Continuous phenolic resin carbon material production device

Abstract

The application discloses a phenolic resin carbon material continuous preparation device and relates to the technical field of phenolic resin preparation. The phenolic resin carbon material continuous preparation device comprises a double-shaft shearing assembly and a vortex airflow screening assembly. The vortex airflow screening assembly comprises a vortex mechanism, a fixed cylinder mechanism and a movable cylinder mechanism. The fixed cylinder mechanism comprises an outer cylinder. A second material pipe is fixedly connected to the lower side of the outer cylinder in communication. An inner cylinder is fixedly connected to the lower wall of the outer cylinder in penetration. A sieve hole is arranged in the section of the inner cylinder inserted into the outer cylinder. A first material pipe is fixedly connected to the lower side of the inner cylinder in communication on the outer side of the outer cylinder. The movable cylinder mechanism comprises a movable cylinder penetrating through the upper wall of the outer cylinder. A threaded groove is arranged on the movable cylinder in screw connection with the upper wall of the outer cylinder. The movable cylinder and the inner cylinder are coaxial. A handle is fixedly connected to the outer side of the end of the movable cylinder extending out of the outer cylinder. The phenolic resin carbon material continuous preparation device is used for ball milling the broken carbon fiber particles according to particle size to different degrees, and the carbon fiber is treated in pertinence, so that the treatment fineness is improved.

Description

Technical Field

[0001] This invention relates to the field of phenolic resin preparation technology, specifically to a continuous preparation apparatus for phenolic resin carbon materials. Background Technology

[0002] Phenolic resin is originally a colorless or yellowish-brown transparent substance, existing in granular or powder form. It is resistant to weak acids and weak alkalis, but decomposes in strong acids and corrodes in strong alkalis. It is insoluble in water but soluble in organic solvents such as acetone and alcohol. It is obtained by the condensation polymerization of phenolic resin or its derivatives.

[0003] Viscose-based carbon fiber is made from natural cellulose (wood, hemp, cotton, etc.) through pre-oxidation and carbonization processes. It possesses characteristics such as low density, low thermal conductivity, and high purity, and is widely used in aerospace thermal protection, military composite materials, and other fields. With the rapid development of my country's aerospace and new energy equipment industries, a large amount of waste fiber is generated. How to transform waste carbon fiber into high-value-added products has become key to realizing a circular economy in the carbon fiber industry. Using recycled carbon fiber as raw material to produce porous carbon bricks is less costly, and compared to the raw materials of traditional porous carbon bricks, recycled carbon fiber has lower density, higher strength, and greater corrosion resistance.

[0004] Patent CN118125859B discloses a method for preparing lightweight, high-strength, porous carbon bricks with adjustable porosity using recycled carbon fibers, comprising the following steps: Step 1: Shearing, crushing, and sieving waste viscose-based carbon fiber felt to obtain recycled carbon fiber powder; Step 2: Using a weakly acidic polyethyleneimine aqueous solution as the ball milling medium, ball milling the recycled carbon fiber powder from Step 1 to obtain a recycled carbon fiber powder slurry with an aspect ratio adjustable, the aspect ratio being adjustable within the range of 18 to 120 micrometers; Step 3: Adding phenolic resin powder to the recycled carbon fiber slurry adjusted in Step 2, stirring thoroughly, and then drying to obtain phenolic resin-coated paste particles; Step 4: Cold molding the paste particles obtained in Step 3 to obtain a green body; Step 5: Carbonizing the green body obtained in Step 4 under an inert atmosphere to obtain a lightweight, high-strength, porous carbon brick with adjustable porosity using recycled carbon fibers as raw material.

[0005] In the above steps, waste viscose-based carbon fiber felt is sheared and crushed, and recycled carbon fiber powder with uniform length diameter is screened and ball-milled. However, the remaining carbon fiber powder that does not meet the uniform length diameter needs to be processed additionally and is prone to clogging the screen, affecting the continuous preparation of the device. Therefore, there is an urgent need for a continuous preparation device for phenolic resin carbon materials to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a continuous preparation apparatus for phenolic resin carbon materials to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a continuous preparation device for phenolic resin carbon materials, comprising a biaxial shearing assembly for crushing and recycling fibers and a vortex airflow screening assembly for sorting carbon fiber powder, wherein the vortex airflow screening assembly is inclined and perpendicular to the biaxial shearing assembly, and the vortex airflow screening assembly comprises a vortex mechanism, a fixed cylinder mechanism and a movable cylinder mechanism.

[0008] The fixed cylinder mechanism includes an outer cylinder, a second material pipe for feeding is fixedly connected to the lower side of the outer cylinder, a coaxial inner cylinder is fixedly connected through the lower wall of the outer cylinder, one end face of the inner cylinder is attached to the outer cylinder, a section of the inner cylinder inserted into the outer cylinder is provided with a sieve hole, and a first material pipe located outside the outer cylinder is fixedly connected to the lower side of the inner cylinder.

[0009] The piston mechanism includes a piston that penetrates the upper wall of the outer cylinder. The piston has a threaded groove that is screwed onto the upper wall of the outer cylinder. The piston and the inner cylinder are coaxial. A handle is fixedly connected to the outer side of the end of the piston that extends out of the outer cylinder.

[0010] Below the vortex airflow screening assembly is a preparation mechanism, which includes a phenolic resin mixing chamber. A phenolic resin feed pipe for injecting phenolic resin is fixedly connected to one side of the upper wall of the phenolic resin mixing chamber. Three ball mills are fixedly connected at equal intervals to the other side of the upper wall of the phenolic resin mixing chamber. Each ball mill has a feeding pipe fixedly connected to its upper end. The upper end of the first feeding pipe is fixedly connected to a first feed pipe, the upper end of the second feeding pipe is fixedly connected to a second feed pipe, and the upper end of the third feeding pipe is fixedly connected to a rotating cylinder.

[0011] As a preferred embodiment of the present invention, a protective sleeve is fixedly nested on the first material tube;

[0012] The inner cylinder is inserted into the outer cylinder. T-shaped grooves are opened on the inner sides of both ends of the section. A brush ring is slidably embedded in each groove. The two brush rings are fixed together to a cleaning brush that fits against the inner wall of the inner cylinder.

[0013] The vortex mechanism includes a receiving shell that is fixedly connected to the inner cylinder. The upper wall of the receiving shell is provided with a material port. A first column shaft is inserted through the end wall of the receiving shell. A third bevel gear is fixedly sleeved on one end of the first column shaft. A baffle is fixedly connected to the other end of the first column shaft. An impeller that fits the baffle is fixedly sleeved on the other end of the first column shaft.

[0014] A connecting rod is fixedly connected between the baffle and the cleaning brush.

[0015] A vibration mechanism is vertically arranged below the vortex mechanism. The vibration mechanism includes a second column shaft with a movable shaft connecting to the housing. The lower ends of the second column shaft are respectively fixed with corresponding protective sleeves of striking components.

[0016] Each of the striking components includes a turntable that is fixedly fitted with a second column shaft. Striking bars are equidistantly and evenly connected to the outer side of the turntable via spring shafts, and the striking bars of the two striking components are staggered.

[0017] As a preferred embodiment of the present invention, the outlet end of the phenolic resin mixing chamber is connected to a cold molding chamber for producing carbon fiber brick green bodies, and the outlet end of the cold molding chamber is connected to a carbonization chamber for firing carbon fiber bricks.

[0018] As a preferred embodiment of the present invention, the dual-axis shearing assembly includes a housing mechanism, a first power shaft mechanism, and a second power shaft mechanism.

[0019] The outer shell mechanism includes an inclined protective shell, and a bottom column is fixedly supported at the lower end of the protective shell;

[0020] The upper side of the protective shell is fixedly fitted with a connecting shell;

[0021] The inner side of the protective shell is fixedly connected to a first connecting ring and a second connecting ring respectively;

[0022] The upper end of the protective shell is fixedly connected to a shearing cylinder, and a partition plate for separation is fixedly connected between the protective shell and the shearing cylinder. The outlet end of the shearing cylinder is connected to the material port.

[0023] The first power shaft mechanism includes a motor fixedly connected to the lower wall of the protective shell, the output end of the motor being fixedly connected to a column, and the column and the second column shaft being sleeved together with a belt that penetrates the protective shell;

[0024] The end of the machine column is fixedly connected to a first power shaft that moves through a first connecting ring via a bearing. The first power shaft passes through a second connecting ring and a partition. The end of the first power shaft extends into the shearing cylinder and is fixedly fitted with a first rotary cutter. A first bevel gear that meshes with a third bevel gear is fixedly fitted on the first power shaft.

[0025] The first rotary cutter includes a cutter ring that is fixedly sleeved on the first power shaft. Blades are fixedly connected to the sides of the cutter ring at equal intervals. The lower surface of the blade is provided with an inclined surface corresponding to the shearing direction. Guide grooves corresponding to the rotation direction are provided at equal intervals on the inclined surface. The tail end of the guide groove passes through the blade and is recessed.

[0026] The second power shaft mechanism includes a shaft sleeve adapted to be connected to the first power shaft. The shaft sleeve is movably inserted through a second connecting ring via a bearing. A second bevel gear that meshes with a third bevel gear is fixedly sleeved on the shaft sleeve. A partition is inserted through the shaft sleeve. The end of the shaft sleeve extends into the shearing cylinder and is movably sleeved with a second rotary cutter having the same structure as the first rotary cutter. The second rotary cutter is located below and opposite to the first rotary cutter.

[0027] The second rotary cutter is fixedly connected with a connector at equal and even intervals. A cylinder is fixedly connected between the connector and the second bevel gear. A protective sleeve fixed to the second bevel gear is attached to the outside of the cylinder. The cylinder passes through the protective sleeve, and the protective sleeve passes through the partition.

[0028] Compared with the prior art, the beneficial effects of the present invention are:

[0029] (1) A continuous preparation device for phenolic resin carbon materials, wherein the first rotary cutter on the first power shaft and the second rotary cutter on the shaft cylinder rotate in opposite directions, and together with the inclined surface of the first rotary cutter, a shearing force field is formed in the shearing cylinder to improve the efficiency of destroying carbon fibers.

[0030] (2) The continuous preparation device for phenolic resin carbon materials effectively guides the crushed carbon fibers from the biaxial shearing assembly into the vortex airflow screening assembly by the negative pressure generated by the rotation of the impeller at the outlet end of the shearing cylinder corresponding to the material port, thereby reducing the escape of the crushed carbon fibers.

[0031] (3) The continuous preparation device for phenolic resin carbon materials, due to the gradual reduction of the cross-sectional area of ​​the guide channel, a local negative pressure is formed, forming a channel similar to a Venturi tube. The broken carbon fibers are sucked into the guide channel under the negative pressure and flow along the guide channel, improving the guidance of the broken carbon fibers.

[0032] (4) A continuous preparation device for phenolic resin carbon materials, by setting up a cylinder, the distance between the first rotary cutter and the second rotary cutter can be adjusted by adjusting the cylinder, thereby adjusting the cutting size and improving the adjustment performance.

[0033] (5) A continuous preparation device for phenolic resin carbon materials is introduced into a second ball mill through a second feed pipe for medium-precision ball milling. The crushed carbon fiber particles are ball milled to different degrees according to particle size, which improves the targeted treatment of carbon fiber and improves the processing precision.

[0034] (6) A continuous preparation device for phenolic resin carbon materials can adjust the depth of the inner cylinder by rotating it outward through the threaded groove on the cylinder, thereby changing the standard for capturing small carbon fiber particles by the cylinder mechanism and further improving the adjustability of the preparation.

[0035] (7) The continuous preparation device for phenolic resin carbon materials adapts the threaded groove on the cylinder to the vortex airflow blown out by the impeller, so that the threaded groove forms an airflow channel, strengthens the vortex airflow on its outside, and helps to enhance the airflow's screening ability for broken carbon fiber particles.

[0036] (8) The continuous preparation device for phenolic resin carbon materials causes the inner cylinder to vibrate, reducing the adhesion between carbon fibers and reducing the clogging of the screen holes of the inner cylinder by carbon fibers, thereby reducing the maintenance rate.

[0037] (9) A continuous preparation device for phenolic resin carbon materials, in which a cleaning brush periodically cleans the sieve holes of the inner cylinder, and in conjunction with the vortex airflow in the inner cylinder, improves the self-cleaning ability, reduces the frequency of clogging of the sieve holes in the inner cylinder, and forms continuous production to improve production efficiency. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the structure of the present invention;

[0039] Figure 2 This is a schematic diagram of the docking of the biaxial shear assembly of the present invention;

[0040] Figure 3 This is a schematic diagram of the preparation mechanism of the present invention;

[0041] Figure 4 This is a schematic diagram of the internal connection of the biaxial shearing assembly of the present invention;

[0042] Figure 5 This is a schematic diagram of the outer shell mechanism of the present invention;

[0043] Figure 6 This is a schematic diagram of the first power shaft mechanism of the present invention;

[0044] Figure 7 This is a schematic diagram of the first rotary cutting blade of the present invention;

[0045] Figure 8 This is a schematic diagram of the second power shaft mechanism of the present invention;

[0046] Figure 9 This is a schematic diagram of the first rotary cutting blade of the present invention being connected;

[0047] Figure 10 This is a schematic diagram of the vortex mechanism of the present invention;

[0048] Figure 11 This is a schematic diagram of the vibration mechanism of the present invention;

[0049] Figure 12 This is a schematic diagram of the cylinder fixing mechanism of the present invention;

[0050] Figure 13 For the present invention Figure 12 Enlarged view of point A;

[0051] Figure 14 This is a schematic diagram of the piston mechanism of the present invention.

[0052] In the diagram: 1. Outer shell mechanism; 101. Protective shell; 102. Base column; 103. First connecting ring; 104. Second connecting ring; 105. Partition plate; 106. Shearing cylinder; 2. First power shaft mechanism; 201. Motor; 202. Machine column; 203. First power shaft; 204. First bevel gear; 3. First rotary cutter; 301. Blade ring; 302. Blade; 303. Guide groove; 4. Second power shaft mechanism; 401. Shaft cylinder; 402. Second bevel gear; 403. Second rotary cutter; 404. Connecting seat; 405. Cylinder; 406. Protective cylinder; 5. Scroll mechanism; 501. Connecting shell; 502. Material inlet; 503. First column shaft; 504. Third bevel gear; 505, baffle plate; 506, impeller; 6, vibration mechanism; 601, second column shaft; 602, belt; 603, turntable; 604, striking bar; 7, fixed cylinder mechanism; 701, outer cylinder; 702, second feed pipe; 703, inner cylinder; 704, first feed pipe; 705, sheath; 706, groove; 707, brush ring; 708, cleaning brush; 709, connecting rod; 8, piston mechanism; 801, piston; 802, threaded groove; 803, throttle; 9, preparation mechanism; 901, phenolic resin mixing chamber; 902, phenolic resin feed pipe; 903, ball mill; 904, machine tube; 905, cold molding chamber; 906, carbonization chamber. Detailed Implementation

[0053] 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, and 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.

[0054] Example: Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 12 , Figure 14 A continuous preparation device for phenolic resin carbon materials includes a biaxial shearing assembly for crushing and recycling fibers and a vortex airflow screening assembly for sorting carbon fiber powder. The vortex airflow screening assembly is inclined and perpendicular to the biaxial shearing assembly. The vortex airflow screening assembly includes a vortex mechanism 5, a fixed cylinder mechanism 7 and a movable cylinder mechanism 8.

[0055] The fixed cylinder mechanism 7 includes an outer cylinder 701, a second material pipe 702 for feeding is fixedly connected to the lower side of the outer cylinder 701, a coaxial inner cylinder 703 is fixedly connected through the lower wall of the outer cylinder 701, one end face of the inner cylinder 703 is attached to the outer cylinder 701, a section of the inner cylinder 703 inserted into the outer cylinder 701 is provided with a screen hole, and a first material pipe 704 located outside the outer cylinder 701 is fixedly connected to the lower side of the inner cylinder 703.

[0056] The piston mechanism 8 includes a piston 801 that penetrates the upper wall of the outer cylinder 701. The radius of the piston 801 is smaller than the radius of the inner cylinder 703. A threaded groove 802 is provided on the piston 801 that is screwed to the upper wall of the outer cylinder 701. The piston 801 and the inner cylinder 703 are coaxial. A handle 803 is fixedly connected to the outer side of the end of the piston 801 that extends out of the outer cylinder 701.

[0057] Below the vortex airflow screening assembly is a preparation mechanism 9, which includes a phenolic resin mixing chamber 901. A phenolic resin feed pipe 902 for injecting phenolic resin is fixedly connected to one side of the upper wall of the phenolic resin mixing chamber 901. Three ball mills 903 are fixedly and evenly connected at equal intervals to the other side of the upper wall of the phenolic resin mixing chamber 901. The grinding parameters of the three ball mills 903 are different. The upper end of each ball mill 903 is fixedly connected to a feed pipe 904. The upper end of the first feed pipe 904 is fixedly connected to the first feed pipe 704. The upper end of the second feed pipe 904 is fixedly connected to the second feed pipe 702. The upper end of the third feed pipe 904 is fixedly connected to the cylinder 801. The middle section of the third feed pipe 904 is made of flexible material.

[0058] Please see Figure 4 , Figure 10 , Figure 11 , Figure 12 , Figure 13 A sheath 705 is fixedly nested on the first feed tube 704;

[0059] The inner cylinder 703 is inserted into the outer cylinder 701. T-shaped grooves 706 are respectively opened on the inner sides of both ends. A brush ring 707 is slidably embedded in each groove 706. The two brush rings 707 are fixed together with a cleaning brush 708 that fits against the inner wall of the inner cylinder 703.

[0060] The vortex mechanism 5 includes a receiving shell 501 that is fixedly connected to the inner cylinder 703. A material port 502 is opened through the upper wall of the receiving shell 501. A first column shaft 503 is inserted through the end wall of the receiving shell 501. A third bevel gear 504 is fixedly sleeved on one end of the first column shaft 503. A baffle 505 is fixedly connected to the other end of the first column shaft 503. An impeller 506 that fits the baffle 505 is fixedly sleeved on the other end of the first column shaft 503.

[0061] A connecting rod 709 is fixedly connected between the baffle 505 and the cleaning brush 708.

[0062] A vibration mechanism 6 is vertically arranged below the vortex mechanism 5. The vibration mechanism 6 includes a second column shaft 601 connected to the movable shaft housing 501. The lower ends of the second column shaft 601 are respectively fixedly fitted with striking components corresponding to the protective sleeves 705.

[0063] Each striking assembly includes a turntable 603 that is fixedly sleeved on the second column shaft 601. The outer side of the turntable 603 is equidistantly connected to striking bars 604 via spring shafts, and the striking bars 604 of the two striking assemblies are staggered.

[0064] Please see Figure 3 The outlet end of the phenolic resin mixing chamber 901 is connected to the cold molding chamber 905, which is used to produce carbon fiber brick green bodies, and the outlet end of the cold molding chamber 905 is connected to the carbonization chamber 906, which is used to fire carbon fiber bricks.

[0065] Please see Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 The dual-axis shearing assembly includes a housing mechanism 1, a first power shaft mechanism 2, and a second power shaft mechanism 4.

[0066] The outer casing mechanism 1 includes an inclined protective shell 101, and a bottom column 102 is fixedly supported at the lower end of the protective shell 101.

[0067] The housing 501 is fixedly installed on the upper side of the housing 101;

[0068] The first connecting ring 103 and the second connecting ring 104 are fixedly connected inside the protective shell 101;

[0069] The upper end of the protective shell 101 is fixedly connected to the shearing cylinder 106, and a partition plate 105 for separation is fixedly connected between the protective shell 101 and the shearing cylinder 106. The outlet end of the shearing cylinder 106 is connected to the material port 502.

[0070] The first power shaft mechanism 2 includes a motor 201 fixedly connected to the lower wall of the protective shell 101. The output end of the motor 201 is fixedly connected to a column 202. The column 202 and the second column shaft 601 are together sleeved with a belt 602 that passes through the protective shell 101.

[0071] The end of the machine column 202 is fixedly connected to a first power shaft 203 that moves through a first connecting ring 103 via a bearing. The first power shaft 203 passes through a second connecting ring 104 and a partition 105. The end of the first power shaft 203 extends into the shearing cylinder 106 and is fixedly fitted with a first rotary cutter 3. A first bevel gear 204 that meshes with a third bevel gear 504 is fixedly fitted on the first power shaft 203.

[0072] The first rotary cutter 3 includes a cutter ring 301 that is fixedly sleeved on the first power shaft 203. Blades 302 are fixedly connected to the sides of the cutter ring 301 at equal intervals. The lower surface of the blade 302 is provided with an inclined surface corresponding to the shearing direction. Guide grooves 303 corresponding to the rotation direction are provided at equal intervals on the inclined surface. The tail end of the guide groove 303 passes through the blade 302 and is recessed.

[0073] The second power shaft mechanism 4 includes a shaft cylinder 401 adapted to be connected to the first power shaft 203. The shaft cylinder 401 is movably inserted through the second connecting ring 104 via a bearing. A second bevel gear 402 that meshes with the third bevel gear 504 is fixedly sleeved on the shaft cylinder 401. The shaft cylinder 401 is inserted through a partition plate 105. The end of the shaft cylinder 401 extends into the shearing cylinder 106 and is movably sleeved with a second rotary cutter 403 that has the same structure as the first rotary cutter 3. The second rotary cutter 403 is located below and opposite to the first rotary cutter 3.

[0074] A receiving seat 404 is fixedly connected to the second rotary cutter 403 at equal and even intervals. A cylinder 405 is fixedly connected between the receiving seat 404 and the second bevel gear 402. A protective sleeve 406 is fixedly connected to the outer side of the cylinder 405 and is attached to the second bevel gear 402. The cylinder 405 passes through the protective sleeve 406, and the protective sleeve 406 passes through the partition plate 105.

[0075] The working principle of this invention is as follows:

[0076] After the motor 201 drives the first bevel gear 204 to rotate, the third bevel gear 504 meshes with the first bevel gear 204 and the second bevel gear 402 respectively, thereby causing the first rotary cutter 3 on the first power shaft 203 and the second rotary cutter 403 on the shaft cylinder 401 to rotate in opposite directions. In conjunction with the inclined surface of the first rotary cutter 3, a shearing force field is formed in the shearing cylinder 106, which improves the efficiency of destroying carbon fibers.

[0077] The lower surface of the blade 302 has an inclined surface corresponding to the shearing direction. Therefore, during the shearing process of the blade 302, the broken carbon fiber can be pressed down. Similarly, the second rotary cutter 403 presses down the carbon fiber during the cutting process. Through the outlet end of the shearing cylinder 106 corresponding to the feed port 502, and the negative pressure formed by the rotation of the impeller 506, the broken carbon fiber is effectively guided from the biaxial shearing assembly into the vortex airflow screening assembly, reducing the escape of the broken carbon fiber.

[0078] By opening a guide groove 303 on the inclined surface of the blade 302, the guide groove 303 corresponds to the rotation direction, and its tail end passes through the blade 302 and then shrinks inward. When the blade 302 rotates at high speed, it drives the air around it to flow, forming a high-speed airflow at the entrance of the guide groove 303. As the cross-sectional area of ​​the guide groove 303 gradually decreases, a local negative pressure is formed, forming a channel similar to a Venturi tube. The crushed carbon fiber is drawn into the guide groove 303 under the action of negative pressure and flows along the guide groove 303, improving the guidance of the crushed carbon fiber.

[0079] By adjusting the cylinder 405, the distance between the first rotary cutter 3 and the second rotary cutter 403 can be adjusted, thereby adjusting the cutting size and improving the adjustment performance.

[0080] The crushed carbon fibers are further guided by the impeller 506 and enter the inclined vortex airflow screening assembly from the feed port 502. The vortex airflow generated by the impeller 506 in the inner cylinder 703 classifies the particle size of the crushed carbon fibers. Small carbon fibers are carried by the airflow into the piston cylinder 801 and enter the third ball mill 903 through the third tube 904 for low-precision ball milling. Large and medium-sized carbon fiber particles are located between the piston cylinder 801 and the inner cylinder 703. Large carbon fiber particles are separated by the screen holes of the inner cylinder 703 and slide into the first ball mill 903 through the first feed pipe 704 for high-precision ball milling. Medium-sized carbon fiber particles enter the outer cylinder 701 through the screen holes of the inner cylinder 703 and are introduced into the second ball mill 903 through the second feed pipe 702 for medium-precision ball milling. The crushed carbon fiber particles are ball milled to different degrees according to particle size, which improves the targeted processing of carbon fibers and improves the processing fineness.

[0081] The threaded groove 802 on the piston 801 allows the external rotation of the handle 803 to adjust the depth of the piston 801 inserted into the inner cylinder 703, thereby changing the standard for the piston mechanism 8 to capture small carbon fiber particles and further improving the adjustability of the preparation.

[0082] The threaded groove 802 on the piston cylinder 801 is adapted to the vortex airflow blown out by the impeller 506, so that the threaded groove 802 forms an airflow channel, strengthens the vortex of the vortex airflow on its outside, and helps to enhance the airflow's screening ability for broken carbon fiber particles.

[0083] With the vibration mechanism 6, the second column shaft 601 is connected to the machine column 202 via the belt 602 and rotates synchronously. During the rotation of the striking bar 604 on the turntable 603, it strikes the sheath 705 on the first material tube 704, thereby causing the inner cylinder 703 to vibrate, reducing the adhesion between carbon fibers, reducing the clogging of the screen holes of the inner cylinder 703 by carbon fibers, and thus reducing the maintenance rate.

[0084] The cleaning brush 708 and the baffle 505 are linked by the connecting rod 709, so that the cleaning brush 708 periodically cleans the screen holes of the inner cylinder 703. Combined with the vortex airflow in the inner cylinder 703, the self-cleaning ability is improved, the clogging frequency of the screen holes of the inner cylinder 703 is reduced, and continuous production is formed to improve production efficiency.

[0085] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A continuous preparation apparatus for phenolic resin carbon materials, comprising a biaxial shearing assembly for crushing and recycling fibers and a vortex airflow screening assembly for sorting carbon fiber powder, characterized in that: The vortex airflow screening component is inclined and perpendicular to the biaxial shearing component. The vortex airflow screening component includes a vortex mechanism (5), a fixed cylinder mechanism (7), and a movable cylinder mechanism (8). The fixed cylinder mechanism (7) includes an outer cylinder (701), a second material pipe (702) for feeding is fixedly connected to the lower side of the outer cylinder (701), a coaxial inner cylinder (703) is fixedly connected through the lower wall of the outer cylinder (701), one end face of the inner cylinder (703) is attached to the outer cylinder (701), a section of the inner cylinder (703) inserted into the outer cylinder (701) is provided with a sieve hole, and a first material pipe (704) located outside the outer cylinder (701) is fixedly connected to the lower side of the inner cylinder (703). The piston mechanism (8) includes a piston (801) that penetrates the upper wall of the outer cylinder (701). The piston (801) has a threaded groove (802) that is screwed onto the upper wall of the outer cylinder (701). The piston (801) and the inner cylinder (703) are coaxial. A throttle (803) is fixedly connected to the outer side of one end of the piston (801) that extends out of the outer cylinder (701). Below the vortex airflow screening assembly is a preparation mechanism (9), which includes a phenolic resin mixing chamber (901). A phenolic resin feed pipe (902) for injecting phenolic resin is fixedly connected to one side of the upper wall of the phenolic resin mixing chamber (901). Three ball mills (903) are fixedly connected at equal intervals to the other side of the upper wall of the phenolic resin mixing chamber (901). Each ball mill (903) has a feed pipe (904) fixedly connected to its upper end. The upper end of the first feed pipe (904) is fixedly connected to the first feed pipe (704), the upper end of the second feed pipe (904) is fixedly connected to the second feed pipe (702), and the upper end of the third feed pipe (904) is fixedly connected to the cylinder (801).

2. The continuous preparation apparatus for phenolic resin carbon materials according to claim 1, characterized in that: A sheath (705) is fixedly nested on the first material tube (704); The inner cylinder (703) is inserted into the outer cylinder (701) and has T-shaped grooves (706) on the inner sides of both ends. Each groove (706) is slidably fitted with a brush ring (707), and the two brush rings (707) are fixed together with a cleaning brush (708) that fits against the inner wall of the inner cylinder (703).

3. The continuous preparation apparatus for phenolic resin carbon materials according to claim 2, characterized in that: The vortex mechanism (5) includes a receiving shell (501) that is fixedly connected to the inner cylinder (703). The upper wall of the receiving shell (501) is provided with a material port (502). The end wall of the receiving shell (501) is inserted through a first column shaft (503). One end of the first column shaft (503) is fixedly sleeved with a third bevel gear (504). The other end of the first column shaft (503) is fixedly connected with a baffle (505). The other end of the first column shaft (503) is fixedly sleeved with an impeller (506) that fits against the baffle (505). A connecting rod (709) is fixedly connected between the baffle (505) and the cleaning brush (708).

4. The continuous preparation apparatus for phenolic resin carbon materials according to claim 3, characterized in that: A vibration mechanism (6) is vertically arranged below the vortex mechanism (5). The vibration mechanism (6) includes a second column shaft (601) connected to the movable shaft housing (501). The lower ends of the second column shaft (601) are respectively fitted with striking components with corresponding protective sleeves (705). Each of the striking components includes a turntable (603) that is fixedly sleeved on a second column shaft (601). The outer side of the turntable (603) is equidistantly and evenly connected to striking bars (604) via spring shafts. The striking bars (604) of the two striking components are staggered.

5. The continuous preparation apparatus for phenolic resin carbon materials according to claim 1, characterized in that: The outlet end of the phenolic resin mixing chamber (901) is equipped with a cold molding chamber (905) for producing carbon fiber brick green bodies, and the outlet end of the cold molding chamber (905) is equipped with a carbonization chamber (906) for firing carbon fiber bricks.

6. The continuous preparation apparatus for phenolic resin carbon materials according to claim 4, characterized in that: The dual-axis shearing assembly includes a housing mechanism (1), a first power shaft mechanism (2), and a second power shaft mechanism (4). The outer shell mechanism (1) includes an inclined protective shell (101), and a bottom column (102) is fixedly supported at the lower end of the protective shell (101). The upper side of the protective shell (101) is fixedly fitted with a connecting shell (501). The inner side of the protective shell (101) is fixedly connected to a first connecting ring (103) and a second connecting ring (104). The upper end of the protective shell (101) is fixedly connected to the shearing cylinder (106), and a partition plate (105) for separation is fixedly connected between the protective shell (101) and the shearing cylinder (106). The outlet end of the shearing cylinder (106) is connected to the material port (502).

7. The continuous preparation apparatus for phenolic resin carbon materials according to claim 6, characterized in that: The first power shaft mechanism (2) includes a motor (201) fixedly connected to the lower wall of the protective shell (101), and the output end of the motor (201) is fixedly connected to a machine column (202). The machine column (202) and the second column shaft (601) are together sleeved with a belt (602) that passes through the protective shell (101). The end of the machine column (202) is fixedly connected to a first power shaft (203) that is movably inserted through a first connecting ring (103) via a bearing. The first power shaft (203) is inserted through a second connecting ring (104) and a partition plate (105). The end of the first power shaft (203) extends into a shearing cylinder (106) and is fixedly fitted with a first rotary cutter (3). A first bevel gear (204) that meshes with a third bevel gear (504) is fixedly fitted on the first power shaft (203). The first rotary cutter (3) includes a cutter ring (301) fixedly sleeved on the first power shaft (203). Blades (302) are fixedly connected to the sides of the cutter ring (301) at equal intervals. The lower surface of the blade (302) is provided with an inclined surface corresponding to the shearing direction. Guide grooves (303) corresponding to the rotation direction are provided at equal intervals on the inclined surface. The tail end of the guide groove (303) passes through the blade (302) and is recessed.

8. The continuous preparation apparatus for phenolic resin carbon materials according to claim 7, characterized in that: The second power shaft mechanism (4) includes a shaft sleeve (401) adapted to be connected to the first power shaft (203). The shaft sleeve (401) is movably inserted through a second connecting ring (104) via a bearing. A second bevel gear (402) that meshes with a third bevel gear (504) is fixedly sleeved on the shaft sleeve (401). A partition plate (105) is inserted through the shaft sleeve (401). The end of the shaft sleeve (401) extends into a shearing cylinder (106) and is movably sleeved with a second rotary cutter (403) having the same structure as the first rotary cutter (3). The second rotary cutter (403) is located below and opposite to the first rotary cutter (3). A receiving seat (404) is fixedly connected at equal intervals on the second rotary cutter (403). A cylinder (405) is fixedly connected between the receiving seat (404) and the second bevel gear (402). A protective sleeve (406) is fixedly attached to the outer side of the cylinder (405) and fixed to the second bevel gear (402). The cylinder (405) passes through the protective sleeve (406), and the protective sleeve (406) passes through the partition (105).

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