Ultrafine carbon fiber pulverizing device and pulverizing method

Abstract

The present invention relates to the field of energy-saving household appliances manufacturing, and in particular to a superfine carbon fiber pulverizing device and pulverizing method. It includes a pulverizing barrel, a pulverizing assembly, a superfine carbon fiber placement cabin, an electrode plate, an airflow regulating assembly and an air separation box. The pulverizing assembly is located on the barrel cover; the top of the superfine carbon fiber placement cabin is open and opposite to the pulverizing end, and the bottom is connected to the collecting chamber through a connecting pipe; the electrode plates with opposite electrical properties are respectively arranged on both sides of the periphery of the pulverizing chamber. The airflow regulating assembly is located in the connecting pipe. On the one hand, the present invention provides positive and negative electrode plates that rotate around the superfine carbon fiber placement cabin, and on the other hand, provides an airflow regulating assembly, so that the superfine carbon fibers in the superfine carbon fiber placement cabin are sometimes ordered and sometimes disrupted. In the process of alternating between the disrupted and ordered states, the superfine carbon fibers cooperate with the lifting and rotating of the pulverizing end of the pulverizing assembly to achieve efficient and controllable pulverization of the superfine carbon fibers, so as to improve its application effect in the manufacture of energy-saving household appliances.

Description

Technical Field

[0001] The invention relates to the field of energy-saving household appliance manufacturing, and in particular to a superfine carbon fiber pulverizing device and a pulverizing method. Background Art

[0002] Ultrafine carbon fiber usually refers to carbon fiber with a diameter of less than 5μm. Compared with thick diameter carbon fiber, ultrafine carbon fiber is superior in strength, modulus, conductivity and other properties. Ultrafine carbon fiber has a wide range of application value after crushing, especially in the field of energy-saving household appliances manufacturing. This application is mainly reflected in its excellent physical and chemical properties, which help to improve the energy efficiency and performance of electrical appliances. The following are some specific application methods:

[0003] Improve energy efficiency: Ultrafine carbon fiber can be used as a reinforcing material for the internal structure of electrical appliances due to its high strength and low density. For example, in refrigeration equipment such as refrigerators and air conditioners, ultrafine carbon fiber reinforced materials can be used to make lighter and stronger condensers or evaporators, thereby improving heat exchange efficiency and reducing energy consumption.

[0004] Improve thermal insulation performance: Ultrafine carbon fiber has a large specific surface area, so it has better thermal insulation performance. When manufacturing heat-insulating home appliances such as refrigerators and rice cookers, ultrafine carbon fiber composite materials can be used as insulation layers to reduce energy loss and improve energy efficiency.

[0005] Improve durability and reliability: Ultrafine carbon fiber has excellent corrosion and high temperature resistance, so it can be used to manufacture components in electrical appliances that need to withstand high temperatures or chemical corrosion. This helps to improve the durability and reliability of electrical appliances, reduce the frequency of maintenance and replacement, and indirectly reduce energy consumption.

[0006] Intelligent control: By combining ultrafine carbon fiber with intelligent control technology, dynamic regulation of electrical energy consumption can be achieved. For example, in air conditioners, the indoor temperature and humidity can be monitored in real time through an intelligent control system, and the heat exchange efficiency of ultrafine carbon fiber composite materials can be automatically adjusted as needed to achieve more precise energy efficiency control.

[0007] A Chinese patent with authorization announcement number CN112619807B discloses a carbon fiber crushing device, which includes a feeding device and a crushing device connected by a pipeline. The crushing device includes a crushing chamber, a magnetic field generating component, a blowing component, a separable support component and a cutting component. The blowing component is arranged at the top of the crushing chamber and blows high-pressure gas to the cutting component. The discharge end of the feeding device is located between the separable support component and the blowing component. The separable support component is arranged at the bottom of the crushing chamber. The magnetic field generating component is fixed to the crushing chamber for applying a magnetic field to the carbon fibers on the separable support component to change the arrangement structure of the carbon fibers. The separable support component can perform opening and closing movements.

[0008] The above-mentioned carbon fiber crushing equipment uses wind power to blow the carbon fiber to the blade for cutting, and completes the cutting at one time. The number and angle of cutting are fixed. Therefore, the size of the cut carbon fiber is limited by the blade spacing and is also affected by the direction and strength of the wind. It cannot guarantee the uniformity and controllability of the carbon fiber cutting. The diameter of conventional carbon fiber is usually between 5-10μm, while the diameter of ultrafine carbon fiber is between 1-3μm, or even smaller. If ultrafine carbon fiber is to be crushed, the crushing effect is required to be higher. Summary of the invention

[0009] In view of the problems existing in the background technology, a superfine carbon fiber pulverizing device and pulverizing method are proposed. On the one hand, positive and negative electrode plates rotating around the superfine carbon fiber placement chamber are arranged, and on the other hand, an airflow adjustment component is arranged, so that the superfine carbon fibers in the superfine carbon fiber placement chamber are sometimes ordered and sometimes disrupted. In the process of alternating the state of disorder-order, the superfine carbon fibers are lifted and rotated in coordination with the pulverizing end of the pulverizing component to achieve efficient and controllable pulverization of the superfine carbon fibers, so as to improve its application effect in the manufacture of energy-saving household appliances.

[0010] The present invention provides a superfine carbon fiber crushing device, comprising:

[0011] A crushing cylinder, the interior of which is divided into an upper crushing chamber and a lower collecting chamber by a partition, and a cylinder cover is movably arranged above the crushing chamber;

[0012] The crushing assembly is located on the cylinder cover, and the crushing end acts on the ultra-fine carbon fiber by moving up and down and rotating at the origin;

[0013] The ultra-fine carbon fiber placement cabin has an open top opposite to the crushing end, and the bottom is connected to the collection chamber through a connecting pipe;

[0014] Electrode plates, with opposite electrical properties, are respectively arranged on both sides of the periphery of the crushing chamber, and rotate synchronously around the ultrafine carbon fiber placement chamber, and then cooperate with external electric field adjustment equipment to generate a changing electric field to induce the ultrafine carbon fibers in the ultrafine carbon fiber placement chamber to repeatedly move / rearrange in an orderly manner;

[0015] The airflow regulating component is located in the connecting pipe, and the opening and closing of the connecting pipe is controlled by lifting and lowering the gas regulating end, and the ultra-fine carbon fibers are dispersed and guided by the gas in and out of the gas regulating end;

[0016] And an air separation box is located at the bottom of the pulverizing cylinder, the feeding end is connected with the collecting chamber, and the discharging end is provided with a plurality of discharging pipes for graded discharging.

[0017] Preferably, the crushing end of the crushing assembly is a crushing disk that can be raised and lowered and rotated; the crushing disk is opposite to the hatch of the ultrafine carbon fiber placement cabin, a grinding groove is arranged at the rotation center, and a circle of crushing knives is arranged on the periphery.

[0018] Preferably, an electric field generating cavity is left between the ultrafine carbon fiber placement cabin and the crushing cylinder; two groups of electrode plates are provided, one positive and one negative, the two groups of electrode plates are arc-shaped, with concave surfaces facing each other, and are driven by a driving member to rotate synchronously around the ultrafine carbon fiber placement cabin in the electric field generating cavity.

[0019] Preferably, a stepped connecting port connected to a connecting pipe is provided at the bottom of the ultrafine carbon fiber placement cabin; the airflow regulating assembly is an air pipe that moves up and down in the connecting pipe; an air pump is provided at the bottom end of the air pipe, an air outlet seat is provided at the top end, and a filter cover is provided at the periphery; the filter cover surrounds the connecting port; an air hole 1 is provided on the air pipe, and an air hole 2 is provided on the side wall of the air outlet seat.

[0020] Preferably, the air outlet seat is consistent in size with the connecting port, and a grinding head is arranged on the top; the grinding head is opposite to the grinding groove and is a spherical structure with one convex and one concave.

[0021] Preferably, a cooling assembly is also included; the cooling assembly includes a coolant circulation pipe located on the wall of the ultra-fine carbon fiber placement cabin, a coolant storage tank, and a circulation pump connecting the two.

[0022] Preferably, an inclined material guide rack is provided in the collecting chamber; a negative pressure pump and a vibrator are provided on the material guide rack, and a valve connected to the feed end of the air separation box is also provided at the lower end.

[0023] The present invention further proposes a method for crushing ultrafine carbon fibers, which is crushed using the above-mentioned ultrafine carbon fiber crushing device, and the steps are as follows:

[0024] S1. Pour dry, impurity-free ultrafine carbon fiber into the ultrafine carbon fiber storage chamber and cover the chamber cover;

[0025] S2, turning on the power supply, adjusting the voltage and current, so that the electric field reaches the required strength, and at the same time, the positive electrode plate and the negative electrode plate rotate relatively and synchronously around the ultrafine carbon fiber placement cabin, so that the ultrafine carbon fibers are repeatedly moved / rearranged in an orderly manner;

[0026] S3, the crushing end of the crushing component moves up and down and the origin rotates to repeatedly crush the dynamically ordered ultrafine carbon fibers;

[0027] S4. During the crushing process, the gas regulating end of the air flow regulating component rises regularly according to the set program, so that the connecting pipe is opened; the gas regulating inlet and outlet gas disperses and guides the ultra-fine carbon fibers;

[0028] S5, the ultrafine carbon fibers are repeatedly crushed to a set time in the process of alternating the disordered-ordered state, and then the ultrafine carbon fibers are transferred to the collection chamber;

[0029] S6. Finally, after being air-selected in an air-selection box, the materials are graded and collected from different discharge pipes;

[0030] S7. The ultrafine carbon fiber that does not meet the standards is returned to the ultrafine carbon fiber storage cabin again.

[0031] Compared with the prior art, the present invention has the following beneficial technical effects: on the one hand, positive and negative electrode plates are arranged to rotate around the ultrafine carbon fiber placement cabin, and the electric field changes are used to induce the ultrafine carbon fibers to move / rearrange in an orderly manner; on the other hand, an air flow regulating component is arranged to disperse and guide the ultrafine carbon fibers by lifting and lowering the gas regulating end and inletting and outletting the air, so that the ultrafine carbon fibers in the ultrafine carbon fiber placement cabin are sometimes orderly and sometimes disrupted. In the process of alternating between the disrupted and ordered states, the ultrafine carbon fibers are lifted and rotated in coordination with the crushing end of the crushing component to achieve efficient and controllable crushing of the ultrafine carbon fibers. Then, the ultrafine carbon fibers are screened once through the filter cover and screened twice through the air separation box to obtain qualified ultrafine carbon fiber powder. The ultrafine carbon fiber crushing method is simple to operate, has low noise, high crushing efficiency, and guaranteed product quality, so as to improve its application effect in the manufacture of energy-saving household appliances. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic structural diagram of the ultrafine carbon fiber crushing device of the present invention;

[0033] Figure 2 A cross-sectional view of a device for crushing ultrafine carbon fibers in the present invention;

[0034] Figure 3 It is a secondary cross-sectional view of the ultrafine carbon fiber crushing device of the present invention;

[0035] Figure 4 It is a top view of the pulverizing tube in the present invention;

[0036] Figure 5 This is a disassembled diagram of the cylinder cover structure of the present invention;

[0037] Figure 6 A bottom view of the pulverizing disk of the present invention;

[0038] Figure 7 for Figure 3 Schematic diagram at A in the middle;

[0039] Figure 8 It is a schematic diagram of the combined structure of the electrode plate and the driving member in the present invention;

[0040] Fig. 9 is a structural schematic diagram of the airflow adjustment component in the present invention;

[0041] Fig.10 It is a schematic diagram of the structure of the cooling assembly in the present invention.

[0042] Figure numerals: 1. crushing cylinder; 2. cylinder cover; 201. sealing cover; 202. handle; 3. crushing assembly; 301. cylinder one; 302. motor one; 303. crushing disc; 304. grinding groove; 305. crushing knife; 4. electrode plate; 5. ultrafine carbon fiber placement cabin; 501. connecting port; 6. connecting pipe; 7. partition; 8. air flow adjustment assembly; 801. grinding head; 802. air outlet seat; 803. filter cover; 804. air pipe; 805. air pump; 806. cylinder two; 9. material guide rack; 10. air source; 11. air separation box; 12. discharge pipe; 13. driving part; 1301. annular plate; 1302. inner gear ring; 1303. gear; 14. cooling assembly; 1401. coolant circulation pipe; 1402. coolant storage box; 1403. circulation pump. DETAILED DESCRIPTION Embodiment 1

[0043] like Figure 1-Figure 4 As shown, a superfine carbon fiber pulverizing device proposed by the present invention includes a pulverizing barrel 1, a pulverizing assembly 3, a superfine carbon fiber placement cabin 5, an electrode plate 4, an airflow regulating assembly 8 and an air separation box 11. The partition 7 divides the interior of the pulverizing barrel 1 into an upper pulverizing chamber and a lower collecting chamber, and the barrel cover 2 is movably arranged above the pulverizing chamber. The pulverizing assembly 3 is located on the barrel cover 2, and the pulverizing end acts on the superfine carbon fiber by moving up and down and rotating at the origin. The top of the superfine carbon fiber placement cabin 5 is open and opposite to the pulverizing end, and the bottom is connected to the collecting chamber through a connecting pipe 6. The electrode plates 4 with opposite electrical properties are respectively arranged on both sides of the periphery of the pulverizing chamber, rotate synchronously around the superfine carbon fiber placement cabin 5, and then cooperate with the external electric field adjustment device to generate a changing electric field to induce the superfine carbon fibers in the superfine carbon fiber placement cabin 5 to repeatedly move / rearrange in an orderly manner. The airflow regulating assembly 8 is located in the connecting pipe 6, and the opening and closing of the connecting pipe 6 is controlled by the lifting and lowering of the gas regulating end, and the superfine carbon fibers are dispersed and guided by the gas entering and exiting the gas regulating end. The air separation box 11 is located at the bottom of the pulverizing cylinder 1, with an air source 10 arranged on one side, a feeding end being connected with the collecting chamber, and a discharging pipe 12 for discharging materials in multiple groups in grades arranged at the discharging end.

[0044] like Figure 5-Figure 6 As shown, the crushing end of the crushing assembly 3 is a crushing disc 303 that can be raised and lowered and rotated; the crushing disc 303 is opposite to the hatch of the ultra-fine carbon fiber placement cabin 5, a grinding groove 304 is set at the rotation center, and a circle of crushing knives 305 are set on the periphery.

[0045] It should be further explained that a cylinder 301 is provided on the cylinder cover 2 to drive the crushing disc 303 to move up and down in the ultra-fine carbon fiber placement chamber 5, and a motor 302 is provided on the telescopic rod of the cylinder 301 to drive the crushing disc 303 to rotate in the ultra-fine carbon fiber placement chamber 5. The lifting and rotating of the crushing disc 303 can speed up the crushing of the ultra-fine carbon fiber.

[0046] It should be further explained that the size of the crushing disc 303 and the ultra-fine carbon fiber placement chamber 5 are consistent, and the two are in sliding contact during the crushing process.

[0047] It should be further explained that the crushing blades 305 are radially arranged around the grinding groove 304 and are detachable. The specific installation method can be a snap-on connection. By setting a snap-on slot on the crushing disc 303, the crushing blades 305 can be selectively installed to meet different crushing requirements.

[0048] It should be further explained that a handle 202 is provided on the top of the barrel cover 2, and a sealing cover 201 is provided on the bottom to match the hatch of the ultra-fine carbon fiber placement cabin 5, so as to form a sealed crushing environment to further reduce noise and pollution.

[0049] like Figure 4 As shown, an annular electric field generating cavity is left between the ultrafine carbon fiber placement cabin 5 and the crushing cylinder 1; the electrode plates 4 are arranged in two groups, one positive and one negative, the two groups of electrode plates 4 are arc-shaped, with concave surfaces facing each other, and are driven by the driving member 13 to rotate synchronously around the ultrafine carbon fiber placement cabin 5 in the electric field generating cavity.

[0050] like Figure 7-Figure 8 As shown, the driving member 13 includes an annular plate 1301 rotatably arranged in the electric field generating chamber; the positive electrode plate 4 and the negative electrode plate 4 are respectively located on both sides of the annular plate 1301; the annular plate 1301 is coaxially sleeved with the ultrafine carbon fiber placement cabin 5, and an inner gear ring 1302 is arranged at the bottom; a motor 2 and a gear 1303 connected to the main shaft of the motor 2 are arranged on the outer periphery of the connecting pipe 6; the gear 1303 is rotatably connected to the bottom of the ultrafine carbon fiber placement cabin 5, and is meshed with the inner gear ring 1302.

[0051] After the positive electrode plate 4 and the negative electrode plate 4 are energized, a certain electric field is formed between the two. After the electric field is applied, the carbon fiber powder will be arranged and ordered to a certain extent in the electric field due to the action of the electric field force. When the driving member 13 acts, the positive electrode plate 4 and the negative electrode plate 4 rotate synchronously, and the electric field between them will also change accordingly, which will have a certain impact on the ultrafine carbon fibers in the electric field. Since the direction and intensity of the electric field will change with the rotation of the positive and negative electrode plates 4, it will cause the ultrafine carbon fibers to move repeatedly or rearrange. In the process of orderly change of the ultrafine carbon fibers, combined with the lifting and rotation of the crushing disk 303, the dynamic ordered ultrafine carbon fibers are crushed to avoid the problem of uneven crushing.

[0052] like Figure 7 , Fig. 9As shown, a stepped connecting port 501 connected to a connecting pipe 6 is arranged at the bottom of the ultrafine carbon fiber placement cabin 5; the airflow regulating end of the airflow regulating assembly 8 is an air pipe 804 that moves up and down in the connecting pipe 6; an air pump 805 is arranged at the bottom end of the air pipe 804, an air outlet seat 802 is arranged at the top end, and a filter cover 803 is arranged at the periphery.

[0053] It should be further explained that the filter cover 803 surrounds the connecting port 501 , and only allows ultra-fine carbon fibers that meet the size requirements to pass through and enter the connecting pipe 6 .

[0054] It needs to be further explained that, air hole 1 is set on the air pipe 804, and air hole 2 is set on the side wall of the air outlet seat 802; air is discharged through air hole 1 to disperse the ultrafine carbon fiber to achieve the purpose of uniform mixing, and air is discharged through air hole 2 to clean the filter cover 803 to maintain smooth filtering.

[0055] It should be further explained that a second cylinder 806 is provided in the collecting chamber to drive the air pipe 804 to move up and down; the gas regulating end of the air flow regulating component 8 can rise and fall regularly according to the set program; when rising, the ultrafine carbon fibers are dispersed and guided, and the filter cover 803 is cleaned, and after descending, the ultrafine carbon fibers can be crushed again.

[0056] It should be further explained that the air outlet seat 802 is consistent with the size of the connecting port 501, and a grinding head 801 is arranged on the top; the grinding head 801 is opposite to the grinding groove 304, and is a spherical structure with one convex and one concave.

[0057] When the crushing end moves up and down and rotates, the grinding head 801 and the grinding groove 304 can grind and crush the ultra-fine carbon fibers between them, thereby increasing the crushing efficiency.

[0058] like Fig.10 As shown, it needs to be further explained that it also includes a cooling component 14; the cooling component 14 includes a coolant circulation pipe 1401 located on the wall of the ultra-fine carbon fiber placement cabin 5, a coolant storage box 1402 and a circulation pump 1403 connecting the two.

[0059] It should be further explained that the coolant is liquid nitrogen; the coolant storage box 1402 and the circulation pump 1403 are located on the cylinder cover 2; the coolant circulation pipe 1401 is coiled and penetrates the wall of the ultra-fine carbon fiber placement cabin 5.

[0060] During the crushing process, the ultrafine carbon fiber is treated at low temperature by a coolant, which makes it brittle on the one hand, and then undergoes multi-stage high-speed rotary cutting and airflow selection to obtain carbon fiber with smaller particle size. On the other hand, it avoids the accumulation of heat energy during the crushing process, which may lead to changes in the performance of the ultrafine carbon fiber.

[0061] like Figure 2-Figure 3As shown, an inclined material guide rack 9 is arranged in the collecting chamber; a negative pressure pump and a vibrator are arranged on the material guide rack 9, and a valve connected to the feeding end of the air separation box 11 is also arranged at the lower end; through the operation of the negative pressure pump, a negative pressure environment is formed in the collecting chamber, which accelerates the ultrafine carbon fiber to pass through the connecting pipe 6; through the operation of the vibrator, the movement of the ultrafine carbon fiber is accelerated. Embodiment 2

[0062] This embodiment provides a method for crushing ultrafine carbon fibers, which is crushed using the ultrafine carbon fiber crushing device described in the first embodiment, and the steps are as follows:

[0063] S1, pouring dry, impurity-free ultrafine carbon fiber into the ultrafine carbon fiber storage chamber 5, and covering it with the chamber cover 2;

[0064] S2, turn on the power supply, adjust the voltage and current, so that the electric field reaches the required strength, and at the same time, the driving member 13 drives the annular plate 1301 to rotate, driving the positive electrode plate 4 and the negative electrode plate 4 to rotate relatively and synchronously around the ultrafine carbon fiber placement chamber 5, so that the ultrafine carbon fibers are repeatedly moved / rearranged in an orderly manner;

[0065] S3, the cylinder 1 301 drives the crushing disk 303 to move up and down in the ultra-fine carbon fiber placement chamber 5, the motor 1 302 drives the crushing disk 303 to rotate in the ultra-fine carbon fiber placement chamber 5, and the crushing knife 305 starts to cut the dynamically ordered ultra-fine carbon fibers, while the grinding head 801 and the grinding groove 304 grind the ultra-fine carbon fibers between them;

[0066] S4, during the crushing process, the gas regulating end of the air flow regulating component 8 rises and falls according to the set program; when rising, the connecting pipe 6 is opened, the outlet gas disperses and guides the ultrafine carbon fiber, and cleans the filter cover 803, and after falling, the connecting pipe 6 is closed, and the ultrafine carbon fiber can be crushed again; in addition, the ultrafine carbon fiber is treated at low temperature by a coolant;

[0067] S6, the ultrafine carbon fibers are repeatedly crushed to a set time in the process of alternating between the disordered and ordered states, and then the ultrafine carbon fibers are transferred to the bottom of the collection chamber through the filter cover 803 and the guide rack 9;

[0068] S7, finally, after being air-selected by the air-selection box 11, the materials are collected in different grades from different discharge pipes 12;

[0069] S8. The ultrafine carbon fiber that does not meet the standards is returned to the ultrafine carbon fiber placement cabin 5 again.

[0070] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A superfine carbon fiber pulverizing device, characterized in that: include: A pulverizing cylinder (1), wherein the interior of the pulverizing cylinder (1) is divided into an upper pulverizing chamber and a lower collecting chamber by a partition (7), and a cylinder cover (2) is movably arranged above the pulverizing chamber; A crushing assembly (3) is located on the cylinder cover (2), and the crushing end acts on the ultra-fine carbon fibers by moving up and down and rotating at the origin; The ultra-fine carbon fiber placement chamber (5) has an open top opposite to the crushing end, and a bottom connected to the collection chamber via a connecting pipe (6); Electrode plates (4), where the electrode plates (4) with opposite electrical properties are respectively arranged on both sides of the outer periphery of the pulverizing chamber, and rotate synchronously around the ultrafine carbon fiber placement chamber (5), and cooperate with external electric field adjustment equipment to generate a changing electric field to induce the ultrafine carbon fibers in the ultrafine carbon fiber placement chamber (5) to repeatedly move / rearrange in an orderly manner; An airflow regulating component (8) is located in the connecting pipe (6), and controls the opening and closing of the connecting pipe (6) by lifting and lowering the gas regulating end, so that the ultra-fine carbon fibers are dispersed and guided by the gas entering and exiting the gas regulating end; and a wind separation box (11), which is located at the bottom of the pulverizing cylinder (1), the feed end of which is connected to the collecting chamber, and the discharge end of which is provided with a plurality of discharge pipes (12) for graded discharge; The crushing end of the crushing assembly (3) is a crushing disc (303) that can be raised and lowered and rotated; the crushing disc (303) is opposite to the hatch of the ultra-fine carbon fiber placement cabin (5), a grinding groove (304) is arranged at the rotation center, and a circle of crushing knives (305) is arranged on the periphery; The bottom of the ultra-fine carbon fiber storage cabin (5) is provided with a stepped communication port (501) connected to the communication pipe (6); the gas regulation end of the air flow regulation component (8) is an air pipe (804) that moves up and down in the communication pipe (6); an air pump (805) is provided at the bottom of the air pipe (804), an air outlet seat (802) is provided at the top, and a filter cover (803) is provided on the periphery; the filter cover (803) surrounds the communication port (501); an air hole 1 is provided on the air pipe (804), and an air hole 2 is provided on the side wall of the air outlet seat (802); The air outlet seat (802) is consistent in size with the communication port (501), and a grinding head (801) is arranged on the top; the grinding head (801) is opposite to the grinding groove (304), and is a spherical structure with one convex and one concave.

2. The ultrafine carbon fiber pulverizing device according to claim 1, characterized in that: An electric field generating cavity is left between the ultrafine carbon fiber placement chamber (5) and the crushing cylinder (1); two groups of electrode plates (4) are provided, one positive and one negative; the two groups of electrode plates (4) are arc-shaped, with concave surfaces facing each other, and are driven by a driving member (13) to rotate synchronously around the ultrafine carbon fiber placement chamber (5) in the electric field generating cavity.

3. The ultrafine carbon fiber pulverizing device according to claim 1, characterized in that: It also includes a cooling assembly (14); the cooling assembly (14) includes a coolant circulation pipe (1401) located on the wall of the ultra-fine carbon fiber placement cabin (5), a coolant storage box (1402), and a circulation pump (1403) connecting the two.

4. The ultrafine carbon fiber pulverizing device according to claim 1, characterized in that: An inclined material guide frame (9) is arranged in the collecting chamber; a negative pressure pump and a vibrator are arranged on the material guide frame (9), and a valve communicating with the feeding end of the air separation box (11) is also arranged at the lower end.

5. A method for pulverizing ultrafine carbon fibers, characterized in that: The ultrafine carbon fiber pulverizing device according to claim 1 is used for pulverizing, and the steps are as follows: S1, pouring dry, impurity-free ultrafine carbon fiber into the ultrafine carbon fiber storage chamber (5), and covering it with a chamber cover (2); S2, turning on the power supply, adjusting the voltage and current so that the electric field reaches the required strength, and at the same time, the positive electrode plate (4) and the negative electrode plate (4) rotate relative to and synchronously around the ultrafine carbon fiber placement chamber (5), so that the ultrafine carbon fibers are repeatedly moved / rearranged in an orderly manner; S3, the crushing end of the crushing assembly (3) moves up and down and rotates at the origin to repeatedly crush the dynamically ordered ultrafine carbon fibers; S4, during the pulverization process, the gas regulating end of the gas regulating component (8) rises in a timed manner according to a set program, so that the connecting pipe (6) opens; the inlet and outlet gas of the gas regulating end disperses and guides the ultrafine carbon fibers; S5, the ultrafine carbon fibers are repeatedly crushed to a set time in the process of alternating the disordered-ordered state, and then the ultrafine carbon fibers are transferred to the collection chamber; S6, finally, after being air-selected by an air-selection box (11), the materials are collected in different grades from different discharge pipes (12); S7. The ultra-fine carbon fiber that does not meet the standards is returned to the ultra-fine carbon fiber storage cabin (5).

Images