CN202263522U - Flue gas desulfurization serial-column device - Google Patents
Flue gas desulfurization serial-column device Download PDFInfo
- Publication number
- CN202263522U CN202263522U CN 201120411914 CN201120411914U CN202263522U CN 202263522 U CN202263522 U CN 202263522U CN 201120411914 CN201120411914 CN 201120411914 CN 201120411914 U CN201120411914 U CN 201120411914U CN 202263522 U CN202263522 U CN 202263522U
- Authority
- CN
- China
- Prior art keywords
- absorption tower
- tower body
- tower
- flue gas
- flue
- 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.)
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 239000003546 flue gas Substances 0.000 title claims abstract description 27
- 238000006477 desulfuration reaction Methods 0.000 title abstract description 5
- 230000023556 desulfurization Effects 0.000 title abstract description 5
- 238000010521 absorption reaction Methods 0.000 claims abstract description 73
- 239000002002 slurry Substances 0.000 claims description 29
- 239000007921 spray Substances 0.000 claims description 22
- 239000007789 gas Substances 0.000 claims description 21
- 238000007254 oxidation reaction Methods 0.000 claims description 20
- 230000003647 oxidation Effects 0.000 claims description 19
- 239000000779 smoke Substances 0.000 claims description 17
- 239000010440 gypsum Substances 0.000 claims description 12
- 229910052602 gypsum Inorganic materials 0.000 claims description 12
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 abstract description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 235000019738 Limestone Nutrition 0.000 description 3
- 230000003009 desulfurizing effect Effects 0.000 description 3
- 239000006028 limestone Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- GBAOBIBJACZTNA-UHFFFAOYSA-L calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 description 1
- 235000010261 calcium sulphite Nutrition 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a flue gas desulfurization serial-column device, which comprises an absorption column A (1), an absorption column B (2), a flue (3) and a communication pipeline (4), wherein the top of the absorption column A (1) is connected with the middle of the absorption column B (2) through the flue (3), and the bottoms of the absorption column A (1) and the absorption column B (2) are connected together through the communication pipeline (4). The flue gas desulfurization serial-column device disclosed by the utility model not only can effectively remove sulfur dioxide in flue gas, but also has the advantages of simple structure, low cost and low power consumption.
Description
Technical field
The utility model relates to a kind of flue gas desulfur device, particularly a kind of column in series flue gas desulfur device.
Background technology
At present, sulfur removal technology is a lot, and wherein the limestone-gypsum wet desulfurizing process has accounted for more than 80%.Power plant is equipped with desulfurizer at present, to satisfy environmental requirement.But because the actual coal-fired sulfur content of a lot of power plant is considerably beyond design load, and environmental emission standard is about to improve, and existing desulfurizer can not satisfy discharge standard, so need to transform.
In order to address the above problem, people have invented the series connection desulfurizing tower, that is: preliminary treatment absorption tower of series connection on original absorption tower can either make flue gas after the processing reach discharge standard like this and can make full use of existing equipment again, reduces improvement cost.But still there are a lot of weak points in this series connection desulfurizing tower:
Because gas liquid ratio required in the identical column in series of two conventional pH values is all higher, the recycle slurry liquid measure is higher, causes the whole system cost to improve, and relative power consumption is bigger.
Because the pH in 2 towers in conventional series connection absorption tower is identical, therefore 2 towers all need be provided with lime stone slurry supply pump, oxidation fan and gypsum excavationg pump, all need a large amount of power consumptions during these equipment work.
The utility model content
The purpose of the utility model is, a kind of column in series flue gas desulfur device is provided, and it not only can effectively remove sulfur in smoke, and has the advantage of simple in structure, low cost of manufacture and saving electric energy.
The technical scheme of the utility model: a kind of column in series flue gas desulfur device; Comprise absorption tower A, absorption tower B, flue and connecting pipe; The top of absorption tower A is connected with the middle part of absorption tower B through flue, and the bottom of absorption tower A and absorption tower B links together through connecting pipe.Adopt the column in series of this structure can the pH value in the A of absorption tower be controlled between the 4-4.5; PH value in the B of absorption tower is controlled between the 6-6.5; And the slurries in the B of absorption tower can get to through the connecting pipe overflow or through the slurries delivery pump and carry out oxidation in the A of absorption tower, discharge slurries through the gypsum excavationg pump of absorption tower A again after the oxidation.This structure need not on the A of absorption tower, to be provided with the lime stone slurry supply pump; And need not on the B of absorption tower, to be provided with oxidation fan and gypsum excavationg pump; Therefore device structure is simplified, and the corresponding apparatus manufacturing cost also decreases, and the equipment whole power consumption also significantly reduces.
In the aforesaid column in series flue gas desulfur device; Absorption tower A comprises tower body A, smoke inlet A, exhanst gas outlet A, agitator A, oxidation fan and circulating pump A; Smoke inlet A is located at the middle part of tower body A; Top in the tower body A is provided with spray equipment A, and spray equipment A is connected with the end of the circulating pump A that is located at tower body A bottom through circulating line A, and the other end of circulating pump A is connected with tower body A bottom through pipeline; The bottom of tower body A is provided with oxidation fan, agitator A and gypsum excavationg pump, and exhanst gas outlet A is located at the top of tower body A and is connected with flue.
In the aforesaid column in series flue gas desulfur device; Absorption tower B comprises tower body B, smoke inlet B, exhanst gas outlet B, circulating pump B, agitator B, slurry supply pump and spray equipment B; Smoke inlet B is located at the middle part of tower body B and is connected with flue, and agitator B and slurry supply pump all are located at the bottom of tower body B, and the end of circulating pump B is connected with tower body B bottom through pipeline; The other end is connected with the spray equipment B that is located at tower body B internal upper part through circulating line B, and exhanst gas outlet B is located at the top of tower body B.
In the aforesaid column in series flue gas desulfur device, be provided with demister between exhanst gas outlet B and the spray equipment B.The purpose that demister is set is for the water droplet in the clean flue gas is removed.
In the aforesaid column in series flue gas desulfur device, connecting pipe is provided with the slurries delivery pump.
Compared with prior art; Because the utility model is cascaded two absorption towers; And on the absorption tower bottom of A and absorption tower B is provided with and is connected pipeline, can the slurries in the B of absorption tower be transported in the A of absorption tower like this, two absorption towers are moved under different pH; Slurries pH in the A of absorption tower is controlled between the 4-4.5, and the slurry pH value in the B of absorption tower is controlled between the 6-6.5.Can improve the lime stone dissolving under the pH situation that absorption tower A is lower like this, help the oxidation of calcium sulfite; Absorption tower B helps SO under higher pH situation
2Absorption, B required recycle slurry liquid measure in absorption tower reduces, total SR reduces, corresponding cost and operating cost reduce.
Because the slurries in the B of absorption tower constantly are transported to through connecting pipe or slurries delivery pump and carry out oxidation in the A of absorption tower, discharge through the gypsum excavationg pump of absorption tower A again after the oxidation.So just need not gypsum excavationg pump and oxidation fan are set on the B of absorption tower, in the A of absorption tower, carry out oxidation, pH is controlled between the 4-4.5, and oxidation power improves, so need total oxidation air quantity to significantly reduce.The great like this equipment of having simplified, the whole power consumption of reduction cost and equipment.
Description of drawings
Fig. 1 is the overall structure sketch map of the utility model;
Fig. 2 is the structural representation of absorption tower A;
Fig. 3 is the structural representation of absorption tower B.
Being labeled as in the accompanying drawing: 1-absorption tower A, 2-absorption tower B, 3-flue, 4-connecting pipe, 5-tower body A, 6-smoke inlet A; 7-exhanst gas outlet A, 8-agitator A, 9-oxidation fan, 10-circulating pump A, 11-spray equipment A, 12-circulating line A; 14-gypsum excavationg pump, 15-tower body B, 16-smoke inlet B, 17-exhanst gas outlet B, 18-circulating pump B, 19-agitator B; The 20-slurry supply pump, 22-circulating line B, 23-spray equipment B, 24-demister, 25-slurries delivery pump.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
The embodiment of the utility model: as shown in Figure 1; A kind of column in series flue gas desulfur device; Comprise absorption tower A1, absorption tower B2, flue 3 and connecting pipe 4; The top of absorption tower A1 is connected with the middle part of absorption tower B2 through flue 3, and the bottom of absorption tower A1 and absorption tower B2 links together through connecting pipe 4.Connecting pipe 4 is provided with slurries delivery pump 25.
As shown in Figure 2; Absorption tower A1 comprises tower body A5, smoke inlet A6, exhanst gas outlet A7, agitator A8, oxidation fan 9 and circulating pump A10; Smoke inlet A6 is located at the middle part of tower body A5; Top in the tower body A5 is provided with spray equipment A11, and spray equipment A11 is connected with the end of the circulating pump A10 that is located at tower body A5 bottom through circulating line A12, and the other end of circulating pump A10 is connected with tower body A5 bottom through pipeline; The bottom of tower body A5 is provided with oxidation fan 9, agitator A8 and gypsum excavationg pump 14, and exhanst gas outlet A7 is located at the top of tower body A5 and is connected with flue 3.
As shown in Figure 3; Absorption tower B2 comprises tower body B15, smoke inlet B16, exhanst gas outlet B17, circulating pump B18, agitator B19, slurry supply pump 20 and spray equipment B23; Smoke inlet B16 is located at the middle part of tower body B15 and is connected with flue 3; Agitator B19 and slurry supply pump 20 all are located at the bottom of tower body B15; The end of circulating pump B18 is connected with tower body B15 bottom through pipeline, and the other end is connected with the spray equipment B23 that is located at tower body B15 internal upper part through circulating line B22, and exhanst gas outlet B17 is located at the top of tower body B15.Be provided with demister 24 between exhanst gas outlet B17 and the spray equipment B23.
Operation principle: contain sulfur dioxide flue gas and pass through among the smoke inlet A6 entering absorption tower A1, the absorption liquid of absorption tower A1 bottom gets into circulating line A12 through circulating pump A10, sprays among the spray equipment A11 on entering A1 top, absorption tower; The slurries and the sulfur-containing smoke gas of spray react; A part of sulfur dioxide in the flue gas is removed, and the flue gas after the processing is discharged from exhanst gas outlet A7, in flue 3 entering absorption tower B2; The slurries of absorption tower B2 bottom get into circulating line B22 through circulating pump B18; And from the last 2 ones spray equipment B23 of absorption tower B, spray, flue gas is carried out the secondary desulfurization, the flue gas after the desulfurization gets into the demister 24 at B2 top, absorption tower; Demister 24 is removed drop in the flue gas, discharges from exhanst gas outlet B17 at last.The connecting pipe 4 of slurries in the absorption tower among the B2 through the bottom is transported to slurries in the absorption tower among the A1, and slurries carry out oxidation in the A1 of absorption tower, and the slurries after the oxidation are discharged gypsum through the gypsum excavationg pump 14 of absorption tower A1.
Claims (5)
1. column in series flue gas desulfur device; It is characterized in that: comprise absorption tower A (1), absorption tower B (2), flue (3) and connecting pipe (4); The top of absorption tower A (1) is connected with the middle part of absorption tower B (2) through flue (3), and the bottom of absorption tower A (1) and absorption tower B (2) links together through connecting pipe (4).
2. column in series flue gas desulfur device according to claim 1; It is characterized in that: absorption tower A (1) comprises tower body A (5), smoke inlet A (6), exhanst gas outlet A (7), agitator A (8), oxidation fan (9) and circulating pump A (10); Smoke inlet A (6) is located at the middle part of tower body A (5); Top in the tower body A (5) is provided with spray equipment A (11); Spray equipment A (11) is connected with the end of the circulating pump A (10) that is located at tower body A (5) bottom through circulating line A (12), and the other end of circulating pump A (10) is connected with tower body A (5) bottom through pipeline; The bottom of tower body A (5) is provided with oxidation fan (9), agitator A (8) and gypsum excavationg pump (14), and exhanst gas outlet A (7) is located at the top of tower body A (5) and is connected with flue (3).
3. column in series flue gas desulfur device according to claim 1 and 2; It is characterized in that: absorption tower B (2) comprises tower body B (15), smoke inlet B (16), exhanst gas outlet B (17), circulating pump B (18), agitator B (19), slurry supply pump (20) and spray equipment B (23); Smoke inlet B (16) is located at the middle part of tower body B (15) and is connected with flue (3); Agitator B (19) and slurry supply pump (20) all are located at the bottom of tower body B (15); The end of circulating pump B (18) is connected with tower body B (15) bottom through pipeline, and the other end is connected with the spray equipment B (23) that is located at tower body B (15) internal upper part through circulating line B (22), and exhanst gas outlet B (17) is located at the top of tower body B (15).
4. column in series flue gas desulfur device according to claim 3 is characterized in that: be provided with demister (24) between exhanst gas outlet B (17) and the spray equipment B (23).
5. column in series flue gas desulfur device according to claim 1 is characterized in that: establish slurries delivery pump (25) on the connecting pipe (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120411914 CN202263522U (en) | 2011-10-25 | 2011-10-25 | Flue gas desulfurization serial-column device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120411914 CN202263522U (en) | 2011-10-25 | 2011-10-25 | Flue gas desulfurization serial-column device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202263522U true CN202263522U (en) | 2012-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120411914 Expired - Fee Related CN202263522U (en) | 2011-10-25 | 2011-10-25 | Flue gas desulfurization serial-column device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202263522U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102755830A (en) * | 2012-08-06 | 2012-10-31 | 湖南永清环保股份有限公司 | Device and method for removing high-concentration sulfur dioxide through interactive spray washing |
| CN104353338A (en) * | 2014-10-28 | 2015-02-18 | 南京大学（苏州）高新技术研究院 | Cross flow-type desulfurization device |
| CN108525499A (en) * | 2018-05-04 | 2018-09-14 | 中国神华能源股份有限公司 | Reverse spray tower and bubble tower series operation desulphurization system adjustment control method |
-
2011
- 2011-10-25 CN CN 201120411914 patent/CN202263522U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102755830A (en) * | 2012-08-06 | 2012-10-31 | 湖南永清环保股份有限公司 | Device and method for removing high-concentration sulfur dioxide through interactive spray washing |
| CN102755830B (en) * | 2012-08-06 | 2014-09-03 | 永清环保股份有限公司 | Device and method for removing high-concentration sulfur dioxide through interactive spray washing |
| CN104353338A (en) * | 2014-10-28 | 2015-02-18 | 南京大学（苏州）高新技术研究院 | Cross flow-type desulfurization device |
| CN108525499A (en) * | 2018-05-04 | 2018-09-14 | 中国神华能源股份有限公司 | Reverse spray tower and bubble tower series operation desulphurization system adjustment control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100035, B, building 5, Huadian building, No. 273 Xizhimen Main Street, Beijing, Xicheng District Patentee after: Huadian Environmental Protection System Engineering Co., Ltd. Patentee after: CHINA HUADIAN ENGINEERING CO., LTD. Address before: 100035, B, building 5, Huadian building, No. 273 Xizhimen Main Street, Beijing, Xicheng District Patentee before: Huadian Environmental Protection System Engineering Co., Ltd. Patentee before: China Huadian Engineering (Group) Co., Ltd. |
|
| 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: 20120606 Termination date: 20201025 |