CN107473482A - A kind of desulfurization wastewater flue spray evaporation processing method and system - Google Patents
A kind of desulfurization wastewater flue spray evaporation processing method and system Download PDFInfo
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- CN107473482A CN107473482A CN201710845220.8A CN201710845220A CN107473482A CN 107473482 A CN107473482 A CN 107473482A CN 201710845220 A CN201710845220 A CN 201710845220A CN 107473482 A CN107473482 A CN 107473482A
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- flue
- desulfurization wastewater
- evaporation
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- 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
- C02F1/10—Treatment of water, waste water, or sewage by heating by distillation or evaporation by direct contact with a particulate solid or with a fluid, as a heat transfer medium
- C02F1/12—Spray evaporation
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- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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- 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
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- Treating Waste Gases (AREA)
Abstract
The present invention discloses a kind of desulfurization wastewater flue spray evaporation processing method and system, and it includes smoke processing system, desulfurization wastewater spray evaporation system, bypass flue system, automatic control system；The smoke processing system includes air preheater, flue, demister, deduster, desulfurizing tower, chimney；The desulfurization wastewater spray evaporation system includes sedimentation basin, water tank, water pump, heat exchanger, sprayer unit；The bypass flue system includes bypass flue 1, bypass flue 2；The automatic control system includes actuator, flue gas acid dew point instrument, controller；Wherein desulfurization wastewater spray evaporation system forms air-flow protection layer, prevents acid drop from splashing wall and causing to corrode, while increase space turbulent extent, accelerate evaporation by increasing gas approach in flue wall.Present invention processing and manufacturing is simple, and cost of investment is low, larger raising evaporation efficiency.
Description
Technical field
The present invention relates to field of waste water treatment, especially a kind of desulfurization wastewater flue spray evaporation processing method and system.
Background technology
The discharge of the industry combustion product gases such as oil, chemical industry, electric power, metallurgy, cement, weaving is to cause the chief-criminal of haze weather
Chief culprit, under the pressure of the pressure of national environmental protection policy, in order to which air environmental protection index is up to standard, evade environmentally friendly legal risk, it is industrial in recent years
The technological transformation of bound pair flue gas desulfurization and denitrification and plant construction are paid much attention to, and desulphurization denitration is written with government and enterprise by many provinces and cities
's《Major pollutants total amount emission reduction liability statement》.But flue gas desulfurization and denitrification is reducing SO2, NOx to atmosphere pollution while, production
The processing of raw a large amount of desulphurization denitration waste water is but into another problem.
Desulphurization denitration waste water is a kind of typical high saliferous (typically in 30000~60000mg/L), high suspended matter (10000
~60000mg/L), high rigidity (Ca2+1500~5000mg/L,In more than 4000mg/L), highly corrosive (Cl-Content
It is high, in acid pH 4~6.5), water quality it is big with time and working conditions change, be the extremely complex intractable waste water of composition, treated
Problems are faced in journey.Mainly based on chemical treatment, its processing system is divided into useless desulphurization denitration waste water conventional processes
Water treatment system and sludge treating system.Waste Water Treatment is broadly divided into the processes such as neutralization, sedimentation, flocculation, concentrating clarifying.Certain
Enterprise's desulphurization denitration waste water is after conventional processes, water outlet(20000mg/L)、Cl-(15000mg/L)、Na+
(1500-4500mg/L)、Ca2+(1000-2000mg/L), total salinity TDS (15000-25000mg/L), COD COD
The content of (120mg/L) etc. is still very high, does not reach national current increasingly strict environment protection control index and emission reduction targets requirement.
At present, around the processing of desulphurization denitration highly salt containing organic waste water, domestic and foreign scholars have opened many researchs, conventional side
Method has：Biochemical treatment process, ion-exchange, resin adsorption method, membrane separation process, hyperfiltration, evaporation.Due to desulphurization denitration work
Skill is different, and caused desulphurization denitration waste component is also different, causes waste component complicated and changeable, and current any of the above described one kind is single
Treatment technology be all difficult to meet energy-conserving and environment-protective and the requirement of recycling.
Domestic and international expert increasingly had concern spray evaporation method in recent years, because its performance driving economy is good, processing is thorough,
' zero-emission ' on real meaning can be realized.But often occur some problems in actual moving process：Deduster and flue
Burn into influence the safe operation production of factory existing equipment, treating capacity small etc..Research finds desulfurization wastewater in spray evaporation
Cheng Zhong, atomized drop easily move to flue wall, cause the fouling of flue wall, dust stratification, and the compartment time just needs once to be steamed
Vapour soot blowing, while the acidity of desulfurization wastewater drop can cause to corrode to flue wall.
The content of the invention
In view of the above-mentioned problems, a kind of desulfurization wastewater flue spray evaporation processing method of the present invention and system, by flue
(3) two side walls and bottom surface increase smoke inlet, had both increased space turbulent extent, accelerated evaporation, and form air-flow in wall and protect
Sheath, prevent drop from splashing on wall and cause wall to corrode.And sprayer unit (12) uses multiinjector multi-tier arrangement, increases
Wastewater treatment capacity.Automatic control system is devised simultaneously, measures the flue-gas temperature and flue gas acid dew point of deduster porch in real time
Temperature, once the flue-gas temperature measured in real time is not more than more than 5 degree of flue gas acid dew point temperature, then controller (19) is sent instructions to
Bypass flue flow actuator (14,17) increases certain aperture, and pipeline flow actuator (15) reduces certain aperture, it is ensured that
Flue gas does not cause to damage to deduster and upstream device.
To achieve the above object, the technical solution adopted by the present invention is as follows：
A kind of desulfurization wastewater flue spray evaporation processing method and system, it is characterised in that：The system mainly includes flue gas
Processing system, desulfurization wastewater spray evaporation system, bypass flue system, automatic control system；The smoke processing system includes
Flue gas generation device (1), air preheater (2), flue (3), demister (4), deduster (5), desulfurizing tower (6), chimney (7)；
The desulfurization wastewater spray evaporation system includes sedimentation basin (8), water tank (9), water pump (10), heat exchanger (11), sprayer unit
(12)；The bypass flue system includes bypass flue 1 (18), bypass flue 2 (13)；The automatic control system includes pipeline
Flow actuator (15), bypass flue flow actuator (14,17), flue gas acid dew point instrument (16), controller (19).
Further, flue gas caused by flue gas generation device (1) passes through air preheater in described smoke processing system
(2) after reclaiming used heat, evaporation atomized drop in the flue (3) before demister (4), the vapor and crystal after evaporation are with cigarette
Gas flow forward, the droplet being mingled with flue gas and moist crystal are removed through demister (4), removing is trickle in deduster (5)
Particulate matter sloughs sulphur into neat stress, then through desulfurizing tower (6) wet method, is finally arranged from chimney (7) to air.
Further, the waste water that desulfurizing tower (6) is discharged in described desulfurization wastewater spray evaporation system is wadded a quilt with cotton through sedimentation basin (8)
Retrogradation is formed sediment, supernatant liquor overflow to water tank (9), and extracting water tank (9) waste liquid to heat exchanger (11) by water pump (10) preheats
Concentration, the waste liquid after preheating concentration are atomization in flue (3) by nozzle to sprayer unit (12).
Further, extracted in described bypass flue system from the flue before air preheater (3) by two strands of high temperature
Road flue gas, stock-traders' know-how bypass flue 1 (18) following current to spray evaporation region flue (3) bottom, uniformly spray from the bottom to top；It is another
Stock flue gas preheats concentration desulfurization wastewater through bypass flue 2 (13) to heat exchanger (11), the flue gas after waste heat recovery to spray evaporation
Region flue (3) two side, it is symmetrical to spray.
Further, the flue gas of deduster entrance is measured in described automatic control system by flue gas acid dew point instrument (16)
Temperature and acid dew-point temperature, real-time Data Transmission to controller (19), judged from control processor (19) and to actuator
(14,15,17) instruction is sent, automatically changes the aperture of valve.
Further, described flue (3) sets up gas approach in left and right wall and bottom wall, using being arranged symmetrically；
Side gas approach is staggeredly arranged using three layers, the horn-like import of upper and lower two layers of use, is expanded wall air-flow protection layer, is prevented liquid
Drop and moist crystal are splashed on wall, are adhered to it and are caused wall to corrode, and centre uses gradual shrinkage import, increase space
Turbulent extent, accelerate the evaporation of atomized drop；Bottom gas approach is arranged using horn-like array, on the one hand postpones drop in sky
In residence time, increase atomized drop evaporation efficiency, on the other hand prevent big drop and crystal from dropping in bottom wall and make
Into burn into dust stratification；Specific import number, shape, big I adjust according to actual condition.
Further, atomizer using 3 × 3 arrangements, had both arranged three rows, it is each often to arrange 3 in described sprayer unit (12)
Nozzle, first row and second row distance are L1, second row and the 3rd array pitch from for L2, L2=1~1.5L1, avoid atomized drop
Excessively to concentrate, evaporation is not thorough, or drop is splashed on wall, and nozzle is from top to bottom sprayed perpendicular to flow of flue gas direction,
When avoiding convection current or concurrent spray, complicated pipeline configuration has a strong impact on flow of flue gas in flue, specifically arranges the number of plies, nozzle number
Mesh can adjust according to each factory's operation conditions；The atomizing type of described sprayer unit (12) is pressure atomization mode, is both utilized
Pressure make spreading liquid film forming and by air tear and produce atomization, or using high velocity air severe impact liquid make liquid into
Film and then the pneumatic nebulization mode being atomized, its medium can be air or flue gas.
Further, flue gas acid dew point instrument (16) measures deduster porch flue gas in real time in described automatic control system
Temperature and flue gas acid dew point temperature, once the flue-gas temperature measured in real time is not more than more than 5 degree of flue gas acid dew point temperature, then control
Device (19), which sends instructions to bypass flue flow actuator (14,17), increases certain aperture, and pipeline flow actuator (15) subtracts
Small certain aperture.
Further, described controller (19) can be conventional instrument controller or computer.
The present invention is compared to the prior art compared with beneficial effect is：
High-temperature flue gas heats desulfurization wastewater by heat exchanger before the present invention utilizes air preheater, so as to accelerate desulfurization wastewater
Evaporation rate, it is not necessary to extra heat input, save the energy.
The present invention bypasses gas approach by increasing in flue two side and bottom, and air-flow protection layer is formed in wall, every
Atomized drop and wall absolutely directly contacts, and reduces the corrosion to flue wall.The flue gas sprayed from bottom to top by ground,
The time that drop stays aloft is added, accelerates the evaporation of drop.The bypass flue gas temperature extracted simultaneously before air preheater
Degree can realize caused moist crystal rapid steaming after atomized drop and evaporation apparently higher than the flue-gas temperature after air preheater
It is dry dry, avoid that downstream flue and deduster are caused to damage.
The present invention installs a demister additional before deduster, removes the steam in flue with flow of flue gas and moist crystallization
Particulate matter, prevent from that deduster below is caused to damage.
The present invention perpendicular to direct current flue gas direction using from top to bottom spraying, different from convection current spraying and concurrent spray.Hang down
Air-flow and atomized drop collision are fierce during direct-injection mist, and evaporation effect is good, and nozzle is easily crystallized thing blocking when avoiding convection current spraying
With evaporation effect unobvious during concurrent spray.In addition multiinjector is used, multi-tier arrangement, increases wastewater treatment capacity.Nozzle layer with
The distance between layer prevents atomized drop from excessively concentrating, evaporation is not thorough, or drop splashes wall using gradually big arrangement
On.
Present system is based on the original smoke processing system of factory, and transformation is simple, convenient, and it is few to set up equipment, investment
It is few.Suitable for handling all desulfurization wastewaters in coal-burning power plant, truly realize that waste water zero emission is handled.
Brief description of the drawings
Fig. 1 is a kind of desulfurization wastewater flue spray evaporation processing method of the present invention and system structure diagram.
Fig. 2 is sprayer unit structural representation.
Fig. 3 is flue structure schematic diagram.
(1) flue gas generation device, (2) air heat exchanger, (3) flue, (4) demister, (5) deduster, (6) desulfurization in figure
Tower, (7) chimney, (8) sedimentation basin, (9) water tank, (10) water pump, (11) heat exchanger, (12) sprayer unit, (13) bypass flue
2nd, the flow actuator of (14) bypass flue 2, (15) pipeline flow actuator, (16) flue gas acid dew point instrument, (17) bypass flue 1 flow
Measure actuator, (18) bypass flue 1, (19) controller.
Embodiment
Specific embodiments of the present invention is described in detail below in conjunction with the accompanying drawings.
Referring to Fig. 1, a kind of desulfurization wastewater flue spray evaporation processing method of the present invention and system, including fume treatment system
System, desulfurization wastewater spray evaporation system, bypass flue system, automatic control system.
After flue gas caused by flue gas generation device (1) reclaims used heat by air preheater (2) in smoke processing system,
Evaporation atomized drop in flue (3) before demister (4), vapor and crystal after evaporation with flue gas flow forward, through except
Day with fog (4) removes the droplet that is mingled with and moist crystal in flue gas, in deduster (5) removing fine particulates into neat stress,
Element sulphur is sloughed through desulfurizing tower (6) wet method again, is finally arranged from chimney (7) to air.
The waste water that desulfurizing tower (6) is discharged in desulfurization wastewater spray evaporation system is through sedimentation basin (8) flocculation sediment, supernatant liquor
Overflow extracts water tank (9) waste liquid to heat exchanger (11) by water pump (10) and preheats concentration, after preheating concentration to water tank (9)
Waste liquid it is atomization in flue (3) by nozzle to sprayer unit (12).
Two strands of high temperature bypass flue gases are extracted in bypass flue system from the flue before air preheater (3), by a stock-traders' know-how
Road flue 1 (18) following current uniformly sprays from the bottom to top to spray evaporation region flue (3) bottom；Another strand of flue gas is through bypassing cigarette
Road 2 (13) to heat exchanger (11) preheats concentration desulfurization wastewater, the flue gas after waste heat recovery to spray evaporation region flue (3) both sides
Wall, it is symmetrical to spray.
The flue-gas temperature and acid dew point temperature of deduster entrance are measured in automatic control system by flue gas acid dew point instrument (16)
Degree, real-time Data Transmission to controller (19), judged from control processor (19) and sent to actuator (14,15,17)
Instruction, automatically change the aperture of valve.
As the preferred embodiment of the present invention, described flue (3) is set up flue gas in left and right wall and bottom wall and entered
Mouthful, using being arranged symmetrically；Side gas approach is staggeredly arranged using three layers, and upper and lower two layers using horn-like import, expansion wall
Air-flow protection layer, prevent drop and moist crystal from splashing on wall, adhere to it and cause wall to corrode, centre is using gradually
Miniature import, increase space turbulent extent, accelerate the evaporation of atomized drop；Bottom gas approach using horn-like array arrange,
On the one hand the delay drop skyborne residence time, atomized drop evaporation efficiency is increased, on the other hand prevents big drop and crystallization
Thing drops and causes burn into dust stratification in bottom wall；Specific import number, shape, big I adjust according to actual condition.
As the preferred embodiment of the present invention, atomizer is arranged using 3 × 3 in described sprayer unit (12), both
Three rows to be arranged, often arrange 3 each nozzles, first row and second row distance are L1, second row and the 3rd array pitch from for L2, L2=1~
1.5L1, avoid atomized drop from excessively concentrating, evaporation is not thorough, or drop splashed on wall, nozzle from top to bottom perpendicular to
Flow of flue gas direction is sprayed, and when avoiding convection current or concurrent spray, complicated pipeline configuration has a strong impact on flow of flue gas in flue, tool
The body arrangement number of plies, number of nozzle can adjust according to each factory's operation conditions；The atomizing type of described sprayer unit (12) is pressure
Power atomizing type, both make spreading liquid film forming using pressure and torn by air and produce atomization, or it is acute using high velocity air
Strong impact liquid makes liquid film forming and then the pneumatic nebulization mode being atomized, and its medium can be air or flue gas.
As the preferred embodiment of the present invention, flue gas acid dew point instrument (16) measures in real time in described automatic control system
Deduster porch flue-gas temperature and flue gas acid dew point temperature, once the flue-gas temperature measured in real time is not more than flue gas acid dew point temperature
More than 5 degree of degree, then controller (19), which sends instructions to bypass flue flow actuator (14,17), increases certain aperture, pipeline
Flow actuator (15) reduces certain aperture.
It is complete by above-mentioned description, relevant staff using the above-mentioned desirable embodiment according to the present invention as enlightenment
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property scope is not limited to the content on specification, it is necessary to determines its technical scope according to right.
Claims (8)
1. a kind of desulfurization wastewater flue spray evaporation processing method and system, it is characterised in that：The system mainly includes at flue gas
Reason system, desulfurization wastewater spray evaporation system, bypass flue system, automatic control system；The smoke processing system includes cigarette
Gas generation device (1), air preheater (2), flue (3), demister (4), deduster (5), desulfurizing tower (6), chimney (7)；Institute
Stating desulfurization wastewater spray evaporation system includes sedimentation basin (8), water tank (9), water pump (10), heat exchanger (11), sprayer unit
(12)；The bypass flue system includes bypass flue 1 (18), bypass flue 2 (13)；The automatic control system includes pipeline
Flow actuator (15), bypass flue flow actuator (14,17), flue gas acid dew point instrument (16), controller (19).
2. a kind of desulfurization wastewater flue spray evaporation processing method and system as claimed in claim 1, it is characterised in that：It is described
Smoke processing system in flue gas caused by flue gas generation device (1) by air preheater (2) reclaim used heat after, in demister
(4) evaporation atomized drop in the flue (3) before, the vapor and crystal after evaporation are with flue gas flow forward, through demister (4)
The droplet being mingled with flue gas and moist crystal are removed, fine particulates are removed in deduster (5) into neat stress, then through desulfurization
Tower (6) wet method sloughs sulphur, is finally arranged from chimney (7) to air.
3. a kind of desulfurization wastewater flue spray evaporation processing method and system as claimed in claim 1, it is characterised in that：It is described
Desulfurization wastewater spray evaporation system in desulfurizing tower (6) discharge waste water through sedimentation basin (8) flocculation sediment, supernatant liquor overflow is extremely
Water tank (9), water tank (9) waste liquid to heat exchanger (11) is extracted by water pump (10) and preheats concentration, the waste liquid after preheating concentration
It is atomization in flue (3) by nozzle to sprayer unit (12).
4. a kind of desulfurization wastewater flue spray evaporation processing method and system as claimed in claim 1, it is characterised in that：It is described
Bypass flue system in two strands of high temperature bypass flue gases, a stock-traders' know-how bypass flue 1 are extracted from the flue before air preheater (3)
(18) following current uniformly sprays from the bottom to top to spray evaporation region flue (3) bottom；Another strand of flue gas is through bypass flue 2 (13)
Concentration desulfurization wastewater is preheated to heat exchanger (11), the flue gas after waste heat recovery to spray evaporation region flue (3) two side, symmetrically
Spray.
5. a kind of desulfurization wastewater flue spray evaporation processing method and system as claimed in claim 1, it is characterised in that：It is described
Automatic control system in by flue gas acid dew point instrument (16) measure deduster entrance flue-gas temperature and acid dew-point temperature, in real time
Data transfer is judged from control processor (19) to controller (19) and sends instruction to actuator (14,15,17), certainly
Change the aperture of valve dynamicly.
6. a kind of desulfurization wastewater flue spray evaporation processing method and system as claimed in claim 1, it is characterised in that：It is described
Flue (3) set up gas approach in left and right wall and bottom wall, using being arranged symmetrically；Side gas approach uses three faults
Arrangement is opened, the horn-like import of upper and lower two layers of use, expands wall air-flow protection layer, prevents drop and moist crystal from splashing wall
On face, adhere to it and cause wall to corrode, centre uses gradual shrinkage import, increases space turbulent extent, accelerates atomized drop
Evaporation；Bottom gas approach is arranged using horn-like array, on the one hand postpones the drop skyborne residence time, increases atomization
Drop evaporation efficiency, on the other hand prevent big drop and crystal from dropping in bottom wall and cause burn into dust stratification；Specific umber of feed inlet
Mesh, shape, big I adjust according to actual condition.
7. a kind of desulfurization wastewater flue spray evaporation processing method and system as claimed in claim 1, it is characterised in that：It is described
Sprayer unit (12) in atomizer using 3 × 3 arrangements, both arranged three rows, and often arranged 3 each nozzles, first row and second row away from
From being L1, second row and the 3rd array pitch from for L2, L2=1~1.5L1, atomized drop is avoided excessively to concentrate, evaporation is not thorough, or
Person's drop is splashed on wall, and nozzle is from top to bottom sprayed perpendicular to flow of flue gas direction, when avoiding convection current or concurrent spray,
Complicated pipeline configuration has a strong impact on flow of flue gas in flue, specifically arranges that the number of plies, number of nozzle can be according to each factory's operation conditions
Adjustment；The atomizing type of described sprayer unit (12) is pressure atomization mode, both makes spreading liquid film forming and quilt using pressure
Air tears and produces atomization, or makes liquid film forming and then the pneumatic nebulization side being atomized using high velocity air severe impact liquid
Formula, its medium can be air or flue gas.
8. a kind of desulfurization wastewater flue spray evaporation processing method and system as claimed in claim 1, it is characterised in that：It is described
Automatic control system in flue gas acid dew point instrument (16) measurement deduster porch flue-gas temperature and flue gas acid dew point temperature in real time,
Once the flue-gas temperature measured in real time is not more than more than 5 degree of flue gas acid dew point temperature, then controller (19) sends instructions to bypass
Flue flow actuator (14,17) increases certain aperture, and pipeline flow actuator (15) reduces certain aperture.
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| CN201710845220.8A CN107473482B (en) | 2017-09-19 | 2017-09-19 | Desulfurization waste water flue spraying evaporation treatment system |
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| CN201710845220.8A CN107473482B (en) | 2017-09-19 | 2017-09-19 | Desulfurization waste water flue spraying evaporation treatment system |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107935084A (en) * | 2017-12-13 | 2018-04-20 | 华电电力科学研究院 | A kind of the desulfurization wastewater Zero discharging system and method for the wide load denitration of cooperative achievement |
| CN108059294A (en) * | 2018-01-24 | 2018-05-22 | 福建龙净环保股份有限公司 | For the waste water treatment process system and method for wet desulphurization |
| CN108479253A (en) * | 2018-02-06 | 2018-09-04 | 常州大学 | Wet method removes the integrated system of PM2.5 and heat recovery |
| CN108640393A (en) * | 2018-06-08 | 2018-10-12 | 常州大学 | A kind of desulfurizing waste water processing device and method |
| CN111285423A (en) * | 2020-02-28 | 2020-06-16 | 山西华仁通电力科技有限公司 | System and method for treating desulfurization concentrated tail solution |
| CN112479295A (en) * | 2020-10-26 | 2021-03-12 | 国电龙源电力技术工程有限责任公司 | System and method for evaporating desulfurization wastewater by using waste heat in flue |
| CN113816449A (en) * | 2021-08-25 | 2021-12-21 | 华能国际电力江苏能源开发有限公司南通电厂 | Zero-emission intelligent control system for desulfurization wastewater of thermal power generating unit |
| CN113896267A (en) * | 2021-09-29 | 2022-01-07 | 华能巢湖发电有限责任公司 | Desulfurization wastewater treatment process and treatment device thereof |
| CN114835188A (en) * | 2022-05-24 | 2022-08-02 | 南方电网电力科技股份有限公司 | Desulfurization waste water drying system based on annular adherence flue gas air current |
| CN114933342A (en) * | 2022-06-30 | 2022-08-23 | 安徽钱营孜发电有限公司 | System and method for treating desulfurization wastewater of power plant by using bypass flue |
| CN115490381A (en) * | 2022-08-26 | 2022-12-20 | 华能巢湖发电有限责任公司 | Flue spraying evaporation system and working method thereof |
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| CN115490381A (en) * | 2022-08-26 | 2022-12-20 | 华能巢湖发电有限责任公司 | Flue spraying evaporation system and working method thereof |
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