CN206215021U - A kind of wet type flue gas desulphurization system of waste incineration - Google Patents
A kind of wet type flue gas desulphurization system of waste incineration Download PDFInfo
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- CN206215021U CN206215021U CN201621172183.6U CN201621172183U CN206215021U CN 206215021 U CN206215021 U CN 206215021U CN 201621172183 U CN201621172183 U CN 201621172183U CN 206215021 U CN206215021 U CN 206215021U
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Abstract
The utility model discloses a kind of wet type flue gas desulphurization system of waste incineration, mainly it is formed by connecting by precooling tower, precooling liquid circulating pump, scrubbing tower, absorption parts, dehumidification parts, absorbing liquid circulating pump, dehumidification cooling subsystem, flue gas heater, main road flue, main road gas baffle, main exhaust flue, main smoke discharging baffle plate, sodium hydroxide solution supply pipe and water treatment system.Carrying out precooling tower from sack cleaner flue gas out carries out cooling depickling, subsequently enters scrubbing tower, and scrubbing tower is divided into absorption portion and dehumidification portion and further acid contaminant is removed；Flue gas after being finally fully cleaned up is heated to more than 150 degree by heater again, is discharged by air-introduced machine, and the flue gas acidic materials quality after purification fully meets newest fume emission Standard.The wet type flue gas desulphurization system solves the problems, such as to easily cause atomizing disk and nozzle wear because rotary atomizer rotating speed is high in current incineration flue gas of household garbage main flow semidry process.
Description
Technical field
The utility model is related to the filed of flue gas purification in terms of environmental protection, more particularly to a kind of wet flue gas of waste incineration
Cleaning system.
Background technology
Minimizing, resource, innoxious can be realized using burning disposal house refuse, but because rubbish is in burning process
HCL, HF, SO are included in the flue gas of middle generationXDeng acid contaminant, it is necessary to be controlled after purifying secondary with avoid causing environment
Pollution；The gas cleaning deacidifying process of country's main flow is semidry process, semidry method+dry process at present, and semidry method is mainly
Being distributed in flue gas and the surface of flue gas particles after atomization with lime white carries out depickling reaction, and dry process is then direct with water
The surface of flue gas and flue gas particles is distributed in after atomization, depickling reaction is carried out using pulverized limestone；And semidry process, semidry method
+ dry process faces the phenomenon that rotary atomizer cannot overcome border to escape, simultaneously because rotary atomizer rotating speed is high easily
Cause the problem of atomizing disk and nozzle wear, and it is increasingly strict with flue gas of refuse burning pollutant standard, and semidry method is anti-
Answer efficiency low and the problems such as equipment easy failure it is more prominent；Due to wet flue gas technique to the clearance of acid contaminant more
Height, but do not have a kind of system that can conveniently utilize the effective gas cleaning to waste incineration of wet method at present.
Utility model content
Based on the problems of above-mentioned prior art, the utility model provides a kind of wet type flue gas desulphurization of waste incineration
System, further can effectively remove the acid contaminant in flue gas, and reacted flue-gas temperature is more than 150 degree, will not produce
Raw white cigarette problem, so that due to rotary atomizer rotating speed Gao Rong in solving current incineration flue gas of household garbage main flow semidry process
Easily cause the problem of atomizing disk and nozzle wear.
In order to solve the above technical problems, the utility model provides a kind of wet type flue gas desulphurization system of waste incineration, including：
Precooling tower, precooling liquid circulating pump, scrubbing tower, absorb parts, dehumidification parts, absorbing liquid circulating pump, dehumidification cooling subsystem,
Flue gas heater, main road flue, main road gas baffle, main exhaust flue, main smoke discharging baffle plate, sodium hydroxide solution supply pipe and
Water treatment system；Wherein,
The precooling tower, its top is provided with main road flue, and the main road flue other end is smoke inlet, in the main road flue
It is provided with main road gas baffle；
Interval setting absorbs parts and dehumidification parts, the absorption parts successively from bottom to up in the scrubbing tower
It is connected with the treatment subsystem outside the scrubbing tower and dehumidification portion cooling treatment subsystem respectively, the dehumidification parts difference
It is connected with dehumidification portion cooling treatment subsystem and treatment subsystem outside the scrubbing tower；
The scrubbing tower top is provided with main exhaust flue, and flue gas heater and main smoke evacuation are sequentially provided with the main exhaust flue
Gas baffle plate, the main exhaust flue other end is exhanst gas outlet；
The precooling tower bottom connects through pipeline with the bottom of the scrubbing tower；
The scrubbing tower bottom is connected to the nozzle set in the precooling tower with precooling liquid circulating pump by the road；
The scrubbing tower bottom is connected with absorbing liquid circulating pump with the absorption parts in the scrubbing tower by the road；
The sodium hydroxide solution supply pipe is respectively connecting to connecting pipe and institute between the precooling tower and scrubbing tower
State the cooling treatment subsystem connection of dehumidification portion.
The beneficial effects of the utility model are：By set precooling tower and scrubbing tower and associated component can be to flue gas precooling at
Carrying out washing treatment is carried out after reason, the acid contaminant in flue gas further can be effectively removed, and reacted flue-gas temperature exceedes
150 degree, white cigarette problem will not be produced, so that due to rotation mist in solving current incineration flue gas of household garbage main flow semidry process
Change the device rotating speed problem for easily causing atomizing disk and nozzle wear high, the flue gas acidic materials quality after purification fully meets newest
Fume emission Standard.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the utility model embodiment, below will be to being wanted needed for embodiment description
The accompanying drawing for using is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present utility model
Example, for one of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Obtain other accompanying drawings.
The schematic diagram of the wet type flue gas desulphurization system that Fig. 1 is provided for the utility model embodiment；
The corresponding part of each label is in figure：1- main road flues；11- main road gas baffles；2- bypass flues；21- is bypassed
Gas baffle；3- precooling towers；4- nozzles；5- precooling liquid circulating pumps；6- scrubbing towers；7- absorptions portion body；8- dehumidifications portion body；9-
Absorbing liquid circulating pump；10- absorptions portion packing layer；11- absorptions portion spraying layer；12- absorptions portion mist eliminator flushing layer；13- absorptions portion
Demister；14- dehumidifications portion packing layer；15- dehumidifications portion spraying layer；16- dehumidifications portion mist eliminator flushing layer；17- dehumidifications portion demister；
18- dehumidification water tanks；19- dehumidification water pumps；20- dehumidification water coolers；21- flue gas heaters；22- main exhaust flues；23- water process
Subsystem；A- smoke inlets；B- sodium hydroxide solution supply pipes；C- process water filling pipes；D- exhanst gas outlets.
Specific embodiment
The technical scheme in the utility model embodiment is clearly and completely described below, it is clear that described reality
Example only a part of embodiment of the utility model is applied, rather than whole embodiments.Based on embodiment of the present utility model, this
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
New protection domain.
As shown in figure 1, the utility model embodiment provides a kind of wet type flue gas desulphurization system of waste incineration, the system energy
The acid contaminant in flue gas is further effectively removed, and reacted flue-gas temperature is more than 150 degree, and white cigarette will not be produced to ask
Topic, so as to easily cause mist because rotary atomizer rotating speed is high in solving current incineration flue gas of household garbage main flow semidry process
Change the problem of disk and nozzle wear, the flue gas acidic materials quality after purification fully meets newest fume emission Standard, should
System includes：Precooling tower, precooling liquid circulating pump, scrubbing tower, absorption parts, dehumidification parts, absorbing liquid circulating pump, dehumidification are cold
But subsystem, flue gas heater, main road flue, main road gas baffle, main exhaust flue, main smoke discharging baffle plate, NaOH are molten
Liquid supply pipe and water treatment system；Wherein,
Precooling tower, its top is provided with main road flue, and the main road flue other end is smoke inlet, is provided with the main road flue
Main road gas baffle；
Interval setting absorbs parts and dehumidification parts successively from bottom to up in scrubbing tower, absorb parts respectively with this
Treatment subsystem outside scrubbing tower and the cooling treatment subsystem connection of dehumidification portion, dehumidification parts respectively with the scrubbing tower outside
Dehumidification portion cooling treatment subsystem and the treatment subsystem connection in portion；
Scrubbing tower top is provided with main exhaust flue, and flue gas heater and main smoke discharging gear are sequentially provided with the main exhaust flue
Plate, the main exhaust flue other end is exhanst gas outlet；
Precooling tower bottom connects through pipeline with the bottom of scrubbing tower；
Scrubbing tower bottom is connected to the nozzle set in precooling tower with precooling liquid circulating pump by the road；
Scrubbing tower bottom is connected with absorbing liquid circulating pump with the absorption parts in scrubbing tower by the road；
The connecting pipe that sodium hydroxide solution supply pipe is respectively connecting between precooling tower and scrubbing tower is cooled down with dehumidification portion
Processing subsystem is connected.
In above-mentioned flue gas purification system, the absorption parts in scrubbing tower include：
Absorption portion body, is provided with absorption portion packing layer in it；
Absorption portion NaOH solution spraying layer, is located at absorption portion body top, and absorption portion NaOH solution spraying layer is by the road
It is connected with treatment subsystem and absorbing liquid circulating pump respectively；
Absorption portion demister, is located at absorption portion NaOH solution spraying layer top；
Absorption portion mist eliminator flushing layer, is located at absorption portion demister lower section, in absorption portion demister and absorption portion NaOH
Between solution spraying layer, the absorption portion mist eliminator flushing layer is connected with dehumidification portion cooling treatment subsystem.
In above-mentioned flue gas purification system, the dehumidification parts in scrubbing tower include：
Dehumidification portion body, is provided with dehumidification portion packing layer in it；
Dehumidification portion spraying layer, is located at dehumidification portion body top, dehumidification portion NaOH solution spraying layer by the road respectively with subtract
Wet end cooling treatment subsystem is connected；
Dehumidification portion demister, is located at dehumidification portion NaOH solution spraying layer top；
Dehumidification portion mist eliminator flushing layer, is located at dehumidification portion demister lower section, in dehumidification portion demister and dehumidification portion NaOH
Between solution spraying layer, the dehumidification portion mist eliminator flushing layer is connected with dehumidification portion cooling treatment subsystem.
In above-mentioned flue gas purification system, dehumidification portion cooling treatment subsystem includes：
Dehumidification water tank, dehumidification water pump and dehumidification water cooler；Wherein,
Dehumidification water tank, is connected with the dehumidification portion body and sodium hydroxide solution supply pipe of dehumidification parts respectively by the road；
Dehumidification water tank, by the road, the dehumidification portion NaOH respectively with dehumidification parts is molten for dehumidification water pump and dehumidification water cooler
Liquid spraying layer and treatment subsystem are connected；
The pipeline of water side two of dehumidification water pump be respectively connecting to the dehumidification portion mist eliminator flushing layer of dehumidification parts with
The absorption portion mist eliminator flushing layer of parts is absorbed, the water side is returned through an other pipeline and is connected to dehumidification water tank；
Dehumidification water tank is provided with process water supply pipe.
Above-mentioned each part effect of flue gas purification system and the course of work are as follows：
(1) gas bypass：
Bypass flue is set in precooling tower 3 and scrubbing tower 6, bypass can be opened when precooling tower 3 and scrubbing tower 6 need maintenance
Bypass flue is two gas baffles 21,22, flue gas is smoothly discharged；Flue gas is sequentially entered from main road flue 1 during normal operation
After precooling tower 3 and scrubbing tower 6 carry out depickling treatment, then discharged after the flue gas heater 21 on main exhaust flue 22 is heated,
The exhanst gas outlet connection air-introduced machine of main exhaust flue 22；
(2) flue gas is precooled：
The smoke inlet A connection sack cleaners of main road flue 1, main road flue is passed through from sack cleaner flue gas out
1 initially enters precooling tower 3, and cooling depickling is carried out to flue gas by one group of nozzle 4 on precooling tower 3, and NaOH solution is by precooling tower 3
Connecting pipe with the family of scrubbing tower 6 is supplied, while set precooling liquid circulating pump 5 being carried out to the solution of the bottom of scrubbing tower 6
Recycle；
(3) scrubbing tower：
Enter scrubbing tower 6 by the flue gas after precooling tower 3 tentatively cooling depickling, 6 points of scrubbing tower is for absorption parts and subtracts
Wet end component, the absorption portion body 7 for absorbing parts is located at bottom in scrubbing tower 6, and the dehumidification portion body 8 of dehumidification parts is located at
The internal upper part of scrubbing tower 6, the top of absorption portion body 7 is provided with absorption portion spraying layer 11 and enters absorption for spraying NaOH solution, flue gas
Portion's body 7 and NaOH solution counter current contacting so that flue gas is fully reacted with NaOH solution, while absorption portion body 7 is provided with
Absorption portion packing layer 10, absorption portion packing layer 10 predominantly extends absorption portion's spray liquid and smoke reaction time, improves reaction and inhales
Produce effects rate；The bottom of absorption portion body 7 is provided with absorbing liquid circulating pump 9, to ensure recycling for NaOH solution, in course of reaction
In, NaOH solution carries out reaction generation salt with sour gas, and the solution of the bottom of scrubbing tower 6 once reaches high salt concentration, just arranges
Go out a part of absorbing liquid into treatment subsystem 23, while the new NaOH solution of supplement.
The upper end of absorption portion body 7 is provided with absorption portion demister 13, and dehumidification portion group is entered after the drop carried in removal flue gas
The dehumidification portion body 8 of part；The top of dehumidification portion body 8 is again provided with dehumidification portion spraying layer 15 for spraying NaOH solution, flue gas with
NaOH solution counter current contacting is reacted, while dehumidification portion body 8 is provided with dehumidification portion packing layer 14；Through the liquid that dehumidification portion body 8 is collected
Body enters the dehumidification water tank 18 of dehumidification portion cooling treatment subsystem, and dehumidification water tank 18 is provided with NaOH solution and process water supplement pipe
To control suitable pH value, dehumidification water pump 19 is by dehumidification water through dehumidification water cooler 20 into being circulated after dehumidification portion spraying layer 15
Utilize；In dehumidification portion, the top of body 8 is provided with dehumidification portion demister 17, and further the drop in removal flue gas, reduces downstream flue
Dewing corrosion, while preventing the generation of white cigarette；Absorption portion body 7 is equipped with suction with the demister lower end of dehumidification portion demister 8
Receipts portion mist eliminator flushing rinses layer 12 and dehumidification portion mist eliminator flushing rinses layer 16, prevents the blocking of demister；
(4) flue gas is reheated：Flue gas after purification is heated by flue gas heater 21 again when being discharged through main exhaust flue 22
Temperature (150 degree) to acid dew piont corrosion is discharged above by the air-introduced machine that exhanst gas outlet is connected.
The above, only the utility model preferably specific embodiment, but protection domain of the present utility model is not
This is confined to, any one skilled in the art can readily occur in the technical scope that the utility model is disclosed
Change or replacement, should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should
It is defined by the protection domain of claims.
Claims (4)
1. the wet type flue gas desulphurization system of a kind of waste incineration, it is characterised in that including：Precooling tower, precooling liquid circulating pump, washing
Tower, absorption parts, dehumidification parts, absorbing liquid circulating pump, dehumidification cooling subsystem, flue gas heater, main road flue, main road
Gas baffle, main exhaust flue, main smoke discharging baffle plate, sodium hydroxide solution supply pipe and water treatment system；Wherein,
The precooling tower, its top is provided with main road flue, and the main road flue other end is smoke inlet, is provided with the main road flue
Main road gas baffle；
Interval setting absorbs parts and dehumidification parts, the absorption parts difference successively from bottom to up in the scrubbing tower
Be connected with the treatment subsystem outside the scrubbing tower and dehumidification portion cooling treatment subsystem, the dehumidification parts respectively with this
Dehumidification portion cooling treatment subsystem and treatment subsystem connection outside scrubbing tower；
The scrubbing tower top is provided with main exhaust flue, and flue gas heater and main smoke discharging gear are sequentially provided with the main exhaust flue
Plate, the main exhaust flue other end is exhanst gas outlet；
The precooling tower bottom connects through pipeline with the bottom of the scrubbing tower；
The scrubbing tower bottom is connected to the nozzle set in the precooling tower with precooling liquid circulating pump by the road；
The scrubbing tower bottom is connected with absorbing liquid circulating pump with the absorption parts in the scrubbing tower by the road；
The connecting pipe that the sodium hydroxide solution supply pipe is respectively connecting between the precooling tower and scrubbing tower subtracts with described
Wet end cooling treatment subsystem is connected.
2. a kind of wet type flue gas desulphurization system of waste incineration as claimed in claim 1, it is characterised in that absorption portion group
Part includes：
Absorption portion body, is provided with absorption portion packing layer in it；
Absorption portion NaOH solution spraying layer, is located at absorption portion body top, and absorption portion NaOH solution spraying layer is by the road
It is connected with the treatment subsystem and absorbing liquid circulating pump respectively；
Absorption portion demister, is located at the absorption portion NaOH solution spraying layer top；
Absorption portion mist eliminator flushing layer, is located at absorption portion demister lower section, in absorption portion demister and the suction
Between receipts portion NaOH solution spraying layer, the absorption portion mist eliminator flushing layer is connected with the dehumidification portion cooling treatment subsystem.
3. a kind of wet type flue gas desulphurization system of waste incineration as claimed in claim 1, it is characterised in that dehumidification portion group
Part includes：
Dehumidification portion body, is provided with dehumidification portion packing layer in it；
Dehumidification portion NaOH solution spraying layer, is located at dehumidification portion body top, and dehumidification portion NaOH solution spraying layer is by the road
It is connected with the dehumidification portion cooling treatment subsystem respectively；
Dehumidification portion demister, is located at the dehumidification portion NaOH solution spraying layer top；
Dehumidification portion mist eliminator flushing layer, is located at dehumidification portion demister lower section, subtracts with described in dehumidification portion demister
Between wet end NaOH solution spraying layer, the dehumidification portion mist eliminator flushing layer is connected with the dehumidification portion cooling treatment subsystem.
4. a kind of wet type flue gas desulphurization system of the waste incineration as described in any one of claims 1 to 3, it is characterised in that institute
Stating dehumidification portion cooling treatment subsystem includes：
Dehumidification water tank, dehumidification water pump and dehumidification water cooler；Wherein,
The dehumidification water tank, supplies with the dehumidification portion body of the dehumidification parts and the sodium hydroxide solution respectively by the road
Pipe is connected；
The dehumidification water tank, by the road, dehumidification water pump and dehumidification water cooler respectively with the dehumidification portion of the dehumidification parts
NaOH solution spraying layer and the treatment subsystem are connected；
The pipeline of water side two of the dehumidification water pump is respectively connecting to the dehumidification portion mist eliminator flushing of the dehumidification parts
Layer and the absorption portion mist eliminator flushing layer for absorbing parts, the water side is returned through an other pipeline and is connected to the dehumidification water
Case；
The dehumidification water tank is provided with process water supply pipe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621172183.6U CN206215021U (en) | 2016-10-26 | 2016-10-26 | A kind of wet type flue gas desulphurization system of waste incineration |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621172183.6U CN206215021U (en) | 2016-10-26 | 2016-10-26 | A kind of wet type flue gas desulphurization system of waste incineration |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107648978A (en) * | 2017-10-27 | 2018-02-02 | 中冶华天工程技术有限公司 | Wet desulfurization flue gas eliminates plume system and method |
| CN108310794A (en) * | 2018-03-14 | 2018-07-24 | 红河绿地环保科技发展有限公司 | A method of remove smoke floss hole white haze steam |
| CN109745850A (en) * | 2019-03-07 | 2019-05-14 | 广东南方碳捕集与封存产业中心 | A kind of circulation pretreatment system for coal-burning power plant's collecting carbonic anhydride |
| CN109794157A (en) * | 2018-12-28 | 2019-05-24 | 苏州艾特斯环保设备有限公司 | A kind of incineration flue gas wet process deacidifying device and deacidifying flue gas technique |
| CN110215813A (en) * | 2019-06-19 | 2019-09-10 | 许翠英 | A kind of hot industry flue gas desulfurization and denitrification processing method |
| CN111135673A (en) * | 2020-02-18 | 2020-05-12 | 北京英泰科环境工程技术有限公司 | Two-stage wet flue gas deacidification system and method |
-
2016
- 2016-10-26 CN CN201621172183.6U patent/CN206215021U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107648978A (en) * | 2017-10-27 | 2018-02-02 | 中冶华天工程技术有限公司 | Wet desulfurization flue gas eliminates plume system and method |
| CN107648978B (en) * | 2017-10-27 | 2024-03-22 | 中冶华天工程技术有限公司 | Wet desulfurization flue gas smoke plume eliminating system and method |
| CN108310794A (en) * | 2018-03-14 | 2018-07-24 | 红河绿地环保科技发展有限公司 | A method of remove smoke floss hole white haze steam |
| CN109794157A (en) * | 2018-12-28 | 2019-05-24 | 苏州艾特斯环保设备有限公司 | A kind of incineration flue gas wet process deacidifying device and deacidifying flue gas technique |
| CN109745850A (en) * | 2019-03-07 | 2019-05-14 | 广东南方碳捕集与封存产业中心 | A kind of circulation pretreatment system for coal-burning power plant's collecting carbonic anhydride |
| CN110215813A (en) * | 2019-06-19 | 2019-09-10 | 许翠英 | A kind of hot industry flue gas desulfurization and denitrification processing method |
| CN111135673A (en) * | 2020-02-18 | 2020-05-12 | 北京英泰科环境工程技术有限公司 | Two-stage wet flue gas deacidification system and method |
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