CN207511866U - A kind of device of desulfurization wastewater zero-emission using rotating spraying mode - Google Patents
A kind of device of desulfurization wastewater zero-emission using rotating spraying mode Download PDFInfo
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- CN207511866U CN207511866U CN201721514054.5U CN201721514054U CN207511866U CN 207511866 U CN207511866 U CN 207511866U CN 201721514054 U CN201721514054 U CN 201721514054U CN 207511866 U CN207511866 U CN 207511866U
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Abstract
The device of a kind of desulfurization wastewater zero-emission using rotating spraying mode, including wastewater feed material system（18）, flue gas system（20）, Tower System of spraying（19）And system for desulfuration and denitration（21）；Wastewater feed material system（18）Including waste water pretreatment system（7）, waste water pump（8）；Spraying Tower System（19）Including drying tower（6）, rotary atomizer（5）, rotary atomizer（5）It is equipped with gas distributor（4）And high water tank（9）；Flue gas system（20）Including damper（3）, expansion joint（2）, flue（1）；System for desulfuration and denitration（21）Including deduster（10）, wet desulfuration tower（11）, chimney（12）, air preheater（13）, boiler（14）, denitrification apparatus（15）.Using the professional rotary atomizer of suitable desulfurization wastewater physical property, realize that solution is converted to fine mist, it is ensured that the fineness and the uniformity of droplet.Compared to double-current atomizer, it is not easy to plug and wears.The utility model realizes desulfurization wastewater zero-emission, and cost, operating cost are cheap.
Description
Technical field
The utility model belongs to field of environment protection, and in particular to a kind of desulfurization wastewater zero-emission using rotating spraying mode
The device put.
Background technology
At present, most domestic coal fired power plant has installed flue gas desulfurization device, and more than 85% is wet process of FGD（WFGD）
Technology, but this method has larger waste water handling problem.In order to control the Cl- of desulfuration absorbing tower lime stone loop slurry,
The concentration of the harmful elements such as F- and tiny dust granule concentration enrichment degree reduce corrosion and blocking of the slurries to equipment, simultaneously
The flying dust being washed down in flue gas is discharged, it is necessary to a certain amount of waste water is discharged from system, so as to ensure that WFGD system is transported
Capable security reliability.
Wastewater treatment is more using neutralization coagulating sedimentation technology, evaporative crystallization technique, flue evaporation technique at present.It neutralizes
Coagulating sedimentation technology is the processing method of current most domestic desulfurization wastewater, but can not achieve wastewater zero discharge, and handles
Water quality is not often up to standard afterwards.This method has been unable to meet the environmental requirement of country.
Evaporative crystallization technique can realize desulfurization wastewater zero-emission, but high with investment height, operation energy consumption, pretreatment softening medicine
The problems such as solid waste processing cost that agent is costly, evaporative crystallization generates is high, Difficulty.
Flue evaporation technique be desulfurization wastewater is atomized using double fluid atomization nozzle and is sprayed into air preheater and deduster it
Between flue in, using fume afterheat by waste water evaporating completely, the pollutant in waste water is made to be converted into crystal or salt, with flying
Ash is trapped together by follow-up electric precipitator, the existing application example in the country, and the technology is relatively low there are processing capacity, it is impossible to fully achieve
Wastewater zero discharge requirement, designs or wet wall phenomenon occurs according to improper be easy to cause in flue, dust is hardened, accumulation is more, leads
The excessive influence boiler operatiopn of resistance is caused, situations such as nozzle wear blocks in operational process, and atomization declines.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of desulfurization wastewater zero-emission using rotating spraying mode
The device put, including wastewater feed material system, flue gas system, spray Tower System and system for desulfuration and denitration；The wastewater feed material system
Including waste water pretreatment system, waste water pretreatment system is equipped with waste water pump；The wastewater feed material system is equipped with spray tower system
System, spraying Tower System include drying tower, and the drying tower is equipped with rotary atomizer, and the rotary atomizer is equipped with gas point
Cloth device and high water tank, high water tank are connect with the waste water pump of wastewater feed material system；The spraying Tower System is equipped with flue gas system
System, flue gas system include damper, and the gas distributor for Tower System of spraying is connect with damper, and damper is equipped with swollen
Swollen section, expansion joint are equipped with flue, and the drying tower side for Tower System of spraying is equipped with damper and flue；The flue is equipped with
System for desulfuration and denitration, system for desulfuration and denitration include deduster, the flue and desulphurization denitration of deduster one end connection drying tower side
The air preheater of system, air preheater one end connection boiler, the other end connect the cigarette on denitrification apparatus and gas distributor
Road, air preheater are formed into a loop with boiler and denitrification apparatus；The deduster other end connect wet desulfuration tower, wet desulfuration tower with
Chimney connects.
Further, rotary atomizer is equipped with atomizing wheel, is atomized 5-2000kg/h, rotating speed 10000r.p.m-
25000r.p.m。
Further, gas distributor takes volute type structure, which is provided with wind deflector.
Further, drying tower takes rounded cylindrical structure, and bottom is cone.
The beneficial effects of the utility model are：
1）Using the professional rotary atomizer of suitable desulfurization wastewater physical property, the high speed centrifugation of rotary atomizer atomizing wheel is utilized
Rotation, makes feed liquid be stretched to film on surface of revolution, when leaving atomization plate edge, realizes that solution is converted to fine mist, really
Protect the fineness and the uniformity of droplet.Compared to double-current atomizer, it is not easy to plug and wears.Rotary atomizer has the characteristics that:
1）Atomization ability is strong, aerosolizable 5-2000kg/h, this is that single atomizer is not realized.2）Rotary atomizer is by a high speed
What rotation was atomized liquid, this is low to the purity requirements of the liquid of required atomization, does not need to be pressurized, it is not required that compression
Air.It is simple for process, reliable.3）The rotating speed of rotary atomizer is adjustable, between 10000`20000r.p.m, in atomized liquid stream
When amount changes, by adjusting rotating speed, so that it may reach good atomizing effect.
2）Using gas distributor：Hot-air is enable to be divided into direct current and eddy flow two parts, ensure under minimum exhaust gas volumn with
Droplet is sufficiently mixed, and realization is quickly evaporated, steams thoroughly, and the salt in waste water is become solid state.Gas distributor takes scroll casing type
Structure is made of wind deflector etc..After hot wind enters scroll casing type gas distributor, enter distributor in tangent line rotation status, leading
Uniform spiral formula enters in spray tower and carries out exchanging for heat and matter with atomization feed liquid under the action of aerofoil.The master of gas distributor
It acts on and exactly uniformly sending the hot wind by heating in drying tower, and ensure to enter the not inclined wind of hot wind in drying tower,
And in rotation status.
3）The energy evaporated by the use of former flue gas heat as desulfurization wastewater, is not required to additional energy source, and operating cost is low.
4）Desulfurization wastewater evaporation carries out in the drying tower being separately provided, and does not influence boiler and smoke eliminator principal series
System；High temperature evaporation is rapid and drying tower is less scaling；System reliability is high.Drying tower takes rounded cylindrical structure, tower body diameter
Greatly, bottom is cone.Hot wind enters after scroll casing type distributor and enters drying tower in rotation status, turns with high-speed rotating atomizing disk
To opposite.Hot wind releases rapidly with atomization feed liquid and is evaporated atomized liquid, and heat, mass transter process carry out rapidly, atomized liquid
Do not reach barrel to be just evaporated, so barrel is less scaling.Hot wind is also quickly cooled to 150 degree or so simultaneously, carries a small amount of
Flying dust is entered by exhaust pass in deduster.
The utility model advantageous effect is that high temperature evaporation is rapid and drying tower is less scaling, pot hardened without dust in flue
Stove operation is smooth, and nozzle blocking not easy to wear, atomization significantly improve in operational process.It realizes desulfurization wastewater zero-emission, makes
Valency, operating cost are cheap.
Description of the drawings
Fig. 1 is the utility model structure chart.
Fig. 2 is the utility model rotary atomizer enlarged drawing.
Fig. 3 is the utility model gas distributor enlarged drawing.
Fig. 4 is the utility model gas distributor sectional view.
In figure, 1. flues, 2. expansion joints, 3. dampers, 4. gas distributors, 5. rotary atomizers, 6. is dry
Dry tower, 7. waste water pretreatment systems, 8. waste water pumps, 9. high water tanks, 10. dedusters, 11. wet desulfuration towers, 12. cigarettes
Chimney, 13. air preheaters, 14. boilers, 15. denitrification apparatus, 16. atomizing wheels, 17. wind deflectors, 18. wastewater feed material systems,
19. Tower System of spraying, 20. flue gas systems, 21. system for desulfuration and denitration.
Specific embodiment
The device of a kind of desulfurization wastewater zero-emission using rotating spraying mode, including wastewater feed material system 18, flue gas system
System 20, spray Tower System 19 and system for desulfuration and denitration 21；Wastewater feed material system 18 includes waste water pretreatment system 7, and waste water is located in advance
Reason system 7 is equipped with waste water pump 8；Wastewater feed material system 18 is equipped with spraying Tower System 19, and spraying Tower System 19 includes drying tower
6, drying tower 6 is equipped with rotary atomizer 5,5 bottom of rotary atomizer installation atomizing wheel 16.Rotary atomizer 5 is equipped with gas
Distributor 4 and high water tank 9；Gas distributor 4 uses volute type structure, equipped with wind deflector 17；High water tank 9 and wastewater feed material
The waste water pump 8 of system 18 connects；Tower System 19 of spraying is equipped with flue gas system 20, and flue gas system 20 includes damper 3, spraying
The gas distributor 4 of Tower System 19 is connect with damper 3, and damper 3 is equipped with expansion joint 2, and expansion joint 2 is equipped with flue
1,6 side of drying tower of spraying Tower System 19 is equipped with damper 3 and flue 1；Described two flues 1 are equipped with desulphurization denitration system
System 21, system for desulfuration and denitration 21 include deduster 10, the flue 1 and desulphurization denitration of 10 one end of deduster, 6 side of connection drying tower
The air preheater 13 of system 21,13 one end of air preheater connection boiler 14, other end connection denitrification apparatus 15 and gas point
Flue 1 on cloth device 4, air preheater 13 are formed into a loop with boiler 14 and denitrification apparatus 15；The connection of 10 other end of deduster is wet
Method desulfurizing tower 11, wet desulfuration tower 11 are connect with chimney 12.
The course of work：The mist drop that desulfurization wastewater is atomized into about 10 ~ 60 μm of grain size by rotary atomizer 5 sprays into drying tower
In 6,14 heat smoke of boiler before air preheater 13 is utilized（350 degree or so）As heat source, by waste water in spray drying tower 6
Evaporation, heat smoke are cooled to 150 degree or so, and moisture enters in flue gas after cooling, the bottom ash formed after the disposition of drying tower 6
And the salt being precipitated falls into 6 bottom end of drying tower and is collected and is transported to power plant, is used as to pave the way or brickmaking.Remaining a small amount of flying dust is with cooling
Flue gas afterwards enters deduster 10 and handles, and achievees the purpose that desulfurization wastewater zero-emission.Enter dedusting with flue gas after cooling on a small quantity
Flying dust moisture content≤2% of device 10, chlorinity is less than 6/10000ths in flying dust, does not influence the recycling of flying dust.Through drying tower
6 dried flue gases after cooling enter in system for desulfuration and denitration 21 in the inlet duct of deduster 10, due to the evaporation of waste water,
Smoke moisture is increased, so as to which the fly ash resistivity for making all flue gases in system for desulfuration and denitration 21 is reduced, is conducive to improve
The efficiency of dust collection of deduster 10.The higher flue gas of the part humidity is cooled down in wet desulfuration tower 11, becomes wet desulfuration tower 11 afterwards
Supplement water so that the rate of water make-up of the industry water per hour of wet desulfuration tower 11 is accordingly reduced.It is generated through wet desulfuration tower 11
Desulfurization wastewater 100% can have been handled.
Claims (4)
1. a kind of device of desulfurization wastewater zero-emission using rotating spraying mode, it is characterised in that：Including wastewater feed material system
（18）, flue gas system（20）, Tower System of spraying（19）And system for desulfuration and denitration（21）；The wastewater feed material system（18）Including useless
Water pretreatment system（7）, waste water pretreatment system（7）It is equipped with waste water pump（8）；The wastewater feed material system（18）It is equipped with spray
Mist Tower System（19）, Tower System of spraying（19）Including drying tower（6）, the drying tower（6）It is equipped with rotary atomizer（5）, institute
State rotary atomizer（5）It is equipped with gas distributor（4）And high water tank（9）, high water tank（9）With wastewater feed material system（18）
Waste water pump（8）Connection；The spraying Tower System（19）It is equipped with flue gas system（20）, flue gas system（20）Including damper
（3）, Tower System of spraying（19）Gas distributor（4）With damper（3）Connection, damper（3）It is equipped with expansion joint
（2）, expansion joint（2）It is equipped with flue（1）, Tower System of spraying（19）Drying tower（6）Side is equipped with damper（3）And flue
（1）；The flue（1）It is equipped with system for desulfuration and denitration（21）, system for desulfuration and denitration（21）Including deduster（10）, deduster
（10）One end connects drying tower（6）The flue of side（1）And system for desulfuration and denitration（21）Air preheater（13）, air preheat
Device（13）One end connects boiler（14）, other end connection denitrification apparatus（15）And gas distributor（4）On flue（1）, air
Preheater（13）With boiler（14）And denitrification apparatus（15）Forming circuit；Deduster（10）The other end connects wet desulfuration tower
（11）, wet desulfuration tower（11）With chimney（12）Connection.
2. a kind of device of desulfurization wastewater zero-emission using rotating spraying mode described in accordance with the claim 1, feature exist
In：The rotary atomizer（5）It is equipped with atomizing wheel（16）, it is atomized 5-2000kg/h, rotating speed 10000r.p.m-
25000r.p.m。
3. a kind of device of desulfurization wastewater zero-emission using rotating spraying mode described in accordance with the claim 1, feature exist
In：The gas distributor（4）Volute type structure is taken, which is provided with wind deflector（17）.
4. a kind of device of desulfurization wastewater zero-emission using rotating spraying mode described in accordance with the claim 1, feature exist
In：The drying tower（6）Rounded cylindrical structure is taken, bottom is cone.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721514054.5U CN207511866U (en) | 2017-11-14 | 2017-11-14 | A kind of device of desulfurization wastewater zero-emission using rotating spraying mode |
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|---|---|---|---|
| CN201721514054.5U CN207511866U (en) | 2017-11-14 | 2017-11-14 | A kind of device of desulfurization wastewater zero-emission using rotating spraying mode |
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| Publication Number | Publication Date |
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| CN207511866U true CN207511866U (en) | 2018-06-19 |
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| CN201721514054.5U Active CN207511866U (en) | 2017-11-14 | 2017-11-14 | A kind of device of desulfurization wastewater zero-emission using rotating spraying mode |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108793296A (en) * | 2018-07-19 | 2018-11-13 | 江苏京源环保股份有限公司 | A kind of high-temperature flue gas processing desulfurization wastewater drying tower and processing method |
| CN109133234A (en) * | 2018-10-10 | 2019-01-04 | 江苏海澜正和环境科技有限公司 | A kind of desulfurization wastewater Zero discharging system |
| CN109987772A (en) * | 2019-05-16 | 2019-07-09 | 江苏正士环保科技有限公司 | A kind of method of low-cost processes waste water |
| CN110627150A (en) * | 2019-09-23 | 2019-12-31 | 北京化工大学 | Continuous treatment method and device for zero discharge of high-concentration high-salinity wastewater |
| CN110803732A (en) * | 2019-11-29 | 2020-02-18 | 济南山源环保科技有限公司 | Drying and solidifying device for zero discharge of wastewater |
| CN110947349A (en) * | 2019-12-24 | 2020-04-03 | 上海天晓环保工程有限公司 | Microwave crystal oscillator drying device for zero discharge of desulfurization wastewater |
| CN111701445A (en) * | 2020-06-08 | 2020-09-25 | 陈宏林 | High-salinity wastewater tail end curing process |
| CN112429901A (en) * | 2020-11-18 | 2021-03-02 | 成都市蜀科科技有限责任公司 | Desulfurization waste water zero discharge system of low temperature flue gas concentration decrement and evaporation of double fluid bypass flue |
| CN113415845A (en) * | 2021-06-29 | 2021-09-21 | 南方电网电力科技股份有限公司 | Spray drying tower for desulfurization waste water |
| CN113479960A (en) * | 2021-07-26 | 2021-10-08 | 南方电网电力科技股份有限公司 | Spray drying tower |
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2017
- 2017-11-14 CN CN201721514054.5U patent/CN207511866U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108793296A (en) * | 2018-07-19 | 2018-11-13 | 江苏京源环保股份有限公司 | A kind of high-temperature flue gas processing desulfurization wastewater drying tower and processing method |
| CN109133234A (en) * | 2018-10-10 | 2019-01-04 | 江苏海澜正和环境科技有限公司 | A kind of desulfurization wastewater Zero discharging system |
| CN109987772A (en) * | 2019-05-16 | 2019-07-09 | 江苏正士环保科技有限公司 | A kind of method of low-cost processes waste water |
| CN110627150A (en) * | 2019-09-23 | 2019-12-31 | 北京化工大学 | Continuous treatment method and device for zero discharge of high-concentration high-salinity wastewater |
| CN110803732A (en) * | 2019-11-29 | 2020-02-18 | 济南山源环保科技有限公司 | Drying and solidifying device for zero discharge of wastewater |
| CN110947349A (en) * | 2019-12-24 | 2020-04-03 | 上海天晓环保工程有限公司 | Microwave crystal oscillator drying device for zero discharge of desulfurization wastewater |
| CN110947349B (en) * | 2019-12-24 | 2024-03-15 | 上海天晓环保工程有限公司 | Microwave crystal oscillator drying device for zero emission of desulfurization wastewater |
| CN111701445A (en) * | 2020-06-08 | 2020-09-25 | 陈宏林 | High-salinity wastewater tail end curing process |
| CN112429901A (en) * | 2020-11-18 | 2021-03-02 | 成都市蜀科科技有限责任公司 | Desulfurization waste water zero discharge system of low temperature flue gas concentration decrement and evaporation of double fluid bypass flue |
| CN113415845A (en) * | 2021-06-29 | 2021-09-21 | 南方电网电力科技股份有限公司 | Spray drying tower for desulfurization waste water |
| CN113479960A (en) * | 2021-07-26 | 2021-10-08 | 南方电网电力科技股份有限公司 | Spray drying tower |
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Address after: 226200 No. 1085 West Nanyuan Road, Qidong Economic Development Zone, Jiangsu, Nantong Patentee after: Jiangsu Ruili environmental engineering Limited by Share Ltd Address before: 226200 No. 1085 West Nanyuan Road, Qidong Economic Development Zone, Jiangsu, Nantong Patentee before: Jiangsu Rui fan environmental protection project Limited by Share Ltd |