Cooling chamber for preparing metal nanopowder

Abstract

The utility model relates to the technical field of metal nano powder preparation equipment, in particular to a cooling chamber for preparing metal nano powder, which comprises a cooling chamber outer cylinder and a cooling chamber outer cylinder, a cooling chamber inner cylinder is arranged inside the cooling chamber outer cylinder, the cooling chamber outer cylinder is horizontally arranged, and a collecting port is arranged on the bottom surface of the middle of the cooling chamber outer cylinder. A collecting opening device is installed on the outer side of the collecting opening, an observation opening is formed in the outer wall of the inclined upper portion of the cooling chamber outer cylinder, and cooling mechanisms are installed on the cooling chamber inner cylinder and the observation opening. According to the cooling chamber for preparing the metal nano powder, rapid and uniform cooling of the high-temperature metal nano powder is effectively achieved, agglomeration and phase change of nano particles are avoided, and therefore the stability and high quality of products are guaranteed. By arranging the observation opening and the cooling mechanism, an operator can monitor the state in the cooling chamber in real time in the preparation process, meanwhile, it is guaranteed that the observation opening cannot be damaged due to high temperature, and the operation safety and convenience are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of metal nano powder preparation equipment, in particular to a cooling chamber for preparing metal nano powder. Background Art

[0002] Arc plasma can prepare high-purity nanomaterials, which can fully evaporate and decompose the raw materials to form high-purity nanoparticles. The operation process of arc plasma is relatively simple. By controlling the conditions of arc discharge, the desired nanomaterials can be effectively synthesized. Compared with other nanomaterial preparation technologies, the arc plasma method has a lower production cost, which makes it more attractive in industrial-scale production. The arc plasma method can quickly synthesize nanomaterials in a shorter time and improve production efficiency. In addition, the preparation process is relatively environmentally friendly, with less waste and pollutants generated, which is conducive to the realization of green chemical production. In addition, the desired nanomaterials can be obtained by adjusting the parameters of arc plasma, such as discharge current, gas pressure and discharge atmosphere. However, during the preparation process, a smaller melting chamber will lead to a higher indoor temperature and large pressure fluctuations, which will affect the product. The high temperature of the material after melting needs to be cooled, but because the melting chamber is small and there is no independent cooling space, it affects the full cooling of the material. Utility Model Content

[0003] The utility model aims to provide a cooling chamber for preparing metal nanopowders, so as to solve the problem in the above background technology that the smelting chamber is too small and has no sufficient cooling space, thus affecting the product.

[0004] To achieve the above-mentioned purpose, the utility model provides a cooling chamber for preparing metal nanopowder, comprising a cooling outdoor cylinder, the cooling outdoor cylinder, a cooling indoor cylinder is arranged inside the cooling outdoor cylinder, the cooling outdoor cylinder is horizontally arranged, a collecting port is arranged on the middle bottom surface, a collecting port device is installed on the outside of the collecting port, an observation port is installed on the outer wall obliquely above the cooling outdoor cylinder, cooling mechanisms are installed on the cooling indoor cylinder and the observation port, and a cooling chamber inlet and a cooling chamber outlet are arranged at one end of the cooling outdoor cylinder.

[0005] Preferably, the cooling mechanism is a water cooling mechanism, an outer wall on one side of the observation port is connected to an observation water inlet, and a vacuum port is provided in the middle of the top of the outer cylinder of the cooling chamber.

[0006] Preferably, the cooling mechanism is an annular jacket layer, in which a cooling water chamber is arranged, and the cooling mechanism is arranged in the gap between the outer cylinder of the cooling room and the inner cylinder of the cooling room.

[0007] Preferably, a water inlet is provided at the bottom of the outer cylinder of the cooling room, and a water outlet is provided at the top of the outer cylinder of the cooling room.

[0008] Preferably, cooling chamber cones are installed at the front and rear ends of the cooling chamber outer cylinder to facilitate the flow of powder in the cooling chamber.

[0009] Preferably, an observation port cleaning unit is installed at the observation port, and the cleaning unit comprises an air pipe and an air cylinder connected to each other, and one end of the air pipe extends to the interior of the observation port.

[0010] Preferably, a cooling chamber support is installed on the outside of the cooling chamber outer cylinder.

[0011] Preferably, the collecting port device is a funnel-shaped structure, with a discharge pipe connected to the bottom end, and the top of the collecting port device is connected to the collecting port via a flange.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The unique double-layer cylinder design of the cooling chamber for preparing metal nanopowders includes a cylinder outside the cooling chamber and an inner cylinder inside the cooling chamber, which effectively realizes the rapid and uniform cooling of high-temperature metal nanopowders, avoids the agglomeration and phase change of nanoparticles, and thus ensures the stability and high quality of the product. By setting up an observation port and a cooling mechanism, the operator can monitor the status of the cooling chamber in real time during the preparation process, while ensuring that the observation port will not be damaged by high temperature, thereby improving the safety and convenience of operation. The collection port and collection port device at the bottom of the cylinder outside the cooling chamber are reasonably designed, which is convenient for collecting cooled metal nanopowders and improves production efficiency. The front and rear cone designs of the cooling chamber are conducive to the smooth flow of powder in the cooling chamber, further enhancing the cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front view structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the utility model.

[0017] The meaning of each number in the figure is:

[0018] 1. Cooling chamber outer cylinder; 2. Cooling chamber inner cylinder; 3. Cooling chamber outlet; 4. Cooling chamber inlet; 5. Cooling chamber cone; 6. Cooling chamber support; 7. Observation port; 8. Vacuum port; 9. Collection port device; 10. Observation port air outlet; 11. Water inlet; 12. Observation water inlet; 13. Water outlet. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] The utility model provides a cooling chamber for preparing metal nanopowder, such as Figure 1-Figure 3 As shown, it includes a cooling outdoor cylinder 1, a cooling outdoor cylinder 1, a cooling indoor cylinder 2 is arranged inside the cooling outdoor cylinder 1, the cooling outdoor cylinder 1 is horizontally arranged, a collecting port is arranged on the middle bottom surface, a collecting port device 9 is installed on the outside of the collecting port, an observation port 7 is installed on the outer wall obliquely above the cooling outdoor cylinder 1, and cooling mechanisms are installed at the cooling indoor cylinder 2 and the observation port 7. A cooling chamber inlet 4 and a cooling chamber outlet 3 are arranged at one end of the cooling outdoor cylinder 1 for material entry and exit. An inflation port and an exhaust port are also arranged on the cooling outdoor cylinder 1, and also include a vacuum pump and an exhaust pipe that are sequentially connected and finally connected to the exhaust port. An observation port blowing port 10 is also arranged below the observation port 7, and the observation port blowing port 10 can remove the products deposited on the observation port 7.

[0021] In this embodiment, the cooling mechanism is a water cooling mechanism, and the outer wall on one side of the observation port 7 is connected to an observation water inlet 12. A vacuum port 8 is provided in the middle of the top of the outer cylinder 1 of the cooling room, which is used to evacuate the internal space of the inner cylinder 2 of the cooling room. Firstly, it can reduce the contact between the powder and oxygen in the air, thereby reducing the risk of oxidation; secondly, the vacuum environment is conducive to controlling the cooling rate and temperature uniformity of the powder, further improving the product quality.

[0022] Specifically, the cooling mechanism is an annular jacket layer with a cooling water chamber arranged inside. The jacket layer of the cooling chamber is located between the inner side of the outer cylinder 1 of the cooling chamber and the outer side of the inner cylinder 2 of the cooling chamber, and is used to cool the cooling chamber. The jacket layer at the observation port 7 is located at the inner wall of the observation port 7, and is used to cool the observation port 7.

[0023] Furthermore, a water inlet 11 is provided at the bottom of the cooling outdoor cylinder 1, and a water outlet 13 is provided at the top of the cooling outdoor cylinder 1 for the inlet and outlet of cooling water.

[0024] Furthermore, cooling chamber cones 5 are installed at the front and rear ends of the cooling chamber outer cylinder 1 to facilitate the flow of powder in the cooling chamber.

[0025] Furthermore, an observation port cleaning unit is installed at the observation port 7 , and the cleaning unit includes an air pipe and an air cylinder connected to each other, and one end of the air pipe extends to the interior of the observation port 7 .

[0026] Furthermore, a cooling chamber support 6 is installed on the outside of the cooling chamber outer cylinder 1 to facilitate installation on a workbench.

[0027] Furthermore, the collecting port device 9 is a funnel-shaped structure, with a discharge pipe connected to the bottom end, and the top of the collecting port device 9 is connected to the collecting port through a flange.

[0028] When the cooling chamber for preparing metal nanopowder of the utility model is used, the metal nanopowder enters the cooling chamber through the cooling chamber inlet 4 interface, and after being cooled by the cooling chamber cylinder of the water cooling mechanism, a part of the metal nanopowder falls to the collecting port device 9 at the bottom of the cooling chamber, and the remaining metal nanopowder is brought into the cooling chamber outlet 3 by the gas, and then the metal nanopowder is transported to the collecting chamber.

[0029] This embodiment uses the cooling chamber for cooling metal nanopowder to cool the nano nickel powder.

[0030] The prepared nano nickel powder is transported to the cooling chamber by the carrier gas through the cooling chamber inlet 4. When the nano nickel powder contacts the water-cooled cooling chamber cylinder, the temperature drops. A portion of the nano nickel powder with poor fluidity falls to the collecting port device 9 at the bottom of the cooling chamber, and the remaining nano nickel powder enters the cooling chamber outlet 3 through the cone at the rear end of the cooling chamber.

[0031] The cones at the front and rear ends of the cooling chamber are used to improve the fluidity of the nano-nickel powder and prevent the nano-nickel powder from being deposited at the rear end of the cooling chamber.

[0032] During the working process of this example, it is necessary to maintain a circulating cooling water flow in the cooling chamber and the observation port 7 to ensure that the temperature of the equipment is kept at room temperature to avoid damage to the equipment and to enhance the condensation effect on the product.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A cooling chamber for preparing metal nanopowders, comprising a cooling chamber outer cylinder (1), characterized in that: The cooling outdoor cylinder (1) has a cooling indoor cylinder (2) disposed inside the cooling outdoor cylinder (1). The cooling outdoor cylinder (1) is horizontally disposed, and a collecting port is disposed on the middle bottom surface. A collecting port device (9) is installed outside the collecting port. An observation port (7) is installed on the upper oblique outer wall of the cooling outdoor cylinder (1). Cooling mechanisms are installed at the cooling indoor cylinder (2) and the observation port (7). A cooling chamber inlet (4) and a cooling chamber outlet (3) are disposed at one end of the cooling outdoor cylinder (1).

2. The cooling chamber for preparing metal nanopowder according to claim 1, characterized in that: The cooling mechanism is a water cooling mechanism, one side outer wall of the observation port (7) is connected to an observation water inlet (12), and a vacuum port (8) is provided in the middle of the top of the outer cylinder (1) of the cooling chamber.

3. The cooling chamber for preparing metal nanopowder according to claim 1, characterized in that: The cooling mechanism is an annular jacket layer, and a cooling water chamber is arranged inside the jacket layer. The cooling mechanism is arranged in the gap between the cooling chamber outer cylinder (1) and the cooling chamber inner cylinder (2).

4. The cooling chamber for preparing metal nanopowder according to claim 3, characterized in that: The bottom of the cooling outdoor cylinder (1) is provided with a water inlet (11), and the top of the cooling outdoor cylinder (1) is provided with a water outlet (13).

5. The cooling chamber for preparing metal nanopowder according to claim 1, characterized in that: The front end and the rear end of the cooling chamber outer cylinder (1) are both provided with cooling chamber cones (5).

6. The cooling chamber for preparing metal nanopowder according to claim 1, characterized in that: An observation port cleaning unit is installed at the observation port (7), and the cleaning unit comprises a connected air pipe and an air cylinder, and one end of the air pipe extends to the interior of the observation port (7).

7. The cooling chamber for preparing metal nanopowder according to claim 1, characterized in that: A cooling chamber support (6) is installed on the outside of the cooling chamber outer cylinder (1).

8. The cooling chamber for preparing metal nanopowder according to claim 1, characterized in that: The collecting port device (9) is a funnel-shaped structure, with a discharge pipe connected to the bottom end, and the top of the collecting port device (9) is connected to the collecting port via a flange.

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