CN104740993B - Three-stage zoned collaborative dust removal and desulfurization system - Google Patents
Three-stage zoned collaborative dust removal and desulfurization system Download PDFInfo
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- CN104740993B CN104740993B CN201510176807.5A CN201510176807A CN104740993B CN 104740993 B CN104740993 B CN 104740993B CN 201510176807 A CN201510176807 A CN 201510176807A CN 104740993 B CN104740993 B CN 104740993B
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- tower
- flue
- fairing
- demister
- outlet
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- 238000006477 desulfuration reaction Methods 0.000 title abstract description 18
- 230000023556 desulfurization Effects 0.000 title abstract description 17
- 239000000428 dust Substances 0.000 title abstract description 15
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000003546 flue gas Substances 0.000 claims abstract description 28
- 239000007789 gas Substances 0.000 claims abstract description 20
- 239000002245 particle Substances 0.000 claims abstract description 13
- 239000007921 spray Substances 0.000 claims description 21
- 230000003009 desulfurizing effect Effects 0.000 claims description 20
- 238000010410 dusting Methods 0.000 claims description 13
- 239000000779 smoke Substances 0.000 claims description 13
- 238000004140 cleaning Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 8
- 238000005452 bending Methods 0.000 claims description 3
- 235000019504 cigarettes Nutrition 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 239000006260 foam Substances 0.000 abstract description 3
- 238000005507 spraying Methods 0.000 abstract 5
- 239000010419 fine particle Substances 0.000 abstract 1
- 230000001131 transforming effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012716 precipitator Substances 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The invention discloses a three-stage zoned collaborative dust removal and desulfurization system. The three-stage zoned collaborative dust removal and gas desulfurization system comprises a desulfurization tower which is provided with a flue gas inlet and a flue gas outlet, wherein a spraying device is arranged in the desulfurization tower; an in-tower rectifying device for removing dust and an in-tower demisting device for removing atomized particles are further arranged in the desulfurization tower; the in-tower rectifying device is located between the flue gas inlet and the spraying device, and the in-tower demisting device is located between the spraying device and the flue gas outlet. According to the three-stage zoned collaborative dust removal and desulfurization system, the spraying device, the in-tower rectifying device and the in-tower demisting device are reasonably distributed in the desulfurization tower, fine particles are crashed in a foam layer and are captured by virtue of vortexes when dusty gas flows through the in-tower rectifying device and are further captured when dusty gas flows through the spraying device, and the atomized particles carried in flue gas are further removed when the flue gas flows through the in-tower demisting device, so that the dust content in the flue gas is collaboratively and deeply removed during the desulfurization, and the low-energy-consumption emission is realized; the three-stage zoned collaborative dust removal and desulfurization system can be realized by properly transforming an existing desulfurization device, and the investment and the operation cost can be effectively lowered.
Description
Technical field
The present invention relates to a kind of dusting and desulfuring system, more particularly to a kind of three-level formula subregion collaboration dusting and desulfuring system.
Background technology
At present, the environmental protecting devices such as desulphurization and denitration, dedusting, coal-fired plant flue gas have been installed substantially by Chinese large-sized coal-burning power plant
Air is polluted to control to a certain extent, but as economic development, living standards of the people are improved, to atmosphere quality
Demand is also increasingly improved, and correspondingly promotes more high-environmental standard to put into effect and the newly implementation of environmental law so that coal-fired under the new situation
Power-plant flue gas pollutant emission faces requirement higher；Additionally, the fume environment protection facility and technology of fired power generating unit configuration at this stage
" extensive style " overall controls for biasing toward qualified discharge, it is difficult to which the pollutant for meeting existing atmosphere quality becomes more meticulous depth more
Demand for control；Especially in different economic levels, the area of environmental condition, even more need to adapt to the green technology of local characteristic,
With smaller cost, pointedly solve regional atmosphere polluting problem.
The Wet type electric dust-removing device (number of patent application 201320817795) of efficient removal trace contaminant, flue gas are de- at a high speed
Sulphur wet-esp deentrainment tower (number of patent application 201320443909), wet electrical dust precipitator (number of patent application
201320825823), removing disclosed in the patent such as wet method sulphur removing and dust removing integrated apparatus (number of patent application 201320635139)
Dirt desulphurization system is all the rear increase Wet type electric dust-removing device in existing desulfuration absorbing tower, and it need to newly increase reaction respiratory system,
The operation of the device simultaneously need to increase power consumption and energy consumption, build and operating cost is sufficiently expensive.Desulphurizing and dust-removing integral flue gas
Processor (number of patent application 201210425383) improves desulfurization and dedusting effect by setting up Venturi tube devulcanizer, runs energy
Consumption is very huge, and should not be used in the operation of large-sized unit.Spiral-flow tower board desulfurized dust remover (number of patent application 201320521091),
Gas-liquid turbulence type desulfurization dust remover (number of patent application 201320728067) is conventional equipment, and should not be used in large-sized unit, no
The requirement of minimum discharge can be reached.
It is therefore desirable to be improved to existing dusting and desulfuring system, efficient removal SO can be realized2, while collaboration
Depth ground removing dust, improves the efficiency of desulphurization system, and can be effectively reduced investment and operating cost.
The content of the invention
In view of this, it is an object of the invention to provide a kind of three-level formula subregion collaboration dusting and desulfuring system, can realize
Efficient removal SO2, while cooperateing with depth ground removing dust, the efficiency of desulphurization system is improved, and investment can be effectively reduced
And operating cost.
Three-level formula subregion of the invention cooperates with dusting and desulfuring system, including the desulfurization for being provided with smoke inlet and exhanst gas outlet
Tower, is provided with spray equipment in the desulfurizing tower, fairing is additionally provided with the tower for dedusting in the desulfurizing tower and for taking off
Except demister in the tower of atomizing particle, fairing is located between smoke inlet and spray equipment in the tower, in the tower
Demister is located between spray equipment and exhanst gas outlet.
Further, the exhanst gas outlet is connected with outlet flue, the outlet flue and is set successively along gas flow direction
There are the flue fairing for being homogenized flue gas flow field and the flue demister for removing atomizing particle.
Further, the outlet for stablizing flue gas flow field is additionally provided with before being located at flue fairing in the outlet flue
Guiding device；The outlet flue includes flat segments and expansion segment, and the flue fairing and flue demister are located at
Expansion segment；The outlet guiding device includes arc and straight panel, and the arc is located in flat segments, and the straight panel is from straight
Section extends to expansion segment and is adapted with the expansion ratio of expansion segment.
Further, the smoke inlet is connected with inlet air stack, is provided with for stablizing flue gas flow field in the inlet air stack
Inlet guide, the inlet guide includes being arranged in arc plate in inlet air stack turning, the arc plate
Position is corresponding with inlet air stack turning.
Further, the spray equipment includes the cleaning solution shower being horizontally installed in desulfurizing tower, the cleaning solution spray
Spray head is evenly equipped with shower pipe.
Further, the distance between demister and smoke inlet are 0.5-2.5m in the tower, demisting dress in the tower
It is 1.0-2.0m to put with the distance between undermost cleaning solution shower.
Further, fairing and flue fairing are screen hole type structure or grille-type structure in the tower.
Further, fairing and/or flue fairing include cowling panel in the tower, are offered on the cowling panel
Through the rectification hole of plate body, the rectification hole is circular, bar shaped or fusiformis.
Further, demister and/or flue demister include the ripple of framework and the bending located at framework in the tower
Shape plate, is provided with airflow clearance between the adjacent corrugated sheet, atomizing particle from airflow clearance by when collision shape on corrugated sheet
Into liquid film.
Beneficial effects of the present invention：Three-level formula subregion of the invention cooperates with dusting and desulfuring system, the interior reasonably cloth of desulfurizing tower
Demister in fairing and tower is put in spray equipment, tower, molecule is in bubble when dusty gas flows through fairing in tower
It is captured by collision and eddy current effect in foam layer, is further caught when then flowing through spray equipment, flows through demisting dress in tower
The atomizing particle carried in flue gas is further removed when putting, realizes that desulfurization cooperates with the dust content in deep removal flue gas simultaneously,
Realize the disposal of pollutants of low energy consumption；Simple structure of the present invention, can be real by appropriate reconstruction on the basis of existing desulfurizer
It is existing, investment and operating cost can be effectively reduced.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples：
Fig. 1 is structural representation of the invention；
Fig. 2 is the structural representation of fairing (or flue fairing) in tower of the invention；
Fig. 3 is the structural representation of demister (or flue demister) in tower of the invention.
Specific embodiment
As shown in Figures 1 to 3：The present embodiment three-level formula subregion collaboration dusting and desulfuring system, including be provided with smoke inlet and
It is provided with the desulfurizing tower 1 of exhanst gas outlet, the desulfurizing tower 1 in spray equipment, the desulfurizing tower 1 and is additionally provided with the tower for dedusting
Fairing 3 and for demister 4 in the tower for removing atomizing particle, fairing 3 is located at smoke inlet with spray in the tower
Between shower device, demister 4 is located between spray equipment and exhanst gas outlet in the tower；Fairing 3 can be formed in tower
Froth bed, steel foams are carried out with to dusty gas；Fairing 3 and tower in spray equipment, tower are reasonably arranged in desulfurizing tower 1
Interior demister 4, molecule is caught in froth bed by collision and eddy current effect when dusty gas flows through fairing 3 in tower
Catch, further caught when then flowing through spray equipment, further remove what is carried in flue gas when flowing through demister 4 in tower
Atomizing particle, realizes that desulfurization cooperates with the dust content in deep removal flue gas simultaneously, realizes the disposal of pollutants of low energy consumption；The system
Simple structure, by appropriate reconstruction is to be capable of achieving on the basis of existing desulfurizer, can be effectively reduced investment and run
Cost.
In the present embodiment, the exhanst gas outlet is connected with outlet flue, in the outlet flue along gas flow direction according to
The secondary flue fairing 6 being provided with for being homogenized flue gas flow field and the flue demister 7 for removing atomizing particle；Flue is whole
The structure for flowing device 6 can be identical with fairing in tower 3, only because desulfurizing tower 1 is arranged vertically, outlet air flue horizontal arrangement,
Two fairings need change arranged direction to realize rectification to be contacted with gas；Similarly, the structure of flue demister 7 also can be with
The structure of demister 4 is consistent in tower；In the present embodiment, it is additionally provided with before being located at flue fairing 6 in the outlet flue
Outlet guiding device for stablizing flue gas flow field；The outlet flue includes flat segments 51 and expansion segment 52, and the flue is whole
Stream device 6 and flue demister 7 are located at expansion segment 52；The outlet guiding device includes arc 81 and straight panel 82, institute
Arc 81 is stated to be located in flat segments 51, the straight panel 82 from flat segments 51 extend to expansion segment 52 and with the expansion of expansion segment 52
Degree is adapted；Flat segments 51 partly can be connected positioned at the top of desulfurizing tower 1 with gas outlet, or even can be a part for desulfurizing tower 1；Expand
The longitudinal section for opening section 52 is more than flat segments 51 to adapt to the installation requirements of flue fairing 6 and flue demister 7, flat segments
51 can in a tubular form, and expansion segment 52 can be in tower-like；Outlet guiding device carries out water conservancy diversion distribution to flue gas, is distributed flue gas flow field equal
It is even；Flat segments 51 are expansion ratio with the angle of inclination of the junction of expansion segment 52.
In the present embodiment, the smoke inlet is connected with inlet air stack 11, the inlet air stack 11 and is provided with for stabilization
The inlet guide of flue gas flow field, the inlet guide includes the arc plate 91 being arranged in the turning of inlet air stack 11,
The position of the arc plate 91 is corresponding with the turning of inlet air stack 11；Inlet guide can use water conservancy diversion with outlet guiding device
Hardened structure；Arc plate 91 adapts to corner structure, by flue gas even into desulfurizing tower 1.
In the present embodiment, the spray equipment includes the cleaning solution shower 21 being horizontally installed in desulfurizing tower 1, described to wash
Wash and spray head 22 is evenly equipped with liquid shower 21；The intracavity bottom of desulfurizing tower 1 can be set the slurry pool for depositing cleaning solution, washing
Liquid shower 21 is connected by washing pump and associated conduit with slurry pool, realizes circulated sprinkling；Additionally, be can be set in desulfurizing tower 1
The cleaning solution shower 21 of multilayer (more than two-layer) so that spray desulfurization is highly efficient；In the present embodiment, demisting dress in the tower
It is 0.5-2.5m that 4 are put with the distance between smoke inlet, in the tower demister 4 and undermost cleaning solution shower 21 it
Between distance be 1.0-2.0m；Certainly, depending on specific distance can be according to actual conditions.
In the present embodiment, fairing 3 and flue fairing 6 are screen hole type structure or grid type knot in the tower
Structure；Preferably, fairing 3 and flue fairing 6 include cowling panel 31 in the tower, are offered on the cowling panel 31
Through the rectification hole 32 of plate body, the rectification hole 32 is circle；In the shape of cowling panel 31 and the inner chamber of desulfurizing tower 1 and outlet flue
Portion's shape is adapted；Rectification hole 32 is formed to flue gas and constrained, and makes smoke distribution uniform, and liquid mass transfer effect is preferable；Certainly, rectification hole
32 shape can also be bar shaped or fusiformis.
In the present embodiment, demister 4 and flue demister 7 include framework 41 and located at framework 41 in the tower
The corrugated sheet 42 of bending, is provided with airflow clearance 43 between the adjacent corrugated sheet 42, atomizing particle from airflow clearance 43 by when
Collision forms liquid film on corrugated sheet 42；Liquid film is separated with air motion to turning, the drop droplet not being removed
Continue to separate at next (or under several) turning；Additionally, can be set towards airflow clearance in the topmost of corrugated sheet 42
The 43 baffle plate (not shown)s for extending, to the droplet of airflow clearance 43 will be passed through to intercept, increased droplet and are captured
Probability, improve remove fog effect.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
Good embodiment has been described in detail to the present invention, it will be understood by those within the art that, can be to skill of the invention
Art scheme is modified or equivalent, and without deviating from the objective and scope of technical solution of the present invention, it all should cover at this
In the middle of the right of invention.
Claims (5)
1. a kind of three-level formula subregion collaboration dusting and desulfuring system, including the desulfurizing tower of smoke inlet and exhanst gas outlet is provided with, it is described
Spray equipment is provided with desulfurizing tower, it is characterised in that：Fairing and use in the tower for dedusting are additionally provided with the desulfurizing tower
In demister in the tower of removing atomizing particle, fairing is located between smoke inlet and spray equipment in the tower, described
Demister is located between spray equipment and exhanst gas outlet in tower；The exhanst gas outlet is connected with outlet flue, the outlet cigarette
In road flue fairing for being homogenized flue gas flow field is sequentially provided with along gas flow direction and for removing atomizing particle
Flue demister；The smoke inlet is connected with inlet air stack, is provided with for stablizing flue gas flow field in the inlet air stack
Inlet guide, the inlet guide includes the arc plate being arranged in inlet air stack turning, the position of the arc plate
Put corresponding with inlet air stack turning；Demister and flue demister include framework and the bending located at framework in the tower
Corrugated sheet, is provided with airflow clearance between the adjacent corrugated sheet, atomizing particle from airflow clearance by when collision on corrugated sheet
Form liquid film；The topmost of corrugated sheet sets the baffle plate extended towards airflow clearance；
The outlet guiding device for stablizing flue gas flow field is additionally provided with before being located at flue fairing in the outlet flue；Institute
Stating outlet flue includes flat segments and expansion segment, and the flue fairing and flue demister are located at expansion segment；It is described
Outlet guiding device includes arc and straight panel, and the arc is located in flat segments, and the straight panel extends to expansion from flat segments
The expansion ratio for opening Duan Bingyu expansion segments is adapted.
2. three-level formula subregion according to claim 1 cooperates with dusting and desulfuring system, it is characterised in that：The spray equipment bag
The cleaning solution shower being horizontally installed in desulfurizing tower is included, spray head is evenly equipped with the cleaning solution shower.
3. three-level formula subregion according to claim 2 cooperates with dusting and desulfuring system, it is characterised in that：Demisting dress in the tower
It is 0.5-2.5m to put with the distance between smoke inlet, in the tower between demister and undermost cleaning solution shower
Distance is 1.0-2.0m.
4. the three-level formula subregion according to any one of claims 1 to 3 cooperates with dusting and desulfuring system, it is characterised in that：It is described
Fairing and flue fairing are screen hole type structure or grille-type structure in tower.
5. the three-level formula subregion according to any one of claims 1 to 3 cooperates with dusting and desulfuring system, it is characterised in that：It is described
Fairing and/or flue fairing include cowling panel in tower, and the rectification hole through plate body, institute are offered on the cowling panel
It is circular, bar shaped or fusiformis to state rectification hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510176807.5A CN104740993B (en) | 2015-04-13 | 2015-04-13 | Three-stage zoned collaborative dust removal and desulfurization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510176807.5A CN104740993B (en) | 2015-04-13 | 2015-04-13 | Three-stage zoned collaborative dust removal and desulfurization system |
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| Publication Number | Publication Date |
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| CN104740993A CN104740993A (en) | 2015-07-01 |
| CN104740993B true CN104740993B (en) | 2017-05-24 |
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| CN201510176807.5A Active CN104740993B (en) | 2015-04-13 | 2015-04-13 | Three-stage zoned collaborative dust removal and desulfurization system |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107569979A (en) * | 2017-09-22 | 2018-01-12 | 中国华能集团公司 | A kind of structures and methods for eliminating absorption tower exit sharp pounding |
| CN108014620A (en) * | 2017-12-04 | 2018-05-11 | 重庆精创联合环保工程有限公司 | The integrated processing technique of flue gas minimum discharge |
| CN110368799B (en) * | 2019-07-30 | 2022-05-27 | 福建龙净脱硫脱硝工程有限公司 | Semi-dry desulfurization device and method |
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| CN103908888A (en) * | 2014-04-10 | 2014-07-09 | 江苏揽山环境科技有限公司 | Atomizing and spraying desulfurization tower |
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| CN204522654U (en) * | 2015-04-13 | 2015-08-05 | 中电投远达环保工程有限公司 | Three grades of formula subregions work in coordination with dusting and desulfuring system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08309230A (en) * | 1995-05-19 | 1996-11-26 | Mitsubishi Heavy Ind Ltd | Fast flow wet type electric dust collector |
| PL2420309T3 (en) * | 2010-08-19 | 2014-09-30 | General Electric Technology Gmbh | A gas cleaning system having a gas flow rectifier |
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Patent Citations (6)
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|---|---|---|---|---|
| CN2671688Y (en) * | 2003-09-16 | 2005-01-19 | 陈国榘 | Front combined electrid dust removing and air flow even distribution smoke box |
| CN103908888A (en) * | 2014-04-10 | 2014-07-09 | 江苏揽山环境科技有限公司 | Atomizing and spraying desulfurization tower |
| CN203899446U (en) * | 2014-06-24 | 2014-10-29 | 中电投远达环保工程有限公司 | Flue gas desulfurization device with coarse desulfurization function |
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| CN104740993A (en) | 2015-07-01 |
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Address after: 401122, 96 Jin Yu Road, new North District, Chongqing, Yubei District Patentee after: National electric investment group Yuanda Environmental Protection Engineering Co.,Ltd. Address before: 401122 96 Jin Yu Road, North New District, Chongqing Patentee before: CPI YUANDA ENVIRONMENTAL-PROTECTION ENGINEERING Co.,Ltd. |
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Effective date of registration: 20200515 Address after: 401122, 96 Jin Yu Road, new North District, Chongqing, Yubei District Co-patentee after: INNER MONGOLIA HMHJ ALUMINUM ELECTRICITY Co.,Ltd. Patentee after: National electric investment group Yuanda Environmental Protection Engineering Co.,Ltd. Address before: 401122, 96 Jin Yu Road, new North District, Chongqing, Yubei District Patentee before: National electric investment group Yuanda Environmental Protection Engineering Co.,Ltd. |