CN107376637A - Containing the lacquer spraying waste gas processing unit by photooxidation catalysis system - Google Patents
Containing the lacquer spraying waste gas processing unit by photooxidation catalysis system Download PDFInfo
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- CN107376637A CN107376637A CN201710656671.7A CN201710656671A CN107376637A CN 107376637 A CN107376637 A CN 107376637A CN 201710656671 A CN201710656671 A CN 201710656671A CN 107376637 A CN107376637 A CN 107376637A
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- photooxidation
- air inlet
- waste gas
- catalyst chamber
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- 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
- B01D53/86—Catalytic processes
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
-
- 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
- B01D53/007—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 by irradiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/80—Type of catalytic reaction
- B01D2255/802—Photocatalytic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/702—Hydrocarbons
- B01D2257/7027—Aromatic hydrocarbons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
-
- 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
- B01D2258/0258—Other waste gases from painting equipments or paint drying installations
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Environmental & Geological Engineering (AREA)
- Toxicology (AREA)
- Biomedical Technology (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The invention discloses containing the lacquer spraying waste gas processing unit by photooxidation catalysis system, including photooxidation catalyst chamber, the side of the photooxidation catalyst chamber is communicated with the first air inlet pipe, the inlet end of first air inlet pipe connects with electrostatic precipitation room, the seal groove equipped with clarification limewash is provided with above photooxidation catalyst chamber, seal groove is connected with photooxidation catalyst chamber by connecting tube, the outlet side of connecting tube is located in seal groove and below clarification lime water level, the first escape pipe is also communicated with the side wall of photooxidation catalyst chamber, first escape pipe and the first air inlet pipe are in relative position, the outlet side of first escape pipe connects with spray chamber, spray chamber is communicated with hothouse, hothouse connects with photooxidation catalyst chamber.The present invention has carried out spray removal of impurities to the gas after photochemical catalytic oxidation and dried, and reduces the Dust Capacity of discharge gas, and removes the moisture in waste gas, improves the discharge efficiency of waste gas.
Description
Technical field
The present invention relates to a kind of waste gas treatment equipment, and in particular to is filled containing being handled by the lacquer spraying waste gas of photooxidation catalysis system
Put.
Background technology
The organic matters such as substantial amounts of formaldehyde, toluene, dimethylbenzene and NMHC can be produced in painting process, and with particle
Thing dust produces.These toxic chemical substances, the atmospheric environment around factory is polluted.Photooxidation waste gas treatment equipment is to spray
The improvement of paint operation can fundamentally protect factory's ambient atmosphere environment, reduce exhaust emission.Photochemical catalytic oxidation is to utilize catalysis
Agent (photocatalyst Ti02) photochemical catalytic oxidation, make absorption its surface volatile organic chemistry material occur redox it is anti-
Should, finally it is transformed into CO2, H20 or inorganic molecules material, this method equipment investment early stage is higher, but operating cost bottom, urges
Agent (photocatalyst Ti02) consumables cost is relatively low, easy to maintenance, performance safety is reliable, using extensive.Photooxidation waste gas treatment equipment
Technique comprises the following steps：Waste gas initially enters spray column under the traction of blower fan after piping is collected and carries out water process removal
Coating cloud particle, then steam separation is carried out by steam trap at the top of spray column, reduce EGT；By steam trap
Gas is dried into drying machine, and dried gas enters photooxidation catalysis system and carries out photocatalysis, is reached finally by chimney
Mark discharge.
Contain substantial amounts of carbon dioxide and moisture in gas after photooxidation catalysis, CO2 emission in the environment can be right
Environment pollutes, and after existing photochemical catalytic oxidation, once photocatalytic oxidation device breaks down, its of discharge is extraordinary still
Contain substantial amounts of volatile organic matter and a large amount of dust；Due to containing large quantity of moisture in gas after photochemical catalytic oxidation, water is not only
Can dissolve soluble substance in portion can also attachment portion dust granules, dust granules can be coated in water droplet finally with
Gas is discharged together, adds the Dust Capacity in environment；Gas containing carbon dioxide and moisture during discharging,
Gas containing large quantity of moisture discharges than dry gas, big energy-consuming, also, the gas containing large quantity of moisture can cause corruption to chimney
Erosion.In summary, existing photooxidation catalytic unit is when to waste treatment, before waste emission, can not quick detection go out it is useless
Whether the organic matter in gas is decomposed into carbon dioxide and moisture, reduces waste gas discharge efficiency；Photocatalysis will directly be passed through
Gas after oxidation Decomposition is discharged from chimney, and the gas interior of discharge contains great amount of carbon dioxide and moisture, or can be external
Boundary's environment causes necessarily to pollute, and exhaust treatment efficiency is low, of poor quality；Contain moisture in gas, the translational speed of gas can be slowed down,
So as to reduce waste gas rate of discharge, power consumption is added.
The content of the invention
The technical problems to be solved by the invention are that the efficiency of existing exhaust-gas treatment is low, and discharge efficiency is low, also contains in gas
A certain amount of pollutant is measured, and it is an object of the present invention to provide containing the lacquer spraying waste gas processing unit by photooxidation catalysis system, is solved existing useless
The efficiency of the photooxidation catalytic unit processing waste gas of gas disposal is low, the problem of exhaust mass difference after processing.
The present invention is achieved through the following technical solutions：
Containing the lacquer spraying waste gas processing unit by photooxidation catalysis system, including photooxidation catalyst chamber, the photooxidation catalysis
The side of room is communicated with the first air inlet pipe, and the inlet end of the first air inlet pipe connects with electrostatic precipitation room, photooxidation catalyst chamber it is upper
Side is provided with the seal groove equipped with clarification limewash, and seal groove is connected with photooxidation catalyst chamber by connecting tube, and connecting tube goes out
Gas end is located in seal groove and below clarification lime water level, the first outlet is also communicated with the side wall of photooxidation catalyst chamber
Pipe, the first escape pipe and the first air inlet pipe are in relative position, and the outlet side of the first escape pipe connects with spray chamber, and spray chamber connects
Hothouse is connected with, hothouse connects with photooxidation catalyst chamber.
The present invention changes the procedure of processing of photooxidation Catalytic processes, and the present invention carries out photooxidation catalysis to by waste gas,
Carrying out spraying and dedusting and drying, dried gas can directly be discharged, and improve gas discharge efficiency；After being dried
Gas can also circulate and be passed through entering light oxidation catalysis room and carry out twice decomposition, solve existing gas and decompose incomplete, discharge
Gaseous mass is low, more than pollutant residual volume the problem of；The present invention is installed on above photooxidation catalyst chamber to be catalyzed with photooxidation
The seal groove of room connection, the clarification limewash inside seal groove can detect to the gas after the decomposition of photooxidation catalyst chamber, if
There is great amount of carbon dioxide outflow, then, clarification limewash can quickly become cloudy, and have carbon dioxide outflow explanation photooxidation catalyst chamber
In normal work, waste gas has been decomposed；Gas interior after being decomposed contains moisture, is passed into after carrying out in spray chamber, favorably
In the dust for gas of going out, in photochemical catalytic oxidation room, part dust is wrapped in water droplet, becomes liquid solid fraction from gas-solid state
State, and the water curtain that the water droplet of dust outer wrap can be quickly with spraying in spray chamber mixes, and improves dust removal efficiency, enters
One step reduces the Dust Capacity in waste gas discharge；Hothouse will be dried by shower room internal gas, remove in gas
Moisture, the flow efficiency of gas is favorably improved, increases discharge efficiency, dried gas is discharged, and is advantageous to extend row
The blower fan of deflation or the service life of chimney, play anti-rust action；The present invention realization principle be：Waste gas passes through electrostatic precipitation
Rough dusting is carried out behind room, removes part organic particle or dust, is advantageous to improve point that waste gas carries out photochemical catalytic oxidation
Solution rate, the waste gas that electrostatic precipitation can keep entering in photochemical catalytic oxidation room are dried, it is not necessary to carry out photochemical catalytic oxidation in waste gas
It is dried before room, simplifies processing technology；Waste gas after rough dusting carries out photochemical catalytic oxidation room, and the volatility in waste gas has
Machine thing can be decomposed into carbon dioxide and water, now, the gas in photooxidation catalyst chamber is passed through into seal groove, if in seal groove
Clarification limewash there is bubble to emerge and quickly become cloudy, after a period of time, muddy clarification limewash become clarification, illustrate had
The carbon dioxide of amount is passed through in seal groove, illustrates that waste gas is in normal operating conditions by photochemical catalytic oxidation, photochemical catalytic oxidation room,
Then, the waste gas after photochemical catalytic oxidation is passed through into spray chamber and carries out final dusting, done after final dusting in hothouse
Dry, dried gas can be expelled directly out, and can also be recycled and be passed through into photochemical catalytic oxidation room, carry out twice decomposition, be protected
Pollutant load is up to standard in the last gas for drying discharge of card, and lowers it as far as possible on pollutant load basis up to standard and contain
Amount.The present invention has carried out spray removal of impurities to the gas after photochemical catalytic oxidation and dried, and reduces the Dust Capacity of discharge gas, and
The moisture in waste gas is removed, improves the discharge efficiency of waste gas；Present invention, avoiding part volatile organic matter to be wrapped in water droplet
In, as water droplet is together discharged, environment is polluted, the volatile organic matter being wrapped in water droplet will not be decomposed；This
When invention works in photochemical catalytic oxidation room, the seal groove containing clarification limewash can effectively simultaneously quick detection goes out photochemical catalytic oxidation
The working condition of room, the gas after being only decomposed could discharge, and clarification limewash can not only detect whether waste gas is divided
Solution, additionally it is possible to react away partial CO 2, reduce the discharge capacity of carbon dioxide.
First air inlet pipe, the first escape pipe, valve is provided with connecting tube.During the first air inlet pipe air inlet, connection
Pipe and the first outlet seal of tube；After air inlet, the first air inlet pipe is closed, after photochemical catalytic oxidation certain time, is opened to connect
Pipe, become clear again if thering is bubble to emerge in clarification limewash and clarifying after limewash becomes mixed, illustrate there is great amount of carbon dioxide generation,
Now, the first escape pipe is opened, the gas after photochemical catalytic oxidation is passed through in spray chamber.
The lower section of the photooxidation catalyst chamber sets the second air inlet pipe being in communication with the outside, and is set at the top of photooxidation catalyst chamber
The second escape pipe is equipped with, air cleaner is installed inside the second air inlet pipe, the second air inlet pipe coordinates with the second escape pipe to be realized
Taken a breath inside photooxidation catalyst chamber.Photochemical catalytic oxidation room after a photochemical catalytic oxidation, inside may remnants excessively have part wave
Hair property organic matter and carbon dioxide, the gas in hothouse, which is passed through in photochemical catalytic oxidation room, can cause secondary pollution, reduce
The operating efficiency of photochemical catalytic oxidation room, the pollutant load in the gas finally discharged are more than desired value；Therefore, the present invention passes through
Second air inlet pipe, the second escape pipe coordinate, and when the first air inlet pipe, the first escape pipe, connecting tube close, open the second outlet
Pipe, the gas of photochemical catalytic oxidation chamber interior is released, this gas released can be passed directly into spray chamber, can also be polluted
Direct out discharge after thing content detection, later on second air inlet pipe, by the gas of air cleaner from the second air inlet pipe
It is interior to enter photochemical catalytic oxidation room, and its internal carbon dioxide and some organic pollutants is excluded, realize the function that air is changed；
Dry air can also remove the partial moisture in photochemical catalytic oxidation room.
The control valve of its conducting of control is provided with second air inlet pipe, the second escape pipe.
At least two drenchers are provided with spray chamber.Drencher is used to produce water curtain.
The present invention compared with prior art, has the following advantages and advantages：
1st, the present invention contains is carried out by the lacquer spraying waste gas processing unit of photooxidation catalysis system to the gas after photochemical catalytic oxidation
Spray removal of impurities and dry, reduce the Dust Capacity of discharge gas, and remove the moisture in waste gas, improve the discharge of waste gas
Efficiency；
2nd, the present invention contains avoids part volatile organic matter bag by the lacquer spraying waste gas processing unit of photooxidation catalysis system
It is rolled in water droplet, as water droplet is together discharged, environment is polluted, being wrapped in volatile organic matter in water droplet will not be by
Decompose；
3rd, when the present invention contains by being worked in the lacquer spraying waste gas processing unit of photooxidation catalysis system in photochemical catalytic oxidation room, contain
The seal groove for having clarification limewash can effectively and quick detection goes out the working condition of photochemical catalytic oxidation room, after being only decomposed
Gas could discharge, and clarification limewash can not only detect whether waste gas is decomposed, additionally it is possible to partial CO 2 is reacted away,
Reduce the discharge capacity of carbon dioxide.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, forms one of the application
Point, do not form the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is schematic structural view of the invention.
Mark and corresponding parts title in accompanying drawing：
1- photooxidation catalyst chambers, the air inlet pipe of 2- first, 3- electrostatic precipitations room, 4- seal grooves, 5- connecting tubes, the outlets of 6- first
Pipe, 7- spray chambers, 8- drenchers, 9- hothouses, the air inlet pipe of 10- second, the escape pipes of 11- second, 12- air cleaners.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment 1
As shown in figure 1, the present invention contains the lacquer spraying waste gas processing unit by photooxidation catalysis system, including photooxidation catalyst chamber
1, the side of the photooxidation catalyst chamber 1 is communicated with the first air inlet pipe 2, and inlet end and the electrostatic precipitation room 3 of the first air inlet pipe 2 connect
Logical, the top of photooxidation catalyst chamber 1 is provided with the seal groove 4 equipped with clarification limewash, and seal groove 4 is logical with photooxidation catalyst chamber 1
Cross connecting tube 5 to connect, the outlet side of connecting tube 5 is located in seal groove 4 and below clarification lime water level, photooxidation catalyst chamber
The first escape pipe 6 is also communicated with 1 side wall, the first escape pipe 6 and the first air inlet pipe 2 are in relative position, the first escape pipe 6
Outlet side connected with spray chamber 7, spray chamber 7 is communicated with hothouse 9, and hothouse 9 connects with photooxidation catalyst chamber 1.Described
One air inlet pipe 2, the first escape pipe 6, valve is provided with connecting tube 5.At least two drenchers 8 are provided with spray chamber 7.
The present invention realization principle be：Waste gas carries out rough dusting behind electrostatic precipitation room, removes partial organic substances
Grain or dust, be advantageous to improve the resolution ratio that waste gas carries out photochemical catalytic oxidation, electrostatic precipitation can keep entering photocatalytic-oxidation
Change indoor waste gas to dry, it is not necessary to be dried before waste gas carries out photochemical catalytic oxidation room, simplify processing technology；Tentatively remove
Waste gas after dirt carries out photochemical catalytic oxidation room, and the volatile organic matter in waste gas can be decomposed into carbon dioxide and water, now, by light
Gas in oxidation catalysis room is passed through into seal groove, if the clarification limewash in seal groove has bubble to emerge and quickly becomes muddy
Turbid, after a period of time, muddy clarification limewash becomes clarification, illustrates have excessive carbon dioxide to be passed through in seal groove, illustrates useless
Gas is in normal operating conditions by photochemical catalytic oxidation, photochemical catalytic oxidation room, then, by the waste gas after photochemical catalytic oxidation be passed through into
Spray chamber carries out final dusting, is dried after final dusting in hothouse, dried gas can be expelled directly out, and also may be used
It is passed through with recycling into photochemical catalytic oxidation room, carries out twice decomposition, ensures pollutant load in the last gas for drying discharge
It is up to standard, and lower its content as far as possible on pollutant load basis up to standard.The present invention enters to the gas after photochemical catalytic oxidation
Spray of having gone is cleaned and dried, and reduces the Dust Capacity of discharge gas, and removes the moisture in waste gas, improves the row of waste gas
Put efficiency；Present invention, avoiding part volatile organic matter to be wrapped in water droplet, and as water droplet is together discharged, environment is caused
Pollution, the volatile organic matter being wrapped in water droplet will not be decomposed；When the present invention works in photochemical catalytic oxidation room, contain clarification
The seal groove of limewash can effectively simultaneously quick detection goes out the working condition of photochemical catalytic oxidation room, and the gas after being only decomposed is
It can discharge, clarification limewash can not only detect whether waste gas is decomposed, additionally it is possible to react away partial CO 2, reduce two
The discharge capacity of carbonoxide.During the first air inlet pipe air inlet, connecting tube and the first outlet seal of tube；After air inlet, close first and enter
Tracheae, after photochemical catalytic oxidation certain time, open and carry out connecting tube, if thering is bubble to emerge in clarification limewash and clarifying limewash
Become clear again after becoming mixed, illustrate there is great amount of carbon dioxide generation, now, the first escape pipe is opened, by after photochemical catalytic oxidation
Gas is passed through in spray chamber.
Embodiment 2
Based on embodiment 1, the lower section of the photooxidation catalyst chamber 1 sets the second air inlet pipe 10 being in communication with the outside, photooxidation
The top for changing catalyst chamber 1 is provided with the second escape pipe 11, and air cleaner 12, the second air inlet are provided with inside the second air inlet pipe 10
The escape pipe 11 of pipe 10 and second, which coordinates, realizes that the inside of photooxidation catalyst chamber 1 is taken a breath.In second air inlet pipe 10, the second escape pipe 11
It is provided with the control valve of its conducting of control.
Photochemical catalytic oxidation room after a photochemical catalytic oxidation, inside may remnants excessively have part volatile organic matter and two
Carbon oxide gas, the gas in hothouse, which is passed through in photochemical catalytic oxidation room, can cause secondary pollution, reduce photochemical catalytic oxidation room
Operating efficiency, the pollutant load in the gas finally discharged are more than desired value；Therefore, the present invention passes through the second air inlet pipe, the
Two escape pipes coordinate, and when the first air inlet pipe, the first escape pipe, connecting tube close, the second escape pipe are opened, by photocatalytic-oxidation
The gas for changing chamber interior is released, and this gas released can be passed directly into spray chamber, after can also carrying out pollutant load detection
Discharge is directed out, later on second air inlet pipe, enters photocatalysis out of second air inlet pipe by the gas of air cleaner
Oxidizing chamber, and its internal carbon dioxide and some organic pollutants is excluded, realize the function that air is changed；Dry air is also
The partial moisture in photochemical catalytic oxidation room can be removed.
Above-described embodiment, the purpose of the present invention, technical scheme and beneficial effect are carried out further
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., all should include
Within protection scope of the present invention.
Claims (5)
1. containing the lacquer spraying waste gas processing unit by photooxidation catalysis system, including photooxidation catalyst chamber (1), it is characterised in that institute
The side for stating photooxidation catalyst chamber (1) is communicated with the first air inlet pipe (2), inlet end and the electrostatic precipitation room of the first air inlet pipe (2)
(3) connect, the seal groove (4) equipped with clarification limewash, seal groove (4) and photooxidation are provided with above photooxidation catalyst chamber (1)
Change catalyst chamber (1) to connect by connecting tube (5), the outlet side of connecting tube (5) is located in seal groove (4) and in clarification lime aqueous
Below face, the first escape pipe (6), the first escape pipe (6) and the first air inlet pipe are also communicated with the side wall of photooxidation catalyst chamber (1)
(2) relative position is in, the outlet side of the first escape pipe (6) connects with spray chamber (7), and spray chamber (7) is communicated with hothouse
(9), hothouse (9) connects with photooxidation catalyst chamber (1).
2. the lacquer spraying waste gas processing unit according to claim 1 contained by photooxidation catalysis system, it is characterised in that described
First air inlet pipe (2), the first escape pipe (6), connecting tube are provided with valve on (5).
3. the lacquer spraying waste gas processing unit according to claim 1 contained by photooxidation catalysis system, it is characterised in that described
The lower section of photooxidation catalyst chamber (1) sets the second air inlet pipe (10) being in communication with the outside, and the top of photooxidation catalyst chamber (1) is set
There is the second escape pipe (11), air cleaner (12), the second air inlet pipe (10) and second are installed inside the second air inlet pipe (10)
Escape pipe (11), which coordinates, realizes ventilation inside photooxidation catalyst chamber (1).
4. the lacquer spraying waste gas processing unit according to claim 3 contained by photooxidation catalysis system, it is characterised in that second
The control valve of its conducting of control is provided with air inlet pipe (10), the second escape pipe (11).
5. the lacquer spraying waste gas processing unit according to claim 1 contained by photooxidation catalysis system, it is characterised in that spray
At least two drenchers (8) are provided with room (7).
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| CN201710656671.7A CN107376637A (en) | 2017-08-03 | 2017-08-03 | Containing the lacquer spraying waste gas processing unit by photooxidation catalysis system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108404623A (en) * | 2018-04-29 | 2018-08-17 | 浙江瑞鑫环保设备有限公司 | A kind of high-efficiency purification treatment equipment of exhaust gas |
| CN109078487A (en) * | 2018-08-27 | 2018-12-25 | 郑州莉迪亚医药科技有限公司 | A kind of use for laboratory pharmacy emission-control equipment |
| CN111265988A (en) * | 2020-03-05 | 2020-06-12 | 深圳市晶灿生态环境科技有限公司 | Chicken essence factory waste gas treatment process and waste gas treatment system |
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