CN210766137U - Supercritical carbon dioxide printing and dyeing system - Google Patents
Supercritical carbon dioxide printing and dyeing system Download PDFInfo
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- CN210766137U CN210766137U CN201921698966.1U CN201921698966U CN210766137U CN 210766137 U CN210766137 U CN 210766137U CN 201921698966 U CN201921698966 U CN 201921698966U CN 210766137 U CN210766137 U CN 210766137U
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Abstract
The utility model discloses a supercritical carbon dioxide printing and dyeing system, include: CO 22A storage tank, a dye tank, a dyeing kettle, a dye collecting tank, a decompression cooling unit, an extraction separation unit, and CO2The storage tank is connected with the dye tank through a filtering unit, a drying unit, a heating unit and a pressurizing unit sequentially through pipelines; the dyeing tank is connected with the dyeing kettle through the auxiliary agent tank and the flowmeter in sequence through a pipeline, and the dyeing kettle is provided with at least one dual-core ultrasonic generating device and at least one bidirectional circulating pump; the bottom of the dyeing kettle is connected with a decompression cooling unit through a dye collecting tank by a pipeline; the top end of the decompression cooling unit is connected with CO through a purification unit, a filtering unit and a drying unit in sequence by pipelines2A storage tank. The supercritical carbon dioxide printing and dyeing system does not generate dyeing wastewater and other wastes, can realize the characteristics of environmental protection, clean production, good economic benefit and remarkable environmental benefit, and can realize the purposes of cyclic utilization and flow production, yield improvement and industrial cost reduction.
Description
Technical Field
The utility model relates to a printing and dyeing technical field especially relates to a supercritical carbon dioxide printing and dyeing system.
Background
The existing supercritical carbon dioxide printing and dyeing process only realizes semi-continuity, and a dyeing kettle does not have heat preservation and insulation measures, so that a large amount of heat is lost in the process flow; only a one-way circulating pump is arranged in the dyeing process, so that the dyeing uniformity of the product has certain problems; the existing dyeing auxiliary agent does not achieve the best dyeing assisting effect; the existing supercritical carbon dioxide printing and dyeing process is not effectively combined with the action of ultrasound; the residual dye liquor is not recycled, which can realize continuous and cyclic production, and the factors cause that the prior supercritical carbon dioxide printing and dyeing process is in the states of low efficiency, large energy consumption, high cost and low benefit, and the problems of substandard product uniformity and long equipment exist.
Therefore, it is necessary to develop a process which can realize green environmental protection, clean production, recycling, high yield and low cost.
SUMMERY OF THE UTILITY MODEL
The utility model provides a solve the above-mentioned problem among the prior art, provide a supercritical carbon dioxide printing and dyeing system.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a supercritical carbon dioxide printing and dyeing system, include: CO 22Holding vessel, dye jar, dyeing cauldron, dyestuff collection tank, decompression cooling unit and extraction separating unit, wherein:
the CO is2The storage tank is connected with the dye tank sequentially through a pipeline filtering unit, a drying unit, a heating unit and a pressurizing unit so as to enable the CO to be in contact with the dye tank2The carbon dioxide in the storage tank is converted into supercritical carbon dioxide after pressurization and heating treatment, and the supercritical carbon dioxide is introduced into the dye tank and mixed with the dye to form dye liquor；
The dyeing tank is connected with the dyeing kettle through an auxiliary agent tank and a flowmeter in sequence through a pipeline and is used for feeding the dye liquor into the dyeing kettle to dye spindles from a spindle feeding end, and the dyeing kettle is provided with at least one dual-core ultrasonic generating device and at least one bidirectional circulating pump;
the bottom of the dyeing kettle is connected with the decompression cooling unit through the dye collecting tank through a pipeline so as to collect the residual dye liquor dyed in the dyeing kettle in the dye collecting tank, and the decompression and separation treatment is carried out on the residual dye liquor through the decompression cooling unit;
the top end of the decompression cooling unit is connected with the CO sequentially through a purification unit, a filtering unit and a drying unit through pipelines2A storage tank for feeding the separated carbon dioxide gas to the CO2The storage tank is recycled; and
the bottom end of the decompression cooling unit is connected with the extraction separation unit through a pipeline so as to extract the separated dye liquor, the extracted dye is sent into the dye tank for recycling, and/or the extracted auxiliary agent is sent into the auxiliary agent tank for recycling.
Furthermore, on the supercritical carbon dioxide printing and dyeing system, the dyeing kettle is composed of a pipeline of 24-25 meters, and a heat insulation layer is arranged on the dyeing kettle.
Furthermore, four ultrasonic wave generating units and four bidirectional circulating pumps are arranged on the dyeing kettle on the supercritical carbon dioxide printing and dyeing system.
Furthermore, liquid inlet holes are respectively formed in the supercritical carbon dioxide printing and dyeing system at positions 1000mm, 3000mm, 5000mm and 6000mm away from the spindle outlet end of the dyeing kettle, and the liquid inlet holes are connected with the dyeing tank through pipelines.
Furthermore, liquid discharge holes are respectively formed in the supercritical carbon dioxide printing and dyeing system at positions 375mm, 625mm, 875mm and 1125mm away from the spindle outlet end of the dyeing kettle, and the liquid discharge holes are connected with the dye collecting tank through pipelines.
Further preferably, in the supercritical carbon dioxide printing and dyeing system, the liquid discharge hole and the liquid inlet hole are in a large-small head structure and both of the large-small head structure and the large-small head structure are composed of an upper hole and a lower hole.
Further preferably, on the supercritical carbon dioxide printing and dyeing system, the height of the upper hole is 20-30mm, and the diameter is 25-30 mm; the height of the lower hole is 8-12mm, and the diameter is 3-8 mm.
Further, on the supercritical carbon dioxide printing and dyeing system, the extraction separation unit is respectively connected with the CO through a purification unit and a drying unit by pipelines2A storage tank and an auxiliary agent tank for recovering the dye and the auxiliary agent.
Further, on the supercritical carbon dioxide printing and dyeing system, the extraction and separation unit is connected with an extractant tank through a purification unit and a drying unit by pipelines, and the extractant tank is connected with the extraction and separation unit.
Further, on the supercritical carbon dioxide printing and dyeing system, a product collecting unit is arranged at the spindle outlet end of the dyeing kettle.
The above technical scheme is adopted in the utility model, compared with the prior art, following technological effect has:
(1) 4 bidirectional circulating pumps are configured to complete a group of forward and reverse circulation in 4-5 minutes, so that the dyeing uniformity of the product is improved; meanwhile, 4 same-frequency ultrasonic waves are additionally arranged, so that the activity of dye molecules and dyeing assistant molecules is improved, the diffusion and adsorption processes of the dye molecules are accelerated, and the dyeing efficiency is improved;
(2) by adding the auxiliary agent into the dissolved dye solution, the dyeing process can be faster, and the spindle has stronger adsorption to the dye; one spindle can be successfully dyed within 30min, and the spindle enters the product collecting trolley from the spindle outlet end at the time interval of about 18 seconds;
(3) adding a residual dye solution collector at the spindle outlet end, respectively opening holes at positions 375mm, 625mm, 875mm and 1125mm away from the spindle outlet end to be connected with the residual dye solution collector to collect residual dye solution, separating supercritical carbon dioxide from dye and auxiliaries by a decompression separation device, separating the dye from the auxiliaries by an extraction mode, respectively purifying and drying the supercritical carbon dioxide, the dye and the auxiliaries, and circulating the purified and dried dye and auxiliaries to a raw material bin; the process for printing and dyeing by using the supercritical carbon dioxide can realize green, environment-friendly, clean production, recycling, high yield and low cost;
(4) the pressure born by the supercritical carbon dioxide printing and dyeing system of the utility model is reduced by 30 percent to 46 percent, compared with the printing and dyeing temperature of the common equipment, the pressure born by the supercritical carbon dioxide printing and dyeing system is reduced by 25 percent to 33 percent, and the equipment cost and the heat supply cost are greatly reduced; compared with the printing and dyeing efficiency of the existing process equipment, the printing and dyeing efficiency is improved by 16-33%; in addition, due to the configuration of the dual-core ultrasonic wave, dyeing is more uniform, the color difference of inner and outer coils is greatly reduced, and the color fastness of the fabric is improved to be up to 5 levels.
Drawings
Fig. 1 is a schematic structural diagram of a supercritical carbon dioxide printing and dyeing system of the present invention;
FIG. 2 is a schematic structural diagram of a dyeing kettle in the supercritical carbon dioxide printing and dyeing system of the present invention;
FIG. 3 is a schematic view of a partially enlarged structure of the dyeing kettle shown in FIG. 2;
FIG. 4 is a schematic structural view of an ingot outlet end of a dyeing kettle in the supercritical carbon dioxide printing and dyeing system of the present invention;
FIG. 5 is a schematic view of a partially enlarged structure of a drain hole at the spindle outlet end of the dyeing kettle shown in FIG. 4.
Detailed Description
The present invention will be described in detail and specifically with reference to specific embodiments so as to provide a better understanding of the present invention, but the following embodiments do not limit the scope of the present invention.
Example 1
Referring to fig. 1, a supercritical carbon dioxide printing system according to the process is provided, which comprises: CO 22Holding vessel, dye jar, dyeing cauldron, dyestuff collection tank, decompression cooling unit and extraction separating unit, wherein:
the CO is2The storage tanks are communicated in sequenceThe filter unit, the drying unit, the heating unit and the pressurizing unit are connected with the dye tank through pipelines to connect the CO with the dye tank2The carbon dioxide in the storage tank is converted into supercritical carbon dioxide after pressurization and heating treatment, and the supercritical carbon dioxide is introduced into the dye tank and mixed with the dye to form dye liquor;
the dyeing tank is connected with the dyeing kettle through an auxiliary agent tank and a flowmeter in sequence through a pipeline and is used for feeding the dye liquor into the dyeing kettle to dye spindles from a spindle feeding end, and the dyeing kettle is provided with at least one dual-core ultrasonic generating device and at least one bidirectional circulating pump;
the bottom of the dyeing kettle is connected with the decompression cooling unit through the dye collecting tank through a pipeline so as to collect the residual dye liquor dyed in the dyeing kettle in the dye collecting tank, and the decompression and separation treatment is carried out on the residual dye liquor through the decompression cooling unit;
the top end of the decompression cooling unit is connected with the CO sequentially through a purification unit, a filtering unit and a drying unit through pipelines2A storage tank for feeding the separated carbon dioxide gas to the CO2The storage tank is recycled; and
the bottom end of the decompression cooling unit is connected with the extraction separation unit through a pipeline so as to extract the separated dye liquor, the extracted dye is sent into the dye tank for recycling, and/or the extracted auxiliary agent is sent into the auxiliary agent tank for recycling.
In this embodiment, the supercritical carbon dioxide can be separated from the dye and the auxiliary agent by the decompression cooling unit. And the extraction separation unit can separate the dye and the auxiliary agent. Purifying, filtering and drying the supercritical carbon dioxide which is singly separated by decompression and cooling, and then introducing the supercritical carbon dioxide into CO2The storage tank is ready for use. And the separated dye enters a dye tank for standby after being purified and dried. And purifying and drying the separated auxiliary agent, and then feeding the auxiliary agent into an auxiliary agent tank for later use. In addition, a product collecting unit is arranged behind the dyeing kettle to collect the dyed spindle, the product collecting unit is a material conveying trolley,preferably, 3 material conveying trolleys are adopted, wherein two trolleys are always in operation, and the other trolley is in a standby operation state.
In this embodiment, as shown in fig. 1, the dyeing kettle is composed of a pipeline of 24-25 m, and a heat insulating layer, four dual-core ultrasonic generators and four bidirectional circulating pumps are installed on the dyeing kettle.
In this embodiment, as shown in FIGS. 2 to 3, liquid discharge holes were formed at positions 375mm, 625mm, 875mm and 1125mm from the outlet end of the dyeing vessel, respectively, and the liquid discharge holes were connected to the dye collecting tank through pipes. As shown in fig. 4-5, liquid inlet holes are respectively arranged at positions 1000mm, 3000mm, 5000mm and 6000mm away from the ingot outlet end of the dyeing kettle, and the liquid inlet holes are connected with the dyeing tank through pipelines. The liquid discharge hole and the liquid inlet hole are of a large-small head structure and are both composed of an upper hole and a lower hole, the height of the upper hole is 20-30mm, and the diameter of the upper hole is 25-30 mm; the height of the lower hole is 8-12mm, and the diameter is 3-8 mm.
In this embodiment, as shown in fig. 1, the extraction separation unit is connected to the CO through a purification unit and a drying unit via pipelines respectively2A storage tank and an auxiliary agent tank for recovering the dye and the auxiliary agent. The extraction separation unit is connected with an extractant tank through a purification unit and a drying unit by pipelines, and the extractant tank is connected with the extraction separation unit. The adopted dyeing assistant is suitable for supercritical carbon dioxide printing, and the dyeing assistant in the residual dye solution can be separated from supercritical dioxide and dye, so that the recycling is realized.
The supercritical carbon dioxide printing and dyeing system has the working principle that: separating liquid carbon dioxide from CO2The storage tank sequentially passes through the heating unit, the pressurizing unit, the dyeing tank, the auxiliary agent tank and the feeding pump and then enters the dyeing kettle, incoming materials from the ingot feeding end are dyed under the combined action of ultrasonic waves, bidirectional circulation and auxiliary agents, and a heat insulation layer is sleeved on the periphery of the dyeing kettle; after the spindle is dyed and matured, the spindle leaves from the spindle outlet end and enters a product collecting trolley to be carried to the next procedure; collecting residual dye with a dye collector, separating supercritical carbon dioxide from dye and auxiliary agent with a decompression cooling unit, and collecting with an extraction separation unitSeparating the dye and the auxiliary agent by an extraction mode; then the supercritical carbon dioxide, the dye and the auxiliary agent are respectively purified and dried, and then are circulated to a raw material bin. The printing and dyeing process has no dyeing wastewater and other wastes, can realize the characteristics of environmental protection, clean production, good economic benefit and remarkable environmental benefit, and can realize the purposes of cyclic utilization, flow production, yield improvement and industrial cost reduction.
Application example 1
Based on the printing and dyeing process and the printing and dyeing system described in embodiment 1, the present embodiment provides a synthetic fiber (polyester fabric) that is dyed under the condition of the process equipment. As shown in figure 1, the process comprises six parts to form a complete automatic process flow, which comprises a carbon dioxide storage bin part, a pressurizing part, a heating part, a dye part, a double-circulation ultrasonic printing and dyeing part and a separation and recovery part.
During the dyeing process, liquid carbon dioxide is separated from CO2The storage tank sequentially passes through the pressurizing unit, the heating unit, the dyeing tank, the auxiliary agent tank, the feeding pump and the dyeing kettle, and the supplied materials which are subjected to preheating treatment and drying treatment from the ingot feeding end are dyed under the combined action of KC-TC01 dual-core ultrasonic waves and the bidirectional circulating pump. Wherein, the pressurizing unit adopts a booster pump, and the pressure of the carbon dioxide needs to be increased to more than 16 MPa; the heating unit adopts a heater to heat the carbon dioxide to be more than 100 ℃; dissolving dye in supercritical carbon dioxide through a dye tank to form dye liquor; the auxiliary agent tank does not need to be added with any auxiliary agent, and the dye liquor directly passes through the auxiliary agent tank; KC-TC01 dual-core ultrasonic working power is 600W, the dye liquor is circulated in the dyeing kettle at a speed of 2.4m/min by the bidirectional circulating pump, the uniformity of the dye is improved, and the spindle moves forward in the dyeing kettle at a range of 1.2m/min and is dyed. After the spindle is dyed to be mature, the spindle leaves from the spindle outlet end, enters a product collecting trolley to be carried to the next process, a dye collector collects residual dye, supercritical carbon dioxide and dye are separated through a decompression separation device, the dye is separated through an extraction mode, and the supercritical carbon dioxide and the dye are respectively purified and dried and then circulated to a raw material bin.
Application example 2
Based on the printing and dyeing process and the printing and dyeing system described in the above embodiment 1, this embodiment provides a method for dyeing natural fibers (cotton, hemp, wool) by using the apparatus and customized process conditions. As shown in FIG. 1, the process consists of seven major parts into a complete automated flow process, including CO2The device comprises a storage tank part, a pressurizing part, a heating part, a dye part, an auxiliary agent part, a double-circulation ultrasonic printing and dyeing part and a separation and recovery part.
During the printing and dyeing process, liquid carbon dioxide is separated from CO2The storage tank flows out, sequentially passes through the pressurizing unit, the heating unit, the dye tank, the auxiliary agent tank and the feeding pump, enters the dyeing kettle, the incoming materials which are preheated from the ingot inlet end, swollen by absolute ethyl alcohol and dried are dyed under the combined action of KC-TC01 dual-core ultrasonic waves and a bidirectional circulating pump, and the periphery of the dyeing kettle is sleeved with a heat-insulating layer. Wherein, the pressurizing unit is required to pressurize the carbon dioxide to more than 16 MPa; the heating unit is required to heat the carbon dioxide to the temperature of more than 80 ℃; dissolving dye in supercritical carbon dioxide through a dye tank to form dye liquor; the auxiliary agent tank needs to be added with absolute ethyl alcohol as an auxiliary dyeing agent, so that the reactive dye is more fully dissolved in the supercritical carbon dioxide, and the dye solution is more uniform; the KC-TC01 dual-core ultrasonic working power is 600W, the dye liquor is circulated in the dyeing kettle at the speed of 3m/min by the bidirectional circulating pump, the uniformity of the dye is improved, and the spindle moves forward in the dyeing kettle at the amplitude of 1.2m/min and is dyed. After the spindle is dyed to be mature, the spindle leaves from the spindle outlet end, enters a product collecting trolley to be carried to the next process, a dye collector collects residual dye, supercritical carbon dioxide, the dye and the auxiliary agent are separated through a decompression separation device, the dye and the auxiliary agent are separated in an extraction mode, and the supercritical carbon dioxide, the dye and the auxiliary agent are respectively purified and dried and then circulated to a raw material bin.
By adopting the application example 1 and the application example 2 of the supercritical carbon dioxide printing and dyeing process and the supercritical carbon dioxide printing and dyeing system, a spindle can be successfully dyed in 30min, the spindle comes out from the spindle outlet end at a time interval of about 18 seconds, and the length of equipment can be controlled within 30 m; compared with the prior art, the efficiency is improved by about 16% at least, the equipment is reduced by about 25%, and the cost is reduced by about 10% at least; the process for printing and dyeing the synthetic fibers and the natural fibers by using the supercritical carbon dioxide can realize the processes of green, environmental protection, clean production, cyclic utilization, high yield and low cost, improves the uniformity of dyeing of fabrics on the inner side and the outer side of a spindle, and simultaneously improves the color fastness of the fabrics to be up to 5 grades.
The above detailed description of the embodiments of the present invention is only for exemplary purposes, and the present invention is not limited to the above described embodiments. Any equivalent modifications and substitutions to those skilled in the art are also within the scope of the present invention. Accordingly, variations and modifications in equivalents may be made without departing from the spirit and scope of the invention, which is intended to be covered by the following claims.
Claims (10)
1. A supercritical carbon dioxide printing system, comprising: CO 22Holding vessel, dye jar, dyeing cauldron, dyestuff collection tank, decompression cooling unit and extraction separating unit, wherein:
the CO is2The storage tank is connected with the dye tank sequentially through a pipeline filtering unit, a drying unit, a heating unit and a pressurizing unit so as to enable the CO to be in contact with the dye tank2The carbon dioxide in the storage tank is converted into supercritical carbon dioxide after pressurization and heating treatment, and the supercritical carbon dioxide is introduced into the dye tank and mixed with the dye to form dye liquor;
the dyeing tank is connected with the dyeing kettle through an auxiliary agent tank and a flowmeter in sequence through a pipeline and is used for feeding the dye liquor into the dyeing kettle to dye spindles from a spindle feeding end, and the dyeing kettle is provided with at least one dual-core ultrasonic generating device and at least one bidirectional circulating pump;
the bottom of the dyeing kettle is connected with the decompression cooling unit through the dye collecting tank through a pipeline so as to collect the residual dye liquor dyed in the dyeing kettle in the dye collecting tank, and the decompression and separation treatment is carried out on the residual dye liquor through the decompression cooling unit;
the top end of the decompression cooling unit is connected with the CO sequentially through a purification unit, a filtering unit and a drying unit through pipelines2A storage tank for feeding the separated carbon dioxide gas to the CO2The storage tank is recycled; and
the bottom end of the decompression cooling unit is connected with the extraction separation unit through a pipeline so as to extract the separated dye liquor, the extracted dye is sent into the dye tank for recycling, and/or the extracted auxiliary agent is sent into the auxiliary agent tank for recycling.
2. The supercritical carbon dioxide dyeing and printing system according to claim 1, wherein the dyeing vessel is composed of a 24-25 m pipe, and a heat insulating layer is provided thereon.
3. The supercritical carbon dioxide printing system according to claim 1 wherein four ultrasonic wave generating units and four bidirectional circulation pumps are provided on the dyeing kettle.
4. The supercritical carbon dioxide dyeing system according to claim 1, wherein liquid inlet holes are respectively formed at positions 1000mm, 3000mm, 5000mm and 6000mm away from the spindle outlet end of the dyeing kettle, and the liquid inlet holes are connected with the dyeing tank through a pipeline.
5. The supercritical carbon dioxide printing and dyeing system according to claim 1, wherein liquid discharge holes are respectively arranged at 375mm, 625mm, 875mm and 1125mm from the spindle outlet end of the dyeing kettle, and the liquid discharge holes are connected with the dye collecting tank through pipelines.
6. The supercritical carbon dioxide dyeing system according to claim 5, wherein the liquid discharge hole and the liquid inlet hole are in a big-end-down structure, and both are composed of an upper hole and a lower hole.
7. The supercritical carbon dioxide printing system according to claim 6, wherein the upper orifice has a height of 20-30mm and a diameter of 25-30 mm; the height of the lower hole is 8-12mm, and the diameter is 3-8 mm.
8. The supercritical carbon dioxide printing system according to claim 1, where the extraction separation unit is connected to the CO via a pipeline through a purification unit and a drying unit, respectively2A storage tank and an auxiliary agent tank for recovering the dye and the auxiliary agent.
9. The supercritical carbon dioxide printing system according to claim 1, where the extraction separation unit is connected to an extractant tank via a pipeline through a purification unit and a drying unit, and the extractant tank is connected to the extraction separation unit.
10. The supercritical carbon dioxide printing system according to claim 1, wherein the outlet end of the dyeing vessel is provided with a product collection unit.
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| CN201921698966.1U CN210766137U (en) | 2019-10-11 | 2019-10-11 | Supercritical carbon dioxide printing and dyeing system |
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| CN201921698966.1U CN210766137U (en) | 2019-10-11 | 2019-10-11 | Supercritical carbon dioxide printing and dyeing system |
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