CN107694269A - A kind of high effect dust cleaner and dust collecting process suitable for ammonia process desulfuration tower - Google Patents
A kind of high effect dust cleaner and dust collecting process suitable for ammonia process desulfuration tower Download PDFInfo
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- CN107694269A CN107694269A CN201711130229.7A CN201711130229A CN107694269A CN 107694269 A CN107694269 A CN 107694269A CN 201711130229 A CN201711130229 A CN 201711130229A CN 107694269 A CN107694269 A CN 107694269A
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 239000000428 dust Substances 0.000 title claims abstract description 48
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 34
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 26
- 230000000694 effects Effects 0.000 title claims abstract description 21
- 238000005507 spraying Methods 0.000 claims abstract description 111
- 239000003546 flue gas Substances 0.000 claims abstract description 44
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 230000023556 desulfurization Effects 0.000 claims abstract description 28
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 25
- 238000001816 cooling Methods 0.000 claims abstract description 11
- 239000007921 spray Substances 0.000 claims description 44
- 239000000178 monomer Substances 0.000 claims description 10
- 239000008393 encapsulating agent Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 240000007594 Oryza sativa Species 0.000 claims description 2
- 235000007164 Oryza sativa Nutrition 0.000 claims description 2
- 235000009566 rice Nutrition 0.000 claims description 2
- 239000000443 aerosol Substances 0.000 abstract description 5
- 239000000498 cooling water Substances 0.000 abstract description 4
- 239000008187 granular material Substances 0.000 abstract description 2
- 238000000746 purification Methods 0.000 abstract description 2
- 238000005453 pelletization Methods 0.000 abstract 1
- 238000011010 flushing procedure Methods 0.000 description 7
- 239000007789 gas Substances 0.000 description 5
- RAHZWNYVWXNFOC-UHFFFAOYSA-N sulfur dioxide Inorganic materials O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 5
- 239000005864 Sulphur Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 239000010419 fine particle Substances 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- AOSFMYBATFLTAQ-UHFFFAOYSA-N 1-amino-3-(benzimidazol-1-yl)propan-2-ol Chemical compound C1=CC=C2N(CC(O)CN)C=NC2=C1 AOSFMYBATFLTAQ-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- PQUCIEFHOVEZAU-UHFFFAOYSA-N Diammonium sulfite Chemical compound [NH4+].[NH4+].[O-]S([O-])=O PQUCIEFHOVEZAU-UHFFFAOYSA-N 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/40—Combinations of devices covered by groups B01D45/00 and B01D47/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/507—Sulfur oxides by treating the gases with other liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2062—Ammonia
Abstract
A kind of high effect dust cleaner and dust collecting process suitable for ammonia process desulfuration tower, belong to filed of flue gas purification.Including desulfurizing tower, desulfurization spraying layer and high-effective dust-removing layer are set gradually inside desulfurizing tower from bottom to top, it is characterised in that：Described high-effective dust-removing layer is made up of the first demisting layer, the first spraying layer, collecting layer, the second spraying layer, rotational flow dust-removing layer, the 3rd spraying layer, the second demisting layer and the 4th spraying layer set gradually from bottom to top, water return pipeline, clear water reserviors, cooler and the inlet pipeline being sequentially connected are set outside desulfurizing tower, water return pipeline is connected with collecting layer, and inlet pipeline is connected with the first spraying layer, the second spraying layer, the 3rd spraying layer and the 4th spraying layer.Cooling water carries out spraying cooling to flue gas in dust pelletizing system, flue-gas temperature is maintained at 10 30 DEG C, dust arrester and dust collecting process of the present invention effectively reduce dust granules and aerosol load in flue gas, avoid the escaping of ammonia, hence it is evident that improves dust removing effects.
Description
Technical field
A kind of high effect dust cleaner and dust collecting process suitable for ammonia process desulfuration tower, belong to filed of flue gas purification.
Background technology
The flue gas desulfurization absorbent of the ammonia process of desulfurization is NH3, with the SO in flue gas2Reaction be gas/liquid two phase reaction, reaction
Speed is high, and reaction is complete, to SO2Absorbability it is higher than other techniques.97% ~ 99% desulfurization can also be reached to high-sulfur ature of coal
Efficiency.Because ammonia is soluble in water, in the case where liquid-gas ratio is certain, it is easy to improve it to SO2Absorbability, meet fuel
Desulfurization requirement when sulfur content fluctuates.Ammonia process of desulfurization liquid-gas ratio is small, and SR is low, and power consumption is lower than wet-type calcium per hour for device
Nearly 40%.Accessory substance ammonium sulfate has higher economic value, can significantly reduce the operating cost of device, nothing as agrochemical
Waste water and dregs, there is obvious economic benefit and environmental benefit.
The ammonia process of desulfurization needs to solve the problems, such as to be aerosol and ammonia damage.Aerosol refers to that solid or liquid particle stably hang
Float on the dispersion formed in gas medium.During the ammonia process of desulfurization, ammonium sulfite and ammonium bisulfite aerosol are with net
Flue gas is discharged, and causes the loss of ammonia, turns into the bottleneck of puzzlement ammonia-process desulfurization technique development.As country is to environmentally friendly minimum discharge mark
The appearance of alignment request and local environmental emission standard, traditional ammonia process of desulfurization can not meet the standard to exhaust emissions, need
Find a kind of more efficient desulfurization dust-removal system.
The content of the invention
The technical problem to be solved in the present invention is：Overcome the deficiencies in the prior art, there is provided one kind is applied to ammonia process desulfuration tower
High effect dust cleaner and dust collecting process.
The technical solution adopted for the present invention to solve the technical problems is：The high-effective dust-removing for being applied to ammonia process desulfuration tower fills
Put, including desulfurizing tower, desulfurization spraying layer and high-effective dust-removing layer set gradually from bottom to top inside desulfurizing tower, it is characterised in that：Institute
The high-effective dust-removing layer stated by set gradually from bottom to top the first demisting layer, the first spraying layer, collecting layer, the second spraying layer, rotation
Stream sets the return pipe being sequentially connected except knoisphere, the 3rd spraying layer, the second demisting layer and the 4th spraying layer composition, desulfurizing tower outside
Road, clear water reserviors, cooler and inlet pipeline, water return pipeline are connected with collecting layer, inlet pipeline and the first spraying layer, the second spray
Layer, the 3rd spraying layer and the 4th spraying layer are connected.
Each interlamellar spacing is 0.5-2.5 rice in the high-effective dust-removing layer.
Described collecting layer includes multiple collection monomers, and adjacent collector monomer edge connection composition collects part, collection portion
Divide and collecting tank is set between desulfurizing tower tower body, desulfurizing tower tower body side sets the backwater mouth of pipe connected with collecting tank, collects single
Body includes collecting framework, rain cap and central cylinder, and central cylinder is located at the center for collecting framework, and rain cap upper end is pyramidal structure,
Rain cap lower edge is fixed with central cylinder upper end, and the side for collecting framework sets discharge outlet, neighbouring row between adjacent collector framework
The mouth of a river connects, and collects the discharge outlet connection collecting tank of portion outboard, collects area filling encapsulant between part and collecting tank,
Central cylinder is tubular structure, support bar is vertically arranged on the upside of central cylinder, support bar is around central cylinder upper edge interval
Set multiple, rain cap is fixed in central cylinder by support bar.
First spraying layer, the second spraying layer, the 3rd spraying layer and the 4th spraying layer include spray main line, spray
Bye-pass and shower nozzle, spray main line are connected with inlet pipeline, and spray bye-pass is in the both sides of spray main line horizontal direction
It is uniformly distributed, spray bye-pass outer end sets shower nozzle.
The shower nozzle of second spraying layer is installed on the top of spray bye-pass outer end, the first spraying layer, the 3rd spray
The shower nozzle of layer and the 4th spraying layer is installed on the lower section of spray bye-pass outer end.
Described rotational flow dust-removing layer is made up of the connection of multiple modularization cyclone dust catchers, each modularization cyclone dust catcher
Between between swirl-flow devices and desulfurization tower wall area filling encapsulant.
The first described demisting layer is streamlined or broken line type demister.
The second described demisting layer is streamlined or broken line type demister.
A kind of dust collecting process of high effect dust cleaner, it is characterised in that：Flue gas enters desulfurizing tower from bottom to top, by desulfurization
Spraying layer enters dedusting layer after carrying out desulfurization spray, and in high-effective dust-removing layer, flue gas carries out a demisting by the first demister,
Then spraying cooling is carried out to flue gas by the first spraying layer, flue-gas temperature is down to 10-30 DEG C, subsequent flue gas removes by eddy flow
Knoisphere carries out dedusting, finally carries out secondary demisting by the second demisting layer, the second spraying layer and the 3rd spraying layer are to rotational flow dust-removing
Layer is rinsed, and the 4th spraying layer above the second demisting layer is rinsed to the second demister, the second spraying layer, the 3rd spray
The shower water of layer and the 4th spraying layer is collected layer collection, then enters clear water reserviors by outlet pipeline, is then carried out through cooler
Cool down and recycled by inlet pipeline.
The course of work of high effect dust cleaner of the present invention is：Flue gas enters after desulfurizing tower by desulfurization spraying layer, de-
Sulfur dioxide and part dust in the lower removing flue gas of spray effect of sulphur spraying layer, the flue gas after desulfurization pass through the first demisting
Layer, removed in the presence of the first demisting layer in partial fume and carry doctor solution droplet and fine particle secretly, carry out first time dedusting,
Then, flue gas is by the cooled cooling of the second spraying layer, while reduces the water capacity in flue gas；Flue gas after cooling removes in eddy flow
Under the dustproof function of knoisphere, remaining fine particle in flue gas is removed, carries out second of dedusting, the second spraying layer, the 3rd spray
Layer is carried out continuing cleaning respectively from the above and below of cyclone dust to cyclone dust, and then the second demisting layer is gone again
Except spray causes the droplet of flue gas entrainment, the 4th spraying layer is that the second demisting layer carries out periodic cleaning, and flushing water is collected layer
After collection, clear water reserviors are entered by water return pipeline, clear water reserviors reclaimed water uses through subcooler cooling Posterior circle, passes through inlet pipeline
Into the first spraying layer, the second spraying layer, the 3rd spraying layer and the 4th spraying layer.
Compared with prior art, beneficial effect possessed by the present invention is：
1st, dust collecting process of the present invention is carried out multi-level using the first demisting layer, rotational flow dust-removing layer and the second demisting layer synergy
Defogging operation, dust granules and aerosol load in flue gas being reduced to the full extent, avoiding the escaping of ammonia, guarantee efficiently removes
Dirt effect.First spraying layer cooling water carries out spraying cooling to flue gas, and it is 10-30 DEG C to make flue-gas temperature, while reduces flue gas
Water capacity, be advantageous to improve efficiency of dust collection；The setting second of cyclone dust upper and lower surface and the 3rd spraying layer are as rotational flow dust-removing
Layer flusher, the 4th spraying layer are rinsed except knoisphere as the second demisting layer flusher to rotational flow dust-removing layer and second,
The molecule that rotational flow dust-removing layer and the second demisting layer surface adhere to can fully be rinsed, ensure its operating efficiency, and
Increase its service life；The outer water circulation system of tower provides cooling water and at utmost ensures recycling for flushing water.
2nd, collecting layer is made up of multiple modularization liquid collecting units, is had and is efficiently collected flushing water, avoids flushing water from entering de-
Sulphur pond, influence solution in desulfurization pond；Cyclone dust catcher removes knoisphere for multiple rotational flow dust-removing units composition, irregular by doing
The spheroid increase filter water membrane area of motion, has the function that efficiently to remove degassing sol and escape ammonia；Meanwhile collecting layer, eddy flow
Except knoisphere uses modularized design, have that the construction period is short, convenient beneficial effect is changed in later maintenance.
3rd, it is reasonable that monolithic design is collected in the present invention, it is simple in construction, the pyramidal structure of rain cap upper end, flushing water is not flowed
Enter the exhaust gases passes under rain cap, but flow into collecting tank, it is convenient that flushing water is drained into collecting tank and then recycled.
Brief description of the drawings
Fig. 1 is ammonia process desulfuration tower high-efficiency dust removal system profile of the present invention.
Fig. 2 is collecting layer top view of the present invention.
Fig. 3 collects monomer profile for the present invention.
Fig. 4 is the first spraying layer, the second spraying layer, the 3rd spraying layer and the 4th spraying layer structural representation of the invention.
Wherein：1st, desulfurizing tower 2, desulfurization spraying layer 3, the first demisting layer 4, the first spraying layer 5, collecting layer 6,
Second spraying layer 7, rotational flow dust-removing layer 8, the 3rd spraying layer 9, the second demisting layer 10, the 4th spraying layer 11, backwater
Pipeline 12, clear water reserviors 13, cooler 14, inlet pipeline 15, collection monomer 16, collecting tank 17, the backwater mouth of pipe
18th, collect framework 19, rain cap 20, central cylinder 21, discharge outlet 22, encapsulant 23, spray main line 24,
Spray bye-pass 25, shower nozzle 26, top pressure closure 27, bypass 28, support bar.
Embodiment
Fig. 1 ~ 4 are highly preferred embodiment of the present invention, and 1 ~ 4 the present invention will be further described below in conjunction with the accompanying drawings.
With reference to Fig. 1, high effect dust cleaner of the present invention：Set gradually from bottom to top including desulfurizing tower 1, inside desulfurizing tower 1 de-
Sulphur spraying layer 2 and high-effective dust-removing layer, it is characterised in that：Described high-effective dust-removing layer is by the first demisting for setting gradually from bottom to top
The 3, first spraying layer 4 of layer, collecting layer 5, the second spraying layer 6, rotational flow dust-removing layer 7, the 3rd spraying layer 8, the second demisting layer 9 and the 4th
Spraying layer 10 forms, and desulfurizing tower 1 sets the water return pipeline 11 being sequentially connected, clear water reserviors 12, cooler 13 and inlet pipeline 14 outside,
Water return pipeline is connected with collecting layer 5, inlet pipeline and the first spraying layer 4, the second spraying layer 6, the 3rd spraying layer 8 and the 4th spray
Layer 10 is connected；Wherein, the spacing between each layer is 1.5m.Present invention process is by controlling the chilling temperature of cooler 13, to adjust
The temperature of cooling water is saved, so as to adjust flue-gas temperature.
With reference to Fig. 2 ~ 3, collecting layer 5 is made up of multiple collection monomers 15, and the edge of adjacent collector monomer 15 connection composition is collected
Part, collection portion point wrap around the connection tower body of desulfurizing tower 1, collect and collecting tank 16 is set between part and the tower body of desulfurizing tower 1, take off
The tower body side of sulphur tower 1 sets the backwater mouth of pipe 17 connected with collecting tank 16, and collecting monomer 15 includes collecting framework 18, the He of rain cap 19
Central cylinder 20, central cylinder 20 is positioned at the center for collecting framework 18, and the upper end of rain cap 19 is pyramidal structure, and the lower edge of rain cap 19 is with
The upper end of heart cylinder 20 is fixed, the side setting discharge outlet 21 of collection framework 18, neighbouring discharge outlet between adjacent collector framework 18
21 connections, the discharge outlet 21 for collecting portion outboard connect collecting tank 16, collect area filling between part and collecting tank 16 and seal
Material 22, central cylinder 20 are tubular structure, and the upside of central cylinder 20 is vertically arranged support bar 26, and support bar 26 is around central tube
The upper edge of body 20 interval setting is multiple, and rain cap 19 is fixed in central cylinder 20 by support bar 26.
With reference to Fig. 4, the first spraying layer 4, the second spraying layer 6, the 3rd spraying layer 8 and the 4th spraying layer 10, which include spray, to be responsible for
Road 23, spray bye-pass 24 and shower nozzle 25, spray main line 23 are connected with inlet pipeline 14, and spray bye-pass 24 is led in spray
The both sides of the horizontal direction of pipeline 23 are uniformly distributed, and spray bye-pass 24 outer end sets shower nozzle 25；Wherein, second spraying layer 6
Shower nozzle 25 is installed on the top of spray bye-pass 24 outer end, the first spraying layer 4, the 3rd spraying layer 8 and the 4th spraying layer 10
Shower nozzle 25 is installed on the lower section of spray bye-pass 24 outer end.
Described rotational flow dust-removing layer 7 is made up of the connection of multiple modularization cyclone dust catchers, and cyclone dust catcher includes removing
Dirt framework, cylinder, deflector and dedusting spiral, cylinder are vertically arranged in the middle part of dedusting framework, and cylindrical sides are protruded and set
Some deflectors are put, deflector is uniformly arranged along cylinder outer circumference, and dedusting spiral is movably arranged on the top of deflector；Respectively
Between modularization cyclone dust catcher between swirl-flow devices and the wall of desulfurizing tower 1 area filling encapsulant 22.
First demisting layer 3 is streamlined demister；Second demisting layer 9 is broken line type demister.
The dust collecting process of the present invention enters desulfurizing tower from bottom to top for flue gas, after desulfurization spraying layer carries out desulfurization spray
Into except knoisphere, in high-effective dust-removing layer, flue gas carries out a demisting by the first demister, then by the first spraying layer pair
Flue gas carries out spraying cooling, flue-gas temperature is down to 10-30 DEG C, subsequent flue gas carries out dedusting by rotational flow dust-removing layer, most passes through afterwards
Cross the second demisting layer and carry out secondary demisting, the second spraying layer and the 3rd spraying layer are rinsed to rotational flow dust-removing layer, the second demisting
4th spraying layer of layer top is rinsed to the second demister, the spray of the second spraying layer, the 3rd spraying layer and the 4th spraying layer
Water drenching is collected layer collection, then enters clear water reserviors by outlet pipeline, is then cooled down through cooler and pass through inlet pipeline
Recycled.
The course of work of dust arrester of the present invention：Flue gas enters after desulfurizing tower 1 by desulfurization spraying layer 2, is sprayed in desulfurization
Sulfur dioxide and part dust in the lower removing flue gas of spray effect of layer 2, the flue gas after desulfurization pass through the first demisting layer 3,
Removed in the presence of first demisting layer 3 and carry doctor solution droplet and fine particle in partial fume secretly, carry out first time dedusting, with
Afterwards, flue gas is by the cooled cooling of the second spraying layer 6, while reduces the water capacity in flue gas；Flue gas after cooling removes in eddy flow
Under the dustproof function of knoisphere 7, remaining fine particle in flue gas is removed, carries out second of dedusting, the spray of the second spraying layer the 6, the 3rd
Drenching layer 8 carries out lasting cleaning with top to rotational flow dust-removing layer 7 from below respectively, and then the second demisting layer 9 removes spray again
The droplet of flue gas entrainment is caused, the 4th spraying layer 10 is that the second demisting layer 9 carries out periodic cleaning, and flushing water is collected layer 5 and received
After collection, clear water reserviors 12 are entered by water return pipeline 11, the reclaimed water of clear water reserviors 12 uses through the cooling Posterior circle of subcooler 13, by entering
Water lines 14 enter the first spraying layer 4, the second spraying layer 6, the 3rd spraying layer 8 and the 4th spraying layer 10.
The above described is only a preferred embodiment of the present invention, being not the limitation for making other forms to the present invention, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
Imitate embodiment.But it is every without departing from technical solution of the present invention content, the technical spirit according to the present invention is to above example institute
Any simple modification, equivalent variations and the remodeling made, still fall within the protection domain of technical solution of the present invention.
Claims (9)
1. a kind of high effect dust cleaner suitable for ammonia process desulfuration tower, including desulfurizing tower（1）, desulfurizing tower（1）Inside is from bottom to top
Set gradually desulfurization spraying layer（2）With high-effective dust-removing layer, it is characterised in that：Described high-effective dust-removing layer by setting successively from bottom to top
The the first demisting layer put（3）, the first spraying layer（4）, collecting layer（5）, the second spraying layer（6）, rotational flow dust-removing layer（7）, the 3rd spray
Drenching layer（8）, the second demisting layer（9）With the 4th spraying layer（10）Composition, desulfurizing tower outside set the water return pipeline being sequentially connected
（11）, clear water reserviors（12）, cooler（13）And inlet pipeline（14）, water return pipeline and collecting layer（5）It is connected, inlet pipeline（14）
With the first spraying layer（4）, the second spraying layer（6）, the 3rd spraying layer（8）With the 4th spraying layer（10）It is connected.
2. the high effect dust cleaner according to claim 1 suitable for ammonia process desulfuration tower, it is characterised in that：It is described efficiently to remove
Each interlamellar spacing is 0.5-2.5 rice in knoisphere.
3. the high effect dust cleaner according to claim 1 suitable for ammonia process desulfuration tower, it is characterised in that：Described collection
Layer（5）Including multiple collection monomers（15）, adjacent collector monomer（15）Edge connection composition collects part, collects part and desulfurization
Tower（1）Collecting tank is set between tower body（16）, desulfurizing tower（1）Tower body side is set and collecting tank（16）The backwater mouth of pipe of connection
（17）, collect monomer（15）Including collecting framework（18）, rain cap（19）And central cylinder（20）, central cylinder（20）Positioned at collection
Framework（18）Center, rain cap（19）Upper end is pyramidal structure, rain cap（19）Lower edge and central cylinder（20）Upper end is fixed, and is collected
Framework（18）Side set discharge outlet（21）, adjacent collector framework（18）Between neighbouring discharge outlet（21）Connection, collection portion
The exceptionally discharge outlet of side（21）Connect collecting tank（16）, collect part and collecting tank（16）Between area filling encapsulant
（22）, central cylinder（20）For tubular structure, central cylinder（20）Upside is vertically arranged support bar（28）, support bar（28）It surround
Central cylinder（20）Upper edge is arranged at intervals multiple, rain cap（19）Pass through support bar（28）It is fixed on central cylinder（20）On.
4. the high effect dust cleaner according to claim 1 suitable for ammonia process desulfuration tower, it is characterised in that：First spray
Drenching layer, the second spraying layer, the 3rd spraying layer and the 4th spraying layer include spray main line（23）, spray bye-pass（24）And spray
Head（25）, spray main line（23）With inlet pipeline（14）It is connected, sprays bye-pass（24）In spray main line（23）It is horizontal
The both sides in direction are uniformly distributed, and spray bye-pass（24）Outer end sets shower nozzle（25）.
5. the high effect dust cleaner according to claim 4 suitable for ammonia process desulfuration tower, it is characterised in that：Second spray
Drenching layer（6）Shower nozzle（25）It is installed on spray bye-pass（24）The top of outer end, the first spraying layer（4）, the 3rd spraying layer（8）
With the 4th spraying layer（10）Shower nozzle（25）It is installed on spray bye-pass（24）The lower section of outer end.
6. the high effect dust cleaner according to claim 1 suitable for ammonia process desulfuration tower, it is characterised in that：Described eddy flow
Except knoisphere（7）It is made up of the connection of multiple modularization cyclone dust catchers, between each modularization cyclone dust catcher and swirl-flow devices
With desulfurizing tower（1）Area filling encapsulant between wall（22）.
7. the high effect dust cleaner according to claim 1 suitable for ammonia process desulfuration tower, it is characterised in that：Described first
Demisting layer（3）For streamlined or broken line type demister（9）.
8. the high effect dust cleaner according to claim 1 suitable for ammonia process desulfuration tower, it is characterised in that：Described second
Demisting layer（9）For streamlined or broken line type demister（9）.
9. one kind utilizes the dust collecting process of the high effect dust cleaner described in any one of claim 1 ~ 8, it is characterised in that：Flue gas is certainly
It is upper down to enter desulfurizing tower（1）, through desulfurization spraying layer（2）Enter high-effective dust-removing layer after carrying out desulfurization spray；In high-effective dust-removing layer
In, flue gas passes through the first demister（3）A demisting is carried out, then by the first spraying layer（4）Spraying cooling is carried out to flue gas,
Flue-gas temperature is set to be down to 10-30 DEG C, subsequent flue gas passes through rotational flow dust-removing layer（7）Dedusting is carried out, finally by the second demisting layer（9）
Carry out secondary demisting；Second spraying layer（6）With the 3rd spraying layer（8）To rotational flow dust-removing layer（7）It is rinsed, the second demisting layer
（9）4th spraying layer of top（10）Second demister is rinsed, the second spraying layer（6）, the 3rd spraying layer（8）With the 4th
Spraying layer（10）Shower water be collected layer（5）After collection, by outlet pipeline（11）Into clear water reserviors（12）, then through cooler
（13）Cooled down and pass through inlet pipeline（14）Recycled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711130229.7A CN107694269A (en) | 2017-11-15 | 2017-11-15 | A kind of high effect dust cleaner and dust collecting process suitable for ammonia process desulfuration tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711130229.7A CN107694269A (en) | 2017-11-15 | 2017-11-15 | A kind of high effect dust cleaner and dust collecting process suitable for ammonia process desulfuration tower |
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Cited By (1)
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