CN105271589B - A kind of Zero discharge processing unit and its processing method - Google Patents
A kind of Zero discharge processing unit and its processing method Download PDFInfo
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- CN105271589B CN105271589B CN201510658998.9A CN201510658998A CN105271589B CN 105271589 B CN105271589 B CN 105271589B CN 201510658998 A CN201510658998 A CN 201510658998A CN 105271589 B CN105271589 B CN 105271589B
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Abstract
The invention discloses a kind of Zero discharge processing unit and its processing method, processing unit includes waste liquid conveying equipment, preliminary sedimentation tank, buffer pool, atomization plant, solid-liquid-gas separating device and dust arrester, the water-supply-pipe connection preliminary sedimentation tank of waste liquid conveying equipment, preliminary sedimentation tank Connection Pool, buffer pool connect atomization plant by flow pipe；Atomization plant is arranged at solid-liquid-gas separating device top inlet, and the gas vent of solid-liquid-gas separating device is connected by pipeline with dust arrester.Processing method is that waste water enters at solid-liquid-gas separating device top inlet after atomization plant is atomized again through preliminary sedimentation tank into buffer pool；High temperature gas flow is passed through at top inlet by the moisture evaporation in droplet after atomization, obtains contaminant particles, the high-strength sonic agglomeration sent through sound-producing device, which forms larger reunion wrappage and enters stall conditions by static pressure dilatation area, to be accelerated to sink and discharge.The present invention has further purified waste water by the device design of uniqueness, is finally reached the purpose of zero-emission.
Description
Technical field
It is more particularly to a kind of to be used for the neck such as thermoelectricity, steel the present invention relates to a kind of liquid waste treating apparatus and its processing method
The Zero discharge processing unit in domain.
Background technology
With the progress and expanding economy of society, pollution of the thermal power plant to atmospheric environment is by the generally pass of people
Note, therefore the influence for effectively reducing pollutant emission to improve to environment is that China's energy field sustainable development is faced
Severe challenge.
At present, existing flue gas desulfurization technique includes wet desulphurization and dry desulfurization etc..The wherein fortune of Wet Flue Gas Desulfurization Technique
With the most extensive.Wet process of FGD is the technological process that current 85% or so large thermal power plant in the world uses.Wet flue gas
Desulphurization system waste water is because mercury, lead, nickel, arsenic and chromium heavy metal ion content are higher, and the harm directly discharged is very big, general chemistry
Processing method is again excessively complicated, and needs constantly addition chemicals, labor intensive.Another desulfurization wastewater chemical treatment method processing
Waste water chlorion (there is no chemical agent to remove removing chloride at present) afterwards can not still remove.At present, existing desulfurization wastewater zero
Emission treatment technology can fix harmful substance by heating power method of evaporating with reference to the use of electric cleaner, again can be fully sharp
Reach the purpose of zero-emission with fume afterheat.
Authorized announcement date is on 07 17th, 2013, and Authorization Notice No. is disclosure in CN102180549B Chinese patent
A kind of zero emission treatment of desulfured waste water, comprises the following steps：1) desulfurization wastewater after desulfurizing tower desulfurization is discharged into pre-
Heavy pond, initial gross separation is passed through in preliminary sedimentation tank, the upper clear supernate isolated is transported in buffer pool through slurries pump；2) will buffering
Desulfurization wastewater in pond passes sequentially through atomising device and electrostatic precipitator；3) by the larger waste water of preliminary sedimentation tank bottom solid content through dirt
Dredge pump is transported to sludge buffer pool, and the larger waste water of the solid content in sludge buffer pool is transported to filter press through another sludge pump；
4) by the waste water after filtering through in slurries pumped back preliminary sedimentation tank.But this zero emission treatment of desulfured waste water is in electrostatic precipitation
Flue before device can cause to divulge information because the salinity after crystallizing in desulfurization wastewater is continual by causing ash deposit and slag buildup to block
Efficiency reduces, and the exhaust gas volumn passed through reduces, and to keep boiler load, certainly will cause to increase blower fan output and blower fan electric current, improve
Boiler controller system energy consumption, serious dust deposit in flue, which blocks, can more cause the passive blowing out of boiler controller system；In addition, electrostatic precipitator also because
The salinity aggravation electrostatic precipitator polar curve after being crystallized in extra a large amount of removing desulfurization wastewaters, the ash deposit and slag buildup of pole plate are needed, is caused
Electrostatic precipitator power consumption increases and efficiency of dust collection reduces, and the ash deposit and slag buildup of especially severe can cause the dedusting of electrostatic precipitator several
Invalid, the flue dust not being removed can cause environmental pollution into air by chimney discharge beyond standards.
The content of the invention
It is an object of the invention to provide a kind of brand-new Zero discharge to overcome above the deficiencies in the prior art
Processing unit and its processing method, the device design to form solid-liquid-gas with the static pressure dilatation of the sound-producing device, uniqueness of high-energy
Separator solve by high temperature evaporation realize pipeline of the wastewater zero emission treatment method of separation of solid and liquid before dust arrester because
Blocked for the continual ash deposit and slag buildup caused by of salinity after crystallization in waste water and dust arrester is because load of dust remove
Dedusting position ash deposit and slag buildup caused by substantial increase aggravates problem, effectively avoids boiler controller system caused by being blocked due to ash deposit and slag buildup
The relevant issues such as the atmosphere pollution discharge beyond standards such as energy consumption increase, the passive blowing out of boiler controller system, flue dust, realize energy-conserving and environment-protective comprehensively
With waste water and gas zero-emission target.It is simple that the method technique of liquid waste processing is carried out using device provided above, manpower is saved and throws
Enter, it is not necessary to add any chemicals, but also make full use of fume afterheat, realize Zero discharge.
Technical scheme is as follows：
A kind of Zero discharge processing unit, including waste liquid conveying equipment, preliminary sedimentation tank, buffer pool, atomization plant, solid-liquid-gas
Separator and dust arrester, the water-supply-pipe of wherein waste liquid conveying equipment itself are stretched to inside preliminary sedimentation tank, preliminary sedimentation tank and buffering
Pond is connected, and buffer pool is connected by flow pipe with atomization plant；Solid-liquid-gas separating device includes top inlet, under top inlet
Side is provided with range of atomization, and static pressure dilatation area is provided with below range of atomization, and the circulation area in static pressure dilatation area is more than the stream of range of atomization
Logical area, static pressure dilatation area bottom set ash hole, and static pressure dilatation area side is provided with gas vent, gas outlet setting sound
Homogenizing plate is reflected, solid-liquid-gas separating device is internally provided with sound-producing device；Atomization plant is arranged at solid-liquid-gas separating device top
Porch, the gas vent of solid-liquid-gas separating device are connected by pipeline with dust arrester.
Described Zero discharge processing unit, waste liquid conveying equipment include slurries pump and water-supply-pipe.
Described Zero discharge processing unit, waste liquid conveying equipment also include decompression current equalizer, flowed wherein depressurizing
Device is arranged at the water delivery exit of water-supply-pipe.
Described Zero discharge processing unit, the decompression current equalizer form pressure to the gradual dilatation of water delivery pipe end
Buffering area, and set one or more layers that there is the orifice plate of uniform punching rate in pressure buffer area, make the liquid flowed out in water-supply-pipe
Decompression is slowed down and flowed by orifice plate.
Described Zero discharge processing unit, dust arrester are electrostatic precipitator or sack cleaner.
Described Zero discharge processing unit, preliminary sedimentation tank are connected by first filter with buffer pool.
Described Zero discharge processing unit, agitator is provided with preliminary sedimentation tank.
Described Zero discharge processing unit, external pipe interface is provided with solid-liquid-gas separating device top inlet.
Described Zero discharge processing unit, preliminary sedimentation tank bottom are provided with grout outlet, pulp are connected with below grout outlet
Device, go out sizing device by upper and lower valve and its between the bulk cement storage tank that sets form.
Described Zero discharge processing unit, the second filter is provided with flow pipe.
Described Zero discharge processing unit, having heaters is set on flow pipe.
Described Zero discharge processing unit, atomization plant include high-pressure pump, air compressor machine, and atomization conduit and atomization are sprayed
Mouth.
Described Zero discharge processing unit, sound-producing device includes acoustic generator, acoustic conducting pipe and control system, wherein controlling
System processed controls acoustic generator sounding, and the sound wave sent is sent out by acoustic conducting pipe.
Described Zero discharge processing unit, sound-producing device are arranged in range of atomization or range of atomization and static pressure dilatation area
Junction, the acoustic conducting pipe of sound-producing device are arranged on the inside panel of solid-liquid-gas separating device, and the quantity that sound-producing device is set is one
It is individual or more than one.
Described Zero discharge processing unit, sound reflecting homogenizing plate by top perforate, bottom not perforate it is double-deck or more
Laminate is formed, and gap be present between different laminates, hole is distributed on different laminates by the way of Heterogeneous Permutation；
Ash discharging gear is provided below in described Zero discharge processing unit, ash hole, and ash discharging gear is by upper and lower valve
The bulk cement storage tank composition set between and its.
Described Zero discharge processing unit, gas outlet are provided with temperature sensor and humidity sensor, solid-liquid
Dust content detector is provided with the pipeline that air separation is connected with dust arrester.
The processing method of above-described Zero discharge processing unit, comprises the following steps：
Step 1, waste liquid is delivered in preliminary sedimentation tank by waste liquid conveying equipment, after carrying out preliminary sedimentation in preliminary sedimentation tank
Top waste water enters in buffer pool；
Step 2, the waste water in buffer pool are atomized by atomization plant, and the solid-liquid mixing droplet after atomization is from top
Declined at end entrance；
Step 3, high temperature gas flow is passed through by the big portion after atomization to range of atomization at the top inlet of solid-liquid-gas separating device
The moisture evaporation divided in droplet, has obtained salinity crystal fine grain, these salinity crystal fine grains are together with the impurity in high temperature gas flow
Particulate and a small amount of droplet for having little time evaporation constantly condense shape by the high strong sound wave strong disturbance that sound-producing device is sent
Into larger reunion wrappage, these wrappages accelerate to sink because quality increases；
Step 4, when wrappage enters static pressure dilatation area by range of atomization, the sky bigger due to having abruptly entered circulation area
Between, cause it to enter stall conditions and accelerate to sink, eventually arrive at ash hole discharge；
Step 5, evaporate formation water vapour flowed by sound reflecting homogenizing plate with the air-flow more cleaned after by pipe
Road reaches dust arrester and carries out further dedusting.
The design and operation principle of Zero discharge processing unit provided by the invention are as follows：
(1) in power plant's waste treatment process, waste liquid is atomized after precipitation, filtering through atomization plant, and waste liquid, which becomes, to nebulize
Solid-liquid mixing droplet, fully contacted with flue gas stream so as to can realize, after solid-liquid mixing droplet makes full use of fume afterheat,
Clean moist part reaches dust arrester by high temperature evaporation with flue gas stream, is left salinity crystal, realizes solid-liquid-gas separation.
(2) using acoustic pressure active force caused by the strong sound wave of certain frequency, it can make that mutually can't touch originally to have little time
A small amount of liquid mist droplet of evaporation, in waste liquid moisture be evaporated contaminant particles in rear remaining salinity particulate and flue gas stream by
Mutually collided in judder, and mutually parcel is condensed into the larger wet granulation that contains, then pass through these larger particles itself
Thing is influenceed to drop to ash hole by gravity factor, is then further carried out collecting, so it is possible to prevente effectively from occurring in pipeline
Dust stratification stopping state, alleviate dust arrester dedusting position ash deposit and slag buildup situation significantly, reduce boiler controller system energy consumption, significantly improve and remove
Dirt device efficiency of dust collection, reduce the discharge of the relevant atmospheric pollutant including PM10, PM2.5.
(3) by setting static pressure dilatation area in solid-liquid-gas separating device, current stabilization is played, is flowed, is reduced airstream vibration, disappears
Except eddy current effect, and when to sweep along the flue gas stream containing wet granulation formed through sound wave effect reach static pressure dilatation area because
Abruptly enter in the more space of books circulation area, cause speed bust to enter stall conditions, influenceed nature plus by self gravitation
Decline, these are detained in static pressure dilatation area containing wet granulation and all settled down is discharged by the ash hole of bottom.
(4) become from the flue gas that the gas vent of solid-liquid-gas separating device comes out after static pressure dilatation area is handled in order to more clear
Clean flue gas, the flue gas enter dust arrester by pipeline after being flowed by sound reflecting homogenizing plate and carry out dedusting, the cigarette after flowing
Gas can avoid local scaling problem in pipeline well, improve device utilization ratio.
(5) solid-liquid-gas separating device gas outlet is provided with sound reflecting homogenizing plate, and it does not influence the positive normal open of flue gas stream
Cross, but the high strong sound wave high-efficiency reflective that can send sound-producing device is returned, so as to reduce the loss of acoustic wave energy, raising sound
The utilization rate of wave energy, and humidification is in the high-strength acoustic wave energy of particle coagulation.Specially sound reflecting homogenizing plate passes through bilayer
Or after multi-layer sheet local misalignment perforated design, air-flow is arrived after twice or repeatedly uniform in very short distance uniformly through pipeline
Up to dust arrester, avoid the dust arrester dedusting position ash deposit and slag buildup caused by air flow method is uneven and aggravate phenomenon.In addition,
Sound wave is reflected back because that can not pass through the plate of dislocation perforation, and acoustic energy is strengthened in field.
(6) 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
Design 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 quiet
Companding holds the solid particle that area is combined 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 flue gas that wave energy, raising particle coagulation effect, while sound reflecting homogenizing plate enable to discharge, which reaches, to be fluidized, final to realize
The flue gas of discharge is cleaned and flue gas homogenization is reached in dust arrester, is avoided and is realized separation of solid and liquid by high temperature evaporation
Pipeline of the wastewater zero emission treatment method before dust arrester is because the salinity after being crystallized in waste water is continual by making
Into ash deposit and slag buildup block and dust arrester is because ash deposit and slag buildup aggravation in dedusting position caused by load of dust remove substantial increase
Problem, energy-conserving and environment-protective and waste water and gas zero-emission target are realized comprehensively.
Compared with prior art, Zero discharge device provided by the invention and its processing method have below beneficial to effect
Fruit：
1st, the present invention very easily can carry out zero discharge treatment to the waste water of association area, and technique is simple, is not required to
Any chemicals is used, saves manpower.
2nd, the present invention makes full use of fume afterheat, is evaporated the waste water of heavily contaminated substantially, realizes solid-liquid, solid and gas separation, and
Improve the humidity that flue gas enters before dust arrester, be advantageous to improve the dust removing effects of dust arrester.
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 dust arrester and by dust arrester removing salinity crystal with flue gas circulation piping, causes pipeline
Ash deposit and slag buildup blocks and aggravates dust arrester ash deposit and slag buildup, causes the increase of boiler controller system energy consumption, passive blowing out, atmosphere pollution to surpass
The problem of mark discharge etc. is difficult to overcome.In the present invention, the salinity crystal fine grain in waste water, contaminant particles in flue gas and few
The liquid mist that amount has little time evaporation promotes particle coagulation, static pressure dilatation to cause solid particle stall sinking, the earth to be drawn in high strong sound wave
Under the three aspect factor comprehensive function such as power, the impurity in salinity crystal and flue gas in waste water forms bag of reuniting with a small amount of liquid mist
Wrap up in thing to drop in ash hole, be then further carried out collecting and outer row, such design can effectively avoid accumulating in pipeline
The situation that ash blocks, further, since salinity crystal does not enter back into dust arrester, and enter the impurity of dust arrester in flue gas
Greatly reduce, dust arrester is because load of dust remove significantly reduces and causes dedusting position ash deposit and slag buildup situation to alleviate significantly, boiler machine
Group energy consumption reduces, passive blowing out situation has not existed, atmosphere pollution no longer discharge beyond standards.
4th, the how combined separate design of solid-liquid-gas separating device.Waste water in buffer pool forms vaporific consolidate after being atomized
Liquid mixing droplet, in the presence of high-temperature flue gas, moisture heating evaporation in solid-liquid mixing droplet forms vapor with going
Remove the more clean flue gas stream after impurity and reach dust arrester.The impurity in salinity crystal fine grain, flue gas in waste water is micro-
Grain and a small amount of liquid mist for having little time evaporation are mutually collided in the presence of the high-strength acoustic wave energy that sound-producing device is constantly sent, and
Mutually parcel be condensed into it is larger contain wet granulation, under gravity, mutually wrapped up condense larger and contained wet granulation
Gradually with flue gas flow separation and sinking down into ash hole.The setting in range of atomization and static pressure dilatation area can cause solid particle because prominent
Right stall and accelerate to sink and drop to ash hole as much as possible, so as to realize the how combined separation of solid-liquid-gas.
5th, the temperature, humidity, dust burdening of the present invention by monitoring the material stream by solid-liquid-gas separating device on-line etc. refers to
Mark, preferably can automatically control and adjust the work operational factor of the associated components such as heater, sound-producing device, high-pressure pump, whole
More preferably, operating cost is lower, automaticity is higher for the operational effect of body device.
6th, system architecture of the invention is compact, and method is implemented simply, and can realize wastewater zero discharge truly,
Not only environmental protection but also safety, have promotional value.
Brief description of the drawings
Fig. 1 is the Zero discharge processing unit schematic diagram described in the embodiment of the present invention 1；
Fig. 2 is the Zero discharge processing unit schematic diagram described in the embodiment of the present invention 2；
In figure 1 above-Fig. 2,1 is waste liquid conveying equipment, and 11 be slurries pump, and 12 be water-supply-pipe, and 13 be decompression current equalizer,
2 be preliminary sedimentation tank, and 21 be sizing device, and 22 be agitator, and 3 be first filter, and 4 be buffer pool, and 5 be flow pipe, and 51 be second
Filter, 52 be heater, and 6 be atomization plant, and 61 be high-pressure pump, and 62 be air compressor machine, and 7 be solid-liquid-gas separating device, and 71 be mist
Change area, 72 be static pressure dilatation area, and 73 be sound-producing device, and 74 be sound reflecting homogenizing plate, and 75 be temperature sensor, and 76 be humidity sensor
Device, 77 be ash hole, and 78 be ash discharging gear, and 8 be pipeline, and 81 be dust content detector, and 9 be dust arrester, and 10 be extension tube attached
Pipeline joint, I are that waste liquor stream flows through direction through direction, II for external gas.
Embodiment：
Zero discharge processing unit provided by the invention is further described by the following examples.
Embodiment 1
As shown in figure 1, it is the Zero discharge processing unit schematic diagram provided in embodiment, it can be seen that whole device
Including waste liquid conveying equipment 1, preliminary sedimentation tank 2, buffer pool 4, atomization plant 6, solid-liquid-gas separating device 7 and dust arrester 9, wherein useless
The water-supply-pipe 12 of liquid conveying equipment 1 itself is stretched to inside preliminary sedimentation tank 2, and preliminary sedimentation tank 2 is connected with buffer pool 4, and buffer pool 4 passes through
Flow pipe 5 is connected with atomization plant 6；Atomization plant includes high-pressure pump 61, air compressor machine 62 and atomization conduit and atomizer；Gu
Liquid-gas separation device 7 includes top inlet, and range of atomization 71 is provided with below top inlet, and the lower section of range of atomization 71 is provided with static pressure expansion
Hold area 72, the circulation area in static pressure dilatation area 72 is more than the circulation area of range of atomization 71, and the bottom of static pressure dilatation area 72 sets ash discharge
Mouth 77, the side of static pressure dilatation area 72 are provided with gas vent, and gas outlet sets sound reflecting homogenizing plate 74, solid-liquid-gas separation dress
Put 7 and be internally provided with sound-producing device 73；Atomization plant 6 is arranged at the top inlet of solid-liquid-gas separating device 7, solid-liquid-gas separation dress
7 gas vent is put by pipeline 8 with dust arrester 9 to be connected.
The present apparatus is first delivered to waste liquid in preliminary sedimentation tank 2 by waste liquid conveying equipment 1 during operation, in preliminary sedimentation tank
Carry out the top waste water after preliminary sedimentation in 2 to enter in buffer pool 4, the waste water in buffer pool 4 is atomized by atomization plant 6
(I is waste water approach axis), atomization plant 6 is due to being arranged at the top inlet of solid-liquid-gas separating device 7, therefore consolidating after atomization
Liquid mixing droplet is declined at top inlet.Simultaneously high temperature gas flow is passed through at the top inlet of solid-liquid-gas separating device 7
Moisture evaporation in most of droplet after atomization has been obtained salinity crystal fine grain by (II is air-flow approach axis), these
Salinity crystal fine grain is sent together with the contaminant particles in air-flow and a small amount of droplet for having little time evaporation by sound-producing device 73
High strong sound wave strong disturbance and constantly condense to form larger reunion wrappage, these wrappages due to quality increase and accelerate
Sink, when these wrappages enter static pressure dilatation area 72 by range of atomization 71, the sky bigger due to having abruptly entered circulation area
Between, cause it to enter stall conditions and accelerate to sink, eventually arrive at ash hole 77 and discharge.The water vapour formed is evaporated with more
The air-flow of cleaning reaches dust arrester 9 through piping 8 after being flowed by sound reflecting homogenizing plate 74 and carries out further dedusting.
Embodiment 2
As shown in Fig. 2 it is the Zero discharge processing unit schematic diagram provided in the present embodiment, it can be seen that it is in reality
Apply and further improvement has been carried out on the basis of example 1, wherein waste liquid conveying equipment 1 includes slurries pump 11, water-supply-pipe 12 and decompression
Current equalizer 13, decompression current equalizer 13 are arranged at the water delivery exit of water-supply-pipe 12, and the decompression current equalizer 13 is to water-supply-pipe
The gradual dilatation in 12 ends forms pressure buffer area, and sets one or more layers to have the hole of uniform punching rate in pressure buffer area
Plate, the liquid pressure-reducing for making to flow out in water-supply-pipe 12 slow down and flowed by orifice plate.Waste water enters preliminary sedimentation after depressurizing and flowing
Pond 2, so as to be more beneficial for precipitation of the waste water in preliminary sedimentation tank 2.Grout outlet is provided with the bottom of preliminary sedimentation tank 2, is connected below grout outlet
Be connected to out sizing device 21, the precipitation in preliminary sedimentation tank 2 can be cleared up, and go out sizing device 21 be by upper and lower valve and its it
Between connect setting bulk cement storage tank composition, can by control upper and lower valve in preliminary sedimentation tank 2 sediment carry out periodicity row
Go out, while the setting of upper and lower valve and middle bulk cement storage tank is advantageously in the flexible discharge of sediment.Set in preliminary sedimentation tank 2
Agitator 22, can at the uniform velocity be stirred to waste water therein, make precipitation evenly；Set between preliminary sedimentation tank 2 and buffer pool 4
First filter 3 is equipped with, preliminary sedimentation tank 2 is connected by first filter 3 with buffer pool 4, and so the waste water after precipitation can be entered
The preliminary filtering of row；The second filter 51 and heater 52 are provided with water-supply-pipe 5, it is therefore intended that set the second filter 51 can be with
Solia particle and macromolecular substances in further filtered wastewater, first filter 3 can be made during actual use
For primarily efficient filter, and the second filter 51 can be used as medium air filtration, can preferably be carried out by filtering waste water twice
Later stage is atomized and dedusting.Heater 52 can be used for preheating waste water when high temperature gas flow temperature is inadequate, so as to ensure evaporation
Process is smoothed out.
Sound-producing device includes Frequency Adjustable high-intensity sound wave, acoustic conducting pipe and control system in the present embodiment, wherein controlling
System processed controls sonic generator sounding, while can set the parameters such as different audible frequencies and the time of sonic generator,
The sound wave that sonic generator is sent is sent out by acoustic conducting pipe, and wherein acoustic conducting pipe may be set to tubaeform, preferably make sound wave
Diffusion.Sound-producing device in the present embodiment is provided with two, respectively the first sound-producing device 731 and the second sound-producing device 732,
Diverse location sets sound-producing device to strengthen sound wave effect, can set multiple hairs as needed in actual use
Acoustic device, and each sound-producing device sounding power is 10000-30000 watts, audible frequency 30-300Hz, can send difference
The sound wave of frequency range, can make to produce interaction between different sound waves and further promote to form wrappage.Sound-producing device is set
In range of atomization 71 or range of atomization 71 and the join domain in static pressure dilatation area 72, the acoustic conducting pipe of sound-producing device is preferably arranged at solid-liquid
On the inwall of air separation 7, it is ensured that sound wave is acted on droplet to greatest extent.Sound reflecting is flowed in the present embodiment
Plate 74 is made up of top perforate, the bilayer of bottom not perforate or multi-layer sheet, gap between different laminates be present, hole is in different laminates
On be distributed by the way of Heterogeneous Permutation, this setup can play current balance function to the high temperature gas flow passed through well,
And sound wave can then be reflected back well, so as to reach the effect for effectively flowing and at utmost utilizing sound wave.Ash discharge
Mouthfuls 77 have been provided below ash discharging gear 78, ash discharging gear 78 by upper and lower valve and its between the bulk cement storage tank that sets form, Neng Goufang
Just control out ash quantity and transport in time.The gas outlet of solid-liquid-gas separating device 7 be provided with temperature sensor 75 with it is wet
Sensor 76 is spent, dust content detector 81 is provided with the pipeline 8 that solid-liquid-gas separating device 7 is connected with dust arrester 9, can
Running status is detected in actual moving process, adjusts operational factor in real time, reaches efficient dedusting, scale removal and removal of impurities
Effect；External pipe interface 10 is provided with the top inlet of solid-liquid-gas separating device 7, can be with the external pipe for being passed through high temperature gas flow
Road；Dust arrester 9 can be electrostatic precipitator or sack cleaner, can be selected according to actual use.The present invention provides
Device can be good at disposing waste liquid and meanwhile can to external high temperature gas flow carry out purifying and dedusting, reach multinomial synchronization process
Effect.
Embodiment 3
So that certain power plant 1000MW generator set desulfurizations waste water uses Zero discharge processing unit provided by the invention as an example, carry out
The specific processing method of Zero discharge processing unit provided by the invention illustrates.Specifically include following steps：
(1) by the desulfurization wastewater after desulfurizing tower desulfurization by slurries pump 11 by water-supply-pipe 12 through depressurize current equalizer 13
Slow down and preliminary sedimentation tank 2 is reached after flowing, carrying out at the uniform velocity stirring by agitator 22 in preliminary sedimentation tank 2 make it that precipitation distribution is more equal
Even, the upper clear supernate after preliminary sedimentation separation reaches buffer pool 4 after the filtering of first filter 3.
(2) waste water in buffer pool 4 is transported to atomization by high-pressure pump 61 after the filtering of the second filter 51 by flow pipe 5
Pipeline, air compressor machine 62 are connected with atomizer, and air compressor machine 62 produces a large amount of compressed airs, in being total to for high-pressure pump 61 and air compressor machine 62
Under same-action, waste water is atomized the solid-liquid mixing droplet that nozzle atomization nebulizes.
(3) vaporific solid-liquid mixing droplet enters in the range of atomization 71 of solid-liquid-gas separating device 7, in extension tube attached pipeline joint
In the presence of the 10 flue high temperature flue gas streams connect, moisture heating evaporation, in the salinity crystal fine grain, flue gas in droplet
Contaminant particles and a small amount of liquid mist for having little time evaporation along flue gas stream advances when be fixed on two sounding of wall panel and fill
Put the 731 and 732 high strong sound wave strong disturbances sent and constantly condense to form larger reunion wrappage.Sound-producing device institute sounding
Power is arbitrarily adjusted between 10000-30000 watts, and audible frequency is arbitrarily adjusted between 30-300Hz.
(4) after the larger reunion wrappage condensed reaches static pressure dilatation area 72, cause because circulation area increases suddenly
Under the synergy of the factors such as stall sinking, terrestrial gravitation, aggravation is fallen at ash hole 77.
(5) vapor that the waste water evaporated is formed passes through uniform after sound reflecting homogenizing plate 74 with more clean flue gas stream
Dust arrester 9 (being electrostatic precipitator in the present embodiment) is reached, the high strong sound wave that sound-producing device 731 and 732 is sent is by sound reflecting
Homogenizing plate 74 is reflected to strengthen the energy of high strong sound wave, reduces the loss of acoustic wave energy.
(6) preliminary sedimentation tank 2 connects out sizing device 21 below, when the high useless slurry mistake of the solid content that the bottom of preliminary sedimentation tank 2 precipitates
When more, the upper valve of sizing device 21 is opened out, the useless slurry in preliminary sedimentation tank 2 is flowed in slurry can；When slurry can is filled with useless slurry, close
The upper valve of sizing device 21 is closed out, opens out the lower valve of sizing device 21, useless slurry realization is outer to arrange and transport.
(7) ash discharging gear 78 that ash hole 77 connects below, when the lime-ash to be precipitated at ash hole 77 is excessive, open
The upper valve of ash discharging gear 78, lime-ash are dropped in bulk cement storage tank；When bulk cement storage tank is filled with lime-ash, the upper valve of ash discharging gear 78 is closed
Door, lower valve is opened, lime-ash realization is outer to arrange and transport.
(8) temperature sensor 75, wet is fixed with the wall panel near the sound reflecting homogenizing plate 74 of gas outlet
Dust content detector 81 is provided with degree sensor 76, pipeline 8；When temperature sensor 75 senses that flue temperature is inadequate,
Electric signal is exported to PLC and controls heater 52 to start heating by PLC；When humidity sensor 76 senses flue water capacity mistake
Gao Shi, electric signal is exported to PLC and controls sound-producing device 73 to improve sounding power by PLC；When dust content detector 81 is felt
Should arrive dust burdening it is too high when, export electric signal to PLC and control high-pressure pump 61 to improve pump water pressure by PLC.
Claims (18)
1. a kind of Zero discharge processing unit, it is characterised in that including waste liquid conveying equipment（1）, preliminary sedimentation tank（2）, buffer pool
（4）, atomization plant（6）, solid-liquid-gas separating device（7）And dust arrester（9）；Wherein waste liquid conveying equipment（1）The water delivery of itself
Pipe（12）Stretch to preliminary sedimentation tank（2）Inside, preliminary sedimentation tank（2）With buffer pool（4）Connection, buffer pool（4）Pass through flow pipe（5）With mist
Change equipment（6）It is connected；Solid-liquid-gas separating device（7）Including top inlet, range of atomization is provided with below top inlet（71）, atomization
Area（71）Lower section is provided with static pressure dilatation area（72）, static pressure dilatation area（72）Circulation area be more than range of atomization（71）Circulating face
Product, static pressure dilatation area（72）Bottom sets ash hole（77）, static pressure dilatation area（72）Side is provided with gas vent, gas vent
Place sets sound reflecting homogenizing plate（74）；Solid-liquid-gas separating device（7）It is internally provided with sound-producing device（73）；Atomization plant（6）If
It is placed in solid-liquid-gas separating device（7）At top inlet, solid-liquid-gas separating device（7）Gas vent pass through pipeline（8）With dedusting
Device（9）It is connected.
2. Zero discharge processing unit according to claim 1, it is characterised in that waste liquid conveying equipment（1）Including slurry
Liquid pump（11）And water-supply-pipe（12）.
3. Zero discharge processing unit according to claim 2, it is characterised in that waste liquid conveying equipment（1）Also include
Depressurize current equalizer（13）, wherein depressurizing current equalizer（13）It is arranged at water-supply-pipe（12）Water delivery exit.
4. Zero discharge processing unit according to claim 3, it is characterised in that the decompression current equalizer（13）It is right
Water-supply-pipe（12）The gradual dilatation in end forms pressure buffer area, and sets one or more layers to have uniformly perforation in pressure buffer area
The orifice plate of rate, makes water-supply-pipe（12）The liquid pressure-reducing of middle outflow slows down and flowed by orifice plate.
5. Zero discharge processing unit according to claim 1, it is characterised in that dust arrester（9）For electrostatic precipitation
Device or sack cleaner.
6. Zero discharge processing unit according to claim 1, it is characterised in that preliminary sedimentation tank（2）Pass through the first filtering
Device（3）With buffer pool（4）It is connected.
7. Zero discharge processing unit according to claim 1, it is characterised in that preliminary sedimentation tank（2）In be provided with stirring
Device（22）.
8. Zero discharge processing unit according to claim 1, it is characterised in that solid-liquid-gas separating device（7）Top
Porch is provided with external pipe interface（10）.
9. Zero discharge processing unit according to claim 1, it is characterised in that preliminary sedimentation tank（2）Bottom is provided with out
Mouth is starched, sizing device is connected with out below grout outlet（21）, go out sizing device（21）By upper and lower valve and its between the bulk cement storage tank that sets
Composition.
10. Zero discharge processing unit according to claim 1, it is characterised in that flow pipe（5）On be provided with second
Filter（51）.
11. Zero discharge processing unit according to claim 1, it is characterised in that flow pipe（5）On be provided with heating
Device（52）.
12. Zero discharge processing unit according to claim 1, it is characterised in that atomization plant（6）Including high-pressure pump
（61）, air compressor machine（62）, atomization conduit and atomizer.
13. Zero discharge processing unit according to claim 1, it is characterised in that sound-producing device（73）Sent out including sound
Raw device, acoustic conducting pipe and control system.
14. Zero discharge processing unit according to claim 13, it is characterised in that sound-producing device（73）It is arranged at mist
Change area（71）Interior or range of atomization（71）With static pressure dilatation area（72）Junction, the acoustic conducting pipe of sound-producing device is arranged at solid-liquid qi leel
From device（7）Inside panel on, sound-producing device set quantity be one or more.
15. Zero discharge processing unit according to claim 1, it is characterised in that sound reflecting homogenizing plate（74）By upper
Portion's perforate, the bilayer of bottom not perforate or multi-layer sheet are formed, and gap between different laminates be present, hole is on different laminates using mistake
The mode of position arrangement is distributed.
16. Zero discharge processing unit according to claim 1, it is characterised in that ash hole（77）It is provided below
Ash discharging gear（78）, ash discharging gear（78）By upper and lower valve and its between the bulk cement storage tank that sets form.
17. Zero discharge processing unit according to claim 1, it is characterised in that gas outlet is provided with temperature
Sensor（75）With humidity sensor（76）, solid-liquid-gas separating device（7）With dust arrester（9）Connected pipeline（8）Middle setting
There is dust content detector（81）.
18. the processing method of the Zero discharge processing unit described in claim 1, it is characterised in that comprise the following steps：
Step 1, pass through waste liquid conveying equipment（1）Waste liquid is delivered into preliminary sedimentation tank（2）In, in preliminary sedimentation tank（2）Middle carry out preliminary sedimentation
Top waste water afterwards enters buffer pool（4）In；
Step 2, buffer pool（4）In waste water pass through atomization plant（6）Be atomized, the solid-liquid mixing droplet after atomization from
Declined at top inlet；
Step 3, from solid-liquid-gas separating device（7）Top inlet to range of atomization（71）High temperature gas flow is passed through by after atomization
Moisture evaporation in most of droplet, salinity crystal fine grain is obtained, these salinity crystal fine grains are together with high temperature gas flow
Contaminant particles and a small amount of droplet for having little time evaporation are by sound-producing device（73）The high strong sound wave strong disturbance sent without
Disconnected cohesion forms larger reunion wrappage, and these wrappages accelerate to sink because quality increases；
Step 4, wrappage is by range of atomization（71）Into static pressure dilatation area（72）When, it is bigger due to having abruptly entered circulation area
Space, cause its enter stall conditions and accelerate to sink, eventually arrive at ash hole（77）Discharge；
Step 5, the water vapour of formation is evaporated as the air-flow more cleaned passes through sound reflecting homogenizing plate（74）By pipe after flowing
Road（8）Reach dust arrester（9）Carry out further dedusting.
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| CN106823665B (en) * | 2016-12-29 | 2022-10-18 | 中国计量大学 | Acoustic agglomeration device based on perforated plate vibration and dust removal method thereof |
| CN107158856A (en) * | 2017-05-25 | 2017-09-15 | 华北电力大学 | A kind of method that chemical agglomeration joint acoustic agglomeration removes coal-fired flue-gas tiny particles content |
| 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 |
| CN109557062A (en) * | 2018-12-10 | 2019-04-02 | 徐州工程学院 | A kind of desulfurization wastewater drop evaporation test device and test method |
| CN110937747A (en) * | 2019-12-23 | 2020-03-31 | 大唐郓城发电有限公司 | Desulfurization wastewater zero-discharge treatment device and method |
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| RU2150433C1 (en) * | 1999-10-06 | 2000-06-10 | Селиванов Николай Павлович | Chemical water treatment process |
| KR100978125B1 (en) * | 2009-11-13 | 2010-08-25 | 주식회사 부강테크 | Wastewater treatment appliance capable of producing biogas and liquid fertilizer with high quality and improving water qulaity on discharging |
| CN203904135U (en) * | 2014-06-25 | 2014-10-29 | 苏州帝瀚环保科技有限公司 | Low-temperature separation system for waste emulsified oil |
| CN104193134B (en) * | 2014-08-15 | 2016-04-13 | 诸暨洁球环保科技有限公司 | A kind of Floatation Thickening Sludge device |
| CN205115207U (en) * | 2015-10-13 | 2016-03-30 | 南京常荣声学股份有限公司 | Waste liquid zero release processing apparatus |
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Denomination of invention: Waste-liquid zero-discharge processing apparatus and waste-liquid processing method Effective date of registration: 20181115 Granted publication date: 20180202 Pledgee: Jiangsu bank Limited by Share Ltd Nanjing rain flower branch Pledgor: NANJING CHANGRONG ACOUSTIC CO., LTD. Registration number: 2018320000302 |
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Date of cancellation: 20200103 Granted publication date: 20180202 Pledgee: Jiangsu bank Limited by Share Ltd Nanjing rain flower branch Pledgor: NANJING CHANGRONG ACOUSTIC CO., LTD. Registration number: 2018320000302 |