CN201208544Y - Desulfuration absorbing tower with dual-tower structure - Google Patents
Desulfuration absorbing tower with dual-tower structure Download PDFInfo
- Publication number
- CN201208544Y CN201208544Y CNU2008201153663U CN200820115366U CN201208544Y CN 201208544 Y CN201208544 Y CN 201208544Y CN U2008201153663 U CNU2008201153663 U CN U2008201153663U CN 200820115366 U CN200820115366 U CN 200820115366U CN 201208544 Y CN201208544 Y CN 201208544Y
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- China
- Prior art keywords
- tower
- absorption
- double
- spraying layer
- absorption tower
- 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
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 31
- 238000010521 absorption reaction Methods 0.000 claims abstract description 54
- 230000002745 absorbent Effects 0.000 claims abstract description 16
- 239000002250 absorbent Substances 0.000 claims abstract description 16
- 238000005507 spraying Methods 0.000 claims description 26
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 16
- 239000002002 slurry Substances 0.000 claims description 12
- 239000013505 freshwater Substances 0.000 claims description 10
- 229910021529 ammonia Inorganic materials 0.000 claims description 8
- 238000005276 aerator Methods 0.000 claims description 4
- 238000004176 ammonification Methods 0.000 claims description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims description 2
- 230000023556 desulfurization Effects 0.000 abstract description 7
- 239000007921 spray Substances 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 210000002966 serum Anatomy 0.000 abstract 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 21
- 239000003546 flue gas Substances 0.000 description 21
- 238000005406 washing Methods 0.000 description 8
- 150000003863 ammonium salts Chemical class 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- -1 absorb repeatedly Substances 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000008258 liquid foam Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model relates to a desulfurization absorption tower adopting a double-tower structure, which comprises a prewashing tower, an absorption tower and a communicating flue between the prewashing tower and the absorption tower. A spray layer is arranged at the inlet of the prewashing tower; a prewashing tower circulating pool is positioned at the bottom of the tower; a circulating scrub solution of the prewashing tower circulating pool passes through a prewashing recycle pump and is delivered to the spray layer; an absorbing spray layer is arranged at the upper part of the absorption tower, and an absorption tower circulating pool is positioned at the bottom of the absorption tower and contains serum of an absorbent; the serum in the pool is delivered to the absorbing spray layer at the upper part of the absorption tower through a desulfurization recycle pump. The desulfurization absorption tower adopting the double-tower structure has the advantages of small resistance, low energy consumption, high utilization ratio of the absorbent, flexible operation, convenient maintenance, etc.
Description
Technical field
The utility model relates to a kind of desulfuration absorbing tower of Double-Tower Structure.
Background technology
At present, the fume desulfurating absorption tower in the wet method ammonia type flue gas desulfurizing industry is generally single tower structure, generally Venturi scrubber is set entering on the flue of tower or in tower.Because the environment that the wet method ammonia process of desulfurization absorbs reaction, as factors such as the temperature of the flow velocity of flue gas, resistance, reaction, concentration higher requirement is arranged, can not get effective guarantee as the reaction environment in the tower, then output of the utilization rate of the efficient of desulfurization, absorbent, product etc. will can not get effective raising.
The utility model content
Technical problem to be solved in the utility model provides that a kind of resistance is little, energy consumption is low, the desulfuration absorbing tower of the Double-Tower Structure of absorbent utilization rate height, flexible operation, advantage such as easy to maintenance.
In order to address the above problem, the utility model is taked following technical scheme:
A kind of desulfuration absorbing tower of Double-Tower Structure, comprise the connection flue between prewashing column, absorption tower and two towers, the prewashing column porch is provided with spraying layer, and tower bottom is the prewashing column circulatory pool, and the circulating cleaning solution of described prewashing column circulatory pool is delivered to described spraying layer through the pre-wash circulating pump; Top, described absorption tower is provided with the absorption spraying layer, and the bottom is the absorption tower circulatory pool, and the slurries that contain absorbent are arranged in the circulatory pool of absorption tower, the slurries in the pond is delivered to the absorption spraying layer on top, absorption tower by desulfuration recycle pump.
Described prewashing column links to each other by pipeline with the bottom of absorption tower two towers.
Connection flue between described prewashing column and the absorption tower is downward-sloping in described absorption tower.
Aerator is arranged at the bottom of described prewashing column circulatory pool.
Spraying layer in the described prewashing column is made up of a plurality of nozzles.
Above described absorption spraying layer, be provided with the fresh water (FW) spraying layer.
Above described fresh water (FW) spraying layer, be provided with the two-stage demister.
There is layer 2-3 to absorb spraying layer in the described absorption tower.
Absorption spraying layer in the described absorption tower is made up of a plurality of nozzles.
Described absorbent adopts ammoniacal liquor or liquefied ammonia, in the ammonification of circulating pump suction inlet.
The beneficial effects of the utility model are: the desulfuration absorbing tower of the utility model Double-Tower Structure has that resistance is little, energy consumption is low, absorbent utilization rate height, flexible operation, advantage such as easy to maintenance.
Description of drawings
Fig. 1 is the structural representation of the desulfuration absorbing tower of this practical Double-Tower Structure;
Fig. 2 is the concrete structure figure on the absorption tower of the desulfuration absorbing tower of Double-Tower Structure among the embodiment;
Fig. 3 is the A-A cutaway view among Fig. 2.
The specific embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
With reference to Fig. 1, a kind of desulfuration absorbing tower 2 of Double-Tower Structure comprises the connection flue 3 between prewashing column 1, absorption tower 2 and two towers, and the connection flue 3 between described prewashing column 1 and the absorption tower 2 is downward-sloping in described absorption tower 2.
The inlet of the prewashing column 1 some nozzles 11 that evenly distributed, by the supporting pre-wash circulating pump 12 of prewashing column 1, wash solution in the prewashing column circulatory pool 13 at the bottom of the tower is delivered to each nozzle 11, form spraying layer, flue gas passes through after the spraying layer from top to bottom, reduced the temperature of flue gas on the one hand, for the absorption reaction in the absorption tower, back 2 has been created advantageous conditions, moisture in the solution is taken away by flue gas owing to evaporate on the other hand, make circulation fluid be concentrated, for the reaction product subsequent treatment has been saved a large amount of energy consumptions.In addition, flue gas is through after the spray washing, and the low amounts of dust that contains in the flue gas also will be captured, and has reduced the discharge capacity of device outlet dust.Be provided with aerator in the circulatory pool at 1 end of prewashing column, on the one hand, make that unsettled salt fully is oxidized to stable ammonium salt in the solution, on the other hand, make ammonium salt not at the bottom of tower and tower wall deposition, the concentration of the product back that acquires a certain degree is taken out and is delivered to subsequent treatment workshop section.
Enter absorption tower 2 through the flue gas after the washing cooling by the connection flue 3 between two towers, from bottom to top, the top on absorption tower 2 is provided with 2～3 layers and absorbs spraying layer, be provided with nozzle 21, by absorption tower 2 supporting desulfuration recycle pumps 22 slurries that contain absorbent in the absorption tower circulatory pool 23 at the bottom of the absorption tower are delivered to each nozzle, slurries are through spraying downwards after the nozzle atomization, reasonable Arrangement by nozzle 21, make spray face be evenly distributed and cover interference, guarantee that flue gas fully contacts with the slurries that contain absorbent, reach the effect of abundant washing, absorption.After washing, sulfur in smoke is captured, and slurries are got back at the bottom of the tower, and flue gas continues toward the upper reaches.
The utility model adopts ammonia as absorbent, because the chemical property of absorbent ammonia is more active, escapes with flue gas easily, and ammonia is very easily water-soluble, therefore one deck fresh water (FW) spraying layer is set above the circulated sprinkling layer, is used to catch the absorbent ammonia of escape, guarantee that absorbent makes full use of.
1 section of prewashing column, slurries are through after washing, concentrating, a large amount of moisture can evaporate by flue gas to be taken away, therefore above spraying layer, be provided with the two-stage demister, in order to remove liquid foam and the bigger drop of volume that carries in the flue gas after desulfurization, enter smoke stack emission after the moisture in the assurance flue gas is up to standard.
In addition, the bottom of two towers links to each other by pipeline, and the ammonium salts that generate in the assurance absorption tower 2 can be delivered to and carry out oxidation, taking-up in the prewashing column 1, makes that also the liquid level in the tower keeps balance.
With reference to Fig. 2-Fig. 3, absorption tower 2 internal layers 24 are the plastics anticorrosive board of macromolecular material, and outer 25 are mixed and processed with armored concrete, and are solid, antiseptic property good, and certainly, described prewashing column also can be this kind material.
The desulfuration absorbing tower 2 of the utility model Double-Tower Structure, it is arranged at the boiler induced-draft fan outlet and enters between the flue of chimney, and flue gas is drawn by newly-increased steel flue gas duct, be introduced into prewashing column 1, enter absorption tower 2 after the washing again, flue gas enters smoke stack emission again through after washing.
Concrete steps of the present utility model are as follows:
1), cooling, concentrate, dedusting, oxidation: the desulfuration absorbing tower 2 that the utility model Double-Tower Structure is installed between boiler dust remover outlet and chimney, in prewashing column 1, the washing of flue gas process, the effect that reach cooling, concentrates, the part dust is captured simultaneously; Slurries at the bottom of the tower in the circulatory pool with oxygen generation oxidation reaction, play the effect of oxidation through the aerator aeration, generate stable ammonium salt, are taken out to subsequent treatment workshop section;
2), circulation absorption, demist: after flue gas enters absorption tower 2, react with slurries, absorbent in the tower, SO2 is removed, the ammonium salt that generates is got back to circulatory pool at the bottom of the tower with slurries, absorb repeatedly, flue gas after the desulfurization is by demister, and the drop that volume is bigger is captured down and turns back in the circulatory pool at the bottom of the tower; Clean flue gas enters smoke stack emission after by demister.
The above only is a preferred implementation of the present utility model; 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.
Claims (10)
1, a kind of desulfuration absorbing tower of Double-Tower Structure, it is characterized in that, comprise the connection flue between prewashing column, absorption tower and two towers, the prewashing column porch is provided with spraying layer, tower bottom is the prewashing column circulatory pool, and the circulating cleaning solution of described prewashing column circulatory pool is delivered to described spraying layer through the pre-wash circulating pump; Top, described absorption tower is provided with the absorption spraying layer, and the bottom is the absorption tower circulatory pool, and the slurries that contain absorbent are arranged in the circulatory pool of absorption tower, the slurries in the pond is delivered to the absorption spraying layer on top, absorption tower by desulfuration recycle pump.
2, the desulfuration absorbing tower of Double-Tower Structure according to claim 1 is characterized in that, described prewashing column links to each other by pipeline with the bottom of absorption tower two towers.
3, the desulfuration absorbing tower of Double-Tower Structure according to claim 1 is characterized in that, the connection flue between described prewashing column and the absorption tower is downward-sloping in described absorption tower.
4, the desulfuration absorbing tower of Double-Tower Structure according to claim 1 is characterized in that, aerator is arranged at the bottom of described prewashing column circulatory pool.
5, the desulfuration absorbing tower of Double-Tower Structure according to claim 1 is characterized in that, the spraying layer in the described prewashing column is made up of a plurality of nozzles.
6, the desulfuration absorbing tower of Double-Tower Structure according to claim 1 is characterized in that, is provided with the fresh water (FW) spraying layer above described absorption spraying layer.
7, the desulfuration absorbing tower of Double-Tower Structure according to claim 6 is characterized in that, is provided with the two-stage demister above described fresh water (FW) spraying layer.
8, the desulfuration absorbing tower of Double-Tower Structure according to claim 1 is characterized in that, has layer 2-3 to absorb spraying layer in the described absorption tower.
According to the desulfuration absorbing tower of claim 1 or 8 described Double-Tower Structure, it is characterized in that 9, the absorption spraying layer in the described absorption tower is made up of a plurality of nozzles.
10, the desulfuration absorbing tower of Double-Tower Structure according to claim 1 is characterized in that, described absorbent adopts ammoniacal liquor or liquefied ammonia, in the ammonification of circulating pump suction inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201153663U CN201208544Y (en) | 2008-06-13 | 2008-06-13 | Desulfuration absorbing tower with dual-tower structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201153663U CN201208544Y (en) | 2008-06-13 | 2008-06-13 | Desulfuration absorbing tower with dual-tower structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201208544Y true CN201208544Y (en) | 2009-03-18 |
Family
ID=40479269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201153663U Expired - Fee Related CN201208544Y (en) | 2008-06-13 | 2008-06-13 | Desulfuration absorbing tower with dual-tower structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201208544Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101934192A (en) * | 2010-09-16 | 2011-01-05 | 江苏和亿昌环保工程科技有限公司 | Double-tower ammonia-method desulfurization process |
| CN102151475A (en) * | 2011-03-23 | 2011-08-17 | 北京国电龙源环保工程有限公司 | Two-tower ammonia method desulfurization device and method |
| CN101708412B (en) * | 2009-11-16 | 2011-12-21 | 浙江大学 | Twin tower type recovering sulfur resource ammonia desulfuration equipment and method |
| CN102423613A (en) * | 2011-08-23 | 2012-04-25 | 武汉兴能环保技术有限公司 | Ammonia desulphurization method for effectively removing chlorine, fluorine ions and heavy metal ions |
| CN102527210A (en) * | 2010-12-30 | 2012-07-04 | 中钢集团工程设计研究院有限公司 | Sintering flue gas ammonia desulfurization system and process |
| CN102921287A (en) * | 2012-10-30 | 2013-02-13 | 北京国电龙源环保工程有限公司 | Double-tower double-circulation limestone wet method desulfurization device and method |
| CN103721500A (en) * | 2013-12-19 | 2014-04-16 | 广德淑林机制炭厂 | Powder soot recycling method for processing and producing bamboo charcoal |
| CN103831006A (en) * | 2014-01-18 | 2014-06-04 | 西安西热锅炉环保工程有限公司 | Novel downstream tower-countercurrent tower series-connected flue gas desulphurization apparatus |
| CN107601529A (en) * | 2017-10-31 | 2018-01-19 | 东方电气集团东方锅炉股份有限公司 | A kind of efficient liquefied ammonia of safety and environmental protection prepares the device of ammoniacal liquor |
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2008
- 2008-06-13 CN CNU2008201153663U patent/CN201208544Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101708412B (en) * | 2009-11-16 | 2011-12-21 | 浙江大学 | Twin tower type recovering sulfur resource ammonia desulfuration equipment and method |
| CN101934192A (en) * | 2010-09-16 | 2011-01-05 | 江苏和亿昌环保工程科技有限公司 | Double-tower ammonia-method desulfurization process |
| CN102527210B (en) * | 2010-12-30 | 2015-01-14 | 中钢集团工程设计研究院有限公司 | Sintering flue gas ammonia desulfurization system and process |
| CN102527210A (en) * | 2010-12-30 | 2012-07-04 | 中钢集团工程设计研究院有限公司 | Sintering flue gas ammonia desulfurization system and process |
| CN102151475A (en) * | 2011-03-23 | 2011-08-17 | 北京国电龙源环保工程有限公司 | Two-tower ammonia method desulfurization device and method |
| CN102423613A (en) * | 2011-08-23 | 2012-04-25 | 武汉兴能环保技术有限公司 | Ammonia desulphurization method for effectively removing chlorine, fluorine ions and heavy metal ions |
| CN102423613B (en) * | 2011-08-23 | 2013-10-02 | 武汉兴能环保技术有限公司 | Ammonia desulfurization method for effectively removing chlorine and fluorine ions and heavy metal ions |
| CN102921287A (en) * | 2012-10-30 | 2013-02-13 | 北京国电龙源环保工程有限公司 | Double-tower double-circulation limestone wet method desulfurization device and method |
| CN103721500A (en) * | 2013-12-19 | 2014-04-16 | 广德淑林机制炭厂 | Powder soot recycling method for processing and producing bamboo charcoal |
| CN103721500B (en) * | 2013-12-19 | 2016-01-13 | 广德淑林机制炭厂 | The Powder soot recoverying and utilizing method that a kind of bamboo charcoal processing produces |
| CN103831006A (en) * | 2014-01-18 | 2014-06-04 | 西安西热锅炉环保工程有限公司 | Novel downstream tower-countercurrent tower series-connected flue gas desulphurization apparatus |
| CN107601529A (en) * | 2017-10-31 | 2018-01-19 | 东方电气集团东方锅炉股份有限公司 | A kind of efficient liquefied ammonia of safety and environmental protection prepares the device of ammoniacal liquor |
| CN107601529B (en) * | 2017-10-31 | 2024-01-05 | 东方电气集团东方锅炉股份有限公司 | Device of high-efficient liquid ammonia preparation aqueous ammonia of safety environmental protection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU HEYICHANG ENVIRONMENT PROTECTION SCIENCE A Free format text: FORMER OWNER: JIANGSU HEYICHANG ENVIRONMENTAL PROTECTION CO., LTD. Effective date: 20100705 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 210008 16TH FLOOR, BUILDING B, JUNLINGUOJI,5#, GUANGZHOU ROAD, NANJING CITY, JIANGSU PROVINCE TO: 210008 16TH FLOOR, BUILDING B, JUNLINGUOJI, NO.5, GUANGZHOU ROAD, NANJING CITY, JIANGSU PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20100705 Address after: 210008 Guangzhou road Jiangsu city Nanjing Province Dragon International B No. 5 Building 16 floor Patentee after: Jiangsu Heyichang Environmental Protection Engineering Technology Co., Ltd. Address before: 210008 Guangzhou Road, Jiangsu city of Nanjing province No. 5 Dragon International B building 16 floor Patentee before: Jiangsu Heyichang Environmental Protection Engineering & Technology Co., Ltd. |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090318 Termination date: 20120613 |