CN102225304B - Twin exhaust gas purifying tower - Google Patents
Twin exhaust gas purifying tower Download PDFInfo
- Publication number
- CN102225304B CN102225304B CN 201110104191 CN201110104191A CN102225304B CN 102225304 B CN102225304 B CN 102225304B CN 201110104191 CN201110104191 CN 201110104191 CN 201110104191 A CN201110104191 A CN 201110104191A CN 102225304 B CN102225304 B CN 102225304B
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- China
- Prior art keywords
- tower
- liquid
- exhaust gas
- circulatory pool
- circulating
- 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
- 239000007788 liquid Substances 0.000 claims abstract description 55
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 9
- 230000003647 oxidation Effects 0.000 claims abstract description 8
- 239000007789 gas Substances 0.000 claims description 29
- 125000006850 spacer group Chemical group 0.000 claims description 19
- 239000002912 waste gas Substances 0.000 claims description 8
- 230000018044 dehydration Effects 0.000 claims description 5
- 238000006297 dehydration reaction Methods 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 abstract description 7
- 239000007787 solid Substances 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 description 15
- 238000005406 washing Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000001556 precipitation Methods 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 3
- 235000011941 Tilia x europaea Nutrition 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 239000004571 lime Substances 0.000 description 3
- 238000010926 purge Methods 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000009719 regenerative response Effects 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 239000011800 void material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
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- Treating Waste Gases (AREA)
Abstract
The invention discloses a twin exhaust gas purifying tower, which comprises towers I and II and tower circulating pools I and II, wherein the towers I and II are paratactic and serially connected with each other; the circulating pools of the tower I and II are corresponding to the lower parts of the towers I and II; a liquid gathering hopper, a liquid-guiding ring, a nozzle, a spiral flow plate and a top liquid baffle ring are arranged in the tower I from bottom to top; an exhaust gas inlet and an air oxidation device are arranged on the tower I circulating pool; a tower II liquid distributing pipe, a conical cup atomizing layer and a multi-ring whirlwind demister are arranged on the tower II from top to bottom; a clean gas outlet is arranged on the tower II; spacing rings are arranged onthe circulating pools on the lower parts of the towers I and II; circulating pumps are arranged in the circulating pools of the tower I and II; lifting pumps and dewatering pumps are arranged at bottoms of the towers I and II; and a medium conveying pipe is arranged on the upper part of the tower II. By using the twin exhaust gas purifying tower, a gas/liquid mass transfer area is increased, a gas/liquid contact area is updated by repeatedly cutting, the purifying efficiency is high, the consumption of circulating kinetic energy is reduced, the flow speed of idle tower is increased, the reaction of absorbing medium is more complete, the utilization ratio is higher, solid content in cleaning solution in the towers is reduced, the abrasions of the circulating pumps and the nozzle are reduced, the service life is prolonged, and the maintenance is more convenient. The twin exhaust gas purifying tower is mainly used for cleaning, absorbing and purifying the exhaust gas.
Description
Affiliated technical field
The present invention relates to a kind of flue gas desulfurization cleaning equipment, specifically refer to utilize lime to make the medium washing absorption and contain SO
2Twin exhaust gas purifying tower Deng acid waste gas.
Background technology
Flue gas washing absorption cleaning equipment be the most frequently used also be the most effective SO
2Emission abatement device Deng acid waste gas.Technology commonly used has spray column, packed tower, liquid column tower, plate column, and the double etc. of advanced U.S. NOELL-KRC process using.Also announced some special flue gas washing absorption cleaning equipment on Chinese patent, these equipment are single tower structure, and identical mass transfer time tower body is higher, and import and export has one at the tower item, have increased difficulty and cost to installation and maintenance; Absorption pattern mostly is counter movement, is subjected to flooding limit constraint void tower flow velocity relatively low, is generally less than 3 meter per seconds, and respective absorption tower diameter is excessive; The major cycle pond is only corresponding to be equipped with one, not only does the regenerative response pond but also do the oxidation reaction pond, has increased operation and control difficulty, has reduced the utilization rate of absorbing medium, and the circulation fluid solids content is seriously higher simultaneously, the wearing and tearing that increased pump and nozzle; Particularly the amount of liquor of circulation employing is larger, and liquid-gas ratio mostly is 10-25L/m
3Lift is higher, has caused circulation cleaning kinetic energy exorbitant expenditure, and total operating cost is obviously bigger than normal.
Summary of the invention
The object of the present invention is to provide a kind ofly can increase largely gas, liquid mass transfer area, more times is cut apart and upgrades gas, liquid contact-making surface, reaches higher removal efficiency in the time at identical mass transfer; Utilize less amount of liquor to reach higher removal effect, reduce greatly cycle kinetic energy consumption; The mass transfer mode is not retrained by flooding limit, and the void tower flow velocity is improved; Make the absorbing medium reaction more complete, utilization rate is higher; The outer liquid of circulatory pool spacer ring gets precipitation to a certain extent, and reduction pumps into the solids content of cleaning solution in the tower and the wearing and tearing of circulating pump and nozzle, increases the service life; Safeguard easier Shuangzi absorption tower.
For achieving the above object, twin exhaust gas purifying tower of the present invention, include series connection I tower, II tower arranged side by side I circulatory pool, II circulatory pool and the I tower corresponding with the bottom, the tube connector that the II top of tower is ganged up two towers, the remittance liquid bucket that in the I tower, from bottom to top arranges respectively, the drain ring more than two-layer, the nozzle more than two-layer, spiral board and top flinger ring more than two-layer, the exhaust gas inlet that in the I circulatory pool, arranges, I tower spacer ring, air oxidation device; At the II tower liquid distributor that the II tower from top to bottom arranges respectively, two-layer above cone cup atomizing layer and encircle cyclone demister more; The pure qi (oxygen) outlet that in the II circulatory pool, arranges, II tower spacer ring; At the I of main body outer setting circulating pump, II circulating pump, elevator pump and dehydration pump, and the pipeline that is connected and valve.
Twin exhaust gas purifying tower of the present invention has advantages of:
1, the present invention adopts series connection Shuangzi pyramidal structure arranged side by side single tower structure commonly used, and under the time, the tower body height can reduce greatly at identical mass transfer, and the import and export position is located at the tower body bottom, makes installation and maintenance easier.
2, three layers of liquid curtain adopting at the I tower of the present invention, three layers of fluid column, three layers revolve loose liquid and consist of the staggered mass transfer interface of gas-liquid, adopt again three layers of cone cup to spray at the II tower and breathe heavily stream formation atomizing mass transfer interface, make form in the complete equipment tower have multimode, multi-level gas-liquid mass transfer mode, thereby guaranteed at lower washing absorption liquid measure (liquid-gas ratio 2-4L/m
3) situation under; Obtain higher gas-liquid mass transfer efficient and assimilation effect.Because the reduction of washing absorption liquid measure makes the more single tower structure of circulation power and power consumption (liquid-gas ratio 10-25L/m
3) obvious reduction arranged.
3, the present invention is because each concrete mass transport process is gas-liquid following current high speed mass transfer, when reducing drag losses, eliminated the constraint of flooding limit, make the void tower flow velocity can bring up to 4-6m/ second, the diameter of more similar tower is less, reduced manufacturing cost, because the gas-liquid same-directional high-speed washes away, the interior fouling of tower is obviously reduced, block resistance obviously improves.
4, the present invention adopts version and the staggered method of operation that absorbs of concentration in Shuangzi shape tower two major cycle ponds of corresponding configuration at the bottom of tower, makes absorbing medium obtain twice utilization, reacts more complete, and utilization rate is higher.
5, the present invention adopts the interior liquid mode of the dirty potentiometers potential impact of circulation fluid agitation cycle pond spacer ring in the tower, has saved the configuration of agitating device and the consumption of stirring electric energy.
6, the present invention adopts spacer ring is set in circulatory pool, makes the interior liquid of spacer ring of fraction obtain stronger stirring, and the outer liquid of most spacer ring obtains the appropriateness precipitation, and the liquid solid content of circulation extraction reduces greatly, effectively alleviates the wearing and tearing of pump and nozzle.
Description of drawings
Accompanying drawing is the structural representation of twin exhaust gas purifying tower of the present invention.
Shown in the figure: 1, dehydration pump; 2, oxidation unit; 3, I tower circulatory pool; 4, I tower spacer ring; 5, I tower circulating pump; 6, exhaust gas inlet; 7, remittance liquid bucket; 8, drain ring; 9, I tower nozzle; 10, spiral board; 11, flinger ring; 12, I tower; 13, tube connector; 14, II tower liquid distributor; 15, II tower; 16, cone cup atomizing layer; 17, encircle cyclone demister more; 18, II tower spacer ring; 19, II circulatory pool; 20, elevator pump; 21, pure qi (oxygen) outlet; 22, II tower circulating pump, 23, the medium transport pipe.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing, and the present embodiment is not construed as limiting the invention.
The structure of twin exhaust gas purifying tower of the present invention is:
Twin exhaust gas purifying tower as shown in the figure, include I tower 12 arranged side by side, the I tower circulatory pool 3 that II tower 15 is corresponding with the bottom, the tube connector 13 that II tower circulatory pool 19 and top two towers are ganged up, the remittance liquid bucket 7 that in I tower 12, from bottom to top arranges respectively, three layers of drain ring 8, three layers of nozzle 9, three layers of spiral board 10, and top shelves pendular ring 11, exhaust gas inlet 6 in 3 settings of I tower circulatory pool, waste gas enters the I tower by exhaust gas inlet 6, and at the I tower circulatory pool 3 interior I tower spacer rings 4 that arrange, air enters the I tower by oxidation unit 2, the II tower liquid distributor 14 that in the II tower, from top to bottom arranges respectively, three layers of cone cup atomizing layer 16, and encircle cyclone demister 17 more, at II tower circulatory pool 19 interior II towers spacer ring 18 is set, the top of II tower circulatory pool 19 arranges purge outlet 21, and the gas after the evolution is discharged outside the tower by purge outlet 21; Medium transport pipe 23 is sent into absorbing medium in the II tower circulatory pool, the I tower circulating pump 5 that arranges at I tower circulatory pool middle part, II tower circulatory pool middle part arranges circulating pump 22, and the II tower bottom arranges elevator pump 20, and the I tower bottom arranges dehydration pump 1 and the pipeline that is connected and valve.
It is as follows that I of the present invention makes process:
As shown in drawings, specific works process nature of the present invention is to adopt basic anhydride (lime) to make absorbing medium, makes slurries or powder and adds II tower circulatory pool 19, and the wash liquid that is made into higher alkalisation absorbs the acid waste gas of II tower 15 low concentrations; Extracted out by II tower circulatory pool 19 bottoms and do not utilize completely medium slurries adding I tower circulatory pool 3, the wash liquid that is made into lower basicity absorbs the acid waste gas of I tower 12 higher concentrations.Waste gas is carried out the secondary washing absorption, absorbing medium is carried out the secondary utilization, utilize at last air oxidation device 2, make precipitated product behind the absorption reaction change into to have stable chemical property and have and utilize the byproduct that is worth.
That is waste gas is sent into 12 imports 6 of I tower, and through the liquid curtain that three layers of drain ring 8 form, three layers of fluid column that nozzle 9 forms, three layers of spiral board 10 form revolves loose liquid, carries out multimode and multi-level gas-liquid mass transfer, finishes first order absorption reaction.After stopping the attached wall liquid of eddy flow by flinger ring 11 subsequently, gas enters II tower 15 through tube connector 13, the atomizing layer 16 that consists of through a plurality of beaker flasks again improves the rim of a cup gas flow rate, forward absorption liquid brings to the rim of a cup ejection simultaneously, make it to pulverize atomizing, form very large gas-liquid mass transfer area, cut apart the atomizing gas-liquid mass transfer through three layers of cone cup atomizing layer 13, finish second level absorption reaction.At last by many rings cyclone demister 17, with in the same way and under gas-liquid separation open, and purify water smoke, Purge gas is discharged by the outlet 21 of II tower 15.
First order wash liquid is to extract the low turbidity liquid in top after the spacer ring 4 outer precipitations of I tower circulatory pools 3 by I tower circulating pump 5, and the three layers of I tower nozzle 9 that pump into the 12 interior settings of I tower form the three groups of upwards fluid columns of ejection and gas mass transfers in the same way; Spray causes three layers of spiral board 10, forms three sections and revolve loose liquid mist and liquid film and gas radial mass transfer under rotational flow gas drives; Revolve three sections liquid that cause the tower wall and form shellring shape liquid curtain and gas transfer through three layers of drain ring 8 water conservancy diversion down along wall.Liquid behind the staggered absorption reaction of various ways is compiled by remittance liquid bucket 6, I tower spacer ring 4 interior liquid and II tower circulatory pool 19 bottoms that the recycling potentiometers potential impacts stirring I tower circulatory pool 3 fractions do not utilize the medium slurries of being come by elevator pump 20 liftings completely to carry out the regenerative response second time, and reacted suspension warp float I tower circulatory pool 3 bottom bafflings enter I tower spacer ring 4 outer shrouds to carry out recycling after the appropriateness precipitation.Reacted simultaneously and utilized complete product, after the air oxidation device 2 that is arranged by I tower circulatory pool 3 bottoms carries out deep oxidation, extracted out from the bottom by dehydration pump 1 again and dewater and utilize.
Second level wash liquid is by the low turbidity liquid in top after the II tower spacer ring 18 outer precipitations of II tower circulating pump 22 extraction II tower circulatory pools 19, directly pump into II tower 15 tops in II tower liquid distributor 14 is uniformly distributed in each beaker flask of the top layer of boring cup atomizing layer 16, cause the rim of a cup ejection by gas band forward, make it to pulverize atomizing, form infinitely-great gas-liquid mass transfer area; Cut apart the reacted liquid of atomization absorption through three layers, separated by a ring of many rings cyclone demister 17 again, the II tower spacer ring 18 interior liquid that recycle higher potentiometers potential intense impact stirring II tower circulatory pool 19 fractions carry out the regenerative response first time with medium (lime) slurries or the powders that directly add, and reacted suspension enters II tower spacer ring 18 outer shrouds through II tower circulatory pool 19 bottom bafflings to carry out recycling after appropriateness precipitates.
Claims (1)
1. twin exhaust gas purifying tower, include I tower (12) arranged side by side, II tower (15) I tower corresponding with bottom circulatory pool (3), the tube connector (13) that II tower circulatory pool (19) and top two towers are ganged up, the remittance liquid bucket (7) that in I tower (12), from bottom to top arranges respectively, three layers of drain ring (8), three layers of nozzle (9), three layers of spiral board (10), and top flinger ring (11), exhaust gas inlet (6) in I tower circulatory pool (3) setting, waste gas enters the I tower by exhaust gas inlet (6), I tower spacer ring (4) is set in I tower circulatory pool (3), and air enters the I tower by oxidation unit (2); The II tower liquid distributor (14) that in II tower (15), from top to bottom arranges respectively, three layers of cone cup atomizing layer (16), and encircle cyclone demister (17) more, II tower spacer ring (18) is set in II tower circulatory pool (19), the top of II tower circulatory pool (19) arranges pure qi (oxygen) outlet (21), and purified gas is discharged outside the tower by pure qi (oxygen) outlet (21); Medium transport pipe (23) is sent into absorbing medium in the II tower circulatory pool (19), at I tower circulatory pool (3) middle part I tower circulating pump (5) is set, II tower circulatory pool (19) middle part arranges II tower circulating pump (22), the II tower bottom arranges elevator pump (20), and the I tower bottom arranges dehydration pump (1) and the pipeline that is connected and valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110104191 CN102225304B (en) | 2011-04-22 | 2011-04-22 | Twin exhaust gas purifying tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110104191 CN102225304B (en) | 2011-04-22 | 2011-04-22 | Twin exhaust gas purifying tower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102225304A CN102225304A (en) | 2011-10-26 |
| CN102225304B true CN102225304B (en) | 2013-09-18 |
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ID=44806324
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110104191 Expired - Fee Related CN102225304B (en) | 2011-04-22 | 2011-04-22 | Twin exhaust gas purifying tower |
Country Status (1)
| Country | Link |
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| CN (1) | CN102225304B (en) |
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| CN105056674B (en) * | 2015-07-28 | 2017-03-08 | 鞍钢实业微细铝粉有限公司 | A kind of cleaner of combustible dust environment and technique |
| CN106215660A (en) * | 2016-08-25 | 2016-12-14 | 灵宝金源晨光有色矿冶有限公司 | SO in a kind of recovery tail gas2system |
| CN107051060A (en) * | 2016-12-23 | 2017-08-18 | 江苏和亿昌环保工程科技有限公司 | A kind of desulfurizing tower wet dust separater and method |
| CN106823720A (en) * | 2017-02-17 | 2017-06-13 | 山东三融环保工程有限公司 | A kind of integrated atmosphere pollution purifier |
| CN107899399A (en) * | 2017-11-25 | 2018-04-13 | 北京亿玮坤节能科技有限公司 | A kind of low-temperature denitration technique of flue gas cleaning discharge |
| CN107913589A (en) * | 2017-11-25 | 2018-04-17 | 北京亿玮坤节能科技有限公司 | A kind of desulfurization of flue gas cleaning discharge and low-temperature denitrifying system and technique |
| CN109966824A (en) * | 2019-04-26 | 2019-07-05 | 黄中伟 | Spray column a kind of while that there is high-efficient washing purification and high-efficiency dehydration demisting |
| CN110375285B (en) * | 2019-08-14 | 2024-02-06 | 彭万旺 | Efficient combustion cooling system and flue gas cooler |
| CN115253637B (en) * | 2022-05-06 | 2024-09-27 | 祥弘晟(山东)科技发展有限公司 | Ammonia-containing waste gas treatment system |
| CN117959910B (en) * | 2024-01-25 | 2024-07-30 | 江苏捷创新材料有限责任公司 | Continuous production method for preparing ultra-high purity sulfuric acid by efficient degassing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201342319Y (en) * | 2009-01-22 | 2009-11-11 | 李士海 | Desulfurization device |
| CN201445907U (en) * | 2009-06-30 | 2010-05-05 | 青岛华拓科技股份有限公司 | Wet-process flue gas desulphurizing dual-tower combined treatment device |
| CN202052462U (en) * | 2011-04-22 | 2011-11-30 | 永兴县皓天环保科技发展有限责任公司 | Twin waste gas purification towers |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63107731A (en) * | 1986-10-23 | 1988-05-12 | Shigehisa Okayama | Exhaust gas purifying apparatus |
-
2011
- 2011-04-22 CN CN 201110104191 patent/CN102225304B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201342319Y (en) * | 2009-01-22 | 2009-11-11 | 李士海 | Desulfurization device |
| CN201445907U (en) * | 2009-06-30 | 2010-05-05 | 青岛华拓科技股份有限公司 | Wet-process flue gas desulphurizing dual-tower combined treatment device |
| CN202052462U (en) * | 2011-04-22 | 2011-11-30 | 永兴县皓天环保科技发展有限责任公司 | Twin waste gas purification towers |
Non-Patent Citations (1)
| Title |
|---|
| JP特开昭63-107731A 1988.05.12 |
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| CN102225304A (en) | 2011-10-26 |
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