CN204841408U - Flue gas desulfurization system - Google Patents
Flue gas desulfurization system Download PDFInfo
- Publication number
- CN204841408U CN204841408U CN201520518857.2U CN201520518857U CN204841408U CN 204841408 U CN204841408 U CN 204841408U CN 201520518857 U CN201520518857 U CN 201520518857U CN 204841408 U CN204841408 U CN 204841408U
- Authority
- CN
- China
- Prior art keywords
- water pipe
- flue gas
- desulfurizer
- reaction plate
- slurry pool
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 239000003546 flue gas Substances 0.000 title claims abstract description 23
- 238000006477 desulfuration reaction Methods 0.000 title abstract description 19
- 230000023556 desulfurization Effects 0.000 title abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 54
- 238000006243 chemical reaction Methods 0.000 claims abstract description 23
- 239000000428 dust Substances 0.000 claims abstract description 14
- 239000000779 smoke Substances 0.000 claims abstract description 11
- 239000002002 slurry Substances 0.000 claims description 28
- 239000000376 reactant Substances 0.000 claims description 14
- 239000012530 fluid Substances 0.000 claims description 13
- 239000007789 gas Substances 0.000 claims description 13
- 239000007921 spray Substances 0.000 claims description 13
- 239000013049 sediment Substances 0.000 claims description 8
- 238000007596 consolidation process Methods 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 4
- 238000011001 backwashing Methods 0.000 abstract 4
- 239000012295 chemical reaction liquid Substances 0.000 abstract 2
- 125000004122 cyclic group Chemical group 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 12
- 238000000034 method Methods 0.000 description 9
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 6
- 235000011941 Tilia x europaea Nutrition 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000004571 lime Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000010926 purge Methods 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a flue gas desulfurization system, including flue gas passageway, dust collector, desulphurization unit, circulating pipe, circulating water pump, thick liquid pond, backwashing water pipe and play liquid water pipe, the flue gas passageway is linked together with dust collector, and dust collector is linked together through the lower extreme of chimney intake with desulphurization unit, the inside from the top down of desulphurization unit installs defroster, shower, compressed air pipe, reaction plate in proper order, and the reaction plate setting is equipped with smoke deflector in the top of chimney intake, chimney intake department, open at the desulphurization unit top has the flue export, and the desulphurization unit bottom is equipped with the export of reaction liquid, and the export of reaction liquid is connected with the backwashing water pipe, is equipped with backwashing water pump, first governing valve on the backwashing water pipe. The utility model discloses the desulfurization is efficient, the cyclic utilization doctor solution, and no secondary pollution sets up anti - washing unit, improves greatly the consolidation condition among the desulphurization unit, installs easy and simple to handlely, and the system can steady in a long -termly move.
Description
[technical field]
The utility model relates to the technical field of flue gas purifying equipment technical field, particularly flue gas desulphurization system.
[background technology]
Sulfur dioxide is very serious to the pollution of air, the pollution that excess emissions sulfur dioxide can cause acid rain etc. serious, to the control of sulfur dioxide and important.Often can not Thorough combustion when using coal, the flue gas of discharge carries the pollutant such as dust and sulfur dioxide and enters in the air, also brings great threat to the healthy of people.After burning, flue gas desulfurization intercepts and captures sulfur dioxide absorption by increasing absorption tower outward at back-end ductwork, thus reaches the effect improving desulfuration efficiency.After burning, flue gas desulfurization is generally dry method and wet method two kinds, and dry desulfurization has spray drying process, flue sprays into absorbent etc., and what the absorbent classification application that wet desulphurization uses was more mainly contains limestone-based process, sodium alkali and ammonia process.
Desulfurization of Wet Limestone-gypsum technology is the mainstream technology of current China flue gas desulfurization, but this technology still exists multinomial technological deficiency.First, when flue gas enters desulfurizing tower, due to inertia, gas is skewness in tower, just higher to the region flow velocity of flue entrance, causes gas-liquid mass transfer poor effect like this, air-flow fluctuation of service, not only have impact on desulfuration efficiency, also impacts the water removal effect of demister; Secondly, gypsum easy consolidation in desulphurization plant that this method produces, results in blockage to desulphurization plant, affects result of use.After using a period of time, need to change the parts in desulphurization plant, cause cost to increase.
[utility model content]
The purpose of this utility model solves the problems of the prior art exactly, and propose a kind of flue gas desulphurization system, desulfuration efficiency is high, recycle doctor solution, non-secondary pollution, back purge system is set, greatly improve the consolidation situation in desulfurizer, device is easy and simple to handle, and system can steady in a long-termly be run.
For achieving the above object, the utility model proposes a kind of flue gas desulphurization system, comprise exhaust gases passes, dust arrester, desulfurizer, circulating water pipe, water circulating pump, slurry pool, backwash water pipe and fluid water pipe, described exhaust gases passes is connected with dust arrester, and dust arrester is connected with the lower end of desulfurizer by chimney intake; Demister, shower, compressed air hose, reaction plate are installed from top to bottom successively in described desulfurizer inside, and reaction plate is arranged on the top of chimney intake, and chimney intake place is provided with smoke deflector; Described desulfurizer top has flue outlet, be provided with reactant liquor outlet bottom desulfurizer, reactant liquor outlet is connected with backwash water pipe, and backwash water pipe is provided with backwash pump, the first control valve, reactant liquor outlet is also connected with fluid water pipe, and fluid water pipe is provided with the second control valve.
As preferably, described compressed air hose is provided with some puff prots, and the direction of the corresponding reaction plate of puff prot is arranged, and the quantity of reaction plate is two-layer, and reaction plate is evenly equipped with reacting hole.
As preferably, described shower is provided with several atomizing spray heads, atomizing spray head is uniformly distributed along the axial and circumferential of desulfurizer.
As preferably, described shower is connected with slurry pool upper end by circulating water pipe, and circulating water pipe is provided with water circulating pump, and reactant liquor outlet is connected with slurry pool lower end by fluid water pipe, is provided with filter in the middle part of slurry pool.
As preferably, described slurry pool top connects liquid-in pipe, and liquid-in pipe is provided with the 3rd valve, and slurry pool connects sediment pipeline, and sediment pipeline is provided with the 4th valve.
The beneficial effects of the utility model: the utility model makes air-flow slowly be evenly distributed by the effect of smoke deflector, the atomizing spray head that axial and circumferential are arranged makes desulfurization more thorough, the solubility of absorption product is large, desulfuration efficiency is high, regeneration and precipitate and separate, outside tower, can reduce the fouling condition in desulfurizer and pipeline greatly; Recycle doctor solution, non-secondary pollution, back purge system is set, the consolidation situation in desulfurizer is improved greatly; Device is easy and simple to handle, and system can steady in a long-termly be run.
Feature of the present utility model and advantage will be described in detail by reference to the accompanying drawings by embodiment.
[accompanying drawing explanation]
Fig. 1 is the structural representation of a kind of flue gas desulphurization system of the utility model.
In figure: 1-exhaust gases passes, 2-dust arrester, 3-chimney intake, 4-desulfurizer, 41-smoke deflector, 42-reactant liquor exports, 43-reaction plate, 44-compressed air hose, 45-shower, 46-atomizing spray head, 47-demister, 48-flue outlet, 5-circulating water pipe, 6-water circulating pump, 7-slurry pool, 71-filter, 72-liquid-in pipe, 721-the 3rd valve, 73-sediment pipeline, 731-the 4th valve, 8-backwash water pipe, 81-backwash pump, 82-first control valve, 9-fluid water pipe, 91-second control valve.
[detailed description of the invention]
Consult Fig. 1, the utility model, comprise exhaust gases passes 1, dust arrester 2, desulfurizer 4, circulating water pipe 5, water circulating pump 6, slurry pool 7, backwash water pipe 8 and fluid water pipe 9, described exhaust gases passes 1 is connected with dust arrester 2, and dust arrester 2 is connected by the lower end of chimney intake 3 with desulfurizer 4; Demister 47, shower 45, compressed air hose 44, reaction plate 43 are installed from top to bottom successively in described desulfurizer 4 inside, and reaction plate 43 is arranged on the top of chimney intake 3, and chimney intake 3 place is provided with smoke deflector 41; Described desulfurizer 4 top has flue outlet 48, reactant liquor outlet 42 is provided with bottom desulfurizer 4, reactant liquor outlet 42 is connected with backwash water pipe 8, backwash water pipe 8 is provided with backwash pump 81, first control valve 82, reactant liquor outlet 42 is also connected with fluid water pipe 9, and fluid water pipe 9 is provided with the second control valve 91.Described compressed air hose 44 is provided with some puff prots, and the direction of the corresponding reaction plate 43 of puff prot is arranged, and the quantity of reaction plate 43 is two-layer, and reaction plate 43 is evenly equipped with reacting hole.Described shower 45 is provided with several atomizing spray heads 46, atomizing spray head 46 is uniformly distributed along the axial and circumferential of desulfurizer 4.Described shower 45 is connected with slurry pool 7 upper end by circulating water pipe 5, and circulating water pipe 5 is provided with water circulating pump 6, and reactant liquor outlet 42 is connected with slurry pool 7 lower end by fluid water pipe 9, is provided with filter 71 in the middle part of slurry pool 7.Described slurry pool 7 top connects liquid-in pipe 72, and liquid-in pipe 72 is provided with the 3rd valve 721, and slurry pool 7 connects sediment pipeline 73, and sediment pipeline 73 is provided with the 4th valve 731.
Utility model works process:
A kind of flue gas desulphurization system of the utility model in the course of the work, during desulfurization process, close the first valve 82, 4th valve 731, open the second valve 91, 3rd valve 721, flue gas enters from exhaust gases passes 1, first carry out rough dusting process, then desulfurizer 4 is entered, the smoke deflector 41 be provided with in chimney intake 3 makes air velocity slow down, and make flue gas direction then dispersed in desulfurizer 4 downwards, lime slurry enters desulfurizer 4 from circulating water pipe 5, spray out by atomizing spray head 46 again, doctor solution is fallen on reaction plate 43 and is formed water layer, sulfur-containing smoke gas passes reaction plate 43 below reaction plate 43, sulfur-containing smoke gas can fully contact with lime slurry, a small amount of unreacted sulfur-containing smoke gas can directly and the lime slurry secondary response again that evenly sprays of axial and circumferential, desulfuration efficiency is high.Desulfurization fume removes steam through demister 47 again, discharges from flue outlet 3.
The lime slurry absorbing sulfur dioxide flows into slurry pool 7 lower end from the reactant liquor outlet 42 bottom desulfurizer 4, desulfurization product after precipitation is discharged from sediment pipeline 73, the liquid filtered through the filter 71 of slurry pool 7 is transmitted back in desulfurizer 4 by water circulating pump 6, complete circulation, in order to keep the relatively stable of lime slurry concentration, fill into lime slurry by liquid-in pipe 72.
During backwash, close the second valve 91, the 3rd valve 721, open the first valve 82, the 4th valve 731, flushing water enters desulfurizer 4 from backwash water pipe 8, flow into slurry pool 7 from circulating water pipe 5, compressed air hose 44 is constantly ventilated, and flushing water rinses facing to reaction plate 43, under the effect of Compressed Gas and hydrodynamic cleaning, the reaction plate 43 of blocking is rinsed well.
The utility model makes air-flow slowly be evenly distributed by the effect of smoke deflector 41, the atomizing spray head 46 that axial and circumferential are arranged makes desulfurization more thorough, and the solubility of absorption product is large, and desulfuration efficiency is high, regeneration and precipitate and separate, outside tower, can reduce the fouling condition in desulfurizer 4 and pipeline greatly; Recycle doctor solution, non-secondary pollution, back purge system is set, the consolidation situation in desulfurizer 4 is improved greatly; Device is easy and simple to handle, and system can steady in a long-termly be run.
Above-described embodiment is to explanation of the present utility model, is not to restriction of the present utility model, anyly all belongs to protection domain of the present utility model to the scheme after the utility model simple transformation.
Claims (5)
1. a flue gas desulphurization system, it is characterized in that: comprise exhaust gases passes (1), dust arrester (2), desulfurizer (4), circulating water pipe (5), water circulating pump (6), slurry pool (7), backwash water pipe (8) and fluid water pipe (9), described exhaust gases passes (1) is connected with dust arrester (2), and dust arrester (2) is connected by the lower end of chimney intake (3) with desulfurizer (4); Described desulfurizer (4) inside installs demister (47), shower (45), compressed air hose (44), reaction plate (43) from top to bottom successively, reaction plate (43) is arranged on the top of chimney intake (3), and chimney intake (3) place is provided with smoke deflector (41); Described desulfurizer (4) top has flue outlet (48), desulfurizer (4) bottom is provided with reactant liquor outlet (42), reactant liquor outlet (42) is connected with backwash water pipe (8), backwash water pipe (8) is provided with backwash pump (81), the first control valve (82), reactant liquor outlet (42) is also connected with fluid water pipe (9), and fluid water pipe (9) is provided with the second control valve (91).
2. a kind of flue gas desulphurization system as claimed in claim 1, it is characterized in that: described compressed air hose (44) is provided with some puff prots, the direction of the corresponding reaction plate (43) of puff prot is arranged, the quantity of reaction plate (43) is two-layer, and (43) are evenly equipped with reacting hole to reaction plate.
3. a kind of flue gas desulphurization system as claimed in claim 1, it is characterized in that: described shower (45) is provided with several atomizing spray heads (46), atomizing spray head (46) is uniformly distributed along the axial and circumferential of desulfurizer (4).
4. a kind of flue gas desulphurization system as claimed in claim 1, it is characterized in that: described shower (45) is connected with slurry pool (7) upper end by circulating water pipe (5), circulating water pipe (5) is provided with water circulating pump (6), reactant liquor outlet (42) is connected with slurry pool (7) lower end by fluid water pipe (9), and slurry pool (7) middle part is provided with filter (71).
5. a kind of flue gas desulphurization system as claimed in claim 1, it is characterized in that: described slurry pool (7) top connects liquid-in pipe (72), liquid-in pipe (72) is provided with the 3rd valve (721), slurry pool (7) connects sediment pipeline (73), and sediment pipeline (73) is provided with the 4th valve (731).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520518857.2U CN204841408U (en) | 2015-07-16 | 2015-07-16 | Flue gas desulfurization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520518857.2U CN204841408U (en) | 2015-07-16 | 2015-07-16 | Flue gas desulfurization system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204841408U true CN204841408U (en) | 2015-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520518857.2U Expired - Fee Related CN204841408U (en) | 2015-07-16 | 2015-07-16 | Flue gas desulfurization system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204841408U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107569994A (en) * | 2017-09-29 | 2018-01-12 | 禹州市维立特化工有限公司 | A kind of alkali liquor absorption tower with filler back purge system |
| CN108939856A (en) * | 2018-07-31 | 2018-12-07 | 苏州科博思设备工程有限公司 | A kind of devulcanizer |
| CN109107320A (en) * | 2018-09-21 | 2019-01-01 | 胡新军 | A kind of desulfurizing industrial fume tower and method |
| CN109925862A (en) * | 2018-12-25 | 2019-06-25 | 四川大学 | A kind of VOC exhaust treatment system and its processing method |
-
2015
- 2015-07-16 CN CN201520518857.2U patent/CN204841408U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107569994A (en) * | 2017-09-29 | 2018-01-12 | 禹州市维立特化工有限公司 | A kind of alkali liquor absorption tower with filler back purge system |
| CN108939856A (en) * | 2018-07-31 | 2018-12-07 | 苏州科博思设备工程有限公司 | A kind of devulcanizer |
| CN109107320A (en) * | 2018-09-21 | 2019-01-01 | 胡新军 | A kind of desulfurizing industrial fume tower and method |
| CN109925862A (en) * | 2018-12-25 | 2019-06-25 | 四川大学 | A kind of VOC exhaust treatment system and its processing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 Termination date: 20160716 |