CN209890899U - Supercritical carbon dioxide anhydrous dyeing device - Google Patents
Supercritical carbon dioxide anhydrous dyeing device Download PDFInfo
- Publication number
- CN209890899U CN209890899U CN201920435938.4U CN201920435938U CN209890899U CN 209890899 U CN209890899 U CN 209890899U CN 201920435938 U CN201920435938 U CN 201920435938U CN 209890899 U CN209890899 U CN 209890899U
- Authority
- CN
- China
- Prior art keywords
- dyeing
- output shaft
- shell
- cylindrical shell
- gear
- 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.)
- Active
Links
- 238000004043 dyeing Methods 0.000 title claims abstract description 71
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 32
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 32
- 238000009970 yarn dyeing Methods 0.000 claims abstract description 20
- 239000000975 dye Substances 0.000 claims description 43
- 238000002156 mixing Methods 0.000 claims description 17
- 238000005192 partition Methods 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000007639 printing Methods 0.000 abstract description 18
- 239000004744 fabric Substances 0.000 abstract description 8
- 239000004753 textile Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 14
- 230000008569 process Effects 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 239000002351 wastewater Substances 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- -1 assistant Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Landscapes
- Treatment Of Fiber Materials (AREA)
Abstract
The utility model relates to a textile printing and dyeing technical field especially relates to a supercritical carbon dioxide anhydrous dyeing device. It is including the casing that is equipped with carbon dioxide air inlet and gas outlet, set up yarn dyeing column group and drive in the casing yarn dyeing column group pivoted motor, the output shaft of motor sets up in the center pin of casing, yarn dyeing column group include a plurality of with the output shaft is the cylindrical shell of center, radius increase in proper order, the conch wall of cylindrical shell is equipped with a plurality of through-holes, the cylindrical shell with output shaft, cylindrical shell are connected through gear drive structure respectively rather than adjacent cylindrical shell, gear drive structure including the cover locate cylindrical shell outer wall or output shaft the gear with set up in rather than adjacent cylindrical shell inner wall, can with gear engagement's ring gear. The utility model has the characteristics of can once only carry out the dyeing of batch fabric, and dye evenly.
Description
Technical Field
The utility model relates to a textile printing and dyeing technical field especially relates to a supercritical carbon dioxide anhydrous dyeing device.
Background
In recent years, the printing and dyeing industry in China is rapidly developed, diversified investment is greatly increased, and the global capacity share is continuously increased, so that the printing and dyeing industry in China becomes the largest-scale country in the world printing and dyeing industry. However, the problem of contamination is not insignificant. Due to the requirement of the printing and dyeing processing technology, a large amount of water is consumed in the processing process of the printing and dyeing cloth, the water is consumed by about 20t for every 1t of produced fabric on average, 80-90% of the water becomes waste water, and the environment is greatly polluted. The printing and dyeing wastewater generally has the characteristics of large wastewater quantity, complex water quality, serious pollution, high COD value, low BOD/COD value, poor biodegradability, large change of water quality and water quantity, high chroma and the like, and is one of the difficult-to-treat process wastewater. The waste water contains dye, slurry, assistant, oil, acid and alkali, fiber impurity, sand matter, inorganic salt, etc. Due to the development of chemical fiber fabrics and the improvement of the finishing technology after printing and dyeing, a large amount of organic matters such as PVA slurry, novel additives and the like which are difficult to be biochemically degraded enter printing and dyeing wastewater, and the treatment difficulty is increased.
With the enhancement of environmental awareness, the problem of environmental pollution of printing and dyeing wastewater has been gradually emphasized by people, and a great deal of research and discussion has been conducted in this respect in various countries. The traditional textile printing and dyeing after-finishing is a processing process taking dye, chemical auxiliary agents and water as main media, how to reduce water consumption, reduce the discharge of toxic and harmful chemicals and reduce the generation of wastes, and the pollution-changing end treatment is the initial and intermediate process treatment of processing, so that the clean processing production is realized, and the key of the sustainable development of the current textile printing and dyeing industry is realized. At present, the printing and dyeing industry is transformed through a large-scale technology, a large amount of energy-saving, water-saving, consumption-reducing and environment-friendly equipment is used for gradually replacing and eliminating laggard equipment with high energy consumption and water consumption and poor stability, and the specific gravity of world advanced printing and dyeing equipment is greatly improved particularly in eastern coastal areas. In addition, a new process is also adopted in the dyeing process, and the dyeing process is mainly carried out from two aspects: treating printing and dyeing wastewater and cleaning and dyeing. The clean dyeing is to solve the pollution problem in the printing and dyeing process, such as pollution-free dyeing, waterless or wastewater easy-to-treat dyeing and the like.
The traditional printing and dyeing process consumes a large amount of water resources, and the environment is polluted by refractory toxic substances discharged by industrial wastewater. The water resource problem and the environmental pollution problem force the textile industry to transform and research a novel clean, energy, efficient and environment-friendly process production process.
At present, the common non-aqueous dyeing methods mainly comprise two main types of organic solvent dyeing and supercritical carbon dioxide dyeing. The supercritical carbon dioxide dyeing technology was invented by the northwest textile research center e.schollmeyer in germany in 1989. The technology adopts supercritical carbon dioxide as a dyeing medium, the dye is dissolved and sent to fiber pores, so that the dye is quickly and uniformly dyed on the fabric, the carbon dioxide can be fully separated from the dye after dyeing is finished, the operation processes of cleaning, drying and the like are not needed, and the unused dye can be recovered.
Patent document CN201821111778.X discloses such dyeing kettle and dyeing equipment for supercritical dyeing, including the cavity dyeing kettle body, the bottom of dyeing kettle body is equipped with the air inlet, and the lateral wall of dyeing kettle body is equipped with the gas outlet, and the inside of dyeing kettle body is equipped with the yarn dyeing post, is equipped with first through-hole in the yarn dyeing post, first through-hole and air inlet intercommunication. The yarn dyeing column is formed by connecting a plurality of sub yarn dyeing columns in series, and the sub yarn dyeing columns are made of sintered metal porous filtering materials. The yarn dyeing column formed by connecting a plurality of sub yarn dyeing columns in series in the kettle body cannot fully utilize the radial space in the kettle body, and only a small amount of yarns can be dyed at one time, so that the problem of low dyeing efficiency is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the above problem and provide a disposable dyeing that can carry out a large amount of fabrics, and the anhydrous dyeing apparatus of supercritical carbon dioxide who dyes evenly.
The utility model provides a technical scheme of problem provide an anhydrous dyeing apparatus of supercritical carbon dioxide, including the casing that is equipped with carbon dioxide air inlet and gas outlet, set up yarn dyeing column group and the drive in the casing dye yarn column group pivoted motor, the output shaft of motor sets up in the center pin of casing, dye yarn column group including a plurality of with the output shaft is the center, the radius increases tube-shape casing in proper order, tube-shape casing's conch wall is equipped with a plurality of through-holes, tube-shape casing with output shaft, tube-shape casing are connected through gear drive structure respectively rather than adjacent tube-shape casing, gear drive structure including the cover locate tube-shape casing outer wall or output shaft the gear with set up in rather than adjacent tube-shape casing inner wall, can with gear engagement's ring gear.
Preferably, be equipped with porous baffle in the casing in order to divide into dyeing district and dyestuff mixed area with the casing inner chamber from top to bottom, the yarn dyeing post group sets up in the dyeing district, porous baffle is equipped with and supplies the tip of tube-shape casing inserts and the annular spout of pivoted.
Preferably, the output shaft penetrates through the porous partition plate and extends to the dye mixing area, and a spiral stirring net is connected to the part of the output shaft, which is positioned in the dye mixing area.
Preferably, the dyeing district top is equipped with hollow baffle, the one side that hollow baffle is close to the dyeing district is equipped with the exhaust hole, the hollow baffle inner chamber through the casing side set up the circulation exhaust passage with dyestuff mixed area intercommunication, circulation exhaust passage with the intercommunication department in dyestuff mixed area is equipped with the suction fan.
Preferably, an end of the cylindrical housing is disposed to the annular slide groove through a rotary shaft bearing.
Preferably, the spiral stirring net is connected with the output shaft through an umbrella-shaped gear structure, and the umbrella-shaped gear structure comprises a first umbrella-shaped gear arranged on the output shaft and a second umbrella-shaped gear arranged on a connecting shaft of the spiral stirring net and meshed with the first umbrella-shaped gear.
Preferably, one end of the spiral stirring net, which is not connected with the output shaft, is arranged on the inner wall of the shell through a rotating bearing.
Preferably, the shell is further provided with a dye containing plate, the dye containing plate is provided with a containing groove with a groove opening close to the top of the shell and a vent groove with a groove opening close to the bottom of the shell at intervals, and a partition plate between the containing groove and the vent groove is provided with a plurality of through holes; the carbon dioxide air inlet is arranged at the bottom of the shell.
Preferably, the vent groove is communicated with the carbon dioxide inlet through a gas guide pipe.
The utility model has the advantages that:
1. set up a plurality of tube-shape casing, every tube-shape casing all can twine treats the dyeing fabric, make full use of casing inner space improves dyeing efficiency.
2. The adjacent cylindrical shells rotate in different directions, so that the supercritical carbon dioxide is subjected to turbulent diffusion in the shells, and the dyeing uniformity is improved.
Drawings
FIG. 1 is a schematic structural diagram of a supercritical carbon dioxide anhydrous dyeing device;
in the figure: the device comprises a shell 10, a carbon dioxide inlet 11, an air outlet 12, a porous partition plate 13, a spiral stirring net 14, a hollow partition plate 15, a circulating exhaust channel 16, a suction fan 16a, a dye containing plate 17, a containing groove 17a, an air vent groove 17b, an air guide pipe 18, a yarn dyeing column group 20, a cylindrical shell 21, a gear 21a, a gear ring 21b, a motor 30, an output shaft 31, a first umbrella-shaped gear 31a and a second umbrella-shaped gear 31 b.
Detailed Description
The following are embodiments of the present invention and the accompanying drawings are used to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.
The utility model provides a supercritical carbon dioxide anhydrous dyeing apparatus, as shown in figure 1, including the casing 10 that is equipped with carbon dioxide air inlet 11 and gas outlet 12, set up yarn dyeing column group 20 and the motor 30 of drive yarn dyeing column group 20 pivoted in casing 10, the output shaft 31 of motor 30 sets up in the center pin of casing 10, yarn dyeing column group 20 includes a plurality of cylindrical shell 21 that use output shaft 31 as the center, the radius increases in proper order, certain interval has between the cylindrical shell 21, the outer wall of every cylindrical shell 21 all can twine the fabric of waiting to dye, the conchal wall of cylindrical shell 21 is equipped with a plurality of through-holes.
The cylindrical shell 21 and the output shaft 31, and the cylindrical shell 21 and the adjacent cylindrical shell 21 are respectively connected through a gear transmission structure, and the gear transmission structure comprises a gear 21a sleeved on the outer wall of the cylindrical shell 21 or the output shaft 31 and a gear ring 21b arranged on the inner wall of the adjacent cylindrical shell 21 and capable of being meshed with the gear 21 a.
When the dyeing machine is used, the supercritical carbon dioxide entering from the carbon dioxide inlet 11 dissolves the dye to form dye fluid, and the dye fluid flows between the two cylindrical shells 21 and can be dyed in the process of diffusing and penetrating substances outwards from the through holes of the cylindrical shells 21.
In the dyeing process, a step of dissolving the dye by carbon dioxide in a supercritical state is also provided, so that a porous partition plate 13 is arranged in the shell 10 to divide the inner cavity of the shell 10 into a dyeing area and a dye mixing area from top to bottom, the yarn dyeing column group 20 is arranged in the dyeing area, and the porous partition plate 13 is provided with an annular chute for the end part of the cylindrical shell 21 to be inserted and rotated. The end of the cylindrical housing 21 may be disposed in the annular slide groove through a rotary shaft bearing. And the output shaft 31 penetrates through the porous partition plate 13 and extends to the dye mixing area, and the part of the output shaft 31 positioned in the dye mixing area is connected with the spiral stirring net 14 so as to accelerate the mixing of the supercritical carbon dioxide and the dye and improve the mixing uniformity.
To improve the mixing effect, the helical mixing net 14 may be connected to the output shaft 31 through a bevel gear structure including a first bevel gear 31a provided to the output shaft 31 and a second bevel gear 31b provided to a connecting shaft of the helical mixing net 14 and engaged with the first bevel gear 31 a. Meanwhile, in order to improve the rotational stability of the helical stirring net 14, one end of the helical stirring net 14, which is not connected with the output shaft 31, is arranged on the inner wall of the shell 10 through a rotating bearing.
In addition, the top of the dyeing area is provided with a hollow partition plate 15, one side of the hollow partition plate 15 close to the dyeing area is provided with an exhaust hole, the inner cavity of the hollow partition plate 15 is communicated with the dye mixing area through a circulating exhaust channel 16 arranged on the side surface of the shell 10, and a suction fan 16a is arranged at the communication position of the circulating exhaust channel 16 and the dye mixing area. The dye fluid after the primary dyeing can enter the hollow partition plate from the exhaust hole, enter the dye mixing area through the circulating exhaust channel 16 under the action of the suction fan 16a, are uniformly mixed with the dye and then enter the dyeing area for dyeing through the porous partition plate 13, and the purposes of circulating dyeing, improving dyeing efficiency, saving energy and reducing consumption are achieved.
The shell 10 is also provided with a dye containing plate 17, the dye containing plate 17 is provided with a containing groove 17a with a notch close to the top of the shell 10 and a vent groove 17b with a notch close to the bottom of the shell 10 at intervals, and a partition plate between the containing groove 17a and the vent groove 17b is provided with a plurality of through holes; the carbon dioxide inlet 11 is provided at the bottom of the housing 10. The vent groove 17b communicates with the carbon dioxide inlet 11 through a gas duct 18. Supercritical carbon dioxide enters the shell 10 from the carbon dioxide inlet 11 and is dispersed into each vent groove 17b under the action of the air duct 18, and then is dispersed into each containing groove 17a under the action of the through holes to be mixed with the dye, so that the mixing uniformity of the supercritical carbon dioxide and the dye is improved in a batch and small-amount mixing mode.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (9)
1. The utility model provides a anhydrous dyeing apparatus of supercritical carbon dioxide which characterized in that: comprises a shell (10) provided with a carbon dioxide gas inlet (11) and a gas outlet (12), a yarn dyeing column group (20) arranged in the shell (10) and a motor (30) driving the yarn dyeing column group (20) to rotate, an output shaft (31) of the motor (30) is arranged on a central shaft of the shell (10), the yarn dyeing column group (20) comprises a plurality of cylindrical shells (21) which take the output shaft (31) as the center and have sequentially increased radiuses, the shell wall of the cylindrical shell (21) is provided with a plurality of through holes, the cylindrical shell (21) is connected with the output shaft (31) and the cylindrical shell (21) is connected with the adjacent cylindrical shell (21) through a gear transmission structure respectively, the gear transmission structure comprises a gear (21 a) sleeved on the outer wall of the cylindrical shell (21) or the output shaft (31) and a gear ring (21 b) arranged on the inner wall of the adjacent cylindrical shell (21) and capable of being meshed with the gear (21 a).
2. The apparatus according to claim 1, wherein the apparatus comprises: be equipped with porous baffle (13) in casing (10) in order to divide into dyeing district and dyestuff mixed area with casing (10) inner chamber from top to bottom, dye yarn post group (20) and set up in the dyeing district, porous baffle (13) are equipped with and supply the tip of tube-shape casing (21) inserts and pivoted annular spout.
3. The apparatus according to claim 2, wherein: the output shaft (31) penetrates through the porous partition plate (13) and extends to the dye mixing area, and a spiral stirring net (14) is connected to the part, located in the dye mixing area, of the output shaft (31).
4. The apparatus according to claim 2, wherein: dyeing district top is equipped with hollow baffle (15), the one side that hollow baffle (15) are close to the dyeing district is equipped with the exhaust hole, hollow baffle (15) inner chamber through casing (10) side set up circulate exhaust passage (16) with dyestuff mixed area intercommunication, circulate exhaust passage (16) with the intercommunication department in dyestuff mixed area is equipped with suction fan (16 a).
5. The apparatus according to claim 2, wherein: the end part of the cylindrical shell (21) is arranged on the annular sliding groove through a rotating shaft bearing.
6. The apparatus according to claim 3, wherein: the spiral stirring net (14) is connected with the output shaft (31) through an umbrella-shaped gear structure, and the umbrella-shaped gear structure comprises a first umbrella-shaped gear (31 a) arranged on the output shaft (31) and a second umbrella-shaped gear (31 b) arranged on a connecting shaft of the spiral stirring net (14) and meshed with the first umbrella-shaped gear (31 a).
7. The apparatus according to claim 6, wherein: one end of the spiral stirring net (14), which is not connected with the output shaft (31), is arranged on the inner wall of the shell (10) through a rotating bearing.
8. The apparatus according to claim 1, wherein the apparatus comprises: the shell (10) is further provided with a dye containing plate (17), the dye containing plate (17) is provided with a containing groove (17 a) with a groove opening close to the top of the shell (10) and an air channel (17 b) with a groove opening close to the bottom of the shell (10) at intervals, and a partition plate between the containing groove (17 a) and the air channel (17 b) is provided with a plurality of through holes; the carbon dioxide inlet (11) is arranged at the bottom of the shell (10).
9. The apparatus according to claim 8, wherein: the vent groove (17 b) is communicated with the carbon dioxide inlet (11) through a gas guide pipe (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920435938.4U CN209890899U (en) | 2019-04-02 | 2019-04-02 | Supercritical carbon dioxide anhydrous dyeing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920435938.4U CN209890899U (en) | 2019-04-02 | 2019-04-02 | Supercritical carbon dioxide anhydrous dyeing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209890899U true CN209890899U (en) | 2020-01-03 |
Family
ID=68998632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920435938.4U Active CN209890899U (en) | 2019-04-02 | 2019-04-02 | Supercritical carbon dioxide anhydrous dyeing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209890899U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111793998A (en) * | 2020-06-28 | 2020-10-20 | 宣城凯欧纺织有限公司 | Nano-permeation washing-free process for polyester fabric |
| CN112899951A (en) * | 2021-01-13 | 2021-06-04 | 广东碳染科技有限公司 | Self-force flow equalizing dye kettle for supercritical carbon dioxide fluid dyeing powder-soluble dye |
-
2019
- 2019-04-02 CN CN201920435938.4U patent/CN209890899U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111793998A (en) * | 2020-06-28 | 2020-10-20 | 宣城凯欧纺织有限公司 | Nano-permeation washing-free process for polyester fabric |
| CN111793998B (en) * | 2020-06-28 | 2022-08-23 | 宣城凯欧纺织有限公司 | Nano-permeation washing-free process for polyester fabric |
| CN112899951A (en) * | 2021-01-13 | 2021-06-04 | 广东碳染科技有限公司 | Self-force flow equalizing dye kettle for supercritical carbon dioxide fluid dyeing powder-soluble dye |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209890899U (en) | Supercritical carbon dioxide anhydrous dyeing device | |
| JP2020513485A (en) | Anhydrous cheese dyeing device, dyeing method and product thereof | |
| CN1515735A (en) | One-bath process continuous production process for treating cotton and its blended fabric before dyeing and printing | |
| CN104420123B (en) | Washing machine with flocculation circulating water function | |
| CN101538107A (en) | Method for treating wastewater in textile printing and dyeing industry | |
| CN206508854U (en) | Highly effective foam generator based on foam finishing PROCESS FOR TREATMENT fabric | |
| CN105152425A (en) | Regeneration and cyclic utilization method for linen laundry wastewater | |
| CN206089364U (en) | Divide matter reposition of redundant personnel printing and dyeing wastewater processing system | |
| CN102433770A (en) | Electrochemical quick cleaning dyeing process for vat dye | |
| CN209306984U (en) | Powdered Activated Carbon filter device for advanced treatment of wastewater | |
| CN208265904U (en) | Textile-dyeing wastewater system for advanced treatment and recycle | |
| CN215403552U (en) | Pretreatment system for printing and dyeing desizing wastewater | |
| CN215742937U (en) | Oxygen deficiency pond agitated vessel for sewage treatment | |
| CN105926317A (en) | Energy-saving environment-friendly continuous dyeing process with low water consumption | |
| CN210506810U (en) | Rotary cage type oscillating roller and mechanism thereof | |
| CN209338169U (en) | PVA extraction element containing PVA waste water | |
| CN208883633U (en) | A kind of industrial wastewater decoloration device | |
| CN108821434B (en) | Integrated AAO + MBR reactor and method for treating sewage by using same | |
| CN207169594U (en) | A kind of dye of positive ion production mixer with multiple agitating function | |
| CN222250245U (en) | Uniform aeration structure of integrated sewage treatment equipment | |
| CN207775526U (en) | A kind of reactive dye device | |
| CN206244492U (en) | For the micro bubble generation device of dye wastewater treatment | |
| CN210825838U (en) | AAO rapid biochemical system | |
| CN218436219U (en) | Color mixing dye vat for printing and dyeing | |
| CN221398341U (en) | Dyeing device for silk fabric |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |