CN206152620U - Dual cycle desulfurizing tower - Google Patents
Dual cycle desulfurizing tower Download PDFInfo
- Publication number
- CN206152620U CN206152620U CN201621081771.9U CN201621081771U CN206152620U CN 206152620 U CN206152620 U CN 206152620U CN 201621081771 U CN201621081771 U CN 201621081771U CN 206152620 U CN206152620 U CN 206152620U
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- Prior art keywords
- tower
- desulfurization
- circulation
- slurry pool
- desulfurizing tower
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Abstract
The utility model discloses a dual cycle desulfurizing tower, the utility model discloses the circulation desulfurization district desulfurization district of circulating after with before desulfurizing tower upper portion sets up mutually independent, preceding circulation desulfurization district, preceding circulating pump and the preceding circulation desulfurization system of the common formation in thick liquid pond, after the desulfurization system that circulates after desulfurization district, back circulating pump form with the thick liquid pond jointly that circulates, the preceding circulation desulfurization system thick liquid pond of desulfurization system sharing of circulating after with to this realizes forming relatively independent dual cycle desulfurizing tower in a desulfurizing tower, agitating unit is including two effect pneumatic cylinders and lifter plate, two effect pneumatic cylinders are located between following current tower and the counter -current tower, the lifter plate is located in the thick liquid pond and by the reciprocal lift of two effect hydraulic cylinder drive, the desulfurization of flue gas is accomplished by dual cycle desulfurizing tower jointly, the utility model discloses both guarantee higher desulfurization efficiency, reduced thick liquid circulation volume and system energy consumption again to the desulfurizing tower height has still been reduced to whole the arranging of desulfurizing tower, has simplified the desulfurated system of dual cycle.
Description
Technical field
The utility model is related to a kind of flue gas desulfurization technique, and in particular to a kind of double circulation desulphurization tower.
Background technology
The SO of newest fossil-fuel power plant atmospheric pollutant emission standard (GB 13223-2011)2Emission limit improves larger,
Typically require in 100mg/N m3Within, local area requires 50mg/Nm3。
Current single cycle desulfurization Tower System mainly operates in middle low-sulfur coal area, is entirely capable of meeting emission request.To portion
Divide sulphur coal area, it is desirable to which desulfuration efficiency reaches more than 98%, or even requires that more than 99% could meet emission request, using list
Circulation desulfurization Tower System will meet emission request, and desulfurizing tower will be very high, and energy consumption is also higher, would have to one sometimes
Desulfurizing tower is divided into two desulfurizing tower series operations, but two desulfurizing tower series connection are taken up an area, invest very big, are unfavorable for high-efficiency and economic
Operation；And when traditional desulphurization system is shut down, slurry pool precipitation is serious, affects the desulfurization performance of slurries, is unfavorable for using,.
Therefore, under the newest discharge standard of national requirements, it is highly desirable to develop the desulfurization technology of high-efficiency low energy consumption, with
Meet the requirement of environmental protection, giving people class has more preferable living space.
Utility model content
In view of this, the utility model provides a kind of double circulation desulphurization tower, can reduce while desulfuration efficiency is met
System energy consumption, investment reduction, occupation of land reach the newest discharge standard of national requirements again, and desulfurization performance is good, beneficial to environmental protection.
Double circulation desulphurization tower of the present utility model, including desulfurizing tower and agitating device, the top of the desulfurizing tower is mutual
The following current tower of separation and countercurrent tower, following current tower is provided with smoke inlet, and countercurrent tower is provided with exhanst gas outlet, and the bottom of desulfurizing tower is
Slurry pool, the slurry pool top is connection following current tower and the exhaust gases passes of countercurrent tower, and circulation is de- before arranging in the following current tower
Sulphur area, arranges Posterior circle desulfurization zone in countercurrent tower, and the outlet of the front circulating pump is communicated in slurry pool and suitable by front three-way pipe
The front circulation desulfurization area of stream tower；The outlet of the Posterior circle pump is communicated in the Posterior circle of slurry pool and countercurrent tower by rear three-way pipe
Desulfurization zone；The agitating device includes double acting hydraulic cylinder and lifter plate；The double acting hydraulic cylinder is located at following current tower and adverse current
Between tower；The lifter plate in slurry pool and drives reciprocal lifting by double acting hydraulic cylinder；
Further, the following current Ta Neiqian circulation desulfurizations area top is provided with dry and wet interface rinse-system, in the countercurrent tower
Posterior circle desulfurization zone top is provided with demister；
Further, the slurry pool is also communicated with oxidation air system；
Further, the slurry pool is also communicated with desulfurizing agent replenishment system；
Further, the slurry pool is also communicated with plasma discharge system；
Further, the desulfurizing tower is U-shaped tower.
The beneficial effects of the utility model are：The utility model arranges separate front circulation simultaneously in desulfurizing tower
Desulfurization zone and Posterior circle desulfurization zone, front circulation desulfurization area, front circulating pump and slurry pool are collectively forming front circulation desulfurization system；After follow
Ring desulfurization zone, Posterior circle pump and slurry pool are collectively forming Posterior circle desulphurization system；Front circulation desulfurization system and Posterior circle desulfurization system
Altogether with a slurry pool, realize forming relatively independent double circulation desulphurization tower, the desulfurization of flue gas in a desulfurizing tower with this
Completed jointly by double circulation desulphurization tower.
The relatively independent operation of double circulation desulphurization tower of the present utility model, both ensure that higher desulfuration efficiency, reduce again
Serum recycle amount and system energy consumption, and desulfurizing tower integral arrangement also reduces desulfurization tower height degree, simplifies double circulation desulphurization
System, has saved investment；The utility model is particularly suitable for the flue gas desulfurization of burning high sulfur coal generation, and desulfuration efficiency can reach
More than 99%, desulfurization performance is good, beneficial to environmental protection.
Relative to conventional desulphurization system, double circulation desulphurization tower of the present utility model adopts U-shaped Deethanizer design, contributes to gas-liquid
Two-phase is fully contacted and mixes, and the time of staying is longer, and desulfurized effect is more preferable.Being fluctuated by lifter plate to realize to slurries
Slurries in pond 9 carry out uniform, sufficient stirring, prevent precipitation, oxidation reinforced effect.The desulfurization slurry of conventional desulphurization system
Mass concentration is 15% or so, and using double circulation desulphurization tower, desulfurization slurry mass concentration is 20%～25%, and concentration is improved, phase
For two desulfurizing tower series connection, slurry pool volume is relatively small, cost of reducing investment outlay.
Description of the drawings
The utility model is further described with reference to the accompanying drawings and examples：
Fig. 1 is structural representation of the present utility model.
Specific embodiment
Fig. 1 is structural representation of the present utility model, as illustrated, double circulation desulphurization tower of the present utility model, including de-
Sulphur tower 14, the top of the desulfurizing tower 14 is the mutual following current tower 2 for separating and countercurrent tower 4, and following current tower 2 is provided with smoke inlet,
Countercurrent tower 4 is provided with exhanst gas outlet, and the bottom of desulfurizing tower 14 is slurry pool 9, and the top of the slurry pool 9 is the He of connection following current tower 2
Posterior circle desulfurization zone is set in circulation desulfurization area 15 before arranging in the exhaust gases passes 16 of countercurrent tower 4, the following current tower 2, countercurrent tower 4
6, the outlet of the front circulating pump 12 is communicated in the front circulation desulfurization area 15 of slurry pool 9 and following current tower 2 by front three-way pipe 17；Institute
The outlet for stating Posterior circle pump 7 is communicated in the Posterior circle desulfurization zone 6 of slurry pool 9 and countercurrent tower 4 by rear three-way pipe 18；The stirring
Device includes double acting hydraulic cylinder 8 and lifter plate 10；The double acting hydraulic cylinder 8 is located between following current tower and countercurrent tower；It is described
Lifter plate 10 in slurry pool and drives reciprocal lifting by double acting hydraulic cylinder；Front circulation desulfurization area 15, front circulating pump 12
Front circulation desulfurization system is collectively forming with slurry pool 9；Posterior circle desulfurization zone 6, Posterior circle pump 7 are followed after being collectively forming with slurry pool 9
Ring desulphurization system；Front circulation desulfurization system shares a slurry pool 9 with Posterior circle desulphurization system, is formed in a desulfurizing tower 14
Relatively independent double circulation desulphurization tower, the desulfurization of flue gas is completed jointly by double circulation desulphurization tower, but double circulation desulphurization tower is relative
Independent operating；When traditional desulphurization system is shut down, slurry pool precipitation is serious, affects the desulfurization performance of slurries, is unfavorable for using, this
The outlet of front circulating pump 12 and Posterior circle pump 7 is not only passed to corresponding front circulation desulfurization area 15 and Posterior circle desulfurization zone by embodiment
6, and corresponding front three-way pipe 17 and rear three-way pipe 18 are additionally used by the outlet of front circulating pump 12 and Posterior circle pump 7 and slurries
Connection between pond 9, front three-way pipe 17, rear three-way pipe 18 and corresponding front circulation desulfurization area 15, Posterior circle desulfurization zone 6 and slurry pool
The pipeline section of 9 connections is mounted on the valve for controlling break-make, by front circulating pump 12 and Posterior circle when running desulphurization system
Forward circulation desulfurization area 15 and Posterior circle desulfurization zone 6 provide slurries to pump 7, and circulating pump 12 is followed with after before opening when desulphurization system is shut down
Ring pump 7 simultaneously close off front three-way pipe 17, rear three-way pipe 18 with it is corresponding before between circulation desulfurization area 15, Posterior circle desulfurization zone 6
Valve, and then circulating for slurries in slurry pool 9 is realized by front circulating pump 12 and Posterior circle pump 7, it is prevented effectively from slurries
Precipitate, it is ensured that desulfurization performance, be beneficial to environmental protection, the liquid outlet that front three-way pipe 17 and rear three-way pipe 18 are connected with slurry pool 9
In slurry pool 9 liquid level of slurries once, before reducing the power consumption of circulating pump 12 and Posterior circle pump 7 avoid slurries to splash simultaneously and
Noise is excessive；Being fluctuated by lifter plate can realize carrying out the slurries in slurry pool 9 uniform, sufficient stirring, prevent from sinking
Form sediment, oxidation reinforced effect.
In the present embodiment, the top of 2 Nei Qian circulation desulfurizations area of the following current tower 15 is provided with dry and wet interface rinse-system 1, described
The top of Posterior circle desulfurization zone 6 is provided with demister 3 in countercurrent tower 4.
In the present embodiment, the slurry pool 9 is also communicated with oxidation air system 13, the oxidation air of oxidation air system 13
Cloth air port can be the other forms such as thatch rifle, or plug flat.
In the present embodiment, the slurry pool 9 is also communicated with desulfurizing agent replenishment system 5, and desulfurizing agent replenishment system 5 is used for slurry
The appropriate desulfurizing agent of supplement in liquid pool 9.
In the present embodiment, the slurry pool 9 is also communicated with plasma discharge system 11, and plasma discharge system 11 can effectively by slurry pool 9
The crystalline sulfuric acid salt of interior formation is discharged.
In the present embodiment, the desulfurizing tower 14 is U-shaped tower, and the structure preferably U-shaped squarer of desulfurizing tower 14 is but it is also possible to be U
The various possible combinations such as type circular tower or U-shaped circumference tower or mode of texturing.
In the utility model, demister 3 can be flat board or chevron shaped fixed board-like demister 3, or wet type
The other forms such as the combination of electric cleaner or fixed board-like demister 3 and wet electrical dust precipitator；Front circulation desulfurization area 15 is with after
The preferred fluid column of absorpting form (or liquid curtain) in circulation desulfurization area 6 absorbs but it is also possible to be spray+fluid column (or liquid curtain) or spraying+
The various possible forms such as spray-absorption.
Using the sulfur removal technology of double circulation desulphurization tower of the present utility model, former flue gas enters desulfurizing tower 14 from smoke inlet,
Front circulation desulfurization area 15 is entered Jing after dry and wet interface rinse-system 1, is then carried by front circulating pump 12 in front circulation desulfurization area 15
For desulfurization slurry absorbing and removing SO2, desulfurization slurry absorption SO2After fall in slurry pool 9；After premenstrual circulation desulfurization area 15 is processed
Neat stress enter Posterior circle desulfurization zone 6 from the exhaust gases passes 16 of the top of slurry pool 9, it is then rear in Posterior circle desulfurization zone 6
The further absorbing and removing SO of desulfurization slurry that circulating pump 7 is provided2, desulfurization slurry absorption SO2After fall in slurry pool 9, Jing Posterior circles
Neat stress after desulfurization zone 6 is processed is entered after the demisting dedusting of demister 3, and from exhanst gas outlet desulfurizing tower 14 is discharged.
Absorb SO2The desulfurization slurry fallen into afterwards in slurry pool 9 provides oxygen and carries out oxidation reaction by oxidation air system 13,
Generate sulfate and crystallize.
Desulfurizing agent is supplemented in slurry pool 9 desulfurizing agent replenishment system 5 (desulfurizing agent supplement can be mended as a slurry
Fill, or with the other forms such as powder supplement), while the crystalline sulfuric acid salt in slurry pool 9 is Jing after the discharge of plasma discharge system 11
Processed.
Desulfurization slurry pH value in front circulation neutralization oxidation pond 7 is 5～6, is conducive to sulphate crystal, and improves desulfurization effect
Rate, reduces liquid-gas ratio；Desulfurization slurry mass concentration in slurry pool 9 is 20%～25%；The desulfurization slurry is by calcium base or magnesium
Base desulfurizer is made.
In the utility model, the desulfurization of flue gas is completed jointly by double circulation desulphurization tower, the relatively independent fortune of double circulation desulphurization tower
OK, higher desulfuration efficiency had both been ensure that, serum recycle amount and system energy consumption had been reduced again, and the integral arrangement of desulfurizing tower 14 is also
The height of desulfurizing tower 14 is reduced, the system for simplifying double circulation desulphurization has saved investment；The utility model is particularly suitable for burning
The flue gas desulfurization that sulphur coal is produced, desulfuration efficiency can reach more than 99%.
Finally illustrate, above example is only unrestricted to illustrate the technical solution of the utility model, although logical
Cross the utility model is described with reference to preferred embodiment of the present utility model, but one of ordinary skill in the art
It should be appreciated that various changes can be made to it in the form and details, without departing from appended claims institute
The spirit and scope of the present utility model for limiting.
Claims (6)
1. a kind of double circulation desulphurization tower, it is characterised in that：Including desulfurizing tower and agitating device, the top of the desulfurizing tower is mutual
The following current tower of separation and countercurrent tower, following current tower is provided with smoke inlet, and countercurrent tower is provided with exhanst gas outlet, and the bottom of desulfurizing tower is
Slurry pool；The slurry pool top is connection following current tower and the exhaust gases passes of countercurrent tower, and in the following current tower front circulation is provided with
Desulfurization zone, is provided with Posterior circle desulfurization zone in countercurrent tower, the outlet of the front circulating pump is communicated in slurry pool by front three-way pipe
With the front circulation desulfurization area of following current tower；After the outlet of the Posterior circle pump is communicated in slurry pool and countercurrent tower by rear three-way pipe
Circulation desulfurization area；The agitating device includes double acting hydraulic cylinder and lifter plate；The double acting hydraulic cylinder located at following current tower and
Between countercurrent tower；The lifter plate in slurry pool and drives reciprocal lifting by double acting hydraulic cylinder.
2. double circulation desulphurization tower according to claim 1, it is characterised in that：The following current Ta Neiqian circulation desulfurizations area top
It is provided with dry and wet interface rinse-system；Posterior circle desulfurization zone top is provided with demister in the countercurrent tower.
3. double circulation desulphurization tower according to claim 1, it is characterised in that：The slurry pool is also communicated with oxidation air system
System.
4. double circulation desulphurization tower according to claim 1, it is characterised in that：The slurry pool is also communicated with desulfurizing agent supplement
System.
5. double circulation desulphurization tower according to claim 1, it is characterised in that：The slurry pool is also communicated with plasma discharge system.
6. double circulation desulphurization tower according to claim 1, it is characterised in that：The desulfurizing tower is U-shaped tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621081771.9U CN206152620U (en) | 2016-09-26 | 2016-09-26 | Dual cycle desulfurizing tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621081771.9U CN206152620U (en) | 2016-09-26 | 2016-09-26 | Dual cycle desulfurizing tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206152620U true CN206152620U (en) | 2017-05-10 |
Family
ID=58651703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621081771.9U Expired - Fee Related CN206152620U (en) | 2016-09-26 | 2016-09-26 | Dual cycle desulfurizing tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206152620U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110180375A (en) * | 2019-06-10 | 2019-08-30 | 武汉凯迪电力环保有限公司 | A kind of unilateral desulfurizing tower of turning back for being equipped with pallet |
-
2016
- 2016-09-26 CN CN201621081771.9U patent/CN206152620U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110180375A (en) * | 2019-06-10 | 2019-08-30 | 武汉凯迪电力环保有限公司 | A kind of unilateral desulfurizing tower of turning back for being equipped with pallet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170510 Termination date: 20180926 |