Precious metal particle manufacturing device

Abstract

The utility model discloses a precious metal particle manufacturing device in the technical field of metal granulation, which comprises a smelting crucible, the smelting crucible is provided with a discharge port, a granulation crucible is arranged below the discharge port, the lower end of the granulation crucible is provided with a liquid outlet communicated with an inner cavity of the granulation crucible, a cooling cabin is arranged below the liquid outlet, and the cooling cabin is communicated with the inner cavity of the granulation crucible. The upper end of the cooling cabin is provided with a liquid inlet corresponding to the liquid outlet nozzle in position, the liquid inlet is provided with a plurality of high-pressure water sprayers at intervals in the circumferential direction, the inclination angles of the high-pressure water sprayers in the vertical direction are different, the lower end of the cooling cabin is provided with a discharging port, and an open collecting hopper is arranged on the west of the discharging port. By optimizing the structures and functions of all the parts, efficient and high-quality powder preparation of precious metal is achieved; the device has the advantages of simplicity and convenience in operation, high production efficiency, good powder quality and the like, and can be widely applied to the field of precious metal powder preparation.

Description

Technical Field

[0001] The utility model relates to the technical field of metal granulation, in particular to a device for manufacturing precious metal particles. Background Art

[0002] Precious metal powder production is an important link in industrial production. The particle size, shape and distribution of the powder have a direct impact on the performance of the product. At present, the main technologies for precious metal powder production include mechanical grinding, gas phase method and liquid phase method. However, these methods have shortcomings in production efficiency, energy consumption and powder quality. As a new powder production technology, water atomization has the advantages of simple operation, high production efficiency and controllable powder particle size. Therefore, it has broad application prospects in the field of precious metal powder production. However, the existing water atomization device still has shortcomings in atomization effect, powder quality and other aspects. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the technical problem to be solved by the present invention is: how to improve the atomization effect and powder quality of the water atomization device.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A device for manufacturing precious metal particles comprises a smelting crucible, the smelting crucible is provided with a discharge port, a granulation crucible is arranged below the discharge port, the lower end of the granulation crucible is provided with a liquid outlet connected to the inner cavity of the granulation crucible, a cooling chamber is provided below the liquid outlet, the upper end of the cooling chamber is provided with a liquid inlet corresponding to the position of the liquid outlet nozzle, the liquid inlet is provided with a plurality of high-pressure water nozzles arranged at intervals along the circumference, the inclination angles of the plurality of high-pressure water nozzles in the vertical direction are all different, the lower end of the cooling chamber is provided with a discharge port, and an open collecting hopper is provided below the discharge port.

[0006] Furthermore, it also includes a control system, which is used to control the temperature of the melting crucible and the granulation crucible and the water spraying pressure and frequency of the high-pressure water nozzle.

[0007] Furthermore, the smelting crucible is made of quartz, and the granulating crucible is made of graphite.

[0008] Furthermore, the liquid outlet is provided with a liquid outlet nozzle for converging and flowing out the molten metal in the granulation crucible.

[0009] Furthermore, the liquid outlet is funnel-shaped.

[0010] Furthermore, the outer wall of the smelting crucible is surrounded by a smelting coil, and the outer wall of the granulating crucible is surrounded by a heating and heat preservation coil.

[0011] The beneficial effects of the utility model are:

[0012] By arranging a plurality of high-pressure water nozzles, when the molten metal in the granulation crucible flows downward from the liquid outlet to the liquid inlet, the high-pressure spraying action of the plurality of high-pressure water nozzles causes the molten metal to be atomized along with the high-pressure water, and forms granules under the cooling action of the cooling chamber. Moreover, the inclination angles of the plurality of the above-mentioned high-pressure water nozzles in the vertical direction are all different, that is, the plurality of high-pressure water nozzles can impact the molten metal from different angles, thereby improving the uniformity of the granulation of the molten metal, and the particle size of the metal powder forming can be adjusted by controlling the water pressure of the high-pressure water nozzles, thereby improving the overall quality of the metal powder forming. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the liquid outlet nozzle of the utility model;

[0015] Marked in the figure are, 1- melting crucible, 2- granulation crucible, 3- liquid outlet, 4- high-pressure water nozzle, 5- liquid inlet, 6- cooling chamber, 7- discharge port, 8- collecting hopper, 101- melting coil, 201- heating and insulation coil, 202- liquid outlet nozzle. DETAILED DESCRIPTION

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] according to Figure 1 As shown, an embodiment of the present application proposes a precious metal particle manufacturing device, comprising a smelting crucible 1, the smelting crucible 1 is provided with a discharge port 7, a granulation crucible 2 is arranged below the discharge port 7, the lower end of the granulation crucible 2 is provided with a liquid outlet 3 connected to the inner cavity of the granulation crucible 2, a cooling chamber 6 is provided below the liquid outlet 3, the upper end of the cooling chamber 6 is provided with a liquid inlet 5 corresponding to the position of the liquid outlet 3, the liquid inlet 5 is provided with a plurality of high-pressure water nozzles 4 arranged at intervals along the circumferential direction, the inclination angles of the plurality of high-pressure water nozzles 4 in the vertical direction are all different, the lower end of the cooling chamber 6 is provided with a discharge port 7, and an open collecting hopper 8 is provided below the discharge port 7.

[0018] First of all, it should be stated that by setting up multiple high-pressure water nozzles 4, when the molten metal in the granulation crucible 2 flows downward from the liquid outlet 3 to the liquid inlet 5, the high-pressure spraying action of the multiple high-pressure water nozzles 4 causes the molten metal to be atomized along with the high-pressure water, and forms granules under the cooling action of the cooling chamber 6, and the inclination angles of the multiple high-pressure water nozzles 4 in the vertical direction are all different, that is, the multiple high-pressure water nozzles 4 can impact the molten metal from different angles, thereby improving the uniformity of the granulation of the molten metal, and the particle size of the metal powder forming can be adjusted by controlling the water pressure of the high-pressure water nozzles 4, thereby improving the overall quality of the metal powder forming.

[0019] The high-pressure water nozzle 4 achieves high-pressure water atomization through a high-pressure water pipe and a high-pressure water pump. Specifically, the water pump is connected to the water tank and the high-pressure water nozzle via a water pipe, providing a stable water flow and pressure. The rational design of the water pump and water pipe connection effectively prevents water leakage and pressure fluctuations, ensuring the stability and continuity of the water atomization process. The system also includes a control system for controlling the temperature of the melting crucible 1 and the granulating crucible 2, as well as the water pressure and frequency of the high-pressure water nozzle 4.

[0020] Specifically, the outer wall of the melting crucible 1 is densely surrounded by melting coils 101, while the outer wall of the granulating crucible 2 is densely surrounded by heating and insulation coils 201. This comprehensive design ensures uniform and comprehensive heating. The melting crucible 1 is made of quartz to withstand high-temperature molten metal; the granulating crucible 2 is made of graphite to reduce the adhesion of molten metal to the inner wall of the crucible.

[0021] like Figure 2 As shown, in order to further improve the quality of metal granulation, the above-mentioned liquid outlet 3 is provided with a liquid outlet nozzle 202 for bundling the metal liquid in the granulation crucible 2 to flow out. The molten metal liquid in the granulation crucible 2 can be bundled from the liquid outlet such as the liquid inlet 5 at a certain temperature. A plurality of high-pressure water nozzles 4 synchronously realize high-pressure atomization spraying. Under the impact of the high-pressure water mist, the water mist carries granular metal droplets into the cooling chamber 6 and gradually forms metal powder. Moreover, the liquid outlet nozzle 202 is funnel-shaped, which improves the flow efficiency of the metal liquid.

[0022] In summary, the embodiment of the present application proposes a precious metal particle manufacturing device, comprising a smelting crucible 1, the smelting crucible 1 is provided with a discharge port 7, a granulation crucible 2 is arranged below the discharge port 7, the lower end of the granulation crucible 2 is provided with a liquid outlet 3 connected to the inner cavity of the granulation crucible 2, a cooling chamber 6 is provided below the liquid outlet 3, the upper end of the cooling chamber 6 is provided with a liquid inlet 5 corresponding to the position of the liquid outlet 3, the liquid inlet 5 is provided with a plurality of high-pressure water nozzles 4 arranged at intervals along the circumferential direction, and the inclination angles of the plurality of high-pressure water nozzles 4 in the vertical direction are all different, the lower end of the cooling chamber 6 is provided with a discharge port 7, and an open collecting hopper 8 is provided below the discharge port 7. By optimizing the structure and function of each part, efficient and high-quality powdering of precious metals is achieved; the device has the advantages of simple operation, high production efficiency, good powder quality, etc., and can be widely used in the field of precious metal powdering.

Claims

1. A device for producing precious metal particles, characterized in that: The invention comprises a smelting crucible (1), wherein the smelting crucible (1) is provided with a discharge port (7), a granulation crucible (2) is provided below the discharge port (7), a liquid outlet (3) communicating with the inner cavity of the granulation crucible (2) is provided at the lower end of the granulation crucible (2), a cooling chamber (6) is provided below the liquid outlet (3), a liquid inlet (5) corresponding to the position of the liquid outlet (3) is provided at the upper end of the cooling chamber (6), a plurality of high-pressure water nozzles (4) are provided at intervals along the circumference of the liquid inlet (5), and the inclination angles of the plurality of high-pressure water nozzles (4) in the vertical direction are all different, a discharge port (7) is provided at the lower end of the cooling chamber (6), and an open collecting hopper (8) is provided below the discharge port (7).

2. A precious metal particle manufacturing device according to claim 1, characterized in that: The invention also comprises a control system, which is used to control the temperature of the melting crucible (1) and the granulating crucible (2) and the water spraying pressure and frequency of the high-pressure water nozzle (4).

3. The device for producing precious metal particles according to claim 1, characterized in that: The smelting crucible (1) is made of quartz, and the granulation crucible (2) is made of graphite.

4. The device for producing precious metal particles according to claim 1, characterized in that: The liquid outlet (3) is provided with a liquid outlet nozzle (202) for allowing the molten metal in the granulation crucible (2) to flow out in a bundle.

5. The device for producing precious metal particles according to claim 4, characterized in that: The liquid outlet (202) is funnel-shaped.

6. The device for producing precious metal particles according to claim 1, characterized in that: The outer wall of the smelting crucible (1) is surrounded by a smelting coil (101), and the outer wall of the granulating crucible (2) is surrounded by a heating and heat-insulating coil (201).

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