Continuous preparation device for carbon nanomaterials

Abstract

The utility model relates to the technical field of nanometer material devices, in particular to a carbon nanometer material continuous preparation device which comprises a machine table, a reaction cabin, a cathode clamping mechanism, an anode clamping mechanism, a cathode propelling mechanism, an anode supplying and propelling mechanism and the like. The continuous anode bar supply and product collection mode is adopted, other steps except for bar adding and product collection are controlled and completed by the upper computer, the carbon nanomaterial can be continuously prepared, and especially the design that the anode propelling speed is adjusted according to voltage feedback is adopted, so that the carbon nanomaterial can be continuously prepared. The repeatability of the process of preparing the carbon nanomaterials through the electric arc and the stability of products are improved, meanwhile, manpower is saved, the production efficiency is improved, in addition, complete cloth-shaped or flocculent products deposited on the cavity wall of the electric arc furnace and blocky or powdery products scattered at the cavity bottom can be collected through physical scraping and sweeping, and the production efficiency is improved. And simple further sorting can be carried out according to the morphology, and only high-quality cloth-shaped or flocculent products are obtained.

Description

Technical Field

[0001] The utility model relates to the technical field of nano material devices, in particular to a continuous preparation device for carbon nano materials. Background Art

[0002] The arc method is the earliest process used to prepare carbon nanomaterials. After process optimization, it has become one of the manufacturing methods that can produce carbon nanomaterials in large quantities. This method uses graphite rods or hollowed graphite rods filled with metal and graphite powder as anodes, pure graphite rods (disks) or tungsten rods (disks) as cathodes, and in a vacuum reaction chamber filled with inert gas or hydrogen. After the cathode and anode are short-circuited, the distance between the electrodes is adjusted to generate arc discharge, and the current, voltage and discharge time passing between the two electrodes are controlled to consume pure graphite rods or graphite-metal composite anodes. The ultra-high temperature at the arc core sublimates the carbon precursor into carbon vapor, and at the same time, electrons ejected from the cathode to the anode will also sputter out the carbon precursor, causing carbon to be evaporated out of the anode in the form of atoms / atomic clusters. Under the regulation of temperature gradient and concentration gradient, carbon vapor gathers into sticky carbon agglomerates in the gas phase and drifts to the cathode and furnace wall with lower temperature, gradually cools, condenses, nucleates, grows into various carbon nanoproducts, and deposits on the furnace wall. Depending on the arc conditions such as current and atmosphere and the type and content of the metal components in the anode, the obtained carbon nanoproducts can be fullerenes, carbon nanotubes, graphene, etc.

[0003] At present, the loading and pushing of the anode rod in the reaction chamber are generally carried out manually. For example, Chinese Patent Publication No. "CN108046237B" discloses an arc plasma device for preparing carbon nanomaterials, which relates to the technical field of carbon nanomaterial preparation. The device includes: a gas supply unit; an arc reaction unit, which includes: a tube body, a cathode drive mechanism, and an anode drive mechanism.

[0004] The manual method of filling and pushing the anode rod will cause errors in the timing and results of the operation. On the other hand, it relies heavily on manpower. From adding electrode rods, forming and maintaining arcs, to product collection, each device requires an operator to operate the entire process, which is not conducive to expanding the scale of production. In addition, other continuous preparation devices for carbon nanomaterials to date all rely on external electric fields, magnetic fields, or airflow to blow the products to the collection area. The products collected by the external field are all in powder form, which makes it difficult to sort the products, resulting in low quality of the crude products. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art in which the method of filling and advancing the anode rod causes errors in operation timing and operation results, is highly dependent on manpower, and has poor or unstable product quality, and to propose a continuous preparation device for carbon nanomaterials.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A carbon nanomaterial continuous preparation device is designed, comprising a machine platform and a reaction chamber placed on the machine platform, wherein a cathode clamping mechanism and an anode clamping mechanism are respectively arranged on both sides of the reaction chamber;

[0008] Wherein, a cathode driving mechanism is also arranged above the machine platform, and the cathode driving mechanism is used to drive the cathode clamping mechanism to move;

[0009] An anode rod feeding mechanism for continuously feeding the anode clamping mechanism is also provided on one side of the reaction chamber. The cathode clamping mechanism and the anode clamping mechanism are respectively connected to the negative electrode and the positive electrode of an external arc welding machine.

[0010] Furthermore, the cathode clamping mechanism includes a fixing ring with multiple clamping claws on the end surface of the fixing ring, the cathode rod is inserted between the multiple clamping claws, a locking sleeve is threadedly connected to the outer side of the fixing ring, and the locking sleeve has a conical cavity inside that abuts against the multiple clamping claws.

[0011] Furthermore, a conductive column is fixedly installed on the end surface of the fixing ring, and the conductive column is connected to the negative electrode of the arc welding machine through a wire;

[0012] A sleeve is fixedly installed on the side of the reaction chamber, and the conductive column slides in the sleeve.

[0013] Furthermore, the cathode driving mechanism includes a first motor fixed on the machine platform through a bracket, a driving rod is rotatably connected inside the sleeve, the internal thread of the driving rod is connected to a screw, and the screw is fixed to the side of the conductive column, wherein the first motor and the driving rod are transmitted through a transmission component.

[0014] Furthermore, the anode clamping mechanism comprises a fixing frame fixed to the side of the reaction chamber, a pressure rod is movably inserted in the fixing frame, and two pressure rods cooperate with the top of the fixing frame to clamp the anode rod;

[0015] Among them, two protrusions are arranged at intervals on the end surface of the pressure rod, a pull rod is placed between the protrusions of the two pressure rods, a second motor is fixed to the bottom of the fixed frame, a screw connected to the pull rod is fixed to the shaft end of the second motor, and the pressure rod is connected to the positive pole of the arc welding machine through a wire.

[0016] Further, the anode rod feeding mechanism includes a feeding bin installed on the side of the anode clamping mechanism;

[0017] The interior of the feeding bin is provided with a storage area and a feeding channel, the storage area is connected with a vacuum hole, wherein a shut-off plate is also driven to slide on the side of the feeding bin by a driving member, and the shut-off plate can close the feeding channel.

[0018] Furthermore, a bin cover is inserted into the feeding channel, and a sensor is arranged on one side of the feeding channel, wherein the top of the feeding bin is also covered with a top cover.

[0019] Furthermore, the anode rod adding mechanism also includes a material pushing device;

[0020] The ejecting device includes a fourth motor fixed on the machine platform through a bracket, a screw is fixed to the shaft end of the fourth motor, wherein the outer side of the screw is threadedly connected to a ejector rod, one end of the ejector rod is inserted into the feeding channel, and is used to push the anode rod at the end of the feeding channel into the anode clamping mechanism.

[0021] Furthermore, a cleaning component is also provided inside the reaction chamber;

[0022] The cleaning assembly includes a U-shaped rod rotated in the reaction chamber by a third motor. The reaction chamber includes a chamber body and a chamber door rotated on the opening side of the chamber body. One end of the U-shaped rod is detachably connected to the chamber door through a connecting assembly.

[0023] Furthermore, a collecting chamber is connected at the bottom of the chamber body, a push plate is driven to slide on the inner side of the collecting chamber by a linear module, a removal chamber is connected to the front side of the collecting chamber, a removal chamber door is covered at the opening of the removal chamber, a vacuum interface is provided on the removal chamber, and a collecting chamber door is provided between the removal chamber and the collecting chamber.

[0024] The utility model proposes a continuous preparation device for carbon nanomaterials, which has the beneficial effects that: in the utility model, by adopting a continuous anode rod supply and product collection method, all steps except adding rods and collecting products are controlled by a host computer, and carbon nanomaterials can be prepared continuously. In particular, the design of adjusting the anode advancement speed according to voltage feedback not only improves the repeatability of the arc preparation process of carbon nanomaterials and the stability of the products, but also saves manpower and improves production efficiency. In addition, the equipment can collect complete cloth-like or flocculent products deposited on the wall of the arc furnace chamber, as well as block or powder products scattered on the bottom of the chamber through physical scraping, and can be further sorted simply according to their morphology to obtain only high-quality cloth-like or flocculent products. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is the front view of the utility model;

[0026] Figure 2This is a schematic diagram of the cathode clamping mechanism structure of the utility model;

[0027] Figure 3 This is a schematic diagram of the charging bin structure of the utility model;

[0028] Figure 4 This is a schematic diagram of the structure of the anode clamping mechanism of the utility model;

[0029] Figure 5 This is a schematic diagram of the cleaning component structure of the utility model;

[0030] Figure 6 It is a schematic diagram of the structure of the collection cabin of the utility model.

[0031] In the figure: 1, machine; 2, reaction chamber; 21, chamber body; 22, chamber door; 3, cathode clamping mechanism; 31, fixing ring; 32, clamping claw; 33, locking sleeve; 34, conical cavity; 35, conductive column; 36, sleeve; 4, anode clamping mechanism; 41, fixing frame; 42, pressure rod; 43, raised part; 44, pull rod; 45, second motor; 46, screw; 5, cathode driving mechanism; 51, first motor; 52, driving rod; 53, threaded rod; 54, transmission component; 6, anode rod adding mechanism; 61, feeding bin; 611, storage area; 612, feeding channel; 613, vacuum hole; 62, driving part; 63, stop plate; 64, bin cover; 65, sensor; 66, top cover; 67, ejecting device; 671, fourth motor; 672, screw rod; 673, ejector rod; 7, cleaning component; 71, third motor; 72, U-shaped rod; 73, collection chamber; 74, linear module; 75, push plate; 76, removal chamber; 77, removal chamber door; 78, vacuum interface; 79, collection chamber door; 8, connecting component; 81, insertion rod; 82, positioning tube; 83, positioning glass beads. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0033] Reference Figure 1-6 An embodiment of the utility model discloses a continuous preparation device for carbon nanomaterials. Figure 1Specifically, the preparation device includes a machine 1 and a reaction chamber 2 placed on the machine 1, and a cathode clamping mechanism 3 and an anode clamping mechanism 4 are respectively arranged on both sides of the reaction chamber 2. Specifically, the machine 1 in this embodiment can be set as a metal frame, and wheels and feet are arranged below it for overall movement and fixation. Further, a raised interface is arranged at the rear side of the reaction chamber 2 for installing a vacuum valve and connecting a vacuum pump to ensure the formation and maintenance of a reaction atmosphere. In addition, the reaction chamber 2 has a water-cooled interlayer, which is connected to a water inlet and outlet, and is connected to an external chiller through the water inlet and outlet to realize a water-cooled cycle to realize water-cooling cooling after the reaction. This structure is a prior art and will not be described in detail here.

[0034] Reference Figure 1 , wherein a cathode driving mechanism 5 is also provided above the machine platform 1, and the cathode driving mechanism 5 is used to drive the cathode clamping mechanism 3 to move;

[0035] An anode rod feeding mechanism 6 for continuously feeding the anode clamping mechanism 4 is also provided on one side of the reaction chamber 2. The cathode clamping mechanism 3 and the anode clamping mechanism 4 are respectively connected to the negative electrode and the positive electrode of an external arc welding machine.

[0036] Reference Figure 2 In some embodiments, the cathode clamping mechanism 3 in the utility model includes a fixing ring 31, and a plurality of clamping claws 32 are provided on the end surface of the fixing ring 31. The cathode rod is inserted between the plurality of clamping claws 32. A locking sleeve 33 is threadedly connected to the outer side of the fixing ring 31. The interior of the locking sleeve 33 has a conical cavity 34 that abuts against the plurality of clamping claws 32. Preferably, in the present embodiment, the fixing ring 31 and the locking sleeve 33 are both made of copper, which facilitates the discharge reaction by virtue of its superior conductivity.

[0037] Reference Figure 2 On the basis of the above embodiment, a conductive column 35 is fixedly installed on the end surface of the fixing ring 31, and the conductive column 35 is connected to the negative electrode of the arc welding machine through a wire;

[0038] A sleeve 36 is fixedly installed on the side of the reaction chamber 2, and the conductive column 35 slides in the sleeve 36. Specifically, during operation, the cathode rod can be first inserted between the multiple clamps 32, and then the locking sleeve 33 is rotated. The resistance force of the conical cavity 34 forces the clamps 32 to clamp and fix the cathode column. During the clamping process, it is necessary to ensure that the end of the cathode column is in close contact with the conductive column 35 to improve the stability of conduction.

[0039] Reference Figure 1 , 2In addition, the cathode driving mechanism 5 described in the embodiment of the utility model includes a first motor 51 fixed to the machine table 1 through a bracket, and a driving rod 52 is rotatably connected inside the sleeve 36. The internal thread of the driving rod 52 is connected to a threaded rod 53, and the threaded rod 53 is fixed to the side of the conductive column 35. The first motor 51 and the driving rod 52 are transmitted through a transmission component 54. The transmission component 54 described in this embodiment is preferably configured as a belt and pulley transmission structure. Of course, in other embodiments, technicians in the relevant field can also use a sprocket chain transmission structure or a gear transmission structure to drive the above-mentioned driving rod 52 to rotate.

[0040] Furthermore, it should be pointed out in the above scheme that since the displacement of the cathode clamping mechanism 3 is achieved by using the driving rod 52 to drive the threaded rod 53 to move linearly, the circumferential position restriction of the threaded rod 53 needs to be considered in the present invention to ensure that the rotational movement of the driving rod 52 is converted into the linear drive of the threaded rod 53;

[0041] Preferably, in this embodiment, a resistance block can be set inside the sleeve 36, and a straight groove can be opened on the outer side of the threaded rod 53. The resistance block slides in the straight groove to achieve circumferential limitation of the threaded rod 53. This ensures that when the driving rod 52 rotates, it can drive the threaded rod 52 to produce linear motion, so that the position of the cathode rod can be adjusted during the reaction process.

[0042] Reference Figure 4 Furthermore, in some embodiments, the anode clamping mechanism 4 includes a fixing frame 41 fixed to the side of the reaction chamber 2, and a pressure rod 42 is movably inserted in the fixing frame 41, and the two pressure rods 42 cooperate with the top of the fixing frame 41 to clamp the anode rod;

[0043] Among them, two protrusions 43 are arranged at intervals on the end surface of the pressure rod 42, and a pull rod 44 is placed between the protrusions 43 of the two pressure rods 42. A second motor 45 is fixed to the bottom of the fixed frame 41, and a screw 46 connected to the pull rod 44 is fixed to the axial end of the second motor 45. The pressure rod 42 is connected to the positive pole of the arc welding machine through a wire.

[0044] In summary, when the anode rod needs to be clamped and fixed, the second motor 45 drives the pull rod 44 to move up and down, so as to drive the two pressure rods 42 to move up and down. It should be noted that the pressure rod 42 described in the embodiment of the utility model is an L-shaped structure. When the anode rod enters between the two pressure rods 42, the second motor 45 drives the pull rod 44 to move downward, and the bent parts of the two pressure rods 42 cooperate with the top of the fixing frame 41 to clamp and fix the anode rod.

[0045] Reference Figure 3 , further, the anode rod adding mechanism 6 in this embodiment includes a feeding bin 61 installed on the side of the anode clamping mechanism 4;

[0046] The interior of the feeding bin 61 has a storage area 611 and a feeding channel 612. The overall structure is wide at the top and narrow at the bottom, and can accommodate dozens or hundreds of rods. The length of the anode rod is 10-50 cm. The storage area 611 is connected to a vacuum hole 613. The vacuum hole 613 is a KF40 interface, which is used to connect a vacuum valve and a vacuum pump to remove the air introduced when adding rods. It should be noted that the tail end of the feeding channel 612 should penetrate to both sides of the feeding bin 61, so that the top material device 67 can be inserted and provide space for the anode rod to extend.

[0047] Among them, a stop plate 63 is driven to slide on the side of the feeding bin 61 by a driving member 62. The stop plate 63 can close the feeding channel 612, and can also adopt a method of resisting and fixing the anode rod to prevent it from falling. The driving member 62 described in this embodiment is preferably configured as a cylinder, and the movement of the above-mentioned stop plate 63 is driven by the extension and contraction of the cylinder. The purpose of such a design is to protrude outward to lift up other rods after each anode rod falls, so as to prevent the upper anode rod from being driven or falling when the anode rod is pushed forward.

[0048] Reference Figure 3 On the basis of the above-mentioned embodiment, in the utility model, a bin cover 64 is further inserted into the feeding channel 612. The bin cover 64 is opened and closed by manual side push, and is sealed with the storage area 611 and the feeding channel 612 by a rubber ring and vacuum grease. It is usually open and is closed only when the top cover 66 is opened to add rods. A sensor 65 is provided on one side of the feeding channel 612. The sensor 65 adopts photoelectric detection to determine whether the number of remaining anode rods is less than three. If so, an alarm is issued. Obviously, this scheme needs to be implemented in conjunction with a control unit, wherein the top of the feeding bin 61 is also covered with a top cover 66, which can be opened and closed manually, and is sealed with the storage area 611 by a rubber ring.

[0049] Reference Figure 1 On the basis of the above-mentioned embodiment, the anode rod feeding mechanism 6 in the utility model further includes a pushing device 67, and the pushing device 67 is used to push the anode rod in the feeding channel 612 outwards to be fed into the anode clamping mechanism 4 for clamping and fixing;

[0050] Specifically, the ejecting device 67 includes a fourth motor 671 fixed to the machine table 1 through a bracket, and a screw rod 672 is fixed to the axial end of the fourth motor 671, wherein the outer side of the screw rod 672 is threadedly connected to a ejector rod 673, and a nut seat can be arranged at the bottom of the ejector rod 673, which is threadedly connected to the screw rod 672, and one end of the ejector rod 673 is inserted into the feeding channel 612, so as to push the anode rod at the end of the feeding channel 612 into the anode clamping mechanism 4.

[0051] During the specific ejection, the fourth motor 671 rotates to drive the screw rod 672 to rotate. When the screw rod 672 rotates, it will drive the ejector rod 673 to rotate. The ejector rod 673 is inserted into the feeding channel 612, thereby ejecting the anode rod in the feeding channel 612. After the current anode rod is ejected, the above-mentioned cut-off plate 63 retracts and opens, thereby allowing the anode rod above to fall, waiting for the next ejection and feeding, thereby realizing continuous processing.

[0052] Reference Figure 5 In some embodiments, the present invention further provides a cleaning component 7 inside the reaction chamber 2;

[0053] The cleaning assembly 7 includes a U-shaped rod 72 that is rotated in the reaction chamber 2 by a third motor 71. The U-shaped rod 72 includes two short rods and a long rod. The length of the two short rods is 2 cm less than the inner radius of the cavity, and the long rod is 2 cm less than the depth of the cavity. In addition, the outer sides of the short rods and the long rods are both provided with openings, and brush bristles are clamped at the openings. Specifically, in some preferred embodiments, the size of the brush bristles is 3-5 cm in length and 1 cm in width, that is, in this embodiment, the brush is used to clean the carbon nanomaterials generated inside the reaction chamber 2 to avoid the problem that the carbon nanomaterials adhere to the inner wall of the reaction chamber 2 and are inconvenient to collect;

[0054] Further, the reaction chamber 2 includes a chamber body 21 and a chamber door 22 rotating on the opening side of the chamber body. Specifically, the entire outer cavity has a water-cooled interlayer. Preferably, the reaction chamber 2 in this embodiment is in the shape of a cylindrical structure, which can be made of 304 steel, wherein the size can be set to 50-80cm in diameter and 30-60cm in depth; a rubber ring is provided between the chamber body 21 and the chamber door 22 to maintain airtightness, and the chamber door 22 opens forward and to the left. Of course, an observation window can also be provided in the center of the front of the reaction chamber 2. The design of the observation window protrudes forward by about 10cm to prevent carbon ash from covering and blocking observation. The window is made of transparent quartz glass, with an eccentric shaft baffle inside to adjust the light output, and an additional slot is provided outside, on which a light-shielding quartz glass or organic glass is inserted, so that the human eye can directly observe the arc;

[0055] It should be noted that in this embodiment, one end of the U-shaped rod 72 is detachably connected to the warehouse door 22 through a connecting component 8. The purpose of this design is to unlock the connecting component 8 before the warehouse door 22 is opened to avoid the U-shaped rod 72 interfering with the opening and closing movement of the warehouse door 22.

[0056] Reference Figure 5 In some preferred embodiments, the connecting assembly 8 described in the embodiment of the utility model includes an insertion rod 81 inserted into the warehouse door 22, one end of the insertion rod 81 is inserted into the U-shaped rod 72, wherein a positioning tube 82 is also provided on the warehouse door 22, and a hole is opened on the positioning tube 82. The outer side of the insertion rod 81 is provided with a positioning glass bead 83 adapted to the hole, so that the locking positioning of the position of the insertion rod 81 can be achieved.

[0057] Reference Figure 6 On the basis of the above-mentioned embodiment, in the embodiment of the utility model, a collecting cabin 73 is further connected at the bottom of the chamber body 21. A push plate 75 is driven to slide on the inner side of the collecting cabin 73 by a linear module 74. The linear module 74 is a screw structure driven by a motor. A taking-out cabin 76 is connected to the front side of the collecting cabin 73. The taking-out cabin 76 is a square or cylindrical cabin structure protruding forward. A taking-out cabin door 77 is covered at the opening of the taking-out cabin 76. The taking-out cabin door 77 is opened manually and is sealed with the taking-out cabin 76 by a rubber ring. A vacuum interface 78 is also provided on the taking-out cabin 76. The vacuum interface 78 is a KF40 interface, which is used to connect a vacuum valve and a vacuum pump to remove the air introduced when taking out the sample.

[0058] A collecting chamber door 79 is also provided between the taking-out chamber 76 and the collecting chamber 73. The collecting chamber door 79 is opened and closed by manually pushing up and down, and is sealed between the product collecting chamber 73 and the taking-out chamber 76 by a rubber ring and vacuum grease. The collecting chamber door 79 is usually open and is closed only when the product taking-out chamber door is opened for sampling.

[0059] It should be noted that, in this embodiment, each of the above-mentioned electrical components can be connected to a host terminal to achieve automatic control.

[0060] During the specific operation, the top cover 66 is opened manually, the anode rod is loaded into the feeding bin 61, and the cathode rod is fixed on the cathode clamping mechanism 3, the reaction chamber 2 is closed manually, the U-shaped rod 72 is assembled through the connecting assembly 8, the removal hatch 77 is closed manually, and the bin cover 64 and the collection hatch 79 are opened;

[0061] Vacuum and inflate to the specified pressure, turn the U-shaped rod 72 to the vertical direction, pass the anode rod through the anode clamping mechanism 4, push it to the appropriate position, push the cathode rod to a distance of 5mm from the cathode, and turn on the arc power supply; push the anode rod forward until it contacts the cathode, at which time the resistance drops suddenly, pull the cathode apart by 5mm to form an arc, measure the current voltage and compare it with the set voltage, if the voltage is too large, speed up the anode advancement speed, otherwise reduce it to maintain the voltage and spacing unchanged, when the anode is consumed to 5cm, the stepper motor records the distance, cuts off the power, and completely pushes out the remaining section and drops it;

[0062] The cathode is retracted, the U-shaped rod 72 is rotated 3-5 times, the product is scraped into the groove below, the U-shaped rod 72 is rotated to the vertical direction, the top rod 673 is retracted to the bottom, the cut-off plate 63 is loosened, and the anode rod falls. Thereafter, the cut-off plate 63 is pushed out and clamped, and the anode is passed through the anode clamping mechanism 4 and pushed to the appropriate position; the cathode is pushed to a distance of 5mm from the cathode; the aforementioned arc consumption and product collection process are repeated.

[0063] In the above process, when the product needs to be taken out, the push plate 75 is pushed to the front end with the product, and the push plate 75 is retracted; the collection cabin door 79 is manually closed, and the take-out cabin door 77 is opened to take out the product; the take-out cabin door 77 is manually closed, and the vacuum interface 78 is evacuated and inflated to a specified pressure; the collection cabin door 79 is manually opened;

[0064] When the rod needs to be replenished: manually close the bin cover 64, open the top cover 66, put the anode rod in, manually close the top cover 66, evacuate through the vacuum hole 613, inflate to the specified pressure, and manually open the bin cover 64.

[0065] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for continuous preparation of carbon nanomaterials, characterized in that: It comprises a machine platform (1) and a reaction chamber (2) placed on the machine platform (1), wherein a cathode clamping mechanism (3) and an anode clamping mechanism (4) are respectively arranged on both sides of the reaction chamber (2); Wherein, a cathode driving mechanism (5) is also arranged above the machine platform (1), and the cathode driving mechanism (5) is used to drive the cathode clamping mechanism (3) to move; An anode rod feeding mechanism (6) for continuously feeding the anode clamping mechanism (4) is also provided on one side of the reaction chamber (2); the cathode clamping mechanism (3) and the anode clamping mechanism (4) are respectively connected to the negative electrode and the positive electrode of an external arc welding machine.

2. The device for continuous preparation of carbon nanomaterials according to claim 1, characterized in that: The cathode clamping mechanism (3) comprises a fixing ring (31), a plurality of clamping claws (32) are provided on the end surface of the fixing ring (31), the cathode rod is inserted between the plurality of clamping claws (32), a locking sleeve (33) is threadedly connected to the outer side of the fixing ring (31), and the locking sleeve (33) has a conical cavity (34) inside that abuts against the plurality of clamping claws (32).

3. The device for continuous preparation of carbon nanomaterials according to claim 2, characterized in that: A conductive column (35) is fixedly mounted on the end surface of the fixing ring (31), and the conductive column (35) is connected to the negative electrode of the arc welding machine via a wire; A sleeve (36) is fixedly mounted on the side of the reaction chamber (2), and the conductive column (35) slides in the sleeve (36).

4. The device for continuous preparation of carbon nanomaterials according to claim 3, characterized in that: The cathode driving mechanism (5) comprises a first motor (51) fixed to the machine platform (1) via a bracket, a driving rod (52) rotatably connected inside the sleeve (36), a threaded rod (53) being internally threadedly connected to the driving rod (52), the threaded rod (53) being fixed to the side surface of the conductive column (35), wherein the first motor (51) and the driving rod (52) are transmitted via a transmission component (54).

5. The device for continuous preparation of carbon nanomaterials according to claim 1, characterized in that: The anode clamping mechanism (4) comprises a fixing frame (41) fixed to the side of the reaction chamber (2), a pressure rod (42) being movably inserted in the fixing frame (41), and the two pressure rods (42) cooperate with the top of the fixing frame (41) to clamp the anode rod; Two protrusions (43) are arranged at intervals on the end surface of the pressure rod (42), a pull rod (44) is placed between the protrusions (43) of the two pressure rods (42), a second motor (45) is fixed to the bottom of the fixed frame (41), a screw (46) connected to the pull rod (44) is fixed to the shaft end of the second motor (45), and the pressure rod (42) is connected to the positive electrode of the arc welding machine through a wire.

6. The device for continuous preparation of carbon nanomaterials according to claim 1, characterized in that: The anode rod feeding mechanism (6) comprises a feeding bin (61) installed on the side of the anode clamping mechanism (4); The interior of the feeding bin (61) is provided with a material storage area (611) and a material feeding channel (612); the material storage area (611) is connected to a vacuum hole (613); a stop plate (63) is also driven to slide on the side of the feeding bin (61) by a driving member (62); the stop plate (63) is capable of closing the material feeding channel (612).

7. The device for continuous preparation of carbon nanomaterials according to claim 6, characterized in that: A bin cover (64) is also inserted into the feeding channel (612), and a sensor (65) is provided on one side of the feeding channel (612), wherein the top of the feeding bin (61) is also covered with a top cover (66).

8. The device for continuous preparation of carbon nanomaterials according to claim 6, characterized in that: The anode rod adding mechanism (6) further comprises a material pushing device (67); The ejection device (67) comprises a fourth motor (671) fixed to the machine platform (1) via a bracket, a screw rod (672) being fixed to the shaft end of the fourth motor (671), wherein the outer side of the screw rod (672) is threadedly connected to an ejection rod (673), and one end of the ejection rod (673) is inserted into the feeding channel (612) for pushing the anode rod at the end of the feeding channel (612) into the anode clamping mechanism (4).

9. The device for continuous preparation of carbon nanomaterials according to claim 1, characterized in that: A cleaning component (7) is also provided inside the reaction chamber (2); The cleaning assembly (7) comprises a U-shaped rod (72) which is rotated in the reaction chamber (2) by a third motor (71); the reaction chamber (2) comprises a chamber body (21) and a chamber door (22) which is rotated on an opening side of the chamber body; one end of the U-shaped rod (72) is detachably connected to the chamber door (22) via a connecting assembly (8).

10. The device for continuous preparation of carbon nanomaterials according to claim 9, characterized in that: A collecting chamber (73) is also connected to the bottom of the chamber body (21), a push plate (75) is driven to slide on the inner side of the collecting chamber (73) by a linear module (74), a removal chamber (76) is connected to the front side of the collecting chamber (73), a removal chamber door (77) is covered at the opening of the removal chamber (76), a vacuum interface (78) is also provided on the removal chamber (76), and a collecting chamber door (79) is also provided between the removal chamber (76) and the collecting chamber (73).

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