Modified straw paper production device based on nanocellulose and process thereof

Abstract

The invention provides a modified straw paper production device based on nanocellulose and a process thereof, and relates to the field of straw paper production, the modified straw paper production device comprises a pulper case, a front pulp chest, a pulping machine, a rear pulp chest, a three-layer overlapping forming paper machine and straw paper; a latex coating structure is fixedly arranged on the outer side of the three-layer stacking net forming paper machine, and a drying assembly is fixedly arranged at the top of the latex coating structure. A driving structure is fixedly arranged at the top of the drying assembly, and a paper rolling device is fixedly arranged on the outer side of the latex coating structure. The modified cellulose solution is mixed with wood pulp, so that organic groups on cellulose can be released, and nanoscale cellulose is combined with wood fibers; meanwhile, the environment-friendly reinforced latex is coated on the surface of the straw paper, so that the stiffness and the water resistance of the straw paper can be improved; therefore, the softening time of the modified straw paper is prolonged, and the problem that paper straws in the market generally face a phenomenon that the straws are easy to soften and deform after meeting water is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of straw paper production, and in particular to a nanocellulose-based modified straw paper production device and a process thereof. Background Art

[0002] Paper straws are straws made of paper or pulp, often used to replace plastic straws to reduce plastic pollution; paper straws are usually made by rolling paper into a tube to form the main part of the straw; then they are cut and processed to form the final paper straws.

[0003] In the current production process of paper straws, a key step is to effectively decompose the plant fiber raw materials through mechanical equipment and then convert them into pulp; then, the pulps are processed by precision papermaking machines and finally formed into paper; however, in the plant fiber dissociation stage, the traditional process mainly relies on a unidirectional rotating crushing shaft to crush the fibers; this single crushing method not only limits the further improvement of the crushing efficiency, but may also lead to insufficient uniformity in fiber crushing, affecting the quality of subsequent pulp; in addition, paper straws on the market currently generally face a phenomenon, that is, they are easy to soften and deform when exposed to water; this defect greatly affects the consumer's usage experience and limits the application scope and durability of paper straws in humid environments. Summary of the invention

[0004] In view of this, the present invention provides a modified straw paper production device based on nanocellulose and a process thereof, which can release the organic groups on cellulose by mixing the modified cellulose solution with wood pulp, and combine the nano-scale cellulose with the wood fibers, so that the originally messy wood fibers form a hierarchical network structure, and achieve temperature tolerance through the free organic groups on the nano-scale cellulose, and further reduce the direct contact between water molecules and wood fibers, and by coating the surface of the straw paper with environmentally friendly reinforced latex, the stiffness and water resistance of the straw paper can be improved, thereby extending the softening time of the modified straw paper.

[0005] The present invention provides a nanocellulose-based modified straw paper production device and a process thereof, which specifically comprises: a pulper box, a front pulp tank, a pulper, a rear pulp tank, a three-layer stacked net forming papermaking machine and straw paper; a first pulp pump is fixedly installed between the pulper box and the front pulp tank, and a second pulp pump is fixedly installed between the front pulp tank and the pulper; a third pulp pump is fixedly installed between the pulper and the rear pulp tank, and a flushing pump is fixedly installed between the rear pulp tank and the three-layer stacked net forming papermaking machine, and straw paper is transported in the paper outlet of the three-layer stacked net forming papermaking machine;

[0006] A latex coating structure is fixedly arranged on the outside of the three-layer stacked net forming papermaking machine, and a drying component is fixedly arranged on the top of the latex coating structure; a driving structure is fixedly arranged on the top of the drying component, and a paper winding device is fixedly arranged on the outside of the latex coating structure; the latex coating structure includes: a coating box, an auxiliary roller A, a coating roller A, a sliding seat, a coating roller B and an auxiliary roller B; the coating box is fixedly installed on the outside of the three-layer stacked net forming papermaking machine, and the inside of the coating box is filled with environmentally friendly reinforced latex; the auxiliary roller A is rotatably arranged on the coating box On one side of the top, the top of the auxiliary roller A is in contact with the bottom of the straw paper; the coating roller A is rotatably arranged inside the coating box; the sliding seat is slidably arranged on both sides of the coating box through a dovetail groove, and there are two groups of sliding seats; the coating roller B is rotatably arranged between the two groups of sliding seats, and the coating roller B and the coating roller A are located on the same horizontal line, and the bottom of the coating roller B and the coating roller A are both in contact with the top of the straw paper; the auxiliary roller B is rotatably arranged at the top of the coating box, and there are two groups of auxiliary rollers B, and straw paper is transported between the two groups of auxiliary rollers B.

[0007] In at least some embodiments, the first pulp pump can pump the slurry in the pulper box into the front pulp tank, and the second pulp pump can pump the slurry in the front pulp tank into the refiner; the third pulp pump can pump the slurry in the refiner into the rear pulp tank, and the flushing pump can pump the slurry in the rear pulp tank into the three-layer stacked wire forming papermaking machine.

[0008] In at least some embodiments, a pulping main shaft is rotatably arranged inside the pulping machine box, and the pulping main shaft is fixedly arranged at the shaft end of the motor device, and the motor device is fixedly arranged on the outside of the pulping machine box; pulping teeth A are fixedly arranged on the outside of the pulping main shaft, and an auxiliary box is rotatably arranged on the outside of the pulping main shaft; a bevel gear A is fixedly arranged on the outside of the pulping main shaft, and the bevel gear A is located inside the auxiliary box; a pulping secondary shaft is rotatably arranged between the auxiliary box and the inside of the pulping machine box, and pulping teeth B are fixedly arranged on the outside of the pulping secondary shaft; a bevel gear B is fixedly arranged on the top of the pulping secondary shaft, and the bevel gear B is meshed with the bevel gear A, and the pulping secondary shaft and the bevel gear B are symmetrically arranged in four groups.

[0009] In at least some embodiments, the environmentally friendly reinforced latex filled inside the coating box is a mixture of dimethyl itaconate, water, sodium dodecyl sulfate, nonylphenol polyoxyethylene ether, dicyclopentenyloxyethyl methacrylate, chitosan, methyl methacrylate, acrylic acid, butyl acrylate and styrene in a certain proportion.

[0010] In at least some embodiments, the latex coating structure also includes: an adjusting frame, an adjusting screw, a synchronous wheel, an adjusting seat, an adjusting plate and a connecting seat; the adjusting frame is fixedly arranged on the other side of the top of the coating box; the adjusting screw is rotatably arranged inside the adjusting frame, and the adjusting screw and the adjusting frame are symmetrically arranged in two groups; one group of adjusting screws is fixedly arranged on the shaft end of the motor device, and the motor device is fixedly arranged on the top of the adjusting frame; two groups of synchronous wheels are arranged, and the two groups of synchronous wheels are respectively fixedly arranged on the outside of the two groups of adjusting screws, and a synchronous belt device is installed between the two groups of synchronous wheels; the adjusting seat is arranged on the outside of the adjusting screw through a threaded connection, and the adjusting seat is slidably arranged on the inside of the adjusting frame through a dovetail groove; the adjusting plate is rotatably arranged on the outside of the adjusting seat; the connecting seat is rotatably arranged on the outside of the end of the adjusting plate, and the connecting seat is fixedly arranged on the outside of the sliding seat.

[0011] In at least some embodiments, the drying component includes: support columns, a drying rack, a fan, a fixed frame and an electric heating tube; the support columns are fixedly arranged on the outside of the coating box, and the support columns are symmetrically arranged in four groups; the drying rack is fixedly arranged between two groups of support columns, and the drying rack is symmetrically arranged in two groups; the fan is fixedly arranged inside the drying rack, and the fan is arranged in a rectangular array, and a dustproof net is arranged on the outside of the fan; the fixed frame is fixedly arranged on the inside of the drying rack, and a dustproof net is fixedly arranged on the inside of the fixed frame; the fixed frame is symmetrically arranged in two groups, and straw paper is movably arranged between the two groups of fixed frames; the electric heating tube is fixedly arranged inside the fixed frame, and the electric heating tube is arranged in an S-shaped structure.

[0012] In at least some embodiments, the driving structure includes: a driving frame and a driving roller; the driving frame is fixedly arranged between the tops of two groups of drying racks, and there are two groups of driving frames; the driving roller is rotatably arranged between the two groups of driving frames, and there are two groups of driving rollers, and straw paper is transported between the two groups of driving rollers; the driving roller is also fixedly arranged at the shaft end of the driving motor, and the driving motor is fixedly arranged on the outside of the driving frame.

[0013] In at least some embodiments, the paper rolling device includes: a paper rolling seat, a rotating screw, a driving seat and a vertical frame; the paper rolling seat is fixedly installed on the outside of the coating box; the rotating screw is rotatably arranged inside the paper rolling seat, and the rotating screw is fixedly arranged on the shaft end of the motor device, and the motor device is fixedly arranged on the outside of the paper rolling seat; the driving seat is arranged on the outside of the rotating screw by a threaded connection, and the driving seat is slidably arranged inside the paper rolling seat; two groups of vertical frames are arranged, and one group of vertical frames is fixedly arranged on the top of the paper rolling seat, and the other group of vertical frames is fixedly arranged on the top of the driving seat.

[0014] In at least some embodiments, the paper rolling device also includes: a drive shaft head, a connecting block, a paper rolling drum and a connecting hole; the drive shaft head is rotatably arranged inside the top side of the vertical frame, and two groups of drive shaft heads are symmetrically arranged; one group of drive shaft heads is fixedly arranged on the shaft end of the motor device, and the motor device is fixedly arranged on the outside of the vertical frame; the connecting block is fixedly arranged on the outside of the drive shaft head, and the connecting block is arranged in a hexagonal shape; the paper rolling drum is arranged between the two groups of drive shaft heads, and straw paper is wound on the outside of the paper rolling drum; the connecting holes are opened inside both sides of the paper rolling drum, and connecting blocks are slidably arranged inside the connecting holes.

[0015] The present invention discloses a nanocellulose-based modified straw paper production device and a process thereof, comprising the following steps:

[0016] 1. Mix bamboo pulp, coniferous wood pulp and broadleaf wood pulp in proportion and put them into a pulper box, add water to a concentration of . to .%, and then crush for 10 minutes; then modify and ultrasonically treat nanocellulose, polyester-modified dimethylpolysiloxane and defoamer to make cellulose into short-chain polysaccharides, and further evenly free in the solution to generate modified cellulose solution; add the modified cellulose solution into the pulper box to mix the modified cellulose solution with the wood pulp solution in the pulper box; use the pulping main The modified cellulose solution is fully mixed with the pulp solution in the pulper box by the shaft and pulping teeth A and the secondary pulping shaft and pulping teeth B; the mixed pulp is then pumped into the front pulp tank by the first pulp pump; water is added to adjust the concentration, and the mixed pulp is then pumped into the refiner by the second pulp pump, and the fibers in the mixed pulp are cut and filamented by the refiner; the pulp liquid in the refiner is then pumped into the rear pulp tank by the third pulp pump; finally, the pulp in the rear pulp tank is pumped into the headbox of the three-layer stacked wire forming papermaking machine by the flushing pump;

[0017] 2. The wood pulp enters the headbox of the three-layer stacked mesh forming papermaking machine, and then talcum powder, calcium carbonate and titanium dioxide are added and mixed evenly; the three-layer stacked mesh forming papermaking machine produces straw paper with a three-layer structure of face paper, core paper and face paper;

[0018] 3. The straw paper enters the coating box through the auxiliary roller A; the environmentally friendly reinforced latex is evenly coated on the surface of the straw paper; then the driving structure drives the straw paper to move inside the drying component, so that the surface of the straw paper is evenly coated with the environmentally friendly reinforced latex and is dried; environmentally friendly, high-stiffness and high-water-resistant straw paper is made; the straw paper is rolled up by the paper rolling device for later use.

[0019] Beneficial Effects

[0020] 1. The present invention, by mixing modified cellulose solution with wood pulp, can release the organic groups on cellulose and combine nano-scale cellulose with wood fibers, so that the originally disordered wood fibers form a hierarchical network structure, and achieve temperature tolerance through the free organic groups on nano-scale cellulose, and further reduce the direct contact between water molecules and wood fibers, and by coating the surface of straw paper with environmentally friendly reinforced latex, the stiffness and water resistance of the straw paper can be improved, thereby extending the softening time of the modified straw paper; at the same time, paper straws made of natural plant fibers and environmentally friendly water-resistant reinforced latex are used to replace plastic straws, which have good water resistance and good printing effect; and the plant fibers are biodegradable and do not contain toxic substances, ensuring environmental protection and health issues and having good water resistance and printing effect.

[0021] 2. The present invention, by providing a synchronous wheel and a synchronous belt device, can make the two sets of adjusting screws rotate synchronously, so that the two sets of adjusting seats drive the two sets of sliding seats to slide simultaneously through the two sets of adjusting plates and the connecting seats, so that the distance between the coating roller A and the coating roller B can be adjusted; thereby, the residence time of the straw paper in the coating box and the immersion coating time can be controlled; this is beneficial to controlling the coating effect of the environmentally friendly reinforced latex.

[0022] 3. The present invention, by providing a fan and an S-shaped electric heating tube, can enable the fan to use wind force to blow the heat generated by the electric heating tube to the straw paper, so that the environmentally friendly reinforced latex coated on the surface of the straw paper can be quickly dried, thereby enhancing the convenience and practicality of the production device.

[0023] 4. The present invention, by providing a rotating screw and a driving seat, can enable the rotating screw to drive the top vertical frame to move horizontally through the driving seat, so that the distance between the two groups of connecting blocks can be adjusted; thereby, the paper roll can be easily and conveniently installed and disassembled, which is conducive to removing the rolled straw paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0025] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0026] In the attached picture:

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0028] Figure 2 It is a schematic structural diagram of a pulper box, a front stock tank, a refiner, a rear stock tank and a three-layer stacked wire forming papermaking machine of the present invention.

[0029] Figure 3It is a schematic cross-sectional structural diagram of a pulper box of the present invention.

[0030] Figure 4 It is a schematic diagram of the structure of the pulping main shaft and the pulping secondary shaft of the present invention.

[0031] Figure 5 It is a schematic diagram of the upper surface structure of the coating box of the present invention.

[0032] Figure 6 It is a schematic cross-sectional structural diagram of a coating box of the present invention.

[0033] Figure 7 It is a structural schematic diagram of the adjustment seat, the adjustment plate and the connecting seat of the present invention.

[0034] Figure 8 It is a schematic diagram of the connection structure between the drying component and the driving structure of the present invention.

[0035] Fig. 9 It is a schematic diagram of the structure of the fixing frame and its interior of the present invention.

[0036] Fig.10 It is a schematic diagram of the disassembled structure of the paper rolling device of the present invention.

[0037] Reference numerals list

[0038] 1. Pulping machine box; 101. Pulping main shaft; 102. Pulping tooth A; 103. Auxiliary box; 104. Bevel gear A; 105. Pulping secondary shaft; 106. Pulping tooth B; 107. Bevel gear B;

[0039] 2. Fore pulp tank; 201. First pulp pump;

[0040] 3. pulping machine; 301. second pulp pump;

[0041] 4. Rear pulp pool; 401. The third pulp pump;

[0042] 5. Three-layer stacked wire forming papermaking machine; 501. Pulp pump;

[0043] 6. Latex coating structure; 601. Coating box; 602. Auxiliary roller A; 603. Coating roller A; 604. Sliding seat; 605. Coating roller B; 606. Auxiliary roller B; 607. Adjusting frame; 608. Adjusting screw; 609. Synchronous wheel; 6010. Adjusting seat; 6011. Adjusting plate; 6012. Connecting seat;

[0044] 7. Drying assembly; 701. Support column; 702. Drying rack; 703. Fan; 704. Fixed rack; 705. Electric heating tube;

[0045] 8. Driving structure; 801. Driving frame; 802. Driving roller;

[0046] 9. Paper reel device; 901. Paper reel seat; 902. Rotating screw rod; 903. Driving seat; 904. Vertical frame; 905. Driving shaft head; 906. Connecting block; 907. Paper reel; 908. Connecting hole;

[0047] 10. Paper straws. DETAILED DESCRIPTION

[0048] In order to make the purpose, scheme and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of the specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the usual meanings in the art. The same reference numerals in the drawings represent the same components.

[0049] Example 1: Please refer to Figures 1 to 10 As shown:

[0050] The present invention provides a nanocellulose-based modified straw paper production device and a process thereof, comprising a pulper box 1, a front pulp tank 2, a pulper 3, a rear pulp tank 4, a three-layer stacked net forming paper machine 5 and straw paper 10; a first pulp pump 201 is fixedly installed between the pulper box 1 and the front pulp tank 2, and a second pulp pump 301 is fixedly installed between the front pulp tank 2 and the pulper 3; a third pulp pump 401 is fixedly installed between the pulper 3 and the rear pulp tank 4, and a flushing pump 501 is fixedly installed between the rear pulp tank 4 and the three-layer stacked net forming paper machine 5, and straw paper 10 is transported in the paper outlet of the three-layer stacked net forming paper machine 5;

[0051] In the disclosed embodiment, a latex coating structure 6 is fixedly provided on the outer side of the three-layer stacked web forming papermaking machine 5, and a drying component 7 is fixedly provided on the top of the latex coating structure 6; a driving structure 8 is fixedly provided on the top of the drying component 7, and a paper winding device 9 is fixedly provided on the outer side of the latex coating structure 6; the latex coating structure 6 includes: a coating box 601, an auxiliary roller A602, a coating roller A603, a sliding seat 604, a coating roller B605 and an auxiliary roller B606; the coating box 601 is fixedly installed on the outer side of the three-layer stacked web forming papermaking machine 5, and the interior of the coating box 601 is filled with environmentally friendly reinforced latex; the auxiliary roller A602 is rotatably provided on one side of the top of the coating box 601, and the top of the auxiliary roller A602 is in contact with the bottom of the straw paper 10; the coating roller A603 is rotatably arranged inside the coating box 601; the sliding seat 604 is slidably arranged on both sides of the coating box 601 through a dovetail groove, and there are two groups of sliding seats 604; the coating roller B605 is rotatably arranged between the two groups of sliding seats 604, and the coating roller B605 and the coating roller A603 are located on the same horizontal line, and the bottoms of the coating rollers B605 and A603 are both in contact with the top of the straw paper 10; the auxiliary roller B606 is rotatably arranged on the top of the coating box 601, and there are two groups of auxiliary rollers B606, and the straw paper 10 is transported between the two groups of auxiliary rollers B606; the first pulp pump 201 can pump the slurry in the pulping machine box 1 into the front pulp pool 2, and the second pulp pump 301 can pump the slurry in the front pulp pool 2 into the pulping machine 3; the third pulp pump 401 can pump the pulp in the pulper 3 into the post-pulp pool 4, and the flushing pump 501 can pump the pulp in the post-pulp pool 4 into the three-layer stacked net forming papermaking machine 5; a pulping main shaft 101 is rotatably arranged inside the pulping machine box 1, and the pulping main shaft 101 is fixedly arranged on the shaft end of the motor device, and the motor device is fixedly arranged on the outside of the pulping machine box 1; a pulping tooth A102 is fixedly arranged on the outside of the pulping main shaft 101, and an auxiliary box 103 is rotatably arranged on the outside of the pulping main shaft 101; a bevel gear A104 is fixedly arranged on the outside of the pulping main shaft 101, and the bevel gear A104 is located inside the auxiliary box 103; a pulping secondary shaft 105 is rotatably arranged between the auxiliary box 103 and the inside of the pulping machine box 1, and the outside of the pulping secondary shaft 105 A pulping tooth B106 is fixedly provided; a bevel gear B107 is fixedly provided at the top of the pulping secondary shaft 105, and the bevel gear B107 is meshed with the bevel gear A104, and the pulping secondary shaft 105 and the bevel gear B107 are symmetrically provided in four groups; the environmentally friendly reinforced latex filled in the coating box 601 is a mixture of dimethyl itaconate, water, sodium dodecyl sulfate, nonylphenol polyoxyethylene ether, dicyclopentenyloxyethyl methacrylate, chitosan, methyl methacrylate, acrylic acid, butyl acrylate and styrene in a certain proportion; its specific function is: by coating the surface of the straw paper 10 with the environmentally friendly reinforced latex, the stiffness and water resistance of the straw paper 10 can be improved; thereby prolonging the softening time of the modified straw paper;At the same time, paper straws made of natural plant fibers and environmentally friendly water-resistant reinforced latex are used to replace plastic straws, which have good water resistance and good printing effect; and plant fibers are biodegradable and do not contain toxic substances, ensuring environmental protection and health issues and having good water resistance and good printing effect. ;

[0052] Example 2: Please refer to Figures 6 to 9As shown: On the basis of Example 1, the latex coating structure 6 also includes: an adjusting frame 607, an adjusting screw 608, a synchronous wheel 609, an adjusting seat 6010, an adjusting plate 6011 and a connecting seat 6012; the adjusting frame 607 is fixedly arranged on the other side of the top of the coating box 601; the adjusting screw 608 is rotatably arranged inside the adjusting frame 607, and the adjusting screw 608 and the adjusting frame 607 are symmetrically arranged in two groups; one group of adjusting screws 608 is fixedly arranged on the shaft end of the motor device, and the motor device is fixedly arranged on the top of the adjusting frame 607; there are two groups of synchronous wheels 609, and the two groups of synchronous wheels 609 are respectively fixedly arranged on the outside of the two groups of adjusting screws 608, and the two groups of synchronous wheels 609 are equipped with a synchronous belt device; the adjusting seat 6010 is arranged on the outside of the adjusting screw 608 through a threaded connection, and the adjusting seat 6010 is slidably arranged on the inside of the adjusting frame 607 through a dovetail groove; the adjusting plate 6011 is rotatably arranged on the outside of the adjusting seat 6010; the connecting seat 6012 is rotatably arranged on the outside of the end of the adjusting plate 6011, and the connecting seat 6012 is fixedly arranged on the outside of the sliding seat 604; the drying component 7 includes: a support column 701, a drying frame 702, a fan 703, a fixed frame 704 and an electric heating tube 705; the support column 701 is fixedly arranged on the outside of the coating box 601, and the support column 701 is symmetrically arranged in four groups; the drying frame 702 is fixedly arranged at Between the two groups of support columns 701, there are two groups of drying racks 702 symmetrically arranged; the fan 703 is fixedly arranged inside the drying rack 702, and the fan 703 is arranged in a rectangular array, and a dust-proof net is arranged on the outside of the fan 703; the fixed frame 704 is fixedly arranged on the inner side of the drying rack 702, and a dust-proof net is fixedly arranged on the inner side of the fixed frame 704; the fixed frame 704 is symmetrically arranged in two groups, and straw paper 10 is movably arranged between the two groups of fixed frames 704; the electric heating tube 705 is fixedly arranged inside the fixed frame 704, and the electric heating tube 705 is arranged in an S-shaped structure; the driving structure 8 includes: a driving frame 801 and a driving roller 802; the driving frame 801 is fixedly arranged on the two groups of drying racks The driving roller 802 is rotatably arranged between the two driving frames 801, and two driving rollers 802 are arranged, and straw paper 10 is transported between the two driving rollers 802; the driving roller 802 is also fixedly arranged on the shaft end of the driving motor, and the driving motor is fixedly arranged on the outside of the driving frame 801; its specific function is: by providing a synchronous wheel 609 and a synchronous belt device, the two groups of adjusting screws 608 can rotate synchronously, so that the two groups of adjusting seats 6010 drive the two groups of sliding seats 604 to slide at the same time through the two groups of adjusting plates 6011 and the connecting seats 6012, so that the distance between the coating roller A603 and the coating roller B605 is adjusted.

[0053] Example 3: Please refer to Figure 5 and Fig.10As shown: on the basis of the first and second embodiments, the paper rolling device 9 comprises: a paper rolling seat 901, a rotating screw rod 902, a driving seat 903, a vertical frame 904, a driving shaft head 905, a connecting block 906, a paper rolling cylinder 907 and a connecting hole 908; the paper rolling seat 901 is fixedly installed on the outside of the coating box 601; the rotating screw rod 902 is rotatably arranged inside the paper rolling seat 901, and the rotating screw rod 902 is fixedly arranged on the shaft end of the motor device, and the motor device is fixedly arranged on the outside of the paper rolling seat 901; the driving seat 903 is arranged on the outside of the rotating screw rod 902 through a threaded connection, and the driving seat 903 is slidably arranged inside the paper rolling seat 901; the vertical frame 904 is provided with two groups, and one group of vertical frames 904 is fixedly arranged on the top of the paper rolling seat 901, and the other group of vertical frames 904 is fixedly arranged on the top of the driving seat 903; the driving shaft head 905 is rotatably arranged on the vertical frame 9 04 inside the top side, and two groups of drive shaft heads 905 are symmetrically arranged; one group of drive shaft heads 905 is fixedly arranged on the shaft end of the motor device, and the motor device is fixedly arranged on the outside of the vertical frame 904; the connecting block 906 is fixedly arranged on the outside of the drive shaft head 905, and the connecting block 906 is arranged in a hexagon; the paper roll 907 is arranged between the two groups of drive shaft heads 905, and the outside of the paper roll 907 is wound with straw paper 10; connecting holes 908 are opened inside the two sides of the paper roll 907, and connecting blocks 906 are slidably arranged inside the connecting holes 908; its specific function is: by providing a rotating screw rod 902 and a driving seat 903, the rotating screw rod 902 can drive the top vertical frame 904 to move horizontally through the driving seat 903, so that the spacing between the two groups of connecting blocks 906 can be adjusted; and then the paper roll 907 can be easily and conveniently installed and disassembled.

[0054] The present invention discloses a nanocellulose-based modified straw paper production device and a process thereof, comprising the following steps:

[0055] 1. Mix bamboo pulp, coniferous wood pulp and broadleaf wood pulp in proportion and put them into a pulper box 1, add water to a concentration of 6.0 to 7.5% and then crush for 20 to 25 minutes; then modify and ultrasonically treat nanocellulose, polyester-modified dimethylpolysiloxane and defoamer to make cellulose into short-chain polysaccharides, and further evenly dissociate in the solution to generate a modified cellulose solution; add the modified cellulose solution into the pulper box 1 to mix the modified cellulose solution with the wood pulp solution in the pulper box 1; use the pulping main shaft 101 and the pulping tooth A1 to mix the modified cellulose solution with the wood pulp solution in the pulper box 1; 02 and the pulping secondary shaft 105 and the pulping teeth B106 fully mix the modified cellulose solution with the wood pulp solution in the pulper box 1; then the first pulp pump 201 is used to pump the obtained mixed wood pulp into the front pulp tank 2; water is added to adjust the concentration, and then the mixed wood pulp is pumped into the refiner 3 through the second pulp pump 301, and the fibers in the mixed wood pulp are cut and separated by the refiner 3; then the wood pulp liquid in the refiner 3 is pumped into the rear pulp tank 4 by the third pulp pump 401; finally, the wood pulp in the rear pulp tank 4 is pumped into the headstock box of the three-layer stacked wire forming papermaking machine 5 through the flushing pump 501;

[0056] 2. The wood pulp enters the headbox of the three-layer stacked web forming papermaking machine 5, and then talcum powder, calcium carbonate, and titanium dioxide are added and stirred evenly; the three-layer stacked web forming papermaking machine 5 produces a straw paper 10 having a three-layer structure of face paper, core paper, and face paper;

[0057] 3. The straw paper 10 enters the coating box 601 through the auxiliary roller A602, so that the environmentally friendly reinforced latex is evenly coated on the surface of the straw paper 10. Then, the driving structure 8 drives the straw paper 10 to move inside the drying component 7, so that the surface of the straw paper 10 is evenly coated with the environmentally friendly reinforced latex and is dried. Thus, the environmentally friendly, high-stiffness and high-water-resistant straw paper 10 is made. The straw paper 10 is rolled up by the paper rolling device 9 for use.

[0058] Specific usage and function of this embodiment: In the present invention, when used, bamboo pulp, coniferous wood pulp and broadleaf wood pulp are mixed in proportion and then put into a pulping machine box 1, and water is added to a concentration of 6.0 to 7.5% and then crushed for 20 to 25 minutes; then nanocellulose, polyester-modified dimethyl polysiloxane and defoaming agent are modified and ultrasonically treated to make cellulose into short-chain polysaccharides, and further evenly free in the solution to generate a modified cellulose solution; the modified cellulose solution is added to the pulping machine box 1, and the motor device is started to drive the pulping main shaft 101 to rotate, and the pulping main shaft 101 drives the four groups of pulping secondary shafts 105 to rotate in both directions through the bevel gear A104 and the bevel gear B107; thereby, the pulping main shaft 101 and the pulping secondary shaft 105 are connected to each other. The secondary pulp shaft 105 crushes and mixes the modified cellulose solution and the wood pulp solution in the pulper box 1 in multiple directions through the pulping teeth A102 and the pulping teeth B106; the modified cellulose solution and the wood pulp solution in the pulper box 1 are fully mixed; then the obtained mixed wood pulp is pumped into the front pulp pool 2 by the first pulp pump 201; water is added to adjust the concentration, and then the mixed wood pulp is pumped into the refiner 3 by the second pulp pump 301, and the fibers in the mixed wood pulp are cut and separated by the refiner 3; then the wood pulp liquid in the refiner 3 is pumped into the rear pulp pool 4 by the third pulp pump 401; the flow rate and ratio of the wood pulp liquid are adjusted in the rear pulp pool 4; finally, the wood pulp in the rear pulp pool 4 is pumped into the flow pulp of the three-layer stacked net forming papermaking machine 5 by the flushing pump 501 box; the wood pulp enters the flow box of the three-layer stacked mesh forming papermaking machine 5, and then talcum powder, calcium carbonate and titanium dioxide are added and stirred evenly; the three-layer stacked mesh forming papermaking machine 5 produces straw paper 10 with a three-layer structure of face paper, core paper and face paper; the straw paper 10 is placed between the top of the auxiliary roller A602 and the bottom of the coating roller A603 and the coating roller B605, and the straw paper 10 is placed between the two groups of auxiliary rollers B606 and the two groups of driving rollers 802; the straw paper 10 is driven to move in the coating box 601 by the two groups of driving rollers 802, so that the environmentally friendly reinforced latex in the coating box 601 is evenly coated on the surface of the straw paper 10; and the excess environmentally friendly reinforced latex on the surface of the straw paper 10 is squeezed back into The coating box 601; the straw paper 10 coated with the environmentally friendly enhanced latex passes through two sets of fixing frames 704; the fan 703 uses wind force to blow the heat generated by the electric heating tube 705 to the straw paper 10, so that the environmentally friendly enhanced latex evenly coated on the surface of the straw paper 10 is dried, so that the environmentally friendly, high-stiffness and high-water-resistant straw paper 10 is made; finally, the end of the straw paper 10 is fixed to the outside of the paper roll 907, and the motor device is started, and the motor device drives a group of driving shaft heads 905 and a group of connecting blocks 906 to rotate; its driving shaft heads 905 and connecting blocks 906 drive the paper roll 907 to rotate through another group of driving shaft heads 905 and connecting blocks 906, so that the paper roll 907 rolls up the environmentally friendly, high-stiffness and high-water-resistant straw paper 10 for standby use;

[0059] The starting motor device drives the rotating screw 902 to rotate, and the rotating screw 902 drives a group of vertical frames 904 to move horizontally through the driving seat 903, so that the distance between the two groups of connecting blocks 906 is adjusted; thus, the paper roll 907 can be easily and conveniently installed and disassembled, which is conducive to removing the rolled paper straw 10; the starting motor device drives a group of adjusting screws 608 to rotate, and the adjusting screws 608 drive the adjusting seat 6010 to move up and down, and the adjusting seat 6010 drives the sliding seat 604 to slide horizontally through the adjusting plate 6011 and the connecting seat 6012; the two groups of adjusting screws 608 rotate simultaneously through the synchronous wheel 609 and the synchronous belt device, so that the two groups of sliding seats 604 move horizontally synchronously, so that the distance between the coating roller A603 and the coating roller B605 is adjusted, so that the moving path length and residence time of the paper straw 10 in the coating box 601 can be controlled; which is conducive to controlling the coating time of the paper straw 10.

Claims

1. A modified straw paper production device based on nanocellulose, characterized in that: include: A pulper box (1), a front pulp tank (2), a pulper (3), a rear pulp tank (4), a three-layer stacked net forming papermaking machine (5) and straw paper (10); a first pulp pump (201) is fixedly installed between the pulper box (1) and the front pulp tank (2), and a second pulp pump (301) is fixedly installed between the front pulp tank (2) and the pulper (3); a third pulp pump (401) is fixedly installed between the pulper (3) and the rear pulp tank (4), and a flushing pump (501) is fixedly installed between the rear pulp tank (4) and the three-layer stacked net forming papermaking machine (5), and straw paper (10) is transported in the paper outlet of the three-layer stacked net forming papermaking machine (5); A latex coating structure (6) is fixedly arranged on the outside of the three-layer stacked net forming papermaking machine (5), and a drying component (7) is fixedly arranged on the top of the latex coating structure (6); a driving structure (8) is fixedly arranged on the top of the drying component (7), and a paper winding device (9) is fixedly arranged on the outside of the latex coating structure (6); the latex coating structure (6) includes: a coating box (601), an auxiliary roller A (602), a coating roller A (603), a sliding seat (604), a coating roller B (605) and an auxiliary roller B (606); the coating box (601) is fixedly installed on the outside of the three-layer stacked net forming papermaking machine (5), and the inside of the coating box (601) is filled with environmentally friendly reinforced latex; the auxiliary roller A (602) is rotatably arranged on one side of the top of the coating box (601), and The top of the auxiliary roller A (602) is in contact with the bottom of the straw paper (10); the coating roller A (603) is rotatably arranged inside the coating box (601); the sliding seat (604) is slidably arranged on both sides of the coating box (601) through a dovetail groove, and there are two groups of sliding seats (604); the coating roller B (605) is rotatably arranged between the two groups of sliding seats (604), and the coating roller B (605) and the coating roller A (603) are located on the same horizontal line, and the bottom of the coating roller B (605) and the coating roller A (603) are both in contact with the top of the straw paper (10); the auxiliary roller B (606) is rotatably arranged at the top of the coating box (601), and there are two groups of auxiliary rollers B (606), and the straw paper (10) is transported between the two groups of auxiliary rollers B (606).

2. The nanocellulose-based modified straw paper production device according to claim 1, characterized in that: The first pulp pump (201) can pump the pulp in the pulper box (1) into the front pulp tank (2), and the second pulp pump (301) can pump the pulp in the front pulp tank (2) into the pulper (3); the third pulp pump (401) can pump the pulp in the pulper (3) into the rear pulp tank (4), and the flushing pump (501) can pump the pulp in the rear pulp tank (4) into the three-layer stacked wire forming papermaking machine (5).

3. The nanocellulose-based modified straw paper production device according to claim 2, characterized in that: A pulping main shaft (101) is rotatably arranged inside the pulping machine box (1), and the pulping main shaft (101) is fixedly arranged on the shaft end of the motor device, and the motor device is fixedly arranged on the outside of the pulping machine box (1); a pulping tooth A (102) is fixedly arranged on the outside of the pulping main shaft (101), and an auxiliary box (103) is rotatably arranged on the outside of the pulping main shaft (101); a bevel gear A (104) is fixedly arranged on the outside of the pulping main shaft (101), and the bevel gear A (104) is located at A pulping secondary shaft (105) is rotatably arranged inside the auxiliary box (103); between the auxiliary box (103) and the inside of the pulping machine box (1), and a pulping tooth B (106) is fixedly arranged on the outside of the pulping secondary shaft (105); a bevel gear B (107) is fixedly arranged on the top of the pulping secondary shaft (105), and the bevel gear B (107) is meshed with the bevel gear A (104), and the pulping secondary shaft (105) and the bevel gear B (107) are symmetrically arranged in four groups.

4. The nanocellulose-based modified straw paper production device according to claim 3, characterized in that: The environmentally friendly reinforced latex filled inside the coating box (601) is prepared by mixing dimethyl itaconate, water, sodium lauryl sulfate, nonylphenol polyoxyethylene ether, dicyclopentenyloxyethyl methacrylate, chitosan, methyl methacrylate, acrylic acid, butyl acrylate and styrene in a certain proportion.

5. The nanocellulose-based modified straw paper production device according to claim 4, characterized in that: The latex coating structure (6) further comprises: an adjusting frame (607), an adjusting screw (608), a synchronous wheel (609), an adjusting seat (6010), an adjusting plate (6011) and a connecting seat (6012); the adjusting frame (607) is fixedly arranged on the other side of the top of the coating box (601); the adjusting screw (608) is rotatably arranged inside the adjusting frame (607), and the adjusting screw (608) and the adjusting frame (607) are both symmetrically arranged in two groups; one group of adjusting screws (608) is fixedly arranged on the shaft end of the motor device, and the motor device is fixedly arranged on the top of the adjusting frame (607); the synchronous wheel (60 9) are provided with two groups, and the two groups of synchronous wheels (609) are respectively fixedly arranged on the outside of the two groups of adjusting screws (608), and a synchronous belt device is installed between the two groups of synchronous wheels (609); the adjusting seat (6010) is arranged on the outside of the adjusting screw (608) through a threaded connection, and the adjusting seat (6010) is slidably arranged on the inside of the adjusting frame (607) through a dovetail groove; the adjusting plate (6011) is rotatably arranged on the outside of the adjusting seat (6010); the connecting seat (6012) is rotatably arranged on the outside of the end of the adjusting plate (6011), and the connecting seat (6012) is fixedly arranged on the outside of the sliding seat (604).

6. The nanocellulose-based modified straw paper production device according to claim 5, characterized in that: The drying assembly (7) comprises: a support column (701), a drying rack (702), a fan (703), a fixing rack (704) and an electric heating tube (705); the support column (701) is fixedly arranged outside the coating box (601), and the support column (701) is symmetrically arranged in four groups; the drying rack (702) is fixedly arranged between two groups of support columns (701), and the drying rack (702) is symmetrically arranged in two groups; the fan (703) is fixedly arranged inside the drying rack (702) , and the fans (703) are arranged in a rectangular array, and a dustproof net is arranged on the outside of the fans (703); the fixing frame (704) is fixedly arranged on the inside of the drying frame (702), and a dustproof net is fixedly arranged on the inside of the fixing frame (704); two groups of fixing frames (704) are symmetrically arranged, and straw paper (10) is movably arranged between the two groups of fixing frames (704); the electric heating tube (705) is fixedly arranged inside the fixing frame (704), and the electric heating tube (705) is arranged in an S-shaped structure.

7. The nanocellulose-based modified straw paper production device according to claim 6, characterized in that: The driving structure (8) comprises: a driving frame (801) and a driving roller (802); the driving frame (801) is fixedly arranged between the tops of two groups of drying frames (702), and the driving frame (801) is provided with two groups; the driving roller (802) is rotatably arranged between the two groups of driving frames (801), and the driving roller (802) is provided with two groups, and straw paper (10) is transported between the two groups of driving rollers (802); the driving roller (802) is also fixedly arranged at the end of the driving motor shaft, and the driving motor is fixedly arranged outside the driving frame (801).

8. The nanocellulose-based modified straw paper production device according to claim 7, characterized in that: The paper rolling device (9) comprises: a paper rolling seat (901), a rotating screw rod (902), a driving seat (903) and a vertical frame (904); the paper rolling seat (901) is fixedly installed on the outside of the coating box (601); the rotating screw rod (902) is rotatably arranged inside the paper rolling seat (901), and the rotating screw rod (902) is fixedly arranged on the shaft end of the motor device, and the motor device is fixedly arranged on the outside of the paper rolling seat (901); the driving seat (903) is arranged on the outside of the rotating screw rod (902) through a threaded connection, and the driving seat (903) is slidably arranged inside the paper rolling seat (901); two groups of vertical frames (904) are arranged, and one group of vertical frames (904) is fixedly arranged on the top of the paper rolling seat (901), and the other group of vertical frames (904) is fixedly arranged on the top of the driving seat (903).

9. The nanocellulose-based modified straw paper production device according to claim 8, characterized in that: The paper rolling device (9) further comprises: a driving shaft head (905), a connecting block (906), a paper rolling drum (907) and a connecting hole (908); the driving shaft head (905) is rotatably arranged inside the top side of the vertical frame (904), and two groups of driving shaft heads (905) are symmetrically arranged; one group of driving shaft heads (905) is fixedly arranged on the shaft end of the motor device, and the motor device is fixedly arranged on the outside of the vertical frame (904); the connecting block (906) is fixedly arranged on the outside of the driving shaft head (905), and the connecting block (906) is arranged in a hexagonal shape; the paper rolling drum (907) is arranged between the two groups of driving shaft heads (905), and straw paper (10) is wound on the outside of the paper rolling drum (907); the connecting hole (908) is opened inside both sides of the paper rolling drum (907), and the connecting block (906) is slidably arranged inside the connecting hole (908).

10. The nanocellulose-based modified straw paper production device and process according to claim 9, characterized in that: The following steps are involved:

1. Mix bamboo pulp, coniferous wood pulp and broadleaf wood pulp in proportion and put them into a pulping machine box (1), add water to a concentration of 6.0 to 7.5% and then crush for 20 to 25 minutes; then modify and ultrasonically treat nanocellulose, polyester-modified dimethyl polysiloxane and a defoaming agent to forge cellulose into short-chain polysaccharides, which are further uniformly freed in the solution to generate a modified cellulose solution; The modified cellulose solution is added to a pulper box (1) so that the modified cellulose solution is mixed with the wood pulp solution in the pulper box (1); the modified cellulose solution and the wood pulp solution in the pulper box (1) are fully mixed by using a pulping main shaft (101) and pulping teeth A (102) and a pulping secondary shaft (105) and pulping teeth B (106); the obtained mixed wood pulp is then pumped into a front pulp tank (2) by using a first pulp pump (201); water is added to adjust the concentration, and the mixed wood pulp is then pumped into a refiner (3) by a second pulp pump (301), and the fibers in the mixed wood pulp are cut and filamented by using the refiner (3); the wood pulp liquid in the refiner (3) is then pumped into a rear pulp tank (4) by using a third pulp pump (401); and finally, the wood pulp in the rear pulp tank (4) is pumped into a headstock box of a three-layer stacked web forming papermaking machine (5) by a flushing pump (501); 2. The wood pulp enters the headbox of a three-layer stacked web forming papermaking machine (5), and then talcum powder, calcium carbonate, and titanium dioxide are added and stirred evenly; a straw paper (10) having a three-layer structure of a face paper, a core paper, and a face paper is produced by the three-layer stacked web forming papermaking machine (5); 3. The straw paper (10) enters the coating box (601) through the auxiliary roller A (602); the environmentally friendly reinforced latex is evenly coated on the surface of the straw paper (10); then the driving structure (8) drives the straw paper (10) to move inside the drying component (7), so that the surface of the straw paper (10) is evenly coated with the environmentally friendly reinforced latex and is dried; thus, environmentally friendly, high-stiffness and high-water-resistant straw paper (10) is produced; and the straw paper (10) is rolled up using the paper rolling device (9) for standby use.

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