Stirring equipment for copper powder production

Abstract

The utility model relates to the technical field of copper powder production, in particular to stirring equipment for copper powder production, which comprises a stirring barrel, a vacuum pump fixedly mounted at the top of the stirring barrel, an exhaust pipe mounted at the bottom of the vacuum pump and vertically inserted into the stirring barrel, and a nitrogen generator fixedly mounted at the top of the stirring barrel. Two nitrogen output pipes are fixedly installed at the bottom of the nitrogen generator and vertically inserted into the stirring barrel, and a circulation assembly is arranged at one end of the stirring barrel. According to the copper powder stirring device, oxygen in the stirring barrel is pumped out by the vacuum pump before the copper powder is stirred, so that the oxygen content in the stirring barrel is kept at a lower level, then nitrogen generated by the nitrogen generator enters the stirring barrel, the copper powder cannot be oxidized when the copper powder is stirred at the moment, and subsequent use of the copper powder is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of copper powder production technology, and in particular to a stirring device for copper powder production. Background Technology

[0002] Copper powder is a metal powder made from pure copper and pulverized into fine particles. It retains the electrical conductivity, thermal conductivity, and ductility of copper. Copper powder is widely used in powder metallurgy, electro-carbon products, electronic materials, metal coatings, chemical catalysts, filters, heat sinks and other electromechanical parts, as well as in the electronic and aerospace fields.

[0003] Copper powder is an important basic material in modern industry and is widely used. The mixing equipment is a key piece of equipment in the copper powder production process. When the copper powder is mixed by traditional mixing equipment, it is very easy for the copper powder to oxidize. The key properties of the copper powder, such as electrical conductivity and thermal conductivity, will be significantly reduced after oxidation, which is not conducive to the subsequent use of the copper powder. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a mixing device for copper powder production.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A mixing device for copper powder production includes a mixing tank. A vacuum pump is fixedly installed on the top of the mixing tank, and an extraction pipe is installed at the bottom of the vacuum pump. The extraction pipe is vertically inserted into the mixing tank. A nitrogen generator is fixedly installed on the top of the mixing tank, and two nitrogen output pipes are fixedly installed at the bottom of the nitrogen generator. The nitrogen output pipes are vertically inserted into the mixing tank. A circulation component is provided at one end of the mixing tank.

[0007] In addition, a preferred structure is that the circulation component includes an output pipe, one end of which is horizontally inserted into the mixing tank, and a circulation fan is provided at the bottom of the output pipe, which is fixedly installed on the side wall of the mixing tank.

[0008] In addition, a preferred configuration is that the bottom of the circulating fan is provided with a conveying pipe, and the bottom of the conveying pipe is provided with a nitrogen filter.

[0009] In addition, a preferred structure is that the nitrogen filter has an input pipe at the bottom, one end of which is horizontally inserted into the mixing tank, and a filter screen is provided at the other end of the input pipe.

[0010] In addition, a preferred structure is that a rotary motor is fixedly installed on the top of the mixing tank, and the rotary motor drives a rotating shaft located inside the mixing tank. The rotating shaft is equipped with a ribbon-type paddle and an anchor-type wall scraper, and the anchor-type wall scraper is in contact with the inner wall of the mixing tank.

[0011] Furthermore, in a preferred configuration, the mixing tank has a copper powder inlet at the top and a copper powder outlet at the bottom.

[0012] The beneficial effects of this utility model are as follows:

[0013] In this invention, before stirring the copper powder, a vacuum pump extracts the oxygen from the stirring tank, keeping the oxygen content in the stirring tank at a low level. Then, a nitrogen generator produces nitrogen gas which enters the stirring tank. At this time, the copper powder will not oxidize when it is stirred, which facilitates the subsequent use of the copper powder. Attached Figure Description

[0014] Figure 1 This utility model provides a schematic diagram of the overall structure of a stirring device for copper powder production. Figure 1 ;

[0015] Figure 2 This utility model provides a schematic diagram of the overall structure of a stirring device for copper powder production. Figure 2 ;

[0016] Figure 3 This is a schematic diagram of the internal structure of a stirring device for copper powder production proposed in this utility model;

[0017] Figure 4 This is a schematic diagram of the stirring unit structure of a stirring device for copper powder production proposed in this utility model;

[0018] Figure 5 This is a schematic diagram of the circulation component structure of a stirring device for copper powder production proposed in this utility model.

[0019] In the diagram: 1. Mixing tank, 101. Copper powder inlet, 102. Copper powder outlet, 2. Rotary motor, 3. Vacuum pump, 31. Evacuation pipe, 4. Nitrogen generator, 41. Nitrogen output pipe, 5. Circulation assembly, 51. Output pipe, 52. Circulation fan, 53. Conveying pipe, 54. Nitrogen filter, 55. Input pipe, 551. Filter screen, 6. Rotary shaft, 7. Ribbon blade, 8. Anchor scraper. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figure 1-5A mixing device for copper powder production includes a mixing tank 1, a vacuum pump 3 fixedly installed on the top of the mixing tank 1, an exhaust pipe 31 installed at the bottom of the vacuum pump 3, the exhaust pipe 31 being vertically inserted into the mixing tank 1, a nitrogen generator 4 fixedly installed on the top of the mixing tank 1, two nitrogen output pipes 41 fixedly installed at the bottom of the nitrogen generator 4, the nitrogen output pipes 41 being vertically inserted into the mixing tank 1, and a circulation component 5 provided at one end of the mixing tank 1.

[0022] The circulation component 5 includes an output pipe 51, one end of which is horizontally inserted into the mixing tank 1. A circulation fan 52 is installed at the bottom of the output pipe 51 and is fixedly installed on the side wall of the mixing tank 1. The circulation fan 52 moves the nitrogen in the mixing tank 1 and then enters the input pipe 55 to facilitate the circulation of nitrogen.

[0023] Meanwhile, a conveying pipe 53 is installed at the bottom of the circulating fan 52, and a nitrogen filter 54 is installed at the bottom of the conveying pipe 53. The nitrogen filter 54 filters the nitrogen, making it easier for the nitrogen to be reintroduced into the mixing tank 1.

[0024] Furthermore, the nitrogen filter 54 is equipped with an inlet pipe 55 at the bottom. One end of the inlet pipe 55 is horizontally inserted into the mixing tank 1, and a filter screen 551 is provided at the other end of the inlet pipe 55. After passing through the inlet pipe 55, the nitrogen enters the nitrogen filter 54 for filtration, while the filter screen 551 prevents copper powder from entering the inlet pipe 55.

[0025] Meanwhile, a rotary motor 2 is fixedly installed on the top of the mixing tank 1. The rotary motor 2 drives a rotating shaft 6 located inside the mixing tank 1. The rotating shaft 6 is equipped with a ribbon-type paddle 7 and an anchor-type wall scraper 8. The anchor-type wall scraper 8 contacts the inner wall of the mixing tank 1. The ribbon-type paddle 7 stirs the copper powder, and the anchor-type wall scraper 8 scrapes off the copper powder adhering to the inner wall of the mixing tank 1.

[0026] Furthermore, the top of the mixing tank 1 is provided with a copper powder inlet 101, and the bottom of the mixing tank 1 is provided with a copper powder outlet 102, which facilitates the entry and exit of copper powder.

[0027] In this embodiment, firstly, the copper powder inlet 101 is opened, and copper powder is placed into the mixing tank 1. If it is necessary to mix with other media, other media can also be poured into the mixing tank 1 through the copper powder inlet 101. Then, the copper powder inlet 101 is closed, and then the vacuum pump 3 is turned on. The vacuum pump 3 extracts the oxygen in the mixing tank 1 through the exhaust pipe 31, so that the oxygen content in the mixing tank 1 is maintained at a low level. The vacuum pump 3 is turned off, and then the nitrogen generator 4 is started. After the nitrogen generator 4 generates nitrogen, the nitrogen is output into the mixing tank 1 through the nitrogen output pipe 41. When the nitrogen content in the mixing tank 1 reaches a predetermined value, the nitrogen generator 4 stops working. At this time, the rotary motor 2 is started, and the rotary motor 2 drives the rotary shaft 6 to rotate. The ribbon blade 7 and the anchor scraper 8 will also rotate synchronously. The ribbon blade 7 stirs the copper powder, and the anchor scraper... The slurry 8 scrapes off the copper powder adhering to the inner wall of the mixing tank 1. At the same time, the circulating fan 52 is started, and the circulating fan 52 draws nitrogen gas from the mixing tank 1 into the nitrogen filter 54 through the inlet pipe 55 for filtration. The nitrogen gas also carries away some fine dust or impurities in the copper powder. The dust or impurities are filtered out in the nitrogen filter 54, and the copper powder is intercepted by the filter screen 551 and will not enter the inlet pipe 55. Then, the filtered nitrogen gas enters the outlet pipe 51 through the outlet pipe 53, and the outlet pipe 51 delivers nitrogen gas back into the mixing tank 1, thus realizing the circulation of nitrogen gas and making the inert environment in the mixing tank 1 more durable. After the mixing is finished, all components stop working. Then, the prepared nitrogen storage tank is aligned with the copper powder outlet 102, and the copper powder outlet 102 is opened to discharge the copper powder into the nitrogen storage tank for storage.

[0028] In this invention, before stirring the copper powder, the vacuum pump 3 extracts the oxygen from the stirring tank 1, so that the oxygen content in the stirring tank 1 is maintained at a low level. Then, the nitrogen generator 4 generates nitrogen and enters the stirring tank 1. At this time, when stirring the copper powder, the copper powder will not be oxidized, which is convenient for the subsequent use of the copper powder.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A mixing device for copper powder production, comprising a mixing tank (1), characterized in that, A vacuum pump (3) is fixedly installed on the top of the mixing tank (1), and a suction pipe (31) is installed at the bottom of the vacuum pump (3). The suction pipe (31) is vertically inserted into the mixing tank (1). A nitrogen generator (4) is fixedly installed on the top of the mixing tank (1). Two nitrogen output pipes (41) are fixedly installed at the bottom of the nitrogen generator (4). The nitrogen output pipes (41) are vertically inserted into the mixing tank (1). A circulation component (5) is provided at one end of the mixing tank (1).

2. The mixing equipment for copper powder production according to claim 1, characterized in that, The circulation component (5) includes an output pipe (51), one end of which is horizontally inserted into the mixing tank (1). A circulation fan (52) is provided at the bottom of the output pipe (51), and the circulation fan (52) is fixedly installed on the side wall of the mixing tank (1).

3. The mixing equipment for copper powder production according to claim 2, characterized in that, The bottom of the circulating fan (52) is provided with a conveying pipe (53), and the bottom of the conveying pipe (53) is provided with a nitrogen filter (54).

4. The mixing equipment for copper powder production according to claim 3, characterized in that, The nitrogen filter (54) is provided with an input pipe (55) at the bottom. One end of the input pipe (55) is horizontally inserted into the mixing tank (1), and a filter screen (551) is provided at the other end of the input pipe (55).

5. The mixing equipment for copper powder production according to claim 1, characterized in that, A rotary motor (2) is fixedly installed on the top of the mixing tank (1). The rotary motor (2) drives a rotating shaft (6) located inside the mixing tank (1). The rotating shaft (6) is equipped with a ribbon blade (7) and an anchor scraper (8). The anchor scraper (8) is in contact with the inner wall of the mixing tank (1).

6. The mixing equipment for copper powder production according to claim 1, characterized in that, The mixing tank (1) is provided with a copper powder inlet (101) at the top and a copper powder outlet (102) at the bottom.

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