CN105271459B - A kind of waste liquid multi-phase separation device and its separation method - Google Patents
A kind of waste liquid multi-phase separation device and its separation method Download PDFInfo
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- CN105271459B CN105271459B CN201510659016.8A CN201510659016A CN105271459B CN 105271459 B CN105271459 B CN 105271459B CN 201510659016 A CN201510659016 A CN 201510659016A CN 105271459 B CN105271459 B CN 105271459B
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Abstract
The invention discloses a kind of waste liquid multi-phase separation device and its separation method, the device includes atomization plant, range of atomization, static pressure dilatation area, sound-producing device, ash hole, device portal and device outlet；Wherein atomization plant is arranged at the top of the range of atomization below device portal, static pressure dilatation area is arranged at below range of atomization and communicated with range of atomization, and the circulation area in static pressure dilatation area is more than the circulation area of range of atomization, sound-producing device is arranged at range of atomization, ash hole is arranged at static pressure dilatation area bottom, and device exports the side for being arranged at static pressure dilatation area.Separation method is to be vaporized again by high temperature gas flow after waste liquid is atomized by atomization plant, separates solia particle and moisture in waste liquid, realizes that solia particle is reunited by sound-producing device, then realizes that the acceleration of the solia particle after reuniting is sunk by static pressure dilatation area；Gas is exported by device and discharged, so as to realize the purpose of multi-phase separation.The present apparatus realizes the separating effect of solid-liquid-gas etc. by the sound-producing device with high-energy, unique static pressure dilatation design well.
Description
Technical field
The present invention relates to a kind of waste liquid multi-phase separation processing collection device and method, specifically one kind can be used for fire
The waste liquid multi-phase separation device and its separation method of the association areas such as electricity, steel.
Background technology
Currently, wastewater processing technology is mainly realized by the combination of physics, chemistry, biology or several method.Ordinary circumstance
Under, it is simple not reach related environmental requirement, it is necessary to use the method for chemistry or biological treatment using physical method progress wastewater treatment
It is applied in combination, but biology, chemical treatment method general technology are more complicated, as bioremediation needs to carry out microorganism training
Support, chemical treatment method needs constantly addition chemicals.In recent years, it is specifically useless for some power plant desulfurization wastewaters etc.
Water process, on the basis of chemical treatment method, part professional and technical personnel is based on heating power evaporation and is fixed with reference to electric cleaner
The operation principle of evil material develops a kind of waste water zero discharge device, and this kind of device is mainly in preposition processing rings such as filtering, atomizations
The difference in method on section be present.
Chinese patent CN201410397989.4 discloses a kind of device of desulfurization wastewater zero-emission, by desulphurization system, two
Segmentation waste-water vortex device, ultrasonic wave atomizing nozzle, deduster, waste water pump and waste water delivery pump composition；The two-period form waste water rotation
Stream device includes the sub- body of eddy flow, overflow pipe and filter screen；The cyclone inlets and underflow opening are connected with desulphurization system, described to overflow
Head piece is connected with ultrasonic wave atomizing nozzle；The deduster is provided with inlet flue duct；The ultrasonic wave atomizing nozzle and deduster
Inlet flue duct connection, the deduster is connected with desulphurization system.The present invention is reasonable in design, is arranged outside no waste water, saves water
Resource, space is saved, save cost, can effectively remove the inorganic ion and heavy metal ion in waste water.
Chinese patent CN201110076844.0 discloses a kind of zero emission treatment of desulfured waste water, including following step
Suddenly：1) desulfurization wastewater after desulfurizing tower desulfurization is discharged into preliminary sedimentation tank, initial gross separation is passed through in preliminary sedimentation tank, it is upper by what is isolated
Portion's clear liquid is transported in buffer pool through slurries pump；2) desulfurization wastewater in buffer pool is passed sequentially through into atomising device and electrostatic precipitation
Device；3) solid content larger waste water in preliminary sedimentation tank bottom is transported to sludge buffer pool through sludge pump, in sludge buffer pool containing solid
Measure larger waste water and be transported to filter press through another sludge pump；4) by the waste water after filtering through in slurries pumped back preliminary sedimentation tank；Together
When, the invention also discloses a kind of system, very easily desulfurization wastewater can be carried out by the method for the present invention at zero-emission
Reason, and technique is simple, saves manpower；The system architecture of the present invention is compact, and method implements simple, the saving energy, improvement deduster
The quality of inlet flue gas, and desulfurization wastewater zero-emission truly can be realized, there is promotional value.
But flue of the above-mentioned patented technology before electrostatic precipitator can all be held because of the salinity after being crystallized in desulfurization wastewater
Continue constantly by causing ash deposit and slag buildup to block, cause drafting efficiency to reduce, the exhaust gas volumn passed through reduces, to keep boiler to bear
Lotus, certainly will cause, which increases blower fan, is contributed and blower fan electric current, improves boiler controller system energy consumption, and serious dust deposit in flue is blocked and can more caused
The passive blowing out of boiler controller system；In addition, electrostatic precipitator is also since it is desired that extra a large amount of salinities removed after being crystallized in desulfurization wastewater
Aggravate electrostatic precipitator polar curve, the ash deposit and slag buildup of pole plate, cause the increase of electrostatic precipitator power consumption and efficiency of dust collection to reduce, especially
Serious ash deposit and slag buildup can cause electrostatic precipitator dedusting nearly unavailable, and the flue dust not being removed can be arrived by chimney discharge beyond standards
Environmental pollution is caused in air, thus water pollution is transformed to atmosphere pollution.
The content of the invention
It is an object of the invention to provide a kind of waste liquid multi-phase separation device to overcome above the deficiencies in the prior art
And its separation method, and the device need not be carried out with electrostatic precipitator in waste liquid crystallize salinity removing can realize waste liquid
Zero discharge treatment.The device solves solid-liquid-gas mixture by the sound-producing device with high-energy, unique static pressure dilatation design
Particulate after separation of solid and liquid is realized by high temperature evaporation is condensed into wrappage under sound wave effect, is produced after reaching static pressure dilatation area
Raw stall effect and then acceleration sinking discharge, further enhancing the separating effect of solid-liquid-gas etc..
Technical scheme is as follows：
A kind of waste liquid multi-phase separation device, the device include atomization plant, range of atomization, static pressure dilatation area, sound-producing device, gone out
Grey mouth, device portal export with device；Wherein atomization plant is arranged at the top of the range of atomization below device portal, static pressure dilatation area
It is arranged at below range of atomization and is communicated with range of atomization, and the circulation area in static pressure dilatation area is more than the circulation area of range of atomization, hair
Acoustic device is arranged at range of atomization, and ash hole is arranged at static pressure dilatation area bottom, and device exports the side for being arranged at static pressure dilatation area.
Described waste liquid multi-phase separation device, atomization plant include high-pressure pump, air compressor machine, atomization conduit and atomizer.
Described waste liquid multi-phase separation device, sound-producing device include acoustic generator, acoustic conducting pipe and control system.
Described waste liquid multi-phase separation device, the acoustic conducting pipe of sound-producing device is arranged on the inwall of range of atomization, and acoustic conducting pipe
Export towards inside range of atomization, the quantity that sound-producing device is set is one or more.
Described waste liquid multi-phase separation device, the upper space in static pressure dilatation area is big, and lower space is gradually reduced.
Described waste liquid multi-phase separation device, static pressure dilatation area are in back taper.
Described waste liquid multi-phase separation device, device exit is provided with sound reflecting homogenizing plate.
Described waste liquid multi-phase separation device, sound reflecting homogenizing plate by upper part perforate, lower part not perforate bilayer or
Multi-layer sheet is formed, and gap between each laminate be present, and hole is arranged in different plates using dislocation.
Described waste liquid multi-phase separation device, ash discharge holder is connected with below ash hole.
Described waste liquid multi-phase separation device, ash discharge holder by upper and lower valve and its between bulk cement storage tank form.
The method of waste liquid multi-phase separation device separation waste liquid described in any of the above item, comprises the following steps：
(1) waste liquid is entered into range of atomization after atomization plant is atomized, waste liquid is atomized into vaporific solid-liquid mixing droplet；
(2) high temperature gas flow is passed through at device portal so that moisture after atomization in waste liquid is by thermal evaporation, the salt in waste water
Point crystal fine grain, the contaminant particles in gas and a small amount of liquid mist for having little time evaporation along air-flow advance when sent out by sound-producing device
The high strong sound wave strong disturbance that goes out and constantly condense to form larger reunion wrappage；
(3) when larger reunion wrappage reaches static pressure dilatation area, stall sinking is produced because circulation area increases suddenly,
Simultaneously under the synergy of terrestrial gravitation, acceleration is dropped in ash hole；
(4) waste liquid that evaporates formed vapor with more clean air-flow by after sound reflecting homogenizing plate uniformly from device
Outlet discharge.
The design principle of waste liquid multi-phase separation device provided by the invention is as follows：
1st, waste liquid is atomized through atomization plant, and waste liquid becomes the solid-liquid mixing droplet that nebulizes, so as to can realize and High Temperature Gas
Stream fully contact, after solid-liquid mixing droplet makes full use of air-flow heat, clean moist part is by high temperature evaporation and with gas
Stream is pulled away, and is left salinity crystal, realizes solid-liquid-gas separation.
2nd, sound is a kind of energy, and the vibration in air can produce sound, and sound can make air produce vibration again.Acoustic pressure
Energy caused by the very high high strong sound wave of level is stronger, and the vibration of air can be stronger.Produced using the strong sound wave of certain frequency
Acoustic pressure active force, a small amount of liquid mist droplet for having little time evaporation that can make mutually can't touch originally, moisture is evaporated in waste liquid
Fall the contaminant particles in rear remaining salinity particulate and flue gas stream because judder is mutually collided, and mutually parcel is condensed into
It is larger to contain wet granulation, then influenceed by gravity factor by these larger particulate matters itself to drop to ash hole, Ran Houzai
Further it is collected, it is significantly slow in thermal power plant, steel plant's application it is possible to prevente effectively from dust stratification stopping state occurs in pipeline
Electrostatic precipitator polar curve, pole plate ash deposit and slag buildup situation are solved, boiler controller system energy consumption is reduced, significantly improves electrostatic precipitator dedusting effect
Rate, reduce the discharge of the relevant atmospheric pollutant including PM10, PM2.5.
3rd, to improve the settling efficiency by the pockets of bulky grain thing of sonic agglomeration, static pressure dilatation area is set, play current stabilization,
Flow, reduce airstream vibration, eliminate eddy current effect, when sweeping along the air-flow of particulate matter to reach static pressure dilatation area, because circulating face
Increase causes speed bust to enter stall conditions to product suddenly, and the particulate matter of conglomerate is just detained and almost can all sunk herein
Lower and fall into ash hole.
Compared with prior art, the beneficial effects of the present invention are：
1st, the present invention very easily can carry out multi-phase separation collection to the waste water of association area, available for waste liquid zero-emission
The realization of processing is put, and technique is simple, it is not necessary to use any chemicals, save manpower.
2nd, the present invention can make full use of power-plant flue gas waste heat in treatment of Power waste liquid, be evaporated the useless of heavily contaminated substantially
Water, realizes solid-liquid, solid and gas separation, and before improving into deduster flue gas dustiness, be advantageous to improve the dedusting effect of deduster
Fruit.
3rd, in existing waste water zero-discharge technology, after the salinity crystal that is obtained by high temperature evaporation realizes separation of solid and liquid,
Salinity crystal reaches electrostatic precipitator and by electrostatic precipitator removing salinity crystal with flue gas circulation piping, causes
Dust deposited in pipeline fouling and clogging simultaneously aggravates electrostatic precipitator ash deposit and slag buildup, causes the increase of boiler controller system energy consumption, passive blowing out, air dirty
The problem of dye thing discharge beyond standards etc. are difficult to overcome.In the present invention, salinity crystal fine grain in waste water, miscellaneous in flue gas can be made
Matter particulate and a small amount of liquid mist for having little time evaporation promote particle coagulation, static pressure dilatation to cause solid particle stall in high strong sound wave
Under the three aspect factor comprehensive function such as sinking, terrestrial gravitation, impurity in salinity crystal and flue gas and a small amount of liquid in waste water
Mist forms reunion wrappage and dropped in ash hole, is then further carried out collecting and outer row, such design can be avoided effectively
Dust stratification stopping state occurs in pipeline, further, since salinity crystal does not enter back into electrostatic precipitator subsequently, and enters in flue gas
The impurity of electrostatic precipitator also greatly reduces, and electrostatic precipitator is because load of dust remove significantly reduces and causes polar curve, pole plate dust stratification knot
Dirty situation is alleviated significantly, and boiler controller system energy consumption reduces, passive blowing out situation has not existed, atmosphere pollution no longer discharge beyond standards.
4th, system architecture of the invention is compact, and method is implemented simply, and can realize waste liquid multiphase point truly
From with wastewater zero discharge, not only environmental protection but also safety, there is promotional value.
5th, it is combined present invention employs sound-producing device, range of atomization and static pressure dilatation area and three kinds of sound reflecting homogenizing plate is set
Meter is combined to play synergy, and sending the high strong sound wave of Frequency Adjustable by sound-producing device promotes particle coagulation, range of atomization and static pressure
Dilatation area is combined the solid parcel thing after causing cohesion and produces stall and accelerate sinking, sound reflecting homogenizing plate that high strong sound wave is high
Effect reflects, and reduces acoustic wave energy loss, improves acoustic wave energy utilization rate, so as to which humidification is in the high-strength sound of particle coagulation
The gas that wave energy, raising particle coagulation effect, while sound reflecting homogenizing plate enable to discharge, which reaches, to be fluidized, and gas can be equal
Even exported from device is discharged；If connecting gas processing device in device exit, just can ensure gas well to flow
Form enters processing equipment, so as to avoid because gas distribution inhomogeneities and caused by fouling aggravation etc..
Brief description of the drawings
Fig. 1 is the waste liquid multi-phase separation schematic device described in the embodiment of the present invention 1；
Fig. 2 is the waste liquid multi-phase separation schematic device described in the embodiment of the present invention 2；
Fig. 3 is the waste liquid multi-phase separation schematic device described in the embodiment of the present invention 3；
In figure 1 above-Fig. 3,1 is atomization plant, and 11 be high-pressure pump, and 12 be air compressor machine, and 13 be atomization conduit, and 14 be atomization
Nozzle, 2 be range of atomization, and 3 be static pressure dilatation area, and 4 be sound-producing device, and 5 be ash hole, and 6 be device portal, and 7 be that device exports, 8
It is ash discharge holder for sound reflecting homogenizing plate, 9.
Embodiment：
Waste liquid multi-phase separation device provided by the invention is further described below in conjunction with the accompanying drawings.
Embodiment 1
As shown in figure 1, the waste liquid multi-phase separation schematic device provided for the present embodiment, including atomization plant 1, range of atomization
2, static pressure dilatation area 3, sound-producing device 4, ash hole 5, device portal 6 and device export 7；Wherein atomization plant 1 is arranged at device
The top of range of atomization 2 of the lower section of entrance 6, static pressure dilatation area 3 is arranged at the lower section of range of atomization 2 and communicated with range of atomization 2, and static pressure dilatation
The circulation area in area 3 is more than the circulation area of range of atomization 2, and sound-producing device 4 is arranged at range of atomization 2, and ash hole 5 is arranged at static pressure expansion
Hold the bottom of area 3, device outlet 7 is arranged at the side in static pressure dilatation area 3.
Device provided by the invention well can be separated solid-liquid-gas three phase.During specifically used, it will dissolve
Or the liquid phase (waste liquid) with salt or other solvable or insoluble impurity is atomized by atomization plant 1, is atomized the small of formation
Drop enters in range of atomization 2, is sunk by self gravitation, and hot gas can be now passed through at device portal 6, will be atomized
Evaporation forms water vapour to the moisture in droplet afterwards rapidly, and the material that the salt or other evaporations in small liquid do not fall is analysed
Go out, the little particulate of forming salt crystalloid or other materials.High strong sound wave now is sent by being arranged on the sound-producing device of range of atomization,
So that salt crystalloid and other little particulates unite to form mutual wrappage rapidly, under wrappage increases so as to accelerate due to weight
It is heavy, when wrappage sinks down into static pressure dilatation area 3, because the porch circulation area in static pressure dilatation area 3 increases suddenly so that bag
Wrap up in thing and produce stall event, and then accelerate and sink down into ash hole 5, the remaining gas more cleaned is discharged from device outlet 7.
Using the device and separating technology of the above, solid-liquid-gas three phase to be separated can be effectively separated well, its is ingenious
Ground make use of the phase in version of material and the condensation principle of sound wave, and using material under centrifugal force effect in sinking watching by
Stall event caused by transformation in different spaces promotes the wrappage after cohesion to sink to bottom of device faster.It is more than utilization
Device, the multiphase body for needing solid-liquid-gas to separate can be preferably handled, and preferable separating effect can be reached.
Embodiment 2
As shown in Fig. 2 being the further improvement on the basis of embodiment 1, wherein atomization plant 1 includes high-pressure pump 11, empty
Press 12, atomization conduit 13 and atomizer 14, it can be good at playing atomizing effect, sound-producing device 4 includes acoustic generator, sound
Conduit and control system, control system can control acoustic generator to send the sound wave of different frequency range, and sound wave is outside by acoustic conducting pipe
Send, acoustic conducting pipe is arranged at the inwall of range of atomization 2, and acoustic conducting pipe is exported towards inside range of atomization 2, this ensure that sound wave is sent
After can be applied to greatest extent on atomization droplet, produce the effect of cohesion.Static pressure dilatation area 3 is arranged to upper space
Greatly, lower space is gradually reduced, and is especially set to back taper, so enables to the wrappage to be formed promptly to sink and slide
To the ash hole 5 of bottom；Be provided with sound reflecting homogenizing plate 8 at device outlet 7, sound reflecting homogenizing plate 8 by upper part perforate, under
The bilayer or multi-layer sheet of part not perforate are formed, and gap between each laminate be present, and hole is arranged in different plates using dislocation, Neng Gouyou
The reflecting back sound wave of effect, at utmost reduces the loss of acoustic energy, and the gas more cleaned is from sound reflecting homogenizing plate 8
By foring good equal gas body again, can uniformly discharge, and the processing that gas can be connected at device outlet 7 is set
It is standby, so can be good at ensure gas enter the equipment in the form of flowing, so as to avoid because gas be distributed it is uneven
Property and produce fouling aggravation etc..
Embodiment 3
As shown in figure 3, the waste liquid multi-phase separation schematic device provided for the present embodiment, is on the basis of embodiment 2
Another improvement, wherein be connected with ash discharge holder 9 below ash hole 5, ash discharge holder 9 by upper and lower valve and its it
Between bulk cement storage tank composition, so can to ash hole 5 carry out folding control, valve can be first turned on so that black dirt enter
In bulk cement storage tank, when bulk cement storage tank is filled, valve in closing, open lower valve and the black dirt in bulk cement storage tank is released and transported, so
Storage ash can be continued again.
Embodiment 4
Using certain power plant filtered desulfurization wastewater of 1000MW units use waste liquid multi-phase separation device provided by the invention as
Example, illustrate the method for operation of the present apparatus, wherein connecting flue at device portal, electrostatic precipitator is connected in device exit.
Detailed process is as follows：
(1) filtered desulfurization wastewater is transported to atomizer by high-pressure pump by atomization conduit, and air compressor machine sprays with atomization
Mouth connects, and air compressor machine produces a large amount of compressed airs, and under the collective effect of high-pressure pump and air compressor machine, waste water is atomized nozzle atomization
The solid-liquid mixing droplet to nebulize.
(2) vaporific solid-liquid mixing droplet enters range of atomization, and high-temperature flue gas stream is passed through at device portal so that atomization
The moisture in waste water is by heating evaporation afterwards, the salinity crystal fine grain in waste water, the contaminant particles in flue gas and has little time on a small quantity
The liquid mist of evaporation along flue gas stream advance when the high strong sound wave that is sent by two sound-producing devices for being fixed on range of atomization wallboard it is strong
Disturb and constantly condense to form larger reunion wrappage.Sound-producing device by Frequency Adjustable high-intensity sound wave, acoustic conducting pipe with
And control system composition, acoustic conducting pipe are extended on range of atomization wallboard and set by voice directions into range of atomization.Every sounding dress
Put institute's sounding power arbitrarily to adjust between 10000-30000 watts, audible frequency is arbitrarily adjusted between 30-300Hz.
(3) when the larger reunion wrappage condensed reaches static pressure dilatation area, because circulation area increases generation mistake suddenly
Speed is sunk, while under the synergy of the factors such as terrestrial gravitation, acceleration is dropped in ash hole.
(4) waste water evaporated forms vapor with more clean flue gas stream by uniformly being reached after sound reflecting homogenizing plate
Electrostatic precipitator, the high strong sound wave that sound-producing device is sent are reflected by sound reflecting homogenizing plate to strengthen the energy of high strong sound wave,
Reduce the loss of acoustic wave energy.
(5) ash hole connection ash discharge holder, ash discharge holder by upper and lower valve and its between bulk cement storage tank form, when
When the lime-ash to precipitate is excessive, the upper valve of ash discharge holder is opened, the lime-ash in ash hole is dropped in bulk cement storage tank；Work as storage
When ash can is filled with lime-ash, the upper valve of ash discharge holder is closed, opens the lower valve of ash discharge holder, lime-ash realization is outer to arrange and transport
Go out.
Claims (8)
1. a kind of waste liquid multi-phase separation device, it is characterised in that the device includes atomization plant（1）, range of atomization（2）, static pressure expansion
Hold area（3）, sound-producing device（4）, ash hole（5）, device portal（6）Exported with device（7）；Wherein atomization plant（1）It is arranged at
Device portal（6）The range of atomization of lower section（2）Top, static pressure dilatation area（3）It is arranged at range of atomization（2）Lower section and and range of atomization（2）
Communicate, and static pressure dilatation area（3）Circulation area be more than range of atomization（2）Circulation area, sound-producing device（4）It is arranged at range of atomization
（2）, ash hole（5）It is arranged at static pressure dilatation area（3）Bottom, device outlet（7）It is arranged at static pressure dilatation area（3）Side；Hair
Acoustic device（4）Including acoustic generator, acoustic conducting pipe and control system；Wherein static pressure dilatation area（3）Upper space it is big, lower space
It is gradually reduced.
2. the waste liquid multi-phase separation device according to claim 1, it is characterised in that atomization plant（1）Including high-pressure pump
（11）, air compressor machine（12）, atomization conduit（13）And atomizer（14）.
3. the waste liquid multi-phase separation device according to claim 1, it is characterised in that sound-producing device（4）Acoustic conducting pipe set
It is placed in range of atomization（2）Inwall on, and acoustic conducting pipe outlet is towards range of atomization（2）Inside, sound-producing device（4）The quantity of setting is one
It is individual or more than one.
4. the waste liquid multi-phase separation device according to claim 1, it is characterised in that device exports（7）Place sets sound
Reflect homogenizing plate（8）.
5. waste liquid multi-phase separation device according to claim 4, it is characterised in that sound reflecting homogenizing plate（8）By upper part
Perforate, the bilayer of lower part not perforate or multi-layer sheet are formed, and gap between each laminate be present, and hole is arranged in different plates using dislocation
Cloth.
6. the waste liquid multi-phase separation device according to claim 1, it is characterised in that ash hole（5）Connection is set below
There is ash discharge holder（9）.
7. the waste liquid multi-phase separation device according to claim 6, it is characterised in that ash discharge holder（9）By upper and lower valve
Door and its between bulk cement storage tank composition.
A kind of 8. method of the waste liquid multi-phase separation device separation waste liquid described in any one of claim 1-7, it is characterised in that
Comprise the following steps：
（1）Waste liquid is entered into range of atomization after atomization plant is atomized, waste liquid is atomized into vaporific solid-liquid mixing droplet；
（2）High temperature gas flow is passed through at device portal so that moisture after atomization in waste liquid is by thermal evaporation, the salinity knot in waste water
Contaminant particles in brilliant particulate, gas and a small amount of liquid mist for having little time evaporation along air-flow advance when sent by sound-producing device
High strong sound wave strong disturbance and constantly condense to form larger reunion wrappage；
（3）When larger reunion wrappage reaches static pressure dilatation area, stall sinking is produced because circulation area increases suddenly, simultaneously
Under the synergy of terrestrial gravitation, acceleration is dropped in ash hole；
（4）The waste liquid evaporated forms vapor with more clean air-flow by uniformly being exported after sound reflecting homogenizing plate from device
Discharge.
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| CN105644980B (en) * | 2016-03-10 | 2018-07-17 | 西安交通大学 | A kind of high temperature fluid emergency discharge device for super critical water treatment system |
| CN105776584B (en) * | 2016-05-17 | 2018-07-24 | 唐山三友化工股份有限公司 | Alkali residue waste liquid is detached, is washed, the integration unit of dechlorination and its application |
| CN107140777A (en) * | 2017-06-27 | 2017-09-08 | 南京常荣声学股份有限公司 | A kind of desulfurization wastewater zero discharge treatment device and its processing method |
| CN110182880A (en) * | 2019-05-21 | 2019-08-30 | 浙江浙能技术研究院有限公司 | A kind of high slat-containing wastewater flue gas drying processing unit |
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