CN109569232A - A kind of pneumatic type ozone distributor and flue - Google Patents
A kind of pneumatic type ozone distributor and flue Download PDFInfo
- Publication number
- CN109569232A CN109569232A CN201811547872.4A CN201811547872A CN109569232A CN 109569232 A CN109569232 A CN 109569232A CN 201811547872 A CN201811547872 A CN 201811547872A CN 109569232 A CN109569232 A CN 109569232A
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- China
- Prior art keywords
- pneumatic type
- flue
- ozone
- nozzle
- branch pipe
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/76—Gas phase processes, e.g. by using aerosols
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/104—Ozone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/404—Nitrogen oxides other than dinitrogen oxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention belongs to field of environment engineering technology, a kind of pneumatic type ozone distributor and flue are disclosed.The pneumatic type ozone distributor includes supervisor and turbulence structure, flow direction of the axis direction of supervisor perpendicular to flue gas, and it is provided with multiple distribution arms protruded into flue, multiple venturi distributors are provided in distribution arms, the opening of the diffuser of venturi distributor is provided with nozzle；Turbulence structure is oppositely arranged with nozzle, is configured as changing the flow direction for the streams of ozone that each nozzle sprays.Pneumatic type ozone distributor proposed by the present invention, by the way that turbulence structure is arranged, the flow direction for the streams of ozone that each nozzle sprays can be changed by lasting rotation, so that the flow range for the ozone that nozzle sprays reaches 360 °, promote ozone and NO Rapid contact and be uniformly mixed, to improve the efficiency that NO is oxidized.The pneumatic type ozone distributor is arranged inside in flue proposed by the present invention, can be improved the oxygenation efficiency of NO and the efficiency being oxidized.
Description
Technical field
The present invention relates to field of environment engineering technology more particularly to a kind of pneumatic type ozone distributors and flue.
Background technique
The content of NO is greater than 90%, NO and is insoluble in water in NOx in flue gas, and NO2With SO2Property is similar, soluble easily in water,
Sour gas is belonged to, achievees the purpose that removing easily in conjunction with alkaline matter, it is therefore desirable to NO is first oxidized to NO2,
It is being removed.
NO oxidation removal technology there are many, wherein odor at low temperature oxidation and denitration technology mainly utilizes the Strong oxdiative of ozone
Property, indissoluble NO is oxidized to readily soluble high-valence state nitrogen oxides before entering purification device, then with spray liquid by nitrogen oxides
Conversion is dissolved and absorbed, to realize the purpose of denitration.It is however noted that being higher than since ozone is very unstable in temperature
Resolution ratio is reinforced at 150 DEG C, therefore the dispersion effect of ozone and the contact effect with NO directly determine the oxygen of NO in flue
Change efficiency and subsequent absorption efficiency, so that the mixed effect of two kinds of gases becomes the weight of odor at low temperature oxidation and denitration technology development
Point, correspondingly, influence the ozone distributor of air flow method in flue is developed into hot spot.
The main function of ozone distributor is to promote the ozone for spraying into flue that ozone is uniformly mixed and reinforced with flue gas to cigarette
The oxidation efficiency of NO in gas, so that NO is oxidized to NO before entering purification device to the greatest extent2, and then guarantee denitration effect
Rate.But the ozone injection direction mode identical or opposite with flow of flue gas direction in existing ozone distributor, or and cigarette
Flow of air direction is a certain included angle so that ozone is unevenly distributed in flue, cannot be sufficiently mixed with flue gas, and then cause
The low efficiency that NO is oxidized.
Summary of the invention
The purpose of the present invention is to provide a kind of pneumatic type ozone distributor and flues, to realize ozone in flue uniformly
Distribution, can be sufficiently mixed with flue gas, improve the efficiency that NO is oxidized.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of pneumatic type ozone distributor, comprising:
Supervisor, axis direction and are provided with multiple distributions protruded into flue perpendicular to the flow direction of flue gas
Branch pipe is provided with multiple venturi distributors in the distribution arms, and the opening of the diffuser of the venturi distributor is set
It is equipped with nozzle；
Turbulence structure is arranged with the nozzle face, is configured as changing each nozzle ejection by lasting rotation
Streams of ozone flow direction.
Preferably, the turbulence structure includes installation part, rotor and spoiler, the rotor is equipped with more
It is a, and be all set on the installation part, a spoiler is respectively connected on each rotor.
Preferably, the spoiler it is identical as the quantity of the nozzle and correspond, and each spoiler with
Corresponding nozzle face setting.
Preferably, the spoiler includes the first surface slot being connected and the second curved surface slot, and the first surface
Slot and the second curved surface slot relative tilt setting.
Preferably, along the direction far from the second curved surface slot, the aperture of the first surface slot is gradually increased.
Preferably, the flow direction for extending perpendicularly to the flue gas of the distribution arms；Or
The flow direction of the relatively described flue gas of the extending direction of the distribution arms is obliquely installed.
Preferably, multiple venturi distributors are spacedly distributed along the axis direction of the distribution arms, and institute
The extending direction for stating venturi distributor is identical as the flow direction of the flue gas.
Preferably, the distribution arms include the first branch pipe and the second branch pipe, first branch pipe one end is connected to institute
Supervisor is stated, the other end is connected to second branch pipe, and the venturi distributor is provided on second branch pipe.
Preferably, further including control valve, the control valve is set to first branch pipe and/or second branch pipe
On.
To achieve the above object, it the present invention also provides a kind of flue, is provided in the flue described above pneumatic
Formula ozone distributor.
Beneficial effects of the present invention:
Pneumatic type ozone distributor proposed by the present invention, by the way that multiple venturi distributors are arranged, and on each literary mound
In nozzle is set on distributor, compared to the mode that nozzle is arranged directly in distribution arms, covering for ozone distribution can be increased
Capping, and the flowing velocity of ozone can be accelerated.By the way that turbulence structure is arranged, each nozzle can be changed by lasting rotation
The flow direction of the streams of ozone of ejection promotes ozone and NO fast so that the flow range for the ozone that nozzle sprays reaches 360 °
Quick access is touched and is uniformly mixed, to improve the efficiency that NO is oxidized.
The pneumatic type ozone distributor is arranged inside in flue proposed by the present invention, can be improved NO oxygenation efficiency and by
The efficiency of oxidation.
Detailed description of the invention
Fig. 1 is the main view of pneumatic type ozone distributor provided by the invention；
Fig. 2 is the side view of pneumatic type ozone distributor provided by the invention；
Fig. 3 is the mated condition schematic diagram of nozzle and spoiler provided by the invention.
In figure:
1, it is responsible for, 2, distribution arms；21, the first branch pipe；211, control valve；212, flange；22, the second branch pipe；3, Wen Qiu
In distributor；4, nozzle；41, external screw thread；51, installation axle；52, rotor, 53, spoiler；531, first surface slot；532,
Second curved surface slot；
6, flue.
Specific embodiment
To keep the technical problems solved, the adopted technical scheme and the technical effect achieved by the invention clearer, below
It will be described in further detail in conjunction with technical solution of the attached drawing to the embodiment of the present invention, it is clear that described embodiment is only
It is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those skilled in the art exist
Every other embodiment obtained under the premise of creative work is not made, shall fall within the protection scope of the present invention.
In the description of the present invention unless specifically defined or limited otherwise, term " connected ", " connection ", " fixation " are answered
It is interpreted broadly, for example, it may be being fixedly connected, may be a detachable connection, or is integral；It can be mechanical connection,
It can be electrical connection；It can be directly connected, the company inside two elements can also be can be indirectly connected through an intermediary
Logical or two elements interaction relationship.For the ordinary skill in the art, can be understood with concrete condition above-mentioned
The concrete meaning of term in the present invention.
Fig. 1 is the positive direction view for the pneumatic type ozone distributor that embodiment provides；Fig. 2 is pneumatic type provided in this embodiment
The lateral view of ozone distributor.As depicted in figs. 1 and 2, a kind of pneumatic type ozone distributor is present embodiments provided, is mainly answered
For in the Industrial Boiler of the industries such as thermoelectricity, steel or the flue of kiln, using odor at low temperature oxidizing process to the NO's in flue gas
It is aoxidized.The pneumatic type ozone distributor includes supervisor 1 and turbulence structure.
Wherein, supervisor 1 is connected to ozone supply apparatus, and the axis direction of supervisor 1 is perpendicular to the flow direction of flue gas, main
Multiple distribution arms 2 extending into inside flue 6 are provided on pipe 1, multiple distribution arms 2 are between axis direction of supervisor 1 etc.
Every distribution, and the extending direction of multiple distribution arms 2 is vertical with the flow direction of flue gas, wherein two neighboring distribution arms 2 it
Between the size at interval be configured as needed, but the present embodiment is without being limited thereto to the set-up mode of multiple distribution arms 2,
Multiple distribution arms 2 can also be distributed on supervisor 1 with unequal interval, and the extending direction for being distributed straight tube 2 can be with respect to the stream of flue gas
Dynamic direction is obliquely installed.
Multiple venturi distributors 3 are provided in distribution arms 2, in the present embodiment, multiple venturi distributors 3 along point
The axis direction of cloth branch pipe 2 is spacedly distributed, and the extending direction of venturi distributor 3 is identical as the flow direction of flue gas, i.e.,
The flow direction of the streams of ozone gone out by venturi distributor 3 is identical as the flow direction of flue gas, but the present embodiment is to literary mound
In distributor 3 set-up mode it is without being limited thereto, the extending direction of venturi distributor 3 can also be opposite with the flow direction of flue gas
Or it is at an angle.In addition, the opening of the diffuser of venturi distributor 3 is provided with nozzle 4.In the present embodiment,
Nozzle 4 is threadedly connected to venturi distributor 3, wherein the diffuser of venturi distributor 3 is internally provided with internal screw thread, spray
4 one end of mouth offers puff prot, and the external screw thread 41 matched with above-mentioned internal screw thread is arranged in the other end, convenient for nozzle 4 installation with
Disassembly, but the present embodiment is without being limited thereto to the connection type of nozzle 4 and venturi distributor 3, venturi distributor 3 and nozzle
4 can also be attached by the modes such as being clamped, welding.Venturi distributor 3 is structure common in the art, herein not
It repeats again.
Turbulence structure is oppositely arranged with nozzle 4, can change the streams of ozone that each nozzle 4 sprays by lasting rotation
Flow direction.
By the way that multiple venturi distributors 3 are arranged, and nozzle 4 is set on each venturi distributor 3, compared to straight
The mode that nozzle 4 is set in distribution arms 2 is connect, the covering surface of ozone distribution can be increased, and the stream of ozone can be accelerated
Dynamic speed.By the way that turbulence structure is arranged, the flowing side for the streams of ozone that each nozzle 4 sprays can be changed by lasting rotation
To so that the flow range of ozone that nozzle 4 sprays reaches 360 °, and enhancing the flow-disturbing effect to ozone and flue gas, promote
Ozone and NO Rapid contact are simultaneously uniformly mixed, to improve the efficiency that NO is oxidized.
In addition, being set as unanimously by the flow direction for the streams of ozone for spraying nozzle 4 and the flow direction of flue gas, energy
Enough avoid the goo plug nozzle 4 in moisture in flue gas, flue dust or flue gas.
As depicted in figs. 1 and 2, distribution arms 2 include the first branch pipe 21 and the second branch pipe 22.Wherein, the first branch pipe 21 1
End is connected to supervisor 1, and the other end is connected to the second branch pipe 22, above-mentioned venturi distributor 3 is provided on the second branch pipe 22.This
Outside, in the present embodiment, the first branch pipe 21 and the second branch pipe 22 are attached by flange 212, are easy for installation and maintenance, and
The second branch pipe 22 of different length is conveniently replaceable to adapt to the flue of different depth, but the present embodiment is to the first branch pipe 21 and
The connection type of two branch pipes 22 is without being limited thereto, the first branch pipe 21 and the second branch pipe 22 can also by weld, be clamped etc. modes into
Row connection.In addition, it is provided with control valve 211 on the first branch pipe 21 and/or the second branch pipe 22, it being capable of basis by control valve 211
The concentration of NO increaseds or decreases the intake of ozone in flue gas, under the premise of aoxidizing NO, saves the intake of ozone, reduces
Cost.
As shown in Figures 2 and 3, turbulence structure includes installation part, rotor 52 and spoiler 53.Wherein, installation part position
Inside flue, in the present embodiment, installation part includes multiple installation axles 51, the quantity of installation axle 51 and the number of distribution arms 2
It measures identical and corresponds, and be provided in each installation axle 51 parallel with distribution arms 2 of installation axle 51 along its axis direction more
A above-mentioned rotor 52, each rotor 52 are connected with a spoiler 53, spoiler 53 it is identical with the quantity of nozzle 4 and
It corresponds, and each spoiler 53 and corresponding 4 face of nozzle are arranged.Rotor 52 is common in the art
Structure, details are not described herein.
Specifically, spoiler 53 includes the first surface slot 531 and the second curved surface slot 532 that are connected, and first surface
Slot 531 and the setting of 532 relative tilt of the second curved surface slot.In addition, along the direction far from the second curved surface slot 532, first surface slot 531
Depth be gradually increased.In addition, in the present embodiment, spoiler 53 is made of alloy, preferably kirsite, kirsite is not only resistance to
Acidic materials (carbon dioxide, sulfur dioxide in flue gas etc.) corrosion, and there is good wearability, spoiler can be increased
53 service life, but the present embodiment is without being limited thereto to the material of spoiler 53, spoiler 53 can also be by other acid resistances
Substance corrosion and the material with excellent abrasive resistance are made, such as nickel-base alloy etc..
There is certain speed and pressure by the streams of ozone that the puff prot of nozzle 4 sprays, streams of ozone acts on first
The connectivity part of curved surface slot 531 or the second curved surface slot 532 or first surface slot 531 and the second curved surface slot 532, then along first
The outflow of the extending direction of curved surface slot 531 and the second curved surface slot 532, while under the action of streams of ozone impact force, spoiler 53
It is persistently rotated by rotor 52, so that the flow direction of streams of ozone is with first surface slot 531 and the second curved surface
The rotation of slot 532 and constantly change so that the flow range of ozone that nozzle 4 sprays reaches 360 °, and spoiler 53
Rotation flue gas is disturbed, enable to flue gas and ozone Rapid contact and be sufficiently mixed, so that NO and ozone
It comes into full contact with and is oxidized.In addition, aperture of the depth of first surface slot 531 along the direction far from the second curved surface slot 532 increases,
The cross-sectional area of namely first surface slot 531 is gradually increased, and facilitates the dispersion of ozone.
The present embodiment additionally provides a kind of flue, and above-mentioned pneumatic type ozone distributor is arranged inside, passes through the pneumatic type
Ozone distributor enables to ozone and the NO Rapid contact in flue gas and is sufficiently mixed, so that NO is oxidized to NO2, improve NO
Oxygenation efficiency and the efficiency that is oxidized, and the length of flue can be shortened, reduce cost.
Obviously, the above embodiment of the present invention is just for the sake of clearly illustrating examples made by the present invention, and being not is pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
Made any modifications, equivalent replacements, and improvements etc., should be included in the claims in the present invention within the spirit and principle of invention
Protection scope within.
Claims (10)
1. a kind of pneumatic type ozone distributor characterized by comprising
Be responsible for (1), axis direction perpendicular to flue gas flow direction, and be provided with it is multiple protrude into flue (6) point
Cloth branch pipe (2) is provided with multiple venturi distributors (3), the expansion of the venturi distributor (3) on the distribution arms (2)
The opening for dissipating section is provided with nozzle (4)；
Turbulence structure is oppositely arranged with the nozzle (4), is configured as changing each nozzle (4) spray by lasting rotation
The flow direction of streams of ozone out.
2. pneumatic type ozone distributor according to claim 1, which is characterized in that the turbulence structure include installation part,
Rotor (52) and spoiler (53), the rotor (52) are equipped with multiple, and are all set on the installation part, each
The rotor (52) is respectively connected with a spoiler (53).
3. pneumatic type ozone distributor according to claim 2, which is characterized in that the spoiler (53) and the nozzle
(4) quantity is identical and corresponds, and each spoiler (53) and the corresponding nozzle (4) face are arranged.
4. pneumatic type ozone distributor according to claim 2, which is characterized in that the spoiler (53) includes being connected
First surface slot (531) and the second curved surface slot (532), and the first surface slot (531) and the second curved surface slot (532)
Relative tilt setting.
5. pneumatic type ozone distributor according to claim 4, which is characterized in that along far from the second curved surface slot
(532) aperture in direction, the first surface slot (531) is gradually increased.
6. pneumatic type ozone distributor according to claim 1, which is characterized in that the extension side of the distribution arms (2)
To the flow direction perpendicular to the flue gas；Or
The flow direction of the relatively described flue gas of extending direction of the distribution arms (2) is obliquely installed.
7. pneumatic type ozone distributor according to claim 1, which is characterized in that multiple venturi distributors (3)
Axis direction along the distribution arms (2) is spacedly distributed, and the extending direction of the venturi distributor (3) and the cigarette
The flow direction of gas is identical.
8. pneumatic type ozone distributor according to claim 1, which is characterized in that the distribution arms (2) include first
Branch pipe (21) and the second branch pipe (22), described first branch pipe (21) one end are connected to the supervisor (1), and the other end is connected to described
Second branch pipe (22), and the venturi distributor (3) is provided on second branch pipe (22).
9. pneumatic type ozone distributor according to claim 8, which is characterized in that further include control valve (211), the control
Valve (211) processed is set on first branch pipe (21) and/or second branch pipe (22).
10. a kind of flue, which is characterized in that be arranged in the flue (6) just like the described in any item pneumatic types of claim 1-9
Ozone distributor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811547872.4A CN109569232A (en) | 2018-12-18 | 2018-12-18 | A kind of pneumatic type ozone distributor and flue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811547872.4A CN109569232A (en) | 2018-12-18 | 2018-12-18 | A kind of pneumatic type ozone distributor and flue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109569232A true CN109569232A (en) | 2019-04-05 |
Family
ID=65929811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811547872.4A Pending CN109569232A (en) | 2018-12-18 | 2018-12-18 | A kind of pneumatic type ozone distributor and flue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109569232A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110935302A (en) * | 2019-11-27 | 2020-03-31 | 西安热工研究院有限公司 | Dynamically adjustable flue ozone oxidation NOx control system and method |
| CN112316689A (en) * | 2020-10-22 | 2021-02-05 | 华北电力大学 | Low temperature oxidation denitration process ozone distributes and strengthens hybrid system |
| WO2021072814A1 (en) * | 2019-10-14 | 2021-04-22 | 中国科学院过程工程研究所 | Oxygen-enriched sintering flue gas circulation system and application thereof |
| CN113019098A (en) * | 2021-03-03 | 2021-06-25 | 湛江开发区隆源矿业有限公司 | Industrial flue gas SCR denitration mixed reaction device |
| CN113402011A (en) * | 2021-07-06 | 2021-09-17 | 北京摩研工业设计有限公司 | Ozone disinfection ship and manufacturing method thereof |
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| US3773897A (en) * | 1970-10-19 | 1973-11-20 | Steel Corp | Process for removing nitric oxide from gaseous mixtures |
| CN103877837A (en) * | 2014-02-26 | 2014-06-25 | 中国科学院过程工程研究所 | Flue ozone distributor applied to low-temperature oxidation denitration technology and arrangement manner thereof |
| CN206391868U (en) * | 2017-01-13 | 2017-08-11 | 国网河南省电力公司电力科学研究院 | A kind of SCR flue gas denitrification systems mixing ammonia-gas spraying device |
| CN207756010U (en) * | 2017-12-26 | 2018-08-24 | 中瑞工程设计院有限公司 | A kind of ozone static mixing device |
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2018
- 2018-12-18 CN CN201811547872.4A patent/CN109569232A/en active Pending
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|---|---|---|---|---|
| US3773897A (en) * | 1970-10-19 | 1973-11-20 | Steel Corp | Process for removing nitric oxide from gaseous mixtures |
| CN103877837A (en) * | 2014-02-26 | 2014-06-25 | 中国科学院过程工程研究所 | Flue ozone distributor applied to low-temperature oxidation denitration technology and arrangement manner thereof |
| CN103877837B (en) * | 2014-02-26 | 2016-01-27 | 中国科学院过程工程研究所 | A kind of flue ozone distributor and arrangement thereof being applied to low-temperature oxidation denitration technology |
| CN206391868U (en) * | 2017-01-13 | 2017-08-11 | 国网河南省电力公司电力科学研究院 | A kind of SCR flue gas denitrification systems mixing ammonia-gas spraying device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021072814A1 (en) * | 2019-10-14 | 2021-04-22 | 中国科学院过程工程研究所 | Oxygen-enriched sintering flue gas circulation system and application thereof |
| CN110935302A (en) * | 2019-11-27 | 2020-03-31 | 西安热工研究院有限公司 | Dynamically adjustable flue ozone oxidation NOx control system and method |
| CN110935302B (en) * | 2019-11-27 | 2022-04-01 | 西安热工研究院有限公司 | Dynamically adjustable flue ozone oxidation NOx control system and method |
| CN112316689A (en) * | 2020-10-22 | 2021-02-05 | 华北电力大学 | Low temperature oxidation denitration process ozone distributes and strengthens hybrid system |
| CN113019098A (en) * | 2021-03-03 | 2021-06-25 | 湛江开发区隆源矿业有限公司 | Industrial flue gas SCR denitration mixed reaction device |
| CN113402011A (en) * | 2021-07-06 | 2021-09-17 | 北京摩研工业设计有限公司 | Ozone disinfection ship and manufacturing method thereof |
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Application publication date: 20190405 |