005] To overcome the shortcomings of the prior art, the purpose of this utility model is to provide a cooling device for the preparation of composite metal powder.

[0006] To achieve the aforementioned objective, the technical solution of this utility model is implemented as follows: A cooling device for preparing composite metal powder includes a metal liquid container. An annular air-cooling cavity is arranged circumferentially inside the wall of the metal liquid container, and several straight-plate-shaped heat dissipation fins are evenly arranged inside the annular air-cooling cavity. A filter assembly is inserted into the front and rear walls of the metal liquid container near the bottom. The front and rear filter assemblies and the annular air-cooling cavity are connected through a communication port inside the metal liquid container. An air pump connected to the annular air-cooling cavity is installed near the upper port of the metal liquid container. A liquid-cooling cavity is formed inside the bottom of the metal liquid container, and spiral heat dissipation fins are installed inside the liquid-cooling cavity. A liquid-cooling circulation assembly connected to the liquid-cooling cavity is also installed at the bottom of the metal liquid container.

[0007] Preferably, several straight plate-shaped heat dissipation fins are evenly distributed along the circumference inside the annular air-cooling cavity.

[0008] Preferably, the air pump has four corresponding connections to the front, back, left, and right positions of the top of the annular air-cooling cavity.

[0009] Preferably, the filter assembly includes an arc-shaped insertion frame and a filter element. The arc-shaped insertion frame is inserted into the interior of the metal liquid container, and its curvature is consistent with the curvature of the annular air-cooling cavity. The filter element is installed inside the arc-shaped insertion frame.

[0010] Preferably, the filter element includes a first filter element plate, a second filter element plate, and a third filter element plate, which are arranged in order from bottom to top, and their filtration capabilities increase sequentially.

[0011] Preferably, the liquid cooling circulation assembly includes a circulating liquid pump, a liquid guide pipe, and a condenser. The circulating liquid pump is installed at the center of the bottom of the liquid metal container, and its liquid extraction end is connected to the center of the liquid cooling cavity, which is also located at the center of the spiral heat dissipation fins. The condenser is located on the right side outside the liquid metal container, and its liquid outlet is connected to the right side of the liquid cooling cavity. The liquid outlet of the circulating liquid pump and the liquid inlet of the condenser are connected through the liquid guide pipe.

[0012] Preferably, the liquid metal container is used as a carrier for preparing metal powder by high-speed water droplet sputtering.

[0013] The beneficial effects of this utility model are reflected in:

[0014] This cooling device significantly improves the air-cooling heat exchange area and efficiency by setting an annular air-cooling chamber 11 inside the wall of the liquid metal container 1, combined with multiple straight-plate heat dissipation fins 2, thus achieving uniform and rapid cooling of the container wall. Multiple air pumps 3 distributed around the container ensure uniform and seamless airflow within the annular air-cooling chamber, preventing localized overheating and guaranteeing the stability and consistency of the overall cooling effect.

[0015] Meanwhile, a liquid cooling chamber 12 is added inside the tank bottom, along with spiral heat dissipation fins 5 and a liquid cooling circulation assembly 6, to achieve efficient liquid cooling of the tank bottom. The liquid cooling medium continuously circulates in the closed-loop system, quickly removing heat from the bottom and preventing heat accumulation. This combined air-cooling and liquid-cooling cooling method works synergistically to form a comprehensive, multi-layered heat dissipation mechanism.

[0016] This device is particularly suitable for the preparation of composite metal powders, as it can rapidly reduce the temperature of the high-temperature metal powder and liquid mixture formed by sputtering, preventing powder denaturation, agglomeration, or performance degradation caused by sustained high temperatures, and ensuring the particle size uniformity and chemical stability of the metal powder. Furthermore, the multi-layer composite filtration design of filter component 4 effectively blocks impurities in the air from entering the cooling system, ensuring the cleanliness of the cooling medium, extending equipment lifespan, and improving the safety and reliability of the cooling system.

[0017] In summary, this cooling device achieves efficient, uniform, and stable thermal management through the organic combination of air cooling and liquid cooling, significantly improving the temperature control level in the composite metal powder preparation process, promoting the stable improvement of powder quality, meeting the needs of industrial production of high-performance metal powders, and has broad application prospects and promotional value. Attached Figure Description

[0018] In the attached diagram:

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the straight plate-shaped heat dissipation fins and the structure of the filter assembly in the removed state of this utility model.

[0021] Figure 3 This is a schematic diagram of the transverse half-section structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the longitudinal half-section structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the split structure of the filter assembly of this utility model;

[0024] Figure 6 This is a schematic diagram of the filter element of this utility model;

[0025] Figure 7 This is a schematic diagram of the spiral heat dissipation fins of this utility model;

[0026] Figure 8 This is a schematic diagram of the liquid cooling circulation component structure of this utility model;

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Metal liquid container; 2. Straight plate heat dissipation fins; 3. Air pump; 4. Filter assembly; 5. Spiral heat dissipation fins; 6. Liquid cooling circulation assembly;

[0029] 11. Annular air-cooled cavity; 12. Liquid-cooled cavity; 13. Connecting port;

[0030] 41. Arc-shaped connector frame; 42. Filter element;

[0031] 421. First filter element plate; 422. Second filter element plate; 423. Third filter element plate;

[0032] 61. Circulating liquid pump; 62. Liquid guide pipe; 63. Condenser. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of the utility model, and not all of them. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of the utility model without creative effort are within the scope of protection of the utility model.

[0034] It should be noted that if the utility model embodiment involves directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0035] Furthermore, "multiple" refers to two or more. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by the utility model.

[0036] Please refer to the instruction manual appendix. Figures 1-8 This utility model provides a specific embodiment of a cooling device for preparing composite metal powder.

[0037] The core component of the cooling device is a liquid metal container 1, which serves as a carrier in the process of preparing composite metal powder by high-speed water droplet sputtering and other methods, and directly contains high-temperature molten metal.

[0038] To achieve efficient and uniform cooling, an annular air-cooling cavity 11 is machined inside the wall of the liquid metal container 1, continuously distributed along its circumference. Inside this annular air-cooling cavity 11, a number of straight plate-shaped heat dissipation fins 2 are uniformly arranged circumferentially. These straight plate-shaped heat dissipation fins 2 greatly increase the heat dissipation area and improve the air-cooling efficiency.

[0039] To drive the cooling airflow, an air pump 3, which communicates with the interior of the annular air-cooling cavity 11, is installed near the upper port of the metal liquid container 1. In a preferred embodiment, four air pumps 3 are provided, respectively connected to the front, rear, left, and right positions of the top of the annular air-cooling cavity 11, to ensure the uniformity of airflow distribution within the annular air-cooling cavity and avoid cooling dead zones.

[0040] The cooling air intake is achieved through the filter assembly 4. Insertion ports are provided near the bottom of both the front and rear walls of the liquid metal container 1 for connecting the filter assembly 4. The filter assemblies 4 on both sides are connected to the annular air-cooling chamber 11 via communication ports 13 on the walls of the liquid metal container 1. After being purified by the filter assembly 4, the external cooling air enters the annular air-cooling chamber 11 through the communication ports 13. Under the suction of the air pump 3, it flows upward, carrying away the heat from the straight-plate heat dissipation fins 2, thus achieving active air cooling of the container walls.

[0041] Specifically, the filter assembly 4 includes an arc-shaped insertion frame 41 and a filter element 42 installed within the frame. The arc design of the arc-shaped insertion frame 41 is consistent with the arc of the annular air-cooling cavity 11, ensuring that it can be tightly inserted and cover the air intake channel. The filter element 42 adopts a multi-layer composite design, including a first filter element plate 421, a second filter element plate 422, and a third filter element plate 423 distributed sequentially from bottom to top. The filtration capacity of these three filter element plates increases sequentially, which can intercept dust and other impurities in the air step by step, effectively preventing pollutants from entering the cooling system.

[0042] To further enhance the cooling effect, especially in the bottom area, a liquid cooling chamber 12 is provided inside the bottom of the liquid metal container 1. Spiral heat dissipation fins 5 are installed inside this liquid cooling chamber 12 to increase the heat exchange area. Simultaneously, the device is equipped with a liquid cooling circulation assembly 6 connected to the liquid cooling chamber 12.

[0043] The liquid cooling circulation assembly 6 includes a circulating liquid pump 61, a liquid guide pipe 62, and a condenser 63. The circulating liquid pump 61 is installed at the center of the bottom of the liquid metal container 1, with its suction end pipe extending to the center of the liquid cooling cavity 12 and located in the central area of ​​the spiral heat dissipation fins 5. The condenser 63 is located on the right side outside the liquid metal container 1, with its outlet end connected to the right side of the liquid cooling cavity 12 via a pipe. The outlet end of the circulating liquid pump 61 and the inlet end of the condenser 63 are connected by the liquid guide pipe 62. During operation, the circulating liquid pump 61 draws the heated coolant from the liquid cooling cavity 12, delivers it to the condenser 63 for cooling through the liquid guide pipe 62, and then pumps the cooled liquid back into the liquid cooling cavity 12, forming a closed-loop circulation that continuously and efficiently cools the bottom of the liquid metal container 1.

[0044] The working principle of this device is as follows: During the preparation of composite metal powder, high-temperature molten metal is placed in a liquid metal container 1, and then sprayed into the interior through an external water droplet spraying mechanism, thereby sputtering and forming metal powder. After the device is started, the vacuum pump 3 operates, causing external air to be purified by the bottom filter assembly 4 before entering the annular air-cooling chamber 11 and flowing upwards, cooling the tank wall through convection heat exchange; simultaneously, the liquid cooling circulation assembly 6 is activated to provide forced liquid cooling to the bottom of the tank. This combined air cooling and liquid cooling, with coordinated cooling from top to bottom, can quickly and uniformly remove heat, significantly improving cooling efficiency and facilitating the production of composite metal powder with uniform particle size and excellent quality.

[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cooling device for preparing a composite metal powder, comprising a metal liquid containing tank (1), characterized in that, The metal liquid container (1) has an annular air-cooling cavity (11) distributed along its circumference inside the tank wall, and several straight plate-shaped heat dissipation fins (2) are evenly arranged inside the annular air-cooling cavity (11). A filter assembly (4) is inserted into the front and rear tank walls of the metal liquid container (1) near the bottom. The front and rear filter assemblies (4) and the annular air-cooling cavity (11) are connected through a communication port (13) provided inside the metal liquid container (1). An air pump (3) connected to the annular air-cooling cavity (11) is installed near the upper port of the metal liquid container (1). A liquid cooling cavity (12) is opened inside the bottom of the metal liquid container (1). Spiral heat dissipation fins (5) are installed inside the liquid cooling cavity (12). A liquid cooling circulation assembly (6) connected to the liquid cooling cavity (12) is also installed at the bottom of the metal liquid container (1).

2. The cooling device for preparing a composite metal powder according to claim 1, characterized by, Several of the straight plate-shaped heat dissipation fins (2) are evenly distributed circumferentially inside the annular air-cooling cavity (11).

3. The cooling device for preparing composite metal powder according to claim 1, characterized in that, The air pump (3) has four corresponding connections to the top of the annular air-cooled cavity (11) in the front, back, left and right directions.

4. The cooling device for preparing composite metal powder according to claim 1, characterized in that, The filter assembly (4) includes an arc-shaped plug-in frame (41) and a filter element (42). The arc-shaped plug-in frame (41) is inserted into the metal liquid container (1), and its curvature is consistent with the curvature of the annular air-cooling cavity (11). The filter element (42) is installed inside the arc-shaped plug-in frame (41).

5. The cooling device for preparing composite metal powder according to claim 4, characterized in that, The filter element (42) includes a first filter element plate (421), a second filter element plate (422), and a third filter element plate (423). The first filter element plate (421), the second filter element plate (422), and the third filter element plate (423) are distributed in order from bottom to top, and their filtration capabilities increase sequentially.

6. The cooling device for preparing composite metal powder according to claim 1, characterized in that, The liquid cooling circulation assembly (6) includes a circulating liquid pump (61), a liquid guide pipe (62), and a condenser (63). The circulating liquid pump (61) is installed at the center of the bottom of the metal liquid container (1), and its liquid extraction end is connected to the center of the liquid cooling cavity (12) and is also located at the center of the spiral heat dissipation fins (5). The condenser (63) is located on the right side outside the metal liquid container (1), and its liquid outlet end is connected to the right side inside the liquid cooling cavity (12). The liquid outlet end of the circulating liquid pump (61) and the liquid inlet end of the condenser (63) are connected through the liquid guide pipe (62).

7. The cooling device for preparing composite metal powder according to claim 1, characterized in that, The metal liquid container (1) serves as a carrier for preparing metal powder by high-speed water droplet sputtering.

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