CN104906949A - Device for deep purification of wet desulphurization absorption towersmoke - Google Patents
Device for deep purification of wet desulphurization absorption towersmoke Download PDFInfo
- Publication number
- CN104906949A CN104906949A CN201510340946.7A CN201510340946A CN104906949A CN 104906949 A CN104906949 A CN 104906949A CN 201510340946 A CN201510340946 A CN 201510340946A CN 104906949 A CN104906949 A CN 104906949A
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- China
- Prior art keywords
- absorption tower
- flue gas
- wet desulphurization
- smoke
- deep purifying
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 40
- 238000000746 purification Methods 0.000 title abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 238000005507 spraying Methods 0.000 claims abstract description 11
- 239000003546 flue gas Substances 0.000 claims description 41
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 40
- 239000007789 gas Substances 0.000 claims description 15
- 235000007164 Oryza sativa Nutrition 0.000 claims description 3
- 238000003491 array Methods 0.000 claims description 3
- 235000009566 rice Nutrition 0.000 claims description 3
- 240000007594 Oryza sativa Species 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 20
- 239000000779 smoke Substances 0.000 abstract description 10
- 239000000443 aerosol Substances 0.000 abstract description 9
- 239000000428 dust Substances 0.000 abstract description 6
- 239000002002 slurry Substances 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 4
- 238000006477 desulfuration reaction Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 230000023556 desulfurization Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000011941 photocatalyst Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 241000209094 Oryza Species 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- -1 sulfate radical Chemical class 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 102000054766 genetic haplotypes Human genes 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000012716 precipitator Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The inventionrelates to the technical field ofsmoke purification and in particular relates to a device for deep purification of wet desulphurization absorption towersmoke. The device comprises an absorption tower, wherein a slurry tank is arranged at the bottom of theabsorption tower; a smoke outlet is formed in the top of the side wall of theabsorption tower; a smoke inlet is formed in the side wall, higher than the liquid level of the slurry tank, of the absorption tower; a spraying layer and a supporting plate are arranged from bottom to up in sequencebetween the smoke inlet and the smoke outletabsorption tower; and themaximum number of deep purifiers are arranged on the support plate.Kinetic energy of the smoke in the absorption towercan be utilized; gas-liquidimpact isgenerated at blades of rotational flow plates andwalls of rotational flowcylinders when the smoke passes through the rotational flow plates of thepurifiers so thattiny particulate matters such asthin liquid drops, tiny dust particles and aerosol in the smoke impact,aggregate andagglomerate with one another to form large liquid drops; the large liquid drops are captured by surface liquid films of therotational flowcylinders, thusremovingthe tiny particulate matters and reachingthe aim of deep purification of the smoke.
Description
Technical field
The present invention relates to flue gases purification field, be specifically related to a kind of device for wet desulphurization absorption tower flue gas deep purifying.
Background technology
At present, domestic flue gas or industrial tail gas pollutant abatement technology more, wherein comparative maturity, representative technology have: administer sulfur dioxide (SO
2) Wet Flue Gas Desulfurization Technique such as limestone-gypsum method, ammonia process, Dual alkali that pollutes, all need that demister is installed after the spray washing purification of Wet Flue Gas Desulfurization Technique and remove the fine droplet produced in spray process; With regard to current actual conditions, no matter be that Flat defroster or ridge type demister are difficult to reach efficiency meet the requirement of environmental protection to the removal efficiency being less than in 5um drop and flue gas the finely ground particles such as aerocolloidal sulfate radical, inferior sulfate radical, nitrate anion, nitrite anions being less than 5um dust and forming PM2.5.For meeting more and more strict environmental requirement, wet desulphurization device rear end all needs to install Wet type electric dust-removing device additional and carries out deep purifying.Although wet-esp can effectively remove finely ground particles and aerosol, wet-esp also exists process equipment both bulk, and take up room large, initial cost is high, and operation energy consumption is high, and constructed item transforms the problems such as difficulty is large.
Chinese patent CN 101837238 A discloses a kind of desulfuration absorbing tower, comprising: tower body, and the top of described tower body has neat stress outlet and the bottom of described tower body has mixture export; Mixing tube, the lower end of described mixing tube is connected with the bottom of tower body, and the upper end of described mixing tube has smoke inlet; And desulfurizer nozzle, described desulfurizer nozzle is inserted into to injection desulfurization agent in mixing tube in mixing tube, and described desulfurizer nozzle is inserted in mixing tube from described smoke inlet.This patent could not solve the problem of deep purifying flue gas.
Summary of the invention
In order to overcome defect of the prior art, the invention provides a kind of device for deep cleaning that can be used for after wet desulphurization device spray, the kinetic energy of flue gas in absorption tower can be utilized, making flue gas produce gas-liquid impingement through spiral board at the blade of spiral board and eddy flow barrel makes the reunion that collides with each other of the finely ground particles such as the fine drop in flue gas, fine solid particle particle, aerosol be condensed into large drop, large drop is caught by whirl cylinder surface liquid film and is reached removal finely ground particles, reaches the object of deep purifying flue gas.
The present invention is achieved through the following technical solutions: a kind of device for wet desulphurization absorption tower flue gas deep purifying, comprise the absorption tower that bottom is provided with stock tank, the top side wall on described absorption tower is provided with exhanst gas outlet, described absorption tower is provided with gas approach on the sidewall higher than stock tank liquid level, according to being sequentially with spraying layer and gripper shoe from bottom to top between described gas approach and exhanst gas outlet, described gripper shoe is provided with several deep purifiers.
Further, described deep purifier comprises the whirl cylinder that bottom centre position is provided with wash tub pipe, and the top center of described whirl cylinder is provided with uviol lamp, and described wash tub pipe is provided with flooding nozzle and spiral board.
Further, described spiral board comprises the multiple blades according to concentric arrays, and described blade is provided with the inclination angle tilted relative to the cross section of whirl cylinder, the angular range at described inclination angle 20 ~ 60 °.
Further, the projection Duplication scope of described blade is between-20% ~+50%.
Further, described spiral board is one and is arranged on flooding nozzle bottom.
Further, described spiral board is multistage setting and is upper and lower serial arrangement.
Further, between adjacent described spiral board, distance range is 0.15 ~ 1.5 meter.
Further, the spiral board top of described whirl cylinder center is provided with blind plate, and the diameter range of described blind plate is 0.1-0.2 rice.
Further, within the scope of 1 ~ 3 meter that described gripper shoe is arranged on spraying layer.
Further, described spraying layer is multilayer and equidistantly arranges.
Compared with prior art, superior effect is device for wet desulphurization absorption tower flue gas deep purifying of the present invention:
1, traditional ridge type or plate-type dedusting device need not be set in absorbing tower.The flow of flue gas speed that purifier of the present invention allows is high, and admissible flue gas flow rate is 4-6m/s, thus need not strengthen absorption tower diameter, utilizes former absorption tower, without the need to transforming or arrange independent wet electrical dust precipitator behind absorption tower.The height of purifier of the present invention is low, only has 3m high, height with ridge in conventional tower or board-like demister height suitable;
2, dedusting demist and aerosol purification efficiency high.The finely ground particles such as the fine drop in flue gas, fine solid particle particle, aerosol effectively can be removed by this device.Wet flue gas after spray cleaning is through electromechanical integration device for deep cleaning, in whirl cylinder and above form violent rotation and the disturbance of gas-liquid two-phase, make the reunion that collides with each other of the finely ground particles such as the fine drop in flue gas, fine solid particle particle, aerosol be condensed into large drop, large drop is caught by whirl cylinder surface liquid film the purification object reaching and remove finely ground particles again.Meanwhile, formed after flowing through spiral-plate leaf in flue gas and rotate ascending motion, the pollutant in flue gas accelerates to move to whirl cylinder under centrifugal action.Because whirl cylinder surface scribbles photocatalyst, the materials such as the aerosol in pollutant, NOx are decomposed into harmless N under catalytic action
2and water;
3, because traditional wet electric cleaner needs when cleaning to stop electric discharge, the dust emission high level of short-term is therefore had.The present invention, owing to itself having dust removal with machine effect, can ensure that efficiency of dust collection declines few between flush period;
4, high, the difficulty of space requirement that this invention also solves electric precipitation transformation is large, the transformation cycle is long, initial cost and the problem such as operating cost is high, only space, original absorption tower need be utilized to transform, not change absorption tower external structure;
5, this system is succinct, and O&M is simple, and system reliability is high;
6, the present invention can play certain de-NOx effect, ultra-clean row can be lowered to effect to present NOx.
Accompanying drawing explanation
Fig. 1 is the structural representation of the device for wet desulphurization absorption tower flue gas deep purifying of the present invention;
Fig. 2 is of the present invention for the deep purifier arrangement architecture figure in the device of wet desulphurization absorption tower flue gas deep purifying;
Fig. 3 is the internal structure schematic diagram of the deep purifier in the present invention.
Reference numeral is as follows:
1-absorption tower, 2-stock tank, 3-gas approach, 4-spraying layer, 5-gripper shoe, 6-deep purifier, 61-wash tub pipe, 62-whirl cylinder, 63-spiral board, 64-flooding nozzle, 65-uviol lamp, 7-exhanst gas outlet, 8-blind plate.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the invention is described in further detail.
As Figure 1-3, illustrate a kind of device for wet desulphurization absorption tower flue gas deep purifying provided by the invention, comprise the absorption tower 1 that bottom is provided with stock tank 2, the top side wall on described absorption tower 1 is provided with exhanst gas outlet 7, described absorption tower 1 is provided with gas approach 3 on the sidewall higher than stock tank 2 liquid level, according to being sequentially with spraying layer 4 and gripper shoe 5 from bottom to top between described gas approach 3 and exhanst gas outlet 7, described gripper shoe 5 is provided with several deep purifiers 6 arranged according to maximum quantity queueing discipline.Deep purifier 6 comprises the whirl cylinder 62 that bottom centre position is provided with wash tub pipe 61, and the top center of described whirl cylinder 62 is provided with uviol lamp 65, and described wash tub pipe 61 is provided with flooding nozzle 64 and spiral board 63.Preferred described spiral board 63 comprises the multiple blades according to concentric arrays, described blade is provided with the inclination angle tilted relative to the cross section of whirl cylinder 62, the angular range at described inclination angle 20 ~ 60 °, the projection Duplication scope of described blade is between-20% ~+50%, and project Duplication: the overlapping area of all blade orthographic projections deducts the area sum of difference divided by all blade orthographic projections of the interval area between all blade orthographic projections.In the present embodiment, preferred spiral board 63 is one and is arranged on flooding nozzle 64 bottom.Preferred again, described spiral board 63 is multistage setting and is upper and lower serial arrangement, and between adjacent described spiral board 63, distance range is 0.15 ~ 1.5 meter.Spiral board 63 top of described whirl cylinder 62 center is provided with blind plate 8, and the diameter range of described blind plate 8 is 0.1-0.2 rice, and described gripper shoe 5 is arranged within the scope of 1 ~ 3 meter on spraying layer 4.Wherein said spraying layer 4 is multilayer and equidistantly arranges.The material of the blade of spiral board 63 selects acid-resistant stainless steel respectively, the one added in the carbon steel of painting glass flake anticorrosive coat, fiberglass, PP and PVC, and the material of whirl cylinder 62 is stainless steel, plastics etc.
As shown in Figure 2, deep purifier 6 rearranges for multiple haplotype.The quantity of each absorption tower 1 deep purifier is determined by the diameter on absorption tower, is as the criterion with the arrangement of maximum quantity.Space between each deep purifier and between clarifier device and tower wall adopts blind plate 8 shutoff.The blind plate 8 of shutoff plays spacing and fixing effect simultaneously.
As shown in Figure 3, deep purifier 6 is up-down structure, and bottom is spiral board mechanical type dedusting Defrosting structure, and top is that uviol lamp 65 adds photocatalyst, and the progression of spiral board 63 and the height of uviol lamp 65 need to determine according to final clean-up effect.Blade realization in spiral board 63 is to the change of the direction of motion of finely ground particles in flue gas and flue gas and acceleration, thus make flue gas small water droplets and finely ground particles form turbulent flow and fully clash into, make the reunion that collides with each other of the finely ground particles such as the fine drop in flue gas, fine solid particle particle, aerosol be condensed into large drop.Because flue gas be rotation rising whirl cylinder 62 in by its type of flow after the blade of spiral board 63, drop in flue gas is separated under the influence of centrifugal force and reaches whirl cylinder 62 surface from flue gas, then is caught to reach by whirl cylinder wall surface liquid film and efficiently remove finely ground particles.Meanwhile, the uviol lamp 65 being built in whirl cylinder 62 center discharges ultraviolet light, makes photocatalyst have NO_x removal, NH under the irradiation of ultraviolet light
3with the catalyst of the polluters such as aerosol.
The present invention is not limited to above-mentioned embodiment, and when not deviating from flesh and blood of the present invention, any distortion that it may occur to persons skilled in the art that, improvement, replacement all fall into protection scope of the present invention.
Claims (10)
1. the device for wet desulphurization absorption tower flue gas deep purifying, comprise the absorption tower (1) that bottom is provided with stock tank (2), the top side wall on described absorption tower (1) is provided with exhanst gas outlet (7), described absorption tower (1) is provided with gas approach (3) on the sidewall higher than stock tank (2) liquid level, it is characterized in that, according to being sequentially with spraying layer (4) and gripper shoe (5) from bottom to top between described gas approach (3) and exhanst gas outlet (7), described gripper shoe (5) is provided with several deep purifiers (6).
2. according to claim 1 for the device of wet desulphurization absorption tower flue gas deep purifying, it is characterized in that, described deep purifier (6) comprises the whirl cylinder (62) that bottom centre position is provided with wash tub pipe (61), the top center of described whirl cylinder (62) is provided with uviol lamp (65), and described wash tub pipe (61) is provided with flooding nozzle (64) and spiral board (63).
3. according to claim 2 for the device of wet desulphurization absorption tower flue gas deep purifying, it is characterized in that, described spiral board (63) comprises the multiple blades according to concentric arrays, described blade is provided with the inclination angle tilted relative to the cross section of whirl cylinder (62), the angular range at described inclination angle 20 ~ 60 °.
4. according to claim 3 for the device of wet desulphurization absorption tower flue gas deep purifying, it is characterized in that, the projection Duplication scope of described blade is between-20% ~+50%.
5. according to claim 2 for the device of wet desulphurization absorption tower flue gas deep purifying, it is characterized in that, described spiral board (63) is one and is arranged on flooding nozzle (64) bottom.
6. according to claim 2 for the device of wet desulphurization absorption tower flue gas deep purifying, it is characterized in that, described spiral board (63) is for multistage setting and be upper and lower serial arrangement.
7. according to claim 6 for the device of wet desulphurization absorption tower flue gas deep purifying, it is characterized in that, between adjacent described spiral board (63), distance range is 0.15 ~ 1.5 meter.
8. according to claim 2 for the device of wet desulphurization absorption tower flue gas deep purifying, it is characterized in that, spiral board (63) top of described whirl cylinder (62) center is provided with blind plate (8), and the diameter range of described blind plate (8) is 0.1-0.2 rice.
9. according to claim 1 for the device of wet desulphurization absorption tower flue gas deep purifying, it is characterized in that, described gripper shoe (5) is arranged within the scope of 1 ~ 3 meter on spraying layer (4).
10. according to claim 9 for the device of wet desulphurization absorption tower flue gas deep purifying, it is characterized in that, described spraying layer (4) is for multilayer and equidistantly arrange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510340946.7A CN104906949B (en) | 2015-06-18 | 2015-06-18 | A kind of device for wet desulphurization absorption tower flue gas deep purifying |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510340946.7A CN104906949B (en) | 2015-06-18 | 2015-06-18 | A kind of device for wet desulphurization absorption tower flue gas deep purifying |
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| Publication Number | Publication Date |
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| CN104906949A true CN104906949A (en) | 2015-09-16 |
| CN104906949B CN104906949B (en) | 2018-09-18 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105498527A (en) * | 2016-01-04 | 2016-04-20 | 田鹏程 | Device for deep purification of smoke |
| CN105854561A (en) * | 2016-05-10 | 2016-08-17 | 浙江天蓝环保技术股份有限公司 | Device and process for coordinative treatment of smoke desulfuration and dedusting |
| CN106422740A (en) * | 2016-11-11 | 2017-02-22 | 中国大唐集团科学技术研究院有限公司 | Centrifugal type deep flue gas purification device provided with shunting ring and desulfurization tower |
| CN108579303A (en) * | 2018-05-30 | 2018-09-28 | 唐山钢铁集团有限责任公司 | A kind of boiler smoke particle purifying device and method |
| WO2018176371A1 (en) * | 2017-03-31 | 2018-10-04 | 通用电气公司 | Flue gas treatment device and system |
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| CN108579303A (en) * | 2018-05-30 | 2018-09-28 | 唐山钢铁集团有限责任公司 | A kind of boiler smoke particle purifying device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104906949B (en) | 2018-09-18 |
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