CN109833712A - Flue gas demisting purifies association system - Google Patents
Flue gas demisting purifies association system Download PDFInfo
- Publication number
- CN109833712A CN109833712A CN201711228276.5A CN201711228276A CN109833712A CN 109833712 A CN109833712 A CN 109833712A CN 201711228276 A CN201711228276 A CN 201711228276A CN 109833712 A CN109833712 A CN 109833712A
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- Prior art keywords
- demisting
- flue gas
- filtration tank
- purifies
- association system
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 81
- 239000003546 flue gas Substances 0.000 title claims abstract description 81
- 238000001914 filtration Methods 0.000 claims abstract description 50
- 239000007789 gas Substances 0.000 claims abstract description 34
- 239000000779 smoke Substances 0.000 claims abstract description 31
- 238000005406 washing Methods 0.000 claims abstract description 26
- 241000521257 Hydrops Species 0.000 claims abstract description 25
- 206010030113 Oedema Diseases 0.000 claims abstract description 25
- 239000012530 fluid Substances 0.000 claims abstract description 4
- 239000000571 coke Substances 0.000 claims description 24
- 239000002245 particle Substances 0.000 claims description 13
- 239000002253 acid Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 17
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 15
- 239000003344 environmental pollutant Substances 0.000 abstract description 13
- 231100000719 pollutant Toxicity 0.000 abstract description 13
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 abstract description 11
- 239000002923 metal particle Substances 0.000 abstract description 11
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 230000000717 retained effect Effects 0.000 abstract description 3
- 238000000746 purification Methods 0.000 description 18
- 238000004140 cleaning Methods 0.000 description 6
- 239000003513 alkali Substances 0.000 description 4
- 239000003595 mist Substances 0.000 description 4
- 230000005684 electric field Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000005686 electrostatic field Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005201 scrubbing Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 230000010718 Oxidation Activity Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000002920 hazardous waste Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000005200 wet scrubbing Methods 0.000 description 1
Abstract
The invention discloses flue gas demistings to purify association system, comprising: deentrainment tower, filtration tank and hydrops bucket.Wherein, the top of deentrainment tower has washing smoke inlet, and the bottom end of deentrainment tower has demisting exhanst gas outlet, is provided with electrode in deentrainment tower；The bottom end of filtration tank has demisting smoke inlet, and filtration tank top is exported with purifying smoke, is provided with gas distribution net in demisting smoke inlet, is provided with filter device in filtration tank；Hydrops bucket is located at the lower section of deentrainment tower and filtration tank, and the top of hydrops bucket has spaced two openings, and two openings are connected with demisting exhanst gas outlet and demisting smoke inlet respectively, and the bottom end of hydrops bucket has leakage fluid dram.The system has the effect of demisting, filtering, absorption and decomposing pollutant concurrently, droplet in flue gas can not only be effectively removed using the flue gas that the system is handled after washing, moreover it is possible to remaining pollutant, heavy metal particles, dioxin and organic gas in flue gas be made to be retained or be decomposed.
Description
Technical field
The invention belongs to exhaust-gas treatment fields, specifically, the present invention relates to flue gas demistings to purify association system.
Background technique
Solid waste incineration fume typically contains the pollutants such as sour gas, heavy metal particles, dioxin, and flue gas uses alkali
Liquid wet scrubbing processing technique be widely applied, lye is mainly sprayed in scrubbing tower, make acid gas in flue gas, heavy metal particles,
The pollutants such as dioxin, which are dissolved in cleaning solution, obtains separation removal, while containing droplet in tail gas, escapes pollutant with droplet
Into environment.In recent years, there is the report after scrubbing tower using electric demisting or reheating fog dispersal (eliminating white smoke), however according to existing danger
Incineration of waste processing engineering operation monitoring result shows that electric demisting is influenced by exhaust gas volumn, temperature change, and it is relatively low to have removal efficiency
The phenomenon that.Therefore, the method for flue gas demisting is further improved.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, of the invention
One purpose is proposition flue gas demisting purification association system, which has the effect of demisting, filtering, absorption and decomposing pollutant concurrently
Fruit can not only effectively remove the droplet in flue gas using the flue gas after system processing washing as a result, moreover it is possible to make residual in flue gas
Pollutant, heavy metal particles, dioxin and the organic gas stayed is retained or is decomposed.
According to an aspect of the present invention, the invention proposes a kind of flue gas demistings to purify association system, comprising:
Deentrainment tower, the top of the deentrainment tower have washing smoke inlet, and the bottom end of the deentrainment tower has demisting flue gas
It exports, is provided with electrode in the deentrainment tower；
The bottom end of filtration tank, the filtration tank has demisting smoke inlet, and the filtration tank top goes out with purifying smoke
Mouthful, it is provided with gas distribution net in the demisting smoke inlet, is provided with filter device in the filtration tank；
Hydrops bucket, the hydrops bucket are located at the lower section of the deentrainment tower and the filtration tank, the top tool of the hydrops bucket
There are spaced two openings, described two openings are connected with the demisting exhanst gas outlet and the demisting smoke inlet respectively
Logical, the bottom end of the hydrops bucket has leakage fluid dram.
Flue gas demisting according to the above embodiment of the present invention purifies association system, first using deentrainment tower to the cigarette after washing
Gas carries out electrostatic demisting, specifically, after the flue gas after washing enters deentrainment tower, the heavy metal of droplet and its carrying in flue gas
The equal directed movement under the action of electric field force of grain is simultaneously assembled, and finally falls to hydrops bucket under the effect of gravity；Further, it uses
Filtration tank is filtered the demisting flue gas obtained after electrostatic demisting, makes remaining droplet, heavy metal particles, two in demisting flue gas
It dislikes English and organic gas is trapped or decomposes, finally obtain purifying smoke.The above embodiment of the present invention flue gas demisting purifies as a result,
Association system not only can be further improved the demisting effect to washing flue gas by coupling electrostatic demisting with filtering absorption
The quality of fruit and finally obtained purifying smoke, moreover it is possible to which effectively solving electric demisting is influenced by exhaust gas volumn, temperature change and may be deposited
It is relatively low in removal efficiency, and individually to washing flue gas be filtered when exist easily saturation, the susceptible to plugging problem of filter layer.
In addition, flue gas demisting purification association system according to the above embodiment of the present invention can also have following additional skill
Art feature:
In some embodiments of the invention, the electrode is protruded into the deentrainment tower by the roof of the deentrainment tower.By
This, the pollutant that the alkali mist in washing flue gas can be effectively removed and carried with it.
In some embodiments of the invention, it is the demisting tower height degree that the electrode, which protrudes into the length in the deentrainment tower,
At least 2/3.Thus, it is possible to further increase the efficiency and effect for carrying out electrostatic demisting to the flue gas after washing.
In some embodiments of the invention, the filter device includes: supporting network and activated coke particle, the supporting network
It is horizontally set in the filtration tank chamber；The activated coke distribution of particles forms activated coke filtering layer on the supporting network.
Thus, it is possible to which remaining droplet, heavy metal particles, dioxin and organic gas in demisting flue gas is made to be retained or be decomposed.
In some embodiments of the invention, the activated coke filtering layer with a thickness of 0.8m.Thus, it is possible to further increase
The quality of purifying smoke.
In some embodiments of the invention, the gas distribution net and the supporting network are formed by acid resisting steel net.As a result, may be used
Effectively to avoid gas distribution net and supporting network from being corroded.
In some embodiments of the invention, flue gas demisting purification association system further comprises: pressure measuring unit, the survey
The upstream and downstream of the filter device is respectively set in the detector of pressure device, to detect the filtering lamination of the filter device
Power is poor.Thus, it is possible to which activated coke filtering layer is cleaned or is replaced in time.
In some embodiments of the invention, flue gas demisting purification association system further comprises: getter cover, the getter
Cover connects the demisting smoke inlet of the filtration tank and the top opening of the hydrops bucket, and the lower ending opening of the getter cover is greater than
Upper end opening.Thus, it is possible to further increase the efficiency for carrying out adsorption cleaning to washing flue gas.
In some embodiments of the invention, the sectional area of the lower part of the deentrainment tower is gradually reduced.Thus, it is possible into one
Step improves the effect that purification demisting is carried out to washing flue gas.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of flue gas demisting purification association system according to an embodiment of the invention.
Fig. 2 is the structural schematic diagram of the flue gas demisting purification association system of another embodiment according to the present invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
According to an aspect of the present invention, the invention proposes a kind of flue gas demistings to purify association system, as shown in Figure 1,
It include: deentrainment tower 100, filtration tank 200 and hydrops bucket 300.
Wherein, the top of deentrainment tower 100 has washing smoke inlet 110, and there is demisting flue gas to go out for the bottom end of deentrainment tower 100
Mouthfuls 120, electrode 130 is provided in deentrainment tower 100；The bottom end of filtration tank 200 has demisting smoke inlet 210, on filtration tank 200
Portion has purifying smoke outlet 220, is provided with gas distribution net 230 in demisting smoke inlet 210, filtering is provided in filtration tank 200
Device 240；Hydrops bucket 300 is located at the lower section of deentrainment tower 100 and filtration tank 200, and the top of hydrops bucket 300 has spaced
Two openings, two openings are connected with demisting exhanst gas outlet 120 and demisting smoke inlet 210 respectively, the bottom end of hydrops bucket 300
With leakage fluid dram 310.
Flue gas demisting according to the above embodiment of the present invention purifies association system, after being washed first using 100 Duis of deentrainment tower
Flue gas carry out electrostatic demisting, specifically, after the flue gas after washing enters deentrainment tower 100, droplet and its carrying in flue gas
Heavy metal particles etc. directed movement and are assembled under the action of electric field force, finally fall to hydrops bucket 300 under the effect of gravity；Into
One step, the demisting flue gas obtained after electrostatic demisting is filtered using filtration tank 200, makes remaining mist in demisting flue gas
Drop, heavy metal particles, dioxin and organic gas are trapped or decompose, and finally obtain purifying smoke.Above-mentioned reality of the invention as a result,
It applies a flue gas demisting purification association system to couple by adsorbing electrostatic demisting with filtering, not only can be further improved pair
Wash the defogging effect of flue gas and the quality of finally obtained purifying smoke, moreover it is possible to effectively solve electric demisting by exhaust gas volumn, temperature
Variation is influenced there may be removal efficiency is relatively low, and while being individually filtered to washing flue gas, to there is easily saturation, filter layer easy
The problem of blocking.
It is described in detail below with reference to flue gas demisting purification association system of the Fig. 1-2 to the above embodiment of the present invention.
According to a particular embodiment of the invention, by the way that gas distribution net 230 is arranged in demisting smoke inlet 210 in the present invention,
Demisting flue gas can be enable to be uniformly distributed in filtration tank 200, and then can further increase and demisting flue gas is adsorbed
The efficiency and effect of purification.
According to a particular embodiment of the invention, electrode 130 can be protruded into deentrainment tower 100 by the roof of deentrainment tower 100.This
Electrode 130 can be made to form electrostatic field in deentrainment tower 100 by using above-mentioned setting in invention, and then make to wash in flue gas
Droplet and its heavy metal particles of carrying etc. directed movement and are assembled under the active force of electric field force, finally under the effect of gravity under
Hydrops bucket 300 is dropped down onto, thus, it is possible to the pollutant for effectively removing the alkali mist in washing flue gas and carrying with it.
According to a particular embodiment of the invention, by the way that the washing flue gas obtained after wet cleaning depickling to be passed through in the present invention
Electrostatic demisting is carried out in deentrainment tower 100, can remove 70-90% droplet in washing flue gas.
According to a particular embodiment of the invention, it can be that deentrainment tower 100 is high that electrode 130, which protrudes into the length in deentrainment tower 100,
At least the 2/3 of degree.In the present invention by coordination electrode 130 protrude into the length in deentrainment tower 100 be 100 height of deentrainment tower at least
2/3, electrode 130 can be further increased and form the range of electrostatic field in deentrainment tower 100, and then can be further increased to washing
Flue gas after washing carries out the efficiency and effect of electrostatic demisting.
According to a particular embodiment of the invention, filter device 240 includes: supporting network 241 and activated coke particle 242, support
Net 241 is horizontally set in 200 chamber of filtration tank；Activated coke particle 242 is distributed on supporting network 241, and forms activated coke filter
Layer.By using above-mentioned setting, when can make demisting flue gas by activated coke filtering layer, remaining droplet, heavy metal in the present invention
Particle, dioxin and organic gas by effectively catching or decomposition, and then can effectively remove droplet remaining in demisting flue gas and
Particle and other a small amount of gaseous pollutants containing heavy metal, dioxin.Washing flue gas is carried out thus, it is possible to further increase
The effect of demisting purification, and then further increase the quality of purifying smoke.
According to a particular embodiment of the invention, activated coke particle 242 can be activated coke bulky grain.It is not only advantageous as a result,
In cleaning, prevent dust from blocking, can also keep absorption and oxidation activity, and then can make remaining droplet in demisting flue gas,
Heavy metal particles, dioxin and organic gas obtain effectively catching or decomposition.
According to a particular embodiment of the invention, the thickness of activated coke filtering layer can be 0.8m.Inventors have found that working as activated coke
When the thickness of filtering layer is too small, to droplet remaining in demisting flue gas and particle and other a small amount of gas containing heavy metal, dioxin
The removal effect of state pollutant is limited, not only can effectively be cut by control activated coke filtering layer with a thickness of 0.8m in the present invention
Droplet remaining in demisting flue gas, heavy metal particles, dioxin and organic gas are stayed or decomposed, and then further increases smoke-purifying
The quality of gas can also avoid activated coke particle from wasting.
According to a particular embodiment of the invention, flue gas demisting purification association system may further include: pressure measuring unit is (not
Show), the detector of pressure measuring unit can be separately positioned on the upstream and downstream of filter device, to detect the mistake of filter device
Filtering layer pressure difference.It, can be when stream pressure increases to control point to activated coke by the way that above-mentioned pressure measuring unit is arranged in the present invention
Filtering layer carries out automatic spray diluted acid and carries out the activated coke filtering layer for cleaning or more renewing.Thus, it is possible to which it is net to further increase flue gas demisting
Change efficiency and effect that association system carries out demisting purification to washing flue gas.
It according to a particular embodiment of the invention, can be according to the maintenance requirement of activated coke particle and the purification to demisting flue gas
Effect is cleaned or is replaced to activated coke filtering layer.It not only can be further improved flue gas demisting purification association system pair as a result,
Efficiency and effect that flue gas carries out demisting purification are washed, the utilization rate of activated coke particle can also be further increased.
According to a particular embodiment of the invention, gas distribution net 230 and supporting network 241 can be formed by acid resisting steel net.As a result,
It is possible to prevente effectively from gas distribution net 230 and supporting network 241 are corroded, and then further increase making for gas distribution net 230 and supporting network 241
Use the service life.
According to a particular embodiment of the invention, as shown in Fig. 2, flue gas demisting purification association system may further include:
Getter cover 400, getter cover 400 connect the demisting smoke inlet 210 of filtration tank 200 and the top opening of hydrops bucket 300, getter cover
400 lower ending opening is greater than upper end opening.By using above-mentioned setting in the present invention, can make in demisting flue gas stream to
Stream, and can smoothly enter into filtration tank 200, and then can be further improved the efficiency that adsorption cleaning is carried out to washing flue gas.
According to a particular embodiment of the invention, the sectional area of the lower part of deentrainment tower is gradually reduced.Thus, it is possible to further mention
Residence time of the height washing flue gas in deentrainment tower 100, and then can further increase and purification demisting is carried out to washing flue gas
Effect.
According to a particular embodiment of the invention, the droplet and pollutant washed in flue gas lodges in hydrops bucket 300, can be with
Periodically hydrops bucket 300 is cleared up, the liquid in hydrops bucket 300 can be used as Hazardous Wastes Management, disposition.Thus, it is possible to
Effectively the pollutant of the alkali mist in demisting flue gas and its carrying is avoided to pollute the environment.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
It can be combined in any suitable manner in a or multiple embodiment or examples.In addition, without conflicting with each other, the technology of this field
The feature of different embodiments or examples described in this specification and different embodiments or examples can be combined by personnel
And combination.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (9)
1. a kind of flue gas demisting purifies association system characterized by comprising
Deentrainment tower, the top of the deentrainment tower have washing smoke inlet, and the bottom end of the deentrainment tower has demisting exhanst gas outlet,
Electrode is provided in the deentrainment tower；
Filtration tank, the bottom end of the filtration tank have demisting smoke inlet, and the filtration tank top is exported with purifying smoke, institute
It states and is provided with gas distribution net in demisting smoke inlet, be provided with filter device in the filtration tank；
Hydrops bucket, the hydrops bucket is located at the lower section of the deentrainment tower and the filtration tank, between the top of the hydrops bucket has
Every two openings of setting, described two openings are connected with the demisting exhanst gas outlet and the demisting smoke inlet respectively,
The bottom end of the hydrops bucket has leakage fluid dram.
2. flue gas demisting according to claim 1 purifies association system, which is characterized in that the electrode is by the deentrainment tower
Roof protrude into the deentrainment tower.
3. flue gas demisting according to claim 1 purifies association system, which is characterized in that the electrode protrudes into the demisting
Length in tower is at least the 2/3 of the demisting tower height degree.
4. flue gas demisting according to claim 1 purifies association system, which is characterized in that the filter device includes:
Supporting network, the supporting network are horizontally set in the filtration tank chamber；
Activated coke particle, the activated coke distribution of particles form activated coke filtering layer on the supporting network.
5. flue gas demisting according to claim 4 purifies association system, which is characterized in that the thickness of the activated coke filtering layer
For 0.8m.
6. flue gas demisting according to claim 4 purifies association system, which is characterized in that the gas distribution net and the support
Net is formed by acid resisting steel net.
7. flue gas demisting according to claim 1 purifies association system, which is characterized in that further comprise: pressure measuring unit,
The upstream and downstream of the filter device is respectively set in the detector of the pressure measuring unit, to detect the mistake of the filter device
Filtering layer pressure difference.
8. flue gas demisting according to claim 1 purifies association system, which is characterized in that further comprise: getter cover, institute
It states getter cover and connects the demisting smoke inlet of the filtration tank and the top opening of the hydrops bucket, the lower end of the getter cover is opened
Mouth is greater than upper end opening.
9. flue gas demisting according to claim 1 purifies association system, which is characterized in that the lower part of the deentrainment tower is cut
Area is gradually reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711228276.5A CN109833712A (en) | 2017-11-29 | 2017-11-29 | Flue gas demisting purifies association system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711228276.5A CN109833712A (en) | 2017-11-29 | 2017-11-29 | Flue gas demisting purifies association system |
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| Publication Number | Publication Date |
|---|---|
| CN109833712A true CN109833712A (en) | 2019-06-04 |
Family
ID=66882245
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711228276.5A Pending CN109833712A (en) | 2017-11-29 | 2017-11-29 | Flue gas demisting purifies association system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112516719A (en) * | 2019-09-18 | 2021-03-19 | 陕西青朗万城环保科技有限公司 | Flue gas washing device |
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|---|---|---|---|---|
| CN105169914A (en) * | 2015-08-18 | 2015-12-23 | 中国瑞林工程技术有限公司 | Purifying apparatus and purifying method for treating incineration flue gas |
| CN205340465U (en) * | 2016-01-29 | 2016-06-29 | 长沙市维创环保工程设备有限公司 | High -efficient msw incineration schizolysis gas cleaning system |
| CN207755923U (en) * | 2017-11-29 | 2018-08-24 | 中国瑞林工程技术有限公司 | Flue gas demisting purifies association system |
-
2017
- 2017-11-29 CN CN201711228276.5A patent/CN109833712A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105169914A (en) * | 2015-08-18 | 2015-12-23 | 中国瑞林工程技术有限公司 | Purifying apparatus and purifying method for treating incineration flue gas |
| CN205340465U (en) * | 2016-01-29 | 2016-06-29 | 长沙市维创环保工程设备有限公司 | High -efficient msw incineration schizolysis gas cleaning system |
| CN207755923U (en) * | 2017-11-29 | 2018-08-24 | 中国瑞林工程技术有限公司 | Flue gas demisting purifies association system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112516719A (en) * | 2019-09-18 | 2021-03-19 | 陕西青朗万城环保科技有限公司 | Flue gas washing device |
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