Water-cooled metal pulverizing equipment

Abstract

The utility model provides water-cooled metal pulverizing equipment, which belongs to the technical field of metal pulverizing equipment and comprises a chip cutting machine, an air inlet of the chip cutting machine is sequentially connected with a first fan and a first heat exchanger through pipelines, and an outlet of the chip cutting machine is sequentially connected with a second fan, a second heat exchanger, a chip breaker, a third fan, a third heat exchanger and a material collector through pipelines. A discharging port of the material collector is connected with a pulverizing system through a pipeline, the pulverizing system comprises a pulverizing machine, an air inlet of the pulverizing machine is connected with a feeding heat exchanger through a pipeline, and a discharging port of the pulverizing machine is sequentially connected with a discharging fan, a discharging heat exchanger and a discharging collector through pipelines; a discharging opening of the material collector is fixedly connected with a feeding opening of the flour mill through a pipeline; according to the scheme, the material treatment process is optimized, the requirement for high-quality metal powder in the production process is met by refining the materials step by step, the temperature in the production process is effectively controlled, and the problems of material performance change and equipment overheating are solved.

Description

Technical Field

[0001] This utility model relates to the technical field of metal powder making equipment, specifically to a water-cooled metal powder making equipment. Background Technology

[0002] The production of metal powders plays a vital role in modern industry, with a wide range of applications covering additive manufacturing, metal injection molding, thermal spraying, metallurgy and alloy manufacturing, and the chemical industry. To meet the demands of these applications, various methods and equipment for producing metal powders exist. For example, gas atomization equipment uses a high-speed gas stream to break molten metal into fine droplets and then cools and solidifies them; water atomization equipment uses a high-pressure water stream to achieve a similar effect; rotating electrode equipment is suitable for high-melting-point metals, generating fine powder by rotating and evaporating a metal electrode at high speed; while mechanical powdering involves grinding solid metal for an extended period until the desired particle size is achieved.

[0003] Of the methods mentioned above, mechanical grinding is the most common. It is relatively low-cost, highly flexible, can operate at room temperature without a smelting process, and is suitable for metals of various hardnesses, making it widely used across various industries. However, mechanical grinding also has its drawbacks: as it is a physical crushing process, the resulting products are irregular in shape and have a wide particle size distribution, requiring prolonged grinding to meet dimensional requirements; furthermore, prolonged operation of the mechanical equipment may lead to overheating, causing changes in material properties or equipment damage. Utility Model Content

[0004] The purpose of this invention is to provide a water-cooled metal powder making device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A water-cooled metal powder making device, comprising:

[0007] A chip cutter has its air inlet connected to a fan and a heat exchanger via pipes. Its outlet is connected to a fan, a heat exchanger, a chip breaker, a fan, a heat exchanger, and a material collector via pipes. The material collector's outlet is connected to a pulverizing system via pipes. The pulverizing system includes a pulverizer. The pulverizer's air inlet is connected to a feed heat exchanger via pipes. The pulverizer's outlet is connected to a discharge fan, a discharge heat exchanger, and a discharge collector via pipes. The material collector's outlet is fixedly connected to the pulverizer's inlet via pipes.

[0008] Preferably, heat exchanger one and feed heat exchanger are both connected to water-cooled unit one, and heat exchanger two, heat exchanger three and discharge heat exchanger are all connected to water-cooled unit two, with water-cooled unit one and water-cooled unit two connected in series.

[0009] Preferably, the pulverizing system has two sets connected in parallel, used to process the material in the material collector respectively.

[0010] Preferably, both the material collector and the discharge collector are equipped with air unloaders at their discharge ports.

[0011] Preferably, the material collector is provided with a vibration structure to prevent material blockage, the vibration structure including a buffer spring and a vibrator.

[0012] Preferably, the exhaust port of the material collector is connected to a secondary collector via a pipe for secondary collection of the material escaping from the material collector.

[0013] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:

[0014] This solution optimizes the material handling process. Metal materials sequentially pass through a chip cutter, chip breaker, and pulverizer, progressively refining the material and reducing processing difficulty. This ensures a more regular product shape and uniform particle size distribution, meeting the production process's demand for high-quality metal powder. Secondly, regarding cooling performance, this solution effectively controls the temperature during production by configuring heat exchangers at key production nodes and controlling them with water-cooled units. This prevents changes in material properties and equipment overheating, thereby extending equipment life and ensuring continuous and stable production. Attached Figure Description

[0015] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0016] Figure 1 This is a schematic plan view of the entire utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 3 for Figure 2 A magnified view of A in the middle.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Chip cutter; 11. Fan 1; 12. Heat exchanger 1; 13. Fan 2; 14. Heat exchanger 2; 2. Chip breaker; 21. Fan 3; 22. Heat exchanger 3; 23. Material collector; 24. Vibrating structure; 241. Buffer spring; 242. Vibrator; 25. Secondary collector; 3. Powdering system; 31. Powderer; 32. Feed heat exchanger; 33. Discharge fan; 34. Discharge heat exchanger; 35. Discharge collector; 4. Water-cooled unit 1; 5. Water-cooled unit 2; 6. Airlock unloader. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0022] Existing mechanically produced powders have irregular shapes and wide particle size distributions, requiring long grinding times to meet size requirements. In addition, prolonged operation of mechanical equipment may lead to overheating, changes in material properties, or equipment damage.

[0023] This solution processes metal materials sequentially using a chip cutter 1, a chip breaker 2, and a powder maker 31. By progressively refining the material, the difficulty of material processing is reduced, the workload of individual equipment is decreased, product dimensional accuracy is ensured, and high-quality metal powder is provided. Furthermore, heat exchangers are designed before and after the chip cutter 1, chip breaker 2, and powder maker 31, making it easier to cool the progressively refined material, facilitating effective temperature management, and ensuring the stability of equipment operation.

[0024] After introducing the basic principles of this utility model, various non-limiting embodiments of this utility model are described in detail below. Any quantity of elements in the accompanying drawings is for illustrative purposes only and not for limitation, and any naming is for distinction only and has no limiting meaning.

[0025] The principles and spirit of this utility model will be explained in detail below with reference to several representative embodiments.

[0026] Example 1

[0027] A water-cooled metal powder making equipment, such as Figure 1-2As shown, the system includes a chip cutter 1, a chip breaker 2, and a pulverizing system 3 connected in sequence. The chip cutter 1 is used to cut metal materials into flakes. The air inlet of the chip cutter 1 is connected in sequence to a fan 11 and a heat exchanger 12 via pipes, which blows in cold air during the operation of the chip cutter 1 to cool its interior. The outlet of the chip cutter 1 and the inlet of the chip breaker 2 are connected in sequence to a fan 13 and a heat exchanger 14 via pipes. The outlet of the chip breaker 2 is connected in sequence to a fan 21, a heat exchanger 22, and a material collector 23 via pipes. The flake material cut by the chip cutter 1 flows through the heat exchanger 14 under the action of the fan for cooling, and then enters the chip breaker 2 for processing. The chip breaker 2 processes the flake material into granules or small flakes, which then flow through the heat exchanger 22 under the action of the fan 21 for further cooling, and finally enter the material collector 23.

[0028] In this embodiment, there are two powder-making systems 3. Each system includes a powder maker 31. A feed heat exchanger 32 is fixedly connected to the air inlet of the powder maker 31 via a pipe. A discharge fan 33, a discharge heat exchanger 34, and a discharge collector 35 are sequentially fixedly connected to the discharge outlet of the powder maker 31 via pipes. The feed inlet of the powder maker 31 is fixedly connected to the discharge outlet of the material collector 23 via a pipe. The material collector 23 collects the material processed by the chip breaker 2 and distributes it into the powder-making system 3. The feed heat exchanger 32 blows in cold air during the operation of the powder maker 31 to reduce its internal temperature. In this embodiment, the air inlet and feed outlet of the powder maker 31 are the same opening. The product produced by the powder maker 31 is cooled by the discharge heat exchanger 34 under the action of the discharge fan 33 and finally stored in the discharge collector 35.

[0029] In this embodiment, both the material collector 23 and the discharge collector 35 are cyclone collectors. A wind unloader 6 is fixedly installed at the discharge port of both the material collector 23 and the discharge collector 35 to prevent the fan from disturbing the material inside the material collector 23 and the discharge collector 35, thereby effectively avoiding dust.

[0030] The chip cutter 1, chip breaker 2, pulverizer 31, material collector 23, discharge collector 35 and airlock unloader 6 mentioned above are all existing technologies. Their structures have not been changed in this solution, and will not be described in detail here.

[0031] like Figure 1-2As shown, heat exchanger 12 and the feed heat exchange air are both connected to water-cooled unit 4, while heat exchangers 14, 22, and 34 are all connected to water-cooled unit 5. Water-cooled unit 4 controls the temperature of the cold air blown into the inlets of the chipper 1 and the pulverizer 31, while water-cooled unit 5 controls the temperature at which the materials processed by the chipper 1, chip breaker 2, and pulverizer 31 are cooled during heat exchange. In this embodiment, water-cooled unit 4 and water-cooled unit 5 are connected in series to provide a certain degree of redundancy. If one water-cooled unit fails, the other water-cooled unit can continue to maintain the cooling requirements of the system to a certain extent, ensuring the stability of the system. In addition, the design of two water-cooled units also reduces the power load of the system.

[0032] The workflow of this solution is as follows: First, the metal material enters the chip cutter 1 and is cut into flakes. During this process, heat exchanger 12 continuously cools the inside of the chip cutter 1 through fan 11. Second, driven by fan 23, these flakes flow through heat exchanger 24 for cooling and then enter the chip breaker 2 for secondary crushing. The chip breaker 2 processes the flakes into small particles or even finer flakes. Third, driven by fan 31, the secondary crushed material undergoes another heat exchange... The material in the material collector 22 is cooled and collected by the material collector 23. Subsequently, the material in the material collector 23 is discharged through the airlock unloader 6 and enters the pulverizer 31 through a pipeline. Simultaneously, the feed heat exchanger 32, driven by the discharge fan 33, continuously supplies cold air to the air inlet of the pulverizer 31 to maintain the material's low temperature during processing. Finally, driven by the discharge fan 33, the product produced by the pulverizer 31 is cooled by the discharge heat exchanger 34 and stored in the discharge collector 35. Throughout the entire process, the water-cooled unit 4 controls the cooling of the equipment's air inlet, ensuring that the air entering the system is at a low temperature, thus assisting the entire cooling process. The water-cooled unit 5 controls the temperature inside the pipeline and the material, ensuring proper cooling of the material during transport.

[0033] Example 2

[0034] Its main difference from Example 1 is:

[0035] like Figure 3As shown, the material collector 23 is equipped with a vibration structure 24 to prevent material blockage. The vibration structure 24 includes a vibrator 242 and a buffer spring 241. The vibrator 242 is fixedly installed on the material collector 23 and generates periodic vibrations to break the friction and adhesion between material particles, thereby preventing the material from forming a stable accumulation or "bridging" inside the collector, effectively reducing the possibility of blockage. The operating frequency and amplitude of the vibrator 242 can be adjusted according to the specific material characteristics to achieve the best anti-blocking effect. The buffer spring 241 is fixedly installed between the material collector 23 and the support frame used to fix the material collector 23, and is used to mitigate the strong impact generated by the vibrator 242 during operation, absorb excess vibration energy, and maintain the positional stability of the material collector 23.

[0036] In this embodiment, the vibrator 242 is an air turbine vibrator, which is existing technology. This solution does not change its structure, and will not be described in detail here.

[0037] Example 3

[0038] The main difference between it and Example 2 is that:

[0039] like Figure 1-2 As shown, the exhaust port of the material collector 23 is connected to a secondary collector 25 through a pipe. The material collector 23 is prone to generating powder dust under the action of the vibrator 242, and the exhaust gas is difficult to meet the emission standards. In this embodiment, the secondary collector 25 is used to collect the gas after it has been processed by the material collector 23, thereby improving the collection efficiency and achieving exhaust gas purification.

[0040] The secondary collector 25 is a cyclone collector. A closed air unloader 6 is fixedly installed at the outlet of the secondary collector 25. In this embodiment, both the secondary collector 25 and the closed air unloader 6 are existing technologies and will not be described in detail here.

[0041] The above-described preferred embodiments of the present invention are provided for guidance, but it will be apparent to those skilled in the art that such embodiments are provided merely by way of example. Many modifications, alterations, and alternatives will arise in the mind and spirit of the present invention without departing from its intent. It should be understood that various alternatives to the embodiments of the present invention described herein may be employed in the practice of the present invention. The appended claims are intended to define the scope of protection of the present invention and therefore cover the modular compositions, equivalents, or alternatives within the scope of these claims.

Claims

1. A water-cooled metal powder making device, characterized in that, include: A chip cutter (1) is provided. The air inlet of the chip cutter (1) is connected in sequence to a blower (11) and a heat exchanger (12) via a pipe. The outlet of the chip cutter (1) is connected in sequence to a blower (23), a heat exchanger (24), a chip breaker (2), a blower (31), a heat exchanger (32), and a material collector (23) via a pipe. The outlet of the material collector (23) is connected in sequence to a pulverizing system (3) via a pipe. The pulverizing system (3) includes a pulverizer (31). The air inlet of the pulverizer (31) is connected in sequence to a feed heat exchanger (32) via a pipe. The outlet of the pulverizer (31) is connected in sequence to a discharge blower (33), a discharge heat exchanger (34), and a discharge collector (35) via a pipe. The outlet of the material collector (23) is fixedly connected to the inlet of the pulverizer (31) via a pipe.

2. The water-cooled metal powder making equipment according to claim 1, characterized in that: The first heat exchanger (12) and the feed heat exchanger (32) are both connected to the first water-cooled unit (4), and the second heat exchanger (14), the third heat exchanger (22) and the discharge heat exchanger (34) are all connected to the second water-cooled unit (5). The first water-cooled unit (4) and the second water-cooled unit (5) are connected in series.

3. The water-cooled metal powder making equipment according to claim 1, characterized in that: The powder making system (3) has two sets connected in parallel, which are used to process the material in the material collector (23) respectively.

4. The water-cooled metal powder making equipment according to claim 1, characterized in that: Both the material collector (23) and the discharge collector (35) are equipped with air unloaders (6) at their discharge ports.

5. A water-cooled metal powder making device according to claim 4, characterized in that: The material collector (23) is provided with a vibration structure (24) for preventing material blockage. The vibration structure (24) includes a buffer spring (241) and a vibrator (242).

6. The water-cooled metal powder making equipment according to claim 5, characterized in that: The exhaust port of the material collector (23) is connected to a secondary collector (25) via a pipe for secondary collection of the material escaping from the material collector (23).

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