A wet-dry extrusion preparation device for cellulose fibers and its usage method

Abstract

The present invention discloses a wet-dry extrusion preparation device for cellulose fibers and its usage method, which relates to the technical field of wet-dry extrusion of fibers. It includes a dissolution kettle and a data acquisition module. A screw extruder is installed at the bottom of the dissolution kettle, a spinning box is installed at the output end of the screw extruder, and a nozzle is installed at the output end of the spinning box. In the present invention, the data acquisition module is used to respectively collect one or more of the temperature, pressure, flow rate, solvent concentration, and wind speed in the dissolution kettle, screw extruder, spinning box, nozzle, coagulation bath, cleaning chamber, and drying chamber, and send them to the processor module. The processor module can display the data through a touch display screen. At the same time, it can monitor whether there is data exceeding or lower than the preset threshold among numerous data through the threshold detection module, and then can automatically achieve precise control and monitoring of the production process through the PLC controller and the actuator, thereby achieving the effect of improving production efficiency and product quality.

Description

Technical Field

[0001] The present invention relates to the technical field of fiber wet-dry extrusion, and specifically to a cellulose fiber wet-dry extrusion preparation device and its usage method. Background Art

[0002] Cellulose is a macromolecular polysaccharide composed of glucose, insoluble in water and common organic solvents, and is the main component of plant cell walls. Cellulose is the most widely distributed and abundant polysaccharide in nature, accounting for more than 50% of the carbon content in the plant kingdom. The cellulose content in cotton is close to 100%, being the purest natural source of cellulose. The cellulose is prepared into the required fibers by using the wet-dry method.

[0003] The defects existing in the existing fiber wet-dry extrusion equipment are as follows:

[0004] 1. The patent document US09011739B2 discloses a method for continuously manufacturing polyimide fibers. However, in the manufacturing process in the above document, high requirements are imposed on the skills and experience of operators, and operators are required to monitor the status of various data in real time. Not only is the labor cost relatively high, but also the production efficiency and the stability of product quality are poor.

[0005] 2. The patent document US08709372B2 discloses carbon nanotube fibers spun from a wet tape. However, in the above document, the waste heat of the high-temperature gas in the drying chamber and other boxes cannot be frequently reused, which easily causes the technical problem of large energy inefficiency.

[0006] 3. The patent document JP2009144283A discloses a roller for winding liquids and wet-dry or dry-wet spinning methods. However, in the above document, the ejected filaments are not stretched and deformed in the air, but directly flow into the coagulation bath, and are stretched and deformed in the coagulation bath, which easily causes the technical problem of reduced spinning speed.

[0007] 4. The patent document CN112342632B discloses a coagulation device for high-speed wet-dry spinning. However, in the above document, the size of the wind speed cannot be automatically adjusted according to the collected wind speed data, which easily causes the technical problem of processing instability when stretching and deforming in the air. Summary of the Invention

[0008] The purpose of the present invention is to provide a cellulose fiber wet-dry extrusion preparation device and its usage method to solve the technical problems raised in the above background art.

[0009] To achieve the above object, the present invention provides the following technical solution: A cellulose fiber dry-wet extrusion preparation device, including a dissolution kettle and a data acquisition module. A screw extruder is installed at the bottom of the dissolution kettle. A spinning box is installed at the output end of the screw extruder. A nozzle is installed at the output end of the spinning box.

[0010] A group of fixed rods are installed on the outer wall of the screw extruder. A support rod is installed at the bottom of the fixed rod. A processing box is installed at the bottom of the support rod. A group of partition plates are installed on the inner wall of the processing box. A coagulation bath, a cleaning chamber and a drying chamber are arranged in the processing box through the partition plates, and the top of the coagulation bath corresponds to the bottom of the nozzle.

[0011] The data acquisition module respectively collects one or more of temperature, pressure, flow rate, solvent concentration and wind speed in the dissolution kettle, screw extruder, spinning box, nozzle, coagulation bath, cleaning chamber and drying chamber through sensors. The data acquisition module is electrically connected to a processor module. The processor module is respectively bidirectionally electrically connected to a touch display screen and a threshold detection module. The touch display screen is used to display information and input instructions by touching elements on the screen, and the touch display screen is installed in the middle of the front of the processing box. The threshold detection module is used to monitor whether there is any data exceeding or falling below a preset threshold among the numerous data obtained by the data acquisition module. The processor module is electrically connected to a PLC controller. The PLC controller is respectively electrically connected to an actuator and an alarm module. The actuators are respectively installed in the dissolution kettle, screw extruder, spinning box, nozzle, coagulation bath, cleaning chamber and drying chamber, and the alarm module is installed at the top of the front of the processing box.

[0012] Preferably, a raw material inlet is installed on one side of the top of the dissolution kettle. A sealing plate is installed at the top of the raw material inlet through a hinge. A solvent inlet is installed on the other side of the top of the dissolution kettle. A four-way flow valve is installed at one end of the solvent inlet. A first servo motor is installed in the middle of the top of the dissolution kettle. A stirring shaft is installed at the output end of the first servo motor. A number of stirring rods are installed on the outer wall of the stirring shaft. An electric heating block is installed on the outer side of the inner bottom wall of the dissolution kettle. An insulating layer is provided inside the outer shell of the dissolution kettle. The insulating layer is provided with an air inlet and an air outlet, and both the air inlet and the air outlet are installed on the back of the dissolution kettle. A solenoid valve is installed at the output end of the bottom of the dissolution kettle.

[0013] Preferably, a second servo motor is installed at one end of the screw extruder. A screw extrusion rod is installed at the output end of the second servo motor. A metering pump is installed inside the spinning box, and the metering pump is installed at the output end of the screw extruder. The output end of the metering pump is connected to a spinneret through a pipeline, and the filaments ejected from the spinneret enter the nozzle.

[0014] Preferably, a gradually expanding tube is installed through one side of the corridor, a porous exhaust plate is installed on one end of the inner wall of the gradually expanding tube, an aperture adjustment plate is installed in the middle of one side of the porous exhaust plate through a bearing, and holes of the same size are provided on the aperture adjustment plate and the porous exhaust plate, an outer wall of the aperture adjustment plate is provided with an arc-shaped rack, an arc-shaped through groove is provided on one side of the top of the gradually expanding tube, and the inner wall of the arc-shaped through groove is movably connected to the outer wall of the arc-shaped rack, a third servo motor is installed in the middle of the top of the gradually expanding tube, a transmission gear is installed at the output end of the third servo motor, and the outer wall of the transmission gear is meshed with the arc-shaped rack, and the other end of the gradually expanding tube is connected to the output end of the exhaust port through a pipe.

[0015] Preferably, the interior of the coagulation bath chamber is filled with a coagulation bath solvent, which consists of water, phosphoric acid and an organic solvent, the organic solvent includes one of dimethyl sulfoxide or dimethylformamide, wherein the organic solvent accounts for 25%-65% of the volume of the coagulation bath solvent, and the bottom of the inner wall of the coagulation bath chamber includes a first guide roller.

[0016] Preferably, a first conveying roller, a second conveying roller and a collecting roller are sequentially installed on the top of the processing box.

[0017] Preferably, a second guide roller is installed on the bottom wall of the cleaning chamber, a nozzle is movably connected to the top of the inner wall of the cleaning chamber, the input end of the nozzle is connected to a water pump through a pipe, the input end of the water pump is connected to a water tank through a pipe, and the bottom of the front of the cleaning chamber is connected to a circulating water storage chamber through a pipe.

[0018] Preferably, a top plate is installed on the top of the inner wall of the drying chamber, through holes are opened on both sides of the top of the top plate, a third guide roller is installed on the bottom of the inner wall of the drying chamber, a drying fan is installed on the front of the drying chamber, an air outlet is installed on the back of the drying chamber, and the air outlet is connected to the air inlet through a pipe.

[0019] Preferably, the working steps of the cellulose fiber dry and wet extrusion preparation device are as follows:

[0020] S1, using a data acquisition module to collect one or more of the temperature, pressure, flow rate, solvent concentration and wind speed in the dissolving kettle, screw extruder, spinning box, tunnel, coagulation bath room, cleaning room and drying room, and send them to the processor module;

[0021] S2. The processor module can display the data through the touch screen, and can monitor whether there is data exceeding or below the preset threshold value among the numerous data through the threshold detection module, and then can realize the precise control and monitoring of the production process through the PLC controller and the actuator automation;

[0022] S3, adding the raw materials and the solvent into the dissolving kettle according to the set ratio, mixing and stirring, fully dissolving, and forming a liquid crystal stock glue;

[0023] S4. Use a screw extruder to convey the stock solution glue into the spinning box, and eject the filaments through a spinneret and convey them into the duct;

[0024] S5. Through the settings of the duct, the tapered tube, and the coagulation bath, the filaments are stretched and deformed in the duct, which serves to extend the length of the stretching zone, and then move to the coagulation bath to undergo a chemical reaction to generate fibers;

[0025] S6. Convey the fibers generated by the chemical reaction in the coagulation bath to the cleaning chamber through the first conveying roller, spray the clear water in the water tank from the nozzle through a water pump, thereby removing the residual solvent and non-solvent on the surface of the fibers. The washed water is collected through the circulating water storage chamber to avoid waste of water resources. The drying chamber is used to dry the washed fibers and collect them through a collecting roller.

[0026] Preferably, the following steps are further included in S2:

[0027] S21. When the threshold detection module monitors that there are data exceeding or lower than the preset threshold among numerous data, it can display the positions of the data exceeding or lower than the preset threshold in real time through the touch display screen, and then start the alarm module through the PLC controller to remind the staff of the existing problems and improve the efficiency of detection and maintenance;

[0028] The following steps are further included in S5:

[0029] S51. The data acquisition module uses sensors to collect the temperature and wind speed in the duct in real time, and then sends instructions to the PLC controller through the processor module. The PLC controller controls the third servo motor to drive the transmission gear to rotate. The rotation of the transmission gear drives the arc rack to rotate, and then drives the aperture adjustment plate to rotate. The rotation of the aperture adjustment plate can adjust the size of the holes on the porous exhaust plate, thereby adjusting the wind speed and ensuring the processing stability of the filaments ejected from the spinneret in the duct;

[0030] The following steps are further included in S6:

[0031] S61. After the hot air generated by the drying fan dries the fibers, it is conveyed to the air inlet through the air outlet and the pipeline, enters the heat preservation layer through the air inlet, and fills the inside of the heat preservation layer to improve the heat preservation effect of the dissolving kettle. Thereby, the energy consumed by the electric heating block in the dissolving kettle can be reduced. The gas entering the heat preservation layer then enters the tapered tube through the settings of the exhaust port and the pipeline, and is discharged through the tapered tube and the porous exhaust plate, thereby enabling the reuse of the waste heat of the high-temperature gas in the drying chamber.

[0032] Compared with the prior art, the beneficial effects of the present invention are:

[0033] 1. The present invention uses a data acquisition module to collect one or more of the temperature, pressure, flow rate, solvent concentration, and wind speed in the dissolution kettle, screw extruder, spinning box, duct, coagulation bath, cleaning chamber, and drying chamber respectively, and sends them to the processor module. The processor module can display the data through a touch display screen. At the same time, it can monitor whether there is data exceeding or lower than the preset threshold among numerous data through a threshold detection module. Furthermore, it can automatically achieve precise control and monitoring of the production process through a PLC controller and an actuator, thereby achieving the effect of improving production efficiency and product quality;

[0034] 2. Through the settings of the heat preservation layer, air inlet, and exhaust outlet, after the hot air generated by the drying fan dries the fibers, it is transported to the air inlet through the air outlet and pipeline, and enters the heat preservation layer through the air inlet, filling the inside of the heat preservation layer, improving the heat preservation effect of the dissolution kettle. Furthermore, it can reduce the energy consumed by the electric heating block in the dissolution kettle. The gas entering the heat preservation layer then enters the expansion tube through the settings of the exhaust outlet and pipeline, and is discharged through the expansion tube and the porous exhaust plate. Furthermore, it can recycle the waste heat of the high-temperature gas in the drying chamber, playing a role in reducing energy consumption;

[0035] 3. Through the settings of the duct, expansion tube, and coagulation bath, the thin filaments ejected from the spinneret can be stretched and deformed in the air discharged through the expansion tube and the porous exhaust plate in the duct, playing a role in extending the length of the stretching zone, and then moving to the coagulation bath to undergo a chemical reaction to generate fibers, thereby achieving the effect of improving the spinning speed;

[0036] 4. The data acquisition module of the present invention uses sensors to collect the temperature and wind speed in the duct in real time. Then, through the processor module, an instruction is sent to the PLC controller. The PLC controller controls the third servo motor to drive the transmission gear to rotate. The rotation of the transmission gear drives the arc rack to rotate, and then drives the aperture adjustment plate to rotate. The rotation of the aperture adjustment plate can adjust the size of the holes on the porous exhaust plate, thereby adjusting the wind speed and ensuring the processing stability of the thin filaments ejected from the spinneret in the duct. Description of the Drawings

[0037] Figure 1 is a schematic diagram of the system flow of the present invention;

[0038] Figure 2 is a schematic three-dimensional structure diagram of the whole of the present invention;

[0039] Figure 3 is a schematic side sectional structure diagram of the whole of the present invention;

[0040] Figure 4 is a schematic front sectional structure diagram of the whole of the present invention;

[0041] Figure 5For the present invention Figure 4 Schematic structural diagram of part A in

[0042] Figure 6 For the present invention Figure 4 Schematic structural diagram of part B in

[0043] Figure 7 Schematic structural diagram of the aperture adjustment plate of the present invention

[0044] Figure 8 Schematic structural diagram of the heat insulation layer of the present invention

[0045] Figure 9 Schematic diagram of the working process of the present invention

[0046] In the figure: 1, dissolving kettle; 2, screw extruder; 3, spinning box; 4, duct; 5, fixed rod; 6, support rod; 7, treatment box; 8, partition board; 9, coagulation bath; 10, cleaning chamber; 11, drying chamber; 12, data acquisition module; 13, processor module; 14, touch display screen; 15, threshold detection module; 16, PLC controller; 17, actuator; 18, alarm module; 19, raw material inlet; 20, sealing plate; 21, solvent inlet; 22, four-way flow valve; 23, first servo motor; 24, stirring shaft; 25, stirring rod; 26, electric heating block; 27, heat insulation layer; 28, air inlet; 29, exhaust port; 30, second servo motor; 31, screw extrusion rod; 32, metering pump; 33, spinneret; 34, tapered tube; 35, porous exhaust plate; 36, aperture adjustment plate; 37, arc rack; 38, arc through groove; 39, third servo motor; 40, driving gear; 41, first guiding roller; 42, first conveying roller; 43, second conveying roller; 44, collecting roller; 45, second guiding roller; 46, nozzle; 47, water pump; 48, water tank; 49, circulating water storage chamber; 50, top plate; 51, through hole; 52, third guiding roller; 53, drying fan; 54, air outlet; 55, solenoid valve. Detailed implementation manners

[0047] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0048] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0049] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "equipped with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] Example 1: Please refer to Figure 1 、 Figure 2 and Figure 4 , an embodiment provided by the present invention: A cellulose fiber wet-dry extrusion preparation device, including a dissolution kettle 1 and a data acquisition module 12. A screw extruder 2 is installed at the bottom of the dissolution kettle 1. The output end of the screw extruder 2 is installed with a spinning box 3, and the output end of the spinning box 3 is installed with a duct 4;

[0051] A group of fixed rods 5 are installed on the outer wall of the screw extruder 2. The bottom of the fixed rod 5 is installed with a support rod 6. The bottom of the support rod 6 is installed with a treatment box 7. A group of partition plates 8 are installed on the inner wall of the treatment box 7. A coagulation bath 9, a cleaning chamber 10 and a drying chamber 11 are arranged in the inner wall of the treatment box 7 through the partition plates 8, and the upper part of the coagulation bath 9 corresponds to the bottom of the duct 4;

[0052] The data acquisition module 12 respectively collects one or more of temperature, pressure, flow rate, solvent concentration, and wind speed in the dissolution kettle 1, screw extruder 2, spinning box 3, duct 4, coagulation bath 9, cleaning chamber 10, and drying chamber 11 through sensors. The data acquisition module 12 is electrically connected to a processor module 13. The processor module 13 is respectively bidirectionally electrically connected to a touch display screen 14 and a threshold detection module 15. The touch display screen 14 is used to display information and input instructions by touching elements on the screen, and the touch display screen 14 is installed in the middle of the front of the processing box 7. The threshold detection module 15 is used to monitor whether there is any data among the numerous data obtained by the data acquisition module 12 that exceeds or is lower than a preset threshold. The processor module 13 is electrically connected to a PLC controller 16. The PLC controller 16 is respectively electrically connected to an actuator 17 and an alarm module 18. The actuator 17 is respectively installed in the dissolution kettle 1, screw extruder 2, spinning box 3, duct 4, coagulation bath 9, cleaning chamber 10, and drying chamber 11, and the alarm module 18 is installed at the top of the front of the processing box 7;

[0053] Further, by using the data acquisition module 12 to respectively collect one or more of temperature, pressure, flow rate, solvent concentration, and wind speed in the dissolution kettle 1, screw extruder 2, spinning box 3, duct 4, coagulation bath 9, cleaning chamber 10, and drying chamber 11 and sending them to the processor module 13, the processor module 13 can display the data through the touch display screen 14. At the same time, it can monitor whether there is any data among the numerous data that exceeds or is lower than the preset threshold through the threshold detection module 15. Furthermore, it can automatically achieve precise control and monitoring of the production process through the PLC controller 16 and the actuator 17, thereby achieving the effect of improving production efficiency and product quality;

[0054] When the threshold detection module 15 monitors that there is data among the numerous data that exceeds or is lower than the preset threshold, it can display the position of the data that exceeds or is lower than the preset threshold in real time through the touch display screen 14, and then start the alarm module 18 through the PLC controller 16 to remind the staff of the existing problems and improve the efficiency of detection and repair.

[0055] Embodiment 2: Please refer to Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 8, An embodiment provided by the present invention: One side of the top of the dissolution kettle 1 is provided with a raw material inlet 19. The top of the raw material inlet 19 is installed with a sealing plate 20 through a hinge. The other side of the top of the dissolution kettle 1 is provided with a solvent inlet 21. One end of the solvent inlet 21 is installed with a four-way flow valve 22. The middle of the top of the dissolution kettle 1 is installed with a first servo motor 23. The output end of the first servo motor 23 is installed with a stirring shaft 24. A number of groups of stirring rods 25 are installed on the outer wall of the stirring shaft 24. The outer bottom wall of the dissolution kettle 1 is installed with an electric heating block 26. The inner part of the outer shell of the dissolution kettle 1 is provided with a heat preservation layer 27. The heat preservation layer 27 is provided with an air inlet 28 and an air outlet 29. And both the air inlet 28 and the air outlet 29 are installed on the back of the dissolution kettle 1. The output end of the bottom of the dissolution kettle 1 is installed with a solenoid valve 55;

[0056] One side of the passage 4 is installed with a tapered pipe 34 in a penetrating manner. One end of the inner wall of the tapered pipe 34 is installed with a porous exhaust plate 35. In the middle of one side of the porous exhaust plate 35, a pore diameter adjusting plate 36 is installed through a bearing. And the pore diameter adjusting plate 36 and the porous exhaust plate 35 are provided with holes of the same size. The outer wall of the pore diameter adjusting plate 36 is provided with an arc-shaped rack 37. One side of the top of the tapered pipe 34 is provided with an arc-shaped through groove 38. And the inner wall of the arc-shaped through groove 38 is movably connected to the outer wall of the arc-shaped rack 37. The middle of the top of the tapered pipe 34 is installed with a third servo motor 39. The output end of the third servo motor 39 is installed with a transmission gear 40. And the outer wall of the transmission gear 40 meshes with the arc-shaped rack 37. The other end of the tapered pipe 34 is connected to the output end of the air outlet 29 through a pipeline;

[0057] The top of the inner wall of the drying chamber 11 is installed with a top plate 50. Both sides of the top of the top plate 50 are provided with through holes 51. The bottom of the inner wall of the drying chamber 11 is installed with a third guiding roller 52. The front of the drying chamber 11 is fitted with a drying fan 53. The back of the drying chamber 11 is installed with an air outlet 54. And the air outlet 54 is connected to the air inlet 28 through a pipeline;

[0058] Further, through the settings of the heat preservation layer 27, the air inlet 28 and the air outlet 29, after the hot air generated by the drying fan 53 dries the fibers, it is transported to the air inlet 28 through the air outlet 54 and the pipeline, and enters the heat preservation layer 27 through the air inlet 28, and fills the inside of the heat preservation layer 27, improving the heat preservation effect of the dissolution kettle 1. Furthermore, the energy consumed by the electric heating block 26 in the dissolution kettle 1 can be reduced. The gas entering the heat preservation layer 27 enters the tapered pipe 34 through the settings of the air outlet 29 and the pipeline, and is discharged through the tapered pipe 34 and the porous exhaust plate 35. Furthermore, the waste heat of the high-temperature gas in the drying chamber 11 can be reused, playing a role in reducing energy consumption.

[0059] Example 3: Please refer to Figure 2 , Figure 4 , Figure 6 andFigure 7 An embodiment provided by the present invention: A second servo motor 30 is installed at one end of the screw extruder 2, a screw extrusion rod 31 is installed at the output end of the second servo motor 30, a metering pump 32 is installed inside the spinning box 3, and the metering pump 32 is installed at the output end of the screw extruder 2. The output end of the metering pump 32 is connected to a spinneret 33 through a pipeline, and the fine filaments ejected from the spinneret 33 enter the channel 4;

[0060] An expansion tube 34 is installed through one side of the channel 4. One end of the inner wall of the expansion tube 34 is installed with a porous exhaust plate 35. In the middle of one side of the porous exhaust plate 35, a pore diameter adjusting plate 36 is installed through a bearing. The pore diameter adjusting plate 36 and the porous exhaust plate 35 are provided with holes of the same size. An arc-shaped rack 37 is arranged on the outer wall of the pore diameter adjusting plate 36. An arc-shaped through groove 38 is opened on one side of the top of the expansion tube 34, and the inner wall of the arc-shaped through groove 38 is movably connected to the outer wall of the arc-shaped rack 37. A third servo motor 39 is installed in the middle of the top of the expansion tube 34. A transmission gear 40 is installed at the output end of the third servo motor 39, and the outer wall of the transmission gear 40 meshes with the arc-shaped rack 37. The other end of the expansion tube 34 is connected to the output end of the exhaust port 29 through a pipeline;

[0061] The coagulation bath 9 is filled with a coagulation bath solvent, which is composed of water, phosphoric acid and an organic solvent. The organic solvent includes one of dimethyl sulfoxide or dimethylformamide. The organic solvent accounts for 25%-65% of the volume of the coagulation bath solvent. The bottom of the inner wall of the coagulation bath 9 includes a first guide roller 41;

[0062] Furthermore, through the settings of the channel 4, the expansion tube 34 and the coagulation bath 9, the fine filaments ejected from the spinneret 33 can be stretched and deformed in the air discharged through the expansion tube 34 and the porous exhaust plate 35 in the channel 4, so as to extend the length of the stretching zone, and then move to the coagulation bath 9 to undergo a chemical reaction to generate fibers, thereby achieving the effect of improving the spinning speed;

[0063] The data acquisition module 12 collects the temperature and wind speed in the channel 4 in real time through sensors, and then sends an instruction to the PLC controller 16 through the processor module 13. The PLC controller 16 controls the third servo motor 39 to drive the transmission gear 40 to rotate. The rotation of the transmission gear 40 drives the arc-shaped rack 37 to rotate, and then drives the pore diameter adjusting plate 36 to rotate. The rotation of the pore diameter adjusting plate 36 can adjust the size of the holes on the porous exhaust plate 35, thereby adjusting the wind speed and ensuring the processing stability of the fine filaments ejected from the spinneret 33 in the channel 4.

[0064] Example 4: Please refer to Figure 2 and Figure 3, an embodiment provided by the present invention: a first conveying roller 42, a second conveying roller 43 and a collecting roller 44 are successively installed on the top of the processing box 7;

[0065] A second guiding roller 45 is installed on the inner bottom wall of the cleaning chamber 10. The top of the inner wall of the cleaning chamber 10 is movably connected with a spray head 46. The input end of the spray head 46 is connected to a water pump 47 through a pipeline. The input end of the water pump 47 is connected to a water tank 48 through a pipeline, and the water tank 48 is installed on the front of the processing box 7. The bottom of the back of the cleaning chamber 10 is connected to a circulating water storage chamber 49 through a pipeline;

[0066] The top of the inner wall of the drying chamber 11 is installed with a top plate 50. Through holes 51 are opened on both sides of the top of the top plate 50. The bottom of the inner wall of the drying chamber 11 is installed with a third guiding roller 52. A drying fan 53 is fitted and installed on the front of the drying chamber 11. An air outlet 54 is installed on the back of the drying chamber 11, and the air outlet 54 is connected to an air inlet 28 through a pipeline;

[0067] Furthermore, the fiber generated by the chemical reaction in the coagulation bath 9 is conveyed into the cleaning chamber 10 through the first conveying roller 42. The clear water in the water tank 48 is sprayed out from the spray head 46 through the water pump 47, so as to remove the residual solvent and non-solvent on the surface of the fiber. The washed water flow is collected through the circulating water storage chamber 49 to avoid waste of water resources. The drying chamber 11 is used for drying the washed fiber and collecting it through the collecting roller 44.

[0068] Example 5: Please refer to Figure 9 , an embodiment provided by the present invention: the working steps of the cellulose fiber wet-dry extrusion preparation device are as follows:

[0069] S1. Use the data acquisition module 12 to collect one or more of the temperature, pressure, flow rate, solvent concentration and wind speed in the dissolution kettle 1, the screw extruder 2, the spinning box 3, the duct 4, the coagulation bath 9, the cleaning chamber 10 and the drying chamber 11 respectively, and send them to the processor module 13;

[0070] S2. The processor module 13 can display the data through the touch display screen 14, and at the same time can monitor whether there is data exceeding or lower than the preset threshold among numerous data through the threshold detection module 15, and then can automatically realize the precise control and monitoring of the production process through the PLC controller 16 and the actuator 17;

[0071] S3. Add the raw materials and solvents into the dissolution kettle 1 according to the set ratio for mixing and stirring to fully dissolve and form a liquid crystal state stock solution;

[0072] S4. Use the screw extruder 2 to convey the stock solution into the spinning box 3 and spray out the filaments through the spinneret 33 and convey them into the duct 4;

[0073] S5. Through the settings of the passage 4, the reducing pipe 34, and the solidification bath 9, the filaments are stretched and deformed within the passage 4, which serves to extend the length of the stretching zone, and then move to the solidification bath 9 to undergo a chemical reaction to form fibers.

[0074] S6. The fibers formed by the chemical reaction in the solidification bath 9 are conveyed into the cleaning chamber 10 by the first conveying roller 42. The clear water in the water tank 48 is sprayed out from the nozzle 46 by the water pump 47, thereby removing the residual solvents and non-solvents on the surface of the fibers. The washed water is collected through the circulating water storage chamber 49 to avoid wasting water resources. The drying chamber 11 is used to dry the washed fibers and collect them through the collecting roller 44.

[0075] In S2, the following steps are further included:

[0076] S21. When the threshold detection module 15 monitors that there are data exceeding or falling below the preset threshold among numerous data, it can display the positions of the data exceeding or falling below the preset threshold in real time through the touch display screen 14, and then start the alarm module 18 through the PLC controller 16 to remind the staff of the existing problems and improve the efficiency of detection and maintenance.

[0077] In S5, the following steps are further included:

[0078] S51. The data acquisition module 12 collects the temperature and wind speed inside the passage 4 in real time through sensors, and then sends instructions to the PLC controller 16 through the processor module 13. The PLC controller 16 controls the third servo motor 39 to drive the transmission gear 40 to rotate. The rotation of the transmission gear 40 drives the arc rack 37 to rotate, and then drives the aperture adjustment plate 36 to rotate. The rotation of the aperture adjustment plate 36 can adjust the size of the holes on the porous exhaust plate 35, thereby adjusting the wind speed and ensuring the processing stability of the filaments ejected from the spinneret 33 inside the passage 4.

[0079] In S6, the following steps are further included:

[0080] S61. After the hot air generated by the drying fan 53 dries the fibers, it is conveyed to the air inlet 28 through the air outlet 54 and the pipeline, and enters the heat preservation layer 27 through the air inlet 28 and fills the inside of the heat preservation layer 27, improving the heat preservation effect of the dissolving kettle 1. Furthermore, the energy consumed by the electric heating block 26 inside the dissolving kettle 1 can be reduced. The gas entering the heat preservation layer 27 then enters the reducing pipe 34 through the settings of the exhaust port 29 and the pipeline, and is discharged through the reducing pipe 34 and the porous exhaust plate 35, thereby enabling the reuse of the waste heat of the high-temperature gas inside the drying chamber 11.

[0081] Working principle: By using the data acquisition module 12 to collect one or more of the temperature, pressure, flow rate, solvent concentration, and wind speed in the dissolution kettle 1, screw extruder 2, spinning box 3, duct 4, coagulation bath 9, cleaning chamber 10, and drying chamber 11 respectively, and sending them to the processor module 13. The processor module 13 can display the data through the touch display screen 14. At the same time, it can monitor whether there is data exceeding or lower than the preset threshold among numerous data through the threshold detection module 15. Furthermore, it can automatically achieve precise control and monitoring of the production process through the PLC controller 16 and the actuator 17, thereby achieving the effect of improving production efficiency and product quality. When the threshold detection module 15 monitors that there is data exceeding or lower than the preset threshold among numerous data, it can display the position of the data exceeding or lower than the preset threshold in real time through the touch display screen 14, and then start the alarm module 18 through the PLC controller 16 to remind the staff of the existing problems and improve the efficiency of detection and repair. Through the settings of the heat insulation layer 27, air inlet 28, and exhaust port 29, after the hot air generated by the drying fan 53 dries the fibers, it is transported to the air inlet 28 through the air outlet 54 and the pipeline, and enters the heat insulation layer 27 through the air inlet 28 and fills the inside of the heat insulation layer 27, improving the heat insulation effect of the dissolution kettle 1, thereby being able to reduce the energy consumed by the electric heating block 26 in the dissolution kettle 1. The gas entering the heat insulation layer 27 then enters the diffuser 34 through the exhaust port 29 and the pipeline, and is discharged through the diffuser 34 and the porous exhaust plate 35, thereby being able to recycle the waste heat of the high-temperature gas in the drying chamber 11 and play a role in reducing energy consumption. Through the settings of the duct 4, diffuser 34, and coagulation bath 9, the filaments ejected from the spinneret 33 can be stretched and deformed in the air discharged through the diffuser 34 and the porous exhaust plate 35 in the duct 4, playing a role in extending the length of the stretching zone, and then moving to the coagulation bath 9 to undergo a chemical reaction to generate fibers, thereby achieving the effect of increasing the spinning speed. The data acquisition module 12 collects the temperature and wind speed in the duct 4 in real time through the sensor, and then sends instructions to the PLC controller 16 through the processor module 13. The PLC controller 16 controls the third servo motor 39 to drive the transmission gear 40 to rotate. The rotation of the transmission gear 40 drives the arc rack 37 to rotate, and then drives the aperture adjustment plate 36 to rotate. The rotation of the aperture adjustment plate 36 can adjust the size of the holes on the porous exhaust plate 35, thereby adjusting the wind speed and ensuring the processing stability of the filaments ejected from the spinneret 33 in the duct 4. The fibers generated by the chemical reaction in the coagulation bath 9 are transported to the cleaning chamber 10 through the first conveying roller 42. The clear water in the water tank 48 is sprayed out from the nozzle 46 through the water pump 47 to remove the residual solvent and non-solvent on the fiber surface. The washed water flow is collected through the circulating water storage chamber 49 to avoid wasting water resources. The drying chamber 11 is used to dry the washed fibers and collect them through the collecting roller 44.

[0082] It is obvious to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, in any respect, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A cellulose fiber dry and wet extrusion preparation device, comprising a dissolving kettle (1) and a data acquisition module (12), characterized in that: A screw extruder (2) is installed at the bottom of the dissolving kettle (1), a spinning box (3) is installed at the output end of the screw extruder (2), and a tunnel (4) is installed at the output end of the spinning box (3); A group of fixing rods (5) are installed on the outer wall of the screw extruder (2), a support rod (6) is installed at the bottom of the fixing rod (5), a processing box (7) is installed at the bottom of the support rod (6), a group of partitions (8) are installed on the inner wall of the processing box (7), and a coagulation bath room (9), a cleaning room (10) and a drying room (11) are arranged on the inner wall of the processing box (7) through the partitions (8), and the top of the coagulation bath room (9) corresponds to the bottom of the corridor (4); The data acquisition module (12) collects the temperature, pressure, flow rate, solvent concentration and wind speed in the dissolving kettle (1), the screw extruder (2), the spinning box (3), the tunnel (4), the coagulation bath room (9), the cleaning room (10) and the drying room (11) through sensors. The data acquisition module (12) is electrically connected to the processor module (13). The processor module (13) is electrically connected to the touch screen (14) and the threshold detection module (15) through bidirectional electrical connection. The touch screen (14) is used to display information and input commands by touching elements on the screen. The touch screen (14) is installed on the processing box (7). ) in the middle of the front side, the threshold detection module (15) is used to monitor whether the data acquired by the data acquisition module (12) exceeds or falls below a preset threshold, the processor module (13) is electrically connected to a PLC controller (16), the PLC controller (16) is electrically connected to an actuator (17) and an alarm module (18), and the actuator (17) is respectively installed in the collection and dissolution kettle (1), the screw extruder (2), the spinning box (3), the tunnel (4), the coagulation bath room (9), the cleaning room (10) and the drying room (11), and the alarm module (18) is installed on the top of the front side of the processing box (7); The shell outside the dissolving kettle (1) has an insulating layer (27) inside, the insulating layer (27) is provided with an air inlet (28) and an air outlet (29), and the air inlet (28) and the air outlet (29) are both installed on the back of the dissolving kettle (1), and an electromagnetic valve (55) is installed at the output end at the bottom of the dissolving kettle (1); A gradually expanding tube (34) is installed through one side of the tunnel (4); a multi-porous exhaust plate (35) is installed at one end of the inner wall of the gradually expanding tube (34); an aperture adjustment plate (36) is installed in the middle of one side of the multi-porous exhaust plate (35) through a bearing; holes of the same size are provided on the aperture adjustment plate (36) and the multi-porous exhaust plate (35); an arc-shaped rack (37) is provided on the outer wall of the aperture adjustment plate (36); an arc-shaped through groove (38) is provided on one side of the top of the gradually expanding tube (34); the inner wall of the arc-shaped through groove (38) is movably connected to the outer wall of the arc-shaped rack (37); a third servo motor (39) is installed in the middle of the top of the gradually expanding tube (34); a transmission gear (40) is installed at the output end of the third servo motor (39); the outer wall of the transmission gear (40) is meshed with the arc-shaped rack (37); the other end of the gradually expanding tube (34) is connected to the output end of the exhaust port (29) through a pipeline; The ejected filaments are stretched and deformed in the air discharged from the tunnel (4) through the gradually expanding tube (34) and the porous exhaust plate (35); the data acquisition module (12) collects the temperature and wind speed in the tunnel (4) in real time through a sensor, and sends instructions to the PLC controller (16) through the processor module (13); the third servo motor (39) is controlled by the PLC controller (16) to drive the transmission gear (40) to rotate, and the rotation of the transmission gear (40) drives the arc-shaped rack (37) to rotate, and drives the aperture adjustment plate (36) to rotate, and the rotation of the aperture adjustment plate (36) can adjust the size of the holes on the porous exhaust plate (35) and adjust the wind speed; A top plate (50) is installed on the top of the inner wall of the drying chamber (11), through holes (51) are provided on both sides of the top of the top plate (50), a third guide roller (52) is installed on the bottom of the inner wall of the drying chamber (11), a drying fan (53) is installed in a recessed manner on the front of the drying chamber (11), an air outlet (54) is installed on the back of the drying chamber (11), and the air outlet (54) is connected to the air inlet (28) via a pipeline.

2. A cellulose fiber dry and wet extrusion preparation device according to claim 1, characterized in that: A second servo motor (30) is installed at one end of the screw extruder (2), a screw extrusion rod (31) is installed at the output end of the second servo motor (30), a metering pump (32) is installed inside the spinning box (3), and the metering pump (32) is installed at the output end of the screw extruder (2), the output end of the metering pump (32) is connected to a spinneret (33) through a pipeline, and the filaments ejected from the spinneret (33) enter the tunnel (4).

3. The cellulose fiber dry and wet extrusion preparation device according to claim 1, characterized in that: The interior of the coagulation bath room (9) is filled with a coagulation bath solvent, which is composed of water, phosphoric acid and an organic solvent, wherein the organic solvent comprises one of dimethyl sulfoxide or dimethylformamide, wherein the organic solvent accounts for 25% to 65% of the volume of the coagulation bath solvent, and the bottom of the inner wall of the coagulation bath room (9) comprises a first guide roller (41).

4. The cellulose fiber dry and wet extrusion preparation device according to claim 1, characterized in that: A first conveying roller (42), a second conveying roller (43) and a collecting roller (44) are sequentially mounted on the top of the processing box (7).

5. The cellulose fiber dry and wet extrusion preparation device according to claim 1, characterized in that: A second guide roller (45) is installed on the inner bottom wall of the cleaning chamber (10); a nozzle (46) is movably connected to the top of the inner wall of the cleaning chamber (10); an input end of the nozzle (46) is connected to a water pump (47) via a pipeline; an input end of the water pump (47) is connected to a water tank (48) via a pipeline, and the water tank (48) is installed on the front side of the processing box (7); and the bottom of the back side of the cleaning chamber (10) is connected to a circulating water storage chamber (49) via a pipeline.

6. A method for using a cellulose fiber dry and wet extrusion preparation device according to any one of claims 1 to 5, characterized in that: The working steps of the cellulose fiber dry and wet extrusion preparation device are as follows: S1, using a data acquisition module (12) to respectively collect one or more of the temperature, pressure, flow rate, solvent concentration and wind speed in the dissolving kettle (1), the screw extruder (2), the spinning box (3), the tunnel (4), the coagulation bath room (9), the cleaning room (10) and the drying room (11), and send the data to a processor module (13); S2, the processor module (13) can display the data through the touch screen (14), and can monitor whether there is data exceeding or below a preset threshold value among the numerous data through the threshold detection module (15), and can then automatically realize accurate control and monitoring of the production process through the PLC controller (16) and the actuator (17); S3, adding the raw materials and the solvent into the dissolving kettle (1) according to the set ratio, mixing and stirring, and fully dissolving to form a liquid crystal glue; S4, using a screw extruder (2) to transport the stock solution into a spinning box (3), and spraying filaments through a spinneret 33 to transport them into a tunnel (4); S5, through the arrangement of the channel (4), the gradually expanding tube (34) and the coagulation bath chamber (9), the filaments are stretched and deformed in the channel (4), thereby extending the length of the stretching zone, and then moved to the coagulation bath chamber (9) to undergo a chemical reaction to generate fibers; S6. The fibers generated by the chemical reaction in the coagulation bath chamber (9) are transported to the cleaning chamber (10) through the first conveying roller (42). Clean water in the water tank (48) is sprayed out from the nozzle (46) through the water pump (47) to remove the residual solvent and non-solvent on the fiber surface. The water flow after cleaning is collected through the circulating water storage chamber (49) to avoid water waste. The drying chamber (11) is used to dry the cleaned fibers and collect them through the collecting roller (44).

7. The method for using the cellulose fiber dry and wet extrusion preparation device according to claim 6, characterized in that: The step S2 also includes the following steps: S21, when the threshold detection module (15) monitors the presence of data exceeding or falling below a preset threshold value among a large number of data, the position of the data exceeding or falling below the preset threshold value can be displayed in real time through the touch display screen (14), and then the alarm module (18) is activated through the PLC controller (16) to remind the staff of the problem, thereby improving the efficiency of detection and maintenance; The step S5 also includes the following steps: S51, the data acquisition module (12) collects the temperature and wind speed in the tunnel (4) in real time through the sensor, and then sends instructions to the PLC controller (16) through the processor module (13), and the PLC controller (16) controls the third servo motor (39) to drive the transmission gear (40) to rotate, and the rotation of the transmission gear (40) drives the arc-shaped rack (37) to rotate, and then drives the aperture adjustment plate (36) to rotate, and the rotation of the aperture adjustment plate (36) can adjust the size of the holes on the porous exhaust plate (35), and then adjust the wind speed, so as to ensure the processing stability of the filaments ejected by the spinneret (33) in the tunnel (4); The step S6 also includes the following steps: S61, after the hot air generated by the drying fan (53) dries the fiber, it is transported to the air inlet (28) through the air outlet (54) and the pipeline, and enters the thermal insulation layer (27) through the air inlet (28) and fills the interior of the thermal insulation layer (27), thereby improving the thermal insulation effect of the dissolving kettle (1), thereby reducing the energy consumed by the electric heating block (26) in the dissolving kettle (1), and the gas entering the thermal insulation layer (27) enters the gradually expanding pipe (34) through the exhaust port (29) and the pipeline, and is discharged through the gradually expanding pipe (34) and the porous exhaust plate (35), thereby enabling the waste heat of the high-temperature gas in the drying chamber (11) to be reused.

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