CN114672949A - Supercritical CO2 flax roving scouring and bleaching bobbin - Google Patents
Supercritical CO2 flax roving scouring and bleaching bobbin Download PDFInfo
- Publication number
- CN114672949A CN114672949A CN202210218574.0A CN202210218574A CN114672949A CN 114672949 A CN114672949 A CN 114672949A CN 202210218574 A CN202210218574 A CN 202210218574A CN 114672949 A CN114672949 A CN 114672949A
- Authority
- CN
- China
- Prior art keywords
- fluid
- pipe
- bleaching
- supercritical
- bobbin
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 241000208202 Linaceae Species 0.000 title claims abstract description 29
- 235000004431 Linum usitatissimum Nutrition 0.000 title claims abstract description 29
- 238000004061 bleaching Methods 0.000 title claims abstract description 29
- 238000009991 scouring Methods 0.000 title claims description 13
- 239000012530 fluid Substances 0.000 claims abstract description 82
- 238000009826 distribution Methods 0.000 claims abstract description 24
- 238000009835 boiling Methods 0.000 claims abstract description 16
- 238000005192 partition Methods 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 17
- 238000003825 pressing Methods 0.000 claims description 7
- 239000000284 extract Substances 0.000 abstract description 11
- 239000006185 dispersion Substances 0.000 abstract description 4
- 238000004090 dissolution Methods 0.000 abstract description 3
- 238000000605 extraction Methods 0.000 abstract description 3
- 150000003384 small molecules Chemical class 0.000 abstract description 3
- 239000000835 fiber Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 229920005610 lignin Polymers 0.000 description 2
- 229920001277 pectin Polymers 0.000 description 2
- 239000001814 pectin Substances 0.000 description 2
- 235000010987 pectin Nutrition 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 229920002488 Hemicellulose Polymers 0.000 description 1
- 241000282414 Homo sapiens Species 0.000 description 1
- 241000208204 Linum Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000006911 enzymatic reaction Methods 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 238000009897 hydrogen peroxide bleaching Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- UKLNMMHNWFDKNT-UHFFFAOYSA-M sodium chlorite Chemical compound [Na+].[O-]Cl=O UKLNMMHNWFDKNT-UHFFFAOYSA-M 0.000 description 1
- 229960002218 sodium chlorite Drugs 0.000 description 1
- 238000009899 sodium chlorite bleaching Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
- D06B23/20—Arrangements of apparatus for treating processing-liquids, -gases or -vapours, e.g. purification, filtration or distillation
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Extraction Or Liquid Replacement (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
The invention discloses a supercritical CO2 flax roving boiling and bleaching bobbin, which comprises a fluid distribution pipe, an upper pressure plate and a lower pressure plate, wherein the upper pressure plate and the lower pressure plate are positioned at two ends of the fluid distribution pipe; the fluid distribution pipe comprises a fluid inner pipe and a fluid outer pipe, and a plurality of partition plates arranged along the length direction of the fluid distribution pipe are arranged between the fluid inner pipe and the fluid outer pipe to uniformly partition the area between the fluid inner pipe and the fluid outer pipe; the fluid inner pipe and the fluid outer pipe are both porous structures. According to the invention, CO2 is dispersed efficiently, and efficient dissolution and dispersion of high-viscosity small-molecule extracts are realized during extraction.
Description
Technical Field
The invention relates to the field of flax roving scouring and bleaching bobbins, in particular to a supercritical CO2 flax roving scouring and bleaching bobbin.
Background
Flax (scientific name: Linum usittissimum) is the first high-quality plant fiber used by human beings, and accounts for 1.5 percent of the total amount of natural fiber. With the gradual exhaustion of petroleum resources, flax is increasingly paid attention and paid attention to by people due to the characteristics of excellent moisture absorption, quick drying, ventilation, smoothness, antibiosis, health care and the like, and is widely applied to the fields of textile clothing, aerospace, medical health and the like. The hemicellulose, lignin and pectin contained in the flax fiber are difficult to remove, and the crystallinity and orientation degree of flax fiber molecules are high, so that the extensibility, elasticity, bundling property, softness and crimpability of the fiber are easily influenced, and a lot of inconvenience is brought to the spinning and weaving process of the flax fiber. The traditional flax boiling and bleaching process uses water as a medium, and sequentially comprises the working procedures of alkali boiling, sodium chlorite bleaching, water washing, hydrogen peroxide bleaching, water washing, acid washing and water washing, so that the requirements on the strength and whiteness of flax roving fibers in the spinning working procedure are met, and high-grade yarns and high-grade products are processed. However, the traditional flax boiling and bleaching process has the defects of high water consumption and energy consumption, long process flow, high economic cost and the like. Meanwhile, after the boiling and bleaching production, the discharged sewage contains a large amount of sodium chlorite, sodium carbonate, hydrogen peroxide and other auxiliary agents, which brings serious pollution to the environment.
In the supercritical CO2, the slight changes of pressure and temperature can cause the obvious difference of the density of the CO2 fluid and show as the obvious change of the fluid density, so that the substrate is easier to dissolve, the enzymatic reaction rate is accelerated, the removal rate of hemp pectin, lignin and the like is higher, and the requirements of cleaning, boiling and bleaching the flax roving can be met. However, compared with water, the high permeability and diffusivity of the supercritical CO2 are easy to cause uneven boiling and bleaching; meanwhile, more extracts are easily attached to the surface of the boiling and bleaching yarn tube, so that the boiling and bleaching quality is reduced. The development of the special flax roving scouring and bleaching bobbin is the key for solving the problems.
Disclosure of Invention
The invention aims to provide a supercritical CO2 flax roving scouring and bleaching bobbin.
The invention has the innovation point that CO2 is dispersed efficiently, and the high-efficiency dissolution and dispersion of the high-viscosity small-molecule extract are realized during extraction.
In order to achieve the purpose, the technical scheme of the invention is as follows: a supercritical CO2 flax roving boiling and bleaching bobbin comprises a fluid distribution pipe, an upper pressure plate and a lower pressure plate, wherein the upper pressure plate and the lower pressure plate are positioned at two ends of the fluid distribution pipe; the fluid distribution pipe comprises a fluid inner pipe and a fluid outer pipe, and a plurality of partition plates arranged along the length direction of the fluid distribution pipe are arranged between the fluid inner pipe and the fluid outer pipe to uniformly partition the area between the fluid inner pipe and the fluid outer pipe; the fluid inner pipe and the fluid outer pipe are both porous structures.
Furthermore, the upper pressure plate and the lower pressure plate are of hollow structures, and the interiors of the upper pressure plate and the lower pressure plate are communicated with the fluid distribution pipe; the upper convex connecting column is inserted into the upper concave connecting port, and a circulating hole communicated with the lower pressing disc is arranged at the connecting part; fluid ejection holes are formed in the disc surfaces of one sides, facing the fluid distribution pipe, of the upper pressing disc and the lower pressing disc. The supercritical CO2 can carry more extract to be ejected from the fluid ejection hole, so that the upward and downward penetration is increased, and the efficient dissolving and dispersing of the extract are realized.
Furthermore, a lower annular magnet is arranged in the upper concave connecting port, and an upper annular magnet attracted with the lower annular magnet in the upper concave connecting post is arranged on the upper convex connecting post. Convenient connection among the barrels is realized.
Furthermore, a sealing groove is arranged on the upper concave connecting port or the upper convex connecting post, and a telescopic groove corresponding to the sealing groove is arranged on the upper convex connecting post or the upper concave connecting port. The sealing requirement under the conditions of high temperature and high pressure is met.
Furthermore, a backflow impeller for pushing fluid to the lower pressure plate and a support for supporting the backflow impeller to rotate are arranged in the upper pressure plate. And the CO2 is blown downwards by the action of the return impeller to realize the efficient cleaning of attachments on the surfaces of the bobbins and the rovings.
Furthermore, the aperture on the fluid inner pipe is 3-7 mm, and the aperture on the fluid outer pipe is 2-5 mm. The gradually-changed hole structure can meet the high-efficiency dispersing function of CO2 boiling and bleaching, and the boiling and bleaching are more uniform; the outer fluid tube has a smaller pore size than the inner fluid tube because the outer fluid tube is easier to clean and the smaller pore size of the outer fluid tube facilitates more uniform dispersion of CO2 in the outer layer.
Furthermore, the aperture of the fluid ejection hole is 2-7 mm.
Further, the sealing ring is a polytetrafluoroethylene high-temperature-resistant sealing ring.
The invention has the beneficial effects that:
1. according to the invention, CO2 is dispersed efficiently, and efficient dissolution and dispersion of high-viscosity small-molecule extracts are realized during extraction.
2. According to the invention, the lower pressure plate and the upper pressure plate are provided with the hollow structures with the fluid jet holes, so that CO2 can be efficiently dispersed, and the penetrating effect of the upper surface and the lower surface of the flax roving is improved.
3. According to the invention, the reflux impeller is arranged at the upper pressure plate and rotates under the action of CO2, so that CO2 is blown downwards, and the efficient cleaning of attachments on the surfaces of the bobbins and the roving is realized.
4. According to the invention, the efficient and convenient sealing connection between the bobbins is realized through the annular magnet and the sealing ring, and the sealing requirements of high temperature and high pressure are met.
Drawings
FIG. 1 is a schematic view of the present invention.
Fig. 2 is a schematic structural view of the upper platen.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
Example 1: as shown in fig. 1 and 2, a supercritical CO2 flax roving scouring and bleaching bobbin comprises a fluid distribution pipe 1, and an upper pressure plate 2 and a lower pressure plate 3 which are positioned at two ends of the fluid distribution pipe 1, wherein an upper concave connecting port 4 is arranged on the lower pressure plate 3, an upper convex connecting column 5 for inserting the upper concave connecting port 4 of the lower pressure plate is arranged on the upper pressure plate 2, and the upper concave connecting port 4 and the upper convex connecting column 5 are communicated with the fluid distribution pipe 1; a lower annular magnet 4.1 is arranged in the upper concave connecting port 4, and an upper annular magnet 5.1 which is attracted with the lower annular magnet 4.1 in the upper concave connecting port 4 is arranged on the upper convex connecting column 5. The upper concave connecting port 4 or the upper convex connecting post 5 is provided with a sealing groove 7, a sealing ring is arranged in the sealing groove 7, and the sealing ring is a flexible groove 8 which is arranged on the upper convex connecting post 5 of the polytetrafluoroethylene high-temperature-resistant sealing ring or on the upper concave connecting port 4 and corresponds to the sealing groove 7 and is used for being clamped into the sealing ring 7.1. The fluid distribution pipe 1 comprises a fluid inner pipe 1.1 and a fluid outer pipe 1.2, a plurality of partition plates 1.3 which are arranged along the length direction of the fluid distribution pipe 1 are arranged between the fluid inner pipe 1.1 and the fluid outer pipe 1.2 to evenly partition the area between the fluid inner pipe 1.1 and the fluid outer pipe 1.2; the inner fluid tube 1.1 and the outer fluid tube 1.2 are both porous structures. The aperture on the fluid inner pipe 1.1 is 3-7 mm, and the aperture on the fluid outer pipe 1.2 is 2-5 mm. The upper pressure plate 2 and the lower pressure plate 3 are of hollow structures, and the interiors of the upper pressure plate 2 and the lower pressure plate 3 are communicated with the fluid distribution pipe 1; the upper convex connecting column 5 is inserted into the upper concave connecting port 4, and a connecting part is provided with a circulating hole 11 communicated with the lower pressing disc 3; go up pressure disk 2 and 3 down and all be equipped with fluid shooting hole 6 towards one side quotations of fluid distribution pipe 1 on the pressure disk, the aperture of fluid shooting hole 6 is 2~7 mm. The upper pressure plate 2 is internally provided with a backflow impeller 9 for pushing fluid to the lower pressure plate 3 and a bracket 10 for supporting the backflow impeller 9 to rotate.
During operation, a plurality of flax roving boiling and bleaching bobbins are spliced and combined, during splicing and combination, the flax roving boiling and bleaching bobbins are inserted into the upper concave connecting port 4 through the upper convex connecting column 5, then the extract carried by the supercritical CO2 is introduced into the fluid distribution pipe 1 from the upper concave connecting port 4 at the bottommost end, the extract carried by the supercritical CO2 is slowly dispersed out through the fluid inner pipe 1.1 and the fluid outer pipe 1.2 and is sprayed out from the fluid spraying holes 6 at the upper pressure plate 2 and the lower pressure plate 3 to perform soaking and bleaching on flax roving, the extract carried by the supercritical CO2 enters the upper pressure plate 2 and then blows the backflow impeller 9 to rotate, on one hand, the downward boiling and bleaching effect of CO2 can be enhanced, and on the other hand, when the possibly attached extract needs to be cleaned subsequently, the extract can be dissolved and cleaned by utilizing CO 2.
The described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Claims (7)
1. A supercritical CO2 flax roving boiling and bleaching bobbin comprises a fluid distribution pipe, an upper pressure plate and a lower pressure plate, wherein the upper pressure plate and the lower pressure plate are positioned at two ends of the fluid distribution pipe; the fluid distribution pipe is characterized by comprising a fluid inner pipe and a fluid outer pipe, wherein a plurality of partition plates arranged along the length direction of the fluid distribution pipe are arranged between the fluid inner pipe and the fluid outer pipe to uniformly partition the area between the fluid inner pipe and the fluid outer pipe; the fluid inner pipe and the fluid outer pipe are both of porous structures.
2. The supercritical CO2 flax roving scouring and bleaching bobbin of claim 1, wherein the upper platen and the lower platen are of hollow structure, and both the insides of the upper platen and the lower platen are communicated with a fluid distribution pipe; the upper convex connecting column is inserted into the upper concave connecting port, and a circulating hole communicated with the lower pressing disc is formed in the connecting position of the upper convex connecting column and the upper concave connecting port; fluid ejection holes are formed in the disc surfaces of one sides, facing the fluid distribution pipe, of the upper pressing disc and the lower pressing disc.
3. The supercritical CO2 flax roving scouring and bleaching bobbin of claim 1, wherein a lower annular magnet is arranged in the upper concave connecting port, and an upper annular magnet attracted with the lower annular magnet in the upper concave connecting port is arranged on the upper connecting post.
4. The supercritical CO2 flax roving scouring and bleaching bobbin as claimed in claim 1, wherein the upper concave connecting port or the upper convex connecting port is provided with a sealing groove, and the upper convex connecting port or the upper concave connecting port is provided with a telescopic groove corresponding to the sealing groove.
5. The supercritical CO2 flax roving scouring and bleaching bobbin of claim 1, wherein a return impeller for pushing fluid to the lower platen and a support for supporting the return impeller for rotation are provided in the upper platen.
6. The supercritical CO2 flax roving scouring and bleaching bobbin of claim 1, wherein the aperture on the inner fluid pipe is 3-7 mm, and the aperture on the outer fluid pipe is 2-5 mm.
7. The supercritical CO2 flax roving scouring and bleaching bobbin of claim 2, wherein the aperture of the fluid ejection hole is 2-7 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210218574.0A CN114672949B (en) | 2022-03-08 | 2022-03-08 | Supercritical CO2 flax roving boiling and bleaching bobbin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210218574.0A CN114672949B (en) | 2022-03-08 | 2022-03-08 | Supercritical CO2 flax roving boiling and bleaching bobbin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114672949A true CN114672949A (en) | 2022-06-28 |
| CN114672949B CN114672949B (en) | 2023-08-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210218574.0A Active CN114672949B (en) | 2022-03-08 | 2022-03-08 | Supercritical CO2 flax roving boiling and bleaching bobbin |
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| Country | Link |
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| CN (1) | CN114672949B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004323982A (en) * | 2003-04-21 | 2004-11-18 | Howa Kk | Method for impregnation treatment and textile product subjected to impregnation treatment by the same |
| CN103877917A (en) * | 2014-04-21 | 2014-06-25 | 中国科学院重庆绿色智能技术研究院 | Device and method for controlling internal boundary flow of supercritical water oxidation reactor |
| CN105040317A (en) * | 2015-07-14 | 2015-11-11 | 大连工业大学 | Supercritical carbon dioxide beam dyeing frame, dyeing kettle and dyeing method |
| US20180258585A1 (en) * | 2016-11-21 | 2018-09-13 | Dalian Polytechnic University | Supercritical fluid dyeing and finishing system and method |
| CN210657563U (en) * | 2019-04-24 | 2020-06-02 | 青岛即发集团股份有限公司 | Magnetic sealing yarn group for supercritical CO2 anhydrous dyeing |
| CN214733508U (en) * | 2020-12-30 | 2021-11-16 | 黑龙江金达麻业有限公司 | Snap ring embedded type flax roving bobbin |
-
2022
- 2022-03-08 CN CN202210218574.0A patent/CN114672949B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004323982A (en) * | 2003-04-21 | 2004-11-18 | Howa Kk | Method for impregnation treatment and textile product subjected to impregnation treatment by the same |
| CN103877917A (en) * | 2014-04-21 | 2014-06-25 | 中国科学院重庆绿色智能技术研究院 | Device and method for controlling internal boundary flow of supercritical water oxidation reactor |
| CN105040317A (en) * | 2015-07-14 | 2015-11-11 | 大连工业大学 | Supercritical carbon dioxide beam dyeing frame, dyeing kettle and dyeing method |
| US20180258585A1 (en) * | 2016-11-21 | 2018-09-13 | Dalian Polytechnic University | Supercritical fluid dyeing and finishing system and method |
| CN210657563U (en) * | 2019-04-24 | 2020-06-02 | 青岛即发集团股份有限公司 | Magnetic sealing yarn group for supercritical CO2 anhydrous dyeing |
| CN214733508U (en) * | 2020-12-30 | 2021-11-16 | 黑龙江金达麻业有限公司 | Snap ring embedded type flax roving bobbin |
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| Publication number | Publication date |
|---|---|
| CN114672949B (en) | 2023-08-04 |
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