Nanometer agglomerated powder collecting device

Abstract

The utility model relates to the technical field of nanocrystalline powder, and provides a nano agglomerated powder collecting device, which comprises an outer barrel, an inner barrel, an inner barrel and an outer barrel, the bottom plate is arranged at the bottom of the outer cylinder body, and an air inlet and a discharge port are formed in the bottom plate; wherein the gas inlet is used for introducing reverse thrust gas; and the discharge port is positioned at the periphery of the air inlet. According to the nano agglomerated powder collecting device, the inner portion of the outer barrel is hollow, the top end of the outer barrel is provided with the feeding port, the bottom plate is provided with the air inlet and the discharging port, the air inlet is used for introducing reverse thrust air, the discharging port is located on the periphery of the air inlet, nano agglomerated powder enters the outer barrel from the feeding port and falls off under the action of gravity, and in the falling process, the nano agglomerated powder is separated from the discharging port. Due to the fact that the reverse pushing gas is introduced into the gas inlet, the falling speed of the nanometer agglomerated powder can be delayed under the reverse pushing effect of the reverse pushing gas, and it is ensured that particle breakage is reduced in the nanometer agglomerated powder collecting process.

Description

Technical Field

[0001] This utility model relates to the field of nanocrystalline powder technology, and in particular to a nano-agglomerated powder collection device. Background Technology

[0002] With the development of science and technology, people are paying more and more attention to the characterization and research of the properties of micro and nanoscale materials. As a type of primary nanoparticle, nano-agglomerates usually become interconnected and form clusters during preparation, separation, processing and storage. Through reasonable process control, nano-agglomerated powders can be formed into materials that can significantly improve the properties and uses of materials for human applications.

[0003] Currently, with the continuous advancement and promotion of nanotechnology, its applications are becoming increasingly widespread across various industries. As the primary carrier for nanotechnology applications, the quality of nano-agglomerate powder preparation directly impacts its widespread application and cost control. Furthermore, the rate of intact collection during the preparation process is a crucial component in evaluating the quality of the preparation.

[0004] As is well known, the speed of an object in free fall changes with time. In existing technologies, nano-agglomerated powder is usually in free fall during the collection process. Therefore, the speed of nano-agglomerated powder will increase as it falls.

[0005] However, due to the low strength of the nano-agglomerated powder, it is easy to break when it comes into contact with the collection device at a high speed due to collision. Utility Model Content

[0006] This invention provides a nano-agglomerated powder collection device to solve the defect of nano-agglomerated powder being easily broken during the collection process in the prior art, thereby ensuring the integrity of the nano-agglomerated powder during the collection process.

[0007] This utility model provides a nano-agglomerated powder collection device, comprising:

[0008] The outer cylinder is hollow inside, and a feed inlet is provided at the top.

[0009] A base plate is provided at the bottom of the outer cylinder; and an air inlet and a discharge outlet are provided on the base plate; the air inlet is for the intake of reverse thrust air; and the discharge outlet is located on the outer periphery of the air inlet.

[0010] The nano-agglomerated powder collecting device provided by this utility model further includes: an inner cylinder with openings at the top and bottom, and the bottom of which is disposed on the base plate; the inner cylinder is located inside the outer cylinder, and the height of the inner cylinder is less than or equal to the height of the outer cylinder; the air inlet is located at the center of the inner cylinder; and the discharge port is located in the annular area between the inner cylinder and the outer cylinder.

[0011] According to the present invention, a nano-agglomerated powder collecting device is provided, wherein the discharge port has multiple outlets, and the sum of the areas of the multiple discharge ports accounts for at least two-thirds of the area of ​​the annular region between the inner cylinder and the outer cylinder.

[0012] According to the present invention, a nano-agglomerated powder collection device further includes an air pipe disposed at the air inlet.

[0013] According to the present invention, a nano-agglomerated powder collecting device is provided, wherein the top end of the air tube is flush with the top end of the base plate.

[0014] According to the present invention, a nano-agglomerated powder collection device is provided, wherein the air tube comprises:

[0015] The bottom of the air intake is flush with the bottom of the base plate;

[0016] The inclined portion has one end connected to the air intake portion and the other end inclined towards the cylinder wall of the inner cylinder; the top of the inclined portion is flush with the top of the bottom plate.

[0017] According to the present invention, a nano-agglomerated powder collecting device is provided, wherein the tilt angle of the inclined part is 45°.

[0018] According to the present invention, a nano-agglomerated powder collecting device is provided, wherein the outer cylinder comprises:

[0019] The first cylindrical body has an inner cylindrical body disposed on its inner side;

[0020] The second cylinder is connected to the first cylinder at its bottom end and tilts outward at its top end.

[0021] The third cylinder is connected to the top of the second cylinder, and the top of the third cylinder is provided with the feed port.

[0022] According to the present invention, a nano-agglomerated powder collecting device is provided, wherein both the outer cylinder and the inner cylinder are transparent cylinders.

[0023] According to the present invention, a nano-agglomerated powder collecting device is provided, wherein the top of the inner cylinder is lower than the top of the outer cylinder.

[0024] The nano-agglomerated powder collecting device provided by this utility model has a hollow outer cylinder with a feed inlet at the top and a bottom plate at the bottom of the outer cylinder. The bottom plate has an air inlet and a discharge outlet. The air inlet is for reverse thrust air to enter, and the discharge outlet is located on the outer periphery of the air inlet. The nano-agglomerated powder enters the inner side of the outer cylinder through the feed inlet. During the fall of the nano-agglomerated powder due to gravity, the reverse thrust air introduced at the air inlet slows down the descent speed of the nano-agglomerated powder, so that the nano-agglomerated powder falls at a lower speed. This ensures that the nano-agglomerated powder is less broken during the collection process, thus achieving a high success rate and scientific validity in nano-agglomerated granulation. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a side view of the nano-agglomerated powder collection device provided by this utility model;

[0027] Figure 2 This is a top view of the nano-agglomerated powder collection device provided by this utility model;

[0028] Figure 3 This is a cross-sectional view of the inner cylinder provided by this utility model;

[0029] Figure label:

[0030] 1. Outer cylinder; 2. Inner cylinder; 3. Feed inlet; 4. Air inlet; 5. Discharge outlet;

[0031] 6. Trachea; 7. Base plate;

[0032] 11. First cylinder; 12. Second cylinder; 13. Third cylinder;

[0033] 61. Air intake section; 62. Inclined section. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0035] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] The following is combined with Figures 1 to 3 This invention describes a nano-agglomerated powder collection device.

[0037] like Figure 1 and Figure 2 As shown in the figure, the nano-agglomerated powder collecting device provided in this embodiment of the present invention includes an outer cylinder 1 and a bottom plate 7. The outer cylinder 1 is hollow inside, with a certain space to accommodate the material. As the main structure of the entire collecting device, the top of the outer cylinder 1 is provided with a feed inlet 3, through which the powder to be processed enters the interior of the outer cylinder 1. The bottom plate 7 is located at the bottom of the outer cylinder 1, and an air inlet 4 and a discharge outlet 5 are provided on the bottom plate 7. The air inlet 4 allows the reverse thrust air to enter. The nano-agglomerated powder enters the inner side of the outer cylinder 1 from the feed inlet 3. Under the action of the gas reverse thrust, the velocity decreases and it is discharged through the discharge outlet 5. The main function of the discharge outlet 5 is to allow the processed or agglomerated powder to be discharged from the device.

[0038] The nano-agglomerated powder collecting device provided in this embodiment of the invention allows the nano-agglomerated powder to fall downwards due to gravity after entering the outer cylinder 1 from the feed inlet 3. During the descent, reverse thrust air is introduced through the air inlet 4, which generates a reverse thrust on the nano-agglomerated powder during the descent. Under the action of the reverse thrust, the descent speed of the nano-agglomerated powder can be slowed down, so that the nano-agglomerated powder can contact the collecting device at a lower speed. This ensures that particle breakage is reduced during the collection of nano-agglomerated powder, thereby achieving a high success rate and scientific validity in nano-agglomerated granulation.

[0039] In one feasible embodiment of this utility model, the inner cylinder 2 has openings at the top and bottom, and the bottom is set on the base plate 7. The inner cylinder 2 is located inside the outer cylinder 1, and the height of the inner cylinder 2 is less than or equal to the height of the outer cylinder 1. The air inlet 4 is located at the center of the inner cylinder 2, and the discharge outlet 5 is located between the annular area enclosed by the inner cylinder 2 and the outer cylinder 1.

[0040] In the above embodiments, the top of the inner cylinder 2 is lower than the top of the outer cylinder 1, which can better control the falling trajectory of the nano-agglomerated powder and reduce the blocking effect of the inner cylinder 2, so that more nano-agglomerated powder can fall more easily into the annular area between the inner cylinder 2 and the outer cylinder 1 under the blowing of argon gas, so as to ensure that the finished product is smoothly collected from the discharge port 5 and reduce losses.

[0041] Typically, the inner cylinder 2 and the outer cylinder 1 are coaxially arranged so that the gas can exert a more uniform reverse force on the nano-agglomerated powder.

[0042] It should be noted that the inner cylinder 2 can be integrally formed with the bottom plate 7, or it can be fixedly connected by other connection methods.

[0043] Additionally, it should be noted that when argon gas is introduced at inlet 4, the gas inlet speed can be controlled according to different feed rates, and the gas pressure can be adjusted reasonably to ensure that the nano-agglomerated powder is not broken and can fall into the annular area between the outer cylinder 1 and the inner cylinder 2 under the action of gas thrust.

[0044] like Figure 2 As shown, in one embodiment of this utility model, there are multiple discharge ports 5, and the sum of the areas of the multiple discharge ports 5 accounts for at least two-thirds of the area of ​​the annular region between the inner cylinder 2 and the outer cylinder 1, ensuring a larger discharge area so that more nano-agglomerated powder products can flow directly out from the discharge ports 5, reducing the probability of falling to the top of the bottom plate 7.

[0045] In addition, to improve the yield, a nipple structure (not shown in the figure) can be set at the connection position of the adjacent discharge port 5 on the base plate 7, so that the finished products that do not fall directly into the discharge port 5 can roll back to the discharge port 5 under the action of the nipple structure when they fall onto the nipple structure.

[0046] Furthermore, multiple discharge ports 5 are evenly distributed in the annular area between the outer cylinder 1 and the inner cylinder 2.

[0047] In one embodiment of this utility model, an air pipe 6 is also included, which is disposed at the air inlet 4 to facilitate the introduction of gas.

[0048] In one embodiment of this utility model, the top end of the trachea 6 can also extend into the interior of the inner cylinder 2, which can ensure that the incoming gas or fluid can be more evenly distributed in the space of the inner cylinder 2.

[0049] It should be noted that in the above embodiments, the air pipe 6 is an independent tubular structure, the bottom plate 7 has an opening, and the air pipe 6 is fixedly installed at the opening. Preferably, the axis of the air pipe 6 coincides with the central axis of the inner cylinder 2.

[0050] like Figure 3As shown, in one embodiment of this utility model, the air pipe 6 includes an air inlet 61 and an inclined section 62. The bottom end of the air inlet 61 is flush with the bottom end of the base plate 7, ensuring that gas can smoothly enter the inner cylinder 2 from the bottom and reducing obstruction to gas flow. One end of the inclined section 62 is connected to the air inlet 61, and the other end is inclined towards the cylinder wall near the inner cylinder 2. This inclination helps guide the gas flow to the side wall of the inner cylinder 2, promoting uniform gas distribution and mixing. The inclination angle and length of the inclined section 62 can be adjusted according to specific needs to achieve the best gas flow and distribution effect. The design of the air pipe 6, through the combination of the air inlet 61 and the inclined section 62, realizes the process of gas entering from the bottom, being guided by the side wall, and being uniformly distributed inside. This design helps to improve the flow efficiency and uniformity of gas in the inner cylinder 2, and is suitable for applications requiring efficient gas exchange or reaction.

[0051] Of course, in this embodiment, the shape of the air inlet on the base plate must match the air pipe 6.

[0052] In one embodiment of this invention, the inclined angle of the inclined portion 62 is 45°. This 45° angle allows for better dispersion and distribution of gas as it flows along the inclined portion 62 after entering the inner cylinder 2, effectively ensuring sufficient argon buffer gas within the plane of the inner cylinder 2. This design helps reduce gas flow concentration and deviation, allowing the gas to flow more evenly to the sidewalls of the inner cylinder 2. The 45° angle enables the inclined portion 62 to achieve uniform gas distribution while occupying a limited space. This design helps optimize the internal spatial layout of the inner cylinder 2, allowing other components or equipment to utilize space more effectively.

[0053] In one embodiment of this utility model, the outer cylinder 1 is a variable cross-section cylindrical structure, including a first cylinder 11, a second cylinder 12, and a third cylinder 13. An inner cylinder 2 is provided inside the first cylinder 11. The first cylinder 11 is a cylindrical structure with an inner diameter of 300mm, a height of 100mm, and a bottom thickness of 10mm. The bottom end of the second cylinder 12 is connected to the first cylinder 11, and its top end is inclined outwards; that is, the second cylinder 12 adopts an expanded diameter trumpet-shaped structure with an inclination angle of 60° and an extension length of 100mm. The third cylinder 13 is connected to the top end of the second cylinder 12, and a feed inlet 3 is provided at the top of the third cylinder 13. The third cylinder 13 is a cylindrical structure with an inner diameter of 400mm and a height of 50mm.

[0054] Correspondingly, the inner diameter of the inner cylinder 2 can be selected as 100mm, and the height can be selected as 100mm.

[0055] In one embodiment of this utility model, both the outer cylinder 1 and the inner cylinder 2 are transparent cylinders, which can be made of transparent glass material to facilitate observation and collection of nano-aggregates.

[0056] In summary, the nano-agglomerated powder collecting device provided by this invention utilizes the reverse pressure of argon protective gas in the inner cylinder 2 to ensure reduced particle breakage during the collection process. The outer cylinder 1 employs a variable cross-section cylindrical structure, and the inner cylinder 2 is lower than the outer cylinder 1; this height difference facilitates the collection of nano-agglomerated powder and reduces losses. The 45° inclined outlet of the gas pipe 6's inclined portion 62 ensures that the inner cylinder 2 has sufficient depth to be filled with protective gas.

[0057] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model according to the specific circumstances.

[0058] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "method," "specific method," or "some methods," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or method is included in at least one embodiment or method of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or method. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or methods. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or methods described in this specification, as well as the features of different embodiments or methods.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A nano-agglomerated powder collection device, characterized in that, include: The outer cylinder (1) is hollow inside and has a feed inlet (3) at the top. A bottom plate (7) is provided at the bottom of the outer cylinder (1); and an air inlet (4) and a discharge outlet (5) are provided on the bottom plate (7); wherein, the air inlet (4) is for the reverse thrust air to pass through; and the discharge outlet (5) is located on the outer periphery of the air inlet (4).

2. The nano-agglomerated powder collecting device according to claim 1, characterized in that, Also includes: The inner cylinder (2) has openings at the top and bottom, and its bottom is located on the base plate (7); the inner cylinder (2) is located inside the outer cylinder (1), and the height of the inner cylinder (2) is less than or equal to the height of the outer cylinder (1); the air inlet (4) is located at the center of the inner cylinder (2); the discharge port (5) is located in the annular area between the inner cylinder (2) and the outer cylinder (1).

3. The nano-agglomerated powder collecting device according to claim 2, characterized in that, The discharge port (5) has multiple outlets, and the sum of the areas of the multiple discharge ports (5) is at least two-thirds of the area of ​​the annular region between the inner cylinder (2) and the outer cylinder (1).

4. The nano-agglomerated powder collecting device according to claim 2, characterized in that, It also includes an air pipe (6), which is located at the air inlet (4).

5. The nano-agglomerated powder collecting device according to claim 4, characterized in that, The top end of the trachea (6) is flush with the top end of the base plate (7).

6. The nano-agglomerated powder collecting device according to claim 4, characterized in that, The trachea (6) includes: The bottom end of the air intake (61) is flush with the bottom end of the base plate (7); The inclined part (62) is connected at one end to the air inlet (61) and at the other end to the cylinder wall near the inner cylinder (2); and the top end of the inclined part (62) is flush with the top end of the bottom plate (7).

7. The nano-agglomerated powder collecting device according to claim 6, characterized in that, The tilt angle of the inclined portion (62) is 45°.

8. The nano-agglomerated powder collecting device according to claim 2, characterized in that, The outer cylinder (1) includes: The first cylindrical body (11) has the inner cylindrical body (2) disposed on its inner side; The second cylinder (12) is connected to the first cylinder (11) at its bottom end and tilted outward at its top end; The third cylinder (13) is connected to the top of the second cylinder (12), and the top of the third cylinder (13) is provided with the feed port (3).

9. The nano-agglomerated powder collecting device according to claim 2, characterized in that, Both the outer cylinder (1) and the inner cylinder (2) are transparent cylinders.

10. The nano-agglomerated powder collecting device according to claim 2, characterized in that, Multiple discharge ports (5) are evenly distributed in the annular area between the outer cylinder (1) and the inner cylinder (2).

Images