CN103961900B - A kind of liquid-liquid extraction processing means - Google Patents
A kind of liquid-liquid extraction processing means Download PDFInfo
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- CN103961900B CN103961900B CN201410183400.0A CN201410183400A CN103961900B CN 103961900 B CN103961900 B CN 103961900B CN 201410183400 A CN201410183400 A CN 201410183400A CN 103961900 B CN103961900 B CN 103961900B
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Abstract
The invention discloses a kind of liquid-liquid extraction processing means, it is characterized in that it includes line-blending extractor, the outlet of extractant storage tank is connected with the import of line-blending extractor, waste pipe also import with described line-blending extractor is connected, the outlet of line-blending extractor is connected with extract and separate tower import, the bottom of extract and separate tower is provided with waste water discharge opening, the overfall of extract and separate top of tower is connected with the import of extractant pans, the outlet of extractant pans is connected with the import of line-blending reextractor, the outlet of line-blending reextractor is connected with the import of back extraction extractant separation and recovery tower, the extraction of back extraction extractant separation and recovery tower bottom goes out liquid row's mouth and liquid accumulator tank be connected with extracting, the overfall of back extraction extractant separation and recovery top of tower is connected with the import of extractant groove；The outlet of back extraction liquid bath also import with above-mentioned line-blending reextractor is connected.The advantages such as the present invention has simple in construction, good mixing effect, and extraction is abundant.
Description
Technical field
The invention belongs to chemical field, relate to a kind of wastewater from chemical industry liquid-liquid extraction processing means.
Background technology
Wastewater from chemical industry processes frequently with extracting process, phenol removal etc. in processing such as high-concentration phenolic wastewater, its extraction equipment is packed extraction tower or trayed extraction columns or turntable extracting tower etc., the principle using the extraction of liquid liquid reverse convection extracts, and such device exists technological process requirement height in various degree, extraction efficiency is low, equipment investment is big, operation is complicated, Maintenance and Repair high in cost of production technical problem.
Summary of the invention
The present invention is directed to the deficiency of above-mentioned technology, it is provided that a kind of simple and practical, low cost, technological process simple liquid-liquid extraction processing means.
For achieving the above object, the technical scheme of employing is the present invention:
nullA kind of liquid-liquid extraction processing means，It is characterized in that it includes line-blending extractor，The outlet of extractant storage tank is connected through the import of extractant pump with described line-blending extractor，Waste pipe is connected through the waste water inlet of influent waste water pump with waste water heating tank，The also import with described line-blending extractor of the wastewater outlet of waste water heating tank is connected，The outlet of described line-blending extractor is connected with extract and separate tower import，The bottom of extract and separate tower is provided with waste water discharge opening，The overfall of extract and separate top of tower is connected with the import of extractant pans，The outlet of extractant pans is connected by the import of extractant line pump with line-blending reextractor，The outlet of line-blending reextractor is connected with the import of back extraction extractant separation and recovery tower，The extraction of back extraction extractant separation and recovery tower bottom goes out liquid row's mouth and liquid accumulator tank be connected with extracting，The overfall of back extraction extractant separation and recovery top of tower is connected with the import of extractant storage tank；The outlet of back extraction liquid bath also import with above-mentioned line-blending reextractor is connected.
Described extract and separate tower import is positioned at the middle part of extract and separate tower.
The import of described back extraction extractant separation and recovery tower is positioned at the middle part of back extraction extractant separation and recovery tower.
The outlet of described back extraction liquid bath is connected by the import of back extraction liquid pump with line-blending reextractor.
Compared with prior art, it provides the benefit that the present invention:
1, the extraction process of the present invention is mainly completed by line-blending extractor, extract the stop that tower the most separated with after back extraction carry out certain time to separate, extract and separate tower is simple with back extraction extractant separation and recovery tower structure, without filler or column plate or tower tray, do not result in the situation that the impacts such as stifled tower are properly functioning, there is simple in construction, good mixing effect, the advantages such as extraction is abundant.
2, apparatus of the present invention investment is greatly reduced, and is greatly shortened flow process, reduces operation easier and maintenance cost.
3, the phase in the biphase liquid in extraction, back extraction only need to be heated by the present invention, can through line-blending extractor realize heat transfer meet extraction with extract and separate needed for technological temperature requirement, not only technique is simple, and heat utilization rate is high, has the advantage that energy consumption is low.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of line-blending extractor in the present invention.
Fig. 3 is one of structural representation of hybrid blade in inventive pipeline hybrid extraction device.
Fig. 4 is in inventive pipeline hybrid extraction device the two of the structural representation of hybrid blade.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings:
As shown in Figure 1, the invention mainly comprises line-blending extractor 1, extract and separate tower 2, extractant pans 3, line-blending reextractor 4, back extraction extractant separation and recovery tower 5, back extraction liquid bath 6, extract accumulator tank 7 and extractant storage tank 8, the outlet of extractant storage tank 8 is connected through the import of extractant pump 11 with line-blending extractor 1, waste pipe is connected through the waste water inlet of influent waste water pump 10 with waste water heating tank 9, and the also import with described line-blending extractor 1 of the wastewater outlet of waste water heating tank 9 is connected.The outlet of line-blending extractor 1 is connected with extract and separate tower 2 import, and extract and separate tower 2 import is positioned at the middle part of extract and separate tower 2.The bottom of extract and separate tower 2 is provided with waste water discharge opening, and the overfall at extract and separate tower 2 top is connected with the import of extractant pans 3, and the outlet of extractant pans 3 is connected by the import of extractant line pump 12 with line-blending reextractor 4.Extractant pans 3 have heating function, can meet the back extraction extraction requirement to technological temperature.The outlet of line-blending reextractor 4 is connected with the import of back extraction extractant separation and recovery tower 5, and the import of back extraction extractant separation and recovery tower 5 is positioned at the middle part of back extraction extractant separation and recovery tower 5.Extraction bottom back extraction extractant separation and recovery tower 5 goes out liquid row's mouth and liquid accumulator tank 7 be connected with extracting, and back extraction extractant separates and recovers the overfall at tower 5 top and is connected with the import of extractant storage tank 8.The outlet of back extraction liquid bath 6 is connected by the import of back extraction liquid pump 13 with line-blending reextractor 4.
Extract and separate tower of the present invention is very simple with back extraction extractant separation and recovery tower internal structure, and waste water only needs stop to separate with extractant in tower.
As in figure 2 it is shown, the structure of inventive pipeline hybrid extraction device 1 is made up of I section-mixing section, II section-preliminary hybrid extraction section and III section-degree of depth hybrid extraction section three part.Described I section-mixing section includes mixing tee 103, being respectively mounted liquid suction flange 101 to be extracted and extract import adpting flange 102 in two imports of this mixing tee 103, its outlet is connected with the lower flange 105 in II section-preliminary hybrid extraction section by mixture export flange 104.Described II section-preliminary hybrid extraction section includes lower flange 105, lower case pipeline section 106 and upper flange 108, lower flange 105 is arranged on the lower end of lower case pipeline section 106, upper flange 108 is arranged on the upper end of lower case pipeline section 106, is provided with hybrid blade 107 in lower case pipeline section 106.As shown in Figure 3, hybrid blade 107 is made up of a pair half elliptic plate, described half elliptic plate is to rotate, around elliptical center, the half elliptic plate that the axial line of 30 °～45 ° is cut off along elliptical flat-plate major axis, minor axis and housing pipeline section 106 central axis, 2 half elliptic plates rotate the hybrid blade 107 that partners in a certain angle around minor axis rightabout simultaneously.2 pairs of hybrid blades 107 are respectively arranged in lower case pipeline section 106 two ends, and the minor axis of the half elliptic plate of 2 pairs of hybrid blades 107 is overlooked and is mutually perpendicular to, and half elliptic plate outer rim is welded with using between pipeline shell inwall or is adhesively fixed.The short axial length of described elliptical flat-plate deducts 2～3mm equal to lower case pipeline section 106 internal diameter, 1.3～1.6 times of a length of short axial length of major axis of elliptical flat-plate, and viscosity gets the small value greatly, and viscosity is little to take large values, if flow is less than 5 tons of employings double-spiral structure (as shown in Figure 4).Described III section-degree of depth hybrid extraction section includes bottom adpting flange 109, upper body pipeline section 111 and top adpting flange 114, and bottom adpting flange 109 is arranged on the lower end of upper body pipeline section 111, is connected with upper flange 108.Top adpting flange 114 is arranged on the upper end of upper body pipeline section 111, and the upper/lower terminal at upper body pipeline section 111 is additionally provided with upper porous plate 113 and lower perforated plate 110, is filled with filler 112 between upper porous plate 113 and lower perforated plate 110.Filler 112 is metal or the Pall ring of non-metallic material or Raschig ring, and filler is filled between upper and lower porous plate, and filler 112 porosity is more than 75%.Upper porous plate 113 welds or is adhered in top adpting flange 114, and lower perforated plate 110 welds or is adhered in upper flange 108.Upper porous plate 113 welds or is adhered to in the top companion flange 115 of top adpting flange 114 pairing, and lower perforated plate 110 welds or is adhered in bottom adpting flange 109.The feature of upper body pipeline section 111 is: ratio of height to diameter is 10～20, and altitude range is more than or equal to 500mm and less than or equal to 4000mm.The characteristic processed according to extraction, extractant to be made fully extracts from liquid to be extracted and needs extract, it is necessary to ensure that the molecule between liquid-liquid diphase is fully contacted and can realize.For realizing fully extraction, breaking through existing extracting treating method and apparatus, inventive pipeline hybrid extraction device 1 uses syllogic line-blending structure, strengthens mixed effect step by step simultaneously.Liquid-liquid diphase enters II section respectively after pump jet squeezes into I section of mixing tee convection current mixing；Mixed liquor produces crossing current, exchange, vortex, the three-dimensional staggered stream of derotation whirlpool phenomenon at shock, the refraction action of II section of blended blade, makes mixed liquor produce violent main diffusion and turbulent diffusion, it is achieved that preliminary hybrid extraction；Mixed liquor enters back into III section by the velocity gradient of liquid stream and carries out more intensive collision with filler, shear, disperse, and makes that liquid-liquid diphase is intermolecular to be fully contacted, and completes extractive distillation process.A knockout drum only need to be entered or knockout tower stops certain time and can complete extraction, it is thus achieved that satisfied effect of extracting through the mixed liquor of line-blending extractor.
The structure of inventive pipeline mixing reextractor 4 is identical with line-blending extractor 1.
The work process of the present invention is as follows:
Waste water sends into waste water heating tank 9 through influent waste water pump 10, waste water after waste water heating tank 9 preheats together enters line-blending extractor 1 with the extractant sent here by extractant pump 11 from extractant storage tank 8 to carry out being sufficiently mixed extraction, in line-blending extractor 1, waste water and extractant clash into through vigorous dispersion and are sufficiently mixed, and realize fully extraction through heat transfer comprehensively, mass transfer simultaneously.The middle part entering extract and separate tower 2 afterwards carries out waste water and separates with extractant.Processing through extraction, the waste water of removing harmful organic substance discharges subsequent technique and processes from the bottom of extract and separate tower 2, and extracting has the extractant of harmful organic substance in waste water to enter extractant pans 3 from the top overflow of extract and separate tower tower 2.The preheated strip liquor afterwards and in back extraction liquid bath 6 of extractant in extractant pans 3 is sent into line-blending reextractor 4 through extractant line pump 12 and back extraction liquid pump 13 respectively and is carried out being sufficiently mixed back extraction, then enter back into back extraction extractant separation and recovery tower 5 to separate, strip liquor enters from the bottom of back extraction extractant separation and recovery tower 5 after inhaling the harmful organic substance in de-extractant and extracts liquid accumulator tank 7, extracts the extraction in liquid accumulator tank 7 and goes out liquid and remake subsequent recovery and process；The tower top overflow separating and recovering tower 5 from back extraction extractant through the extractant of back extraction removing harmful organic substance extracts to extractant storage tank 8, entrance next round.
Other the undeclared part that the present invention relates to is same as the prior art.
Claims (7)
- null1. a liquid-liquid extraction processing means，It is characterized in that it includes line-blending extractor (1)，The outlet of extractant storage tank (8) is connected through the import of extractant pump (11) with described line-blending extractor (1)，Waste pipe is connected through the waste water inlet of influent waste water pump (10) with waste water heating tank (9)，The also import with described line-blending extractor (1) of the wastewater outlet of waste water heating tank (9) is connected，The outlet of described line-blending extractor (1) is connected with extract and separate tower (2) import，The bottom of extract and separate tower (2) is provided with waste water discharge opening，The overfall at extract and separate tower (2) top is connected with the import of extractant pans (3)，The outlet of extractant pans (3) is connected by the import of extractant line pump (12) with line-blending reextractor (4)，The outlet of line-blending reextractor (4) is connected with the import of back extraction extractant separation and recovery tower (5)，The extraction of back extraction extractant separation and recovery tower (5) bottom goes out liquid row's mouth and liquid accumulator tank (7) be connected with extracting，The overfall at back extraction extractant separation and recovery tower (5) top is connected with the import of extractant storage tank (8)；The outlet of back extraction liquid bath (6) also import with above-mentioned line-blending reextractor (4) is connected；Described line-blending extractor (1) structure includes I section-mixing section, II section-preliminary hybrid extraction section and III section-degree of depth hybrid extraction section three part, described I section-mixing section includes mixing tee (103), being respectively mounted liquid suction flange (101) to be extracted and extract import adpting flange (102) in two imports of this mixing tee (103), its outlet is connected with the lower flange (105) in II section-preliminary hybrid extraction section by mixture export flange (104)；Described II section-preliminary hybrid extraction section includes lower flange (105), lower case pipeline section (106) and upper flange (108), lower flange (105) is arranged on the lower end of lower case pipeline section (106), upper flange (108) is arranged on the upper end of lower case pipeline section (106), is provided with hybrid blade (107) in lower case pipeline section (106)；Described III section-degree of depth hybrid extraction section includes bottom adpting flange (109), upper body pipeline section (111) and top adpting flange (114), described bottom adpting flange (109) is arranged on the lower end of upper body pipeline section (111), it is connected with described upper flange (108), described top adpting flange (114) is arranged on the upper end of upper body pipeline section (111), upper at upper body pipeline section (111), lower two ends are additionally provided with upper porous plate (113) and lower perforated plate (110), filler (112) it is filled with between upper porous plate (113) and lower perforated plate (110).
- Liquid-liquid extraction processing means the most according to claim 1, is characterized in that the import of described extract and separate tower (2) is positioned at the middle part of extract and separate tower (2).
- Liquid-liquid extraction processing means the most according to claim 1, is characterized in that the import of described back extraction extractant separation and recovery tower (5) is positioned at the middle part of back extraction extractant separation and recovery tower (5).
- Liquid-liquid extraction processing means the most according to claim 1, is characterized in that the outlet of described back extraction liquid bath (6) is connected by the import of back extraction liquid pump (13) with line-blending reextractor (4).
- Liquid-liquid extraction processing means the most according to claim 1, is characterized in that described filler (112) is metal or the Pall ring of non-metallic material or Raschig ring.
- Liquid-liquid extraction processing means the most according to claim 1, is characterized in that described upper porous plate (113) is welded or is adhered in top adpting flange (114), and lower perforated plate (110) welds or is adhered in upper flange (108).
- Liquid-liquid extraction processing means the most according to claim 1, it is characterized in that the top companion flange (115) that described upper porous plate (113) is welded or is adhered to match with top adpting flange (114) is interior, lower perforated plate (110) welds or is adhered in bottom adpting flange (109).
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| CN201410183400.0A CN103961900B (en) | 2014-05-04 | 2014-05-04 | A kind of liquid-liquid extraction processing means |
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| CN201410183400.0A CN103961900B (en) | 2014-05-04 | 2014-05-04 | A kind of liquid-liquid extraction processing means |
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| CN103961900B true CN103961900B (en) | 2016-08-10 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106693441A (en) * | 2017-03-14 | 2017-05-24 | 南昌安润科技有限公司 | Novel extraction device for extracting nickel sulfate from waste batteries |
| CN108786178A (en) * | 2018-07-18 | 2018-11-13 | 浙江格蕾斯生物科技有限公司 | A kind of extract liquor cyclic utilization system |
| CN110172573A (en) * | 2019-05-08 | 2019-08-27 | 株洲冶炼集团股份有限公司 | A kind of antimony electrolyte extraction removes device systems and the process flow of iron |
| CN111672157A (en) * | 2020-06-28 | 2020-09-18 | 郑州铁路职业技术学院 | Method for realizing rapid extraction of organic compound |
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| CN203833661U (en) * | 2014-05-04 | 2014-09-17 | 江苏金山环保工程集团有限公司 | Liquid-liquid extraction treatment device |
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| EP2451985A2 (en) * | 2009-07-07 | 2012-05-16 | Cytec Technology Corporation | Processes for recovering metals from aqueous solutions |
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2014
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2113823U (en) * | 1991-12-25 | 1992-08-26 | 南京化工学院 | Turbulent rotary liquid extractor |
| CN2141730Y (en) * | 1992-09-19 | 1993-09-08 | 中国林业科学研究院林产化学工业研究所 | Throttle pipe liquid extractor |
| CN101811745A (en) * | 2009-12-28 | 2010-08-25 | 天津吉星聚化工科技有限公司 | Treating device for extracting naphthalene sulfonic acid waste liquor |
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