CN107324426A - A kind of residual heat from boiler fume coupling evaporation concentrates desulfurization wastewater system - Google Patents
A kind of residual heat from boiler fume coupling evaporation concentrates desulfurization wastewater system Download PDFInfo
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- CN107324426A CN107324426A CN201710670267.5A CN201710670267A CN107324426A CN 107324426 A CN107324426 A CN 107324426A CN 201710670267 A CN201710670267 A CN 201710670267A CN 107324426 A CN107324426 A CN 107324426A
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- 239000002351 wastewater Substances 0.000 title claims abstract description 47
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 45
- 230000023556 desulfurization Effects 0.000 title claims abstract description 42
- 238000001704 evaporation Methods 0.000 title claims abstract description 18
- 230000008020 evaporation Effects 0.000 title claims abstract description 18
- 239000003517 fume Substances 0.000 title claims abstract description 12
- 230000008878 coupling Effects 0.000 title claims abstract description 8
- 238000010168 coupling process Methods 0.000 title claims abstract description 8
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 8
- 239000012141 concentrate Substances 0.000 title claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 50
- 239000007789 gas Substances 0.000 claims abstract description 41
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 239000000779 smoke Substances 0.000 claims abstract description 4
- 238000007363 ring formation reaction Methods 0.000 claims abstract description 3
- 230000000694 effects Effects 0.000 claims description 53
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 8
- 239000003546 flue gas Substances 0.000 claims description 8
- 229910052602 gypsum Inorganic materials 0.000 claims description 4
- 239000010440 gypsum Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 239000000498 cooling water Substances 0.000 claims description 3
- 239000002562 thickening agent Substances 0.000 claims description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 2
- 239000005864 Sulphur Substances 0.000 claims description 2
- 239000012535 impurity Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 7
- 238000004065 wastewater treatment Methods 0.000 abstract description 5
- 239000003814 drug Substances 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 7
- 238000001764 infiltration Methods 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 239000012528 membrane Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 238000010025 steaming Methods 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 238000001223 reverse osmosis Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002510 pyrogen Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/16—Treatment of water, waste water, or sewage by heating by distillation or evaporation using waste heat from other processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/048—Purification of waste water by evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/06—Flash evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Treating Waste Gases (AREA)
Abstract
Include the invention discloses a kind of residual heat from boiler fume coupling evaporation concentration desulfurization wastewater system：Chimney heat exchanger, evaporator group, tail gas condenser and tail gas condensing tank, evaporator group, tail gas condenser and tail gas condensing tank are sequentially connected by desulfurization wastewater pipeline, and flue heating system is connected with evaporator group；Chimney heat exchanger, is arranged in the discharge-channel of boiler smoke, utilizes the desulfurization wastewater in fume afterheat heating evaporation device group；Evaporator group, including at least one set of evaporator, every group of evaporator include heater, circulating pump and the separator that cyclization is connected by pipeline, and chimney heat exchanger is connected with heater, and steam (vapor) outlet and concentrated solution outlet are provided with separator；Tail gas condenser, the steam cooling of evaporation is condensed；Tail gas condensing tank, stores condensed water and sends into finished product water tank.The system is in desulfurization wastewater concentration process, without any medicine, the clean Water circulation that distilled goes out, and desulfurization wastewater treatment system backwater rate is more than 90%.
Description
Technical field
The present invention relates to the technical field of heat-engine plant desulfurized wastewater treatment, especially a kind of residual heat from boiler fume coupling evaporation
Concentrate desulfurization wastewater system.
Background technology
In large-size thermal power plant Gypsum Wet boiler flue gas desulfurization system, to ensure desulfuration efficiency, maintain
System chloride equilibrium is, it is necessary to discharge part desulfurization wastewater.Because containing a large amount of dissolving salts, solid suspension and a small amount of fluorine in waste water
The noxious pollutants such as ion, heavy metal ion, it is impossible to directly discharge, as one of most intractable waste water in coal-burning power plant.At present,
The desulfuration waste water treatment process generally used is that waste water is flocculated, settled and neutralized using chemical treatment method, is reduced useless
Suspension and harmful substance in water, water outlet salt content is very high after processing, and directly discharge causes secondary pollution.In recent years, it is domestic
Outer many scholars begin one's study desulfurization wastewater concentration technology.
But, the investment and operating cost due to current desulfurization wastewater zero-discharge technology are high, particularly Waste water concentrating skill
Art, current practice case is less.
The front portion of preconditioning technique only increases depth softening mode as conventional three header modes, i.e., from
The mode such as sub-exchange resin depth removes the hardness in waste water.
Film concentration is the technology that a kind of reform traditional technique realizes efficiently purifying concentration.It utilizes active ingredient and liquid
The different separation for realizing orientation of molecular weight, reach the effect of concentration.Being mainly used in the film concentration of desulfurization wastewater has counter-infiltration
With positive infiltration.The retention object of counter-infiltration is all ions, only allows water to pass through film, to Cl-Rejection more than 98%, go out
Water is deionized water.Hyperfiltration can remove metal salt, organic matter, bacterium, colloidal particle, the pyrogen of solubility,
All ions can be retained, the reverse osmosis membrane in terms of production pure water, softened water, deionized water, product concentration, wastewater treatment
It has been widely used.Positive infiltration refers to that water passes through permselectivity membrane stream from higher water chemistry gesture (or compared with Hyposmolality) side region
To the process of relatively low water chemistry gesture (or compared with hyperosmosis) side region.Relative to pressure-actuated membrane separating process such as micro-filtration, surpass
Filter and reverse osmosis technology, it is many unique that this technology has the advantages that from process nature, such as low pressure even without press operation, because
And energy consumption is relatively low；Many pollutants are almost retained completely, good separating effect.However, it is desirable to using a large amount of medicaments, for waste water
Processing, and its system complex, operation and maintenance cost are high（About 45 yuan/ton waste water）, periodic replacement film（General 2-3 is more
Change once）Maintenance cost is high.
The content of the invention
For problems of the prior art, it is an object of the invention to provide a kind of waste heat of utilization boiler smoke,
The system of manifold type evaporation is carried out to the desulfurization wastewater of concentration, so as to reach the purpose for reducing desulfurization wastewater discharge.
To achieve these goals, technical scheme is as follows：
A kind of residual heat from boiler fume coupling evaporation concentrates desulfurization wastewater system, and the system includes：Chimney heat exchanger, evaporator group,
Tail gas condenser and tail gas condensing tank, the evaporator group, the tail gas condenser and institute are sequentially connected by desulfurization wastewater pipeline
Tail gas condensing tank is stated, the flue heating system is connected with the evaporator group；Wherein,
The chimney heat exchanger, is arranged in the discharge-channel of boiler smoke, utilizes taking off in fume afterheat heating evaporation device group
Sulphur waste water；
The evaporator group, including at least one set of evaporator, evaporator described in every group include by pipeline connect cyclization heater,
Circulating pump and separator, the chimney heat exchanger are connected with the heater, steam (vapor) outlet are provided with the separator and dense
Contracting liquid is exported, and evaporator group is separated moisture in desulfurization wastewater with salinity impurity by way of evaporation；
The tail gas condenser, the steam cooling of evaporation is condensed；
The tail gas condensing tank, stores condensed water and sends into finished product water tank.
Further, when setting multigroup evaporator, evaporator series connection：The steam of separator described in upper level goes out
Mouth is connected with heater described in next stage, and the concentrated solution outlet of upper level separator is connected with next stage separator.
Further, in addition to first group condensation-water drain is provided with the heater in other described evaporators, it is described cold
Solidifying water out is connected with the tail gas condensing tank.
Further, it is connected with tail gas vacuum extractor on the tail gas condensing tank.
Further, the steam generator and lower condensate sump being connected with heat exchanger tube are provided with the flue gas heat-exchange unit, it is described
Steam generator is connected by steam pipework with the steam inlet of the heater, the condensation-water drain of heater and described one effect
The condensing water inlet connection of drainer, the condensation-water drain of an effect drainer is connected to form Jie by water pump with the lower condensate sump
The circulation loop of matter water.
Further, it is provided with water pipe on the effect drainer.
Further, it is provided with an effect vacuum extractor on the effect drainer.
Further, the concentrate separated out by the evaporator component is connected by thickener with gypsum storehouse.
Further, it is provided with cooling water pipe in the tail gas condenser.
Advantages of the present invention has：
1）Flue heater heats desulfurization wastewater using boiler back end ductwork fume afterheat, with the multiple-effect sudden strain of a muscle carried out using evaporator
Steaming technique is combined.Both UTILIZATION OF VESIDUAL HEAT IN is reached, the temperature that flue gas enters desulfuration absorbing tower can be reduced again, so as to reduce desulfurization
The water consume of system.By flue gas, the flue-gas temperature into desulphurization system can reduce about 5-8 DEG C, reduce desulphurization system resistance
About 60Pa.
2）Using the multi-effect flashing steam technology of multigroup evaporator combinations, realize that energy ladder is utilized, improve the utilization of the energy
Rate.Using boiler tail flue gas waste heat, whole evaporation process is inputted without external steam, realizes low energy expenditure.
3）Three header processing and pretreatment need not be carried out to desulfurization wastewater, save the investment of above-mentioned link and run into
This, it is to avoid is because three headers handle the generation of sludge.
4) in desulfurization wastewater concentration, without any medicine, the clean Water circulation that distilled goes out.
5) desulfurization wastewater treatment system backwater rate is more than 90%.
Brief description of the drawings
Fig. 1 is the schematic diagram that residual heat from boiler fume coupling evaporation of the present invention concentrates desulfurization wastewater system；
Wherein, 1 flue heater, 2 evaporator groups, 3 tail gas condensers, 4 tail gas condensing tanks, 5 one effect drainers, 6 heat exchanger tubes, 7
Steam generator, 8 lower condensate sumps, 9 visors, the effects of 10a mono- separator, the effects of 10b bis- separator, 10c triple effects separator, 11a mono- are imitated
Circulating pump, 11b bis- effect circulating pump, 11c triple effect cycles pump, 12a mono- effect heater, 12b bis- effect heater, 12c triple effects heater,
13 condensate pumps, 14 tail gas vavuum pumps, 15 1 effect vavuum pumps, 16 humidification water pumps, A 1st effective evaporators.
Embodiment
The principle and feature of the present invention are more fully illustrated below with reference to accompanying drawing and example.The present invention can be with
A variety of multi-forms are presented as, the exemplary embodiment for being confined to describe here is not construed as.
For ease of explanation, the space relative terms such as " on ", " under ", "left", "right" can be used herein, are used for
The element or feature shown in explanation figure is relative to another element or the relation of feature.It should be understood that except figure
In outside the orientation that shows, spatial terminology is intended to include the different azimuth of device in use or operation.If for example, in figure
Device be squeezed, be stated as being located at other elements or feature " under " element will be located into other elements or feature " on ".
Therefore, exemplary term " under " can be both comprising upper and lower orientation.Device can be positioned otherwise（It is rotated by 90 ° or position
In other orientation）, can correspondingly be explained used herein of the relative explanation in space.
As shown in figure 1, residual heat from boiler fume coupling evaporation concentration desulfurization wastewater system mainly includes：Flue heater 1, steaming
Send out device group 2, tail gas condenser 3 and tail gas condensing tank 4.Evaporator group 2 is at least provided with one group of evaporator A, naturally it is also possible to connect
Set multigroup, three groups of evaporators are specifically provided with the present embodiment.
Chimney heat exchanger 1 is arranged in boiler air preheater exhaust pass, and flue gas heat-exchange unit 1 includes heat exchanger tube 6, steam
Generator 7 and lower condensate sump 8, steam generator 7 and lower condensate sump 8 are connected with heat exchanger tube 6, are provided with and are regarded on steam generator 7
Mirror 9, the operating mode such as the water level for observing steam generator 7；Steam generator 7 is connected by steam pipework and an effect heater 12a
Connect, the condensation-water drain on an effect heater 12a is connected with an effect condensate water pot 5, an effect condensate water pot 5 is by humidifying water pump 16
It is connected with lower condensate sump 8, constitutes and be connected with an effect vacuum extractor 15 on the circulation loop of WATER AS FLOW MEDIUM, an effect condensate water pot 5,
An effect vacuum extractor 15 is vavuum pump in the present embodiment, and the air in the circulation loop is detached and is discharged into air by vavuum pump,
WATER AS FLOW MEDIUM and steam is set to be in vacuum environment, to improve the vaporization potential of steam.WATER AS FLOW MEDIUM is provided with one effect condensate water pot 5
Water pipe.
Evaporator group 2, tail gas condenser 3 and tail gas condensing tank 4 are sequentially connected by desulfurization wastewater pipeline；Wherein, evaporator
Group 2 includes three groups of evaporators, and with 1st effective evaporator A in order to illustrate the composition of evaporator, 1st effective evaporator A includes an effect point
From device 10a, an effect circulating pump 11a and effect heater a 12a, an effect separator 10a, an effect circulating pump 11a and an effect heater
12a has pipeline connection to be in loop, and desulfurization wastewater separates 10a connections with an effect, and desulfurization wastewater carries out heat in an effect heater 12a
Amount is exchanged, and steam is connected by the pipeline at the top of it with two effect heater 12b in an effect separator 10a, is heated as two effects
The concentrate separated in device 12b thermal source, an effect separator 10a is connected with two effect separator 10b, is used as two effect separator 10b
Separation object, by two effect circulating pump 11b drivings in 2nd effect evaporator interior circulation, similarly, the steaming that two effect separator 10b are isolated
Vapour enters triple effect heater 12c, as triple effect heater 12c thermal source, with entering triple effect in the presence of triple effect cycle pump 11c
Separator 10c concentrate carries out heat exchange, and the steam that triple effect separator 10c is isolated is cooled down into tail gas condenser 3, and
Feeding gypsum stock is put after the concentrate isolated is thickened by thickener.
Steam enters after tail gas condenser 3, and heat exchange cooling is carried out with cooling water pipe in tail gas condenser 3, is flowed into after cooling
Tail gas condensing tank 4, in the presence of condensate pump 13, is discharged into finished product water tank.
Imitated as the steam of thermal source two after heater 12b and triple effect heater 12c heat exchange is cooled down from condensation-water drain stream
Go out, converge into tail gas condensing water pot 4.
Tail gas vacuum extractor 14 is connected with tail gas condensing tank 4, tail gas vacuum extractor 14 is true in the present embodiment
Empty pump, will form vacuum environment in desulfurization wastewater pipeline, improve the vaporization potential of steam in evaporator group.
The system is in desulfurization wastewater concentration process, without any medicine, the clean Water circulation that distilled goes out, desulfurization wastewater
Processing system backwater rate is more than 90%.
Several preferred embodiments of the application, but the application not limited to this, every ability are only described above in association with accompanying drawing
Domain those of ordinary skill is not in the case where departing from spirit herein, and any improvement and/or deformation made belong to the guarantor of the application
Protect scope.
Claims (9)
1. a kind of residual heat from boiler fume coupling evaporation concentrates desulfurization wastewater system, it is characterised in that the system includes：Flue heat exchange
Device, evaporator group, tail gas condenser and tail gas condensing tank, the evaporator group, the tail are sequentially connected by desulfurization wastewater pipeline
Gas condenser and the tail gas condensing tank, the flue heating system are connected with the evaporator group；Wherein,
The chimney heat exchanger, is arranged in the discharge-channel of boiler smoke, utilizes taking off in fume afterheat heating evaporation device group
Sulphur waste water；
The evaporator group, including at least one set of evaporator, evaporator described in every group include by pipeline connect cyclization heater,
Circulating pump and separator, the chimney heat exchanger are connected with the heater, steam (vapor) outlet are provided with the separator and dense
Contracting liquid is exported, and evaporator group is separated moisture in desulfurization wastewater with salinity impurity by way of evaporation；
The tail gas condenser, the steam cooling of evaporation is condensed；
The tail gas condensing tank, stores condensed water and sends into finished product water tank.
2. desulfurization wastewater system as claimed in claim 1, it is characterised in that when setting multigroup evaporator, evaporator
It is connected in series：Heater described in the steam (vapor) outlet and next stage of separator described in upper level is connected, the concentration of upper level separator
Liquid outlet is connected with next stage separator.
3. desulfurization wastewater system as claimed in claim 2, it is characterised in that in other described evaporators in addition to first group
Condensation-water drain is provided with heater, the condensation-water drain is connected with the tail gas condensing tank.
4. desulfurization wastewater system as claimed in claim 1, it is characterised in that be connected with tail gas on the tail gas condensing tank and take out very
Empty device.
5. desulfurization wastewater system as claimed in claim 1, it is characterised in that be provided with the flue gas heat-exchange unit and heat exchanger tube
The steam generator and lower condensate sump of connection, the steam generator are connected by the steam inlet of steam pipework and the heater
Connect, the condensation-water drain of heater is connected with the condensing water inlet of an effect drainer, the condensation-water drain of an effect drainer passes through
Water pump is connected the circulation loop to form WATER AS FLOW MEDIUM with the lower condensate sump.
6. desulfurization wastewater system as claimed in claim 5, it is characterised in that be provided with filling pipe on the effect drainer
Road.
7. desulfurization wastewater system as claimed in claim 5, it is characterised in that be provided with an effect on the effect drainer and take out very
Empty device.
8. desulfurization wastewater system as claimed in claim 1, it is characterised in that the concentrate separated out by the evaporator component
It is connected by thickener with gypsum storehouse.
9. desulfurization wastewater system as claimed in claim 1, it is characterised in that be provided with cooling water in the tail gas condenser
Pipe.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109179538A (en) * | 2018-09-28 | 2019-01-11 | 南京龙源环保有限公司 | A kind of zero-discharge treatment system of desulfurization wastewater concentration, evaporation and crystallization one |
| CN109399746A (en) * | 2018-12-21 | 2019-03-01 | 福建龙净环保股份有限公司 | A kind of desulfurization wastewater recycling treatment system |
| CN111186953A (en) * | 2020-01-19 | 2020-05-22 | 济南山源环保科技有限公司 | Thermal desulfurization wastewater zero discharge system and method |
| CN111362339A (en) * | 2020-04-15 | 2020-07-03 | 成都三顶环保科技有限公司 | A concentrated atomizing evaporation to dryness equipment for desulfurization waste water |
| CN111777117A (en) * | 2020-06-30 | 2020-10-16 | 上海江柘环境工程技术有限公司 | Anti-scaling triple-effect evaporation system for zero discharge of desulfurization wastewater of coal-fired power plant |
| CN113979497A (en) * | 2021-05-31 | 2022-01-28 | 北京清新环境技术股份有限公司 | Method for lifting water by using waste heat and waste water of boiler |
| CN114349101A (en) * | 2022-01-14 | 2022-04-15 | 国家电投集团远达水务有限公司 | High-salinity wastewater evaporation and concentration system utilizing waste heat and using method thereof |
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