Single-walled carbon nanotube receiving and storage device with rapping and pneumatic assistance

Abstract

The present application relates to single-walled carbon nanotube technical field, especially a kind of single-walled carbon nanotube storage device with shaking and pneumatic auxiliary, including powder flow guide mechanism, collection mechanism and storage tank;Powder flow guide mechanism is sequentially connected with collection mechanism, storage tank below, pneumatic auxiliary mechanism is set on storage tank, and multiple pneumatic opening and closing units are set on pneumatic auxiliary mechanism, to open or close by pneumatic auxiliary mechanism triggering pneumatic opening and closing unit, to control powder input storage tank by pneumatic opening and closing unit;Separation unit, shaking guide unit, support and dispersion unit are set in storage tank, and discharge mechanism is set in the lower part of storage tank for receiving the powder discharged by shaking guide unit.The powder is stored by separation unit in the present application, to avoid agglomeration caused by accumulation and extrusion, cooperate with shaking guide unit to promote the smooth falling of powder to prevent blockage, and pneumatic conveying mechanism cooperates with powder flow guide mechanism and collection mechanism to form air flow loop, to realize the acceptance and transportation of powder.

Description

Technical Field

[0001] This invention relates to the field of single-walled carbon nanotube technology, and in particular to a single-walled carbon nanotube receiving and storage device with rapping and pneumatic assistance. Background Technology

[0002] Single-walled carbon nanotubes (SUVs) exhibit broad application prospects in composite materials, energy storage, and electronic devices due to their unique electrical, mechanical, and thermal properties. In industry, pneumatic conveying is commonly used for the collection and storage of SUV powders, with typical existing equipment usually consisting of receiving pipes, collection boxes, and storage tanks. However, existing technologies suffer from the following problems:

[0003] I. Powder Receiving and Temporary Storage: Existing equipment mostly uses open silos or straight pipelines to receive pneumatically conveyed powders. The lack of airflow guidance and stable structure makes it easy for high specific surface area single-walled carbon nanotubes to escape or adhere to the inner wall of the equipment under airflow disturbance, resulting in low material collection efficiency and material waste.

[0004] II. Powder Storage and Anti-agglomeration: Storage tanks are mostly one-piece hollow structures, where powders accumulate freely inside the tank. Gravity compression increases the van der Waals forces between particles, making them prone to irreversible agglomeration and affecting subsequent application performance.

[0005] III. Powder Output and Anti-clogging: Existing equipment often causes blockages at the outlet of the storage tank due to the accumulation or adhesion of powder during packaging, affecting packaging efficiency and continuity; the lack of a rapping and discharge coordination mechanism makes it difficult to effectively remove the attached powder and guide it to be output smoothly.

[0006] IV. Pneumatic Conveying and Sealing: The pneumatic conveying system lacks a reliable opening and closing control unit, which can easily lead to powder leakage or airflow backflow during the conveying process. This not only causes material loss, but also allows air to enter due to poor sealing, causing oxidation and deterioration of the single-walled carbon nanotubes. Summary of the Invention

[0007] The present invention aims to solve the above-mentioned defects and provide a single-walled carbon nanotube receiving and storage device with vibration and pneumatic assistance.

[0008] In order to overcome the defects in the background technology, the technical solution adopted by the present invention to solve its technical problem is: a single-walled carbon nanotube receiving and storage device with vibration and pneumatic assistance, including a powder guiding mechanism for stably receiving carbon nanotube powder output by pneumatic means, a collection mechanism for temporarily storing the powder output by the powder guiding mechanism, and a storage tank.

[0009] The powder guiding mechanism is connected to the collecting mechanism at its lower part, and the collecting mechanism is connected to the storage tank at its lower part. The storage tank is provided with a pneumatic auxiliary mechanism that draws the powder from the collecting mechanism into the storage tank. The pneumatic auxiliary mechanism is provided with multiple pneumatic opening and closing units, so that the pneumatic auxiliary mechanism can trigger the pneumatic opening and closing units to open or close, thereby controlling the powder to enter the storage tank through the pneumatic opening and closing units.

[0010] The storage tank is equipped with a separating unit for separating and storing powder, a vibrating discharge unit for vibrating the separating unit to cause the attached powder to fall off and receive it, a support part for maintaining and supporting the separating unit, and a dispersing unit for triggering a pneumatic opening and closing unit to keep it closed and sealing the connection between the storage tank and the pneumatic auxiliary mechanism. The lower part of the storage tank is equipped with a discharge mechanism for receiving the powder discharged by the vibrating discharge unit.

[0011] Further improvements include the powder guiding mechanism comprising a guiding box and a conveying flange pipe disposed on the guiding box, wherein the output end of the conveying flange pipe faces the bottom of the guiding box.

[0012] Further improvements include the provision of an air delivery mechanism above the flow guide box, which guides nitrogen gas flow from top to bottom into the flow guide box.

[0013] Further improvements include the provision of a honeycomb guide section at the outlet of the guide box.

[0014] Further improvements include the collection mechanism comprising a collection box, wherein the collection box is provided with a primary filter section for coarse filtration and a secondary filter section for fine filtration, and the collection box is provided with a two-way air guide connection port, which is connected to an air supply mechanism.

[0015] Further improvements include the pneumatic auxiliary mechanism comprising a bidirectional conveying box, the lower end of which is connected to the storage tank, and the pneumatic opening and closing unit located on the circumferential outer wall of the lower end of the bidirectional conveying box, with a pre-set connection port on the bidirectional conveying box connected to the air supply mechanism via a pipeline.

[0016] Further improvements include the addition of a conical filter section inside the bidirectional conveyor box.

[0017] Further improvements include the dispersion unit comprising a rotating cover, a sliding bearing, a fixed ring disposed on the inner wall of the storage tank, and a rotating lifting unit disposed on the outer wall of the storage tank. The upper end of the rotating cover has a conical structure, and the lower end has a groove in which a sliding bearing is embedded. A movable ring is embedded in the central hole of the sliding bearing, and the movable ring is slidably connected to the fixed ring on the same axis.

[0018] Further improvements include the pneumatic opening and closing unit comprising an inlet frame and an opening and closing cover. The opening and closing cover is fitted onto one side port of the inlet frame and is axially slidably connected to the inlet frame. A window is provided on the outer wall of one circumferential side of the opening and closing cover, and the outer wall of the opening and closing cover adjacent to the window extends along the radial direction of the inlet frame to form an extension. The end of the extension is a slope, and the slope of the slope is the same as the slope of the tapered structure at the upper end of the rotating cover.

[0019] Further improvements include the separation unit comprising a separation block, wherein multiple vertical channels are uniformly and vertically opened within the separation block, and multiple guide plates are inclinedly arranged within each vertical channel, with adjacent guide plates arranged in a relatively staggered manner, so that the powder entering the vertical channel flows downward in an S-shaped path.

[0020] Further improvements include the following: the vibration discharge unit includes a lifting guide block that moves up and down within the storage tank and a drive motor. The top of the lifting guide block is constructed as a conical structure that can guide the powder into the discharge mechanism. Multiple support plates are vertically arranged on the top of the lifting guide block. The drive motor installed on the storage tank is connected to a cam. The outer edge of the cam is in contact with the outer edge of the rotating bearing wheel on the lifting guide block. Vibration protrusions are provided near the point furthest from the rotation center of the cam.

[0021] Further improvements include the provision of a weighing detection unit below the storage tank for detecting powder residue on the rapping output unit.

[0022] Further improvements include the weighing detection unit comprising a guide post disposed below the rapping output unit and a detection bracket disposed below the storage tank, wherein a pressure sensor located below the guide post is mounted on the detection bracket, and the guide post extends to the outside after penetrating the bottom wall of the storage tank.

[0023] Further improvements include the discharge mechanism comprising a discharge body and an opening / closing cylinder disposed on the discharge body. The discharge body is provided with a discharge channel. The inlet end of the discharge channel is connected to the discharge port opened on the storage tank. The output end of the opening / closing cylinder passes through the discharge channel and is connected to the sealing piston, driving the sealing piston to move along the channel.

[0024] The beneficial effects of this invention are as follows: In this design, the powder is stored through a separating unit, which disperses the storage gravity and avoids the accumulation and compression that causes powder agglomeration. Combined with a rapping and discharging unit, the powder adhering to the separating unit falls smoothly, preventing blockage. The pneumatic conveying mechanism, powder guiding mechanism, and collection mechanism work together to form an airflow loop, enabling rapid powder reception and conveying, thus improving storage efficiency. The powder guiding mechanism can stably receive the pneumatically output carbon nanotube powder, avoiding the problems of powder scattering or chaotic conveying caused by airflow disturbances during traditional equipment reception, thus improving material collection stability. The collection mechanism can temporarily store the powder output by the guiding mechanism, acting as a transition buffer to prevent powder from directly entering the storage tank and causing accumulation chaos, laying the foundation for subsequent orderly conveying. The pneumatic auxiliary mechanism on the storage tank, in conjunction with the pneumatic opening and closing unit, can flexibly control the input of powder into the storage tank. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] Figure 1 This is a front sectional view of the present invention;

[0027] Figure 2 This is an assembly diagram of the cam and the bearing wheel in this invention;

[0028] Figure 3 This is a top view of the lifting guide block in this invention;

[0029] Figure 4 yes Figure 1 Enlarged view of B in the middle;

[0030] Figure 5 This is a front sectional view of the discharge mechanism in this invention;

[0031] Figure 6 This is a front cross-sectional view of the dispersed unit in this invention;

[0032] Figure 7 This is a front cross-sectional view of the weighing detection unit in this invention;

[0033] Figure 8 yes Figure 1 Enlarged view of A in the middle;

[0034] In the figure, 1-weighing detection unit, 2-vibrating output unit, 3-support part, 4-discharge mechanism, 5-dispersion unit, 6-collection mechanism, 7-powder guiding mechanism, 8-pneumatic auxiliary mechanism, 9-air supply mechanism, 10-separation unit, 11-storage tank, 12-discharge port, 13-pneumatic opening and closing unit;

[0035] 101-Guide post, 102-Detection bracket, 103-Pressure sensor;

[0036] 201-Support plate, 202-Lifting guide block, 203-Drive motor, 204-Bearing wheel, 205-Vibration protrusion, 206-Cam;

[0037] 401-Opening and closing cylinder, 402-Outlet body, 403-Blocking piston, 404-Outlet channel;

[0038] 501-Rotary lifting unit, 502-Fixed ring, 503-Moving ring, 504-Sliding bearing, 505-Rotary cover;

[0039] 601-Two-way air guide connection port, 602-Secondary filter section, 603-Primary filter section, 604-Collection box;

[0040] 701-Flow guide box, 702-Conveying flange pipe, 703-Honeycomb flow guide section;

[0041] 801 - Bidirectional conveyor box; 802 - Conical filter section;

[0042] 1001 - Separator block, 1002 - Deflector plate, 1003 - Vertical channel;

[0043] 1301 - Opening / closing cover, 1302 - Inlet frame, 1303 - Extension. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] refer to Figure 1 A single-walled carbon nanotube receiving and storage device with vibration and pneumatic assistance includes a powder guiding mechanism 7 for stably receiving carbon nanotube powder output by pneumatic means, a collection mechanism 6 for temporarily storing the powder output by the powder guiding mechanism 7, and a storage tank 11.

[0046] The powder guiding mechanism 7 is connected to the collecting mechanism 6 at the bottom, thereby guiding the powder received by the powder guiding mechanism 7 into the collecting mechanism 6 to achieve initial powder aggregation. The lower part of the collecting mechanism 6 is connected to the storage tank 11. The storage tank 11 is provided with a pneumatic auxiliary mechanism 8 that sucks the powder in the collecting mechanism 6 into the storage tank 11. The pneumatic auxiliary mechanism 8 is provided with a plurality of pneumatic opening and closing units 13, thereby triggering the pneumatic opening and closing units 13 to open or close, so as to control the powder to enter the storage tank 11 through the pneumatic opening and closing units 13.

[0047] The storage tank 11 is equipped with a separating unit 10 for separating and storing powder, a vibrating and discharging unit 2 for vibrating the separating unit 10 to remove and collect the attached powder, a support part 3 for maintaining the separating unit 10, and a dispersing unit 5 for triggering the pneumatic opening and closing unit 13 to keep it closed and sealing the connection between the storage tank 11 and the pneumatic auxiliary mechanism 8. The dispersing unit 5 has two main functions: first, to prevent external air from entering the storage tank 11, maintaining a sealed environment inside the tank and preventing moisture intrusion that could cause powder agglomeration; second, to evenly disperse the powder drawn into the tank to various areas inside the tank, avoiding local accumulation. The storage tank 11 is equipped with a discharge mechanism 4 at the bottom for receiving the powder discharged by the vibrating and discharging unit 2. In use, the discharge mechanism 4 is connected to a special packaging container, and opening the discharge mechanism 4 enables the subsequent packaging and output of the powder.

[0048] For specific embodiments, please refer to Figure 1 The powder guiding mechanism 7 includes a guiding box 701 and a conveying flange pipe 702 disposed on the guiding box 701. The input end of the conveying flange pipe 702 is connected to a pneumatic conveying device for carbon nanotube powder through a flange, so as to realize stable powder input. The output end of the conveying flange pipe 702 faces the bottom of the guiding box 701, guiding the powder downward and quickly conveying it in a directional manner, so as to quickly input it into the collection mechanism 6 and realize the initial powder aggregation.

[0049] In a further embodiment, reference is made to Figure 1 The flow guide box 701 is provided with an air supply mechanism 9 above it, so that nitrogen gas flow is introduced into the flow guide box 701 from top to bottom through the air supply mechanism 9. This air flow can suppress the dispersion of single-walled carbon nanotube powder in the flow guide box 701, and at the same time assist the powder to fall quickly into the collection mechanism 6, thereby improving the conveying efficiency. Nitrogen gas, as an inert gas, ensures that the powder will not be oxidized and deteriorated during the conveying process.

[0050] In a further embodiment, a honeycomb guide section 703 is provided at the outlet of the guide box 701; the honeycomb guide section 703 forms a directional guide by regulating the airflow direction, and can effectively prevent the powder in the collection mechanism 6 from flowing back into the guide box 701, ensuring that the material is input into the collection mechanism 6 in one direction.

[0051] For specific embodiments, please refer to Figure 1The collection mechanism 6 includes a collection box 604, which contains a primary filter 603 for coarse filtration and a secondary filter 602 for fine filtration. The collection box 604 has a bidirectional airflow port 601 connected to an air supply mechanism. Airflow within the collection box 604 passes sequentially through the primary filter 603, the secondary filter 602, and the bidirectional airflow port 601 before being output, achieving graded filtration and separation of powder and airflow. This design balances the air pressure within the collection box 604. When the air supply mechanism supplies air to the collection box 604 through the bidirectional airflow port 601, it removes powder adhering to the primary filter 603 and the secondary filter 602. After the pneumatic auxiliary mechanism 8 opens the pneumatic opening and closing unit 13, the collected powder is drawn into the storage tank 11.

[0052] For specific embodiments, please refer to Figure 1 The pneumatic auxiliary mechanism 8 includes a bidirectional conveying box 801, the lower end of which is connected to the storage tank 11. The pneumatic opening and closing unit 13 is located on the circumferential outer wall of the lower end of the bidirectional conveying box 801. A pre-set connection port on the bidirectional conveying box 801 is connected to the gas supply mechanism through a pipeline. When the gas supply mechanism evacuates air from the bidirectional conveying box 801 through the connection port, a negative pressure is simultaneously formed inside the bidirectional conveying box 801 and the storage tank 11, triggering the pneumatic opening and closing unit 13 to open automatically, providing a channel for powder conveying. When the gas supply mechanism blows nitrogen into the bidirectional conveying box 801 through the same interface, the pressure inside the storage tank 11 increases, triggering the pneumatic opening and closing unit 13 to close automatically, blocking powder conveying. The bidirectional conveying box 801 controls the opening and closing state of the pneumatic opening and closing unit 13 by switching the pressure of evacuation / blowing. Furthermore, the pneumatic auxiliary mechanism 8 can extract some of the gas output during the pneumatic conveying of single-walled carbon nanotubes, thereby balancing the gas pressure inside the collection mechanism 6 to a certain extent.

[0053] In a further embodiment, to prevent powder from entering the gas supply mechanism, the bidirectional conveying box 801 is provided with a conical filter section 802, and at least two conical filter sections 802 are provided. When the gas supply mechanism draws gas from the bidirectional conveying box 801, the airflow is output through the conical filter section 802, and the special structure of the conical filter section 802 can make the powder gather at the center. When the gas supply mechanism blows nitrogen into the bidirectional conveying box 801, the airflow can remove the powder attached to the surface of the conical filter section 802. This design not only ensures that the filter section continuously and effectively intercepts powder, but also avoids powder entering the gas supply mechanism and causing pollution.

[0054] For specific embodiments, please refer to Figure 6The dispersion unit 5 includes a rotating cover 505, a sliding bearing 504, a fixing ring 502 disposed on the inner wall of the storage tank 11, and a rotating lifting unit 501 disposed on the outer wall of the storage tank 11. The upper end of the rotating cover 505 has a conical structure, and the sliding bearing 504 is embedded in the groove at the lower end. The conical structure facilitates the uniform distribution of powder into all parts of the separating unit 10. A moving ring 503 is embedded in the central hole of the sliding bearing 504. The moving ring 503 is slidably connected to the fixing ring 502 on the same axis. The sliding bearing 504 provides rotational guidance for the rotating cover 505 to ensure its smooth rotation. The sliding engagement between the moving ring 503 and the fixing ring 502 provides a path for the rotating cover 505 to rise and fall, ensuring its smooth up and down movement. By driving the rotating cover 505 to rise, fall, and rotate through the rotating lifting unit 501, the connection between the storage tank 11 and the pneumatic auxiliary mechanism 8 can be sealed, and the powder can be evenly dispersed.

[0055] For specific embodiments, please refer to Figure 8 The pneumatic opening and closing unit 13 includes an inlet frame 1302 and an opening and closing cover 1301. The opening and closing cover 1301 covers one side port of the inlet frame 1302 and is axially slidably connected to the inlet frame 1302. A window is provided on one circumferential outer wall of the opening and closing cover 1301, and an extension portion 1303 extends along the radial direction of the inlet frame 1302 on the outer wall adjacent to the window. The extension portion 1303 guides and outputs the powder passing through the window. The end of the extension 1303 is sloped, and the slope of the slope is the same as the slope of the conical structure at the upper end of the rotating cover 505. When the pneumatic auxiliary mechanism 8 makes the air pressure in the collecting mechanism 6 greater than the air pressure in the storage tank 11, the gas in the collecting mechanism 6 pushes the opening and closing cover 1301 to slide, making the inlet frame 1302 open, and the powder is sucked into the storage tank 11 through the window with the airflow. Conversely, when the pneumatic auxiliary mechanism 8 increases the air pressure in the storage tank 11, the gas pushes the opening and closing cover 1301 to slide in the opposite direction, closing the port of the inlet frame 1302 and blocking the powder delivery. In addition, when the rotating cover 505 rises, its upper conical structure can push the extension 1303 through the slope of the extension 1303, driving the opening and closing cover 1301 to move to keep the port of the inlet frame 1302 closed, thus achieving mechanical assisted sealing.

[0056] For specific embodiments, please refer to Figure 4The separating unit 10 includes a separating block 1001, in which multiple vertical channels 1003 are uniformly and vertically penetrated. Multiple guide plates 1002 are inclinedly arranged within each vertical channel 1003, with adjacent guide plates 1002 arranged in a staggered manner to allow the powder entering the vertical channel 1003 to flow downwards in an S-shaped path. On one hand, the S-shaped flow path guides the powder to fall evenly, avoiding agglomeration caused by gravity concentration. On the other hand, when the powder is stored in the vertical channel 1003, the lower powder experiences greater gravity than the upper powder; the staggered guide plates 1002 can share some of the pressure from the upper powder, further reducing agglomeration caused by gravity compression. Furthermore, when packaging single-walled carbon nanotube powder, the powder in the vertical channel 1003 can gradually fall sequentially, greatly improving packaging efficiency and solving the problem of accumulation of single-particle carbon nanotube powder during storage and packaging.

[0057] For specific embodiments, please refer to Figure 1 , Figure 2 and Figure 3 The vibrating discharge unit 2 includes a lifting guide block 202 that moves up and down within the storage tank 11 and a drive motor 203. The top of the lifting guide block 202 is constructed as a conical structure that guides the powder into the discharge mechanism 4. Multiple support plates 201 are vertically arranged on the top of the lifting guide block 202. The support plates 201 and the inner wall of the storage tank 11 enclose a powder storage space, which can receive the powder falling from the separating unit 10 and guide it into the discharge mechanism 4. The drive motor 203 mounted on the storage tank 11 is connected to a cam 206. The outer edge of the cam 206 is flush with the lifting guide block 202. The outer edge of the rotating bearing wheel 204 is in contact with the cam 206, so that the two rotate synchronously. When the drive motor 203 drives the cam 206 to rotate, the bearing wheel 204 rolls along the outer edge of the cam 206, driving the lifting guide block 202 to move up and down. When the farthest point of the cam 206 (farthest from the rotation center) contacts the bearing wheel 204, the lifting guide block 202 rises to the preset high position, and the support plate 201 contacts the separating unit 10 to receive the powder. When the closest point of the cam 206 (closest to the rotation center) contacts the cam 206, the lifting guide block 202 drops to the discharge position, and the powder slides into the discharge mechanism 4 through the conical surface of the lifting guide block 202. In addition, the cam 206 is provided with a vibration protrusion 205 near the farthest point from the rotation center. The vibration protrusion 205 cooperates with the cam 206 to support the bearing wheel 204, so that the lifting guide block 202 is kept at a preset high position. Then, the vibration protrusion 205 is used to vibrate the separating unit 10, which not only enhances the support plate 201's support stability for the separating unit 10, but also promotes the removal of the attached powder.

[0058] For specific embodiments, please refer to Figure 7A weighing detection unit 1 is provided below the storage tank 11 to detect the powder residue on the vibrating discharge unit 2. The weighing detection unit 1 includes a guide post 101 located below the vibrating discharge unit 2 and a detection bracket 102 located below the storage tank 11. A pressure sensor 103 located below the guide post 101 is installed on the detection bracket 102. The detection end of the pressure sensor 103 faces the guide post 101. The guide post 101 penetrates the bottom wall of the storage tank 11 and extends to the outside. When the vibrating discharge unit 2 conveys powder to the discharge mechanism 4, the detection end of the pressure sensor 103 contacts the guide post 101 and supports it. The weighing detection of the vibrating discharge unit 2 is achieved by sensing the pressure change. When it is detected that the powder in the vibrating discharge unit 2 has been completely discharged to the discharge mechanism 4, the system triggers the vibrating discharge unit 2 to vibrate the separating unit 10 again to ensure that the powder is continuously and efficiently discharged. The guide post 101 plays a guiding role for the vibrating discharge unit 2.

[0059] For specific embodiments, please refer to Figure 5 The discharge mechanism 4 includes a discharge body 402 and an opening / closing cylinder 401 disposed on the discharge body 402. The discharge body 402 is provided with a discharge channel 404. The inlet end of the discharge channel 404 is connected to the discharge port 12 opened on the storage tank 11. The output end of the opening / closing cylinder 401 passes through the discharge channel 404 and is connected to the sealing piston 403, driving the sealing piston 403 to move along the channel. The sealing piston 403, through its sealing cooperation with the discharge channel 404, can ensure the airtightness of the storage tank 11, and can also control the opening and closing of the channel by the extension and retraction of the opening / closing cylinder 401: when the piston is closed, the channel is blocked to maintain the seal inside the tank; when the piston is open, the powder is released, realizing the directional output of the discharge mechanism 4.

[0060] Working principle: The pneumatic conveying equipment is connected to the conveying flange pipe 702 through the pipeline to convey the single-wall carbon nanotube powder from top to bottom; the air supply mechanism 9 simultaneously outputs nitrogen gas flow from top to bottom, which not only pushes the powder into the collection mechanism 6 quickly, but also prevents the powder from drifting in the guide box 701.

[0061] At this time, the powder gradually settles in the collection box 604. Due to the large amount of airflow introduced by the air supply mechanism 9 and the pneumatic auxiliary mechanism 8, the gas is filtered through the primary filter section 603 and the secondary filter section 602 in sequence, and then discharged from the bidirectional air guide connection port 601 to achieve air pressure balance in the box. When the air supply mechanism evacuates the bidirectional conveying box 801, a negative pressure is formed in the storage tank 11 and the bidirectional conveying box 801 (the air pressure is lower than that in the collection box 604). The air in the collection box 604 pushes the opening and closing cover 1301 to move, and the powder is sucked into the storage tank 11 through the inlet frame 1302. At this time, the extension 1303 of the opening and closing cover 1301 simultaneously guides the powder downward and directionally input into the storage tank 11 to prevent the powder from entering the bidirectional conveying box 801.

[0062] During the process of powder entering the storage tank 11, the rotary lifting unit 501 drives the rotary cover 505 to rotate, which can evenly disperse the falling powder to various parts of the separating unit 10. When the storage tank 11 is full, the gas supply mechanism blows nitrogen into the bidirectional conveying box 801, so that the gas pressure in the bidirectional conveying box 801 and the storage tank 11 is higher than that in the collection box 604, thereby causing the air in the storage tank 11 to push the opening and closing cover 1301 to close the inlet frame 1302. The rotary lifting unit 501 drives the rotary cover 505 to rise, sealing the connection between the pneumatic auxiliary mechanism 8 and the storage tank 11, and keeping the opening and closing cover 1301 closed to the inlet frame 1302. Nitrogen can also be injected into the storage tank 11 through the pneumatic auxiliary mechanism 8 to test the sealing performance of the storage tank 11.

[0063] After the powder enters the vertical channel 1003 of the partition unit 10, it falls along the S-shaped path formed by the guide plate 1002 and gradually fills the space between the guide plates 1002. This structure can avoid the accumulation and compression of powder and prevent the single-walled carbon nanotube particles from forming irreversible agglomeration due to the enhancement of van der Waals forces caused by close contact.

[0064] The powder at the bottom accumulates in the vibrating discharge unit 2. The drive motor 203 drives the cam 206 to rotate, and the bearing wheel 204 rolls along the outer edge of the cam 206. When the closest point of the cam 206 contacts the bearing wheel 204, the lifting guide block 202 drops to the discharge position, and the powder enters the discharge mechanism 4 through the discharge port 12. When the weighing detection unit 1 detects that the powder in the vibrating discharge unit 2 has been completely discharged and no new powder falls into the separating unit 10, the cam 206 continues to rotate. When its farthest point contacts the bearing wheel 204, the vibrating protrusion 205 pushes the lifting guide block 202 to move further upward. The support plate 201 vibrates the separating unit 10, causing the residual or blocked powder to fall into the vibrating discharge unit 2. The above steps are repeated to achieve continuous powder feeding.

[0065] In particular, some vertical channels 1003 in the dividing unit 10 will be opened first due to the small amount of powder stored. The nitrogen supplied by the gas supply mechanism to the bidirectional conveying box 801 will be quickly discharged through the vertical channel 1003, the rapping and output unit 2, and the discharge mechanism 4. This method will accelerate the output of powder in other unopened vertical channels 1003 through airflow.

[0066] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A single-walled carbon nanotube collection silo with rapping and pneumatic assistance, characterized by, The application relates to a powder guiding mechanism (7) for stably receiving pneumatic output carbon nanotube powder, a collecting mechanism (6) for temporarily storing the powder output by the powder guiding mechanism (7), and a storage tank (11). The lower part of the collecting mechanism (6) is connected with the storage tank (11), and the storage tank (11) is provided with a pneumatic auxiliary mechanism (8) for sucking the powder in the collecting mechanism (6) into the storage tank (11), and a plurality of pneumatic opening and closing units (13) are arranged on the pneumatic auxiliary mechanism (8), so that the pneumatic opening and closing units (13) are triggered to be opened or closed by the pneumatic auxiliary mechanism (8), so as to control the powder to be input into the storage tank (11) through the pneumatic opening and closing units (13). The storage tank (11) is provided with a separation unit (10) for separating the stored powder, a vibrating and guiding unit (2) for vibrating and guiding the separation unit (10) to make the adhered powder fall off and be received, a support part (3) for supporting the separation unit (10), and a dispersion unit (5) for triggering the pneumatic opening and closing units (13) to keep in a closed state and block the connection between the storage tank (11) and the pneumatic auxiliary mechanism (8), and the lower part of the storage tank (11) is provided with a discharging mechanism (4) for receiving the powder discharged by the vibrating and guiding unit (2). The collecting mechanism (6) comprises a collecting box (604), the collecting box (604) is provided with a primary filtering part (603) for coarse filtering and a secondary filtering part (602) for fine filtering, and a two-way air guiding connector (601) is arranged on the collecting box (604) and connected with a gas supply mechanism. The pneumatic auxiliary mechanism (8) comprises a two-way conveying box (801), the lower end of the two-way conveying box (801) is connected with the storage tank (11), the pneumatic opening and closing units (13) are located on the circumferential outer wall of the lower end of the two-way conveying box (801), and the connecting port of the two-way conveying box (801) is connected with the gas supply mechanism through a pipeline, when the gas supply mechanism sucks air in the two-way conveying box (801) through the connecting port, negative pressure is formed in the two-way conveying box (801) and the storage tank (11) synchronously, the pneumatic opening and closing units (13) are triggered to be automatically opened, and a channel is provided for powder conveying; when the gas supply mechanism blows nitrogen into the two-way conveying box (801) through the same interface, the pressure in the storage tank (11) is increased, the pneumatic opening and closing units (13) are triggered to be automatically closed, and powder conveying is blocked. The pneumatic opening and closing unit (13) comprises an introduction frame (1302) and an opening and closing cover (1301), the opening and closing cover (1301) covers one side port of the introduction frame (1302), the opening and closing cover (1301) is axially slidably connected with the introduction frame (1302), a window is formed in the outer wall of the circumferential side of the opening and closing cover (1301), an extension (1303) is formed on the outer wall adjacent to the window of the opening and closing cover (1301) and extends along the radial direction of the introduction frame (1302), the end of the extension (1303) is a slope, and the slope has the same slope as the slope of the conical structure on the upper end of the rotating cover (505).

2. The single-walled carbon nanotube collection bin device with rapping and pneumatic assistance according to claim 1, characterized in that: The powder flow guide mechanism (7) comprises a flow guide box (701) and a conveying flange pipe (702) arranged on the flow guide box (701), and the output end of the conveying flange pipe (702) faces the inner bottom of the flow guide box (701).

3. The single-walled carbon nanotube collection bin apparatus with rapping and pneumatic assist of claim 2, wherein: The flow guide box (701) is provided with a gas feeding mechanism (9) above, so that the nitrogen gas flow from top to bottom is input into the flow guide box (701) through the gas feeding mechanism (9).

4. The single-walled carbon nanotube collection bin apparatus with rapping and pneumatic assist of claim 1, wherein: The dispersion unit (5) comprises a rotating cover (505), a sliding bearing (504), a fixed ring (502) arranged on the inner wall of the storage tank (11), and a rotating lifting unit (501) arranged on the outer wall of the storage tank (11), the upper end of the rotating cover (505) is a conical structure, the sliding bearing (504) is embedded in the groove at the lower end, the center hole of the sliding bearing (504) is embedded with a moving ring (503), and the moving ring (503) is coaxially and slidably connected with the fixed ring (502).

5. The single-walled carbon nanotube collection bin of claim 1, wherein: The separation unit (10) comprises a separation block (1001), a plurality of vertical channels (1003) are evenly and vertically formed in the separation block (1001), a plurality of flow guide plates (1002) are arranged in each vertical channel (1003) at an angle, and adjacent flow guide plates (1002) are arranged in a relative staggered manner, so that the powder entering the vertical channel (1003) flows downward in an S-shaped path.

6. The single-walled carbon nanotube collection bin of claim 1, wherein: The vibrating and guiding unit (2) comprises a lifting guide block (202) which is accommodated in the storage tank (11) and moves up and down, and a driving motor (203), the top of the lifting guide block (202) is configured as a conical surface structure which can guide the powder into and out of the feeding mechanism (4), a plurality of support plates (201) are vertically arranged on the top of the lifting guide block (202), the driving motor (203) installed on the storage tank (11) is connected with a cam (206), the outer edge surface of the cam (206) is in contact with the outer edge surface of a bearing wheel (204) which is rotatably arranged on the lifting guide block (202), and a vibrating protrusion (205) is arranged near the point farthest from the rotation center of the cam (206).

7. The single-walled carbon nanotube collection bin of claim 1, wherein: The discharging mechanism (4) comprises a leading body (402) and an opening and closing cylinder (401) arranged on the leading body (402), the leading body (402) is internally provided with a leading channel (404), the inlet end of the leading channel (404) is communicated with a discharging port (12) arranged on the storage tank (11), the output end of the opening and closing cylinder (401) is arranged into the leading channel (404) and connected with a blocking piston (403), and the blocking piston (403) is driven to move in the channel.

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