CN115109305A - A carbon fiber composite rod microwave continuous processing and recycling integrated device and method - Google Patents

Abstract

The invention discloses a microwave continuous treatment and recovery integrated device and method for a carbon fiber composite rod, and relates to the technical field of pyrolysis recovery of carbon fiber composite materials. A driving motor of the material conveying device drives a conveying track to convey the carbon fiber composite rod; the two sides of a pyrolysis device shell of the microwave pyrolysis device are provided with air sealing devices, and a first U-shaped groove track and a microwave generator are arranged in the shell; the stripper is rotatably arranged at the top of the stripping device box body of the glass fiber stripping device; a second U-shaped groove track and a microwave generator are arranged in an oxidation device shell of the microwave oxidation device, and an air inlet at the top of the shell is connected with an oxygen supply device. Under the effect of a driving motor, the carbon fiber composite rod is conveyed into the microwave pyrolysis device for pyrolysis through the conveying rail and the U-shaped groove rail, the carbon fiber composite rod is conveyed into the stripper for physical stripping, enters the microwave oxidation device for oxidation, and the obtained carbon fiber is conveyed into the automatic winding device for winding and collection, so that automatic continuous feeding and recovery of the carbon fiber composite rod are realized.

Description

A carbon fiber composite rod microwave continuous processing and recycling integrated device and method

technical field

The invention relates to the technical field of pyrolysis recycling of carbon fiber composite materials, in particular to an integrated device for continuous microwave treatment and recycling of carbon fiber composite rods and a method thereof.

Background technique

Carbon fiber reinforced resin composites are widely used in automobiles, aerospace and other fields due to their light weight, high strength, high temperature resistance, strong corrosion resistance and excellent thermodynamic properties. The sucker rod is the slender rod of the oil well, the upper end is connected with the polished rod, and the lower end sucker pump plays the role of transmitting power. The carbon fiber reinforced resin composite material is used to prepare the sucker rod. A series of advantages such as light weight, corrosion resistance, high oil recovery rate and low energy consumption have attracted the attention of experts and scholars in the field of oil production, and have carried out technical research and development and have been widely used.

The carbon fiber reinforced resin composite sucker rod plays a significant role in the field of oil production, especially in three aspects: oil increase in deep oil, energy saving and consumption reduction, anti-corrosion and life extension. As a result, the demand continues to increase, and with it, a large number of discarded sucker rods are produced. The current conventional treatment method is burning or landfilling. Direct combustion will produce a large amount of toxic and harmful gases, causing environmental pollution; a large amount of landfill treatment will lead to waste of resources, especially for high-cost carbon fiber reinforced resin composite materials, which is a kind of It is a huge waste of resources, so it is very necessary to recycle the carbon fiber reinforced resin composite sucker rod. The recovery of carbon fiber is generally divided into two steps, which is first cracked and decomposed in an oxygen-free environment, and then oxidized to recover carbon fiber. Because the sucker rod is a slender rod with a layer of glass fiber on its surface, the glass fiber needs to be peeled off after pyrolysis, and problems such as automatic feeding of the equipment must be considered. Therefore, it is urgent to develop a carbon fiber for continuous automatic feeding of materials. Reinforced resin composite rod microwave rapid pyrolysis oxidation recovery integrated device and method.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an integrated device for continuous processing and recycling of carbon fiber composite rods and a method thereof, so as to solve the problem of inconvenient pyrolysis recovery of the existing carbon fiber composite rods.

In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions: an integrated device for continuous processing and recycling of carbon fiber composite rods, which is characterized in that it includes a material conveying device, a microwave pyrolysis device, a glass fiber stripping device, a microwave An oxidation device and a material recovery device, the material conveying device includes a conveying track and a first driving motor, and the first driving motor drives the conveying track to transport the carbon fiber composite rod; the microwave pyrolysis device includes a pyrolysis device shell, and the pyrolysis device shell has two parts. Gas sealing devices are installed on both sides, a first U-shaped groove track and a microwave generator are arranged in the shell of the pyrolysis device, the exhaust port on the top of the shell of the pyrolysis device is connected with the gas collection device, and the bottom of the shell of the pyrolysis device is provided with a gas collecting device. The pyrolysis oil collection device; the glass fiber stripping device includes a stripping device box, the top of the stripping device box is rotated and provided with a stripper, and the stripper is connected with the second driving motor through a transmission device; the microwave oxidation device includes an oxidation device shell, and the oxidation device shell The body is provided with a second U-shaped groove track and a microwave generator, the air inlet on the top of the oxidation device shell is connected to the oxygen supply device, the material recovery device is provided with an automatic winding device; the outlet of the transmission track is connected to the shell of the pyrolysis device The air sealing device feed port on one side of the body is connected, and the air sealing device outlet is sequentially connected with the first U-shaped groove track, the air sealing device on the other side, the stripper, the second U-shaped groove track, and the automatic winding device. .

A further technical solution is that the inner side of the stripper is a cone-shaped pipe, a blade is arranged on the cone-shaped pipe, a waste outlet is arranged beside the blade, and a transmission gear is arranged on the outer side wall of the stripper, and the transmission gear is driven by the second drive motor. Both ends of the cone-shaped pipe are rotatably arranged on the top of the stripping device box, the stripping device box is provided with a cone-shaped pipe giving way, and the conveying track is connected with the cone-shaped pipe.

A further technical solution is that the first U-shaped groove track includes a track bottom plate, a plurality of U-shaped grooves are arranged in parallel on the track bottom plate, the bottom of the U-shaped groove is provided with a pyrolysis oil outlet, and the side wall of the U-shaped groove is provided with orbital balls.

A further technical solution is that the gas sealing device is provided with a material channel, the material channel is sequentially sleeved with a rotating moving ring, a static ring, and a spring, and the gas inlet at the top of the gas sealing device is connected to the nitrogen supply device.

A further technical solution is that the gas collecting device includes a condenser, the liquid outlet at the bottom of the condenser is connected with the liquid container, and the gas outlet at the top of the condenser is connected with the gas container.

A further technical solution is that the transmission track is a ball transmission track, including a plurality of driving balls and driven balls, and the driving balls are driven by the first driving motor.

A further technical solution is that the second U-shaped groove track includes a track bottom plate, a plurality of U-shaped grooves are arranged in parallel on the track bottom plate, and the side walls of the U-shaped groove are provided with track balls.

A further technical scheme is that the pyrolysis method of the device comprises the following steps:

S1. Place the carbon fiber composite rod on the transfer track, start the first drive motor, and the transfer track enables the carbon fiber composite rod to enter the first U-shaped groove track of the pyrolysis device shell through the gas sealing device;

S2. After all the carbon fiber composite rods enter the shell of the pyrolysis device, start the gas sealing devices on both sides, and after nitrogen enters the gas sealing device to isolate the two sides of the shell of the pyrolysis device from the external gas, start the microwave in the shell of the pyrolysis device The generator feeds microwaves to rapidly heat the carbon fiber composite rod, so that the carbon fiber composite rod is cracked at 600-800 ° C. The gas obtained from the cracking enters the gas collection device from the exhaust port on the top of the shell of the pyrolysis device, and the liquid obtained from the cracking The pyrolysis oil outlet on the U-shaped groove track flows into the bottom of the pyrolysis device shell, and then enters the pyrolysis oil collection device through the bottom outlet;

S3. Under the transmission of the first U-shaped groove track, the cracked carbon fiber composite rod enters the stripper of the peeling device box after passing through the air sealing device on the other side, and the stripper removes the glass fiber on the surface of the carbon fiber composite rod After peeling off, the surface glass fiber is peeled off and collected at the bottom of the peeling device box;

S4. The carbon fiber composite rod is on the second U-shaped groove track of the oxidation device shell after it comes out of the stripper under the action of the transmission track;

S5. After all the carbon fiber composite rods have entered the oxidation device shell, a mixed gas with an oxygen content of 20%-30% is introduced into the oxidation device shell, the microwave generator is turned on, and the carbon fiber composite rods are heated at 550-600 ° C, and Incubate for 10-15min, oxidize and remove the residual carbon on the surface of the carbon fiber composite rod;

S6. After the oxidation is completed, the carbon fiber tow after the cracking and oxidation of the carbon fiber composite rod is obtained, and the carbon fiber is collected by the automatic winding device under the second U-shaped groove track transmission.

A further technical solution is that the gas obtained by cracking in the step S3 is cooled in the condenser in the gas collection device, the oily substance obtained after part of the condensation enters the liquid container, and the non-condensable gas enters the gas container.

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

1. Through the transmission track, the first U-shaped groove track and the second U-shaped groove track, under the action of the driving motor, the carbon fiber composite rod is sent from the transmission track to the microwave pyrolysis device for pyrolysis, and then sent to the microwave oxidation device. Microwave oxidation, the obtained carbon fiber is sent to the automatic winding device for winding and collection, realizing automatic continuous feeding and recycling of carbon fiber composite rods, realizing the integration of high-efficiency pyrolysis oxidation and recycling, and greatly improving the automation and intelligence of the equipment .

2. The glass fiber on the surface of the carbon fiber composite rod is stripped by a glass fiber stripper, and the glass fiber and carbon fiber are separated and recycled separately, which is convenient for carbon fiber oxidation treatment; through microwave heating, pyrolysis and oxidation, the carbon fiber composite rod is heated evenly, and the temperature rises rapidly. The pyrolysis oxidation efficiency is greatly improved; the pyrolyzed gas and oil are collected by the gas collection device and the cracked oil collection device, and recovered effectively.

3. The purpose of isolating the microwave pyrolysis device from the outside gas is realized by the gas sealing device, so as to avoid affecting the pyrolysis process; the U-shaped groove track is set as a U-shaped groove plus orbital ball transmission, and pyrolysis oil is set at the bottom of the U-shaped groove in the pyrolysis section. At the exit, the ball transfer is more stable, and high temperature resistant steel balls can be selected, which is more suitable for microwave heating environment.

Description of drawings

FIG. 1 is a schematic view of the front structure of the present invention.

FIG. 2 is a schematic diagram of the three-dimensional structure of the present invention.

FIG. 3 is a schematic diagram of the structure of the conveying track in the present invention.

FIG. 4 is a schematic structural diagram of the glass fiber stripping device in the present invention.

FIG. 5 is a schematic structural diagram of a microwave pyrolysis device in the present invention.

FIG. 6 is a schematic structural diagram of the gas sealing device in the present invention.

FIG. 7 is a schematic diagram of the internal structure of the gas sealing device in the present invention.

FIG. 8 is a schematic structural diagram of the first U-shaped groove track in the present invention.

FIG. 9 is a schematic structural diagram of a microwave oxidation device in the present invention.

FIG. 10 is a schematic structural diagram of the material recovery device in the present invention.

In the figure: 1-conveyor track, 2-first drive motor, 3-peeling device box, 4-stripper, 401-blade, 402-conical pipe, 5-second drive motor, 6-pyrolysis device shell Body, 7-air sealing device, 701-material channel, 702-rotating ring, 703-static ring, 704-spring, 8-first U-slot track, 801-track bottom plate, 802-U-slot, 803- Pyrolysis oil outlet, 804-track ball, 9-microwave generator, 10-oxidation device shell, 11-automatic winding device, 12-second U-shaped groove track, 13-condenser, 14-gas container, 15- Carbon fiber composite rod, 16-nitrogen supply device, 17-oxygen supply device.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention more clear, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

Figures 1 and 2 show: an integrated device for continuous microwave treatment and recycling of carbon fiber composite rods, including a material conveying device, a microwave pyrolysis device, a glass fiber stripping device, a microwave oxidation device, and a material recovery device that are connected in sequence.

The material conveying device includes a conveying track 1 and a first driving motor 2. As shown in Figure 3, the conveying track 1 is a ball conveying track. By setting track balls on both sides of the track of the U-shaped groove, it includes 16 active balls and 176 balls. A driven ball, the active ball is driven by the first drive motor 2, the ball can be made of rubber material, the friction force is larger, and its speed is 0.5-5r/min. The number of rails can be set according to requirements, and there are 4 in the drawing. The first drive motor 2 drives the conveying rail 1 to transport 4 carbon fiber composite rods 15 into the glass fiber stripping device at the same time.

The microwave pyrolysis device includes a pyrolysis device casing 6. As shown in FIG. 5, gas sealing devices 7 are arranged on both sides of the pyrolysis device casing 6, and a heating furnace body is arranged in the pyrolysis device casing 6. The first U The grooved track 8 is arranged through the heating furnace body, and the microwave generators 9 are arranged on the outside of the heating furnace body, and there are 8 symmetrically arranged. The heating furnace body and the shell 6 of the pyrolysis device are filled with thermal insulation material, the exhaust port at the top of the shell 6 of the pyrolysis device is connected to the gas collection device, and the bottom of the shell 6 of the pyrolysis device is provided with a pyrolysis oil collection device. The structure of the air sealing device 7 is shown in Figures 6 and 7. The air sealing device 7 is provided with a material channel 701, and the material channel 701 is sequentially sleeved with a rotating moving ring 702, a static ring 703, a spring 704, and the air sealing device 7 The gas inlet at the top is connected to the nitrogen supply device 16 . The sealing gas nitrogen gas enters the gas sealing device 7 through the self-operated pressure regulating valve, and a gas film is formed between the gas sealing device 7 and the shell 6 of the pyrolysis device to isolate the external environment.

As shown in FIG. 8 , the first U-shaped groove track 8 includes a track bottom plate 801 . A plurality of U-shaped grooves 802 are arranged in parallel on the track bottom plate 801 . The wall is provided with orbital balls 804, the orbital balls 804, and the orbital balls 804 are made of high-temperature-resistant steel.

The glass fiber stripping device includes a stripping device box 3, as shown in Figure 4, the stripping device box 3 is a hollow box, the inner side of the stripper 4 is a cone-shaped pipe 402, and the cone-shaped pipe 402 is provided with a blade 401, the material is cubic Boron nitride tool material, the rotary cutting speed is 0.5-5r/min. There is a waste outlet next to the blade 401, a transmission gear is arranged on the outer side wall of the stripper 4, and the transmission gear is driven by the second drive motor 5. The two ends of the tapered pipe 402 are rotated and arranged on the top of the stripping device box 3, and the stripping device box 3 A conical pipe 402 is provided on the hole, and the first U-shaped groove track 8 is sequentially connected to the material channel 701 of the gas sealing device 7 and one end of the conical pipe 402 of the stripper 4 . The carbon fiber composite rod 15 comes out of the air seal device 7 under the action of the first U-shaped groove track 8 and then enters the conical pipe 402. Under the action of the second drive motor 5, the blade 401 rotates and simultaneously strips off the surface of the carbon fiber composite rod 15. The glass fiber layer and the carbon fiber composite rod 15 are transported forward synchronously, and the peeled glass fiber falls from the waste outlet to the bottom of the peeling device box 3, and is cleaned regularly.

The microwave oxidation device is similar in structure to the microwave pyrolysis device. The microwave oxidation device includes an oxidation device housing 10. As shown in FIG. 9, a heating furnace body is arranged in the oxidation device housing 10, and a second U-shaped groove track 12 is arranged through it. In the heating furnace body, two microwave generators 9 are arranged symmetrically outside the heating furnace body. The heating furnace body and the oxidation device shell 10 are filled with thermal insulation material, and the air inlet at the top of the oxidation device shell 10 is connected to the oxygen supply device 17 . As shown in FIG. 10 , an automatic winding device 11 is installed in the material recovery device. The other end of the tapered pipe 402 is connected to the second U-shaped groove track 12 and the automatic winding device 11 in sequence.

In order to facilitate the separation of pyrolysis gas, the gas collection device includes a condenser 13 , the liquid outlet at the bottom of the condenser 13 is connected with the liquid container, and the gas outlet at the top of the condenser 13 is connected with the gas container 14 .

The microwave continuous treatment recovery method of the above device comprises the following steps:

S1. Place the carbon fiber composite rod 15 on the transfer track 1, start the first drive motor 2, and the transfer track 1 makes the carbon fiber composite rod 15 enter the first U-shaped groove track 8 of the shell 6 of the pyrolysis device through the gas seal device 7. ;

S2. After all the carbon fiber composite rods 15 enter the pyrolysis device shell 6, start the gas sealing devices 7 on both sides, and nitrogen gas enters the gas sealing device 7 to isolate both sides of the pyrolysis device shell 6 from the outside air, and start the heat The microwave generator 9 in the shell 6 of the pyrolysis device is fed into the microwave to rapidly heat the carbon fiber composite rod 15, so that the carbon fiber composite rod 15 is cracked at 600-800 ° C, and the gas obtained from the cracking is exhausted from the top of the shell 6 of the pyrolysis device. The port enters the gas collection device, and the liquid obtained by cracking flows into the bottom of the pyrolysis device shell 6 from the cracked oil outlet 803 on the first U-shaped groove track 8, and then enters the cracked oil collection device through the bottom discharge port; The condenser 13 in the gas collection device is cooled, the oily substance obtained after part of the condensation enters the liquid container, and the non-condensable gas enters the gas container 14 .

S3. Under the transmission of the first U-shaped groove track 8, the cracked carbon fiber composite rod 15 passes through the air sealing device 7 on the other side, and then enters the stripper 4 of the box body 3 of the stripping device, and the stripper 4 removes the carbon fiber The glass fiber on the surface of the composite rod 15 is peeled off, and the glass fiber on the surface layer is peeled off and collected at the bottom of the peeling device box 3;

S4. The carbon fiber composite rod 15 enters the second U-shaped groove track 12 of the oxidation device housing 10 after coming out of the stripper 4 under the conveying track 1;

S5. After all the carbon fiber composite rods 15 have entered the oxidation device housing 10, a mixed gas with an oxygen content of 10%-30% is introduced into the oxidation device housing 10, the microwave generator 9 is turned on, and the temperature is 550-600°C The carbon fiber composite rod 15 is heated and kept for 10-15 minutes, and the residual carbon on the surface of the carbon fiber composite rod 15 is removed by oxidation;

S6. After the oxidation is completed, the carbon fiber tow after the cracking and oxidation of the carbon fiber composite rod is obtained, and the carbon fiber is collected by the automatic winding device 11 under the conveyance of the second U-shaped groove track 12 .

Although the present invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the scope of this disclosure. within the scope and spirit of the principles. More particularly, various variations and modifications are possible in the component parts or arrangements of the subject combination arrangement within the scope of the present disclosure, drawings and claims. In addition to variations and modifications to the component parts or arrangements, other uses will also be apparent to those skilled in the art.

Claims (9)

1. A carbon fiber composite rod microwave continuous processing and recycling integrated device is characterized in that: comprising successively connected material conveying device, microwave pyrolysis device, glass fiber stripping device, microwave oxidation device, material recovery device, described material conveying device It comprises a conveying track (1), a first driving motor (2), and the first driving motor (2) drives the conveying track (1) to convey the carbon fiber composite rod; the microwave pyrolysis device comprises a pyrolysis device casing (6), and the pyrolysis device Gas sealing devices (7) are arranged on both sides of the casing (6), and a first U-shaped groove track (8) and a microwave generator (9) are arranged in the casing (6) of the pyrolysis device. (6) The exhaust port at the top is connected to the gas collection device, and the pyrolysis device shell (6) is provided with a pyrolysis oil collection device at the bottom; The top is rotated and provided with a stripper (4), and the stripper (4) is connected with the second drive motor (5) through a transmission device; the microwave oxidation device comprises an oxidation device housing (10), and the oxidation device housing (10) is provided with a The second U-shaped groove track (12), the microwave generator (9), the air inlet at the top of the oxidation device housing (10) is connected to the oxygen supply device, and the material recovery device is provided with an automatic winding device (11); The outlet of the track (1) is connected to the inlet of the gas sealing device (7) on the side of the shell (6) of the pyrolysis device, and the outlet of the gas sealing device (7) is sequentially connected with the first U-shaped groove track (8). , The air sealing device (7), the stripper (4), the second U-shaped groove track (12), and the automatic winding device (11) on the other side are connected. 2. The integrated device for continuous microwave treatment and recycling of carbon fiber composite rods according to claim 1, characterized in that: the inner side of the stripper (4) is a cone-shaped pipe (402), and the cone-shaped pipe (402) is provided with There is a blade (401), a waste outlet is arranged beside the blade (401), a transmission gear is arranged on the outer side wall of the stripper (4), the transmission gear is driven by the second drive motor (5), and both ends of the tapered pipe (402) rotate It is arranged on the top of the peeling device box (3), the peeling device box (3) is provided with a conical pipe (402) to give way, and the conveying track (1) is connected with the conical pipe (402). 3 . The integrated device for continuous microwave processing and recycling of carbon fiber composite rods according to claim 1 , wherein the first U-shaped groove track ( 8 ) comprises a track bottom plate ( 801 ), and the track bottom plate ( 801 ) is on the track bottom plate ( 801 ). A plurality of U-shaped grooves (802) are arranged in parallel, the bottom of the U-shaped groove (802) is provided with a pyrolysis oil outlet (803), and the side wall of the U-shaped groove (802) is provided with orbital balls (804). 4. The carbon fiber composite rod microwave continuous processing and recycling integrated device according to claim 1, characterized in that: the gas sealing device (7) is provided with a material channel (701), and the material channel (701) is sequentially sleeved A rotating moving ring (702), a static ring (703) and a spring (704) are provided, and the gas inlet at the top of the gas sealing device (7) is connected with the nitrogen gas supplying device. 5. The integrated device for continuous microwave processing and recycling of carbon fiber composite rods according to claim 1, wherein the gas collection device comprises a condenser (13), and the liquid outlet at the bottom of the condenser (13) is connected to a liquid container , the gas outlet at the top of the condenser (13) is connected to the gas container (14). 6. The integrated device for continuous microwave processing and recycling of carbon fiber composite rods according to claim 1, characterized in that: the transmission track (1) is a ball transmission track, comprising a number of active balls and driven balls, and the active balls are formed by The first drive motor (2) is driven. 7 . The integrated device for continuous microwave processing and recycling of carbon fiber composite rods according to claim 1 , wherein the second U-shaped groove track ( 12 ) comprises a track bottom plate ( 801 ), and the track bottom plate ( 801 ) is on the track bottom plate ( 801 ). 8 . A plurality of U-shaped grooves (802) are arranged in parallel, and orbital balls (804) are arranged on the side walls of the U-shaped grooves (802). 8. The integrated device for continuous microwave treatment and recovery of carbon fiber composite rods according to any one of claims 1-7, wherein the integrated method for continuous microwave treatment and recovery of the device comprises the following steps: S1. Place the carbon fiber composite rod (15) on the transfer track (1), start the first drive motor (2), and the transfer track (1) makes the carbon fiber composite rod (15) enter the pyrolysis device through the gas seal device (7). on the first U-shaped groove track (8) of the housing (6); S2. After all the carbon fiber composite rods (15) have entered the pyrolysis device shell (6), start the gas sealing devices (7) on both sides, and nitrogen gas enters the gas sealing device (7) to make the pyrolysis device shell (6) After the two sides are isolated from the outside air, start the microwave generator (9) in the shell (6) of the pyrolysis device, feed the microwave to rapidly heat the carbon fiber composite rod (15), and make the carbon fiber composite rod (15) at 600-800°C Under cracking, the gas obtained by cracking enters the gas collection device from the exhaust port at the top of the pyrolysis device shell (6), and the liquid obtained by cracking flows into the heat from the cracked oil outlet (803) on the first U-shaped groove track (8). The bottom of the shell (6) of the cracking device, and then enter the cracking oil collection device through the bottom discharge port; S3. The cracked carbon fiber composite rod (15) is conveyed by the first U-shaped groove track (8), passes through the air sealing device (7) on the other side, and then enters the stripper of the peeling device box (3). In (4), the peeler (4) peels off the glass fiber on the surface of the carbon fiber composite rod (15), and the glass fiber on the surface layer is peeled off and collected at the bottom of the peeling device box (3); S4. The carbon fiber composite rod (15) enters the second U-shaped groove track (12) of the oxidation device housing (10) after exiting the stripper (4) under the action of the conveying track (1); S5. After all the carbon fiber composite rods (15) have entered the oxidation device housing (10), a mixed gas with an oxygen content of 10%-30% is introduced into the oxidation device housing (10), and the microwave generator (9) is turned on. ), heating the carbon fiber composite rod (15) at 550-600° C., and maintaining the temperature for 10-15 minutes, and oxidizing and removing the residual carbon on the surface of the carbon fiber composite rod (15); S6. After the oxidation is completed, the carbon fiber tow after the cracking and oxidation of the carbon fiber composite rod is obtained, and the carbon fiber is collected by the automatic winding device (11) under the transmission of the second U-shaped groove track (12). 9. A carbon fiber composite rod microwave continuous processing and recycling integrated device according to claim 8, characterized in that: the gas obtained by cracking in the step S3 is cooled in the condenser (13) in the gas collection device, and part of The condensed oil substance enters the liquid container, and the non-condensable gas enters the gas container (14).

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