A method and apparatus for defibrating unconventional coniferous cellulose

Abstract

The present invention discloses a defibration method and device for unconventional coniferous cellulose, including a box body. One end surface of the box body is fixedly installed with a cover plate. The other side surface of the cover plate is provided with a U-shaped plate. One side surface of the U-shaped plate is fixedly installed with a motor. The shaft end of the motor is rotatably installed with a rotating rod. One end of the rotating rod is fixedly connected with a square rod. A connecting ring is slidably installed on the surface of the square rod. A conical rod is fixedly installed on the side surface of the connecting ring. S1: Select coniferous raw materials and immerse the raw materials; S2: Carry out uniform dispersion; S3: Pull the pull rope to drive the connecting ring and the conical rod to slide upward; S4: Add defibration agent into the box body; S5: Re-add water to immerse the coniferous raw materials; S6: Start the motor again to drive stirring; S7: Hammer and polish the defibrated raw materials; S8: Take out the materials after they are qualified, which is conducive to sectional adjustment and use, with high efficiency, stable quality, and is conducive to controlling production and convenient for popularization and use.

Description

Technical Field

[0001] The invention relates to the technical field of cellulose decomposition, and in particular to a decomposition method and equipment for unconventional coniferous cellulose. Background Art

[0002] In the process of utilizing unconventional needles, in order to ensure the quality and effect of subsequent processing, the needles need to be deflated first, the fiber bundles need to be dispersed into single fibers, and then subsequent processing and production can be carried out.

[0003] However, the existing unconventional cellulose decomposition mostly directly uses a decomposition tank for long-term soaking, which not only has a low decomposition efficiency, affecting large-scale use, but is also not conducive to sufficient stirring and grinding of fiber clusters, affecting the decomposition process. In addition, the structure of the decomposition tank is not conducive to multiple process processing, affecting the decomposition quality, and needs to be improved. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a method and equipment for deflaking unconventional coniferous cellulose.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A method and device for decomposing unconventional needle cellulose, comprising a box body, a drainage pipe is provided on one end side of the box body, a cover plate is fixedly installed on one end surface of the box body, a through hole is provided on the surface of the cover plate, a U-shaped plate is provided on the other side surface of the cover plate, a motor is fixedly installed on one side surface of the U-shaped plate, a rotating rod is rotatably installed on the shaft end of the motor, a square rod is fixedly connected to one end of the rotating rod, a connecting ring is slidably installed on the surface of the square rod, a conical rod is fixedly installed on the side of the connecting ring, and the surface of the conical rod is rotatably connected to the side of the box body;

[0007] The method for deflaking unconventional coniferous cellulose comprises the following steps:

[0008] S1. Select coniferous raw materials, crush them and put them into the box, add water according to the weight ratio of 1:10-12 to immerse the raw materials;

[0009] S2, start the motor to rotate the rotating rod and the conical plate rod, and stir at a constant speed for 10 to 15 minutes to achieve uniform dispersion;

[0010] S3, pull the pull rope to slide the connecting ring and the tapered rod upward, connect them to the upper end in a stacked manner, and leave the water surface;

[0011] S4. Add debonding agent into the box, the mass ratio of which is 5%-8% of the weight of the needle leaf raw material, soak and soften to debond, and continue for 20 to 24 hours;

[0012] S5. After the evacuation, drain the water inside the box body and refill it with water until the needle raw materials are submerged.

[0013] S6. Loosen the drawstring to reset the connecting ring and the conical rod, and start the motor again to drive the stirring.

[0014] S7. Adjust the rotation speed to 250 to 280 revolutions per minute for high-speed rotational stirring, hammer and polish the defibrated raw materials, and continue for 40 to 60 minutes.

[0015] S8. After stopping the rotational stirring, open the cover plate to inspect the defibrated fibers. After passing the inspection, take out the materials.

[0016] S9. Filter the taken-out materials to separate the fibers and the liquid, and thus complete the defibration of the unconventional needle cellulose.

[0017] Preferably, wedge-shaped surfaces are provided on both side surfaces of the square rod, wedge-shaped holes are provided on the side surface of the connecting ring, and the side surface of the wedge-shaped hole is slidably mounted on the side surface of the wedge-shaped surface.

[0018] Preferably, connecting holes are provided on both side surfaces of the connecting ring, and drawstrings are slidably connected to the side surfaces of the connecting holes.

[0019] Preferably, a mounting through hole is provided on the surface of one end of the rotating rod, a threaded rod is rotatably connected to the side surface of the mounting through hole, and both end surfaces of the threaded rod are wound around one end surface of the drawstring.

[0020] Preferably, fixing nuts are threadedly connected to both end surfaces of the threaded rod, and the surfaces of the fixing nuts are tightly abutted against the side surface of the rotating rod.

[0021] Preferably, the method of adjusting by pulling the drawstring in S3 includes the following steps:

[0022] A1. Loosen the fixing nut from the upper end and rotate the threaded rod to wind and curl the drawstring.

[0023] A2. The drawstring slides inside the connecting hole, pulling the lowermost connecting ring to slide upward.

[0024] A3. When the lowermost connecting ring touches the upper connecting ring, it can be pushed upward, and the pushing adjustment is carried out in sequence, driving all the connecting rings to move to the uppermost position of the square rod.

[0025] A4. The conical rod disengages from the liquid surface, is stacked and connected to the upper end, and the filing nut is tightened to lock and position, thus completing the adjustment of the drawstring.

[0026] Preferably, the deflocculant in S4 comprises 35%-45% sodium carbonate, 25%-35% calcium hydroxide, 5%-15% sodium sulfate, 5%-15% hydrogen peroxide, 5%-10% yeast, 0.5%-1.5% hydrochloric acid, and 0.5%-1.5% formaldehyde solution.

[0027] Preferably, the concentration of the hydrogen peroxide is 40%-60%, the concentration of the hydrochloric acid is 6%-8%, and the concentration of the formaldehyde solution is 20%-30%, and all are aqueous solutions.

[0028] Preferably, the preparation method of the deflocculant comprises the following steps:

[0029] B1. Add sodium carbonate, calcium hydroxide, and sodium sulfate to a blender, and stir evenly for mixing to obtain a mixed powder;

[0030] B2. Add the mixed powder to the formaldehyde solution and stir evenly to obtain a mixed solution;

[0031] B3. Add yeast to the mixed solution, and let it stand for 2 to 30 minutes to obtain a standing solution;

[0032] B4. Mix hydrogen peroxide and hydrochloric acid, and stir for 3 to 5 minutes to obtain a stirred solution;

[0033] B5. Drop the stirred solution into the standing solution, and continuously stir during the process until no more bubbles are generated to form an emulsion, then the preparation of the deflocculant is completed.

[0034] A deflocculation method and device for unconventional coniferous cellulose provided by the present invention install a U-shaped plate through a cover plate at the upper end of the box body, and then connect the motor and the square rod. The connecting ring and the conical rod can be slidably installed, which is beneficial to stirring and grinding the raw materials, convenient for processing. At the same time, the connection and installation positions can be adjusted at different stages to avoid interference and corrosion. At the same time, by combining the addition of a deflocculant for soaking, the deflocculation efficiency can be greatly improved. Finally, hammering and grinding are carried out, which is beneficial to the dispersion of fiber bundles, ensuring the deflocculation quality, facilitating sectional adjustment for use, being efficient, stable, and of high quality, being beneficial to production control, and convenient for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0036] Figure 2 is of the present invention Figure 1 an enlarged view of part A connected by the connecting ring in;

[0037] Figure 3 is a schematic diagram of the partial structure connected by the threaded rod of the present invention.

[0038] In the figure: 1 box body, 11 drain pipe, 12 cover plate, 13 through hole, 14 U-shaped plate, 15 motor, 16 rotating rod, 17 square rod, 18 connecting ring, 19 tapered rod, 2 wedge surface, 21 wedge hole, 22 connecting hole, 23 pull rope, 24 mounting through hole, 25 threaded rod, 26 fixing nut. Detailed implementation manners

[0039] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the following further elaborates on the present invention in combination with specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0040] In order to achieve the above objectives, the present invention adopts the following technical solutions:

[0041] Please refer to Figure 1 , Figure 2 and Figure 3 , a defibration method and device for unconventional softwood cellulose, including a box body 1, one side surface of the box body 1 is provided with a drain pipe 11, one end surface of the box body 1 is fixedly installed with a cover plate 12, the surface of the cover plate 12 is provided with a through hole 13, the other side surface of the cover plate 12 is provided with a U-shaped plate 14, one side surface of the U-shaped plate 14 is fixedly installed with a motor 15, the shaft end of the motor 15 is rotatably installed with a rotating rod 16, one end of the rotating rod 16 is fixedly connected with a square rod 17, the surface of the square rod 17 is slidably installed with a connecting ring 18, the side surface of the connecting ring 18 is fixedly installed with a tapered rod 19, and the surface of the tapered rod 19 is rotatably connected to the side surface of the box body 1;

[0042] The defibration method for unconventional softwood cellulose includes the following steps:

[0043] S1. Select softwood raw materials, crush them and put them into the box body, add water according to the weight ratio of 1:10 - 12 to submerge the raw materials;

[0044] S2. Start the motor to drive the rotating rod and the tapered plate rod to rotate, stir evenly for 10 to 15 minutes for uniform dispersion;

[0045] S3. Pull the pull rope to drive the connecting ring and the tapered rod to slide upward, stack and connect to the upper end for positioning and get out of the water surface;

[0046] S4. Add a defibration agent into the box body, with a mass ratio of 5% - 8% of the weight of the softwood raw materials, soak and soften for defibration, lasting for 20 to 24 hours;

[0047] S5. After defibration, drain the water inside the box body, and add water again to submerge the softwood raw materials;

[0048] S6. Release the pull rope to reset the connecting ring and the conical rod, and start the motor drive again for stirring;

[0049] S7. Adjust the rotation speed to 250 to 280 revolutions per minute for high-speed rotational stirring to hammer and polish the defibrated raw materials for 40 to 60 minutes;

[0050] S8. After stopping the rotational stirring, open the cover plate to detect the defibrated fibers, and take out the materials after passing the inspection;

[0051] S9. Filter the taken-out materials to separate the fibers and the liquid, and thus complete the defibration of the unconventional softwood cellulose.

[0052] Preferably, wedge surfaces 2 are provided on both side surfaces of the square rod 17, and wedge-shaped holes 21 are provided on the side surface of the connecting ring 18, with a smaller width at the top and a larger width at the bottom. In this way, by connecting the wedge surfaces 2 through different wedge-shaped holes 21, snap-fit positioning can be achieved to prevent downward detachment, ensure that the multi-layer connecting rings 18 are arranged in sequence, facilitate positioning and installation for use, and at the same time facilitate upward positioning adjustment without interfering with the side sliding installation of the wedge-shaped holes 21 on the side surfaces of the wedge surfaces 2.

[0053] Preferably, connecting holes 22 are provided on both side surfaces of the connecting ring 18, and a pull rope 23 is slidably connected to the side surface of the connecting hole 22, which can pull all the connecting rings 18 to slide upward in sequence for convenient adjustment.

[0054] Preferably, an installation through hole 24 is provided on the surface of one end of the rotating rod 16, and a threaded rod 25 is rotatably connected to the side surface of the installation through hole 24. The two end surfaces of the threaded rod 25 are wound around the surface of one end of the pull rope 23, which can rotate and wind the pull rope 23 for convenient positioning adjustment and stability.

[0055] Preferably, fixing nuts 26 are threadedly connected to the two end surfaces of the threaded rod 25, and the surface of the fixing nut 26 is tightly abutted against the side surface of the rotating rod 16.

[0056] Preferably, the method of pulling the pull rope for adjustment in S3 includes the following steps:

[0057] A1. Loosen the fixing nut from the upper end and rotate the threaded rod to wind and curl the pull rope;

[0058] A2. The pull rope slides inside the connecting hole, pulling the lowermost connecting ring upward;

[0059] A3. When the lowermost connecting ring touches the upper connecting ring, it can be pushed upward, and the pushing adjustment is carried out in sequence to drive all the connecting rings to move to the uppermost position of the square rod;

[0060] A4. The conical rod is separated from the liquid surface, stacked and connected to the upper end, and the filing nut is tightened to lock the position, then the guy wire adjustment can be completed.

[0061] Preferably, the defibration agent in S4 includes 35%-45% sodium carbonate, 25%-35% calcium hydroxide, 5%-15% sodium sulfate, 5%-15% hydrogen peroxide, 5%-10% yeast, 0.5%-1.5% hydrochloric acid, and 0.5%-1.5% formaldehyde solution.

[0062] Preferably, the concentration of the hydrogen peroxide is 40%-60%, the concentration of the hydrochloric acid is 6%-8%, and the concentration of the formaldehyde solution is 20%-30%, and all are aqueous solutions.

[0063] Preferably, the preparation method of the defibration agent includes the following steps:

[0064] B1. Add sodium carbonate, calcium hydroxide and sodium sulfate into a blender, and stir evenly to mix to obtain a mixed powder;

[0065] B2. Add the mixed powder into the formaldehyde solution and stir evenly to obtain a mixed solution;

[0066] B3. Add yeast into the mixed solution and let it stand for 2 minutes to 30 minutes to obtain a standing solution;

[0067] B4. Mix hydrogen peroxide and hydrochloric acid and stir for 3 minutes to 5 minutes to obtain a stirred solution;

[0068] B5. Drop the stirred solution into the standing solution, and keep stirring during the process until no more bubbles are generated to form an emulsion, then the preparation of the defibration agent can be completed.

[0069] A defibration method and device for unconventional softwood cellulose provided by the present invention install a U-shaped plate through the cover plate at the upper end of the box body, and then connect the motor and the square rod. The connecting ring and the conical rod can be slidably installed, which is beneficial to stir and polish the raw materials, convenient for processing. At the same time, the connection and installation positions can be adjusted at different stages to avoid interference and corrosion. At the same time, by combining the addition of a defibration agent for soaking, the defibration efficiency can be greatly improved. Finally, hammering and polishing are carried out, which is beneficial to the dispersion of fiber bundles, ensuring the defibration quality, facilitating sectional adjustment and use, being efficient, stable and of high quality, being beneficial to production control, and convenient for popularization and use.

[0070] Example 1

[0071] A method and device for decomposing unconventional needle cellulose, comprising a box body 1, a drainage pipe 11 is provided on one end side of the box body 1, a cover plate 12 is fixedly installed on one end surface of the box body 1, a through hole 13 is provided on the surface of the cover plate 12, a U-shaped plate 14 is provided on the other side surface of the cover plate 12, a motor 15 is fixedly installed on one side surface of the U-shaped plate 14, a rotating rod 16 is rotatably installed on the shaft end of the motor 15, a square rod 17 is fixedly connected to one end of the rotating rod 16, a connecting ring 18 is slidably installed on the surface of the square rod 17, a conical rod 19 is fixedly installed on the side of the connecting ring 18, and the surface of the conical rod 19 is rotatably connected to the side of the box body 1;

[0072] The method for deflaking unconventional coniferous cellulose comprises the following steps:

[0073] S1. Select coniferous raw materials, crush them and put them into the box, add water according to the weight ratio of 1:10-12 to immerse the raw materials;

[0074] S2, start the motor to rotate the rotating rod and the conical plate rod, and stir at a constant speed for 10 to 15 minutes to achieve uniform dispersion;

[0075] S3, pull the pull rope to slide the connecting ring and the tapered rod upward, connect them to the upper end in a stacked manner, and leave the water surface;

[0076] S4. Add debonding agent into the box, the mass ratio of which is 5%-8% of the weight of the needle leaf raw material, soak and soften to debond, and continue for 20 to 24 hours;

[0077] S5. After the degassing is completed, the water inside the box is drained and water is added again to immerse the needle leaf raw materials;

[0078] S6, loosen the pull rope to reset the connecting ring and the tapered rod, and start the motor drive again to stir;

[0079] S7, adjusting the speed to 250 to 280 rpm, performing high-speed rotation stirring, hammering and grinding the decomposed raw materials, and continuing for 40 to 60 minutes;

[0080] S8. After stopping the rotation and stirring, open the cover plate to test the debonded fibers, and take out the materials after they are qualified;

[0081] S9. The taken-out material is filtered to separate the fibers and the liquid, thereby completing the decomposition of the unconventional coniferous cellulose.

[0082] Preferably, wedge-shaped surfaces 2 are provided on both side surfaces of the square rod 17 , and wedge-shaped holes 21 are provided on the side surfaces of the connecting ring 18 , and the side surfaces of the wedge-shaped holes 21 are slidably mounted on the side surfaces of the wedge-shaped surfaces 2 .

[0083] Preferably, connection holes 22 are provided on both side surfaces of the connection ring 18, and a drawstring 23 is slidably connected to the side surface of the connection hole 22.

[0084] Preferably, an installation through hole 24 is provided on the surface of one end of the rotating rod 16, a threaded rod 25 is rotatably connected to the side surface of the installation through hole 24, and both ends of the threaded rod 25 are wound around the surface of one end of the drawstring 23.

[0085] Preferably, fixing nuts 26 are threadedly connected to both ends of the threaded rod 25, and the surface of the fixing nut 26 is tightly connected to the side surface of the rotating rod 16.

[0086] Preferably, the method of pulling the drawstring for adjustment in S3 includes the following steps:

[0087] A1. Loosen the fixing nut from the upper end and rotate the threaded rod to wind and curl the drawstring;

[0088] A2. The drawstring slides inside the connection hole, pulling the lowermost connection ring to slide upward;

[0089] A3. When the lowermost connection ring touches the upper connection ring, it can be pushed upward, and the pushing adjustment is carried out in sequence, driving all the connection rings to move to the uppermost position of the square rod;

[0090] A4. The conical rod disengages from the liquid surface, is stacked and connected to the upper end, and the filing nut is tightened to lock and position, and the drawstring adjustment can be completed.

[0091] Preferably, the delignification agent in S4 includes 35% sodium carbonate, 30% calcium hydroxide, 14% sodium sulfate, 10% hydrogen peroxide, 8% yeast, 1.5% hydrochloric acid, and 1.5% formaldehyde solution.

[0092] Preferably, the concentration of hydrogen peroxide is 60%, the concentration of hydrochloric acid is 7%, and the concentration of formaldehyde solution is 30%, and all are aqueous solutions.

[0093] Preferably, the preparation method of the delignification agent includes the following steps:

[0094] B1. Add sodium carbonate, calcium strong oxide, and sodium sulfate to a blender, stir evenly to mix, and obtain a mixed powder;

[0095] B2. Add the mixed powder to the formaldehyde solution and stir evenly to obtain a mixed solution;

[0096] B3. Add yeast to the mixed solution, let it stand for 2 minutes to 30 minutes, and obtain a standing solution;

[0097] B4. Mix hydrogen peroxide and hydrochloric acid and stir for 3 minutes to 5 minutes to obtain a stirred solution;

[0098] B5. Drop the stirred solution into the static solution, continuously stir during this period until no more bubbles are generated to form an emulsion, then the preparation of the defibrating agent is completed.

[0099] Example 2

[0100] A defibrating method and device for unconventional softwood cellulose, including a box body 1. One side surface of one end of the box body 1 is provided with a drain pipe 11. The surface of one end of the box body 1 is fixedly installed with a cover plate 12. The surface of the cover plate 12 is provided with a through hole 13. The other side surface of the cover plate 12 is provided with a U-shaped plate 14. One side surface of the U-shaped plate 14 is fixedly installed with a motor 15. The shaft end of the motor 15 is rotatably installed with a rotating rod 16. One end of the rotating rod 16 is fixedly connected with a square rod 17. The surface of the square rod 17 is slidably installed with a connecting ring 18. One side surface of the connecting ring 18 is fixedly installed with a conical rod 19. The surface of the conical rod 19 is rotatably connected to the side surface of the box body 1.

[0101] The defibrating method for unconventional softwood cellulose includes the following steps:

[0102] S1. Select softwood raw materials, break them and put them into the box body, add water according to the weight ratio of 1:10 - 12 to submerge the raw materials.

[0103] S2. Start the motor to drive the rotating rod and the conical plate rod to rotate, stir evenly for 10 to 15 minutes for uniform dispersion.

[0104] S3. Pull the pull rope to drive the connecting ring and the conical rod to slide upward, stack and connect to the upper end for positioning, and get out of the water surface.

[0105] S4. Add a defibrating agent into the box body, with a mass ratio of 5% - 8% of the weight of the softwood raw materials, soak and soften for defibrating, and continue for 20 to 24 hours.

[0106] S5. After defibrating, drain the water inside the box body, and add water again to submerge the softwood raw materials.

[0107] S6. Loosen the pull rope to reset the connecting ring and the conical rod, and start the motor again to drive for stirring.

[0108] S7. Adjust the rotation speed to 250 - 280 revolutions per minute for high-speed rotation and stirring, hammer and polish the defibrated raw materials, and continue for 40 to 60 minutes.

[0109] S8. After stopping the rotation and stirring, open the cover plate to detect the defibrated fibers, and take out the materials after passing the inspection.

[0110] S9. Filter the taken-out materials to separate the fibers and the liquid, then the defibrating of the unconventional softwood cellulose is completed.

[0111] Preferably, wedge-shaped surfaces 2 are provided on both side surfaces of the square rod 17, a wedge-shaped hole 21 is provided on the side surface of the connecting ring 18, and the side surface of the wedge-shaped hole 21 is slidably mounted on the side surface of the wedge-shaped surface 2.

[0112] Preferably, connecting holes 22 are provided on both side surfaces of the connecting ring 18, and a pull rope 23 is slidably connected to the side surface of the connecting hole 22.

[0113] Preferably, a mounting through hole 24 is provided on the surface of one end of the rotating rod 16, a threaded rod 25 is rotatably connected to the side surface of the mounting through hole 24, and both ends of the threaded rod 25 are wound around the surface of one end of the pull rope 23.

[0114] Preferably, fixing nuts 26 are threadedly connected to both ends of the threaded rod 25, and the surface of the fixing nut 26 is tightly abutted against the side surface of the rotating rod 16.

[0115] Preferably, the method for adjusting by pulling the pull rope in S3 includes the following steps:

[0116] A1. Loosen the fixing nut from the upper end and rotate the threaded rod to wind and curl the pull rope;

[0117] A2. The pull rope slides inside the connecting hole, pulling the lowermost connecting ring to slide upward;

[0118] A3. When the lowermost connecting ring touches the upper connecting ring, it can be pushed upward, and the pushing adjustment is carried out in sequence, driving all the connecting rings to move to the uppermost position of the square rod;

[0119] A4. The tapered rod is separated from the liquid surface, stacked and connected to the upper end, and the filing nut is tightened to lock and position, and the adjustment of the pull rope can be completed.

[0120] Preferably, the delignifying agent in S4 includes 45% sodium carbonate, 28% calcium hydroxide, 15% sodium sulfate, 5% hydrogen peroxide, 5% yeast, 1% hydrochloric acid, and 1% formaldehyde solution.

[0121] Preferably, the concentration of hydrogen peroxide is 40%, the concentration of hydrochloric acid is 8%, the concentration of formaldehyde solution is 20%, and all are aqueous solutions.

[0122] Preferably, the preparation method of the delignifying agent includes the following steps:

[0123] B1. Add sodium carbonate, calcium hydroxide and sodium sulfate into a mixer, stir evenly for mixing to obtain a mixed powder;

[0124] B2. Add the mixed powder into the formaldehyde solution and stir evenly to obtain a mixed solution;

[0125] B3. Add yeast to the mixed solution and let it stand for 2 to 30 minutes to obtain a standing solution;

[0126] B4. Mix hydrogen peroxide and hydrochloric acid and stir for 3 to 5 minutes to obtain a stirred solution;

[0127] B5. Drop the stirred solution into the standing solution and continuously stir during the process until no more bubbles are generated to form an emulsion, thus completing the preparation of the deflocculant.

Claims

1. A defibration method for unconventional softwood cellulose, comprising a box body (1), characterized in that: One side of the box body (1) is provided with a drain pipe (11). One end surface of the box body (1) is fixedly installed with a cover plate (12). The surface of the cover plate (12) is provided with a through hole (13). The other side surface of the cover plate (12) is provided with a U-shaped plate (14). One side surface of the U-shaped plate (14) is fixedly installed with a motor (15). The shaft end of the motor (15) is rotatably installed with a rotating rod (16). One end of the rotating rod (16) is fixedly connected with a square rod (17). The surface of the square rod (17) is slidably installed with a connecting ring (18). One side of the connecting ring (18) is fixedly installed with a tapered rod (19). The surface of the tapered rod (19) is rotatably connected to the side surface of the box body (1). Both side surfaces of the connecting ring (18) are provided with connecting holes (22). The side surface of the connecting hole (22) is slidably connected with a pull rope (23). One end surface of the rotating rod (16) is provided with an installation through hole (24). The side surface of the installation through hole (24) is rotatably connected with a threaded rod (25). Both ends of the threaded rod (25) are wound around one end surface of the pull rope (23). Both ends of the threaded rod (25) are threadedly connected with fixing nuts (26). The surface of the fixing nut (26) is tightly connected to the side surface of the rotating rod (16). Both side surfaces of the square rod (17) are provided with wedge-shaped surfaces (2). The side surface of the connecting ring (18) is provided with a wedge-shaped hole (21). The side surface of the wedge-shaped hole (21) is slidably installed on the side surface of the wedge-shaped surface (2). The method for defibrating unconventional softwood cellulose includes the following steps: S1. Select softwood raw materials, crush them and put them into the box body, add water according to the weight ratio of 1:10 - 12, and submerge the raw materials. S2. Start the motor to drive the rotating rod and the tapered plate rod to rotate, stir evenly for 10 to 15 minutes to disperse evenly. S3. Pull the pull rope to drive the connecting ring and the tapered rod to slide upward, stack and connect to the upper end for positioning, and separate from the water surface. S4. Add a defibrating agent to the box body, with a mass ratio of 5% - 8% of the weight of the softwood raw materials, soak and soften for defibrating, and continue for 20 to 24 hours. S5. After defibrating, drain the water inside the box body, and refill the water to submerge the softwood raw materials again. S6. Loosen the pull rope to reset the connecting ring and the tapered rod, and start the motor again to drive the stirring. S7. Adjust the rotation speed to 250 to 280 revolutions per minute, perform high-speed rotation and stirring, hammer and polish the defibrated raw materials, and continue for 40 to 60 minutes. S8. After stopping the rotation and stirring, open the cover plate to detect the defibrated fibers, and take out the materials after passing the inspection. S9. Filter the taken-out materials to separate the fibers and the liquid, and then the defibrating of unconventional softwood cellulose can be completed. The method for adjusting by pulling the pull rope in S3 includes the following steps: A1. Loosen the fixing nut from the upper end, and rotate the threaded rod to wind and curl the pull rope. A2. The pull rope slides out from the inside of the connecting hole, and pulls the lowermost connecting ring to slide upward. A3. The connecting ring at the bottom layer touches the connecting ring at the upper layer and can be pushed upward. Push and adjust them in sequence to move all the connecting rings to the uppermost position of the square rod. A4. The tapered rod disengages from the liquid surface, is stacked and connected to the upper end, and the filing nut is tightened to lock and position, thus completing the adjustment of the pull rope.

2. The defibration method for unconventional softwood cellulose according to claim 1, characterized in that: The delignification agent in S4 includes 35%-45% sodium carbonate, 25%-35% calcium hydroxide, 5%-15% sodium sulfate, 5%-15% hydrogen peroxide, 5%-10% yeast, 0.5%-1.5% hydrochloric acid, and 0.5%-1.5% formaldehyde solution.

3. The defibration method for unconventional softwood cellulose according to claim 2, characterized in that: The concentration of the hydrogen peroxide is 40%-60%, the concentration of the hydrochloric acid is 6%-8%, and the concentration of the formaldehyde solution is 20%-30%, and all are aqueous solutions.

4. The defibration method for unconventional softwood cellulose according to claim 1, characterized in that: The preparation method of the delignification agent includes the following steps: B1. Add sodium carbonate, calcium strong oxide, and sodium sulfate to a blender, and stir evenly to mix to obtain a mixed powder. B2. Add the mixed powder to the formaldehyde solution and stir evenly to obtain a mixed solution. B3. Add yeast to the mixed solution and let it stand for 2 minutes to 30 minutes to obtain a standing solution. B4. Mix hydrogen peroxide and hydrochloric acid and stir for 3 minutes to 5 minutes to obtain a stirred solution. B5. Drop the stirred solution into the standing solution, and continuously stir during this period until no more bubbles are generated to form an emulsion, thus completing the preparation of the delignification agent.

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