CN202625969U - High-salinity organic wastewater treatment device - Google Patents
High-salinity organic wastewater treatment device Download PDFInfo
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- CN202625969U CN202625969U CN 201220161554 CN201220161554U CN202625969U CN 202625969 U CN202625969 U CN 202625969U CN 201220161554 CN201220161554 CN 201220161554 CN 201220161554 U CN201220161554 U CN 201220161554U CN 202625969 U CN202625969 U CN 202625969U
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Abstract
The utility model relates to a high-salinity organic wastewater treatment device. The high-salinity organic wastewater treatment device comprises a wastewater evaporating system and a vapor-liquid recycling system, wherein the wastewater evaporating system comprises a raw material tank, a pre-heating device, a primary evaporator, a secondary evaporator and a forced-circulation evaporator, and the raw material tank, the pre-heating device, the primary evaporator, the secondary evaporator and the forced-circulation evaporator are sequentially connected through water exhausting pipelines. The vapor-liquid recycling system comprises a first vapor-liquid separator, a second vapor-liquid separator, a third vapor-liquid separator, a first condensate flash evaporation tank, a second condensate flash evaporation tank and a compressor. According to the high-salinity organic wastewater treatment device, a mechanical vapor recompression (MVR) system is utilized, economic benefits are significantly improved, and the high-salinity organic wastewater treatment device can be used to help an enterprise to achieve energy-saving and emission-reducing goals.
Description
Technical field
The utility model relates to energy-efficient technical field of waste water processing, especially a kind of treatment unit of highly salt containing organic waste water.
Background technology
Highly salt containing organic waste water is the difficult problem in the wastewater treatment always, in industries such as oil, chemical industry, food, liquid waste disposal, midbody, extensively exists.Common oxygen consumption anaerobic biological is handled the restriction (general saltiness need be lower than 1%) owing to the bacterium salt tolerance and can't be used, and mainly takes multiple-effect evaporation to handle at present.
The processing cost of multiple-effect evaporation is very high, and organism is difficult to reclaim.A lot of organism at high temperature are prone to take place polymerization, produce foam, cause evaporation normally not carry out.Evaporating concentration process need consume a large amount of living steam always, also needs a large amount of water coolants that secondary steam is cooled off.A large amount of latent heat of low-grade like this secondary steam have been wasted, and have also increased the expense of water coolant.For quadruple effect vaporizer; One ton of water of evaporation approximately need consume 0.35 ton steam in the actual production, and the about 15KW of power consumption is if the steam output of device is 15t/h; The market price of steam is 230 yuan/ton at present; Electricity price for industrial uses be 0.75 yuan/(KW.h), then calculated by 300 7200 hours working dayss in 1 year, the working cost of steam is about 9,910,000/year.Conventional vaporizer is to make thermal source with the bright steam of boiler for producing; Being heated to the heating of boiling point continued to solution through interchanger makes the solution explosive evaporatoin produce secondary steam; Moisture content in the solution becomes water vapor and from solution, evaporates and separate, and solution itself is concentrated.The secondary steam that evaporative process produces becomes water of condensation with condensed again, and the thermal energy transfer in the secondary steam is diffused in the water coolant again and causes thermal waste and cooling-water consumption in the air.
The utility model content
The technical problem that the utility model will solve is: a processing difficult problem that overcomes highly salt containing organic waste water in the prior art; A kind of treatment unit of highly salt containing organic waste water is provided; Can effectively improve the processing efficiency of highly salt containing organic waste water, cut down the consumption of energy, reduce processing cost.
The utility model solves the technical scheme that its technical problem adopted: a kind of treatment unit of highly salt containing organic waste water; Comprise that waste water vapo(u)rization system and vapour-liquid utilize system again, described waste water vapo(u)rization system comprises successively head tank, preheating unit, 1st effective evaporator, 2nd effect evaporator and the pump feed evaporator through discharge pipe line UNICOM; Described vapour-liquid utilizes system to comprise first vapour liquid separator, second vapour liquid separator, the 3rd vapour liquid separator, the first lime set flash tank, second lime set flash tank and the compressor again; Discharge pipe line between described head tank and the preheating unit is provided with feedstock pump; Discharge pipe line between preheating unit and the 1st effective evaporator is provided with first recycle pump; The lower cover of 1st effective evaporator is communicated with the upper inlet of first vapour liquid separator and second vapour liquid separator respectively through pipeline; The bottom concentrated solution outlet of first vapour liquid separator is communicated with the lower cover of 1st effective evaporator through pipeline; The vapour outlet of first vapour liquid separator is communicated with the upper cover of 2nd effect evaporator; The second vapour liquid separator bottom concentrated solution outlet is communicated with the lower cover of 2nd effect evaporator through pipeline; The lower cover of 2nd effect evaporator is communicated with the upper cover of 2nd effect evaporator and the upper cover of pump feed evaporator through second recycle pump, and the upper cover of pump feed evaporator is communicated with the 3rd vapour liquid separator through pipeline, and the lower cover of pump feed evaporator is provided with forced circulation pump; Salt pump is divided into two branch roads, wherein a branch road links to each other with the whizzer import with the connection of the 3rd vapour liquid separator middle part, another branch road through adopting in the 3rd vapour liquid separator bottom; The liquid exit of whizzer is communicated with centrifuge mother liquor jar upper cover through pipeline, and centrifuge mother liquor jar bottom is communicated with the centrifuge mother liquor pump inlet through pipeline, and the centrifuge mother liquor pump outlet is provided with escape route; Escape route has two-way outlet, and wherein a way outlet is that blow-off line, another way outlet are communicated with the 3rd vapour liquid separator middle part; The condensation-water drain of 1st effective evaporator and pump feed evaporator is communicated with the upper cover of the first lime set flash tank through pipeline; The vapour outlet of the first lime set flash tank is communicated with the upper cover of 2nd effect evaporator, and the condensation-water drain of the first lime set flash tank and 2nd effect evaporator is communicated with the upper cover of the second lime set flash tank; The vapour outlet of second vapour liquid separator, the 3rd vapour liquid separator and the second lime set flash tank is communicated with compressor, and the vapour outlet of compressor is communicated with the steam inlet of 1st effective evaporator and pump feed evaporator.
Further; Improve pre-heat effect; Described preheating unit is the two-stage preheating, and plate type preheater is adopted in first step preheating, and the shell-and-tube preheater is adopted in second stage preheating; The condensation-water drain of the second lime set flash tank is communicated with plate type preheater through the lime set pump, and the non-condensable gas of 1st effective evaporator and pump feed evaporator and excess steam are communicated with the shell-and-tube preheater through vacuum pump.The water of condensation of employing system carries out preliminary preheating to waste water, utilizes the non-condensable gas of system and excess steam to carry out preheating again, makes full use of heat energy, energy-conserving and environment-protective.
As preferably, described 1st effective evaporator and 2nd effect evaporator are falling-film evaporator, have the steam capability height, energy-saving and cost-reducing, working cost is low and can guarantee material advantage such as unchangeability in evaporative process.
Further, described compressor adopts the roots blower compressor when loading less than 5 tons/hour, when loading greater than 5 tons/hour, adopt the centrifugal blower compressor.
The beneficial effect of the utility model is that the advantage of the treatment unit of the highly salt containing organic waste water of the utility model is: the secondary steam that come out from separator (1), improve heat content through compressor; Temperature raises, and remakes the heating thermal source into vaporizer, carries out heat exchange with liquid stock in the vaporizer; Need provide few part to give birth to the steam during except driving; System's needed thermal source in service is all settled a dispute by the parties concerned themselves by system, does not need to replenish in addition to give birth to steam, and the electric energy of compressor operating only need be provided; And the consumption of electric energy is far smaller than the consumption of steam energy, and power consumption reduces greatly; (2) zero(ppm) water behind the vaporizer shell side vapor condensation does not need to dispose in addition the condensing surface cooling, has not only practiced thrift cooling circulating water, also can deliver in the preheater in addition raw material is carried out preheating; Not only heat is rationally utilized; The zero(ppm) water that temperature reduces gets into the industrial cycle pond, and as other process water, water resources also obtains reasonable recycle; System operation running cost reduces greatly, the energy saving economy remarkable benefit; (3) whole evaporation separation system volume is less, takes up an area of to lack, and technical process is simple, efficient, energy-conservation.
Adopt mechanical vapour recompression evaporation (MVR) power-saving technology; Required motor power is about 660KW (pressing NaCl); According to the geographic energy consumption index in Jiangsu; Electricity price for industrial uses be 0.75 yuan/(KWh), then the annual required working cost of MVR system be 3,560,000/year, the running cost of common relatively multiple-effect saving is about 6,350,000/year.Can know through above comparison, adopt increasing economic efficiency that the MVR system can highly significant, can help the enterprises implement target for energy-saving and emission-reduction.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the structured flowchart of treatment unit most preferred embodiment of the highly salt containing organic waste water of the utility model;
Fig. 2 is the device connection diagram of treatment unit most preferred embodiment of the highly salt containing organic waste water of the utility model.
Among the figure: 1. head tank, 2. feedstock pump, 3. vacuum pump, 4. plate type preheater, 5. lime set pump; 6. shell-and-tube preheater, 7. first recycle pump, 8. 1st effective evaporator, 9. first vapour liquid separator, the 10. first lime set flash tank; 11. second recycle pump, 12. 2nd effect evaporators, 13. second vapour liquid separators, 14. second lime set flash tanks; 15. compressor, 16. pump feed evaporators, 17. forced circulation pumps, 18. the 3rd vapour liquid separators; 19. adopt salt pump, 20. whizzers, 21. centrifuge mother liquor jars, 22. centrifuge mother liquor pumps.
Among Fig. 1 Fig. 2: waste water---
Water of condensation--------
Steam-------
Embodiment
Combine accompanying drawing that the utility model is done further detailed explanation now.These accompanying drawings are the synoptic diagram of simplification, the substruction of the utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
The most preferred embodiment of the treatment unit of the highly salt containing organic waste water of the utility model; Comprise that waste water vapo(u)rization system and vapour-liquid utilize system again, the waste water vapo(u)rization system comprises successively head tank 1, preheating unit, 1st effective evaporator 8,2nd effect evaporator 12 and the pump feed evaporator 16 through discharge pipe line UNICOM; Vapour-liquid utilizes system to comprise first vapour liquid separator 9, second vapour liquid separator 13, the 3rd vapour liquid separator 18, the first lime set flash tank 10, the second lime set flash tank 14 and compressor 15 again; Discharge pipe line between head tank 1 and the preheating unit is provided with feedstock pump 2; Discharge pipe line between preheating unit and the 1st effective evaporator 8 is provided with first recycle pump 7; The lower cover of 1st effective evaporator 8 is communicated with the upper inlet of first vapour liquid separator 9 and second vapour liquid separator 13 respectively through pipeline; The bottom concentrated solution outlet of first vapour liquid separator 9 is communicated with the lower cover of 1st effective evaporator 8 through pipeline; The vapour outlet of first vapour liquid separator 9 is communicated with the upper cover of 2nd effect evaporator 12; Second vapour liquid separator, 13 bottom concentrated solution outlets are communicated with the lower cover of 2nd effect evaporator 12 through pipeline; The lower cover of 2nd effect evaporator 12 is communicated with the upper cover of 2nd effect evaporator 12 and the upper cover of pump feed evaporator 16 through second recycle pump 11, and the upper cover of pump feed evaporator 16 is communicated with the 3rd vapour liquid separator 18 through pipeline, and the lower cover of pump feed evaporator 16 is provided with forced circulation pump 17; Salt pump 19 is divided into two branch roads, wherein a branch road links to each other with whizzer 20 imports with the connection of the 3rd vapour liquid separator 18 middle parts, another branch road through adopting in the 3rd vapour liquid separator 18 bottoms; The liquid exit of whizzer 20 is communicated with centrifuge mother liquor jar 21 upper covers through pipeline, and centrifuge mother liquor jar 21 bottoms are communicated with 22 imports of centrifuge mother liquor pump through pipeline, and the outlet of centrifuge mother liquor pump 22 is provided with escape route; Escape route has two-way outlet, and wherein a way outlet is that blow-off line, another way outlet are communicated with the 3rd vapour liquid separator 18 middle parts; The condensation-water drain of 1st effective evaporator 8 and pump feed evaporator 16 is communicated with the upper cover of the first lime set flash tank 10 through pipeline; The vapour outlet of the first lime set flash tank 10 is communicated with the upper cover of 2nd effect evaporator 12, and the condensation-water drain of the first lime set flash tank 10 and 2nd effect evaporator 12 is communicated with the upper cover of the second lime set flash tank 14; The vapour outlet of second vapour liquid separator 13, the 3rd vapour liquid separator 18 and the second lime set flash tank 14 is communicated with compressor 15, and the vapour outlet of compressor 15 is communicated with the steam inlet of 1st effective evaporator 8 and pump feed evaporator 16.
Preheating unit is the two-stage preheating; Plate type preheater 4 is adopted in first step preheating; Shell-and-tube preheater 6 is adopted in second stage preheating; The condensation-water drain of the second lime set flash tank 14 is communicated with plate type preheater 4 through lime set pump 5, and the non-condensable gas and the excess steam of 1st effective evaporator 8 and pump feed evaporator 16 are communicated with shell-and-tube preheater 6 through vacuum pump 3.
1st effective evaporator 8 is falling-film evaporator with 2nd effect evaporator 12.
With above-mentioned desirable embodiment according to the utility model is enlightenment, and through above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this utility model technological thought.The technical scope of this utility model is not limited to the content on the specification sheets, must confirm its technical scope according to the claim scope.
Claims (4)
1. the treatment unit of a highly salt containing organic waste water is characterized in that: comprise that waste water vapo(u)rization system and vapour-liquid utilize system again,
Described waste water vapo(u)rization system comprises head tank (1), preheating unit, 1st effective evaporator (8), 2nd effect evaporator (12) and the pump feed evaporator (16) that passes through discharge pipe line UNICOM successively;
Described vapour-liquid utilizes system to comprise first vapour liquid separator (9), second vapour liquid separator (13), the 3rd vapour liquid separator (18), the first lime set flash tank (10), the second lime set flash tank (14) and compressor (15) again;
Discharge pipe line between described head tank (1) and the preheating unit is provided with feedstock pump (2); Discharge pipe line between preheating unit and the 1st effective evaporator (8) is provided with first recycle pump (7); The lower cover of 1st effective evaporator (8) is communicated with the upper inlet of first vapour liquid separator (9) and second vapour liquid separator (13) respectively through pipeline; The bottom concentrated solution outlet of first vapour liquid separator (9) is communicated with the lower cover of 1st effective evaporator (8) through pipeline; The vapour outlet of first vapour liquid separator (9) is communicated with the upper cover of 2nd effect evaporator (12); Second vapour liquid separator (13) bottom concentrated solution outlet is communicated with the lower cover of 2nd effect evaporator (12) through pipeline; The lower cover of 2nd effect evaporator (12) is communicated with the upper cover of 2nd effect evaporator (12) and the upper cover of pump feed evaporator (16) through second recycle pump (11); The upper cover of pump feed evaporator (16) is communicated with the 3rd vapour liquid separator (18) through pipeline; The lower cover of pump feed evaporator (16) is provided with forced circulation pump (17), and salt pump (19) is divided into two branch roads, wherein a branch road links to each other with whizzer (20) import with the connection of the 3rd vapour liquid separator (18) middle part, another branch road through adopting in the 3rd vapour liquid separator (18) bottom, and the liquid exit of whizzer (20) is communicated with centrifuge mother liquor jar (21) upper cover through pipeline; Centrifuge mother liquor jar (21) bottom is communicated with centrifuge mother liquor pump (22) import through pipeline; The outlet of centrifuge mother liquor pump (22) is provided with escape route, and escape route has two-way outlet, and wherein a way outlet is that blow-off line, another way outlet are communicated with the 3rd vapour liquid separator (18) middle part;
The condensation-water drain of 1st effective evaporator (8) and pump feed evaporator (16) is communicated with the upper cover of the first lime set flash tank (10) through pipeline; The vapour outlet of the first lime set flash tank (10) is communicated with the upper cover of 2nd effect evaporator (12), and the condensation-water drain of the first lime set flash tank (10) and 2nd effect evaporator (12) is communicated with the upper cover of the second lime set flash tank (14);
The vapour outlet of second vapour liquid separator (13), the 3rd vapour liquid separator (18) and the second lime set flash tank (14) is communicated with compressor (15), and the vapour outlet of compressor (15) is communicated with the steam inlet of 1st effective evaporator (8) and pump feed evaporator (16).
2. the treatment unit of highly salt containing organic waste water as claimed in claim 1; It is characterized in that: described preheating unit is the two-stage preheating; Plate type preheater (4) is adopted in first step preheating; Shell-and-tube preheater (6) is adopted in second stage preheating, and the condensation-water drain of the second lime set flash tank (14) is communicated with plate type preheater (4) through lime set pump (5), and the non-condensable gas of 1st effective evaporator (8) and pump feed evaporator (16) and excess steam are communicated with shell-and-tube preheater (6) through vacuum pump (3).
3. the treatment unit of highly salt containing organic waste water as claimed in claim 1, it is characterized in that: described 1st effective evaporator (8) and 2nd effect evaporator (12) are falling-film evaporator.
4. the treatment unit of highly salt containing organic waste water as claimed in claim 1, it is characterized in that: described compressor (15) is roots blower compressor or centrifugal blower compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220161554 CN202625969U (en) | 2012-04-17 | 2012-04-17 | High-salinity organic wastewater treatment device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220161554 CN202625969U (en) | 2012-04-17 | 2012-04-17 | High-salinity organic wastewater treatment device |
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| CN202625969U true CN202625969U (en) | 2012-12-26 |
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| CN 201220161554 Expired - Lifetime CN202625969U (en) | 2012-04-17 | 2012-04-17 | High-salinity organic wastewater treatment device |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105152434A (en) * | 2014-05-26 | 2015-12-16 | 中冶东方工程技术有限公司秦皇岛研究设计院 | Method and device for treating pickling waste water from stainless steel cold-rolling |
| CN105236651A (en) * | 2015-10-03 | 2016-01-13 | 中国轻工业长沙工程有限公司 | Technology for evaporating and crystallizing high concentration salt-containing wastewater in pulping and papermaking industries |
| CN105413201A (en) * | 2015-11-03 | 2016-03-23 | 上海尧兴投资管理有限公司 | Self-cleaned evaporator and sewage purification system |
| CN105776694A (en) * | 2015-12-25 | 2016-07-20 | 浙江奇彩环境科技股份有限公司 | Energy-saving treatment system for high-concentration organic salt-containing wastewater |
| CN106277128A (en) * | 2016-09-27 | 2017-01-04 | 深圳市瑞升华科技股份有限公司 | A kind of economic benefits and social benefits forced-circulation evaporation system |
| CN107055654A (en) * | 2017-04-13 | 2017-08-18 | 北京浦仁美华环保科技股份有限公司 | High-salt wastewater low-temperature multi-effect evaporates MVR evaporative crystallization group technologies |
| CN108101295A (en) * | 2018-01-22 | 2018-06-01 | 淮安国瑞化工有限公司 | A kind of high saliferous waste water treatment system containing solvent and technique |
| CN108558111A (en) * | 2018-07-03 | 2018-09-21 | 常州大学 | A kind of condensed oil sewage processing system and method |
| CN110217934A (en) * | 2019-07-22 | 2019-09-10 | 四川省川南酿造有限公司 | A kind of preparation method of pickled vegetable brine MVR evaporative crystallization |
-
2012
- 2012-04-17 CN CN 201220161554 patent/CN202625969U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105152434A (en) * | 2014-05-26 | 2015-12-16 | 中冶东方工程技术有限公司秦皇岛研究设计院 | Method and device for treating pickling waste water from stainless steel cold-rolling |
| CN105236651A (en) * | 2015-10-03 | 2016-01-13 | 中国轻工业长沙工程有限公司 | Technology for evaporating and crystallizing high concentration salt-containing wastewater in pulping and papermaking industries |
| CN105413201A (en) * | 2015-11-03 | 2016-03-23 | 上海尧兴投资管理有限公司 | Self-cleaned evaporator and sewage purification system |
| CN105776694A (en) * | 2015-12-25 | 2016-07-20 | 浙江奇彩环境科技股份有限公司 | Energy-saving treatment system for high-concentration organic salt-containing wastewater |
| CN105776694B (en) * | 2015-12-25 | 2019-04-02 | 浙江奇彩环境科技股份有限公司 | A kind of energy-efficient treatment system of the organic brine waste of high concentration |
| CN106277128A (en) * | 2016-09-27 | 2017-01-04 | 深圳市瑞升华科技股份有限公司 | A kind of economic benefits and social benefits forced-circulation evaporation system |
| CN107055654A (en) * | 2017-04-13 | 2017-08-18 | 北京浦仁美华环保科技股份有限公司 | High-salt wastewater low-temperature multi-effect evaporates MVR evaporative crystallization group technologies |
| CN108101295A (en) * | 2018-01-22 | 2018-06-01 | 淮安国瑞化工有限公司 | A kind of high saliferous waste water treatment system containing solvent and technique |
| CN108558111A (en) * | 2018-07-03 | 2018-09-21 | 常州大学 | A kind of condensed oil sewage processing system and method |
| CN108558111B (en) * | 2018-07-03 | 2024-05-03 | 常州大学 | System and method for treating thickened oil sewage |
| CN110217934A (en) * | 2019-07-22 | 2019-09-10 | 四川省川南酿造有限公司 | A kind of preparation method of pickled vegetable brine MVR evaporative crystallization |
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