CN109499359A - Photocatalysis flue gas mercury removal device in a kind of chimney of electric plant - Google Patents

Photocatalysis flue gas mercury removal device in a kind of chimney of electric plant Download PDF

Info

Publication number
CN109499359A
CN109499359A CN201811612959.5A CN201811612959A CN109499359A CN 109499359 A CN109499359 A CN 109499359A CN 201811612959 A CN201811612959 A CN 201811612959A CN 109499359 A CN109499359 A CN 109499359A
Authority
CN
China
Prior art keywords
flue gas
photocatalysis
shell
chimney
removal device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811612959.5A
Other languages
Chinese (zh)
Inventor
吴江
贾焘
何平
王健敏
朱毅佳
齐雪梅
吴强
赵晓燕
周敏
吴嘉曦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai University of Electric Power
University of Shanghai for Science and Technology
Original Assignee
Shanghai University of Electric Power
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai University of Electric Power filed Critical Shanghai University of Electric Power
Priority to CN201811612959.5A priority Critical patent/CN109499359A/en
Publication of CN109499359A publication Critical patent/CN109499359A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86Catalytic processes
    • B01D53/8665Removing heavy metals or compounds thereof, e.g. mercury
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/007Separation 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 by irradiation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2257/00Components to be removed
    • B01D2257/60Heavy metals or heavy metal compounds
    • B01D2257/602Mercury or mercury compounds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2258/00Sources of waste gases
    • B01D2258/02Other waste gases
    • B01D2258/0283Flue gases
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2259/00Type of treatment
    • B01D2259/80Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
    • B01D2259/804UV light

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biomedical Technology (AREA)
  • Toxicology (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

The present invention relates to photocatalysis flue gas mercury removal devices in a kind of chimney of electric plant, including shell, the UV UV lamp unit set on shell and the photocatalytic reaction unit that is set in the housing, the photocatalytic reaction unit is made of multiple sheet metals, the sheet metal is radially arranged to " spider reticulation " structure, the catalyst supported on surface of the sheet metal centered on the axle center of shell.Compared with prior art, the present apparatus has the contact area bigger with flue gas, and flue gas and nano-photocatalyst can have more time haptoreactions, can effectively improve fume treatment efficiency.

Description

Photocatalysis flue gas mercury removal device in a kind of chimney of electric plant
Technical field
The present invention relates to a kind of photocatalysis flue gas mercury removal devices, and in particular to photocatalysis flue gas demercuration in a kind of chimney of electric plant Device.
Background technique
The fast development of human society be unable to do without the supply consumption of the energy, in the energy consumption structure in China, coal-fired number Amount about accounts for the 70% of non-renewable energy, and plurality of heavy metal is inevitably generated during the energy-consumings such as fire coal (Hg0) etc. pollutants cause environment to break ring.Heavy metal Hg etc. has the characteristics such as strong toxicity, volatility and biological accumulation, It is serious for breaking circumpolar to environment.In recent years, the heavy metal (Hg in coal-fired flue-gas is controlled0) etc. pollutants discharge increasingly by Concern, China also put into effect relevant national standard in 2011, it is desirable that Mercury In Coal Combustion Flue Gas discharge amount is strictly less than 0.03mg/ m3, therefore the task of top priority is to find a reliable removing heavy metal (Hg0) etc. pollutants method.
Pollutant mainly includes the substances such as oxycarbide, nitrogen oxides, oxysulfide, mercury and other heavy metals in flue gas. Heavy metal such as mercury highly volatile after fired coal combustion enters flue gas.For example, there are three types of existence form, nonvalent mercury, bivalent mercuries for mercury And particulate Hg, wherein nonvalent mercury almost all after fired coal combustion is discharged into the atmosphere, and can be enriched in vivo, is caused The serious broken ring of ecological environment.
There are mainly three types of modes for coal-fired flue-gas removing heavy metal: pre-processing before burning, controls after control, burning in burning. The present domestic and international research for burning removing heavy metal is less, lacks systematic further investigation and technological achievement.At present The main methods such as removing heavy metal Hg still utilize active carbon, and the adsorbents such as calcium chloride inhale heavy metal in flue gas mercury etc. Attached removing, but removal efficiency is not high, and the research of new adsorbent also lacks breakthrough achievement.Another method is to pass through power plant Fume treatment auxiliary heavy metal Hg etc. is removed, but power-plant flue gas processing equipment be difficult heavy metal Hg etc. is effectively de- It removes, therefore, it is very necessary to solve heavy metal in flue gas pollution problem to invent a kind of novel photocatalysis fume treatment structure.
Device and its application of a kind of removing gas mercury by photo-catalysis are disclosed in Chinese patent (CN102430328A), wherein It is supported on the method that titanium silk fiber is online, and UV ultraviolet source is installed in centre using nano TiO 2-SiO2, is segmented by multiple branch Detachable binocular tube is arranged in flue, will be oxidized to Hg by gaseous mercury in the flue gas in titanium wire network fiber2+, then pass through reality It sends out the lime slurry of desulphurization plant and removes, but the device takes off in such a way that nano TiO 2-SiO2 is supported on titanium silk fiber net Mercury efficiency is lower, and there are still certain gaseous mercuries in flue gas.It is disclosed in a kind of chimney in Chinese patent (CN107694334A) Photocatalysis mercury removal device, wherein using the corrugated metal thin plate of rotatable carried titanium dioxide/charcoal, UV lamp unit is set to Upper part or lower part, it is smaller with active catalyst time of contact and area increase when flue gas passes through, the raising of demercuration efficiency also compared with It is limited.
Summary of the invention
The purpose of the present invention is to solve the above-mentioned problems and provides photocatalysis flue gas demercuration dress in a kind of chimney of electric plant It sets.
The purpose of the present invention is achieved through the following technical solutions:
Photocatalysis flue gas mercury removal device in a kind of chimney of electric plant, including shell, set on shell UV UV lamp unit and The photocatalytic reaction unit being set in the housing, the photocatalytic reaction unit are made of multiple sheet metals, the sheet metal " spider reticulation " structure, the catalyst supported on surface of the sheet metal are radially arranged to centered on the axle center of shell.
Further, the shell is cylindrical shape, is made of inner shell and outer shell, and the inner shell is transparent Material, the outer shell are metal material, and the UV UV lamp unit is set between the inner shell and outer shell.
Further, the UV UV lamp unit is equipped with multiple, is equally spaced around in housing sidewall.
Further, the UV UV lamp unit includes UV ultraviolet lamp and conducting wire.
Further, the outside of the outer shell is equipped with the fixed ring for installation, and the fixed ring is equipped with a pair.
Further, the enclosure interior is equipped with multiple for installing the fixation demarcation plate of sheet metal, the fixation point Enclosure interior is divided into the sector of area equation by partition, and the sheet metal is mounted between adjacent fixed demarcation plate.
Further, the sheet metal has different length, and the sheet metal length of inside is longer than outside.
Further, the sheet metal is equipped with multilayer, is equally spaced from the radial direction of interior past outer shell.
Further, the catalyst is TiO2/BiOIO3Nano-photocatalyst material.
Further, which is equipped with the flue gas monitoring instrument for monitoring heavy metal in flue gas content.
The present invention is difficult to remove for the heavy metal in coal-fired flue-gas, such as gaseous mercury, and it is anti-that photocatalysis is arranged in shell Unit is answered, the unit is using load TiO2/BiOIO3Sheet metal constitute " spider reticulation " structure, chimney smoke by should When " spider reticulation " structure, barrier, shunting function through " spider reticulation " structural metal thin slice can more effectively capture cigarette Gas increases the contact area on flue gas and photocatalytic reaction unit and residence time.Loading in " spider reticulation " structure has The catalyst of absorption and catalysis double action, when flue gas passes through, can effectively contact with catalyst, and absorption occurs and light is urged Oxidation, advantageous to increase absorption and light-catalyzed reaction efficiency, UV UV lamp unit makes light source full of fume treatment structure, and And " spider reticulation " structure is somebody's turn to do to smoke flow resistance very little.Under the irradiation of UV lamp, when flue gas with this configuration when, photocatalysis Agent carries out more thorough catalysis oxidation to flue gas and gaseous mercury is such as oxidized to bivalent mercury by the heavy metal oxidation in flue gas.
The invention has the benefit that
1, " spider reticulation " structure that sheet metal is constituted, is effectively increased the time of contact of flue gas and catalyst and connects Contacting surface product, can significantly improve the efficiency of absorption and light-catalyzed reaction, be conducive to the further catalysis oxygen of heavy metal in flue gas Change, gaseous mercury is such as oxidized to bivalent mercury, the efficiency of heavy metal removing can significantly then be increased by adsorption treatment again.
2, inner shell is thermostable transparent quartz glass, can effectively make light source full of fume treatment structure, can So that catalyst in " spider reticulation " structure is effectively received UV ultraviolet lamp strong illumination, makes flue gas and photochemical catalyst under ultraviolet strong light Catalytic oxidation effectively occurs.
3, the configuration of the present invention is simple, mounting arrangements are convenient, operating cost is low, have the characteristics that dismantle, replace it is convenient.It can answer For related necks such as power-plant flue gas removing heavy metal, coal combustion equipment flue gas removing heavy metal, Industrial Boiler flue gas removing heavy metals Domain promotes in flue gas heavy metal Pollutant Control Technology and has broad prospects with application aspect.
Detailed description of the invention
Fig. 1 is the cross-sectional view of apparatus of the present invention;
Fig. 2 is the vertical section schematic diagram of apparatus of the present invention;
In figure: 1-UV ultraviolet lamp conducting wire;2- outer shell;3- fixed ring;4-UV ultraviolet lamp;5- inner shell;6- metal Thin slice;7- fixes demarcation plate.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
As shown in Figure 1, 2, photocatalysis flue gas mercury removal device in a kind of chimney of electric plant, including shell, set on the UV purple of shell Outer lamp unit and the photocatalytic reaction unit being set in the housing, photocatalytic reaction unit are made of multiple sheet metals 6, metal Thin slice 6 is radially arranged to " spider reticulation " structure, the catalyst supported on surface of sheet metal 6, sheet centered on the axle center of shell Embodiment uses photochemical catalyst for TiO2/BiOIO3, specifically, different metal thin slice 6 is connected, and centered on the shell center of circle Symmetrically be arranged to " spider reticulation " irradiation structure, can make flue gas with this configuration when time of contact and contact area significantly Increase, and is somebody's turn to do " spider reticulation " structure to the flow resistance very little of flue gas.
Shell is cylindrical shape, is made of inner shell 5 and outer shell 2, and inner shell 5 is transparent material, using resistance to height Warm transparency silica glass can make UV ultraviolet light sufficiently irradiate photocatalysis unit, be conducive to flue gas and active photocatalyst is adsorbed And catalytic oxidation sufficiently occurs.Outer shell 2 is metal material, and UV UV lamp unit is set to inner shell 5 and outer shell Between body 2.UV UV lamp unit be equipped with it is multiple, be equally spaced around in housing sidewall, UV UV lamp unit includes UV ultraviolet Lamp 4 and conducting wire 1, UV ultraviolet lamp tube unit are arranged symmetrically 10 between double Shell, and UV ultraviolet lamp position is reasonable, makes Light source is effectively full of fume treatment structure, reaches it most preferably to photocatalysis efficiency, and the outside of outer shell 2 is equipped with for installing Fixed ring 3, fixed ring 3 be equipped with a pair.Enclosure interior is equipped with multiple fixation demarcation plates 7 for being used to install sheet metal 6, fixed Enclosure interior is divided into the sector of area equation by demarcation plate 7, and sheet metal 6 is mounted between adjacent fixed demarcation plate 7.Metal Thin slice 6 have different length, 6 length of sheet metal of inside is longer than outside, sheet metal 6 be equipped with multilayer, from it is interior outward Radial direction along shell is equally spaced.
In addition, the device upper end is equipped with the flue gas monitoring instrument for monitoring heavy metal in flue gas content, to monitor in flue gas Heavy metal Hg equal size needs to carry out photocatalytic reaction unit the operation such as to replace when content exceeds critical field.
This example working principle is as follows:
Device cloth in chimney is fixed setting in the middle position of entire chimney height by installation fixed ring installation, Photochemical catalyst when flue gas passes through the fume treatment structure below chimney, on flue gas and photocatalysis unit " spider reticulation " structure It sufficiently contacts for a long time, is somebody's turn to do " spider reticulation " irradiation structure, be conducive to capture flue gas, increase the light that flue gas is loaded with it and urge agent Time of contact and contact area are conducive to the progress of photocatalysis oxidation reaction, improve the removal efficiency of the heavy metals such as mercury in flue gas. By the bivalent mercury of heavy metal such as gaseous state mercury oxidation by adsorption treatment, the pollution to atmospheric environment can be reduced.And at the same time setting Flue gas on-Line Monitor Device is set, which samples in chimney outlet, to monitor heavy metal in flue gas such as mercury content, When content exceeds critical field, need to replace sheet metal and photochemical catalyst, regenerate etc. operation.
The above description of the embodiments is intended to facilitate ordinary skill in the art to understand and use the invention. Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein general Principle is applied in other embodiments without having to go through creative labor.Therefore, the present invention is not limited to the above embodiments, ability Field technique personnel announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be of the invention Within protection scope.

Claims (10)

1. photocatalysis flue gas mercury removal device in a kind of chimney of electric plant, including shell, set on shell UV UV lamp unit and set In the intracorporal photocatalytic reaction unit of shell, which is characterized in that the photocatalytic reaction unit is made of multiple sheet metals (6), The sheet metal (6) is radially arranged to " spider reticulation " structure, the table of the sheet metal (6) centered on the axle center of shell Face supported catalyst.
2. photocatalysis flue gas mercury removal device in a kind of chimney of electric plant according to claim 1, which is characterized in that the shell It for cylindrical shape, is made of inner shell (5) and outer shell (2), the inner shell (5) is transparent material, the outer shell Body (2) is metal material, and the UV UV lamp unit is set between the inner shell (5) and outer shell (2).
3. photocatalysis flue gas mercury removal device in a kind of chimney of electric plant according to claim 1, which is characterized in that the UV is purple Outer lamp unit be equipped with it is multiple, be equally spaced around in housing sidewall.
4. photocatalysis flue gas mercury removal device in a kind of chimney of electric plant according to claim 3, which is characterized in that the UV is purple Outer lamp unit includes UV ultraviolet lamp (4) and conducting wire (1).
5. photocatalysis flue gas mercury removal device in a kind of chimney of electric plant according to claim 2, which is characterized in that the outer layer The outside of shell (2) is equipped with the fixed ring (3) for installation, and the fixed ring (3) is equipped with a pair.
6. photocatalysis flue gas mercury removal device in a kind of chimney of electric plant according to claim 1, which is characterized in that the shell Inside is equipped with multiple fixation demarcation plates (7) for being used to install sheet metal (6), and the fixed demarcation plate (7) divides enclosure interior It is segmented into the sector of area equation, the sheet metal (6) is mounted between adjacent fixed demarcation plate (7).
7. photocatalysis flue gas mercury removal device in a kind of chimney of electric plant according to claim 6, which is characterized in that the metal Thin slice (6) has different length, and sheet metal (6) length of inside is longer than outside.
8. photocatalysis flue gas mercury removal device in a kind of chimney of electric plant according to claim 7, which is characterized in that the metal Thin slice (6) is equipped with multilayer, is equally spaced from the radial direction of interior past outer shell.
9. photocatalysis flue gas mercury removal device in a kind of chimney of electric plant according to claim 1, which is characterized in that the catalysis Agent is TiO2/BiOIO3Nano-photocatalyst material.
10. photocatalysis flue gas mercury removal device in a kind of chimney of electric plant according to claim 1, which is characterized in that the device Upper end is equipped with the flue gas monitoring instrument for monitoring heavy metal in flue gas content.
CN201811612959.5A 2018-12-27 2018-12-27 Photocatalysis flue gas mercury removal device in a kind of chimney of electric plant Pending CN109499359A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811612959.5A CN109499359A (en) 2018-12-27 2018-12-27 Photocatalysis flue gas mercury removal device in a kind of chimney of electric plant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811612959.5A CN109499359A (en) 2018-12-27 2018-12-27 Photocatalysis flue gas mercury removal device in a kind of chimney of electric plant

Publications (1)

Publication Number Publication Date
CN109499359A true CN109499359A (en) 2019-03-22

Family

ID=65754964

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811612959.5A Pending CN109499359A (en) 2018-12-27 2018-12-27 Photocatalysis flue gas mercury removal device in a kind of chimney of electric plant

Country Status (1)

Country Link
CN (1) CN109499359A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112827351A (en) * 2020-12-25 2021-05-25 李红霞 Spraying line VOCs exhaust treatment device
CN112844037A (en) * 2020-12-25 2021-05-28 李红霞 Organic waste gas treatment device of paint spraying line

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102430328A (en) * 2011-09-26 2012-05-02 上海电力学院 Device for removing gas mercury by photo-catalysis and application thereof
CN106731821A (en) * 2017-02-28 2017-05-31 诺曼利尔(青岛)环境能源技术有限公司 The device of photochemical catalytic oxidation cleaning of off-gas
CN107694334A (en) * 2017-11-15 2018-02-16 上海电力学院 Photocatalysis mercury removal device in a kind of chimney
CN107694247A (en) * 2017-11-13 2018-02-16 安徽工业大学 A kind of air purification method based on water mist sprinkling and photocatalysis technology
JP2018047439A (en) * 2016-09-23 2018-03-29 株式会社エッチ・ケー・エス Catalytic metal carrier
CN209848674U (en) * 2018-12-27 2019-12-27 上海电力学院 Photocatalysis flue gas demercuration device in power plant's chimney

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102430328A (en) * 2011-09-26 2012-05-02 上海电力学院 Device for removing gas mercury by photo-catalysis and application thereof
JP2018047439A (en) * 2016-09-23 2018-03-29 株式会社エッチ・ケー・エス Catalytic metal carrier
CN106731821A (en) * 2017-02-28 2017-05-31 诺曼利尔(青岛)环境能源技术有限公司 The device of photochemical catalytic oxidation cleaning of off-gas
CN107694247A (en) * 2017-11-13 2018-02-16 安徽工业大学 A kind of air purification method based on water mist sprinkling and photocatalysis technology
CN107694334A (en) * 2017-11-15 2018-02-16 上海电力学院 Photocatalysis mercury removal device in a kind of chimney
CN209848674U (en) * 2018-12-27 2019-12-27 上海电力学院 Photocatalysis flue gas demercuration device in power plant's chimney

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112827351A (en) * 2020-12-25 2021-05-25 李红霞 Spraying line VOCs exhaust treatment device
CN112844037A (en) * 2020-12-25 2021-05-28 李红霞 Organic waste gas treatment device of paint spraying line
CN112827351B (en) * 2020-12-25 2022-12-30 日照职业技术学院 Spraying line VOCs exhaust treatment device
CN112844037B (en) * 2020-12-25 2023-01-03 日照职业技术学院 Organic waste gas treatment device of paint spraying line

Similar Documents

Publication Publication Date Title
CN206037266U (en) Photocatalytic air purification device
CN207815524U (en) A kind of air purifier having except ozone function
CN101843915A (en) Ultraviolet catalytic oxidation deodorizing device
CN207805342U (en) A kind of industry VOCs exhaust treatment systems
CN109499359A (en) Photocatalysis flue gas mercury removal device in a kind of chimney of electric plant
CN211753826U (en) Portable air purification device based on ozone and photocatalyst catalysis
CN211913351U (en) Exhaust treatment device for normal-temperature catalytic degradation of formaldehyde
CN104296251A (en) Rotating wheel type photocatalysis air purification device applied indoors
CN200948409Y (en) Air cleaner based on titanium dioxide/ activated carbon fiber photocatalyst
KR20040092811A (en) Air filtration system and method of the same
CN203469810U (en) Indoor air purifier
CN209848674U (en) Photocatalysis flue gas demercuration device in power plant's chimney
CN108176170A (en) A kind of novel photocatalyst catalysis oxidation cleaning equipment for waste organic gas
CN201668755U (en) Ultraviolet light catalyzing, oxidizing and deodorizing device
CN204637905U (en) A kind of exhaust treatment system
CN207307612U (en) A kind of photodissociation photocatalysis equipment for treating industrial waste gas
CN209464824U (en) A kind of photocatalysis flue gas processing device
CN207356894U (en) A kind of photocatalytic waste gas treatment device
CN216630238U (en) Harmful gas's absorption catalytic unit
CN208302495U (en) A kind of plastics-production equipment smell processing device
CN210584409U (en) Light-assisted chemical filtration adsorption device
CN108392954A (en) A kind of plastics-production equipment smell processing device
CN208512225U (en) A kind of low-temperature plasma processing unit of waste gas containing benzene
KR20010058569A (en) Air clean system for industry
CN203139897U (en) Air purifier

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination