CN201719971U - Absorption tower foam discharging device of limestone-plaster wet flue gas desulfurizing system - Google Patents
Absorption tower foam discharging device of limestone-plaster wet flue gas desulfurizing system Download PDFInfo
- Publication number
- CN201719971U CN201719971U CN201020250088XU CN201020250088U CN201719971U CN 201719971 U CN201719971 U CN 201719971U CN 201020250088X U CN201020250088X U CN 201020250088XU CN 201020250088 U CN201020250088 U CN 201020250088U CN 201719971 U CN201719971 U CN 201719971U
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- absorption tower
- foam
- limestone
- foam drainage
- drainage device
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Abstract
The utility model relates to an absorption tower foam discharging device of a limestone-plaster wet flue gas desulfurizing system, which comprises an absorption tower, a fan device is connected at the upper part of the side surface of the absorption tower, a foam discharging device is arranged at the highest overflow position on the absorption tower, and an exhaust pipe at the upper part of the foam discharging device is communicated with a negative pressure flue at the front part of a negative pressure device or the fan device by a pipeline. The absorption tower foam discharging device is simple in structure, a rotating equipment is not used, positive pressure is generated in the absorption tower, negative pressure is generated in the foam discharging device, and foam is easily discharged out of the absorption tower, thus avoiding a large amount of work such as replacement of serous fluid or foam treatment after shut-down of a furnace caused by excessive foam in the absorption tower, and maintaining a desulfurizing device to run safely and stably.
Description
Technical field
The utility model relates to a kind of limestone-gypsum wet method fume desulfurizing system absorption tower foam drainage device.
Background technology
Coal-fired plant boiler discharges a large amount of SO when burning at present
2, SO
2Enter atmosphere and can cause atmosphere pollution.The limestone-gypsum wet process of FGD is the most frequently used flue gas desulfurization technique in coal-burning power plant.Foam often appears in limestone-gypsum wet method fume desulfurizing system absorption tower when operation, the high-order floss hole on existing absorption tower has only overflow mechanism, and the import of overflow mechanism is designed to below the minimum operation liquid level of absorption tower, therefore be difficult for discharging absorption tower inner foam by overflow mechanism, form easily foam and pour in down a chimney and enter in the air-intake device, the equipment that influences runs well.
The gas that forms foam is mainly the CO of flue gas, oxidation air, desulfurization generation
2Deng, when boiler employing fuel ignition, combustion-supporting, the steady combustion of oil gun, during the deduster operation exception, also can produce a large amount of foams, these floatation of foam can not be eliminated even the foam that some foam such as fuel oil produce takes to add defoamer on the liquid level of absorption tower, and foam can hinder SO
3 2-Oxidation reaction, reduction desulfuration efficiency for the desulphurization system of no bypass flue, directly influence the set steady operation, need load down operation even blowing out to handle in case of necessity.
Summary of the invention
The purpose of this utility model is for overcoming above-mentioned the deficiencies in the prior art, and a kind of simple structure, easy to use, foam is discharged easily, security of operation is stable limestone-gypsum wet method fume desulfurizing system absorption tower foam drainage device are provided.
For achieving the above object, the utility model adopts following technical proposals:
A kind of limestone-gypsum wet method fume desulfurizing system absorption tower foam drainage device, comprise the absorption tower, top, side, absorption tower is connected with blower fan apparatus, be provided with the foam drainage device on the absorption tower on the highest overflow position, the blast pipe on foam drainage device top is communicated with by the negative pressure flue of pipeline with negative pressure device or blower fan apparatus front portion.
Described blower fan apparatus is booster fan or air-introduced machine.
Described foam drainage device comprises the foam drainage pipe that an end is communicated with the absorption tower, the foam drainage pipe other end be communicated with flash vessel, flash vessel upper end is provided with the blast pipe that is communicated with the intake stack of blower fan apparatus front portion, the flash vessel lower end is provided with delivery pipe.
Described blast pipe is provided with the valve I.
Described foam drainage pipe is provided with the valve II.
The utility model simple structure, no rotating machinery is malleation in the absorption tower, and the foam drainage device is a negative pressure, and foam is discharged outside the absorption tower easily, avoids keeping the desulfurizer safe and stable operation because of too much a large amount of displacement slurries of absorption tower foam or blowing out processing.
Description of drawings
Fig. 1 is the utility model structural representation;
Wherein 1. absorption towers, 2. blower fan apparatus, 3. blast pipe, 4. flash vessel, 5. foam drainage pipe, 6. delivery pipe, 7. valve I, 8. valve II.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Embodiment 1: among Fig. 1, a kind of limestone-gypsum wet method fume desulfurizing system absorption tower foam drainage device, comprise absorption tower 1, top, 1 side, absorption tower is connected with blower fan apparatus 2, be provided with the foam drainage device on the highest overflow position on the absorption tower 1, the blast pipe 3 on foam drainage device top is communicated with the negative pressure flue road of blower fan apparatus 2 front portions by pipeline.
Blower fan apparatus 2 is booster fan or air-introduced machine, is malleation in the tower during 1 operation of absorption tower.
The foam drainage device comprises the foam drainage pipe 5 that an end is communicated with absorption tower 1, foam drainage pipe 5 other ends are communicated with flash vessel 4, flash vessel 4 upper ends are provided with the blast pipe 3 that is communicated with the negative pressure flue of blower fan apparatus 2 front portions, blast pipe 5 is installed and is higher than on 1 overflow position of absorption tower, and flash vessel 4 lower ends are provided with delivery pipe 6.Blast pipe 3 inserts the negative pressure flue, prevents that pernicious gas from entering the atmosphere pollution environment.
Flash vessel 4 can reduce flow velocity, prevents that foam from entering flue from blast pipe 3; The foam that enters flash vessel 4 enters the foam collecting pit by gravity from delivery pipe 6 and focuses on.
The utility model simple structure, no rotating machinery is a malleation in the absorption tower 1, and the foam drainage device is a negative pressure, and foam is discharged outside the absorption tower 1 easily, avoids keeping the desulfurizer safe and stable operation because of too much a large amount of displacement slurries of absorption tower 1 foam or blowing out processing.
Embodiment 2: as shown in Figure 2, as different from Example 1, blast pipe 3 links to each other with existing negative pressure device, blast pipe 3 is provided with valve I 7, and foam drainage pipe 5 is provided with valve II 8, during non-foam valve I 7 and valve II 8 is closed, when foam is arranged valve II 8 is opened, adjust valve I 7 to suitable aperture, the pernicious gas of taking out of during with row's foam is introduced in the flue, prevents contaminated environment.
Claims (5)
1. limestone-gypsum wet method fume desulfurizing system absorption tower foam drainage device, comprise the absorption tower, it is characterized in that: top, side, absorption tower is connected with blower fan apparatus, be provided with the foam drainage device on the absorption tower on the highest overflow position, the blast pipe on foam drainage device top is communicated with the negative pressure flue road of negative pressure device or blower fan apparatus front portion by pipeline.
2. limestone-gypsum wet method fume desulfurizing system according to claim 1 absorption tower foam drainage device, it is characterized in that: described blower fan apparatus is booster fan or air-introduced machine.
3. limestone-gypsum wet method fume desulfurizing system according to claim 1 absorption tower foam drainage device, it is characterized in that: described foam drainage device comprises the foam drainage pipe that an end is communicated with the absorption tower, the foam drainage pipe other end is communicated with flash vessel, the flash vessel upper end is provided with the blast pipe that is communicated with the intake stack of blower fan apparatus front portion, and the flash vessel lower end is provided with delivery pipe.
4. limestone-gypsum wet method fume desulfurizing system according to claim 3 absorption tower foam drainage device, it is characterized in that: described blast pipe is provided with the valve I.
5. limestone-gypsum wet method fume desulfurizing system according to claim 3 absorption tower foam drainage device, it is characterized in that: described foam drainage pipe is provided with the valve II.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020250088XU CN201719971U (en) | 2010-07-07 | 2010-07-07 | Absorption tower foam discharging device of limestone-plaster wet flue gas desulfurizing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020250088XU CN201719971U (en) | 2010-07-07 | 2010-07-07 | Absorption tower foam discharging device of limestone-plaster wet flue gas desulfurizing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201719971U true CN201719971U (en) | 2011-01-26 |
Family
ID=43488245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020250088XU Expired - Fee Related CN201719971U (en) | 2010-07-07 | 2010-07-07 | Absorption tower foam discharging device of limestone-plaster wet flue gas desulfurizing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201719971U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103599690A (en) * | 2013-11-12 | 2014-02-26 | 山东中实易通集团有限公司 | Composite limestone/calcium hydroxide gypsum wet desulfurization device and technique |
| CN112221306A (en) * | 2020-07-31 | 2021-01-15 | 扬州海通电子科技有限公司 | Plate tower absorption acid making device and method for starch factory |
| CN113509752A (en) * | 2020-04-09 | 2021-10-19 | 国家电投集团远达环保工程有限公司重庆科技分公司 | Foam separating device of flue gas desulfurization absorption tower |
-
2010
- 2010-07-07 CN CN201020250088XU patent/CN201719971U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103599690A (en) * | 2013-11-12 | 2014-02-26 | 山东中实易通集团有限公司 | Composite limestone/calcium hydroxide gypsum wet desulfurization device and technique |
| CN113509752A (en) * | 2020-04-09 | 2021-10-19 | 国家电投集团远达环保工程有限公司重庆科技分公司 | Foam separating device of flue gas desulfurization absorption tower |
| CN113509752B (en) * | 2020-04-09 | 2023-10-20 | 国家电投集团远达环保工程有限公司重庆科技分公司 | Foam separation device of flue gas desulfurization absorption tower |
| CN112221306A (en) * | 2020-07-31 | 2021-01-15 | 扬州海通电子科技有限公司 | Plate tower absorption acid making device and method for starch factory |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20110126 Termination date: 20170707 |