CN110541202A - tunnel type supercritical (subcritical) CO2 anhydrous wool washing method - Google Patents
tunnel type supercritical (subcritical) CO2 anhydrous wool washing method Download PDFInfo
- Publication number
- CN110541202A CN110541202A CN201910867394.3A CN201910867394A CN110541202A CN 110541202 A CN110541202 A CN 110541202A CN 201910867394 A CN201910867394 A CN 201910867394A CN 110541202 A CN110541202 A CN 110541202A
- Authority
- CN
- China
- Prior art keywords
- wool
- valve
- washing vehicle
- wool washing
- supercritical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01B—MECHANICAL TREATMENT OF NATURAL FIBROUS OR FILAMENTARY MATERIAL TO OBTAIN FIBRES OF FILAMENTS, e.g. FOR SPINNING
- D01B3/00—Mechanical removal of impurities from animal fibres
- D01B3/04—Machines or apparatus for washing or scouring loose wool fibres
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Extraction Or Liquid Replacement (AREA)
- Detergent Compositions (AREA)
Abstract
The invention relates to a tunnel type supercritical (subcritical) CO2 anhydrous wool washing method, belonging to the field of wool (down) fiber wool washing. The method comprises the following steps: putting the preliminarily opened wool (down) fibers into a wool washing vehicle, enabling the wool washing vehicle to enter a wetting passage, sealing the wool washing vehicle, a fluid passage I and an impurity collector, pressurizing liquid CO2 to 1-5MPa, heating to room temperature to 40 ℃, mixing water with supercritical (subcritical) CO2 in an amount which is 0.1-2% of the volume of liquid CO2, injecting into the wool washing vehicle, and wetting; after wetting, the wool washing vehicle enters a cleaning passage, the wool washing vehicle is sealed with a fluid passage II and a grease settler, liquid CO2 is pressurized to 5-7MPa and heated to room temperature-55 ℃, the mixture of lipase and alkylamine polyoxyethylene ether is mixed according to 0.5-4% of the weight of wool (wool) fiber, and the weight ratio of the lipase to the alkylamine polyoxyethylene ether is 1: and 2-4, injecting the mixture into a wool washing vehicle, and cleaning.
Description
Technical Field
The invention relates to a tunnel type supercritical (subcritical) CO2 anhydrous wool washing method, belonging to the field of wool (down) fiber wool washing.
Background
the purpose of wool scouring is to remove dirt, sweat, dirt, grease, etc. from wool and to obtain scoured wool without entanglement or felting. The clean wool is the basis of wool spinning products, and the quality of the clean wool has obvious influence on the subsequent processing. During the growth of sheep, on one hand, the wool is rich in mineral and plant impurities, such as sandy soil, various grasses, feed and the like, due to the influence of the feeding environment. On the other hand, sweat, fat, dander, excrement and the like excreted by the sheep in the growing process are attached to the wool. The content of residual pollutants on the surface of the cleaned wool influences the whiteness, dyeing property and drafting spinning performance of the cleaned wool; the loose degree and damage degree of the clean wool affect the carding, spinning and weaving performances of the clean wool. Therefore, the position and the role of the wool washing technology in wool spinning production are very important.
The traditional wool washing method is mainly divided into two methods of aqueous medium wool washing and solvent wool washing according to the difference of wool washing media. The wool washing with the aqueous medium is realized by emulsifying lanolin and separating the lanolin from fibers under the action of a surfactant and an inorganic salt, so that the purpose of removing the grease is achieved, the wool washing is usually completed at a higher temperature under a stronger mechanical action, generally, 15-40 t of water is consumed for 1t of wool, the COD value of the wool washing wastewater is as high as 4 x 104-6 x 104mg/L due to the organic pollutants such as the lanolin and the sheep sweat, and the recovery of the lanolin is difficult. Although the solvent method can effectively recover lanolin, the equipment is complex, the investment cost is high, and the solvent method is adopted by only a few foreign enterprises and has less application.
with the increasing environmental problem, the exploration of environment-friendly cleaning wool washing methods has become a current research trend. The processing of dyeing, modifying and the like of fiber materials by using CO2 fluid as a cleaning medium has been developed in stages at home and abroad. Compared with the aqueous medium dyeing process, the CO2 is non-toxic, is not easy to burn, has low price, zero emission and no pollution, has the characteristics of high solubility and diffusivity, and shows better application prospect in the aspect of cleaning wool (down) fibers.
disclosure of Invention
the invention provides a tunnel type supercritical (subcritical) CO2 anhydrous wool washing method aiming at the problems of high water consumption and energy consumption and difficult extraction of organic pollutants such as grease and the like in the wool (down) fiber wool washing process, thereby solving the problems of high water consumption and high pollution in the existing aqueous medium wool washing process, realizing the efficient recovery of grease and meeting the clean production requirement of the wool washing process.
the invention provides a tunnel-type supercritical (subcritical) CO2 waterless wool washing method, which comprises the following steps: putting the preliminarily opened wool (down) fibers into a wool washing vehicle, enabling the wool washing vehicle to enter a wetting passage along a guide rail, sealing the top of the wool washing vehicle with a fluid passage I, sealing the bottom of the wool washing vehicle with an impurity collector, pressurizing liquid CO2 to 1-15MPa, heating to room temperature-40 ℃, mixing water with supercritical (sub) critical CO2 according to 0.1-2% of the volume of liquid CO2, and injecting the mixture into the wool washing vehicle for wetting; after wetting, the wool washing vehicle enters a cleaning passage along a guide rail, the top of the wool washing vehicle is sealed with a fluid passage II, the bottom of the wool washing vehicle is sealed with a grease settler, liquid CO2 is pressurized to 5-15MPa, the temperature is heated to room temperature to 55 ℃, the mixture of lipase and alkylamine polyoxyethylene ether is mixed according to 0.5-4% of the weight of wool (wool) fibers, and the weight ratio of the lipase to the alkylamine polyoxyethylene ether is 1: and 2-4, injecting the mixture into a wool washing vehicle, and cleaning.
in the invention, preferably, after wetting, the supercritical (subcritical) CO2 is decompressed to 0MPa in a separation kettle, is separated from dissolved sweat and grease, is cooled to below 0 ℃ in a condenser, and is recovered with liquid CO 2.
The invention preferably removes impurities from the impurity collector after wetting.
The invention preferably reduces the pressure of the cleaned supercritical (subcritical) CO2 to 2-3MPa in a separation kettle, heats the supercritical (subcritical) CO2 to 50-60 ℃, separates the supercritical (subcritical) CO2 from grease, reduces the temperature in a condenser to below 0 ℃, and recovers liquid CO 2.
The invention preferably cleans the grease in the grease settler after cleaning.
The wool (wool) fiber is preferably wool, cashmere, yak hair, yak wool, alpaca hair or mohair.
the invention has the beneficial effects that:
The tunnel type supercritical (subcritical) CO2 anhydrous wool washing method can realize continuous wool washing production of wool (down) fibers;
the invention adopts supercritical (subcritical) CO2 to replace an aqueous medium, has the advantages of cleanness and environmental protection, and simultaneously, the product meets the standard requirements of FZ/T21002-2009 "domestic fine wool and its improved wool scouring wool".
Drawings
in the figure 3 of the attached drawings of the invention,
FIG. 1 is a schematic structural diagram of a tunnel-type supercritical (sub-) critical CO2 anhydrous wool washing device described in example 1;
FIG. 2 is a schematic structural view of the tunnel-type wool washing bin according to embodiment 1;
FIG. 3 is a schematic structural view of the wool washing vehicle of embodiment 1;
The device comprises a CO2 liquid storage tank 1, a CO2 liquid storage tank 2, valves I and 3, valves II and 4, a condenser 5, valves III and 6, valves IV and 7, a CO2 pressurizing pump 8, a heat exchanger 9, a solvent storage tank 10, valves V and 11, a metering pump 12, valves VI and 13, a tunnel type wool washing bin 1301, a wool washing vehicle 1302, wool washing vehicle positioners I and 1303, a guide rail 1304, a fluid passage I and 1305, a wetting passage 1306, an impurity collector 1307, a fluid passage II and 1308, a cleaning passage 1309, a grease settler 13010, a wool washing vehicle positioners II and 14, a valve VII and 15, a valve VIII and 16, a valve IX and 17, a CO2 circulating pump 18, a valve X and 19, a valve XI and 20, a separation kettle I and 21, a valve XII and 22, a separation kettle II and 23 and an adsorber.
Detailed Description
the following non-limiting examples are presented to enable those of ordinary skill in the art to more fully understand the present invention and are not intended to limit the invention in any way.
example 1
A tunnel type supercritical (subcritical) CO2 anhydrous wool washing device comprises a CO2 liquid storage tank 1, a condenser 4, a CO2 pressure pump 7, a heat exchanger 8, a solvent storage tank 9, a metering pump 11, a tunnel type wool washing bin 13, a CO2 circulating pump 17, a separation kettle I20, a separation kettle II 22 and an adsorber 23;
The tunnel type wool washing bin 13 comprises a wool washing vehicle 1301, a wool washing vehicle positioner I1302, a guide rail 1303, a fluid passage I1304, a wetting passage 1305, an impurity collector 1306, a fluid passage II 1307, a cleaning passage 1308, a grease settler 1309 and a wool washing vehicle positioner II 13010;
the fluid passage I1304 is provided with a porous lower cover plate I with the aperture of 0.5 mm;
the fluid channel I1304, the wetting channel 1305 and the impurity collector 1306 form a wetting pool;
The fluid passage II 1307 is provided with a porous lower cover plate II with the aperture of 0.5 mm;
the fluid passage II 1307, the cleaning passage 1308 and the grease settler 1309 form a cleaning pool;
the guide rail 1303 passes through a wool washing vehicle positioner I1302, a wetting tank, a cleaning tank and a wool washing vehicle positioner II 13010 in sequence;
the bottom of the wool washing vehicle 1301 is provided with a porous lower cover plate III with the aperture of 5 mm;
the carwash 1301 can slide on the guide rails 1303 through a rope traction mechanism;
an outlet I of the CO2 liquid storage tank 1 is connected with an inlet I of a heat exchanger 8 sequentially through a valve I2, a valve II 3, a condenser 4, a valve III 5, a valve IV 6 and a CO2 booster pump 7;
the solvent storage tank 9 is connected with an inlet I of the heat exchanger 8 sequentially through a valve V10 and a metering pump 11;
An outlet I of the heat exchanger 8 is connected with a fluid passage I1304 through a valve VI 12;
an outlet II of the heat exchanger 8 is connected with a fluid passage II 1307 through a valve VII 14;
the impurity collector 1306 is connected with a grease settler 1309 sequentially through a valve VIII 15 and a valve IX 16;
The inlet of the CO2 circulating pump 17 is connected between valve VIII 15 and valve IX 16;
The outlet of the CO2 circulating pump 17 is connected with the inlet II of the heat exchanger 8;
The inlet of the valve X18 is connected between the valve VIII 15 and the valve IX 16;
the outlet of the valve X18 is connected between a valve I2 and a valve II 3 through a valve XI 19, a separation kettle I20, a valve XII 21, a separation kettle II 22 and an adsorber 23 in sequence;
The inlet II of the CO2 liquid storage tank 1 is connected between the valve III 5 and the valve IV 6.
example 2
a supercritical (sub) critical CO2 waterless wool scouring process using the apparatus of example 1, the supercritical (sub) critical CO2 waterless wool scouring process comprising the steps of:
adding 100kg of primarily opened wool into a wool washing vehicle 1301 positioned in a wool washing vehicle positioner I1302, enabling the wool washing vehicle 1301 to enter a wetting passage 1305 at the speed of 1m/min along a guide rail 1303, starting an electromagnet to enable the top of the wool washing vehicle 1301 to be magnetically sealed with a fluid passage I1304, magnetically sealing the bottom of the wool washing vehicle 1301 with an impurity collector 1306, firstly starting a valve I2, a valve II 3, a valve III 5, a valve IV 6, a valve V10, a valve VI 12 and a valve VIII 15, closing the rest valves, pressurizing liquid CO2 to 15MPa through a CO2 pressurizing pump 7, heating to 40 ℃ through a heat exchanger 8, mixing water with supercritical CO2 according to 0.4% of the volume of the liquid CO2 through a metering pump 11, then injecting into the wool washing vehicle 1301, starting the valve VI 12, the valve VIII 15 and a CO2 circulating pump 17, closing the rest valves, and wetting for 5min under the action of the CO2 circulating pump 17;
after wetting, opening a valve VIII 15, a valve X18, a valve XI 19, a valve XII 21, a valve II 3 and a valve III 5, closing the rest valves, reducing the pressure of supercritical (subcritical) CO2 to 0MPa in a separation kettle I20 and a separation kettle II 22, separating the supercritical (subcritical) CO2 from dissolved sheep sweat and wool fat, cooling the supercritical (subcritical) CO2 to below 0 ℃ in a condenser 4, and recovering liquid CO2 to a CO2 liquid storage tank 1;
Removing impurities in the impurity collector 1306;
turning off an electromagnet, enabling a wool washing vehicle 1301 to enter a cleaning passage 1308 along a guide rail 1303 at the speed of 1m/min, turning on the electromagnet to enable the top of the wool washing vehicle 1301 to be magnetically sealed with a fluid passage II 1307, magnetically sealing the bottom of the wool washing vehicle 1301 with a grease settler 1309, firstly turning on a valve I2, a valve II 3, a valve III 5, a valve IV 6, a valve V10, a valve VII 14 and a valve IX 16, turning off the rest valves, pressurizing liquid CO2 to 8MPa through a CO2 pressurizing pump 7, heating to 50 ℃ through a heat exchanger 8, mixing a mixture of lipase and alkylamine polyoxyethylene ether with 2% of the weight of wool and supercritical (subcritical) CO2 through a metering pump 11, and injecting into the wool washing vehicle 1301, wherein the weight ratio of the lipase to the alkylamine polyoxyethylene ether is 1: 2, opening the valve VII 14, the valve IX 16 and the CO2 circulating pump 17, closing the rest valves, and cleaning under the action of the CO2 circulating pump 17;
After cleaning, opening valves IX 16, X18, XI 19, XII 21, II 3 and III 5, closing the rest valves, decompressing supercritical CO2 to 2MPa in a separation kettle I20 and a separation kettle II 22, heating to 60 ℃, separating from lanolin, cooling to below 0 ℃ in a condenser 4, and recovering liquid CO2 to a CO2 liquid storage tank 1;
lanolin in the grease settler 1309 is removed, the electromagnet is started, and the wool washing vehicle 1301 enters the wool washing vehicle positioner II 13010 along the guide rail 1303 at the speed of 0.5 m/min.
Through detection, the soil impurity content of the cleaned wool is less than or equal to 3 percent, the felt merging rate is less than or equal to 2 percent, and the grease content is less than or equal to 1 percent.
Example 3
A supercritical (sub) critical CO2 waterless wool scouring process using the apparatus of example 1, the supercritical (sub) critical CO2 waterless wool scouring process comprising the steps of:
Adding 50kg of primarily opened yak wool into a wool washing vehicle 1301 positioned in a wool washing vehicle positioner I1302, enabling the wool washing vehicle 1301 to enter a wetting passage 1305 at the speed of 1m/min along a guide rail 1303, starting an electromagnet to enable the top of the wool washing vehicle 1301 to be magnetically sealed with a fluid passage I1304, magnetically sealing the bottom of the wool washing vehicle 1301 with an impurity collector 1306, firstly opening a valve I2, a valve II 3, a valve III 5, a valve IV 6, a valve V10, a valve VI 12 and a valve VIII 15, closing the rest valves, pressurizing liquid CO2 to 15MPa through a CO2 pressurizing pump 7, heating to 35 ℃ through a heat exchanger 8, mixing water with supercritical CO2 according to 1% of the volume of the liquid CO2 through a metering pump 11, then opening the valve VI 12, the valve VIII 15 and a CO2 circulating pump 17, closing the rest valves, and wetting for 10min under the action of the CO2 circulating pump 17;
After wetting, opening a valve VIII 15, a valve X18, a valve XI 19, a valve XII 21, a valve II 3 and a valve III 5, closing the rest valves, reducing the pressure of supercritical (subcritical) CO2 to 0MPa in a separation kettle I20 and a separation kettle II 22, separating the supercritical (subcritical) CO2 from dissolved yak sweat and yakwool fat, cooling the temperature in a condenser 4 to below 0 ℃, and recovering liquid CO2 to the CO2 liquid storage tank 1;
Removing impurities in the impurity collector 1306;
turning off an electromagnet, enabling a wool washing vehicle 1301 to enter a cleaning passage 1308 along a guide rail 1303 at the speed of 1m/min, turning on the electromagnet to enable the top of the wool washing vehicle 1301 to be magnetically sealed with a fluid passage II 1307, magnetically sealing the bottom of the wool washing vehicle 1301 with a grease settler 1309, firstly turning on a valve I2, a valve II 3, a valve III 5, a valve IV 6, a valve V10, a valve VII 14 and a valve IX 16, turning off the rest valves, pressurizing liquid CO2 to 6MPa through a CO2 pressurizing pump 7, heating to 50 ℃ through a heat exchanger 8, mixing a mixture of lipase and alkylamine polyoxyethylene ether with supercritical CO2 according to 2.5% of the weight of yak wool through a metering pump 11, and injecting into the wool washing vehicle 1301, wherein the weight ratio of the lipase to the alkylamine polyoxyethylene ether is 1: 3, opening the valve VII 14, the valve IX 16 and the CO2 circulating pump 17, closing the rest valves, and cleaning under the action of the CO2 circulating pump 17;
after cleaning, opening a valve IX 16, a valve X18, a valve XI 19, a valve XII 21, a valve II 3 and a valve III 5, closing the rest valves, decompressing supercritical (subcritical) CO2 in a separation kettle I20 and a separation kettle II 22 to 2MPa, heating to 60 ℃, separating from yakwool fat, cooling to below 0 ℃ in a condenser 4, and recovering liquid CO2 to a CO2 liquid storage tank 1;
Yak wool grease in the grease settler 1309 is removed, the electromagnet is started, and the wool washing vehicle 1301 enters the wool washing vehicle positioner II 13010 along the guide rail 1303 at the speed of 0.5 m/min.
through detection, the soil impurity content of the cleaned yakwool is less than or equal to 2.8 percent, the felt incorporation rate is less than or equal to 1.8 percent, and the grease content is less than or equal to 0.8 percent.
Example 4
A supercritical (sub) critical CO2 waterless wool scouring process using the apparatus of example 1, the supercritical (sub) critical CO2 waterless wool scouring process comprising the steps of:
adding 50kg of preliminarily loosened alpaca into a wool washing vehicle 1301 positioned in a wool washing vehicle positioner I1302, enabling the wool washing vehicle 1301 to enter a wetting passage 1305 at the speed of 1m/min along a guide rail 1303, starting an electromagnet to enable the top of the wool washing vehicle 1301 to be in magnetic sealing with a fluid passage I1304, enabling the bottom of the wool washing vehicle 1301 to be in magnetic sealing with an impurity collector 1306, firstly opening a valve I2, a valve II 3, a valve III 5, a valve IV 6, a valve V10, a valve VI 12 and a valve VIII 15, closing the rest valves, pressurizing liquid CO2 to 15MPa through a CO2 pressurizing pump 7, heating to 40 ℃ through a heat exchanger 8, mixing water with supercritical CO2 according to 0.5% of the volume of the liquid CO2 through a metering pump 11, then injecting the mixture into the wool washing vehicle 1301, opening the valve VI 12, the valve VIII 15 and a CO2 circulating pump 17, closing the rest valves, and wetting for 10min under the action of the CO2 circulating pump;
After wetting, opening a valve VIII 15, a valve X18, a valve XI 19, a valve XII 21, a valve II 3 and a valve III 5, closing the rest valves, reducing the pressure of supercritical (subcritical) CO2 to 0MPa in a separation kettle I20 and a separation kettle II 22, separating the supercritical (subcritical) CO2 from dissolved alpaca sweat and alpaca hair fat, cooling the supercritical (subcritical) CO2 to below 0 ℃ in a condenser 4, and recovering liquid CO2 to a CO2 liquid storage tank 1;
Removing impurities in the impurity collector 1306;
turning off an electromagnet, enabling a wool washing vehicle 1301 to enter a cleaning passage 1308 along a guide rail 1303 at the speed of 1m/min, turning on the electromagnet to enable the top of the wool washing vehicle 1301 to be magnetically sealed with a fluid passage II 1307, magnetically sealing the bottom of the wool washing vehicle 1301 with a grease settler 1309, firstly turning on a valve I2, a valve II 3, a valve III 5, a valve IV 6, a valve V10, a valve VII 14 and a valve IX 16, turning off the rest valves, pressurizing liquid CO2 to 8MPa through a CO2 pressurizing pump 7, heating to 45 ℃ through a heat exchanger 8, mixing a mixture of lipase and alkylamine polyoxyethylene ether with 1% of the weight of wool and supercritical (subcritical) CO2 through a metering pump 11, and injecting into the wool washing vehicle 1301, wherein the weight ratio of the lipase to the alkylamine polyoxyethylene ether is 1: 2, opening the valve VII 14, the valve IX 16 and the CO2 circulating pump 17, closing the rest valves, and cleaning under the action of the CO2 circulating pump 17;
after cleaning, opening a valve IX 16, a valve X18, a valve XI 19, a valve XII 21, a valve II 3 and a valve III 5, closing the rest valves, decompressing supercritical (subcritical) CO2 in a separation kettle I20 and a separation kettle II 22 to 2MPa, heating to 60 ℃, separating from alpaca hair fat, cooling to below 0 ℃ in a condenser 4, and recovering liquid CO2 to a CO2 liquid storage tank 1;
The alpaca hair grease in the grease settler 1309 is removed, the electromagnet is started, and the hair washing vehicle 1301 enters the hair washing vehicle positioner II 13010 along the guide rail 1303 at the speed of 0.5 m/min.
through detection, the soil impurity content of the cleaned alpaca is less than or equal to 2.7 percent, the felt yield is less than or equal to 2 percent, and the grease content is less than or equal to 1.2 percent.
example 5
a supercritical (sub) critical CO2 waterless wool scouring process using the apparatus of example 1, the supercritical (sub) critical CO2 waterless wool scouring process comprising the steps of:
Adding 80kg of primarily loosened mohair into a wool washing vehicle 1301 positioned in a wool washing vehicle positioner I1302, enabling the wool washing vehicle 1301 to enter a wetting passage 1305 at the speed of 1m/min along a guide rail 1303, starting an electromagnet to enable the top of the wool washing vehicle 1301 to be in magnetic sealing with a fluid passage I1304, enabling the bottom of the wool washing vehicle 1301 to be in magnetic sealing with an impurity collector 1306, firstly opening a valve I2, a valve II 3, a valve III 5, a valve IV 6, a valve V10, a valve VI 12 and a valve VIII 15, closing the rest valves, pressurizing liquid CO2 to 4MPa through a CO2 pressurizing pump 7, heating to 35 ℃ through a heat exchanger 8, mixing water with supercritical CO2 according to 0.8% of the volume of the liquid CO2 through a metering pump 11, then injecting into the wool washing vehicle 1301, opening the valve VI 12, the valve VIII 15 and a CO2 circulating pump 17, closing the rest valves, and wetting for 5min under the action of the CO2 circulating pump;
After wetting, opening a valve VIII 15, a valve X18, a valve XI 19, a valve XII 21, a valve II 3 and a valve III 5, closing the rest valves, reducing the pressure of supercritical (subcritical) CO2 to 0MPa in a separation kettle I20 and a separation kettle II 22, separating the supercritical (subcritical) CO2 from dissolved sheep sweat and wool fat, cooling the supercritical (subcritical) CO2 to below 0 ℃ in a condenser 4, and recovering liquid CO2 to a CO2 liquid storage tank 1;
removing impurities in the impurity collector 1306;
turning off an electromagnet, enabling a wool washing vehicle 1301 to enter a cleaning passage 1308 along a guide rail 1303 at the speed of 1m/min, turning on the electromagnet to enable the top of the wool washing vehicle 1301 to be magnetically sealed with a fluid passage II 1307, magnetically sealing the bottom of the wool washing vehicle 1301 with a grease settler 1309, turning on a valve I2, a valve II 3, a valve III 5, a valve IV 6, a valve V10, a valve VII 14 and a valve IX 16, turning off the rest valves, pressurizing liquid CO2 to 10MPa through a CO2 pressurizing pump 7, heating to 40 ℃ through a heat exchanger 8, mixing a mixture of lipase and alkylamine polyoxyethylene ether with 0.5 percent of the weight of wool and supercritical (subcritical) CO2 through a metering pump 11, and injecting into the wool washing vehicle 1301, wherein the weight ratio of the lipase to the alkylamine polyoxyethylene ether is 1: 2, opening the valve VII 14, the valve IX 16 and the CO2 circulating pump 17, closing the rest valves, and cleaning under the action of the CO2 circulating pump 17;
After cleaning, opening valves IX 16, X18, XI 19, XII 21, II 3 and III 5, closing the rest valves, decompressing supercritical CO2 to 2MPa in a separation kettle I20 and a separation kettle II 22, heating to 60 ℃, separating from lanolin, cooling to below 0 ℃ in a condenser 4, and recovering liquid CO2 to a CO2 liquid storage tank 1;
Lanolin in the grease settler 1309 is removed, the electromagnet is started, and the wool washing vehicle 1301 enters the wool washing vehicle positioner II 13010 along the guide rail 1303 at the speed of 0.5 m/min.
through detection, the soil impurity content of the mohair is less than or equal to 3 percent, the felt yield is less than or equal to 1.9 percent, and the grease content is less than or equal to 1 percent after cleaning.
Claims (6)
1. a tunnel type supercritical (subcritical) CO2 anhydrous wool washing method is characterized in that: the tunnel type supercritical (subcritical) CO2 anhydrous wool washing method comprises the following steps:
putting the preliminarily opened wool (down) fibers into a wool washing vehicle, enabling the wool washing vehicle to enter a wetting passage along a guide rail, sealing the top of the wool washing vehicle with a fluid passage I, sealing the bottom of the wool washing vehicle with an impurity collector, pressurizing liquid CO2 to 1-15MPa, heating to room temperature-40 ℃, mixing water with supercritical (sub) critical CO2 according to 0.1-2% of the volume of liquid CO2, and injecting the mixture into the wool washing vehicle for wetting;
after wetting, the wool washing vehicle enters a cleaning passage along a guide rail, the top of the wool washing vehicle is sealed with a fluid passage II, the bottom of the wool washing vehicle is sealed with a grease settler, liquid CO2 is pressurized to 5-15MPa, the temperature is heated to room temperature to 55 ℃, the mixture of lipase and alkylamine polyoxyethylene ether is mixed according to 0.5-4% of the weight of wool (wool) fibers, and the weight ratio of the lipase to the alkylamine polyoxyethylene ether is 1: and 2-4, injecting the mixture into a wool washing vehicle, and cleaning.
2. the tunnel-type supercritical (sub) critical CO2 waterless wool scouring method according to claim 1, characterized in that: after wetting, the pressure of the supercritical (subcritical) CO2 is reduced to 0MPa in a separation kettle, the supercritical (subcritical) CO2 is separated from dissolved sweat and grease, the temperature is reduced to below 0 ℃ in a condenser, and liquid CO2 is recovered.
3. The tunnel-type supercritical (sub) critical CO2 waterless wool scouring method according to claim 2, characterized in that: and removing impurities in the impurity collector after wetting.
4. The tunnel-type supercritical (sub) critical CO2 anhydrous wool scouring method according to claim 3, characterized in that: and (3) after cleaning, decompressing the supercritical (subcritical) CO2 in a separation kettle to 2-3MPa, heating to 50-60 ℃, separating from grease, cooling to below 0 ℃ in a condenser, and recovering liquid CO 2.
5. the tunnel-type supercritical (sub) critical CO2 waterless wool scouring method according to claim 4, wherein: and cleaning the grease in the grease settler after cleaning.
6. the tunnel-type supercritical (sub) critical CO2 anhydrous wool scouring method according to claim 5, wherein: the wool (wool) fiber is wool, cashmere, yak hair, yak wool, alpaca hair or mohair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910867394.3A CN110541202B (en) | 2019-09-12 | 2019-09-12 | Tunnel type supercritical (subcritical) CO2Waterless wool washing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910867394.3A CN110541202B (en) | 2019-09-12 | 2019-09-12 | Tunnel type supercritical (subcritical) CO2Waterless wool washing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110541202A true CN110541202A (en) | 2019-12-06 |
| CN110541202B CN110541202B (en) | 2021-12-03 |
Family
ID=68713511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910867394.3A Active CN110541202B (en) | 2019-09-12 | 2019-09-12 | Tunnel type supercritical (subcritical) CO2Waterless wool washing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110541202B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191103228A (en) * | 1910-02-09 | 1911-04-13 | Joseph Baudot | Improvements in or relating to Wool Washing and Degreasing Machines. |
| CN1333400A (en) * | 2000-12-14 | 2002-01-30 | 孙传经 | Supercritical carbon dioxide dry cleaner |
| CN1772856A (en) * | 2004-11-08 | 2006-05-17 | 浙江霸力（鞋业）集团有限公司 | Technological process of extracting and recovering lanoline from un-degreased wool |
| CN101046000A (en) * | 2007-04-13 | 2007-10-03 | 廖秀义 | Raw wool treating supercritical CO2 process |
| CN105018656A (en) * | 2014-04-22 | 2015-11-04 | 王志龙 | Method for cleaning used leather with supercritical carbon dioxide |
| CN106676788A (en) * | 2016-11-21 | 2017-05-17 | 大连工业大学 | Flax thick yarn supercritical CO2 biological enzyme scouring device and scouring method thereof |
-
2019
- 2019-09-12 CN CN201910867394.3A patent/CN110541202B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191103228A (en) * | 1910-02-09 | 1911-04-13 | Joseph Baudot | Improvements in or relating to Wool Washing and Degreasing Machines. |
| CN1333400A (en) * | 2000-12-14 | 2002-01-30 | 孙传经 | Supercritical carbon dioxide dry cleaner |
| CN1772856A (en) * | 2004-11-08 | 2006-05-17 | 浙江霸力（鞋业）集团有限公司 | Technological process of extracting and recovering lanoline from un-degreased wool |
| CN101046000A (en) * | 2007-04-13 | 2007-10-03 | 廖秀义 | Raw wool treating supercritical CO2 process |
| CN105018656A (en) * | 2014-04-22 | 2015-11-04 | 王志龙 | Method for cleaning used leather with supercritical carbon dioxide |
| CN106676788A (en) * | 2016-11-21 | 2017-05-17 | 大连工业大学 | Flax thick yarn supercritical CO2 biological enzyme scouring device and scouring method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110541202B (en) | 2021-12-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106010662B (en) | Organic waste two-step pretreatment System and method for based on super/subcritical water technique | |
| CN105154144B (en) | A kind of negative pressure benzene removal device and de- benzene method | |
| CN101884992B (en) | New energy-saving cleaning technology and device of light oil rail tanker, liquefied gas tanker or ammonia tanker | |
| CN110541202B (en) | Tunnel type supercritical (subcritical) CO2Waterless wool washing method | |
| CN210583956U (en) | A vacuum belt filter washes edulcoration device for lithium ore pulp | |
| CN110528089B (en) | Super (sub) critical CO2 wool scouring method | |
| CN103255610A (en) | Cleaning method of wool fiber | |
| CN110468457B (en) | Super (sub) critical CO2Wool washing device | |
| CN105236680A (en) | Method for purifying gas liquor | |
| CN110468458B (en) | Tunnel type supercritical (subcritical) CO2Waterless wool washing device | |
| TWI703254B (en) | Supercritical carbon dioxide printing and dyeing process and the system thereof | |
| CN202490504U (en) | Purification recovery device of mercerizing waste alkali liquor | |
| CN210393787U (en) | Coal gasification black water vacuum flash evaporation gas low-temperature waste heat energy recovery device | |
| CN202625970U (en) | Purification and recovery device for denim mercerization exhausted lye | |
| CN209522604U (en) | One kind being directed to mercerization recycle of alkali liquor mechanical recompression vapour system | |
| DE4204088A1 (en) | METHOD AND ARRANGEMENT FOR RECOVERING ENERGY AND CHEMICALS IN SULPHATE PULP PROCESS | |
| CN101785940B (en) | Method and device for online cleaning filtering cloth for filtering sodium aluminate slurry | |
| CN208440855U (en) | A kind of dry cleaner | |
| CN105754663A (en) | Residual pressure energy recovery system and method for coal gasification black water treatment system | |
| CN207219395U (en) | A kind of agricultural pulls up device with fresh branches and leaves of peanut seedling | |
| CN1048837A (en) | Comprehensive treating system for wool washing waste water | |
| CN210766137U (en) | Supercritical carbon dioxide printing and dyeing system | |
| CN110511829A (en) | One kind being suitable for super (Asia) critical CO2Hair detergent and using one bath segmentation scouring of wool method | |
| CN105211448A (en) | A kind of combined type instant coffee constant temperature countercurrent extraction tank | |
| CN206886717U (en) | Reverse-flow string cleaning device inside a kind of MVR evaporators plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |