CN201437071U - Multifunctional absorption tower for flue Gas desulfurization - Google Patents
Multifunctional absorption tower for flue Gas desulfurization Download PDFInfo
- Publication number
- CN201437071U CN201437071U CN2009200787914U CN200920078791U CN201437071U CN 201437071 U CN201437071 U CN 201437071U CN 2009200787914 U CN2009200787914 U CN 2009200787914U CN 200920078791 U CN200920078791 U CN 200920078791U CN 201437071 U CN201437071 U CN 201437071U
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- flue gas
- absorption tower
- gas desulfurization
- packing layer
- multifunctional
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Abstract
The utility model provides a multifunctional absorption tower mainly used for flue gas desulfurization. Through the measures of dividing the tower body of the absorption tower through separation boards, arranging holes at the tops of the separation boards and mounting air guide clapboards, a pretreatment area, a middle flue and an adsorption area which are mutually independent and communicated with each other are formed in the tower body, wherein the pretreatment area is used to wash the flue gas and then defog the flue gas, the middle flue is used to guide the flue gas to flow reasonably from the pretreatment area to the absorption area, and the absorption area is used to absorb the SO2 contained in the flue gas and remove the foam in the desulfurized flue gas. The utility model realizes comprehensive treatments of washing and purifying the flue gas through one absorption tower and effectively satisfies the requirements of low investment, easy installation and small occupied area of the desulfurization plant. The multifunctional absorption tower is particularly applicable in circumstance with big amount of flue gas to be processed.
Description
Affiliated technical field
The utility model relates to a kind of multifunctional absorption tower that is mainly used in flue gas desulfurization, this multifunctional absorption tower can be used for multiple flue gas desulfurization technique and device, and being particularly useful for ionic liquid or organic amine liquid is the solvent absorption cycle flue gas desulfurization technique and the device of desulfurizing agent.
Background technology
In the stack gases that combustion of fossil fuel and metal smelt process produce owing to contain a large amount of SO usually
2, it must can emptying after the desulfur technology treatment and purification.Present flue gas desulfurization technique has limestone-gypsum method, ammonia process, two alkaline process, phosphorus ammonium method, ACFP, amine process, solvent absorption cycle etc.Wherein, solvent absorption cycle flue gas desulfurization technique is owing to adopt as special solvents such as ionic liquid, organic amine liquid as desulfurizing agent, and this desulfurizing agent absorbs SO at normal temperatures
2, then heating desorption goes out high-purity SO
2And make desulfurizing agent regeneration, thereby have that desulfurization process is brief, desulfurizing agent can be recycled, desulfuration efficiency height, non-secondary pollution, accessory substance sulfuric acid economic worth be than characteristics such as height, thereby become one of current the most potential flue gas desulfurization technique.
Usually, when employing is carried out flue gas desulfurization as fume desulphurization methods such as solvent absorption cycles, absorb SO in the flue gas with desulfurizing agent
2And make before flue gas is purified, the raw material flue gas need be washed cooling and be handled.In view of this, at present, practices well is that two towers are set simultaneously on sulfur removal technology, respectively as flue gas washing tower and SO
2After absorption tower, flue gas enter scrubbing tower and handle with washings countercurrent washing cooling from the scrubbing tower bottom, draw and enter SO from the scrubbing tower cat head again through pipeline
2Carry out the counter-current absorption purification with desulfurizing agent at the bottom of absorbing Tata.But above-mentioned employing double tower carries out the preliminary treatment of flue gas respectively and there is following defective in the mode of desulfurizing and purifying:
At first, the employing of two separate tower bodies increases the equipment investment of desulfurizer; Secondly, flue gas desulfurization environment for big flow, smoke conveying duct from scrubber overhead to the bottom, absorption tower need have heavy caliber and bigger length, and this has significantly improved the investment of device aspect process pipe again, has increased the installation difficulty of equipment and pipeline simultaneously; Moreover setting up also of double tower had higher requirement to the floor space of whole desulfurizer.
Summary of the invention
Be integrated degree and multifunctionality by raising main process equipment, with investment, the reduction device installation difficulty that realizes effectively reducing flue gas desulfur device, and reducing the purpose of plant area area simultaneously, the utility model provides a kind of multifunctional absorption tower that is used for flue gas desulfurization.
The technical scheme that the utility model adopted is: adopt the division board and the air guide dividing plate that are made of metal or nonmetallic materials, the absorption tower tower body vertically is separated into pretreating zone, three separate zones of middle flue and uptake zone from top to bottom, wherein, the zone of the formation that surrounds is a pretreating zone between division board and tower body, the zone that surrounds formation between division board and air guide dividing plate is middle flue, and the zone of the formation that surrounds is the uptake zone between air guide dividing plate and tower body.Division board is vertical tabular hermetically-sealed construction, but offers the perforation hole at its top; Air guide dividing plate top is vertical tabular hermetically-sealed construction, and the bottom is a column supporting structural.By the hole at division board top and the space between air guide the lower partition upright supports, realized being interconnected between pretreating zone, middle flue and uptake zone again simultaneously.In the pretreating zone, mainly form successively from top to bottom by demist section packing layer, washings spray thrower, liquid distribution trough, washing section packing layer, washings storage tank etc.; In the uptake zone, mainly form successively from top to bottom by foam removal section packing layer, desulfurizing agent lean solution spray thrower, absorber portion packing layer, desulfurizing agent rich solution storage tank etc.In above-mentioned three zones, pretreating zone in order to flue gas is washed and washs the back demist, middle flue in order to the guiding flue gas from pretreating zone the Rational flow to the uptake zone, the uptake zone in order to the absorption flue gas in SO
2Foam removal with the desulfurization flue gas.
In working order down, flue gas self-absorption tower bottom enters pretreating zone and flows from bottom to top, and in the washing section packing layer with the washings of drip washing from top to bottom to its countercurrent washing with the cooling dedusting after, handle through demist again, thereby finish the preliminary treatment of flue gas.Pretreated flue gas enters the bottom, uptake zone at cat head self-isolation plate top hole through middle flue, and flows from bottom to top in the uptake zone, again in the absorber portion packing layer with SO in the desulfurizing agent lean solution counter-current absorption flue gas
2, flue gas after being purified again after foam removal is handled top, self-absorption district export to smoke stack emission.The washing backwater is delivered to the washings circulatory system in the pretreating zone at the bottom of tower; The desulfurizing agent rich solution is sent tower body and is carried out post processing in the uptake zone.What deserves to be mentioned is to have desirable SO when the desulfurizing agent lean solution adopts atomizing spray and desulfurizing agent lean solution
2During absorption rate, the absorber portion packing layer can be cancelled in the uptake zone, thereby realizes that the desulfurizing agent lean solution is to SO in the flue gas under the void tower state
2Counter-current absorption.
The beneficial effects of the utility model are, by a kind of technique device that can be used for multiple flue gas desulfurization is provided, the multifunctional absorption tower that is particularly useful for the flue gas desulfurization of solvent absorption cycle, realized washing preliminary treatment, absorption cleaning function simultaneously with single absorption tower to flue gas, thereby effectively satisfied desulfurizer to low investment, easily install, floor space will be tried one's best little requirement, is specially adapted to the bigger operating mode of flue gas treating capacity.
Below in conjunction with drawings and Examples the utility model is further specified.But content of the present utility model is not limited to following embodiment.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is on Fig. 1 basis, in conjunction with solvent absorption cycle flue gas desulfurization technique flow process, formed the utility model working state schematic representation.
Among Fig. 1 and Fig. 2,1. tower shell, 2. demist section packing layer, 3. filler supports, 4. washing water inlet, 5. washings spray thrower, 6. liquid distribution trough, 7. washing section packing layer, 8. filler supports, 9. waste gas inlet, 10. washings storage tank, 11. washing backwater outlets, 12. Sewage outlet, 13. holes, 14. division boards, 15. the air guide dividing plate, 16. clean gas outlets, 17. foam removal section packing layers, 18. filler supports, 19. desulfurizing agent lean solution spray thrower, 20. desulfurizing agent lean solutions inlet, 21. absorber portion packing layers, 22. filler supports, 23. desulfurizing agent rich solution storage tank, the outlet of 24. desulfurizing agent rich solutions, 25. sewage draining exits.
Among Fig. 1 and Fig. 2, the common pretreating zone that constitutes multifunctional absorption tower of (2) to (12) part, the common uptake zone that constitutes multifunctional absorption tower of (16) to (25) part, (13), (14) and the common middle flue that constitutes multifunctional absorption tower of (15) part.
Among Fig. 2, the continuous dotted line of band arrow, expression flow of flue gas direction.
Specific embodiment
According to Fig. 2, the utility model is described further.
Absorption Tata shell (1) adopts Metal Material Welding to form or the reinforced concrete cast forms the inside lining anti-corrosive layer.The absorption tower tower body by division board (14) and air guide dividing plate (15) from top to bottom vertical segmentation become three separate parts, form pretreating zone, middle flue and uptake zone respectively.
In the pretreating zone, washings are (4) injection tower body from the washing water inlet, and through washings spray thrower (5) spray and descend, after evenly distributing through liquid distribution trough (6), at washing section packing layer (7) the up flue gas that from the waste gas inlet (9) enter is carried out countercurrent washing, realize cooling, dust removal process flue gas.Flue gas after the washing is finished preliminary treatment after demist section packing layer (2) is removed the droplet that wherein mixes, and enters middle flue from the division board hole (13) of top of tower.Washing backwater and demist drop mix at the washings storage tank (10) of pretreating zone Nei Ta bottom, after detecting by analysis, reusablely return the washings circulatory system through washing backwater outlet (11), the mixed liquor that exceeds standard is delivered to sewage treatment plant from Sewage outlet (12).
In the middle flue, self-isolation plate holes (13) and come descending through pretreated flue gas along middle flue, and pass space between air guide dividing plate (15) lower pole, enter the uptake zone.
In the uptake zone, the desulfurizing agent lean solution enters tower body from desulfurizing agent lean solution inlet (20), and through desulfurizing agent lean solution spray thrower (19) spray and descend, absorber portion packing layer (21) in and enter also up flue gas from middle flue and carry out counter-current absorption, with the SO in the absorbing and removing flue gas
2, flue gas is purified.The desulfurizing agent lean solution absorbs SO
2After, form the desulfurizing agent rich solution, and flow into desulfurizing agent rich solution storage tank (23) downwards.Flue gas after being purified is passed through on again after foam removal section packing layer (17) gives foam removal, delivers to smoke stack emission from clean gas outlet (16).Desulfurizing agent rich solution in the desulfurizing agent rich solution storage tank (23) returns the desulfurizing agent regenerative system through bottom, absorption tower desulfurizing agent rich solution outlet (24).Sewage draining exit (25) is done blowdown in time at the bottom of the cleaning absorption tower and is used.
Claims (6)
1. flue gas desulfurization multifunctional absorption tower is characterized in that: the absorption tower tower body is by the vertical from top to bottom separation of division board and air guide dividing plate, forms not only separate in tower body but also the pretreating zone that is interconnected, three zones of middle flue and uptake zone.
2. a kind of flue gas desulfurization multifunctional absorption tower according to claim 1 is characterized in that division board adopts metal or nonmetallic materials, and it is vertical tabular hermetically-sealed construction, but offers the perforation hole at its top.
3. a kind of flue gas desulfurization multifunctional absorption tower according to claim 1 is characterized in that the air guide dividing plate adopts metal or nonmetallic materials, and its top is vertical tabular hermetically-sealed construction, and the bottom is a column supporting structural.
4. a kind of flue gas desulfurization multifunctional absorption tower according to claim 1 is characterized in that mainly being made up of demist section packing layer, washings spray thrower, liquid distribution trough, washing section packing layer, washings storage tank successively from top to bottom in the pretreating zone.
5. a kind of flue gas desulfurization multifunctional absorption tower according to claim 1 is characterized in that mainly being made up of foam removal section packing layer, desulfurizing agent lean solution spray thrower, absorber portion packing layer, desulfurizing agent rich solution storage tank successively from top to bottom in the uptake zone.
6. a kind of flue gas desulfurization multifunctional absorption tower according to claim 5 is characterized in that can cancelling the absorber portion packing layer in the uptake zone, adopts void tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200787914U CN201437071U (en) | 2009-01-21 | 2009-01-21 | Multifunctional absorption tower for flue Gas desulfurization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200787914U CN201437071U (en) | 2009-01-21 | 2009-01-21 | Multifunctional absorption tower for flue Gas desulfurization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201437071U true CN201437071U (en) | 2010-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200787914U Expired - Lifetime CN201437071U (en) | 2009-01-21 | 2009-01-21 | Multifunctional absorption tower for flue Gas desulfurization |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102151463A (en) * | 2011-05-11 | 2011-08-17 | 厦门大学 | Device for absorbing tail gas generated by calcining of kaoline |
| CN104096456A (en) * | 2014-07-21 | 2014-10-15 | 苏州塔可盛电子科技有限公司 | Efficient absorption tower |
| CN104214789A (en) * | 2013-05-31 | 2014-12-17 | 中国电力工程顾问集团华北电力设计院工程有限公司 | Smoke waste heat extraction tower for thermal power plant |
| CN104215091A (en) * | 2013-05-31 | 2014-12-17 | 中国电力工程顾问集团华北电力设计院工程有限公司 | Flue gas afterheat and water recycling device |
| CN115090083A (en) * | 2022-08-22 | 2022-09-23 | 天津长芦汉沽盐场有限责任公司 | Partition board absorption tower, air bromine blowing system and air bromine blowing method |
-
2009
- 2009-01-21 CN CN2009200787914U patent/CN201437071U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102151463A (en) * | 2011-05-11 | 2011-08-17 | 厦门大学 | Device for absorbing tail gas generated by calcining of kaoline |
| CN104214789A (en) * | 2013-05-31 | 2014-12-17 | 中国电力工程顾问集团华北电力设计院工程有限公司 | Smoke waste heat extraction tower for thermal power plant |
| CN104215091A (en) * | 2013-05-31 | 2014-12-17 | 中国电力工程顾问集团华北电力设计院工程有限公司 | Flue gas afterheat and water recycling device |
| CN104096456A (en) * | 2014-07-21 | 2014-10-15 | 苏州塔可盛电子科技有限公司 | Efficient absorption tower |
| CN115090083A (en) * | 2022-08-22 | 2022-09-23 | 天津长芦汉沽盐场有限责任公司 | Partition board absorption tower, air bromine blowing system and air bromine blowing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100414 |