A carbon fiber manufacturing system

Abstract

The present invention belongs to the technical field of carbon fiber manufacturing, and in particular, relates to a carbon fiber manufacturing system. The carbon fiber manufacturing system comprises a reaction tube; a feed shell is arranged at the top of the reaction tube, a first motor is installed at the middle top of the feed shell, a rotating column is connected to the output end of the first motor, a pair of feed tubes are arranged vertically on the side wall outside the feed shell, and conveying grooves are respectively provided at the side wall positions corresponding to the two feed tubes; the present invention can make the raw material liquid and the carrier gas be introduced into the reaction tube in a pulsed manner, improve the processing quality of the carbon fiber, and can also control the opening and closing of the two feed tubes at the same time, without the need to set up multiple blocking structures and control equipment, and can also improve the efficiency of the raw material liquid being quickly extruded into the high temperature area, and evaporating and thermally decomposing after contacting the high temperature filter screen, effectively improving the generation efficiency of the carbon fiber.

Description

Technical Field

[0001] The invention belongs to the technical field of carbon fiber manufacturing, and in particular relates to a carbon fiber manufacturing system. Background Art

[0002] Carbon fiber has superior specific strength and specific modulus compared to other fibers. It is widely used in industry as a reinforcing fiber for composites with resins, etc., due to its light weight and excellent mechanical properties.

[0003] A Chinese patent with publication number CN104246030B discloses a method for manufacturing carbon fiber, including preparing a raw material liquid containing a carbon compound and a catalyst or a precursor of the catalyst, and a reactor having a high temperature region heated to 900 to 1300°C. The raw material liquid is introduced into the reactor to generate a mixture consisting of a gas containing a carbon source and catalyst particles dispersed in the gas. Then, a carrier gas is introduced into the reactor in a pulsed manner to extrude the mixture into the high temperature region. Then, in the high temperature region, the carbon source contained in the mixture is contacted with the catalyst particles to grow the initial fibers, and then the carbon fibers are grown in an environment where the carrier gas is retained.

[0004] However, in the carbon fiber manufacturing method of the above-mentioned technology, by successively introducing the raw material liquid and the carrier gas into the reaction tube in a pulsed manner, carbon fibers that are fully grown along the length and radius directions can be efficiently manufactured. However, this method requires respectively setting up blocking structures and control equipment for controlling the raw material liquid and the carrier gas. At the same time, the time interval for the introduction of the raw material liquid and the carrier gas is relatively strict. In addition, since there is a sequence in the introduction of the raw material liquid and the carrier gas, the overall processing efficiency of the carbon fiber will also be reduced. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a carbon fiber manufacturing system described in the present invention includes a reaction tube; an exhaust port is provided at the bottom end of the reaction tube, an electric furnace is sleeved on the outside of the reaction tube, a filter is provided on the top of the inner part of the reaction tube, a cylindrical feed shell is provided on the top of the reaction tube, a first motor is installed on the top of the middle part of the feed shell, the output end of the first motor is connected to a rotating shaft extending inside the feed shell, the bottom end of the rotating shaft is connected to a cylindrical rotating column, the side wall of the rotating column is in contact with the inner wall of the feed shell, a pair of feed pipes are arranged vertically on the side wall outside the feed shell, and the feed pipes at the top are arranged on the side wall of the feed shell. The tube is used for conveying the carrier gas, and the feed pipe at the bottom is used for conveying the raw material liquid. A feed port connected to the feed pipe is provided on the side wall of the feed shell, and conveying grooves are respectively provided at the side wall positions corresponding to the two feed ports of the rotating column, and the gas outlet end of the top conveying groove is connected to the gas inlet end of the bottom conveying groove, and the gas outlet end of the bottom conveying groove is connected to the top of the reaction tube; in the carbon fiber manufacturing method with publication number CN104246030B, by successively introducing the raw material liquid and the carrier gas into the reaction tube in a pulsed manner, carbon fibers that are fully grown along the length direction and the radius direction can be efficiently manufactured, but in this method, it is necessary to respectively set up for controlling the raw material liquid and the carrier gas The blocking structure and control equipment have strict requirements on the time interval for the introduction of the raw material liquid and the carrier gas, and because there is a sequence in the introduction of the raw material liquid and the carrier gas, the overall processing efficiency of the carbon fiber will also be reduced; when the carbon fiber manufacturing system of the present invention is working, the first motor drives the rotating column to rotate in the feed shell through the rotating shaft, and when the two conveying groove ports on the rotating column move to the feed port position, the two feed pipes are in an open state at this time, so that the raw material liquid and the carrier gas can be introduced into the reaction tube at the same time through the conveying groove, and when the two conveying groove ports are away from the feed port position, the side wall of the rotating column can block the feed port, so that the two feed pipes can be in a closed state, which can The raw material liquid and the carrier gas are introduced into the reaction tube in a pulsed manner, and the processing quality of the carbon fiber can be improved. At the same time, the above structure can also control the opening and closing of the two feed pipes at the same time, without the need to set up multiple blocking structures and control devices. Moreover, since the raw material liquid and the carrier gas are introduced from the opened feed pipe at the same time, the introduction interval between the two is reduced, thereby improving the processing efficiency of the carbon fiber. The carrier gas located in the top conveying trough can first flow into the bottom conveying trough when introduced, and can promote the flow of the raw material liquid in the bottom conveying trough, thereby further improving the efficiency of the raw material liquid being quickly extruded into the high-temperature area, and evaporating and thermally decomposing after contacting the high-temperature filter screen, thereby further improving the efficiency of carbon fiber generation.

[0007] Preferably, the conveying trough at the bottom is arranged in an arc shape, and its gas outlet end is located in the middle of the top end of the reaction tube; by setting the discharge position of the conveying trough, the raw material liquid and the carrier gas can start to fall from the axial position of the reaction tube, so as to maximize the uniform distance between the raw material liquid and the carrier gas and the inner walls of the reaction tube, and reduce the raw material liquid and the carrier gas from the outflow point under the action of the rotating column. Due to the radial centrifugal force generated, the offset occurs and the carrier gas contacts the inner wall of the reaction tube in advance, thereby improving the stability of the carbon fiber during processing.

[0008] Preferably, the width of the air inlet end of the conveying trough at the top is greater than the width of the air inlet end of the conveying trough at the bottom; by setting the width of the upper and lower conveying trough ports, the conveying trough used for carrier gas delivery and the feed pipe can be connected for a longer time, so that the conveying trough for conveying raw material liquid can be introduced more permanently, thereby promoting the full discharge of the raw material liquid inside it.

[0009] Preferably, the filter is composed of a spherical filter material, and the side wall of the filter is in contact with the inner wall of the reaction tube; by setting the structure of the filter, the contact area and contact frequency between the filter and the raw material liquid can be increased, so that after a part of the raw material liquid passes through the top of the filter, even if it is not fully evaporated and thermally decomposed, it can be decomposed after moving to the bottom of the filter, thereby enabling the raw material to fully react.

[0010] Preferably, a second motor is provided at a position corresponding to the middle of the filter on one side of the electric furnace, and the output end of the second motor is connected to the filter through a rotating rod, and the rotating rod passes through the interior of the filter and is rotatably connected to the side wall of the reaction tube; when the raw material liquid is introduced into the reaction tube, the second motor drives the filter to rotate through the rotating rod. On the one hand, the filter can break up the falling raw material liquid and disperse it on the surface of the filter over a larger area, thereby promoting the evaporation of the raw material liquid. At the same time, a part of the raw material liquid can continue to fall and flow into the side wall of the rotating rod, and under the action of the rotating rod, it is scattered to the surroundings to the inner surface of the filter, thereby further promoting the evaporation and decomposition of the raw material liquid.

[0011] Preferably, a mounting sleeve is provided inside the end of the feed pipe close to the feed shell, a funnel-shaped cavity is provided inside the mounting sleeve, a movable blocking ball is provided at the end of the funnel-shaped cavity away from the feed shell, an elastic rope is connected between the blocking ball and the inner wall of the funnel-shaped cavity, a magnetic block is inlaid and installed at the side wall of the rotating column corresponding to the air inlet end of the conveying trough, the blocking ball is made of magnetic material and can repel the approaching magnetic block; when the conveying trough is away from the feed pipe, the blocking ball clings to the inner wall of the funnel-shaped cavity under the pulling force of the elastic rope, and can block the funnel-shaped cavity, thereby reducing the leakage of materials from the feed pipe to the feed shell, and when the conveying trough moves to the position of the feed pipe, the magnetic block can repel the blocking ball, so that the blocking ball moves to the end away from the feed shell, so that the blocking ball no longer blocks the funnel-shaped cavity, so that the material in the feed pipe can be effectively discharged.

[0012] Preferably, a groove is provided at the side wall position where the funnel-shaped cavity and the sealing ball are in contact, a sealing bag is connected to the position of the sealing ball corresponding to the groove, and a conducting groove connected to the sealing bag is provided at the end of the sealing ball away from the feed shell; when the sealing ball seals the funnel-shaped cavity under the tension of the elastic rope, the material in the feed pipe can pass through the conducting groove and flow into the sealing bag, and because the material itself has a certain pressure, the sealing bag is filled in the groove after being bulged after being filled, thereby enhancing the sealing effect of the funnel-shaped cavity.

[0013] Preferably, a sliding groove is provided at the end of the sealing groove away from the sealing ball, and a slider is slidably connected inside the sliding groove. The slider is connected to the end of the sliding groove away from the sealing ball through an elastic member. The slider is made of magnetic material, and the slider can repel the approaching magnetic block. When the conveying groove moves to the feeding pipe, the repulsive force exerted on the slider by the magnetic block causes the slider to slide into the groove and squeeze out the sealing bag in the groove. At the same time, the sealing ball and the end close to the slider are also in a state of opposite attraction, so that when the sealing ball is away from the feeding shell, it can further promote the slider to press the sealing bag out of the groove by attracting the slider, so that after the sealing bag is successfully separated from the groove, the material in the feeding pipe can flow out stably.

[0014] The beneficial effects of the present invention are as follows:

[0015] 1. The present invention provides a carbon fiber manufacturing system, which can introduce raw material liquid and carrier gas into a reaction tube in a pulsed manner, thereby improving the processing quality of the carbon fiber. At the same time, it can also simultaneously control the opening and closing of two feed pipes without setting up multiple blocking structures and control devices. The carrier gas located in the top conveying trough can first flow into the bottom conveying trough when introduced, and can promote the flow of the raw material liquid in the bottom conveying trough, thereby further improving the efficiency of the raw material liquid being quickly extruded into the high-temperature area, and evaporating and thermally decomposing after contacting the high-temperature filter screen, thereby further improving the efficiency of carbon fiber generation.

[0016] 2. The present invention provides a carbon fiber manufacturing system. After the raw material liquid is introduced into the reaction tube, the second motor drives the filter to rotate through the rotating rod. On the one hand, the filter can break up the falling raw material liquid and disperse it on the filter surface over a larger area, thereby promoting the evaporation of the raw material liquid. At the same time, a portion of the raw material liquid can continue to fall and flow into the side wall of the rotating rod, and under the action of the rotating rod, it is scattered to the surroundings to the inner surface of the filter, thereby further promoting the evaporation and decomposition of the raw material liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] Figure 1 It is a three-dimensional schematic diagram of the present invention;

[0020] Figure 2 is a cross-sectional view of the present invention;

[0021] Figure 3 yes Figure 2 The enlarged view of point A in the middle;

[0022] Figure 4 It is a front view of the transfer column of the present invention;

[0023] Figure 5 It is a partial structural schematic diagram of the present invention;

[0024] Figure 6 yes Figure 5 The enlarged view of point B in the middle;

[0025] In the figure: reaction tube 1, exhaust port 2, electric furnace 3, filter 4, feed shell 5, first motor 6, rotating column 7, feed pipe 8, feed port 9, conveying trough 10, second motor 11, rotating rod 12, mounting sleeve 13, funnel-shaped cavity 14, blocking ball 15, elastic rope 16, magnetic block 17, groove 18, sealing capsule 19, conducting groove 20, slide groove 21, slider 22, elastic member 23. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Embodiment 1:

[0028] See also Figure 1-Figure 3As shown, a carbon fiber manufacturing system described in an embodiment of the present invention comprises a reaction tube 1; an exhaust port 2 is provided at the bottom end of the reaction tube 1, an electric furnace 3 is sleeved on the outside of the reaction tube 1, a filter 4 is provided on the top of the inner part of the reaction tube 1, a cylindrical feed shell 5 is provided on the top of the reaction tube 1, a first motor 6 is installed on the top of the middle part of the feed shell 5, an output end of the first motor 6 is connected to a rotating shaft extending inside the feed shell 5, a cylindrical rotating column 7 is connected to the bottom end of the rotating shaft, a side wall of the rotating column 7 is fitted with the inner wall of the feed shell 5, a pair of feed pipes 8 are arranged vertically on the side wall outside the feed shell 5, and the feed pipe 8 at the top is used for the delivery of carrier gas. The feed pipe 8 at the bottom is used for conveying the raw material liquid, and a feed port 9 connected to the feed pipe 8 is provided on the side wall of the feed shell 5, and conveying grooves 10 are respectively provided at the side wall positions corresponding to the two feed ports 9 of the rotating column 7, and the gas outlet end of the top conveying groove 10 is connected to the gas inlet end of the bottom conveying groove 10, and the gas outlet end of the bottom conveying groove 10 is connected to the top of the reaction tube 1; in the carbon fiber manufacturing method with publication number CN104246030B, by successively introducing the raw material liquid and the carrier gas into the reaction tube 1 in a pulsed manner, it is possible to efficiently manufacture carbon fibers that are fully grown in the length direction and the radius direction, but in this method, it is necessary to respectively set up blocking devices for controlling the raw material liquid and the carrier gas. The structure and control equipment have strict requirements on the time interval for introducing the raw material liquid and the carrier gas, and because there is a sequence in the introduction of the raw material liquid and the carrier gas, the overall processing efficiency of the carbon fiber will be reduced; when the carbon fiber manufacturing system of the present invention is working, the first motor 6 drives the rotating column 7 to rotate in the feed shell 5 through the rotating shaft, and when the two conveying grooves 10 ports on the rotating column 7 move to the position of the feed port 9, the two feed pipes 8 are in an open state at this time, so that the raw material liquid and the carrier gas can be introduced into the reaction tube 1 at the same time through the conveying grooves 10, and when the two conveying grooves 10 ports are away from the position of the feed port 9, the side wall of the rotating column 7 can block the feed port 9, so that the two feed pipes 8 can be in a closed state, and the feed The raw material liquid and the carrier gas can be introduced into the reaction tube 1 in a pulsed manner, and the processing quality of the carbon fiber can be improved. At the same time, the above structure can also control the opening and closing of the two feed pipes 8 at the same time, without the need to set up multiple blocking structures and control devices. Since the raw material liquid and the carrier gas are introduced from the opened feed pipe 8 at the same time, the introduction interval between the two is reduced, and the processing efficiency of the carbon fiber is improved. The carrier gas located in the top conveying groove 10 can flow into the bottom conveying groove 10 first when introduced, and can promote the flow of the raw material liquid in the bottom conveying groove 10, thereby further improving the efficiency of the raw material liquid being quickly extruded into the high-temperature area, and evaporating and thermally decomposing after contacting the high-temperature filter net, thereby further improving the efficiency of carbon fiber generation.

[0029] The conveying trough 10 at the bottom is arranged in an arc shape, and its gas outlet end is located in the middle of the top end of the reaction tube 1; by setting the discharge position of the conveying trough 10, the raw material liquid and the carrier gas can start to fall from the axial position of the reaction tube 1, so as to maximize the uniform distance between the raw material liquid and the carrier gas and the inner walls of the reaction tube 1, and reduce the raw material liquid and the carrier gas from the outflow point under the action of the rotating column 7. Due to the radial centrifugal force generated, the offset occurs and the carrier gas contacts the inner wall of the reaction tube 1 in advance, thereby improving the stability of the carbon fiber during processing.

[0030] like Figure 4 As shown, the width of the air inlet end of the conveying groove 10 at the top is greater than the width of the air inlet end of the bottom conveying groove 10; by setting the width of the upper and lower conveying grooves 10 ports, the conveying groove 10 used for carrier gas delivery can be connected with the feed pipe 8 for a longer time, so that the conveying groove 10 for conveying raw material liquid can be introduced more permanently, thereby promoting the full discharge of the raw material liquid inside it.

[0031] like Figure 1-Figure 2 As shown, the filter 4 is composed of a spherical filter material, and the side wall of the filter 4 is in contact with the inner wall of the reaction tube 1; by setting the structure of the filter 4, the contact area and contact frequency between the filter 4 and the raw material liquid can be increased, so that after a part of the raw material liquid passes through the top of the filter 4, even if it is not fully evaporated and thermally decomposed, it can be decomposed after moving to the bottom of the filter 4, so that the raw material can be fully reacted.

[0032] A second motor 11 is provided at a position corresponding to the middle of the filter 4 on one side of the electric furnace 3, and the output end of the second motor 11 is connected to the filter 4 through a rotating rod 12, and the rotating rod 12 passes through the inside of the filter 4 and is rotatably connected to the side wall of the reaction tube 1; when the raw material liquid is introduced into the reaction tube 1, the second motor 11 drives the filter 4 to rotate through the rotating rod 12. On the one hand, the filter 4 can break up the falling raw material liquid and disperse it on the surface of the filter 4 over a larger area, thereby promoting the evaporation of the raw material liquid. At the same time, a part of the raw material liquid can continue to fall and flow into the side wall of the rotating rod 12, and under the action of the rotating rod 12, it is thrown around to the inner surface of the filter 4, thereby further promoting the evaporation and decomposition of the raw material liquid.

[0033] Embodiment 2:

[0034] like Figure 2-Figure 6As shown, in contrast to Example 1, another embodiment of the present invention is as follows: a mounting sleeve 13 is provided inside the end of the feed pipe 8 close to the feed shell 5, a funnel-shaped cavity 14 is provided inside the mounting sleeve 13, a movable blocking ball 15 is provided at the end of the funnel-shaped cavity 14 away from the feed shell 5, an elastic rope 16 is connected between the blocking ball 15 and the inner wall of the funnel-shaped cavity 14, a magnetic block 17 is inlaid and installed at the side wall of the rotating column 7 corresponding to the air inlet end of the conveying trough 10, and the blocking ball 15 is made of magnetic material and can be connected with the magnetic block close to the feed shell 5. 17 repels each other; when the conveying trough 10 is away from the feeding pipe 8, the blocking ball 15 is tightly attached to the inner wall of the funnel-shaped cavity 14 under the pulling force of the elastic rope 16, and can block the funnel-shaped cavity 14, thereby reducing the leakage of materials from the feeding pipe 8 to the feeding shell 5; when the conveying trough 10 moves to the position of the feeding pipe 8, the magnetic block 17 can repel the blocking ball 15, so that the blocking ball 15 moves to the end away from the feeding shell 5, so that the blocking ball 15 no longer blocks the funnel-shaped cavity 14, so that the material in the feeding pipe 8 can be effectively discharged.

[0035] A groove 18 is provided at the side wall position where the funnel-shaped cavity 14 and the sealing ball 15 are in contact, and a sealing bag 19 is connected to the sealing ball 15 at a position corresponding to the groove 18. A conducting groove 20 connected to the sealing bag 19 is provided at the end of the sealing ball 15 away from the feed shell 5; when the sealing ball 15 seals the funnel-shaped cavity 14 under the pulling force of the elastic rope 16, the material in the feed pipe 8 can pass through the conducting groove 20 and flow into the sealing bag 19. Since the material itself has a certain pressure, the sealing bag 19 is filled in the groove 18 after being bulged after being filled, thereby enhancing the sealing effect of the funnel-shaped cavity 14.

[0036] The sealing groove is provided with a slide groove 21 at one end away from the sealing ball 15, and a slider 22 is slidably connected inside the slide groove 21. The slider 22 is connected to the end of the slide groove 21 away from the sealing ball 15 through an elastic member 23. The slider 22 is made of magnetic material, and the slider 22 can repel the approaching magnetic block 17. When the conveying groove 10 moves to the feeding pipe 8, the repulsive force exerted by the magnetic block 17 on the slider 22 causes the slider 22 to slide into the groove 18 and squeeze out the sealing capsule 19 in the groove 18. At the same time, the end of the sealing ball 15 close to the slider 22 is also in a state of opposite attraction, so that when the sealing ball 15 is away from the feeding shell 5, it can further promote the slider 22 to press the sealing capsule 19 out of the groove 18 by attracting the slider 22, so that after the sealing capsule 19 is smoothly separated from the groove 18, the material in the feeding pipe 8 can flow out stably.

[0037] Working principle: When the carbon fiber manufacturing system of the present invention is working, the first motor 6 drives the rotating column 7 to rotate in the feed shell 5 through the rotating shaft. When the two conveying grooves 10 on the rotating column 7 move to the position of the feed port 9, the two feed pipes 8 are in an open state, so that the raw material liquid and the carrier gas can be introduced into the reaction tube 1 through the conveying groove 10 at the same time. When the two conveying grooves 10 are far away from the position of the feed port 9, the side wall of the rotating column 7 can block the feed port 9, so that the two feed pipes 8 are in a closed state, and the raw material liquid and the carrier gas can be introduced into the reaction tube 1 in a pulsed manner, and the processing quality of the carbon fiber can be improved. At the same time, the above structure can also The opening and closing of the two feed pipes 8 are controlled at the same time, and there is no need to set up multiple blocking structures and control devices. In addition, since the raw material liquid and the carrier gas are introduced from the opened feed pipe 8 at the same time, the introduction interval between the two is reduced, and the processing efficiency of the carbon fiber is improved. The carrier gas located in the top conveying trough 10 can first flow into the bottom conveying trough 10 when introduced, and can promote the flow of the raw material liquid in the bottom conveying trough 10, thereby further improving the efficiency of the raw material liquid being quickly extruded into the high-temperature area, and evaporating and thermally decomposing after contacting with the high-temperature filter screen, thereby further improving the efficiency of carbon fiber generation; by setting the discharge position of the conveying trough 10, the raw material liquid and the carrier gas can be discharged from the reaction tube 1 The axis position starts to fall, so that the raw material liquid and the carrier gas maintain a uniform distance from each inner wall of the reaction tube 1 to the maximum extent, and the raw material liquid and the carrier gas are reduced from the outflow under the action of the rotating column 7. Due to the radial centrifugal force generated, the raw material liquid and the carrier gas are offset from the outflow point and contact the inner wall of the reaction tube 1 in advance, thereby improving the stability of the carbon fiber during processing; by setting the width of the upper and lower conveying grooves 10 ports, the conveying groove 10 used for carrier gas delivery and the feed pipe 8 can be connected for a longer time, so that the conveying groove 10 for conveying the raw material liquid can be introduced more permanently, and the raw material liquid inside can be fully discharged; by setting the structure of the filter 4, the contact between the filter 4 and the raw material liquid can be increased. The contact area and contact frequency make it possible for a portion of the raw material liquid to be decomposed after moving to the bottom of the filter 4 even if it is not fully evaporated and thermally decomposed after passing through the top of the filter 4, so that the raw material can be fully reacted; after the raw material liquid is introduced into the reaction tube 1, the second motor 11 drives the filter 4 to rotate through the rotating rod 12. On the one hand, the filter 4 can break up the falling raw material liquid and disperse it on the surface of the filter 4 in a larger area, promoting the evaporation of the raw material liquid. At the same time, a portion of the raw material liquid can continue to fall and flow into the side wall of the rotating rod 12, and under the action of the rotating rod 12, it is scattered to the inner surface of the filter 4 to further promote the evaporation and decomposition of the raw material liquid.When the conveying trough 10 is away from the feeding pipe 8, the blocking ball 15 is tightly attached to the inner wall of the funnel-shaped cavity 14 under the pulling force of the elastic rope 16, and can block the funnel-shaped cavity 14, thereby reducing the leakage of materials from the feeding pipe 8 to the feeding shell 5. When the conveying trough 10 moves to the position of the feeding pipe 8, the magnetic block 17 can repel the blocking ball 15, so that the blocking ball 15 moves to the end away from the feeding shell 5, so that the blocking ball 15 no longer blocks the funnel-shaped cavity 14, so that the material in the feeding pipe 8 can be effectively discharged; when the blocking ball 15 blocks the funnel-shaped cavity 14 under the pulling force of the elastic rope 16, the material in the feeding pipe 8 can pass through the conducting groove 20 and flow into the sealing bag 19. The material itself has a certain pressure, so that the sealing capsule 19 is filled in the groove 18 after the filling is bulged, thereby strengthening the blocking effect of the funnel-shaped cavity 14; when the conveying trough 10 moves to the feeding pipe 8, the repulsive force exerted by the magnetic block 17 on the slider 22 causes the slider 22 to slide into the groove 18 and squeeze out the sealing capsule 19 in the groove 18. At the same time, the end of the blocking ball 15 close to the slider 22 is also in a state of opposite attraction, so that when the blocking ball 15 is away from the feeding shell 5, it can attract the slider 22, further promoting the slider 22 to press the sealing capsule 19 out of the groove 18, so that the sealing capsule 19 and the groove 18 are smoothly separated, and the material in the feeding pipe 8 can flow out stably. ;

[0038] The basic principles, main features and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and the description in the specification are only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A carbon fiber manufacturing system, comprising a reaction tube (1); characterized in that: The bottom end of the reaction tube (1) is provided with an exhaust port (2), the outside of the reaction tube (1) is provided with an electric furnace (3), the top end of the inside of the reaction tube (1) is provided with a filter (4), the top end of the reaction tube (1) is provided with a cylindrical feed shell (5), the middle top end of the feed shell (5) is installed with a first motor (6), the output end of the first motor (6) is connected to a rotating shaft extending inside the feed shell (5), the bottom end of the rotating shaft is connected to a cylindrical rotating column (7), the side wall of the rotating column (7) is in contact with the inner wall of the feed shell (5), a pair of feed pipes (8) are arranged vertically on the side wall outside the feed shell (5), and the feed pipe (8) at the top end is used for conveying carrier gas, and the feed pipe (8) at the bottom end is used for conveying carrier gas. The material pipe (8) is used for conveying the raw material liquid. A feed port (9) connected to the feed pipe (8) is provided on the side wall of the feed shell (5). Conveying grooves (10) are respectively provided at the side wall positions corresponding to the two feed ports (9) of the rotating column (7), and the gas outlet end of the top conveying groove (10) is connected to the gas inlet end of the bottom conveying groove (10), and the gas outlet end of the bottom conveying groove (10) is connected to the top of the reaction tube (1); the filter (4) is composed of a spherical filter material, and the side wall of the filter (4) is in contact with the inner wall of the reaction tube (1); a second motor (11) is provided at a position corresponding to the middle of the filter (4) on one side of the electric furnace (3), and the output end of the second motor (11) is connected to the reaction tube (1) through a rotating rod ( 12) is connected to a filter (4), and the rotating rod (12) penetrates the interior of the filter (4) and is rotatably connected to the side wall of the reaction tube (1); a mounting sleeve (13) is arranged inside the end of the feed pipe (8) close to the feed shell (5); a funnel-shaped cavity (14) is arranged inside the mounting sleeve (13); a movable blocking ball (15) is arranged at the end of the funnel-shaped cavity (14) away from the feed shell (5); an elastic rope (16) is connected between the blocking ball (15) and the inner wall of the funnel-shaped cavity (14); a magnetic block (17) is embedded and installed at the side wall of the rotating column (7) corresponding to the air inlet end of the conveying trough (10); the blocking ball (15) is made of magnetic material and can repel the magnetic block (17) close to it; A groove (18) is provided at the side wall position where the bucket-shaped cavity (14) and the sealing ball (15) are in contact, and a sealing capsule (19) is connected to the sealing ball (15) at a position corresponding to the groove (18). A conducting groove (20) connected to the sealing capsule (19) is provided at the end of the sealing ball (15) away from the feed shell (5), and a slide groove (21) is provided at the end of the sealing capsule (19) away from the sealing ball (15). A slider (22) is slidably connected inside the slide groove (21), and the slider (22) is connected to the end of the slide groove (21) away from the sealing ball (15) through an elastic member (23). The slider (22) is made of magnetic material, and the slider (22) can repel the approaching magnetic block (17).

2. The carbon fiber manufacturing system according to claim 1, characterized in that: The conveying trough (10) located at the bottom is arranged in an arc shape, and its gas outlet end is located at the middle of the top end of the reaction tube (1).

3. The carbon fiber manufacturing system according to claim 1, characterized in that: The width of the air inlet end of the conveying trough (10) at the top is greater than the width of the air inlet end of the conveying trough (10) at the bottom.

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