CN201669053U - Desulfurizing device with gas fume washing component - Google Patents
Desulfurizing device with gas fume washing component Download PDFInfo
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- CN201669053U CN201669053U CN2010201953717U CN201020195371U CN201669053U CN 201669053 U CN201669053 U CN 201669053U CN 2010201953717 U CN2010201953717 U CN 2010201953717U CN 201020195371 U CN201020195371 U CN 201020195371U CN 201669053 U CN201669053 U CN 201669053U
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- flue gas
- washing
- desulfurizer
- absorption liquid
- gas fume
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Abstract
A desulfurizing device with a gas fume washing component comprises a desulfurizing tower. The desulfurizing tower comprises an oxidation tank containing desulfurizing absorption liquid and an air bubbling component and a gas fume desulfurizing section containing at least two groups of absorption liquid spray components and at least one group of gas fume defoaming components. Particularly, the desulfurizing tower is further provided with a gas fume washing section containing at least one group of desulfurizing gas fume washing spray components and at least one group of gas fume deforming components. Therefore, serous drops passing through a desulfurizing gas fume clip band is washed in the gas fume washing section, the density of the serous drops is greatly thinned and decreased after the serous drops enter washing liquid, and then obvious white spots and equipment corrosion are merely generated even some serous drops escape along with the gas fume clip band in the gas fume washing section, thereby resolving problems of ammonium sulphur misty rain.
Description
Technical field
The utility model relates to a kind of desulfurizer that is provided with flue gas washing member, and being specifically related to ammonia is that raw material reclaims the flue gas desulfur device that oxysulfide is produced the sulphur ammonium from flue gas.
Background technology
The acidic gaseous harmful substance that contains in the flue gas, SO especially wherein
2It is the main source that forms acid rain.Employing ammonia is raw material, and the flue gas desulfurization product is an ammonium sulfate, is the very high chemical fertilizer of a kind of fertilizer efficiency.
But, the practical challenges that existing ammonia-process desulfurization technique faces jointly is exactly the flue gas behind the desulfurizing and purifying, or claim clean flue gas to carry the slurry drops that contains ammonium sulfate secretly, and under the disadvantageous condition of meteorological condition, under the lower situation of wind speed, the drop of slurries down can descend slowly and lightly near the chimney, scatter on the ground, on the equipment or on the building, become the spot of white, be called " sulphur ammonium misty rain " traditionally, or " sulphur ammonium rain ", influenced attractive in appearancely, even caused corrosion, become a new pollution problem.
The method of existing head it off generally all is foam removal or the defrosting function that increases flue gas, but effect is relatively poor.Therefore, if do not solve this " sulphur ammonium rain " problem well, will seriously restrict the development of ammonia type flue gas desulfurizing technology, especially it is applied.
Summary of the invention
The purpose of this utility model is to disclose a kind of novel desulfurizer that is provided with the washing member, so that solve serious " the sulphur ammonium rain " problem that exists in the prior art economically.
For achieving the above object, the utility model has designed a kind of desulfurizer that is provided with flue gas washing member, and described device comprises desulfurizing tower, and desulfurizing tower comprises tower body, is arranged on the gas approach at middle part and the exhanst gas outlet at top, and flue gas has down from last mobile; Described gas approach below is for to contain the absorption liquid circulatory pool of desulfurization absorption liquid and air bubbling member, or is called oxidation pond, and it is ammonium sulfate with the sulfite oxidation in the absorption liquid that air is separated into minute bubbles by the bubbling member; Described gas approach top becomes ammonium sulfite for containing the flue gas desulfurization section of at least two group absorption liquid spraying components and at least one group of flue gas foam removal member with the sulfur in smoke absorption, and liquid foam or drop in the restriction flue gas are carried secretly; Described absorption liquid circulatory pool is connected by desulfuration recycle pump outside described tower body with described flue gas desulfurization section, realize the circulation conveying of desulfurization absorption liquid, the essence of its innovation is, above described flue gas desulfurization section, also contain the flue gas washing section that comprises at least one group of desulfurization flue gas washing spraying component and at least one group of flue gas foam removal member, and there is dividing plate to separate between described flue gas desulfurization section and the flue gas washing section, be connected with on the described dividing plate and rise gas cap, allow flue gas pass, also be connected with downspout on the described dividing plate, allow liquid flow out.Like this, through the flue gas after the flue gas desulfurization section, the slurry drops that it is carried secretly, or be called the drop that contains sulfate, even more specifically for containing the aqueous solution droplets of ammonium sulfate, be washed at the flue gas washing section, entering in the water lotion, its concentration is by dilution reduction greatly.If the slurries sulphur ammonium concentration of flue gas desulfurization section is 50%, flue gas droplets entrained amount is in time pressed 100mg/Nm
3Calculate, at the flue gas washing section, the ammonium sulfate content in the water lotion will be reduced to less than 0.5%, even there is drop to carry secretly with flue gas and go out at the flue gas washing section, it can produce tangible white dot hardly, thereby has eliminated the problem of sulphur ammonium rain.
The aforesaid desulfurizer that is provided with flue gas washing member, its feature also is, also comprise washing circulating slot that contains water lotion and the washing circulating pump of carrying described water lotion, and described washing inlet of circulating pump links to each other with described washing circulating slot, the washing outlet of circulating pump is connected by the water lotion pipeloop with the described desulfurization flue gas washing spraying component of described flue gas washing section, and the described downspout that connects on the described dividing plate is connected with described washing circulating slot by the water lotion reflux pipeline.Like this, constitute the washing closed circuit, realized the washing of continous-stable.
The aforesaid desulfurizer that is provided with flue gas washing member, its feature also is, on described washing circulating slot, can also be in the optional position of the washing circulation section of described desulfurizing tower, even can be on described washing circulation pipe or washing reflux pipeline, preferably be connected with the adapter of adding water on described washing circulating slot, and the ammonium sulfate concentrations of the water lotion in the described washing circulating slot being 0.05～2.5%, is 0.1～0.5% preferably.Like this, make raw water or title fresh water (FW) that desulfurizing tower needs mainly add from the flue gas washing section, can guarantee the water balance of whole desulfurizing tower, and make isorrheic control effective fast, reduce the sulphur ammonium content of water lotion to greatest extent, eliminate " the sulphur ammonium rain " phenomenon that can produce white dot in time.
The aforesaid desulfurizer that is provided with flue gas washing member, its feature also is, described flue gas desulfurization section also includes the rinse spray member that is used to wash described foam removal member, described rinse spray member is arranged in the below or the top of described foam removal member, preferably all arranged the rinse spray member with the below up, and described rinse spray member is connected with described washing circulating slot by the water lotion feed-line.Like this, can realize that needed raw water of flue gas desulfurization section or title fresh water (FW) are replenished in time from the flue gas washing section, wash the demister of flue gas desulfurization section simultaneously when replenishing effectively, prevent its structure obstruction, realize double effects.
In addition, isolating the gas cap quantity that rises that is connected on the dividing plate of flue gas desulfurization section and flue gas washing section in the described desulfurizing tower is 1～10, and preferred 3～6, preferably 4, the downspout quantity of connection is 1～4, preferred 2 or 3.Like this, help flue gas and liquid evenly distributes, guarantee detersive efficiency.
Further, the adding that is connected with air on the described absorption liquid circulatory pool is taken over, and is connected with air bubbling member that its inside is contained.Like this, the air that can provide oxidation to use is guaranteed high oxidation efficiency.
In addition, more than any spraying component, or claim spray thrower, comprise mother's pipe of liquid flow, is connected the arm on female pipe, and is connected the nozzle on the arm, and the distribution mode of nozzle is preferred evenly distributes general every m
2Arrange 0.5～2.0; Above foam removal member, or claim demister is a kind of flue gas desulfurization industry equipment commonly used, and it is by the plate of bellows-shaped, and especially to press constant spacing assembled for the corrugated cardboard sheet of buckle.Described air bubbling member also is a member commonly used in the flue gas desulfurization industry, can be the porous calandria, also can be mechanical agitation type.
Operation principle of the present utility model is such:
Contain sulfur dioxide, and the higher former flue gas of temperature is entered desulfurizing tower by gas approach flue gas desulfurization section, be transported to the absorption liquid spraying component with extracting from the absorption liquid circulatory pool of desulfurizing tower bottom by desulfuration recycle pump, and the desulfurization absorption liquid that sprays contacts closely, sulfur dioxide becomes ammonium sulfite and is dissolved in the absorption liquid, falls back to the absorption liquid circulatory pool in tower.Flue gas is after the foam removal of process flue gas demister, the gas cap that rises that passes on the dividing plate enters the flue gas washing section, the sulphur ammonium slurries of carrying secretly from the next flue gas of flue gas desulfurization section are removed in washing, further leave desulfurizing tower from exhanst gas outlet after the foam removal, become pure especially pure flue gas, enter chimney by follow-up flue.
Water lotion is stored in the washing circulating slot, by washing the washing spray thrower that circulating pump is transported to the flue gas washing section, through behind its distribution sprinkling, slurries in the washing flue gas, enter water lotion, get back to the washing circulating slot, fresh raw water constantly adds to the washing circulating slot.Like this, realize flue gas washing continuously, guaranteed the sulphur ammonium rain phenomenon that can effectively remove smoke.
Former flue gas can evaporate moisture content in the absorption liquid simultaneously in the flue gas desulfurization section, and the liquid level that shows as described absorption liquid circulatory pool reduces.Can be in time from the washing circulating slot, extract water lotion, wash described foam removal member, enter described flue gas desulfurization section, keep the liquid level of its water balance and absorption liquid circulatory pool by the rinse spray member of the foam removal member of flue gas desulfurization section.
Ammonium sulfite at the absorption liquid circulatory pool is become ammonium sulfate by the air oxidation that air bubbling member disperses, make absorption liquid become the aqueous solution of ammonium sulfate, and ammonium sulfate concentrations can surpass the solubility under the respective conditions and separate out sulphur ammonium crystal, thereby makes absorption liquid become to contain the slurries of ammonia sulfate crystal.Slurries are constantly got rid of desulfurizing tower, and are constant to keep in the desulfurizing tower concentration of slurry.Raw material ammonia also adds to the absorption liquid circulatory pool simultaneously, and is stable to guarantee desulfuration efficiency, and keeps the pH value of certain limit, and the pH value generally maintains between 5～6.
Compare with the prior art scheme, adopt the beneficial effect that is provided with the desulfurizer of flue gas washing member of the present utility model to be, after flue gas after the desulfurization washs through the flue gas washing section, ammonium sulfate content reduces greatly in the droplets entrained, produce tangible white dot hardly, thereby eliminated the problem that sulphur ammonium rain in traditional ammonia process and smoke content increase.
Description of drawings
Fig. 1 is the desulfurizer schematic diagram that is provided with flue gas washing member.
The specific embodiment
Below in conjunction with accompanying drawing the desulfurizer that is provided with flue gas washing member of the present utility model is described in further detail.
Referring to accompanying drawing 1, a kind of desulfurizer that is provided with flue gas washing member, comprise desulfurizing tower 1, described desulfurizing tower 1 comprises tower body 101, be arranged on the gas approach 102 at middle part and the exhanst gas outlet 103 at top, it in the tower body of described gas approach 102 belows the absorption liquid circulatory pool that contains desulfurization absorption liquid 111 and air bubbling member 110, for containing the flue gas desulfurization section of two groups of absorption liquid spraying components (112 and 113) and one group of flue gas foam removal member 114, described absorption liquid circulatory pool is connected by the outer desulfuration recycle pump 2 of desulfurizing tower tower body with described flue gas desulfurization section in the tower body of described gas approach 102 tops; Above described flue gas desulfurization section, also contain the flue gas washing section that comprises one group of desulfurization flue gas washing spraying component 118 and one group of flue gas foam removal member 119 in the tower body, and have dividing plate 117 to separate between described flue gas desulfurization section and the flue gas washing section.
The aforesaid desulfurizer that is provided with flue gas washing member is connected with on its dividing plate 117 and rises gas cap 121, and its number is 4, also is connected with downspout 122, and its number is 2; Also comprise washing circulating slot 3 that contains water lotion 31 and the washing circulating pump 4 of carrying described water lotion 31, and the import of described washing circulating pump 4 links to each other with washing circulating slot 3, and outlet is connected by water lotion pipeloop 5 with described desulfurization flue gas washing spraying component 118; The downspout 122 that connects on the described dividing plate 117 is connected with described washing circulating slot 3 by water lotion reflux pipeline 7; On described washing circulating slot 3, be connected with the adapter 8 of adding water; The ammonium sulfate mass concentration of water lotion 31 is 0.2%.
The aforesaid desulfurizer that is provided with flue gas washing member, its flue gas desulfurization section also includes the rinse spray member 114 and 116 that is used to wash described foam removal member 115, and rinse spray member 114 is connected with described washing circulating slot 3 by water lotion feed-line 6 with 116, and the adding that is connected with air on the described absorption liquid circulatory pool takes over 12.
The utility model is operated as follows:
Contain sulfur dioxide, and the higher former flue gas 10 of temperature is entered desulfurizing tower 1 by gas approach 102 flue gas desulfurization section, be transported to absorption liquid spraying component 112 and 113 with extracting from the absorption liquid circulatory pool of desulfurizing tower 2 bottoms by desulfuration recycle pump 2, and the desulfurization absorption liquid 111 that sprays contacts closely, sulfur dioxide becomes ammonium sulfite and is dissolved in the absorption liquid, falls back to the absorption liquid circulatory pool in tower.Flue gas is after 115 foam removals of process flue gas demister, the gas cap 121 that rises that passes on the dividing plate 117 enters the flue gas washing section, the sulphur ammonium slurries of carrying secretly from the next flue gas of flue gas desulfurization section are removed in washing, further leave desulfurizing tower 2 from exhanst gas outlet 103 after the foam removal, become pure especially pure flue gas 20, enter chimney by follow-up flue.
Ammonium sulfite at the absorption liquid circulatory pool is become ammonium sulfate by air 12 oxidations that air bubbling member 110 disperses, make absorption liquid 111 become the aqueous solution of ammonium sulfate, and ammonium sulfate concentrations can surpass the solubility under the respective conditions and separate out sulphur ammonium crystal, thereby makes absorption liquid become to contain the slurries of ammonia sulfate crystal.Slurries 9 are constantly got rid of desulfurizing towers, and are constant to keep in the desulfurizing tower concentration of slurry.Raw material ammonia 11 also adds to the absorption liquid circulatory pool simultaneously, and is stable to guarantee desulfuration efficiency, and keeps the pH value of certain limit, and the pH value generally maintains 5.6.
By the operation of above device, after the flue gas after the desulfurization washed through the flue gas washing section, the flue gas of pureization did not produce the problem of tangible sulphur ammonium rain.
Claims (10)
1. one kind is provided with the desulfurizer that flue gas is washed member, comprise desulfurizing tower (1), described desulfurizing tower (1) comprises tower body (101), be arranged on the gas approach (102) at middle part and the exhanst gas outlet (103) at top, described gas approach (102) below is for containing the absorption liquid circulatory pool of desulfurization absorption liquid (111) and air bubbling member (110), described gas approach (102) top is for containing the flue gas desulfurization section of at least two group absorption liquid spraying components (112 and 113) and at least one group of flue gas foam removal member (115), described absorption liquid circulatory pool is connected by desulfuration recycle pump (2) outside described tower body (101) with described flue gas desulfurization section, it is characterized in that, above described flue gas desulfurization section, also contain the flue gas washing section that comprises at least one group of desulfurization flue gas washing spraying component (118) and at least one group of flue gas foam removal member (119), and have dividing plate (117) to separate between described flue gas desulfurization section and the flue gas washing section.
2. the desulfurizer that is provided with flue gas washing member according to claim 1 is characterized in that, is connected with on the described dividing plate (117) and rises gas cap (121).
3. the desulfurizer that is provided with flue gas washing member according to claim 2 is characterized in that, is connected with downspout (122) on the described dividing plate (117).
4. the desulfurizer that is provided with flue gas washing member according to claim 3, it is characterized in that, also comprise washing circulating slot (3) that contains water lotion (31) and the washing circulating pump (4) of carrying described water lotion (31), and the import of described washing circulating pump (4) links to each other with described washing circulating slot (3), and outlet is connected by water lotion pipeloop (5) with described desulfurization flue gas washing spraying component (118).
5. the desulfurizer that is provided with flue gas washing member according to claim 4 is characterized in that described dividing plate (117) is gone up the described downspout (122) that connects and is connected with described washing circulating slot (3) by water lotion reflux pipeline (7).
6. the ammonia type flue gas desulfurizing apparatus with desulfurization flue gas washing function according to claim 4 is characterized in that, is connected with the adapter (8) of adding water on described washing circulating slot (3).
7. the desulfurizer that is provided with flue gas washing member according to claim 4 is characterized in that the ammonium sulfate concentrations of described water lotion (31) is 0.05～2.5%.
8. the desulfurizer that is provided with flue gas washing member according to claim 4, it is characterized in that, described flue gas desulfurization section also includes the rinse spray member (114 or 116) that is used to wash described foam removal member (115), and described rinse spray member (114 or 116) is connected with described washing circulating slot (3) by water lotion feed-line (6).
9. according to each described desulfurizer that is provided with flue gas washing member of claim 3 to 8, it is characterized in that described to rise gas cap (121) quantity be 1～10, described downspout (122) quantity is 1～4.
10. the desulfurizer that is provided with flue gas washing member according to claim 9 is characterized in that (12) are taken in the adding that is connected with air on the described absorption liquid circulatory pool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201953717U CN201669053U (en) | 2010-05-17 | 2010-05-17 | Desulfurizing device with gas fume washing component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201953717U CN201669053U (en) | 2010-05-17 | 2010-05-17 | Desulfurizing device with gas fume washing component |
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| Publication Number | Publication Date |
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| CN201669053U true CN201669053U (en) | 2010-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010201953717U Expired - Lifetime CN201669053U (en) | 2010-05-17 | 2010-05-17 | Desulfurizing device with gas fume washing component |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105688580A (en) * | 2016-04-01 | 2016-06-22 | 中国大唐集团科学技术研究院有限公司 | Efficient dedusting rectifying device based on desulfurizing tower |
| WO2017012557A1 (en) * | 2015-07-21 | 2017-01-26 | 华能国际电力股份有限公司 | High-efficiency gradient hierarchy complex desulfurizing tower |
| WO2018103340A1 (en) * | 2016-12-08 | 2018-06-14 | 广东佳德环保科技有限公司 | Water scrubber for high-efficiency removal of aerosol |
| CN110052121A (en) * | 2019-05-14 | 2019-07-26 | 北京国电龙源环保工程有限公司 | A kind of desulphurization system water balance regulator control system and its process |
-
2010
- 2010-05-17 CN CN2010201953717U patent/CN201669053U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017012557A1 (en) * | 2015-07-21 | 2017-01-26 | 华能国际电力股份有限公司 | High-efficiency gradient hierarchy complex desulfurizing tower |
| CN105688580A (en) * | 2016-04-01 | 2016-06-22 | 中国大唐集团科学技术研究院有限公司 | Efficient dedusting rectifying device based on desulfurizing tower |
| WO2018103340A1 (en) * | 2016-12-08 | 2018-06-14 | 广东佳德环保科技有限公司 | Water scrubber for high-efficiency removal of aerosol |
| CN110052121A (en) * | 2019-05-14 | 2019-07-26 | 北京国电龙源环保工程有限公司 | A kind of desulphurization system water balance regulator control system and its process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180423 Address after: Room 803, room 36, No. 1, Bi Quan Road, Minhang District, Shanghai Patentee after: Lou Aijuan Address before: 201100 Minhang District Xinjian East Road, Minhang District, Shanghai, B-702 Patentee before: Shenchuan Environment Protection Science and Technology Co., Ltd., Shanghai |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180823 Address after: 200233 201, room 38, 333 Qinjiang Road, Xuhui District, Shanghai. Patentee after: Shanghai Shen Xin River Environmental Protection Engineering Technology Co., Ltd. Address before: Room 803, room 36, No. 1, Bi Quan Road, Minhang District, Shanghai Patentee before: Lou Aijuan |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101215 |