CN204208445U - Flue gas desulfurization denitration dust-removing integrated treatment facility - Google Patents
Flue gas desulfurization denitration dust-removing integrated treatment facility Download PDFInfo
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- CN204208445U CN204208445U CN201420628492.4U CN201420628492U CN204208445U CN 204208445 U CN204208445 U CN 204208445U CN 201420628492 U CN201420628492 U CN 201420628492U CN 204208445 U CN204208445 U CN 204208445U
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Abstract
The utility model relates to a kind of flue gas desulfurization denitration dust-removing integrated treatment facility, and it comprises purifying column, serum recycle system, accessory substance treatment system; Described purifying column bottom is provided with gas approach, tower prime cement liquid pool is provided with below gas approach, purifying column be provided with successively from bottom to top desulfurization and dedusting layer, denitration oxide layer, in and absorbed layer and final stage purification washing layer, flue gas from bottom to top by interlayer water conservancy diversion demist pipe successively through desulfurization and dedusting layer, denitration oxide layer, in and absorbed layer and final stage purification washing layer process, emptying eventually through direct exhaust chimney; Described accessory substance treatment system comprises sedimentation basin, high-order subsider, centrifuge and accessory substance drying system.Rationally, operating cost is low, desulphurization denitration stable performance, and efficiency is high, and processing cost is low, environmental protection, can not cause secondary pollution for its structure.
Description
Technical field
The utility model belongs to desulphurization denitration technical field, is specifically related to flue gas desulfurization denitration dust-removing integrated treatment facility.
Background technology
Traditional flue gas desulfurization denitration dust-removing treatment facility, need carry out dedusting, desulphurization and denitration respectively, and cause equipment investment comparatively large, whole treatment process is more complicated, and cost is high, and desulphurization and denitration unstable properties, desulphurization and denitration efficiency is lower; Current domestic and international application comparatively widely integration desulfurization denitration technology is mainly formed by wet desulphurization and SCR or SNCR technology denitration two kinds of process combination.
Wet desulfurization adopts lime method desulfurization usually, and desulfuration efficiency can reach 90%, and its shortcoming is that equipment investment is large, and floor space is large, and operating cost is high, easily forms secondary pollution.
Selective-catalytic-reduction denitrified (SCR) technology maturation is comparatively common denitrating technique, and when reaction temperature is 300 ~ 450 DEG C, denitration rate can reach more than 90%.Its shortcoming is that equipment investment is large, need carry out the pre-heat treatment to flue gas, solid catalyst expensive (accounting for initial outlay more than 40%) and service life short (3 months-3 years), and operating cost is higher, and discarded catalyst is difficult to process, causes secondary pollution.
SNCR (SNCR) denitration requires that operating temperature region is 850 ~ 1100 DEG C, and denitration rate is less than 50%.Its shortcoming is that equipment investment is large, and need the pre-heat treatment flue gas or transform burner hearth, complex process, operating cost is high, and operation easier is large, is difficult to wide popularization and application.
Because using ammonia as denitrfying agent, also there is the problem such as NH_3 leakage, the easy burn into public safety of equipment in SCR and SNCR method.
Summary of the invention
Technical problem to be solved in the utility model overcomes above-mentioned the deficiencies in the prior art, there is provided a kind of structure rationally, operating cost is low, reliability is high, desulphurization denitration stable performance under continuous service condition, and efficiency is high, operating procedure is simple, processing cost is low, environmental protection, can not cause the flue gas desulfurization denitration dust-removing integrated treatment facility of secondary pollution.
The technical scheme in the invention for solving the above technical problem is: a kind of flue gas desulfurization denitration dust-removing integrated treatment facility, is characterized in that: it comprises purifying column, serum recycle system, accessory substance treatment system; Described purifying column bottom is provided with gas approach, tower prime cement liquid pool is provided with below gas approach, above gas approach, purifying column be provided with successively from bottom to top desulfurization and dedusting layer, denitration oxide layer, in and absorbed layer and final stage purification washing layer, flue gas from bottom to top by interlayer water conservancy diversion demist pipe successively through desulfurization and dedusting layer, denitration oxide layer, in and absorbed layer and final stage purification washing layer process, emptying eventually through direct exhaust chimney; Described accessory substance treatment system comprises sedimentation basin, high-order subsider, centrifuge and accessory substance drying system.
Further, described serum recycle system include desulfurization and dedusting fluid circulation, the denitration oxidation solution circulatory system, in and serum recycle system, the fresh water (FW) circulatory system, each system adopts independent loops to control.
Further, described final stage purification washing layer top is provided with gas-liquid separator, and gas-liquid separator top connects direct exhaust chimney.
Further, described desulfurization and dedusting layer, denitration oxide layer, in and absorbed layer corresponding atomizer is installed respectively, described shower nozzle all along tower wall even circumferential distribution, spray direction is horizontal spraying.
Further, described desulfurization and dedusting layer, denitration oxide layer, in and absorbed layer and final stage purification washing layer between with interlayer baffle for separating, flue gas is entered step by step by interlayer water conservancy diversion demist pipe.
Further, in-built automatic adjustment valve in described interlayer water conservancy diversion demist pipe.
Further, in described final stage purification washing layer, lower limb arranges water leg.
Further, needed for described accessory substance drying system, thermal source is from flue high-temperature flue gas, is obtained through flue gas heat-exchange unit by outside air feed.
Utility model works process is
:
1, gas cleaningprocess
(1) high-temperature flue gas (≤240 DEG C) enters in purifying column through gas approach, and be provided with shower nozzle on described desulfurization and dedusting layer top, the desulfurization and dedusting liquid sprayed into fully mixes with high-temperature flue gas, high-temperature flue gas is lowered the temperature, desulfurization, removal NO
2, dedusting, described desulfurization and dedusting layer selects liquid-gas ratio to be 2 ~ 4, and flue-gas temperature can be down to 60 ~ 70 DEG C, meanwhile, contained SO in flue gas
2, NO
2and solid-state dust granules be desulfurized dedusting liquid absorb adsorbing separation bring to tower prime cement liquid pool, the flue gas after washing enters step (2) through interlayer water conservancy diversion demist pipe.
(2) flue gas from step (1) enters denitration oxide layer, and described denitration oxide layer middle and upper part is provided with shower nozzle, sprays into containing ClO
2the denitration oxidizing agent solution of composition fully mixes with flue gas, contained NO in oxidant consumption and flue gas
xweight ratio be 1 ~ 5:20, spray liquid-gas ratio is 2 ~ 3, denitration oxide layer reaction temperature 30 ~ 50 DEG C, through the effect of oxidant, contained NO and SO in flue gas
2oxidized generation NO
2and SO
3, after part is absorbed by denitration oxidizing agent solution, after generating the interlayer baffle collection of acid slurries through arranging bottom described denitration oxide layer, return denitration grout case for oxidant activation, all the other NO
2and SO
3step (3) is entered through interlayer water conservancy diversion demist pipe with flue gas.
(3) in entering from the flue gas of step (2) and absorbed layer, in described and absorbed layer top arranges shower nozzle, spray into containing in alkaline absorbent and slurries fully mix with flue gas, to NO contained by flue gas
2and SO
3carry out neutralization to absorb, generate nitrate, sulfate etc., in being dissolved in and in slurries, and with slurries after the interlayer baffle collection arranged in described and bottom absorbed layer, with loop slurry case in returning, the flue gas after purification enters step (4) through interlayer water conservancy diversion demist pipe.
(4) flue gas from step (3) purifies after the top water purification spray washing washing layer setting through described final stage, removes the NO of remnants in flue gas further
2and SO
3and the alkaline absorbent that may carry secretly, complete the deep purifying to flue gas, after flue gas after purification removes drop after gas-liquid separator, discharged by direct exhaust chimney, the interlayer dividing plate that liquid after washing is arranged bottom described final stage purification washing layer enters level water conservancy diversion demister, be back to water leg, derive outside tower to clear water circulating slot.
2, serum recycle process
Described desulfurization and dedusting fluid circulation takes out slurries by purifying column prime cement liquid pool, after the outer water cooling tower cooling of tower, shower nozzle through being arranged at described desulfurization and dedusting layer top sprays into, with enter tower high-temperature flue gas and fully contact, realize cooling dedusting and preliminary desulfurization, in tower prime cement liquid pool, slurries are regularly expelled to sedimentation basin, enter accessory substance treatment system.
The described denitration oxidation solution circulatory system provides the oxidation solution of the denitration containing finite concentration oxidant by denitration loop slurry case, shower nozzle through being arranged at described denitration oxide layer top sprays into, fully mix with flue gas in tower, complete after pollutant oxidation reaction in flue gas, slurries return denitration loop slurry case after described denitration oxide layer interlayer baffle collection.Need regular replenishment oxidant in denitration loop slurry case, and regularly discharge a certain amount of lower floor slurries to sedimentation basin, enter accessory substance treatment system.
In described and serum recycle system by and loop slurry case provide containing in finite concentration alkaline absorbent and slurries, through be arranged at described in and the shower nozzle on absorbed layer top spray into, fully mix with flue gas in tower, complete after the neutralization of pollutant in flue gas is absorbed, slurries through in described and after absorbed layer interlayer baffle collection, in returning and loop slurry case.In and need regular replenishment alkaline absorbent in loop slurry case, and regularly discharge a certain amount of lower floor slurries to sedimentation basin, enter accessory substance treatment system.
The described fresh water (FW) circulatory system, clear water circulating slot is set, connect external water system, the shower nozzle of water purification through being arranged at described final stage purification washing layer top setting sprays into, after completing the purification and washing to final stage flue gas, be collected to water leg through interlayer dividing plate by final stage interlayer water conservancy diversion demist pipe, export to the outer clear water circulating slot of tower.Meanwhile, direct exhaust chimney condensed water and gas-liquid separator separates water out is also collected by water leg and is exported to the outer clear water circulating slot of tower.Water in described clear water circulating slot except as except gas cleaning slurry, also for each procedure technology moisturizing.
3, accessory substance processing procedure
The slurries of discharging in described serum recycle process enter accessory substance treatment system, treatment step:
(1) first described discharge slurries enter sedimentation basin, and through sedimentation, initial gross separation byproduct precipitate, supernatant returns the cyclic process of desulfurization and dedusting liquid.
(2) byproduct precipitate of described initial gross separation is delivered to high-order subsider, further sedimentation thickening.
(3) sediment compared with stiff of described high-order subsider generation is after centrifuge is separated, and obtain the solid by-product that water content is lower, the filtered fluid after separation returns the cyclic process of desulfurization and dedusting liquid.
(4) solid by-product that obtains of described centrifuge separation is after accessory substance drying system drying process, obtain have certain economic value, can the byproduct of packing and storing.
(5) needed for described accessory substance drying system, thermal source is obtained from high-temperature flue gas by heat exchanger, avoids using high-temperature steam, reduces processing cost further.
The utility model structure rationally, the Function Integration Mechanism such as desulphurization and denitration, dedusting is integrated, coordinate four serum recycle systems and accessory substance treatment system, define the desulfur denitrate dust collecting system of complete set, and certain economic benefit can be produced by high efficiente callback accessory substance, efficiently solve the problem that conventional treatment method operating cost is high, and process stabilizing, without any discharging of waste liquid, reduce the discharge of PM2.5 pollutant, secondary pollution is not produced, solid waste and wastewater zero discharge in running.The utility model automatic control system is according to smoke discharge amount and flue gas component analysis and emission control index request, the technological parameters such as automatic adjustment treatment agent quantity delivered, automatically various operating mode smoke condition can be adapted to, and adjust running parameter in real time according to up-to-date discharge index, meet emission request.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model.
Label in figure is: 1. purifying column, 2. final stage purification washing layer, 3. interlayer water conservancy diversion demist pipe, 4. automatically regulate valve, 5. in and absorbed layer, 6. denitration oxide layer, 7. desulfurization and dedusting layer, 8. tower prime cement liquid pool, 9. gas approach, 10. flue high-temperature flue gas, 11. outside air feeds, 12. flue gas heat-exchange units, 13. high-order subsiders, 14. accessory substance drying systems, 15. centrifuges, 16. clean solution tank, 17. sedimentation basins, 18. water cooling towers, 19. denitration loop slurry casees, 20. loop slurry casees, 21. clear water circulating slots, 22. water legs, 23. purification water washing spray heads, 24. direct exhaust chimneys, 25. gas-liquid separators, 26. interlayer dividing plates, 27. interlayer dividing plates, 28. interlayer dividing plates, 29. shower nozzles, 30. shower nozzles, 31. shower nozzles.
Detailed description of the invention
As can be seen from Figure 1, a kind of flue gas desulfurization denitration dust-removing integrated treatment facility, it comprises purifying column, serum recycle system, accessory substance treatment system; Described serum recycle system include desulfurization and dedusting fluid circulation, the denitration oxidation solution circulatory system, in and serum recycle system, the fresh water (FW) circulatory system.
The bottom of described purifying column 1 is provided with gas approach 9, and the bottom of described purifying column 1 is provided with tower prime cement liquid pool 8, from described gas approach 9 upwards, set gradually desulfurization and dedusting layer 7, denitration oxide layer 6, in and absorbed layer 5 and final stage purification washing layer 2.
Accessory substance treatment system comprises sedimentation basin 17, clean solution tank 16, high-order subsider 13, centrifuge 15, flue gas heat-exchange unit 12 and accessory substance drying system 14.
Described desulfurization and dedusting layer 7, denitration oxide layer 6, in and absorbed layer 5 and final stage purification washing layer 2 between with interlayer water conservancy diversion demist pipe 3-3,3-2,3-1 be communicated with, flue gas upwards flows successively from interlayer water conservancy diversion demist pipe 3-3,3-2,3-1.
Described interlayer water conservancy diversion demist pipe 3-3,3-2,3-1 are all evenly distributed along purifying column 1 circumference, and quantity is 12-16.
Arrange in described interlayer water conservancy diversion demist pipe 3-1,3-2,3-3 and automatically regulate valve 4, valve opening automatically can be regulated right according to flue gas flow size, under adapting to different operating mode, flue gas discharge rate changes.
Described desulfurization and dedusting layer 7 top is provided with shower nozzle 31, distribute along tower wall even circumferential, quantity is 10 ~ 20, for spraying into tower prime cement liquid in tower, to by gas approach 9, the high-temperature flue gas entered in tower carries out mist cooling, high-temperature flue-gas is down to 60 DEG C from 160 DEG C, and the slurries simultaneously sprayed into by described shower nozzle 31 mix with smoke height, remove most of NO in flue gas
2, SO
2, SO
3with most solid dust, the flue gas after process enters denitration oxide layer 6 after interlayer water conservancy diversion demist pipe 3-3 removes water smoke.
Described denitration oxide layer 6 top is provided with shower nozzle 30, and along the distribution of tower wall even circumferential, quantity is 10 ~ 20, for spraying into the denitration oxidation solution containing oxidant in tower, by NO and SO in flue gas
2easy-to-handle NO is generated Deng oxidation
2and SO
3, part NO
2and SO
3be dissolved in the denitration oxidation solution that shower nozzle 30 sprays into, after being collected by the interlayer dividing plate 28 arranged bottom described denitration oxide layer 6, derive tower outer to denitration loop slurry case 19, the activation of further promotion denitration oxidant, with absorbed layer 5 during the flue gas after process enters after interlayer water conservancy diversion demist pipe 3-2 removing water smoke.
In described and absorbed layer 5 top is provided with shower nozzle 29, and along the distribution of tower wall even circumferential, quantity is 10 ~ 20, for spraying into containing in NaOH and slurries in tower, by the NO in flue gas
2and SO
3neutralization absorbs, and generates soluble sodium salt, with in spraying into and slurries have described in and after the interlayer dividing plate 27 that arranges bottom absorbed layer 5 collects, derive tower outer in and loop slurry case 20.Flue gas after process enters final stage purification washing layer 2 after interlayer water conservancy diversion demist pipe 3-1 removes water smoke.
In the tower of the interlayer water conservancy diversion demist pipe 3-1 that in described and absorbed layer 5 top is arranged, lower limb is provided with water leg 22.
Described final stage purification washing layer 2, center upper portion arranges purification water washing spray head 23, sprays into purification water in tower, NO remaining in removing flue gas further
2and SO
3and the alkaline absorbent that may carry secretly.
Described final stage purification washing layer 2 top is provided with gas-liquid separator 25, connects direct exhaust chimney 24.The flue gas completing purification removes water smoke and after the drop that may carry secretly through described gas-liquid separator 25, emptying through described direct exhaust chimney 24.
Be provided with interlayer dividing plate 26 bottom described final stage purification washing layer 2, by the water shunting after purification washing to tower inner rim, enter described water leg 22 through described interlayer water conservancy diversion demist pipe 3-1, derivation tower is outer to clear water circulating slot 21.
Be solution in described tower prime cement liquid pool 8, after extracting out at the bottom of tower after water cooling tower 18 is cooled to 35 ~ 40 DEG C, spray in tower through described shower nozzle 31, fully mix with the high-temperature flue gas entered in tower by described gas approach 9, reach the effect of cooling, dedusting, desulfurization.Spray reacted slurries and enter tower prime cement liquid pool 8, complete the cyclic process of desulfurization and dedusting liquid.
In described tower prime cement liquid pool 8, slurries are regularly expelled to sedimentation basin 17, enter accessory substance treatment system.
Described tower prime cement liquid pool supplements NaOH, to keep desired concn automatically according to pH value.
For containing ClO in described denitration loop slurry case 19
2oxidizing agent solution, spray in tower through described shower nozzle 30, fully mix with flue gas in tower, complete denitration oxidation.Spray reaction rear slurry returns denitration loop slurry case 19 after interlayer dividing plate 28 is collected, and completes the cyclic process of denitration oxidation solution.
In described denitration loop slurry case 19, slurries are controlled by valve 34, are regularly expelled to sedimentation basin 17, enter accessory substance treatment system.
Quantitative supplemental oxidant in described denitration loop slurry case 19, to keep desired concn.
Described tower prime cement liquid pool supplements NaOH, to keep desired concn automatically according to pH value.
With solution in loop slurry case 20 in described, spray in tower through described shower nozzle 29, fully mix with flue gas in tower, to the NO in flue gas
2, SO
3etc. carrying out neutralization absorption, completing in flue gas and absorbing.Spray reacted slurries return after interlayer dividing plate 27 is collected in and loop slurry case 20, in completing and serum recycle process.
Controlled by valve 33 with slurries in loop slurry case 20 in described, be regularly expelled to sedimentation basin 17, enter accessory substance treatment system.
Automatically NaOH is supplemented, to keep desired concn according to pH value in described and in loop slurry case 20.
Described shower nozzle 29,30,31 is uniformly distributed installation along tower wall periphery, and every number of plies amount 10-20, spray direction is horizontal spraying.
Described clear water circulating slot 21 connects external fluid delivery conduit road, so that system process moisturizing.Be general technology water in clear water circulating slot 21, spray in tower through described shower nozzle 23, complete the final purification and washing of flue gas, the pollutant that removing is residual and the treatment agent that may carry secretly, tower inner rim is collected to through described interlayer dividing plate 26, enter described water leg 22 through interlayer water conservancy diversion demist pipe 3-1, derive outside tower and return clear water circulating slot 21, complete fresh water (FW) cyclic process.Described clear water circulating slot 21 is also provided with valve 32 and controls, and regularly discharges clear water to sedimentation basin 17, enters accessory substance treatment system.
Described sedimentation basin 17 is for carrying out preliminary sedimentation to the slurries of discharging in cyclic process each in tower, and top overflow clear liquid enters clean solution tank 16 sedimentation further.
Be solid dust sediment bottom described sedimentation basin 17, answer periodic cleaning.
Described sedimentation basin 17 middle and upper part and described clean solution tank 16 bottom are accessory substance crystallization sedimentation, the sedimentation thickening further of high-order subsider 13 is delivered to after extraction, crystalline deposit timing after thickening is expelled to centrifuge 13 and carries out Separation of Solid and Liquid, obtains the solid by-product of water content≤14% ~ 20%.
The filtered fluid that place's supernatants such as described sedimentation basin 17, clean solution tank 16, high-order subsider 13 and centrifuge 15 produce all sends described tower prime cement liquid pool 8 back to, continues to participate in the cyclic process of desulfurization and dedusting liquid.
The solid by-product that described centrifuge 15 is discharged is sent into accessory substance drying system 14 and is carried out dry process further, finally obtains the accessory substance crystallization of below water content≤3%, directly can pack warehouse-in.
Needed for described accessory substance drying system 14, thermal source is obtained from former flue high-temperature flue gas 10 through flue gas heat-exchange unit 12 by outside air feed 11.
The desulfur denitrate dust collecting system structure design advantages of simple that the utility model provides, the Function Integration Mechanism such as desulphurization and denitration, dedusting is integrated, four serum recycle systems are coordinated to realize single stripper operation, and be equipped with accessory substance treatment system, define the desulfur denitrate dust collecting system of complete set, and high efficiente callback accessory substance produces economic benefit, efficiently solve the problem that conventional treatment method investment is large, operating cost is high.Whole treatment process is highly stable, effectively reduces PM2.5 pollutant emission, does not produce secondary pollution, solid waste and wastewater zero discharge in running.
The utility model utilizes automatic control system according to smoke discharge amount and flue gas component analysis and emission control index request, the technological parameters such as automatic adjustment treatment agent quantity delivered, automatically various operating mode smoke condition can be adapted to, and adjust running parameter in real time according to up-to-date discharge index, meet emission request.
Concrete, the utility model tool has the following advantages:
1, system authority advantages of simple, the function such as desulphurization and denitration, dedusting height is integrated, and single tower can complete three kinds of functions.
2, adopt containing part ClO
2the high-efficient oxidant of component carries out oxidation processes to the NO being difficult in flue gas remove, and adopts antalkali to carry out absorption process, and denitration efficiency is up to more than 95%.
3, do not adopt catalyst and ammonia-method denitration, denitration reaction temperature low (30 ~ 50 DEG C), operating cost is low, running environment safety.
4, the different phase of fume treatment adopts interlayer baffle for separating, forms independent loops and controls, avoid the mutual interference between different disposal medicament, improve removal efficiency.
5, different disposal level is connected to form exhaust gases passes by arranging interlayer water conservancy diversion demist pipe outside tower, and flue gas demist is effective, and in tower, flue gas mixes, and liquid solid/liquid/gas reactions efficiency is high.
6, establish in interlayer water conservancy diversion demist pipe and automatically regulate valve, automatically can adapt to flue gas flow change under different operating mode, without the need to artificial adjustment.
7, serum recycle system at different levels have employed the mode of regularly discharging slurries, avoids the too high generation causing the problems such as crystallization inside tower, fouling, blocking of purifying column Inner eycle concentration of slurry.
8, purifying column adopts void tower circumferential level spray pattern, farthest reduces gas by resistance, decreases blower fan electric energy loss.
9, adopt to purify waste water thoroughly process is absorbed to the amounts of residual contamination in flue gas and the treatment agent carried secretly, reduce PM2.5 discharge capacity simultaneously.
10, in direct exhaust chimney import department, extraordinary gas-liquid separator is installed, avoids discharging flue gas and carry droplet secretly.
11, by accessory substance treatment system, the accessory substance that desulphurization denitration generates is reclaimed, obtain and for the solid product of packing and storing, accessory substance economic worth can be further increased, reduce smoke processing system operating cost.
12, adopt former flue high-temperature flue gas as accessory substance Drying Source, save energy resource consumption.
13, in tower, water leg is set, effectively reclaims spray water purification and the issuable condensate return of tower top direct exhaust chimney, save water resource.
14, in view of the independent controllability of the circulatory system at different levels, the utility model can realize changing and flue gas flow, composition transfer situation under various operating mode according to the discharge index of environmental requirement, the quantity delivered of the various treatment agent of real-time control, without the need to manual intervention, without the need to reforming equipment.
Claims (8)
1. a flue gas desulfurization denitration dust-removing integrated treatment facility, is characterized in that: it comprises purifying column, serum recycle system, accessory substance treatment system; Described purifying column bottom is provided with gas approach, tower prime cement liquid pool is provided with below gas approach, above gas approach, purifying column be provided with successively from bottom to top desulfurization and dedusting layer, denitration oxide layer, in and absorbed layer and final stage purification washing layer, flue gas from bottom to top by interlayer water conservancy diversion demist pipe successively through desulfurization and dedusting layer, denitration oxide layer, in and absorbed layer and final stage purification washing layer process, emptying eventually through direct exhaust chimney; Described accessory substance treatment system comprises sedimentation basin, high-order subsider, centrifuge and accessory substance drying system.
2. flue gas desulfurization denitration dust-removing integrated treatment facility according to claim 1, it is characterized in that: described serum recycle system include desulfurization and dedusting fluid circulation, the denitration oxidation solution circulatory system, in and serum recycle system, the fresh water (FW) circulatory system, each system adopts independent loops to control.
3. flue gas desulfurization denitration dust-removing integrated treatment facility according to claim 1, is characterized in that: described final stage purification washing layer top is provided with gas-liquid separator, and gas-liquid separator top connects direct exhaust chimney.
4. flue gas desulfurization denitration dust-removing integrated treatment facility according to claim 1, it is characterized in that: described desulfurization and dedusting layer, denitration oxide layer, in and absorbed layer corresponding atomizer is installed respectively, described shower nozzle is all along the distribution of tower wall even circumferential, and spray direction is horizontal spraying.
5. flue gas desulfurization denitration dust-removing integrated treatment facility according to claim 1, it is characterized in that: described desulfurization and dedusting layer, denitration oxide layer, in and absorbed layer and final stage purification washing layer between with interlayer baffle for separating, flue gas is entered step by step by interlayer water conservancy diversion demist pipe.
6. flue gas desulfurization denitration dust-removing integrated treatment facility according to claim 1, is characterized in that: in-built automatic adjustment valve in described interlayer water conservancy diversion demist pipe.
7. flue gas desulfurization denitration dust-removing integrated treatment facility according to claim 1, is characterized in that: in described final stage purification washing layer, lower limb arranges water leg.
8. flue gas desulfurization denitration dust-removing integrated treatment facility according to claim 1, is characterized in that: needed for described accessory substance drying system, thermal source is from flue high-temperature flue gas, is obtained through flue gas heat-exchange unit by outside air feed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420628492.4U CN204208445U (en) | 2014-10-28 | 2014-10-28 | Flue gas desulfurization denitration dust-removing integrated treatment facility |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420628492.4U CN204208445U (en) | 2014-10-28 | 2014-10-28 | Flue gas desulfurization denitration dust-removing integrated treatment facility |
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ID=52977157
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105013312A (en) * | 2015-07-27 | 2015-11-04 | 航天环境工程有限公司 | Desulfurization and denitration integration absorbing device and application |
| CN106334432A (en) * | 2015-07-14 | 2017-01-18 | 上海三卿环保科技有限公司 | Device and method for activation of oxidizing agent through desulphurization denitration circulation solution |
| CN106975357A (en) * | 2017-04-28 | 2017-07-25 | 张久明 | A kind of desulphurization and denitration, flue dust solid matter retracting device and its recycling and control method |
-
2014
- 2014-10-28 CN CN201420628492.4U patent/CN204208445U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106334432A (en) * | 2015-07-14 | 2017-01-18 | 上海三卿环保科技有限公司 | Device and method for activation of oxidizing agent through desulphurization denitration circulation solution |
| CN105013312A (en) * | 2015-07-27 | 2015-11-04 | 航天环境工程有限公司 | Desulfurization and denitration integration absorbing device and application |
| CN106975357A (en) * | 2017-04-28 | 2017-07-25 | 张久明 | A kind of desulphurization and denitration, flue dust solid matter retracting device and its recycling and control method |
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