CN108383313A - A kind of MVR concentration cooperates with treatment process and system with swirling flow atomizing - Google Patents
A kind of MVR concentration cooperates with treatment process and system with swirling flow atomizing Download PDFInfo
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- CN108383313A CN108383313A CN201810443170.5A CN201810443170A CN108383313A CN 108383313 A CN108383313 A CN 108383313A CN 201810443170 A CN201810443170 A CN 201810443170A CN 108383313 A CN108383313 A CN 108383313A
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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
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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
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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
- C02F1/16—Treatment of water, waste water, or sewage by heating by distillation or evaporation using waste heat from other processes
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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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- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The invention discloses a kind of MVR concentrations, and treatment process and system are cooperateed with swirling flow atomizing, which is combined MVR evaporation techniques for handling desulfurization wastewater with bypass flue swirling flow atomizing evaporation drying method.Desulfurization wastewater is concentrated after pretreatment and heat exchange step into MVR vapo(u)rization systems, desulfurization wastewater after concentration enters the boiler bypass flue after air preheater after being atomized by swirling flow atomizing method, using boiler hot flue gas by waste water evaporation drying, salt after waste water is dried in water eventually forms powdered product, and desciccate enters electric precipitator with flue gas and handles.The present invention can effectively reduce energy consumption, solve the process problem of salt in desulfurization wastewater zero-emission.
Description
Technical field
The present invention relates to a kind of waste water treatment process and systems, and in particular to a kind of MVR concentration cooperates with place with swirling flow atomizing
Science and engineering skill and system.
Background technology
Lime stone of the impurity contained in desulfurization wastewater from flue gas and desulfurization includes mainly suspended matter, oversaturated
Sulphite, sulfate and heavy metal, wherein being much the first pollutant for requiring control in national environmental standard.Due to
The particularity of water quality, desulfurization wastewater intractability are larger.
Currently, the treatment technology route of desulfurization wastewater zero-emission is more, by being concluded to its processing procedure, mainly there is embrane method
Processing, evaporative crystallization processing.Desulfurization wastewater is handled using embrane method since calcium ions and magnesium ions content is high and needs to pre-process, at this method
The desulfurization wastewater medicament expense of reason is of high cost, sludge quantity is big.It is handled using evaporative crystallization, if leading portion uses pretreatment, likewise, should
Method medicament expense is of high cost, sludge quantity is big；If leading portion does not use pretreatment, frequent, cleaning agent is cleaned after crystallizing evaporator operation
Fei Gao, and the market of the salt of evaporative crystallization generation is also a great problem.So for existing processing method, medicament is reduced
It adds, the generation of sludge quantity, the outlet for solving salt is the technical issues of we to be thought deeply and be solved.
Invention content
In view of the deficiencies of the prior art, the purpose of the present invention is to provide a kind of MVR concentrations, and processing is cooperateed with swirling flow atomizing
Technique, the technique are combined MVR evaporation techniques for handling desulfurization wastewater, Neng Gouyou with bypass flue swirling flow atomizing evaporation drying
Effect solves the process problem of salt in desulfurization wastewater zero-emission；Further, which does not need sofening treatment, reduces at softening
The chemical agent of reason adds, and there is no chemical sludge and solid salt treatment problems, do not have secondary pollution risk.Further, the work
Skill can also effectively reduce energy consumption.
Second object of the present invention is to provide for a kind of MVR concentration and swirling flow atomizing coprocessing system, Neng Gouyou
Effect solves the process problem of salt in desulfurization wastewater zero-emission；Further, which does not need sofening treatment, reduces at softening
The chemical agent of reason adds, and there is no chemical sludge and solid salt treatment problems, do not have secondary pollution risk.Further, this is
System can also effectively reduce energy consumption.
Realize that first purpose of the present invention can reach by adopting the following technical scheme that：
A kind of MVR concentration cooperates with treatment process with swirling flow atomizing, which is characterized in that including:
Heat exchange step：Waste water is sent into heat exchanger and carries out heat exchange processing；
Concentration step：It heat exchange step treated waste water will be passed through will be sent into MVR vapo(u)rization systems and carry out concentration；Its
In, MVR vapo(u)rization systems include heater, steam-water separator and the circulating pump being disposed there between；The specific mistake of concentration
Cheng Wei：It heat exchange step treated waste water will be passed through will be sent into steam-water separator and heat, waste water is then sent into carbonated drink point
From being evaporated in device, primary dope, indirect steam and concentrate are obtained；Primary dope is between heater and steam-water separator
It circulates；
Swirling flow atomizing step：The concentrate that concentration step is obtained passes through swirling flow atomizing, is atomized as average diameter 20-50
μm fine slurry droplet, fine slurry droplet is contacted with boiler hot flue gas then, during gas-liquid contact, makes moisture quilt
Rapid evaporation drying, obtains desciccate.
Further, further include pre-treatment step before heat exchange step, detailed process is：Waste water first passes through preformed precipitate pond,
Dosing coagulant, flocculant get off the suspended matter flocculation sediment in waste water, and then the sludge at collecting pit bottom is pumped by sludge pump
It is sent to dewaterer dehydration；Enter water inlet buffer tank by precipitating clear desulfurization wastewater gravity flow, caustic soda is then added and adjusts desulfurization
The pH value of waste water, is sent into heat exchanger under alkaline condition.
Further, in heat exchange step, heat exchanger includes First Heat Exchanger and the second heat exchanger；Desulfurization wastewater passes through promotion
Pump pumping, divides two-way to enter First Heat Exchanger and the second heat exchanger, converges after being exchanged heat respectively, be then sent into them together
Into in heater.
Further, in concentration step, by indirect steam be sent into vapour compression machine in, vapour compression machine to indirect steam into
Row compression so that the pressure and temperature of indirect steam improve, heat content increases, and obtain high temperature indirect steam, then that high temperature is secondary
Steam inputs the vapour source as heat exchange in heater；The condensed water generated in heater is transported in First Heat Exchanger and is made
For the heating water source of heat exchange.
Further, in swirling flow atomizing step, concentrate is first transported to the heating in the second heat exchanger as heat exchange
Then concentrate after heat exchange is carried out swirling flow atomizing by water source again.
Realize that second object of the present invention can reach by adopting the following technical scheme that：
A kind of MVR concentration and swirling flow atomizing coprocessing system, which is characterized in that including heat exchanger, MVR vapo(u)rization systems and
Boiler bypass flue system；
MVR vapo(u)rization systems include heater, steam-water separator and the circulating pump being disposed there between；
The boiler bypass flue system includes that air preheater, boiler bypass flue, electricity with swirling flow atomizing room remove
Dirt device；The air inlet of the air preheater connects boiler smoke, and gas outlet is connect with the air inlet of boiler bypass flue, institute
The gas outlet for stating boiler bypass flue is connect with the air inlet of the electric precipitator；The water inlet of the swirling flow atomizing room with it is described
The concentrated solution outlet of steam-water separator connects；
The water inlet of the heat exchanger connects waste water, and water outlet is connect with the water inlet of the heater.
Further, further include sedimentation basin, intake buffer tank, elevator pump, the water inlet of the sedimentation basin connects waste water,
Water outlet connect with the water inlet of the water inlet buffer tank, and the water outlet of the buffer tank of intaking passes through elevator pump and heat exchanger
Water inlet connects.
Further, the heat exchanger includes First Heat Exchanger and the second heat exchanger；The First Heat Exchanger and second changes
The water inlet of hot device is separately connected waste water, their water outlet is connect with the water inlet of heater respectively.
Further, further include vapour compression machine, condensation water tank and condensate pump；The steam of the vapour compression machine inputs
Mouth is connect with the indirect steam delivery outlet of the steam-water separator, the steam outlet of the vapour compression machine and the heater
Vapour source input port connection；The water inlet of condensation water tank is connect with the condensation water output of the heater, and water outlet is logical
The condensate pump is crossed to connect with the heating water source input port of the First Heat Exchanger.
Further, further include concentrate pump, concentration liquid case and atomizer pump；The water inlet of the concentrate pump and the vapour
The concentrate delivery outlet of separator connects, and water outlet is connect with the heating water source input port of second heat exchanger；It is described
The heating water source delivery outlet of second heat exchanger is connect with the water inlet of the concentration liquid case, and the water outlet of the concentration liquid case passes through
The atomizer pump is connect with the water inlet of the swirling flow atomizing room.
Further, the boiler bypass flue system further includes economizer, desulfurizing tower and chimney；The economizer into
Gas port connects boiler smoke, and gas outlet is connect with the air inlet of the air preheater；The air inlet of the desulfurizing tower and institute
The gas outlet connection of electric precipitator is stated, gas outlet is connect with the air inlet of the chimney.
Further, it is additionally provided with ultrasonic wave vortex atomizing nozzle in the swirling flow atomizing room.
Further, the air inlet of the air preheater is connect with the air inlet of boiler bypass flue.
The beneficial effects of the present invention are：
1, technique and system of the invention, which are combined MVR evaporation techniques with bypass flue swirling flow atomizing evaporation drying method, is used for
Handle desulfurization wastewater.Desulfurization wastewater enters MVR evaporators after preliminary treatment and concentrates, and the desulfurization wastewater after concentration passes through eddy flow
The bypass flue entered after atomization atomization after air preheater uses boiler hot flue gas by waste water evaporation drying.Waste water is dried
The salt in water eventually forms powdered product afterwards.Desciccate enters deduster processing with flue gas.It is concentrated by evaporation using MVR
With the process desulfurization wastewater that boiler hot flue gas evaporation drying is combined, the treatment process for desulfurization wastewater zero-emission provides
A kind of new direction and resolving ideas, the processing for salt in desulfurization wastewater provide direction.
2, pretreatment system of the invention only needs dosing coagulant, flocculant flocculation sediment suspended matter, need not soften
Processing, the chemical agent for reducing sofening treatment add, and there is no chemical sludge and solid salt treatment problems, do not have secondary pollution wind
Danger.There is no finished product salt marketing problem simultaneously yet.
3, after the present invention is first concentrated desulfurization wastewater using MVR evaporators, then using the concentration of boiler hot flue gas evaporation drying
Desulfurization wastewater.MVR evaporators are compressed using the indirect steam that vapour compression machine generates evaporation, and pressure, temperature improve, to steam
Hair provides heat, reduces the use of live steam, and do not need technique water cooling；Evaporation drying is using boiler smoke
Waste heat desulfurization wastewater is dried, reduce the operating cost of system.
4, MVR vapo(u)rization systems of the invention include heater, steam-water separator and the circulating pump being disposed there between, and are adopted
With forced circulation pattern, heater only exists heat exchange without being concentrated by evaporation, and can avoid heating surface and forms fouling or crystallization, resistive connection
Dirty ability is strong, and heat transfer coefficient is big.MVR evaporators use forced circulation pattern, and heater pressure is high, after desulfurization wastewater temperature increases
Into the pressure reduction of steam-water separator, part is evaporated, and is evaporated in steam-water separator, and heater only exists heat exchange without evaporating
Concentration can avoid heating surface and form fouling or crystallization, substantially reduces the possibility of evaporation process fouling, and enhanced fouling resistance is strong, passes
Hot coefficient is big.And desulfurization wastewater is recycled using additionaling power, with high speed by heating tube, reduces little particle in heating tube
Stop, avoid desulfurization wastewater in the possibility of heater fouling.The heat exchanger tube of heater uses special pipe, heat exchange area to increase
Add, number of heat exchange tubes can be reduced, while enhanced fouling resistance is more preferable.
5, boiler bypass flue system is the bypass flue built in boiler controller system, and do not influence boiler controller system stablizes life
Production.In addition, boiler bypass flue system does not influence boiler efficiency using the flue gas after air preheater.When necessary, due to boiler
Load is too low, using the high-temperature flue gas before air preheater, ensures that waste water is evaporated completely.
6, present invention process can be used a variety of method of operation safeguards systems and run steadily in the long term.When：Desulfurization wastewater passes through
Enter bypass flue swirling flow atomizing evaporation drying after the concentration of MVR evaporators；Second is that：Desulfurization wastewater is directly entered bypass flue eddy flow
Atomization and vaporization is dried；Third,：Two-way, the mating 1 set of bypass cigarette of every unit is arranged in bypass flue swirling flow atomizing evaporation drying system
Road swirling flow atomizing evaporation drying equipment, when can avoid influencing excessive or a certain compressor emergency shutdown to single unit efficiency, system cannot
It puts into operation, and urgent means is set per complete equipment, when boiler load is too low, using the high-temperature flue gas before air preheater, protect
Card waste water is evaporated completely.
Description of the drawings
Fig. 1 is the structure diagram of MVR of the present invention concentration and swirling flow atomizing coprocessing system.
Wherein, 11, First Heat Exchanger；12, the second heat exchanger；21, heater；22, steam-water separator；23, circulating pump；
31, air preheater；32, swirling flow atomizing room；33, electric precipitator；34, economizer；35, desulfurizing tower；36, chimney；41, water inlet is slow
Deposit tank；42, elevator pump；51, vapour compression machine；52, condensation water tank；53, condensate pump；61, concentrate pump；62, liquid case is concentrated；
63, atomizer pump.
Specific embodiment mode
In the following, in conjunction with attached drawing and specific embodiment mode, the present invention is described further, it should be noted that
Under the premise of not colliding, new reality can be formed between various embodiments described below or between each technical characteristic in any combination
Apply example.In addition to specified otherwise, employed in the present embodiment to material and equipment be commercially available.
Embodiment 1：
Referring to Fig.1, the MVR concentrations of the present embodiment and swirling flow atomizing coprocessing system, including heat exchanger, MVR evaporation system
System and boiler bypass flue system；
MVR vapo(u)rization systems include heater 21, steam-water separator 22 and the circulating pump 23 being disposed there between；
Boiler bypass flue system includes that air preheater 31, boiler bypass flue, electricity with swirling flow atomizing room 32 remove
Dirt device 33；The air inlet of air preheater 31 connects boiler smoke, and gas outlet is connect with the air inlet of boiler bypass flue, pot
The gas outlet of stove bypass flue is connect with the air inlet of electric precipitator 33；The water inlet of swirling flow atomizing room 32 and steam-water separator 22
Concentrated solution outlet connection；
The water inlet of heat exchanger connects waste water, and water outlet is connect with the water inlet of heater 21.
Further, further include sedimentation basin (not shown), water inlet buffer tank 41, elevator pump 42, the water inlet of sedimentation basin
Mouth connection waste water, water outlet are connect with the water inlet of water inlet buffer tank 41, and the water outlet of water inlet buffer tank 41 passes through elevator pump
42 connect with the water inlet of heat exchanger.
Further, heat exchanger includes First Heat Exchanger 11 and the second heat exchanger 12；First Heat Exchanger 11 and second exchanges heat
The water inlet of device 12 is separately connected waste water, their water outlet is connect with the water inlet of heater 21 respectively.
Further, further include vapour compression machine 51, condensation water tank 52 and condensate pump 53；The steam of vapour compression machine 51
Input port is connect with the indirect steam delivery outlet of steam-water separator 22, steam outlet and the heater 21 of vapour compression machine 51
Vapour source input port connects；The water inlet of condensation water tank 52 is connect with the condensation water output of heater 21, and water outlet passes through
Condensate pump 53 is connect with the heating water source input port of First Heat Exchanger 11.
Further, further include concentrate pump 61, concentration liquid case 62 and atomizer pump 63；The water inlet and vapour of concentrate pump 61
The concentrate delivery outlet of separator 22 connects, and water outlet is connect with the heating water source input port of the second heat exchanger 12；Second
The heating water source delivery outlet of heat exchanger 12 is connect with the water inlet of concentration liquid case 62, and the water outlet of concentration liquid case 62 passes through atomizer pump
63 connect with the water inlet of swirling flow atomizing room 32.
Further, boiler bypass flue system further includes economizer 34, desulfurizing tower 35 and chimney 36；Economizer 34 into
Gas port connects boiler smoke, and gas outlet is connect with the air inlet of air preheater 31；The air inlet and electric precipitation of desulfurizing tower 35
The gas outlet of device 33 connects, and gas outlet is connect with the air inlet of chimney 36.
Further, it is additionally provided with ultrasonic wave vortex atomizing nozzle in swirling flow atomizing room 32.Ultrasonic wave vortex atomizing nozzle with
The swirling flow atomizing coalescence aerodynamic field constructed in bypass flue is combined, and keeps desulfurization wastewater atomizing effect more preferable.It is taken in flue gas simultaneously
Hard hit and turbulent closure scheme occur for heavy metal and suspended particle in the fine dust and waste water of band, and rapid coalescence is at big
Particle.The specific resistance of bulky grain is substantially reduced, and is more easy to be captured by electric precipitator 33, is realized the high-effective dust-removing of subparticle.
Further, the air inlet of air preheater 31 is connect with the air inlet of boiler bypass flue, as the tight of equipment
Anxious means, when boiler load is too low, using the high-temperature flue gas before air preheater, guarantee waste water is evaporated completely.
MVR concentrations described in the present embodiment cooperate with treatment process with swirling flow atomizing, including:
Pre-treatment step, detailed process are：Waste water first passes through preformed precipitate pond, and dosing coagulant, flocculant will be in waste water
Suspended matter flocculation sediment gets off, and then the sludge at collecting pit bottom is pumped into dewaterer dehydration by sludge pump；It is clarified by precipitation
Desulfurization wastewater gravity flow enter water inlet buffer tank, then be added caustic soda adjust desulfurization wastewater pH value, obtain alkaline waste water；
Heat exchange step：Alkaline waste water is sent into heat exchanger and carries out heat exchange processing；Heat exchanger includes First Heat Exchanger and
Two heat exchangers；Desulfurization wastewater is pumped by elevator pump, is divided two-way to enter First Heat Exchanger and the second heat exchanger, is exchanged heat respectively
After converge, then they are sent into together into heater；
Concentration step：It heat exchange step treated waste water will be passed through will be sent into MVR vapo(u)rization systems and carry out concentration；Its
In, MVR vapo(u)rization systems include heater, steam-water separator and the circulating pump being disposed there between；The specific mistake of concentration
Cheng Wei：It heat exchange step treated waste water will be passed through will be sent into heater and heat, waste water is then sent into steam-water separator
In be evaporated, obtain primary dope, indirect steam and concentrate；Primary dope recycles between heater and steam-water separator
Flowing；
Swirling flow atomizing step：The concentrate that concentration step is obtained passes through swirling flow atomizing, is atomized as average diameter 20-50
μm fine slurry droplet, fine slurry droplet is contacted with boiler hot flue gas then, during gas-liquid contact, makes moisture quilt
Rapid evaporation drying, obtains desciccate.Wherein, the salt in waste water eventually forms powdered product.
Further, in concentration step, by indirect steam be sent into vapour compression machine in, vapour compression machine to indirect steam into
Row compression so that the pressure and temperature of indirect steam improve, heat content increases, and obtain high temperature indirect steam, then that high temperature is secondary
Steam inputs the vapour source as heat exchange in heater；The condensed water generated in heater is transported in First Heat Exchanger and is made
For the heating water source of heat exchange.
Indirect steam recycling is that desulfurization wastewater heats by vapour compression machine, reduces the use of live steam, significantly
Reduce the operating cost of system.Desulfurization wastewater heat exchange in the condensed water and First Heat Exchanger that are generated in heater, recycling are surplus
Remaining thermal energy greatly reduces the energy consumption of system.
Further, in swirling flow atomizing step, concentrate is first transported to the heating in the second heat exchanger as heat exchange
Then concentrate after heat exchange is carried out swirling flow atomizing by water source again.
Desulfurization wastewater heat exchange in concentrate and the second heat exchanger, recycles thermal energy, greatly reduces the energy consumption of system.
Desulfurization waste water quality fluctuation is larger, and general desulfurization wastewater salt content is higher, and especially hardness is high, chlorine root is high, desulfurization
Waste water quality major parameter such as the following table 1：
Table 1
| Serial number | Project | Unit | Numerical value | Remarks |
| 1 | Ca2+ | ppm | 800-2500 | |
| 2 | Mg2+ | ppm | 1000-11000 | |
| 3 | SO4 2- | ppm | 6000-20000 | |
| 4 | Cl- | ppm | 6000-20000 | |
| 5 | Na+ | ppm | 1000-3000 |
After MVR described in embodiment 1 is concentrated and is cooperateed with treatment process to handle desulfurization wastewater with swirling flow atomizing, producing water water quality
Such as the following table 2：
Table 2
| Serial number | Project | Unit | Numerical value | Remarks |
| 1 | Ca2+ | ppm | ≤20 | |
| 2 | Mg2+ | ppm | ≤20 | |
| 3 | SO4 2- | ppm | ≤100 | |
| 4 | Cl- | ppm | ≤100 | |
| 5 | Na+ | ppm | ≤100 |
Embodiment 2：
The characteristics of the present embodiment is：When desulfurization wastewater water is less, desulfurization wastewater is added and burns from flowing into water buffer tank
Alkali adjusts pH value, and desulfurization wastewater can be pumped directly into the bypass after air preheater by waste water atomizer pump under alkaline condition
Dry desulfurization wastewater in the swirling flow atomizing room of flue.
Embodiment 3：
The characteristics of the present embodiment is：When boiler load is too low, pot is transported to using the high-temperature flue gas before air preheater
Stove bypass flue system ensures that waste water is evaporated completely to provide heat by the waste water of swirling flow atomizing.
The above embodiment is merely a preferred embodiment of the present invention mode, cannot limit the model protected of the present invention with this
It encloses, the variation and replacement of any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to the present invention
Range claimed.
Claims (10)
1. a kind of MVR concentrations cooperate with treatment process with swirling flow atomizing, which is characterized in that including：
Heat exchange step：Waste water is sent into heat exchanger and carries out heat exchange processing；
Concentration step：It heat exchange step treated waste water will be passed through will be sent into MVR vapo(u)rization systems and carry out concentration；Wherein, MVR
Vapo(u)rization system includes heater, steam-water separator and the circulating pump being disposed there between；The detailed process of concentration is：It will
Be sent into steam-water separator and heated by heat exchange step treated waste water, then by waste water be sent into steam-water separator into
Row evaporation, obtains primary dope, indirect steam and concentrate；Primary dope recycle stream between heater and steam-water separator
It is dynamic；
Swirling flow atomizing step：The concentrate that concentration step is obtained passes through swirling flow atomizing, is atomized as 20-50 μm of average diameter
Then fine slurry droplet is contacted with boiler hot flue gas, during gas-liquid contact, keeps moisture rapid by fine slurry droplet
Evaporation drying obtains desciccate.
2. MVR concentrations as described in claim 1 cooperate with treatment process with swirling flow atomizing, it is characterised in that：Before heat exchange step
Further include pre-treatment step, detailed process is：Waste water first passes through preformed precipitate pond, and dosing coagulant, flocculant will be outstanding in waste water
Float flocculation sediment gets off, and then the sludge at collecting pit bottom is pumped into dewaterer dehydration by sludge pump；It is clear by precipitating
Desulfurization wastewater gravity flow enters water inlet buffer tank, and the pH value that caustic soda adjusts desulfurization wastewater is then added, is sent into changes under alkaline condition
Hot device.
3. MVR concentrations as described in claim 1 cooperate with treatment process with swirling flow atomizing, it is characterised in that：In heat exchange step, change
Hot device includes First Heat Exchanger and the second heat exchanger；Desulfurization wastewater is pumped by elevator pump, divide two-way enter First Heat Exchanger and
Second heat exchanger converges after being exchanged heat respectively, and then they are sent into together into heater.
4. MVR concentrations as claimed in claim 3 cooperate with treatment process with swirling flow atomizing, it is characterised in that：It, will in concentration step
Indirect steam is sent into vapour compression machine, and vapour compression machine compresses indirect steam so that the pressure and temperature of indirect steam
Degree improves, heat content increases, and obtains high temperature indirect steam, then high temperature indirect steam is inputted to the steaming in heater as heat exchange
Vapour source；The condensed water generated in heater is transported to the heating water source in First Heat Exchanger as heat exchange.
5. MVR concentrations as claimed in claim 3 cooperate with treatment process with swirling flow atomizing, it is characterised in that：Swirling flow atomizing step
In, concentrate is first transported to the heating water source in the second heat exchanger as heat exchange, then again by the concentrate after heat exchange into
Row swirling flow atomizing.
6. a kind of MVR concentrations and swirling flow atomizing coprocessing system, which is characterized in that including heat exchanger, MVR vapo(u)rization systems and pot
Stove bypass flue system；
The MVR vapo(u)rization systems include heater, steam-water separator and the circulating pump being disposed there between；
The boiler bypass flue system includes air preheater, boiler bypass flue, electric precipitator with swirling flow atomizing room；
The air inlet of the air preheater connects boiler smoke, and gas outlet is connect with the air inlet of boiler bypass flue, the pot
The gas outlet of stove bypass flue is connect with the air inlet of the electric precipitator；The water inlet of the swirling flow atomizing room and the carbonated drink
The concentrated solution outlet of separator connects；
The water inlet of the heat exchanger connects waste water, and water outlet is connect with the water inlet of the heater.
7. MVR as claimed in claim 6 concentration and swirling flow atomizing coprocessing system, which is characterized in that further include sedimentation basin,
The water inlet of water inlet buffer tank, elevator pump, the sedimentation basin connects waste water, the water inlet of water outlet and the water inlet buffer tank
The water outlet of connection, the water inlet buffer tank is connected by the water inlet of elevator pump and heat exchanger.
8. MVR concentrations as claimed in claim 6 and swirling flow atomizing coprocessing system, which is characterized in that the heat exchanger packet
Include First Heat Exchanger and the second heat exchanger；The water inlet of the First Heat Exchanger and the second heat exchanger is separately connected waste water, they
Water outlet connect respectively with the water inlet of heater.
9. MVR concentrations as claimed in claim 8 and swirling flow atomizing coprocessing system, which is characterized in that further include vapour pressure
Contracting machine, condensation water tank and condensate pump；The indirect steam of the vapor inlet port of the vapour compression machine and the steam-water separator
Delivery outlet connects, and the steam outlet of the vapour compression machine is connect with the vapour source input port of the heater；Condensation water tank
Water inlet connect with the condensation water output of the heater, water outlet pass through the condensate pump with it is described first exchange heat
The heating water source input port of device connects.
10. MVR concentrations as claimed in claim 8 and swirling flow atomizing coprocessing system, which is characterized in that further include concentrate
Pump, concentration liquid case and atomizer pump；The water inlet of the concentrate pump is connect with the concentrate delivery outlet of the steam-water separator,
Water outlet is connect with the heating water source input port of second heat exchanger；The heating water source delivery outlet of second heat exchanger and institute
State the water inlet connection of concentration liquid case, the water outlet of the concentration liquid case by the atomizer pump and the swirling flow atomizing room into
The mouth of a river connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810443170.5A CN108383313A (en) | 2018-05-10 | 2018-05-10 | A kind of MVR concentration cooperates with treatment process and system with swirling flow atomizing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810443170.5A CN108383313A (en) | 2018-05-10 | 2018-05-10 | A kind of MVR concentration cooperates with treatment process and system with swirling flow atomizing |
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| CN110183024A (en) * | 2019-06-24 | 2019-08-30 | 中国华电科工集团有限公司 | A kind of device using low-grade flue gas concentration waste water |
| CN111559771A (en) * | 2019-02-13 | 2020-08-21 | 赫普科技发展（北京）有限公司 | Thermal power plant wastewater treatment system and wastewater treatment method |
| CN113264564A (en) * | 2021-05-18 | 2021-08-17 | 国能朗新明环保科技有限公司南京分公司 | Wastewater zero discharge system based on high-efficiency concentration and spray drying integrated treatment |
| WO2022100383A1 (en) * | 2020-11-16 | 2022-05-19 | 华能碳资产经营有限公司 | Apparatus and method for digital online monitoring and control of circulating water |
| CN115124100A (en) * | 2022-06-27 | 2022-09-30 | 河北建投工程建设有限公司 | High-efficient high salt waste water evaporative crystallization system |
| CN115321733A (en) * | 2022-08-18 | 2022-11-11 | 无锡东元环境科技有限公司 | Zero discharge process for electroplating wastewater |
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| CN115321733A (en) * | 2022-08-18 | 2022-11-11 | 无锡东元环境科技有限公司 | Zero discharge process for electroplating wastewater |
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