CN106517628A - Desulfurization-wastewater zero discharging device for coal-fired power plant - Google Patents
Desulfurization-wastewater zero discharging device for coal-fired power plant Download PDFInfo
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- CN106517628A CN106517628A CN201611173628.7A CN201611173628A CN106517628A CN 106517628 A CN106517628 A CN 106517628A CN 201611173628 A CN201611173628 A CN 201611173628A CN 106517628 A CN106517628 A CN 106517628A
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- fired power
- wastewater
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- 239000002351 wastewater Substances 0.000 title claims abstract description 67
- 238000007599 discharging Methods 0.000 title abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 21
- 238000005507 spraying Methods 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 44
- 239000010908 plant waste Substances 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 238000004140 cleaning Methods 0.000 claims description 11
- 239000010802 sludge Substances 0.000 claims description 6
- 238000009833 condensation Methods 0.000 claims description 4
- 230000005494 condensation Effects 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000005374 membrane filtration Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000006477 desulfuration reaction Methods 0.000 abstract description 21
- 230000023556 desulfurization Effects 0.000 abstract description 21
- 239000007788 liquid Substances 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract description 3
- 238000001035 drying Methods 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 11
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 8
- 239000003546 flue gas Substances 0.000 description 8
- 208000028659 discharge Diseases 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000002425 crystallisation Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 239000013505 freshwater Substances 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- 241000370738 Chlorion Species 0.000 description 2
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000003009 desulfurizing effect Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 229910001425 magnesium ion Inorganic materials 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000001694 spray drying Methods 0.000 description 2
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- 241000628997 Flos Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 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
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- 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
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- 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
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)
- Treating Waste Gases (AREA)
Abstract
The invention provides a desulfurization-wastewater zero discharging device for a coal-fired power plant. The desulfurization-wastewater zero discharging device is characterized by comprising a pretreating module, a hot-method concentration module and a flue spraying drying module which are sequentially connected. The pretreating module is used for wastewater solid-liquid separation, the hot-method concentration module is used for wastewater concentration, and the flue spraying drying module is used for collecting dry ash. By means of the desulfurization-wastewater zero discharging device, 100% of desulfurization wastewater can be recycled, the investment is small, the operating cost is low, and the energy-saving and environment-friendly actual requirements are met.
Description
Technical field
The present invention discloses a kind of Desulphurization for Coal-fired Power Plant waste water zero discharge device, can be in industries such as thermal power plants, metallurgy
Apply in desulfurization wastewater discharge.
Background technology
In April, 2015, State Council formally issued《Water prevention and cure of pollution action plan》I.e.《Ten, water》In, clearly propose
Heat-engine plant desulfurized waste water belongs to high pollution waste water, it is necessary to strict control and the requirement of typical industry wastewater zero discharge.Newly-built
Power plant's environmental impact assessment, environmental protection inspection and acceptance etc. are distinctly claimed must carry out wastewater zero discharge, no longer stay any standby floss hole, " forcing "
Environmental protection pressure promotes power plant to must take into the problem of zero-emission.Accelerate to implement depth water saving and " effluent sewage zero-emission " in coal-burning power plant
Inevitable choice is become.
Desulfurization waste water quality is excessively poor and variation water quality is big, containing substantial amounts of sulfate radical, chlorion, calcium ions and magnesium ions and weight
Metal etc., has very strong contaminative to environment.Wherein many heavy metal ion are require in national environmental standard to control first
Pollutant, it is therefore necessary to which desulfurization wastewater is individually processed.
Conventional desulfurization wastewater treatment system adopts " three headers " chemical precipitation method, the main turbidity for lowering waste water, a huge sum of money
Category and a small amount of hardness, reach industrial wastewater secondary discharge standard.Due to not reducing waste water salt content and chlorion, so as to can not
Recycle.
The desulfurization wastewater zero-discharge technology implemented at present, mainly desulfurization wastewater evaporative crystallization technique and utilizes fume afterheat
Process desulfurization wastewater technology.The former is that desulfurization wastewater passes through pretreatment or without pretreatment, subsequently into multi-effect evaporator
(MED) or mechanical compress steam vaporizer (MVR/MVC) is carried out concentrating, crystallized, the fresh water reuse of evaporation, crystal salt are separately located
Put.The latter has two kinds of typical process routes, and the first is that, by desulfurization wastewater pretreatment, bi-membrane method concentration decrement, recovery section is light
Water, then concentrated water is imported in the flue after air preheater, between before deduster, desulfurization wastewater is atomized using atomizer.
It is for second that bypass flue gas before desulfurizing tower, is introduced after deduster, the flue gas and desulfurization wastewater directly contact in the concentration tower is changed
Heat, underflow liquid carry out separation of solid and liquid by filter press.
Evaporative crystallization method can reclaim industrial crystallization salt or solid waste from waste water, but invest huge, energy consumption and operation
It is costly, limit the popularization of the technology.
, using the first thinking of technology using double film concentration technologies, impact resistance is poor, to entering film water matter for fume afterheat
Have high demands, processing requirement is very strict, while periodic cleaning membrane module is wanted, to avoid film surface contamination and fouling obstruction；Second
Than more prominent, maintenance workload is big for the problems such as kind of thinking equipment corrosion, liquid phase are blocked.
The content of the invention
It is an object of the invention to provide a kind of Desulphurization for Coal-fired Power Plant waste water zero discharge device, the device can 100% recovery profit
With desulfurization wastewater, small investment, operating cost are low, meet the actual requirement of energy-conserving and environment-protective.
In order to achieve the above object, the invention provides a kind of Desulphurization for Coal-fired Power Plant waste water zero discharge device, its feature exists
In including the pretreatment module being sequentially connected, hot method concentration module and flue spray drying module.
Preferably, described pretreatment module includes that the wastewater equalization pond being sequentially connected, the first reaction tank, second react
Pond, circulatory pool, tube type filter membrance filter and water tank with strainer.
It is highly preferred that described tube type filter membrance filter is connected to carry out chemistry to tube type filter membrance filter
The cleaning water tank of cleaning, cleaning water tank connecting pipe decline membrane filtration device.
It is highly preferred that the bottom of described circulatory pool is connected to carry out the dense of sludge condensation to the bottom waste water of circulatory pool
Contracting pond, the bottom connection dewaterer of concentration basin, the top connection wastewater equalization pond of concentration basin.
It is highly preferred that described hot method concentration module includes the Multi-effect concentration evaporimeter being connected with water tank with strainer, multiple-effect is dense
Contracting evaporimeter connection density wastewater pond.
It is highly preferred that described flue is spray-dried module includes the spraying system in flue, the spray of spraying system
Mouth is arranged in the flue between air preheater and electric cleaner, nozzle connection density wastewater pond.
It is highly preferred that the primary steam of described Multi-effect concentration evaporimeter is produced from unit flue residue heat Jing two-phases heat exchanger
Raw steam, low-quality steam or exhaust steam, or station-service electrical heating, make use of residual heat of electric power plant used heat to greatest extent, realize
Depth energy-conservation.
The invention provides Desulphurization for Coal-fired Power Plant waste water zero discharge device, this device can be divided into three big modules：Pretreatment+heat
Method concentration+flue is spray-dried.Pretreatment module carries out the removing heavy metals of waste water, softening, except turbidity and except hardness, hot method concentration
Module carries out the concentration of waste water and the reuse of fresh water, and flue is spray-dried module and carries out waste water spray drying and collect dry ash.Should
Device energy 100% recycles desulfurization wastewater, and small investment, operating cost are low, meet the actual requirement of energy-conserving and environment-protective.
Compared with prior art, the invention has the beneficial effects as follows：
1st, the present invention can solve the intractable problem of desulfurization wastewater；
2nd, the present invention can solve the problems, such as desulfurization wastewater zero-emission high cost, construction investment, operating cost and occupation of land face
Product is only the 1/3-1/4 of evaporative crystallization technique.
3rd, the present invention makes the final zero-emission of desulfurization wastewater, and 100% recycles, and saves power plant water, meets current energy-conservation
Reduction of discharging policy.
Description of the drawings
The process flow diagram of Fig. 1 Desulphurization for Coal-fired Power Plant waste water zero discharge devices
Wherein：1 wastewater equalization pond, 2 first reaction tanks, 3 second reaction tanks, 4 circulatory pools, 5 tube type filter membrance filters,
6 water tank with strainer, 7 water tanks, 8 concentration basins, 9 dewaterers, 10 Multi-effect concentration evaporimeters, 11 density wastewater ponds, 12 nozzles.
Specific embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate the present invention
Rather than limit the scope of the present invention.In addition, it is to be understood that after the content for having read instruction of the present invention, people in the art
Member can be made various changes or modifications to the present invention, and these equivalent form of values equally fall within the application appended claims and limited
Scope.
Embodiment
As shown in figure 1, be Desulphurization for Coal-fired Power Plant waste water zero discharge device, including the pretreatment module being sequentially connected, hot method
Concentration module and flue are spray-dried module.
Wastewater equalization pond 1 that pretreatment module includes being sequentially connected, the first reaction tank 2, the second reaction tank 3, circulatory pool 4,
Tube type filter membrance filter 5 and water tank with strainer 6.Described tube type filter membrance filter 5 is connected to tube type filter membrance
Filter 5 carries out the cleaning water tank 7 of Chemical cleaning, and cleaning 7 connecting tube of water tank declines membrane filtration device 5.Described circulation
The bottom in pond 4 is connected to the concentration basin 8 that sludge condensation is carried out to the bottom waste water of circulatory pool 4, and the bottom connection of concentration basin 8 is de-
Water dispenser 9, the top connection wastewater equalization pond 1 of concentration basin 8.Pretreatment module adopts tube type filter membrance filter 5, replaces tradition
Clarification filtration technique, reduces the consumption of chemical reagent, improves pretreating effect, reduces and takes up an area, and reduces operating cost.
Hot method concentration module includes the Multi-effect concentration evaporimeter 10 being connected with water tank with strainer 6, and Multi-effect concentration evaporimeter 10 connects
Connect density wastewater pond 11.Flue is spray-dried spraying system of the module in flue, and the nozzle 12 of spraying system is arranged in sky in advance
In flue between device and electric cleaner, the connection density wastewater of nozzle 12 pond 11.Described pretreatment module, hot method concentration module and
Flue is spray-dried module and carries out Automatic Control by PLC control system, can be according to the load variations of waste water, boiler during use
Flue-gas temperature and set different parameters, make up to optimal running effect.
During use, the desulfurization wastewater that Limestone-gypsum Wet Flue Gas Desulfurization Process system is discharged initially enters wastewater equalization pond 1, waste water
After quenched tune amount, Jing pumps are lifted and sequentially enter the first reaction tank 2 and the second reaction tank 3.Calcium oxide is added in the first reaction tank 2
Medicament, in the second reaction tank 3 adds sodium carbonate and sodium hydroxide medicament, makes the Ca in waste water2+, Mg2+, heavy metal ion etc.
Generate insoluble matter.Subsequently waste water enters circulatory pool 4, and Jing pumps are lifted into tube type filter membrance filter 5, using big flow cross-flow
Filter type carries out separation of solid and liquid, and the water purification isolated enters water tank with strainer 6.A period of time, tube type filter membrance mistake are run in addition
The tube type filter membrance of filter device 5 need to carry out Chemical cleaning using cleaning 7 acid adding of water tank, alkali and oxidant medicament.With solid content
Raising, circulatory pool 4 need to quantitatively discharge bottom waste water and carry out sludge condensation into concentration basin 8, and the sludge after concentration is by sludge pump
Sending into dewaterer 9 carries out processed, and supernatant is back to wastewater equalization pond, and mud cake can be transported outward or enter Power Plant Ash slag bath.
Its pH value is adjusted to into neutrality to the waste water salt adding acid in water tank with strainer 6, Multi-effect concentration is lifted into by pump then
Evaporimeter 10.The primary steam of Multi-effect concentration evaporimeter 10 is from unit to the low-grade steam after electric duster ash bucket heating.
And the fresh water that enrichment facility is produced can be back to power plant's industrial water system.Multi-effect concentration evaporimeter is by the multiple steamings being serially connected
Device composition is sent out, primary steam is introduced into first evaporator, heat waste water therein, make low several of waste water producing ratio vapor (steam) temperature
Equivalent evaporation.The steam of generation is introduced into the second effect as heating steam, makes the waste water of the second effect with lower than the first effect
Temperature is evaporated.This process repeats to last effect always.First effect condensed water is returned at thermal source, and remaining each effect is coagulated water and collects conjunction
And after as fresh water export.Meanwhile, through being concentrated to most end effect successively by the first effect, concentrate collects density wastewater pond to waste water
11。
Quickly and completely vapour is injected in flue by nozzle 12 after the density wastewater in density wastewater pond 11 and compressed air mixing
Change (suitably reduce flue-gas temperature, but do not affect back-end ductwork equipment runnability).Cigarette after air preheater, before electric cleaner
Desulfurization wastewater after road waste heat evaporation and concentration, appropriate increases smoke moisture, reduces flue-gas temperature, improves dedusting effect
Rate.Water vapour is entered after back-end ductwork with flue gas simultaneously, eventually serves as the moisturizing of desulfurizing tower；Dust one in solids and flue gas
Rise and trapped by deduster, carry out dry ash comprehensive utilization.Realize waste water 100% after flue residue heat is utilized and concentrated and be back to desulfurization
System.
Claims (7)
1. a kind of Desulphurization for Coal-fired Power Plant waste water zero discharge device, it is characterised in that including the pretreatment module being sequentially connected, hot method
Concentration module and flue are spray-dried module.
2. Desulphurization for Coal-fired Power Plant waste water zero discharge device as claimed in claim 1, it is characterised in that described pretreatment module
Including the wastewater equalization pond (1), the first reaction tank (2), the second reaction tank (3), circulatory pool (4), tube type filter membrance that are sequentially connected
Filter (5) and water tank with strainer (6).
3. Desulphurization for Coal-fired Power Plant waste water zero discharge device as claimed in claim 2, it is characterised in that described tube type filter membrance
Filter (5) is connected to the cleaning water tank (7) that Chemical cleaning is carried out to tube type filter membrance filter (5), cleans water tank
(7) connecting tube declines membrane filtration device (5).
4. Desulphurization for Coal-fired Power Plant waste water zero discharge device as claimed in claim 2, it is characterised in that described circulatory pool (4)
Bottom be connected to carry out the bottom waste water of circulatory pool (4) concentration basin (8) of sludge condensation, the bottom of concentration basin (8) connects
Connect dewaterer (9), top connection wastewater equalization pond (1) of concentration basin (8).
5. Desulphurization for Coal-fired Power Plant waste water zero discharge device as claimed in claim 2, it is characterised in that described hot method enrichment mode
Block includes the Multi-effect concentration evaporimeter (10) being connected with water tank with strainer (6), Multi-effect concentration evaporimeter (10) connection density wastewater pond
(11)。
6. Desulphurization for Coal-fired Power Plant waste water zero discharge device as claimed in claim 5, it is characterised in that described flue spraying is dry
Dry module includes the spraying system being located at, and the nozzle (12) of spraying system is arranged in the flue between air preheater and electric cleaner
It is interior, nozzle (12) connection density wastewater pond (11).
7. Desulphurization for Coal-fired Power Plant waste water zero discharge device as claimed in claim 5, it is characterised in that described Multi-effect concentration steams
Steam, low-quality steam or exhaust steam that the primary steam of device (10) is produced from unit flue residue heat Jing two-phases heat exchanger are sent out, or
Person's station-service electrical heating.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621070975 | 2016-09-21 | ||
| CN2016210709752 | 2016-09-21 |
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| Publication Number | Publication Date |
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| CN106517628A true CN106517628A (en) | 2017-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621384685.5U Active CN206940653U (en) | 2016-09-21 | 2016-12-16 | Desulphurization for Coal-fired Power Plant waste water zero discharge device |
| CN201611173628.7A Pending CN106517628A (en) | 2016-09-21 | 2016-12-16 | Desulfurization-wastewater zero discharging device for coal-fired power plant |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621384685.5U Active CN206940653U (en) | 2016-09-21 | 2016-12-16 | Desulphurization for Coal-fired Power Plant waste water zero discharge device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107337245A (en) * | 2017-08-08 | 2017-11-10 | 北京尤科恩环保工程有限公司 | A kind of spraying system that desulfurization wastewater is concentrated using fume afterheat |
| CN107697967A (en) * | 2017-10-11 | 2018-02-16 | 江苏中建材环保研究院有限公司 | A kind of Desulphurization for Coal-fired Power Plant wastewater zero discharge system and method |
| CN107857321A (en) * | 2017-11-07 | 2018-03-30 | 西安协力动力科技有限公司 | A kind of technique for Waste Water From Fire Power Plant zero discharge treatment |
| CN109485114A (en) * | 2019-01-11 | 2019-03-19 | 众阿美科福斯特惠勒工程有限公司 | A kind of processing unit and method of catalytic cracking unit desulfurization wastewater and flue gas thermal coupling |
| CN110342714A (en) * | 2019-07-04 | 2019-10-18 | 华电电力科学研究院有限公司 | A kind of coal-burning power plant's process without drainage of waste water system and method based on semi-dry desulphurization technology |
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| CN109485114A (en) * | 2019-01-11 | 2019-03-19 | 众阿美科福斯特惠勒工程有限公司 | A kind of processing unit and method of catalytic cracking unit desulfurization wastewater and flue gas thermal coupling |
| CN110342714A (en) * | 2019-07-04 | 2019-10-18 | 华电电力科学研究院有限公司 | A kind of coal-burning power plant's process without drainage of waste water system and method based on semi-dry desulphurization technology |
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