CN106334416A - Integrated flue gas desulfurization and dust removal device used in coal-fired power plant - Google Patents
Integrated flue gas desulfurization and dust removal device used in coal-fired power plant Download PDFInfo
- Publication number
- CN106334416A CN106334416A CN201610954214.1A CN201610954214A CN106334416A CN 106334416 A CN106334416 A CN 106334416A CN 201610954214 A CN201610954214 A CN 201610954214A CN 106334416 A CN106334416 A CN 106334416A
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- CN
- China
- Prior art keywords
- dust removal
- flue gas
- gas desulfurization
- power plant
- fired power
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/40—Combinations of devices covered by groups B01D45/00 and B01D47/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1456—Removing acid components
- B01D53/1481—Removing sulfur dioxide or sulfur trioxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
- B01D53/185—Liquid distributors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention relates to an integrated flue gas desulfurization and dust removal device used in a coal-fired power plant. A flow equalizing and effect improving plate is arranged above the inlet of an absorption tower, 2-5 spraying layers are arranged in the range of 1.5-3 m above the flow equalizing and effect improving plate, the separation distances of the spraying layers are 1.8-2.5 m, 1-2 layers of effect improving rings are arranged in the middles of the spraying layers, and a pipe precipitator is arranged above the upmost spraying layer. The integrated flue gas desulfurization and dust removal device has the advantages that the air-liquid contact time is increased by the flow equalizing and effect improving plate, more dissolution choices are provided in an absorption region, and accordingly the sulfur removal efficiency is improved; air-liquid distribution can be evener, the phenomenon that regions different in liquid-air ratio are different in desulfurization and dust removal efficiency is avoided, and accordingly the integrated flue gas desulfurization and dust removal efficiency of the device is improved. The liquid-air ratio of the desulfurization device is reduced, the spraying slurry amount is saved, the number of the spraying layer is decreased, wet-type electric precipitators and other large dust removal devices are not additionally added, the transformation work amount and operation costs are greatly reduced, and a transformation work period is shortened.
Description
Technical field
Patent of the present invention is related to removing means, the dust removal integrated removing dress of more particularly, to a kind of coal fired power plant flue gas desulfurization
Put.
Background technology
What the minimum discharge of national coal-burning power plant was transformed at present just carries out on a large scale in order, and it is existing that improvement project is faced with unit
Condition difference is big, the problems such as arrangement condition is complicated, for various Coal ranks, boiler type, existing environmental protection facility and place
The conditions such as arrangement, under the premise of the safety and stability ensureing minimum discharge unit, should reduce the investment of minimum discharge transformation
And operating cost.
Content of the invention
For the deficiencies in the prior art, the present invention provides a kind of rational in infrastructure, reduces the cost of investment of improvement project and full
The dust removal integrated removing means of the coal fired power plant flue gas desulfurization of compact place arrangement requirement enough.
For achieving the above object, present invention employs technical scheme below:
The dust removal integrated removing means of coal fired power plant flue gas desulfurization, is provided with all stream synergic boards in absorption tower entrance top,
All above stream synergic board, between 1.5m～3m, 2～5 layers of spraying layer are set, the spacing of every layer of spraying layer, between 1.8～2.5m, is sprayed
Drench 1～2 layer of CPR dust of layer middle setting, pipe precipitator is set above the superiors' spraying layer.
As preferred: at described pipe precipitator 2m above the superiors' spraying layer.
As preferred: described all stream synergic board be the perforated plate construction being provided with rinforcement bar, percent opening be 28%～35% it
Between.
As preferred: the parallel absorption tower that is stratified and set on of described spraying layer is originally internal, and every layer includes many showers and spray
Mouth；Successively to parallel arrangement, diameter dimension is reduced section by section to far-end stairstepping spray piping by near-end, flow velocity in spray piping
Uniformly it is ensured that each nozzle flow is identical；Spray coverage rate is between 200%～400%.
As preferred: described CPR dust passes through rubber blanket and contacts with absorbing tower wall.
As preferred: described pipe precipitator is by restraining cylinder and multi-stage acceleration device, separator, collector ring and water conservancy diversion ring group
Become.
The invention has the beneficial effects as follows:
1st, all stream synergic board increases the time of contact of gas-liquid, can more effectively contact serosity than the simple liquid-gas ratio that increases,
There is provided more dissolving machine meetings in uptake zone, thus increasing desulfuration efficiency；
2nd, pass through all to be flowed the parameters such as spacing, percent opening and the perforate density of synergic board, the module cloth with pipe precipitator
Put and mated with specification etc. and adjust, the effect of CPR dust in addition, gas-liquid distribution can be made more uniform, it is to avoid different liquid gas
The ratio difference of region desulfurization and efficiency of dust collection, thus improve the integral desulfurization, dust removal efficiency of this device.
3rd, all flow the combination of synergic board and pipe precipitator, reduce the liquid-gas ratio of desulfurizer, saved sprayed slurry
Amount, decreases spray layer number, need not additionally increase the large-scale dust arrester such as wet electrical dust precipitator, greatly reduce improvement project
Amount and operating cost, shorten the transformation duration.
Brief description
Fig. 1 is overall structure diagram of the present invention；
Fig. 2 is all to flow potentiation plate structure schematic diagram；
Fig. 3 is spraying layer plane graph；
Fig. 4 is CPR dust detail drawing；
Description of reference numerals: absorption tower entrance 1, all stream synergic board 2, spraying layer 3, CPR dust 4, pipe precipitator 5, all flow
Synergic board body 6, rinforcement bar 7, spray piping 8, nozzle 9, rubber blanket 10, absorption tower wall 11.
Specific embodiment
With reference to embodiment, the present invention is described further.The explanation of following embodiments is only intended to help understand this
Invention.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, also
The present invention can be carried out with some improvement and modify, these improve and modify the protection domain also falling into the claims in the present invention
Interior.
As shown in Figures 1 to 4, the dust removal integrated removing means of coal fired power plant flue gas desulfurization, above absorption tower entrance 1
It is provided with all stream synergic boards 2, between all stream synergic board 2 top 1.5m～3m, 3 layers of spraying layer 3 are set, the spacing of every layer of spraying layer 3 exists
Between 1.8～2.5m, spraying layer 1 layer of CPR dust 4 of 3 middle setting, pipe precipitator is set at 2m above the superiors' spraying layer 3
5, substitute ridge type demister+wet electrical dust precipitator, the integration removing in tower by sulfur and dirt, reach minimum discharge requirement.Cigarette
Gas, after the entrance of absorption tower, first passes through all stream synergic board in tower, and the homogenizing carrying out gas, liquid with liquid film thereon is adjusted
Whole, whole in absorption region highly goes up the effective contact that can realize flue gas and serosity.Permissible in the CPR dust of tower wall periphery
Effectively flue gas is converged toward tower centre, and also can be conducive to carrying with flue gas effective contact along the serosity that tower wall flows down
High desulfurization efficiency.By experimental study, can all be flowed the percent opening of synergic board and the module of opening area and pipe precipitator
Arrangement is adjusted and mates so that gas phase is uniformly more preferable, and desulfurization and dedusting potentiation becomes apparent from.
Described all stream synergic board 2 is the perforated plate construction being provided with rinforcement bar 7, and percent opening is between 28%～35%, runs
When on the liquid film that can keep certain height, increased time of contact with serosity in absorption tower for the flue gas.When gas passes through,
Gas-to-liquid contact, can play and fully absorb so in gas2With the effect of dust, thus effectively reducing liquid-gas ratio, improve absorption
The utilization rate of agent.
The parallel absorption tower that is stratified and set on of described spraying layer 3 is originally internal, and every layer includes many showers and nozzle；Shower
Successively to parallel arrangement, diameter dimension is reduced to far-end stairstepping section by section by near-end in road 8, and in spray piping 8, flow velocity is uniform,
Guarantee that each nozzle flow is identical；Spray coverage rate between 200%～400%, the polymerization of CPR dust 4 in addition, can
To greatest extent washing absorption is carried out to flue gas, effectively so in removing flue gas2And dust.By the atomized drop of drive nozzle
Mean diameter be about 1500～2200 microns, be conducive to top bundled tube cleaner unit capture, work in coordination with improve dust removing effects.Institute
State CPR dust 4 to contact with absorbing tower wall 11 by rubber blanket 10.
Bundled tube cleaner unit 5 is to be collided at high speeds by fine drop and granule, condense and become bulky grain, by inertia
The separation from gas phase for the granule is realized in effect.Described pipe precipitator 5 is by tube bank cylinder and multi-stage acceleration device, separator, collector ring
And guide ring composition.Being arranged in absorption tower can be it is not necessary to other place, the strong adaptability to improvement project, initial cost and
Operation energy consumption is all relatively low.
All stream synergic board 2 of this programme and pipe precipitator 5 can adopt unlike material material, alloy or nonmetallic all
Can, stiffened panel can suitably be increased according to intensity requirement, be arranged on support steel beam by measures such as bolt, clips.
The present invention demonstrates in Zhejiang Zhe Neng Wenzhou Power factory 2 × 300mw coal unit flue gas minimum discharge, after transformation
One layer of setting all stream synergic board, one layer of CPR dust, three layers of spraying layer and one layer of pipe precipitator, the cigarette of final unit in absorption tower
Gas pollutant emission meets minimum discharge standard and requires.
Claims (6)
1. a kind of dust removal integrated removing means of coal fired power plant flue gas desulfurization it is characterised in that: above absorption tower entrance (1)
It is provided with all stream synergic board (2), all above stream synergic board (2), between 1.5m～3m, 2～5 layers of spraying layer (3), spraying layer (3) are set
, between 1.8～2.5m, 1～2 layer of CPR dust (4) of spraying layer (3) middle setting, in the superiors' spraying layer (3) for every layer of spacing
Top setting pipe precipitator (5).
2. the dust removal integrated removing means of coal fired power plant flue gas desulfurization according to claim 1 it is characterised in that: described
At pipe precipitator (5) 2m above the superiors' spraying layer (3).
3. the dust removal integrated removing means of coal fired power plant flue gas desulfurization according to claim 1 it is characterised in that: described
All stream synergic board (2) is the perforated plate construction being provided with rinforcement bar (7), and percent opening is between 28%～35%.
4. the dust removal integrated removing means of coal fired power plant flue gas desulfurization according to claim 1 it is characterised in that: described
The parallel absorption tower that is stratified and set on of spraying layer (3) is originally internal, and every layer includes many showers and nozzle；Spray piping (8) is successively
To parallel arrangement, diameter dimension is reduced to far-end stairstepping section by section by near-end, and the interior flow velocity of spray piping (8) is uniformly it is ensured that every
Individual nozzle flow is identical；Spray coverage rate is between 200%～400%.
5. the dust removal integrated removing means of coal fired power plant flue gas desulfurization according to claim 1 it is characterised in that: described
CPR dust (4) passes through rubber blanket (10) and contacts with absorbing tower wall (11).
6. the dust removal integrated removing means of coal fired power plant flue gas desulfurization according to claim 1 it is characterised in that: described
Pipe precipitator (5) is made up of tube bank cylinder and multi-stage acceleration device, separator, collector ring and guide ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610954214.1A CN106334416A (en) | 2016-10-27 | 2016-10-27 | Integrated flue gas desulfurization and dust removal device used in coal-fired power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610954214.1A CN106334416A (en) | 2016-10-27 | 2016-10-27 | Integrated flue gas desulfurization and dust removal device used in coal-fired power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106334416A true CN106334416A (en) | 2017-01-18 |
Family
ID=57841547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610954214.1A Pending CN106334416A (en) | 2016-10-27 | 2016-10-27 | Integrated flue gas desulfurization and dust removal device used in coal-fired power plant |
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| Country | Link |
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| CN (1) | CN106334416A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110694406A (en) * | 2019-10-16 | 2020-01-17 | 上海时申工贸有限公司 | Waste gas treatment tower and treatment process thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000015050A (en) * | 1998-07-01 | 2000-01-18 | Kawasaki Heavy Ind Ltd | Spray absorption tower in flue gas desulfurization apparatus |
| CN101298020A (en) * | 2008-05-29 | 2008-11-05 | 武汉凯迪电力环保有限公司 | Desulfuration spray tower with load regulation and flue gas flow equalizing function |
| CN104857836A (en) * | 2015-05-12 | 2015-08-26 | 浙江天地环保工程有限公司 | Flue gas desulfurization absorber interactive spray system |
| CN204656163U (en) * | 2015-03-17 | 2015-09-23 | 天津博瑞环保设备有限公司 | Bundled tube deduster |
| CN104941432A (en) * | 2015-06-10 | 2015-09-30 | 浙江菲达环保科技股份有限公司 | Synergistic treatment device for dust removing and desulphurization |
| CN204768272U (en) * | 2015-06-18 | 2015-11-18 | 田鹏程 | A device for wet flue gas desulfurization absorption tower flue gas deep purification |
| CN206152585U (en) * | 2016-10-27 | 2017-05-10 | 浙江天地环保科技有限公司 | Removing device of coal fired power plant flue gas desulfurization and dust removal integration |
-
2016
- 2016-10-27 CN CN201610954214.1A patent/CN106334416A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000015050A (en) * | 1998-07-01 | 2000-01-18 | Kawasaki Heavy Ind Ltd | Spray absorption tower in flue gas desulfurization apparatus |
| CN101298020A (en) * | 2008-05-29 | 2008-11-05 | 武汉凯迪电力环保有限公司 | Desulfuration spray tower with load regulation and flue gas flow equalizing function |
| CN204656163U (en) * | 2015-03-17 | 2015-09-23 | 天津博瑞环保设备有限公司 | Bundled tube deduster |
| CN104857836A (en) * | 2015-05-12 | 2015-08-26 | 浙江天地环保工程有限公司 | Flue gas desulfurization absorber interactive spray system |
| CN104941432A (en) * | 2015-06-10 | 2015-09-30 | 浙江菲达环保科技股份有限公司 | Synergistic treatment device for dust removing and desulphurization |
| CN204768272U (en) * | 2015-06-18 | 2015-11-18 | 田鹏程 | A device for wet flue gas desulfurization absorption tower flue gas deep purification |
| CN206152585U (en) * | 2016-10-27 | 2017-05-10 | 浙江天地环保科技有限公司 | Removing device of coal fired power plant flue gas desulfurization and dust removal integration |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110694406A (en) * | 2019-10-16 | 2020-01-17 | 上海时申工贸有限公司 | Waste gas treatment tower and treatment process thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Hangzhou City, Zhejiang province 310012 Huaxing Road No. 99 (Hangzhou Neusoft business building) Applicant after: Zhejiang Tiandi Environmental Protection Technology Co.,Ltd. Applicant after: BEIJING SPC ENVIRONMENT PROTECTION TECH Co.,Ltd. Address before: Hangzhou City, Zhejiang province 310012 Huaxing Road No. 99 (Hangzhou Neusoft business building) Applicant before: ZHEJIANG TIANDI ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Applicant before: BEIJING SPC ENVIRONMENT PROTECTION TECH Co.,Ltd. |
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| CB02 | Change of applicant information | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170118 |
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| WD01 | Invention patent application deemed withdrawn after publication |