CN202638268U - Desulfurizing tower with serially arranged oxidation ditch and desulfurizing system using desulfurizing tower - Google Patents
Desulfurizing tower with serially arranged oxidation ditch and desulfurizing system using desulfurizing tower Download PDFInfo
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- CN202638268U CN202638268U CN201220311305.0U CN201220311305U CN202638268U CN 202638268 U CN202638268 U CN 202638268U CN 201220311305 U CN201220311305 U CN 201220311305U CN 202638268 U CN202638268 U CN 202638268U
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- tower
- desulfurizing
- desulfurization
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Abstract
The utility model discloses a desulfurizing tower with a serially arranged oxidation ditch. The desulfurizing tower comprises a desulfurizing front tower and a desulfurizing rear tower, wherein a smoke outlet of the desulfurizing front tower is communicated with a smoke inlet of the desulfurizing rear tower; and lower slurry outlets of the desulfurizing front tower and the desulfurizing rear tower are communicated through the oxidation ditches. The utility model also discloses a desulfurizing system which comprises the desulfurizing towers with the serially arranged oxidation ditches, a first slurry circulating pump, a first oxidation air pipe, a second slurry circulating pump, a second oxidation air pipe, an oxidation air blower and a slurry discharge pump. According to the desulfurizing tower with the serially arranged oxidation ditch and the desulfurizing system using the desulfurizing tower, the bottoms of two desulfurizing towers are communicated through the oxidation ditches, and water and a substance which get in and out of the desulfurizing towers are converged in the oxidation ditches, so that balance of the water and the substance of the desulfurizing system and a single desulfurizing tower can be extremely easily controlled by adjusting slurry in the oxidation ditches, the control is simple, SO2 in smoke is absorbed through two serially connected desulfurizing towers, and the desulfurizing efficiency is high.
Description
Technical field
The utility model relates to a kind of flue gas purifying equipment, particularly a kind of desulfurizing tower and desulphurization system.
Background technology
Coal fired power generation is one of main path of coal utilization, and fossil-fired unit need discharge a large amount of pollutants, wherein SO
2And dust is comparatively serious to the harm of environment, also is the major pollutants that need priority control.Thereby, need to desulphurization system be set at the fume emission place of coal fired power generation.Flue gas desulfurization technique comprises wet desulphurization and dry desulfurization etc., and wherein the utilization of Wet Flue Gas Desulfurization Technique is the most extensive.The principle of wet flue gas desulfurization absorption tower is to utilize the lime stone alkaline slurry to spray from the top down, and flue gas flows from bottom to top, and lime stone slurry drops in the SO that absorbs in the dropping process in the flue gas
2, generate the byproducts such as gypsum, reach the SO that removes in the flue gas
2Purpose.
In wet desulfurizing process, the requirement of discharging has more and more stricter trend, because China is vast in territory, very high such as the coal sulfur content of southwest, this all requires desulfuration absorbing tower that very high desulfurization rate is arranged simultaneously; And present domestic or external the arranging of technology spraying layer of spray column at most all only has 6 layers, if increase spraying layer, improves the uptake zone again, although the dissolving of sulfur dioxide can be strengthened, but the dissolving of lime stone does not catch up with, and cost and power consumption increase a lot, and the effect of desulfurization but improves not obvious; For reaching high desulfurization degree, the series connection of two single towers of circular tower has appearred.
In the prior art, the slurry pool of two desulfurizing towers of series connection minute is arranged, yet for single desulfurizing tower and whole desulphurization system, all must accomplish the balance of water and material, otherwise, when water and material imbalance, just may cause the accumulation of material, cause desulphurization system to break down, perhaps cause the desulfuration efficiency of desulphurization system to reduce.The desulfurizing tower that order the first two series connection arranges, two slurry pools that its minute is arranged are that desulfurizing tower system operation energy consumption is higher by slush pump and pipeline UNICOM, and are difficult to the balance that control system and single desulfurizing tower reach water and material.
Therefore, need to improve series connection desulfurizing tower of the prior art, so that desulfurizing tower and the easier balance that reaches water and material of desulphurization system energy improve desulfuration efficiency.
The utility model content
In view of this, the purpose of this utility model provides a kind of desulfurizing tower of oxidation ditch arranged in series and uses the desulphurization system of this desulfurizing tower, and it can make desulfurizing tower and desulphurization system be easy to reach the balance of water and material, and improves desulfuration efficiency.The desulfurizing tower of the utility model oxidation ditch arranged in series and use the concrete scheme of the desulphurization system of this desulfurizing tower to be:
The desulfurizing tower of the utility model oxidation ditch arranged in series comprises before the desulfurization tower behind the tower and desulfurization, before the desulfurization after the exhanst gas outlet of tower and the desulfurization gas approach of tower be communicated with, before the desulfurization after tower and the desulfurization bottom slurries outlet of tower be communicated with by oxidation ditch.
Further, the exhanst gas outlet of tower is arranged at the top of tower before the described desulfurization, and the smoke inlet of tower is arranged at the middle part of tower before the desulfurization; The smoke inlet of tower is arranged at the top of tower after the described desulfurization, and the exhanst gas outlet of tower is arranged at the middle part of tower after the desulfurization;
Further, be provided with spraying layer A in the middle part of tower before the described desulfurization, be provided with spraying layer B after the described desulfurization in the middle part of tower;
Further, the top of described spraying layer A is provided with tubular demister, and the top of described spraying layer B is provided with the ridge type demister;
Further, the nozzle of described spraying layer A spray direction is downward, and the nozzle spray direction of described spraying layer B upwards;
Further, described spraying layer A and spraying layer B are respectively 2 to 6 layers;
Further, tower is circular tower after the front tower of described desulfurization and the desulfurization;
Further, described oxidation ditch is straight trough or U-shaped bending groove;
Further, described oxidation ditch middle part is provided with the dividing plate along its longitudinal extension, described dividing plate is separated into the first slurry channels and the second slurry channels with oxidation ditch, the end UNICOM of the first slurry channels and the second slurry channels forms the slurries runner of circulation, be provided with the first underwater propeller in described the first slurry channels, be provided with the second underwater propeller in described the second slurry channels.
The utility model uses the desulphurization system of the desulfurizing tower of aforementioned oxidation ditch arranged in series, the desulfurizing tower that comprises the oxidation ditch arranged in series also comprises the first slurry circulating pump, the first oxidation air pipe, the second slurry circulating pump, the second oxidation air pipe, oxidation fan and slurry pump;
The import of described the first slurry circulating pump is arranged in the first slurry channels, and the outlet of the first slurry circulating pump and spraying layer A are communicated with, and the import of described the second slurry circulating pump is arranged in the second slurry channels, and the outlet of the second slurry circulating pump and spraying layer B are communicated with;
Described the first oxidation air pipe is arranged in the first slurry channels, and described the second oxidation air pipe is arranged in the second slurry channels, and the exhaust outlet of described oxidation fan is communicated with the first oxidation air pipe and the second oxidation air pipe respectively;
The import of described slurry pump is arranged at the first slurry channels or/and in the second slurry channels.
The beneficial effects of the utility model: the desulfurizing tower of the utility model oxidation ditch arranged in series and use the desulphurization system of this desulfurizing tower, the bottom of two desulfurizing towers is communicated with by oxidation ditch, water and the material of turnover desulfurizing tower converge in oxidation ditch, therefore by in oxidation ditch, regulating slurries, can control easily water and the material balance of desulphurization system and single desulfurizing tower, control is simple, and by the SO in the desulfurizing tower absorption flue gas of two series connection
2, desulfuration efficiency is high.
Description of drawings
Fig. 1 is that the utility model oxidation ditch is the desulfurizing tower of straight trough and the structural representation that uses the desulphurization system of this desulfurizing tower;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is that the utility model oxidation ditch is the desulfurizing tower of U-shaped bending groove and the structural representation that uses the desulphurization system of this desulfurizing tower.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described.
As shown in the figure, the desulfurizing tower of the present embodiment oxidation ditch arranged in series, comprise before the desulfurization tower 2 behind the tower 1 and desulfurization, before the desulfurization after the exhanst gas outlet of tower 1 and the desulfurization gas approach of tower 2 be communicated with, before the desulfurization after tower 1 and the desulfurization bottom slurries outlet of tower 2 be communicated with by oxidation ditch 3.
In the present embodiment, the bottom of tower 2 is communicated with by oxidation ditch after the front tower 1 of desulfurization and the desulfurization, water and the material of turnover desulfurizing tower converge in oxidation ditch 3, therefore by in oxidation ditch, regulating slurries, can control easily water and the material balance of desulphurization system and single desulfurizing tower, control is simple, and by the SO in the desulfurizing tower absorption flue gas of two series connection
2, desulfuration efficiency is high.
In implementation, before the desulfurization after tower 1 and the desulfurization tower 2 by basis, oxidation ditch edge be erected at the two ends that brace summer on the oxidation ditch is fixed on oxidation ditch 3.
In the present embodiment, the exhanst gas outlet 1a of tower 1 is arranged at the top of tower before the described desulfurization, and the smoke inlet 1b of tower is arranged at the middle part of tower before the desulfurization; The smoke inlet 2a of tower 2 is arranged at the top of tower after the described desulfurization, and the exhanst gas outlet 2b of tower 2 is arranged at the middle part of tower after the desulfurization, and the flue gas entry and exit of desulfurizing tower arrange the structure of position and tower to adaptation in this structure; Certainly in different embodiments, the flue gas entry and exit setting position of desulfurizing tower also can be adjusted as required.
In the present embodiment, be provided with spraying layer A4 in the middle part of tower 1 before the described desulfurization, be provided with spraying layer B5 after the described desulfurization in the middle part of tower 2, spraying layer is used for the SO that the ejection lime stone slurry absorbs flue gas
2
As the improvement to the present embodiment, the top of described spraying layer A4 is provided with tubular demister 6, and the top of described spraying layer B5 is provided with ridge type demister 7, and flue gas is got rid of desulfurizing tower again after demist, can save system's water consumption; Certainly in the situation that desulfurizing tower is provided with demister, need set up drainage system on the desulfurizing tower.
As to further improvement of this embodiment, the nozzle spray direction of described spraying layer A4 is downward, the nozzle spray direction of described spraying layer B5 upwards, this set-up mode makes the moving direction of the emission direction of slurries and flue gas opposite, tower 1 just is countercurrent absorber before the desulfurization, tower 2 just is contrary following current absorption tower after the desulfurization, can improve desulfuration efficiency.
In the present embodiment, described spraying layer A and spraying layer B are respectively 3 layers, and spraying layer is more, and desulfuration efficiency is higher; Certainly in different embodiments, the quantity of spraying layer can specifically be adjusted as required, the spraying layer quantity of desulfurizing tower be set to 2 to 6 layers comparatively suitable.
As to further improvement of this embodiment, tower 2 is circular tower after the front tower 1 of described desulfurization and the desulfurization, and circular tower flue gas resistance in service is less, and the flue gas operation is smooth and easy.
In the present embodiment, described oxidation ditch 3 is straight trough, and is simple in structure, and slurries flow smooth and easy.Certainly in different embodiments, oxidation ditch 3 also can be U-shaped bending groove or other shape, and when oxidation ditch was U-shaped bending groove, the distance of 2 in tower was shorter after the front tower 1 of desulfurization and the desulfurization, is convenient to arrange the structures such as pipeline that connect two desulfurizing towers.
As to further improvement of this embodiment, described oxidation ditch 3 middle parts are provided with the dividing plate 8 along its longitudinal extension, described dividing plate 8 is separated into the first slurry channels 9 and the second slurry channels 10 with oxidation ditch 3, the end UNICOM of the first slurry channels 9 and the second slurry channels 10 forms the slurries runner of circulation, be provided with the first underwater propeller 11 in described the first slurry channels 9, be provided with the second underwater propeller 12 in described the second slurry channels 10, promoting slurries by underwater propeller circulates along the slurries runner, can make slurry content even, be conducive to improve desulfuration efficiency.
The utility model uses the desulphurization system of the desulfurizing tower of the described oxidation ditch arranged in series of previous embodiment, the desulfurizing tower that comprises the oxidation ditch arranged in series also comprises the first slurry circulating pump 13, the first oxidation air pipe 14, the second slurry circulating pump 15, the second oxidation air pipe 16, oxidation fan 17 and slurry pump 18;
The import of described the first slurry circulating pump 13 is arranged in the first slurry channels 9, the outlet of the first slurry circulating pump 13 and spraying layer A4 are communicated with, the import of described the second slurry circulating pump 15 is arranged in the second slurry channels 10, and the outlet of the second slurry circulating pump 15 and spraying layer B5 are communicated with;
Described the first oxidation air pipe 14 is arranged in the first slurry channels 9, and described the second oxidation air pipe 16 is arranged in the second slurry channels 10, and the exhaust outlet of described oxidation fan 17 is communicated with the first oxidation air pipe 14 and the second oxidation air pipe 16 respectively;
The import of described slurry pump 18 is arranged in the first slurry channels 9 and the second slurry channels 10, certainly in different embodiments, the import of described slurry pump 18 also can only be arranged in the first slurry channels 9 or the second slurry channels 10, and slurry pump 18 is used for the calcium plaster that system generates is got rid of to dewatering system.
Explanation is at last, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (10)
1. the desulfurizing tower of an oxidation ditch arranged in series is characterized in that: comprise before the desulfurization tower behind the tower and desulfurization, before the desulfurization after the exhanst gas outlet of tower and the desulfurization gas approach of tower be communicated with, before the desulfurization after tower and the desulfurization bottom slurries outlet of tower be communicated with by oxidation ditch.
2. the desulfurizing tower of oxidation ditch arranged in series according to claim 1 is characterized in that: the exhanst gas outlet of tower is arranged at the top of tower before the described desulfurization, and the smoke inlet of tower is arranged at the middle part of tower before the desulfurization; The smoke inlet of tower is arranged at the top of tower after the described desulfurization, and the exhanst gas outlet of tower is arranged at the middle part of tower after the desulfurization.
3. the desulfurizing tower of oxidation ditch arranged in series according to claim 2 is characterized in that: be provided with spraying layer A in the middle part of tower before the described desulfurization, be provided with spraying layer B after the described desulfurization in the middle part of tower.
4. the desulfurizing tower of oxidation ditch arranged in series according to claim 3, it is characterized in that: the top of described spraying layer A is provided with tubular demister, and the top of described spraying layer B is provided with the ridge type demister.
5. the desulfurizing tower of oxidation ditch arranged in series according to claim 4 is characterized in that: the nozzle spray direction of described spraying layer A is downward, and the nozzle spray direction of described spraying layer B upwards.
6. the desulfurizing tower of oxidation ditch arranged in series according to claim 5, it is characterized in that: described spraying layer A and spraying layer B are respectively 2 to 6 layers.
7. the desulfurizing tower of oxidation ditch arranged in series according to claim 6, it is characterized in that: tower is circular tower after the front tower of described desulfurization and the desulfurization.
8. the desulfurizing tower of oxidation ditch arranged in series according to claim 1, it is characterized in that: described oxidation ditch is straight trough or U-shaped bending groove.
9. the desulfurizing tower of arbitrary described oxidation ditch arranged in series according to claim 1-8, it is characterized in that: described oxidation ditch middle part is provided with the dividing plate along its longitudinal extension, described dividing plate is separated into the first slurry channels and the second slurry channels with oxidation ditch, the end UNICOM of the first slurry channels and the second slurry channels forms the slurries runner of circulation, be provided with the first underwater propeller in described the first slurry channels, be provided with the second underwater propeller in described the second slurry channels.
10. a right to use requires the desulphurization system of the desulfurizing tower of 9 described oxidation ditch arranged in series, it is characterized in that: comprise the desulfurizing tower of oxidation ditch arranged in series, also comprise the first slurry circulating pump, the first oxidation air pipe, the second slurry circulating pump, the second oxidation air pipe, oxidation fan and slurry pump;
The import of described the first slurry circulating pump is arranged in the first slurry channels, and the outlet of the first slurry circulating pump and spraying layer A are communicated with, and the import of described the second slurry circulating pump is arranged in the second slurry channels, and the outlet of the second slurry circulating pump and spraying layer B are communicated with;
Described the first oxidation air pipe is arranged in the first slurry channels, and described the second oxidation air pipe is arranged in the second slurry channels, and the exhaust outlet of described oxidation fan is communicated with the first oxidation air pipe and the second oxidation air pipe respectively;
The import of described slurry pump is arranged at the first slurry channels or/and in the second slurry channels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220311305.0U CN202638268U (en) | 2012-06-29 | 2012-06-29 | Desulfurizing tower with serially arranged oxidation ditch and desulfurizing system using desulfurizing tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220311305.0U CN202638268U (en) | 2012-06-29 | 2012-06-29 | Desulfurizing tower with serially arranged oxidation ditch and desulfurizing system using desulfurizing tower |
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| Publication Number | Publication Date |
|---|---|
| CN202638268U true CN202638268U (en) | 2013-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220311305.0U Withdrawn - After Issue CN202638268U (en) | 2012-06-29 | 2012-06-29 | Desulfurizing tower with serially arranged oxidation ditch and desulfurizing system using desulfurizing tower |
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| Country | Link |
|---|---|
| CN (1) | CN202638268U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102716659A (en) * | 2012-06-29 | 2012-10-10 | 中电投远达环保工程有限公司 | Oxidation ditch tandem arranged desulfurization tower and desulfurization system using desulfurization tower |
| CN108837685A (en) * | 2018-07-26 | 2018-11-20 | 广东新生环保科技股份有限公司 | A kind of desulfurization end-o f-pipe -control purification device |
-
2012
- 2012-06-29 CN CN201220311305.0U patent/CN202638268U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102716659A (en) * | 2012-06-29 | 2012-10-10 | 中电投远达环保工程有限公司 | Oxidation ditch tandem arranged desulfurization tower and desulfurization system using desulfurization tower |
| CN108837685A (en) * | 2018-07-26 | 2018-11-20 | 广东新生环保科技股份有限公司 | A kind of desulfurization end-o f-pipe -control purification device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130102 Effective date of abandoning: 20140312 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20130102 Effective date of abandoning: 20140312 |