A nanomaterial collection device

Abstract

The application provides a nanometer material collecting device, which comprises a collecting tank body, an electrode module and a collecting film layer. The collecting tank body comprises a tank main body and a cover body which are detachably connected. The tank main body and the cover body enclose a collecting cavity. The electrode module is arranged in the collecting cavity and is connected to the cover body to be electrically connected to an external power source, for electrically exploding a metal target to generate nanometer powder. The collecting film layer is detachably connected to the inner surface of the tank main body, for collecting the nanometer powder. The collecting film layer for collecting the nanometer powder is detachably arranged in the collecting tank body, so that the collecting tank body is easily separated. The nanometer powder generated by electric explosion is directly collected on the collecting film layer, and then the nanometer powder on the collecting film layer is collected, so that the difficulty of collecting the nanometer powder is greatly reduced, the collecting tank body is prevented from being polluted by other nanometer powder to cause mixed pollution in the next preparation of collecting the nanometer powder, the purity of the collected powder is improved, and the whole process operation is convenient and fast.

Description

Technical Field

[0001] This application relates to the field of nanomaterials technology, and in particular to a nanomaterials collection device. Background Technology

[0002] Nanomaterials (typically referring to materials with sizes ranging from 1 to 100 nanometers) exhibit broad application potential in various fields due to their unique physical, chemical, and biological properties, such as medical and biotechnology, energy, electronic and optoelectronic devices, environmental and pollution control, materials science and industry, and everyday consumer goods. Among these, metallic nanomaterials are mainly concentrated in several high-value-added fields, with demand showing a highly specialized trend, and particle size range closely related to application scenarios. Electro-explosion is a technique that uses a high-energy pulsed current to instantaneously act on a metal wire, causing it to undergo a phase transition explosion and generate nanoparticles. This method is widely used in the preparation of metallic, alloy, and compound nanomaterials due to its non-equilibrium process, high energy density, and strong controllability.

[0003] Traditional electro-explosion method manufacturing equipment uses a collection tank, where the electro-explosion reaction occurs and the generated metal nanoparticles are collected. However, after being collected, the metal nanoparticles tend to adhere to the inner wall of the collection tank. Transferring the collected nanoparticles requires removing the tank, which is difficult and prone to leakage and residue. Furthermore, reusing the collection tank to collect other metal nanoparticles can cause mixing between the collected nanoparticles and previous residues, leading to contamination.

[0004] Therefore, it is necessary to improve the traditional electro-explosion manufacturing equipment to solve the above problems. Summary of the Invention

[0005] In view of this, this application provides a nanomaterial collection device that can effectively solve the above problems.

[0006] This application provides a nanomaterial collection device, including a collection tank, an electrode module, and a collection membrane. The collection tank includes a detachably connected tank body and a cover, which together form a collection cavity. The electrode module is disposed in the collection cavity and connected to the cover for electrical connection with an external power source, and is used to generate nanopowder from an electro-explosive metal target. The collection membrane is detachably connected to the inner surface of the tank body for collecting the nanopowder.

[0007] In one embodiment, the tank body includes a bottom tank wall and side tank walls connected to the periphery of the bottom tank wall, and the collecting membrane layer includes a bottom membrane layer and side membrane layers connected to the periphery of the bottom membrane layer. The bottom membrane layer is connected to the inner surface of the bottom tank wall, and the side membrane layers are connected to the inner surface of the side tank wall.

[0008] In one embodiment, the collecting membrane layer is detachably attached to the inner surface of the can body by adhesive; or, the collecting membrane layer is detachably connected to the inner surface of the can body by means of clips or screws.

[0009] In one embodiment, the system further includes a mounting structure for mounting a test membrane layer, the mounting structure being disposed within the collection chamber and detachably connected to the cover, the test membrane layer being used to collect the nanoparticles.

[0010] In one embodiment, the mounting structure includes a suspension member and a mounting plate, one end of the suspension member being detachably connected to the cover, and the mounting plate being mounted on the other end of the suspension member, with the mounting plate positioned close to the metal target.

[0011] In one embodiment, the suspension member includes a first suspension arm and a second suspension arm. The first suspension arm is detachably fixed to the cover body, and the mounting plate is detachably mounted on the second suspension arm. The first suspension arm is provided with a first sliding part, and the second suspension arm is provided with a second sliding part. The first sliding part and the second sliding part are slidably connected.

[0012] In one embodiment, the suspension component includes a first suspension arm and a second suspension arm. One end of the first suspension arm is detachably fixed to the cover. The first suspension arm is provided with at least one first fixing part. The second suspension arm includes a fixed part and a connecting part connected to each other. The fixed part is provided with at least one second fixing part. The mounting plate is detachably installed on the connecting part. The first fixing part and the second fixing part are detachably fixed.

[0013] In one embodiment, one end of the first suspension arm is provided with a bent portion, which is connected to the cover and can be detachably fixed to the cover by means of adhesive, snap-fit ​​or screw.

[0014] In one embodiment, the test membrane layer is detachably fixed to the mounting plate by means of adhesive, clips, or screws.

[0015] In one embodiment, the test film is a carbon film.

[0016] In summary, this application provides a nanomaterial collection device, including a collection tank, an electrode module, and a collection membrane. The collection tank includes a detachably connected main body and a cover, which together form a collection cavity. The electrode module is located within the collection cavity and connected to the cover for electrical connection to an external power source, used for generating nanopowder from an electro-explosive metal target. The collection membrane is detachably connected to the inner surface of the main body for collecting the nanopowder. This application achieves easy separation from the collection tank by detachably installing the collection membrane within the collection tank. The nanopowder generated by the electro-explosion is directly collected on the collection membrane. After collection, the cover is opened, the collection membrane is removed from the main body, and the nanopowder on the membrane is collected. After collection, the collection membrane can be cleaned and reinstalled in the collection tank for reuse. This greatly reduces the difficulty of collecting nanopowder, avoids the cumbersome operation of removing the entire collection tank, and prevents contamination of the collection tank by other nanopowder, thus improving the purity of the collected powder and making the entire process convenient and quick. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a nanomaterial collection device in one embodiment of this application.

[0018] Figure 2 for Figure 1 A schematic diagram of the nanomaterial collection device.

[0019] Figure 3 for Figure 2 A top view of the tank body and the collection membrane layer.

[0020] Figure 4 for Figure 2 A three-dimensional structural diagram of the tank body and the collection membrane layer.

[0021] Figure 5 for Figure 2 A three-dimensional structural diagram of the cover, limiting components, and electrode module of the medium- and nanomaterials collection device.

[0022] Figure 6 for Figure 2 An exploded schematic diagram of the components related to the cover of the medium- and nanomaterials collection device.

[0023] Figure 7 for Figure 2 An exploded view of the installation structure of the medium- and nanomaterials collection device.

[0024] Figure 8 for Figure 5 An exploded view of the limiting components of the medium- and nanomaterials collection device.

[0025] Figure 9 for Figure 5 An exploded view of the electrode assembly and clamping mechanism components of the medium- and nanomaterials collection device.

[0026] Figure 10 for Figure 9 A three-dimensional structural diagram of the clamping mechanism of the medium- and nanomaterials collection device.

[0027] Figure 11 for Figure 10 Exploded view of the clamping mechanism.

[0028] Figure label:

[0029] x-Axial direction; 10-Nanomaterial collection device; 12-Collection tank; 14-Clamping mechanism; 16-Collection cavity; 18-First electrode assembly; 20-Second electrode assembly; 22-Metal target; 24-Tank body; 24a-Bottom tank wall; 24b-Side tank wall; 26-Lid; 28-First electrode rod; 30-Second electrode rod; 32-Electrode plate; 34-Limiting component; 36-First through hole; 38-Second through hole; 40-First fixing hole; 42-Second fixing hole; 44-First sealing ring; 46-Second sealing ring; 48-First receiving groove; 50-Second receiving groove; 52-First guide sleeve; 54-Second guide sleeve; 56-Air inlet; 58-First air hole; 60-Air outlet; 62-Second air hole; 64-Fixing base; 66-First clamping surface; 68 - Second clamping surface; 70- Clamping space; 72- Connecting part; 74- First clamping part; 76- Mounting part; 78- Movable space; 80- Lead screw; 82- Second clamping part; 84- Screw hole; 86- Connecting hole; 88- Rotating head; 90- First clamping groove; 92- Second clamping groove; 94- Connector; 96- Mounting base; 98- First fixing structure; 100- Second fixing structure; 102- First part; 104- Second part; 106- Collecting membrane layer; 106a- Bottom membrane layer; 106b- Side membrane layer; 110- Suspension part; 112- Mounting plate; 114- First suspension arm; 116- Second suspension arm; 118- First fixing part; 120- Fixing part; 122- Connecting part; 124- Connecting plate; 126- Second fixing part; 128- Bending part. Detailed Implementation

[0030] Before describing the embodiments in detail, it should be understood that this application is not limited to the detailed structures or element arrangements described below or in the accompanying drawings. This application can be implemented in other ways. Furthermore, it should be understood that the wording and terminology used herein are for descriptive purposes only and should not be construed as limiting. The terms "comprising," "including," "having," and similar expressions used herein mean to include the items listed thereafter, their equivalents, and other additional items. In particular, when describing "an element," this application does not limit the number of elements to one, but may include multiple elements.

[0031] Please also refer to Figure 1 and Figure 2 As shown, this application provides a nanomaterial collection device 10, which can be used to manufacture and collect nanomaterials (such as metal nanopowders, metal oxides, or other compound nanopowders) by electro-explosion, without the need for liquid collection. Specifically, the nanomaterial collection device 10 includes a collection tank 12, an electrode module, and a collection membrane 106. The collection tank 12 includes a tank body 24 and a cover 26. The cover 26 is detachably connected to the tank body 24 and encloses it to form a collection cavity 16. The electrode module is disposed in the collection cavity 16 and connected to the cover 26 for electrical connection to an external power source. The electrode module is used to generate nanopowder by electro-exploding a metal target 22. The collection membrane 106 is detachably connected to the inner surface of the tank body 24 for collecting the generated nanopowder.

[0032] This application achieves easy separation from the collection tank 12 by detachably installing a collection membrane layer 106 for collecting nanopowder inside the collection tank 12. The nanopowder generated by the electro-explosion is directly collected on the collection membrane layer 106. After collection, the cover 26 is opened, and the collection membrane layer 106 is removed from the tank body 24. Then, the nanopowder on the collection membrane layer 106 is collected. After the nanopowder is collected, the cleaned collection membrane layer 106 can be reinstalled in the collection tank 12 for reuse, or it can be used as a disposable consumable. This greatly reduces the difficulty and cost of collecting nanopowder, avoids the cumbersome operation of removing the entire collection tank 12, and prevents the collection tank 12 from being contaminated by other nanopowder, which could cause mixed contamination during the next preparation of nanopowder. This improves the purity of the collected powder and makes the entire process convenient and quick.

[0033] Furthermore, please also refer to Figure 3 and Figure 4As shown, the can body 24 has an open top structure and includes a bottom can wall 24a and side can walls 24b connected to the periphery of the bottom can wall 24a. Correspondingly, the collecting membrane layer 106 includes a bottom membrane layer 106a and a side membrane layer 106b connected to the periphery of the bottom membrane layer 106a. The bottom membrane layer 106a is connected to the inner surface of the bottom can wall 24a, and the side membrane layer 106b is connected to the inner surface of the side can wall 24b. Preferably, the shape and size of the bottom membrane layer 106a are the same as those of the bottom can wall 24a, so that the bottom membrane layer 106 completely covers the bottom can wall 24a; the shape and size of the side membrane layer 106b are the same as those of the side can wall 24b, so that the side membrane layer 106 completely covers the side can wall 24b. This ensures that the collecting membrane layer 106 completely covers the inner surface of the can body 24, which can better collect nanoparticles and avoid leakage.

[0034] The collecting membrane layer 106 can be detachably attached to the inner surface of the tank body 24 by adhesive, or it can be detachably connected to the inner surface of the tank body 24 by clips or screws. In other embodiments, the collecting membrane layer 106 can also be detachably installed on the inner surface of the tank body 24 by other means. This application does not limit the specific detachable method.

[0035] In this embodiment, as Figure 5 As shown, the collection tank 12 is made of, for example, metal. The electrode module includes a first electrode assembly 18, a second electrode assembly 20, and a conductive clamping mechanism 14, which is also made of metal. The first electrode assembly 18 and the second electrode assembly 20 are used for electrical connection to an external power source. The clamping mechanism 14 is connected to the first electrode assembly 18 and is used to clamp and fix the metal target 22. The metal target 22 is electrically connected to the first electrode assembly 18 through the clamping mechanism 14, and the other end of the metal target 22 is in electrical contact with the second electrode assembly 20, thereby achieving circuit conduction. This application, by providing a clamping mechanism 14 for clamping and fixing the metal target 22 inside the collection tank 12, allows the metal target 22 to be directly placed inside the collection tank 12 for reaction, realizing dry collection of metal nanomaterials without the use of liquid. This effectively solves the problem that metal cannot be made into wires for electro-explosion, and the clamping mechanism 14 can be adapted to metal targets 22 of various shapes, broadening the application range.

[0036] In this embodiment, the first electrode assembly 18 serves as either the anode or the cathode, and the second electrode assembly 20 serves as the other anode or cathode. The first electrode assembly 18 and the second electrode assembly 20 can be connected to the positive and negative terminals of a power supply, respectively. After the power is turned on, a high-pulse voltage is applied to the metal target 22, causing an electro-explosion on the metal target 22 and forming nanoparticles. In this embodiment, the first electrode assembly 18 is the cathode, and the second electrode assembly 20 is the anode.

[0037] The clamping mechanism 14 expands the range of electrically explosive metal materials that can be used. Optionally, the metal target 22 can take various shapes, such as rod, strip, or block. The clamping mechanism 14 of this application can securely clamp and fix the metal target 22 of various shapes. In this embodiment, the metal target 22 is a cylindrical rod. The clamping mechanism 14 can clamp one end of the metal target 22, and the other end of the metal target 22 abuts against the second electrode assembly 20.

[0038] In the illustrated embodiment, as Figure 1 As shown, the collection tank 12 is designed in a cylindrical shape, but this application does not limit the shape of the collection tank 12. In other embodiments, the collection tank 12 can also be designed in other shapes. The collection tank 12 has an axial direction x, and the collection tank 12 can be placed in the up-down direction when in use. In this case, the axial direction x is the up-down direction.

[0039] like Figure 2 As shown, the collection tank 12 includes a lid 26 and a tank body 24 connected vertically along the axial direction x. The tank body 24 has a top-opening structure. The lid 26 is detachably fitted onto the top opening of the tank body 24 and encloses the tank body 24 to form a collection cavity 16. For example, the lid 26 is threaded or snap-fitted to the top opening of the tank body 24, thereby achieving detachable fixation between the lid 26 and the tank body 24. Preferably, the diameter of the lid 26 is larger than the diameter of the tank body 24. The lid 26 has a bottom-opening structure. The radially inner sidewall of the lid 26 has an internal thread, and the radially outer sidewall of the top of the tank body 24 has an external thread. The internal and external threads are threadedly connected, allowing the lid 26 to be fitted onto the tank body 24 by a threaded connection. The snap-fit ​​connection can be similar to the rotating snap-fit ​​connection between the lid and the body of a pressure cooker, which will not be described in detail here.

[0040] In this embodiment, as Figure 5 and Figure 9 As shown, the first electrode assembly 18 includes a first electrode rod 28, and the second electrode assembly 20 includes a second electrode rod 30 and an electrode plate 32. The first electrode rod 28 and the second electrode rod 30 are spaced apart. A clamping mechanism 14 is connected to the bottom end of the first electrode rod 28, and the electrode plate 32 is connected to the bottom end of the second electrode rod 30, for example, by bolts. The length of the first electrode rod 28 is less than the length of the second electrode rod 30, and both the first electrode rod 28 and the second electrode rod 30 are, for example, arranged along the axial direction x. Therefore, the electrode plate 32 is located below the clamping mechanism 14, and the position of the electrode plate 32 corresponds to the position of the clamping mechanism 14 in the axial direction x, so that the metal target 22 abuts against the electrode plate 32.

[0041] Please also refer to Figure 5 , Figure 6 and Figure 8 As shown, the top ends of the first electrode rod 28 and the second electrode rod 30 are both connected to the cover 26. Specifically, a limiting member 34 is fixedly provided on one side of the cover 26 located in the collection chamber 16. The limiting member 34 is, for example, block-shaped. The first electrode rod 28 and the second electrode rod 30 pass through the limiting member 34 and the cover 26, respectively, and are fixedly connected to the limiting member 34. In the illustrated embodiment, the middle region of the cover 26 is provided with a first through hole 36 and a second through hole 38 penetrating the cover 26. The limiting member 34 is provided with a first fixing hole 40 and a second fixing hole 42. The top end of the first electrode rod 28 passes through the first fixing hole 40 and the first through hole 36 from bottom to top and extends out of the cover 26. The top end of the second electrode rod 30 passes through the second fixing hole 42 and the second through hole 38 from bottom to top and extends out of the cover 26. The first electrode rod 28 is fixedly connected to the first fixing hole 40, for example, by a threaded connection. The second electrode rod 30 is fixedly connected to the second fixing hole 42, for example, by a threaded connection. The limiting member 34 is fixedly connected to the cover 26, for example, by a screw, thereby limiting and fixing the first electrode assembly 18 and the second electrode assembly 20, preventing the first electrode assembly 18 and the second electrode assembly 20 from loosening due to excessive impact force during the electro-explosion process.

[0042] To enhance the airtightness of the collection tank 12, a first sealing ring 44 is provided at the connection between the cover 26 and the tank body 24, and a second sealing ring 46 is provided at the connection between the first electrode rod 28 and the first through hole 36 and the connection between the second electrode rod 30 and the second through hole 38, respectively. Preferably, a first receiving groove 48 is provided at the edge of the cover 26 on one side of the collection chamber 16, and the first sealing ring 44 is received in the first receiving groove 48; furthermore, the width of the first receiving groove 48 or the first sealing ring 44 is approximately the same as the thickness of the side wall of the tank body 24, and when the cover 26 is connected to the tank body 24, the top of the cover 26 abuts against the first sealing ring 44 to enhance airtightness. Two second sealing rings 46 are provided on one side of the cover 26 located in the collection chamber 16. Specifically, two second receiving grooves 50 are provided on the top surface of the limiting member 34. The two second receiving grooves 50 are respectively arranged around the first fixing hole 40 and the second fixing hole 42. That is, the first fixing hole 40 and the second fixing hole 42 are respectively connected to the corresponding second receiving grooves 50. The two second sealing rings 46 are respectively arranged around the first electrode rod 28 and the second electrode rod 30, and are respectively housed in the corresponding second receiving grooves 50. For example, the second sealing rings 46 are pressed between the second receiving grooves 50 and the cover 26, thereby achieving the sealing of the first through hole 36 and the second through hole 38 and enhancing the airtightness of the collection tank 12.

[0043] In the illustrated embodiment, as Figure 1 , Figure 5 and Figure 6 As shown, the first electrode assembly 18 includes a first conductive sleeve 52, and the second electrode assembly 20 includes a second conductive sleeve 54. The first conductive sleeve 52 is fitted over the portion of the first electrode rod 28 that extends beyond the cover 26, and the second conductive sleeve 54 is fitted over the portion of the second electrode rod 30 that extends beyond the cover 26. The first conductive sleeve 52 and the second conductive sleeve 54 are, for example, single-core aviation connectors for connecting electrical equipment, used to connect power supplies and equipment, ensuring stable current transmission, high reliability, and strong anti-interference capability, and can be connected to the anode and cathode via wires.

[0044] In the illustrated embodiments, please also refer to Figure 1 and Figure 2 As shown, the cover 26 is equipped with an inlet structure and an outlet structure communicating with the collection chamber 16. The inlet structure is used to connect to an external gas source to fill the collection chamber 16 with gas, and the outlet structure is used to discharge gas. For example, the instantaneous high voltage generated during an electric explosion will drive some gas and powder to be discharged through the outlet structure, preventing excessive pressure inside the collection tank 12. Different types of atmospheres can be introduced into the collection chamber 16 according to actual needs, such as argon + oxygen / nitrogen / methane, etc. For example, argon + oxygen can generate oxides. For example, during use, a protective gas can be introduced into the collection chamber 16 through the inlet structure, so that the original gas in the collection chamber 16 is discharged through the outlet structure, thus making the collection chamber 16 contain only protective gas such as argon; when it is necessary to prepare metal oxides or other compound powders, oxygen or other reactive gases and argon can be introduced into the collection chamber 16.

[0045] Furthermore, such as Figure 6 As shown, the air intake structure includes an air intake nozzle 56 and a first air hole 58, and the air outlet structure includes an air outlet nozzle 60 and a second air hole 62. The first air hole 58 and the second air hole 62 are disposed through the cover 26. The air intake nozzle 56 is located outside the cover 26 and installed in the first air hole 58, and the air outlet nozzle 60 is located outside the cover 26 and installed in the second air hole 62.

[0046] In the illustrated embodiments, please also refer to Figure 10 and Figure 11 As shown, the clamping mechanism 14 includes a fixed base 64 and a movable member. The fixed base 64 is fixedly mounted on the first electrode assembly 18 and has a first clamping surface 66. The movable member is movably connected to the fixed base 64 and has a second clamping surface 68. A clamping space 70 for clamping the metal target 22 is formed between the first clamping surface 66 and the second clamping surface 68. The electrode plate 32 is located below the clamping space 70 to facilitate contact with the bottom end of the metal target 22 to form electrical contact.

[0047] The movable component can move between a first position and a second position relative to the fixed base 64. When the movable component is in the first position, the second clamping surface 68 is close to the first clamping surface 66 and can cooperate with the first clamping surface 66 to clamp the metal target 22. When the movable component is in the second position, the second clamping surface 68 is away from the first clamping surface 66 to open the clamping space 70. At this time, the metal target 22 can be placed into the clamping space 70 or removed from the clamping space 70.

[0048] Specifically, such as Figure 10 As shown, the fixing base 64 includes a connecting portion 72 and a first clamping portion 74 and a mounting portion 76 connected to one side of the connecting portion 72 and spaced apart. The fixing base 64 is U-shaped, with the U-shaped opening facing the second electrode rod 30. A movable space 78 is formed between the first clamping portion 74 and the mounting portion 76, and a first clamping surface 66 is formed on the side of the first clamping portion 74 located in the movable space 78. The movable component includes a lead screw 80 and a second clamping portion 82. The mounting portion 76 has a screw hole 84 communicating with the movable space 78. The lead screw 80 is threaded into the screw hole 84, and both ends of the lead screw 80 extend out of the screw hole 84. The second clamping portion 82 is located in the movable space 78 and connected to the end of the lead screw 80 that extends into the movable space 78. The second clamping surface 68 is formed on the side of the second clamping portion 82 opposite to the first clamping surface 66.

[0049] Preferably, such as Figure 11 As shown, the second clamping part 82 has a connecting hole 86 on the side opposite to the second clamping surface 68. The second clamping part 82 is rotatably connected to the lead screw 80 through the connecting hole 86, so that the second clamping part 82 does not rotate when the lead screw 80 rotates, that is, the second clamping part 82 does not rotate with the lead screw 80, so that the second clamping surface 68 can always maintain the best clamping direction, and the second clamping part 82 can better perform the clamping action and increase the clamping stability. The other end of the lead screw 80 extending out of the mounting part 76 is fixedly connected to a rotating head 88, so that the user can rotate the lead screw 80 by rotating the rotating head 88, which brings convenience to the user.

[0050] Furthermore, a first clamping groove 90 is recessed at the center of the first clamping surface 66, and a second clamping groove 92 is recessed at the center of the second clamping surface 68. Both the first clamping groove 90 and the second clamping groove 92 extend along the axial direction x, and the second clamping groove 92 corresponds to the position of the first clamping groove 90. The first clamping groove 90 and the second clamping groove 92 can be designed to fit the shape of the metal target 22 to increase the contact area between the clamping surface and the metal target 22, making the force on the metal target 22 more uniform and the clamping more stable.

[0051] By rotating the lead screw 80, the second clamping part 82 can be controlled to move laterally within the active space 78, thereby enabling the second clamping part 82 to move closer to the first clamping part 74 and cooperate with the first clamping part 74 to clamp the metal target 22, or the second clamping part 82 to move away from the first clamping part 74 to open the clamping space 70.

[0052] More specifically, please also refer to Figure 9 As shown, the clamping mechanism 14 also includes a conductive connector 94. The fixing seat 64 is detachably fixed to the connector 94, for example, by screws. The bottom end of the first electrode rod 28 is provided with a mounting seat 96, which is square, for example, to facilitate installation. The connector 94 is provided with at least one first fixing structure 98, and the mounting seat 96 is provided with at least one second fixing structure 100. The first fixing structure 98 and the second fixing structure 100 are detachably fixed, for example, by bolts, thereby connecting and fixing the connector 94 to the mounting seat 96, and thus fixing the clamping mechanism 14 relative to the first electrode rod 28 via the connector 94. Preferably, multiple first fixing structures 98 and second fixing structures 100 are provided. For example, both the first fixing structure 98 and the second fixing structure 100 are hole structures. Multiple hole structures are arranged at intervals along the axial direction x. Different first fixing structures 98 are connected to different second fixing structures 100 to realize the adjustment of the vertical position of the connector 94, that is, the adjustment of the vertical position of the clamping mechanism 14, and thus the adjustment of the vertical position of the metal target 22. This allows the position of the clamping mechanism 14 to be appropriately adjusted according to the length of the metal target 22, so that the bottom end of the metal target 22 can better abut against the electrode plate 32 to achieve electrical contact.

[0053] In this embodiment, as Figure 9 As shown, the connector 94 is T-shaped and includes a first part 102 and a second part 104 that are connected. The first part 102 is arranged horizontally and the second part 104 is arranged vertically. The connecting part 72 is detachably and fixedly connected to the first part 102. The first fixing structure 98 is arranged on the second part 104 to avoid interference with the fixing seat 64 during the installation of the fixing structure, and at the same time facilitates the installation and connection of the first fixing structure 98 and the second fixing structure 100.

[0054] It should be understood that, in other embodiments, the vertical position adjustment of the connector 94 can also be achieved in other ways. For example, the connector 94 is provided with a first sliding structure, and the mounting base 96 is provided with a second sliding structure. The first sliding structure and the second sliding structure are slidably connected, thereby realizing the vertical position adjustment of the connector 94, the clamping mechanism 14 and the metal target 22.

[0055] In existing technologies, after collecting nanoparticles in a collection container, a portion of the nanoparticles needs to be transferred to a test carrier for characterization testing using instruments such as electron microscopy to assess their performance. However, the process of transferring the nanoparticles also requires disassembling the entire collection container for collection, which is cumbersome and presents challenges such as difficulty in transferring the nanoparticles, causing inconvenience to users.

[0056] In this embodiment, the nanomaterial collection device 10 further includes a mounting structure for mounting a test film layer (not shown in the figure). The test film layer is, for example, a carbon film (carbon support film), which is a special carrier for electron microscopy. The mounting structure is disposed within the collection cavity 16 and detachably connected to the cover 26. The test film layer is used to collect a portion of the nanoparticles for testing. Specifically, please also refer to... Figure 2 , Figure 5 and Figure 7 As shown, the mounting structure includes a suspension member 110 and a mounting plate 112. The suspension member 110 is positioned along the axial direction x, with one end connected to the cover 26. The mounting plate 112 is mounted on the other end of the suspension member 110 and is positioned close to the metal target 22. For example, the side of the mounting plate 112 facing away from the metal target 22 is connected to the suspension member 110, and the side of the mounting plate 112 close to the metal target 22 is the mounting surface of the test membrane. Preferably, the test membrane is directly opposite the metal target 22 in the radial direction of the collection tank 12, and the collection surface of the test membrane faces the metal target 22.

[0057] Furthermore, such as Figure 7 As shown, the suspension member 110 includes a first suspension arm 114 and a second suspension arm 116. The upper end of the first suspension arm 114 is detachably fixed to the cover 26, for example, by screws. The first suspension arm 114 is provided with at least one first fixing part 118. The second suspension arm 116 includes a fixed part 120 and a connecting part 122 connected together. The fixed part 120 is located above the connecting part 122. The fixed part 120 and the connecting part 122 are connected, for example, by a connecting plate 124. The fixed part 120, the connecting plate 124, and the connecting part 122 are, for example, integrally formed. The fixed part 120 is provided with at least one second fixing part 126. The mounting plate 112 is detachably mounted on the connecting part 122, for example, by screws. Preferably, the shape and size of the mounting plate 112 are the same as the shape and size of the connecting part 122. The first fixing part 118 and the second fixing part 126 are detachably fixed, for example by bolts, so that the mounting plate 112 is fixed relative to the cover 26, thereby fixing the test film layer relative to the cover 26.

[0058] Preferably, multiple first fixing parts 118 and second fixing parts 126 are provided. For example, both the first fixing parts 118 and the second fixing parts 126 are hole structures. Multiple hole structures are arranged at intervals along the axial direction x. Different first fixing parts 118 are connected to different second fixing parts 126 to realize the adjustment of the vertical position of the second suspension arm 116, that is, the adjustment of the vertical position of the mounting plate 112, thereby realizing the adjustment of the vertical position of the test film layer. This allows the position of the test film layer to be appropriately adjusted according to the position of the metal target 22, so that the test film layer can better correspond to the position of the metal target 22 to better collect nanopowder.

[0059] In other embodiments, the vertical position of the second suspension arm can also be adjusted in other ways. For example, the first suspension arm 114 is detachably fixed to the cover 26, and the mounting plate 112 is detachably fixed to the second suspension arm 116. A first sliding part is provided on the first suspension arm 114, and a corresponding second sliding part is provided on the second suspension arm 116. The first sliding part and the second sliding part are, for example, a slide rail and a slide groove, respectively. The first sliding part and the second sliding part are slidably connected, thereby enabling the vertical position adjustment of the second suspension arm 116, the mounting plate 112, and the test membrane layer.

[0060] Optionally, such as Figure 6 and Figure 7 As shown, the upper end of the first suspension arm 114 is provided with a bent portion 128. The bent portion 128 is, for example, a vertical bend. The bent portion 128 is connected to the cover 26 and can be detachably fixed to the cover 26 by means of adhesive, snap-fit, or screws. In the illustrated embodiment, the bent portion 128 is detachably fixed to the bottom of the cover 26 by screws. For example, a fixing hole is provided on the bent portion 128, and a screw hole is provided on the bottom surface of the cover 26. The screw passes through the fixing hole and is threaded into the screw hole to fix the bent portion 128 and the suspension member 110.

[0061] In the illustrated embodiment, the test membrane and the mounting plate 112 can be detachably fixed by means of adhesive, clips or screws, so as to facilitate the installation and removal of the test membrane. After the test membrane is removed and the collected nanopowder is transferred, the test membrane can be cleaned for reuse.

[0062] This application sets a test membrane layer inside the collection tank 12, and uses the test membrane layer to collect a portion of the nanopowder for testing. There is no need to disassemble the entire collection tank 12. After the reaction is completed, only the mounting plate 112 needs to be removed, and then the test membrane layer can be removed for testing. The test membrane layer can be cleaned and reinstalled for reuse, reducing costs and greatly simplifying the process of transferring nanopowder, bringing convenience to users.

[0063] In summary, this application provides a nanomaterial collection device, including a collection tank, an electrode module, and a collection membrane. The collection tank includes a detachably connected main body and a cover, which together form a collection cavity. The electrode module is located within the collection cavity and connected to the cover for electrical connection to an external power source, used for generating nanopowder from an electro-explosive metal target. The collection membrane is detachably connected to the inner surface of the main body for collecting the nanopowder. This application achieves easy separation from the collection tank by detachably installing the collection membrane within the collection tank. The nanopowder generated by the electro-explosion is directly collected on the collection membrane. After collection, the cover is opened, the collection membrane is removed from the main body, and the nanopowder on the membrane is collected. After collection, the collection membrane can be cleaned and reinstalled in the collection tank for reuse. This greatly reduces the difficulty of collecting nanopowder, avoids the cumbersome operation of removing the entire collection tank, and prevents contamination of the collection tank by other nanopowder, thus improving the purity of the collected powder and making the entire process convenient and quick.

[0064] The concepts described herein may be implemented in other forms without departing from their spirit and characteristics. The specific embodiments disclosed should be considered illustrative rather than restrictive. Therefore, the scope of this application is determined by the appended claims, and not by the preceding description. Any changes within the literal meaning and equivalent scope of the claims should fall within the scope of those claims.

Claims

1. A nanomaterial collection device, characterized in that, The device includes a collection tank, an electrode module, and a collection membrane. The collection tank includes a detachably connected tank body and a cover, which together form a collection cavity. The electrode module is disposed within the collection cavity and connected to the cover for electrical connection with an external power source. It is used to generate nanopowder from an electro-explosive metal target. The collection membrane is detachably connected to the inner surface of the tank body for collecting the nanopowder.

2. The nanomaterial collection device as described in claim 1, characterized in that, The tank body includes a bottom tank wall and side tank walls connected to the periphery of the bottom tank wall. The collection membrane layer includes a bottom membrane layer and side membrane layers connected to the periphery of the bottom membrane layer. The bottom membrane layer is connected to the inner surface of the bottom tank wall, and the side membrane layers are connected to the inner surface of the side tank wall.

3. The nanomaterial collection device as described in claim 1, characterized in that, The collecting membrane layer can be detachably attached to the inner surface of the tank body by adhesive; or, the collecting membrane layer can be detachably connected to the inner surface of the tank body by means of clips or screws.

4. The nanomaterial collection device according to any one of claims 1-3, characterized in that, It also includes an installation structure for mounting a test membrane layer, the installation structure being disposed within the collection chamber and detachably connected to the cover, the test membrane layer being used to collect the nanopowder.

5. The nanomaterial collection device as described in claim 4, characterized in that, The mounting structure includes a suspension member and a mounting plate. One end of the suspension member is detachably connected to the cover, and the mounting plate is mounted on the other end of the suspension member, with the mounting plate positioned close to the metal target.

6. The nanomaterial collection device as described in claim 5, characterized in that, The suspension component includes a first suspension arm and a second suspension arm. The first suspension arm is detachably fixed to the cover body, and the mounting plate is detachably installed on the second suspension arm. The first suspension arm is provided with a first sliding part, and the second suspension arm is provided with a second sliding part. The first sliding part and the second sliding part are slidably connected.

7. The nanomaterial collection device as described in claim 5, characterized in that, The suspension component includes a first suspension arm and a second suspension arm. One end of the first suspension arm is detachably fixed to the cover. The first suspension arm is provided with at least one first fixing part. The second suspension arm includes a fixed part and a connecting part connected to each other. The fixed part is provided with at least one second fixing part. The mounting plate is detachably installed on the connecting part. The first fixing part and the second fixing part are detachably fixed.

8. The nanomaterial collection device as described in claim 7, characterized in that, One end of the first suspension arm is provided with a bent part, which is connected to the cover and can be detachably fixed to the cover by means of adhesive, buckle or screw.

9. The nanomaterial collection device as described in claim 5, characterized in that, The test membrane layer and the mounting plate can be detached and fixed by means of adhesive, clips or screws.

10. The nanomaterial collection device as described in claim 4, characterized in that, The test membrane is a carbon membrane.

Images