CN103961900A - Liquid-liquid extraction treatment device - Google Patents
Liquid-liquid extraction treatment device Download PDFInfo
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- CN103961900A CN103961900A CN201410183400.0A CN201410183400A CN103961900A CN 103961900 A CN103961900 A CN 103961900A CN 201410183400 A CN201410183400 A CN 201410183400A CN 103961900 A CN103961900 A CN 103961900A
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Abstract
The invention discloses a liquid-liquid extraction treatment device which is characterized by comprising a pipeline mixing extractor, wherein the outlet of an extractant storage tank is connected with the inlet of the pipeline mixing extractor; a wastewater pipe is connected with the inlet of the pipeline mixing extractor; the outlet of the pipeline mixing extractor is connected with the inlet of an extraction separation tower; a wastewater outlet is formed in the bottom of the extraction separation tower; an overflow hole in the top of the extraction separation tower is connected with the inlet of an extractant intermediate tank; the outlet of the extractant intermediate tank is connected with the inlet of a pipeline mixing back-extractor; the outlet of the pipeline mixing back-extractor is connected with the inlet of a back-extractant separation recovery tower; an extracting liquid outlet in the bottom of the back-extractant separation recovery tower is connected with an extracting liquid recovery tank; an overflow hole in the top of the back-extractant separation recovery tower is connected with the inlet of an extractant tank; the outlet of a back extraction liquid tank is also connected with the inlet of the pipeline mixing back-extractor. The liquid-liquid extraction treatment device has the advantages of simple structure, good mixing effect, completeness for extraction and the like.
Description
Technical field
The invention belongs to chemical field, relate to a kind of wastewater from chemical industry liquid-liquid extraction treating apparatus.
Background technology
Wastewater from chemical industry often adopts extracting process to process, as the phenol removal of high-concentration phenolic wastewater in processing etc., its extraction equipment is packed extraction tower or board-like extraction tower or turntable extracting tower etc., adopt the principle of liquid liquid reverse convection extraction to extract, such device exists that technological process requirement is high, extraction efficiency is low, equipment investment is large in various degree, complicated operation, 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, provide a kind of simple and practical, cost is low, the simple liquid-liquid extraction treating apparatus of technological process.
For achieving the above object, the technical scheme of employing is in the present invention:
A kind of liquid-liquid extraction treating apparatus, it is characterized in that it includes pipeline hybrid extraction device, the outlet of extractant storage tank is connected with the import of described pipeline hybrid extraction device through extractant pump, waste pipe is connected with the waste water import of waste water heating tank through influent waste water pump, the wastewater outlet of waste water heating tank is also connected with the import of described pipeline hybrid extraction device, the outlet of described pipeline hybrid extraction device is connected with the import of extract and separate tower, 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 pipeline mixing reextractor by extractant line pump, the outlet of pipeline mixing reextractor is connected with the import of the separated recovery tower of back extraction extractant, the extraction fluid row of the separated recovery tower of back extraction extractant bottom mouthful is connected with extraction fluid accumulator tank, the overfall at the separated recovery tower of back extraction extractant top is connected with the import of extractant groove, the outlet of back extraction liquid bath is also connected with the import of above-mentioned pipeline mixing reextractor.
The import of described extract and separate tower is positioned at the middle part of extract and separate tower.
The import of the separated recovery tower of described back extraction extractant is positioned at the middle part of the separated recovery tower of back extraction extractant.
The outlet of described back extraction liquid bath is connected with the import of pipeline mixing reextractor by back extraction liquid pump.
Compared with prior art, its beneficial effect is in the present invention:
1, extraction process of the present invention is mainly completed by pipeline hybrid extraction device, extraction is with all to carry out the stop of certain hour through knockout tower again after back extraction separated, extract and separate tower is simple in structure with the separated recovery tower of back extraction extractant, without filler or column plate or tower tray, can not cause the situation of the normal operations of impact such as stifled tower, there is simple in structure, good mixing effect, extract the advantages such as abundant.
2, apparatus of the present invention investment significantly reduces, and greatly shortens flow process, has reduced operation easier and maintenance cost.
3, the present invention only need heat mutually to one in the two-phase liquid in extraction, reextraction, can realize conducting heat through pipeline hybrid extraction device and meet extraction and the required technological temperature requirement of extract and separate, not only technique is simple, and heat utilization rate is high, has advantages of that energy consumption is low.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of pipeline hybrid extraction device in the present invention.
Fig. 3 is one of structural representation of hybrid blade in pipeline hybrid extraction device of the present invention.
Fig. 4 be hybrid blade in pipeline hybrid extraction device of the present invention structural representation two.
The specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Figure 1, the present invention mainly include pipeline hybrid extraction device 1, extract and separate tower 2,, extractant pans 3, pipeline mixing reextractor 4, the separated recovery tower 5 of back extraction extractant, back extraction liquid bath 6, extract accumulator tank 7 and extractant storage tank 8, the outlet of extractant storage tank 8 is connected with the import of pipeline hybrid extraction device 1 through extractant pump 11, waste pipe is connected with the waste water import of waste water heating tank 9 through influent waste water pump 10, and the wastewater outlet of waste water heating tank 9 is also connected with the import of described pipeline hybrid extraction device 1.The outlet of pipeline hybrid extraction device 1 is connected with 2 imports of extract and separate tower, and 2 imports of extract and separate tower are 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 tops is connected with the import of extractant pans 3, and the outlet of extractant pans 3 is connected with the import of pipeline mixing reextractor 4 by extractant line pump 12.Extractant pans 3 have heating function, can meet the requirement of back extraction extraction to technological temperature.The outlet of pipeline mixing reextractor 4 is connected with the import of the separated recovery tower 5 of back extraction extractant, and the import of the separated recovery tower 5 of back extraction extractant is positioned at the middle part of the separated recovery tower 5 of back extraction extractant.The extraction fluid row of the separated recovery tower of back extraction extractant 5 bottoms mouthful is connected with extraction fluid accumulator tank 7, and the overfall at the separated recovery tower of back extraction extractant 5 tops is connected with the import of extractant groove 8.The outlet of back extraction liquid bath 6 is connected with the import of pipeline mixing reextractor 4 by back extraction liquid pump 13.
Extract and separate tower of the present invention recovery tower internal structure separated with back extraction extractant is very simple, and waste water only needs to stop separated in tower with extractant.
As shown in Figure 2, the structure of pipeline hybrid extraction device 1 of the present invention is comprised of I section-mixing section, II section-preliminary hybrid extraction section and III section-degree of depth hybrid extraction section three parts.Described I section-mixing section includes mixing tee 103, in two imports of this mixing tee 103, install and treat extract suction flange 101 and extract import adpting flange 102 respectively, 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 comprises 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 consists of a pair of 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 axis is vertical with housing pipeline section 106 center lines, and 2 half elliptic plates are simultaneously around the minor axis axis rightabout rotation hybrid blade 107 that partners in a certain angle.2 pairs of hybrid blades 107 are installed on respectively lower case pipeline section 106 two ends, and the minor axis axis of the half elliptic plate of 2 pairs of hybrid blades 107 overlooks mutually vertically, between half elliptic plate outer rim and pipeline shell inwall, adopt and weld or be adhesively fixed.The minor axis length of described elliptical flat-plate equals lower case pipeline section 106 internal diameters and deducts 2～3mm, and the major axis of elliptical flat-plate is long is long 1.3～1.6 times of minor axis, and viscosity gets the small value greatly, and viscosity is little gets large value, as flow is less than 5 tons of employing double-spiral structures (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, at the upper/lower terminal of upper body pipeline section 111, is also provided with upper porous plate 113 and bottom porous plate 110, between upper porous plate 113 and bottom porous plate 110, is filled with filler 112.Filler 112 is Pall ring or the Raschig ring of metal or non-metallic material, and filler is filled between upper and lower porous plate, and filler 112 porositys are more than 75%.Upper porous plate 113 welds or is adhered in top adpting flange 114, and bottom porous plate 110 welds or is adhered in upper flange 108.Upper porous plate 113 welds or is adhered in the top companion flange 115 matching with top adpting flange 114, and bottom porous 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 for being more than or equal to 500mm and being less than or equal to 4000mm.The characteristic of processing according to extraction, make extractant fully from treat extract extracting need extract, must guarantee that the molecule between liquid-liquid diphase fully contacts and can realize.For realizing abundant extraction, break through existing extracting treating method and apparatus simultaneously, pipeline hybrid extraction device 1 of the present invention adopts syllogic pipeline mixed structure, strengthens step by step mixed effect.Liquid-liquid diphase is squeezed into after the convection current of I section mixing tee mixes and is entered II section through pump jet respectively; Mixed liquor through the shock of hybrid blade, the three-dimensional staggered stream that refraction action produces crossing current, interchange, vortex, derotation whirlpool phenomenon, makes mixed liquor produce violent main diffusion and turbulent diffusion in II section, has realized preliminary hybrid extraction; The velocity gradient that mixed liquor flows by liquid enters III section again and filler carries out stronger collision, shearing, dispersion, makes the intermolecular abundant contact of liquid-liquid diphase, completes extractive distillation process.Through the mixed liquor of pipeline hybrid extraction device, only need enter a knockout drum or knockout tower and stop certain hour and can complete extraction, obtain satisfied effect of extracting.
The structure of pipeline mixing reextractor 4 of the present invention is identical with pipeline hybrid extraction device 1.
The course of work of the present invention is as follows:
Waste water is sent into waste water heating tank 9 through influent waste water pump 10, waste water after 9 preheatings of waste water heating tank together enters pipeline hybrid extraction device 1 with the extractant of being sent here by extractant pump 11 from extractant storage tank 8 and carries out abundant hybrid extraction, at pipeline hybrid extraction device 1 interior waste water, clash into and fully mixed through violent dispersion with extractant, through heat transfer comprehensively, mass transfer, realize fully extraction simultaneously.The separated of waste water and extractant carried out at the middle part that enters afterwards extract and separate tower 2.Through extraction, process, the waste water that removes harmful organic substance discharges subsequent technique processing 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.Extractant in extractant pans 3 is sent into pipeline mixing reextractor 4 through extractant line pump 12 and back extraction liquid pump 13 respectively with the strip liquor in back extraction liquid bath 6 and is fully mixed back extraction after preheating, and then enter the separated recovery tower 5 of back extraction extractant and carry out separation, strip liquor enters extraction fluid accumulator tank 7 from the bottom of the separated recovery tower 5 of back extraction extractant after inhaling the harmful organic substance in de-extractant, and the extraction fluid in extraction fluid accumulator tank 7 remakes subsequent recovery and processes; Through back extraction, remove the extractant of harmful organic substance from the tower top overflow of the separated recovery tower 5 of back extraction extractant to extractant groove 8, enter next round extraction.
Other the undeclared part the present invention relates to is same as the prior art.
Claims (8)
1. a liquid-liquid extraction treating apparatus, it is characterized in that it includes pipeline hybrid extraction device (1), the outlet of extractant storage tank (8) is connected with the import of described pipeline hybrid extraction device (1) through extractant pump (11), waste pipe is connected with the waste water import of waste water heating tank (9) through influent waste water pump (10), the wastewater outlet of waste water heating tank (9) is also connected with the import of described pipeline hybrid extraction device (1), the outlet of described pipeline hybrid extraction device (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 with the import of pipeline mixing reextractor (4) by extractant line pump (12), the outlet of pipeline mixing reextractor (4) is connected with the import of the separated recovery tower of back extraction extractant (5), the extraction fluid row of the separated recovery tower of back extraction extractant (5) bottom mouthful is connected with extraction fluid accumulator tank (7), the overfall at the separated recovery tower (5) of back extraction extractant top is connected with the import of extractant groove (8), the outlet of back extraction liquid bath (6) is also connected with the import of above-mentioned pipeline mixing reextractor (4).
2. liquid-liquid extraction treating apparatus according to claim 1, is characterized in that described extract and separate tower (2) import is positioned at the middle part of extract and separate tower (2).
3. liquid-liquid extraction treating apparatus according to claim 1, is characterized in that the import of the separated recovery tower of described back extraction extractant (5) is positioned at the middle part of the separated recovery tower of back extraction extractant (5).
4. liquid-liquid extraction treating apparatus according to claim 1, is characterized in that the outlet of described back extraction liquid bath (6) is connected with the import of pipeline mixing reextractor (4) by back extraction liquid pump (13).
5. liquid-liquid extraction treating apparatus according to claim 1, it is characterized in that described pipeline hybrid extraction device (1) structure comprises that I section-mixing section, II section-preliminary hybrid extraction section and III section-degree of depth hybrid extraction section three parts form, described I section-mixing section includes mixing tee (103), in two imports of this mixing tee (103), install and treat extract suction flange (101) and extract import adpting flange (102) respectively, 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 comprises 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), be 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 also provided with upper porous plate (113) and bottom porous plate (110), between upper porous plate (113) and bottom porous plate (110), be filled with filler (112).
6. liquid-liquid extraction treating apparatus according to claim 5, is characterized in that described filler (112) is for Pall ring or the Raschig ring of metal or non-metallic material.
7. liquid-liquid extraction treating apparatus according to claim 5, is characterized in that described upper porous plate (113) welds or is adhered in top adpting flange (114), and bottom porous plate (110) welds or is adhered in upper flange (108).
8. liquid-liquid extraction treating apparatus according to claim 5, it is characterized in that described upper porous plate (113) welds or is adhered in the top companion flange (115) matching with top adpting flange (114), bottom porous 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 CN103961900B (en) | 2016-08-10 |
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Cited By (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 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| US20110005354A1 (en) * | 2009-07-07 | 2011-01-13 | Cytec Technology Corp. | Processes for recovering metals from aqueous solutions |
| CN102515391A (en) * | 2011-12-15 | 2012-06-27 | 中蓝连海设计研究院 | Method for pre-treating wastewater from ultraviolet absorber production |
| CN202785726U (en) * | 2012-07-30 | 2013-03-13 | 中冶焦耐工程技术有限公司 | Spray extraction type tar-removing apparatus |
| 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 |
-
2014
- 2014-05-04 CN CN201410183400.0A patent/CN103961900B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| US20110005354A1 (en) * | 2009-07-07 | 2011-01-13 | Cytec Technology Corp. | Processes for recovering metals from aqueous solutions |
| 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 |
| CN102515391A (en) * | 2011-12-15 | 2012-06-27 | 中蓝连海设计研究院 | Method for pre-treating wastewater from ultraviolet absorber production |
| CN202785726U (en) * | 2012-07-30 | 2013-03-13 | 中冶焦耐工程技术有限公司 | Spray extraction type tar-removing apparatus |
| 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 |
Cited By (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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| CN103961900B (en) | 2016-08-10 |
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