CN212450946U - Structure for recovering indigo from printing and dyeing wastewater containing indigo - Google Patents
Structure for recovering indigo from printing and dyeing wastewater containing indigo Download PDFInfo
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- CN212450946U CN212450946U CN202020679741.8U CN202020679741U CN212450946U CN 212450946 U CN212450946 U CN 212450946U CN 202020679741 U CN202020679741 U CN 202020679741U CN 212450946 U CN212450946 U CN 212450946U
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- Prior art keywords
- indigo
- tank
- membrane
- printing
- pipeline
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- COHYTHOBJLSHDF-UHFFFAOYSA-N indigo powder Natural products N1C2=CC=CC=C2C(=O)C1=C1C(=O)C2=CC=CC=C2N1 COHYTHOBJLSHDF-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 235000000177 Indigofera tinctoria Nutrition 0.000 title claims abstract description 46
- 229940097275 indigo Drugs 0.000 title claims abstract description 46
- 238000004043 dyeing Methods 0.000 title claims abstract description 18
- 238000007639 printing Methods 0.000 title claims abstract description 18
- 239000002351 wastewater Substances 0.000 title claims abstract description 18
- 239000012528 membrane Substances 0.000 claims abstract description 45
- 239000012535 impurity Substances 0.000 claims abstract description 17
- 230000003647 oxidation Effects 0.000 claims abstract description 15
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 15
- 238000005273 aeration Methods 0.000 claims abstract description 10
- 238000001914 filtration Methods 0.000 claims abstract description 8
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 230000001105 regulatory effect Effects 0.000 claims description 12
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 230000033228 biological regulation Effects 0.000 description 7
- 239000010865 sewage Substances 0.000 description 4
- 230000018044 dehydration Effects 0.000 description 3
- 238000006297 dehydration reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- COHYTHOBJLSHDF-BUHFOSPRSA-N indigo dye Chemical compound N\1C2=CC=CC=C2C(=O)C/1=C1/C(=O)C2=CC=CC=C2N1 COHYTHOBJLSHDF-BUHFOSPRSA-N 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 238000009295 crossflow filtration Methods 0.000 description 1
- 238000009967 direct dyeing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a structure for recovering indigo from printing and dyeing wastewater containing indigo, which comprises an adjusting and concentrating tank, wherein one end of the adjusting and concentrating tank is connected with a dehydrator through a pipeline, one end of the dehydrator is connected with a treatment tank through a pipeline, one end of the treatment tank is connected with the adjusting and concentrating tank through a first backflow pipe, the other end of the adjusting and concentrating tank is communicated with a membrane filter through a pipeline, a tubular filtering membrane is arranged at the middle part in the membrane filter, the upper part of the membrane filter is communicated with the adjusting and concentrating tank through a second backflow pipe, the lower part of the membrane filter is communicated with an oxidation tank through a pipeline, a microporous aeration device is arranged in the oxidation tank, one end of the oxidation tank is communicated with the membrane concentrating tank through a pipeline, a membrane concentrating device is arranged in the membrane concentrating tank, an impurity pretreatment mechanism is arranged at the upper side of the adjusting and concentrating tank, the utility model, meanwhile, the sundries removing effect is good, and the production cost of enterprises can be reduced.
Description
Technical Field
The utility model relates to a printing and dyeing wastewater treatment technical field especially relates to a retrieve structure of indigo from the printing and dyeing wastewater that contains indigo.
Background
Indigo is an important dye in the printing and dyeing industry, and is widely applied to the production of cotton cloth, jean and other products. However, the direct dyeing property of the indigo dye is not high, and even if the process is continuously improved, about 10 to 20 percent of the indigo dye cannot be dyed and is discharged along with production wastewater.
The existing indigo recovery process research comprises a precipitation method, an evaporation method, an electrolysis method, a membrane separation method and the like, but the recovery efficiency is not high, the recovery purity is not high, the popularization and the application are difficult, and meanwhile, the impurities of the printing and dyeing wastewater cannot be cleaned before the treatment, so that the subsequent cleaning difficulty and the indigo recovery efficiency are increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving among the prior art indigo recovery technology research including precipitation method, evaporation method, electrolysis method, membrane separation method etc. but often recovery efficiency is not high, and it is not high to retrieve purity, hardly popularizes and applies, and printing and dyeing waste water is before handling simultaneously, can't clear up its debris, increases follow-up clearance degree of difficulty and indigo recovery efficiency's problem, and the structure of retrieving indigo in the printing and dyeing waste water that contains indigo that proposes.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a retrieve structure of indigo from printing and dyeing wastewater that contains indigo, includes the concentrated pond of regulation, concentrated pond one end of regulation is connected with the hydroextractor through the pipeline, hydroextractor one end is connected with the processing pond through the pipeline, processing pond one end is connected with the concentrated pond of regulation through first back flow, the concentrated pond other end of regulation is linked together with membrane filter through the pipeline, the middle part sets up tubular filtration membrane in the membrane filter, membrane filter upper portion is linked together with the concentrated pond of regulation through the second back flow, the membrane filter lower part is linked together with the oxidation pond through the pipeline, set up micropore aeration equipment in the oxidation pond, oxidation pond one end is linked together with the concentrated pond of membrane through the pipeline, set up membrane enrichment facility in the concentrated pond of membrane, it sets up impurity pretreatment mechanism to adjust the concentrated pond upside.
Preferably, the adjusting concentration tank is of a conical structure with a wide upper part and a narrow lower part.
Preferably, the treatment tank is internally provided with mechanical filtering equipment, and the mechanical filtering equipment is connected with an external power supply through an electric wire.
Preferably, the micropore aeration device is connected with a high pressure fan through a gas pipe, and the high pressure fan is electrically connected with an external power supply through a connecting wire.
Preferably, impurity pretreatment mechanism includes the carrier, the carrier is installed on regulation concentration tank upper portion, one side is rotated in the carrier and is connected first screw rod, the first adjusting nut of first screw rod upper portion installation, first adjusting nut one end sets up first support, first support lower extreme is connected with the frame, the frame sets up in regulation concentration tank, the installation filter screen in the frame, first screw rod upper end is connected with driving motor's output shaft through the reduction gear, driving motor installs on the carrier side, and driving motor passes through connecting wire and external power supply electric connection.
Preferably, a first belt wheel is arranged at the upper end of the first screw rod, the first belt wheel is connected with a second belt wheel through a synchronous belt, the second belt wheel is installed on the second screw rod, the second screw rod is rotatably connected to the other side in the carrier frame, a second adjusting nut is installed on the second screw rod, a second support is arranged at one end of the second adjusting nut, and one end of the second support is connected with the outer frame.
Preferably, first through-hole and second through-hole are seted up respectively to the filter screen both sides, the axis of first through-hole coincides with the axis of first back flow pipe, the axis of second through-hole coincides with the axis of second back flow pipe, the diameter size of first through-hole is greater than the external diameter size of first back flow pipe, the diameter size of second through-hole is greater than the external diameter size of second back flow pipe.
The utility model has the advantages that:
1, through hydroextractor, processing pond, membrane filter, first back flow pipe, second back flow pipe, oxidation pond, membrane concentration pond and membrane enrichment facility, can deal with the indigo leuco body of insoluble indigo granule and solubility in former sewage respectively, obtain high-purity recovery indigo, the sewage treatment degree of difficulty after retrieving the indigo descends by a wide margin, has reduced environmental protection water treatment cost.
2, through the setting of filter screen, first screw rod, second screw rod, first band pulley and second band pulley, can drive first screw rod and second screw rod simultaneously and rotate through the rotation of first band pulley and second band pulley, and then drive the filter screen and go up and down, can filter the impurity in the former aquatic through the filter screen, the operating personnel of being convenient for simultaneously clear up impurity.
The utility model discloses can effectively improve indigo's recovery efficiency, debris are got rid of the effect simultaneously good, can reduce the manufacturing cost of enterprise.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the impurity pretreatment mechanism of the present invention.
Reference numbers in the figures: 1. adjusting a concentration tank; 2. a dehydrator; 3. a treatment tank; 4. a mechanical filtration device; 5. An impurity pretreatment mechanism; 6. a second return pipe; 7. a membrane filter; 8. a microporous aeration device; 9. a membrane concentration tank; 10. a membrane concentration device; 11. an oxidation pond; 12. a tubular filtration membrane; 501. a carrier; 502. a drive motor; 503. a first pulley; 504. a first screw; 505. a first adjusting nut; 506. a first bracket; 507. an outer frame; 508. a filter screen; 509. a second bracket; 510. a second adjusting nut; 511. A second screw; 512. a second pulley.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-2, a structure for recovering indigo from printing and dyeing wastewater containing indigo, comprising an adjusting and concentrating tank 1, wherein one end of the adjusting and concentrating tank 1 is connected with a dehydrator 2 through a pipeline, one end of the dehydrator 2 is connected with a processing tank 3 through a pipeline, one end of the processing tank 3 is connected with the adjusting and concentrating tank 1 through a first return pipe, the other end of the adjusting and concentrating tank 1 is communicated with a membrane filter 7 through a pipeline, a tubular filtering membrane 12 is arranged at the middle part in the membrane filter 7, the upper part of the membrane filter 7 is communicated with the adjusting and concentrating tank 1 through a second return pipe 6, the lower part of the membrane filter 7 is communicated with an oxidation tank 11 through a pipeline, a microporous aeration device 8 is arranged in the oxidation tank 11, one end of the oxidation tank 11 is communicated with a membrane concentrating tank 9 through a pipeline, a membrane concentrating device 10 is arranged in the membrane, set up mechanical filter equipment 4 in the treatment tank 3, mechanical filter equipment 4 is connected with external power supply through the electric wire, and micropore aeration device 8 is connected with high pressure positive blower through the gas-supply pipe, and high pressure positive blower passes through connecting wire and external power supply electric connection, can deal with the indigo leuco body of the insoluble indigo granule and the dissolubility in former sewage respectively, obtains the high-purity recovery indigo, and the sewage treatment degree of difficulty after retrieving the indigo descends by a wide margin, has reduced environmental protection water treatment cost.
In order to collect the flocculated sediment intensively, in this embodiment, it is preferable that the concentration regulating tank 1 has a tapered structure with a wide top and a narrow bottom.
In order to drive the first screw rod 504 and the second screw rod 511 to rotate simultaneously through the rotation of the first belt wheel 503 and the second belt wheel 512, and further drive the filter screen 508 to go up and down, and the impurities in the raw water can be filtered through the filter screen 508, and at the same time, the impurities can be cleaned conveniently by the operator, in this embodiment, preferably, the impurity preprocessing mechanism 5 includes a carrier 501, the carrier 501 is installed at the upper part of the adjusting and concentrating tank 1, one side inside the carrier 501 is rotatably connected with the first screw rod 504, the first adjusting nut 505 is installed at the upper part of the first screw rod 504, one end of the first adjusting nut 505 is welded with the first bracket 506, the lower end of the first bracket 506 is welded with the outer frame 507, the outer frame 507 is arranged inside the adjusting and concentrating tank 1, the filter screen 508 is installed inside the outer frame 507, the upper end of the first screw rod 504 is connected with the output shaft, and driving motor 502 passes through connecting wire and external power supply electric connection, first band pulley 503 is cup jointed to first screw 504 upper end, first band pulley 503 is connected with second band pulley 512 through the hold-in range, second band pulley 512 installs on second screw 511, second screw 511 rotates and connects the opposite side in carrier 501, install second adjusting nut 510 on the second screw 511, second adjusting nut 510 one end welding second support 509, second support 509 one end and frame 507 welded connection.
In order to facilitate the first backflow pipe and the second backflow pipe 6 to pass through the filter screen 508, in this embodiment, preferably, a first through hole and a second through hole are respectively formed on two sides of the filter screen 508, a central axis of the first through hole coincides with a central axis of the first backflow pipe, a central axis of the second through hole coincides with a central axis of the second backflow pipe 6, a diameter size of the first through hole is larger than an outer diameter size of the first backflow pipe, and a diameter size of the second through hole is larger than an outer diameter size of the second backflow pipe 6.
The working principle is as follows: firstly, raw water is conveyed into a regulating concentration tank 1, when the raw water passes through a filter screen 508, the filter screen 508 filters impurities in the raw water, the filtered impurities are adhered to the filter screen 508, then, a circuit of a driving motor 502 is connected, the driving motor 502 drives a first screw rod 504 to rotate, the first screw rod 504 drives a first belt pulley 503 to rotate, the first belt pulley 503 drives a second belt pulley 512 to rotate through a synchronous belt, the second belt pulley 512 drives a second screw rod 511 to rotate, at this time, the first screw rod 504 and the second screw rod 511 rotate simultaneously, then the first adjusting nut 505 and the second adjusting nut 510 are lifted up by the first bracket 506 and the second bracket 509 respectively, the first bracket 506 and the second bracket 509 drive the filter screen 508 to lift up by the outer frame 507, so that the filter screen is moved out of the adjusting concentration tank 1, then, impurities on the filter screen 508 are cleaned, and when raw water is subjected to cross flow filtration by a tubular membrane filter membrane with the pore size of 0.03 micron. When the content of suspended solids in the concentration tank 1 is adjusted to reach 20g/L, PAC and PAM are added for coagulating sedimentation. The water content of the mud cake after filter pressing and dehydration is about 80 percent. Adding concentrated sulfuric acid to be fully mixed with the mud cake, stirring for 30 minutes, then performing filter pressing and dehydration again, and using the concentrated sulfuric acid into a concentration regulating tank after dehydration. And (3) carrying out micropore aeration in the oxidation pond 11 through a micropore aeration device 8, wherein the hydraulic retention time is 2 hours, and then the mixed solution enters a membrane concentration pond 9. And when the solid content of the indigo in the membrane concentration tank 9 reaches 20g/L, washing with pure water for 30 minutes to finally obtain indigo slurry. Through determination, the recovery rate of the indigo in the wastewater is 98%, other solid impurities are not contained in the recycled indigo slurry, and only a small amount of soluble substances such as sulfate and the like which are needed in the original production process are contained, so that the production is not influenced.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. A structure for recovering indigo from printing and dyeing wastewater containing indigo comprises a regulating and concentrating tank (1) and is characterized in that one end of the regulating and concentrating tank (1) is connected with a dehydrator (2) through a pipeline, one end of the dehydrator (2) is connected with a treatment tank (3) through a pipeline, one end of the treatment tank (3) is connected with the regulating and concentrating tank (1) through a first return pipe, the other end of the regulating and concentrating tank (1) is communicated with a membrane filter (7) through a pipeline, a tubular filtering membrane (12) is arranged in the middle of the membrane filter (7), the upper part of the membrane filter (7) is communicated with the regulating and concentrating tank (1) through a second return pipe (6), the lower part of the membrane filter (7) is communicated with an oxidation tank (11) through a pipeline, a microporous aeration device (8) is arranged in the oxidation tank (11), one end of the oxidation tank (11) is communicated with a membrane concentrating tank (9) through a pipeline, set up membrane enrichment facility (10) in membrane concentration pond (9), adjust concentration pond (1) upside and set up impurity pretreatment mechanism (5).
2. The structure for recovering indigo from printing and dyeing wastewater containing indigo according to claim 1, characterized in that the adjusting concentration tank (1) has a tapered structure with a wide top and a narrow bottom.
3. The structure for recovering indigo from printing and dyeing wastewater containing indigo according to claim 1, characterized in that a mechanical filter device (4) is arranged in the treatment tank (3), and the mechanical filter device (4) is connected with an external power supply through an electric wire.
4. The structure for recovering indigo from printing and dyeing wastewater containing indigo according to claim 1, characterized in that the micropore aeration device (8) is connected with a high pressure fan through a gas pipe, and the high pressure fan is electrically connected with an external power supply through a connecting wire.
5. The structure for recovering indigo from printing and dyeing wastewater containing indigo according to claim 1, wherein the impurity pretreating mechanism (5) comprises a carriage (501), the carriage (501) is installed at the upper part of the regulating and concentrating tank (1), a first screw (504) is rotatably connected to one side in the carriage (501), a first regulating nut (505) is installed at the upper part of the first screw (504), a first bracket (506) is arranged at one end of the first regulating nut (505), the lower end of the first bracket (506) is connected with an outer frame (507), the outer frame (507) is arranged in the regulating and concentrating tank (1), a filter screen (508) is installed in the outer frame (507), the upper end of the first screw (504) is connected with the output shaft of a driving motor (502) through a speed reducer, and the driving motor (502) is installed on the upper side of the carriage (501), and the driving motor (502) is electrically connected with the external power supply through a connecting wire.
6. The structure for recovering indigo from printing and dyeing wastewater containing indigo according to claim 5, characterized in that a first pulley (503) is arranged at the upper end of the first screw (504), the first pulley (503) is connected with a second pulley (512) through a synchronous belt, the second pulley (512) is installed on a second screw (511), the second screw (511) is rotatably connected to the other side in the carrier (501), a second adjusting nut (510) is installed on the second screw (511), a second bracket (509) is arranged at one end of the second adjusting nut (510), and one end of the second bracket (509) is connected with an outer frame (507).
7. The structure for recovering indigo from printing and dyeing wastewater containing indigo according to claim 5, characterized in that the filter screen (508) is provided with a first through hole and a second through hole on both sides, respectively, the central axis of the first through hole coincides with the central axis of the first return pipe, the central axis of the second through hole coincides with the central axis of the second return pipe (6), the diameter of the first through hole is larger than the outer diameter of the first return pipe, and the diameter of the second through hole is larger than the outer diameter of the second return pipe (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020679741.8U CN212450946U (en) | 2020-04-28 | 2020-04-28 | Structure for recovering indigo from printing and dyeing wastewater containing indigo |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020679741.8U CN212450946U (en) | 2020-04-28 | 2020-04-28 | Structure for recovering indigo from printing and dyeing wastewater containing indigo |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212450946U true CN212450946U (en) | 2021-02-02 |
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ID=74469399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020679741.8U Expired - Fee Related CN212450946U (en) | 2020-04-28 | 2020-04-28 | Structure for recovering indigo from printing and dyeing wastewater containing indigo |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212450946U (en) |
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2020
- 2020-04-28 CN CN202020679741.8U patent/CN212450946U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220119 Address after: 213000 No. 76, Yulan Road, Zhonglou District, Changzhou City, Jiangsu Province Patentee after: CHANGZHOU JUYUE ENVIRONMENTAL PROTECTION Co.,Ltd. Address before: Room 602, gate 1, building 17, Fumin lubinhe home, Hedong District, Tianjin Patentee before: Xing Jie Patentee before: Shen Juyue |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210202 |