CN207769527U - A kind of device of the ultra-clean processing flue gas of the dust removal integrated wet method of desulphurization denitration - Google Patents
A kind of device of the ultra-clean processing flue gas of the dust removal integrated wet method of desulphurization denitration Download PDFInfo
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- CN207769527U CN207769527U CN201721799455.XU CN201721799455U CN207769527U CN 207769527 U CN207769527 U CN 207769527U CN 201721799455 U CN201721799455 U CN 201721799455U CN 207769527 U CN207769527 U CN 207769527U
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Abstract
The utility model discloses a kind of devices of the ultra-clean processing flue gas of the dust removal integrated wet method of desulphurization denitration, including tubular type oxidation reactor（1）, the tubular type oxidation reactor（1）Top and conveying contain SO2, NOx, dust particles the conveyance conduit for needing the flue gas of purified treatment be connected, tubular type oxidation reactor（1）Bottom setting washing packed tower（5）Lower part and washing packed tower（5）Top be arranged wet electrical dust precipitator（10）, tubular type oxidation reactor（1）, washing packed tower（5）, wet electrical dust precipitator（10）Constitute the main part of denitration desulfurizing dust-collector；The tubular type oxidation reactor（1）Pass through pipeline and ozone generator（4）It is connected, ozone generator（4）For tubular type oxidation reactor（1）Interior Strong oxdiative reaction provides ozone.Compared with existing equipment, equipment is taken up an area saves 40% or more, saves 20% or more equipment investment, 20% or more operating cost saving the device of the utility model.
Description
Technical field
The utility model is related to each class A fuel A, smeltings（It is metallurgical）, coal-fired or biomass power generation, heat at the kiln gas of class
Technical field is managed, specifically a kind of deep desulfuration denitration dust collecting that can carry out is to remove the SO in flue gas2、NOx, dust
The device of the processing flue gas ultra-clean to the dust removal integrated wet method of the desulphurization denitration of environment harmful such as grain, bioxin.
Background technology
The flue gas of all kinds of kiln discharges often contains SO2、NOxAnd it is other such as HF, HCl, H2Two kinds of S etc. or more is harmful to group to environment
Divide and dust particle, dirty flue gas adsorbing and trapping processing are always the important process process unit of flue gas cleaning treatment, method is very
It is more：Such as denitration is using SNCR methods, the high middle warm area denitration of SCR methods, low nitrogen burning etc.；The method of desulfurization has as many as tens kinds, such as
Calcium method, sodium method, ammonia process, magnesium processes, oxidized metal method, peroxide passivation, amine process, activated coke etc., washing or electrofiltration dedusting have
Wash void tower, washing plate tower, Venturi tube washing, dynamic wave scrubbing, wet electrical dust precipitator, bag filter process etc..It is domestic at present main
Introduce EDV methods, LoTOxTMMethod, WGS+Method is imitated its method and is improved, and denitration, desulfurization, dedusting are integrated into same dress
In setting, but exists and invest the problems such as huge, operating cost is high, equipment seriously corroded, inadequate processing depth.For it is economical,
Be simple and efficient, the integrated wet denitration of long-term operation, desulfurization, the ultra-clean processing of dust removal integrated wet method, be always in industry
The effort project of skilled worker.
Invention content
The purpose of this utility model is that in view of the problems of the existing technology, deep desulfuration denitration can be carried out by providing one kind
Dedusting is to remove the SO in flue gas2、NOx, dust particles, bioxin etc. it is dust removal integrated to the desulphurization denitration of environment harmful wet
The device of the ultra-clean processing flue gas of method.
The purpose of this utility model solves by the following technical programs：
A kind of device of the ultra-clean processing flue gas of the dust removal integrated wet method of desulphurization denitration, including tubular type oxidation reactor, it is special
Sign is：Contain SO with conveying in the top of the tubular type oxidation reactor2, NOx, dust particles the flue gas that needs purified treatment
Conveyance conduit is connected, and the bottom of tubular type oxidation reactor is arranged to be set at the top of the lower part of washing packed tower and washing packed tower
Wet electrical dust precipitator is set, tubular type oxidation reactor, washing packed tower, wet electrical dust precipitator constitute the main body of denitration desulfurizing dust-collector
Part；The tubular type oxidation reactor is connected by pipeline with ozone generator, and ozone generator is tubular type oxidation reaction
Strong oxdiative reaction in device provides ozone；Contain SO2, NOx, dust particles need the flue gas of purified treatment to be sent into tubular type through pipeline
The top of oxidation reactor, the NO in the flue gas flowed from up to down in tubular type oxidation reactorxWith O3It is anti-that Strong oxdiative occurs
It answers, by NOxIt is oxidized to high-valence state compound N soluble easily in waterxOy, it is interior certainly that the flue gas after Strong oxdiative reaction enters washing packed tower
Under flow up and carry out counter current contacting reactive absorption N with the circulation fluid of addition absorbentxOy、SO2And to the dust particles in flue gas
It is washed, the fine droplets of flue gas and its entrainment after washed absorption continue upwardly into wet electrical dust precipitator, through electric discharge
Fine droplets are completely separated with particulate matter, the acid mist in flue gas under charged and electric field force effect, and ultra-clean flue gas is electric from wet type
The top discharge of deduster.
Ozone spray distribution device and spiral-flow type urgency diffusion mixer are equipped in the tubular type oxidation reactor, spiral-flow type is anxious
Diffusion mixer is located at the lower section of ozone spray distribution device, the O that ozone spray distribution device spirally sprays downwards3With from up to down
NO in the flue gas of flowingxUnder the action of spiral-flow type urgency diffusion mixer, NO can be madexWith O3Within 0.3~1.5 second time
Complete Strong oxdiative reaction.
The ozone spray distribution device is connected by pipeline with ozone generator.
The middle part of the washing packed tower is equipped with packing layer and the top of packing layer is equipped with fountain distributor, fountain point
Cloth device is connected by the cycle liquid pipe with recycle liquid pump with the circulation fluid storage tank of washing filler tower bottom；Fountain distributor
The circulation fluid for spraying addition absorbent downwards and the flue gas of bottom-up flowing carry out counter current contacting reactive absorption NxOy、SO2And it is right
Dust particles in flue gas are washed.
The filler that the packing layer uses is the structured packing of PP/PVD/PTFE materials or plate-type corrugated shape filler；It fills out
One or two layers fountain distributor is arranged in the top of the bed of material, and every layer of fountain distributor is using independent corresponding cycle therewith
Liquid pump supplies circulation fluid.
For the cycle liquid pipe by being connected at the top of shunt valve and settler or filter, settler or filter will
Dirt mud filtering in circulation fluid is discharged and filtered clear liquid is flowed back into the circulation fluid of washing filler tower bottom by clear liquid pipe
In storage tank.
The circulation fluid storage tank of the washing filler tower bottom by absorbent liquid supplementation pipe with absorbent make-up pump with inhale
It receives agent storage tank to be connected, supplementing absorbent to circulation fluid by absorbent make-up pump makes the pH value of circulation fluid be maintained at 5~10.
The circulation fluid storage tank of the washing filler tower bottom is connected with the waste liquid discharge pipe with liquid waste discharge pump.
It is equipped with baffle type defoaming device or unit mould between the top and the bottom of wet electrical dust precipitator of the washing packed tower
Block formula eddy flow dehydrator, baffle type defoaming device or cell modular eddy flow dehydrator can be by the flue gases and its folder after washing absorption
Drop of the grain size more than 5 μm or the drop containing dust particles remove in the fine droplets of band.
The top of the baffle type defoaming device or cell modular eddy flow dehydrator is equipped with flushing/shower device, and flushing/shower device can
Backwash is carried out to baffle type defoaming device or cell modular eddy flow dehydrator.
The anode tube of the wet electrical dust precipitator is anti-corrosion, conductive, flame retardant type CFRP materials honeycomb-shaped structure or anti-corrosion conjunction
Golden steel material honeycomb-shaped structure, the inscribed circle diameter of anode tube is 300mm/330mm/350mm/360mm/, anode length of tube is
4.0~6.0m；By prickle along the cathode line of fluidization treatment be the nickel-base alloy of anti-corrosion electrochemical corrosion resistant, duplex steel alloys,
Titanium alloy, lead-antimony alloy, high-voltage DC power supply application constant flow high pressure source or high frequency high voltage dc power source, the confession of wet electrical dust precipitator
Piezoelectric voltage is 40~70KV, 0.1~1.0mA/m of cathode line discharge current density；In the charged and electric field force effect of cathode line electric discharge
Under, the flue gas after washing absorption and its particle in the fine droplets of entrainment and drop are driven to anode tube, Charge particle release
Charge, dust and is flowed down by drop dissolving or the nuisance of attached collection from anode tube naturally.
Last row flue gas analyzer is equipped at the top vent of the wet electrical dust precipitator.
The shell of the tubular type oxidation reactor is made of anti-corrosion oxytolerant alloy, and the shell for washing packed tower uses
FRP, engineering plastics or steel alloy are made, and the shell of wet electrical dust precipitator uses FRP, engineering plastics or conjunction with flame-retarding characteristic
Jin Gang is made.
The utility model has the following advantages compared with prior art：
The device of the utility model can contain SO simultaneously in treatment furnace kiln gas body2、NOx, dust particle etc. flue gas,
Tubular type oxidation reactor is connected directly with washing packed tower, washs packed tower top and wet electrical dust precipitator is connected to form one
Eliminating dampness method ultra-clean processing makeup is set, the NO in treated flue gasxContent is 0~50mg/m3、SO2Content is 0~35mg/m3、
Dust particle content is 0~10mg/m3, and remove in flue gas most bioxin, with reach setting purification and washing or
Assimilation effect；Compared with conventional denitration, desulfurization, dust removing units are separately handled, equipment, which is taken up an area, saves 40% or more, saves equipment
20% or more investment, operating cost save 20% or more, have that gas cleaning intensity is high, with good investment, efficient and energy-saving effect is bright
Aobvious feature, therefore suitable for promoting the use of.
Description of the drawings
Attached drawing 1 is the structural representation of the device of the ultra-clean processing flue gas of the dust removal integrated wet method of desulphurization denitration of the utility model
Figure.
Wherein：1-tubular type oxidation reactor；2-ozone spray distribution devices；3-spiral-flow type urgency diffusion mixers；4-is smelly
Oxygen Generator；5-washing packed towers；6-packing layers；7-fountain distributors；8-baffle type defoaming devices or cell modular
Eddy flow dehydrator；9-flushing/shower devices；10-wet electrical dust precipitators；11-last row flue gas analyzers；12-settlers or filtering
Device；13-clear liquid pipes；14-recycle liquid pumps；15-liquid waste discharge pumps；16-absorbent make-up pumps；17-absorbent storage tanks.
Specific implementation mode
The utility model is further described with embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1：A kind of device of the ultra-clean processing flue gas of the dust removal integrated wet method of desulphurization denitration, including tubular type oxidation are anti-
Device 1 is answered, top and the conveying of the tubular type oxidation reactor 1 contain SO2, NOx, dust particles the flue gas for needing purified treatment it is defeated
Pipeline is sent to be connected, the bottom of tubular type oxidation reactor 1 is arranged in the lower part of washing packed tower 5 and washs the top of packed tower 5
Wet electrical dust precipitator 10 is set, and tubular type oxidation reactor 1, washing packed tower 5, wet electrical dust precipitator 10 constitute denitration desulfurization and dedusting
The main part of device；The shell of tubular type oxidation reactor 1 uses anti-corrosion oxytolerant alloy（Such as S31603, duplex steel alloys）System
At the shell for washing packed tower is made of FRP, engineering plastics or steel alloy, and the shell of wet electrical dust precipitator 10, which uses, to be carried
FRP, engineering plastics or the steel alloy of flame-retarding characteristic are made.The tubular type oxidation reactor 1 is connected by pipeline with ozone generator 4
Logical, ozone generator 4 provides ozone, O for the Strong oxdiative reaction in tubular type oxidation reactor 13Using air-source or pure oxygen air source
It is generated in ozone generator 4 by the whole DC power supply of high-frequency and high-voltage；During use：Contain SO2, NOx, dust particles need
The flue gas of purified treatment is sent into the top of tubular type oxidation reactor 1 through pipeline, and the flue gas of purified treatment is needed to refer to SO2Content be 35~
8000mg/m3、NOxContent is 50~1200mg/m3, dust particle content be 0~150mg/m3And temperature is 0~180 DEG C
Pending flue gas；NO in the flue gas flowed from up to down in tubular type oxidation reactor 1xWith O3Strong oxdiative reaction occurs, and
O in tubular type oxidation reactor 13Molar ratio with the NO in flue gas is 0.8~2.0, by NOxIt is soluble easily in water to be oxidized to high-valence state
Compound NxOy, the N of Strong oxdiative reaction generationxOyIncluding NO3、N2O5、NO2、N2O3；Flue gas after Strong oxdiative reaction, which enters, to be washed
It washs bottom-up flowing and the circulation fluid of addition absorbent in packed tower 5 and carries out counter current contacting reactive absorption NxOy、SO2And to cigarette
Dust particles in gas are washed, and the fine droplets of flue gas and its entrainment after washed absorption continue upwardly into wet type electricity
Deduster 10 is completely separated with particulate matter, the acid mist in flue gas through fine droplets under charged and electric field force effect of discharging, is surpassed
Neat stress from the top discharge of wet electrical dust precipitator 10, the ultra-clean flue gas of the top discharge of wet electrical dust precipitator 10 refers to：Processing
NO in flue gas afterwardsxContent is 0~50mg/m3、SO2Content is 0~35mg/m3, dust particle content be 0~10mg/m3.It should
Device list set processing exhaust gas volumn is 0~1600000m3/ h, if needed in the flue gas of purified treatment, dust content is excessively high, SO2Content
It is excessively high to need to use pretreatment measure.
In said structure, ozone spray distribution device 2 and spiral-flow type urgency diffusion mixer are equipped in tubular type oxidation reactor 1
3, spiral-flow type urgency diffusion mixer 3 is located at the lower section of ozone spray distribution device 2 and ozone spray distribution device 2 passes through pipeline and ozone
Generator 2 is connected, the O that ozone spray distribution device 2 spirally sprays downwards3With the NO in the flue gas that flows from up to downxIt is revolving
Under the action of streaming urgency diffusion mixer 3, NO can be madexWith O3Strong oxdiative reaction was completed within 0.3~1.5 second time.Washing is filled out
Expect that the middle part of tower 5 is equipped with packing layer 6, the filler that packing layer 6 uses is the structured packing of PP/PVD/PTFE materials or plate-type corrugated
Shape filler；The top of packing layer 6 is equipped with one or two layers fountain distributor 7, and fountain distributor 7 is by carrying recycle liquid pump
14 cycle liquid pipe is connected with the circulation fluid storage tank of 5 bottom of washing packed tower, and every layer of 7 use of fountain distributor is single therewith
Only corresponding recycle liquid pump 14 supplies circulation fluid；Fountain distributor 7 downwards spray addition absorbent circulation fluid with from it is lower to
The flue gas of upper flowing carries out counter current contacting reactive absorption NxOy、SO2And the dust particles in flue gas are washed.Recycle liquid pipe
It is connected with the top of settler or filter 12 by shunt valve, settler or filter 12 filter the dirt mud in circulation fluid
It is discharged and flows back into filtered clear liquid by clear liquid pipe 13 in the circulation fluid storage tank for washing 5 bottom of packed tower to keep cycle
The clear liquid of system recycles, and being filtered through for circulation fluid measures circulation fluid density to control solution salt degree of unsaturation, prevents filler from inhaling
Receive scrubbing tower crystallization, deposition blocks.In addition in the circulation fluid storage tank of 5 bottom of washing packed tower by carrying absorbent make-up pump 16
Absorbent liquid supplementation pipe be connected with absorbent storage tank 17, by absorbent make-up pump 16 to circulation fluid supplement absorbent to follow
The pH value of ring liquid is maintained at 5~10, and absorbent is generally alkaline absorbent or additive or dioxygen water absorbent, alkaline absorbent
Including ammonium hydroxide, sodium hydroxide solution, calcium hydroxide solution, containing magnesium oxide solution, urea liquid etc.；Wash 5 bottom of packed tower
Circulation fluid storage tank is connected with the waste liquid discharge pipe with liquid waste discharge pump 15.It is removed with wet type electricity at the top of washing packed tower 5
Baffle type defoaming device or cell modular eddy flow dehydrator 8, baffle type defoaming device or unit mould are equipped between the bottom of dirt device 10
Block formula eddy flow dehydrator 8 can by grain size in the fine droplets of flue gas and its entrainment after washing absorption more than 5 μm drop or
Drop containing dust particles removes, and the top of the baffle type defoaming device or cell modular eddy flow dehydrator 8 is equipped with flushing/shower device
9, flushing/shower device 9 can carry out backwash to keep its cleaning to exempt to tie to baffle type defoaming device or cell modular eddy flow dehydrator 8
Dirt.The anode tube of wet electrical dust precipitator 10 is anti-corrosion, conductive, flame retardant type CFRP materials honeycomb-shaped structure or corrosion resistant alloy steel material
Honeycomb-shaped structure, the inscribed circle diameter of anode tube is 300mm/330mm/350mm/360mm/, anode length of tube be 4.0~
6.0m；Along the cathode line of fluidization treatment it is that the nickel-base alloy of anti-corrosion electrochemical corrosion resistant, duplex steel alloys, titanium close by prickle
Gold, lead-antimony alloy, high-voltage DC power supply application constant flow high pressure source or high frequency high voltage dc power source, the power supply of wet electrical dust precipitator 10
Voltage is 40~70KV, 0.1~1.0mA/m of cathode line discharge current density；It discharges under charged and electric field force effect in cathode line,
Flue gas after washing absorption and its particle in the fine droplets of entrainment and drop are driven to anode tube, Charge particle release electricity
Lotus, dust and is flowed down by drop dissolving or the nuisance of attached collection from anode tube naturally.
Last row flue gas analyzer 11 is equipped at the top vent of wet electrical dust precipitator 10 simultaneously, passes through last row flue gas point
Analyzer 11 measures the NO of wet-esp exiting flue gasx、SO2, dust particle content, adjust O3The amount of feeding, the alkaline desulfurization of adjustment
Agent or the catalyst amount of feeding, 10 power supply volume of adjustment wet electrical dust precipitator, adjustment circulation fluid discharge rate so that after processing in flue gas
NOxContent is 0~50mg/m3、SO2Content is 0~35mg/m3, dust particle content be 0~10mg/m3, and remove in flue gas
Most bioxin, to reach the purification and washing or assimilation effect of setting.
The device of the utility model in use, will contain NO firstx、SO2, dust particle and other such as HF, HCl, two Evil
The flue gas of English is sent into tubular type oxidation reactor 1 through flue so that NOxWith O3Strong oxdiative reaction quickly occurs, generates soluble easily in water
Higher nitrogen oxides, the flue gas after Strong oxdiative reaction enters alkaline absorbent or addition in washing packed tower 5 and circulation fluid
Agent carries out NOx、SO2Absorption, and trapping absorption carried out to dust particle, specially flue gas occurs mass transfer in Ta Nei, passes simultaneously
The physics chemical actions such as heat, absorption, adiabatic evaporation, NxOy、SO2, the washed absorption capture purification such as soot dust granule；Wet flue gas passes through
After baffle type defoaming device or cell modular eddy flow dehydrator 8 remove big grain size drop, flue gas enters wet electrical dust precipitator 10,
Under cathodic discharge is charged and electric field force effect, particle and drop are driven to anode tube, and Charge particle discharges charge, dust and by liquid
The nuisance of drop dissolving flows down naturally from anode tube；Last row flue gas analyzer 11 is to the NO in last row flue gasx、SO2, dust particles
Object concentration is detected, and being filled out for ozone amount, adjustment washing for ozone generator 3 is adjusted by automatic or auto-manual control system
Expect that circulating fluid volume is discharged in the absorbent supply of tower 5, adjustment recycle liquid pump 14, to the NO in flue gas after control processxContent
For 0~50mg/m3、SO2Content is 0~35mg/m3, dust particle content be 0~10mg/m3, and remove exhausted big portion in flue gas
Fen bioxin, to realize the purification and washing or assimilation effect of setting.During washing the processing of packed tower 5：Recycle liquid pump 14
Washing absorption liquid is provided for washing packed tower 5, absorbing liquid falls into packing layer through the spray distribution of one or two layers fountain distributor 7
It completes with flue gas adverse current high-efficient contact in 6 to absorb washing process, with the progress of absorption, absorbent or catalyst in circulation fluid
Consumption, needs to be added from absorbent storage tank 17；With in circulation fluid solid content increase, a circulation fluid branch part into
Enter settler or filter 12 concentrated, clear liquid return washing packed tower 5 recycled, high solids underflow liquid discharge system
It goes to handle outside.
The device of the utility model can contain SO simultaneously in treatment furnace kiln gas body2、NOx, dust particle etc. flue gas,
Tubular type oxidation reactor 1 is connected directly with washing packed tower 2,2 top of packed tower is washed and is connected with wet electrical dust precipitator 10 shape
The integral ultra-clean processing of eliminating dampness method, which is disguised, sets, the NO in treated flue gasxContent is 0~50mg/m3、SO2Content be 0~
35mg/m3, dust particle content be 0~10mg/m3, and most bioxin in flue gas are removed, to reach the purification of setting
Washing or assimilation effect；Compared with conventional denitration, desulfurization, dust removing units are separately handled, equipment, which is taken up an area, saves 40% or more, section
20% or more equipment investment, 20% or more operating cost saving are saved, has gas cleaning intensity high, with good investment, efficient and energy saving
Feature with obvious effects, therefore suitable for promoting the use of.
Above example is only to illustrate the technological thought of the utility model, and the protection model of the utility model cannot be limited with this
Enclose, it is every according to the utility model proposes technological thought, any change done on the basis of technical solution each falls within this reality
Within the scope of novel protected；The technology that the utility model is not directed to can be realized by the prior art.
Claims (13)
1. a kind of device of the ultra-clean processing flue gas of the dust removal integrated wet method of desulphurization denitration, including tubular type oxidation reactor（1）, special
Sign is：The tubular type oxidation reactor（1）Top and conveying contain SO2、NOx, dust particles the flue gas for needing purified treatment
Conveyance conduit be connected, tubular type oxidation reactor（1）Bottom setting washing packed tower（5）Lower part and washing packed tower
（5）Top be arranged wet electrical dust precipitator（10）, tubular type oxidation reactor（1）, washing packed tower（5）, wet electrical dust precipitator
（10）Constitute the main part of denitration desulfurizing dust-collector；The tubular type oxidation reactor（1）Pass through pipeline and ozone generator
（4）It is connected, ozone generator（4）For tubular type oxidation reactor（1）Interior Strong oxdiative reaction provides ozone；Contain SO2、NOx、
The flue gas for needing purified treatment of dust particles is sent into tubular type oxidation reactor through pipeline（1）Top, in tubular type oxidation reactor
（1）NO in the flue gas inside flowed from up to downxWith O3Strong oxdiative reaction occurs, by NOxIt is oxidized to high-valence state change soluble easily in water
Close object NxOy, Strong oxdiative reaction after flue gas enter washing packed tower（5）The circulation fluid of interior bottom-up flowing and addition absorbent
Carry out counter current contacting reactive absorption NxOy、SO2And the dust particles in flue gas are washed, flue gas after washed absorption and
Its fine droplets carried secretly continues upwardly into wet electrical dust precipitator（10）, through fine droplets under charged and electric field force effect of discharging
It is completely separated with particulate matter, the acid mist in flue gas, ultra-clean flue gas is from wet electrical dust precipitator（10）Top discharge.
2. the device of the ultra-clean processing flue gas of the dust removal integrated wet method of desulphurization denitration according to claim 1, it is characterised in that：
The tubular type oxidation reactor（1）In be equipped with ozone spray distribution device（2）With spiral-flow type urgency diffusion mixer（3）, spiral-flow type
Anxious diffusion mixer（3）Positioned at ozone spray distribution device（2）Lower section, ozone spray distribution device（2）It spirally sprays downwards
O3With the NO in the flue gas that flows from up to downxIn spiral-flow type urgency diffusion mixer（3）Under the action of, NO can be madexWith O3
Strong oxdiative reaction is completed in 0.3~1.5 second time.
3. the device of the ultra-clean processing flue gas of the dust removal integrated wet method of desulphurization denitration according to claim 2, it is characterised in that：
The ozone spray distribution device（2）Pass through pipeline and ozone generator（4）It is connected.
4. the device of the ultra-clean processing flue gas of the dust removal integrated wet method of desulphurization denitration according to claim 1, it is characterised in that：
The washing packed tower（5）Middle part be equipped with packing layer（6）And packing layer（6）Top be equipped with fountain distributor（7）, spray
Formula distributor（7）By carrying recycle liquid pump（14）Cycle liquid pipe with washing packed tower（5）The circulation fluid storage tank of bottom is connected
It is logical；Fountain distributor（7）The circulation fluid for spraying addition absorbent downwards and the flue gas of bottom-up flowing carry out counter current contacting
Reactive absorption NxOy、SO2And the dust particles in flue gas are washed.
5. the device of the ultra-clean processing flue gas of the dust removal integrated wet method of desulphurization denitration according to claim 4, it is characterised in that：
The packing layer（6）The filler used is the structured packing of PP/PVD/PTFE materials or plate-type corrugated shape filler；Packing layer
（6）Top be arranged one or two layers fountain distributor（7）, and every layer of fountain distributor（7）Using individually corresponding therewith
Recycle liquid pump（14）Supply circulation fluid.
6. the device of the ultra-clean processing flue gas of the dust removal integrated wet method of desulphurization denitration according to claim 4, it is characterised in that：
The cycle liquid pipe passes through shunt valve and settler or filter（12）Top be connected, settler or filter（12）It will
Dirt mud filtering in circulation fluid is discharged and filtered clear liquid is passed through clear liquid pipe（13）Flow back into washing packed tower（5）Bottom
In circulation fluid storage tank.
7. the device of the ultra-clean processing flue gas of the dust removal integrated wet method of desulphurization denitration according to claim 1 or 4, feature exist
In：The washing packed tower（5）The circulation fluid storage tank of bottom is by carrying absorbent make-up pump（16）Absorbent liquid supplementation pipe with
Absorbent storage tank（17）It is connected, passes through absorbent make-up pump（16）The pH value of circulation fluid is protected circulation fluid supplement absorbent
It holds 5~10.
8. the device of the ultra-clean processing flue gas of the dust removal integrated wet method of desulphurization denitration according to claim 1 or 4, feature exist
In：The washing packed tower（5）The circulation fluid storage tank of bottom with carry liquid waste discharge pump（15）Waste liquid discharge pipe be connected.
9. the device of the ultra-clean processing flue gas of the dust removal integrated wet method of desulphurization denitration according to claim 1, it is characterised in that：
The washing packed tower（5）Top and wet electrical dust precipitator（10）Bottom between be equipped with baffle type defoaming device or unit module
Formula eddy flow dehydrator（8）, baffle type defoaming device or cell modular eddy flow dehydrator（8）Can by after washing absorption flue gas and
Drop of the grain size more than 5 μm or the drop containing dust particles remove in its fine droplets carried secretly.
10. the device of the ultra-clean processing flue gas of the dust removal integrated wet method of desulphurization denitration according to claim 9, feature exist
In：The baffle type defoaming device or cell modular eddy flow dehydrator（8）Top be equipped with flushing/shower device（9）, flushing/shower device（9）
It can be to baffle type defoaming device or cell modular eddy flow dehydrator（8）Carry out backwash.
11. the device of the ultra-clean processing flue gas of the dust removal integrated wet method of desulphurization denitration according to claim 1, feature exist
In：The wet electrical dust precipitator（10）Anode tube be anti-corrosion, conductive, flame retardant type CFRP materials honeycomb-shaped structure or corrosion resistant alloy
Steel material honeycomb-shaped structure；Along the cathode line of fluidization treatment it is the nickel-base alloy of anti-corrosion electrochemical corrosion resistant, two-phase by prickle
Steel alloy, titanium alloy, lead-antimony alloy, high-voltage DC power supply application constant flow high pressure source or high frequency high voltage dc power source；In cathode line
It discharges under charged and electric field force effect, the flue gas after washing absorption and its particle in the fine droplets of entrainment and drop are driven to
Anode tube, Charge particle discharge charge, dust and are flowed down naturally from anode tube by drop dissolving or the nuisance of attached collection.
12. the device of the ultra-clean processing flue gas of the dust removal integrated wet method of desulphurization denitration according to claim 1 or 11, feature
It is：The wet electrical dust precipitator（10）Top vent at be equipped with last row flue gas analyzer（11）.
13. the device of the ultra-clean processing flue gas of the dust removal integrated wet method of desulphurization denitration according to claim 1, feature exist
In：The tubular type oxidation reactor（1）Shell be made of anti-corrosion oxytolerant alloy, wash packed tower（5）Shell use
FRP, engineering plastics or steel alloy are made, wet electrical dust precipitator（10）Shell use with flame-retarding characteristic FRP, engineering plastics
Or steel alloy is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721799455.XU CN207769527U (en) | 2017-12-21 | 2017-12-21 | A kind of device of the ultra-clean processing flue gas of the dust removal integrated wet method of desulphurization denitration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721799455.XU CN207769527U (en) | 2017-12-21 | 2017-12-21 | A kind of device of the ultra-clean processing flue gas of the dust removal integrated wet method of desulphurization denitration |
Publications (1)
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107875824A (en) * | 2017-12-21 | 2018-04-06 | 双盾环境科技有限公司 | A kind of device of the ultra-clean processing flue gas of the dust removal integrated wet method of desulphurization denitration |
| CN110180350A (en) * | 2019-04-23 | 2019-08-30 | 湘潭大学 | Exhaust gas waste water integrated equipment for wastewater treatment and exhaust gas wastewater treatment method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107875824A (en) * | 2017-12-21 | 2018-04-06 | 双盾环境科技有限公司 | A kind of device of the ultra-clean processing flue gas of the dust removal integrated wet method of desulphurization denitration |
| CN110180350A (en) * | 2019-04-23 | 2019-08-30 | 湘潭大学 | Exhaust gas waste water integrated equipment for wastewater treatment and exhaust gas wastewater treatment method |
| CN110180350B (en) * | 2019-04-23 | 2022-01-25 | 湘潭大学 | Integrated treatment equipment for waste gas and waste water and treatment method for waste gas and waste water |
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