CN202263523U - Novel desulfurizing tower with external slurry tank - Google Patents
Novel desulfurizing tower with external slurry tank Download PDFInfo
- Publication number
- CN202263523U CN202263523U CN 201120412011 CN201120412011U CN202263523U CN 202263523 U CN202263523 U CN 202263523U CN 201120412011 CN201120412011 CN 201120412011 CN 201120412011 U CN201120412011 U CN 201120412011U CN 202263523 U CN202263523 U CN 202263523U
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- CN
- China
- Prior art keywords
- tower
- stock tank
- absorption tower
- spray equipment
- circulating pump
- 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
- 230000003009 desulfurizing effect Effects 0.000 title claims abstract description 22
- 239000002002 slurry Substances 0.000 title abstract description 13
- 238000010521 absorption reaction Methods 0.000 claims description 51
- 239000007921 spray Substances 0.000 claims description 27
- 238000007254 oxidation reaction Methods 0.000 claims description 9
- 238000013459 approach Methods 0.000 claims description 8
- 229910052602 gypsum Inorganic materials 0.000 claims description 7
- 239000010440 gypsum Substances 0.000 claims description 7
- 230000003647 oxidation Effects 0.000 claims description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 16
- 239000003546 flue gas Substances 0.000 abstract description 16
- 238000005507 spraying Methods 0.000 abstract description 8
- 238000013461 design Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 abstract 2
- 239000007789 gas Substances 0.000 description 13
- 238000006477 desulfuration reaction Methods 0.000 description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 5
- 229910052717 sulfur Inorganic materials 0.000 description 5
- 239000011593 sulfur Substances 0.000 description 5
- 230000023556 desulfurization Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- -1 this Chemical compound 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model discloses a novel desulfurizing tower with an external slurry tank, which comprises an absorbing tower (1), a spraying device A (2), a flue gas inlet (3), a flue gas outlet (4) and a circulating pump A (5). The flue gas inlet (3) is arranged in the middle of the absorbing tower (1), the flue gas outlet (4) is arranged at the top end of the absorbing tower (1), the spraying device A (2) is arranged on the upper portion of the inside of the absorbing tower (1) and is connected with the circulating pump A (5) at the bottom of the absorbing tower (1) through a connecting pipeline, a spraying device B (6) is arranged above the spraying device A (2), the middle lower portion of the absorbing tower (1) is connected with the upper portion of the external slurry tank (8) through a communicating pipe (7), and a circulating pump B (9) is arranged at the bottom of the external slurry tank (8), and is connected with the spraying device B (6) through a connecting pipeline. The novel desulfurizing tower with the external slurry tank can remove sulfur dioxide in flue gas effectively so that treated flue gas can meet emission standards. Besides, the novel desulfurizing tower with the external slurry tank is simple in structure, reasonable in design and lowered in investment and manufacturing cost.
Description
Technical field
The utility model relates to a kind of fume desulfurizing tower, particularly a kind of novel desulfurizing tower that is provided with the outer stock tank of tower.
Background technology
At present, the existing overwhelming majority of coal-burning power plant of China has installed desulfurizer, and 300MW and above unit have basically all adopted the limestone-gypsum wet desulfurizing process.Along with new discharge standard is issued, the SO2 discharge standard is further strict in the coal-fired plant flue gas, and the sulfur content of adding the actual fire coal of power plant is generally bigger than normal than the sulfur content of desulfurizer design fire coal.In the face of the further raising of desulfuration efficiency, the raising of coal-fired sulfur content, next stage, the necessary existing desulfurizer of capacity-increasing transformation of most of power plant desulfurizations satisfies environmental requirement.
Generally, can adopt following several method to transform:
Scheme one: increase spraying layer, can between original absorption tower spraying layer the superiors and demister layer, increase spraying layer; Increase the absorption tower volume, common employing is increased stock tank part tower body and is realized.But this way also is not suitable for all power plant, exceeds the bearing capacity of ground when the part of the stock tank that increases.This scheme is just infeasible.
Scheme two: remove former absorption tower and build new absorption tower, though this scheme can solve desulphurization problem, build a new absorption tower, equipment such as original oxidation fan, circulating pump, agitator all can't use, and cause the wasting of resources.
Scheme three: new absorption tower of series connection on former absorption tower, though this scheme can the past heritage utilization, need a newly-built absorption tower, increase the flue of length, improvement cost is still higher.
The utility model content
The purpose of the utility model is; A kind of novel desulfurizing tower that is provided with the outer stock tank of tower is provided; It not only can effectively remove sulfur in smoke and sulfur trioxide, makes the flue gas allow compliance with emission standards after the processing, and has simple in structure, reasonable in design and advantage of low manufacturing cost; And can effectively carry out twice laid, reduce the wasting of resources.
The technical scheme of the utility model: a kind of novel desulfurizing tower that is provided with the outer stock tank of tower; Comprise absorption tower tower body, spray equipment A, gas approach, exhanst gas outlet and circulating pump A, gas approach is located at the middle part of absorption tower tower body, and exhanst gas outlet is located at the top of absorption tower tower body; Spray equipment A is located at the top in the tower body of absorption tower; And is connected with the circulating pump A that is located at tower body bottom, absorption tower through connecting pipeline, the top of spray equipment A is provided with spray equipment B, and the middle and lower part of absorption tower tower body is passed through cross over pipe and is connected on the top of stock tank outward with tower; The bottom of the outer stock tank of tower is provided with circulating pump B, and circulating pump B is connected with spray equipment B through connecting pipeline.Because other stock tank outside the construction tower tower outside, so not only increased the absorption tower volume but also can not receive the constraint of original absorption tower ground bearing load.Therefore this remodeling method is applicable to all desulfurization transformation projects.Owing to increased spray equipment B, more slurries can fully be contacted with flue gas, improve the desulfuration efficiency of flue gas.
In the aforesaid novel desulfurizing tower that is provided with the outer stock tank of tower, the top of spray equipment B is provided with demister in the tower body of absorption tower, and demister can be removed the moisture in the flue gas.
In the aforesaid novel desulfurizing tower that is provided with the outer stock tank of tower, the bottom of absorption tower tower body also is provided with oxidation fan A, agitator A and gypsum excavationg pump.
In the aforesaid novel desulfurizing tower that is provided with the outer stock tank of tower, the bottom of the outer stock tank of tower also is provided with oxidation fan B and agitator B.
In the aforesaid novel desulfurizing tower that is provided with the outer stock tank of tower; Being shaped as of cross over pipe is tubaeform; The top of cross over pipe is parallel with horizontal plane; Pressure, the liquid level in the outer stock tank of stock tank and tower is consistent in the absorption tower in order to make, and 1/3 part in cross over pipe cross section need exceed stock tank and the tower normal liquid level of stock tank outward on the absorption tower in.The bottom be ramped shaped and gradient i greater than 10%, absorption tower and the tower deposition of the cross over pipe of stock tank outward in order to prevent to shut down.
In the aforesaid novel desulfurizing tower that is provided with the outer stock tank of tower, the bigger end of cross over pipe caliber and tower stock tank outward are connected.
Compared with prior art,, increased liquid-gas ratio in the absorption tower like this, improved desulfuration efficiency, made the flue gas after the desulfurization meet new discharge standard because the utility model set up spray equipment B in the tower body of absorption tower.Owing to outside the absorption tower, set up stock tank outside the tower; Effectively enlarged the volume of stock tank; Weight surpasses the limiting value that ground can bear after adopting this set can prevent on the one hand to transform former absorption tower; Can effectively solve the little situation of absorption tower stock tank volume for newly-increased spray equipment B provides slurries on the other hand.
Because the utility model is on former absorption tower, to transform, therefore the equipment on the former absorption tower all can continue to use, and has made full use of source material like this, has prevented the wasting of resources.Built the outer stock tank of a tower owing to only increase, more much lower than the construction cost on a new absorption tower of series connection.But also have simple in structurely, make and the low advantage of maintenance cost.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Being labeled as in the accompanying drawing: 1-absorption tower tower body, 2-spray equipment A, 3-gas approach, 4-exhanst gas outlet; 5-circulating pump A, 6-spray equipment B, 7-cross over pipe, the outer stock tank of 8-tower; 9-circulating pump B, 10-demister, 11-oxidation fan A, 13-agitator B; 12-agitator A, 14-gypsum excavationg pump, 15-oxidation fan B.
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 novel desulfurizing tower that is provided with the outer stock tank of tower; Comprise absorption tower tower body 1, spray equipment A2, gas approach 3, exhanst gas outlet 4 and circulating pump A5, gas approach 3 is located at the middle part of absorption tower tower body 1, and exhanst gas outlet 4 is located at the top of absorption tower tower body 1; Spray equipment A2 is located at the top in the absorption tower tower body 1; And is connected with the circulating pump A5 that is located at absorption tower tower body 1 bottom through connecting pipeline, the top of spray equipment A2 is provided with spray equipment B6, and the middle and lower part of absorption tower tower body 1 is passed through cross over pipe 7 and is connected on the top of stock tank 8 outward with tower; The bottom of the outer stock tank 8 of tower is provided with circulating pump B9, and circulating pump B9 is connected with spray equipment B6 through connecting pipeline.The top of spray equipment B6 is provided with demister 10 in the absorption tower tower body 1.The bottom of absorption tower tower body 1 also is provided with oxidation fan A11, agitator A12 and gypsum excavationg pump 14.The bottom of the outer stock tank 8 of tower also is provided with oxidation fan B15 and agitator B13.
Being shaped as of cross over pipe 7 is tubaeform, and the top of cross over pipe 7 is parallel with horizontal plane, and the bottom is that ramped shaped and gradient i are greater than 10%.The end that cross over pipe 7 calibers are bigger is connected with the outer stock tank 8 of tower.
Operation principle: because absorption tower tower body 1 links together through cross over pipe 7 with the outer stock tank 8 of tower, so absorption tower tower body 1 is identical with slurries liquid level in the outer stock tank 8 of tower, and flue gas passes through flue in gas approach 3 entering absorption tower tower bodies 1.Circulating pump A5 extracts the slurries in the stock tank in the absorption tower tower body 1 out and sprays through spray equipment A2; Circulating pump B9 extracts the slurries in the outer stock tank 8 of tower out and sprays through spray equipment B6; Have more slurries to contact with flue gas like this, sulfur in smoke is removed, and flue gas gets into demister 10 then; In demister 10, remove drop, last clean flue gas is discharged through exhanst gas outlet 4.The gypsum that produces behind slurries and the smoke reaction is discharged through the gypsum excavationg pump 14 of absorption tower tower body 1.
Claims (6)
1. one kind is provided with the tower novel desulfurizing tower of stock tank outward; Comprise absorption tower tower body (1), spray equipment A (2), gas approach (3), exhanst gas outlet (4) and circulating pump A (5); Gas approach (3) is located at the middle part of absorption tower tower body (1); Exhanst gas outlet (4) is located at the top of absorption tower tower body (1), and spray equipment A (2) is located at the top in the absorption tower tower body (1), and is connected with the circulating pump A (5) that is located at absorption tower tower body (1) bottom through connecting pipeline; It is characterized in that: the top of spray equipment A (2) is provided with spray equipment B (6); The middle and lower part of absorption tower tower body (1) is connected through the top of cross over pipe (7) with the outer stock tank (8) of tower, and the bottom of the outer stock tank (8) of tower is provided with circulating pump B (9), and circulating pump B (9) is connected with spray equipment B (6) through connecting pipeline.
2. the novel desulfurizing tower that is provided with the outer stock tank of tower according to claim 1, it is characterized in that: the top of the interior spray equipment B of absorption tower tower body (1) (6) is provided with demister (10).
3. the novel desulfurizing tower that is provided with the outer stock tank of tower according to claim 1, it is characterized in that: the bottom of absorption tower tower body (1) also is provided with oxidation fan A (11), agitator A (12) and gypsum excavationg pump (14).
4. the novel desulfurizing tower that is provided with the outer stock tank of tower according to claim 1 is characterized in that: the bottom of the outer stock tank (8) of tower also is provided with oxidation fan B (15) and agitator B (13).
5. the novel desulfurizing tower that is provided with the outer stock tank of tower according to claim 1, it is characterized in that: being shaped as of cross over pipe (7) is tubaeform, and the top of cross over pipe (7) is parallel with horizontal plane, and the bottom is that ramped shaped and gradient i are greater than 10%.
6. the novel desulfurizing tower that is provided with the outer stock tank of tower according to claim 5 is characterized in that: the end that cross over pipe (7) caliber is bigger is connected with the outer stock tank (8) of tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120412011 CN202263523U (en) | 2011-10-25 | 2011-10-25 | Novel desulfurizing tower with external slurry tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120412011 CN202263523U (en) | 2011-10-25 | 2011-10-25 | Novel desulfurizing tower with external slurry tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202263523U true CN202263523U (en) | 2012-06-06 |
Family
ID=46154334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120412011 Expired - Fee Related CN202263523U (en) | 2011-10-25 | 2011-10-25 | Novel desulfurizing tower with external slurry tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202263523U (en) |
-
2011
- 2011-10-25 CN CN 201120412011 patent/CN202263523U/en not_active Expired - Fee Related
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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 |