CN203291675U - Flue gas desulfurization absorber with aerosol controlling function - Google Patents
Flue gas desulfurization absorber with aerosol controlling function Download PDFInfo
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- CN203291675U CN203291675U CN201320354373XU CN201320354373U CN203291675U CN 203291675 U CN203291675 U CN 203291675U CN 201320354373X U CN201320354373X U CN 201320354373XU CN 201320354373 U CN201320354373 U CN 201320354373U CN 203291675 U CN203291675 U CN 203291675U
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Abstract
The utility model provides a flue gas desulfurization absorber with an aerosol controlling function. The flue gas desulfurization absorber comprises an absorber body, an absorbing liquid tank, an absorbing layer and a washing layer. The absorbing liquid tank, the absorbing layer and the washing layer are arranged in the absorber body sequentially from down to up. A flue gas inlet is formed on the lower portion of the absorbing layer, and the flue gas outlet is formed on the top of the absorber body; the lower portion of the absorbing liquid tank is provided with an oxidated air distributing pipe and an absorbing liquid distributor; the absorbing layer is in a multi-segment and multi-layer structure, and comprises an absorbing layer separating plate, an absorbing liquid distributor and an absorbing liquid demister which are arranged sequentially from down to up; the washing layer is in a hollow-absorber structure, and comprises an washing layer separating plate, an washing liquid distributor and an washing liquid demister which are arranged sequentially from down to up. By the aid of the flue gas desulfurization absorber, the aerosol in the desulfurized flue gas is reduced, requirements of emission standard of the aerosol and the flue gas are met, influences on surrounding environment by byproducts of desulfurization equipment are optimized effectively, recycling rate of desulfurizer is increased, and economy of operations is improved accordingly.
Description
Technical field
The utility model belongs to field of environment protection, is specifically related to a kind of flue gas desulfurization exhaust gas processing device.
Background technology
In recent years, various places haze weather increases, and causes very large impact for the people's life and work, has endangered healthy and production safety, and complaints are heard everywhere to this in society, and it is main fine particulates that PM2.5 in atmosphere sets about administering in country.SO
2Being one of Air Pollutant Discharge, is also one of main source of PM2.5 fine particulates.
Remove at present the SO in flue gas
2Mainly wet flue gas desulfurization technique, certainly existing the aerosol that comprise flue dust, absorbent etc. of drop as leading take absorption liquid in flue gas after its desulfurization of the technique of wet type desulfurizing decision itself, reduction flue gas with temperature in discharge process is separated out condensed water, form the rainfall of desulfurizer periphery, usually according to the difference of desulfurizing agent, be called " gypsum rain ", " sulphur ammonium rain " etc.The desulfurization fume of discharging is the smoke, mists and clouds such as dignified white, blueness and is difficult to diffusion, and the plume of formation more than several kilometers, cause serious visual pollution.Smoke, mists and clouds, " gypsum rain ", " sulphur ammonium rain " are not only the loss of desulfurizing agent and accessory substance thereof, and surrounding enviroment, equipment are directly formed pollution, are also one of haze weather origin causes of formation.
Desulfurizer is general adopts 2 to 3 layers of demister clean flue gas is processed, and only can remove the drop of the absorption liquid of the 20 above particle diameters of μ m, to aerosol poor effect such as control fine particulates.In recent years more concerned is the investment that the wet-esp technology improves desulfurizer greatly, increases the desulfurizer energy consumption, thereby has greatly increased desulphurization cost.
Summary of the invention
The purpose of this utility model is to provide a kind of desulfuration absorbing tower that possesses the flue gas aerosol collecting function, can not only remove sulfur dioxide by this equipment, aerosol in clean flue gas is significantly reduced, solved the not good problem of desulfurization fume exhaust visual effect, further improve the desulfurizing agent recovery utilization rate, reduce the cost of desulfurizer and improve treatment effect.
The technical solution of the utility model is that a kind of fume desulfurating absorption tower that possesses aerosol control function, comprise tower body, absorb liquid pool, absorbed layer, washing layer; Tower body adopts multi-tower structure, and absorption liquid pool, absorbed layer, washing layer are placed in tower body from bottom to up successively, and gas approach is arranged at the absorbed layer bottom, and exhanst gas outlet is arranged at the tower body top; Absorb in liquid pool and establish oxidation air distributor pipe, absorbing liquid distributor; Absorbed layer is multi-segment structure, and every section comprises absorbed layer dividing plate, multilayer absorbing liquid distributor and absorption liquid demister, and absorbed layer dividing plate, absorbing liquid distributor and absorption liquid demister set gradually from bottom to up.
The washing layer is void tower structure or packing type, and packing type comprises washing layer dividing plate, water lotion distributor and multilayer water washing lotion demister, and washing layer dividing plate, water lotion distributor and water lotion demister set gradually from bottom to up;
As preferably, in described absorption liquid pool, absorbed layer, washing layer, air and liquid mixer also is set, air and liquid mixer can be filler, grid, spiral board or sieve plate.
As preferably, the absorbing liquid distributor in absorbed layer is no less than three layers.
As preferably, described absorption liquid demister is individual layer absorption liquid demister, and the absorption liquid demister is selected the demister of deflection plate pattern.
As preferably, to process without the dust stratification flue gas, the absorption liquid demister adopts structured packing formula demister
As preferably, described washing layer dividing plate adopts gas cap or valve plate form, and percent opening is not less than 30%.
As preferably, described washing layer be void tower type or packing type, and void tower type washing layer adopts a pipe distributor, and packing type washing layer adopts a groove type distributor, and spraying coverage rate should be greater than 120%.
As preferably, the water lotion demister is the deflection plate pattern, arranges two to three layers.
As preferably, when selecting packing type washing layer, washing layer water-locator adopts the slot type water-locator; When selecting void tower type washing layer, washing layer water-locator adopts the tubular type water-locator.
Of the present utility model possess beneficial effect and be really, by arrange washing layer, absorbed layer and absorption liquid pool possess effect reduction the aerosol in the desulfurization fume, meet the requirement of the discharge standards such as aerosol, flue dust, possess effect ground and improved the impact of the subsidiary product of desulphurization plant on surrounding enviroment, improve the recovery utilization rate of desulfurizing agent, thereby improved the economy of operation.
Description of drawings
Fig. 1 is structural representation of the present utility model
The specific embodiment
As shown in Figure 1, a kind of fume desulfurating absorption tower that possesses aerosol control function of the present utility model, comprise tower body 1, absorption liquid pool 2, absorbed layer 8, washing layer 11; Tower body 1 adopts multi-tower structure, absorbs liquid pool 2, absorbed layer 8, washing layer 11 and is placed in successively from bottom to up in tower body 1, and gas approach 4 is arranged at absorbed layer 8 bottoms, and exhanst gas outlet 6 is arranged at tower body 1 top; Absorb liquid pool 2 bottoms and establish oxidation air distributor pipe 7, absorbing liquid distributor 14; Absorbed layer is the multisectional multilayer structure, comprises absorbed layer dividing plate 3, absorbing liquid distributor 9 and absorption liquid demister 5, and absorbed layer dividing plate 3, absorbing liquid distributor 9 and absorption liquid demister 2 set gradually from bottom to up; Washing layer 11 is the void tower structure, comprises washing layer dividing plate 10, water lotion distributor 12 and water lotion demister 13, and washing layer dividing plate 10, water lotion distributor 12 and water lotion demister 13 set gradually from bottom to up;
Tower body 1 is generally column type, also can adopt other shapes such as rectangle, and flue gas is by part empty tower gas velocity 2-4.5m/s, and in tower body 1, each section diameter can be different.While adopting multi-tower structure, tower body 1 each functional areas can be divided and are arranged.Use material to need to adapt to the abrasion and corrosion of absorption liquid, generally adopt carbon steel lining vinyl ester resin glass flake or carbon steel line with rubber.
Absorbing liquid pool 2 is oxidation ponds of absorption liquid, and its solution time of staying is not less than 20min, in establish oxidation air distributor pipe 7, absorbing liquid distributor 14, also gas-liquid distributor can be set, the general height of solution 5-15 rice.Internals adopt FRP and alloy steel material.
Absorbed layer 8 is the core of absorption tower desulfurization, is provided with absorbing liquid distributor 9 and absorption liquid demister 5, also can be provided with air and liquid mixer.Absorbing liquid distributor 9 generally is no less than 3 layers, and gas residence time is not less than 2s, empty tower gas velocity 2-4.5m/s, and fiberglass, steel lining glue or the steel alloy of the use abrasion and corrosion of anti-the absorption liquid, absorbed layer 8 liquid-gas ratios are not less than 1L/m
3The general individual layer absorption liquid demister 5 that adopts of absorption liquid demister 5, often select the deflection plate pattern, without the structured packing of also can adopting that dust stratification is possible, makes demister, and general the employing strengthens PP material or FRP, and overcurrent part empty tower gas velocity is generally 3-4.5m/s.
Washing layer 11 is major parts of washing gas-liquid contact, and washing layer 11 can be the void tower structure of certain space, also gas-liquid distributor can be set.Gas-liquid distributor is set more is conducive to washing, empty tower gas velocity 2-4.5m/s.The liquid-gas ratio of washing layer 11 is not less than 0.1L/m
310 effects of washing layer dividing plate are to be uniformly distributed flue gas and to collect water lotion, can adopt gas cap or valve plate, adopt FRP or alloy steel material, and general percent opening is not less than 30%; Washing layer water-locator 12 is the equally distributed key structures of water lotion, the general tubular type water-locator that adopts of void tower type washing layer, and the general slot type water-locator that adopts of packing type washing layer, adopt FRP or strengthen the PP material, and the spray coverage rate of tubular type spray water distribution is greater than 120%.Washing demister 13 is selected the deflection plate pattern, and layer 2-3 is set, and as flue gas, without dust stratification, can adopt structured packing, adopts FRP or strengthens PP, the general empty tower gas velocity 3-4.5m/s of overcurrent part.
Embodiment 1: be used for the absorption tower of the ammonia process of desulfurization of 2 * 410t/h boiler smoke, its smoke treatment amount is 1000000m
3/ h, SO in desulfurization import flue gas
2Content is 4000mg/Nm
3, ash content 50mg/Nm
3Tower body 1 is carbon steel lining glass flake material, and high 28m, absorb liquid pool 2 diameter 11m, high 6m, and diameter 11m, arrange the grid packing of one deck FRP material, and bottom arranges the tubular type oxidation air distributor 7 of FRP material, absorbed layer 8 diameter 13m.Absorbed layer 8 is the FRP material, and the absorbing liquid distributor 9 of three layers of pipe distributor band nozzle is set, interlamellar spacing 2.5m, and each laminar flow amount is 1500m
3/ h, total flow 4500m
3/ h.Absorption liquid demister 5 strengthens the dull and stereotyped deflection plate pattern of PP material for one deck, height 300mm.Washing layer FRP material, washing layer dividing plate 10 is circle gas cap form, diameter 13m, total percent opening 41%.Washing layer 11 is the void tower structure, adopts and strengthens PP material, diameter 13m.Washing layer spray flux 500m
3/ h.Washing layer water-locator adopts the tubular structure of FRP material, arranges and is the shark's fin shape, and 32 shower nozzles are set, spray coverage rate 150%.The washing demister adopts 2 layers of ridge type deflection plate pattern that strengthen the PP material, diameter 13m, height overall 2m.
After flue gas was processed by a kind of fume desulfurating absorption tower that possesses aerosol control function, the tail gas of discharging drew data by detection:
In clean flue gas, water smoke drips content 59mg/m
3
Total aerosol (dirt) content 8.2mg/Nm
3
Plume length 120m left and right;
The total ammonia recovery 99% of desulfurizer.
Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.In the present embodiment not clear and definite each part all available prior art realized.
Claims (9)
1. a fume desulfurating absorption tower that possesses aerosol control function, is characterized in that: comprise tower body (1), absorption liquid pool (2), absorbed layer (8), washing layer (11); Described tower body (1) adopts multi-tower structure, absorption liquid pool (2), absorbed layer (8), washing layer (11) are placed in tower body (1) from bottom to up successively, gas approach (4) is arranged at absorbed layer (8) bottom, and exhanst gas outlet (6) is arranged at tower body (1) top;
Establish oxidation air distributor pipe (7), absorbing liquid distributor (14) in described absorption liquid pool (2);
Described absorbed layer (8) is multi-segment structure, every section comprises absorbed layer dividing plate (3), multilayer absorbing liquid distributor (9) and absorption liquid demister (5), and absorbed layer dividing plate (3), absorbing liquid distributor (8) and absorption liquid demister (5) set gradually from bottom to up.
2. according to claim 1 a kind ofly possess aerosol and control the fume desulfurating absorption tower of function, it is characterized in that: described washing layer (11) is void tower structure or packing type structure, the packing type structure comprises washing layer dividing plate (10), water lotion distributor (12) and multilayer water washing lotion demister (13), and washing layer dividing plate (10), water lotion distributor (12) and water lotion demister (13) set gradually from bottom to up.
3. according to claim 2 a kind ofly possess aerosol and control the fume desulfurating absorption tower of function, it is characterized in that: in described absorption liquid pool (2), absorbed layer (8), washing layer (11), air and liquid mixer also is set, air and liquid mixer can be filler, grid, spiral board or sieve plate.
4. according to claim 1 a kind ofly possess aerosol and control the fume desulfurating absorption tower of function, and it is characterized in that: the absorbing liquid distributor (8) in absorbed layer (8) is no less than three layers.
5. according to claim 1 a kind ofly possess aerosol and control the fume desulfurating absorption tower of function, and it is characterized in that: described absorption liquid demister (5) is individual layer absorption liquid demister (5), and absorption liquid demister (5) is selected the demister of deflection plate pattern.
6. a kind of fume desulfurating absorption tower that possesses aerosol control function according to claim 1, is characterized in that: absorption liquid demister employing structured packing formula demister.
7. according to claim 2 a kind ofly possess aerosol and control the fume desulfurating absorption tower of function, and it is characterized in that: a described washing layer dividing plate (10) employing gas cap or valve plate form, percent opening is not less than 30%.
8. according to claim 2 a kind ofly possess aerosol and control the fume desulfurating absorption tower of function, it is characterized in that: described washing layer (11) is during for the void tower type structure, and the washing layer of void tower type structure adopts pipe distributor, sprays coverage rate greater than 120%.
9. according to claim 2 a kind ofly possess aerosol and control the fume desulfurating absorption tower of function, and it is characterized in that: water lotion demister (13) is the deflection plate pattern, arranges two to three layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320354373XU CN203291675U (en) | 2013-06-19 | 2013-06-19 | Flue gas desulfurization absorber with aerosol controlling function |
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|---|---|---|---|
| CN201320354373XU CN203291675U (en) | 2013-06-19 | 2013-06-19 | Flue gas desulfurization absorber with aerosol controlling function |
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| CN203291675U true CN203291675U (en) | 2013-11-20 |
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| CN201320354373XU Expired - Lifetime CN203291675U (en) | 2013-06-19 | 2013-06-19 | Flue gas desulfurization absorber with aerosol controlling function |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10016721B1 (en) | 2017-05-25 | 2018-07-10 | Jiangnan Environmental Protection Group Inc. | Ammonia-based desufurization process and apparatus |
| CN108479371A (en) * | 2018-06-14 | 2018-09-04 | 江苏华本环境科技有限公司 | A kind of desulfurizer improving desulfuration efficiency |
| US10092877B1 (en) | 2017-05-25 | 2018-10-09 | Jiangnan Environmental Protection Group Inc. | Dust removal and desulfurization of FCC exhaust gas |
| US10099170B1 (en) | 2017-06-14 | 2018-10-16 | Jiangnan Environmental Protection Group Inc. | Ammonia-adding system for ammonia-based desulfurization device |
| US10112145B1 (en) | 2017-09-07 | 2018-10-30 | Jiangnan Environmental Protection Group Inc. | Method for controlling aerosol production during absorption in ammonia desulfurization |
| US20190001267A1 (en) | 2017-07-03 | 2019-01-03 | Jiangnan Environmental Protection Group Inc. | Desulfurization absorption tower |
| US10207220B2 (en) | 2017-03-15 | 2019-02-19 | Jiangnan Environmental Protection Group Inc. | Method and apparatus for removing sulfur oxides from gas |
| US10953365B2 (en) | 2018-07-20 | 2021-03-23 | Jiangnan Environmental Protection Group Inc. | Acid gas treatment |
| US11027234B2 (en) | 2018-04-13 | 2021-06-08 | Jiangnan Environmental Protection Group Inc. | Oxidization of ammonia desulfurization solution |
| US11224838B2 (en) | 2019-12-26 | 2022-01-18 | Jiangnan Environmental Protection Group Inc. | Controlling aerosol production during absorption in ammonia-based desulfurization |
-
2013
- 2013-06-19 CN CN201320354373XU patent/CN203291675U/en not_active Expired - Lifetime
Cited By (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10207220B2 (en) | 2017-03-15 | 2019-02-19 | Jiangnan Environmental Protection Group Inc. | Method and apparatus for removing sulfur oxides from gas |
| US10675584B2 (en) | 2017-03-15 | 2020-06-09 | Jiangnan Environmental Protection Group Inc. | Method and apparatus for removing sulfur oxides from gas |
| US10413864B2 (en) | 2017-03-15 | 2019-09-17 | Jiangnan Environmental Protection Group Inc. | Method and apparatus for removing sulfur oxides from gas |
| US10406477B2 (en) | 2017-03-15 | 2019-09-10 | Jiangnan Environmental Protection Group Inc. | Method and apparatus for removing sulfur oxides from gas |
| US10213739B2 (en) | 2017-05-25 | 2019-02-26 | Jiangnan Environmental Protection Group Inc. | Dust removal and desulfurization of FCC exhaust gas |
| US10471383B2 (en) | 2017-05-25 | 2019-11-12 | Jiangnan Environmental Protection Group Inc. | Dust removal and desulfurization of FCC exhaust gas |
| US10016721B1 (en) | 2017-05-25 | 2018-07-10 | Jiangnan Environmental Protection Group Inc. | Ammonia-based desufurization process and apparatus |
| US10343110B2 (en) | 2017-05-25 | 2019-07-09 | Jiangnan Environmental Protection Group Inc. | Dust removal and desulfurization of FCC exhaust gas |
| US10561982B2 (en) | 2017-05-25 | 2020-02-18 | Jiangnan Environmental Protection Group Inc. | Ammonia-based desulfurization process and apparatus |
| US10399033B2 (en) | 2017-05-25 | 2019-09-03 | Jiangnan Environmental Protection Group Inc. | Ammonia-based desulfurization process and apparatus |
| US10406478B2 (en) | 2017-05-25 | 2019-09-10 | Jiangnan Environmental Protection Group Inc. | Ammonia-based desulfurization process and apparatus |
| US10413865B2 (en) | 2017-05-25 | 2019-09-17 | Jiangnan Enviromental Protection Group Inc. | Ammonia-based desulfurization process and apparatus |
| US10092877B1 (en) | 2017-05-25 | 2018-10-09 | Jiangnan Environmental Protection Group Inc. | Dust removal and desulfurization of FCC exhaust gas |
| US10589212B2 (en) | 2017-06-14 | 2020-03-17 | Jiangnan Environmental Protection Group Inc. | Ammonia-adding system for ammonia-based desulfurization device |
| US10583386B2 (en) | 2017-06-14 | 2020-03-10 | Jiangnan Environmental Protection Group Inc. | Ammonia-adding system for ammonia-based desulfurization device |
| US10159929B1 (en) | 2017-06-14 | 2018-12-25 | Jiangnan Environmental Protection Group Inc. | Ammonia-adding system for ammonia-based desulfurization device |
| US10099170B1 (en) | 2017-06-14 | 2018-10-16 | Jiangnan Environmental Protection Group Inc. | Ammonia-adding system for ammonia-based desulfurization device |
| US10561984B2 (en) | 2017-07-03 | 2020-02-18 | Jiangnan Environmental Protection Group Inc. | Desulfurization absorption tower |
| US10427097B2 (en) | 2017-07-03 | 2019-10-01 | Jiangnan Environmental Protection Group Inc. | Desulfurization absorption tower |
| US10618001B2 (en) | 2017-07-03 | 2020-04-14 | Jiangnan Environmental Protection Group Inc. | Desulfurization absorption tower |
| US10421040B2 (en) | 2017-07-03 | 2019-09-24 | Jiangnan Environmental Protection Group Inc. | Desulfurization absorption tower |
| US10556205B2 (en) | 2017-07-03 | 2020-02-11 | Jiangnan Environmental Protection Group Inc. | Desulfurization absorption tower |
| US20190001267A1 (en) | 2017-07-03 | 2019-01-03 | Jiangnan Environmental Protection Group Inc. | Desulfurization absorption tower |
| US10112145B1 (en) | 2017-09-07 | 2018-10-30 | Jiangnan Environmental Protection Group Inc. | Method for controlling aerosol production during absorption in ammonia desulfurization |
| US10357741B2 (en) | 2017-09-07 | 2019-07-23 | Jiangnan Environmental Protection Group Inc. | Method for controlling aerosol production during absorption in ammonia desulfurization |
| US10369517B2 (en) | 2017-09-07 | 2019-08-06 | Jiangnan Environmental Protection Group Inc. | Method for controlling aerosol production during absorption in ammonia desulfurization |
| US10449488B2 (en) | 2017-09-07 | 2019-10-22 | Jiangnan Environmental Protection Group Inc. | Method for controlling aerosol production during absorption in ammonia desulfurization |
| US11027234B2 (en) | 2018-04-13 | 2021-06-08 | Jiangnan Environmental Protection Group Inc. | Oxidization of ammonia desulfurization solution |
| CN108479371A (en) * | 2018-06-14 | 2018-09-04 | 江苏华本环境科技有限公司 | A kind of desulfurizer improving desulfuration efficiency |
| US10953365B2 (en) | 2018-07-20 | 2021-03-23 | Jiangnan Environmental Protection Group Inc. | Acid gas treatment |
| US11529584B2 (en) | 2018-07-20 | 2022-12-20 | Jiangnan Environmental Protection Group Inc. | Acid gas treatment |
| US11224838B2 (en) | 2019-12-26 | 2022-01-18 | Jiangnan Environmental Protection Group Inc. | Controlling aerosol production during absorption in ammonia-based desulfurization |
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| ASS | Succession or assignment of patent right |
Owner name: NANJING XIN SHIJI JIANGNAN ENVIRONMENT PROTECTION Free format text: FORMER OWNER: JIANGSU NEW CENTURY JIANGNAN ENVIRONMENTAL PROTECTION CO., LTD. Effective date: 20150429 |
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Free format text: CORRECT: ADDRESS; FROM: 211100 NANJING, JIANGSU PROVINCE TO: 211300 NANJING, JIANGSU PROVINCE |
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Effective date of registration: 20150429 Address after: Shuanghu road Gaochun Economic Development Zone in Nanjing City, Jiangsu Province, No. 65 211300 Patentee after: NANJING NEW CENTURY JIANGNAN ENVIRONMENTAL PROTECTION CO.,LTD. Address before: Tianyuan Jiangning District of Nanjing City, Jiangsu province 211100 No. 108 Easthigh International Building Patentee before: JIANGSU NEW CENTURY JIANGNAN ENVIRONMENTAL PROTECTION Co.,Ltd. |
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