CN105664703A - Absorption tower two-stage stirrer device - Google Patents
Absorption tower two-stage stirrer device Download PDFInfo
- Publication number
- CN105664703A CN105664703A CN201610086160.1A CN201610086160A CN105664703A CN 105664703 A CN105664703 A CN 105664703A CN 201610086160 A CN201610086160 A CN 201610086160A CN 105664703 A CN105664703 A CN 105664703A
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- Prior art keywords
- absorption tower
- stage
- slurry tank
- mixer
- twin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/504—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/96—Regeneration, reactivation or recycling of reactants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
Abstract
The invention relates to an absorption tower two-stage stirrer device, and belongs to the field of flue gas desulfurization. The absorption tower two-stage stirrer device is arranged inside a slurry tank and comprises two one-stage stirrers and two two-stage stirrers which are all arranged on the middle lower portion of the inner wall of the slurry tank and evenly distributed along the inner wall of the slurry tank for a circle, and the two-stage stirrers are located above the one-stage stirrers; the one-stage stirrers and the two-stage stirrers are each provided with a stirring motor which is arranged outside an absorption tower, a stirring shaft which is connected with the stirring motor and blades arranged at the bottom end of the stirring shaft. In a flue gas desulfurization ultra-low emission technical innovation project, the absorption tower two-stage stirrer device enables gypsum crystals not to be precipitated at the bottom of the absorption tower, an absorption tower circulating pump filter screen cannot be blocked, and slurry circulating is normal.
Description
Technical field
The present invention relates to a kind of absorption tower twin-stage agitator device, belong to flue gas desulfurization technique field.
Background technology
Along with China's economic development, electricity needs continues to increase, haze long lasting effect, controls PM2.5 and refer to agenda. Local government, electric power enterprise propose one after another " minimum discharge ", " near-zero release ", " reaching combustion engine discharge standard " construction or transformation requirement. " minimum discharge " technology, scientific guidance Thermal Power Generation Industry sustainable development ultra-clean is discharged.
State Development and Reform Commission prints and distributes " coal electricity energy-saving and emission-reduction upgrading and transformation action plan (2014-2020) " Air Pollutant Emission of keeping under strict control. Newly-built Thermal generation unit (is contained in and builds the unit having included country's construction of fire and electricity planning with project in) answers synchronized construction advanced person's high-efficiency desulfurization, denitration and dust removal installation, must not arrange gas bypass passage. Eastern region (11 provinces and cities such as Liaoning, Beijing, Tianjin, Hebei, Shandong, Shanghai, Jiangsu, Zhejiang, Fujian, Guangdong, Hainan) newly-built Thermal generation unit Air Pollutant Emission concentration basically reaches gas turbine group emission limit (namely under benchmark oxygen content 6% condition, flue dust, sulfur dioxide, discharged nitrous oxides concentration are respectively no higher than 10,35,50 milligrams/cubic metre). The middle part new-built unit such as (Heilungkiang, Jilin, Shanxi, Anhui, Hubei, Hunan, Henan, Jiangxi 8 provinces), in principle close to or up gas turbine group emission limit, encourages west area new-built unit close to or up gas turbine group emission limit. Support that the elimination of atmosphere pollution combination and cooperation is carried out in synchronization, reduce the pollutant emissions such as sulfur trioxide, hydrargyrum, arsenic.
In flue gas desulfurization minimum discharge technology innovation project, slurry pool of absorption tower needs to increase, and after serosity volume strengthens, original first mixer stirring scope can not meet the demand of existing serosity volume, gypsum slurries can be caused to precipitate, make calcium sulfite (Ca simultaneously2SO3·1/2H2O) fully can not react with oxygen mix, cause gypsum crystallization body to be deposited in bottom absorption tower, blocking absorption tower circulating pump filter screen, cause serosity to circulate, cause desulfurizing tower cannot enter desulphurization reaction.
Summary of the invention
For solving the problems referred to above, it is an object of the invention to provide a kind of absorption tower twin-stage agitator device.
It is an object of the invention to be achieved through the following technical solutions:
A kind of absorption tower twin-stage agitator device, described absorption tower includes: smoke inlet, and it arranges the middle lower section of side, described absorption tower; Slurry tank, it is arranged on internal bottom side, described absorption tower, is positioned at the lower section of described smoke inlet; Spray portion, it is arranged on inside described absorption tower, is positioned at the top of described smoke inlet, and described spray portion is provided with multiple spraying layer, and each spraying layer is equipped with several nozzles; Dedusting demister, it is arranged on inside described absorption tower, is positioned at the top in described spray portion; Described dedusting demister connects exhanst gas outlet through shrinking reducer; Described absorption tower twin-stage agitator device is located at inside described slurry tank;
Described absorption tower twin-stage agitator device includes:
Two first mixer and two two grades of agitators, it is arranged at the middle lower section of described slurry tank inwall, within one week, is uniformly distributed along described slurry tank inwall, and two grades of agitators are positioned at the top of first mixer; Said two first mixer and two two grades of agitators all include: stirring motor, and it is arranged on outside absorption tower; Shaft, it is connected with described stirring motor; Paddle, it is arranged on the bottom of described shaft.
Further, described first mixer is apart from described slurry tank base plate 2 meters.
Further, described two grades of agitator in the vertical directions are apart from described first mixer 3 meters.
Further, described two grades of agitators are R, R apart from described first mixer in the horizontal direction is the radius of described slurry tank.
In flue gas desulfurization minimum discharge technology innovation project, slurry pool of absorption tower needs to increase, after serosity volume strengthens, original first mixer stirring scope can not meet the demand of existing serosity volume, two grades of agitators are set up at twin-stage agitator device 3 meters of on first mixer in absorption tower of the present invention, gypsum slurries stirs, and does not have precipitation, makes calcium sulfite (Ca simultaneously2SO3·1/2H2O) fully react with oxygen mix, gypsum crystallization body will not be deposited in bottom absorption tower, absorption tower circulating pump filter screen will not block, serum recycle is normal, desulfurizing tower is normally carried out desulphurization reaction, after ensure that transformation, emission limit is (namely under benchmark oxygen content 6% condition) simultaneously: sulfur dioxide 30 milligram/cubic metre, desulphurization system stable operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of absorption tower of the present invention twin-stage agitator device;
Wherein, bis-grades of agitators of 1-, 2-first mixer, 3-smoke inlet, 4-exhanst gas outlet, 5-shrinks reducer.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated. Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention.
A kind of absorption tower twin-stage agitator device, described absorption tower includes: smoke inlet 3, and it arranges the middle lower section of side, described absorption tower; Slurry tank, it is arranged on internal bottom side, described absorption tower, is positioned at the lower section of described smoke inlet 3; Spray portion, it is arranged on inside described absorption tower, is positioned at the top of described smoke inlet 3, and described spray portion is provided with multiple spraying layer, and each spraying layer is equipped with several nozzles; Dedusting demister, it is arranged on inside described absorption tower, is positioned at the top in described spray portion; Described dedusting demister connects exhanst gas outlet 4 through shrinking reducer 5;Described absorption tower twin-stage agitator device is located at inside described slurry tank;
Described absorption tower twin-stage agitator device includes:
Two first mixer 2 and two two grades of agitators 1, it is arranged at the middle lower section of described slurry tank inwall, within one week, is uniformly distributed along described slurry tank inwall, and two grades of agitators 1 are positioned at the top of first mixer 2; Said two first mixer 2 and two two grades of agitators 1 all include: stirring motor, and it is arranged on outside absorption tower; Shaft, it is connected with described stirring motor; Paddle, it is arranged on the bottom of described shaft.
Described first mixer 2 is apart from described slurry tank base plate 2 meters. Described two grades of agitator 1 in the vertical directions are 3 meters apart from described first mixer 2. Described two grades of agitators 1 are R, R apart from described first mixer 2 in the horizontal direction is the radius of described slurry tank.
In flue gas desulfurization minimum discharge technology innovation project, slurry pool of absorption tower needs to increase, after serosity volume strengthens, original first mixer stirring scope can not meet the demand of existing serosity volume, two grades of agitators are set up at twin-stage agitator device 3 meters of on first mixer in absorption tower of the present invention, gypsum slurries stirs, and does not have precipitation, makes calcium sulfite (Ca simultaneously2SO3·1/2H2O) fully react with oxygen mix, gypsum crystallization body will not be deposited in bottom absorption tower, absorption tower circulating pump filter screen will not block, serum recycle is normal, desulfurizing tower is normally carried out desulphurization reaction, after ensure that transformation, emission limit is (namely under benchmark oxygen content 6% condition) simultaneously: sulfur dioxide 30 milligram/cubic metre, desulphurization system stable operation.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations. All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (4)
1. an absorption tower twin-stage agitator device, described absorption tower includes: smoke inlet (3), and it arranges the middle lower section of side, described absorption tower; Slurry tank, it is arranged on internal bottom side, described absorption tower, is positioned at the lower section of described smoke inlet (3); Spray portion, it is arranged on inside described absorption tower, is positioned at the top of described smoke inlet (3), and described spray portion is provided with multiple spraying layer, and each spraying layer is equipped with several nozzles; Dedusting demister, it is arranged on inside described absorption tower, is positioned at the top in described spray portion; Described dedusting demister connects exhanst gas outlet (4) through shrinking reducer (5); Described absorption tower twin-stage agitator device is located at inside described slurry tank;
It is characterized in that, described absorption tower twin-stage agitator device includes:
Two first mixer (2) and two two grades agitators (1), it is arranged at the middle lower section of described slurry tank inwall, within one week, being uniformly distributed along described slurry tank inwall, two grades of agitators (1) are positioned at the top of first mixer (2); Said two first mixer (2) and two two grades agitators (1) all include: stirring motor, and it is arranged on outside absorption tower; Shaft, it is connected with described stirring motor; Paddle, it is arranged on the bottom of described shaft.
2. absorption tower according to claim 1 twin-stage agitator device, it is characterised in that described first mixer (2) is apart from described slurry tank base plate 2 meters.
3. absorption tower according to claim 1 twin-stage agitator device, it is characterised in that described two grades of agitator (1) in the vertical directions are apart from described first mixer (2) 3 meters.
4. absorption tower according to claim 1 twin-stage agitator device, it is characterised in that described two grades of agitators (1) in the horizontal direction apart from described first mixer (2) be radius that R, R are described slurry tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610086160.1A CN105664703A (en) | 2016-02-15 | 2016-02-15 | Absorption tower two-stage stirrer device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610086160.1A CN105664703A (en) | 2016-02-15 | 2016-02-15 | Absorption tower two-stage stirrer device |
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| Publication Number | Publication Date |
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| CN105664703A true CN105664703A (en) | 2016-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610086160.1A Pending CN105664703A (en) | 2016-02-15 | 2016-02-15 | Absorption tower two-stage stirrer device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5605552A (en) * | 1994-05-17 | 1997-02-25 | Mitsubishi Jukogyo Kabushiki Kaisha | Wet type flue gas desulfurization apparatus |
| CN201260936Y (en) * | 2008-09-11 | 2009-06-24 | 无锡市华星电力环保修造厂 | Wet flue gas desulfurization absorption tower slurry pool |
| CN201586478U (en) * | 2009-12-30 | 2010-09-22 | 山东山大能源环境有限公司 | Two-stage slurry circulation device for large-scale wet flue gas desulfurization |
| CN101844037A (en) * | 2010-06-12 | 2010-09-29 | 上海电力学院 | Tower for flue gas desulfurization in homogeneous air-humidifying method |
| CN205340556U (en) * | 2016-02-15 | 2016-06-29 | 大唐环境产业集团股份有限公司 | Absorption tower doublestage agitator device |
-
2016
- 2016-02-15 CN CN201610086160.1A patent/CN105664703A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5605552A (en) * | 1994-05-17 | 1997-02-25 | Mitsubishi Jukogyo Kabushiki Kaisha | Wet type flue gas desulfurization apparatus |
| CN201260936Y (en) * | 2008-09-11 | 2009-06-24 | 无锡市华星电力环保修造厂 | Wet flue gas desulfurization absorption tower slurry pool |
| CN201586478U (en) * | 2009-12-30 | 2010-09-22 | 山东山大能源环境有限公司 | Two-stage slurry circulation device for large-scale wet flue gas desulfurization |
| CN101844037A (en) * | 2010-06-12 | 2010-09-29 | 上海电力学院 | Tower for flue gas desulfurization in homogeneous air-humidifying method |
| CN205340556U (en) * | 2016-02-15 | 2016-06-29 | 大唐环境产业集团股份有限公司 | Absorption tower doublestage agitator device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Yuxin Inventor after: Liu Chang Inventor after: Jiang Chengyu Inventor after: Li Chunyu Inventor after: Xia Shuang Inventor after: Li Yehong Inventor before: Liu Yuxin Inventor before: Liu Chang Inventor before: Lu Shengkuan |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160615 |