CN116446130A - Supercritical anhydrous dyeing equipment and application and dyeing method thereof - Google Patents
Supercritical anhydrous dyeing equipment and application and dyeing method thereof Download PDFInfo
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- 238000004043 dyeing Methods 0.000 title claims abstract description 320
- 238000000034 method Methods 0.000 title claims abstract description 20
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 242
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 121
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 121
- 230000001105 regulatory effect Effects 0.000 claims abstract description 30
- 230000000712 assembly Effects 0.000 claims abstract description 5
- 238000000429 assembly Methods 0.000 claims abstract description 5
- 239000000975 dye Substances 0.000 claims description 264
- 238000003756 stirring Methods 0.000 claims description 29
- 238000002347 injection Methods 0.000 claims description 28
- 239000007924 injection Substances 0.000 claims description 28
- 238000003860 storage Methods 0.000 claims description 19
- 239000011229 interlayer Substances 0.000 claims description 17
- 238000000926 separation method Methods 0.000 claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 238000011084 recovery Methods 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 12
- 239000004753 textile Substances 0.000 claims description 11
- 239000004744 fabric Substances 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 9
- 239000012774 insulation material Substances 0.000 claims description 8
- 239000010410 layer Substances 0.000 claims description 8
- 238000004064 recycling Methods 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 3
- 238000012840 feeding operation Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 21
- 239000003086 colorant Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 8
- 239000012530 fluid Substances 0.000 description 8
- ZDORFLXCSSFUIE-UHFFFAOYSA-N 2-[n-(2-acetyloxyethyl)-4-[(2-chloro-4-nitrophenyl)diazenyl]-3-(propanoylamino)anilino]ethyl acetate Chemical compound CCC(=O)NC1=CC(N(CCOC(C)=O)CCOC(C)=O)=CC=C1N=NC1=CC=C([N+]([O-])=O)C=C1Cl ZDORFLXCSSFUIE-UHFFFAOYSA-N 0.000 description 7
- 238000004090 dissolution Methods 0.000 description 5
- 238000011160 research Methods 0.000 description 5
- ROPYWXVRNREIQD-UHFFFAOYSA-N 2-[n-(2-cyanoethyl)-4-[(2,6-dichloro-4-nitrophenyl)diazenyl]anilino]ethyl acetate Chemical compound C1=CC(N(CCC#N)CCOC(=O)C)=CC=C1N=NC1=C(Cl)C=C([N+]([O-])=O)C=C1Cl ROPYWXVRNREIQD-UHFFFAOYSA-N 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000003763 carbonization Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 229920004933 Terylene® Polymers 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
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- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
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- 238000007599 discharging Methods 0.000 description 1
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- 230000003631 expected effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012821 model calculation Methods 0.000 description 1
- 238000009980 pad dyeing Methods 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
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Classifications
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- 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
- D06B9/00—Solvent-treatment of textile materials
- D06B9/02—Solvent-treatment of textile materials solvent-dyeing
-
- 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
- D06B23/14—Containers, e.g. vats
-
- 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
- D06B23/205—Arrangements of apparatus for treating processing-liquids, -gases or -vapours, e.g. purification, filtration or distillation for adding or mixing constituents of the treating material
-
- 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
- D06B23/22—Arrangements of apparatus for treating processing-liquids, -gases or -vapours, e.g. purification, filtration or distillation for heating
-
- 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
- D06B9/00—Solvent-treatment of textile materials
- D06B9/06—Solvent-treatment of textile materials with recovery of the solvent
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
The invention provides supercritical anhydrous dyeing equipment, application and dyeing method thereof, comprising the following steps: the dyeing device comprises a carbon dioxide gas supply assembly, a temperature and pressure regulating assembly, a first dye bin assembly, a dyeing circulating system, an automatic control assembly and a main control system, wherein the carbon dioxide gas supply assembly is communicated with the temperature and pressure regulating assembly; the carbon dioxide gas supply assembly, the temperature and pressure adjusting assembly, the first dye bin assembly and the dyeing circulation system are all connected with the automatic control assembly so as to control and remotely monitor the assemblies; the main control system is connected with the automatic control component, and monitors the dye-uptake condition of the dye in the dyeing kettle in real time, and adjusts and controls the feeding of the dyeing bin to the color matching kettle through the automatic control component according to the solubility characteristic of specific dye. The production condition of the whole equipment is regulated and controlled by the automatic control system, so that the dyeing efficiency can be greatly improved, the dyeing cost is reduced, various dye formulas can be developed, various colors are realized, and the supercritical anhydrous dyeing formula library is enriched.
Description
Technical Field
The invention relates to the field of supercritical anhydrous dyeing, in particular to supercritical anhydrous dyeing equipment capable of realizing batch accurate feeding according to dye characteristics, application and a dyeing method thereof, which are applicable to a flexible supercritical anhydrous dyeing technology capable of adjusting dye proportion at any time according to different requirements.
Background
The traditional textile dyeing processing method has high energy consumption, low productivity and large water consumption, a large amount of colored wastewater is generated to have adverse effect on the ecological environment, and the improvement of the wastewater discharge or recovery pretreatment requirement leads to the improvement of the production cost and the increase of the enterprise burden. The transformation of textile enterprises and the technological upgrading are realized by combining the factors. The progress of the conversion to ecological energy-saving and technical industries is accelerated, and one of the aspects is to get rid of the constraint of the traditional dyeing technology and explore the efficient, green, economic, energy-saving and emission-reducing printing and dyeing technology.
Supercritical anhydrous dyeing is widely applied in the textile field, is an ideal ecological dyeing technology for replacing the traditional dyeing technology, can avoid water resource waste and pollution, realizes sustainable development of industry, and has extremely high economic and ecological advantages. The technology adopts supercritical carbon dioxide as a dyeing medium, and the dye is dissolved and sent to fiber pores, so that the dye is quickly and uniformly dyed on fabrics, and after dyeing is finished, the working pressure is only required to be reduced, gaseous carbon dioxide and the dye are fully separated, the operation processes of cleaning, drying and the like are not required, the unused dye can be recycled, and the carbon dioxide is also recycled for the next printing and dyeing.
In 1988, schollmeyer applied for a process for dyeing textile fibers using supercritical carbon dioxide instead of water. A new idea is provided for solving the problem of textile dyeing and finishing pollution, a plurality of researchers study the supercritical carbon dioxide dyeing process, and a dyeing system gradually develops from a laboratory-scale 400mL autoclave to an industrial large-scale autoclave. In 2008, the establishment of DyeCoo company, the manufacturer who is specially engaged in the production of terylene and cotton production type supercritical dyeing equipment marks the beginning of the industrialized application stage of supercritical carbon dioxide dyeing technology. In 2010, 68Kg of production type supercritical dyeing equipment manufactured by DyeCoo corporation was used for producing anhydrous dyeing sportswear in the Cooperation of Thailand and Yeh group company. In 2018, industrial supercritical fluid pad dyeing machine prototype was developed by the university of Shandong Wang Weijiang subject group and the Qingdao national nation Industrial science and technology development Co-operation. In 2017, the institute of Chinese sciences and the Fujian Xun zip technology Co., ltd developed supercritical anhydrous dyeing equipment for horizontal two-tank 100L.
The dyeing effect is not only related to transformation and upgrading of dyeing equipment, but also related to the dye dissolution degree in a dyeing system, further influences the dye uptake, and research on the solubility of different dyes in the system plays an important role in optimizing the dyeing process and improving the dyeing efficiency. In 2019, the new subject group of the institute of welfare and architecture Lin Jin of the Chinese academy adopts supercritical dynamic internal circulation equipment to measure and compare the solubility of the traditional trichromatic dye in binary and multicomponent systems, explores the influence of factors such as the temperature and pressure of carbon dioxide, the structure of the dye and the like on the dyeing effect, and uses four semi-empirical models and two compressed gas models to study the solubility of the dye in different systems. The dissolution and loss of the dye in the supercritical carbon dioxide fluid are quantitatively researched, and the known dissolution effect and compatibility effect between the dyes are combined, so that the dye dosage can be effectively controlled according to the production target, and the production process is economically maximized.
In the anhydrous dyeing process, the dye is dissolved in carbon dioxide to dye the cloth, but the situations of adhesion, carbonization and the like can occur, and the loss in the dye conveying process is considered, so that the dye utilization rate is less than 100%, and the improvement of the effective utilization of the dye is extremely important. The anhydrous dyeing equipment is upgraded and reformed, the production condition is controlled as much as possible according to the performance research of the known dye, the dye loss is reduced, the feeding production is carried out under the optimal condition, and the dye utilization rate is improved. In the continuous research, development, updating and upgrading of supercritical anhydrous dyeing equipment, the dye proportion is continuously expanded and enriched, the automation level of the existing supercritical equipment is still required to be improved so as to obtain high dyeing efficiency, and a flexible and adjustable color matching scheme is required to meet the requirements of different clients, so that profit is maximized.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent. To this end the invention provides a supercritical anhydrous dyeing apparatus comprising:
a carbon dioxide gas supply assembly;
a temperature and pressure regulating assembly, the carbon dioxide gas supply assembly being in communication with the temperature and pressure regulating assembly;
The first dye bin assembly comprises a plurality of first dye bins which are connected in parallel, and each first dye bin is communicated with the air outlet of the temperature and pressure adjusting assembly;
the dyeing circulation system comprises a circulation pump, a first color matching kettle and a first dyeing kettle, wherein the air inlet end of the circulation pump is communicated with the air outlet of the first dyeing kettle through a pipeline, the air outlet end of the circulation pump is communicated with the air inlet of the first color matching kettle, the dye injection inlet of the first color matching kettle is communicated with each first dye bin, the air inlet of the first color matching kettle is communicated with the air outlet of the temperature and pressure regulating assembly, and the dye discharge port of the first color matching kettle is communicated with the feed inlet of the first dyeing kettle; the carbon dioxide gas supply assembly, the temperature and pressure adjusting assembly, the first color matching kettle and the first dyeing kettle are connected in series to form a first gas supply branch, and the circulating pump, the first color matching kettle and the first dyeing kettle are connected in series to form a first dyeing circulating loop;
the automatic control component is connected with the carbon dioxide gas supply component, the temperature and pressure regulating component, the first dye bin component and the dyeing circulating system so as to control and remotely monitor the components; and
The main control system is connected with the automatic control component, monitors the dye-uptake condition of the dye in the dyeing kettle in real time, and adjusts and controls the dye bin to feed the color matching kettle through the automatic control component according to the solubility characteristic of specific dye.
The supercritical anhydrous dyeing equipment provided by the embodiment of the invention has at least the following beneficial effects: the main control system can monitor the dye-uptake condition of the dye in the dyeing kettle in real time, regulate and control the accurate feeding of the dyeing bin to the color matching kettle according to the solubility and other characteristics of specific dye, realize quick and accurate feeding, ensure good dyeing effect of cloth and effectively control the cost. The production condition of the whole equipment is regulated and controlled through the automatic control system, intelligent automatic production is realized, the material adding/subtracting and feeding are performed in real time according to the dyeing state and the property of the researched dye, and the dye loss condition under the production condition is considered, so that the dyeing efficiency can be greatly improved, the dyeing cost is reduced, various dye formulas can be developed, various colors are realized, and the supercritical anhydrous dyeing formula library is enriched.
Optionally, the first dye bin performs feeding operation according to the known solubility of the dye and the feeding amount, and according to the flow rate of the carbon dioxide, and reasonably divides the feeding time so as to perform batch feeding.
Optionally, the first dye bin is connected with the first color matching kettle through feeding pipes, and each feeding pipe is uniformly distributed on a kettle cover of the first color matching kettle;
the inner side of the first dye bin is provided with a first non-stick coating, the middle layer is provided with a first temperature control interlayer, the outer side of the first dye bin is provided with a dye bin outer kettle body, and the first temperature control interlayer contains a temperature control circulation module or a temperature control heat insulation material;
the first dye bin is provided with a first dye injection opening for injecting dye, a dye bin air inlet connected with an air outlet of the temperature and pressure adjusting assembly and a first dye discharge opening connected with the first color matching kettle, a dye injection control valve is arranged on the first dye injection opening, a dye bin air inlet control valve is arranged on the dye bin air inlet, a first dye outlet control valve is arranged on the first dye discharge opening, and the automatic control assembly comprises the dye injection control valve, the dye bin air inlet control valve and the first dye outlet control valve.
Optionally, a stirring paddle is arranged in the first color matching kettle, the stirring paddle is connected to a stirring shaft, the stirring shaft is connected with a stirring shaft control module, the stirring shaft control module controls the rotating speed, and the stirring shaft control module is arranged on the kettle body of the first color matching kettle;
The inner side of the first color matching kettle is provided with a second non-stick coating, the middle layer is provided with a second temperature control interlayer, the outer side of the first color matching kettle is provided with a color matching kettle body, and the second temperature control interlayer contains a temperature control circulation module or a temperature control heat insulation material;
the first color matching kettle is provided with a second dye injection opening connected with the first dye discharge opening, a color matching kettle air inlet connected with an air outlet of the temperature and pressure adjusting component and a second dye discharge opening connected with the first dyeing kettle, the color matching kettle air inlet is provided with a color matching kettle air inlet control valve, the second dye discharge opening is provided with a second dye outlet control valve, and the automatic control component comprises a second air inlet control valve and a second dye outlet control valve.
Optionally, a main air inlet control valve of the dyeing bin is arranged between the first dyeing bin and the temperature and pressure adjusting component, a main air inlet control valve of the color matching kettle is arranged between the first color matching kettle and the temperature and pressure adjusting component, an air inlet control valve of the dyeing kettle is arranged between the first color matching kettle and the first dyeing kettle, and an air outlet control valve of the dyeing kettle is arranged at an air outlet of the first dyeing kettle.
Optionally, the first dyeing bin, the first color matching kettle and the first dyeing kettle are internally provided with a temperature sensor, a flow sensor and a pressure sensor, and the main control system receives parameters of the temperature sensor, the flow sensor and the pressure sensor and regulates and controls the temperature and the pressure in the first dyeing bin, the first color matching kettle and the first dyeing kettle through the automatic control component according to the parameters.
Optionally, the carbon dioxide gas supply assembly comprises a carbon dioxide steel bottle and a carbon dioxide storage tank communicated with the carbon dioxide steel bottle, the temperature and pressure regulating assembly comprises a subcooler, a carbon dioxide booster pump and a heat exchanger which are sequentially connected, the subcooler is communicated with the carbon dioxide storage tank, and the heat exchanger is communicated with the first color matching kettle and the first dyeing bin;
carbon dioxide output control valves are arranged between the carbon dioxide steel cylinder and the carbon dioxide storage tank, between the carbon dioxide storage tank and the subcooler, and between the carbon dioxide pressurizing pump and the heat exchanger.
Optionally, the supercritical anhydrous dyeing equipment further comprises a separation and recovery assembly and a second dye bin assembly, wherein the separation and recovery assembly is communicated with the air outlet of the first dyeing kettle;
the second dye bin assembly comprises a plurality of second dye bins which are connected in parallel, and each second dye bin is communicated with the air outlet of the temperature and pressure adjusting assembly;
the dyeing circulation system further comprises a second color matching kettle and a second dyeing kettle, wherein the air inlet end of the circulation pump is communicated with the air outlet of the second dyeing kettle through a pipeline, the air outlet end of the circulation pump is communicated with the air inlet of the second color matching kettle, the dye injection inlet of the second color matching kettle is communicated with each second dye bin, the air inlet of the second color matching kettle is communicated with the air outlet of the temperature and pressure regulating assembly, and the dye discharge port of the second color matching kettle is communicated with the feed inlet of the second dyeing kettle; the carbon dioxide gas supply assembly, the temperature and pressure adjusting assembly, the second color matching kettle and the second dyeing kettle are connected in series to form a second gas supply branch, and the circulating pump, the second color matching kettle and the second dyeing kettle are connected in series to form a second dyeing circulating loop;
The second dye bin assembly and the separation recovery assembly are connected with the automatic control assembly so as to control and remotely monitor the assemblies.
The embodiment of the invention also provides application of the supercritical anhydrous dyeing equipment in dyeing.
The embodiment of the invention also provides a dyeing method according to the supercritical anhydrous dyeing equipment, which comprises the following steps:
s1: placing a dyeing bracket wound with a textile to be dyed in a dyeing kettle, heating and pressurizing the dyeing kettle to preset parameters, and starting a carbon dioxide gas supply assembly to introduce carbon dioxide;
s2: the main control system controls the feeding amount of each dye bin according to the dyeing requirement and the solubility characteristic of known dyes, the dyes are fed in batches, dissolved in carbon dioxide and conveyed to a color matching kettle, and the dyes are uniformly mixed under the stirring action of the color matching kettle;
s3: the temperature and the pressure in the dyeing circulation system reach preset dyeing process parameters, a circulation pump is started to carry out dyeing circulation, the current condition is maintained, circulation dyeing is continued for 15-60min, meanwhile, the main control system monitors the dyeing condition of the dye in the dyeing kettle in real time, and the feeding amount of each dyeing bin is regulated and controlled in time until the dyeing time is reached;
S4: separating and recycling the gas in the dyeing kettle through a separation and recycling component, and taking out the dyeing bracket wound with the textile when the pressure of the dyeing circulation loop and the dyeing kettle is less than 0.5MPa, so that dyeing is completed;
preferably, the dyeing further comprises the following steps after completion: and (3) putting the dyeing bracket wound with the cloth to be dyed into a dyeing kettle again, and repeating the steps S1-S4 to dye again.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a process flow diagram of supercritical anhydrous dyeing equipment capable of achieving accurate feeding in one embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a dyeing silo in accordance with one embodiment of the invention;
FIG. 3 is a top view of a dyeing silo in accordance with one embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of a color kettle in accordance with one embodiment of the present invention;
fig. 5 is a top view of a color kettle in accordance with one embodiment of the present invention.
Reference numerals:
In FIG. 1, 1 is a carbon dioxide steel cylinder, 2 is a carbon dioxide storage tank, 3 is a subcooler, 4 is a carbon dioxide pressurizing pump, 5 is a heat exchanger, 6 is a circulating pump, 7-1, 7-2, 7-3 are first dyeing bins, and 7-4, 7-5, 7-6 are second dyeing bins; 8-1 and 8-2 are respectively a first color matching kettle and a second color matching kettle, 9-1 and 9-2 are respectively a first dyeing kettle and a second dyeing kettle, 10 is a separation and recovery component, 11-1, 11-2 and 11-3 are carbon dioxide output control valves, 12-1 and 12-2 are main inlet control valves of a dye bin, 13-1 and 13-2 are main inlet control valves of the color matching kettles, 14-1 and 14-2 are inlet control valves of the dyeing kettles, and 15-1 and 15-2 are outlet control valves of the dyeing kettles.
In fig. 2 and 3, 16 is a dye injection control valve, 17 is a dye bin air inlet control valve, 18 is a dye bin air inlet, 19 is a first dye injection port, 20 is a dye bin outer kettle body, 21 is a first temperature control interlayer, 22 is a first non-stick coating, 23 is a first dye outlet control valve, and 24 is a first dye discharge port.
In fig. 4 and 5, 25 is a second dye injection port, 26 is a color matching kettle air inlet control valve, 27 is a color matching kettle air inlet, 28 is a stirring shaft control module, 29 is a stirring shaft, 30 is a color matching kettle outer kettle body, 31 is a second temperature control interlayer, 32 is a second non-stick coating, 33 is a stirring paddle, 34 is a second dye outlet control valve, and 35 is a second dye discharge port.
Detailed Description
The technical scheme of the invention will be further described in detail below with reference to specific embodiments. It is to be understood that the following examples are illustrative only and are not to be construed as limiting the scope of the invention. All techniques implemented based on the above description of the invention are intended to be included within the scope of the invention.
According to the supercritical anhydrous dyeing equipment capable of realizing accurate feeding according to the characteristics of the dye, according to the research of the solubility of the known dye in a system and the compatibility between the dyes, the production condition is adjusted to an optimal state based on the research of a dye solubility theoretical model, the dye dyeing and loss conditions are effectively monitored, the dye dissolution balance is ensured, the batch feeding is carried out according to the dye dyeing and loss conditions in the production process, and the feeding ratio of the three primary colors of dye is scientific and reasonable, so that the accurate feeding is realized, and the dye dyeing effect is best.
Referring to fig. 1, in some embodiments, the supercritical anhydrous dyeing apparatus mainly includes: the device comprises a carbon dioxide gas supply assembly, a temperature and pressure adjusting assembly, a first dye bin assembly, a dyeing circulation system, an automatic control assembly and a main control system.
The temperature and pressure regulating assembly is arranged between the carbon dioxide gas supply assembly and the dyeing circulation system, and is used for regulating the temperature and the pressure, so that the production is controlled under the optimal condition, and the dye loss is controlled at the minimum level.
The first dye bin assembly comprises a plurality of first dye bins which are connected in parallel, and each first dye bin is communicated with the air outlet of the temperature and pressure adjusting assembly; for example, three first dyeing bins may be provided, namely a first dyeing bin 7-1, a first dyeing bin 7-2 and a first dyeing bin 7-3.
The dyeing circulation system comprises a circulation pump 6, a first color matching kettle 8-1 and a first dyeing kettle 9-1, wherein the air inlet end of the circulation pump 6 is communicated with the air outlet of the first dyeing kettle 9-1 through a pipeline, the air outlet end of the circulation pump 6 is communicated with the air inlet of the first color matching kettle 8-1, the dye injection inlet of the first color matching kettle 8-1 is communicated with each first dye bin, the air inlet of the first color matching kettle 8-1 is communicated with the air outlet of the temperature and pressure regulating assembly, and the dye discharge outlet of the first color matching kettle 8-1 is communicated with the feed inlet of the first dyeing kettle 9-1; the carbon dioxide gas supply assembly, the temperature and pressure adjusting assembly, the first color matching kettle 8-1 and the first dyeing kettle 9-1 are connected in series to form a first gas supply branch, and the circulating pump 6, the first color matching kettle 8-1 and the first dyeing kettle 9-1 are connected in series to form a first dyeing circulation loop.
The carbon dioxide gas supply assembly, the temperature and pressure adjusting assembly, the first dye bin assembly and the dyeing circulation system are all connected with the automatic control assembly so as to control and remotely monitor the assemblies; the automatic control component is connected with all components to control and remotely monitor the components, the solubility of each dye bin can be calculated according to a dye solubility model, accurate feeding is controlled, and the pressure, temperature and flow control points of the whole dyeing equipment can be automatically controlled and remotely monitored by combining sensor detection and PLC control software with monitoring software.
The main control system is connected with the automatic control component, and monitors the dye-uptake condition of the dye in the dyeing kettle in real time, and adjusts and controls the feeding of the dyeing bin to the color matching kettle through the automatic control component according to the solubility characteristic of specific dye.
The main control system of the supercritical anhydrous dyeing equipment of the embodiment can monitor the dye-uptake condition of the dye in the dyeing kettle in real time, regulate and control the accurate feeding of the dyeing bin to the color matching kettle according to the solubility and other characteristics of specific dye, realize quick and accurate feeding, ensure good dyeing effect of cloth and effectively control the cost.
The supercritical anhydrous dyeing equipment in the embodiment realizes intelligent automatic production by regulating and controlling the production conditions of the whole equipment through an automatic control system, performs material increasing/decreasing feeding in real time according to the dyeing state and the property of the researched dye by considering the dye loss condition under the production conditions, can greatly improve the dyeing efficiency, reduce the dyeing cost, can develop various dye formulas, realizes various color varieties and enriches a supercritical anhydrous dyeing formula library.
In some embodiments, the first dye bin performs a dosing operation based on the known solubility of the dye in combination with the dosing amount, based on the flow rate of carbon dioxide, and reasonably divides the dosing time to perform batch dosing, thereby achieving efficient dyeing.
When the supercritical fluid dyeing is carried out, the carbon dioxide fluid is driven by the carbon dioxide pressurizing pump 4 to enter three dye bins respectively, and according to the dyeing formula requirement, only the dissolution time of different dyes is controlled based on the solubility model of the different dyes, so that the quantity of the different dyes entering the color matching kettle can be controlled accurately, and the purposes of accurate color matching and subsequent dyeing are realized.
In some embodiments, referring to FIGS. 2 and 3, the first dye house is connected to the first color kettle 8-1 via feed tubes, each of which is uniformly distributed over the lid of the first color kettle 8-1.
The first dye house is provided with a first non-stick coating 22 on the inside thereof to prevent the dye from sticking to the inner wall of the dye house. The middle layer is provided with a first temperature control interlayer 21, the outer side of the dye bin outer kettle body 20 is provided with a temperature control circulation module or a temperature control heat insulation material in the first temperature control interlayer 21; the first dye bin is provided with a first dye injection opening 19 for injecting dye, a dye bin air inlet 18 connected with an air outlet of the temperature and pressure adjusting component and a first dye discharge opening 24 connected with the first color matching kettle 8-1, the first dye injection opening 19 is provided with a dye injection control valve 16, the dye bin air inlet 18 is provided with a dye bin air inlet control valve 17, the first dye discharge opening 24 is provided with a first dye outlet control valve 23, and the automatic control component comprises the dye injection control valve 16, the dye bin air inlet control valve 17 and the first dye outlet control valve 23.
Specifically, the first dye injection inlet 19 is located at the top of the first dye bin, the first dye discharge outlet 24 is located at the bottom of the first dye bin, and the dye bin air inlet 18 is located at the side of the first dye bin.
In some embodiments, a stirring paddle 33 is disposed in the first color matching kettle 8-1, the stirring paddle 33 is connected to a stirring shaft 29, the stirring shaft 29 is connected to a stirring shaft control module 28, the stirring shaft control module 28 controls the rotation speed, and the stirring shaft control module 28 is disposed on the kettle body of the first color matching kettle 8-1, and may specifically be disposed on the kettle body 30 outside the color matching kettle.
The inner side of the first color matching kettle 8-1 is provided with a second non-stick coating 32 for preventing the dye from being stuck. The middle layer is provided with a second temperature control interlayer 31, the outer side of the color matching kettle body 30 is provided with a temperature control circulation module or a temperature control heat insulation material in the second temperature control interlayer 31;
the first color matching kettle 8-1 is provided with a second dye injection opening 25 connected with the first dye discharge opening 24, a color matching kettle air inlet 27 connected with an air outlet of the temperature and pressure adjusting component and a second dye discharge opening 35 connected with the first dyeing kettle 9-1, the color matching kettle air inlet 27 is provided with a second air inlet control valve 26, the second dye discharge opening 35 is provided with a second dye outlet control valve 34, and the automatic control component comprises the second air inlet control valve 26 and the second dye outlet control valve 34.
In some embodiments, a main inlet control valve 12-1 of the dyeing bin is arranged between the first dyeing bin and the temperature and pressure regulating component, a main inlet control valve 13-1 of the color matching kettle is arranged between the first color matching kettle 8-1 and the temperature and pressure regulating component, a main inlet control valve 14-1 of the dyeing kettle is arranged between the first color matching kettle 8-1 and the first dyeing kettle 9-1, and a main outlet control valve 15-1 of the dyeing kettle is arranged at an air outlet of the first dyeing kettle 9-1. The automatic control component can also comprise a dyeing bin main air inlet control valve 12-1, a color matching kettle main air inlet control valve 13-1 and a dyeing kettle air inlet control valve 14-1.
Illustratively, the first dyeing bin, the first color matching kettle 8-1 and the first dyeing kettle 9-1 are respectively provided with a temperature sensor, a flow sensor and a pressure sensor, and the main control system receives parameters of the temperature sensor, the flow sensor and the pressure sensor and regulates and controls the temperature and the pressure in the first dyeing bin, the first color matching kettle 8-1 and the first dyeing kettle 9-1 through an automatic control component according to the parameters. Specifically, a temperature sensor, a flow sensor and a pressure sensor are adopted to monitor the temperature, the pressure and the flow rate in the kettle in real time, analog signals of the temperature, the pressure and the flow rate are converged and then are transmitted to a main control system, the main control system combines all parameter factors to control the flow of the heated and cooled fluid, the temperature difference and the pressure difference are controlled in a proper range, the loss phenomena such as dye carbonization are avoided, and the dye is ensured to be dyed on cloth to achieve the expected effect.
In some embodiments, the carbon dioxide gas supply assembly comprises a carbon dioxide steel bottle 1 and a carbon dioxide storage tank 2 communicated with the carbon dioxide steel bottle 1, the temperature and pressure regulating assembly comprises a subcooler 3, a carbon dioxide pressurizing pump 4 and a heat exchanger 5 which are sequentially connected, the subcooler 3 is communicated with the carbon dioxide storage tank 2, and the heat exchanger 5 is communicated with both a first color matching kettle 8-1 and a first dyeing bin. The temperature and pressure regulating assembly is arranged between the carbon dioxide supply assembly and the dyeing circulation assembly, the production is controlled to be under the optimal condition, and the dye loss is controlled to be at the minimum level.
Wherein, carbon dioxide output control valves are respectively arranged between the carbon dioxide steel cylinder 1 and the carbon dioxide storage tank 2, between the carbon dioxide storage tank 2 and the subcooler 3 and between the carbon dioxide pressurizing pump 4 and the heat exchanger 5, and are respectively a carbon dioxide output control valve 11-1, a carbon dioxide output control valve 11-2 and a carbon dioxide output control valve 11-3.
In some embodiments, the supercritical anhydrous dyeing apparatus further comprises a separation recovery assembly 10 and a second dye bin assembly, the separation recovery assembly 10 being in communication with the air outlet of the first dyeing kettle 9-1;
the second dye bin assembly comprises a plurality of second dye bins (7-4, 7-5 and 7-6) which are connected in parallel, and each second dye bin is communicated with the air outlet of the temperature and pressure adjusting assembly and can be connected with the air outlet of the heat exchanger 5.
The dyeing circulation system further comprises a second color matching kettle 8-2 and a second dyeing kettle 9-2, wherein the air inlet end of a circulation pump 6 is communicated with the air outlet of the second dyeing kettle 9-2 through a pipeline, the air outlet end of the circulation pump 6 is communicated with the air inlet of the second color matching kettle 8-2, the dye injection port of the second color matching kettle 8-2 is communicated with each second dye bin, the air inlet of the second color matching kettle 8-2 is communicated with the air outlet of the temperature and pressure regulating assembly, and the dye discharge port of the second color matching kettle 8-2 is communicated with the feed inlet of the second dyeing kettle 9-2; the carbon dioxide gas supply assembly, the temperature and pressure adjusting assembly, the second color matching kettle 8-2 and the second dyeing kettle 9-2 are connected in series to form a second gas supply branch, the circulating pump 6 is connected in series, and the second color matching kettle 8-2 and the second dyeing kettle 9-2 are connected in series to form a second dyeing circulation loop. The second dye bin assembly and the separation recovery assembly 10 are both connected with an automatic control assembly, so that the automatic control assembly can control and remotely monitor all the assemblies.
Further, a main inlet control valve 12-2 of the dyeing bin is arranged between the second dyeing bin and the temperature and pressure regulating component, a main inlet control valve 13-2 of the color matching kettle is arranged between the second color matching kettle 8-2 and the temperature and pressure regulating component, a dyeing kettle inlet control valve 14-2 is arranged between the second color matching kettle 8-2 and the second dyeing kettle 9-2, and a dyeing kettle outlet control valve 15-2 is arranged at an air outlet of the second dyeing kettle 9-2. The automatic control component can also comprise a dyeing bin main air inlet control valve 12-2, a color matching kettle main air inlet control valve 13-2 and a dyeing kettle air inlet control valve 14-2.
Furthermore, the first dyeing circulation loop is independent of the first air supply branch, the second dyeing circulation loop is independent of the second air supply branch, one or two dyeing circulation loops are selected to be used according to actual production, part of pipelines in the first dyeing circulation loop and part of pipelines in the second dyeing circulation loop can be overlapped, and the valves can be high-pressure valves. The person skilled in the art can also arrange further gas supply branches and dyeing circulation circuits on this basis, which are all within the scope of protection of the present application.
In some embodiments, when the carbon dioxide gas supply assembly is turned on, the carbon dioxide steel cylinder 1, the valve 11-1 between the carbon dioxide steel cylinder 1 and the carbon dioxide storage tank 2, the carbon dioxide output control valve 11-2 between the carbon dioxide storage tank 2 and the subcooler 3, and the carbon dioxide output control valve 11-3 between the carbon dioxide booster pump 4 and the preheater 5 are opened.
When the valves 12-1, 12-2, 13-2, 14-2 and 15-2 are closed and the valves 13-1, 14-1 and 15-1 are opened, the carbon dioxide gas supply assembly only supplies carbon dioxide gas for the first color matching kettle 8-1 and the first dyeing kettle 9-1 to form a first gas supply branch; when the valves 12-1, 12-2, 13-1, 14-1 and 15-1 are closed and the valves 13-2, 14-2 and 15-2 are opened, the carbon dioxide gas supply assembly supplies carbon dioxide gas to the second color matching kettle 8-2 and the second dyeing kettle 9-2 only to form a second gas supply branch.
In some embodiments, the first temperature control interlayer 21 and the second temperature control interlayer 31 contain temperature control circulation modules or temperature control heat insulation materials, so that the temperature of the dyeing bin 7- (1-6) can be effectively controlled, and the dye is prevented from being lost due to external factors such as temperature in the storage process. The dye injection control valve 16 is opened and the dye is stored in each of the dye chambers 7- (1-6) through the first dye injection port 19.
When the accurate feeding process is carried out, the air inlet valves of the valve 12-1 and the dye bin 7- (1-3) are opened, the air inlet valves of the valve 12-2 and the dye bin 7- (4-6) are closed, carbon dioxide enters the color matching kettle 8-1 from the air inlet 18 and carries dye from the discharge port 24, and a first feeding loop is formed; opening air inlet valves of valves 12-2 and 7- (4-6), closing air inlet valves of 12-1 and dye bin 7- (1-3), and enabling carbon dioxide to enter from an air inlet 18 and carry dye to enter into a color matching kettle 8-2 from a discharge port 24 to form a second feeding loop; the first dye feeding is the accurate feeding dye of the first dyeing circulation loop, and the second dye feeding is the accurate feeding of the second dyeing circulation loop.
Referring to fig. 3, the dyes are injected from the second dye injection port 25, stirring paddles 33 are arranged in the first color matching kettle 8-1 and the second color matching kettle 8-2, and the stirring shaft control module 28 controls the rotating speed so that the dyes can be uniformly mixed in the color matching kettles. The innermost side of the kettle body is provided with a second non-stick coating 32 which can prevent dye from bonding, and the middle layer of the kettle body is provided with a second temperature control interlayer 31 which can be in a hollow structure and can ensure that the temperature of the color matching kettle is fixed. Carbon dioxide enters from the air inlet 27 of the color matching kettle, and the air inlet control valve 26 of the color matching kettle connected with the air inlet can control the flow rate of carbon dioxide fluid, so that dye is dissolved in the carbon dioxide fluid and enters the first dyeing kettle 9-1 and the second dyeing kettle 9-2 through the second dye discharge port 35.
The dyeing cavity in the dyeing kettle provides a space for dyeing, a detachable dyeing bracket is arranged in the dyeing kettle for placing the cloth to be dyed, and the dyeing is finished after a dyeing cycle of 15-60 min. And closing the circulating pump 6, and cooling and depressurizing the gas in the dyeing circulating assembly, and then, entering the separation and recovery assembly 10 to separate and recover carbon dioxide or discharging the carbon dioxide into the atmosphere. The separation and recovery assembly 10 can separate and recover carbon dioxide, filter dye mixed in the carbon dioxide, and reduce production cost.
According to the embodiment of the invention, each component of the equipment is selected to have different protection levels and explosion-proof levels according to the requirements of the use site.
According to the embodiment of the invention, the outer walls of the dye bin, the color matching kettle, the dyeing kettle and the pipelines for transporting the dye are wrapped with a layer of heat insulation material, so that extreme weather such as high-temperature extremely cold isothermal changes are prevented, and the loss of the dye caused by the temperature changes is prevented.
In some embodiments, the first dyeing kettle 9-1 and the second dyeing kettle 9-2 can be independently connected, and can independently and synchronously work according to the requirements of customers, a space required by dyeing is provided in a dyeing cavity of the dyeing kettle, and a detachable dyeing bracket is arranged in the dyeing cavity for placing cloth to be dyed.
The present embodiment also provides an application of the supercritical anhydrous dyeing equipment according to any of the above examples in dyeing.
Illustratively, in a quaternary system, according to solubility model calculation, at temperature 363K and pressureThe solubility of the disperse orange 30, the disperse red 167 and the disperse blue 79 in the carbon dioxide fluid under 24.0MPa is 61.8x10 respectively -7 、19.8×10 -7 、31.4×10 -7 I.e. per liter of CO 2 0.0335g of dispersed orange 30 is dissolved per liter of CO 2 Dissolve 0.0124g disperse Red 167, per liter CO 2 Dissolve 0.0242g disperse blue 79. To obtain a certain dyeing effect, the addition amounts of disperse orange 30, disperse red 167 and disperse blue 79 are respectively 2g, 1g and 0.5g, and 59.7L, 80.6L and 20.7L of CO are respectively required 2 The dye is dissolved, and dyeing is carried out in a dyeing kettle 9-1, wherein the temperature 363K in the kettle is required, the pressure is 24.0MPa, and the dyeing cycle is carried out for 30min.
The main control system outputs the temperature 363K and the pressure of 24.0MPa to the first dyeing kettle 9-1, simultaneously opens a carbon dioxide gas supply assembly, releases carbon dioxide from the carbon dioxide steel bottle 1, connects the carbon dioxide storage tank 2, the subcooler 3, the carbon dioxide booster pump 4 and the preheater 5 through pipelines, and opens the valve 11-1 between the carbon dioxide steel bottle 1 and the carbon dioxide storage tank 2, the valve 11-2 between the carbon dioxide storage tank 2 and the subcooler 3, the valve 11-3 between the carbon dioxide booster pump 4 and the preheater 5 and the valve 13-1 between the preheater 5 and the color matching kettle 8-1, supplies carbon dioxide to the first color matching kettle 8-1 and the first dyeing kettle 9-1, and opens the circulating pump 6 when the temperature and the pressure in the first dyeing kettle 9-1 reach the set temperature 333K and the pressure of 12MPa, and the temperature and the pressure in the first dyeing kettle 9-1 are reduced, and the dyeing kettle 9-1 is continuously heated and pressurized to reach the working condition (333K, 23 MPa).
The dye bin main air inlet control valve 12-1 of the three first dye bins 7- (1-3) is opened, and the carbon dioxide flow rate is controlled to be 36m 3 And/h, opening a first dye outlet control valve provided with disperse red 167, disperse orange 30 and disperse blue 79, wherein the carbon dioxide flow of the air inlets of the dye bins is the same as that of the air inlets of the dye bins and is 12m 3 And (2) closing a dye bin air inlet control valve carrying disperse blue 79 and a first dye bin outlet valve after 2.1s, wherein the carbon dioxide flow rate of the disperse red 167 and disperse orange 30 dye bin air inlets is 18m 3 And/h, closing the air inlet control of the dye bin carrying the dispersing orange 30 after 2.6sValve and first dye outlet control valve, carbon dioxide flow of disperse red 167 dye bin air inlet is 36m 3 And (h) closing an air inlet valve and an outlet valve of a dye bin carrying disperse red 167 after 0.7s, fully mixing the three dyes in the color matching kettle 8-1, and conveying the mixed dyes into the first dyeing kettle 9-1 for dyeing for 10 min. And continuously and repeatedly executing the feeding operation twice, and carrying out dyeing circulation by three batches of accurate feeding. After dyeing is finished, the carbon dioxide is separated and recycled by the separation and recycling assembly 10 or discharged into the atmosphere by the filtering system, and the dyeing bracket is taken out after pressure relief, so that a dyeing product is obtained.
In the above embodiment, the volume of each dyeing bin is 0-20L, the temperature is 0-100 ℃, and the pressure is 0-350bar. The volume of the color matching kettle is 0-60L, the temperature is 0-200 ℃ and the pressure is 0-350bar. The volume of the dyeing kettle is 0-400L, the temperature is 0-200 ℃ and the pressure is 0-350bar. The inner diameter of the dyeing circulation loop pipeline is 40mm, the inner diameter of the feeding loop pipeline is 40mm, and the inner diameter of the carbon dioxide air supply assembly pipeline is 20mm.
The present embodiment also provides a dyeing method of the supercritical anhydrous dyeing apparatus according to any one of the above, mainly comprising the steps of:
s1: placing a dyeing bracket wound with a textile to be dyed in a dyeing kettle, heating and pressurizing the dyeing kettle to preset parameters, and starting a carbon dioxide gas supply assembly to introduce carbon dioxide; specifically, the predetermined parameters may be set according to different objects to be dyed and different dyes, and opening the carbon dioxide gas supply assembly includes opening the valves 11-1, 11-2 and 11-3.
S2: the main control system controls the feeding amount of each dye bin according to the dyeing requirement and the solubility characteristic of known dyes, the dyes are fed in batches, dissolved in carbon dioxide and conveyed to a color matching kettle, and the dyes are uniformly mixed under the stirring action of the color matching kettle;
s3: the temperature and the pressure in the dyeing circulation system reach preset dyeing process parameters, a circulation pump 6 is started to carry out dyeing circulation, the current condition is maintained, circulation dyeing is continued for 15-60min, meanwhile, the main control system monitors the dyeing condition of the dye in the dyeing kettle in real time, and the feeding amount of each dyeing bin is regulated and controlled in time until the dyeing time is reached;
S4: separating and recycling the gas in the dyeing kettle through a separation and recycling component, and taking out the dyeing bracket wound with the textile when the pressure of the dyeing circulation loop and the dyeing kettle is less than 0.5MPa, so that dyeing is completed;
in some embodiments, the dyeing further comprises the following steps after completion: and (3) putting the dyeing bracket wound with the cloth to be dyed into a dyeing kettle again, and repeating the steps S1-S4 to dye again.
It should be noted that, the dye bins mentioned in the above embodiment may be the first dye bins (7-1, 7-2, 7-3) or the second dye bins (7-4, 7-5, 7-6), and the color matching kettles mentioned in the above embodiment may be the first color matching kettles 8-1 or the second color matching kettles 8-2, and the dyeing kettles mentioned in the above embodiment may be the first dyeing kettles 9-1 or the second dyeing kettles 9-2.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described, it should be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives, and variations may be made to the above embodiments by those skilled in the art within the scope and spirit of the invention, and any such modifications, equivalents, improvements, etc. are intended to be included within the scope of the present invention.
Claims (10)
1. A supercritical anhydrous dyeing apparatus, comprising:
a carbon dioxide gas supply assembly;
a temperature and pressure regulating assembly, the carbon dioxide gas supply assembly being in communication with the temperature and pressure regulating assembly;
the first dye bin assembly comprises a plurality of first dye bins which are connected in parallel, and each first dye bin is communicated with the air outlet of the temperature and pressure adjusting assembly;
the dyeing circulation system comprises a circulation pump, a first color matching kettle and a first dyeing kettle, wherein the air inlet end of the circulation pump is communicated with the air outlet of the first dyeing kettle through a pipeline, the air outlet end of the circulation pump is communicated with the air inlet of the first color matching kettle, the dye injection inlet of the first color matching kettle is communicated with each first dye bin, the air inlet of the first color matching kettle is communicated with the air outlet of the temperature and pressure regulating assembly, and the dye discharge port of the first color matching kettle is communicated with the feed inlet of the first dyeing kettle; the carbon dioxide gas supply assembly, the temperature and pressure adjusting assembly, the first color matching kettle and the first dyeing kettle are connected in series to form a first gas supply branch, and the circulating pump, the first color matching kettle and the first dyeing kettle are connected in series to form a first dyeing circulating loop;
The automatic control component is connected with the carbon dioxide gas supply component, the temperature and pressure regulating component, the first dye bin component and the dyeing circulating system so as to control and remotely monitor the components; and
the main control system is connected with the automatic control component, monitors the dye-uptake condition of the dye in the dyeing kettle in real time, and adjusts and controls the dye bin to feed the color matching kettle through the automatic control component according to the solubility characteristic of specific dye.
2. The supercritical anhydrous dyeing apparatus according to claim 1, wherein the first dye house performs a feeding operation according to a known solubility of dye in combination with a feeding amount, according to a flow rate of carbon dioxide, and reasonably divides a feeding time to perform batch feeding.
3. The supercritical anhydrous dyeing apparatus according to claim 1 or 2, wherein the first dye bin is connected to the first color matching kettle through feed pipes, each feed pipe being uniformly distributed on a kettle cover of the first color matching kettle;
the inner side of the first dye bin is provided with a first non-stick coating, the middle layer is provided with a first temperature control interlayer, the outer side of the first dye bin is provided with a dye bin outer kettle body, and the first temperature control interlayer contains a temperature control circulation module or a temperature control heat insulation material;
The first dye bin is provided with a first dye injection opening for injecting dye, a dye bin air inlet connected with an air outlet of the temperature and pressure adjusting assembly and a first dye discharge opening connected with the first color matching kettle, a dye injection control valve is arranged on the first dye injection opening, a dye bin air inlet control valve is arranged on the dye bin air inlet, a first dye outlet control valve is arranged on the first dye discharge opening, and the automatic control assembly comprises the dye injection control valve, the dye bin air inlet control valve and the first dye outlet control valve.
4. The supercritical anhydrous dyeing apparatus according to claim 3, wherein a stirring paddle is arranged in the first color matching kettle, the stirring paddle is connected to a stirring shaft, the stirring shaft is connected with a stirring shaft control module, the stirring shaft control module controls the rotating speed, and the stirring shaft control module is arranged on the kettle body of the first color matching kettle;
the inner side of the first color matching kettle is provided with a second non-stick coating, the middle layer is provided with a second temperature control interlayer, the outer side of the first color matching kettle is provided with a color matching kettle body, and the second temperature control interlayer contains a temperature control circulation module or a temperature control heat insulation material;
The first color matching kettle is provided with a second dye injection opening connected with the first dye discharge opening, a color matching kettle air inlet connected with an air outlet of the temperature and pressure adjusting component and a second dye discharge opening connected with the first dyeing kettle, the color matching kettle air inlet is provided with a color matching kettle air inlet control valve, the second dye discharge opening is provided with a second dye outlet control valve, and the automatic control component comprises a second air inlet control valve and a second dye outlet control valve.
5. The supercritical anhydrous dyeing equipment according to claim 4, wherein a main inlet control valve of the dyeing bin is arranged between the first dyeing bin and the temperature and pressure adjusting component, a main inlet control valve of the color matching kettle is arranged between the first color matching kettle and the temperature and pressure adjusting component, a main inlet control valve of the dyeing kettle is arranged between the first color matching kettle and the first dyeing kettle, and an outlet control valve of the dyeing kettle is arranged at an outlet of the first dyeing kettle.
6. The supercritical anhydrous dyeing equipment according to claim 1 or 2, wherein the first dyeing bin, the first color matching kettle and the first dyeing kettle are internally provided with a temperature sensor, a flow sensor and a pressure sensor, and the main control system receives parameters of the temperature sensor, the flow sensor and the pressure sensor and regulates and controls the temperature and the pressure in the first dyeing bin, the first color matching kettle and the first dyeing kettle through the automatic control component according to the parameters.
7. The supercritical anhydrous dyeing apparatus according to claim 1 or 2, wherein the carbon dioxide gas supply assembly comprises a carbon dioxide steel cylinder and a carbon dioxide storage tank in communication with the carbon dioxide steel cylinder, the temperature-pressure regulating assembly comprises a subcooler, a carbon dioxide pressurizing pump and a heat exchanger connected in sequence, the subcooler is in communication with the carbon dioxide storage tank, and the heat exchanger is in communication with both the first color matching tank and the first dyeing tank;
carbon dioxide output control valves are arranged between the carbon dioxide steel cylinder and the carbon dioxide storage tank, between the carbon dioxide storage tank and the subcooler, and between the carbon dioxide pressurizing pump and the heat exchanger.
8. The supercritical anhydrous dyeing apparatus according to claim 1 or 2, further comprising a separation recovery assembly and a second dye bin assembly, the separation recovery assembly in communication with the gas outlet of the first dyeing tank;
the second dye bin assembly comprises a plurality of second dye bins which are connected in parallel, and each second dye bin is communicated with the air outlet of the temperature and pressure adjusting assembly;
the dyeing circulation system further comprises a second color matching kettle and a second dyeing kettle, wherein the air inlet end of the circulation pump is communicated with the air outlet of the second dyeing kettle through a pipeline, the air outlet end of the circulation pump is communicated with the air inlet of the second color matching kettle, the dye injection inlet of the second color matching kettle is communicated with each second dye bin, the air inlet of the second color matching kettle is communicated with the air outlet of the temperature and pressure regulating assembly, and the dye discharge port of the second color matching kettle is communicated with the feed inlet of the second dyeing kettle; the carbon dioxide gas supply assembly, the temperature and pressure adjusting assembly, the second color matching kettle and the second dyeing kettle are connected in series to form a second gas supply branch, and the circulating pump, the second color matching kettle and the second dyeing kettle are connected in series to form a second dyeing circulating loop;
The second dye bin assembly and the separation recovery assembly are connected with the automatic control assembly so as to control and remotely monitor the assemblies.
9. Use of a supercritical anhydrous dyeing apparatus according to any one of claims 1-8 in dyeing.
10. Dyeing method of a supercritical anhydrous dyeing apparatus according to any one of claims 1 to 8, characterized in that it comprises the following steps:
s1: placing a dyeing bracket wound with a textile to be dyed in a dyeing kettle, heating and pressurizing the dyeing kettle to preset parameters, and starting a carbon dioxide gas supply assembly to introduce carbon dioxide;
s2: the main control system controls the feeding amount of each dye bin according to the dyeing requirement and the solubility characteristic of known dyes, the dyes are fed in batches, dissolved in carbon dioxide and conveyed to a color matching kettle, and the dyes are uniformly mixed under the stirring action of the color matching kettle;
s3: the temperature and the pressure in the dyeing circulation system reach preset dyeing process parameters, a circulation pump is started to carry out dyeing circulation, the current condition is maintained, circulation dyeing is continued for 15-60min, meanwhile, the main control system monitors the dyeing condition of the dye in the dyeing kettle in real time, and the feeding amount of each dyeing bin is regulated and controlled in time until the dyeing time is reached;
S4: separating and recycling the gas in the dyeing kettle through a separation and recycling component, and taking out the dyeing bracket wound with the textile when the pressure of the dyeing circulation loop and the dyeing kettle is less than 0.5MPa, so that dyeing is completed;
preferably, the dyeing further comprises the following steps after completion: and (3) putting the dyeing bracket wound with the cloth to be dyed into a dyeing kettle again, and repeating the steps S1-S4 to dye again.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1693580A (en) * | 2005-05-26 | 2005-11-09 | 南通市华安超临界萃取有限公司 | Super critical CO2 fluid dyeing technology |
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| CN213132795U (en) * | 2020-07-06 | 2021-05-07 | 江门市裕和泰纺织实业有限公司 | Printing and dyeing dye proportioning and mixing device |
| KR102325287B1 (en) * | 2020-06-12 | 2021-11-11 | (주)대주기계 | Monitoring apparatus for supercritical co2 dye process and normality dyeing judgment method using the apparatus |
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| CN1693580A (en) * | 2005-05-26 | 2005-11-09 | 南通市华安超临界萃取有限公司 | Super critical CO2 fluid dyeing technology |
| CN103806234A (en) * | 2014-02-25 | 2014-05-21 | 中国科学院福建物质结构研究所 | Supercritical CO2 anhydrous rotating warp beam horizontal type dyeing kettle and dyeing system thereof |
| CN105297320A (en) * | 2015-11-16 | 2016-02-03 | 梁鼎天 | Supercritical CO2 waterless dyeing system and cloth dyeing method thereof |
| CN106835560A (en) * | 2016-11-21 | 2017-06-13 | 大连工业大学 | A kind of industrialization supercritical CO of polynary dyeing and finishing kettle and more than 1000L scales2Liquid waterless equipment for dyeing and finishing |
| CN108086022A (en) * | 2017-12-26 | 2018-05-29 | 中原工学院 | Supercritical CO used for textiles2Fluid dyestuff composition and coloring system and method |
| KR102325287B1 (en) * | 2020-06-12 | 2021-11-11 | (주)대주기계 | Monitoring apparatus for supercritical co2 dye process and normality dyeing judgment method using the apparatus |
| CN213132795U (en) * | 2020-07-06 | 2021-05-07 | 江门市裕和泰纺织实业有限公司 | Printing and dyeing dye proportioning and mixing device |
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