CN200963566Y - Flue gas desulfurizing spraying adsorption tower - Google Patents
Flue gas desulfurizing spraying adsorption tower Download PDFInfo
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- CN200963566Y CN200963566Y CN 200620138847 CN200620138847U CN200963566Y CN 200963566 Y CN200963566 Y CN 200963566Y CN 200620138847 CN200620138847 CN 200620138847 CN 200620138847 U CN200620138847 U CN 200620138847U CN 200963566 Y CN200963566 Y CN 200963566Y
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- Prior art keywords
- tower
- flue gas
- demister
- storage tank
- circulation fluid
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Abstract
The utility model discloses a sprinkling absorption tower for fume desulfurization, which comprises a tower body, the tower body is provided with an air inlet and an air outlet, the air inlet is arranged at the lower middle location of the tower body, which is arranged by way of facing the absorption tower and being inclined downwards, the absorption tower is internally provided with a washing device for demister, a demister, a circulating liquid sprinkling tube and a circulating liquid storage tank which are sequentially arranged from the top to the bottom, the circulating liquid storage tank is arranged at the downside of the tower body, which is an oxidation reaction zone, and is internally provided with a micro-hole aerator and a circulating liquid mixing device, the circulating liquid storage tank is also provided with a magnetic level meter. The sprinkling system of the absorption tower is designed as an unit type multi-layer high-level arrangement with a small resistance, a low energy consumption, a high desulfuration efficiency, a flexible operation, a reliable technology, a small footprint., etc, the secondary pollution does not occur.
Description
Technical field
The utility model relates to a kind of desulfurization spray absorber, specifically, relates to a kind of spray absorber that fire coal boiler fume removes sulfur dioxide that is used for.
Background technology
Ammonia process is a kind of sulfur removal technology of technology maturation, and its major technique characteristics have: 1. very high desulfuration efficiency is arranged, can reach more than 95%.2. because ammonia and SO
2Reaction is gas-vapour or the gas-liquid reaction of moment, and reaction speed is than lime stone (or lime) and SO
2Replacement reaction speed is faster, thereby liquid-gas ratio is than lime stone-the gypsum method is little, system is simple and reliable, and its investment cost is lower than lime stone-gypsum method, and floor space is little.Common equipment scaling and line clogging phenomenon when in technical process, not having lime stone as absorbent.3. (the NH that generates in the desulfurization
3)
2SO
3(ammonium sulfite) solution is exactly the absorbent of absorption of N Ox.Therefore ammonia process has the function of denitrogenation simultaneously, and efficient can reach more than 50%.5. ammonia desulfurizing process does not have waste water, waste sludge discharge, has avoided the generation of secondary pollution, has reduced the place of storing refuse.The final products of desulfurization are solid ammonium sulfates, can be used as the raw material or the direct marketing of production composite fertilizer, create economic benefit.6. because ammonia is the carrier absorption sulfur in smoke, sulfur is recycled, ammonia is got back to chemical fertilizer with the form of nitrogenous fertilizer again from chemical fertilizer, thereby reaches the purpose of " harmless treatment ".7. in the desulfurization absorption reaction, the consumption of ammonia is far smaller than the consumption of lime in the limestone-based process, has therefore reduced traffic expense, has saved cost.8. equipment has higher reliability, and availability reaches more than 95%, and the situation of shutting down because of fouling, plugging fault seldom takes place.
Desulfuration absorbing tower is the intermediate equipment between boiler hot flue gas and the production ammonium sulfate device.SO in the flue gas
2In desulfuration absorbing tower, be removed, circulation fluid pH value in the desulfuration absorbing tower is controlled in the 5.0-5.6 scope, the ammonium sulfite solution that generates obtains the final products ammonium sulfate through forced oxidation, produces solid ammonium sulfate as merchandise sales through equipment for after-treatment again.
The major defect that traditional ammonia type flue gas desulfurizing absorption tower exists is, the loss of absorbent ammonia is bigger, and ammonia can not be participated in reaction fully and discharge with flue gas, generates aerosol and discharges with flue gas owing to can not effectively controlling reaction temperature, causes secondary pollution.Therefore, cause byproduct to be difficult to reclaim.
The utility model content
The utility model technical issues that need to address just are to overcome the defective of prior art, a kind of ammonia process of desulfurization spray absorber is provided, this absorption tower has that resistance is little, energy consumption is low, desulfuration efficiency is high, reliable, no waste water, waste sludge discharge do not produce advantages such as secondary pollution.
For addressing the above problem, the utility model adopts following technical scheme:
A kind of flue gas desulfurization sprinkle absorbing tower of the utility model, comprise tower body, tower body is provided with air inlet and exhaust outlet, described air inlet is arranged on the middle and lower part of tower body, the layout of air inlet is towards the absorption tower, and it is downward-sloping, demister flusher, demister, circulation fluid shower and circulation fluid storage tank are installed in the absorption tower from top to bottom, the tower body bottom is the circulation fluid storage tank, the circulation fluid storage tank is an oxidation reaction zone, micro-hole aerator and circulation fluid agitating device are installed in the groove, on the circulation fluid storage tank magnetic turning column liquid level meter are installed.
Demister described in the utility model is a two-stage folded plate type flue gas demister.
The utility model adopts rational housing structure, and the control flue gas flow rate guarantees that the reaction of flue gas and absorbent has adequate time.
The beneficial effects of the utility model are: this device comparative resistance is little, energy consumption is low, desulfuration efficiency is high, good reliability, do not produce secondary pollution.Solved in the conventional ammonia process that absorbent consumption big (free ammonia, aerocolloidal formation), integrated operation cost height, equipment are perishable, byproduct is difficult to problems such as recycling.
Description of drawings
Fig. 1 is the utility model structural representation.
Wherein: 1, clean exhanst gas outlet; 2, demister syringe; 3, circulation fluid shower; 4, demister; 5 tower bodies; 6, gas approach; 7, circulation fluid storage tank; 8, magnetic turning column liquid level meter; 9, agitator; 10, sewage draining exit; 11, circulation fluid outlet; 12, ammonium sulfate conveying end; 13, oxidation air inlet.
The specific embodiment
As shown in Figure 1, a kind of desulfurization spray absorber of the utility model comprises tower body 5, and tower body is provided with gas approach 6, clean exhanst gas outlet 1, and described air inlet is arranged on the middle and lower part of tower body, and the layout of air inlet is towards the absorption tower, and the downward-sloping gradient is arranged.Tower body inside is equipped with multilayer circulation fluid shower 3, does not install before flue gas enters desulfuration absorbing tower under the operating mode of GGH cooling, needs to install before flue gas enters the absorption tower Wen's reactor, and flue gas enters desulfuration absorbing tower after the cooling of Wen's reactor.Demister syringe 2, demister 4, circulation fluid storage tank 7 are installed in the absorption tower from top to bottom, on the circulation fluid storage tank of tower body bottom magnetic turning column liquid level meter 8 is installed, circulation liquid bath in tower body bottom is an oxidation reaction zone 13, and micro-hole aerator and circulation fluid agitator 9 are installed in the groove.
The tower body bottom is provided with sewage draining exit 10, and the tower body lower side is respectively arranged with circulation fluid outlet 11 and ammonium sulfate conveying end 12 and oxidation air inlet 13 from top to bottom.
Demister described in the utility model is a two-stage folded plate type flue gas demister.
Absorption tower described in the utility model is the circulated sprinkling tower, no porous plate and filler in the tower, and the tower wall surface is level and smooth.
The utility model tower body inside is equipped with multilayer shower and nozzle, before entering desulfuration absorbing tower, flue gas do not install under the operating mode of GGH cooling, need to install before flue gas enters the absorption tower Wen's reactor, flue gas enters desulfuration absorbing tower after the cooling of Wen's reactor.
Behind the hot flue gas process GGH or the cooling of civilian formula reactor from boiler, middle and lower part by spray absorber enters the absorption tower, the absorbent circulation fluid sprays circulation fluid downwards by the spraying layer that is located at the tower upper position, contacts with from bottom to top flue gas adverse current to carry out the caloic exchange.The layout of air inlet is towards the absorption tower, and the suitable downward-sloping gradient is arranged, thereby guarantees the stop reaction time of flue gas in the absorption tower and evenly distribution.
Absorbing shower and shower nozzle is to carry out the spray washing flue gas according to the sprinkle density that designs and covering interference area and liquid-gas ratio, removes sulfur in smoke.The size of absorbent ammonia consumption depends on the content of the treating capacity and the sulfur dioxide in flue gas of flue gas.
In the process of flue gas desulfurization, because hot flue gas carries out the caloic exchange in circulation fluid, when reducing flue-gas temperature, can produce evaporation of water, the water capacity of flue gas is increased greatly, carried a large amount of liquid foams and tiny drop in the flue gas, liquid foam and drop need be removed by the two-stage folded plate type demister that is installed in spraying layer top, make moisture content in the flue gas less than 100mg/Nm
3Discharging.
Owing to produce evaporation of water in the process of caloic exchange, the decline of the liquid bath water level that can cause circulating is being mingled with dirt in the flue gas after the desulfurization simultaneously and can accumulating on the demister, and flue gas resistance is increased.Therefore, regularly clean demister with industry water, the demister syringe has two effects; The one, replenish the water yield of being evaporated because of the caloic exchange process, keep the normal liquid level of circulation liquid bath.The 2nd, the periodic flushing demister is to keep the cleaning of demister.
The utility model ammonia type flue gas desulfurizing absorption tower, it is with the SO in the fire coal boiler fume
2As a kind of resource, make carrier with ammonia it is absorbed, generate ammonium sulfite (NH
4)
2SO
3Be dissolved in the solution, as power circulation cleaning flue gas repeatedly, remove the SO in the flue gas by circulating pump
2
Desulfuration absorbing tower described in the utility model adopts the flue gas adverse current form to mix with absorbent ammonia and contacts.The mode of the additional absorbent ammonia of circulation fluid is to add in the circulation fluid through blender in the described desulfuration absorbing tower, arranging multiplayer circulated sprinkling nozzle in the flue gas adverse current zone.Be furnished with two-stage folded plate type demister in the described desulfuration absorbing tower.Described desulfuration absorbing tower is a steel construction, the glass inner-lining scale anticorrosion, and external form is cylinder or rectangle (deciding according to actual field ground situation).
The utility model adopts rational housing structure, and control flue gas flow rate ≯ 3m/s guarantees that flue gas has adequate time with the hybrid reaction that contacts of absorbent.
The utility model adopts rational liquid-gas ratio, guarantees to have enough cleaning solution circulating ratios, the best pH value of control reaction temperature and circulation fluid.
The utility model adopts rational flue gas and absorbent counter current contacting mode, improves the utilization rate and the reaction efficiency of absorbent.
The utility model adopts two-stage folded plate type flue gas demister, can efficiently collect drop and reaction product that flue gas carries, and demister has disposed the fresh water (FW) washer jet.
The utility model adopts rational arrangement of nozzles form and selects the nozzle form that is fit to the zones of different reaction condition for use, and liquid has enough interference coverage rates.
The beneficial effects of the utility model are: this device comparative resistance is little, energy consumption is low, desulfuration efficiency is high, good reliability, do not produce secondary pollution.Solved in the conventional ammonia process that absorbent consumption big (free ammonia, aerocolloidal formation), integrated operation cost height, equipment are perishable, byproduct is difficult to problems such as recycling.
The utility model import and export direction flexible arrangement; Spray system is a unit system multilayer high position
Arrange, flexible operation, technology is reliable, takes up an area of lessly, invests less relatively.The absorption tower is not subjected to SO in the flue gas
2The restriction of content can be satisfied the requirement of flue gas desulphuization rate in a big way;
It is good that unit load is changed adaptability, can satisfy the requirement that unit load changes fully;
The utility model single-machine capacity can satisfy 300MW unit boiler exhaust gas volumn;
The desulfurization degree height, SO
2Removal efficiency:＞95%
Energy consumption is low, generally installs total power consumption:＜0.5%
The reliability height, device availability:＞95%
The circulated sprinkling tower is adopted on the utility model absorption tower, inner no porous plate of tower and filler, and tower wall smooth surface, the flow field is optimized, and circulation fluid adopts forced oxidation and mechanical agitation, and no fouling in the tower, deposition, pipeline do not have the tendency of obstruction;
The utility model circulation liquid bath is enough big; Ammonium sulfite can absorb fully, dissolving, oxidation, help the growth and the crystallization of sulphur ammonium nucleus, inferior sulfate radical is converted into the control of sulfate radical and the pH of system value, variation adaptability to the component of ammonium sulfite-ammonium bisulfite is good like this, absorbent properties guarantee easily desulfuration efficiency, and avoid the fouling and the obstruction of generation systems pipeline;
The utility model divides cloth agitating device up and down; Can fully satisfy the requirement of stirring and oxidation, the upper strata makes sulfurous acid solution fully contact with oxidation air, accelerates the oxidation reaction of imonium solution; Lower floor: make the solid matter in the circulation fluid remain on suspended state, avoid precipitating at the bottom of the liquid.Being provided with of this mode of oxidizing can improve system's oxidation effectiveness, reduces the pressure head of oxidation fan, thereby reduces investment and system's power consumption, and when long-term the stoppage in transit, agitating device all can stop up and down.
The utility model is provided with independently circulating pump setting; Each spraying layer is joined a circulating pump, and on the one hand flow, lift are accurate, guarantees the atomizing effect and the mass transfer reaction of nozzle; On the other hand can the increase system flexibility of operation, at underload and low SO
2The part circulating pump of can stopping transport during concentration increases the flexibility of operation, reduces operating cost; The impeller of third aspect circulating pump is standby few, and the high lift pump impeller can continue to use through changing to low-lift pump after the cutting process.
Adopt endless tube or big female pipe of size to arrange to the circulation fluid pipeline; Guarantee the area coverage of uniform sprinkle density and liquid level, improve desulfuration efficiency and reliability of system operation and security; System's design of optimizing, one side can reduce the liquid-gas ratio of system, can also the simplification system reduce cost; Material consumption, the energy consumption level of device are low; Can reduce the operation comprehensive cost.
The utility model is not limited to above-mentioned preferred forms, and other any identical with the utility model or akin products that anyone draws under enlightenment of the present utility model all drop within the protection domain of the present utility model.
Claims (2)
1, a kind of flue gas desulfurization sprinkle absorbing tower, comprise tower body, it is characterized in that: tower body is provided with air inlet and exhaust outlet, described air inlet is arranged on the middle and lower part of tower body, the layout of air inlet is towards the absorption tower, and it is downward-sloping, demister flusher, demister, circulation fluid shower and circulation fluid storage tank are installed in the absorption tower from top to bottom, the tower body bottom is the circulation fluid storage tank, the circulation fluid storage tank is an oxidation reaction zone, micro-hole aerator and circulation fluid agitating device are installed in the groove, on the circulation fluid storage tank magnetic turning column liquid level meter are installed.
2, flue gas desulfurization sprinkle absorbing tower as claimed in claim 1 is characterized in that: described demister is a two-stage folded plate type flue gas demister.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620138847 CN200963566Y (en) | 2006-09-28 | 2006-09-28 | Flue gas desulfurizing spraying adsorption tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620138847 CN200963566Y (en) | 2006-09-28 | 2006-09-28 | Flue gas desulfurizing spraying adsorption tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200963566Y true CN200963566Y (en) | 2007-10-24 |
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ID=38867581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620138847 Expired - Fee Related CN200963566Y (en) | 2006-09-28 | 2006-09-28 | Flue gas desulfurizing spraying adsorption tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200963566Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103223279A (en) * | 2013-04-27 | 2013-07-31 | 秦皇岛同力达环保能源工程有限公司 | Aeration-type air purifying device |
| CN103551099A (en) * | 2013-10-30 | 2014-02-05 | 江苏泰丰化工有限公司 | Spray absorber type carbonization reaction device for alkali balance in indigo production |
| CN104177861A (en) * | 2013-11-06 | 2014-12-03 | 江苏泰丰化工有限公司 | Sodium-potassium ratio adjusting device of device for recovering mixed alkali from indigo products |
| CN108483837A (en) * | 2018-04-25 | 2018-09-04 | 哈尔滨共阳科技咨询有限公司 | A kind of gas treatment equipment towards the non-degradable residue sorting of septic tank |
| CN109529593A (en) * | 2018-11-20 | 2019-03-29 | 苗逢春 | A kind of fume desulfurizing tower |
| CN112221283A (en) * | 2020-08-20 | 2021-01-15 | 苏州乔发环保科技股份有限公司 | Wet dust collector |
-
2006
- 2006-09-28 CN CN 200620138847 patent/CN200963566Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103223279A (en) * | 2013-04-27 | 2013-07-31 | 秦皇岛同力达环保能源工程有限公司 | Aeration-type air purifying device |
| CN103551099A (en) * | 2013-10-30 | 2014-02-05 | 江苏泰丰化工有限公司 | Spray absorber type carbonization reaction device for alkali balance in indigo production |
| CN104177861A (en) * | 2013-11-06 | 2014-12-03 | 江苏泰丰化工有限公司 | Sodium-potassium ratio adjusting device of device for recovering mixed alkali from indigo products |
| CN108483837A (en) * | 2018-04-25 | 2018-09-04 | 哈尔滨共阳科技咨询有限公司 | A kind of gas treatment equipment towards the non-degradable residue sorting of septic tank |
| CN109529593A (en) * | 2018-11-20 | 2019-03-29 | 苗逢春 | A kind of fume desulfurizing tower |
| CN112221283A (en) * | 2020-08-20 | 2021-01-15 | 苏州乔发环保科技股份有限公司 | Wet dust collector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU HEYICHANG ENVIRONMENT PROTECTION SCIENCE A Free format text: FORMER OWNER: YIXING HEYICHANG ENVIRONMENTAL PROTECTION CO., LTD. Effective date: 20100701 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 214200 WENZHUANG VILLAGE, YICHENG TOWN, YIXING CITY, JIANGSU PROVINCE TO: 210008 16TH FLOOR, BUILDING B, JUNLINGUOJI, NO.5, GUANGZHOU ROAD, NANJING CITY, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100701 Address after: 210008 Guangzhou road Jiangsu city Nanjing Province Dragon International B No. 5 Building 16 floor Patentee after: Jiangsu Heyichang Environmental Protection Engineering Technology Co., Ltd. Address before: 214200, Jiangsu City, Yixing Province town of Wen Village Patentee before: Yixing Heyichang Environment Protection Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071024 Termination date: 20110928 |