CN106139878A - A kind of incinerator smoke denitration desulfurizer - Google Patents
A kind of incinerator smoke denitration desulfurizer Download PDFInfo
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- CN106139878A CN106139878A CN201510146040.1A CN201510146040A CN106139878A CN 106139878 A CN106139878 A CN 106139878A CN 201510146040 A CN201510146040 A CN 201510146040A CN 106139878 A CN106139878 A CN 106139878A
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- connects
- flue gas
- reaction tower
- frequency conversion
- incinerator
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- 239000000779 smoke Substances 0.000 title claims abstract description 12
- 238000006243 chemical reaction Methods 0.000 claims abstract description 79
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 58
- 239000003546 flue gas Substances 0.000 claims abstract description 42
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000004202 carbamide Substances 0.000 claims abstract description 33
- 239000008187 granular material Substances 0.000 claims abstract description 33
- 239000000203 mixture Substances 0.000 claims abstract description 33
- 238000012544 monitoring process Methods 0.000 claims abstract description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 48
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 35
- 239000000920 calcium hydroxide Substances 0.000 claims description 35
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 32
- 239000000428 dust Substances 0.000 claims description 16
- 239000007789 gas Substances 0.000 claims description 16
- 239000000843 powder Substances 0.000 claims description 11
- 239000004744 fabric Substances 0.000 claims description 9
- 239000003818 cinder Substances 0.000 claims description 8
- 230000005520 electrodynamics Effects 0.000 claims description 8
- 230000008676 import Effects 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 235000019504 cigarettes Nutrition 0.000 claims 1
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 18
- 239000003344 environmental pollutant Substances 0.000 abstract description 4
- 230000001473 noxious effect Effects 0.000 abstract description 4
- 231100000719 pollutant Toxicity 0.000 abstract description 4
- 235000013877 carbamide Nutrition 0.000 description 25
- 238000000034 method Methods 0.000 description 19
- 238000006477 desulfuration reaction Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 11
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 8
- 239000011575 calcium Substances 0.000 description 7
- 230000023556 desulfurization Effects 0.000 description 6
- 229910001385 heavy metal Inorganic materials 0.000 description 6
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 5
- 239000003638 chemical reducing agent Substances 0.000 description 5
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 238000004056 waste incineration Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 229910021529 ammonia Inorganic materials 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 3
- 235000011941 Tilia x europaea Nutrition 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000004571 lime Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 239000010791 domestic waste Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- -1 hydrogen calcium oxide Chemical class 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000002594 sorbent Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004577 thatch Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002114 biscuit porcelain Inorganic materials 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- DOTMOQHOJINYBL-UHFFFAOYSA-N molecular nitrogen;molecular oxygen Chemical compound N#N.O=O DOTMOQHOJINYBL-UHFFFAOYSA-N 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
A kind of incinerator smoke denitration desulfurizer, including incinerator, flue gas Online Monitoring Control device, electronic air inlet valve, reaction tower, sack cleaner, blower fan, chimney, it is characterized in that: described incinerator is linked in sequence flue gas Online Monitoring Control device, electronic air inlet valve, reaction tower, sack cleaner, blower fan, chimney, described flue gas Online Monitoring Control device connects frequency conversion rotary feeder, frequency conversion rotary feeder is connected above electron helical and claims, electron helical claims to connect discharger, discharger connects urea granules feed bin, mixture generator is connected below frequency conversion rotary feeder, mixture generator one tunnel connects high pressure roots blower fan, urea granules playpipe of separately leading up to connects urea granules jet, urea granules jet is positioned at above the sidewall of incinerator burner hearth.The present invention can remove SO in incinerator smoke2, the noxious pollutant such as nitrogen oxides, make flue gas qualified discharge, it is to avoid to environment.
Description
Technical field
The present invention relates to a kind of incinerator smoke denitration desulfurizer, be particularly used for purifying house refuse
The flue gas that incinerator produces, belongs to environmental technology field.
Background technology
In prior art, house refuse is after fully burning between produced 850 DEG C～1100 DEG C
Flue gas, denitrating technique is mainly with ammonia (or urea liquid) as reducing agent, anti-with nitrogen oxides in burner hearth
Should；Then carry out removing SO2Gas, wherein SO2The removal methods of gas uses semidry method or wet processing,
There is shortcomings in said method:
1, denitrating technique is mainly with ammonia (or urea liquid) as reducing agent, anti-with nitrogen oxides in burner hearth
Should；Its shortcoming be ammonia and liquefied ammonia be hazardous cargo not readily transportable and store；And urea liquid need to be existing
Prepare, carry, dilute, mix and be injected to again in burner hearth, complex process, cost of investment and daily dimension
Protect costly.
2, semi-dry desulphurization is to be sprayed in reactor by nozzle or rotary sprayer by lime white, forms particle diameter relatively
Little drop, makes SO2Gas and lime white react generation salt, and its shortcoming is that the preparation of lime white is complicated,
Desulfuration efficiency is limited.
3, wet desulphurization then uses scrubbing tower form, and can produce containing the inorganic villaumite of high concentration and heavy metal is useless
Water, produces secondary pollution, need to be equipped with Waste Water Treatment, and cost of investment is high, and operating cost is the highest.
Summary of the invention
It is an object of the invention to overcome above-mentioned weak point, thus a kind of incinerator smoke denitration desulfurization dress is provided
Putting, this device denitrating technique is mainly with urea granules as reducing agent, and reaction of nitrogen oxides in burner hearth,
In burner hearth, NOx is reduced to N2And water；Doctor solution consumption is few and utilization rate high, desulfurizing agent in cyclic process
Granule under mutual rubbing action, the most exposed surface that makes new advances, make desulphurization reaction constantly be sufficiently carried out, de-
Sulfur rate is high；In whole sweetening process, operation temperature is higher than dew point, and not corrosion or condensation, without useless
Water produces, and does not produce secondary pollution；Having desulfuration efficiency high, investment operating cost is low, and reliability is high, energy
Consume low, safeguard easily, the advantages such as floor space is little, system length in service life, SO2Concentration of emission 70mg/Nm3,
The concentration of emission 200mg/Nm of NOx3, the concentration of emission 40mg/Nm of HC3, dust emission concentration 15mg/Nm3,
It is better than GB18485-2014 standard " consumer waste incineration Environmental capacity standard " (SO2＜ 80mg/Nm3, NOx's
Concentration of emission ＜ 250mg/Nm3, HCL ＜ 50mg/Nm3, dust emission concentration ＜ 20mg/Nm3), it is possible to absorption flue gas
In dioxin, the noxious pollutant such as heavy metal, make flue gas qualified discharge, it is to avoid to environment.
The technical scheme is that a kind of incinerator smoke denitration desulfurizer, including incinerator, flue gas
Online Monitoring Control device, electronic air inlet valve, reaction tower, sack cleaner, blower fan, chimney, its feature
It is: described incinerator is linked in sequence flue gas Online Monitoring Control device, electronic air inlet valve, reaction tower, cloth
Bag dust collector, blower fan, chimney, described flue gas Online Monitoring Control device connects frequency conversion rotary feeder, becomes
Frequently rotary feeder is connected above electron helical and claims, and electron helical claims to connect discharger, and discharger connects carbamide
Granule feed bin, connects mixture generator below frequency conversion rotary feeder, mixture generator one tunnel connects high pressure sieve
Thatch blower fan, urea granules playpipe of separately leading up to connects urea granules jet, urea granules jet position
Above the sidewall of incinerator burner hearth, between described flue gas Online Monitoring Control device and electronic air inlet valve import
Connecting bypass pipeline, by-pass line is connected with fan inlet, and by-pass line is provided with bypass valve, described electricity
Dynamic air inlet valve outlet is connected with reaction tower air intake, and reaction tower air intake bottom connects taper ash collection slot, cone
Shape ash collection slot connects electric cinder valve, and reaction tower air intake top connects has trunnion, trunnion top to be linked in sequence
Having calcium hydroxide to dust mouth, water jet, water jet connects water pump by pipeline, and water pump connects water tank, water spray
Mouth top connects exhanst gas outlet, and exhanst gas outlet connects sack cleaner by entering sack cleaner pipeline, enters
Being provided with activated carbon entrance on sack cleaner pipeline, activated carbon entrance is connected by activated carbon playpipe
Mixture generator, mixture generator one tunnel connects high pressure roots blower fan, and mixture generator is connected above frequency conversion rotation
Turning batcher, frequency conversion rotary feeder connects electron helical and claims, and electron helical claims to connect discharger, discharger
Connecting activated carbon feed bin, sack cleaner bottom connects air flume, presses Roots bottom air flume in connecting
Blower fan, air flume side coupled reaction tower circulating line, reaction tower circulating line one tunnel connects recycle feed
Valve, another road connects ash silo electrodynamic valve, and ash silo electrodynamic valve connects ash silo, and ash silo bottom connects electric cinder valve,
Reaction tower calcium hydroxide dusts mouth by calcium hydroxide playpipe connection mixture generator, mixture generator one tunnel
Connecting high pressure roots blower fan, mixture generator is connected above frequency conversion rotary feeder, and frequency conversion rotary feeder is even
Connecing electron helical to claim, electron helical claims to connect discharger, and discharger connects calcium hydroxide dry powder feed bin.
The invention has the beneficial effects as follows: this device denitrating technique is mainly with urea granules as reducing agent, with burner hearth
Middle reaction of nitrogen oxides, in burner hearth, NOx is reduced to N2And water；Doctor solution consumption is few and utilization rate high,
In cyclic process, sorbent particle is under mutual rubbing action, the most exposed surface that makes new advances, and makes desulphurization reaction not
Breaking and be sufficiently carried out, desulfurization degree is high；In whole sweetening process, operation temperature, higher than dew point, is not corroded
Or condensation, produce without waste water, do not produce secondary pollution；There is desulfuration efficiency high, invest operating cost
Low, reliability is high, and energy consumption is low, safeguards easily, the advantages such as floor space is little, system length in service life, SO2's
Concentration of emission 70mg/Nm3, the concentration of emission 200mg/Nm of NOx3, the concentration of emission 40mg/Nm of HC3, dust
Concentration of emission 15mg/Nm3, it is better than GB18485-2014 standard " consumer waste incineration Environmental capacity standard "
(SO2＜ 80mg/Nm3, the concentration of emission ＜ 250mg/Nm of NOx3, HCL ＜ 50mg/Nm3, dust emission concentration
＜ 20mg/Nm3), it is possible to adsorb the noxious pollutants such as the dioxin in flue gas, heavy metal, make flue gas qualified discharge,
Avoid environment.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is part A enlarged drawing in Fig. 1.
Fig. 3 is part B enlarged drawing in Fig. 1.
Fig. 4 is C portion enlarged drawing in Fig. 1.
In Fig. 1, Fig. 2, Fig. 3, Fig. 4,1. incinerator, 2. electronic air inlet valve, 3. reaction tower air intake,
4. taper ash collection slot, 5. electric cinder valve, 6. trunnion, 7. calcium hydroxide dusts mouth, 8. water jet, 9. water
Pump, 10. water tank, 11. reaction towers, 12. exhanst gas outlets, 13. recycle feed valves, 14. reaction tower circulating lines,
15. ash silo electrodynamic valves, 16. ash silos, 17. electric cinder valves, 18. sack cleaners, 19. air flumes, 20.
Middle pressure roots blower, 21. calcium hydroxide dry powder feed bins, 22. dischargers, 23. electron helicals claim, 24. frequency conversions
Rotary feeder, 25. high pressure roots blower fans, 26. mixture generators, 27. calcium hydroxide playpipes, 28. is other
Logical valve, 29. activated carbon feed bins, 30. dischargers, 31. electron helicals claim, 32. frequency conversion rotary feeders, and 33.
High pressure roots blower fan, 34. mixture generators, 35. activated carbon playpipes, 36. activated carbon entrances, 37. enter
Sack cleaner pipeline, 38. blower fans, 39. chimneys, 40. by-pass lines, 41. urea granules feed bins, 42. unload
Glassware, 43. electron helicals claim, 44. frequency conversion rotary feeders, 45. high pressure roots blower fans, and 46. mixing occur
Device, 47. urea granules playpipes, 48. urea granules jets, 49. flue gas Online Monitoring Control devices.
Detailed description of the invention
The present invention is further illustrated below in conjunction with the accompanying drawings.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, the present invention is a kind of incinerator smoke denitration desulfurizer,
Remove including incinerator 1, flue gas Online Monitoring Control device 49, electronic air inlet valve 2, reaction tower 11, cloth bag
Dirt device 18, blower fan 38, chimney 39, it is characterised in that: described incinerator 1 is linked in sequence flue gas on-line monitoring
Control device 49, electronic air inlet valve 2, reaction tower 11, sack cleaner 18, blower fan 38, chimney 39,
Described flue gas Online Monitoring Control device 49 connects frequency conversion rotary feeder 44, on frequency conversion rotary feeder 44
Side connects electron helical and claims 43, and electron helical claims 43 connection dischargers 42, and discharger 42 connects urea granules
Feed bin 41, connects mixture generator 46 below frequency conversion rotary feeder 44, mixture generator 46 1 tunnel connects
High pressure roots blower fan 45, urea granules playpipe 47 of separately leading up to connects urea granules jet 48, urine
Crude granule jet 48 is positioned at above the sidewall of incinerator 1 burner hearth, described flue gas Online Monitoring Control device 49
And connecting bypass pipeline 40 between electronic air inlet valve 2 import, by-pass line 40 is connected with blower fan 38 import,
Being provided with bypass valve 28 on by-pass line 40, the outlet of described electronic air inlet valve 2 is connected with reaction tower air intake 3,
Reaction tower air intake 3 bottom connects has taper ash collection slot 4, taper ash collection slot 4 to connect electric cinder valve 5, instead
Answer tower air intake 3 top connect have trunnion 6, trunnion 6 top be linked in sequence calcium hydroxide dust mouth 7, spray
The mouth of a river 8, water jet 8 connects water pump 9 by pipeline, and water pump 9 connects water tank 10, and water jet 8 top connects
Having exhanst gas outlet 12, exhanst gas outlet 12 connects sack cleaner 18 by entering sack cleaner pipeline 37, enters
Being provided with activated carbon entrance 36 on sack cleaner pipeline 37, activated carbon entrance 36 is sprayed by activated carbon
Penetrating pipe 35 and connect mixture generator 34, mixture generator 34 1 tunnel connects high pressure roots blower fan 33, and mixing is sent out
Raw device 34 is connected above frequency conversion rotary feeder 32, and frequency conversion rotary feeder 32 connects electron helical and claims 31,
Electron helical claims 31 connection dischargers 30, and discharger 30 connects activated carbon feed bin 29, sack cleaner 18
Bottom connects air flume 19, presses roots blower 20, air flume 19 side bottom air flume 19 in connecting
Face coupled reaction tower circulating line 14, reaction tower circulating line 14 1 tunnel connects recycle feed valve 13, another
Road connects ash silo electrodynamic valve 15, and ash silo electrodynamic valve 15 connects ash silo 16, and the connection of ash silo 16 bottom is electronic unloads ash
Valve 17, dust mouth 7 of reaction tower calcium hydroxide connects mixture generator 26 by calcium hydroxide playpipe 27,
Mixture generator 26 1 tunnel connect high pressure roots blower fan 25, mixture generator 26 be connected above frequency conversion rotate to
Material machine 24, frequency conversion rotary feeder 24 connects electron helical and claims 23, and electron helical claims 23 connection dischargers 22,
Discharger 22 connects calcium hydroxide dry powder feed bin 21.
The work process of the present invention: 500t/d domestic waste incineration 1, exhaust gas volumn 14～15 × 104m3/ h,
Temperature in incinerator 1 burner hearth is 850 DEG C～1100 DEG C, SO2Concentration 600～800mg/Nm3, HCL's
Concentration 800～1200mg/Nm3, the concentration 600～700mg/Nm of NOx3, dust concentration 20～30g/Nm3,
The oxygen content 8%～12% of flue gas, the water capacity 15%～25% of flue gas；
Claimed 43 by urea granules feed bin 41, discharger 42, electron helical, frequency conversion rotary feeder 44, high
The groups such as pressure roots blower 45, mixture generator 46, urea granules playpipe 47, urea granules jet 48
The urea granules injection apparatus become；Flue gas Online Monitoring Control device 49 is to the exhaust gas volumn of incinerator 1 and generation
The amount of NOx detects, and feeds back to PLC control system, and PLC control system calculates the consumption of carbamide,
After electron helical claims 43 Weighings, by frequency conversion rotary feeder 44, according to operating mode, with changing rotating speed
Mode adjust conveying capacity, conveying capacity sends into blender 46, from the wind-force of high pressure roots blower fan 45, will fall
Enter the urea granules of blender 46 to send into urea granules jet 48 by urea granules playpipe 47 and enter and burn
Burning in stove 1 burner hearth, in incinerator 1 burner hearth, the nitrogen oxides in urea granules and flue gas occurs chemistry anti-
Should:
2CO(NH2)2+4NO+O2=4N2+4H2O+2CO2
4CO(NH2)2+4NO2=6N2+8H2O+2CO2
In burner hearth, NOx is reduced to N2And water；
The flue gas of domestic waste incineration 1, after denitration processes, enters reaction by the suction function of blower fan 38
Tower 11, flue gas is accelerated after entering reaction tower 11 at trunnion 6, and high velocity air is shape in reaction tower 11
Become strong turbulent flow, produce efficient sufficient gas-solid contact；Through reaction tower 11 through containing that desulfurization processes
The flue gas of high concentrate dust from reaction tower 11 top exhanst gas outlet 12 out after, enter rear portion bag-type dust
Carry out udst separation in device 18, flow out sack cleaner 18, by main air blower 38 He through the flue gas purified
Clean flue enters the outer row of chimney 39；When the flue-gas temperature entering sack cleaner 18 exceedes the work temperature of cloth bag
When spending, open bypass valve 28, close electronic air inlet valve 2, make flue gas pass through by-pass line 40 and enter main air blower
38, discharged by chimney 39, protect cloth bag；
Claimed 23 by calcium hydroxide dry powder feed bin 21, discharger 22, electron helical, frequency conversion rotary feeder 24,
The calcium hydroxide injection of the composition such as high pressure roots blower fan 25, mixture generator 26, calcium hydroxide playpipe 27
Device；Exhaust gas volumn according to incinerator 1 and the amount of generation acidulants, calculate Ca (OH)2Consumption, through electricity
After sub-spiral claims 23 Weighings, by frequency conversion rotary feeder 24, according to operating mode, with the side changing rotating speed
Formula adjusts powder delivering amount, and powder delivering amount sends into blender 26, from the wind-force of high pressure roots blower fan 25, will fall into mixed
The powder of clutch 26 is sent into the calcium hydroxide mouth 7 that dusts by calcium hydroxide playpipe 27 and is entered in reaction tower 11,
In reaction tower 11, spread in the calcium hydroxide particle in flue gas under mutual rubbing action, constantly hydrogen-oxygen
Change (sub-) calcium sulfate removal that calcium particle surface generates, make that the calcium hydroxide within granule is the most exposed to make new advances
Surface, makes desulphurization reaction constantly be sufficiently carried out down, the SO in flue gas2Removal efficiency high, due to SO3、
The sour gas such as HF, HCL compare SO2It is more easy to react with calcium hydroxide, SO in reaction tower 113、
The removal efficiency of HF, HCL can reach more than 98%；In reaction tower 11, reacted calcium hydroxide leads to
Cross air flume 19, reaction tower circulating line 14 carries out calcium hydroxide iterative cycles with reaction tower 11, and it follows
Circular rector is controlled by recycle feed valve 13, is provided with middle pressure roots blower 20, by air bottom air flume 19
Calcium hydroxide in skewed slot 19 is in suspended state all the time, it is ensured that the elimination reaction occurred, and works as desulfurization operation
After a period of time, open ash silo electrodynamic valve 15, the dust in desulfurization product, flue gas is entered ash silo 16, logical
Crossing electric cinder valve 17 and discharge blood circulation, calcium hydroxide induction system is by calcium hydroxide iterative cycles and flue gas
Contact, circulating ratio reaches 150～260 times, and calcium hydroxide utilization rate is high；
A series of chemical change is there is in above-mentioned technical process:
Ca(OH)2+SO2+1/2H2O→CaSO3.1/2H2O+H2O
Ca(OH)2+SO3+H2O→CaSO4.2H2O
Ca(OH)2+2HCL→CaCL2.2H2O
Ca(OH)2+2HF→CaF2.2H2O
CaSO3.1/2H2O+1/2O2+2/3H2O→CaSO4.2H2O
Ca(OH)2+CO2→CaCO3+H2O
In reaction tower 11, mixture is dry relatively uniform, and recycle hydrogen calcium oxide has fabulous mobility, energy
Guarantee stablizing of operating mode in reaction tower 11；Sweetening process becomes the thicker granule work at gravity because of conglomeration
With falling in reaction tower taper ash collection slot 4, reacted tower bottom electric cinder valve 5 is discharged；
Secondary desulfuration reaction on cloth bag: under the effect of negative pressure, Ca (OH)2Powder adsorption is formed on cloth bag surface
One layer of Ca (OH)2Bisque, reacts further with the sulfur-containing smoke gas entering cleaner unit.In course of reaction, use
Cleaner unit import and export pressure differential controls deashing frequency, when pressure differential exceedes the upper limit of setting, to cloth bag
Carry out deashing, in order to Ca (OH)2Powder constantly adsorbs and reacts with sulfur-containing smoke gas on cloth bag surface.Ca(OH)2
Iterative cycles and smoke contacts, Ca (OH)2Utilization rate is high, improves desulfuration efficiency；
Claimed 31 by activated carbon feed bin 29, discharger 30, electron helical, frequency conversion rotary feeder 32, high pressure sieve
The injection apparatus of the composition activated carbon such as thatch blower fan 33, mixture generator 34, activated carbon playpipe 35；According to
The exhaust gas volumn of incinerator 1 and the amount of the generation harmful substance such as dioxin, heavy metal, the consumption of calculated activity charcoal
Amount, after electron helical claims 31 Weighings, by frequency conversion rotary feeder 32, according to operating mode, with change
The mode of rotating speed adjusts activated carbon conveying capacity, and activated carbon sends into blender 34, from high pressure roots blower fan 33
Wind-force, sends into activated carbon entrance 36 by the activated carbon falling into blender 34 by activated carbon playpipe 35 and enters
Entering in sack cleaner pipeline 37, the activated carbon sprayed into is to nuisances such as the dioxin in flue gas and heavy metals
Matter is adsorbed；
Water for industrial use in water tank 10 pumps in the water jet 8 of reaction tower 11 by water pump 9, water with
Vaporific ejection, improves Ca (OH)2With SO2、SO3, the heat transfer of the sour gas such as HF, HCL, mass transfer rate,
Occur to neutralize reaction, remove the sour gas in flue gas, improve desulfuration efficiency；
As can be seen here, apparatus of the present invention denitrating technique is mainly with urea granules as reducing agent, with nitrogen oxygen in burner hearth
Compound is reacted, and in burner hearth, NOx is reduced to N2And water；Doctor solution consumption is few and utilization rate high, circulation
During sorbent particle under mutual rubbing action, the most exposed surface that makes new advances, desulfurization degree is high；Whole
In sweetening process, operation temperature, higher than dew point, is not corroded or condensation, is produced without waste water, do not produce
Secondary pollution；Having desulfuration efficiency high, investment operating cost is low, and reliability is high, and energy consumption is low, safeguards easily,
The advantages such as floor space is little, system length in service life, SO2Concentration of emission 70mg/Nm3, the discharge of NOx is dense
Degree 200mg/Nm3, the concentration of emission 40mg/Nm of HC3, dust emission concentration 15mg/Nm3, it is better than
GB18485-2014 standard " consumer waste incineration Environmental capacity standard " (SO2＜ 80mg/Nm3, the discharge of NOx
Concentration ＜ 250mg/Nm3, HCL ＜ 50mg/Nm3, dust emission concentration ＜ 20mg/Nm3), it is possible in absorption flue gas
The noxious pollutant such as dioxin, heavy metal, makes flue gas qualified discharge, it is to avoid to environment.
Claims (1)
1. an incinerator smoke denitration desulfurizer, including incinerator, flue gas Online Monitoring Control device,
Electronic air inlet valve, reaction tower, sack cleaner, blower fan, chimney, it is characterised in that: described incinerator is suitable
Sequence connects flue gas Online Monitoring Control device, electronic air inlet valve, reaction tower, sack cleaner, blower fan, cigarette
Chimney, described flue gas Online Monitoring Control device connects frequency conversion rotary feeder, connects above frequency conversion rotary feeder
Connecing electron helical to claim, electron helical claims to connect discharger, and discharger connects urea granules feed bin, and frequency conversion rotates
Connecting mixture generator below batcher, mixture generator one tunnel connects high pressure roots blower fan, separately leads up to
Urea granules playpipe connects urea granules jet, and urea granules jet is positioned at the sidewall of incinerator burner hearth
Top, connecting bypass pipeline between described flue gas Online Monitoring Control device and electronic air inlet valve import, bypass
Pipeline is connected with fan inlet, and by-pass line is provided with bypass valve, the outlet of described electronic air inlet valve and reaction
Tower air intake connects, and reaction tower air intake bottom connects taper ash collection slot, and taper ash collection slot connects electronic unloading
Ash valve, reaction tower air intake top connect have trunnion, trunnion top be linked in sequence calcium hydroxide dust mouth,
Water jet, water jet connects water pump by pipeline, and water pump connects water tank, and water jet top connects has flue gas to go out
Mouthful, exhanst gas outlet connects sack cleaner by entering sack cleaner pipeline, enters and sets on sack cleaner pipeline
Being equipped with activated carbon entrance, activated carbon entrance connects mixture generator by activated carbon playpipe, and mixing is sent out
Sheng Qi mono-tunnel connects high pressure roots blower fan, and mixture generator is connected above frequency conversion rotary feeder, and frequency conversion rotates
Batcher connects electron helical and claims, and electron helical claims to connect discharger, and discharger connects activated carbon feed bin, cloth
Bag dust collector bottom connects air flume, presses roots blower, air flume side bottom air flume in connecting
Coupled reaction tower circulating line, reaction tower circulating line one tunnel connects recycle feed valve, and another road connects ash silo
Electrodynamic valve, ash silo electrodynamic valve connects ash silo, and ash silo bottom connects electric cinder valve, and reaction tower calcium hydroxide sprays
Powder mouth connects mixture generator by calcium hydroxide playpipe, and mixture generator one tunnel connects high pressure roots blower fan,
Mixture generator is connected above frequency conversion rotary feeder, and frequency conversion rotary feeder connects electron helical and claims, electronics
Spiral claims to connect discharger, and discharger connects calcium hydroxide dry powder feed bin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510146040.1A CN106139878A (en) | 2015-03-26 | 2015-03-26 | A kind of incinerator smoke denitration desulfurizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510146040.1A CN106139878A (en) | 2015-03-26 | 2015-03-26 | A kind of incinerator smoke denitration desulfurizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106139878A true CN106139878A (en) | 2016-11-23 |
Family
ID=57340497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510146040.1A Pending CN106139878A (en) | 2015-03-26 | 2015-03-26 | A kind of incinerator smoke denitration desulfurizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106139878A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115571641A (en) * | 2022-10-11 | 2023-01-06 | 中航超能(苏州)科技有限公司 | Calcium hydroxide delivery systems and methods |
| CN120947366A (en) * | 2025-10-13 | 2025-11-14 | 中色科技股份有限公司 | A flue gas purification system for a dual-chamber recycled aluminum furnace |
-
2015
- 2015-03-26 CN CN201510146040.1A patent/CN106139878A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115571641A (en) * | 2022-10-11 | 2023-01-06 | 中航超能(苏州)科技有限公司 | Calcium hydroxide delivery systems and methods |
| CN120947366A (en) * | 2025-10-13 | 2025-11-14 | 中色科技股份有限公司 | A flue gas purification system for a dual-chamber recycled aluminum furnace |
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Application publication date: 20161123 |