Carbon fiber precursor moisture removal device and method

Abstract

The invention discloses a carbon fiber precursor moisture removal device and method.The carbon fiber precursor moisture removal device comprises two supporting plates, mounting blocks are mounted on the opposite sides of the two supporting plates, and the two mounting blocks are fixedly connected through a gas guide shell. The device comprises a mounting block, an air guide shell, a connecting block, a moisture removal frame, a collecting shell, a rotating cylinder, a fixed column, an annular heating block, a temperature sensor, an air hole, a fixed block, a connector, an air guide pipe, a conveying pipe, a through groove, a concave plate, a guide roller, a positioning roller, a through opening, a concave block, an extrusion roller, a fixed shell, a movable plate, a stop block, a positioning rod, a buffer spring, an adjusting block and an air blower. According to the water removal device for the carbon fiber precursor, through mutual cooperation of the connecting shell and the filter screen, the water removal device for the carbon fiber precursor is achieved, water in tows can be conveniently removed, the effect of secondary water removal is achieved, water removal is more thorough, and water spots obtained through water extrusion can be conveniently collected.

Description

Technical Field

[0001] The invention relates to the technical field of water removal, and in particular to a device and method for removing water from carbon fiber precursor. Background Art

[0002] In the production process of polyacrylonitrile-based carbon fiber dry-jet wet-spinning raw yarn, the yarn bundle needs to be washed with water. After washing, a large amount of water will remain on the yarn bundle, so the water needs to be removed.

[0003] According to the application number: CN201811345749.4, a device and method for removing moisture from carbon fiber precursor, the device includes a bracket, a hollow compressed air distribution pipe fixed on the bracket, and a bracket; the top of the compressed air distribution pipe is connected to a compressed air main pipe for introducing compressed air; a long sliding opening is opened on the bracket; a plurality of air nozzles for jetting water to the filament bundle are slidably suspended and arranged in the sliding opening; each of the air nozzles is connected to the compressed air distribution pipe through a compressed air branch pipe.

[0004] The moisture removal device in the above-mentioned case can only simply remove moisture from the filament bundle through gas, which not only results in incomplete moisture removal, but also causes the water stains removed from the filament bundle to drip everywhere and pollute the environment. At the same time, when the moisture on the filament bundle is removed by blowing air, impurities and dust in the gas can also be easily blown onto the filament bundle, which can easily pollute the filament bundle and reduce the effect of moisture removal. Summary of the invention

[0005] The object of the present invention is to provide a device for removing moisture from carbon fiber precursor to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a carbon fiber precursor moisture removal device, comprising two support plates, mounting blocks are installed on opposite sides of the two support plates, the two mounting blocks are fixedly connected by an air guide shell, a plurality of connecting blocks are installed at the bottom of the air guide shell, a moisture removal frame is installed at the bottom of the connecting block, the two support plates are fixedly connected by a collecting shell, and two rotating cylinders are arranged inside the moisture removal frame.

[0007] Preferably, a rotating shaft is rotatably connected to the rotating cylinder in the groove on the right side of the inner wall of the moisture removal frame and corresponding to the position of the rotating cylinder through a bearing, the left end of the rotating shaft is fixedly connected to the right end of the rotating cylinder, and a fixing column is installed on the left side of the rotating cylinder, and the left side of the fixing column passes through the moisture removal frame and extends to the outside thereof.

[0008] Preferably, an annular heating block is installed on the left side of the inner wall of the rotating cylinder, a temperature sensor is installed on the right side of the inner wall of the rotating cylinder, and a plurality of air holes are opened on the surface of the rotating cylinder.

[0009] Preferably, a fixed block is installed on the left side of the moisture removal frame, a connecting head is installed on the bottom of the fixed block, the top of the connecting head is connected to the air guide shell through an air guide pipe, and a transmission pipe is installed on the right side and bottom of the connecting head. The left side of the fixed column and the left side of the rotating cylinder are provided with mutually connected through grooves, and the end of the transmission pipe away from the connecting head passes through the through groove, the moisture removal frame and the rotating cylinder in sequence and extends to the interior of the rotating cylinder.

[0010] Preferably, a concave plate is installed on the front of the moisture removal frame, and two guide rollers are arranged on the inner wall of the concave plate. Positioning rollers are rotatably connected to the left and right sides of the inner wall of the moisture removal frame and located on the front side of the rotating cylinder through bearings. A concave block is arranged on the top of the positioning roller, and extrusion rollers are rotatably connected to the left and right sides of the inner wall of the concave block through bearings.

[0011] Preferably, a fixed shell connected to the moisture removal frame is installed on the top of the moisture removal frame, a movable plate is provided on the inner wall of the fixed shell, two blocks are installed on the inner wall of the fixed shell and at the bottom of the movable plate, a positioning rod is installed on the top of the block, the top of the positioning rod passes through the movable plate and extends to the outside thereof, and the top of the positioning rod is fixedly connected to the top of the inner wall of the fixed shell.

[0012] Preferably, a buffer spring is sleeved on the surface of the positioning rod, and an adjusting block is installed at the bottom of the movable plate. The bottom of the adjusting block passes through the fixed shell and the moisture removal frame from top to bottom in sequence and extends to the interior of the moisture removal frame. The bottom of the adjusting block is fixedly connected to the top of the concave block, and an opening is opened at the bottom of the moisture removal frame and corresponding to the position of the extrusion roller.

[0013] Preferably, a hair dryer is installed on the top of the air guide shell, a connecting shell is installed on the left side of the top of the air guide shell, a filter is provided at the bottom of the inner wall of the connecting shell, the top of the filter passes through the connecting shell and extends to the outside thereof where a sealing plate is installed, iron blocks are installed on the left and right sides of the bottom of the sealing plate, a slot is provided at the top of the connecting shell and corresponding to the position of the iron block, the bottom of the iron block passes through the slot and extends to the inside thereof, and a magnet that attracts the iron block is installed at the bottom of the inner wall of the slot.

[0014] Preferably, a top plate is provided at the bottom of the support plate, a mounting groove is provided at the top of the top plate, an adjusting groove connected to the mounting groove is provided at the bottom of the support plate, a servo motor is installed at the bottom of the inner wall of the mounting groove, the top of the servo motor output shaft passes through the mounting groove and the adjusting groove in sequence from bottom to top and extends to the inside of the adjusting groove, a threaded rod is installed at the top of the servo motor output shaft, a threaded block is threadedly connected to the surface of the threaded rod, the surface of the threaded block is fixedly connected to the inner wall of the adjusting groove, stabilizing blocks are installed on the left and right sides of the inner wall of the mounting groove, the top of the stabilizing block passes through the mounting groove, the adjusting groove and the threaded block in sequence from bottom to top and extends to the outside of the threaded block, the tops of the two stabilizing blocks are fixedly connected by a reinforcement block, and the groove at the bottom of the reinforcement block is rotatably connected to the threaded rod through a bearing.

[0015] The method for removing moisture from carbon fiber precursor specifically comprises the following steps: S1. Adjusting the height: According to the height of the tow transmission, the position of the moisture removal frame is adjusted so that the moisture removal frame and the tow are at the same level. The servo motor is started, and the servo motor 34 drives the threaded rod to rotate through the output shaft. The threaded rod drives the threaded block and the support plate 1 to move upward, and the support plate drives the moisture removal frame to move upward, so that the tow is exactly located between the two guide rollers on the same side, and the adjustment is completed. S2, primary water removal: the tow passes through two guide rollers on the same side from front to back and enters the interior of the water removal frame. The elastic force of the buffer spring causes the squeezing roller to squeeze the tow downward, so that the tow is squeezed by the squeezing roller and the positioning roller, so that the water in the tow is initially removed, and the squeezed water falls into the collection shell through the opening for collection; S3. Secondary moisture removal: The filament bundle with primary moisture removal moves backward to the position between the two rotating drums, so that the filament bundle drives the rotating drum to rotate, and the exhaust fan and the annular heating block are started. The gas passes through the filter and enters the air guide shell, and then is transferred to the transmission pipe through the air guide pipe and the connector, and enters the interior of the rotating drum through the transmission pipe, so that the annular heating block in the rotating drum heats the gas, and the heated gas is ejected through the air vents, thereby performing secondary removal of moisture on the filament bundle.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention realizes a carbon fiber precursor moisture removal device through the mutual cooperation of a mounting block, an air guide shell, a connecting block, a moisture removal frame, a collecting shell, a rotating cylinder, a fixed column, an annular heating block, a temperature sensor, an air vent, a fixed block, a connecting head, an air guide pipe, a transmission pipe, a through groove, a concave plate, a guide roller, a positioning roller, a through port, a concave block, an extrusion roller, a fixed shell, a movable plate, a stopper, a positioning rod, a buffer spring, an adjusting block, a blower, a connecting shell and a filter screen, so as to facilitate the removal of moisture from the tow and achieve the effect of secondary moisture removal, making the removal more thorough, and conveniently collecting the water stains squeezed out of the water to prevent the water stains from dripping everywhere and causing pollution to the environment, and conveniently filtering the impurities in the moisture removal gas to prevent the impurities in the gas from adhering to the tow and causing pollution to the tow, thereby improving the practicality.

[0017] 2. The present invention facilitates the removal of the filter screen for cleaning and maintenance through the mutual cooperation of the sealing plate, the iron block, the slot and the magnet, thereby improving the filtering effect of the filter screen.

[0018] 3. The present invention facilitates the adjustment of the height of the entire device during use through the mutual coordination of the top plate, the mounting slot, the adjustment slot, the servo motor, the threaded rod, the threaded block, the stabilizing block and the reinforcement block, thereby facilitating the adaptation to the transmission of wire bundles at different heights and improving the applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the moisture removal frame, the connector, the air guide shell, the concave plate and the fixed shell of the present invention; Figure 3 It is a structural cross-sectional view of the front view of the present invention; Figure 4 It is a structural cross-sectional view of the moisture removal frame, the rotating cylinder, the connector and the transmission shell of the present invention; Figure 5 The structural sections and diagrams of the moisture removal frame, squeezing roller, fixed shell and side view of the adjustment block of the present invention; Figure 6 It is a structural cross-sectional view of the front view of the connection shell, the filter screen, the sealing plate and the magnet of the present invention; Figure 7 It is a structural cross-sectional view of the front view of the support plate, top plate, mounting groove, adjustment groove and reinforcement block of the present invention.

[0020] In the figure: 1 support plate, 2 mounting block, 3 air guide shell, 4 connecting block, 5 moisture removal frame, 6 collection shell, 7 rotating cylinder, 8 fixed column, 9 annular heating block, 10 temperature sensor, 11 air vent, 12 fixed block, 13 connector, 14 air guide pipe, 15 transmission pipe, 16 through groove, 17 concave plate, 18 guide roller, 19 positioning roller, 100 through mouth, 101 concave block, 20 squeezing roller, 21 fixed shell, 22 moving plate, 23 stopper, 24 positioning rod, 25 buffer spring, 26 adjustment block, 27 blower, 28 connecting shell, 29 filter screen, 210 sealing plate, 211 iron block, 212 slot, 213 magnet, 31 top plate, 32 mounting groove, 33 adjustment groove, 34 servo motor, 35 threaded rod, 36 threaded block, 37 stabilizing block, 38 reinforcement block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0022] See also Figure 1-7 The carbon fiber precursor moisture removal device comprises two support plates 1, and the two support plates 1 are fixedly connected with mounting blocks 2 on opposite sides, and the two mounting blocks 2 are fixedly connected through an air guide shell 3, and the bottom of the air guide shell 3 is fixedly connected with a plurality of connecting blocks 4, and the bottom of the connecting blocks 4 is fixedly connected with a moisture removal frame 5, and the two support plates 1 are fixedly connected with a collecting shell 6, and two rotating cylinders 7 are arranged inside the moisture removal frame 5.

[0023] A top plate 31 is provided at the bottom of the support plate 1, the top of the top plate 31 contacts the bottom of the support plate 1, a mounting groove 32 is provided at the top of the top plate 31, an adjusting groove 33 connected to the mounting groove 32 is provided at the bottom of the support plate 1, a servo motor 34 is installed at the bottom of the inner wall of the mounting groove 32, the servo motor 34 is a forward and reverse motor with a self-locking function, the top end of the output shaft of the servo motor 34 passes through the mounting groove 32 and the adjusting groove 33 from bottom to top and extends to the inside of the adjusting groove 33, and the servo motor 34 output shaft A threaded rod 35 is installed at the top of the output shaft, and a threaded block 36 is threadedly connected to the surface of the threaded rod 35. The surface of the threaded block 36 is fixedly connected to the inner wall of the adjusting groove 33. Stabilizing blocks 37 are installed on the left and right sides of the inner wall of the mounting groove 32. The top of the stabilizing block 37 passes through the mounting groove 32, the adjusting groove 33 and the threaded block 36 from bottom to top and extends to the outside of the threaded block 36. The tops of the two stabilizing blocks 37 are fixedly connected by a reinforcement block 38, and the groove at the bottom of the reinforcement block 38 is rotatably connected to the threaded rod 35 through a bearing.

[0024] Through the mutual cooperation of the top plate 31, the mounting slot 32, the adjustment slot 33, the servo motor 34, the threaded rod 35, the threaded block 36, the stabilizing block 37 and the reinforcing block 38, it is convenient to adjust the height of the entire device when in use, so as to facilitate the adaptation to the wire bundles transmitted at different heights and improve the applicability.

[0025] Furthermore, a controller is fixedly connected to the left support plate 1, and a drain pipe which is interconnected with the collecting shell 6 is fixedly connected to the bottom thereof, and a valve is provided on the drain pipe.

[0026] A rotating shaft is rotatably connected to the rotating cylinder 7 in the groove on the right side of the inner wall of the moisture removal frame 5 and corresponding to the position of the rotating cylinder 7 through a bearing. The left end of the rotating shaft is fixedly connected to the right end of the rotating cylinder 7. A fixed column 8 is fixedly connected to the left side of the rotating cylinder 7. The left side of the fixed column 8 penetrates the moisture removal frame 5 and extends to the outside thereof. An annular heating block 9 is fixedly connected to the left side of the inner wall of the rotating cylinder 7. A temperature sensor 10 is fixedly connected to the right side of the inner wall of the rotating cylinder 7. A plurality of air holes 11 are provided on the surface of the rotating cylinder 7.

[0027] Furthermore, by connecting the rotating shaft and the rotating drum 7, the rotating drum 7 can be driven by the filament bundle to rotate, thereby reducing the friction generated when the filament bundle moves and contacts with the filament bundle.

[0028] Furthermore, the temperature in the rotating drum 7 is sensed by the temperature sensor 10 to prevent the high temperature of the annular heating block 9 in the rotating drum 7 from affecting the filament bundle, and the heating temperature of the annular heating block 9 is controlled by the controller.

[0029] Furthermore, an annular block is fixedly connected to the surface of the fixed column 8, and an annular groove adapted to the annular block is opened inside the moisture removal frame 5 and at the position corresponding to the annular block. The side of the annular block close to the annular groove penetrates the annular groove and extends to the inside to rotate and contact with the inner wall of the annular groove. By providing the annular block and the annular groove, the stability of the fixed column 8 during rotation is improved.

[0030] A fixed block 12 is fixedly connected to the left side of the moisture removal frame 5, a connecting head 13 is fixedly connected to the bottom of the fixed block 12, the top of the connecting head 13 is connected to the air guide shell 3 through an air guide pipe 14, a transmission pipe 15 is fixedly connected to the right side and the bottom of the connecting head 13, and a through groove 16 that is interconnected is provided on the left side of the fixed column 8 and the left side of the rotating cylinder 7, and an end of the transmission pipe 15 away from the connecting head 13 passes through the through groove 16, the moisture removal frame 5 and the rotating cylinder 7 in sequence and extends to the interior of the rotating cylinder 7.

[0031] A concave plate 17 is fixedly connected to the front of the moisture removal frame 5, and two guide rollers 18 are arranged on the inner wall of the concave plate 17. The left and right sides of the guide rollers 18 are rotatably connected to the bearings on the inner wall of the concave plate 17 through a rotating shaft. Positioning rollers 19 are rotatably connected to the left and right sides of the inner wall of the moisture removal frame 5 and located on the front side of the rotating cylinder 7 through bearings. A concave block 101 is arranged on the top of the positioning roller 19, and the left and right sides of the inner wall of the concave block 101 are rotatably connected to squeezing rollers 20 through bearings.

[0032] Furthermore, by providing the guide roller 18, the effect of guiding the filament bundle is achieved.

[0033] The top of the moisture removal frame 5 is fixedly connected with a fixed shell 21 which is interconnected with the fixed shell 21. A movable plate 22 is arranged on the inner wall of the fixed shell 21. The surface of the movable plate 22 is in sliding contact with the inner wall of the fixed shell 21. Two stoppers 23 are fixedly connected on the inner wall of the fixed shell 21 and at the bottom of the movable plate 22. The top of the stopper 23 is in contact with the bottom of the movable plate 22. A positioning rod 24 is fixedly connected to the top of the stopper 23. The top of the positioning rod 24 passes through the movable plate 22 and extends to the outside thereof. The top of the positioning rod 24 is fixedly connected to the top of the inner wall of the fixed shell 21. A buffer spring 25 is sleeved on the surface of the positioning rod 24. An adjusting block 26 is fixedly connected to the bottom of the movable plate 22. The bottom of the adjusting block 26 passes through the fixed shell 21 and the moisture removal frame 5 from top to bottom in sequence and extends to the inside of the moisture removal frame 5. The bottom of the adjusting block 26 is fixedly connected to the top of the concave block 101. A through opening 100 is provided at the bottom of the moisture removal frame 5 and at the position corresponding to the squeezing roller 20.

[0034] Specifically, when the filament bundle moves to the position between the squeezing roller 20 and the positioning roller 19, the filament bundle drives the squeezing roller 20 to move upward, and the squeezing roller 20 drives the movable plate 22 to move upward through the adjusting block 26, so that the movable plate 22 squeezes the buffer spring 25 upward to move. The elastic force of the buffer spring 25 increases the squeezing force exerted downward by the squeezing roller 20 on the filament bundle, thereby facilitating the squeezing of moisture in the filament bundle.

[0035] A hair dryer 27 is fixedly connected to the top of the air guide shell 3, and the hair dryer 27 is connected to the air guide shell 3 through a pipeline. A connecting shell 28 is fixedly connected to the left side of the top of the air guide shell 3, and the left side of the hair dryer 27 is connected to the connecting shell 28 through an air intake pipe. A filter screen 29 is arranged at the bottom of the inner wall of the connecting shell 28, and the side of the filter screen 29 close to the inner wall of the connecting shell 28 is in contact with the inner wall of the connecting shell 28. The top of the filter screen 29 penetrates the connecting shell 28 and extends to the outside thereof and is fixedly connected with a sealing plate 210, and the bottom of the sealing plate 210 is in contact with the top of the connecting shell 28. The left and right sides of the bottom of the sealing plate 210 are fixedly connected with an iron block 211, and a slot 212 is provided at the top of the connecting shell 28 and at the position corresponding to the iron block 211, and the bottom of the iron block 211 penetrates the slot 212 and extends to the inside thereof, and the bottom of the inner wall of the slot 212 is fixedly connected with a magnet 213 that attracts the iron block 211.

[0036] Specifically, the sealing plate 210 is pulled upward, and the sealing plate 210 drives the iron block 211 to move upward, so that the iron block 211 is separated from the magnet 213 and the slot 212 respectively. The sealing plate 210 drives the filter screen 29 to be pulled out from the connecting shell 28 to complete the disassembly of the filter screen 29, making it convenient to clean the filter screen 29.

[0037] Through the cooperation between the sealing plate 210 , the iron block 211 , the slot 212 and the magnet 213 , the filter screen 29 can be easily disassembled for cleaning and maintenance, thereby improving the filtering effect of the filter screen 29 .

[0038] Furthermore, the servo motor 34, the annular heating block 9, the temperature sensor 10 and the hair dryer 4 are electrically connected to the controller respectively, and the control circuit can be implemented by simple programming by technicians in this field. This is common knowledge in this field and will not be elaborated on here.

[0039] Through the cooperation of the mounting block 2, the air guide shell 3, the connecting block 4, the moisture removal frame 5, the collecting shell 6, the rotating cylinder 7, the fixing column 8, the annular heating block 9, the temperature sensor 10, the air vent 11, the fixing block 12, the connecting head 13, the air guide pipe 14, the transmission pipe 15, the through groove 16, the concave plate 17, the guide roller 18, the positioning roller 19, the through port 100, the concave block 101, the squeezing roller 20, the fixing shell 21, the moving plate 22, the stopper 23, the positioning rod 24, the buffer spring 25, the adjusting block 26, the blower 27, the connecting shell 28 and the filter screen 29, a device for removing moisture from carbon fiber precursor is realized, which is convenient for removing moisture from the tow and has the effect of secondary moisture removal, making the removal more thorough, and convenient for collecting the water stains squeezed out of the water to avoid the water stains dripping everywhere to pollute the environment, and convenient for filtering the impurities in the moisture removal gas to avoid the impurities in the gas adhering to the tow and polluting the tow, thereby improving the practicality.

[0040] The method for removing moisture from carbon fiber precursor specifically comprises the following steps: S1. Adjust the height: according to the height of the filament bundle transmission, adjust the position of the moisture removal frame 5 so that the moisture removal frame 5 and the filament bundle are at the same horizontal height, start the servo motor 34, the servo motor 34 drives the threaded rod 35 to rotate through the output shaft, the threaded rod 35 drives the threaded block 36 and the support plate 1 to move upward, the support plate 1 drives the moisture removal frame 5 to move upward, so that the filament bundle is exactly located between the two guide rollers 18 on the same side, and the adjustment is completed.

[0041] S2. Primary moisture removal: the filament bundle enters the interior of the moisture removal frame 5 from front to back through two guide rollers 18 located on the same side. The elastic force of the buffer spring 25 causes the squeezing roller 20 to squeeze the filament bundle downward, so that the filament bundle is squeezed by the squeezing roller 20 and the positioning roller 19, so that the moisture in the filament bundle is preliminarily removed, and the squeezed water falls into the collecting shell 6 through the through opening 100 for collection.

[0042] S3. Secondary moisture removal: the filament bundle from which moisture has been removed once moves backward to the position between the two rotating drums 7, so that the filament bundle drives the rotating drum 7 to rotate, and the exhaust fan 27 and the annular heating block 9 are started. The gas passes through the filter screen 29 and enters the air guide shell 3, and then is transferred to the transmission pipe 15 through the air guide pipe 14 and the connector 13. The gas enters the interior of the rotating drum 7 through the transmission pipe 15, so that the annular heating block 9 in the rotating drum 7 heats the gas, and the heated gas is ejected through the air vent 11, thereby performing secondary removal of moisture on the filament bundle.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for removing moisture from carbon fiber precursor, characterized in that: The invention comprises two support plates (1), each of which is provided with a mounting block (2) on one side opposite to the other of the two support plates (1), the two mounting blocks (2) being fixedly connected via an air guide shell (3), a plurality of connection blocks (4) being installed at the bottom of the air guide shell (3), a moisture removal frame (5) being installed at the bottom of the connection block (4), the two support plates (1) being fixedly connected via a collection shell (6), and two rotating cylinders (7) being arranged inside the moisture removal frame (5).

2. The carbon fiber precursor moisture removal device according to claim 1, characterized in that: A rotating shaft is rotatably connected to the rotating cylinder (7) in a groove on the right side of the inner wall of the moisture removal frame (5) and at a position corresponding to the rotating cylinder (7) via a bearing; the left end of the rotating shaft is fixedly connected to the right end of the rotating cylinder (7); a fixing column (8) is installed on the left side of the rotating cylinder (7); the left side of the fixing column (8) penetrates the moisture removal frame (5) and extends to the outside thereof.

3. The carbon fiber precursor moisture removal device according to claim 2, characterized in that: An annular heating block (9) is installed on the left side of the inner wall of the rotating cylinder (7), a temperature sensor (10) is installed on the right side of the inner wall of the rotating cylinder (7), and a plurality of air holes (11) are provided on the surface of the rotating cylinder (7).

4. The carbon fiber precursor moisture removal device according to claim 3, characterized in that: A fixing block (12) is installed on the left side of the moisture removal frame (5), a connector (13) is installed on the bottom of the fixing block (12), the top of the connector (13) is connected to the air guide shell (3) via an air guide tube (14), a transmission tube (15) is installed on the right side and the bottom of the connector (13), a through groove (16) communicating with each other is provided on the left side of the fixing column (8) and the left side of the rotating cylinder (7), and an end of the transmission tube (15) away from the connector (13) passes through the through groove (16), the moisture removal frame (5) and the rotating cylinder (7) in sequence and extends to the interior of the rotating cylinder (7).

5. The carbon fiber precursor moisture removal device according to claim 4, characterized in that: A concave plate (17) is installed on the front of the moisture removal frame (5), and two guide rollers (18) are arranged on the inner wall of the concave plate (17). Positioning rollers (19) are rotatably connected to the left and right sides of the inner wall of the moisture removal frame (5) and located in front of the rotating cylinder (7) via bearings. A concave block (101) is arranged on the top of the positioning roller (19), and squeezing rollers (20) are rotatably connected to the left and right sides of the inner wall of the concave block (101) via bearings.

6. The carbon fiber precursor moisture removal device according to claim 5, characterized in that: A fixed shell (21) in communication with the moisture removal frame (5) is installed on the top of the moisture removal frame (5); a movable plate (22) is arranged on the inner wall of the fixed shell (21); two stoppers (23) are installed on the inner wall of the fixed shell (21) and at the bottom of the movable plate (22); a positioning rod (24) is installed on the top of the stopper (23); the top end of the positioning rod (24) passes through the movable plate (22) and extends to the outside thereof; the top end of the positioning rod (24) is fixedly connected to the top of the inner wall of the fixed shell (21).

7. The carbon fiber precursor moisture removal device according to claim 6, characterized in that: A buffer spring (25) is sleeved on the surface of the positioning rod (24); an adjustment block (26) is installed at the bottom of the movable plate (22); the bottom of the adjustment block (26) passes through the fixed shell (21) and the moisture removal frame (5) from top to bottom in sequence and extends into the interior of the moisture removal frame (5); the bottom of the adjustment block (26) is fixedly connected to the top of the concave block (101); and a through opening (100) is provided at the bottom of the moisture removal frame (5) and at a position corresponding to the squeezing roller (20).

8. The carbon fiber precursor moisture removal device according to claim 7, characterized in that: A blower (27) is installed on the top of the air guide shell (3), a connecting shell (28) is installed on the left side of the top of the air guide shell (3), a filter screen (29) is arranged at the bottom of the inner wall of the connecting shell (28), the top of the filter screen (29) penetrates the connecting shell (28) and extends to the outside thereof to be installed with a sealing plate (210), iron blocks (211) are installed on both the left and right sides of the bottom of the sealing plate (210), a slot (212) is provided at the top of the connecting shell (28) and at a position corresponding to the iron block (211), the bottom of the iron block (211) penetrates the slot (212) and extends to the inside thereof, and a magnet (213) that attracts the iron block (211) is installed at the bottom of the inner wall of the slot (212).

9. The carbon fiber precursor moisture removal device according to claim 1, characterized in that: A top plate (31) is provided at the bottom of the support plate (1), a mounting groove (32) is provided at the top of the top plate (31), an adjusting groove (33) which is interconnected with the mounting groove (32) is provided at the bottom of the support plate (1), a servo motor (34) is installed at the bottom of the inner wall of the mounting groove (32), the top end of the output shaft of the servo motor (34) passes through the mounting groove (32) and the adjusting groove (33) in sequence from bottom to top and extends into the interior of the adjusting groove (33), a threaded rod (35) is installed at the top end of the output shaft of the servo motor (34), and the threaded rod (35) is installed at the top end of the output shaft of the servo motor (34). 5) is threadedly connected to a threaded block (36), the surface of the threaded block (36) is fixedly connected to the inner wall of the adjustment groove (33), and stabilizing blocks (37) are installed on both the left and right sides of the inner wall of the installation groove (32), the top of the stabilizing block (37) passes through the installation groove (32), the adjustment groove (33) and the threaded block (36) from bottom to top and extends to the outside of the threaded block (36), the tops of the two stabilizing blocks (37) are fixedly connected by a reinforcing block (38), and the groove at the bottom of the reinforcing block (38) is rotatably connected to the threaded rod (35) through a bearing.

10. A method for removing moisture from carbon fiber precursor, characterized in that: The specific steps include: S1. Adjusting the height: adjusting the position of the moisture removal frame (5) according to the height of the filament bundle transmission, so that the moisture removal frame (5) and the filament bundle are located at the same horizontal height, starting the servo motor (34), the servo motor 34 drives the threaded rod (35) to rotate through the output shaft, the threaded rod (35) drives the threaded block (36) and the support plate 1 to move upward, and the support plate (1) drives the moisture removal frame (5) to move upward, so that the filament bundle is exactly located between the two guide rollers (18) on the same side, and the adjustment is completed; S2, primary water removal: the tow passes through two guide rollers (18) on the same side from front to back and enters the interior of the water removal frame (5), and the elastic force of the buffer spring (25) causes the squeezing roller (20) to squeeze the tow downward, so that the tow is squeezed by the squeezing roller (20) and the positioning roller (19), so that the water in the tow is initially removed, and the squeezed water falls into the collection shell (6) through the opening (100) for collection; S3. Secondary moisture removal: The filament bundle from which moisture has been removed once moves backward to a position between the two rotating cylinders (7), so that the filament bundle drives the rotating cylinder (7) to rotate, and the exhaust fan (27) and the annular heating block (9) are started. The gas passes through the filter screen (29) and enters the air guide shell (3). Then, the gas is transferred to the transmission pipe (15) through the air guide pipe (14) and the connector (13), and enters the interior of the rotating cylinder (7) through the transmission pipe (15). The annular heating block (9) in the rotating cylinder (7) heats the gas, and the heated gas is ejected through the air vent (11), thereby performing a secondary removal of moisture from the filament bundle.

Images