CN205886580U - DC combination tower electrostatic precipitator integration flue gas processing system - Google Patents
DC combination tower electrostatic precipitator integration flue gas processing system Download PDFInfo
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- CN205886580U CN205886580U CN201620891815.8U CN201620891815U CN205886580U CN 205886580 U CN205886580 U CN 205886580U CN 201620891815 U CN201620891815 U CN 201620891815U CN 205886580 U CN205886580 U CN 205886580U
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- tower
- flue gas
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- desulfurizing tower
- pipeline
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Abstract
The utility model discloses a DC combination tower electrostatic precipitator integration flue gas processing system, including heterogeneous desulfurizing tower of DS and CST turbogrid tray tower, DS passes through pipeline and boiler connected in heterogeneous desulfurizing tower top, the heterogeneous desulfurizing tower lower extreme of DS is established on the sedimentation tank, and rather than the intercommunication, CST turbogrid tray tower lower extreme is established on the sedimentation tank, and rather than the intercommunication, CST turbogrid tray top of the tower end passes through pipeline intercommunication chimney through pipe connection wet -type electrostatic precipitator, wet -type electrostatic precipitator rethread pipe connection draught fan, draught fan, the sedimentation tank lower part is equipped with sewage port, the heterogeneous desulfurizing tower upper portion of DS is inserted through the circulating pump in the sedimentation tank middle part, through the circulating wind pipe intercommunication on the pipeline between the heterogeneous desulfurizing tower of draught fan and chimney and boiler and DS. The utility model provides a wet flue gas desulfurization flue gas carry the aerosol particles thing and discharge " secondary pollution " problem of leading to, the system has reduced the area when each single tower series uses, saving investment expense, the reinforcing operational reliability of system.
Description
Technical field
The utility model belongs to technical field of environment protection equipment, is related to a kind of dc combination tower electrostatic precipitation integrated fume and processes
System, specifically a kind of ds multiphase desulfurizing tower and cts dual-flow tray integrated desulfurization technology.
Background technology
The flue gas pollutant main component of industry exclusion is so2And dust, atmospheric environment and the mankind are caused serious
Harm.Desulfurization and two operating units of dedusting can be combined again in integral process engineering by flue gas desulfurization and dust removal integrated technology
Get up, efficiency high, small investment, promote dedusting and desulphurization integrated technology and sign living environment, increase economic efficiency and area to improving
The air quality in domain has great significance.Desulphurization system is located at the end of flue, after deduster, the reaction temperature of sweetening process
Degree is less than dew point, so the flue gas after desulfurization needs to heat again could discharge.With the raising of discharging standards, desulphurization system
Efficiency of dust collection also improving constantly, especially wet desulphurization effect is much better compared with dry desulfurization effect, so wet desulphurization becomes
First-selection for enterprise.
Lime stone-gypsum method flue gas desulfurization technology using lime stone slurry as desulfurizing agent, in absorption tower to flue gas at
Reason absorbs, and so that the sulfur dioxide in flue gas is reacted and generates calcium sulfite, blasts air simultaneously, force to make in the slurries on absorption tower
Calcium sulfite is converted into calcium sulfate, and the byproduct of desulfurizing agent is gypsum.This system includes smoke heat exchanging system, absorption tower desulfurization system
System, desulfurizer slurry preparation system, gypsum dehydration and Waste Water Treatment.Due to lime stone low price it is easy to transporting and protecting
Deposit, thus become the main desulfurizing agent in wet fuel gas desulfurizing technology, limestone-gypsum method flue gas desulfurization technology becomes preferential
The wet fuel gas desulfurizing technology selecting, this method desulfuration efficiency height (more than 95%), functional reliability is high.
In prior art, ds multiphase desulfurizing tower and cst turbogrid tower belong to wet desulphurization although each having higher
Desulfuration efficiency, its weak point is as follows: ds multiphase desulfurizing tower, though as shown in figure 1, this desulfurizing tower has higher desulfurization effect
Rate, it is single that reactant liquor is not to close with flue gas during contacting as seen from the figure, have small portion of gas not with reactant liquor
Reaction tower, the desulfuration efficiency of impact desulfurizing tower are discharged in contact after demister support mist；Cst turbogrid tower, as shown in Fig. 2 due to
On hole relatively small, all reactant liquor species are restricted, with so2The reactant liquor that reaction produces precipitation is not used in this reaction
In tower, easily block sieve aperture, so that reaction tower cannot be run.
Utility model content
The purpose of this utility model is to provide a kind of dc combination tower electrostatic precipitation integrated fume processing system.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of dc combination tower electrostatic precipitation integrated fume processing system, including ds multiphase desulfurizing tower and cst turbogrid tower,
Described ds multiphase desulfurizing tower top is connected with boiler by pipeline, and described ds multiphase desulfurizing tower lower end is located on sedimentation basin, and with
Its connection；
Described cst turbogrid tower lower end is located on sedimentation basin, and communicates therewith；Pipe is passed through on described cst turbogrid tower top
Road connects wet electrical dust precipitator, and wet electrical dust precipitator connects air-introduced machine by pipeline again, and air-introduced machine passes through pipeline communication chimney；
Described sedimentation basin bottom is provided with sewage mouth；Accessed on ds multiphase desulfurizing tower by circulating pump in the middle part of described sedimentation basin
Portion；
Connected by circulating airduct on pipeline between described air-introduced machine and chimney and boiler and ds multiphase desulfurizing tower.
The beneficial effects of the utility model: it is molten that the dc combination tower solution wet desulfurization flue gas that the utility model provides carry gas
Granular material discharged " secondary pollution " problem leading to of glue；System decreases floor space when each single column is used in series, and saves and throws
Rate are used, and strengthening system operational reliability creates bigger economic benefit, had both ds tower and the advantage of cst tower simultaneously,
Overcome shortcoming when two towers are used alone；
Meanwhile, wet electrical dust precipitator utilizes electrostatic precipitation principle, and strengthening superfine particulate matter is efficiently collected and thorough deashing, goes out
Existing coal desulfurization flue gas cleaning qualified discharge；so3Acid mist, nh3The heavy metal removing rates such as aerosol, pm2.5, drop, mercury reach 90%
More than；Substantially reduce the opacity (turbidity) of flue gas；
The utility model solves wet desulfurization flue gas and carries " secondary pollution " problem that the discharge of aerosol particle thing leads to；System
System cancels ggh, reduces investment outlay, reduces station service power consumption rate, strengthening system operational reliability；Realize so3Acid mist, slurry drops aerosol etc.
Efficient removal, chimney anticorrosion grade reduces, and can meet higher environmental requirement, will obtain wide in the desulphurization system in future
General application.
Brief description
For the ease of it will be appreciated by those skilled in the art that being further described to the utility model below in conjunction with the accompanying drawings.
Fig. 1 is ds multiphase Structure of Flue Gas Desulfuration Absorbing schematic diagram in prior art；
Fig. 2 is cst turbogrid tower structural representation in prior art；
Fig. 3 is a kind of the utility model dc combination tower electrostatic precipitation integrated fume processing system structural representation.
Specific embodiment
A kind of dc combination tower electrostatic precipitation integrated fume processing system, as shown in figure 3, include ds multiphase desulfurizing tower 2 with
Cst turbogrid tower 3；Ds multiphase desulfurizing tower 2 top is connected with boiler 1 by pipeline, and ds multiphase desulfurizing tower 2 lower end is located at sedimentation basin
On 7, and communicate therewith；
Cst turbogrid tower 3 lower end is located on sedimentation basin 7, and communicates therewith；Cst turbogrid tower 3 top is connected by pipeline
Wet electrical dust precipitator 10, wet electrical dust precipitator 10 connects air-introduced machine 5 by pipeline again, and air-introduced machine 5 passes through pipeline communication chimney 4；
Sedimentation basin 7 bottom is provided with sewage mouth 8；Ds multiphase desulfurizing tower 2 top is accessed by circulating pump 9 in sedimentation basin 7 middle part；
Pass through on pipeline between air-introduced machine 5 and chimney 4 and boiler 1 and ds multiphase desulfurizing tower 2 to circulate airduct 6 even
Logical；
Ds multiphase desulfurizing tower operation principle: this tower is divided into three parts: top is gas approach, is furnished with cyclic absorption slurries
Inlet tube, middle part is reaction member, and here is substantially carried out gas-liquid reaction.Flue gas is fully contacted with slurries by reaction member, takes off
Except so2；Bottom is oxidation slurry tank.Gas carries out slurries with liquid here and separates, and absorbs slurries and carries out in oxidation trough fully
Oxidation, generates gypsum.Absorb slurries and tower top grout distribution device is pumped into by circulation, form one water curtain, air-liquid two-phase exists
Form high turbulence area in tower, air-flow is fully contacted, and desulfuration efficiency is high, and each absorption tower is by many under tower inner member guide functions
Individual absorptive unit composition.
Cst turbogrid tower operation principle: this tower dust-laden exhaust gas favorable current in the presence of air-introduced machine enters cst turbogrid tray
Tower-wet type bubble dust collector, gas pressure drop △ p, liquid pressure drop △ l；As gas pressure drop △ p=liquid pressure drop △ l, in sieve plate
On leave water membrane, with air-introduced machine effect as gas pressure drop △ p ＞ liquid pressure drop △ l, gas breaks through under moisture film enters
One layer of sieve plate；As liquid pressure drop △ l ＞ gas pressure drop △ p in the presence of water pump, liquid flows to next layer of sieve plate by sieve aperture
On, gas constantly replaces change with liquid on sieve plate.Liquid film and gas interact and are changed into numerous little foam, ash-laden gas
Dust in body is just received by this countless foam and is caught, and stays in a liquid, every tower has 2-3 block sieve plate, the froth bed on every piece of sieve plate
Thickness has 150mm, dust-laden exhaust gas in tower froth bed through 400-600mm path, flue dust is left behind flowing out outside tower downstream, quilt
The gas purifying is entering air with air-introduced machine in tower after solid-liquor separation demisting.
The dc recombination reaction tower that the utility model provides is to be combined ds multiphase desulfurizing tower 2 with cst turbogrid tower 3 to be used for one
The desulphurization system of set, operation principle is as follows:
Boiler 1 flue gas enters ds multiphase desulfurizing tower 2 after drawing and carries out desulfurization, after ds multiphase desulfurizing tower 2, so in flue gas2
Major part is by ca (oh)2Solution absorb, in sedimentation basin 7 precipitation discharge, after treatment containing a small amount of so2Flue gas enter
Enter cst turbogrid tower 3 to be reprocessed, one layer of sieve plate of setting and one layer of demister, cst turbogrid tower 3 in cst turbogrid tower 3
Top introduce clear water as reactant liquor, flue gas in the sieve plate in cst turbogrid tower 3, a small amount of so in flue gas2And flue dust
Intercepted by the aqueous solution to flow into and react again in sedimentation basin 7 outside generation precipitation exclusion tower；Flue gas after sieve plate contains on a small quantity
Drop, is removed after demister, and clean flue gas is discharged by chimney through flue；
A small amount of so that cannot remove in flue gas after effectively ds multiphase desulfurizing tower 2 being processed using dc combination tower2Gas goes
Remove, largely improve so less2Desulfuration efficiency, reduce environmental pollution, decrease the harm giving people that class health is brought, with
When overcome the present situation that is restricted of reactant liquor selection, the reaction in cst turbogrid tower 3 tower when cst turbogrid tower 3 single column uses
Liquid is directly entered sedimentation basin 7 and the ca (oh) of ds multiphase desulfurizing tower 22Solution reaction, need not separately build system by sulphur from the aqueous solution
Crystallization exclusion, saves the floor space of system, reduces economic cost.
Increase wet method electrostatic collector technology (wesp) in dc combination tower desulphurization system, integrated design, in combination tower
Cst turbogrid tower 3 on increase wet electrical dust precipitator, through combination tower process after flue gas enter wet electrical dust precipitator (wet method
Electrostatic precipitator), apply tens thousand of volt DC high-voltages between the positive plate of deduster and cathode line, in the effect of highfield
Under, the gas of negative and positive two interpolar is adequately ionized so that demister space is full of the ion with positive and negative electric charge；With process gas
Grit that stream enters in demister is collided with these positive and negative ion and charged, and the particle of powered dirt is due to quiet by high pressure
The effect of electric field Coulomb force, respectively to yin, yang two polar motion；After reaching the two poles of the earth, the electric charge each being carried is discharged, grit
Itself then it is attached on positive plate and cathode line due to its intrinsic stickiness, then removed by the method for fluid flushing.Should
Method is especially effective for removal fine dust and sulfuric acid mist.Wesp typically works under saturation wet flue gas condition, can adopt
Higher design flue gas flow rate, can be less using horizontal gas flow, rising and several design form of down current, therefore volume, borrows
Help waterpower deashing, secondary fly-up will not be produced.
Above content is only to the utility model structure example and explanation, the technology people of affiliated the art
Member is made various modifications or supplements or substituted using similar mode, without departing from reality to described specific embodiment
With new structure or surmount scope defined in the claims, protection domain of the present utility model all should be belonged to.
Claims (1)
1. a kind of dc combination tower electrostatic precipitation integrated fume processing system, including ds multiphase desulfurizing tower (2) and cst turbogrid tower
(3) it is characterised in that described ds multiphase desulfurizing tower (2) top is connected with boiler (1) by pipeline, described ds multiphase desulfurizing tower
(2) lower end is located on sedimentation basin (7), and communicates therewith；
Described cst turbogrid tower (3) lower end is located on sedimentation basin (7), and communicates therewith；Described cst turbogrid tower (3) top leads to
Piping connects wet electrical dust precipitator (10), and wet electrical dust precipitator (10) connects air-introduced machine (5), air-introduced machine (5) by pipeline again
By pipeline communication chimney (4)；
Described sedimentation basin (7) bottom is provided with sewage mouth (8)；Access ds multiphase by circulating pump (9) in the middle part of described sedimentation basin (7) to take off
Sulphur tower (2) top；
Circulated air is passed through on the pipeline between described air-introduced machine (5) and chimney (4) and boiler (1) and ds multiphase desulfurizing tower (2)
Pipe (6) connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620891815.8U CN205886580U (en) | 2016-08-16 | 2016-08-16 | DC combination tower electrostatic precipitator integration flue gas processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620891815.8U CN205886580U (en) | 2016-08-16 | 2016-08-16 | DC combination tower electrostatic precipitator integration flue gas processing system |
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| CN205886580U true CN205886580U (en) | 2017-01-18 |
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|---|---|---|---|
| CN201620891815.8U Expired - Fee Related CN205886580U (en) | 2016-08-16 | 2016-08-16 | DC combination tower electrostatic precipitator integration flue gas processing system |
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| CN (1) | CN205886580U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106039971A (en) * | 2016-08-16 | 2016-10-26 | 安徽盛运重工机械有限责任公司 | DC composite tower electrostatic dust collection integrated flue gas treatment system |
| CN106861387A (en) * | 2017-02-21 | 2017-06-20 | 安徽海纳森环境科技有限公司 | A kind of photodissociation exhaust gas integration processing system |
-
2016
- 2016-08-16 CN CN201620891815.8U patent/CN205886580U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106039971A (en) * | 2016-08-16 | 2016-10-26 | 安徽盛运重工机械有限责任公司 | DC composite tower electrostatic dust collection integrated flue gas treatment system |
| CN106861387A (en) * | 2017-02-21 | 2017-06-20 | 安徽海纳森环境科技有限公司 | A kind of photodissociation exhaust gas integration processing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170118 Termination date: 20200816 |