CN209333504U - A kind of device of condensation method cooperation-removal fine particle and sulfur trioxide acid mist - Google Patents
A kind of device of condensation method cooperation-removal fine particle and sulfur trioxide acid mist Download PDFInfo
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- CN209333504U CN209333504U CN201821596470.9U CN201821596470U CN209333504U CN 209333504 U CN209333504 U CN 209333504U CN 201821596470 U CN201821596470 U CN 201821596470U CN 209333504 U CN209333504 U CN 209333504U
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- laminate
- fine particle
- sulfur trioxide
- acid mist
- honeycomb
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- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 title claims abstract description 83
- 239000010419 fine particle Substances 0.000 title claims abstract description 36
- 239000003595 mist Substances 0.000 title claims abstract description 30
- 239000002253 acid Substances 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000005494 condensation Effects 0.000 title claims abstract description 20
- 238000009833 condensation Methods 0.000 title claims abstract description 20
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 17
- 239000003517 fume Substances 0.000 claims abstract description 11
- 238000005507 spraying Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- 235000019504 cigarettes Nutrition 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 16
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 239000000779 smoke Substances 0.000 abstract description 3
- 239000003546 flue gas Substances 0.000 description 15
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 14
- 230000008569 process Effects 0.000 description 10
- 238000006477 desulfuration reaction Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 230000023556 desulfurization Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 239000000443 aerosol Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000001925 catabolic effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The utility model relates to environment protection fields, more particularly to the environmental protection of traditional power plants, more particularly relate to a kind of condensation method cooperation-removal fine particle and the device of sulfur trioxide acid mist, including desulfurizing tower, the desulfurizing tower includes fume inlet passage, doctor solution spraying layer, demister and blowdown stack, the fume inlet passage inlet is provided with cold air generating device, multi-layer honeycomb shape laminate is provided in the smoke-intake pipe road, and two neighboring honeycomb laminate is not overlapped, the air outlet of the cold air generating device is perpendicular to multi-layer honeycomb shape laminate.Due to the structure of honeycomb laminate, so that doctor solution is more abundant with smoke contacts, time of contact is longer, cooperates cold air generating device, big fine particle and sulfur trioxide acid mist partial size, improves fine particle and sulfur trioxide acid mist condensation effect.
Description
Technical field
The present invention relates to environment protection fields, more particularly to the environmental protection of traditional power plants, more particularly relate to one kind
The device of condensation method cooperation-removal fine particle and sulfur trioxide acid mist.
Background technique
Fine particle and sulfur trioxide acid mist pollution are current Environmental Protection in China field emphasis atmospheric issues urgently to be resolved.Carefully
Particulate matter and sulfur trioxide acid mist are to lead to the great rings such as atmospheric visibility reduction, acid rain, haze weather and Global climate change
Border the very corn of a subject problem.Currently, the most large and medium-sized coal fired power plant in China is all using wet desulfurizing process, due to wet process
There are the processes such as solution-air, gas-liquid-solid desulphurization reaction in sweetening process, itself easily forms fine particle in this process,
So that wet method fume desulfurizing system is only 10-20% to the removal efficiency of fine particle, and this efficiency subtracting with grain diameter
It is small more serious.The partial size of most of sulfur trioxide acid mist is submicron order, therefore the cleaning function of sweetening process traps it
Efficiency only reaches 30-40%.
It has been investigated that if in process of wet desulphurization fine particle and sulfur trioxide acid mist molecule handle,
Increase its partial size, then can enhance the effect of the pollutant catabolic genes facility such as wet desulphurization removing fine particle and sulfur trioxide acid mist
Fruit.
In order to realize the purpose, in currently available technology frequently with technical solution be by washed in wet desulphurization
Journey high temperature flue gas contacts with each other with low-temp desulfurization cleaning solution, vaporizes partial desulfurization cleaning solution, and smoke temperature reduces, and Gas phase Smoke is to wet
Degree increases, and reaches saturation state, supersaturated vapor environment needed for realizing fine particle and sulfur trioxide acid mist condensation growth.
Summary of the invention
The technical problem to be solved by the invention is to provide a kind of condensation method cooperation-removal fine particle and sulfur trioxide acid
The device of mist increases fine particle and sulfur trioxide acid mist partial size so as to further effective, improves fine particle and three
Aoxidize sulfuric acid mist condensation effect.
In order to solve the above-mentioned technical problem, the invention discloses a kind of condensation method cooperation-removal fine particle and sulfur trioxides
The device of acid mist, including desulfurizing tower, the desulfurizing tower include fume inlet passage, doctor solution spraying layer, demister and discharge cigarette
Chimney, the fume inlet passage inlet are provided with cold air generating device, and multi-layer honeycomb shape laminate is provided in the smoke-intake pipe road, and
Two neighboring honeycomb laminate is not overlapped, the air outlet of the cold air generating device perpendicular to multi-layer honeycomb shape laminate, it is described into
Water spray tower is additionally provided at cigarette channel, the blowdown stack front end is additionally provided with cold air generating device.
Wet desulfuration tower front end is provided with water spray tower, the atomized water of lower temperature is sprayed into using the water spray tower, on the one hand
Temperature can be reduced while humidity can be increased so that part sulfur trioxide gas be made to be condensed into sulfur trioxide droplet or direct
It depends on fine particle, the flue gas and sulfur trioxide droplet after the damping that cools down further reach saturation in the process.
Flue gas enters wet desulphurization tower apparatus simultaneously, in the process but also the partial size of sulfur trioxide droplets particles and fine particle
It further increases.
Desulfurizing tower outlet channel is provided with cold air generating device.It is condensed so that flue gas cool-down is to making to be dehydrated, and
Remove the fine particle and SO in flue gas3。
It should be noted that honeycomb laminate mentioned here refer to combined by multiple hexagons made of plate structure,
Each hexagon is hollow structure, to form the layer structure with multiple hexagonal holes.
As further preferred technical solution, the inscribed circle radius of hexagon component units is in the honeycomb laminate
2-10mm。
It is further preferred that the inscribed circle radius of hexagon component units is 3-5mm in the honeycomb laminate.
More preferably technical solution is that the inscribed circle radius of hexagon component units is 4mm in the honeycomb laminate.
Preferably, the spacing of two neighboring honeycomb laminate is not more than 10cm in the multi-layer honeycomb shape laminate.
Further preferred technical solution is that the spacing of two neighboring honeycomb laminate is not more than in multi-layer honeycomb shape laminate
5cm。
As optimal technical solution, the spacing of two neighboring honeycomb laminate is equal to 3.5cm in multi-layer honeycomb shape laminate.
Air blower is additionally provided at the smoke-intake pipe road as a preferred technical solution, the air blower is arranged in cold air
The exit of generating device.
It is had the advantages that using technical solution disclosed by the invention
The liquid that doctor solution spraying layer sprays receives the influence of honeycomb structure at honeycomb laminate, forms water
Film, and since honeycomb laminate is nonoverlapping between each other, that is to say, that doctor solution can be led between multilayered structure
Stream effect, slowly flows down, at this point, the flue gas entered by fume inlet passage bottom, adverse current is connect at honeycomb laminate with doctor solution
Touching, and due to the structure of honeycomb laminate, so that this contact is more abundant, time of contact is longer, and cooperation cold air fills
It sets, big fine particle and sulfur trioxide acid mist partial size, improves fine particle and sulfur trioxide acid mist condensation effect.
Detailed description of the invention
Fig. 1 is the schematic device of condensation method cooperation-removal fine particle and sulfur trioxide acid mist.
Fig. 2 is honeycomb laminate schematic diagram.
Specific embodiment
In order to better understand the present invention, we in conjunction with specific embodiments further explain the present invention below
It states.
Embodiment 1
As shown in Figure 1, the device of condensation method cooperation-removal fine particle and sulfur trioxide acid mist, including desulfurizing tower 1, it is described
Desulfurizing tower includes fume inlet passage 2, doctor solution spraying layer 3, demister 4 and blowdown stack 5, and the fume inlet passage inlet is set
It is equipped with cold air generating device 6, multi-layer honeycomb shape laminate 7 is provided in the smoke-intake pipe road, and two neighboring honeycomb laminate is not
Overlapping, the air outlet of the cold air generating device are additionally provided with water spray at the fume inlet passage 2 perpendicular to multi-layer honeycomb shape laminate
Tower 9, the blowdown stack front end are additionally provided with cold air generating device 10.
As shown in Figure 2, honeycomb laminate refers to combined by multiple hexagons made of plate structure, each hexagon is equal
For hollow structure, to form the layer structure with multiple hexagonal holes.
Preferably, air blower 8 is additionally provided at the smoke-intake pipe road in the present embodiment, the air blower 8 is arranged cold
The exit of gas generating device.
Flue gas is entered in desulfurizing tower by smoke-intake pipe road 2, and at multi-layer honeycomb shape laminate 7 with doctor solution spraying layer 3
The doctor solution sprayed carries out counter current contacting, since multiple hexagonal holes are distributed on honeycomb laminate 7, doctor solution
Moisture film is formed in hexagonal hole, is come into full contact with when flue gas passes through with moisture film, and sulfur trioxide further liquefies, and is wrapped in fine grained
Beyond the region of objective existence side, so that fine particle partial size increases, while sulfur trioxide and doctor solution time of contact extend, and contact area increases, and takes off
Sulphur effect is more preferable.
Embodiment 2
Effect comparison is carried out with regard to different size of honeycomb laminate below.
Flue gas is generated by fully-automatic coal-fired boiler, exhaust gas volumn 400Nm3/h, is aided with aerosol generator, sulfur trioxide hair
Raw device adds appropriate burned-coal fly ash and sulfur trioxide in flue gas, makes dust content 44mg/m3 in coal-fired flue-gas, wherein thin
Grain object concentration is 18mg/m3, and sulfur trioxide concentration is 42mg/m3.
According to device disclosed in embodiment 1, desulfurization process is carried out to it, difference is, in different experiments respectively
Using the different honeycomb laminate of inscribed circle radius, in order to consider influence of the cell size to processing result, in the embodiment
10 layers of honeycomb laminate are respectively provided in each experiment, and the spacing between each layer is 3.5cm.
34 DEG C of doctor solution temperature, 18 DEG C of water temperature of cold water spraying layer of desulfurizing tower top.
The results are shown in Table 1.
Table 1:
| Honeycomb inscribed circle radius (mm) | Desulfurizing tower exports fine particle quality concentration (mg/m3) | Desulfurizing tower exports sulfur trioxide acid mist concentration (mg/m3) |
| 1 | - | - |
| 2 | 7.0 | 17.0 |
| 3 | 3.7 | 9.0 |
| 4 | 3.5 | 8.0 |
| 5 | 3.8 | 8.5 |
| 6 | 4.5 | 9.5 |
| 7 | 5.2 | 10.9 |
| 8 | 6.0 | 11.2 |
| 9 | 6.9 | 12.5 |
| 10 | 7.0 | 13.5 |
| 11 | 7.5 | 15 |
| 12 | 8.0 | 18.0 |
By table 1, it will be seen that can effectively remove fine particle and three oxygen using technical solution disclosed by the invention
Change sulphur, and it is of note that the effect when the inscribed circle radius of hexagon component units in honeycomb laminate is 2-10mm
Preferably, especially when the inscribed circle radius of hexagon component units in honeycomb laminate is 3-5mm better effect, optimal selection
The inscribed circle radius for being hexagon component units in honeycomb laminate is 4mm.
Embodiment 3
Flue gas is generated by fully-automatic coal-fired boiler, exhaust gas volumn 400Nm3/h, is aided with aerosol generator, sulfur trioxide hair
Raw device adds appropriate burned-coal fly ash and sulfur trioxide in flue gas, makes dust content 44mg/m3 in coal-fired flue-gas, wherein thin
Grain object concentration is 18mg/m3, and sulfur trioxide concentration is 42mg/m3.
Selecting inscribed circle radius below is the honeycomb laminate of 4mm, considers influence of the different spacing to removal effect respectively.
10 layers of honeycomb laminate are respectively provided in each experiment of the embodiment.
| The spacing (cm) of two neighboring honeycomb laminate | Desulfurizing tower exports fine particle quality concentration (mg/m3) | Desulfurizing tower exports sulfur trioxide acid mist concentration (mg/m3) |
| 10 | 8.5 | 19.0 |
| 8 | 8.0 | 18.5 |
| 5 | 7.0 | 15.8 |
| 4.5 | 6.5 | 14.2 |
| 4 | 4.0 | 10.5 |
| 3.5 | 3.5 | 8.0 |
| 3 | 3.5 | 8.1 |
| 2.5 | 3.6 | 8.5 |
| 1 | 5.2 | 11.0 |
As can be seen from Table 2, fine particle and sulfur trioxide can effectively be removed using technical solution disclosed by the invention,
And it is of note that when the spacing of honeycomb laminate two neighboring in multi-layer honeycomb shape laminate is not more than 10cm, removing
Effect is preferable, and when the spacing of honeycomb laminate two neighboring in multi-layer honeycomb shape laminate is not more than 5cm, removal effect is more
Good, when the spacing of honeycomb laminate two neighboring in multi-layer honeycomb shape laminate is equal to 3.5cm, effect is optimal.
Inventor passes through the experimental result of embodiment 2 and embodiment 3, is concluded that, not honeycomb laminate is set
Then removal effect is better for more intensive (spacing is smaller) set or honeycomb area smaller (inscribed circle radius is smaller), removing effect
Fruit is also related with the normal counter current contacting of flue gas and doctor solution, and the two be combined with each other, and generates optimal removal effect.
The foregoing is a specific embodiment of the present invention.It should be pointed out that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (8)
1. the device of condensation method cooperation-removal fine particle and sulfur trioxide acid mist, including desulfurizing tower, the desulfurizing tower include into
Cigarette channel, doctor solution spraying layer, demister and blowdown stack, it is characterised in that: the fume inlet passage inlet is provided with cold
Gas generating device is provided with multi-layer honeycomb shape laminate in the smoke-intake pipe road, and two neighboring honeycomb laminate is not overlapped, described
The air outlet of cold air generating device is additionally provided with water spray tower, the row at the fume inlet passage perpendicular to multi-layer honeycomb shape laminate
It puts chimney front end and is additionally provided with cold air generating device.
2. the device of condensation method cooperation-removal fine particle according to claim 1 and sulfur trioxide acid mist, feature exist
In: the inscribed circle radius of hexagon component units is 2-10mm in the honeycomb laminate.
3. the device of condensation method cooperation-removal fine particle according to claim 2 and sulfur trioxide acid mist, feature exist
In: the inscribed circle radius of hexagon component units is 3-5mm in the honeycomb laminate.
4. the device of condensation method cooperation-removal fine particle according to claim 3 and sulfur trioxide acid mist, feature exist
In: the inscribed circle radius of hexagon component units is 4mm in the honeycomb laminate.
5. the device of condensation method cooperation-removal fine particle according to claim 1 and sulfur trioxide acid mist, feature exist
In: the spacing of two neighboring honeycomb laminate is not more than 10cm in the multi-layer honeycomb shape laminate.
6. the device of condensation method cooperation-removal fine particle according to claim 5 and sulfur trioxide acid mist, feature exist
In: the spacing of two neighboring honeycomb laminate is not more than 5cm in multi-layer honeycomb shape laminate.
7. the device of condensation method cooperation-removal fine particle according to claim 6 and sulfur trioxide acid mist, feature exist
In: the spacing of two neighboring honeycomb laminate is equal to 3.5cm in multi-layer honeycomb shape laminate.
8. the device of condensation method cooperation-removal fine particle according to claim 1 and sulfur trioxide acid mist, feature exist
In: air blower is additionally provided at the smoke-intake pipe road, the exit of cold air generating device is arranged in the air blower.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821596470.9U CN209333504U (en) | 2018-09-29 | 2018-09-29 | A kind of device of condensation method cooperation-removal fine particle and sulfur trioxide acid mist |
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|---|---|---|---|
| CN201821596470.9U CN209333504U (en) | 2018-09-29 | 2018-09-29 | A kind of device of condensation method cooperation-removal fine particle and sulfur trioxide acid mist |
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| CN209333504U true CN209333504U (en) | 2019-09-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108939891A (en) * | 2018-09-29 | 2018-12-07 | 国电环境保护研究院 | A kind of device of condensation method cooperation-removal fine particle and sulfur trioxide acid mist |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108939891A (en) * | 2018-09-29 | 2018-12-07 | 国电环境保护研究院 | A kind of device of condensation method cooperation-removal fine particle and sulfur trioxide acid mist |
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