CN108939748A - Aerosol dust-extraction unit, gas wash tower and dust removal method using the dust-extraction unit - Google Patents
Aerosol dust-extraction unit, gas wash tower and dust removal method using the dust-extraction unit Download PDFInfo
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- CN108939748A CN108939748A CN201710377186.6A CN201710377186A CN108939748A CN 108939748 A CN108939748 A CN 108939748A CN 201710377186 A CN201710377186 A CN 201710377186A CN 108939748 A CN108939748 A CN 108939748A
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- layer
- extraction unit
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- dust
- baffle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/02—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
- B01D47/028—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath by directing the gas through a wetted wire mesh or a perforated plate
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- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
A kind of aerosol dust-extraction unit includes: spraying layer, baffle layer, filter layer from the bottom to top；The upper surface of the baffle layer and the lower surface of the filter layer contact with each other, and the spraying layer and the baffle layer interval are arranged.A kind of aerosol gas wash tower includes: tower body, and bottom has gas outlet with air inlet, top, is provided with washing packing layer, at least one layer of aerosol dust-extraction unit at air inlet.A kind of aerosol dust removal method comprising: dusty gas is passed through to the air inlet of aerosol dust-extraction unit；Spray head is opened to the baffle layer and filter layer jet washing liquid above it；The spray angle and/or flow of spray head are adjusted, so that the cleaning solution that spray head sprays rinses the filter layer of each piece of baffle plate and whole；Collect the gas being discharged from gas outlet.Aerosol dust-extraction unit, gas wash tower and dust removal method demisting good dedusting effect of the invention, pressure drop is low, is not easy to plug.The expense that its installation and operation uses is low, meets energy-saving and environmental protection, efficient requirement.
Description
Technical field
The present invention relates to a kind of aerosol dust-extraction unit, use the gas wash tower and its dust removal method of the dust-extraction unit.
Background technique
Current China strict control Air Pollutant Emission, each local government and industry have put into effect tightened up atmosphere
Grain object discharge standard, granular material discharged standard generally drop to the standard of 10-30 milligrams/cubic meter, and demisting efficiency of dust collection will reach
90% or more.Pollutant each in exhaust gas is mixed, the widespread operating condition of particle size, traditional board-like demister and silk
Net demister is unable to satisfy the efficiency requirements of existing operating condition, and pocket type demister can not handle dust containing mist.
For example, at present in desulphurization and denitration, deacidification, except in the production procedures such as organic exhaust gas, gas wash tower be its capital equipment it
One, but in the device, since gas and the reaction of all kinds of cleaning solutions can generate at a large amount of steam and salts substances and front end
The dust of reason entrainment can carry out chimney by gas, and due to the deviation of design and operative practice, its particulate matter is arranged under actual condition
The pollutant composition complexity that index can be much higher than design parameter and be formed is put, pollution particulate matter range is also very wide.
Therefore, it is really necessary to design a kind of Combined classification processing different diameter airborne particle, the equipment of dust and droplet, with
It overcomes the deficiencies of existing technologies.
Summary of the invention
The object of the present invention is to provide a kind of demisting good dedusting effects, and pressure drop is low, the moist dust-extraction unit that is not easy to plug,
Using the gas wash tower of the dust-extraction unit, while meeting energy-saving and environmental protection, efficient requirement.
In order to reach above-mentioned purpose of design, aerosol dust-extraction unit of the invention is designed such that
A kind of aerosol dust-extraction unit, comprising: spraying layer, baffle layer, filter layer；The upper surface of the baffle layer and described
The lower surface of filter layer contacts with each other, and the spraying layer and the baffle layer interval are arranged.
Preferably, the spraying layer includes multiple spray heads, and the multiple spray head is evenly spaced to be disposed on the same plane.
Preferably, baffle layer, including multiple baffle plates and grid is arranged in the top of the spraying layer.
Preferably, the multiple baffle plate uniform intervals in the same horizontal position are arranged, or are in ridge-shaped or wave
Shape is uniformly arranged.
Preferably, the filter layer is by least one layer of 3 D filter screen, baffle, grid composition.
Preferably, the filter layer includes the 3 D filter screen of various different pore sizes, and the filter screen is close to the folding
The top of flowing plate layer is arranged, and the filter layer covers whole cross-sectional areas of the tower body.
Preferably, the baffle layer and the filter layer by grid integrally connected or are separately connected.
In order to reach above-mentioned purpose of design, aerosol gas wash tower of the invention is such that
A kind of aerosol gas wash tower, the gas wash tower include: tower body, and the bottom of the tower body has the top of air inlet, the tower body
With gas outlet, washing packing layer is being provided with close at the air inlet, be additionally provided on the washing packing layer to
Aerosol dust-extraction unit described in one layer few.
In order to reach above-mentioned purpose of design, aerosol dust removal method of the invention is such that
A kind of aerosol dust removal method comprising following steps: dusty gas: being passed through the air inlet of aerosol gas wash tower by step 1,
Gas to be processed is formed by the washing packing layer；Step 2: opening multiple spray heads in spraying layer, to it above baffling
Plate layer and filter layer jet washing liquid；Step 3: adjusting the spray angle and/or flow of spray head, so that spray head ejection is washed
The filter layer of each piece of baffle plate and whole can be rinsed by washing liquid；Step 4: the gas to be processed passes through at least one layer of institute
Aerosol dust-extraction unit is stated, the gas being discharged from gas outlet is collected.
Preferably, the spray head in each aerosol dust-extraction unit periodically separately or concurrently sprays；Same aerosol dust-extraction unit
In spray head periodically spray simultaneously.
Preferably, the separately adjustable spray angle of each spray head and/or flow in the spraying layer.
Aerosol dust-extraction unit of the invention, gas wash tower and method have the beneficial effect that demisting good dedusting effect, and pressure drop is low,
It is not easy to plug.The expense that its installation and operation uses does not need electricity consumption well below wet cottrell, meets section
It can, environmental protection, efficiently require.
Detailed description of the invention
Fig. 1 is schematic perspective view of the invention；
Fig. 2 is the structural schematic diagram of baffle layer and filter layer of the invention；
Fig. 3 is the scheme of installation of baffle, filter, grid in filter layer.
Specific embodiment
Below in conjunction with attached drawing, the technical scheme of the present invention will be further described.
It should be noted that word "front", "rear" used in the following description, "left", "right", "up" and "down" refer to
Direction in attached drawing, word "inner" and "outside" refer respectively to the side towards or away from the present invention or its geometric center of specific component
To.
As shown in Figure 1-Figure 3, aerosol dust-extraction unit 4 of the invention successively includes: spraying layer, baffle layer, filter layer.
Multiple spray heads 40 that the spraying layer includes grid, is arranged on the grid, the pipe to supply water for the spray head 40
Road is preferably also provided with compressor.The multiple spray head 40 is evenly spaced to be disposed on the same plane.
Baffle layer is arranged in the top of the spraying layer, and the baffle layer includes multiple baffle plates 42 and grid 46.Institute
Stating multiple baffle plates 42, also evenly spaced setting is uniformly arranged in the same horizontal position, or in ridge-shaped or waveform.
The filter layer is by least one layer of filter screen 44, and grid 46 forms, preferably can also according to actual needs,
Baffle 48 is arranged in external in the filter screen 44.The filter screen 44 can be the filter screen 44 of various different pore sizes, described
Gauze filter 44 is close to the top setting of the baffle layer.
It will be understood by those skilled in the art that the baffle layer and the filter layer are separately positioned on grid 46,
It is spaced each other a certain distance, it is preferable that the upper surface of the baffle layer and the lower surface of the filter layer contact with each other,
Using grid 46 by the baffle layer and the filter layer integrally connected.It is protected between the spraying layer and the baffle layer
A fixed spacing is stayed, which can uniformly wash away the baffle layer and the filtering with the cleaning solution for facilitating spray head 40 to spray
Subject to device layer.
It will be understood by those skilled in the art that gas of the baffle plate 42 for uniform dispersion to dedusting, therefore
Preferred arrangement forming V-shape on sectional view shown in FIG. 1, to enhance the effect of gas dispersion.The preferred China of the filter screen 44 is real
The 3 D filter screen disclosed in new patent CN204582683U.
It will be understood by those skilled in the art that the multiple spray head 40 spray rinsing liquid upwards, for rinsing above it
Baffle layer and filter layer, the position of the multiple spray head 40 and the position of multiple baffle plates 42 are mutually adapted, in combination with
The angle for adjusting 40 spray rinsing liquid of spray head, the cleaning solution that spray head 40 is sprayed are flushed to each piece of baffle plate 42 and complete
The filter layer in portion.Preferably, a spraying layer also can be set on the filter layer, and the spray head 40 of this layer is downward
Spray rinsing liquid.Similarly, retain a fixed spacing between the spraying layer and the filter layer, the spacing is to facilitate spray head 40 to spray
Cleaning solution can uniformly wash away subject to the filter layer and the baffle layer.
It will be understood by those skilled in the art that in order to increase the filter area of filter layer, the filter screen 44 of the filter layer
It is preferably provided with forming V-shape or wavy shaped configuration.In addition, the filter layer can be provided only with one layer of filter screen 44, also can be set
The filter screen 44 of multiple-layer stacked can also use the filter screen of different pore size superposed on one another in addition.It is multiple alternatively, it is also possible to use
Aerosol dust-extraction unit 4, so aerosol dust-extraction unit of the invention can achieve classification processing different-grain diameter dust and mist on the whole
The purpose of design of drop.
Aerosol gas wash tower of the invention includes: tower body 2 with air inlet A and gas outlet B, is disposed proximate to the air inlet
At least one layer of aerosol dust-extraction unit 4 of the invention washed on packing layer 3 is arranged in the washing packing layer 3 at the place mouthful A.
The bottom of the tower body 2 is arranged in the air inlet A, and the top of the tower body 2, institute is arranged in the gas outlet B
It states washing packing layer 3 and dust-extraction unit 4 of the invention is arranged between the air inlet A and the gas outlet B, and the aerosol
Dust-extraction unit 4 is arranged on the washing packing layer 3.Preferably, the aerosol dust-extraction unit 4 can make according to actual needs
With multilayer, so as to disposably handle the dust and droplet of different-grain diameter.Multiple baffle plates 42 described in the dust-extraction unit
The area of covering is about the 20%-100% of 2 cross-sectional area of tower body；Filter webs 44 described in the dust-extraction unit cover described
Whole cross-sectional areas of tower body 2.
Aerosol dust removal method of the invention the following steps are included:
Dusty gas: being passed through the air inlet A of aerosol gas wash tower by step 1, forms gas to be processed by the washing packing layer 3
Body；
Step 2: spray head 40 is opened to the baffle layer and filter layer jet washing liquid above it；
Step 3: adjusting spray angle, the flow of spray head 40, and the cleaning solution that spray head 40 is sprayed is flushed to each piece of folding
The filter layer of flowing plate and whole；
Step 4: the gas to be processed is discharged clear by least one layer of aerosol dust-extraction unit 4, collection from gas outlet B
Clean gas.
It will be understood by those skilled in the art that if being equipped with multilayer aerosol dust-extraction unit 4 in aerosol gas wash tower of the invention,
Injecting time, direction and the flow of spray head 40 in so each aerosol dust-extraction unit 4 should be adjusted respectively.Each aerosol dust-extraction unit
Spray head 40 in 4 can also jet douche simultaneously with alternating spray.Preferably, the spray head 40 in same aerosol dust-extraction unit 4
It periodically sprays simultaneously, and the separately adjustable spray angle of each spray head 40, flow.
Many details are elaborated in the above description to fully understand the present invention.But above description is only
Presently preferred embodiments of the present invention, the invention can be embodied in many other ways as described herein, therefore this
Invention is not limited by specific implementation disclosed above.Any those skilled in the art are not departing from the technology of the present invention simultaneously
In the case of aspects, all technical solution of the present invention is made using the methods and technical content of the disclosure above many possible
Changes and modifications or equivalent example modified to equivalent change.Anything that does not depart from the technical scheme of the invention, according to this
The technical spirit of invention any simple modifications, equivalents, and modifications made to the above embodiment, still fall within skill of the present invention
In the range of the protection of art scheme.
Claims (10)
1. a kind of aerosol dust-extraction unit, which is characterized in that the aerosol dust-extraction unit includes: spraying layer, baffle layer, filter
Layer；The upper surface of the baffle layer and the lower surface of the filter layer contact with each other, the spraying layer and the baffle plate
Interlayer is every setting.
2. aerosol dust-extraction unit according to claim 1, which is characterized in that the spraying layer includes multiple spray heads, described
Multiple spray heads are evenly spaced to be disposed on the same plane.
3. aerosol dust-extraction unit according to claim 1, which is characterized in that baffle plate is arranged in the top of the spraying layer
Layer, the baffle layer includes multiple baffle plates and grid.
4. aerosol dust-extraction unit according to claim 3, which is characterized in that the multiple baffle plate is in the same horizontal position
Upper uniform intervals setting, or be uniformly arranged in ridge-shaped or waveform.
5. aerosol dust-extraction unit according to claim 1, which is characterized in that the filter layer is vertical by least one layer
Body filter screen, baffle, grid composition.
6. aerosol dust-extraction unit according to claim 1 or 5, which is characterized in that the filter layer includes various differences
The 3 D filter screen in aperture, the filter screen are close to the top setting of the baffle layer, and the filter layer covers the tower
Whole cross-sectional areas of body.
7. aerosol dust-extraction unit according to claim 2, which is characterized in that the baffle layer and the filter layer are logical
It crosses grid integrally connected or is separately connected.
8. a kind of aerosol gas wash tower, the gas wash tower include: tower body, the bottom of the tower body has the top of air inlet, the tower body
Portion have gas outlet, washing packing layer is being provided with close at the air inlet, which is characterized in that the washing packing layer it
On be additionally provided with aerosol dust-extraction unit described at least one layer of claim 1-7 any one.
9. a kind of method that aerosol gas wash tower according to claim 8 carries out aerosol dedusting comprising following steps:
Dusty gas: being passed through the air inlet of aerosol gas wash tower by step 1, forms gas to be processed by the washing packing layer；
Step 2: opening multiple spray heads in spraying layer, to it above baffle layer and filter layer jet washing liquid；
Step 3: adjusting the spray angle and/or flow of spray head, and the cleaning solution that spray head is sprayed rinses each piece of baffle plate
And whole filter layer；
Step 4: the gas to be processed collects the gas being discharged from gas outlet by least one layer of aerosol dust-extraction unit.
10. aerosol dust removal method according to claim 9, it is characterised in that: the spray head period in each aerosol dust-extraction unit
Separately or concurrently spray to property；Spray head in same aerosol dust-extraction unit periodically sprays simultaneously, each in the spraying layer
The separately adjustable spray angle of a spray head and/or flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710377186.6A CN108939748A (en) | 2017-05-25 | 2017-05-25 | Aerosol dust-extraction unit, gas wash tower and dust removal method using the dust-extraction unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710377186.6A CN108939748A (en) | 2017-05-25 | 2017-05-25 | Aerosol dust-extraction unit, gas wash tower and dust removal method using the dust-extraction unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108939748A true CN108939748A (en) | 2018-12-07 |
Family
ID=64494063
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710377186.6A Pending CN108939748A (en) | 2017-05-25 | 2017-05-25 | Aerosol dust-extraction unit, gas wash tower and dust removal method using the dust-extraction unit |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2432455Y (en) * | 2000-08-04 | 2001-05-30 | 国家电力公司电力环境保护研究所 | Environmental protection dust-removing defroster |
| CN102423597A (en) * | 2011-10-14 | 2012-04-25 | 华南理工大学 | Intelligent anti-blocking demister used for wet flue gas desulfurization |
| CN202751924U (en) * | 2012-08-20 | 2013-02-27 | 中国石油化工集团公司 | Flue gas cleaning tower |
| CN103864163A (en) * | 2014-03-27 | 2014-06-18 | 广州中国科学院先进技术研究所 | Combined type nonmetal sea water desalination demister |
| CN104492167A (en) * | 2015-01-11 | 2015-04-08 | 吕宏俊 | Desulfurizing tower |
| CN204582683U (en) * | 2015-04-28 | 2015-08-26 | 张紫佩 | A kind of 3 D filter screen |
| CN105935519A (en) * | 2016-05-31 | 2016-09-14 | 江苏永钢集团有限公司 | Pipeline dedusting apparatus |
-
2017
- 2017-05-25 CN CN201710377186.6A patent/CN108939748A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2432455Y (en) * | 2000-08-04 | 2001-05-30 | 国家电力公司电力环境保护研究所 | Environmental protection dust-removing defroster |
| CN102423597A (en) * | 2011-10-14 | 2012-04-25 | 华南理工大学 | Intelligent anti-blocking demister used for wet flue gas desulfurization |
| CN202751924U (en) * | 2012-08-20 | 2013-02-27 | 中国石油化工集团公司 | Flue gas cleaning tower |
| CN103864163A (en) * | 2014-03-27 | 2014-06-18 | 广州中国科学院先进技术研究所 | Combined type nonmetal sea water desalination demister |
| CN104492167A (en) * | 2015-01-11 | 2015-04-08 | 吕宏俊 | Desulfurizing tower |
| CN204582683U (en) * | 2015-04-28 | 2015-08-26 | 张紫佩 | A kind of 3 D filter screen |
| CN105935519A (en) * | 2016-05-31 | 2016-09-14 | 江苏永钢集团有限公司 | Pipeline dedusting apparatus |
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