A water-cooled metal powder making device and a method of using the same

Abstract

The present invention provides a water-cooled metal powder making equipment and a use method thereof, belonging to the technical field of metal powder making equipment, comprising a chip cutter, wherein an air inlet of the chip cutter is sequentially connected to a fan 1 and a heat exchanger 1 through a pipeline, and an outlet of the chip cutter is sequentially connected to a fan 2, a heat exchanger 2, a chip breaker, a fan 3, a heat exchanger 3 and a material collector through a pipeline, and a discharge port of the material collector is connected to a powder making system through a pipeline, and the powder making system comprises a powder making machine, wherein an air inlet of the powder making machine is connected to a feed heat exchanger through a pipeline, and a discharge fan, a discharge heat exchanger and a discharge collector are sequentially connected to the discharge port of the powder making machine through a pipeline, and the discharge port of the material collector is fixedly connected to the feed port of the powder making machine through a pipeline; this scheme optimizes the material processing flow, meets the demand for high-quality metal powder in the production process by gradually refining the material, effectively controls the temperature in the production process, and prevents material performance changes and equipment overheating problems.

Description

Technical Field

[0001] The present invention relates to the technical field of metal powder making equipment, and in particular to a water-cooled metal powder making equipment and a use method thereof. Background Art

[0002] The production of metal powder plays a vital role in modern industry. Its application range is wide, covering additive manufacturing, metal injection molding, thermal spraying, metallurgy and alloy manufacturing, and chemical industry. In order to meet the needs of these applications, there are many methods and equipment for producing metal powder. For example, gas atomization equipment uses high-speed gas flow to break molten metal into fine droplets and cool and solidify; water atomization equipment uses high-pressure water flow to achieve a similar effect; rotating electrode method equipment is suitable for high-melting point metals, and generates fine powder by rotating and evaporating metal electrodes at high speed; and mechanical powder making is achieved by grinding solid metal for a long time until the desired particle size is reached.

[0003] Compared with the above methods, mechanical pulverizing is the most common method. It is relatively low in cost, highly flexible, can work at room temperature, does not require a smelting process, is suitable for metals of various hardnesses, and is widely used in all walks of life. However, mechanical pulverizing also has its disadvantages: due to the physical crushing process, the products of mechanical pulverizing are irregular in shape, with a wide particle size distribution, and require a long time of grinding to meet the size requirements; in addition, mechanical equipment working for a long time may cause overheating, resulting in changes in material properties, or cause equipment damage and other problems. Summary of the invention

[0004] The object of the present invention is to provide a water-cooled metal powder making equipment and a method of using the same to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

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

[0007] A chip cutting machine, wherein the air inlet of the chip cutting machine is connected to fan 1 and heat exchanger 1 in sequence through a pipeline, the outlet of the chip cutting machine is connected to fan 2, heat exchanger 2, chip breaker, fan 3, heat exchanger 3 and material collector in sequence through a pipeline, the discharge port of the material collector is connected to a powder making system through a pipeline, the powder making system comprises a powder making machine, the air inlet of the powder making machine is connected to a feed heat exchanger through a pipeline, the discharge port of the powder making machine is connected to a discharge fan, a discharge heat exchanger and a discharge collector in sequence through a pipeline, and the discharge port of the material collector is fixedly connected to the feed port of the powder making machine through a pipeline.

[0008] Preferably, the heat exchanger 1 and the feed heat exchanger are both connected to water cooling unit 1, the heat exchanger 2, the heat exchanger 3 and the discharge heat exchanger are all connected to water cooling unit 2, and the water cooling unit 1 and the water cooling unit 2 are connected in series.

[0009] Preferably, the powder making system has two sets connected in parallel, for processing the materials in the material collector respectively.

[0010] Preferably, both the material collector and the discharge collector are provided with wind dischargers at their discharge ports.

[0011] Preferably, a vibration structure for preventing material blockage is provided on the material collector, and the vibration structure includes a buffer spring and a vibrator.

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

[0013] The present invention also provides a method for using a water-cooled metal powder making device, using the above-mentioned water-cooled metal powder making device, comprising the following steps:

[0014] S1, the heat exchanger continuously delivers cold air to the air inlet of the cutting machine through the fan, and the metal material enters the chip cutter and is cut into flake materials;

[0015] S2. Driven by the second fan, the flake material flows through the second fan and the second heat exchanger through the pipeline, the flake material is cooled by the second heat exchanger, and then enters the chip breaker for secondary crushing. The chip breaker crushes the flake material into granules or small flakes;

[0016] S3, driven by fan 3, the secondary crushed material flows through fan 3 and heat exchanger 3 through the pipeline, is cooled by heat exchanger 3, and finally enters the material collector;

[0017] S4. The material in the material collector is discharged through the air shut-off discharger and enters the mill through the pipeline for processing. At the same time, the feed heat exchanger continuously sends cold air to the air inlet of the mill under the action of the discharge fan;

[0018] S5. Driven by the discharge fan, the product produced by the mill flows through the discharge fan and the discharge heat exchanger through the pipeline, is cooled by the discharge heat exchanger, and finally enters the discharge collector for storage.

[0019] The beneficial effects of the above technical solution of the present invention are as follows:

[0020] This solution optimizes the material handling process. The metal materials pass through the chip cutter, chip breaker and powder making machine in turn. By gradually refining the materials, the difficulty of material handling is reduced, ensuring that the product shape is more regular and the particle size distribution is uniform, meeting the production process's demand for high-quality metal powder. Secondly, in terms of cooling performance, this solution effectively controls the temperature in the production process by configuring heat exchangers at key production nodes and controlling them with water cooling units, preventing material performance changes and equipment overheating problems, thereby extending equipment life and ensuring production continuity and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0022] Figure 1 It is a schematic diagram of the overall plan of the present invention;

[0023] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 3 for Figure 2 A is an enlarged view of the middle image.

[0025] Description of reference numerals:

[0026] 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. Vibration structure; 241. Buffer spring; 242. Vibrator; 25. Secondary collector; 3. Pulverizing system; 31. Pulverizing machine; 32. Feed heat exchanger; 33. Discharge fan; 34. Discharge heat exchanger; 35. Discharge collector; 4. Water cooling unit 1; 5. Water cooling unit 2; 6. Air shut-off unloader. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0028] The products of mechanical powder making in the existing technology are irregular in shape and have a wide particle size distribution. They require long-term grinding to reach the size requirements. Long-term operation of mechanical equipment may cause overheating, changes in material properties, or equipment damage.

[0029] This solution processes the metal material in sequence by designing a chip cutter 1, a chip breaker 2 and a powder making machine 31, and by gradually refining the material, the difficulty of material processing is reduced, the workload of a single device is reduced, the dimensional accuracy of the product is ensured, and the demand for high-quality metal powder is met. In addition, by designing heat exchangers before and after the chip cutter 1, the chip breaker 2 and the powder making machine 31, the gradually refined material is easier to cool, which facilitates effective temperature management and ensures the stability of equipment operation.

[0030] After introducing the basic principle of the present invention, various non-limiting embodiments of the present invention are described in detail below. The number of any element in the drawings is for illustration and not for limitation, and any naming is only for distinction and does not have any limiting meaning.

[0031] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0032] Example 1

[0033] A water-cooled metal powder making equipment, such as Figure 1-2 As shown, it includes a chip cutter 1, a chip breaker 2 and a powder making 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 fixedly connected to a fan 11 and a heat exchanger 12 in sequence through a pipeline, which is used to blow cold air into the chip cutter 1 during operation to cool down the inside of the chip cutter 1. A fan 2 13 and a heat exchanger 2 14 are fixedly connected in sequence between the discharge port of the chip cutter 1 and the feed port of the chip breaker 2 through a pipeline, and a fan 3 21, a heat exchanger 3 22 and a material collector 23 are fixedly connected to the discharge port of the chip breaker 2 through a pipeline. The flake material cut by the chip cutter 1 flows through the heat exchanger 2 14 to cool down under the action of the fan, and then enters the chip breaker 2 for processing. The chip breaker 2 is used to process the flake material into granular or small flake material, and then flows through the heat exchanger 3 22 to cool down under the action of the fan 3 21, and finally enters the material collector 23.

[0034] In this embodiment, there are two sets of powder making system 3, which includes a powder making machine 31. The air inlet of the powder making machine 31 is fixedly connected to a feed heat exchanger 32 through a pipeline. The discharge port of the powder making machine 31 is fixedly connected to a discharge fan 33, a discharge heat exchanger 34 and a discharge collector 35 through a pipeline in sequence. The feed port of the powder making machine 31 is fixedly connected to the discharge port of the material collector 23 through a pipeline. The material collector 23 is used to collect the materials processed by the chip breaker 2 and distribute them into the powder making system 3. The feed heat exchanger 32 is used to blow cold air into the powder making machine 31 when it is working to reduce the internal temperature of the powder making machine 31. In this embodiment, the air inlet and the feed port of the powder making machine 31 are the same opening. The product produced by the powder making machine 31 is cooled by the discharge heat exchanger 34 under the action of the discharge fan 33, and is finally stored in the discharge collector 35.

[0035] In this embodiment, the material collector 23 and the discharge collector 35 are both cyclone collectors, and wind dischargers 6 are fixedly installed at the discharge ports of 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.

[0036] The above-mentioned chip cutter 1, chip breaker 2, powder making machine 31, material collector 23, discharge collector 35 and air-locking discharger 6 are all existing technologies. Their structures are not changed in this solution and will not be repeated here.

[0037] like Figure 1-2 As shown, heat exchanger 1 12 and the feed heat exchange gas are connected to water cooling unit 1 4, and heat exchanger 2 14, heat exchanger 3 22 and discharge heat exchanger 34 are connected to water cooling unit 2 5. Water cooling unit 1 4 is used to control the temperature of the cold air blown into the air inlet of chip cutter 1 and powder making machine 31, and water cooling unit 2 5 is used to control the temperature of heat exchange and cooling during the material transmission process after being processed by chip cutter 1, chip breaker 2 and powder making machine 31. In this embodiment, water cooling unit 1 4 and water cooling unit 2 5 are connected in series to provide a certain degree of redundancy. If one of the water cooling units fails, the other water cooling unit can continue to maintain the cooling demand of the system to a certain extent, ensuring the stability of the system. In addition, the design of the two water cooling units also reduces the power load of the system.

[0038] The present invention also provides a method for using a water-cooled metal powder making device, using the above-mentioned water-cooled metal powder making device, comprising the following steps:

[0039] S1, the heat exchanger 12 continuously delivers cold air to the air inlet of the cutting machine through the fan 11, and the metal material enters the chip cutter 1 and is cut into flake materials;

[0040] S2, driven by the second fan 13, the flake material flows through the second fan 13 and the second heat exchanger 14 through the pipeline, the flake material is cooled by the second heat exchanger 14, and then enters the chip breaker 2 for secondary crushing, and the chip breaker 2 crushes the flake material into granules or small flakes;

[0041] S3, driven by the fan 3 21, the secondary crushed material flows through the fan 3 21 and the heat exchanger 3 22 through the pipeline, is cooled by the heat exchanger 3 22, and finally enters the material collector 23;

[0042] S4, the material in the material collector 23 is discharged through the air shut-off discharger 6 and enters the mill 31 through the pipeline. At the same time, the feed heat exchanger 32 continuously sends cold air to the air inlet of the mill 31 under the action of the discharge fan 33;

[0043] S5. Driven by the discharge fan 33, the product produced by the powder making machine 31 flows through the discharge fan 33 and the discharge heat exchanger 34 through the pipeline, is cooled by the discharge heat exchanger 34, and finally enters the discharge collector 35 for storage.

[0044] Example 2

[0045] The main difference between it and Example 1 is:

[0046] like Figure 3 As shown, a vibration structure 24 for preventing material blockage is provided on the material collector 23, and the vibration structure 24 includes a vibrator 242 and a buffer spring 241. The vibrator 242 is fixedly mounted on the material collector 23, and generates periodic vibrations to destroy the friction and adhesion between the material particles, thereby preventing the material from forming a stable accumulation or "bridge" inside the collector, effectively reducing the possibility of blockage. The working 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 mounted between the material collector 23 and the support frame for fixing the material collector 23, and is used to alleviate the strong impact generated by the vibrator 242 when working, absorb excess vibration energy, and maintain the stable position of the material collector 23.

[0047] In this embodiment, the vibrator 242 is an air turbine vibrator, which is a prior art. This solution does not change its structure, and it will not be described in detail here.

[0048] Example 3

[0049] The main difference between it and Example 2 is:

[0050] like Figure 1-2As shown, the exhaust port of the material collector 23 is connected to the secondary collector 25 through a pipeline. The material collector 23 is prone to generate 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 processed by the material collector 23 for the second time, thereby improving the collection efficiency and achieving exhaust gas purification.

[0051] The secondary collector 25 is a cyclone collector, and a wind-off discharger 6 is fixedly installed at the discharge port of the secondary collector 25. In this embodiment, the secondary collector 25 and the wind-off discharger 6 are both prior arts and will not be described in detail here.

[0052] The above-mentioned ideal embodiments of the present invention are used as inspiration, but it is obvious to those skilled in the art that such embodiments are provided by way of example only. Those skilled in the art will think of many changes, modifications and alternatives without departing from the thought and spirit of the present invention. It should be understood that in the process of practicing the present invention, various alternatives to the embodiments of the present invention described herein may be adopted. The attached claims are intended to define the scope of protection of the present invention, and therefore cover the modular composition, equivalent or alternatives within the scope of protection of these claims.

Claims

1. A water-cooled metal powder making equipment, characterized in that: include: A chip cutter (1), wherein the air inlet of the chip cutter (1) is connected to a fan (11) and a heat exchanger (12) in sequence through a pipeline, the outlet of the chip cutter (1) is connected to a fan (13), a heat exchanger (14), a chip breaker (2), a fan (21), a heat exchanger (22) and a material collector (23) in sequence through a pipeline, the discharge port of the material collector (23) is connected to a powder making system (3) through a pipeline, the powder making system (3) comprises a powder making machine (31), the air inlet of the powder making machine (31) is connected to a feed heat exchanger (32) through a pipeline, the discharge port of the powder making machine (31) is connected to a discharge fan (33), a discharge heat exchanger (34) and a discharge collector (35) in sequence through a pipeline, and the discharge port of the material collector (23) is fixedly connected to the feed port of the powder making machine (31) through a pipeline.

2. The water-cooled metal powder making equipment according to claim 1, characterized in that: The heat exchanger 1 (12) and the feed heat exchanger (32) are both connected to the water cooling unit 1 (4), the heat exchanger 2 (14), the heat exchanger 3 (22) and the discharge heat exchanger (34) are all connected to the water cooling unit 2 (5), and the water cooling unit 1 (4) and the water cooling unit 2 (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 materials in the material collector (23) respectively.

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

5. The water-cooled metal powder making equipment according to claim 4, characterized in that: The material collector (23) is provided with a vibration structure (24) for preventing material blockage, and the vibration structure (24) comprises 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 pipeline, and is used for secondary collection of the material escaping from the material collector (23).

7. A method for using a water-cooled metal powder making device, using the water-cooled metal powder making device according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1, the heat exchanger 1 (12) continuously supplies cold air to the air inlet of the cutting machine through the fan 1 (11), and the metal material enters the chip cutting machine (1) and is cut into flake material; S2, driven by the second fan (13), the flake material flows through the second fan (13) and the second heat exchanger (14) through the pipeline, the flake material is cooled by the second heat exchanger (14), and then enters the chip breaker (2) for secondary crushing, and the chip breaker (2) crushes the flake material into granules or small flakes; S3, driven by the fan three (21), the secondary crushed material flows through the fan three (21) and the heat exchanger three (22) through the pipeline, is cooled by the heat exchanger three (22), and finally enters the material collector (23); S4, the material in the material collector (23) is discharged through the air shut-off discharger (6), and enters the flour mill (31) through the pipeline for processing, and at the same time, the feed heat exchanger (32) continuously sends cold air to the air inlet of the flour mill (31) under the action of the discharge fan (33); S5. Driven by the discharge fan (33), the product produced by the powder making machine (31) flows through the discharge fan (33) and the discharge heat exchanger (34) through a pipeline, is cooled by the discharge heat exchanger (34), and finally enters the discharge collector (35) for storage.

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