CN110468457B - Super (sub) critical CO2Wool washing device - Google Patents
Super (sub) critical CO2Wool washing device Download PDFInfo
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- CN110468457B CN110468457B CN201910867401.XA CN201910867401A CN110468457B CN 110468457 B CN110468457 B CN 110468457B CN 201910867401 A CN201910867401 A CN 201910867401A CN 110468457 B CN110468457 B CN 110468457B
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- 238000005406 washing Methods 0.000 title claims abstract description 105
- 210000002268 wool Anatomy 0.000 claims abstract description 123
- 238000000926 separation method Methods 0.000 claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000012535 impurity Substances 0.000 claims abstract description 22
- 239000006184 cosolvent Substances 0.000 claims abstract description 21
- 239000012528 membrane Substances 0.000 claims abstract description 16
- 238000003860 storage Methods 0.000 claims description 23
- 239000007788 liquid Substances 0.000 claims description 22
- 239000002904 solvent Substances 0.000 claims description 13
- 210000004209 hair Anatomy 0.000 claims description 10
- 238000009991 scouring Methods 0.000 claims description 9
- 239000006096 absorbing agent Substances 0.000 claims description 2
- 239000004519 grease Substances 0.000 abstract description 11
- 239000012736 aqueous medium Substances 0.000 abstract description 7
- 238000011084 recovery Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 10
- 239000004166 Lanolin Substances 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- 229940039717 lanolin Drugs 0.000 description 5
- 235000019388 lanolin Nutrition 0.000 description 5
- 238000009987 spinning Methods 0.000 description 4
- 241001494479 Pecora Species 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000004043 dyeing Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 210000004243 sweat Anatomy 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 241000209504 Poaceae Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009960 carding Methods 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009950 felting Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B11/00—Recovery or refining of other fatty substances, e.g. lanolin or waxes
- C11B11/005—Lanolin; Woolfat
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01C—CHEMICAL OR BIOLOGICAL TREATMENT OF NATURAL FILAMENTARY OR FIBROUS MATERIAL TO OBTAIN FILAMENTS OR FIBRES FOR SPINNING; CARBONISING RAGS TO RECOVER ANIMAL FIBRES
- D01C3/00—Treatment of animal material, e.g. chemical scouring of wool
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/74—Recovery of fats, fatty oils, fatty acids or other fatty substances, e.g. lanolin or waxes
Abstract
The invention relates to supercritical (subcritical) CO2Wool washing device belongs to wool washing equipment field. The device comprises supercritical (sub-) critical CO2A kettle body and a kettle cover of the wool washing kettle; CO is arranged at the bottom of the kettle body2An inlet, wherein CO is arranged on the kettle body2An outlet; a water impurity separation membrane, a porous bottom plate and a porous cover plate are sequentially arranged in the kettle body from bottom to top; a wool (velvet) bin is arranged between the porous bottom plate and the porous cover plate; the top of the kettle cover is provided with a cosolvent inlet, a distributor is arranged in the kettle cover, and when the kettle cover is covered on the kettle body, the CO is introduced into the kettle2The outlet is arranged between the porous cover plate and the distributor; the invention utilizes supercritical (subcritical) CO2Replaces the chemical wool washing of aqueous medium, solves the problems of high water consumption and high pollution in the wool washing process of the aqueous medium, can realize the high-efficiency recovery of grease, and meets the requirement of clean production in the wool washing process.
Description
Technical Field
The invention relates to supercritical (subcritical) CO2Wool washing device belongs to wool washing equipment field.
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, the degreasing is usually finished at a higher temperature under a stronger mechanical action, generally 15-40 t of water is consumed for 1t of wool, and the COD value of the wool washing wastewater is as high as 4 multiplied by 10 due to the organic pollutants such as the lanolin, the sheep sweat and the like4～6× 104mg/L, recovery of 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. By using CO2The fluid is used as a cleaning medium to carry out processing such as dyeing, modification and the like on fiber materials, and the fluid has made a staged research progress at home and abroad. CO compared with aqueous dyeing2The cleaning agent is non-toxic, non-flammable, low in price, zero in emission and free of pollution, has the characteristics of high solubility and diffusivity, and shows a good application prospect in the aspect of cleaning wool (down) fibers.
Disclosure of Invention
The invention provides supercritical (sub) critical CO 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 process2The wool washing device solves the problems of high water consumption and high pollution in the existing aqueous medium wool washing process, can realize high-efficiency recovery of grease, and meets the requirement of clean production in the wool washing process.
The invention provides a supercritical (subcritical) CO2A wool washing kettle, said supercritical (subcritical) CO2The wool washing kettle comprises a kettle body of the wool washing kettle and a kettle cover of the wool washing kettle; CO is arranged at the bottom of the kettle body2An inlet; a water impurity separation membrane is arranged in the kettle body, and a water enrichment area is formed between the water impurity separation membrane and the bottom of the kettle body; a porous bottom plate is arranged in the kettle body and positioned above the water impurity separation membrane, and an impurity enrichment region is formed between the porous bottom plate and the water impurity separation membrane; a porous cover plate is arranged in the kettle body and positioned above the porous bottom plate, and a wool (velvet) bin is arranged between the porous cover plate and the porous bottom plate; a slide rail is arranged on the porous cover plate, one end of the opening rod slides on the slide rail, and the other end of the opening rod extends into the wool (down) bin; a distributor is arranged in the kettle cover, and when the kettle cover is covered on the kettle body, a mixing passage is formed between the distributor and the porous cover plate; CO is arranged on the kettle body2And the CO is discharged2The outlet is arranged between the porous cover plate and the distributor; a cosolvent inlet is formed in the top of the kettle cover, and a cosolvent passage is formed between the cosolvent inlet and the distributor; and a magnetic driver is arranged on the kettle cover to control the opening rod to slide on the sliding rail.
According to the invention, a plurality of ultrasonic transducers are preferably arranged at the bottom of the kettle body.
In the present invention, it is preferable that the tank cover is provided with an ultrasonic vibration rod extending into the mixing passage.
The invention is preferably that the wool (velvet) cabin is provided with a lifting ring.
The invention preferably has the pore diameter of the water-impurity separation membrane of 0.1-1 μm.
The invention preferably has a pore size of 0.1-1 mm.
The invention preferably has the pore diameter of the porous cover plate of 1-10 mm.
Another object of the present invention is to provide a supercritical (sub-) critical CO2A wool scouring apparatus, said supercritical (sub-) critical CO2The wool scouring device comprises CO2Liquid storage tank, condenser, CO2Pressurizing pump, heat exchanger, solvent storage tank, metering pump, and supercritical (subcritical) CO2Hair washing deviceKettle and CO2A circulating pump, a separation kettle and an absorber; the CO is2An outlet I of the liquid storage tank sequentially passes through a valve I, a valve II, a condenser, a valve III, a valve IV and CO2The booster pump is connected with an inlet I of the heat exchanger; the solvent storage tank is connected with an inlet I of the heat exchanger sequentially through a metering pump and a valve V; the outlet of the heat exchanger is communicated with supercritical (subcritical) CO through a valve VI2CO of wool washing kettle2An inlet connection; the inlet of the valve XIII is connected between the metering pump and the valve V; valve XIII outlet with the supercritical (sub-) critical CO2The cosolvent inlet of the wool washing kettle is connected; the supercritical (subcritical) CO2CO of wool washing kettle2The outlet is sequentially connected with a valve VIII and a valve CO2The circulating pump is connected with an inlet II of the heat exchanger; the inlet of the valve X is connected to the valve VIII and CO2Between the circulating pumps; the outlet of the valve X is connected between the valve I and the valve II through a valve XI, a separation kettle and an adsorber in sequence; the CO is2The inlet II of the liquid storage tank is connected between the valve III and the valve IV.
The present invention preferably is said supercritical (sub-) critical CO2The wool washing device comprises more than 1 supercritical (subcritical) CO2And (5) a wool washing kettle.
The present invention preferably is said supercritical (sub-) critical CO2The wool washing device comprises more than 1 separation kettle.
The invention has the beneficial effects that:
the invention utilizes supercritical (subcritical) CO2Replaces the chemical wool washing of aqueous medium, solves the problems of high water consumption and high pollution in the wool washing process of the aqueous medium, can realize the high-efficiency recovery of grease, and meets the requirement of clean production in the wool washing process.
Drawings
In the figure 3 of the attached drawings of the invention,
FIG. 1 shows the supercritical (sub-) critical CO of example 12The structure schematic diagram of the wool washing kettle;
FIG. 2 is a schematic structural view of the porous cover plate according to example 1;
FIG. 3 shows the supercritical (sub-) critical CO of example 22The structure schematic diagram of the wool washing device;
wherein 1, CO2Liquid, method for producing the same and use thereofStorage tank, 2, valves I and 3, valves II and 4, condenser, 5, valves III and 6, valves IV and 7 and CO2A booster pump 8, a heat exchanger 9, a solvent storage tank 10, valves V and 11, a metering pump 12, valves VI and 13 and supercritical (subcritical) CO2Wool washing kettle I, 1301, kettle body, 1301-1 and CO2An inlet 1301-2, a water impurity separation membrane 1301-3, a porous bottom plate 1301-4, a porous cover plate 1301-5, a wool (wool) bin 1301-6, a slide rail 1301-7, an opening rod 1301-8 and CO2An outlet 1301-9, an ultrasonic transducer 1301-10, a lifting ring 1302, a kettle cover 1302, 1302-1, a distributor 1302-2, a cosolvent inlet 1302-3, a magnetic driver 1302-4, an ultrasonic vibration rod 14, a valve VII, 15, a valve VIII, 16, a valve IX, 17, CO2A circulating pump, 18, valves X, 19, valves XI, 20, separation kettles I, 21, valves XII, 22, separation kettles II, 23, an adsorber, 24, valves XIII, 25, and supercritical (subcritical) CO2Wool washing kettles II and 26 and a valve XIV.
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
Super (sub) critical CO2A wool washing kettle, said supercritical (subcritical) CO2The wool washing kettle comprises a kettle body 1301 of the wool washing kettle and a kettle cover 1302 of the wool washing kettle;
CO is arranged at the bottom of the kettle body 13012An inlet 1301-1 and a plurality of ultrasonic transducers 1301-9;
a water impurity separation membrane 1301-2 with the aperture of 0.5 mu m is arranged in the kettle body 1301, and a water enrichment area is formed between the water impurity separation membrane 1301-2 and the bottom of the kettle body 1301;
a porous bottom plate 1301-3 with the aperture of 0.5mm is arranged in the kettle body 1301, the porous bottom plate 1301-3 is positioned above the water impurity separation membrane 1301-2, and an impurity enrichment area is formed between the porous bottom plate 1301-3 and the water impurity separation membrane 1301-2;
a porous cover plate 1301-4 with the aperture of 5mm is arranged in the kettle body 1301, the porous cover plate 1301-4 is positioned above the porous bottom plate 1301-3, and a wool (velvet) bin 1301-5 is arranged between the porous cover plate 1301-4 and the porous bottom plate 1301-3;
the hair (velvet) bin 1301-5 is provided with a lifting ring 1301-10;
the porous cover plates 1301-4 are provided with slide rails 1301-6, one ends of the opening rods 1301-7 slide on the slide rails 1301-6, and the other ends of the opening rods 1301-7 extend into the wool (down) bins 1301-5;
a distributor 1302-1 is arranged in the kettle cover 1302, and when the kettle cover 1302 covers the kettle body 1301, a mixing passage is formed between the distributor 1302-1 and the porous cover plates 1301-4;
an ultrasonic vibrating rod 1302-4 extending into the mixing passage is arranged on the kettle cover 1302;
CO is arranged on the kettle body 13012 Outlets 1301 to 8, and the CO2Outlets 1301-8 are between the porous cover plates 1301-4 and the distributor 1302-1;
a cosolvent inlet 1302-2 is formed in the top of the kettle cover 1302, and a cosolvent passage is formed between the cosolvent inlet 1302-2 and the distributor 1302-1;
a magnetic driver 1302-3 is arranged on the kettle cover 1302 to control the opening rods 1301-7 to slide on the sliding rails 1301-6.
Example 2
Super (sub) critical CO2A wool scouring apparatus, said supercritical (sub-) critical CO2The wool scouring device comprises CO2Liquid storage tank 1, condenser 4, CO2Pressure pump 7, heat exchanger 8, solvent storage tank 9, metering pump 11, supercritical (subcritical) CO described in example 12Wool washing kettle I13 and supercritical (subcritical) CO2Supercritical CO (subcritical) in the same wool washing kettle I132Wool washing kettle II 25 and CO2A circulating pump 17, a separation kettle I20, a separation kettle II 22 and an adsorber 23;
the CO is2An outlet I of the liquid storage tank 1 sequentially passes through a valve I2, a valve II 3, a condenser 4, a valve III 5, a valve IV 6 and CO2The booster pump 7 is connected with an inlet I of the heat exchanger 8;
the solvent storage tank 9 is connected with an inlet I of the heat exchanger 8 sequentially through a metering pump 11 and a valve V10;
the outlet I of the heat exchanger 8 is communicated with supercritical (subcritical) CO through a valve VI 122CO of wool washing kettle I132Inlet 1301-1 is connected;
the outlet II of the heat exchanger 8 is communicated with supercritical (subcritical) CO through a valve VII 142CO of wool washing kettle II 252An inlet connection;
the inlet of the valve XIII24 is connected between the metering pump 11 and the valve V10;
outlet of valve XIII24 and the supercritical (sub-) critical CO2A cosolvent inlet 1302-2 of the wool washing kettle I13 is connected;
the inlet of the valve XIV26 is connected to the valve XIII24 and to the supercritical (sub-) critical CO2A wool washing kettle I13;
outlet of valve XIV26 and the supercritical (sub-) critical CO2The cosolvent inlet of the wool washing kettle II 25 is connected;
the supercritical (subcritical) CO2CO of wool washing kettle I132The outlets 1301-8 pass through a valve VIII 15, a valve IX 16 and supercritical (subcritical) CO in sequence2CO of wool washing kettle II 252An outlet connection;
the CO is2The inlet of the circulation pump 17 is connected between the valve VIII 15 and the valve IX 16;
the CO is2The outlet of the circulating pump 17 is connected with the inlet II of the heat exchanger 8;
the inlet of valve X18 is connected between said valve VIII 15 and 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 CO is2The inlet II of the liquid tank 1 is connected between the valve III 5 and the valve IV 6.
Example 3
Super (sub) critical CO Using the apparatus described in example 22A method of scouring hair, the method comprising the steps of:
firstly, respectively conveying the preliminarily opened wool (down) fibers to supercritical (subcritical) CO2Wool (down) bin 1301-5 of wool washing kettle I13 and supercritical (subcritical) CO2In the wool (down) cabin of the wool washing kettle II 25, supercritical (subcritical) CO is added2Wool (down) bin 1301-5 of wool washing kettle I13 and supercritical (subcritical) CO2The hair (down) bins of the hair washing kettle II 25 are respectively filled with supercritical (subcritical) CO2Kettle body 1301 of wool washing kettle I13 and supercritical (subcritical) CO2In the kettle body of the wool washing kettle II 25, the supercritical (subcritical) CO is closed2 Kettle cover 1302 of wool washing kettle I13 and supercritical (subcritical) CO2A kettle cover of the wool washing kettle II 25;
mixing liquid CO2To CO2In the liquid storage tank 1, the cosolvent is conveyed into a solvent storage tank 9;
when washing hair, firstly opening the valve I2, the valve II 3, the valve III 5, the valve IV 6, the valve V10, the valve VI 12, the valve VII 14, the valve VIII 15 and the valve IX 16, and closing the other valves to enable CO to be in contact with the hair2Liquid CO in the liquid storage tank 12Via condenser 4 → CO2The mixture is mixed with a cosolvent after being pressurized by a pressure pump 7, heated by a heat exchanger 8 and then enters into supercritical (subcritical) CO2State and simultaneously flowing supercritical (subcritical) CO2CO of wool washing kettle I132Inlet 1301-1 and supercritical (subcritical) CO2CO of wool washing kettle II 252The inlet is opened again, the valve VI 12, the valve VII 14, the valve VIII 15, the valve IX 16, a magnetic driver 1302-3, an ultrasonic vibration rod 1302-4, an ultrasonic transducer 1301-9 and CO2The circulating pump 17 is used for closing other valves and circularly washing wool;
after the wool washing is finished, the valves VIII 15, IX 16, X18, XI 19, XII 21, II 3 and III 5 are opened, the other valves are closed, and supercritical (subcritical) CO is carried out2Flows into the separation kettle I20 → separation kettle II 22 → adsorber 23 → condenser 4 → CO2Liquid CO recovery from liquid storage tank 12Realizing multi-stage separation of grease in a separation kettle I20 and a separation kettle II 22, and opening supercritical (subcritical) CO2Wool washing kettle I13 and supercritical (subcritical) CO2And (3) collecting grease and removing insoluble impurities such as soil in the wool washing kettle II 25, and meanwhile, opening the separation kettle I20 and the separation kettle II 22 to collect the grease.
Example 4
Super (sub) critical CO Using the apparatus described in example 22A method of scouring hair, the method comprising the steps of:
firstly, the preliminarily opened wool (down) fibers are respectivelyTo supercritical (sub-) critical CO2Wool (down) bin 1301-5 of wool washing kettle I13 and supercritical (subcritical) CO2In the wool (down) cabin of the wool washing kettle II 25, supercritical (subcritical) CO is added2Wool (down) bin 1301-5 of wool washing kettle I13 and supercritical (subcritical) CO2The hair (down) bins of the hair washing kettle II 25 are respectively filled with supercritical (subcritical) CO2Kettle body 1301 of wool washing kettle I13 and supercritical (subcritical) CO2In the kettle body of the wool washing kettle II 25, the supercritical (subcritical) CO is closed2 Kettle cover 1302 of wool washing kettle I13 and supercritical (subcritical) CO2A kettle cover of the wool washing kettle II 25;
mixing liquid CO2To CO2In the liquid storage tank 1, the cosolvent is conveyed into a solvent storage tank 9;
when washing hair, firstly opening the valve I2, the valve II 3, the valve III 5, the valve IV 6, the valve VI 12, the valve VII 14, the valve VIII 15, the valve IX 16, the valve XIII24 and the valve XIV26, and closing the other valves to enable CO to be discharged2Liquid CO in the liquid storage tank 12Via condenser 4 → CO2The booster pump 7 → the heat exchanger 8 is heated and then enters into the supercritical (subcritical) CO2State and simultaneously flowing supercritical (subcritical) CO2CO of wool washing kettle I132Inlet 1301-1 and supercritical (subcritical) CO2CO of wool washing kettle II 252The CO-solvent in the solvent tank 9 flows into the supercritical (sub-) critical CO via the metering pump 11 at the same time2Cosolvent inlet 1302-2 and supercritical (subcritical) CO of wool washing kettle I132Opening a cosolvent inlet of a wool washing kettle II 25, and then opening a valve VI 12, a valve VII 14, a valve VIII 15, a valve IX 16, a magnetic driver 1302-3, an ultrasonic vibration rod 1302-4, an ultrasonic transducer 1301-9, CO2The circulating pump 17 is used for closing other valves and circularly washing wool;
after the wool washing is finished, the valves VIII 15, IX 16, X18, XI 19, XII 21, II 3 and III 5 are opened, the other valves are closed, and supercritical (subcritical) CO is carried out2Flows into the separation kettle I20 → separation kettle II 22 → adsorber 23 → condenser 4 → CO2Liquid CO recovery from liquid storage tank 12Realizing multi-stage separation of grease in a separation kettle I20 and a separation kettle II 22, and opening supercritical (subcritical) CO2Wool washing kettle I13 and supercritical (subcritical) CO2The wool washing kettle II 25 collects grease and removes insoluble impurities such as soilAnd simultaneously, opening the separation kettle I20 and the separation kettle II 22 to collect the grease.
Claims (10)
1. Supercritical/subcritical CO2The wool washing kettle is characterized in that: the supercritical/subcritical CO2The wool washing kettle comprises a kettle body of the wool washing kettle and a kettle cover of the wool washing kettle;
CO is arranged at the bottom of the kettle body2An inlet;
a water impurity separation membrane is arranged in the kettle body, and a water enrichment area is formed between the water impurity separation membrane and the bottom of the kettle body;
a porous bottom plate is arranged in the kettle body and positioned above the water impurity separation membrane, and an impurity enrichment region is formed between the porous bottom plate and the water impurity separation membrane;
a porous cover plate is arranged in the kettle body and positioned above the porous bottom plate, and a wool/wool bin is arranged between the porous cover plate and the porous bottom plate;
a slide rail is arranged on the porous cover plate, one end of the opening rod slides on the slide rail, and the other end of the opening rod extends into the wool/down bin;
a distributor is arranged in the kettle cover, and when the kettle cover is covered on the kettle body, a mixing passage is formed between the distributor and the porous cover plate;
CO is arranged on the kettle body2And the CO is discharged2The outlet is arranged between the porous cover plate and the distributor;
a cosolvent inlet is formed in the top of the kettle cover, and a cosolvent passage is formed between the cosolvent inlet and the distributor;
and a magnetic driver is arranged on the kettle cover to control the opening rod to slide on the sliding rail.
2. The supercritical/subcritical CO according to claim 12The wool washing kettle is characterized in that: the bottom of the kettle body is provided with a plurality of ultrasonic transducers.
3. The supercritical/subcritical CO according to claim 22The wool washing kettle is characterized in that: the kettleThe cover is provided with an ultrasonic vibration rod extending into the mixing passage.
4. The supercritical/subcritical CO according to claim 32The wool washing kettle is characterized in that: the hair/down bin is provided with a lifting ring.
5. The supercritical/subcritical CO according to claim 42The wool washing kettle is characterized in that: the aperture of the water and impurity separation membrane is 0.1-1 μm.
6. The supercritical/subcritical CO according to claim 52The wool washing kettle is characterized in that: the aperture of the porous bottom plate is 0.1-1 mm.
7. The supercritical/subcritical CO according to claim 62The wool washing kettle is characterized in that: the aperture of the porous cover plate is 1-10 mm.
8. Supercritical/subcritical CO2Wool washing device, its characterized in that: the supercritical/subcritical CO2The wool scouring device comprises CO2Liquid storage tank, condenser, CO2Pressurizing pump, heat exchanger, solvent storage tank, metering pump, supercritical/subcritical CO according to any one of claims 1 to 72Wool scouring kettle, CO2A circulating pump, a separation kettle and an absorber;
the CO is2An outlet I of the liquid storage tank sequentially passes through a valve I, a valve II, a condenser, a valve III, a valve IV and CO2The booster pump is connected with an inlet I of the heat exchanger;
the solvent storage tank is connected with an inlet I of the heat exchanger sequentially through a metering pump and a valve V;
the outlet of the heat exchanger passes through a valve VI and supercritical/subcritical CO2CO of wool washing kettle2An inlet connection;
the inlet of the valve XIII is connected between the metering pump and the valve V;
outlet of valve XIII and the supercritical/subcritical CO2The cosolvent inlet of the wool washing kettle is connected;
the above-mentioned superSubcritical CO2CO of wool washing kettle2The outlet is sequentially connected with a valve VIII and a valve CO2The circulating pump is connected with an inlet II of the heat exchanger;
the inlet of the valve X is connected to the valve VIII and CO2Between the circulating pumps;
the outlet of the valve X is connected between the valve I and the valve II through a valve XI, a separation kettle and an adsorber in sequence;
the CO is2The inlet II of the liquid storage tank is connected between the valve III and the valve IV.
9. The supercritical/subcritical CO according to claim 82Wool washing device, its characterized in that: the supercritical/subcritical CO2The wool washing device comprises more than 2 supercritical/subcritical CO2And (5) a wool washing kettle.
10. The supercritical/subcritical CO according to claim 92Wool washing device, its characterized in that: the supercritical/subcritical CO2The wool washing device comprises more than 2 separation kettles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910867401.XA CN110468457B (en) | 2019-09-12 | 2019-09-12 | Super (sub) critical CO2Wool washing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910867401.XA CN110468457B (en) | 2019-09-12 | 2019-09-12 | Super (sub) critical CO2Wool washing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110468457A CN110468457A (en) | 2019-11-19 |
| CN110468457B true CN110468457B (en) | 2022-02-08 |
Family
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