CN206549394U - A kind of spray drying FGD process system of sound wave auxiliary - Google Patents
A kind of spray drying FGD process system of sound wave auxiliary Download PDFInfo
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- CN206549394U CN206549394U CN201720264151.7U CN201720264151U CN206549394U CN 206549394 U CN206549394 U CN 206549394U CN 201720264151 U CN201720264151 U CN 201720264151U CN 206549394 U CN206549394 U CN 206549394U
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Abstract
A kind of spray drying FGD process system of sound wave auxiliary of the present utility model is made up of absorber, bipolar charge device, cyclone separator, quick lime storehouse, quicklime slaking groove, lime white liquid bath, centrifugal pump and air-introduced machine.Gas Vibration is driven using sound wave, and liquid particles thing keeps geo-stationary in the presence of inertia, so that the mass transfer between strengthening gas-liquid, reduces and reduces contact chamber（Absorber in other words）Size；Increase the particle diameter of Desulphurization using bipolar charge turbulent flow coagulating technique, improve the efficiency of dust collection of gas.The utility model has the effect of process intensification.
Description
Technical field
The present invention relates to the spray drying FGD process system in fume treatment field, more particularly to a kind of sound wave auxiliary.
Background technology
Spray drying FGD process, which is also known as semidry method washing desulphurization, have been developed rapidly in the mid-1970s to latter stage
Come.In the method, SO2The Ca (OH) being atomized2Slurries or Na2CO3Solution absorbs；Meanwhile, the higher flue gas of temperature is done
Dry drop, forms solid dust, can be trapped by sack cleaner or electric cleaner.The technological operation is simple, in the absence of pollution
Waste water, reduce flue gas and reheat system.Spray drying FGD process occupies a tiny space in flue gas desulfurization technique.
In order to effectively remove SO2, spray drying contact chamber, flue gas stream distribution apparatus and atomizer are most important components, wherein
Contact chamber is necessary for flue gas and provides enough residence times with droplet, therefore the space of contact chamber is larger, to reduce contact chamber（Or
Person says absorber）Size, it is necessary to strengthen infiltration rate.
Sound wave（Sound Wave or Acoustic Wave）It is the mode of propagation of sound, sound wave is a kind of mechanical wave, by
Object（Sound source）Vibration is produced.Propagation of the sound wave in gas can cause the vibration of gas, for having certain grain in gas
The solid and liquid particles in footpath, because the effect of inertia tends not to be maintained at original position with Gas Vibration.Gas
With this non synchronous vibration of particle so that generate relative motion between gas and particle, the mistake of gas is absorbed for particle
The renewal speed on reinforcing particle, especially liquid particles surface is capable of in Cheng Eryan, this relative motion, is absorbed so as to strengthen
Journey.
Bipolar charge-turbulent flow coagulating technique is the parallel channels by one group of positive and negative electric field action, and gas containing dust granules leads to
When crossing parallel channels, positive and negative by its passage obtains positive charge and negative electrical charge respectively, subsequently into turbulent flow coalescence section coalescence.It is double
Pole electrically charged particle realizes the conveying and mixing of space large scale under turbulent flow, in the collision of Kolmogorov yardsticks, coalescence, and
Coulomb force plays the particle diameter that facilitation increases particle in short distance to particle coalescence, is conducive to the removing of particle.
The content of the invention
The technical problems to be solved by the invention are that a kind of spraying of sound wave auxiliary is provided for the above-mentioned state of the art
Seasoning flue gas desulphurization system, strengthens the infiltration rate of spray drying FGD process process, by double using the effect of sound wave
Extremely charged-turbulent flow coagulating technique increases the removal efficiency of sweetening process particulate matter, to strengthen spray drying FGD process process.
The spray drying process flue gas that the technical scheme that present invention solution above-mentioned technical problem is used aids in for a kind of sound wave
Desulphurization system, it is characterised in that：Described system is by absorber 1, bipolar charge device 2, cyclone separator 3, quick lime storehouse 4, life
Lime slaking tank 5, lime white liquid bath 6, centrifugal pump 7 and air-introduced machine 8 are constituted；Described absorber 1 is transformed by a cyclone separator
And obtain, thus absorber 1 has the cyclone separator air inlet, air outlet and the ash hole that have, the content bag of described transformation
Include：4 sonic generator 1-2 and 4 shower nozzle 1-3,4 shower nozzles are provided with the top annular cover plate 1-1 of cyclone separator
1-3 is connected by ring pipe 1-4；Described bipolar charge device 2 is by rectangular tube 2-1, central dividing plate 2-2, binding post 2-3 and copper
Silk 2-4 is constituted, and described central dividing plate 2-2 is vertically set on rectangular tube 2-1 centre the rectangular tube is isolated into first
Rectangular channel 2-5 and the second rectangular channel 2-6,3 are each provided with the first rectangular channel 2-5 and the second rectangular channel 2-6
Copper wire 2-4, every copper wire 2-4 upper end are provided with binding post 2-3, every copper wire 2-4 lower end and rectangular tube 2-1 insulate；
Described cyclone separator 3 has air inlet, air outlet and ash hole；Described quick lime storehouse 4 is provided with the first charging above
Mouth and the second charge door, are provided below discharging opening；Described quicklime slaking groove 5 is provided with charging aperture and water inlet above,
Upper side is provided with discharging opening, is internally provided with agitator；The lime white liquid bath 6 is provided with charging aperture, lower side above
Face is provided with discharging opening；Described centrifugal pump 7 is provided with inlet and outlet；Described air-introduced machine 8 is provided with air inlet and air-out
Mouthful；The air outlet of described absorber 1 is connected by the first pipeline with one end of bipolar charge device 2, described bipolar charge device 2
The other end directly connected with the air inlet of cyclone separator 3, the air outlet of described cyclone separator 3 by the second pipeline with
The air inlet connection of air-introduced machine 8, the ash hole of described cyclone separator 3 adds by the first of the 3rd pipeline and quick lime storehouse 4
Material mouth is connected, and the discharging opening in described quick lime storehouse 4 is connected by the 4th pipeline with the charging aperture of quicklime slaking groove 5, described
The discharging opening of quicklime slaking groove 5 connected by the 5th pipeline with the charging aperture of lime white liquid bath 6, described lime white liquid bath
6 discharging opening passes through the 7th pipeline and suction by the 6th pipeline and the inlet communication of centrifugal pump 7, the outlet of described centrifugal pump 7
Receive the ring pipe 1-4 of device 1 any part connection.
As an improvement, 4 sonic generator 1-2 of described absorber 1 are uniform using the central shaft of absorber 1 as symmetry axis
It is distributed on annular cover plate 1-1；4 shower nozzle 1-3 of described absorber 1 uniformly divide using the central shaft of absorber 1 as symmetry axis
Cloth is below annular cover plate 1-1, and than 4 sonic generator 1-2 of 4 shower nozzle 1-3 are closer to the central shaft of absorber 1.
Improve again, 3 copper wire 2-4 loading direct current positive electricity in the first rectangular channel 2-5 of described bipolar charge device 2
Pressure, voltage range is+10 ~+50 kV；3 copper wire 2-4 loading direct currents in second rectangular channel 2-6 of bipolar charge device 2 are born
Voltage, voltage range is -10 ~ -50 kV.
Further to improve, the frequency of sound wave of 4 described sonic generator 1-2 is consistent, frequency range is 800 ~
3000 Hz；The sound pressure level of 4 described sonic generator 1-2 is consistent, and sound pressure level scope is 80 ~ 140 dB.
The beneficial effects of the invention are as follows：Gas Vibration is driven using sound wave, and liquid particles thing is protected in the presence of inertia
Geo-stationary is held, so as to strengthen the mass transfer between gas-liquid in the absorption process of spray drying FGD process, reduces reduction and connects
Touch room（Absorber in other words）Size；Increase the particle diameter of Desulphurization using bipolar charge-turbulent flow coagulating technique, improve gas
Efficiency of dust collection.
Brief description of the drawings
Fig. 1 is a kind of schematic flow sheet of the spray drying FGD process system of sound wave auxiliary of the present invention.
Fig. 2 is the schematic elevation view of the absorber of the present invention.
Fig. 3 is the schematic top plan view of the absorber of the present invention.
Fig. 4 is the schematic perspective view of the bipolar charge device of the present invention.
Wherein：1 is absorber, and 2 be bipolar charge device, and 3 be cyclone separator, and 4 make a living lime silo, and 5 be quicklime slaking
Groove, 6 be lime white liquid bath, and 7 be centrifugal pump, and 8 be air-introduced machine, and 1-1 is annular cover plate, and 1-2 is sonic generator, and 1-3 is shower nozzle,
1-4 is ring pipe, and 2-1 is rectangular tube, and 2-2 is central dividing plate, and 2-3 is binding post, and 2-4 is copper wire, and 2-5 is logical for the first rectangle
Road, 2-6 is the second rectangular channel.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.1 the present invention is described in further detail by embodiment below with reference to the accompanying drawings.
Embodiment 1
A kind of spray drying FGD process system of sound wave auxiliary is by absorber 1, bipolar charge device 2, cyclone separator
3rd, quick lime storehouse 4, quicklime slaking groove 5, lime white liquid bath 6, centrifugal pump 7 and air-introduced machine 8 are constituted；Absorber 1 is by a whirlwind point
Transform and obtain from device, thus absorber 1 has air inlet, air outlet and the ash hole that cyclone separator has, the content of transformation
Including：4 sonic generator 1-2 and 4 shower nozzle 1-3,4 sprays are provided with the top annular cover plate 1-1 of cyclone separator
Head 1-3 is connected by ring pipe 1-4, and 4 sonic generator 1-2 of absorber 1 are uniform using the central shaft of absorber 1 as symmetry axis
It is distributed on annular cover plate 1-1,4 shower nozzle 1-3 of absorber 1 are evenly distributed on ring using the central shaft of absorber 1 as symmetry axis
Below shape cover plate 1-1, and than 4 sonic generator 1-2 of 4 shower nozzle 1-3, closer to the central shaft of absorber 1,4 sound waves are sent out
Raw device 1-2 frequency of sound wave is consistent, and frequency is 800 Hz, and 4 sonic generator 1-2 sound pressure level is consistent, acoustic pressure
For 140 dB；Bipolar charge device 2 is made up of rectangular tube 2-1, central dividing plate 2-2, binding post 2-3 and copper wire 2-4, central dividing plate
2-2 is vertically set on rectangular tube 2-1 centre the rectangular tube is isolated into the first rectangular channel 2-5 and the second rectangular channel
2-6, is each provided with 3 copper wire 2-4, every copper wire 2-4 upper end in the first rectangular channel 2-5 and the second rectangular channel 2-6
The lower end and rectangular tube 2-1 for being provided with binding post 2-3, every copper wire 2-4 are insulated, the first rectangular channel of bipolar charge device 2
3 copper wire 2-4 loading direct-flow positive voltages in 2-5, voltage range is+10 kV, the second rectangular channel 2-6 of bipolar charge device 2
Interior 3 copper wire 2-4 loading negative DC voltages, voltage range is -10 kV；Cyclone separator 3 have air inlet, air outlet and
Ash hole；Quick lime storehouse 4 is provided with the first charge door and the second charge door above, and discharging opening is provided below；Quicklime slaking
Groove 5 is provided with charging aperture and water inlet above, and upper side is provided with discharging opening, is internally provided with agitator；The lime white
Liquid bath 6 is provided with charging aperture above, and lower side is provided with discharging opening；Centrifugal pump 7 is provided with inlet and outlet；Air-introduced machine 8 is set
It is equipped with air inlet and air outlet；The air outlet of absorber 1 is connected by the first pipeline with one end of bipolar charge device 2, bipolar lotus
The other end of electrical equipment 2 is directly connected with the air inlet of cyclone separator 3, the air outlet of cyclone separator 3 by the second pipeline with
The air inlet connection of air-introduced machine 8, the ash hole of cyclone separator 3 is connected by the 3rd pipeline and first charge door in quick lime storehouse 4
Logical, the discharging opening in quick lime storehouse 4 is connected by the 4th pipeline with the charging aperture of quicklime slaking groove 5, and quicklime slaking groove 5 goes out
Material mouth is connected by the 5th pipeline with the charging aperture of lime white liquid bath 6, the discharging opening of lime white liquid bath 6 by the 6th pipeline with from
The inlet communication of heart pump 7, the outlet of centrifugal pump 7 is connected by any part of the 7th pipeline and the ring pipe 1-4 of absorber 1
It is logical.
A kind of course of work of the spray drying FGD process system of sound wave auxiliary is as follows：Flue gas passes through absorber 1
Air inlet enters absorber 1, and because absorber 1 is that have cyclone separator transformation, therefore flue gas revolves inside absorber 1
Turn；Quick lime adds quick lime storehouse 4 by second charge door in quick lime storehouse 4, after quicklime slaking is entered by the 4th pipeline
Groove 5, water enters from the water inlet of quicklime slaking groove 5, stirring effect quick lime in the digested generation of quicklime slaking groove 5
Ca(OH)2Saturated solution, the solution discharges the 6th pipeline by the 5th pipeline via centrifugal pump 7, from the 6th Pipeline transport
Ca (OH)2Saturated solution enters after ring pipe 1-4 in from 4 shower nozzle 1-3 spray to absorber 1；Flue gas in absorber 1
In SO2The lime slurry that gas is sprayed absorbs to form CaSO3Solution, in the process 4 sonic generator 1-2 send
Heat transfer in sound wave reinforcing absorption process, flue gas is to CaSO3Moisture evaporation formation CaSO in solution3Particle, CaSO3Particle
In relatively large particle discharged by the cyclonic separation of absorber 1 formation Desulphurization, and from the ash discharging hole of absorber 1；CaSO3Particle
In relatively small particle have little time to separate in absorber 1, here it is worth noting that these little particles are due in absorber 1
Residence time short absorption process carry out and insufficient, thus contain more Ca (OH)2, so needing to recycle；Small
Grain, as air-flow enters bipolar charge device 2, is divided into two strands of dust-contained airflows, wherein of one dust-contained airflow by the first pipeline
Negative electrical charge on positive charge on grain lotus, the particle lotus of another strand of dust-contained airflow, the ash-laden gas that above-mentioned two bursts of lotuses have different electric charges is flowed into
Enter cyclone separator 3 in the presence of whirlwind, the particle that lotus has opposed polarity is mutually collided, coalescence, separation, most of particle
The ash hole of cyclone separator 3 is fallen into, and quick lime storehouse 4 is entered by the 3rd pipeline（To recycle）, it is de- after purification
Sulphur flue gas by the second pipeline enter air-introduced machine 8, after be discharged into other workshop sections from air-introduced machine.
Embodiment 2
4 sonic generator 1-2 frequency of sound wave is consistent in the present embodiment, and frequency is 3000 Hz, 4 sound wave hairs
Raw device 1-2 sound pressure level is consistent, and acoustic pressure is 3 copper wire 2- in 80 dB, the first rectangular channel 2-5 of bipolar charge device 2
4 loading direct-flow positive voltages, voltage range is that 3 copper wire 2-4 in+50 kV, the second rectangular channel 2-6 of bipolar charge device 2 add
Negative DC voltage is carried, voltage range is -50 kV；Remaining content is consistent with embodiment 1.
Embodiment 3
4 sonic generator 1-2 frequency of sound wave is consistent in the present embodiment, and frequency is 2000 Hz, 4 sound wave hairs
Raw device 1-2 sound pressure level is consistent, and acoustic pressure is 3 copper wires in 140 dB, the first rectangular channel 2-5 of bipolar charge device 2
2-4 loads direct-flow positive voltage, and voltage range is 3 copper wire 2-4 in+20 kV, the second rectangular channel 2-6 of bipolar charge device 2
Negative DC voltage is loaded, voltage range is -10 kV；Remaining content is consistent with embodiment 1.
Embodiment 4
4 sonic generator 1-2 frequency of sound wave is consistent in the present embodiment, and frequency is 1000 Hz, 4 sound wave hairs
Raw device 1-2 sound pressure level is consistent, and acoustic pressure is 3 copper wires in 100 dB, the first rectangular channel 2-5 of bipolar charge device 2
2-4 loads direct-flow positive voltage, and voltage range is 3 copper wire 2-4 in+25 kV, the second rectangular channel 2-6 of bipolar charge device 2
Negative DC voltage is loaded, voltage range is -20 kV；Remaining content is consistent with embodiment 1.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (4)
1. a kind of spray drying FGD process system of sound wave auxiliary, it is characterised in that：Described system is by absorber, bipolar
Charge electric appliance, cyclone separator, quick lime storehouse, quicklime slaking groove, lime white liquid bath, centrifugal pump and air-introduced machine composition；Described
Absorber is transformed by a cyclone separator and obtained, thus absorber has the air inlet, air outlet and go out that cyclone separator has
Grey mouth, the content of described transformation includes：4 sonic generators and 4 are provided with the top annular cover plate of cyclone separator
Individual shower nozzle, 4 shower nozzles are connected by ring pipe；Described bipolar charge device is by rectangular tube, central dividing plate, binding post and copper wire
Constitute, described central dividing plate is vertically set on the centre of rectangular tube the rectangular tube is isolated into the first rectangular channel and the
Two rectangular channels, are each provided with 3 copper wires in the first rectangular channel and the second rectangular channel, and the upper end of every copper wire is provided with
Binding post, lower end and the rectangle pipe insulation of every copper wire；Described cyclone separator has air inlet, air outlet and ash discharge
Mouthful；The first charge door and the second charge door are provided with above described quick lime storehouse, discharging opening is provided below；Described life stone
Charging aperture and water inlet are provided with above grey digestive shelf, upper side is provided with discharging opening, is internally provided with agitator；The stone
Charging aperture is provided with above grey slurry tank, lower side is provided with discharging opening；Described centrifugal pump 7 is provided with inlet and outlet；
Described air-introduced machine is provided with air inlet and air outlet；The air outlet of described absorber passes through the first pipeline and bipolar charge device
One end connection, the described other end of bipolar charge device directly connects with the air inlet of cyclone separator, described whirlwind point
Air outlet from device is connected by the second pipeline with the air inlet of air-introduced machine, and the ash hole of described cyclone separator passes through the 3rd
Pipeline is connected with first charge door in quick lime storehouse, and the discharging opening in described quick lime storehouse passes through the 4th pipeline and quicklime slaking
The charging aperture connection of groove, the discharging opening of described quicklime slaking groove is connected by the charging aperture of the 5th pipeline and lime white liquid bath
Logical, the discharging opening of described lime white liquid bath is by the 6th pipeline and the inlet communication of centrifugal pump, the outlet of described centrifugal pump
Connected by the 7th pipeline with any part of the ring pipe of absorber.
2. system according to claim 1, it is characterised in that：4 sonic generators of described absorber are with absorber
Central shaft be evenly distributed on annular cover plate for symmetry axis；4 shower nozzles of described absorber using the central shaft of absorber as
Symmetry axis is evenly distributed on below annular cover plate, and than 4 sonic generators of 4 shower nozzles are closer to the central shaft of absorber.
3. system according to claim 1, it is characterised in that：The frequency of sound wave of 4 described sonic generators keeps one
Cause, frequency range is 800 ~ 3000 Hz；The sound pressure level of 4 described sonic generators is consistent, sound pressure level scope be 80 ~
140 dB。
4. system according to claim 1, it is characterised in that：3 in first rectangular channel of described bipolar charge device
Root copper wire loads direct-flow positive voltage, and voltage range is+10 ~+50 kV；3 copper wires in second rectangular channel of bipolar charge device
Negative DC voltage is loaded, voltage range is -10 ~ -50 kV.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720264151.7U CN206549394U (en) | 2017-03-17 | 2017-03-17 | A kind of spray drying FGD process system of sound wave auxiliary |
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| CN201720264151.7U CN206549394U (en) | 2017-03-17 | 2017-03-17 | A kind of spray drying FGD process system of sound wave auxiliary |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106731427A (en) * | 2017-03-17 | 2017-05-31 | 宁波工程学院 | A kind of spray drying FGD process system of sound wave auxiliary |
| CN109187289A (en) * | 2018-07-02 | 2019-01-11 | 清华大学 | A kind of aerosol electromobility partial size spectral measurement system and 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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2017
- 2017-03-17 CN CN201720264151.7U patent/CN206549394U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106731427A (en) * | 2017-03-17 | 2017-05-31 | 宁波工程学院 | A kind of spray drying FGD process system of sound wave auxiliary |
| CN109187289A (en) * | 2018-07-02 | 2019-01-11 | 清华大学 | A kind of aerosol electromobility partial size spectral measurement system and method |
| CN109187289B (en) * | 2018-07-02 | 2020-11-10 | 清华大学 | System and method for measuring aerosol electric mobility particle size spectrum |
| 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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