Collecting chamber for preparing metal nanopowder
By designing the collection chamber of the upper and lower components of the cyclone, and using cyclone, thermal resistance, water cooling and vacuum pump technologies, the problem of inefficiency of traditional collection methods is solved, and efficient and accurate metal nanopowder collection is achieved, ensuring the quality and purity of the powder.
Patent Information
- Application Number
- CN202421649220.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-07-12
AI Technical Summary
Traditional metal nanopowder collection methods are inefficient, resulting in waste of materials, and the activity and high surface area of the nanopowder make it susceptible to environmental pollution or chemical changes, increasing the difficulty of collection.
A collection chamber including a cyclone upper assembly and a cyclone lower assembly is designed to separate the nanopowder by cyclone action, and to control the temperature using a thermal resistance, maintain stability in the water cooling mechanism and form a negative pressure environment to improve collection efficiency and quality.
The collection efficiency and quality of metal nanopowders are significantly improved, and the agglomeration or oxidation of nanopowders during the collection process is prevented, the purity and activity of the powder are ensured, and material waste is reduced.
Smart Images
Figure CN222873364U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of metal powder processing equipment, in particular to a collecting chamber for preparing metal nano powder. Background Art
[0002] In the preparation process of metal nanopowders, collection technology is a crucial link. With the rapid development of nanotechnology, metal nanopowders have attracted much attention due to their wide applications in materials science, catalysts, electronic engineering, biomedicine and other fields. However, in the process of preparing metal nanopowders, how to efficiently and accurately collect these tiny powder particles has always been a challenge faced by researchers and technicians.
[0003] Traditional collection methods are often affected by the small size, light weight, and easy dispersion of powder particles, resulting in low collection efficiency and even a large amount of material waste. In addition, the activity and high surface area of nanopowders also make them susceptible to environmental pollution or chemical changes, further increasing the difficulty of collection.
[0004] In order to overcome these problems, researchers and technicians have been exploring more efficient collection technologies. This includes improving the design of the collection device to increase its ability to capture tiny particles while reducing material loss during the collection process. These efforts not only help to improve the yield and quality of nanopowders, but also lay the foundation for the large-scale production and application of metal nanopowders. Utility Model Content
[0005] The purpose of the utility model is to provide a collection chamber for preparing metal nanopowders, so as to solve the problem that the traditional collection method proposed in the above background technology is often affected by the characteristics of small powder particle size, light weight, easy to float, etc., resulting in low collection efficiency and even a large amount of material waste. In addition, the activity and high surface area of nanopowders also make them susceptible to environmental pollution or chemical changes, which further increases the difficulty of collection.
[0006] To achieve the above-mentioned purpose, the utility model provides a collection chamber for preparing metal nanopowder, comprising a cyclone upper component and a cyclone lower component, a thermal resistor is installed on the top of the cyclone upper component, a carrier gas inlet is arranged on the lower side of the cyclone upper component, a carrier gas outlet is arranged on the upper side of the cyclone upper component, the bottom of the cyclone lower component is connected to a Y-type connecting device through a vacuum bellows, the bottom end of the Y-type connecting device is connected to a powder collection chamber, multiple collection chambers for preparing metal nanopowders can be arranged in series, and adjacent cyclone upper components are connected in sequence through the carrier gas inlet and the carrier gas outlet.
[0007] Preferably, the interior of the cyclone lower component has a cooling mechanism.
[0008] Preferably, the cooling mechanism is a water cooling mechanism, and a cooling water inlet and outlet is provided on one side of the cyclone lower component, the cooling water inlet and outlet include a water inlet and a water outlet, the water inlet is located at the bottom of the cyclone lower component, and the water outlet is located at the top of the cyclone lower component.
[0009] Preferably, the bottom of the cyclone lower assembly is a conical structure to facilitate the flow of powder to the powder collection chamber.
[0010] Preferably, the outer end of the carrier gas outlet is connected to an exhaust pipe, and the outer end of the exhaust pipe is connected to a vacuum pump.
[0011] Preferably, collection chamber supports are installed on the outer walls of both sides of the cyclone upper assembly.
[0012] Preferably, the cyclone upper component is a cylindrical structure, and the bottom end of the cyclone upper component is conical.
[0013] Preferably, the interior of the cyclone lower component is provided with an interlayer, and the interior of the interlayer is provided with a water cooling chamber.
[0014] Compared with the prior art, the utility model has the following beneficial effects:
[0015] In the collection chamber for preparing metal nanopowder, the collection efficiency and quality of metal nanopowder are significantly improved through unique structural design and functional configuration. Specifically, the synergistic effect of the cyclone upper component and the cyclone lower component enables the metal nanopowder carried by the carrier gas to form a vortex in the cyclone chamber, and the powder is effectively separated and deposited under the action of centrifugal force. At the same time, the temperature of the cyclone upper component is controlled by a thermal resistor to prevent the nanopowder from agglomerating or oxidizing due to high temperature during the collection process, thereby ensuring the purity and activity of the powder. The cooling mechanism inside the cyclone lower component, especially the design of the water cooling mechanism, further ensures the stability of the powder during the collection process. The bottom design of the conical structure allows the powder to flow smoothly to the powder collection chamber, reducing residue and waste. The carrier gas outlet is connected by a vacuum pump to form a negative pressure environment, which enhances the collection effect of the powder. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 It is a side structural schematic diagram of the utility model;
[0018] Figure 3 It is a schematic structural diagram of the lower cyclone component of the utility model.
[0019] The meaning of each number in the figure is:
[0020] 1. Cyclone upper component; 2. Cyclone lower component; 3. Collection chamber support; 4. Vacuum bellows; 5. Y-type connecting device; 6. Powder collection chamber; 7. Carrier gas inlet; 8. Carrier gas outlet; 9. Water inlet; 10. Water outlet; 11. Thermal resistor. DETAILED DESCRIPTION
[0021] 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.
[0022] The utility model provides a collection chamber for preparing metal nanopowders, such as Figure 1-Figure 3 As shown, it includes a cyclone upper component 1 and a cyclone lower component 2. A thermal resistor 11 is installed on the top of the cyclone upper component 1. The thermal resistor 11 can monitor the temperature of the double cyclone collecting chamber. A carrier gas inlet 7 is arranged on the lower side of the cyclone upper component 1, and a carrier gas outlet 8 is arranged on the upper side of the cyclone upper component 1. The bottom of the cyclone lower component 2 is connected with a Y-type connecting device 5 through a vacuum bellows 4, and the bottom end of the Y-type connecting device 5 is connected with a powder collecting chamber 6. Multiple collection chambers for preparing metal nanopowders can be arranged in series, and adjacent cyclone upper components 1 are connected in sequence through the carrier gas inlet 7 and the carrier gas outlet 8, and the connecting pipelines are made of bellows.
[0023] In this embodiment, the interior of the cyclone lower component 2 has a cooling mechanism.
[0024] Specifically, the cooling mechanism is a water cooling mechanism, and a cooling water inlet and outlet is set on one side of the cyclone lower component 2, and the cooling water inlet and outlet include a water inlet 9 and a water outlet 10. The water inlet 9 is located at the bottom of the cyclone lower component 2, and the water outlet 10 is located at the top of the cyclone lower component 2.
[0025] Furthermore, the bottom of the cyclone lower component 2 is a conical structure, which facilitates the powder to flow to the powder collection chamber.
[0026] Furthermore, the outer end of the carrier gas outlet 8 is connected to an exhaust pipe, and the outer end of the exhaust pipe is connected to a vacuum pump.
[0027] Furthermore, the outer walls on both sides of the cyclone upper component 1 are installed with collecting chamber supports 3, and the device can be set on a workbench through the collecting chamber supports 3.
[0028] Furthermore, the cyclone upper component 1 is a cylindrical structure, and the bottom end of the cyclone upper component 1 is conical, which facilitates the powder to flow to the powder collection chamber and avoids the powder from being deposited at the bottom of the cyclone lower component.
[0029] Furthermore, an interlayer is provided inside the cyclone lower component 2, and a water cooling chamber is provided inside the interlayer to facilitate water cooling operations. Cooling water is circulated through the water inlet 9 and the water outlet 10 to maintain the temperature of the double cyclone collection chamber.
[0030] When the collection chamber for preparing metal nanopowder of the utility model is in use, the metal nanopowder first enters the cyclone collection chamber through the carrier gas inlet 7, is cooled by the water-cooled cyclone collection chamber and uses the airflow to form a high-speed rotating flow in the cylinder to make it deposit on the cylinder wall. A part of the metal nanopowder falls into the powder collection chamber 6 located at the bottom of the cyclone lower component 2, and the rest of the metal nanopowder is brought into another cyclone collection chamber carrier gas inlet 7 by the carrier gas, and then all the metal nanopowder is collected.
[0031] For example, the prepared nano-nickel powder is transported to a primary cyclone collection chamber by a carrier gas through a carrier gas inlet 7. When the nano-nickel powder contacts the water-cooled cyclone collection chamber cylinder, its temperature drops. The airflow is used to form a high-speed rotating flow in the cylinder to deposit it on the cylinder wall. The nano-nickel powder deposited on the cylinder wall falls into the powder collection chamber 6 at the bottom of the cyclone lower component 2, and the remaining nano-nickel powder enters another cyclone collection chamber through the carrier gas, thereby collecting all the metal nano-powders.
[0032] 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 collection chamber for preparing metal nanopowders, comprising a cyclone upper component (1) and a cyclone lower component (2), characterized in that: A thermal resistor (11) is installed on the top of the cyclone upper component (1), a carrier gas inlet (7) is arranged on the lower side of the cyclone upper component (1), a carrier gas outlet (8) is arranged on the upper side of the cyclone upper component (1), the bottom of the cyclone lower component (2) is connected to a Y-shaped connecting device (5) via a vacuum bellows (4), the bottom end of the Y-shaped connecting device (5) is connected to a powder collection chamber (6), a plurality of collection chambers for preparing metal nanopowders can be arranged in series, and adjacent cyclone upper components (1) are connected in sequence via the carrier gas inlet (7) and the carrier gas outlet (8).
2. The collecting chamber for preparing metal nanopowder according to claim 1, characterized in that: The cyclone lower component (2) has a cooling mechanism inside.
3. The collecting chamber for preparing metal nanopowder according to claim 1, characterized in that: The cooling mechanism is a water cooling mechanism. A cooling water inlet and outlet is provided on one side of the cyclone lower component (2). The cooling water inlet and outlet include a water inlet (9) and a water outlet (10). The water inlet (9) is located at the bottom of the cyclone lower component (2), and the water outlet (10) is located at the top of the cyclone lower component (2).
4. The collecting chamber for preparing metal nanopowder according to claim 1, characterized in that: The bottom of the cyclone lower component (2) is a conical structure, which facilitates the powder to flow to the powder collection chamber.
5. The collecting chamber for preparing metal nanopowder according to claim 1, characterized in that: The outer end of the carrier gas outlet (8) is connected to an exhaust pipe, and the outer end of the exhaust pipe is connected to a vacuum pump.
6. The collecting chamber for preparing metal nanopowder according to claim 1, characterized in that: Collection chamber supports (3) are installed on the outer walls of both sides of the cyclone upper component (1).
7. The collecting chamber for preparing metal nanopowder according to claim 1, characterized in that: The cyclone upper component (1) is a cylindrical structure, and the bottom end of the cyclone upper component (1) is conical.
8. The collecting chamber for preparing metal nanopowder according to claim 3, characterized in that: The cyclone lower component (2) is provided with an interlayer inside, and a water cooling chamber is provided inside the interlayer.